Merge branch 'dma' into devel
[linux-2.6] / drivers / scsi / aacraid / rx.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) 2000-2007 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
43 #include <scsi/scsi_host.h>
44
45 #include "aacraid.h"
46
47 static 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
86 static irqreturn_t aac_rx_intr_message(int irq, void *dev_id)
87 {
88         struct aac_dev *dev = dev_id;
89         u32 Index = rx_readl(dev, MUnit.OutboundQueue);
90         if (unlikely(Index == 0xFFFFFFFFL))
91                 Index = rx_readl(dev, MUnit.OutboundQueue);
92         if (likely(Index != 0xFFFFFFFFL)) {
93                 do {
94                         if (unlikely(aac_intr_normal(dev, Index))) {
95                                 rx_writel(dev, MUnit.OutboundQueue, Index);
96                                 rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespReady);
97                         }
98                         Index = rx_readl(dev, MUnit.OutboundQueue);
99                 } while (Index != 0xFFFFFFFFL);
100                 return IRQ_HANDLED;
101         }
102         return IRQ_NONE;
103 }
104
105 /**
106  *      aac_rx_disable_interrupt        -       Disable interrupts
107  *      @dev: Adapter
108  */
109
110 static void aac_rx_disable_interrupt(struct aac_dev *dev)
111 {
112         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
113 }
114
115 /**
116  *      aac_rx_enable_interrupt_producer        -       Enable interrupts
117  *      @dev: Adapter
118  */
119
120 static void aac_rx_enable_interrupt_producer(struct aac_dev *dev)
121 {
122         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
123 }
124
125 /**
126  *      aac_rx_enable_interrupt_message -       Enable interrupts
127  *      @dev: Adapter
128  */
129
130 static void aac_rx_enable_interrupt_message(struct aac_dev *dev)
131 {
132         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xf7);
133 }
134
135 /**
136  *      rx_sync_cmd     -       send a command and wait
137  *      @dev: Adapter
138  *      @command: Command to execute
139  *      @p1: first parameter
140  *      @ret: adapter status
141  *
142  *      This routine will send a synchronous command to the adapter and wait 
143  *      for its completion.
144  */
145
146 static int rx_sync_cmd(struct aac_dev *dev, u32 command,
147         u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
148         u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
149 {
150         unsigned long start;
151         int ok;
152         /*
153          *      Write the command into Mailbox 0
154          */
155         writel(command, &dev->IndexRegs->Mailbox[0]);
156         /*
157          *      Write the parameters into Mailboxes 1 - 6
158          */
159         writel(p1, &dev->IndexRegs->Mailbox[1]);
160         writel(p2, &dev->IndexRegs->Mailbox[2]);
161         writel(p3, &dev->IndexRegs->Mailbox[3]);
162         writel(p4, &dev->IndexRegs->Mailbox[4]);
163         /*
164          *      Clear the synch command doorbell to start on a clean slate.
165          */
166         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
167         /*
168          *      Disable doorbell interrupts
169          */
170         rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
171         /*
172          *      Force the completion of the mask register write before issuing
173          *      the interrupt.
174          */
175         rx_readb (dev, MUnit.OIMR);
176         /*
177          *      Signal that there is a new synch command
178          */
179         rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0);
180
181         ok = 0;
182         start = jiffies;
183
184         /*
185          *      Wait up to 30 seconds
186          */
187         while (time_before(jiffies, start+30*HZ)) 
188         {
189                 udelay(5);      /* Delay 5 microseconds to let Mon960 get info. */
190                 /*
191                  *      Mon960 will set doorbell0 bit when it has completed the command.
192                  */
193                 if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) {
194                         /*
195                          *      Clear the doorbell.
196                          */
197                         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
198                         ok = 1;
199                         break;
200                 }
201                 /*
202                  *      Yield the processor in case we are slow 
203                  */
204                 msleep(1);
205         }
206         if (unlikely(ok != 1)) {
207                 /*
208                  *      Restore interrupt mask even though we timed out
209                  */
210                 aac_adapter_enable_int(dev);
211                 return -ETIMEDOUT;
212         }
213         /*
214          *      Pull the synch status from Mailbox 0.
215          */
216         if (status)
217                 *status = readl(&dev->IndexRegs->Mailbox[0]);
218         if (r1)
219                 *r1 = readl(&dev->IndexRegs->Mailbox[1]);
220         if (r2)
221                 *r2 = readl(&dev->IndexRegs->Mailbox[2]);
222         if (r3)
223                 *r3 = readl(&dev->IndexRegs->Mailbox[3]);
224         if (r4)
225                 *r4 = readl(&dev->IndexRegs->Mailbox[4]);
226         /*
227          *      Clear the synch command doorbell.
