xref: /openbmc/linux/drivers/scsi/aacraid/rx.c (revision a1e58bbd)
1 /*
2  *	Adaptec AAC series RAID controller driver
3  *	(c) Copyright 2001 Red Hat Inc.	<alan@redhat.com>
4  *
5  * based on the old aacraid driver that is..
6  * Adaptec aacraid device driver for Linux.
7  *
8  * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2, or (at your option)
13  * any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; see the file COPYING.  If not, write to
22  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23  *
24  * Module Name:
25  *  rx.c
26  *
27  * Abstract: Hardware miniport for Drawbridge specific hardware functions.
28  *
29  */
30 
31 #include <linux/kernel.h>
32 #include <linux/init.h>
33 #include <linux/types.h>
34 #include <linux/pci.h>
35 #include <linux/spinlock.h>
36 #include <linux/slab.h>
37 #include <linux/blkdev.h>
38 #include <linux/delay.h>
39 #include <linux/completion.h>
40 #include <linux/time.h>
41 #include <linux/interrupt.h>
42 #include <asm/semaphore.h>
43 
44 #include <scsi/scsi_host.h>
45 
46 #include "aacraid.h"
47 
48 static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
49 {
50 	struct aac_dev *dev = dev_id;
51 	unsigned long bellbits;
52 	u8 intstat = rx_readb(dev, MUnit.OISR);
53 
54 	/*
55 	 *	Read mask and invert because drawbridge is reversed.
56 	 *	This allows us to only service interrupts that have
57 	 *	been enabled.
58 	 *	Check to see if this is our interrupt.  If it isn't just return
59 	 */
60 	if (likely(intstat & ~(dev->OIMR))) {
61 		bellbits = rx_readl(dev, OutboundDoorbellReg);
62 		if (unlikely(bellbits & DoorBellPrintfReady)) {
63 			aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));
64 			rx_writel(dev, MUnit.ODR,DoorBellPrintfReady);
65 			rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone);
66 		}
67 		else if (unlikely(bellbits & DoorBellAdapterNormCmdReady)) {
68 			rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady);
69 			aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
70 		}
71 		else if (likely(bellbits & DoorBellAdapterNormRespReady)) {
72 			rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
73 			aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
74 		}
75 		else if (unlikely(bellbits & DoorBellAdapterNormCmdNotFull)) {
76 			rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
77 		}
78 		else if (unlikely(bellbits & DoorBellAdapterNormRespNotFull)) {
79 			rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
80 			rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
81 		}
82 		return IRQ_HANDLED;
83 	}
84 	return IRQ_NONE;
85 }
86 
87 static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
88 {
89 	struct aac_dev *dev = dev_id;
90 	u32 Index = rx_readl(dev, MUnit.OutboundQueue);
91 	if (unlikely(Index == 0xFFFFFFFFL))
92 		Index = rx_readl(dev, MUnit.OutboundQueue);
93 	if (likely(Index != 0xFFFFFFFFL)) {
94 		do {
95 			if (unlikely(aac_intr_normal(dev, Index))) {
96 				rx_writel(dev, MUnit.OutboundQueue, Index);
97 				rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespReady);
98 			}
99 			Index = rx_readl(dev, MUnit.OutboundQueue);
100 		} while (Index != 0xFFFFFFFFL);
101 		return IRQ_HANDLED;
102 	}
103 	return IRQ_NONE;
104 }
105 
106 /**
107  *	aac_rx_disable_interrupt	-	Disable interrupts
108  *	@dev: Adapter
109  */
110 
111 static void aac_rx_disable_interrupt(struct aac_dev *dev)
112 {
113 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
114 }
115 
116 /**
117  *	aac_rx_enable_interrupt_producer	-	Enable interrupts
118  *	@dev: Adapter
119  */
120 
121 static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
122 {
123 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
124 }
125 
126 /**
127  *	aac_rx_enable_interrupt_message	-	Enable interrupts
128  *	@dev: Adapter
129  */
130 
131 static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
132 {
133 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
134 }
135 
136 /**
137  *	rx_sync_cmd	-	send a command and wait
138  *	@dev: Adapter
139  *	@command: Command to execute
140  *	@p1: first parameter
141  *	@ret: adapter status
142  *
143  *	This routine will send a synchronous command to the adapter and wait
144  *	for its	completion.
