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blk-mq: always free hctx after request queue is freed
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_nx2.c
blobfe856b602e03198686eec132fe55ed7f30676dda
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7
8 #include <linux/vmalloc.h>
9 #include <linux/delay.h>
10
11 #include "qla_def.h"
12 #include "qla_gbl.h"
13
14 #define TIMEOUT_100_MS 100
15
16 static const uint32_t qla8044_reg_tbl[] = {
17 QLA8044_PEG_HALT_STATUS1,
18 QLA8044_PEG_HALT_STATUS2,
19 QLA8044_PEG_ALIVE_COUNTER,
20 QLA8044_CRB_DRV_ACTIVE,
21 QLA8044_CRB_DEV_STATE,
22 QLA8044_CRB_DRV_STATE,
23 QLA8044_CRB_DRV_SCRATCH,
24 QLA8044_CRB_DEV_PART_INFO1,
25 QLA8044_CRB_IDC_VER_MAJOR,
26 QLA8044_FW_VER_MAJOR,
27 QLA8044_FW_VER_MINOR,
28 QLA8044_FW_VER_SUB,
29 QLA8044_CMDPEG_STATE,
30 QLA8044_ASIC_TEMP,
31 };
32
33 /* 8044 Flash Read/Write functions */
34 uint32_t
35 qla8044_rd_reg(struct qla_hw_data *ha, ulong addr)
36 {
37 return readl((void __iomem *) (ha->nx_pcibase + addr));
38 }
39
40 void
41 qla8044_wr_reg(struct qla_hw_data *ha, ulong addr, uint32_t val)
42 {
43 writel(val, (void __iomem *)((ha)->nx_pcibase + addr));
44 }
45
46 int
47 qla8044_rd_direct(struct scsi_qla_host *vha,
48 const uint32_t crb_reg)
49 {
50 struct qla_hw_data *ha = vha->hw;
51
52 if (crb_reg < CRB_REG_INDEX_MAX)
53 return qla8044_rd_reg(ha, qla8044_reg_tbl[crb_reg]);
54 else
55 return QLA_FUNCTION_FAILED;
56 }
57
58 void
59 qla8044_wr_direct(struct scsi_qla_host *vha,
60 const uint32_t crb_reg,
61 const uint32_t value)
62 {
63 struct qla_hw_data *ha = vha->hw;
64
65 if (crb_reg < CRB_REG_INDEX_MAX)
66 qla8044_wr_reg(ha, qla8044_reg_tbl[crb_reg], value);
67 }
68
69 static int
70 qla8044_set_win_base(scsi_qla_host_t *vha, uint32_t addr)
71 {
72 uint32_t val;
73 int ret_val = QLA_SUCCESS;
74 struct qla_hw_data *ha = vha->hw;
75
76 qla8044_wr_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum), addr);
77 val = qla8044_rd_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum));
78
79 if (val != addr) {
80 ql_log(ql_log_warn, vha, 0xb087,
81 "%s: Failed to set register window : "
82 "addr written 0x%x, read 0x%x!\n",
83 __func__, addr, val);
84 ret_val = QLA_FUNCTION_FAILED;
85 }
86 return ret_val;
87 }
88
89 static int
90 qla8044_rd_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data)
91 {
92 int ret_val = QLA_SUCCESS;
93 struct qla_hw_data *ha = vha->hw;
94
95 ret_val = qla8044_set_win_base(vha, addr);
96 if (!ret_val)
97 *data = qla8044_rd_reg(ha, QLA8044_WILDCARD);
98 else
99 ql_log(ql_log_warn, vha, 0xb088,
100 "%s: failed read of addr 0x%x!\n", __func__, addr);
101 return ret_val;
102 }
103
104 static int
105 qla8044_wr_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t data)
106 {
107 int ret_val = QLA_SUCCESS;
108 struct qla_hw_data *ha = vha->hw;
109
110 ret_val = qla8044_set_win_base(vha, addr);
111 if (!ret_val)
112 qla8044_wr_reg(ha, QLA8044_WILDCARD, data);
113 else
114 ql_log(ql_log_warn, vha, 0xb089,
115 "%s: failed wrt to addr 0x%x, data 0x%x\n",
116 __func__, addr, data);
117 return ret_val;
118 }
119
120 /*
121 * qla8044_read_write_crb_reg - Read from raddr and write value to waddr.
122 *
123 * @ha : Pointer to adapter structure
124 * @raddr : CRB address to read from
125 * @waddr : CRB address to write to
126 *
127 */
128 static void
129 qla8044_read_write_crb_reg(struct scsi_qla_host *vha,
130 uint32_t raddr, uint32_t waddr)
131 {
132 uint32_t value;
133
134 qla8044_rd_reg_indirect(vha, raddr, &value);
135 qla8044_wr_reg_indirect(vha, waddr, value);
136 }
137
138 static int
139 qla8044_poll_wait_for_ready(struct scsi_qla_host *vha, uint32_t addr1,
140 uint32_t mask)
141 {
142 unsigned long timeout;
143 uint32_t temp;
144
145 /* jiffies after 100ms */
146 timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
147 do {
148 qla8044_rd_reg_indirect(vha, addr1, &temp);
149 if ((temp & mask) != 0)
150 break;
151 if (time_after_eq(jiffies, timeout)) {
152 ql_log(ql_log_warn, vha, 0xb151,
153 "Error in processing rdmdio entry\n");
154 return -1;
155 }
156 } while (1);
157
158 return 0;
159 }
160
161 static uint32_t
162 qla8044_ipmdio_rd_reg(struct scsi_qla_host *vha,
163 uint32_t addr1, uint32_t addr3, uint32_t mask, uint32_t addr)
164 {
165 uint32_t temp;
166 int ret = 0;
167
168 ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
169 if (ret == -1)
170 return -1;
171
172 temp = (0x40000000 | addr);
173 qla8044_wr_reg_indirect(vha, addr1, temp);
174
175 ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
176 if (ret == -1)
177 return 0;
178
179 qla8044_rd_reg_indirect(vha, addr3, &ret);
180
181 return ret;
182 }
183
184
185 static int
186 qla8044_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *vha,
187 uint32_t addr1, uint32_t addr2, uint32_t addr3, uint32_t mask)
188 {
189 unsigned long timeout;
190 uint32_t temp;
191
192 /* jiffies after 100 msecs */
193 timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
194 do {
195 temp = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr2);
196 if ((temp & 0x1) != 1)
197 break;
198 if (time_after_eq(jiffies, timeout)) {
199 ql_log(ql_log_warn, vha, 0xb152,
200 "Error in processing mdiobus idle\n");
201 return -1;
202 }
203 } while (1);
204
205 return 0;
206 }
207
208 static int
209 qla8044_ipmdio_wr_reg(struct scsi_qla_host *vha, uint32_t addr1,
210 uint32_t addr3, uint32_t mask, uint32_t addr, uint32_t value)
211 {
212 int ret = 0;
213
214 ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
215 if (ret == -1)
216 return -1;
217
218 qla8044_wr_reg_indirect(vha, addr3, value);
219 qla8044_wr_reg_indirect(vha, addr1, addr);
220
221 ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
222 if (ret == -1)
223 return -1;
224
225 return 0;
226 }
227 /*
228 * qla8044_rmw_crb_reg - Read value from raddr, AND with test_mask,
229 * Shift Left,Right/OR/XOR with values RMW header and write value to waddr.
230 *
231 * @vha : Pointer to adapter structure
232 * @raddr : CRB address to read from
233 * @waddr : CRB address to write to
234 * @p_rmw_hdr : header with shift/or/xor values.
235 *
236 */
237 static void
238 qla8044_rmw_crb_reg(struct scsi_qla_host *vha,
239 uint32_t raddr, uint32_t waddr, struct qla8044_rmw *p_rmw_hdr)
240 {
241 uint32_t value;
242
243 if (p_rmw_hdr->index_a)
244 value = vha->reset_tmplt.array[p_rmw_hdr->index_a];
245 else
246 qla8044_rd_reg_indirect(vha, raddr, &value);
247 value &= p_rmw_hdr->test_mask;
248 value <<= p_rmw_hdr->shl;
249 value >>= p_rmw_hdr->shr;
250 value |= p_rmw_hdr->or_value;
251 value ^= p_rmw_hdr->xor_value;
252 qla8044_wr_reg_indirect(vha, waddr, value);
253 return;
254 }
255
256 static inline void
257 qla8044_set_qsnt_ready(struct scsi_qla_host *vha)
258 {
259 uint32_t qsnt_state;
260 struct qla_hw_data *ha = vha->hw;
261
262 qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
263 qsnt_state |= (1 << ha->portnum);
264 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
265 ql_log(ql_log_info, vha, 0xb08e, "%s(%ld): qsnt_state: 0x%08x\n",
266 __func__, vha->host_no, qsnt_state);
267 }
268
269 void
270 qla8044_clear_qsnt_ready(struct scsi_qla_host *vha)
271 {
272 uint32_t qsnt_state;
273 struct qla_hw_data *ha = vha->hw;
274
275 qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
276 qsnt_state &= ~(1 << ha->portnum);
277 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
278 ql_log(ql_log_info, vha, 0xb08f, "%s(%ld): qsnt_state: 0x%08x\n",
279 __func__, vha->host_no, qsnt_state);
280 }
281
282 /**
283 * qla8044_lock_recovery - Recovers the idc_lock.
284 * @vha : Pointer to adapter structure
285 *
286 * Lock Recovery Register
287 * 5-2 Lock recovery owner: Function ID of driver doing lock recovery,
288 * valid if bits 1..0 are set by driver doing lock recovery.
289 * 1-0 1 - Driver intends to force unlock the IDC lock.
290 * 2 - Driver is moving forward to unlock the IDC lock. Driver clears
291 * this field after force unlocking the IDC lock.
292 *
293 * Lock Recovery process
294 * a. Read the IDC_LOCK_RECOVERY register. If the value in bits 1..0 is
295 * greater than 0, then wait for the other driver to unlock otherwise
296 * move to the next step.
297 * b. Indicate intent to force-unlock by writing 1h to the IDC_LOCK_RECOVERY
298 * register bits 1..0 and also set the function# in bits 5..2.
299 * c. Read the IDC_LOCK_RECOVERY register again after a delay of 200ms.
300 * Wait for the other driver to perform lock recovery if the function
301 * number in bits 5..2 has changed, otherwise move to the next step.
302 * d. Write a value of 2h to the IDC_LOCK_RECOVERY register bits 1..0
303 * leaving your function# in bits 5..2.
304 * e. Force unlock using the DRIVER_UNLOCK register and immediately clear
305 * the IDC_LOCK_RECOVERY bits 5..0 by writing 0.
306 **/
307 static int
308 qla8044_lock_recovery(struct scsi_qla_host *vha)
309 {
310 uint32_t lock = 0, lockid;
311 struct qla_hw_data *ha = vha->hw;
312
313 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
314
315 /* Check for other Recovery in progress, go wait */
316 if ((lockid & IDC_LOCK_RECOVERY_STATE_MASK) != 0)
317 return QLA_FUNCTION_FAILED;
318
319 /* Intent to Recover */
320 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
321 (ha->portnum <<
322 IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | INTENT_TO_RECOVER);
323 msleep(200);
324
325 /* Check Intent to Recover is advertised */
326 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
327 if ((lockid & IDC_LOCK_RECOVERY_OWNER_MASK) != (ha->portnum <<
328 IDC_LOCK_RECOVERY_STATE_SHIFT_BITS))
329 return QLA_FUNCTION_FAILED;
330
331 ql_dbg(ql_dbg_p3p, vha, 0xb08B, "%s:%d: IDC Lock recovery initiated\n"
332 , __func__, ha->portnum);
333
334 /* Proceed to Recover */
335 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
336 (ha->portnum << IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) |
337 PROCEED_TO_RECOVER);
338
339 /* Force Unlock() */
340 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, 0xFF);
341 qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
342
343 /* Clear bits 0-5 in IDC_RECOVERY register*/
344 qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 0);
345
346 /* Get lock() */
347 lock = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
348 if (lock) {
349 lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
350 lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->portnum;
351 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lockid);
352 return QLA_SUCCESS;
353 } else
354 return QLA_FUNCTION_FAILED;
355 }
356
357 int
358 qla8044_idc_lock(struct qla_hw_data *ha)
359 {
360 uint32_t ret_val = QLA_SUCCESS, timeout = 0, status = 0;
361 uint32_t lock_id, lock_cnt, func_num, tmo_owner = 0, first_owner = 0;
362 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
363
364 while (status == 0) {
365 /* acquire semaphore5 from PCI HW block */
366 status = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
367
368 if (status) {
369 /* Increment Counter (8-31) and update func_num (0-7) on
370 * getting a successful lock */
371 lock_id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
372 lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->portnum;
373 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lock_id);
374 break;
375 }
376
377 if (timeout == 0)
378 first_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
379
380 if (++timeout >=
381 (QLA8044_DRV_LOCK_TIMEOUT / QLA8044_DRV_LOCK_MSLEEP)) {
382 tmo_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
383 func_num = tmo_owner & 0xFF;
384 lock_cnt = tmo_owner >> 8;
385 ql_log(ql_log_warn, vha, 0xb114,
386 "%s: Lock by func %d failed after 2s, lock held "
387 "by func %d, lock count %d, first_owner %d\n",
388 __func__, ha->portnum, func_num, lock_cnt,
389 (first_owner & 0xFF));
390 if (first_owner != tmo_owner) {
391 /* Some other driver got lock,
392 * OR same driver got lock again (counter
393 * value changed), when we were waiting for
394 * lock. Retry for another 2 sec */
395 ql_dbg(ql_dbg_p3p, vha, 0xb115,
396 "%s: %d: IDC lock failed\n",
397 __func__, ha->portnum);
398 timeout = 0;
399 } else {
400 /* Same driver holding lock > 2sec.
401 * Force Recovery */
402 if (qla8044_lock_recovery(vha) == QLA_SUCCESS) {
403 /* Recovered and got lock */
404 ret_val = QLA_SUCCESS;
405 ql_dbg(ql_dbg_p3p, vha, 0xb116,
406 "%s:IDC lock Recovery by %d"
407 "successful...\n", __func__,
408 ha->portnum);
409 }
410 /* Recovery Failed, some other function
411 * has the lock, wait for 2secs
412 * and retry
413 */
414 ql_dbg(ql_dbg_p3p, vha, 0xb08a,
415 "%s: IDC lock Recovery by %d "
416 "failed, Retrying timeout\n", __func__,
417 ha->portnum);
418 timeout = 0;
419 }
420 }
421 msleep(QLA8044_DRV_LOCK_MSLEEP);
422 }
423 return ret_val;
424 }
425
426 void
427 qla8044_idc_unlock(struct qla_hw_data *ha)
428 {
429 int id;
430 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
431
432 id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
433
434 if ((id & 0xFF) != ha->portnum) {
435 ql_log(ql_log_warn, vha, 0xb118,
436 "%s: IDC Unlock by %d failed, lock owner is %d!\n",
437 __func__, ha->portnum, (id & 0xFF));
438 return;
439 }
440
441 /* Keep lock counter value, update the ha->func_num to 0xFF */
442 qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, (id | 0xFF));
443 qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
444 }
445
446 /* 8044 Flash Lock/Unlock functions */
447 static int
448 qla8044_flash_lock(scsi_qla_host_t *vha)
449 {
450 int lock_owner;
451 int timeout = 0;
452 uint32_t lock_status = 0;
453 int ret_val = QLA_SUCCESS;
454 struct qla_hw_data *ha = vha->hw;
455
456 while (lock_status == 0) {
457 lock_status = qla8044_rd_reg(ha, QLA8044_FLASH_LOCK);
458 if (lock_status)
459 break;
460
461 if (++timeout >= QLA8044_FLASH_LOCK_TIMEOUT / 20) {
462 lock_owner = qla8044_rd_reg(ha,
463 QLA8044_FLASH_LOCK_ID);
464 ql_log(ql_log_warn, vha, 0xb113,
465 "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
466 __func__, ha->portnum, lock_owner);
467 ret_val = QLA_FUNCTION_FAILED;
468 break;
469 }
470 msleep(20);
471 }
472 qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, ha->portnum);
473 return ret_val;
474 }
475
476 static void
477 qla8044_flash_unlock(scsi_qla_host_t *vha)
478 {
479 struct qla_hw_data *ha = vha->hw;
480
481 /* Reading FLASH_UNLOCK register unlocks the Flash */
482 qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF);
483 qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK);
484 }
485
486
487 static
488 void qla8044_flash_lock_recovery(struct scsi_qla_host *vha)
489 {
490
491 if (qla8044_flash_lock(vha)) {
492 /* Someone else is holding the lock. */
493 ql_log(ql_log_warn, vha, 0xb120, "Resetting flash_lock\n");
494 }
495
496 /*
497 * Either we got the lock, or someone
498 * else died while holding it.
499 * In either case, unlock.
500 */
501 qla8044_flash_unlock(vha);
502 }
503
504 /*
505 * Address and length are byte address
506 */
507 static int
508 qla8044_read_flash_data(scsi_qla_host_t *vha, uint8_t *p_data,
509 uint32_t flash_addr, int u32_word_count)
510 {
511 int i, ret_val = QLA_SUCCESS;
512 uint32_t u32_word;
513
514 if (qla8044_flash_lock(vha) != QLA_SUCCESS) {
515 ret_val = QLA_FUNCTION_FAILED;
516 goto exit_lock_error;
517 }
518
519 if (flash_addr & 0x03) {
520 ql_log(ql_log_warn, vha, 0xb117,
521 "%s: Illegal addr = 0x%x\n", __func__, flash_addr);
522 ret_val = QLA_FUNCTION_FAILED;
523 goto exit_flash_read;
524 }
525
526 for (i = 0; i < u32_word_count; i++) {
527 if (qla8044_wr_reg_indirect(vha, QLA8044_FLASH_DIRECT_WINDOW,
528 (flash_addr & 0xFFFF0000))) {
529 ql_log(ql_log_warn, vha, 0xb119,
530 "%s: failed to write addr 0x%x to "
531 "FLASH_DIRECT_WINDOW\n! ",
532 __func__, flash_addr);
533 ret_val = QLA_FUNCTION_FAILED;
534 goto exit_flash_read;
535 }
536
537 ret_val = qla8044_rd_reg_indirect(vha,
538 QLA8044_FLASH_DIRECT_DATA(flash_addr),
539 &u32_word);
540 if (ret_val != QLA_SUCCESS) {
541 ql_log(ql_log_warn, vha, 0xb08c,
542 "%s: failed to read addr 0x%x!\n",
543 __func__, flash_addr);
544 goto exit_flash_read;
545 }
546
547 *(uint32_t *)p_data = u32_word;
548 p_data = p_data + 4;
549 flash_addr = flash_addr + 4;
550 }
551
552 exit_flash_read:
553 qla8044_flash_unlock(vha);
554
555 exit_lock_error:
556 return ret_val;
557 }
558
559 /*
560 * Address and length are byte address
561 */
562 uint8_t *
563 qla8044_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
564 uint32_t offset, uint32_t length)
565 {
566 scsi_block_requests(vha->host);
567 if (qla8044_read_flash_data(vha, (uint8_t *)buf, offset, length / 4)
568 != QLA_SUCCESS) {
569 ql_log(ql_log_warn, vha, 0xb08d,
570 "%s: Failed to read from flash\n",
571 __func__);
572 }
573 scsi_unblock_requests(vha->host);
574 return buf;
575 }
576
577 static inline int
578 qla8044_need_reset(struct scsi_qla_host *vha)
579 {
580 uint32_t drv_state, drv_active;
581 int rval;
582 struct qla_hw_data *ha = vha->hw;
583
584 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
585 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
586
587 rval = drv_state & (1 << ha->portnum);
588
589 if (ha->flags.eeh_busy && drv_active)
590 rval = 1;
591 return rval;
592 }
593
594 /*
595 * qla8044_write_list - Write the value (p_entry->arg2) to address specified
596 * by p_entry->arg1 for all entries in header with delay of p_hdr->delay between
597 * entries.
