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Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / scsi / aacraid / src.c
1 /*
2 * Adaptec AAC series RAID controller driver
3 * (c) Copyright 2001 Red Hat Inc.
4 *
5 * based on the old aacraid driver that is..
6 * Adaptec aacraid device driver for Linux.
7 *
8 * Copyright (c) 2000-2010 Adaptec, Inc.
9 * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; see the file COPYING. If not, write to
23 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 * Module Name:
26 * src.c
27 *
28 * Abstract: Hardware Device Interface for PMC SRC based controllers
29 *
30 */
31
32 #include <linux/kernel.h>
33 #include <linux/init.h>
34 #include <linux/types.h>
35 #include <linux/pci.h>
36 #include <linux/spinlock.h>
37 #include <linux/slab.h>
38 #include <linux/blkdev.h>
39 #include <linux/delay.h>
40 #include <linux/completion.h>
41 #include <linux/time.h>
42 #include <linux/interrupt.h>
43 #include <scsi/scsi_host.h>
44
45 #include "aacraid.h"
46
47 static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
48 {
49 struct aac_dev *dev = dev_id;
50 unsigned long bellbits, bellbits_shifted;
51 int our_interrupt = 0;
52 int isFastResponse;
53 u32 index, handle;
54
55 bellbits = src_readl(dev, MUnit.ODR_R);
56 if (bellbits & PmDoorBellResponseSent) {
57 bellbits = PmDoorBellResponseSent;
58 /* handle async. status */
59 src_writel(dev, MUnit.ODR_C, bellbits);
60 src_readl(dev, MUnit.ODR_C);
61 our_interrupt = 1;
62 index = dev->host_rrq_idx;
63 for (;;) {
64 isFastResponse = 0;
65 /* remove toggle bit (31) */
66 handle = le32_to_cpu(dev->host_rrq[index]) & 0x7fffffff;
67 /* check fast response bit (30) */
68 if (handle & 0x40000000)
69 isFastResponse = 1;
70 handle &= 0x0000ffff;
71 if (handle == 0)
72 break;
73
74 aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
75
76 dev->host_rrq[index++] = 0;
77 if (index == dev->scsi_host_ptr->can_queue +
78 AAC_NUM_MGT_FIB)
79 index = 0;
80 dev->host_rrq_idx = index;
81 }
82 } else {
83 bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
84 if (bellbits_shifted & DoorBellAifPending) {
85 src_writel(dev, MUnit.ODR_C, bellbits);
86 src_readl(dev, MUnit.ODR_C);
87 our_interrupt = 1;
88 /* handle AIF */
89 aac_intr_normal(dev, 0, 2, 0, NULL);
90 } else if (bellbits_shifted & OUTBOUNDDOORBELL_0) {
91 unsigned long sflags;
92 struct list_head *entry;
93 int send_it = 0;
94 extern int aac_sync_mode;
95
96 src_writel(dev, MUnit.ODR_C, bellbits);
97 src_readl(dev, MUnit.ODR_C);
98
99 if (!aac_sync_mode) {
100 src_writel(dev, MUnit.ODR_C, bellbits);
101 src_readl(dev, MUnit.ODR_C);
102 our_interrupt = 1;
103 }
104
105 if (dev->sync_fib) {
106 our_interrupt = 1;
107 if (dev->sync_fib->callback)
108 dev->sync_fib->callback(dev->sync_fib->callback_data,
109 dev->sync_fib);
110 spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
111 if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
112 dev->management_fib_count--;
113 up(&dev->sync_fib->event_wait);
114 }
115 spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
116 spin_lock_irqsave(&dev->sync_lock, sflags);
117 if (!list_empty(&dev->sync_fib_list)) {
118 entry = dev->sync_fib_list.next;
119 dev->sync_fib = list_entry(entry, struct fib, fiblink);
120 list_del(entry);
121 send_it = 1;
122 } else {
123 dev->sync_fib = NULL;
124 }
125 spin_unlock_irqrestore(&dev->sync_lock, sflags);
126 if (send_it) {
127 aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
128 (u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
129 NULL, NULL, NULL, NULL, NULL);
130 }
131 }
132 }
133 }
134
135 if (our_interrupt) {
136 return IRQ_HANDLED;
137 }
138 return IRQ_NONE;
139 }
140
141 /**
142 * aac_src_disable_interrupt - Disable interrupts
143 * @dev: Adapter
144 */
145
146 static void aac_src_disable_interrupt(struct aac_dev *dev)
147 {
148 src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff);
149 }
150
151 /**
152 * aac_src_enable_interrupt_message - Enable interrupts
153 * @dev: Adapter
154 */
155
156 static void aac_src_enable_interrupt_message(struct aac_dev *dev)
157 {
158 src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8);
159 }
160
161 /**
162 * src_sync_cmd - send a command and wait
163 * @dev: Adapter
164 * @command: Command to execute
165 * @p1: first parameter
166 * @ret: adapter status
167 *
168 * This routine will send a synchronous command to the adapter and wait
169 * for its completion.