228          */
229         rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0);
230         /*
231          *      Restore interrupt mask
232          */
233         aac_adapter_enable_int(dev);
234         return 0;
235
236 }
237
238 /**
239  *      aac_rx_interrupt_adapter        -       interrupt adapter
240  *      @dev: Adapter
241  *
242  *      Send an interrupt to the i960 and breakpoint it.
243  */
244
245 static void aac_rx_interrupt_adapter(struct aac_dev *dev)
246 {
247         rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
248 }
249
250 /**
251  *      aac_rx_notify_adapter           -       send an event to the adapter
252  *      @dev: Adapter
253  *      @event: Event to send
254  *
255  *      Notify the i960 that something it probably cares about has
256  *      happened.
257  */
258
259 static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event)
260 {
261         switch (event) {
262
263         case AdapNormCmdQue:
264                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1);
265                 break;
266         case HostNormRespNotFull:
267                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4);
268                 break;
269         case AdapNormRespQue:
270                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2);
271                 break;
272         case HostNormCmdNotFull:
273                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3);
274                 break;
275         case HostShutdown:
276                 break;
277         case FastIo:
278                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6);
279                 break;
280         case AdapPrintfDone:
281                 rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5);
282                 break;
283         default:
284                 BUG();
285                 break;
286         }
287 }
288
289 /**
290  *      aac_rx_start_adapter            -       activate adapter
291  *      @dev:   Adapter
292  *
293  *      Start up processing on an i960 based AAC adapter
294  */
295
296 static void aac_rx_start_adapter(struct aac_dev *dev)
297 {
298         struct aac_init *init;
299
300         init = dev->init;
301         init->HostElapsedSeconds = cpu_to_le32(get_seconds());
302         // We can only use a 32 bit address here
303         rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
304           0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
305 }
306
307 /**
308  *      aac_rx_check_health
309  *      @dev: device to check if healthy
310  *
311  *      Will attempt to determine if the specified adapter is alive and
312  *      capable of handling requests, returning 0 if alive.
313  */
314 static int aac_rx_check_health(struct aac_dev *dev)
315 {
316         u32 status = rx_readl(dev, MUnit.OMRx[0]);
317
318         /*
319          *      Check to see if the board failed any self tests.
320          */
321         if (unlikely(status & SELF_TEST_FAILED))
322                 return -1;
323         /*
324          *      Check to see if the board panic'd.
325          */
326         if (unlikely(status & KERNEL_PANIC)) {
327                 char * buffer;
328                 struct POSTSTATUS {
329                         __le32 Post_Command;
330                         __le32 Post_Address;
331                 } * post;
332                 dma_addr_t paddr, baddr;
333                 int ret;
334
335                 if (likely((status & 0xFF000000L) == 0xBC000000L))
336                         return (status >> 16) & 0xFF;
337                 buffer = pci_alloc_consistent(dev->pdev, 512, &baddr);
338                 ret = -2;
339                 if (unlikely(buffer == NULL))
340                         return ret;
341                 post = pci_alloc_consistent(dev->pdev,
342                   sizeof(struct POSTSTATUS), &paddr);
343                 if (unlikely(post == NULL)) {
344                         pci_free_consistent(dev->pdev, 512, buffer, baddr);
345                         return ret;
346                 }
347                 memset(buffer, 0, 512);
348                 post->Post_Command = cpu_to_le32(COMMAND_POST_RESULTS);
349                 post->Post_Address = cpu_to_le32(baddr);
350                 rx_writel(dev, MUnit.IMRx[0], paddr);
351                 rx_sync_cmd(dev, COMMAND_POST_RESULTS, baddr, 0, 0, 0, 0, 0,
352                   NULL, NULL, NULL, NULL, NULL);
353                 pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
354                   post, paddr);
355                 if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
356                         ret = (buffer[2] <= '9') ? (buffer[2] - '0') : (buffer[2] - 'A' + 10);
357                         ret <<= 4;
358                         ret += (buffer[3] <= '9') ? (buffer[3] - '0') : (buffer[3] - 'A' + 10);
359                 }
360                 pci_free_consistent(dev->pdev, 512, buffer, baddr);
361                 return ret;
362         }
363         /*
364          *      Wait for the adapter to be up and running.
365          */
366         if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
367                 return -3;
368         /*
369          *      Everything is OK
370          */
371         return 0;
372 }
373
374 /**
375  *      aac_rx_deliver_producer
376  *      @fib: fib to issue
377  *
378  *      Will send a fib, returning 0 if successful.