145  */
146 
147 static int rx_sync_cmd(struct aac_dev *dev, u32 command,
148 	u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
149 	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
150 {
151 	unsigned long start;
152 	int ok;
153 	/*
154 	 *	Write the command into Mailbox 0
155 	 */
156 	writel(command, &dev->IndexRegs->Mailbox[0]);
157 	/*
158 	 *	Write the parameters into Mailboxes 1 - 6
159 	 */
160 	writel(p1, &dev->IndexRegs->Mailbox[1]);
161 	writel(p2, &dev->IndexRegs->Mailbox[2]);
162 	writel(p3, &dev->IndexRegs->Mailbox[3]);
163 	writel(p4, &dev->IndexRegs->Mailbox[4]);
164 	/*
165 	 *	Clear the synch command doorbell to start on a clean slate.
166 	 */
167 	rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
168 	/*
169 	 *	Disable doorbell interrupts
170 	 */
171 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
172 	/*
173 	 *	Force the completion of the mask register write before issuing
174 	 *	the interrupt.
175 	 */
176 	rx_readb (dev, MUnit.OIMR);
177 	/*
178 	 *	Signal that there is a new synch command
179 	 */
180 	rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
181 
182 	ok = 0;
183 	start = jiffies;
184 
185 	/*
186 	 *	Wait up to 30 seconds
187 	 */
188 	while (time_before(jiffies, start+30*HZ))
189 	{
190 		udelay(5);	/* Delay 5 microseconds to let Mon960 get info. */
191 		/*
192 		 *	Mon960 will set doorbell0 bit when it has completed the command.
193 		 */
194 		if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
195 			/*
196 			 *	Clear the doorbell.
197 			 */
198 			rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
199 			ok = 1;
200 			break;
201 		}
202 		/*
203 		 *	Yield the processor in case we are slow
204 		 */
205 		msleep(1);
206 	}
207 	if (unlikely(ok != 1)) {
208 		/*
209 		 *	Restore interrupt mask even though we timed out
210 		 */
211 		aac_adapter_enable_int(dev);
212 		return -ETIMEDOUT;
213 	}
214 	/*
215 	 *	Pull the synch status from Mailbox 0.
216 	 */
217 	if (status)
218 		*status = readl(&dev->IndexRegs->Mailbox[0]);
219 	if (r1)
220 		*r1 = readl(&dev->IndexRegs->Mailbox[1]);
221 	if (r2)
222 		*r2 = readl(&dev->IndexRegs->Mailbox[2]);
223 	if (r3)
224 		*r3 = readl(&dev->IndexRegs->Mailbox[3]);
225 	if (r4)
226 		*r4 = readl(&dev->IndexRegs->Mailbox[4]);
227 	/*
228 	 *	Clear the synch command doorbell.
229 	 */
230 	rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
231 	/*
232 	 *	Restore interrupt mask
233 	 */
234 	aac_adapter_enable_int(dev);
235 	return 0;
236 
237 }
238 
239 /**
240  *	aac_rx_interrupt_adapter	-	interrupt adapter
241  *	@dev: Adapter
242  *
243  *	Send an interrupt to the i960 and breakpoint it.
244  */
245 
246 static void aac_rx_interrupt_adapter(struct aac_dev *dev)
247 {
248 	rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
249 }
250 
251 /**
252  *	aac_rx_notify_adapter		-	send an event to the adapter
253  *	@dev: Adapter
254  *	@event: Event to send
255  *
256  *	Notify the i960 that something it probably cares about has
257  *	happened.