598 *
599 * @vha : Pointer to adapter structure
600 * @p_hdr : reset_entry header for WRITE_LIST opcode.
601 *
602 */
603 static void
604 qla8044_write_list(struct scsi_qla_host *vha,
605 struct qla8044_reset_entry_hdr *p_hdr)
606 {
607 struct qla8044_entry *p_entry;
608 uint32_t i;
609
610 p_entry = (struct qla8044_entry *)((char *)p_hdr +
611 sizeof(struct qla8044_reset_entry_hdr));
612
613 for (i = 0; i < p_hdr->count; i++, p_entry++) {
614 qla8044_wr_reg_indirect(vha, p_entry->arg1, p_entry->arg2);
615 if (p_hdr->delay)
616 udelay((uint32_t)(p_hdr->delay));
617 }
618 }
619
620 /*
621 * qla8044_read_write_list - Read from address specified by p_entry->arg1,
622 * write value read to address specified by p_entry->arg2, for all entries in
623 * header with delay of p_hdr->delay between entries.
624 *
625 * @vha : Pointer to adapter structure
626 * @p_hdr : reset_entry header for READ_WRITE_LIST opcode.
627 *
628 */
629 static void
630 qla8044_read_write_list(struct scsi_qla_host *vha,
631 struct qla8044_reset_entry_hdr *p_hdr)
632 {
633 struct qla8044_entry *p_entry;
634 uint32_t i;
635
636 p_entry = (struct qla8044_entry *)((char *)p_hdr +
637 sizeof(struct qla8044_reset_entry_hdr));
638
639 for (i = 0; i < p_hdr->count; i++, p_entry++) {
640 qla8044_read_write_crb_reg(vha, p_entry->arg1,
641 p_entry->arg2);
642 if (p_hdr->delay)
643 udelay((uint32_t)(p_hdr->delay));
644 }
645 }
646
647 /*
648 * qla8044_poll_reg - Poll the given CRB addr for duration msecs till
649 * value read ANDed with test_mask is equal to test_result.
650 *
651 * @ha : Pointer to adapter structure
652 * @addr : CRB register address
653 * @duration : Poll for total of "duration" msecs
654 * @test_mask : Mask value read with "test_mask"
655 * @test_result : Compare (value&test_mask) with test_result.
656 *
657 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
658 */
659 static int
660 qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr,
661 int duration, uint32_t test_mask, uint32_t test_result)
662 {
663 uint32_t value;
664 int timeout_error;
665 uint8_t retries;
666 int ret_val = QLA_SUCCESS;
667
668 ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
669 if (ret_val == QLA_FUNCTION_FAILED) {
670 timeout_error = 1;
671 goto exit_poll_reg;
672 }
673
674 /* poll every 1/10 of the total duration */
675 retries = duration/10;
676
677 do {
678 if ((value & test_mask) != test_result) {
679 timeout_error = 1;
680 msleep(duration/10);
681 ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
682 if (ret_val == QLA_FUNCTION_FAILED) {
683 timeout_error = 1;
684 goto exit_poll_reg;
685 }
686 } else {
687 timeout_error = 0;
688 break;
689 }
690 } while (retries--);
691
692 exit_poll_reg:
693 if (timeout_error) {
694 vha->reset_tmplt.seq_error++;
695 ql_log(ql_log_fatal, vha, 0xb090,
696 "%s: Poll Failed: 0x%08x 0x%08x 0x%08x\n",
697 __func__, value, test_mask, test_result);
698 }
699
700 return timeout_error;
701 }
702
703 /*
704 * qla8044_poll_list - For all entries in the POLL_LIST header, poll read CRB
705 * register specified by p_entry->arg1 and compare (value AND test_mask) with
706 * test_result to validate it. Wait for p_hdr->delay between processing entries.
707 *
708 * @ha : Pointer to adapter structure
709 * @p_hdr : reset_entry header for POLL_LIST opcode.
710 *
711 */
712 static void
713 qla8044_poll_list(struct scsi_qla_host *vha,
714 struct qla8044_reset_entry_hdr *p_hdr)
715 {
716 long delay;
717 struct qla8044_entry *p_entry;
718 struct qla8044_poll *p_poll;
719 uint32_t i;
720 uint32_t value;
721
722 p_poll = (struct qla8044_poll *)
723 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
724
725 /* Entries start after 8 byte qla8044_poll, poll header contains
726 * the test_mask, test_value.
727 */
728 p_entry = (struct qla8044_entry *)((char *)p_poll +
729 sizeof(struct qla8044_poll));
730
731 delay = (long)p_hdr->delay;
732
733 if (!delay) {
734 for (i = 0; i < p_hdr->count; i++, p_entry++)
735 qla8044_poll_reg(vha, p_entry->arg1,
736 delay, p_poll->test_mask, p_poll->test_value);
737 } else {
738 for (i = 0; i < p_hdr->count; i++, p_entry++) {
739 if (delay) {
740 if (qla8044_poll_reg(vha,
741 p_entry->arg1, delay,
742 p_poll->test_mask,
743 p_poll->test_value)) {
744 /*If
745 * (data_read&test_mask != test_value)
746 * read TIMEOUT_ADDR (arg1) and
747 * ADDR (arg2) registers
748 */
749 qla8044_rd_reg_indirect(vha,
750 p_entry->arg1, &value);
751 qla8044_rd_reg_indirect(vha,
752 p_entry->arg2, &value);
753 }
754 }
755 }
756 }
757 }
758
759 /*
760 * qla8044_poll_write_list - Write dr_value, ar_value to dr_addr/ar_addr,
761 * read ar_addr, if (value& test_mask != test_mask) re-read till timeout
762 * expires.
763 *
764 * @vha : Pointer to adapter structure
765 * @p_hdr : reset entry header for POLL_WRITE_LIST opcode.
766 *
767 */
768 static void
769 qla8044_poll_write_list(struct scsi_qla_host *vha,
770 struct qla8044_reset_entry_hdr *p_hdr)
771 {
772 long delay;
773 struct qla8044_quad_entry *p_entry;
774 struct qla8044_poll *p_poll;
775 uint32_t i;
776
777 p_poll = (struct qla8044_poll *)((char *)p_hdr +
778 sizeof(struct qla8044_reset_entry_hdr));
779
780 p_entry = (struct qla8044_quad_entry *)((char *)p_poll +
781 sizeof(struct qla8044_poll));
782
783 delay = (long)p_hdr->delay;
784
785 for (i = 0; i < p_hdr->count; i++, p_entry++) {
786 qla8044_wr_reg_indirect(vha,
787 p_entry->dr_addr, p_entry->dr_value);
788 qla8044_wr_reg_indirect(vha,
789 p_entry->ar_addr, p_entry->ar_value);
790 if (delay) {
791 if (qla8044_poll_reg(vha,
792 p_entry->ar_addr, delay,
793 p_poll->test_mask,
794 p_poll->test_value)) {
795 ql_dbg(ql_dbg_p3p, vha, 0xb091,
796 "%s: Timeout Error: poll list, ",
797 __func__);
798 ql_dbg(ql_dbg_p3p, vha, 0xb092,
799 "item_num %d, entry_num %d\n", i,
800 vha->reset_tmplt.seq_index);
801 }
802 }
803 }
804 }
805
806 /*
807 * qla8044_read_modify_write - Read value from p_entry->arg1, modify the
808 * value, write value to p_entry->arg2. Process entries with p_hdr->delay
809 * between entries.
810 *
811 * @vha : Pointer to adapter structure
812 * @p_hdr : header with shift/or/xor values.
813 *
814 */
815 static void
816 qla8044_read_modify_write(struct scsi_qla_host *vha,
817 struct qla8044_reset_entry_hdr *p_hdr)
818 {
819 struct qla8044_entry *p_entry;
820 struct qla8044_rmw *p_rmw_hdr;
821 uint32_t i;
822
823 p_rmw_hdr = (struct qla8044_rmw *)((char *)p_hdr +
824 sizeof(struct qla8044_reset_entry_hdr));
825
826 p_entry = (struct qla8044_entry *)((char *)p_rmw_hdr +
827 sizeof(struct qla8044_rmw));
828
829 for (i = 0; i < p_hdr->count; i++, p_entry++) {
830 qla8044_rmw_crb_reg(vha, p_entry->arg1,
831 p_entry->arg2, p_rmw_hdr);
832 if (p_hdr->delay)
833 udelay((uint32_t)(p_hdr->delay));
834 }
835 }
836
837 /*
838 * qla8044_pause - Wait for p_hdr->delay msecs, called between processing
839 * two entries of a sequence.
840 *
841 * @vha : Pointer to adapter structure
842 * @p_hdr : Common reset entry header.
843 *
844 */
845 static
846 void qla8044_pause(struct scsi_qla_host *vha,
847 struct qla8044_reset_entry_hdr *p_hdr)
848 {
849 if (p_hdr->delay)
850 mdelay((uint32_t)((long)p_hdr->delay));
851 }
852
853 /*
854 * qla8044_template_end - Indicates end of reset sequence processing.
855 *
856 * @vha : Pointer to adapter structure
857 * @p_hdr : Common reset entry header.
858 *
859 */
860 static void
861 qla8044_template_end(struct scsi_qla_host *vha,
862 struct qla8044_reset_entry_hdr *p_hdr)
863 {
864 vha->reset_tmplt.template_end = 1;
865
866 if (vha->reset_tmplt.seq_error == 0) {
867 ql_dbg(ql_dbg_p3p, vha, 0xb093,
868 "%s: Reset sequence completed SUCCESSFULLY.\n", __func__);
869 } else {
870 ql_log(ql_log_fatal, vha, 0xb094,
871 "%s: Reset sequence completed with some timeout "
872 "errors.\n", __func__);
873 }
874 }
875
876 /*
877 * qla8044_poll_read_list - Write ar_value to ar_addr register, read ar_addr,
878 * if (value & test_mask != test_value) re-read till timeout value expires,
879 * read dr_addr register and assign to reset_tmplt.array.
880 *
881 * @vha : Pointer to adapter structure
882 * @p_hdr : Common reset entry header.
883 *
884 */
885 static void
886 qla8044_poll_read_list(struct scsi_qla_host *vha,
887 struct qla8044_reset_entry_hdr *p_hdr)
888 {
889 long delay;
890 int index;
891 struct qla8044_quad_entry *p_entry;
892 struct qla8044_poll *p_poll;
893 uint32_t i;
894 uint32_t value;
895
896 p_poll = (struct qla8044_poll *)
897 ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
898
899 p_entry = (struct qla8044_quad_entry *)
900 ((char *)p_poll + sizeof(struct qla8044_poll));
901
902 delay = (long)p_hdr->delay;
903
904 for (i = 0; i < p_hdr->count; i++, p_entry++) {
905 qla8044_wr_reg_indirect(vha, p_entry->ar_addr,
906 p_entry->ar_value);
907 if (delay) {
908 if (qla8044_poll_reg(vha, p_entry->ar_addr, delay,
909 p_poll->test_mask, p_poll->test_value)) {
910 ql_dbg(ql_dbg_p3p, vha, 0xb095,
911 "%s: Timeout Error: poll "
912 "list, ", __func__);
913 ql_dbg(ql_dbg_p3p, vha, 0xb096,
914 "Item_num %d, "
915 "entry_num %d\n", i,
916 vha->reset_tmplt.seq_index);
917 } else {
918 index = vha->reset_tmplt.array_index;
919 qla8044_rd_reg_indirect(vha,
920 p_entry->dr_addr, &value);
921 vha->reset_tmplt.array[index++] = value;
922 if (index == QLA8044_MAX_RESET_SEQ_ENTRIES)
923 vha->reset_tmplt.array_index = 1;
924 }
925 }
926 }
927 }
928
929 /*
930 * qla8031_process_reset_template - Process all entries in reset template
931 * till entry with SEQ_END opcode, which indicates end of the reset template
932 * processing. Each entry has a Reset Entry header, entry opcode/command, with
933 * size of the entry, number of entries in sub-sequence and delay in microsecs
934 * or timeout in millisecs.
935 *
936 * @ha : Pointer to adapter structure
937 * @p_buff : Common reset entry header.
938 *
939 */
940 static void
941 qla8044_process_reset_template(struct scsi_qla_host *vha,
942 char *p_buff)
943 {
944 int index, entries;
945 struct qla8044_reset_entry_hdr *p_hdr;
946 char *p_entry = p_buff;
947
948 vha->reset_tmplt.seq_end = 0;
949 vha->reset_tmplt.template_end = 0;
950 entries = vha->reset_tmplt.hdr->entries;
951 index = vha->reset_tmplt.seq_index;
952
953 for (; (!vha->reset_tmplt.seq_end) && (index < entries); index++) {
954 p_hdr = (struct qla8044_reset_entry_hdr *)p_entry;
955 switch (p_hdr->cmd) {
956 case OPCODE_NOP:
957 break;
958 case OPCODE_WRITE_LIST:
959 qla8044_write_list(vha, p_hdr);
960 break;
961 case OPCODE_READ_WRITE_LIST:
962 qla8044_read_write_list(vha, p_hdr);
963 break;
964 case OPCODE_POLL_LIST:
965 qla8044_poll_list(vha, p_hdr);
966 break;
967 case OPCODE_POLL_WRITE_LIST:
968 qla8044_poll_write_list(vha, p_hdr);
969 break;
970 case OPCODE_READ_MODIFY_WRITE:
971 qla8044_read_modify_write(vha, p_hdr);
972 break;
973 case OPCODE_SEQ_PAUSE:
974 qla8044_pause(vha, p_hdr);
975 break;
976 case OPCODE_SEQ_END:
977 vha->reset_tmplt.seq_end = 1;
978 break;
979 case OPCODE_TMPL_END:
980 qla8044_template_end(vha, p_hdr);
981 break;
982 case OPCODE_POLL_READ_LIST:
983 qla8044_poll_read_list(vha, p_hdr);
984 break;
985 default:
986 ql_log(ql_log_fatal, vha, 0xb097,
987 "%s: Unknown command ==> 0x%04x on "
988 "entry = %d\n", __func__, p_hdr->cmd, index);
989 break;
990 }
991 /*
992 *Set pointer to next entry in the sequence.
