drivers/scsi/aacraid/sa.c - third_party/linux - Git at Google

 /*
  *	Adaptec AAC series RAID controller driver
  *	(c) Copyright 2001 Red Hat Inc.
  *
  * based on the old aacraid driver that is..
  * Adaptec aacraid device driver for Linux.
  *
  * Copyright (c) 2000-2010 Adaptec, Inc.
  *               2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  *		 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; see the file COPYING.  If not, write to
  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  * Module Name:
  *  sa.c
  *
  * Abstract: Drawbridge specific support functions
  *
  */

 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/spinlock.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/completion.h>
 #include <linux/time.h>
 #include <linux/interrupt.h>

 #include <scsi/scsi_host.h>

 #include "aacraid.h"

 static irqreturn_t aac_sa_intr(int irq, void *dev_id)
 {
 	struct aac_dev *dev = dev_id;
 	unsigned short intstat, mask;

 	intstat = sa_readw(dev, DoorbellReg_p);
 	/*
 	 *	Read mask and invert because drawbridge is reversed.
 	 *	This allows us to only service interrupts that have been enabled.
 	 */
 	mask = ~(sa_readw(dev, SaDbCSR.PRISETIRQMASK));

 	/* Check to see if this is our interrupt.  If it isn't just return */

 	if (intstat & mask) {
 		if (intstat & PrintfReady) {
 			aac_printf(dev, sa_readl(dev, Mailbox5));
 			sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
 			sa_writew(dev, DoorbellReg_s, PrintfDone);
 		} else if (intstat & DOORBELL_1) {	// dev -> Host Normal Command Ready
 			sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
 			aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
 		} else if (intstat & DOORBELL_2) {	// dev -> Host Normal Response Ready
 			sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
 			aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
 		} else if (intstat & DOORBELL_3) {	// dev -> Host Normal Command Not Full
 			sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
 		} else if (intstat & DOORBELL_4) {	// dev -> Host Normal Response Not Full
 			sa_writew(dev, DoorbellClrReg_p, DOORBELL_4);
 		}
 		return IRQ_HANDLED;
 	}
 	return IRQ_NONE;
 }

 /**
  *	aac_sa_disable_interrupt	-	disable interrupt
  *	@dev: Which adapter to enable.
  */

 static void aac_sa_disable_interrupt (struct aac_dev *dev)
 {
 	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
 }

 /**
  *	aac_sa_enable_interrupt	-	enable interrupt
  *	@dev: Which adapter to enable.
  */

 static void aac_sa_enable_interrupt (struct aac_dev *dev)
 {
 	sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 |
 				DOORBELL_2 | DOORBELL_3 | DOORBELL_4));
 }

 /**
  *	aac_sa_notify_adapter		-	handle adapter notification
  *	@dev:	Adapter that notification is for
  *	@event:	Event to notidy
  *
  *	Notify the adapter of an event
  */

 static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
 {
 	switch (event) {

 	case AdapNormCmdQue:
 		sa_writew(dev, DoorbellReg_s,DOORBELL_1);
 		break;
 	case HostNormRespNotFull:
 		sa_writew(dev, DoorbellReg_s,DOORBELL_4);
 		break;
 	case AdapNormRespQue:
 		sa_writew(dev, DoorbellReg_s,DOORBELL_2);
 		break;
 	case HostNormCmdNotFull:
 		sa_writew(dev, DoorbellReg_s,DOORBELL_3);
 		break;
 	case HostShutdown:
 		/*
 		sa_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, 0, 0,
 		NULL, NULL, NULL, NULL, NULL);
 		*/
 		break;
 	case FastIo:
 		sa_writew(dev, DoorbellReg_s,DOORBELL_6);
 		break;
 	case AdapPrintfDone:
 		sa_writew(dev, DoorbellReg_s,DOORBELL_5);
 		break;
 	default:
 		BUG();
 		break;
 	}
 }


 /**
  *	sa_sync_cmd	-	send a command and wait
  *	@dev: Adapter
  *	@command: Command to execute
  *	@p1: first parameter
  *	@ret: adapter status
  *
  *	This routine will send a synchronous command to the adapter and wait
  *	for its	completion.
  */

 static int sa_sync_cmd(struct aac_dev *dev, u32 command,
 		u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
 		u32 *ret, u32 *r1, u32 *r2, u32 *r3, u32 *r4)
 {
 	unsigned long start;
  	int ok;
 	/*
 	 *	Write the Command into Mailbox 0
 	 */
 	sa_writel(dev, Mailbox0, command);
 	/*
 	 *	Write the parameters into Mailboxes 1 - 4
 	 */
 	sa_writel(dev, Mailbox1, p1);
 	sa_writel(dev, Mailbox2, p2);
 	sa_writel(dev, Mailbox3, p3);
 	sa_writel(dev, Mailbox4, p4);