170 */
171
172 static int src_sync_cmd(struct aac_dev *dev, u32 command,
173 u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
174 u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
175 {
176 unsigned long start;
177 int ok;
178
179 /*
180 * Write the command into Mailbox 0
181 */
182 writel(command, &dev->IndexRegs->Mailbox[0]);
183 /*
184 * Write the parameters into Mailboxes 1 - 6
185 */
186 writel(p1, &dev->IndexRegs->Mailbox[1]);
187 writel(p2, &dev->IndexRegs->Mailbox[2]);
188 writel(p3, &dev->IndexRegs->Mailbox[3]);
189 writel(p4, &dev->IndexRegs->Mailbox[4]);
190
191 /*
192 * Clear the synch command doorbell to start on a clean slate.
193 */
194 src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
195
196 /*
197 * Disable doorbell interrupts
198 */
199 src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff);
200
201 /*
202 * Force the completion of the mask register write before issuing
203 * the interrupt.
204 */
205 src_readl(dev, MUnit.OIMR);
206
207 /*
208 * Signal that there is a new synch command
209 */
210 src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT);
211
212 if (!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) {
213 ok = 0;
214 start = jiffies;
215
216 /*
217 * Wait up to 5 minutes
218 */
219 while (time_before(jiffies, start+300*HZ)) {
220 udelay(5); /* Delay 5 microseconds to let Mon960 get info. */
221 /*
222 * Mon960 will set doorbell0 bit when it has completed the command.
223 */
224 if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) {
225 /*
226 * Clear the doorbell.
227 */
228 src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
229 ok = 1;
230 break;
231 }
232 /*
233 * Yield the processor in case we are slow
234 */
235 msleep(1);
236 }
237 if (unlikely(ok != 1)) {
238 /*
239 * Restore interrupt mask even though we timed out
240 */
241 aac_adapter_enable_int(dev);
242 return -ETIMEDOUT;
243 }
244 /*
245 * Pull the synch status from Mailbox 0.
246 */
247 if (status)
248 *status = readl(&dev->IndexRegs->Mailbox[0]);
249 if (r1)
250 *r1 = readl(&dev->IndexRegs->Mailbox[1]);
251 if (r2)
252 *r2 = readl(&dev->IndexRegs->Mailbox[2]);
253 if (r3)
254 *r3 = readl(&dev->IndexRegs->Mailbox[3]);
255 if (r4)
256 *r4 = readl(&dev->IndexRegs->Mailbox[4]);
257
258 /*
259 * Clear the synch command doorbell.
260 */
261 src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
262 }
263
264 /*
265 * Restore interrupt mask
266 */
267 aac_adapter_enable_int(dev);
268 return 0;
269 }
270
271 /**
272 * aac_src_interrupt_adapter - interrupt adapter
273 * @dev: Adapter
274 *
275 * Send an interrupt to the i960 and breakpoint it.
276 */
277
278 static void aac_src_interrupt_adapter(struct aac_dev *dev)
279 {
280 src_sync_cmd(dev, BREAKPOINT_REQUEST,
281 0, 0, 0, 0, 0, 0,
282 NULL, NULL, NULL, NULL, NULL);
283 }
284
285 /**
286 * aac_src_notify_adapter - send an event to the adapter
287 * @dev: Adapter
288 * @event: Event to send
289 *
290 * Notify the i960 that something it probably cares about has
291 * happened.
