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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 *  rx.c
27 *
28 * Abstract: Hardware miniport for Drawbridge specific hardware functions.
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/blkdev.h>
38#include <linux/delay.h>
39#include <linux/completion.h>
40#include <linux/time.h>
41#include <linux/interrupt.h>
42
43#include <scsi/scsi_host.h>
44
45#include "aacraid.h"
46
47static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id)
48{
49	struct aac_dev *dev = dev_id;
50	unsigned long bellbits;
51	u8 intstat = rx_readb(dev, MUnit.OISR);
52
53	/*
54	 *	Read mask and invert because drawbridge is reversed.
55	 *	This allows us to only service interrupts that have
56	 *	been enabled.
57	 *	Check to see if this is our interrupt.  If it isn't just return
58	 */
59	if (likely(intstat & ~(dev->OIMR))) {
60		bellbits = rx_readl(dev, OutboundDoorbellReg);
61		if (unlikely(bellbits & DoorBellPrintfReady)) {
62			aac_printf(dev, readl (&dev->IndexRegs->Mailbox[5]));
63			rx_writel(dev, MUnit.ODR,DoorBellPrintfReady);
64			rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone);
65		}
66		else if (unlikely(bellbits & DoorBellAdapterNormCmdReady)) {
67			rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady);
68			aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
69		}
70		else if (likely(bellbits & DoorBellAdapterNormRespReady)) {
71			rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady);
72			aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
73		}
74		else if (unlikely(bellbits & DoorBellAdapterNormCmdNotFull)) {
75			rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
76		}
77		else if (unlikely(bellbits & DoorBellAdapterNormRespNotFull)) {
78			rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull);
79			rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull);
80		}
81		return IRQ_HANDLED;
82	}
83	return IRQ_NONE;
84}
85
86static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
87{
88	int isAif, isFastResponse, isSpecial;
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			isAif = isFastResponse = isSpecial = 0;
96			if (Index & 0x00000002L) {
97				isAif = 1;
98				if (Index == 0xFFFFFFFEL)
99					isSpecial = 1;
100				Index &= ~0x00000002L;
101			} else {
102				if (Index & 0x00000001L)
103					isFastResponse = 1;
104				Index >>= 2;
105			}
106			if (!isSpecial) {
107				if (unlikely(aac_intr_normal(dev,
108						Index, isAif,
109						isFastResponse, NULL))) {
110					rx_writel(dev,
111						MUnit.OutboundQueue,
112						Index);
113					rx_writel(dev,
114						MUnit.ODR,
115						DoorBellAdapterNormRespReady);
116				}
117			}
118			Index = rx_readl(dev, MUnit.OutboundQueue);
119		} while (Index != 0xFFFFFFFFL);
120		return IRQ_HANDLED;
121	}
122	return IRQ_NONE;
123}
124
125/**
126 *	aac_rx_disable_interrupt	-	Disable interrupts
127 *	@dev: Adapter
128 */
129
130static void aac_rx_disable_interrupt(struct aac_dev *dev)
131{
132	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
133}
134
135/**
136 *	aac_rx_enable_interrupt_producer	-	Enable interrupts
137 *	@dev: Adapter
138 */
139
140static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
141{
142	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
143}
144
145/**
146 *	aac_rx_enable_interrupt_message	-	Enable interrupts
147 *	@dev: Adapter
148 */
149
150static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
151{
152	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
153}
154
155/**
156 *	rx_sync_cmd	-	send a command and wait
157 *	@dev: Adapter
158 *	@command: Command to execute
159 *	@p1: first parameter
160 *	@ret: adapter status
161 *
162 *	This routine will send a synchronous command to the adapter and wait
163 *	for its	completion.
164 */
165
166static int rx_sync_cmd(struct aac_dev *dev, u32 command,
167	u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
168	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
169{
170	unsigned long start;
171	int ok;
172	/*
173	 *	Write the command into Mailbox 0
174	 */
175	writel(command, &dev->IndexRegs->Mailbox[0]);
176	/*
177	 *	Write the parameters into Mailboxes 1 - 6
178	 */
179	writel(p1, &dev->IndexRegs->Mailbox[1]);
180	writel(p2, &dev->IndexRegs->Mailbox[2]);
181	writel(p3, &dev->IndexRegs->Mailbox[3]);
182	writel(p4, &dev->IndexRegs->Mailbox[4]);
183	/*
184	 *	Clear the synch command doorbell to start on a clean slate.
185	 */
186	rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
187	/*
188	 *	Disable doorbell interrupts
189	 */
190	rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
191	/*
192	 *	Force the completion of the mask register write before issuing
193	 *	the interrupt.