 	/*
 	 *	Clear the synch command doorbell to start on a clean slate.
 	 */
 	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
 	/*
 	 *	Signal that there is a new synch command
 	 */
 	sa_writew(dev, DoorbellReg_s, DOORBELL_0);

 	ok = 0;
 	start = jiffies;

 	while(time_before(jiffies, start+30*HZ))
 	{
 		/*
 		 *	Delay 5uS so that the monitor gets access
 		 */
 		udelay(5);
 		/*
 		 *	Mon110 will set doorbell0 bit when it has
 		 *	completed the command.
 		 */
 		if(sa_readw(dev, DoorbellReg_p) & DOORBELL_0)  {
 			ok = 1;
 			break;
 		}
 		msleep(1);
 	}

 	if (ok != 1)
 		return -ETIMEDOUT;
 	/*
 	 *	Clear the synch command doorbell.
 	 */
 	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
 	/*
 	 *	Pull the synch status from Mailbox 0.
 	 */
 	if (ret)
 		*ret = sa_readl(dev, Mailbox0);
 	if (r1)
 		*r1 = sa_readl(dev, Mailbox1);
 	if (r2)
 		*r2 = sa_readl(dev, Mailbox2);
 	if (r3)
 		*r3 = sa_readl(dev, Mailbox3);
 	if (r4)
 		*r4 = sa_readl(dev, Mailbox4);
 	return 0;
 }

 /**
  *	aac_sa_interrupt_adapter	-	interrupt an adapter
  *	@dev: Which adapter to enable.
  *
  *	Breakpoint an adapter.
  */

 static void aac_sa_interrupt_adapter (struct aac_dev *dev)
 {
 	sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
 			NULL, NULL, NULL, NULL, NULL);
 }

 /**
  *	aac_sa_start_adapter		-	activate adapter
  *	@dev:	Adapter
  *
  *	Start up processing on an ARM based AAC adapter
  */

 static void aac_sa_start_adapter(struct aac_dev *dev)
 {
 	union aac_init *init;
 	/*
 	 * Fill in the remaining pieces of the init.
 	 */
 	init = dev->init;
 	init->r7.host_elapsed_seconds = cpu_to_le32(get_seconds());
 	/* We can only use a 32 bit address here */
 	sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
 			(u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
 			NULL, NULL, NULL, NULL, NULL);
 }

 static int aac_sa_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
 {
 	return -EINVAL;
 }

 /**
  *	aac_sa_check_health
  *	@dev: device to check if healthy
  *
  *	Will attempt to determine if the specified adapter is alive and
  *	capable of handling requests, returning 0 if alive.
  */
 static int aac_sa_check_health(struct aac_dev *dev)
 {
 	long status = sa_readl(dev, Mailbox7);

 	/*
 	 *	Check to see if the board failed any self tests.
 	 */
 	if (status & SELF_TEST_FAILED)
 		return -1;
 	/*
 	 *	Check to see if the board panic'd while booting.
 	 */
 	if (status & KERNEL_PANIC)
 		return -2;
 	/*
 	 *	Wait for the adapter to be up and running. Wait up to 3 minutes
 	 */
 	if (!(status & KERNEL_UP_AND_RUNNING))
 		return -3;
 	/*
 	 *	Everything is OK
 	 */
 	return 0;
 }

 /**
  *	aac_sa_ioremap
  *	@size: mapping resize request
  *
  */
 static int aac_sa_ioremap(struct aac_dev * dev, u32 size)
 {
 	if (!size) {
 		iounmap(dev->regs.sa);
 		return 0;
 	}
 	dev->base = dev->regs.sa = ioremap(dev->base_start, size);
 	return (dev->base == NULL) ? -1 : 0;
 }

 /**
  *	aac_sa_init	-	initialize an ARM based AAC card
  *	@dev: device to configure
  *
  *	Allocate and set up resources for the ARM based AAC variants. The
  *	device_interface in the commregion will be allocated and linked
  *	to the comm region.
  */

 int aac_sa_init(struct aac_dev *dev)
 {
 	unsigned long start;
 	unsigned long status;
 	int instance;
 	const char *name;

 	instance = dev->id;
 	name     = dev->name;

