xref: /linux/drivers/scsi/aacraid/rx.c (revision 905e46acd3272d04566fec49afbd7ad9e2ed9ae3)
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  *               2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
10  *		 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2, or (at your option)
15  * any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; see the file COPYING.  If not, write to
24  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
25  *
26  * Module Name:
27  *  rx.c
28  *
29  * Abstract: Hardware miniport for Drawbridge specific hardware functions.
30  *
31  */
32 
33 #include <linux/kernel.h>
34 #include <linux/init.h>
35 #include <linux/types.h>
36 #include <linux/pci.h>
37 #include <linux/spinlock.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 
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 	int isAif, isFastResponse, isSpecial;
90 	struct aac_dev *dev = dev_id;
91 	u32 Index = rx_readl(dev, MUnit.OutboundQueue);
92 	if (unlikely(Index == 0xFFFFFFFFL))
93 		Index = rx_readl(dev, MUnit.OutboundQueue);
94 	if (likely(Index != 0xFFFFFFFFL)) {
95 		do {
96 			isAif = isFastResponse = isSpecial = 0;
97 			if (Index & 0x00000002L) {
98 				isAif = 1;
99 				if (Index == 0xFFFFFFFEL)
100 					isSpecial = 1;
101 				Index &= ~0x00000002L;
102 			} else {
103 				if (Index & 0x00000001L)
104 					isFastResponse = 1;
105 				Index >>= 2;
106 			}
107 			if (!isSpecial) {
108 				if (unlikely(aac_intr_normal(dev,
109 						Index, isAif,
110 						isFastResponse, NULL))) {
111 					rx_writel(dev,
112 						MUnit.OutboundQueue,
113 						Index);
114 					rx_writel(dev,
115 						MUnit.ODR,
116 						DoorBellAdapterNormRespReady);
117 				}
118 			}
119 			Index = rx_readl(dev, MUnit.OutboundQueue);
120 		} while (Index != 0xFFFFFFFFL);
121 		return IRQ_HANDLED;
122 	}
123 	return IRQ_NONE;
124 }
125 
126 /**
127  *	aac_rx_disable_interrupt	-	Disable interrupts
128  *	@dev: Adapter
129  */
130 
131 static void aac_rx_disable_interrupt(struct aac_dev *dev)
132 {
133 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
134 }
135 
136 /**
137  *	aac_rx_enable_interrupt_producer	-	Enable interrupts
138  *	@dev: Adapter
139  */
140 
141 static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
142 {
143 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
144 }
145 
146 /**
147  *	aac_rx_enable_interrupt_message	-	Enable interrupts
148  *	@dev: Adapter
149  */
150 
151 static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
152 {
153 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
154 }
155 
156 /**
157  *	rx_sync_cmd	-	send a command and wait
158  *	@dev: Adapter
159  *	@command: Command to execute
160  *	@p1: first parameter
161  *	@ret: adapter status
162  *
163  *	This routine will send a synchronous command to the adapter and wait
164  *	for its	completion.
165  */
166 
167 static int rx_sync_cmd(struct aac_dev *dev, u32 command,
168 	u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
169 	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
170 {
171 	unsigned long start;
172 	int ok;
173 	/*
174 	 *	Write the command into Mailbox 0
175 	 */
176 	writel(command, &dev->IndexRegs->Mailbox[0]);
177 	/*
178 	 *	Write the parameters into Mailboxes 1 - 6
179 	 */
180 	writel(p1, &dev->IndexRegs->Mailbox[1]);
181 	writel(p2, &dev->IndexRegs->Mailbox[2]);
182 	writel(p3, &dev->IndexRegs->Mailbox[3]);
183 	writel(p4, &dev->IndexRegs->Mailbox[4]);
184 	/*
185 	 *	Clear the synch command doorbell to start on a clean slate.
186 	 */
187 	rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
188 	/*
189 	 *	Disable doorbell interrupts
190 	 */
191 	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
192 	/*
193 	 *	Force the completion of the mask register write before issuing
194 	 *	the interrupt.
195 	 */
196 	rx_readb (dev, MUnit.OIMR);
197 	/*
198 	 *	Signal that there is a new synch command
199 	 */
200 	rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
201 
202 	ok = 0;
203 	start = jiffies;
204 
205 	/*
206 	 *	Wait up to 30 seconds
207 	 */
208 	while (time_before(jiffies, start+30*HZ))
209 	{
210 		udelay(5);	/* Delay 5 microseconds to let Mon960 get info. */
211 		/*
212 		 *	Mon960 will set doorbell0 bit when it has completed the command.
213 		 */
214 		if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
215 			/*
216 			 *	Clear the doorbell.