194	 */
195	rx_readb (dev, MUnit.OIMR);
196	/*
197	 *	Signal that there is a new synch command
198	 */
199	rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
200
201	ok = 0;
202	start = jiffies;
203
204	/*
205	 *	Wait up to 30 seconds
206	 */
207	while (time_before(jiffies, start+30*HZ))
208	{
209		udelay(5);	/* Delay 5 microseconds to let Mon960 get info. */
210		/*
211		 *	Mon960 will set doorbell0 bit when it has completed the command.
212		 */
213		if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
214			/*
215			 *	Clear the doorbell.
216			 */
217			rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
218			ok = 1;
219			break;
220		}
221		/*
222		 *	Yield the processor in case we are slow
223		 */
224		msleep(1);
225	}
226	if (unlikely(ok != 1)) {
227		/*
228		 *	Restore interrupt mask even though we timed out
229		 */
230		aac_adapter_enable_int(dev);
231		return -ETIMEDOUT;
232	}
233	/*
234	 *	Pull the synch status from Mailbox 0.
235	 */
236	if (status)
237		*status = readl(&dev->IndexRegs->Mailbox[0]);
238	if (r1)
239		*r1 = readl(&dev->IndexRegs->Mailbox[1]);
240	if (r2)
241		*r2 = readl(&dev->IndexRegs->Mailbox[2]);
242	if (r3)
243		*r3 = readl(&dev->IndexRegs->Mailbox[3]);
244	if (r4)
245		*r4 = readl(&dev->IndexRegs->Mailbox[4]);
246	/*
247	 *	Clear the synch command doorbell.
248	 */
249	rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
250	/*
251	 *	Restore interrupt mask
252	 */
253	aac_adapter_enable_int(dev);
254	return 0;
255
256}
257
258/**
259 *	aac_rx_interrupt_adapter	-	interrupt adapter
260 *	@dev: Adapter
261 *
262 *	Send an interrupt to the i960 and breakpoint it.
263 */
264
265static void aac_rx_interrupt_adapter(struct aac_dev *dev)
266{
267	rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
268}
269
270/**
271 *	aac_rx_notify_adapter		-	send an event to the adapter
272 *	@dev: Adapter
273 *	@event: Event to send
274 *
275 *	Notify the i960 that something it probably cares about has
276 *	happened.
277 */
278
279static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
280{
281	switch (event) {
282
283	case AdapNormCmdQue:
284		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
285		break;
286	case HostNormRespNotFull:
287		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
288		break;
289	case AdapNormRespQue:
290		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
291		break;
292	case HostNormCmdNotFull:
293		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
294		break;
295	case HostShutdown:
296		break;
297	case FastIo:
298		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
299		break;
300	case AdapPrintfDone:
301		rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
302		break;
303	default:
304		BUG();
305		break;
306	}
307}
308
309/**
310 *	aac_rx_start_adapter		-	activate adapter
311 *	@dev:	Adapter
312 *
313 *	Start up processing on an i960 based AAC adapter
314 */
315
316static void aac_rx_start_adapter(struct aac_dev *dev)
317{
318	struct aac_init *init;
319
320	init = dev->init;
321	init->HostElapsedSeconds = cpu_to_le32(get_seconds());
322	// We can only use a 32 bit address here
323	rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
324	  0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
325}
326
327/**
328 *	aac_rx_check_health
329 *	@dev: device to check if healthy
330 *
331 *	Will attempt to determine if the specified adapter is alive and
332 *	capable of handling requests, returning 0 if alive.
333 */
334static int aac_rx_check_health(struct aac_dev *dev)
335{
336	u32 status = rx_readl(dev, MUnit.OMRx[0]);
337
338	/*
339	 *	Check to see if the board failed any self tests.
340	 */
341	if (unlikely(status & SELF_TEST_FAILED))
342		return -1;
343	/*
344	 *	Check to see if the board panic'd.
345	 */
346	if (unlikely(status & KERNEL_PANIC)) {
347		char * buffer;
348		struct POSTSTATUS {
349			__le32 Post_Command;
350			__le32 Post_Address;
351		} * post;
352		dma_addr_t paddr, baddr;
353		int ret;
354
355		if (likely((status & 0xFF000000L) == 0xBC000000L))
356			return (status >> 16) & 0xFF;
357		buffer = pci_alloc_consistent(dev->pdev, 512, &baddr);
358		ret = -2;
359		if (unlikely(buffer == NULL))
360			return ret;
361		post = pci_alloc_consistent(dev->pdev,
362		  sizeof(struct POSTSTATUS), &paddr);
363		if (unlikely(post == NULL)) {
364			pci_free_consistent(dev->pdev, 512, buffer, baddr);
365			return ret;
366		}
367		memset(buffer, 0, 512);
368		post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
369		post->Post_Address = cpu_to_le32(baddr);
370		rx_writel(dev, MUnit.IMRx[0], paddr);
371		rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
372		  NULL, NULL, NULL, NULL, NULL);
373		pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
374		  post, paddr);
375		if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
376			ret = (hex_to_bin(buffer[2]) << 4) +
377				hex_to_bin(buffer[3]);
378		}
379		pci_free_consistent(dev->pdev, 512, buffer, baddr);
380		return ret;
381	}
382	/*
383	 *	Wait for the adapter to be up and running.