258  */
259 
260 static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
261 {
262 	switch (event) {
263 
264 	case AdapNormCmdQue:
265 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
266 		break;
267 	case HostNormRespNotFull:
268 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
269 		break;
270 	case AdapNormRespQue:
271 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
272 		break;
273 	case HostNormCmdNotFull:
274 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
275 		break;
276 	case HostShutdown:
277 		break;
278 	case FastIo:
279 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
280 		break;
281 	case AdapPrintfDone:
282 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
283 		break;
284 	default:
285 		BUG();
286 		break;
287 	}
288 }
289 
290 /**
291  *	aac_rx_start_adapter		-	activate adapter
292  *	@dev:	Adapter
293  *
294  *	Start up processing on an i960 based AAC adapter
295  */
296 
297 static void aac_rx_start_adapter(struct aac_dev *dev)
298 {
299 	struct aac_init *init;
300 
301 	init = dev->init;
302 	init->HostElapsedSeconds = cpu_to_le32(get_seconds());
303 	// We can only use a 32 bit address here
304 	rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
305 	  0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
306 }
307 
308 /**
309  *	aac_rx_check_health
310  *	@dev: device to check if healthy
311  *
312  *	Will attempt to determine if the specified adapter is alive and
313  *	capable of handling requests, returning 0 if alive.
314  */
315 static int aac_rx_check_health(struct aac_dev *dev)
316 {
317 	u32 status = rx_readl(dev, MUnit.OMRx[0]);
318 
319 	/*
320 	 *	Check to see if the board failed any self tests.
321 	 */
322 	if (unlikely(status & SELF_TEST_FAILED))
323 		return -1;
324 	/*
325 	 *	Check to see if the board panic'd.
326 	 */
327 	if (unlikely(status & KERNEL_PANIC)) {
328 		char * buffer;
329 		struct POSTSTATUS {
330 			__le32 Post_Command;
331 			__le32 Post_Address;
332 		} * post;
333 		dma_addr_t paddr, baddr;
334 		int ret;
335 
336 		if (likely((status & 0xFF000000L) == 0xBC000000L))
337 			return (status >> 16) & 0xFF;
338 		buffer = pci_alloc_consistent(dev->pdev, 512, &baddr);
339 		ret = -2;
340 		if (unlikely(buffer == NULL))
341 			return ret;
342 		post = pci_alloc_consistent(dev->pdev,
343 		  sizeof(struct POSTSTATUS), &paddr);
344 		if (unlikely(post == NULL)) {
345 			pci_free_consistent(dev->pdev, 512, buffer, baddr);
346 			return ret;
347 		}
348 		memset(buffer, 0, 512);
349 		post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
350 		post->Post_Address = cpu_to_le32(baddr);
351 		rx_writel(dev, MUnit.IMRx[0], paddr);
352 		rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
353 		  NULL, NULL, NULL, NULL, NULL);
354 		pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
355 		  post, paddr);
356 		if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
357 			ret = (buffer[2] <= '9') ? (buffer[2] - '0') : (buffer[2] - 'A' + 10);
358 			ret <<= 4;
359 			ret += (buffer[3] <= '9') ? (buffer[3] - '0') : (buffer[3] - 'A' + 10);
360 		}
361 		pci_free_consistent(dev->pdev, 512, buffer, baddr);
362 		return ret;
363 	}
364 	/*
365 	 *	Wait for the adapter to be up and running.
366 	 */
367 	if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
368 		return -3;
369 	/*
370 	 *	Everything is OK
371 	 */
372 	return 0;
373 }
374 
375 /**
376  *	aac_rx_deliver_producer
377  *	@fib: fib to issue
378  *
379  *	Will send a fib, returning 0 if successful.
380  */
381 int aac_rx_deliver_producer(struct fib * fib)
382 {
383 	struct aac_dev *dev = fib->dev;
384 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
385 	unsigned long qflags;
386 	u32 Index;
387 	unsigned long nointr = 0;
388 
389 	spin_lock_irqsave(q->lock, qflags);
390 	aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
391 
392 	q->numpending++;
393 	*(q->headers.producer) = cpu_to_le32(Index + 1);
394 	spin_unlock_irqrestore(q->lock, qflags);
395 	if (!(nointr & aac_config.irq_mod))
396 		aac_adapter_notify(dev, AdapNormCmdQueue);
397 
398 	return 0;
399 }
400 
401 /**
402  *	aac_rx_deliver_message
403  *	@fib: fib to issue
404  *
405  *	Will send a fib, returning 0 if successful.
