aachba.c 70.4 KB
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/*
 *	Adaptec AAC series RAID controller driver
 *	(c) Copyright 2001 Red Hat Inc.	<alan@redhat.com>
 *
 * based on the old aacraid driver that is..
 * Adaptec aacraid device driver for Linux.
 *
 * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.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.
 *
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/blkdev.h>
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#include <linux/dma-mapping.h>
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#include <asm/semaphore.h>
#include <asm/uaccess.h>

#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>

#include "aacraid.h"

/* values for inqd_pdt: Peripheral device type in plain English */
#define	INQD_PDT_DA	0x00	/* Direct-access (DISK) device */
#define	INQD_PDT_PROC	0x03	/* Processor device */
#define	INQD_PDT_CHNGR	0x08	/* Changer (jukebox, scsi2) */
#define	INQD_PDT_COMM	0x09	/* Communication device (scsi2) */
#define	INQD_PDT_NOLUN2 0x1f	/* Unknown Device (scsi2) */
#define	INQD_PDT_NOLUN	0x7f	/* Logical Unit Not Present */

#define	INQD_PDT_DMASK	0x1F	/* Peripheral Device Type Mask */
#define	INQD_PDT_QMASK	0xE0	/* Peripheral Device Qualifer Mask */

/*
 *	Sense codes
 */
 
#define SENCODE_NO_SENSE                        0x00
#define SENCODE_END_OF_DATA                     0x00
#define SENCODE_BECOMING_READY                  0x04
#define SENCODE_INIT_CMD_REQUIRED               0x04
#define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
#define SENCODE_INVALID_COMMAND                 0x20
#define SENCODE_LBA_OUT_OF_RANGE                0x21
#define SENCODE_INVALID_CDB_FIELD               0x24
#define SENCODE_LUN_NOT_SUPPORTED               0x25
#define SENCODE_INVALID_PARAM_FIELD             0x26
#define SENCODE_PARAM_NOT_SUPPORTED             0x26
#define SENCODE_PARAM_VALUE_INVALID             0x26
#define SENCODE_RESET_OCCURRED                  0x29
#define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
#define SENCODE_INQUIRY_DATA_CHANGED            0x3F
#define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
#define SENCODE_DIAGNOSTIC_FAILURE              0x40
#define SENCODE_INTERNAL_TARGET_FAILURE         0x44
#define SENCODE_INVALID_MESSAGE_ERROR           0x49
#define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
#define SENCODE_OVERLAPPED_COMMAND              0x4E

/*
 *	Additional sense codes
 */
 
#define ASENCODE_NO_SENSE                       0x00
#define ASENCODE_END_OF_DATA                    0x05
#define ASENCODE_BECOMING_READY                 0x01
#define ASENCODE_INIT_CMD_REQUIRED              0x02
#define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
#define ASENCODE_INVALID_COMMAND                0x00
#define ASENCODE_LBA_OUT_OF_RANGE               0x00
#define ASENCODE_INVALID_CDB_FIELD              0x00
#define ASENCODE_LUN_NOT_SUPPORTED              0x00
#define ASENCODE_INVALID_PARAM_FIELD            0x00
#define ASENCODE_PARAM_NOT_SUPPORTED            0x01
#define ASENCODE_PARAM_VALUE_INVALID            0x02
#define ASENCODE_RESET_OCCURRED                 0x00
#define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
#define ASENCODE_INQUIRY_DATA_CHANGED           0x03
#define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
#define ASENCODE_DIAGNOSTIC_FAILURE             0x80
#define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
#define ASENCODE_INVALID_MESSAGE_ERROR          0x00
#define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
#define ASENCODE_OVERLAPPED_COMMAND             0x00

#define BYTE0(x) (unsigned char)(x)
#define BYTE1(x) (unsigned char)((x) >> 8)
#define BYTE2(x) (unsigned char)((x) >> 16)
#define BYTE3(x) (unsigned char)((x) >> 24)

/*------------------------------------------------------------------------------
 *              S T R U C T S / T Y P E D E F S
 *----------------------------------------------------------------------------*/
/* SCSI inquiry data */
struct inquiry_data {
	u8 inqd_pdt;	/* Peripheral qualifier | Peripheral Device Type  */
	u8 inqd_dtq;	/* RMB | Device Type Qualifier  */
	u8 inqd_ver;	/* ISO version | ECMA version | ANSI-approved version */
	u8 inqd_rdf;	/* AENC | TrmIOP | Response data format */
	u8 inqd_len;	/* Additional length (n-4) */
	u8 inqd_pad1[2];/* Reserved - must be zero */
	u8 inqd_pad2;	/* RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
	u8 inqd_vid[8];	/* Vendor ID */
	u8 inqd_pid[16];/* Product ID */
	u8 inqd_prl[4];	/* Product Revision Level */
};

/*
 *              M O D U L E   G L O B A L S
 */
 
static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
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static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
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static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
#ifdef AAC_DETAILED_STATUS_INFO
static char *aac_get_status_string(u32 status);
#endif