217 			 */
218 			rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
219 			ok = 1;
220 			break;
221 		}
222 		/*
223 		 *	Yield the processor in case we are slow
224 		 */
225 		msleep(1);
226 	}
227 	if (unlikely(ok != 1)) {
228 		/*
229 		 *	Restore interrupt mask even though we timed out
230 		 */
231 		aac_adapter_enable_int(dev);
232 		return -ETIMEDOUT;
233 	}
234 	/*
235 	 *	Pull the synch status from Mailbox 0.
236 	 */
237 	if (status)
238 		*status = readl(&dev->IndexRegs->Mailbox[0]);
239 	if (r1)
240 		*r1 = readl(&dev->IndexRegs->Mailbox[1]);
241 	if (r2)
242 		*r2 = readl(&dev->IndexRegs->Mailbox[2]);
243 	if (r3)
244 		*r3 = readl(&dev->IndexRegs->Mailbox[3]);
245 	if (r4)
246 		*r4 = readl(&dev->IndexRegs->Mailbox[4]);
247 	/*
248 	 *	Clear the synch command doorbell.
249 	 */
250 	rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
251 	/*
252 	 *	Restore interrupt mask
253 	 */
254 	aac_adapter_enable_int(dev);
255 	return 0;
256 
257 }
258 
259 /**
260  *	aac_rx_interrupt_adapter	-	interrupt adapter
261  *	@dev: Adapter
262  *
263  *	Send an interrupt to the i960 and breakpoint it.
264  */
265 
266 static void aac_rx_interrupt_adapter(struct aac_dev *dev)
267 {
268 	rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
269 }
270 
271 /**
272  *	aac_rx_notify_adapter		-	send an event to the adapter
273  *	@dev: Adapter
274  *	@event: Event to send
275  *
276  *	Notify the i960 that something it probably cares about has
277  *	happened.
278  */
279 
280 static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
281 {
282 	switch (event) {
283 
284 	case AdapNormCmdQue:
285 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
286 		break;
287 	case HostNormRespNotFull:
288 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
289 		break;
290 	case AdapNormRespQue:
291 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
292 		break;
293 	case HostNormCmdNotFull:
294 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
295 		break;
296 	case HostShutdown:
297 		break;
298 	case FastIo:
299 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
300 		break;
301 	case AdapPrintfDone:
302 		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
303 		break;
304 	default:
305 		BUG();
306 		break;
307 	}
308 }
309 
310 /**
311  *	aac_rx_start_adapter		-	activate adapter
312  *	@dev:	Adapter
313  *
314  *	Start up processing on an i960 based AAC adapter
315  */
316 
317 static void aac_rx_start_adapter(struct aac_dev *dev)
318 {
319 	union aac_init *init;
320 
321 	init = dev->init;
322 	init->r7.host_elapsed_seconds = cpu_to_le32(get_seconds());
323 	// We can only use a 32 bit address here
324 	rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
325 	  0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
326 }
327 
328 /**
329  *	aac_rx_check_health
330  *	@dev: device to check if healthy
331  *
332  *	Will attempt to determine if the specified adapter is alive and
333  *	capable of handling requests, returning 0 if alive.
334  */
335 static int aac_rx_check_health(struct aac_dev *dev)
336 {
337 	u32 status = rx_readl(dev, MUnit.OMRx[0]);
338 
339 	/*
340 	 *	Check to see if the board failed any self tests.
341 	 */
342 	if (unlikely(status & SELF_TEST_FAILED))
343 		return -1;
344 	/*
345 	 *	Check to see if the board panic'd.
346 	 */
347 	if (unlikely(status & KERNEL_PANIC)) {
348 		char * buffer;
349 		struct POSTSTATUS {
350 			__le32 Post_Command;
351 			__le32 Post_Address;
352 		} * post;
353 		dma_addr_t paddr, baddr;
354 		int ret;
355 
356 		if (likely((status & 0xFF000000L) == 0xBC000000L))
357 			return (status >> 16) & 0xFF;
358 		buffer = dma_alloc_coherent(&dev->pdev->dev, 512, &baddr,
359 					    GFP_KERNEL);
360 		ret = -2;
361 		if (unlikely(buffer == NULL))
362 			return ret;
363 		post = dma_alloc_coherent(&dev->pdev->dev,
364 					  sizeof(struct POSTSTATUS), &paddr,
365 					  GFP_KERNEL);
366 		if (unlikely(post == NULL)) {
367 			dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);
368 			return ret;
369 		}
370 		memset(buffer, 0, 512);
371 		post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
372 		post->Post_Address = cpu_to_le32(baddr);
373 		rx_writel(dev, MUnit.IMRx[0], paddr);
374 		rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
375 		  NULL, NULL, NULL, NULL, NULL);
376 		dma_free_coherent(&dev->pdev->dev, sizeof(struct POSTSTATUS),
377 				  post, paddr);
378 		if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
379 			ret = (hex_to_bin(buffer[2]) << 4) +
380 				hex_to_bin(buffer[3]);
381 		}
382 		dma_free_coherent(&dev->pdev->dev, 512, buffer, baddr);
383 		return ret;
384 	}
385 	/*
386 	 *	Wait for the adapter to be up and running.