406  */
407 static int aac_rx_deliver_message(struct fib * fib)
408 {
409 	struct aac_dev *dev = fib->dev;
410 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
411 	unsigned long qflags;
412 	u32 Index;
413 	u64 addr;
414 	volatile void __iomem *device;
415 
416 	unsigned long count = 10000000L; /* 50 seconds */
417 	spin_lock_irqsave(q->lock, qflags);
418 	q->numpending++;
419 	spin_unlock_irqrestore(q->lock, qflags);
420 	for(;;) {
421 		Index = rx_readl(dev, MUnit.InboundQueue);
422 		if (unlikely(Index == 0xFFFFFFFFL))
423 			Index = rx_readl(dev, MUnit.InboundQueue);
424 		if (likely(Index != 0xFFFFFFFFL))
425 			break;
426 		if (--count == 0) {
427 			spin_lock_irqsave(q->lock, qflags);
428 			q->numpending--;
429 			spin_unlock_irqrestore(q->lock, qflags);
430 			return -ETIMEDOUT;
431 		}
432 		udelay(5);
433 	}
434 	device = dev->base + Index;
435 	addr = fib->hw_fib_pa;
436 	writel((u32)(addr & 0xffffffff), device);
437 	device += sizeof(u32);
438 	writel((u32)(addr >> 32), device);
439 	device += sizeof(u32);
440 	writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
441 	rx_writel(dev, MUnit.InboundQueue, Index);
442 	return 0;
443 }
444 
445 /**
446  *	aac_rx_ioremap
447  *	@size: mapping resize request
448  *
449  */
450 static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
451 {
452 	if (!size) {
453 		iounmap(dev->regs.rx);
454 		return 0;
455 	}
456 	dev->base = dev->regs.rx = ioremap(dev->scsi_host_ptr->base, size);
457 	if (dev->base == NULL)
458 		return -1;
459 	dev->IndexRegs = &dev->regs.rx->IndexRegs;
460 	return 0;
461 }
462 
463 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
464 {
465 	u32 var;
466 
467 	if (!(dev->supplement_adapter_info.SupportedOptions2 &
468 	  AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
469 		if (bled)
470 			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
471 				dev->name, dev->id, bled);
472 		else {
473 			bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
474 			  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
475 			if (!bled && (var != 0x00000001) && (var != 0x3803000F))
476 				bled = -EINVAL;
477 		}
478 		if (bled && (bled != -ETIMEDOUT))
479 			bled = aac_adapter_sync_cmd(dev, IOP_RESET,
480 			  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
481 
482 		if (bled && (bled != -ETIMEDOUT))
483 			return -EINVAL;
484 	}
485 	if (bled || (var == 0x3803000F)) { /* USE_OTHER_METHOD */
486 		rx_writel(dev, MUnit.reserved2, 3);
487 		msleep(5000); /* Delay 5 seconds */
488 		var = 0x00000001;
489 	}
490 	if (var != 0x00000001)
491 		return -EINVAL;
492 	if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
493 		return -ENODEV;
494 	if (startup_timeout < 300)
495 		startup_timeout = 300;
496 	return 0;
497 }
498 
499 /**
500  *	aac_rx_select_comm	-	Select communications method
501  *	@dev: Adapter
502  *	@comm: communications method
503  */
504 
505 int aac_rx_select_comm(struct aac_dev *dev, int comm)
506 {
507 	switch (comm) {
508 	case AAC_COMM_PRODUCER:
509 		dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
510 		dev->a_ops.adapter_intr = aac_rx_intr_producer;
511 		dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
512 		break;
513 	case AAC_COMM_MESSAGE:
514 		dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
515 		dev->a_ops.adapter_intr = aac_rx_intr_message;
516 		dev->a_ops.adapter_deliver = aac_rx_deliver_message;
517 		break;
518 	default:
519 		return 1;
520 	}
521 	return 0;
522 }
523 
524 /**
525  *	aac_rx_init	-	initialize an i960 based AAC card
526  *	@dev: device to configure
527  *
528  *	Allocate and set up resources for the i960 based AAC variants. The
529  *	device_interface in the commregion will be allocated and linked
530  *	to the comm region.