993 */
994 p_entry += p_hdr->size;
995 }
996 vha->reset_tmplt.seq_index = index;
997 }
998
999 static void
1000 qla8044_process_init_seq(struct scsi_qla_host *vha)
1001 {
1002 qla8044_process_reset_template(vha,
1003 vha->reset_tmplt.init_offset);
1004 if (vha->reset_tmplt.seq_end != 1)
1005 ql_log(ql_log_fatal, vha, 0xb098,
1006 "%s: Abrupt INIT Sub-Sequence end.\n",
1007 __func__);
1008 }
1009
1010 static void
1011 qla8044_process_stop_seq(struct scsi_qla_host *vha)
1012 {
1013 vha->reset_tmplt.seq_index = 0;
1014 qla8044_process_reset_template(vha, vha->reset_tmplt.stop_offset);
1015 if (vha->reset_tmplt.seq_end != 1)
1016 ql_log(ql_log_fatal, vha, 0xb099,
1017 "%s: Abrupt STOP Sub-Sequence end.\n", __func__);
1018 }
1019
1020 static void
1021 qla8044_process_start_seq(struct scsi_qla_host *vha)
1022 {
1023 qla8044_process_reset_template(vha, vha->reset_tmplt.start_offset);
1024 if (vha->reset_tmplt.template_end != 1)
1025 ql_log(ql_log_fatal, vha, 0xb09a,
1026 "%s: Abrupt START Sub-Sequence end.\n",
1027 __func__);
1028 }
1029
1030 static int
1031 qla8044_lockless_flash_read_u32(struct scsi_qla_host *vha,
1032 uint32_t flash_addr, uint8_t *p_data, int u32_word_count)
1033 {
1034 uint32_t i;
1035 uint32_t u32_word;
1036 uint32_t flash_offset;
1037 uint32_t addr = flash_addr;
1038 int ret_val = QLA_SUCCESS;
1039
1040 flash_offset = addr & (QLA8044_FLASH_SECTOR_SIZE - 1);
1041
1042 if (addr & 0x3) {
1043 ql_log(ql_log_fatal, vha, 0xb09b, "%s: Illegal addr = 0x%x\n",
1044 __func__, addr);
1045 ret_val = QLA_FUNCTION_FAILED;
1046 goto exit_lockless_read;
1047 }
1048
1049 ret_val = qla8044_wr_reg_indirect(vha,
1050 QLA8044_FLASH_DIRECT_WINDOW, (addr));
1051
1052 if (ret_val != QLA_SUCCESS) {
1053 ql_log(ql_log_fatal, vha, 0xb09c,
1054 "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n",
1055 __func__, addr);
1056 goto exit_lockless_read;
1057 }
1058
1059 /* Check if data is spread across multiple sectors */
1060 if ((flash_offset + (u32_word_count * sizeof(uint32_t))) >
1061 (QLA8044_FLASH_SECTOR_SIZE - 1)) {
1062 /* Multi sector read */
1063 for (i = 0; i < u32_word_count; i++) {
1064 ret_val = qla8044_rd_reg_indirect(vha,
1065 QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
1066 if (ret_val != QLA_SUCCESS) {
1067 ql_log(ql_log_fatal, vha, 0xb09d,
1068 "%s: failed to read addr 0x%x!\n",
1069 __func__, addr);
1070 goto exit_lockless_read;
1071 }
1072 *(uint32_t *)p_data = u32_word;
1073 p_data = p_data + 4;
1074 addr = addr + 4;
1075 flash_offset = flash_offset + 4;
1076 if (flash_offset > (QLA8044_FLASH_SECTOR_SIZE - 1)) {
1077 /* This write is needed once for each sector */
1078 ret_val = qla8044_wr_reg_indirect(vha,
1079 QLA8044_FLASH_DIRECT_WINDOW, (addr));
1080 if (ret_val != QLA_SUCCESS) {
1081 ql_log(ql_log_fatal, vha, 0xb09f,
1082 "%s: failed to write addr "
1083 "0x%x to FLASH_DIRECT_WINDOW!\n",
1084 __func__, addr);
1085 goto exit_lockless_read;
1086 }
1087 flash_offset = 0;
1088 }
1089 }
1090 } else {
1091 /* Single sector read */
1092 for (i = 0; i < u32_word_count; i++) {
1093 ret_val = qla8044_rd_reg_indirect(vha,
1094 QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
1095 if (ret_val != QLA_SUCCESS) {
1096 ql_log(ql_log_fatal, vha, 0xb0a0,
1097 "%s: failed to read addr 0x%x!\n",
1098 __func__, addr);
1099 goto exit_lockless_read;
1100 }
1101 *(uint32_t *)p_data = u32_word;
1102 p_data = p_data + 4;
1103 addr = addr + 4;
1104 }
1105 }
1106
1107 exit_lockless_read:
1108 return ret_val;
1109 }
1110
1111 /*
1112 * qla8044_ms_mem_write_128b - Writes data to MS/off-chip memory
1113 *
1114 * @vha : Pointer to adapter structure
1115 * addr : Flash address to write to
1116 * data : Data to be written
1117 * count : word_count to be written
1118 *
1119 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1120 */
1121 static int
1122 qla8044_ms_mem_write_128b(struct scsi_qla_host *vha,
1123 uint64_t addr, uint32_t *data, uint32_t count)
1124 {
1125 int i, j, ret_val = QLA_SUCCESS;
1126 uint32_t agt_ctrl;
1127 unsigned long flags;
1128 struct qla_hw_data *ha = vha->hw;
1129
1130 /* Only 128-bit aligned access */
1131 if (addr & 0xF) {
1132 ret_val = QLA_FUNCTION_FAILED;
1133 goto exit_ms_mem_write;
1134 }
1135 write_lock_irqsave(&ha->hw_lock, flags);
1136
1137 /* Write address */
1138 ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, 0);
1139 if (ret_val == QLA_FUNCTION_FAILED) {
1140 ql_log(ql_log_fatal, vha, 0xb0a1,
1141 "%s: write to AGT_ADDR_HI failed!\n", __func__);
1142 goto exit_ms_mem_write_unlock;
1143 }
1144
1145 for (i = 0; i < count; i++, addr += 16) {
1146 if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET,
1147 QLA8044_ADDR_QDR_NET_MAX)) ||
1148 (addr_in_range(addr, QLA8044_ADDR_DDR_NET,
1149 QLA8044_ADDR_DDR_NET_MAX)))) {
1150 ret_val = QLA_FUNCTION_FAILED;
1151 goto exit_ms_mem_write_unlock;
1152 }
1153
1154 ret_val = qla8044_wr_reg_indirect(vha,
1155 MD_MIU_TEST_AGT_ADDR_LO, addr);
1156
1157 /* Write data */
1158 ret_val += qla8044_wr_reg_indirect(vha,
1159 MD_MIU_TEST_AGT_WRDATA_LO, *data++);
1160 ret_val += qla8044_wr_reg_indirect(vha,
1161 MD_MIU_TEST_AGT_WRDATA_HI, *data++);
1162 ret_val += qla8044_wr_reg_indirect(vha,
1163 MD_MIU_TEST_AGT_WRDATA_ULO, *data++);
1164 ret_val += qla8044_wr_reg_indirect(vha,
1165 MD_MIU_TEST_AGT_WRDATA_UHI, *data++);
1166 if (ret_val == QLA_FUNCTION_FAILED) {
1167 ql_log(ql_log_fatal, vha, 0xb0a2,
1168 "%s: write to AGT_WRDATA failed!\n",
1169 __func__);
1170 goto exit_ms_mem_write_unlock;
1171 }
1172
1173 /* Check write status */
1174 ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
1175 MIU_TA_CTL_WRITE_ENABLE);
1176 ret_val += qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
1177 MIU_TA_CTL_WRITE_START);
1178 if (ret_val == QLA_FUNCTION_FAILED) {
1179 ql_log(ql_log_fatal, vha, 0xb0a3,
1180 "%s: write to AGT_CTRL failed!\n", __func__);
1181 goto exit_ms_mem_write_unlock;
1182 }
1183
1184 for (j = 0; j < MAX_CTL_CHECK; j++) {
1185 ret_val = qla8044_rd_reg_indirect(vha,
1186 MD_MIU_TEST_AGT_CTRL, &agt_ctrl);
1187 if (ret_val == QLA_FUNCTION_FAILED) {
1188 ql_log(ql_log_fatal, vha, 0xb0a4,
1189 "%s: failed to read "
1190 "MD_MIU_TEST_AGT_CTRL!\n", __func__);
1191 goto exit_ms_mem_write_unlock;
1192 }
1193 if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
1194 break;
1195 }
1196
1197 /* Status check failed */
1198 if (j >= MAX_CTL_CHECK) {
1199 ql_log(ql_log_fatal, vha, 0xb0a5,
1200 "%s: MS memory write failed!\n",
1201 __func__);
1202 ret_val = QLA_FUNCTION_FAILED;
1203 goto exit_ms_mem_write_unlock;
1204 }
1205 }
1206
1207 exit_ms_mem_write_unlock:
1208 write_unlock_irqrestore(&ha->hw_lock, flags);
1209
1210 exit_ms_mem_write:
1211 return ret_val;
1212 }
1213
1214 static int
1215 qla8044_copy_bootloader(struct scsi_qla_host *vha)
1216 {
1217 uint8_t *p_cache;
1218 uint32_t src, count, size;
1219 uint64_t dest;
1220 int ret_val = QLA_SUCCESS;
1221 struct qla_hw_data *ha = vha->hw;
1222
1223 src = QLA8044_BOOTLOADER_FLASH_ADDR;
1224 dest = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_ADDR);
1225 size = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_SIZE);
1226
1227 /* 128 bit alignment check */
1228 if (size & 0xF)
1229 size = (size + 16) & ~0xF;
1230
1231 /* 16 byte count */
1232 count = size/16;
1233
1234 p_cache = vmalloc(size);
1235 if (p_cache == NULL) {
1236 ql_log(ql_log_fatal, vha, 0xb0a6,
1237 "%s: Failed to allocate memory for "
1238 "boot loader cache\n", __func__);
1239 ret_val = QLA_FUNCTION_FAILED;
1240 goto exit_copy_bootloader;
1241 }
1242
1243 ret_val = qla8044_lockless_flash_read_u32(vha, src,
1244 p_cache, size/sizeof(uint32_t));
1245 if (ret_val == QLA_FUNCTION_FAILED) {
1246 ql_log(ql_log_fatal, vha, 0xb0a7,
1247 "%s: Error reading F/W from flash!!!\n", __func__);
1248 goto exit_copy_error;
1249 }
1250 ql_dbg(ql_dbg_p3p, vha, 0xb0a8, "%s: Read F/W from flash!\n",
1251 __func__);
1252
1253 /* 128 bit/16 byte write to MS memory */
1254 ret_val = qla8044_ms_mem_write_128b(vha, dest,
1255 (uint32_t *)p_cache, count);
1256 if (ret_val == QLA_FUNCTION_FAILED) {
1257 ql_log(ql_log_fatal, vha, 0xb0a9,
1258 "%s: Error writing F/W to MS !!!\n", __func__);
1259 goto exit_copy_error;
1260 }
1261 ql_dbg(ql_dbg_p3p, vha, 0xb0aa,
1262 "%s: Wrote F/W (size %d) to MS !!!\n",
1263 __func__, size);
1264
1265 exit_copy_error:
1266 vfree(p_cache);
1267
1268 exit_copy_bootloader:
1269 return ret_val;
1270 }
1271
1272 static int
1273 qla8044_restart(struct scsi_qla_host *vha)
1274 {
1275 int ret_val = QLA_SUCCESS;
1276 struct qla_hw_data *ha = vha->hw;
1277
1278 qla8044_process_stop_seq(vha);
1279
1280 /* Collect minidump */
1281 if (ql2xmdenable)
1282 qla8044_get_minidump(vha);
1283 else
1284 ql_log(ql_log_fatal, vha, 0xb14c,
1285 "Minidump disabled.\n");
1286
1287 qla8044_process_init_seq(vha);
1288
1289 if (qla8044_copy_bootloader(vha)) {
1290 ql_log(ql_log_fatal, vha, 0xb0ab,
1291 "%s: Copy bootloader, firmware restart failed!\n",
1292 __func__);
1293 ret_val = QLA_FUNCTION_FAILED;
1294 goto exit_restart;
1295 }
1296
1297 /*
1298 * Loads F/W from flash
1299 */
1300 qla8044_wr_reg(ha, QLA8044_FW_IMAGE_VALID, QLA8044_BOOT_FROM_FLASH);
1301
1302 qla8044_process_start_seq(vha);
1303
1304 exit_restart:
1305 return ret_val;
1306 }
1307
1308 /*
1309 * qla8044_check_cmd_peg_status - Check peg status to see if Peg is
1310 * initialized.
1311 *
1312 * @ha : Pointer to adapter structure
1313 *
1314 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1315 */
1316 static int
1317 qla8044_check_cmd_peg_status(struct scsi_qla_host *vha)
1318 {
1319 uint32_t val, ret_val = QLA_FUNCTION_FAILED;
1320 int retries = CRB_CMDPEG_CHECK_RETRY_COUNT;
1321 struct qla_hw_data *ha = vha->hw;
1322
1323 do {
1324 val = qla8044_rd_reg(ha, QLA8044_CMDPEG_STATE);
1325 if (val == PHAN_INITIALIZE_COMPLETE) {
1326 ql_dbg(ql_dbg_p3p, vha, 0xb0ac,
1327 "%s: Command Peg initialization "
1328 "complete! state=0x%x\n", __func__, val);
1329 ret_val = QLA_SUCCESS;
1330 break;
1331 }
1332 msleep(CRB_CMDPEG_CHECK_DELAY);
1333 } while (--retries);
1334
1335 return ret_val;
1336 }
1337
1338 static int
1339 qla8044_start_firmware(struct scsi_qla_host *vha)
1340 {
1341 int ret_val = QLA_SUCCESS;
1342
1343 if (qla8044_restart(vha)) {
1344 ql_log(ql_log_fatal, vha, 0xb0ad,
1345 "%s: Restart Error!!!, Need Reset!!!\n",
1346 __func__);
1347 ret_val = QLA_FUNCTION_FAILED;
1348 goto exit_start_fw;
1349 } else
1350 ql_dbg(ql_dbg_p3p, vha, 0xb0af,
1351 "%s: Restart done!\n", __func__);
1352
1353 ret_val = qla8044_check_cmd_peg_status(vha);
1354 if (ret_val) {
1355 ql_log(ql_log_fatal, vha, 0xb0b0,
1356 "%s: Peg not initialized!\n", __func__);
1357 ret_val = QLA_FUNCTION_FAILED;
1358 }
1359
1360 exit_start_fw:
1361 return ret_val;
1362 }
1363
1364 void
1365 qla8044_clear_drv_active(struct qla_hw_data *ha)
1366 {
1367 uint32_t drv_active;
1368 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
1369
1370 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1371 drv_active &= ~(1 << (ha->portnum));
1372
1373 ql_log(ql_log_info, vha, 0xb0b1,
1374 "%s(%ld): drv_active: 0x%08x\n",
1375 __func__, vha->host_no, drv_active);
1376
1377 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
1378 }
1379
1380 /*
1381 * qla8044_device_bootstrap - Initialize device, set DEV_READY, start fw
1382 * @ha: pointer to adapter structure
1383 *
1384 * Note: IDC lock must be held upon entry
1385 **/
1386 static int
1387 qla8044_device_bootstrap(struct scsi_qla_host *vha)
1388 {
1389 int rval = QLA_FUNCTION_FAILED;
1390 int i;
1391 uint32_t old_count = 0, count = 0;
1392 int need_reset = 0;
1393 uint32_t idc_ctrl;
1394 struct qla_hw_data *ha = vha->hw;
1395
1396 need_reset = qla8044_need_reset(vha);
1397
1398 if (!need_reset) {
1399 old_count = qla8044_rd_direct(vha,
1400 QLA8044_PEG_ALIVE_COUNTER_INDEX);
1401
1402 for (i = 0; i < 10; i++) {
1403 msleep(200);
1404
1405 count = qla8044_rd_direct(vha,
1406 QLA8044_PEG_ALIVE_COUNTER_INDEX);
1407 if (count != old_count) {
1408 rval = QLA_SUCCESS;
1409 goto dev_ready;
1410 }
1411 }
1412 qla8044_flash_lock_recovery(vha);
1413 } else {
1414 /* We are trying to perform a recovery here. */
1415 if (ha->flags.isp82xx_fw_hung)
1416 qla8044_flash_lock_recovery(vha);
1417 }
1418
1419 /* set to DEV_INITIALIZING */
1420 ql_log(ql_log_info, vha, 0xb0b2,
1421 "%s: HW State: INITIALIZING\n", __func__);
1422 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1423 QLA8XXX_DEV_INITIALIZING);
1424
1425 qla8044_idc_unlock(ha);
1426 rval = qla8044_start_firmware(vha);
1427 qla8044_idc_lock(ha);
1428
1429 if (rval != QLA_SUCCESS) {
1430 ql_log(ql_log_info, vha, 0xb0b3,
1431 "%s: HW State: FAILED\n", __func__);
1432 qla8044_clear_drv_active(ha);
1433 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1434 QLA8XXX_DEV_FAILED);
1435 return rval;
1436 }
1437
1438 /* For ISP8044, If IDC_CTRL GRACEFUL_RESET_BIT1 is set , reset it after
1439 * device goes to INIT state. */
1440 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1441 if (idc_ctrl & GRACEFUL_RESET_BIT1) {
1442 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
1443 (idc_ctrl & ~GRACEFUL_RESET_BIT1));
1444 ha->fw_dumped = 0;
1445 }
1446
1447 dev_ready:
1448 ql_log(ql_log_info, vha, 0xb0b4,
1449 "%s: HW State: READY\n", __func__);
1450 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, QLA8XXX_DEV_READY);
1451
1452 return rval;
1453 }
1454
1455 /*-------------------------Reset Sequence Functions-----------------------*/
1456 static void
1457 qla8044_dump_reset_seq_hdr(struct scsi_qla_host *vha)
1458 {
1459 u8 *phdr;
1460
1461 if (!vha->reset_tmplt.buff) {
1462 ql_log(ql_log_fatal, vha, 0xb0b5,
1463 "%s: Error Invalid reset_seq_template\n", __func__);
1464 return;
1465 }
1466
1467 phdr = vha->reset_tmplt.buff;
1468 ql_dbg(ql_dbg_p3p, vha, 0xb0b6,
1469 "Reset Template :\n\t0x%X 0x%X 0x%X 0x%X"
1470 "0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n"
1471 "\t0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n\n",
1472 *phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4),
1473 *(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8),
1474 *(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12),
1475 *(phdr+13), *(phdr+14), *(phdr+15));
1476 }
1477
1478 /*
1479 * qla8044_reset_seq_checksum_test - Validate Reset Sequence template.
1480 *
1481 * @ha : Pointer to adapter structure
1482 *
1483 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
1484 */
1485 static int
1486 qla8044_reset_seq_checksum_test(struct scsi_qla_host *vha)
1487 {
1488 uint32_t sum = 0;
1489 uint16_t *buff = (uint16_t *)vha->reset_tmplt.buff;
1490 int u16_count = vha->reset_tmplt.hdr->size / sizeof(uint16_t);
1491
1492 while (u16_count-- > 0)
1493 sum += *buff++;
1494
1495 while (sum >> 16)
1496 sum = (sum & 0xFFFF) + (sum >> 16);
1497
1498 /* checksum of 0 indicates a valid template */
1499 if (~sum) {
1500 return QLA_SUCCESS;
1501 } else {
1502 ql_log(ql_log_fatal, vha, 0xb0b7,
1503 "%s: Reset seq checksum failed\n", __func__);
1504 return QLA_FUNCTION_FAILED;
1505 }
1506 }
1507
1508 /*
1509 * qla8044_read_reset_template - Read Reset Template from Flash, validate
1510 * the template and store offsets of stop/start/init offsets in ha->reset_tmplt.