384	 */
385	if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
386		return -3;
387	/*
388	 *	Everything is OK
389	 */
390	return 0;
391}
392
393/**
394 *	aac_rx_deliver_producer
395 *	@fib: fib to issue
396 *
397 *	Will send a fib, returning 0 if successful.
398 */
399int aac_rx_deliver_producer(struct fib * fib)
400{
401	struct aac_dev *dev = fib->dev;
402	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
403	unsigned long qflags;
404	u32 Index;
405	unsigned long nointr = 0;
406
407	spin_lock_irqsave(q->lock, qflags);
408	aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
409
410	q->numpending++;
411	*(q->headers.producer) = cpu_to_le32(Index + 1);
412	spin_unlock_irqrestore(q->lock, qflags);
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 */
425static 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	unsigned long qflags;
430	u32 Index;
431	u64 addr;
432	volatile void __iomem *device;
433
434	unsigned long count = 10000000L; /* 50 seconds */
435	spin_lock_irqsave(q->lock, qflags);
436	q->numpending++;
437	spin_unlock_irqrestore(q->lock, qflags);
438	for(;;) {
439		Index = rx_readl(dev, MUnit.InboundQueue);
440		if (unlikely(Index == 0xFFFFFFFFL))
441			Index = rx_readl(dev, MUnit.InboundQueue);
442		if (likely(Index != 0xFFFFFFFFL))
443			break;
444		if (--count == 0) {
445			spin_lock_irqsave(q->lock, qflags);
446			q->numpending--;
447			spin_unlock_irqrestore(q->lock, qflags);
448			return -ETIMEDOUT;
449		}
450		udelay(5);
451	}
452	device = dev->base + Index;
453	addr = fib->hw_fib_pa;
454	writel((u32)(addr & 0xffffffff), device);
455	device += sizeof(u32);
456	writel((u32)(addr >> 32), device);
457	device += sizeof(u32);
458	writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
459	rx_writel(dev, MUnit.InboundQueue, Index);
460	return 0;
461}
462
463/**
464 *	aac_rx_ioremap
465 *	@size: mapping resize request
466 *
467 */
468static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
469{
470	if (!size) {
471		iounmap(dev->regs.rx);
472		return 0;
473	}
474	dev->base = dev->regs.rx = ioremap(dev->base_start, size);
475	if (dev->base == NULL)
476		return -1;
477	dev->IndexRegs = &dev->regs.rx->IndexRegs;
478	return 0;
479}
480
481static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
482{
483	u32 var = 0;
484
485	if (!(dev->supplement_adapter_info.SupportedOptions2 &
486	  AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
487		if (bled)
488			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
489				dev->name, dev->id, bled);
490		else {
491			bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
492			  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
493			if (!bled && (var != 0x00000001) && (var != 0x3803000F))
494				bled = -EINVAL;
495		}
496		if (bled && (bled != -ETIMEDOUT))
497			bled = aac_adapter_sync_cmd(dev, IOP_RESET,
498			  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
499
500		if (bled && (bled != -ETIMEDOUT))
501			return -EINVAL;
502	}
503	if (bled && (var == 0x3803000F)) { /* USE_OTHER_METHOD */
504		rx_writel(dev, MUnit.reserved2, 3);
505		msleep(5000); /* Delay 5 seconds */
506		var = 0x00000001;
507	}
508	if (bled && (var != 0x00000001))
509		return -EINVAL;
510	ssleep(5);
511	if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
512		return -ENODEV;
513	if (startup_timeout < 300)
514		startup_timeout = 300;
515	return 0;
516}
517
518/**
519 *	aac_rx_select_comm	-	Select communications method
520 *	@dev: Adapter
521 *	@comm: communications method
522 */
523
524int aac_rx_select_comm(struct aac_dev *dev, int comm)
525{
526	switch (comm) {
527	case AAC_COMM_PRODUCER:
528		dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
529		dev->a_ops.adapter_intr = aac_rx_intr_producer;
530		dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
531		break;
532	case AAC_COMM_MESSAGE:
533		dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
534		dev->a_ops.adapter_intr = aac_rx_intr_message;
535		dev->a_ops.adapter_deliver = aac_rx_deliver_message;
536		break;
537	default:
538		return 1;
539	}
540	return 0;
541}
542
543/**
544 *	aac_rx_init	-	initialize an i960 based AAC card
545 *	@dev: device to configure
546 *
547 *	Allocate and set up resources for the i960 based AAC variants. The
548 *	device_interface in the commregion will be allocated and linked
549 *	to the comm region.