 	/*
 	 *	Fill in the function dispatch table.
 	 */

 	dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
 	dev->a_ops.adapter_enable_int = aac_sa_enable_interrupt;
 	dev->a_ops.adapter_notify = aac_sa_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_sa_check_health;
 	dev->a_ops.adapter_restart = aac_sa_restart_adapter;
 	dev->a_ops.adapter_start = aac_sa_start_adapter;
 	dev->a_ops.adapter_intr = aac_sa_intr;
 	dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
 	dev->a_ops.adapter_ioremap = aac_sa_ioremap;

 	if (aac_sa_ioremap(dev, dev->base_size)) {
 		printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 		goto error_iounmap;
 	}

 	/*
 	 *	Check to see if the board failed any self tests.
 	 */
 	if (sa_readl(dev, Mailbox7) & SELF_TEST_FAILED) {
 		printk(KERN_WARNING "%s%d: adapter self-test failed.\n", name, instance);
 		goto error_iounmap;
 	}
 	/*
 	 *	Check to see if the board panic'd while booting.
 	 */
 	if (sa_readl(dev, Mailbox7) & KERNEL_PANIC) {
 		printk(KERN_WARNING "%s%d: adapter kernel panic'd.\n", name, instance);
 		goto error_iounmap;
 	}
 	start = jiffies;
 	/*
 	 *	Wait for the adapter to be up and running. Wait up to 3 minutes.
 	 */
 	while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) {
 		if (time_after(jiffies, start+startup_timeout*HZ)) {
 			status = sa_readl(dev, Mailbox7);
 			printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %lx.\n",
 					name, instance, status);
 			goto error_iounmap;
 		}
 		msleep(1);
 	}

 	/*
 	 *	First clear out all interrupts.  Then enable the one's that
 	 *	we can handle.
 	 */
 	aac_adapter_disable_int(dev);
 	aac_adapter_enable_int(dev);

 	if(aac_init_adapter(dev) == NULL)
 		goto error_irq;
 	dev->sync_mode = 0;	/* sync. mode not supported */
 	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
 			IRQF_SHARED, "aacraid", (void *)dev) < 0) {
 		printk(KERN_WARNING "%s%d: Interrupt unavailable.\n",
 			name, instance);
 		goto error_iounmap;
 	}
 	dev->dbg_base = dev->base_start;
 	dev->dbg_base_mapped = dev->base;
 	dev->dbg_size = dev->base_size;

 	aac_adapter_enable_int(dev);

 	/*
 	 *	Tell the adapter that all is configure, and it can start
 	 *	accepting requests
 	 */
 	aac_sa_start_adapter(dev);
 	return 0;

 error_irq:
 	aac_sa_disable_interrupt(dev);
 	free_irq(dev->pdev->irq, (void *)dev);

 error_iounmap:

 	return -1;
 }
	/*
	* Adaptec AAC series RAID controller driver
	* (c) Copyright 2001 Red Hat Inc.
	*
	* based on the old aacraid driver that is..
	* Adaptec aacraid device driver for Linux.
	*
	* Copyright (c) 2000-2010 Adaptec, Inc.
	* 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
	* 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2, or (at your option)
	* any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; see the file COPYING. If not, write to
	* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
	*
	* Module Name:
	* sa.c
	*
	* Abstract: Drawbridge specific support functions
	*
	*/

	#include <linux/kernel.h>
	#include <linux/init.h>
	#include <linux/types.h>
	#include <linux/pci.h>
	#include <linux/spinlock.h>
	#include <linux/blkdev.h>
	#include <linux/delay.h>
	#include <linux/completion.h>
	#include <linux/time.h>
	#include <linux/interrupt.h>

	#include <scsi/scsi_host.h>

	#include "aacraid.h"

	static irqreturn_t aac_sa_intr(int irq, void *dev_id)
	{
	struct aac_dev *dev = dev_id;
	unsigned short intstat, mask;

	intstat = sa_readw(dev, DoorbellReg_p);
	/*
	* Read mask and invert because drawbridge is reversed.
	* This allows us to only service interrupts that have been enabled.
	*/
	mask = ~(sa_readw(dev, SaDbCSR.PRISETIRQMASK));

	/* Check to see if this is our interrupt. If it isn't just return */

	if (intstat & mask) {
	if (intstat & PrintfReady) {
	aac_printf(dev, sa_readl(dev, Mailbox5));
	sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
	sa_writew(dev, DoorbellReg_s, PrintfDone);
	} else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready
	sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
	aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
	} else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready
	sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
	aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
	} else if (intstat & DOORBELL_3) { // dev -> Host Normal Command Not Full
	sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
	} else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full
	sa_writew(dev, DoorbellClrReg_p, DOORBELL_4);
	}
	return IRQ_HANDLED;
	}
	return IRQ_NONE;
	}