/*
 *	Non dasd selection is handled entirely in aachba now
 */	
 
static int nondasd = -1;
static int dacmode = -1;

static int commit = -1;

module_param(nondasd, int, 0);
MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
module_param(dacmode, int, 0);
MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
module_param(commit, int, 0);
MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on");

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int numacb = -1;
module_param(numacb, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control blocks (FIB) allocated. Valid\nvalues are 512 and down. Default is to use suggestion from Firmware.");

int acbsize = -1;
module_param(acbsize, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size. Valid values are 512,\n2048, 4096 and 8192. Default is to use suggestion from Firmware.");
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/**
 *	aac_get_config_status	-	check the adapter configuration
 *	@common: adapter to query
 *
 *	Query config status, and commit the configuration if needed.
 */
int aac_get_config_status(struct aac_dev *dev)
{
	int status = 0;
	struct fib * fibptr;

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	if (!(fibptr = aac_fib_alloc(dev)))
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		return -ENOMEM;

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	aac_fib_init(fibptr);
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	{
		struct aac_get_config_status *dinfo;
		dinfo = (struct aac_get_config_status *) fib_data(fibptr);

		dinfo->command = cpu_to_le32(VM_ContainerConfig);
		dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
		dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
	}

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	status = aac_fib_send(ContainerCommand,
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			    fibptr,
			    sizeof (struct aac_get_config_status),
			    FsaNormal,
			    1, 1,
			    NULL, NULL);
	if (status < 0 ) {
		printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
	} else {
		struct aac_get_config_status_resp *reply
		  = (struct aac_get_config_status_resp *) fib_data(fibptr);
		dprintk((KERN_WARNING
		  "aac_get_config_status: response=%d status=%d action=%d\n",
		  le32_to_cpu(reply->response),
		  le32_to_cpu(reply->status),
		  le32_to_cpu(reply->data.action)));
		if ((le32_to_cpu(reply->response) != ST_OK) ||
		     (le32_to_cpu(reply->status) != CT_OK) ||
		     (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
			printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
			status = -EINVAL;
		}
	}
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	aac_fib_complete(fibptr);
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	/* Send a CT_COMMIT_CONFIG to enable discovery of devices */
	if (status >= 0) {
		if (commit == 1) {
			struct aac_commit_config * dinfo;
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			aac_fib_init(fibptr);
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			dinfo = (struct aac_commit_config *) fib_data(fibptr);
	
			dinfo->command = cpu_to_le32(VM_ContainerConfig);
			dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
	
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			status = aac_fib_send(ContainerCommand,
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				    fibptr,
				    sizeof (struct aac_commit_config),
				    FsaNormal,
				    1, 1,
				    NULL, NULL);
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			aac_fib_complete(fibptr);
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		} else if (commit == 0) {
			printk(KERN_WARNING
			  "aac_get_config_status: Foreign device configurations are being ignored\n");
		}
	}
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	aac_fib_free(fibptr);
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	return status;
}

/**
 *	aac_get_containers	-	list containers
 *	@common: adapter to probe
 *
 *	Make a list of all containers on this controller
 */
int aac_get_containers(struct aac_dev *dev)
{
	struct fsa_dev_info *fsa_dev_ptr;
	u32 index; 
	int status = 0;
	struct fib * fibptr;
	unsigned instance;
	struct aac_get_container_count *dinfo;
	struct aac_get_container_count_resp *dresp;
	int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;

	instance = dev->scsi_host_ptr->unique_id;

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	if (!(fibptr = aac_fib_alloc(dev)))
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		return -ENOMEM;

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	aac_fib_init(fibptr);
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	dinfo = (struct aac_get_container_count *) fib_data(fibptr);
	dinfo->command = cpu_to_le32(VM_ContainerConfig);
	dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);

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	status = aac_fib_send(ContainerCommand,
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		    fibptr,
		    sizeof (struct aac_get_container_count),
		    FsaNormal,
		    1, 1,
		    NULL, NULL);
	if (status >= 0) {
		dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
		maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
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		aac_fib_complete(fibptr);
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	}

	if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
		maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
	fsa_dev_ptr = (struct fsa_dev_info *) kmalloc(
	  sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL);
	if (!fsa_dev_ptr) {
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		aac_fib_free(fibptr);
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		return -ENOMEM;
	}
	memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers);

	dev->fsa_dev = fsa_dev_ptr;
	dev->maximum_num_containers = maximum_num_containers;

	for (index = 0; index < dev->maximum_num_containers; index++) {
		struct aac_query_mount *dinfo;
		struct aac_mount *dresp;

		fsa_dev_ptr[index].devname[0] = '\0';

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		aac_fib_init(fibptr);
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		dinfo = (struct aac_query_mount *) fib_data(fibptr);

		dinfo->command = cpu_to_le32(VM_NameServe);
		dinfo->count = cpu_to_le32(index);
		dinfo->type = cpu_to_le32(FT_FILESYS);