387 	 */
388 	if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
389 		return -3;
390 	/*
391 	 *	Everything is OK
392 	 */
393 	return 0;
394 }
395 
396 /**
397  *	aac_rx_deliver_producer
398  *	@fib: fib to issue
399  *
400  *	Will send a fib, returning 0 if successful.
401  */
402 int aac_rx_deliver_producer(struct fib * fib)
403 {
404 	struct aac_dev *dev = fib->dev;
405 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
406 	u32 Index;
407 	unsigned long nointr = 0;
408 
409 	aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
410 
411 	atomic_inc(&q->numpending);
412 	*(q->headers.producer) = cpu_to_le32(Index + 1);
413 	if (!(nointr & aac_config.irq_mod))
414 		aac_adapter_notify(dev, AdapNormCmdQueue);
415 
416 	return 0;
417 }
418 
419 /**
420  *	aac_rx_deliver_message
421  *	@fib: fib to issue
422  *
423  *	Will send a fib, returning 0 if successful.
424  */
425 static int aac_rx_deliver_message(struct fib * fib)
426 {
427 	struct aac_dev *dev = fib->dev;
428 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
429 	u32 Index;
430 	u64 addr;
431 	volatile void __iomem *device;
432 
433 	unsigned long count = 10000000L; /* 50 seconds */
434 	atomic_inc(&q->numpending);
435 	for(;;) {
436 		Index = rx_readl(dev, MUnit.InboundQueue);
437 		if (unlikely(Index == 0xFFFFFFFFL))
438 			Index = rx_readl(dev, MUnit.InboundQueue);
439 		if (likely(Index != 0xFFFFFFFFL))
440 			break;
441 		if (--count == 0) {
442 			atomic_dec(&q->numpending);
443 			return -ETIMEDOUT;
444 		}
445 		udelay(5);
446 	}
447 	device = dev->base + Index;
448 	addr = fib->hw_fib_pa;
449 	writel((u32)(addr & 0xffffffff), device);
450 	device += sizeof(u32);
451 	writel((u32)(addr >> 32), device);
452 	device += sizeof(u32);
453 	writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
454 	rx_writel(dev, MUnit.InboundQueue, Index);
455 	return 0;
456 }
457 
458 /**
459  *	aac_rx_ioremap
460  *	@size: mapping resize request
461  *
462  */
463 static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
464 {
465 	if (!size) {
466 		iounmap(dev->regs.rx);
467 		return 0;
468 	}
469 	dev->base = dev->regs.rx = ioremap(dev->base_start, size);
470 	if (dev->base == NULL)
471 		return -1;
472 	dev->IndexRegs = &dev->regs.rx->IndexRegs;
473 	return 0;
474 }
475 
476 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
477 {
478 	u32 var = 0;
479 
480 	if (!(dev->supplement_adapter_info.supported_options2 &
481 	  AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
482 		if (bled)
483 			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
484 				dev->name, dev->id, bled);
485 		else {
486 			bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
487 			  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
488 			if (!bled && (var != 0x00000001) && (var != 0x3803000F))
489 				bled = -EINVAL;
490 		}
491 		if (bled && (bled != -ETIMEDOUT))
492 			bled = aac_adapter_sync_cmd(dev, IOP_RESET,
493 			  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
494 
495 		if (bled && (bled != -ETIMEDOUT))
496 			return -EINVAL;
497 	}
498 	if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
499 		rx_writel(dev, MUnit.reserved2, 3);
500 		msleep(5000); /* Delay 5 seconds */
501 		var = 0x00000001;
502 	}
503 	if (bled && (var != 0x00000001))
504 		return -EINVAL;
505 	ssleep(5);
506 	if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
507 		return -ENODEV;
508 	if (startup_timeout < 300)
509 		startup_timeout = 300;
510 	return 0;
511 }
512 
513 /**
514  *	aac_rx_select_comm	-	Select communications method
515  *	@dev: Adapter
516  *	@comm: communications method
517  */
518 
519 int aac_rx_select_comm(struct aac_dev *dev, int comm)
520 {
521 	switch (comm) {
522 	case AAC_COMM_PRODUCER:
523 		dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
524 		dev->a_ops.adapter_intr = aac_rx_intr_producer;
525 		dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
526 		break;
527 	case AAC_COMM_MESSAGE:
528 		dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
529 		dev->a_ops.adapter_intr = aac_rx_intr_message;
530 		dev->a_ops.adapter_deliver = aac_rx_deliver_message;
531 		break;
532 	default:
533 		return 1;
534 	}
535 	return 0;
536 }
537 
538 /**
539  *	aac_rx_init	-	initialize an i960 based AAC card
540  *	@dev: device to configure
541  *
542  *	Allocate and set up resources for the i960 based AAC variants. The
543  *	device_interface in the commregion will be allocated and linked
544  *	to the comm region.