292 */
293
294 static void aac_src_notify_adapter(struct aac_dev *dev, u32 event)
295 {
296 switch (event) {
297
298 case AdapNormCmdQue:
299 src_writel(dev, MUnit.ODR_C,
300 INBOUNDDOORBELL_1 << SRC_ODR_SHIFT);
301 break;
302 case HostNormRespNotFull:
303 src_writel(dev, MUnit.ODR_C,
304 INBOUNDDOORBELL_4 << SRC_ODR_SHIFT);
305 break;
306 case AdapNormRespQue:
307 src_writel(dev, MUnit.ODR_C,
308 INBOUNDDOORBELL_2 << SRC_ODR_SHIFT);
309 break;
310 case HostNormCmdNotFull:
311 src_writel(dev, MUnit.ODR_C,
312 INBOUNDDOORBELL_3 << SRC_ODR_SHIFT);
313 break;
314 case FastIo:
315 src_writel(dev, MUnit.ODR_C,
316 INBOUNDDOORBELL_6 << SRC_ODR_SHIFT);
317 break;
318 case AdapPrintfDone:
319 src_writel(dev, MUnit.ODR_C,
320 INBOUNDDOORBELL_5 << SRC_ODR_SHIFT);
321 break;
322 default:
323 BUG();
324 break;
325 }
326 }
327
328 /**
329 * aac_src_start_adapter - activate adapter
330 * @dev: Adapter
331 *
332 * Start up processing on an i960 based AAC adapter
333 */
334
335 static void aac_src_start_adapter(struct aac_dev *dev)
336 {
337 struct aac_init *init;
338
339 /* reset host_rrq_idx first */
340 dev->host_rrq_idx = 0;
341
342 init = dev->init;
343 init->HostElapsedSeconds = cpu_to_le32(get_seconds());
344
345 /* We can only use a 32 bit address here */
346 src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
347 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
348 }
349
350 /**
351 * aac_src_check_health
352 * @dev: device to check if healthy
353 *
354 * Will attempt to determine if the specified adapter is alive and
355 * capable of handling requests, returning 0 if alive.
356 */
357 static int aac_src_check_health(struct aac_dev *dev)
358 {
359 u32 status = src_readl(dev, MUnit.OMR);
360
361 /*
362 * Check to see if the board failed any self tests.
363 */
364 if (unlikely(status & SELF_TEST_FAILED))
365 return -1;
366
367 /*
368 * Check to see if the board panic'd.
369 */
370 if (unlikely(status & KERNEL_PANIC))
371 return (status >> 16) & 0xFF;
372 /*
373 * Wait for the adapter to be up and running.
374 */
375 if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
376 return -3;
377 /*
378 * Everything is OK
379 */
380 return 0;
381 }
382
383 /**
384 * aac_src_deliver_message
385 * @fib: fib to issue
386 *
387 * Will send a fib, returning 0 if successful.
388 */
389 static int aac_src_deliver_message(struct fib *fib)
390 {
391 struct aac_dev *dev = fib->dev;
392 struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
393 unsigned long qflags;
394 u32 fibsize;
395 dma_addr_t address;
396 struct aac_fib_xporthdr *pFibX;
397 u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size);
398
399 spin_lock_irqsave(q->lock, qflags);
400 q->numpending++;
401 spin_unlock_irqrestore(q->lock, qflags);
402
403 if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
404 /* Calculate the amount to the fibsize bits */
405 fibsize = (hdr_size + 127) / 128 - 1;
406 if (fibsize > (ALIGN32 - 1))
407 return -EMSGSIZE;
408 /* New FIB header, 32-bit */
409 address = fib->hw_fib_pa;
410 fib->hw_fib_va->header.StructType = FIB_MAGIC2;
411 fib->hw_fib_va->header.SenderFibAddress = (u32)address;
412 fib->hw_fib_va->header.u.TimeStamp = 0;
413 BUG_ON(upper_32_bits(address) != 0L);
414 address |= fibsize;
415 } else {
416 /* Calculate the amount to the fibsize bits */
417 fibsize = (sizeof(struct aac_fib_xporthdr) + hdr_size + 127) / 128 - 1;
418 if (fibsize > (ALIGN32 - 1))
419 return -EMSGSIZE;
420
421 /* Fill XPORT header */
422 pFibX = (void *)fib->hw_fib_va - sizeof(struct aac_fib_xporthdr);
423 pFibX->Handle = cpu_to_le32(fib->hw_fib_va->header.Handle);
424 pFibX->HostAddress = cpu_to_le64(fib->hw_fib_pa);
425 pFibX->Size = cpu_to_le32(hdr_size);
426
427 /*
428 * The xport header has been 32-byte aligned for us so that fibsize