379  */
380 int aac_rx_deliver_producer(struct fib * fib)
381 {
382         struct aac_dev *dev = fib->dev;
383         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
384         unsigned long qflags;
385         u32 Index;
386         unsigned long nointr = 0;
387
388         spin_lock_irqsave(q->lock, qflags);
389         aac_queue_get( dev, &Index, AdapNormCmdQueue, fib->hw_fib_va, 1, fib, &nointr);
390
391         q->numpending++;
392         *(q->headers.producer) = cpu_to_le32(Index + 1);
393         spin_unlock_irqrestore(q->lock, qflags);
394         if (!(nointr & aac_config.irq_mod))
395                 aac_adapter_notify(dev, AdapNormCmdQueue);
396
397         return 0;
398 }
399
400 /**
401  *      aac_rx_deliver_message
402  *      @fib: fib to issue
403  *
404  *      Will send a fib, returning 0 if successful.
405  */
406 static int aac_rx_deliver_message(struct fib * fib)
407 {
408         struct aac_dev *dev = fib->dev;
409         struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
410         unsigned long qflags;
411         u32 Index;
412         u64 addr;
413         volatile void __iomem *device;
414
415         unsigned long count = 10000000L; /* 50 seconds */
416         spin_lock_irqsave(q->lock, qflags);
417         q->numpending++;
418         spin_unlock_irqrestore(q->lock, qflags);
419         for(;;) {
420                 Index = rx_readl(dev, MUnit.InboundQueue);
421                 if (unlikely(Index == 0xFFFFFFFFL))
422                         Index = rx_readl(dev, MUnit.InboundQueue);
423                 if (likely(Index != 0xFFFFFFFFL))
424                         break;
425                 if (--count == 0) {
426                         spin_lock_irqsave(q->lock, qflags);
427                         q->numpending--;
428                         spin_unlock_irqrestore(q->lock, qflags);
429                         return -ETIMEDOUT;
430                 }
431                 udelay(5);
432         }
433         device = dev->base + Index;
434         addr = fib->hw_fib_pa;
435         writel((u32)(addr & 0xffffffff), device);
436         device += sizeof(u32);
437         writel((u32)(addr >> 32), device);
438         device += sizeof(u32);
439         writel(le16_to_cpu(fib->hw_fib_va->header.Size), device);
440         rx_writel(dev, MUnit.InboundQueue, Index);
441         return 0;
442 }
443
444 /**
445  *      aac_rx_ioremap
446  *      @size: mapping resize request
447  *
448  */
449 static int aac_rx_ioremap(struct aac_dev * dev, u32 size)
450 {
451         if (!size) {
452                 iounmap(dev->regs.rx);
453                 return 0;
454         }
455         dev->base = dev->regs.rx = ioremap(dev->scsi_host_ptr->base, size);
456         if (dev->base == NULL)
457                 return -1;
458         dev->IndexRegs = &dev->regs.rx->IndexRegs;
459         return 0;
460 }
461
462 static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
463 {
464         u32 var;
465
466         if (!(dev->supplement_adapter_info.SupportedOptions2 &
467           AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
468                 if (bled)
469                         printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
470                                 dev->name, dev->id, bled);
471                 else {
472                         bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
473                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
474                         if (!bled && (var != 0x00000001) && (var != 0x3803000F))
475                                 bled = -EINVAL;
476                 }
477                 if (bled && (bled != -ETIMEDOUT))
478                         bled = aac_adapter_sync_cmd(dev, IOP_RESET,
479                           0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
480
481                 if (bled && (bled != -ETIMEDOUT))
482                         return -EINVAL;
483         }
484         if (bled || (var == 0x3803000F)) { /* USE_OTHER_METHOD */
485                 rx_writel(dev, MUnit.reserved2, 3);
486                 msleep(5000); /* Delay 5 seconds */
487                 var = 0x00000001;
488         }
489         if (var != 0x00000001)
490                 return -EINVAL;
491         if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
492                 return -ENODEV;
493         if (startup_timeout < 300)
494                 startup_timeout = 300;
495         return 0;
496 }
497
498 /**
499  *      aac_rx_select_comm      -       Select communications method
500  *      @dev: Adapter
501  *      @comm: communications method
502  */
503
504 int aac_rx_select_comm(struct aac_dev *dev, int comm)
505 {
506         switch (comm) {
507         case AAC_COMM_PRODUCER:
508                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_producer;
509                 dev->a_ops.adapter_intr = aac_rx_intr_producer;
510                 dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
511                 break;
512         case AAC_COMM_MESSAGE:
513                 dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt_message;
514                 dev->a_ops.adapter_intr = aac_rx_intr_message;
515                 dev->a_ops.adapter_deliver = aac_rx_deliver_message;
516                 break;
517         default:
518                 return 1;
519         }
520         return 0;
521 }
522
523 /**
524  *      aac_rx_init     -       initialize an i960 based AAC card
525  *      @dev: device to configure
526  *
527  *      Allocate and set up resources for the i960 based AAC variants. The 
528  *      device_interface in the commregion will be allocated and linked 
529  *      to the comm region.