545  */
546 
547 int _aac_rx_init(struct aac_dev *dev)
548 {
549 	unsigned long start;
550 	unsigned long status;
551 	int restart = 0;
552 	int instance = dev->id;
553 	const char * name = dev->name;
554 
555 	if (aac_adapter_ioremap(dev, dev->base_size)) {
556 		printk(KERN_WARNING "%s: unable to map adapter.\n", name);
557 		goto error_iounmap;
558 	}
559 
560 	/* Failure to reset here is an option ... */
561 	dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
562 	dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
563 	dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
564 	if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
565 	  !aac_rx_restart_adapter(dev, 0, IOP_HWSOFT_RESET))
566 		/* Make sure the Hardware FIFO is empty */
567 		while ((++restart < 512) &&
568 		  (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
569 	/*
570 	 *	Check to see if the board panic'd while booting.
571 	 */
572 	status = rx_readl(dev, MUnit.OMRx[0]);
573 	if (status & KERNEL_PANIC) {
574 		if (aac_rx_restart_adapter(dev,
575 			aac_rx_check_health(dev), IOP_HWSOFT_RESET))
576 			goto error_iounmap;
577 		++restart;
578 	}
579 	/*
580 	 *	Check to see if the board failed any self tests.
581 	 */
582 	status = rx_readl(dev, MUnit.OMRx[0]);
583 	if (status & SELF_TEST_FAILED) {
584 		printk(KERN_ERR "%s%d: adapter self-test failed.\n", 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", dev->name, instance);
592 		goto error_iounmap;
593 	}
594 	start = jiffies;
595 	/*
596 	 *	Wait for the adapter to be up and running. Wait up to 3 minutes
597 	 */
598 	while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
599 	{
600 		if ((restart &&
601 		  (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
602 		  time_after(jiffies, start+HZ*startup_timeout)) {
603 			printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
604 					dev->name, instance, status);
605 			goto error_iounmap;
606 		}
607 		if (!restart &&
608 		  ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
609 		  time_after(jiffies, start + HZ *
610 		  ((startup_timeout > 60)
611 		    ? (startup_timeout - 60)
612 		    : (startup_timeout / 2))))) {
613 			if (likely(!aac_rx_restart_adapter(dev,
614 				aac_rx_check_health(dev), IOP_HWSOFT_RESET)))
615 				start = jiffies;
616 			++restart;
617 		}
618 		msleep(1);
619 	}
620 	if (restart && aac_commit)
621 		aac_commit = 1;
622 	/*
623 	 *	Fill in the common function dispatch table.
624 	 */
625 	dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
626 	dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
627 	dev->a_ops.adapter_notify = aac_rx_notify_adapter;
628 	dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
629 	dev->a_ops.adapter_check_health = aac_rx_check_health;
630 	dev->a_ops.adapter_restart = aac_rx_restart_adapter;
631 	dev->a_ops.adapter_start = aac_rx_start_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_PRODUCER);
638 	aac_adapter_disable_int(dev);
639 	rx_writel(dev, MUnit.ODR, 0xffffffff);
640 	aac_adapter_enable_int(dev);
641 
642 	if (aac_init_adapter(dev) == NULL)
643 		goto error_iounmap;
644 	aac_adapter_comm(dev, dev->comm_interface);
645 	dev->sync_mode = 0;	/* sync. mode not supported */
646 	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
647 	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
648 			IRQF_SHARED, "aacraid", dev) < 0) {
649 		if (dev->msi)
650 			pci_disable_msi(dev->pdev);
651 		printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
652 			name, instance);
653 		goto error_iounmap;
654 	}
655 	dev->dbg_base = dev->base_start;
656 	dev->dbg_base_mapped = dev->base;
657 	dev->dbg_size = dev->base_size;
658 
659 	aac_adapter_enable_int(dev);
660 	/*
661 	 *	Tell the adapter that all is configured, and it can
662 	 * start accepting requests
663 	 */
664 	aac_rx_start_adapter(dev);
665 
666 	return 0;
667 
668 error_iounmap:
669 
670 	return -1;
671 }
672 
673 int aac_rx_init(struct aac_dev *dev)
674 {
675 	/*
676 	 *	Fill in the function dispatch table.
677 	 */
678 	dev->a_ops.adapter_ioremap = aac_rx_ioremap;
679 	dev->a_ops.adapter_comm = aac_rx_select_comm;
680 
681 	return _aac_rx_init(dev);
682 }
683