429 * can be masked out of this address by hardware. -- BenC
430 */
431 address = fib->hw_fib_pa - sizeof(struct aac_fib_xporthdr);
432 if (address & (ALIGN32 - 1))
433 return -EINVAL;
434 address |= fibsize;
435 }
436
437 src_writel(dev, MUnit.IQ_H, upper_32_bits(address) & 0xffffffff);
438 src_writel(dev, MUnit.IQ_L, address & 0xffffffff);
439
440 return 0;
441 }
442
443 /**
444 * aac_src_ioremap
445 * @size: mapping resize request
446 *
447 */
448 static int aac_src_ioremap(struct aac_dev *dev, u32 size)
449 {
450 if (!size) {
451 iounmap(dev->regs.src.bar1);
452 dev->regs.src.bar1 = NULL;
453 iounmap(dev->regs.src.bar0);
454 dev->base = dev->regs.src.bar0 = NULL;
455 return 0;
456 }
457 dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2),
458 AAC_MIN_SRC_BAR1_SIZE);
459 dev->base = NULL;
460 if (dev->regs.src.bar1 == NULL)
461 return -1;
462 dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size);
463 if (dev->base == NULL) {
464 iounmap(dev->regs.src.bar1);
465 dev->regs.src.bar1 = NULL;
466 return -1;
467 }
468 dev->IndexRegs = &((struct src_registers __iomem *)
469 dev->base)->u.tupelo.IndexRegs;
470 return 0;
471 }
472
473 /**
474 * aac_srcv_ioremap
475 * @size: mapping resize request
476 *
477 */
478 static int aac_srcv_ioremap(struct aac_dev *dev, u32 size)
479 {
480 if (!size) {
481 iounmap(dev->regs.src.bar0);
482 dev->base = dev->regs.src.bar0 = NULL;
483 return 0;
484 }
485 dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size);
486 if (dev->base == NULL)
487 return -1;
488 dev->IndexRegs = &((struct src_registers __iomem *)
489 dev->base)->u.denali.IndexRegs;
490 return 0;
491 }
492
493 static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
494 {
495 u32 var, reset_mask;
496
497 if (bled >= 0) {
498 if (bled)
499 printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
500 dev->name, dev->id, bled);
501 bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
502 0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
503 if (bled || (var != 0x00000001))
504 return -EINVAL;
505 if (dev->supplement_adapter_info.SupportedOptions2 &
506 AAC_OPTION_DOORBELL_RESET) {
507 src_writel(dev, MUnit.IDR, reset_mask);
508 msleep(5000); /* Delay 5 seconds */
509 }
510 }
511
512 if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC)
513 return -ENODEV;
514
515 if (startup_timeout < 300)
516 startup_timeout = 300;
517
518 return 0;
519 }
520
521 /**
522 * aac_src_select_comm - Select communications method
523 * @dev: Adapter
524 * @comm: communications method
525 */
526 int aac_src_select_comm(struct aac_dev *dev, int comm)
527 {
528 switch (comm) {
529 case AAC_COMM_MESSAGE:
530 dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
531 dev->a_ops.adapter_intr = aac_src_intr_message;
532 dev->a_ops.adapter_deliver = aac_src_deliver_message;
533 break;
534 default:
535 return 1;
536 }
537 return 0;
538 }
539
540 /**
541 * aac_src_init - initialize an Cardinal Frey Bar card
542 * @dev: device to configure
543 *
544 */
545
546 int aac_src_init(struct aac_dev *dev)
547 {
548 unsigned long start;
549 unsigned long status;
550 int restart = 0;
551 int instance = dev->id;
552 const char *name = dev->name;
553
554 dev->a_ops.adapter_ioremap = aac_src_ioremap;
555 dev->a_ops.adapter_comm = aac_src_select_comm;
556
557 dev->base_size = AAC_MIN_SRC_BAR0_SIZE;
558 if (aac_adapter_ioremap(dev, dev->base_size)) {
559 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
560 goto error_iounmap;
561 }
562
563 /* Failure to reset here is an option ... */
564 dev->a_ops.adapter_sync_cmd = src_sync_cmd;
565 dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
566 if ((aac_reset_devices || reset_devices) &&
567 !aac_src_restart_adapter(dev, 0))
568 ++restart;
569 /*
570 * Check to see if the board panic'd while booting.