	/**
	* aac_sa_disable_interrupt - disable interrupt
	* @dev: Which adapter to enable.
	*/

	static void aac_sa_disable_interrupt (struct aac_dev *dev)
	{
	sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
	}

	/**
	* aac_sa_enable_interrupt - enable interrupt
	* @dev: Which adapter to enable.
	*/

	static void aac_sa_enable_interrupt (struct aac_dev *dev)
	{
	sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady \| DOORBELL_1 \|
	DOORBELL_2 \| DOORBELL_3 \| DOORBELL_4));
	}

	/**
	* aac_sa_notify_adapter - handle adapter notification
	* @dev: Adapter that notification is for
	* @event: Event to notidy
	*
	* Notify the adapter of an event
	*/

	static void aac_sa_notify_adapter(struct aac_dev *dev, u32 event)
	{
	switch (event) {

	case AdapNormCmdQue:
	sa_writew(dev, DoorbellReg_s,DOORBELL_1);
	break;
	case HostNormRespNotFull:
	sa_writew(dev, DoorbellReg_s,DOORBELL_4);
	break;
	case AdapNormRespQue:
	sa_writew(dev, DoorbellReg_s,DOORBELL_2);
	break;
	case HostNormCmdNotFull:
	sa_writew(dev, DoorbellReg_s,DOORBELL_3);
	break;
	case HostShutdown:
	/*
	sa_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, 0, 0,
	NULL, NULL, NULL, NULL, NULL);
	*/
	break;
	case FastIo:
	sa_writew(dev, DoorbellReg_s,DOORBELL_6);
	break;
	case AdapPrintfDone:
	sa_writew(dev, DoorbellReg_s,DOORBELL_5);
	break;
	default:
	BUG();
	break;
	}
	}


	/**
	* sa_sync_cmd - send a command and wait
	* @dev: Adapter
	* @command: Command to execute
	* @p1: first parameter
	* @ret: adapter status
	*
	* This routine will send a synchronous command to the adapter and wait
	* for its completion.
	*/

	static int sa_sync_cmd(struct aac_dev *dev, u32 command,
	u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
	u32 ret, u32 r1, u32 r2, u32 r3, u32 *r4)
	{
	unsigned long start;
	int ok;
	/*
	* Write the Command into Mailbox 0
	*/
	sa_writel(dev, Mailbox0, command);
	/*
	* Write the parameters into Mailboxes 1 - 4
	*/
	sa_writel(dev, Mailbox1, p1);
	sa_writel(dev, Mailbox2, p2);
	sa_writel(dev, Mailbox3, p3);
	sa_writel(dev, Mailbox4, p4);

	/*
	* Clear the synch command doorbell to start on a clean slate.
	*/
	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
	/*
	* Signal that there is a new synch command
	*/
	sa_writew(dev, DoorbellReg_s, DOORBELL_0);

	ok = 0;
	start = jiffies;

	while(time_before(jiffies, start+30*HZ))
	{
	/*
	* Delay 5uS so that the monitor gets access
	*/
	udelay(5);
	/*
	* Mon110 will set doorbell0 bit when it has
	* completed the command.
	*/
	if(sa_readw(dev, DoorbellReg_p) & DOORBELL_0) {
	ok = 1;
	break;
	}
	msleep(1);
	}

	if (ok != 1)
	return -ETIMEDOUT;
	/*
	* Clear the synch command doorbell.
	*/
	sa_writew(dev, DoorbellClrReg_p, DOORBELL_0);
	/*
	* Pull the synch status from Mailbox 0.
	*/
	if (ret)
	*ret = sa_readl(dev, Mailbox0);
	if (r1)
	*r1 = sa_readl(dev, Mailbox1);
	if (r2)
	*r2 = sa_readl(dev, Mailbox2);
	if (r3)
	*r3 = sa_readl(dev, Mailbox3);
	if (r4)
	*r4 = sa_readl(dev, Mailbox4);
	return 0;
	}

	/**
	* aac_sa_interrupt_adapter - interrupt an adapter
	* @dev: Which adapter to enable.
	*
	* Breakpoint an adapter.
	*/

	static void aac_sa_interrupt_adapter (struct aac_dev *dev)
	{
	sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
	NULL, NULL, NULL, NULL, NULL);
	}

	/**
	* aac_sa_start_adapter - activate adapter
	* @dev: Adapter
	*
	* Start up processing on an ARM based AAC adapter
	*/

	static void aac_sa_start_adapter(struct aac_dev *dev)
	{
	union aac_init *init;
	/*
	* Fill in the remaining pieces of the init.
	*/
	init = dev->init;
	init->r7.host_elapsed_seconds = cpu_to_le32(get_seconds());
	/* We can only use a 32 bit address here */
	sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
	(u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
	NULL, NULL, NULL, NULL, NULL);
	}

	static int aac_sa_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type)
	{
	return -EINVAL;
	}