1511 *
1512 * @ha : Pointer to adapter structure
1513 */
1514 void
1515 qla8044_read_reset_template(struct scsi_qla_host *vha)
1516 {
1517 uint8_t *p_buff;
1518 uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size;
1519
1520 vha->reset_tmplt.seq_error = 0;
1521 vha->reset_tmplt.buff = vmalloc(QLA8044_RESTART_TEMPLATE_SIZE);
1522 if (vha->reset_tmplt.buff == NULL) {
1523 ql_log(ql_log_fatal, vha, 0xb0b8,
1524 "%s: Failed to allocate reset template resources\n",
1525 __func__);
1526 goto exit_read_reset_template;
1527 }
1528
1529 p_buff = vha->reset_tmplt.buff;
1530 addr = QLA8044_RESET_TEMPLATE_ADDR;
1531
1532 tmplt_hdr_def_size =
1533 sizeof(struct qla8044_reset_template_hdr) / sizeof(uint32_t);
1534
1535 ql_dbg(ql_dbg_p3p, vha, 0xb0b9,
1536 "%s: Read template hdr size %d from Flash\n",
1537 __func__, tmplt_hdr_def_size);
1538
1539 /* Copy template header from flash */
1540 if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
1541 ql_log(ql_log_fatal, vha, 0xb0ba,
1542 "%s: Failed to read reset template\n", __func__);
1543 goto exit_read_template_error;
1544 }
1545
1546 vha->reset_tmplt.hdr =
1547 (struct qla8044_reset_template_hdr *) vha->reset_tmplt.buff;
1548
1549 /* Validate the template header size and signature */
1550 tmplt_hdr_size = vha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t);
1551 if ((tmplt_hdr_size != tmplt_hdr_def_size) ||
1552 (vha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) {
1553 ql_log(ql_log_fatal, vha, 0xb0bb,
1554 "%s: Template Header size invalid %d "
1555 "tmplt_hdr_def_size %d!!!\n", __func__,
1556 tmplt_hdr_size, tmplt_hdr_def_size);
1557 goto exit_read_template_error;
1558 }
1559
1560 addr = QLA8044_RESET_TEMPLATE_ADDR + vha->reset_tmplt.hdr->hdr_size;
1561 p_buff = vha->reset_tmplt.buff + vha->reset_tmplt.hdr->hdr_size;
1562 tmplt_hdr_def_size = (vha->reset_tmplt.hdr->size -
1563 vha->reset_tmplt.hdr->hdr_size)/sizeof(uint32_t);
1564
1565 ql_dbg(ql_dbg_p3p, vha, 0xb0bc,
1566 "%s: Read rest of the template size %d\n",
1567 __func__, vha->reset_tmplt.hdr->size);
1568
1569 /* Copy rest of the template */
1570 if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
1571 ql_log(ql_log_fatal, vha, 0xb0bd,
1572 "%s: Failed to read reset template\n", __func__);
1573 goto exit_read_template_error;
1574 }
1575
1576 /* Integrity check */
1577 if (qla8044_reset_seq_checksum_test(vha)) {
1578 ql_log(ql_log_fatal, vha, 0xb0be,
1579 "%s: Reset Seq checksum failed!\n", __func__);
1580 goto exit_read_template_error;
1581 }
1582
1583 ql_dbg(ql_dbg_p3p, vha, 0xb0bf,
1584 "%s: Reset Seq checksum passed! Get stop, "
1585 "start and init seq offsets\n", __func__);
1586
1587 /* Get STOP, START, INIT sequence offsets */
1588 vha->reset_tmplt.init_offset = vha->reset_tmplt.buff +
1589 vha->reset_tmplt.hdr->init_seq_offset;
1590
1591 vha->reset_tmplt.start_offset = vha->reset_tmplt.buff +
1592 vha->reset_tmplt.hdr->start_seq_offset;
1593
1594 vha->reset_tmplt.stop_offset = vha->reset_tmplt.buff +
1595 vha->reset_tmplt.hdr->hdr_size;
1596
1597 qla8044_dump_reset_seq_hdr(vha);
1598
1599 goto exit_read_reset_template;
1600
1601 exit_read_template_error:
1602 vfree(vha->reset_tmplt.buff);
1603
1604 exit_read_reset_template:
1605 return;
1606 }
1607
1608 void
1609 qla8044_set_idc_dontreset(struct scsi_qla_host *vha)
1610 {
1611 uint32_t idc_ctrl;
1612 struct qla_hw_data *ha = vha->hw;
1613
1614 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1615 idc_ctrl |= DONTRESET_BIT0;
1616 ql_dbg(ql_dbg_p3p, vha, 0xb0c0,
1617 "%s: idc_ctrl = %d\n", __func__, idc_ctrl);
1618 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
1619 }
1620
1621 static inline void
1622 qla8044_set_rst_ready(struct scsi_qla_host *vha)
1623 {
1624 uint32_t drv_state;
1625 struct qla_hw_data *ha = vha->hw;
1626
1627 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
1628
1629 /* For ISP8044, drv_active register has 1 bit per function,
1630 * shift 1 by func_num to set a bit for the function.*/
1631 drv_state |= (1 << ha->portnum);
1632
1633 ql_log(ql_log_info, vha, 0xb0c1,
1634 "%s(%ld): drv_state: 0x%08x\n",
1635 __func__, vha->host_no, drv_state);
1636 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
1637 }
1638
1639 /**
1640 * qla8044_need_reset_handler - Code to start reset sequence
1641 * @vha: pointer to adapter structure
1642 *
1643 * Note: IDC lock must be held upon entry
1644 */
1645 static void
1646 qla8044_need_reset_handler(struct scsi_qla_host *vha)
1647 {
1648 uint32_t dev_state = 0, drv_state, drv_active;
1649 unsigned long reset_timeout;
1650 struct qla_hw_data *ha = vha->hw;
1651
1652 ql_log(ql_log_fatal, vha, 0xb0c2,
1653 "%s: Performing ISP error recovery\n", __func__);
1654
1655 if (vha->flags.online) {
1656 qla8044_idc_unlock(ha);
1657 qla2x00_abort_isp_cleanup(vha);
1658 ha->isp_ops->get_flash_version(vha, vha->req->ring);
1659 ha->isp_ops->nvram_config(vha);
1660 qla8044_idc_lock(ha);
1661 }
1662
1663 dev_state = qla8044_rd_direct(vha,
1664 QLA8044_CRB_DEV_STATE_INDEX);
1665 drv_state = qla8044_rd_direct(vha,
1666 QLA8044_CRB_DRV_STATE_INDEX);
1667 drv_active = qla8044_rd_direct(vha,
1668 QLA8044_CRB_DRV_ACTIVE_INDEX);
1669
1670 ql_log(ql_log_info, vha, 0xb0c5,
1671 "%s(%ld): drv_state = 0x%x, drv_active = 0x%x dev_state = 0x%x\n",
1672 __func__, vha->host_no, drv_state, drv_active, dev_state);
1673
1674 qla8044_set_rst_ready(vha);
1675
1676 /* wait for 10 seconds for reset ack from all functions */
1677 reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
1678
1679 do {
1680 if (time_after_eq(jiffies, reset_timeout)) {
1681 ql_log(ql_log_info, vha, 0xb0c4,
1682 "%s: Function %d: Reset Ack Timeout!, drv_state: 0x%08x, drv_active: 0x%08x\n",
1683 __func__, ha->portnum, drv_state, drv_active);
1684 break;
1685 }
1686
1687 qla8044_idc_unlock(ha);
1688 msleep(1000);
1689 qla8044_idc_lock(ha);
1690
1691 dev_state = qla8044_rd_direct(vha,
1692 QLA8044_CRB_DEV_STATE_INDEX);
1693 drv_state = qla8044_rd_direct(vha,
1694 QLA8044_CRB_DRV_STATE_INDEX);
1695 drv_active = qla8044_rd_direct(vha,
1696 QLA8044_CRB_DRV_ACTIVE_INDEX);
1697 } while (((drv_state & drv_active) != drv_active) &&
1698 (dev_state == QLA8XXX_DEV_NEED_RESET));
1699
1700 /* Remove IDC participation of functions not acknowledging */
1701 if (drv_state != drv_active) {
1702 ql_log(ql_log_info, vha, 0xb0c7,
1703 "%s(%ld): Function %d turning off drv_active of non-acking function 0x%x\n",
1704 __func__, vha->host_no, ha->portnum,
1705 (drv_active ^ drv_state));
1706 drv_active = drv_active & drv_state;
1707 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX,
1708 drv_active);
1709 } else {
1710 /*
1711 * Reset owner should execute reset recovery,
1712 * if all functions acknowledged
1713 */
1714 if ((ha->flags.nic_core_reset_owner) &&
1715 (dev_state == QLA8XXX_DEV_NEED_RESET)) {
1716 ha->flags.nic_core_reset_owner = 0;
1717 qla8044_device_bootstrap(vha);
1718 return;
1719 }
1720 }
1721
1722 /* Exit if non active function */
1723 if (!(drv_active & (1 << ha->portnum))) {
1724 ha->flags.nic_core_reset_owner = 0;
1725 return;
1726 }
1727
1728 /*
1729 * Execute Reset Recovery if Reset Owner or Function 7
1730 * is the only active function
1731 */
1732 if (ha->flags.nic_core_reset_owner ||
1733 ((drv_state & drv_active) == QLA8044_FUN7_ACTIVE_INDEX)) {
1734 ha->flags.nic_core_reset_owner = 0;
1735 qla8044_device_bootstrap(vha);
1736 }
1737 }
1738
1739 static void
1740 qla8044_set_drv_active(struct scsi_qla_host *vha)
1741 {
1742 uint32_t drv_active;
1743 struct qla_hw_data *ha = vha->hw;
1744
1745 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1746
1747 /* For ISP8044, drv_active register has 1 bit per function,
1748 * shift 1 by func_num to set a bit for the function.*/
1749 drv_active |= (1 << ha->portnum);
1750
1751 ql_log(ql_log_info, vha, 0xb0c8,
1752 "%s(%ld): drv_active: 0x%08x\n",
1753 __func__, vha->host_no, drv_active);
1754 qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
1755 }
1756
1757 static int
1758 qla8044_check_drv_active(struct scsi_qla_host *vha)
1759 {
1760 uint32_t drv_active;
1761 struct qla_hw_data *ha = vha->hw;
1762
1763 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1764 if (drv_active & (1 << ha->portnum))
1765 return QLA_SUCCESS;
1766 else
1767 return QLA_TEST_FAILED;
1768 }
1769
1770 static void
1771 qla8044_clear_idc_dontreset(struct scsi_qla_host *vha)
1772 {
1773 uint32_t idc_ctrl;
1774 struct qla_hw_data *ha = vha->hw;
1775
1776 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
1777 idc_ctrl &= ~DONTRESET_BIT0;
1778 ql_log(ql_log_info, vha, 0xb0c9,
1779 "%s: idc_ctrl = %d\n", __func__,
1780 idc_ctrl);
1781 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
1782 }
1783
1784 static int
1785 qla8044_set_idc_ver(struct scsi_qla_host *vha)
1786 {
1787 int idc_ver;
1788 uint32_t drv_active;
1789 int rval = QLA_SUCCESS;
1790 struct qla_hw_data *ha = vha->hw;
1791
1792 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1793 if (drv_active == (1 << ha->portnum)) {
1794 idc_ver = qla8044_rd_direct(vha,
1795 QLA8044_CRB_DRV_IDC_VERSION_INDEX);
1796 idc_ver &= (~0xFF);
1797 idc_ver |= QLA8044_IDC_VER_MAJ_VALUE;
1798 qla8044_wr_direct(vha, QLA8044_CRB_DRV_IDC_VERSION_INDEX,
1799 idc_ver);
1800 ql_log(ql_log_info, vha, 0xb0ca,
1801 "%s: IDC version updated to %d\n",
1802 __func__, idc_ver);
1803 } else {
1804 idc_ver = qla8044_rd_direct(vha,
1805 QLA8044_CRB_DRV_IDC_VERSION_INDEX);
1806 idc_ver &= 0xFF;
1807 if (QLA8044_IDC_VER_MAJ_VALUE != idc_ver) {
1808 ql_log(ql_log_info, vha, 0xb0cb,
1809 "%s: qla4xxx driver IDC version %d "
1810 "is not compatible with IDC version %d "
1811 "of other drivers!\n",
1812 __func__, QLA8044_IDC_VER_MAJ_VALUE,
1813 idc_ver);
1814 rval = QLA_FUNCTION_FAILED;
1815 goto exit_set_idc_ver;
1816 }
1817 }
1818
1819 /* Update IDC_MINOR_VERSION */
1820 idc_ver = qla8044_rd_reg(ha, QLA8044_CRB_IDC_VER_MINOR);
1821 idc_ver &= ~(0x03 << (ha->portnum * 2));
1822 idc_ver |= (QLA8044_IDC_VER_MIN_VALUE << (ha->portnum * 2));
1823 qla8044_wr_reg(ha, QLA8044_CRB_IDC_VER_MINOR, idc_ver);
1824
1825 exit_set_idc_ver:
1826 return rval;
1827 }
1828
1829 static int
1830 qla8044_update_idc_reg(struct scsi_qla_host *vha)
1831 {
1832 uint32_t drv_active;
1833 int rval = QLA_SUCCESS;
1834 struct qla_hw_data *ha = vha->hw;
1835
1836 if (vha->flags.init_done)
1837 goto exit_update_idc_reg;
1838
1839 qla8044_idc_lock(ha);
1840 qla8044_set_drv_active(vha);
1841
1842 drv_active = qla8044_rd_direct(vha,
1843 QLA8044_CRB_DRV_ACTIVE_INDEX);
1844
1845 /* If we are the first driver to load and
1846 * ql2xdontresethba is not set, clear IDC_CTRL BIT0. */
1847 if ((drv_active == (1 << ha->portnum)) && !ql2xdontresethba)
1848 qla8044_clear_idc_dontreset(vha);
1849
1850 rval = qla8044_set_idc_ver(vha);
1851 if (rval == QLA_FUNCTION_FAILED)
1852 qla8044_clear_drv_active(ha);
1853 qla8044_idc_unlock(ha);
1854
1855 exit_update_idc_reg:
1856 return rval;
1857 }
1858
1859 /**
1860 * qla8044_need_qsnt_handler - Code to start qsnt
1861 * @vha: pointer to adapter structure
1862 */
1863 static void
1864 qla8044_need_qsnt_handler(struct scsi_qla_host *vha)
1865 {
1866 unsigned long qsnt_timeout;
1867 uint32_t drv_state, drv_active, dev_state;
1868 struct qla_hw_data *ha = vha->hw;
1869
1870 if (vha->flags.online)
1871 qla2x00_quiesce_io(vha);
1872 else
1873 return;
1874
1875 qla8044_set_qsnt_ready(vha);
1876
1877 /* Wait for 30 secs for all functions to ack qsnt mode */
1878 qsnt_timeout = jiffies + (QSNT_ACK_TOV * HZ);
1879 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
1880 drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
1881
1882 /* Shift drv_active by 1 to match drv_state. As quiescent ready bit
1883 position is at bit 1 and drv active is at bit 0 */
1884 drv_active = drv_active << 1;
1885
1886 while (drv_state != drv_active) {
1887 if (time_after_eq(jiffies, qsnt_timeout)) {
1888 /* Other functions did not ack, changing state to
1889 * DEV_READY
1890 */
1891 clear_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1892 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1893 QLA8XXX_DEV_READY);
1894 qla8044_clear_qsnt_ready(vha);
1895 ql_log(ql_log_info, vha, 0xb0cc,
1896 "Timeout waiting for quiescent ack!!!\n");
1897 return;
1898 }
1899 qla8044_idc_unlock(ha);
1900 msleep(1000);
1901 qla8044_idc_lock(ha);
1902
1903 drv_state = qla8044_rd_direct(vha,
1904 QLA8044_CRB_DRV_STATE_INDEX);
1905 drv_active = qla8044_rd_direct(vha,
1906 QLA8044_CRB_DRV_ACTIVE_INDEX);
1907 drv_active = drv_active << 1;
1908 }
1909
1910 /* All functions have Acked. Set quiescent state */
1911 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1912
1913 if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
1914 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
1915 QLA8XXX_DEV_QUIESCENT);
1916 ql_log(ql_log_info, vha, 0xb0cd,
1917 "%s: HW State: QUIESCENT\n", __func__);
1918 }
1919 }
1920
1921 /*
1922 * qla8044_device_state_handler - Adapter state machine
1923 * @ha: pointer to host adapter structure.
1924 *
1925 * Note: IDC lock must be UNLOCKED upon entry
1926 **/
1927 int
1928 qla8044_device_state_handler(struct scsi_qla_host *vha)
1929 {
1930 uint32_t dev_state;
1931 int rval = QLA_SUCCESS;
1932 unsigned long dev_init_timeout;
1933 struct qla_hw_data *ha = vha->hw;
1934
1935 rval = qla8044_update_idc_reg(vha);
1936 if (rval == QLA_FUNCTION_FAILED)
1937 goto exit_error;
1938
1939 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1940 ql_dbg(ql_dbg_p3p, vha, 0xb0ce,
1941 "Device state is 0x%x = %s\n",
1942 dev_state, dev_state < MAX_STATES ?
1943 qdev_state(dev_state) : "Unknown");
1944
1945 /* wait for 30 seconds for device to go ready */
1946 dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
1947
1948 qla8044_idc_lock(ha);
1949
1950 while (1) {
1951 if (time_after_eq(jiffies, dev_init_timeout)) {
1952 if (qla8044_check_drv_active(vha) == QLA_SUCCESS) {
1953 ql_log(ql_log_warn, vha, 0xb0cf,
1954 "%s: Device Init Failed 0x%x = %s\n",
1955 QLA2XXX_DRIVER_NAME, dev_state,
1956 dev_state < MAX_STATES ?
1957 qdev_state(dev_state) : "Unknown");
1958 qla8044_wr_direct(vha,
1959 QLA8044_CRB_DEV_STATE_INDEX,
1960 QLA8XXX_DEV_FAILED);
1961 }
1962 }
1963
1964 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
1965 ql_log(ql_log_info, vha, 0xb0d0,
1966 "Device state is 0x%x = %s\n",
1967 dev_state, dev_state < MAX_STATES ?
1968 qdev_state(dev_state) : "Unknown");
1969
1970 /* NOTE: Make sure idc unlocked upon exit of switch statement */
1971 switch (dev_state) {
1972 case QLA8XXX_DEV_READY:
1973 ha->flags.nic_core_reset_owner = 0;
1974 goto exit;
1975 case QLA8XXX_DEV_COLD:
1976 rval = qla8044_device_bootstrap(vha);
1977 break;
1978 case QLA8XXX_DEV_INITIALIZING:
1979 qla8044_idc_unlock(ha);
1980 msleep(1000);
1981 qla8044_idc_lock(ha);
1982 break;
1983 case QLA8XXX_DEV_NEED_RESET:
1984 /* For ISP8044, if NEED_RESET is set by any driver,
1985 * it should be honored, irrespective of IDC_CTRL
1986 * DONTRESET_BIT0 */
1987 qla8044_need_reset_handler(vha);
1988 break;
1989 case QLA8XXX_DEV_NEED_QUIESCENT:
1990 /* idc locked/unlocked in handler */
1991 qla8044_need_qsnt_handler(vha);
1992
1993 /* Reset the init timeout after qsnt handler */
1994 dev_init_timeout = jiffies +
1995 (ha->fcoe_reset_timeout * HZ);
1996 break;
1997 case QLA8XXX_DEV_QUIESCENT:
1998 ql_log(ql_log_info, vha, 0xb0d1,
1999 "HW State: QUIESCENT\n");
2000
2001 qla8044_idc_unlock(ha);
2002 msleep(1000);
2003 qla8044_idc_lock(ha);
2004
2005 /* Reset the init timeout after qsnt handler */
2006 dev_init_timeout = jiffies +
2007 (ha->fcoe_reset_timeout * HZ);
2008 break;
2009 case QLA8XXX_DEV_FAILED:
2010 ha->flags.nic_core_reset_owner = 0;
2011 qla8044_idc_unlock(ha);
2012 qla8xxx_dev_failed_handler(vha);
2013 rval = QLA_FUNCTION_FAILED;
2014 qla8044_idc_lock(ha);
2015 goto exit;
2016 default:
2017 qla8044_idc_unlock(ha);
2018 qla8xxx_dev_failed_handler(vha);
2019 rval = QLA_FUNCTION_FAILED;
2020 qla8044_idc_lock(ha);
2021 goto exit;
2022 }
2023 }
2024 exit:
2025 qla8044_idc_unlock(ha);
2026
2027 exit_error:
2028 return rval;
2029 }
2030
2031 /**
2032 * qla4_8xxx_check_temp - Check the ISP82XX temperature.
2033 * @vha: adapter block pointer.
2034 *
2035 * Note: The caller should not hold the idc lock.
2036 */
2037 static int
2038 qla8044_check_temp(struct scsi_qla_host *vha)
2039 {
2040 uint32_t temp, temp_state, temp_val;
2041 int status = QLA_SUCCESS;
2042
2043 temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
2044 temp_state = qla82xx_get_temp_state(temp);
2045 temp_val = qla82xx_get_temp_val(temp);
2046
2047 if (temp_state == QLA82XX_TEMP_PANIC) {
2048 ql_log(ql_log_warn, vha, 0xb0d2,
2049 "Device temperature %d degrees C"
2050 " exceeds maximum allowed. Hardware has been shut"
2051 " down\n", temp_val);
2052 status = QLA_FUNCTION_FAILED;
2053 return status;
2054 } else if (temp_state == QLA82XX_TEMP_WARN) {
2055 ql_log(ql_log_warn, vha, 0xb0d3,
2056 "Device temperature %d"
2057 " degrees C exceeds operating range."
2058 " Immediate action needed.\n", temp_val);
2059 }
2060 return 0;
2061 }
2062
2063 int qla8044_read_temperature(scsi_qla_host_t *vha)
2064 {
2065 uint32_t temp;
2066
2067 temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
2068 return qla82xx_get_temp_val(temp);
2069 }
2070
2071 /**
2072 * qla8044_check_fw_alive - Check firmware health
2073 * @vha: Pointer to host adapter structure.