571 */
572 status = src_readl(dev, MUnit.OMR);
573 if (status & KERNEL_PANIC) {
574 if (aac_src_restart_adapter(dev, aac_src_check_health(dev)))
575 goto error_iounmap;
576 ++restart;
577 }
578 /*
579 * Check to see if the board failed any self tests.
580 */
581 status = src_readl(dev, MUnit.OMR);
582 if (status & SELF_TEST_FAILED) {
583 printk(KERN_ERR "%s%d: adapter self-test failed.\n",
584 dev->name, instance);
585 goto error_iounmap;
586 }
587 /*
588 * Check to see if the monitor panic'd while booting.
589 */
590 if (status & MONITOR_PANIC) {
591 printk(KERN_ERR "%s%d: adapter monitor panic.\n",
592 dev->name, instance);
593 goto error_iounmap;
594 }
595 start = jiffies;
596 /*
597 * Wait for the adapter to be up and running. Wait up to 3 minutes
598 */
599 while (!((status = src_readl(dev, MUnit.OMR)) &
600 KERNEL_UP_AND_RUNNING)) {
601 if ((restart &&
602 (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
603 time_after(jiffies, start+HZ*startup_timeout)) {
604 printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
605 dev->name, instance, status);
606 goto error_iounmap;
607 }
608 if (!restart &&
609 ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
610 time_after(jiffies, start + HZ *
611 ((startup_timeout > 60)
612 ? (startup_timeout - 60)
613 : (startup_timeout / 2))))) {
614 if (likely(!aac_src_restart_adapter(dev,
615 aac_src_check_health(dev))))
616 start = jiffies;
617 ++restart;
618 }
619 msleep(1);
620 }
621 if (restart && aac_commit)
622 aac_commit = 1;
623 /*
624 * Fill in the common function dispatch table.
625 */
626 dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
627 dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
628 dev->a_ops.adapter_notify = aac_src_notify_adapter;
629 dev->a_ops.adapter_sync_cmd = src_sync_cmd;
630 dev->a_ops.adapter_check_health = aac_src_check_health;
631 dev->a_ops.adapter_restart = aac_src_restart_adapter;
632
633 /*
634 * First clear out all interrupts. Then enable the one's that we
635 * can handle.
636 */
637 aac_adapter_comm(dev, AAC_COMM_MESSAGE);
638 aac_adapter_disable_int(dev);
639 src_writel(dev, MUnit.ODR_C, 0xffffffff);
640 aac_adapter_enable_int(dev);
641
642 if (aac_init_adapter(dev) == NULL)
643 goto error_iounmap;
644 if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1)
645 goto error_iounmap;
646
647 dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
648
649 if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
650 IRQF_SHARED, "aacraid", dev) < 0) {
651
652 if (dev->msi)
653 pci_disable_msi(dev->pdev);
654
655 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
656 name, instance);
657 goto error_iounmap;
658 }
659 dev->dbg_base = pci_resource_start(dev->pdev, 2);
660 dev->dbg_base_mapped = dev->regs.src.bar1;
661 dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
662
663 aac_adapter_enable_int(dev);
664
665 if (!dev->sync_mode) {
666 /*
667 * Tell the adapter that all is configured, and it can
668 * start accepting requests
669 */
670 aac_src_start_adapter(dev);
671 }
672 return 0;
673
674 error_iounmap:
675
676 return -1;
677 }
678
679 /**
680 * aac_srcv_init - initialize an SRCv card
681 * @dev: device to configure
682 *
683 */
684
685 int aac_srcv_init(struct aac_dev *dev)
686 {
687 unsigned long start;
688 unsigned long status;
689 int restart = 0;
690 int instance = dev->id;
691 const char *name = dev->name;
692
693 dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
694 dev->a_ops.adapter_comm = aac_src_select_comm;
695
696 dev->base_size = AAC_MIN_SRCV_BAR0_SIZE;
697 if (aac_adapter_ioremap(dev, dev->base_size)) {
698 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
699 goto error_iounmap;
700 }
701
702 /* Failure to reset here is an option ... */
703 dev->a_ops.adapter_sync_cmd = src_sync_cmd;
704 dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
705 if ((aac_reset_devices || reset_devices) &&
706 !aac_src_restart_adapter(dev, 0))
707 ++restart;
708 /*
709 * Check to see if flash update is running.