550 */
551
552int _aac_rx_init(struct aac_dev *dev)
553{
554	unsigned long start;
555	unsigned long status;
556	int restart = 0;
557	int instance = dev->id;
558	const char * name = dev->name;
559
560	if (aac_adapter_ioremap(dev, dev->base_size)) {
561		printk(KERN_WARNING "%s: unable to map adapter.\n", name);
562		goto error_iounmap;
563	}
564
565	/* Failure to reset here is an option ... */
566	dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
567	dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
568	dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
569	if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
570	  !aac_rx_restart_adapter(dev, 0))
571		/* Make sure the Hardware FIFO is empty */
572		while ((++restart < 512) &&
573		  (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
574	/*
575	 *	Check to see if the board panic'd while booting.
576	 */
577	status = rx_readl(dev, MUnit.OMRx[0]);
578	if (status & KERNEL_PANIC) {
579		if (aac_rx_restart_adapter(dev, aac_rx_check_health(dev)))
580			goto error_iounmap;
581		++restart;
582	}
583	/*
584	 *	Check to see if the board failed any self tests.
585	 */
586	status = rx_readl(dev, MUnit.OMRx[0]);
587	if (status & SELF_TEST_FAILED) {
588		printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
589		goto error_iounmap;
590	}
591	/*
592	 *	Check to see if the monitor panic'd while booting.
593	 */
594	if (status & MONITOR_PANIC) {
595		printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
596		goto error_iounmap;
597	}
598	start = jiffies;
599	/*
600	 *	Wait for the adapter to be up and running. Wait up to 3 minutes
601	 */
602	while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
603	{
604		if ((restart &&
605		  (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
606		  time_after(jiffies, start+HZ*startup_timeout)) {
607			printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
608					dev->name, instance, status);
609			goto error_iounmap;
610		}
611		if (!restart &&
612		  ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
613		  time_after(jiffies, start + HZ *
614		  ((startup_timeout > 60)
615		    ? (startup_timeout - 60)
616		    : (startup_timeout / 2))))) {
617			if (likely(!aac_rx_restart_adapter(dev, aac_rx_check_health(dev))))
618				start = jiffies;
619			++restart;
620		}
621		msleep(1);
622	}
623	if (restart && aac_commit)
624		aac_commit = 1;
625	/*
626	 *	Fill in the common function dispatch table.
627	 */
628	dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
629	dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
630	dev->a_ops.adapter_notify = aac_rx_notify_adapter;
631	dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
632	dev->a_ops.adapter_check_health = aac_rx_check_health;
633	dev->a_ops.adapter_restart = aac_rx_restart_adapter;
634
635	/*
636	 *	First clear out all interrupts.  Then enable the one's that we
637	 *	can handle.
638	 */
639	aac_adapter_comm(dev, AAC_COMM_PRODUCER);
640	aac_adapter_disable_int(dev);
641	rx_writel(dev, MUnit.ODR, 0xffffffff);
642	aac_adapter_enable_int(dev);
643
644	if (aac_init_adapter(dev) == NULL)
645		goto error_iounmap;
646	aac_adapter_comm(dev, dev->comm_interface);
647	dev->sync_mode = 0;	/* sync. mode not supported */
648	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
649	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
650			IRQF_SHARED, "aacraid", dev) < 0) {
651		if (dev->msi)
652			pci_disable_msi(dev->pdev);
653		printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
654			name, instance);
655		goto error_iounmap;
656	}
657	dev->dbg_base = dev->base_start;
658	dev->dbg_base_mapped = dev->base;
659	dev->dbg_size = dev->base_size;
660
661	aac_adapter_enable_int(dev);
662	/*
663	 *	Tell the adapter that all is configured, and it can
664	 * start accepting requests
665	 */
666	aac_rx_start_adapter(dev);
667
668	return 0;
669
670error_iounmap:
671
672	return -1;
673}
674
675int aac_rx_init(struct aac_dev *dev)
676{
677	/*
678	 *	Fill in the function dispatch table.
679	 */
680	dev->a_ops.adapter_ioremap = aac_rx_ioremap;
681	dev->a_ops.adapter_comm = aac_rx_select_comm;
682
683	return _aac_rx_init(dev);
684}
685