2074 *
2075 * Context: Interrupt
2076 */
2077 int
2078 qla8044_check_fw_alive(struct scsi_qla_host *vha)
2079 {
2080 uint32_t fw_heartbeat_counter;
2081 uint32_t halt_status1, halt_status2;
2082 int status = QLA_SUCCESS;
2083
2084 fw_heartbeat_counter = qla8044_rd_direct(vha,
2085 QLA8044_PEG_ALIVE_COUNTER_INDEX);
2086
2087 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
2088 if (fw_heartbeat_counter == 0xffffffff) {
2089 ql_dbg(ql_dbg_p3p, vha, 0xb0d4,
2090 "scsi%ld: %s: Device in frozen "
2091 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
2092 vha->host_no, __func__);
2093 return status;
2094 }
2095
2096 if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
2097 vha->seconds_since_last_heartbeat++;
2098 /* FW not alive after 2 seconds */
2099 if (vha->seconds_since_last_heartbeat == 2) {
2100 vha->seconds_since_last_heartbeat = 0;
2101 halt_status1 = qla8044_rd_direct(vha,
2102 QLA8044_PEG_HALT_STATUS1_INDEX);
2103 halt_status2 = qla8044_rd_direct(vha,
2104 QLA8044_PEG_HALT_STATUS2_INDEX);
2105
2106 ql_log(ql_log_info, vha, 0xb0d5,
2107 "scsi(%ld): %s, ISP8044 "
2108 "Dumping hw/fw registers:\n"
2109 " PEG_HALT_STATUS1: 0x%x, "
2110 "PEG_HALT_STATUS2: 0x%x,\n",
2111 vha->host_no, __func__, halt_status1,
2112 halt_status2);
2113 status = QLA_FUNCTION_FAILED;
2114 }
2115 } else
2116 vha->seconds_since_last_heartbeat = 0;
2117
2118 vha->fw_heartbeat_counter = fw_heartbeat_counter;
2119 return status;
2120 }
2121
2122 void
2123 qla8044_watchdog(struct scsi_qla_host *vha)
2124 {
2125 uint32_t dev_state, halt_status;
2126 int halt_status_unrecoverable = 0;
2127 struct qla_hw_data *ha = vha->hw;
2128
2129 /* don't poll if reset is going on or FW hang in quiescent state */
2130 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
2131 test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))) {
2132 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
2133
2134 if (qla8044_check_fw_alive(vha)) {
2135 ha->flags.isp82xx_fw_hung = 1;
2136 ql_log(ql_log_warn, vha, 0xb10a,
2137 "Firmware hung.\n");
2138 qla82xx_clear_pending_mbx(vha);
2139 }
2140
2141 if (qla8044_check_temp(vha)) {
2142 set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
2143 ha->flags.isp82xx_fw_hung = 1;
2144 qla2xxx_wake_dpc(vha);
2145 } else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
2146 !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
2147 ql_log(ql_log_info, vha, 0xb0d6,
2148 "%s: HW State: NEED RESET!\n",
2149 __func__);
2150 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2151 qla2xxx_wake_dpc(vha);
2152 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
2153 !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
2154 ql_log(ql_log_info, vha, 0xb0d7,
2155 "%s: HW State: NEED QUIES detected!\n",
2156 __func__);
2157 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
2158 qla2xxx_wake_dpc(vha);
2159 } else {
2160 /* Check firmware health */
2161 if (ha->flags.isp82xx_fw_hung) {
2162 halt_status = qla8044_rd_direct(vha,
2163 QLA8044_PEG_HALT_STATUS1_INDEX);
2164 if (halt_status &
2165 QLA8044_HALT_STATUS_FW_RESET) {
2166 ql_log(ql_log_fatal, vha,
2167 0xb0d8, "%s: Firmware "
2168 "error detected device "
2169 "is being reset\n",
2170 __func__);
2171 } else if (halt_status &
2172 QLA8044_HALT_STATUS_UNRECOVERABLE) {
2173 halt_status_unrecoverable = 1;
2174 }
2175
2176 /* Since we cannot change dev_state in interrupt
2177 * context, set appropriate DPC flag then wakeup
2178 * DPC */
2179 if (halt_status_unrecoverable) {
2180 set_bit(ISP_UNRECOVERABLE,
2181 &vha->dpc_flags);
2182 } else {
2183 if (dev_state ==
2184 QLA8XXX_DEV_QUIESCENT) {
2185 set_bit(FCOE_CTX_RESET_NEEDED,
2186 &vha->dpc_flags);
2187 ql_log(ql_log_info, vha, 0xb0d9,
2188 "%s: FW CONTEXT Reset "
2189 "needed!\n", __func__);
2190 } else {
2191 ql_log(ql_log_info, vha,
2192 0xb0da, "%s: "
2193 "detect abort needed\n",
2194 __func__);
2195 set_bit(ISP_ABORT_NEEDED,
2196 &vha->dpc_flags);
2197 }
2198 }
2199 qla2xxx_wake_dpc(vha);
2200 }
2201 }
2202
2203 }
2204 }
2205
2206 static int
2207 qla8044_minidump_process_control(struct scsi_qla_host *vha,
2208 struct qla8044_minidump_entry_hdr *entry_hdr)
2209 {
2210 struct qla8044_minidump_entry_crb *crb_entry;
2211 uint32_t read_value, opcode, poll_time, addr, index;
2212 uint32_t crb_addr, rval = QLA_SUCCESS;
2213 unsigned long wtime;
2214 struct qla8044_minidump_template_hdr *tmplt_hdr;
2215 int i;
2216 struct qla_hw_data *ha = vha->hw;
2217
2218 ql_dbg(ql_dbg_p3p, vha, 0xb0dd, "Entering fn: %s\n", __func__);
2219 tmplt_hdr = (struct qla8044_minidump_template_hdr *)
2220 ha->md_tmplt_hdr;
2221 crb_entry = (struct qla8044_minidump_entry_crb *)entry_hdr;
2222
2223 crb_addr = crb_entry->addr;
2224 for (i = 0; i < crb_entry->op_count; i++) {
2225 opcode = crb_entry->crb_ctrl.opcode;
2226
2227 if (opcode & QLA82XX_DBG_OPCODE_WR) {
2228 qla8044_wr_reg_indirect(vha, crb_addr,
2229 crb_entry->value_1);
2230 opcode &= ~QLA82XX_DBG_OPCODE_WR;
2231 }
2232
2233 if (opcode & QLA82XX_DBG_OPCODE_RW) {
2234 qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2235 qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2236 opcode &= ~QLA82XX_DBG_OPCODE_RW;
2237 }
2238
2239 if (opcode & QLA82XX_DBG_OPCODE_AND) {
2240 qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2241 read_value &= crb_entry->value_2;
2242 opcode &= ~QLA82XX_DBG_OPCODE_AND;
2243 if (opcode & QLA82XX_DBG_OPCODE_OR) {
2244 read_value |= crb_entry->value_3;
2245 opcode &= ~QLA82XX_DBG_OPCODE_OR;
2246 }
2247 qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2248 }
2249 if (opcode & QLA82XX_DBG_OPCODE_OR) {
2250 qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2251 read_value |= crb_entry->value_3;
2252 qla8044_wr_reg_indirect(vha, crb_addr, read_value);
2253 opcode &= ~QLA82XX_DBG_OPCODE_OR;
2254 }
2255 if (opcode & QLA82XX_DBG_OPCODE_POLL) {
2256 poll_time = crb_entry->crb_strd.poll_timeout;
2257 wtime = jiffies + poll_time;
2258 qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
2259
2260 do {
2261 if ((read_value & crb_entry->value_2) ==
2262 crb_entry->value_1) {
2263 break;
2264 } else if (time_after_eq(jiffies, wtime)) {
2265 /* capturing dump failed */
2266 rval = QLA_FUNCTION_FAILED;
2267 break;
2268 } else {
2269 qla8044_rd_reg_indirect(vha,
2270 crb_addr, &read_value);
2271 }
2272 } while (1);
2273 opcode &= ~QLA82XX_DBG_OPCODE_POLL;
2274 }
2275
2276 if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
2277 if (crb_entry->crb_strd.state_index_a) {
2278 index = crb_entry->crb_strd.state_index_a;
2279 addr = tmplt_hdr->saved_state_array[index];
2280 } else {
2281 addr = crb_addr;
2282 }
2283
2284 qla8044_rd_reg_indirect(vha, addr, &read_value);
2285 index = crb_entry->crb_ctrl.state_index_v;
2286 tmplt_hdr->saved_state_array[index] = read_value;
2287 opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
2288 }
2289
2290 if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
2291 if (crb_entry->crb_strd.state_index_a) {
2292 index = crb_entry->crb_strd.state_index_a;
2293 addr = tmplt_hdr->saved_state_array[index];
2294 } else {
2295 addr = crb_addr;
2296 }
2297
2298 if (crb_entry->crb_ctrl.state_index_v) {
2299 index = crb_entry->crb_ctrl.state_index_v;
2300 read_value =
2301 tmplt_hdr->saved_state_array[index];
2302 } else {
2303 read_value = crb_entry->value_1;
2304 }
2305
2306 qla8044_wr_reg_indirect(vha, addr, read_value);
2307 opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
2308 }
2309
2310 if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
2311 index = crb_entry->crb_ctrl.state_index_v;
2312 read_value = tmplt_hdr->saved_state_array[index];
2313 read_value <<= crb_entry->crb_ctrl.shl;
2314 read_value >>= crb_entry->crb_ctrl.shr;
2315 if (crb_entry->value_2)
2316 read_value &= crb_entry->value_2;
2317 read_value |= crb_entry->value_3;
2318 read_value += crb_entry->value_1;
2319 tmplt_hdr->saved_state_array[index] = read_value;
2320 opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
2321 }
2322 crb_addr += crb_entry->crb_strd.addr_stride;
2323 }
2324 return rval;
2325 }
2326
2327 static void
2328 qla8044_minidump_process_rdcrb(struct scsi_qla_host *vha,
2329 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2330 {
2331 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2332 struct qla8044_minidump_entry_crb *crb_hdr;
2333 uint32_t *data_ptr = *d_ptr;
2334
2335 ql_dbg(ql_dbg_p3p, vha, 0xb0de, "Entering fn: %s\n", __func__);
2336 crb_hdr = (struct qla8044_minidump_entry_crb *)entry_hdr;
2337 r_addr = crb_hdr->addr;
2338 r_stride = crb_hdr->crb_strd.addr_stride;
2339 loop_cnt = crb_hdr->op_count;
2340
2341 for (i = 0; i < loop_cnt; i++) {
2342 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2343 *data_ptr++ = r_addr;
2344 *data_ptr++ = r_value;
2345 r_addr += r_stride;
2346 }
2347 *d_ptr = data_ptr;
2348 }
2349
2350 static int
2351 qla8044_minidump_process_rdmem(struct scsi_qla_host *vha,
2352 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2353 {
2354 uint32_t r_addr, r_value, r_data;
2355 uint32_t i, j, loop_cnt;
2356 struct qla8044_minidump_entry_rdmem *m_hdr;
2357 unsigned long flags;
2358 uint32_t *data_ptr = *d_ptr;
2359 struct qla_hw_data *ha = vha->hw;
2360
2361 ql_dbg(ql_dbg_p3p, vha, 0xb0df, "Entering fn: %s\n", __func__);
2362 m_hdr = (struct qla8044_minidump_entry_rdmem *)entry_hdr;
2363 r_addr = m_hdr->read_addr;
2364 loop_cnt = m_hdr->read_data_size/16;
2365
2366 ql_dbg(ql_dbg_p3p, vha, 0xb0f0,
2367 "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
2368 __func__, r_addr, m_hdr->read_data_size);
2369
2370 if (r_addr & 0xf) {
2371 ql_dbg(ql_dbg_p3p, vha, 0xb0f1,
2372 "[%s]: Read addr 0x%x not 16 bytes aligned\n",
2373 __func__, r_addr);
2374 return QLA_FUNCTION_FAILED;
2375 }
2376
2377 if (m_hdr->read_data_size % 16) {
2378 ql_dbg(ql_dbg_p3p, vha, 0xb0f2,
2379 "[%s]: Read data[0x%x] not multiple of 16 bytes\n",
2380 __func__, m_hdr->read_data_size);
2381 return QLA_FUNCTION_FAILED;
2382 }
2383
2384 ql_dbg(ql_dbg_p3p, vha, 0xb0f3,
2385 "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
2386 __func__, r_addr, m_hdr->read_data_size, loop_cnt);
2387
2388 write_lock_irqsave(&ha->hw_lock, flags);
2389 for (i = 0; i < loop_cnt; i++) {
2390 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_LO, r_addr);
2391 r_value = 0;
2392 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, r_value);
2393 r_value = MIU_TA_CTL_ENABLE;
2394 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
2395 r_value = MIU_TA_CTL_START_ENABLE;
2396 qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
2397
2398 for (j = 0; j < MAX_CTL_CHECK; j++) {
2399 qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
2400 &r_value);
2401 if ((r_value & MIU_TA_CTL_BUSY) == 0)
2402 break;
2403 }
2404
2405 if (j >= MAX_CTL_CHECK) {
2406 write_unlock_irqrestore(&ha->hw_lock, flags);
2407 return QLA_SUCCESS;
2408 }
2409
2410 for (j = 0; j < 4; j++) {
2411 qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_RDDATA[j],
2412 &r_data);
2413 *data_ptr++ = r_data;
2414 }
2415
2416 r_addr += 16;
2417 }
2418 write_unlock_irqrestore(&ha->hw_lock, flags);
2419
2420 ql_dbg(ql_dbg_p3p, vha, 0xb0f4,
2421 "Leaving fn: %s datacount: 0x%x\n",
2422 __func__, (loop_cnt * 16));
2423
2424 *d_ptr = data_ptr;
2425 return QLA_SUCCESS;
2426 }
2427
2428 /* ISP83xx flash read for _RDROM _BOARD */
2429 static uint32_t
2430 qla8044_minidump_process_rdrom(struct scsi_qla_host *vha,
2431 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2432 {
2433 uint32_t fl_addr, u32_count, rval;
2434 struct qla8044_minidump_entry_rdrom *rom_hdr;
2435 uint32_t *data_ptr = *d_ptr;
2436
2437 rom_hdr = (struct qla8044_minidump_entry_rdrom *)entry_hdr;
2438 fl_addr = rom_hdr->read_addr;
2439 u32_count = (rom_hdr->read_data_size)/sizeof(uint32_t);
2440
2441 ql_dbg(ql_dbg_p3p, vha, 0xb0f5, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
2442 __func__, fl_addr, u32_count);
2443
2444 rval = qla8044_lockless_flash_read_u32(vha, fl_addr,
2445 (u8 *)(data_ptr), u32_count);
2446
2447 if (rval != QLA_SUCCESS) {
2448 ql_log(ql_log_fatal, vha, 0xb0f6,
2449 "%s: Flash Read Error,Count=%d\n", __func__, u32_count);
2450 return QLA_FUNCTION_FAILED;
2451 } else {
2452 data_ptr += u32_count;
2453 *d_ptr = data_ptr;
2454 return QLA_SUCCESS;
2455 }
2456 }
2457
2458 static void
2459 qla8044_mark_entry_skipped(struct scsi_qla_host *vha,
2460 struct qla8044_minidump_entry_hdr *entry_hdr, int index)
2461 {
2462 entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
2463
2464 ql_log(ql_log_info, vha, 0xb0f7,
2465 "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
2466 vha->host_no, index, entry_hdr->entry_type,
2467 entry_hdr->d_ctrl.entry_capture_mask);
2468 }
2469
2470 static int
2471 qla8044_minidump_process_l2tag(struct scsi_qla_host *vha,
2472 struct qla8044_minidump_entry_hdr *entry_hdr,
2473 uint32_t **d_ptr)
2474 {
2475 uint32_t addr, r_addr, c_addr, t_r_addr;
2476 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2477 unsigned long p_wait, w_time, p_mask;
2478 uint32_t c_value_w, c_value_r;
2479 struct qla8044_minidump_entry_cache *cache_hdr;
2480 int rval = QLA_FUNCTION_FAILED;
2481 uint32_t *data_ptr = *d_ptr;
2482
2483 ql_dbg(ql_dbg_p3p, vha, 0xb0f8, "Entering fn: %s\n", __func__);
2484 cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
2485
2486 loop_count = cache_hdr->op_count;
2487 r_addr = cache_hdr->read_addr;
2488 c_addr = cache_hdr->control_addr;
2489 c_value_w = cache_hdr->cache_ctrl.write_value;
2490
2491 t_r_addr = cache_hdr->tag_reg_addr;
2492 t_value = cache_hdr->addr_ctrl.init_tag_value;
2493 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2494 p_wait = cache_hdr->cache_ctrl.poll_wait;
2495 p_mask = cache_hdr->cache_ctrl.poll_mask;
2496
2497 for (i = 0; i < loop_count; i++) {
2498 qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
2499 if (c_value_w)
2500 qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
2501
2502 if (p_mask) {
2503 w_time = jiffies + p_wait;
2504 do {
2505 qla8044_rd_reg_indirect(vha, c_addr,
2506 &c_value_r);
2507 if ((c_value_r & p_mask) == 0) {
2508 break;
2509 } else if (time_after_eq(jiffies, w_time)) {