530  */
531
532 int _aac_rx_init(struct aac_dev *dev)
533 {
534         unsigned long start;
535         unsigned long status;
536         int restart = 0;
537         int instance = dev->id;
538         const char * name = dev->name;
539
540         if (aac_adapter_ioremap(dev, dev->base_size)) {
541                 printk(KERN_WARNING "%s: unable to map adapter.\n", name);
542                 goto error_iounmap;
543         }
544
545         /* Failure to reset here is an option ... */
546         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
547         dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt;
548         dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
549         if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
550           !aac_rx_restart_adapter(dev, 0))
551                 /* Make sure the Hardware FIFO is empty */
552                 while ((++restart < 512) &&
553                   (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
554         /*
555          *      Check to see if the board panic'd while booting.
556          */
557         status = rx_readl(dev, MUnit.OMRx[0]);
558         if (status & KERNEL_PANIC) {
559                 if (aac_rx_restart_adapter(dev, aac_rx_check_health(dev)))
560                         goto error_iounmap;
561                 ++restart;
562         }
563         /*
564          *      Check to see if the board failed any self tests.
565          */
566         status = rx_readl(dev, MUnit.OMRx[0]);
567         if (status & SELF_TEST_FAILED) {
568                 printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
569                 goto error_iounmap;
570         }
571         /*
572          *      Check to see if the monitor panic'd while booting.
573          */
574         if (status & MONITOR_PANIC) {
575                 printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
576                 goto error_iounmap;
577         }
578         start = jiffies;
579         /*
580          *      Wait for the adapter to be up and running. Wait up to 3 minutes
581          */
582         while (!((status = rx_readl(dev, MUnit.OMRx[0])) & KERNEL_UP_AND_RUNNING))
583         {
584                 if ((restart &&
585                   (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
586                   time_after(jiffies, start+HZ*startup_timeout)) {
587                         printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", 
588                                         dev->name, instance, status);
589                         goto error_iounmap;
590                 }
591                 if (!restart &&
592                   ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
593                   time_after(jiffies, start + HZ *
594                   ((startup_timeout > 60)
595                     ? (startup_timeout - 60)
596                     : (startup_timeout / 2))))) {
597                         if (likely(!aac_rx_restart_adapter(dev, aac_rx_check_health(dev))))
598                                 start = jiffies;
599                         ++restart;
600                 }
601                 msleep(1);
602         }
603         if (restart && aac_commit)
604                 aac_commit = 1;
605         /*
606          *      Fill in the common function dispatch table.
607          */
608         dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
609         dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
610         dev->a_ops.adapter_notify = aac_rx_notify_adapter;
611         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
612         dev->a_ops.adapter_check_health = aac_rx_check_health;
613         dev->a_ops.adapter_restart = aac_rx_restart_adapter;
614
615         /*
616          *      First clear out all interrupts.  Then enable the one's that we
617          *      can handle.
618          */
619         aac_adapter_comm(dev, AAC_COMM_PRODUCER);
620         aac_adapter_disable_int(dev);
621         rx_writel(dev, MUnit.ODR, 0xffffffff);
622         aac_adapter_enable_int(dev);
623
624         if (aac_init_adapter(dev) == NULL)
625                 goto error_iounmap;
626         aac_adapter_comm(dev, dev->comm_interface);
627         dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
628         if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
629                         IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) {
630                 if (dev->msi)
631                         pci_disable_msi(dev->pdev);
632                 printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
633                         name, instance);
634                 goto error_iounmap;
635         }
636         aac_adapter_enable_int(dev);
637         /*
638          *      Tell the adapter that all is configured, and it can
639          * start accepting requests
640          */
641         aac_rx_start_adapter(dev);
642
643         return 0;
644
645 error_iounmap:
646
647         return -1;
648 }
649
650 int aac_rx_init(struct aac_dev *dev)
651 {
652         /*
653          *      Fill in the function dispatch table.
654          */
655         dev->a_ops.adapter_ioremap = aac_rx_ioremap;
656         dev->a_ops.adapter_comm = aac_rx_select_comm;
657
658         return _aac_rx_init(dev);
659 }