710 * Wait for the adapter to be up and running. Wait up to 5 minutes
711 */
712 status = src_readl(dev, MUnit.OMR);
713 if (status & FLASH_UPD_PENDING) {
714 start = jiffies;
715 do {
716 status = src_readl(dev, MUnit.OMR);
717 if (time_after(jiffies, start+HZ*FWUPD_TIMEOUT)) {
718 printk(KERN_ERR "%s%d: adapter flash update failed.\n",
719 dev->name, instance);
720 goto error_iounmap;
721 }
722 } while (!(status & FLASH_UPD_SUCCESS) &&
723 !(status & FLASH_UPD_FAILED));
724 /* Delay 10 seconds.
725 * Because right now FW is doing a soft reset,
726 * do not read scratch pad register at this time
727 */
728 ssleep(10);
729 }
730 /*
731 * Check to see if the board panic'd while booting.
732 */
733 status = src_readl(dev, MUnit.OMR);
734 if (status & KERNEL_PANIC) {
735 if (aac_src_restart_adapter(dev, aac_src_check_health(dev)))
736 goto error_iounmap;
737 ++restart;
738 }
739 /*
740 * Check to see if the board failed any self tests.
741 */
742 status = src_readl(dev, MUnit.OMR);
743 if (status & SELF_TEST_FAILED) {
744 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
745 goto error_iounmap;
746 }
747 /*
748 * Check to see if the monitor panic'd while booting.
749 */
750 if (status & MONITOR_PANIC) {
751 printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
752 goto error_iounmap;
753 }
754 start = jiffies;
755 /*
756 * Wait for the adapter to be up and running. Wait up to 3 minutes
757 */
758 while (!((status = src_readl(dev, MUnit.OMR)) &
759 KERNEL_UP_AND_RUNNING) ||
760 status == 0xffffffff) {
761 if ((restart &&
762 (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
763 time_after(jiffies, start+HZ*startup_timeout)) {
764 printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
765 dev->name, instance, status);
766 goto error_iounmap;
767 }
768 if (!restart &&
769 ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
770 time_after(jiffies, start + HZ *
771 ((startup_timeout > 60)
772 ? (startup_timeout - 60)
773 : (startup_timeout / 2))))) {
774 if (likely(!aac_src_restart_adapter(dev, aac_src_check_health(dev))))
775 start = jiffies;
776 ++restart;
777 }
778 msleep(1);
779 }
780 if (restart && aac_commit)
781 aac_commit = 1;
782 /*
783 * Fill in the common function dispatch table.
784 */
785 dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
786 dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
787 dev->a_ops.adapter_notify = aac_src_notify_adapter;
788 dev->a_ops.adapter_sync_cmd = src_sync_cmd;
789 dev->a_ops.adapter_check_health = aac_src_check_health;
790 dev->a_ops.adapter_restart = aac_src_restart_adapter;
791
792 /*
793 * First clear out all interrupts. Then enable the one's that we
794 * can handle.
795 */
796 aac_adapter_comm(dev, AAC_COMM_MESSAGE);
797 aac_adapter_disable_int(dev);
798 src_writel(dev, MUnit.ODR_C, 0xffffffff);
799 aac_adapter_enable_int(dev);
800
801 if (aac_init_adapter(dev) == NULL)
802 goto error_iounmap;
803 if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2)
804 goto error_iounmap;
805 dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
806 if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
807 IRQF_SHARED, "aacraid", dev) < 0) {
808 if (dev->msi)
809 pci_disable_msi(dev->pdev);
810 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
811 name, instance);
812 goto error_iounmap;
813 }
814 dev->dbg_base = dev->base_start;
815 dev->dbg_base_mapped = dev->base;
816 dev->dbg_size = dev->base_size;
817
818 aac_adapter_enable_int(dev);
819
820 if (!dev->sync_mode) {
821 /*
822 * Tell the adapter that all is configured, and it can
823 * start accepting requests
824 */
825 aac_src_start_adapter(dev);
826 }
827 return 0;
828
829 error_iounmap:
830
831 return -1;
832 }
833
Linux kernel - Deliverables
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