2510 /* capturing dump failed */
2511 return rval;
2512 }
2513 } while (1);
2514 }
2515
2516 addr = r_addr;
2517 for (k = 0; k < r_cnt; k++) {
2518 qla8044_rd_reg_indirect(vha, addr, &r_value);
2519 *data_ptr++ = r_value;
2520 addr += cache_hdr->read_ctrl.read_addr_stride;
2521 }
2522 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2523 }
2524 *d_ptr = data_ptr;
2525 return QLA_SUCCESS;
2526 }
2527
2528 static void
2529 qla8044_minidump_process_l1cache(struct scsi_qla_host *vha,
2530 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2531 {
2532 uint32_t addr, r_addr, c_addr, t_r_addr;
2533 uint32_t i, k, loop_count, t_value, r_cnt, r_value;
2534 uint32_t c_value_w;
2535 struct qla8044_minidump_entry_cache *cache_hdr;
2536 uint32_t *data_ptr = *d_ptr;
2537
2538 cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
2539 loop_count = cache_hdr->op_count;
2540 r_addr = cache_hdr->read_addr;
2541 c_addr = cache_hdr->control_addr;
2542 c_value_w = cache_hdr->cache_ctrl.write_value;
2543
2544 t_r_addr = cache_hdr->tag_reg_addr;
2545 t_value = cache_hdr->addr_ctrl.init_tag_value;
2546 r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
2547
2548 for (i = 0; i < loop_count; i++) {
2549 qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
2550 qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
2551 addr = r_addr;
2552 for (k = 0; k < r_cnt; k++) {
2553 qla8044_rd_reg_indirect(vha, addr, &r_value);
2554 *data_ptr++ = r_value;
2555 addr += cache_hdr->read_ctrl.read_addr_stride;
2556 }
2557 t_value += cache_hdr->addr_ctrl.tag_value_stride;
2558 }
2559 *d_ptr = data_ptr;
2560 }
2561
2562 static void
2563 qla8044_minidump_process_rdocm(struct scsi_qla_host *vha,
2564 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2565 {
2566 uint32_t r_addr, r_stride, loop_cnt, i, r_value;
2567 struct qla8044_minidump_entry_rdocm *ocm_hdr;
2568 uint32_t *data_ptr = *d_ptr;
2569 struct qla_hw_data *ha = vha->hw;
2570
2571 ql_dbg(ql_dbg_p3p, vha, 0xb0f9, "Entering fn: %s\n", __func__);
2572
2573 ocm_hdr = (struct qla8044_minidump_entry_rdocm *)entry_hdr;
2574 r_addr = ocm_hdr->read_addr;
2575 r_stride = ocm_hdr->read_addr_stride;
2576 loop_cnt = ocm_hdr->op_count;
2577
2578 ql_dbg(ql_dbg_p3p, vha, 0xb0fa,
2579 "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
2580 __func__, r_addr, r_stride, loop_cnt);
2581
2582 for (i = 0; i < loop_cnt; i++) {
2583 r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
2584 *data_ptr++ = r_value;
2585 r_addr += r_stride;
2586 }
2587 ql_dbg(ql_dbg_p3p, vha, 0xb0fb, "Leaving fn: %s datacount: 0x%lx\n",
2588 __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t)));
2589
2590 *d_ptr = data_ptr;
2591 }
2592
2593 static void
2594 qla8044_minidump_process_rdmux(struct scsi_qla_host *vha,
2595 struct qla8044_minidump_entry_hdr *entry_hdr,
2596 uint32_t **d_ptr)
2597 {
2598 uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
2599 struct qla8044_minidump_entry_mux *mux_hdr;
2600 uint32_t *data_ptr = *d_ptr;
2601
2602 ql_dbg(ql_dbg_p3p, vha, 0xb0fc, "Entering fn: %s\n", __func__);
2603
2604 mux_hdr = (struct qla8044_minidump_entry_mux *)entry_hdr;
2605 r_addr = mux_hdr->read_addr;
2606 s_addr = mux_hdr->select_addr;
2607 s_stride = mux_hdr->select_value_stride;
2608 s_value = mux_hdr->select_value;
2609 loop_cnt = mux_hdr->op_count;
2610
2611 for (i = 0; i < loop_cnt; i++) {
2612 qla8044_wr_reg_indirect(vha, s_addr, s_value);
2613 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2614 *data_ptr++ = s_value;
2615 *data_ptr++ = r_value;
2616 s_value += s_stride;
2617 }
2618 *d_ptr = data_ptr;
2619 }
2620
2621 static void
2622 qla8044_minidump_process_queue(struct scsi_qla_host *vha,
2623 struct qla8044_minidump_entry_hdr *entry_hdr,
2624 uint32_t **d_ptr)
2625 {
2626 uint32_t s_addr, r_addr;
2627 uint32_t r_stride, r_value, r_cnt, qid = 0;
2628 uint32_t i, k, loop_cnt;
2629 struct qla8044_minidump_entry_queue *q_hdr;
2630 uint32_t *data_ptr = *d_ptr;
2631
2632 ql_dbg(ql_dbg_p3p, vha, 0xb0fd, "Entering fn: %s\n", __func__);
2633 q_hdr = (struct qla8044_minidump_entry_queue *)entry_hdr;
2634 s_addr = q_hdr->select_addr;
2635 r_cnt = q_hdr->rd_strd.read_addr_cnt;
2636 r_stride = q_hdr->rd_strd.read_addr_stride;
2637 loop_cnt = q_hdr->op_count;
2638
2639 for (i = 0; i < loop_cnt; i++) {
2640 qla8044_wr_reg_indirect(vha, s_addr, qid);
2641 r_addr = q_hdr->read_addr;
2642 for (k = 0; k < r_cnt; k++) {
2643 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2644 *data_ptr++ = r_value;
2645 r_addr += r_stride;
2646 }
2647 qid += q_hdr->q_strd.queue_id_stride;
2648 }
2649 *d_ptr = data_ptr;
2650 }
2651
2652 /* ISP83xx functions to process new minidump entries... */
2653 static uint32_t
2654 qla8044_minidump_process_pollrd(struct scsi_qla_host *vha,
2655 struct qla8044_minidump_entry_hdr *entry_hdr,
2656 uint32_t **d_ptr)
2657 {
2658 uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
2659 uint16_t s_stride, i;
2660 struct qla8044_minidump_entry_pollrd *pollrd_hdr;
2661 uint32_t *data_ptr = *d_ptr;
2662
2663 pollrd_hdr = (struct qla8044_minidump_entry_pollrd *) entry_hdr;
2664 s_addr = pollrd_hdr->select_addr;
2665 r_addr = pollrd_hdr->read_addr;
2666 s_value = pollrd_hdr->select_value;
2667 s_stride = pollrd_hdr->select_value_stride;
2668
2669 poll_wait = pollrd_hdr->poll_wait;
2670 poll_mask = pollrd_hdr->poll_mask;
2671
2672 for (i = 0; i < pollrd_hdr->op_count; i++) {
2673 qla8044_wr_reg_indirect(vha, s_addr, s_value);
2674 poll_wait = pollrd_hdr->poll_wait;
2675 while (1) {
2676 qla8044_rd_reg_indirect(vha, s_addr, &r_value);
2677 if ((r_value & poll_mask) != 0) {
2678 break;
2679 } else {
2680 usleep_range(1000, 1100);
2681 if (--poll_wait == 0) {
2682 ql_log(ql_log_fatal, vha, 0xb0fe,
2683 "%s: TIMEOUT\n", __func__);
2684 goto error;
2685 }
2686 }
2687 }
2688 qla8044_rd_reg_indirect(vha, r_addr, &r_value);
2689 *data_ptr++ = s_value;
2690 *data_ptr++ = r_value;
2691
2692 s_value += s_stride;
2693 }
2694 *d_ptr = data_ptr;
2695 return QLA_SUCCESS;
2696
2697 error:
2698 return QLA_FUNCTION_FAILED;
2699 }
2700
2701 static void
2702 qla8044_minidump_process_rdmux2(struct scsi_qla_host *vha,
2703 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2704 {
2705 uint32_t sel_val1, sel_val2, t_sel_val, data, i;
2706 uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
2707 struct qla8044_minidump_entry_rdmux2 *rdmux2_hdr;
2708 uint32_t *data_ptr = *d_ptr;
2709
2710 rdmux2_hdr = (struct qla8044_minidump_entry_rdmux2 *) entry_hdr;
2711 sel_val1 = rdmux2_hdr->select_value_1;
2712 sel_val2 = rdmux2_hdr->select_value_2;
2713 sel_addr1 = rdmux2_hdr->select_addr_1;
2714 sel_addr2 = rdmux2_hdr->select_addr_2;
2715 sel_val_mask = rdmux2_hdr->select_value_mask;
2716 read_addr = rdmux2_hdr->read_addr;
2717
2718 for (i = 0; i < rdmux2_hdr->op_count; i++) {
2719 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val1);
2720 t_sel_val = sel_val1 & sel_val_mask;
2721 *data_ptr++ = t_sel_val;
2722
2723 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
2724 qla8044_rd_reg_indirect(vha, read_addr, &data);
2725
2726 *data_ptr++ = data;
2727
2728 qla8044_wr_reg_indirect(vha, sel_addr1, sel_val2);
2729 t_sel_val = sel_val2 & sel_val_mask;
2730 *data_ptr++ = t_sel_val;
2731
2732 qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
2733 qla8044_rd_reg_indirect(vha, read_addr, &data);
2734
2735 *data_ptr++ = data;
2736
2737 sel_val1 += rdmux2_hdr->select_value_stride;
2738 sel_val2 += rdmux2_hdr->select_value_stride;
2739 }
2740
2741 *d_ptr = data_ptr;
2742 }
2743
2744 static uint32_t
2745 qla8044_minidump_process_pollrdmwr(struct scsi_qla_host *vha,
2746 struct qla8044_minidump_entry_hdr *entry_hdr,
2747 uint32_t **d_ptr)
2748 {
2749 uint32_t poll_wait, poll_mask, r_value, data;
2750 uint32_t addr_1, addr_2, value_1, value_2;
2751 struct qla8044_minidump_entry_pollrdmwr *poll_hdr;
2752 uint32_t *data_ptr = *d_ptr;
2753
2754 poll_hdr = (struct qla8044_minidump_entry_pollrdmwr *) entry_hdr;
2755 addr_1 = poll_hdr->addr_1;
2756 addr_2 = poll_hdr->addr_2;
2757 value_1 = poll_hdr->value_1;
2758 value_2 = poll_hdr->value_2;
2759 poll_mask = poll_hdr->poll_mask;
2760
2761 qla8044_wr_reg_indirect(vha, addr_1, value_1);
2762
2763 poll_wait = poll_hdr->poll_wait;
2764 while (1) {
2765 qla8044_rd_reg_indirect(vha, addr_1, &r_value);
2766
2767 if ((r_value & poll_mask) != 0) {
2768 break;
2769 } else {
2770 usleep_range(1000, 1100);
2771 if (--poll_wait == 0) {
2772 ql_log(ql_log_fatal, vha, 0xb0ff,
2773 "%s: TIMEOUT\n", __func__);
2774 goto error;
2775 }
2776 }
2777 }
2778
2779 qla8044_rd_reg_indirect(vha, addr_2, &data);
2780 data &= poll_hdr->modify_mask;
2781 qla8044_wr_reg_indirect(vha, addr_2, data);
2782 qla8044_wr_reg_indirect(vha, addr_1, value_2);
2783
2784 poll_wait = poll_hdr->poll_wait;
2785 while (1) {
2786 qla8044_rd_reg_indirect(vha, addr_1, &r_value);
2787
2788 if ((r_value & poll_mask) != 0) {
2789 break;
2790 } else {
2791 usleep_range(1000, 1100);
2792 if (--poll_wait == 0) {
2793 ql_log(ql_log_fatal, vha, 0xb100,
2794 "%s: TIMEOUT2\n", __func__);
2795 goto error;
2796 }
2797 }
2798 }
2799
2800 *data_ptr++ = addr_2;
2801 *data_ptr++ = data;
2802
2803 *d_ptr = data_ptr;
2804
2805 return QLA_SUCCESS;
2806
2807 error:
2808 return QLA_FUNCTION_FAILED;
2809 }
2810
2811 #define ISP8044_PEX_DMA_ENGINE_INDEX 8
2812 #define ISP8044_PEX_DMA_BASE_ADDRESS 0x77320000
2813 #define ISP8044_PEX_DMA_NUM_OFFSET 0x10000
2814 #define ISP8044_PEX_DMA_CMD_ADDR_LOW 0x0
2815 #define ISP8044_PEX_DMA_CMD_ADDR_HIGH 0x04
2816 #define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL 0x08
2817
2818 #define ISP8044_PEX_DMA_READ_SIZE (16 * 1024)
2819 #define ISP8044_PEX_DMA_MAX_WAIT (100 * 100) /* Max wait of 100 msecs */
2820
2821 static int
2822 qla8044_check_dma_engine_state(struct scsi_qla_host *vha)
2823 {
2824 struct qla_hw_data *ha = vha->hw;
2825 int rval = QLA_SUCCESS;
2826 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
2827 uint64_t dma_base_addr = 0;
2828 struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
2829
2830 tmplt_hdr = ha->md_tmplt_hdr;
2831 dma_eng_num =
2832 tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
2833 dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
2834 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
2835
2836 /* Read the pex-dma's command-status-and-control register. */
2837 rval = qla8044_rd_reg_indirect(vha,
2838 (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
2839 &cmd_sts_and_cntrl);
2840 if (rval)
2841 return QLA_FUNCTION_FAILED;
2842
2843 /* Check if requested pex-dma engine is available. */
2844 if (cmd_sts_and_cntrl & BIT_31)
2845 return QLA_SUCCESS;
2846
2847 return QLA_FUNCTION_FAILED;
2848 }
2849
2850 static int
2851 qla8044_start_pex_dma(struct scsi_qla_host *vha,
2852 struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr)
2853 {
2854 struct qla_hw_data *ha = vha->hw;
2855 int rval = QLA_SUCCESS, wait = 0;
2856 uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
2857 uint64_t dma_base_addr = 0;
2858 struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
2859
2860 tmplt_hdr = ha->md_tmplt_hdr;
2861 dma_eng_num =
2862 tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
2863 dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
2864 (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
2865
2866 rval = qla8044_wr_reg_indirect(vha,
2867 dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_LOW,
2868 m_hdr->desc_card_addr);
2869 if (rval)
2870 goto error_exit;
2871
2872 rval = qla8044_wr_reg_indirect(vha,
2873 dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_HIGH, 0);
2874 if (rval)
2875 goto error_exit;
2876
2877 rval = qla8044_wr_reg_indirect(vha,
2878 dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL,
2879 m_hdr->start_dma_cmd);
2880 if (rval)
2881 goto error_exit;
2882
2883 /* Wait for dma operation to complete. */
2884 for (wait = 0; wait < ISP8044_PEX_DMA_MAX_WAIT; wait++) {
2885 rval = qla8044_rd_reg_indirect(vha,
2886 (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
2887 &cmd_sts_and_cntrl);
2888 if (rval)
2889 goto error_exit;
2890
2891 if ((cmd_sts_and_cntrl & BIT_1) == 0)
2892 break;
2893
2894 udelay(10);
2895 }
2896
2897 /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
2898 if (wait >= ISP8044_PEX_DMA_MAX_WAIT) {
2899 rval = QLA_FUNCTION_FAILED;
2900 goto error_exit;
2901 }
2902
2903 error_exit:
2904 return rval;
2905 }
2906
2907 static int
2908 qla8044_minidump_pex_dma_read(struct scsi_qla_host *vha,
2909 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
2910 {
2911 struct qla_hw_data *ha = vha->hw;
2912 int rval = QLA_SUCCESS;
2913 struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
2914 uint32_t chunk_size, read_size;
2915 uint8_t *data_ptr = (uint8_t *)*d_ptr;
2916 void *rdmem_buffer = NULL;
2917 dma_addr_t rdmem_dma;
2918 struct qla8044_pex_dma_descriptor dma_desc;
2919
2920 rval = qla8044_check_dma_engine_state(vha);
2921 if (rval != QLA_SUCCESS) {
2922 ql_dbg(ql_dbg_p3p, vha, 0xb147,
2923 "DMA engine not available. Fallback to rdmem-read.\n");
2924 return QLA_FUNCTION_FAILED;
2925 }
2926
2927 m_hdr = (void *)entry_hdr;
2928
2929 rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
2930 ISP8044_PEX_DMA_READ_SIZE, &rdmem_dma, GFP_KERNEL);
2931 if (!rdmem_buffer) {
2932 ql_dbg(ql_dbg_p3p, vha, 0xb148,
2933 "Unable to allocate rdmem dma buffer\n");
2934 return QLA_FUNCTION_FAILED;
2935 }
2936
2937 /* Prepare pex-dma descriptor to be written to MS memory. */
2938 /* dma-desc-cmd layout:
2939 * 0-3: dma-desc-cmd 0-3
2940 * 4-7: pcid function number
2941 * 8-15: dma-desc-cmd 8-15
2942 * dma_bus_addr: dma buffer address
2943 * cmd.read_data_size: amount of data-chunk to be read.
2944 */
2945 dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
2946 dma_desc.cmd.dma_desc_cmd |=
2947 ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
2948
2949 dma_desc.dma_bus_addr = rdmem_dma;
2950 dma_desc.cmd.read_data_size = chunk_size = ISP8044_PEX_DMA_READ_SIZE;
2951 read_size = 0;
2952
2953 /*
2954 * Perform rdmem operation using pex-dma.
2955 * Prepare dma in chunks of ISP8044_PEX_DMA_READ_SIZE.