531  */
532 
533 int _aac_rx_init(struct aac_dev *dev)
534 {
535 	unsigned long start;
536 	unsigned long status;
537 	int restart = 0;
538 	int instance = dev->id;
539 	const char * name = dev->name;
540 
541 	if (aac_adapter_ioremap(dev, dev->base_size)) {
542 		printk(KERN_WARNING "%s: unable to map adapter.\n", name);
543 		goto error_iounmap;
544 	}
545 
546 	/* Failure to reset here is an option ... */
547 	dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
548 	dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
549 	dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
550 	if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
551 	  !aac_rx_restart_adapter(dev, 0))
552 		/* Make sure the Hardware FIFO is empty */
553 		while ((++restart < 512) &&
554 		  (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
555 	/*
556 	 *	Check to see if the board panic'd while booting.
557 	 */
558 	status = rx_readl(dev, MUnit.OMRx[0]);
559 	if (status & KERNEL_PANIC) {
560 		if (aac_rx_restart_adapter(dev, aac_rx_check_health(dev)))
561 			goto error_iounmap;
562 		++restart;
563 	}
564 	/*
565 	 *	Check to see if the board failed any self tests.
566 	 */
567 	status = rx_readl(dev, MUnit.OMRx[0]);
568 	if (status & SELF_TEST_FAILED) {
569 		printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
570 		goto error_iounmap;
571 	}
572 	/*
573 	 *	Check to see if the monitor panic'd while booting.
574 	 */
575 	if (status & MONITOR_PANIC) {
576 		printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
577 		goto error_iounmap;
578 	}
579 	start = jiffies;
580 	/*
581 	 *	Wait for the adapter to be up and running. Wait up to 3 minutes
582 	 */
583 	while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
584 	{
585 		if ((restart &&
586 		  (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
587 		  time_after(jiffies, start+HZ*startup_timeout)) {
588 			printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
589 					dev->name, instance, status);
590 			goto error_iounmap;
591 		}
592 		if (!restart &&
593 		  ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
594 		  time_after(jiffies, start + HZ *
595 		  ((startup_timeout > 60)
596 		    ? (startup_timeout - 60)
597 		    : (startup_timeout / 2))))) {
598 			if (likely(!aac_rx_restart_adapter(dev, aac_rx_check_health(dev))))
599 				start = jiffies;
600 			++restart;
601 		}
602 		msleep(1);
603 	}
604 	if (restart && aac_commit)
605 		aac_commit = 1;
606 	/*
607 	 *	Fill in the common function dispatch table.
608 	 */
609 	dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
610 	dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
611 	dev->a_ops.adapter_notify = aac_rx_notify_adapter;
612 	dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
613 	dev->a_ops.adapter_check_health = aac_rx_check_health;
614 	dev->a_ops.adapter_restart = aac_rx_restart_adapter;
615 
616 	/*
617 	 *	First clear out all interrupts.  Then enable the one's that we
618 	 *	can handle.
619 	 */
620 	aac_adapter_comm(dev, AAC_COMM_PRODUCER);
621 	aac_adapter_disable_int(dev);
622 	rx_writel(dev, MUnit.ODR, 0xffffffff);
623 	aac_adapter_enable_int(dev);
624 
625 	if (aac_init_adapter(dev) == NULL)
626 		goto error_iounmap;
627 	aac_adapter_comm(dev, dev->comm_interface);
628 	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
629 	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
630 			IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) {
631 		if (dev->msi)
632 			pci_disable_msi(dev->pdev);
633 		printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
634 			name, instance);
635 		goto error_iounmap;
636 	}
637 	aac_adapter_enable_int(dev);
638 	/*
639 	 *	Tell the adapter that all is configured, and it can
640 	 * start accepting requests
641 	 */
642 	aac_rx_start_adapter(dev);
643 
644 	return 0;
645 
646 error_iounmap:
647 
648 	return -1;
649 }
650 
651 int aac_rx_init(struct aac_dev *dev)
652 {
653 	/*
654 	 *	Fill in the function dispatch table.
655 	 */
656 	dev->a_ops.adapter_ioremap = aac_rx_ioremap;
657 	dev->a_ops.adapter_comm = aac_rx_select_comm;
658 
659 	return _aac_rx_init(dev);
660 }
661