	/**
	* aac_sa_check_health
	* @dev: device to check if healthy
	*
	* Will attempt to determine if the specified adapter is alive and
	* capable of handling requests, returning 0 if alive.
	*/
	static int aac_sa_check_health(struct aac_dev *dev)
	{
	long status = sa_readl(dev, Mailbox7);

	/*
	* Check to see if the board failed any self tests.
	*/
	if (status & SELF_TEST_FAILED)
	return -1;
	/*
	* Check to see if the board panic'd while booting.
	*/
	if (status & KERNEL_PANIC)
	return -2;
	/*
	* Wait for the adapter to be up and running. Wait up to 3 minutes
	*/
	if (!(status & KERNEL_UP_AND_RUNNING))
	return -3;
	/*
	* Everything is OK
	*/
	return 0;
	}

	/**
	* aac_sa_ioremap
	* @size: mapping resize request
	*
	*/
	static int aac_sa_ioremap(struct aac_dev * dev, u32 size)
	{
	if (!size) {
	iounmap(dev->regs.sa);
	return 0;
	}
	dev->base = dev->regs.sa = ioremap(dev->base_start, size);
	return (dev->base == NULL) ? -1 : 0;
	}

	/**
	* aac_sa_init - initialize an ARM based AAC card
	* @dev: device to configure
	*
	* Allocate and set up resources for the ARM based AAC variants. The
	* device_interface in the commregion will be allocated and linked
	* to the comm region.
	*/

	int aac_sa_init(struct aac_dev *dev)
	{
	unsigned long start;
	unsigned long status;
	int instance;
	const char *name;

	instance = dev->id;
	name = dev->name;

	/*
	* Fill in the function dispatch table.
	*/

	dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
	dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
	dev->a_ops.adapter_enable_int = aac_sa_enable_interrupt;
	dev->a_ops.adapter_notify = aac_sa_notify_adapter;
	dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
	dev->a_ops.adapter_check_health = aac_sa_check_health;
	dev->a_ops.adapter_restart = aac_sa_restart_adapter;
	dev->a_ops.adapter_start = aac_sa_start_adapter;
	dev->a_ops.adapter_intr = aac_sa_intr;
	dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
	dev->a_ops.adapter_ioremap = aac_sa_ioremap;

	if (aac_sa_ioremap(dev, dev->base_size)) {
	printk(KERN_WARNING "%s: unable to map adapter.\n", name);
	goto error_iounmap;
	}

	/*
	* Check to see if the board failed any self tests.
	*/
	if (sa_readl(dev, Mailbox7) & SELF_TEST_FAILED) {
	printk(KERN_WARNING "%s%d: adapter self-test failed.\n", name, instance);
	goto error_iounmap;
	}
	/*
	* Check to see if the board panic'd while booting.
	*/
	if (sa_readl(dev, Mailbox7) & KERNEL_PANIC) {
	printk(KERN_WARNING "%s%d: adapter kernel panic'd.\n", name, instance);
	goto error_iounmap;
	}
	start = jiffies;
	/*
	* Wait for the adapter to be up and running. Wait up to 3 minutes.
	*/
	while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) {
	if (time_after(jiffies, start+startup_timeout*HZ)) {
	status = sa_readl(dev, Mailbox7);
	printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %lx.\n",
	name, instance, status);
	goto error_iounmap;
	}
	msleep(1);
	}

	/*
	* First clear out all interrupts. Then enable the one's that
	* we can handle.
	*/
	aac_adapter_disable_int(dev);
	aac_adapter_enable_int(dev);

	if(aac_init_adapter(dev) == NULL)
	goto error_irq;
	dev->sync_mode = 0; /* sync. mode not supported */
	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
	IRQF_SHARED, "aacraid", (void *)dev) < 0) {
	printk(KERN_WARNING "%s%d: Interrupt unavailable.\n",
	name, instance);
	goto error_iounmap;
	}
	dev->dbg_base = dev->base_start;
	dev->dbg_base_mapped = dev->base;
	dev->dbg_size = dev->base_size;

	aac_adapter_enable_int(dev);

	/*
	* Tell the adapter that all is configure, and it can start
	* accepting requests
	*/
	aac_sa_start_adapter(dev);
	return 0;

	error_irq:
	aac_sa_disable_interrupt(dev);
	free_irq(dev->pdev->irq, (void *)dev);

	error_iounmap:

	return -1;
	}