2956 */
2957 while (read_size < m_hdr->read_data_size) {
2958 if (m_hdr->read_data_size - read_size <
2959 ISP8044_PEX_DMA_READ_SIZE) {
2960 chunk_size = (m_hdr->read_data_size - read_size);
2961 dma_desc.cmd.read_data_size = chunk_size;
2962 }
2963
2964 dma_desc.src_addr = m_hdr->read_addr + read_size;
2965
2966 /* Prepare: Write pex-dma descriptor to MS memory. */
2967 rval = qla8044_ms_mem_write_128b(vha,
2968 m_hdr->desc_card_addr, (void *)&dma_desc,
2969 (sizeof(struct qla8044_pex_dma_descriptor)/16));
2970 if (rval) {
2971 ql_log(ql_log_warn, vha, 0xb14a,
2972 "%s: Error writing rdmem-dma-init to MS !!!\n",
2973 __func__);
2974 goto error_exit;
2975 }
2976 ql_dbg(ql_dbg_p3p, vha, 0xb14b,
2977 "%s: Dma-descriptor: Instruct for rdmem dma "
2978 "(chunk_size 0x%x).\n", __func__, chunk_size);
2979
2980 /* Execute: Start pex-dma operation. */
2981 rval = qla8044_start_pex_dma(vha, m_hdr);
2982 if (rval)
2983 goto error_exit;
2984
2985 memcpy(data_ptr, rdmem_buffer, chunk_size);
2986 data_ptr += chunk_size;
2987 read_size += chunk_size;
2988 }
2989
2990 *d_ptr = (void *)data_ptr;
2991
2992 error_exit:
2993 if (rdmem_buffer)
2994 dma_free_coherent(&ha->pdev->dev, ISP8044_PEX_DMA_READ_SIZE,
2995 rdmem_buffer, rdmem_dma);
2996
2997 return rval;
2998 }
2999
3000 static uint32_t
3001 qla8044_minidump_process_rddfe(struct scsi_qla_host *vha,
3002 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3003 {
3004 int loop_cnt;
3005 uint32_t addr1, addr2, value, data, temp, wrVal;
3006 uint8_t stride, stride2;
3007 uint16_t count;
3008 uint32_t poll, mask, modify_mask;
3009 uint32_t wait_count = 0;
3010
3011 uint32_t *data_ptr = *d_ptr;
3012
3013 struct qla8044_minidump_entry_rddfe *rddfe;
3014 rddfe = (struct qla8044_minidump_entry_rddfe *) entry_hdr;
3015
3016 addr1 = rddfe->addr_1;
3017 value = rddfe->value;
3018 stride = rddfe->stride;
3019 stride2 = rddfe->stride2;
3020 count = rddfe->count;
3021
3022 poll = rddfe->poll;
3023 mask = rddfe->mask;
3024 modify_mask = rddfe->modify_mask;
3025
3026 addr2 = addr1 + stride;
3027
3028 for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
3029 qla8044_wr_reg_indirect(vha, addr1, (0x40000000 | value));
3030
3031 wait_count = 0;
3032 while (wait_count < poll) {
3033 qla8044_rd_reg_indirect(vha, addr1, &temp);
3034 if ((temp & mask) != 0)
3035 break;
3036 wait_count++;
3037 }
3038
3039 if (wait_count == poll) {
3040 ql_log(ql_log_warn, vha, 0xb153,
3041 "%s: TIMEOUT\n", __func__);
3042 goto error;
3043 } else {
3044 qla8044_rd_reg_indirect(vha, addr2, &temp);
3045 temp = temp & modify_mask;
3046 temp = (temp | ((loop_cnt << 16) | loop_cnt));
3047 wrVal = ((temp << 16) | temp);
3048
3049 qla8044_wr_reg_indirect(vha, addr2, wrVal);
3050 qla8044_wr_reg_indirect(vha, addr1, value);
3051
3052 wait_count = 0;
3053 while (wait_count < poll) {
3054 qla8044_rd_reg_indirect(vha, addr1, &temp);
3055 if ((temp & mask) != 0)
3056 break;
3057 wait_count++;
3058 }
3059 if (wait_count == poll) {
3060 ql_log(ql_log_warn, vha, 0xb154,
3061 "%s: TIMEOUT\n", __func__);
3062 goto error;
3063 }
3064
3065 qla8044_wr_reg_indirect(vha, addr1,
3066 ((0x40000000 | value) + stride2));
3067 wait_count = 0;
3068 while (wait_count < poll) {
3069 qla8044_rd_reg_indirect(vha, addr1, &temp);
3070 if ((temp & mask) != 0)
3071 break;
3072 wait_count++;
3073 }
3074
3075 if (wait_count == poll) {
3076 ql_log(ql_log_warn, vha, 0xb155,
3077 "%s: TIMEOUT\n", __func__);
3078 goto error;
3079 }
3080
3081 qla8044_rd_reg_indirect(vha, addr2, &data);
3082
3083 *data_ptr++ = wrVal;
3084 *data_ptr++ = data;
3085 }
3086
3087 }
3088
3089 *d_ptr = data_ptr;
3090 return QLA_SUCCESS;
3091
3092 error:
3093 return -1;
3094
3095 }
3096
3097 static uint32_t
3098 qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha,
3099 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3100 {
3101 int ret = 0;
3102 uint32_t addr1, addr2, value1, value2, data, selVal;
3103 uint8_t stride1, stride2;
3104 uint32_t addr3, addr4, addr5, addr6, addr7;
3105 uint16_t count, loop_cnt;
3106 uint32_t mask;
3107 uint32_t *data_ptr = *d_ptr;
3108
3109 struct qla8044_minidump_entry_rdmdio *rdmdio;
3110
3111 rdmdio = (struct qla8044_minidump_entry_rdmdio *) entry_hdr;
3112
3113 addr1 = rdmdio->addr_1;
3114 addr2 = rdmdio->addr_2;
3115 value1 = rdmdio->value_1;
3116 stride1 = rdmdio->stride_1;
3117 stride2 = rdmdio->stride_2;
3118 count = rdmdio->count;
3119
3120 mask = rdmdio->mask;
3121 value2 = rdmdio->value_2;
3122
3123 addr3 = addr1 + stride1;
3124
3125 for (loop_cnt = 0; loop_cnt < count; loop_cnt++) {
3126 ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2,
3127 addr3, mask);
3128 if (ret == -1)
3129 goto error;
3130
3131 addr4 = addr2 - stride1;
3132 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr4,
3133 value2);
3134 if (ret == -1)
3135 goto error;
3136
3137 addr5 = addr2 - (2 * stride1);
3138 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr5,
3139 value1);
3140 if (ret == -1)
3141 goto error;
3142
3143 addr6 = addr2 - (3 * stride1);
3144 ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask,
3145 addr6, 0x2);
3146 if (ret == -1)
3147 goto error;
3148
3149 ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2,
3150 addr3, mask);
3151 if (ret == -1)
3152 goto error;
3153
3154 addr7 = addr2 - (4 * stride1);
3155 data = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr7);
3156 if (data == -1)
3157 goto error;
3158
3159 selVal = (value2 << 18) | (value1 << 2) | 2;
3160
3161 stride2 = rdmdio->stride_2;
3162 *data_ptr++ = selVal;
3163 *data_ptr++ = data;
3164
3165 value1 = value1 + stride2;
3166 *d_ptr = data_ptr;
3167 }
3168
3169 return 0;
3170
3171 error:
3172 return -1;
3173 }
3174
3175 static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha,
3176 struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
3177 {
3178 uint32_t addr1, addr2, value1, value2, poll, r_value;
3179 uint32_t wait_count = 0;
3180 struct qla8044_minidump_entry_pollwr *pollwr_hdr;
3181
3182 pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr;
3183 addr1 = pollwr_hdr->addr_1;
3184 addr2 = pollwr_hdr->addr_2;
3185 value1 = pollwr_hdr->value_1;
3186 value2 = pollwr_hdr->value_2;
3187
3188 poll = pollwr_hdr->poll;
3189
3190 while (wait_count < poll) {
3191 qla8044_rd_reg_indirect(vha, addr1, &r_value);
3192
3193 if ((r_value & poll) != 0)
3194 break;
3195 wait_count++;
3196 }
3197
3198 if (wait_count == poll) {
3199 ql_log(ql_log_warn, vha, 0xb156, "%s: TIMEOUT\n", __func__);
3200 goto error;
3201 }
3202
3203 qla8044_wr_reg_indirect(vha, addr2, value2);
3204 qla8044_wr_reg_indirect(vha, addr1, value1);
3205
3206 wait_count = 0;
3207 while (wait_count < poll) {
3208 qla8044_rd_reg_indirect(vha, addr1, &r_value);
3209
3210 if ((r_value & poll) != 0)
3211 break;
3212 wait_count++;
3213 }
3214
3215 return QLA_SUCCESS;
3216
3217 error:
3218 return -1;
3219 }
3220
3221 /*
3222 *
3223 * qla8044_collect_md_data - Retrieve firmware minidump data.
3224 * @ha: pointer to adapter structure
3225 **/
3226 int
3227 qla8044_collect_md_data(struct scsi_qla_host *vha)
3228 {
3229 int num_entry_hdr = 0;
3230 struct qla8044_minidump_entry_hdr *entry_hdr;
3231 struct qla8044_minidump_template_hdr *tmplt_hdr;
3232 uint32_t *data_ptr;
3233 uint32_t data_collected = 0, f_capture_mask;
3234 int i, rval = QLA_FUNCTION_FAILED;
3235 uint64_t now;
3236 uint32_t timestamp, idc_control;
3237 struct qla_hw_data *ha = vha->hw;
3238
3239 if (!ha->md_dump) {
3240 ql_log(ql_log_info, vha, 0xb101,
3241 "%s(%ld) No buffer to dump\n",
3242 __func__, vha->host_no);
3243 return rval;
3244 }
3245
3246 if (ha->fw_dumped) {
3247 ql_log(ql_log_warn, vha, 0xb10d,
3248 "Firmware has been previously dumped (%p) "
3249 "-- ignoring request.\n", ha->fw_dump);
3250 goto md_failed;
3251 }
3252
3253 ha->fw_dumped = 0;
3254
3255 if (!ha->md_tmplt_hdr || !ha->md_dump) {
3256 ql_log(ql_log_warn, vha, 0xb10e,
3257 "Memory not allocated for minidump capture\n");
3258 goto md_failed;
3259 }
3260
3261 qla8044_idc_lock(ha);
3262 idc_control = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
3263 if (idc_control & GRACEFUL_RESET_BIT1) {
3264 ql_log(ql_log_warn, vha, 0xb112,
3265 "Forced reset from application, "
3266 "ignore minidump capture\n");
3267 qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
3268 (idc_control & ~GRACEFUL_RESET_BIT1));
3269 qla8044_idc_unlock(ha);
3270
3271 goto md_failed;
3272 }
3273 qla8044_idc_unlock(ha);
3274
3275 if (qla82xx_validate_template_chksum(vha)) {
3276 ql_log(ql_log_info, vha, 0xb109,
3277 "Template checksum validation error\n");
3278 goto md_failed;
3279 }
3280
3281 tmplt_hdr = (struct qla8044_minidump_template_hdr *)
3282 ha->md_tmplt_hdr;
3283 data_ptr = (uint32_t *)((uint8_t *)ha->md_dump);
3284 num_entry_hdr = tmplt_hdr->num_of_entries;
3285
3286 ql_dbg(ql_dbg_p3p, vha, 0xb11a,
3287 "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level);
3288
3289 f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF;
3290
3291 /* Validate whether required debug level is set */
3292 if ((f_capture_mask & 0x3) != 0x3) {
3293 ql_log(ql_log_warn, vha, 0xb10f,
3294 "Minimum required capture mask[0x%x] level not set\n",
3295 f_capture_mask);
3296
3297 }
3298 tmplt_hdr->driver_capture_mask = ql2xmdcapmask;
3299 ql_log(ql_log_info, vha, 0xb102,
3300 "[%s]: starting data ptr: %p\n",
3301 __func__, data_ptr);
3302 ql_log(ql_log_info, vha, 0xb10b,
3303 "[%s]: no of entry headers in Template: 0x%x\n",
3304 __func__, num_entry_hdr);
3305 ql_log(ql_log_info, vha, 0xb10c,
3306 "[%s]: Total_data_size 0x%x, %d obtained\n",
3307 __func__, ha->md_dump_size, ha->md_dump_size);
3308
3309 /* Update current timestamp before taking dump */
3310 now = get_jiffies_64();
3311 timestamp = (u32)(jiffies_to_msecs(now) / 1000);
3312 tmplt_hdr->driver_timestamp = timestamp;
3313
3314 entry_hdr = (struct qla8044_minidump_entry_hdr *)
3315 (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset);
3316 tmplt_hdr->saved_state_array[QLA8044_SS_OCM_WNDREG_INDEX] =
3317 tmplt_hdr->ocm_window_reg[ha->portnum];
3318
3319 /* Walk through the entry headers - validate/perform required action */
3320 for (i = 0; i < num_entry_hdr; i++) {
3321 if (data_collected > ha->md_dump_size) {
3322 ql_log(ql_log_info, vha, 0xb103,
3323 "Data collected: [0x%x], "
3324 "Total Dump size: [0x%x]\n",
3325 data_collected, ha->md_dump_size);
3326 return rval;
3327 }
3328
3329 if (!(entry_hdr->d_ctrl.entry_capture_mask &
3330 ql2xmdcapmask)) {
3331 entry_hdr->d_ctrl.driver_flags |=
3332 QLA82XX_DBG_SKIPPED_FLAG;
3333 goto skip_nxt_entry;
3334 }
3335
3336 ql_dbg(ql_dbg_p3p, vha, 0xb104,
3337 "Data collected: [0x%x], Dump size left:[0x%x]\n",
3338 data_collected,
3339 (ha->md_dump_size - data_collected));
3340
3341 /* Decode the entry type and take required action to capture
3342 * debug data
3343 */
3344 switch (entry_hdr->entry_type) {
3345 case QLA82XX_RDEND:
3346 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3347 break;
3348 case QLA82XX_CNTRL:
3349 rval = qla8044_minidump_process_control(vha,
3350 entry_hdr);
3351 if (rval != QLA_SUCCESS) {
3352 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3353 goto md_failed;
3354 }
3355 break;
3356 case QLA82XX_RDCRB:
3357 qla8044_minidump_process_rdcrb(vha,
3358 entry_hdr, &data_ptr);
3359 break;
3360 case QLA82XX_RDMEM:
3361 rval = qla8044_minidump_pex_dma_read(vha,
3362 entry_hdr, &data_ptr);
3363 if (rval != QLA_SUCCESS) {
3364 rval = qla8044_minidump_process_rdmem(vha,
3365 entry_hdr, &data_ptr);
3366 if (rval != QLA_SUCCESS) {
3367 qla8044_mark_entry_skipped(vha,
3368 entry_hdr, i);
3369 goto md_failed;
3370 }
3371 }
3372 break;
3373 case QLA82XX_BOARD:
3374 case QLA82XX_RDROM:
3375 rval = qla8044_minidump_process_rdrom(vha,
3376 entry_hdr, &data_ptr);
3377 if (rval != QLA_SUCCESS) {
3378 qla8044_mark_entry_skipped(vha,
3379 entry_hdr, i);
3380 }
3381 break;
3382 case QLA82XX_L2DTG:
3383 case QLA82XX_L2ITG:
3384 case QLA82XX_L2DAT:
3385 case QLA82XX_L2INS:
3386 rval = qla8044_minidump_process_l2tag(vha,
3387 entry_hdr, &data_ptr);
3388 if (rval != QLA_SUCCESS) {
3389 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3390 goto md_failed;
3391 }
3392 break;
3393 case QLA8044_L1DTG:
3394 case QLA8044_L1ITG:
3395 case QLA82XX_L1DAT:
3396 case QLA82XX_L1INS:
3397 qla8044_minidump_process_l1cache(vha,
3398 entry_hdr, &data_ptr);
3399 break;
3400 case QLA82XX_RDOCM:
3401 qla8044_minidump_process_rdocm(vha,
3402 entry_hdr, &data_ptr);
3403 break;
3404 case QLA82XX_RDMUX:
3405 qla8044_minidump_process_rdmux(vha,
3406 entry_hdr, &data_ptr);
3407 break;
3408 case QLA82XX_QUEUE:
3409 qla8044_minidump_process_queue(vha,
3410 entry_hdr, &data_ptr);
3411 break;
3412 case QLA8044_POLLRD:
3413 rval = qla8044_minidump_process_pollrd(vha,
3414 entry_hdr, &data_ptr);
3415 if (rval != QLA_SUCCESS)
3416 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3417 break;
3418 case QLA8044_RDMUX2:
3419 qla8044_minidump_process_rdmux2(vha,
3420 entry_hdr, &data_ptr);
3421 break;
3422 case QLA8044_POLLRDMWR:
3423 rval = qla8044_minidump_process_pollrdmwr(vha,
3424 entry_hdr, &data_ptr);
3425 if (rval != QLA_SUCCESS)
3426 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3427 break;
3428 case QLA8044_RDDFE:
3429 rval = qla8044_minidump_process_rddfe(vha, entry_hdr,
3430 &data_ptr);
3431 if (rval != QLA_SUCCESS)
3432 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3433 break;
3434 case QLA8044_RDMDIO:
3435 rval = qla8044_minidump_process_rdmdio(vha, entry_hdr,
3436 &data_ptr);
3437 if (rval != QLA_SUCCESS)
3438 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3439 break;
3440 case QLA8044_POLLWR:
3441 rval = qla8044_minidump_process_pollwr(vha, entry_hdr,
3442 &data_ptr);
3443 if (rval != QLA_SUCCESS)
3444 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3445 break;
3446 case QLA82XX_RDNOP:
3447 default:
3448 qla8044_mark_entry_skipped(vha, entry_hdr, i);
3449 break;
3450 }
3451
3452 data_collected = (uint8_t *)data_ptr -
3453 (uint8_t *)((uint8_t *)ha->md_dump);
3454 skip_nxt_entry:
3455 /*
3456 * next entry in the template
3457 */
3458 entry_hdr = (struct qla8044_minidump_entry_hdr *)
3459 (((uint8_t *)entry_hdr) + entry_hdr->entry_size);
3460 }
3461
3462 if (data_collected != ha->md_dump_size) {
3463 ql_log(ql_log_info, vha, 0xb105,
3464 "Dump data mismatch: Data collected: "
3465 "[0x%x], total_data_size:[0x%x]\n",
3466 data_collected, ha->md_dump_size);
3467 rval = QLA_FUNCTION_FAILED;
3468 goto md_failed;
3469 }
3470
3471 ql_log(ql_log_info, vha, 0xb110,
3472 "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n",
3473 vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump);
3474 ha->fw_dumped = 1;
3475 qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP);
3476
3477
3478 ql_log(ql_log_info, vha, 0xb106,
3479 "Leaving fn: %s Last entry: 0x%x\n",
3480 __func__, i);
3481 md_failed:
3482 return rval;
3483 }
3484
3485 void
3486 qla8044_get_minidump(struct scsi_qla_host *vha)
3487 {
3488 struct qla_hw_data *ha = vha->hw;
3489
3490 if (!qla8044_collect_md_data(vha)) {
3491 ha->fw_dumped = 1;
3492 ha->prev_minidump_failed = 0;
3493 } else {
3494 ql_log(ql_log_fatal, vha, 0xb0db,
3495 "%s: Unable to collect minidump\n",
3496 __func__);
3497 ha->prev_minidump_failed = 1;
3498 }
3499 }
3500
3501 static int
3502 qla8044_poll_flash_status_reg(struct scsi_qla_host *vha)
3503 {
3504 uint32_t flash_status;
3505 int retries = QLA8044_FLASH_READ_RETRY_COUNT;
3506 int ret_val = QLA_SUCCESS;
3507
3508 while (retries--) {
3509 ret_val = qla8044_rd_reg_indirect(vha, QLA8044_FLASH_STATUS,
3510 &flash_status);
3511 if (ret_val) {
3512 ql_log(ql_log_warn, vha, 0xb13c,
3513 "%s: Failed to read FLASH_STATUS reg.\n",
3514 __func__);
3515 break;
3516 }
3517 if ((flash_status & QLA8044_FLASH_STATUS_READY) ==
3518 QLA8044_FLASH_STATUS_READY)
3519 break;
3520 msleep(QLA8044_FLASH_STATUS_REG_POLL_DELAY);
3521 }
3522
3523 if (!retries)
3524 ret_val = QLA_FUNCTION_FAILED;
3525
3526 return ret_val;
3527 }
3528
3529 static int
3530 qla8044_write_flash_status_reg(struct scsi_qla_host *vha,
3531 uint32_t data)
3532 {
3533 int ret_val = QLA_SUCCESS;
3534 uint32_t cmd;
3535
3536 cmd = vha->hw->fdt_wrt_sts_reg_cmd;
3537
3538 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3539 QLA8044_FLASH_STATUS_WRITE_DEF_SIG | cmd);
3540 if (ret_val) {
3541 ql_log(ql_log_warn, vha, 0xb125,
3542 "%s: Failed to write to FLASH_ADDR.\n", __func__);
3543 goto exit_func;
3544 }
3545
3546 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, data);
3547 if (ret_val) {
3548 ql_log(ql_log_warn, vha, 0xb126,
3549 "%s: Failed to write to FLASH_WRDATA.\n", __func__);
3550 goto exit_func;
3551 }
3552
3553 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3554 QLA8044_FLASH_SECOND_ERASE_MS_VAL);
3555 if (ret_val) {
3556 ql_log(ql_log_warn, vha, 0xb127,
3557 "%s: Failed to write to FLASH_CONTROL.\n", __func__);
3558 goto exit_func;
3559 }
3560
3561 ret_val = qla8044_poll_flash_status_reg(vha);
3562 if (ret_val)
3563 ql_log(ql_log_warn, vha, 0xb128,
3564 "%s: Error polling flash status reg.\n", __func__);
3565
3566 exit_func:
3567 return ret_val;
3568 }
3569
3570 /*
3571 * This function assumes that the flash lock is held.
3572 */
3573 static int
3574 qla8044_unprotect_flash(scsi_qla_host_t *vha)
3575 {
3576 int ret_val;
3577 struct qla_hw_data *ha = vha->hw;
3578
3579 ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_enable);
3580 if (ret_val)
3581 ql_log(ql_log_warn, vha, 0xb139,
3582 "%s: Write flash status failed.\n", __func__);
3583
3584 return ret_val;
3585 }
3586
3587 /*
3588 * This function assumes that the flash lock is held.
3589 */
3590 static int
3591 qla8044_protect_flash(scsi_qla_host_t *vha)
3592 {
3593 int ret_val;
3594 struct qla_hw_data *ha = vha->hw;
3595
3596 ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_disable);
3597 if (ret_val)
3598 ql_log(ql_log_warn, vha, 0xb13b,
3599 "%s: Write flash status failed.\n", __func__);
3600
3601 return ret_val;
3602 }
3603
3604
3605 static int
3606 qla8044_erase_flash_sector(struct scsi_qla_host *vha,
3607 uint32_t sector_start_addr)
3608 {
3609 uint32_t reversed_addr;
3610 int ret_val = QLA_SUCCESS;
3611
3612 ret_val = qla8044_poll_flash_status_reg(vha);
3613 if (ret_val) {
3614 ql_log(ql_log_warn, vha, 0xb12e,
3615 "%s: Poll flash status after erase failed..\n", __func__);
3616 }
3617
3618 reversed_addr = (((sector_start_addr & 0xFF) << 16) |
3619 (sector_start_addr & 0xFF00) |
3620 ((sector_start_addr & 0xFF0000) >> 16));
3621
3622 ret_val = qla8044_wr_reg_indirect(vha,
3623 QLA8044_FLASH_WRDATA, reversed_addr);
3624 if (ret_val) {
3625 ql_log(ql_log_warn, vha, 0xb12f,
3626 "%s: Failed to write to FLASH_WRDATA.\n", __func__);
3627 }
3628 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3629 QLA8044_FLASH_ERASE_SIG | vha->hw->fdt_erase_cmd);
3630 if (ret_val) {
3631 ql_log(ql_log_warn, vha, 0xb130,
3632 "%s: Failed to write to FLASH_ADDR.\n", __func__);
3633 }
3634 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3635 QLA8044_FLASH_LAST_ERASE_MS_VAL);
3636 if (ret_val) {
3637 ql_log(ql_log_warn, vha, 0xb131,
3638 "%s: Failed write to FLASH_CONTROL.\n", __func__);
3639 }
3640 ret_val = qla8044_poll_flash_status_reg(vha);
3641 if (ret_val) {
3642 ql_log(ql_log_warn, vha, 0xb132,
3643 "%s: Poll flash status failed.\n", __func__);
3644 }
3645
3646
3647 return ret_val;
3648 }
3649
3650 /*
3651 * qla8044_flash_write_u32 - Write data to flash
3652 *
3653 * @ha : Pointer to adapter structure
3654 * addr : Flash address to write to
3655 * p_data : Data to be written
3656 *
3657 * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
3658 *
3659 * NOTE: Lock should be held on entry
3660 */
3661 static int
3662 qla8044_flash_write_u32(struct scsi_qla_host *vha, uint32_t addr,
3663 uint32_t *p_data)
3664 {
3665 int ret_val = QLA_SUCCESS;
3666
3667 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3668 0x00800000 | (addr >> 2));
3669 if (ret_val) {
3670 ql_log(ql_log_warn, vha, 0xb134,
3671 "%s: Failed write to FLASH_ADDR.\n", __func__);
3672 goto exit_func;
3673 }
3674 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *p_data);
3675 if (ret_val) {
3676 ql_log(ql_log_warn, vha, 0xb135,
3677 "%s: Failed write to FLASH_WRDATA.\n", __func__);
3678 goto exit_func;
3679 }
3680 ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 0x3D);
3681 if (ret_val) {
3682 ql_log(ql_log_warn, vha, 0xb136,
3683 "%s: Failed write to FLASH_CONTROL.\n", __func__);
3684 goto exit_func;
3685 }
3686 ret_val = qla8044_poll_flash_status_reg(vha);
3687 if (ret_val) {
3688 ql_log(ql_log_warn, vha, 0xb137,
3689 "%s: Poll flash status failed.\n", __func__);
3690 }
3691
3692 exit_func:
3693 return ret_val;
3694 }
3695
3696 static int
3697 qla8044_write_flash_buffer_mode(scsi_qla_host_t *vha, uint32_t *dwptr,
3698 uint32_t faddr, uint32_t dwords)
3699 {
3700 int ret = QLA_FUNCTION_FAILED;
3701 uint32_t spi_val;
3702
3703 if (dwords < QLA8044_MIN_OPTROM_BURST_DWORDS ||
3704 dwords > QLA8044_MAX_OPTROM_BURST_DWORDS) {
3705 ql_dbg(ql_dbg_user, vha, 0xb123,
3706 "Got unsupported dwords = 0x%x.\n",
3707 dwords);
3708 return QLA_FUNCTION_FAILED;
3709 }
3710
3711 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, &spi_val);
3712 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3713 spi_val | QLA8044_FLASH_SPI_CTL);
3714 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3715 QLA8044_FLASH_FIRST_TEMP_VAL);
3716
3717 /* First DWORD write to FLASH_WRDATA */
3718 ret = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA,
3719 *dwptr++);
3720 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3721 QLA8044_FLASH_FIRST_MS_PATTERN);
3722
3723 ret = qla8044_poll_flash_status_reg(vha);
3724 if (ret) {
3725 ql_log(ql_log_warn, vha, 0xb124,
3726 "%s: Failed.\n", __func__);
3727 goto exit_func;
3728 }
3729
3730 dwords--;
3731
3732 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3733 QLA8044_FLASH_SECOND_TEMP_VAL);
3734
3735
3736 /* Second to N-1 DWORDS writes */
3737 while (dwords != 1) {
3738 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++);
3739 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3740 QLA8044_FLASH_SECOND_MS_PATTERN);
3741 ret = qla8044_poll_flash_status_reg(vha);
3742 if (ret) {
3743 ql_log(ql_log_warn, vha, 0xb129,
3744 "%s: Failed.\n", __func__);
3745 goto exit_func;
3746 }
3747 dwords--;
3748 }
3749
3750 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR,
3751 QLA8044_FLASH_FIRST_TEMP_VAL | (faddr >> 2));
3752
3753 /* Last DWORD write */
3754 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++);
3755 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL,
3756 QLA8044_FLASH_LAST_MS_PATTERN);
3757 ret = qla8044_poll_flash_status_reg(vha);
3758 if (ret) {
3759 ql_log(ql_log_warn, vha, 0xb12a,
3760 "%s: Failed.\n", __func__);
3761 goto exit_func;
3762 }
3763 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_STATUS, &spi_val);
3764
3765 if ((spi_val & QLA8044_FLASH_SPI_CTL) == QLA8044_FLASH_SPI_CTL) {
3766 ql_log(ql_log_warn, vha, 0xb12b,
3767 "%s: Failed.\n", __func__);
3768 spi_val = 0;
3769 /* Operation failed, clear error bit. */
3770 qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3771 &spi_val);
3772 qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL,
3773 spi_val | QLA8044_FLASH_SPI_CTL);
3774 }
3775 exit_func:
3776 return ret;
3777 }
3778
3779 static int
3780 qla8044_write_flash_dword_mode(scsi_qla_host_t *vha, uint32_t *dwptr,
3781 uint32_t faddr, uint32_t dwords)
3782 {
3783 int ret = QLA_FUNCTION_FAILED;
3784 uint32_t liter;
3785
3786 for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
3787 ret = qla8044_flash_write_u32(vha, faddr, dwptr);
3788 if (ret) {
3789 ql_dbg(ql_dbg_p3p, vha, 0xb141,
3790 "%s: flash address=%x data=%x.\n", __func__,
3791 faddr, *dwptr);
3792 break;
3793 }
3794 }
3795
3796 return ret;
3797 }
3798
3799 int
3800 qla8044_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
3801 uint32_t offset, uint32_t length)
3802 {
3803 int rval = QLA_FUNCTION_FAILED, i, burst_iter_count;
3804 int dword_count, erase_sec_count;
3805 uint32_t erase_offset;
3806 uint8_t *p_cache, *p_src;
3807
3808 erase_offset = offset;
3809
3810 p_cache = kcalloc(length, sizeof(uint8_t), GFP_KERNEL);
3811 if (!p_cache)
3812 return QLA_FUNCTION_FAILED;
3813
3814 memcpy(p_cache, buf, length);
3815 p_src = p_cache;
3816 dword_count = length / sizeof(uint32_t);
3817 /* Since the offset and legth are sector aligned, it will be always
3818 * multiple of burst_iter_count (64)
3819 */
3820 burst_iter_count = dword_count / QLA8044_MAX_OPTROM_BURST_DWORDS;
3821 erase_sec_count = length / QLA8044_SECTOR_SIZE;
3822
3823 /* Suspend HBA. */
3824 scsi_block_requests(vha->host);
3825 /* Lock and enable write for whole operation. */
3826 qla8044_flash_lock(vha);
3827 qla8044_unprotect_flash(vha);
3828
3829 /* Erasing the sectors */
3830 for (i = 0; i < erase_sec_count; i++) {
3831 rval = qla8044_erase_flash_sector(vha, erase_offset);
3832 ql_dbg(ql_dbg_user, vha, 0xb138,
3833 "Done erase of sector=0x%x.\n",
3834 erase_offset);
3835 if (rval) {
3836 ql_log(ql_log_warn, vha, 0xb121,
3837 "Failed to erase the sector having address: "
3838 "0x%x.\n", erase_offset);
3839 goto out;
3840 }
3841 erase_offset += QLA8044_SECTOR_SIZE;
3842 }
3843 ql_dbg(ql_dbg_user, vha, 0xb13f,
3844 "Got write for addr = 0x%x length=0x%x.\n",
3845 offset, length);
3846
3847 for (i = 0; i < burst_iter_count; i++) {
3848
3849 /* Go with write. */
3850 rval = qla8044_write_flash_buffer_mode(vha, (uint32_t *)p_src,
3851 offset, QLA8044_MAX_OPTROM_BURST_DWORDS);
3852 if (rval) {
3853 /* Buffer Mode failed skip to dword mode */
3854 ql_log(ql_log_warn, vha, 0xb122,
3855 "Failed to write flash in buffer mode, "
3856 "Reverting to slow-write.\n");
3857 rval = qla8044_write_flash_dword_mode(vha,
3858 (uint32_t *)p_src, offset,
3859 QLA8044_MAX_OPTROM_BURST_DWORDS);
3860 }
3861 p_src += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS;
3862 offset += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS;
3863 }
3864 ql_dbg(ql_dbg_user, vha, 0xb133,
3865 "Done writing.\n");
3866
3867 out:
3868 qla8044_protect_flash(vha);
3869 qla8044_flash_unlock(vha);
3870 scsi_unblock_requests(vha->host);
3871 kfree(p_cache);
3872
3873 return rval;
3874 }
3875
3876 #define LEG_INT_PTR_B31 (1 << 31)
3877 #define LEG_INT_PTR_B30 (1 << 30)
3878 #define PF_BITS_MASK (0xF << 16)
3879 /**
3880 * qla8044_intr_handler() - Process interrupts for the ISP8044
3881 * @irq: interrupt number
3882 * @dev_id: SCSI driver HA context
3883 *
3884 * Called by system whenever the host adapter generates an interrupt.
3885 *
3886 * Returns handled flag.
3887 */
3888 irqreturn_t
3889 qla8044_intr_handler(int irq, void *dev_id)
3890 {
3891 scsi_qla_host_t *vha;
3892 struct qla_hw_data *ha;
3893 struct rsp_que *rsp;
3894 struct device_reg_82xx __iomem *reg;
3895 int status = 0;
3896 unsigned long flags;
3897 unsigned long iter;
3898 uint32_t stat;
3899 uint16_t mb[4];
3900 uint32_t leg_int_ptr = 0, pf_bit;
3901
3902 rsp = (struct rsp_que *) dev_id;
3903 if (!rsp) {
3904 ql_log(ql_log_info, NULL, 0xb143,
3905 "%s(): NULL response queue pointer\n", __func__);
3906 return IRQ_NONE;
3907 }
3908 ha = rsp->hw;
3909 vha = pci_get_drvdata(ha->pdev);
3910
3911 if (unlikely(pci_channel_offline(ha->pdev)))
3912 return IRQ_HANDLED;
3913
3914 leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET);
3915
3916 /* Legacy interrupt is valid if bit31 of leg_int_ptr is set */
3917 if (!(leg_int_ptr & (LEG_INT_PTR_B31))) {
3918 ql_dbg(ql_dbg_p3p, vha, 0xb144,
3919 "%s: Legacy Interrupt Bit 31 not set, "
3920 "spurious interrupt!\n", __func__);
3921 return IRQ_NONE;
3922 }
3923
3924 pf_bit = ha->portnum << 16;
3925 /* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */
3926 if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) {
3927 ql_dbg(ql_dbg_p3p, vha, 0xb145,
3928 "%s: Incorrect function ID 0x%x in "
3929 "legacy interrupt register, "
3930 "ha->pf_bit = 0x%x\n", __func__,
3931 (leg_int_ptr & (PF_BITS_MASK)), pf_bit);
3932 return IRQ_NONE;
3933 }
3934
3935 /* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger
3936 * Control register and poll till Legacy Interrupt Pointer register
3937 * bit32 is 0.
3938 */
3939 qla8044_wr_reg(ha, LEG_INTR_TRIG_OFFSET, 0);
3940 do {
3941 leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET);
3942 if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit)
3943 break;
3944 } while (leg_int_ptr & (LEG_INT_PTR_B30));
3945
3946 reg = &ha->iobase->isp82;
3947 spin_lock_irqsave(&ha->hardware_lock, flags);
3948 for (iter = 1; iter--; ) {
3949
3950 if (RD_REG_DWORD(&reg->host_int)) {
3951 stat = RD_REG_DWORD(&reg->host_status);
3952 if ((stat & HSRX_RISC_INT) == 0)
3953 break;
3954
3955 switch (stat & 0xff) {
3956 case 0x1:
3957 case 0x2:
3958 case 0x10:
3959 case 0x11:
3960 qla82xx_mbx_completion(vha, MSW(stat));
3961 status |= MBX_INTERRUPT;
3962 break;
3963 case 0x12:
3964 mb[0] = MSW(stat);
3965 mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
3966 mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
3967 mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
3968 qla2x00_async_event(vha, rsp, mb);
3969 break;
3970 case 0x13:
3971 qla24xx_process_response_queue(vha, rsp);
3972 break;
3973 default:
3974 ql_dbg(ql_dbg_p3p, vha, 0xb146,
3975 "Unrecognized interrupt type "
3976 "(%d).\n", stat & 0xff);
3977 break;
3978 }
3979 }
3980 WRT_REG_DWORD(&reg->host_int, 0);
3981 }
3982
3983 qla2x00_handle_mbx_completion(ha, status);
3984 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3985
3986 return IRQ_HANDLED;
3987 }
3988
3989 static int
3990 qla8044_idc_dontreset(struct qla_hw_data *ha)
3991 {
3992 uint32_t idc_ctrl;
3993
3994 idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
3995 return idc_ctrl & DONTRESET_BIT0;
3996 }
3997
3998 static void
3999 qla8044_clear_rst_ready(scsi_qla_host_t *vha)
4000 {
4001 uint32_t drv_state;
4002
4003 drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
4004
4005 /*
4006 * For ISP8044, drv_active register has 1 bit per function,
4007 * shift 1 by func_num to set a bit for the function.
4008 * For ISP82xx, drv_active has 4 bits per function
4009 */
4010 drv_state &= ~(1 << vha->hw->portnum);
4011
4012 ql_dbg(ql_dbg_p3p, vha, 0xb13d,
4013 "drv_state: 0x%08x\n", drv_state);
4014 qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
4015 }
4016
4017 int
4018 qla8044_abort_isp(scsi_qla_host_t *vha)
4019 {
4020 int rval;
4021 uint32_t dev_state;
4022 struct qla_hw_data *ha = vha->hw;
4023
4024 qla8044_idc_lock(ha);
4025 dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
4026
4027 if (ql2xdontresethba)
4028 qla8044_set_idc_dontreset(vha);
4029
4030 /* If device_state is NEED_RESET, go ahead with
4031 * Reset,irrespective of ql2xdontresethba. This is to allow a
4032 * non-reset-owner to force a reset. Non-reset-owner sets
4033 * the IDC_CTRL BIT0 to prevent Reset-owner from doing a Reset
4034 * and then forces a Reset by setting device_state to
4035 * NEED_RESET. */
4036 if (dev_state == QLA8XXX_DEV_READY) {
4037 /* If IDC_CTRL DONTRESETHBA_BIT0 is set don't do reset
4038 * recovery */
4039 if (qla8044_idc_dontreset(ha) == DONTRESET_BIT0) {
4040 ql_dbg(ql_dbg_p3p, vha, 0xb13e,
4041 "Reset recovery disabled\n");
4042 rval = QLA_FUNCTION_FAILED;
4043 goto exit_isp_reset;
4044 }
4045
4046 ql_dbg(ql_dbg_p3p, vha, 0xb140,
4047 "HW State: NEED RESET\n");
4048 qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
4049 QLA8XXX_DEV_NEED_RESET);
4050 }
4051
4052 /* For ISP8044, Reset owner is NIC, iSCSI or FCOE based on priority
4053 * and which drivers are present. Unlike ISP82XX, the function setting
4054 * NEED_RESET, may not be the Reset owner. */
4055 qla83xx_reset_ownership(vha);
4056
4057 qla8044_idc_unlock(ha);
4058 rval = qla8044_device_state_handler(vha);
4059 qla8044_idc_lock(ha);
4060 qla8044_clear_rst_ready(vha);
4061
4062 exit_isp_reset:
4063 qla8044_idc_unlock(ha);
4064 if (rval == QLA_SUCCESS) {
4065 ha->flags.isp82xx_fw_hung = 0;
4066 ha->flags.nic_core_reset_hdlr_active = 0;
4067 rval = qla82xx_restart_isp(vha);
4068 }
4069
4070 return rval;
4071 }
4072
4073 void
4074 qla8044_fw_dump(scsi_qla_host_t *vha, int hardware_locked)
4075 {
4076 struct qla_hw_data *ha = vha->hw;
4077
4078 if (!ha->allow_cna_fw_dump)
4079 return;
4080
4081 scsi_block_requests(vha->host);
4082 ha->flags.isp82xx_no_md_cap = 1;
4083 qla8044_idc_lock(ha);
4084 qla82xx_set_reset_owner(vha);
4085 qla8044_idc_unlock(ha);
4086 qla2x00_wait_for_chip_reset(vha);
4087 scsi_unblock_requests(vha->host);
4088 }
Linux with added FPC-III support