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		status = aac_fib_send(ContainerCommand,
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				    fibptr,
				    sizeof (struct aac_query_mount),
				    FsaNormal,
				    1, 1,
				    NULL, NULL);
		if (status < 0 ) {
			printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
			break;
		}
		dresp = (struct aac_mount *)fib_data(fibptr);

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		if ((le32_to_cpu(dresp->status) == ST_OK) &&
		    (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
			dinfo->command = cpu_to_le32(VM_NameServe64);
			dinfo->count = cpu_to_le32(index);
			dinfo->type = cpu_to_le32(FT_FILESYS);

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			if (aac_fib_send(ContainerCommand,
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				    fibptr,
				    sizeof(struct aac_query_mount),
				    FsaNormal,
				    1, 1,
				    NULL, NULL) < 0)
				continue;
		} else
			dresp->mnt[0].capacityhigh = 0;

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		dprintk ((KERN_DEBUG
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		  "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%llu\n",
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		  (int)index, (int)le32_to_cpu(dresp->status),
		  (int)le32_to_cpu(dresp->mnt[0].vol),
		  (int)le32_to_cpu(dresp->mnt[0].state),
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		  ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
		    (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32)));
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		if ((le32_to_cpu(dresp->status) == ST_OK) &&
		    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
		    (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
			fsa_dev_ptr[index].valid = 1;
			fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol);
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			fsa_dev_ptr[index].size
			  = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
			    (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
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			if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
				    fsa_dev_ptr[index].ro = 1;
		}
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		aac_fib_complete(fibptr);
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		/*
		 *	If there are no more containers, then stop asking.
		 */
		if ((index + 1) >= le32_to_cpu(dresp->count)){
			break;
		}
	}
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	aac_fib_free(fibptr);
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	return status;
}

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static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
{
	void *buf;
	unsigned int transfer_len;
	struct scatterlist *sg = scsicmd->request_buffer;

	if (scsicmd->use_sg) {
		buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
		transfer_len = min(sg->length, len + offset);
	} else {
		buf = scsicmd->request_buffer;
		transfer_len = min(scsicmd->request_bufflen, len + offset);
	}

	memcpy(buf + offset, data, transfer_len - offset);

	if (scsicmd->use_sg) 
		kunmap_atomic(buf - sg->offset, KM_IRQ0);

}

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static void get_container_name_callback(void *context, struct fib * fibptr)
{
	struct aac_get_name_resp * get_name_reply;
	struct scsi_cmnd * scsicmd;

	scsicmd = (struct scsi_cmnd *) context;

	dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
	if (fibptr == NULL)
		BUG();

	get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
	/* Failure is irrelevant, using default value instead */
	if ((le32_to_cpu(get_name_reply->status) == CT_OK)
	 && (get_name_reply->data[0] != '\0')) {
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		char *sp = get_name_reply->data;
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		sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
		while (*sp == ' ')
			++sp;
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		if (*sp) {
			char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
			int count = sizeof(d);
			char *dp = d;
			do {
				*dp++ = (*sp) ? *sp++ : ' ';
			} while (--count > 0);
			aac_internal_transfer(scsicmd, d, 
			  offsetof(struct inquiry_data, inqd_pid), sizeof(d));
		}
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	}
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	scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;

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	aac_fib_complete(fibptr);
	aac_fib_free(fibptr);
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	scsicmd->scsi_done(scsicmd);
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}

/**
 *	aac_get_container_name	-	get container name, none blocking.
 */
static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid)
{
	int status;
	struct aac_get_name *dinfo;
	struct fib * cmd_fibcontext;
	struct aac_dev * dev;

	dev = (struct aac_dev *)scsicmd->device->host->hostdata;

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	if (!(cmd_fibcontext = aac_fib_alloc(dev)))
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		return -ENOMEM;

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	aac_fib_init(cmd_fibcontext);
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	dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);

	dinfo->command = cpu_to_le32(VM_ContainerConfig);
	dinfo->type = cpu_to_le32(CT_READ_NAME);
	dinfo->cid = cpu_to_le32(cid);
	dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));

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	status = aac_fib_send(ContainerCommand,
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		  cmd_fibcontext, 
		  sizeof (struct aac_get_name),
		  FsaNormal, 
		  0, 1, 
		  (fib_callback) get_container_name_callback, 
		  (void *) scsicmd);
	
	/*
	 *	Check that the command queued to the controller
	 */
	if (status == -EINPROGRESS) 
		return 0;
		
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	printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
	aac_fib_complete(cmd_fibcontext);
	aac_fib_free(cmd_fibcontext);
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	return -1;
}

/**
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 *	aac_probe_container		-	query a logical volume
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 *	@dev: device to query
 *	@cid: container identifier
 *
 *	Queries the controller about the given volume. The volume information
 *	is updated in the struct fsa_dev_info structure rather than returned.
 */
 
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int aac_probe_container(struct aac_dev *dev, int cid)
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{
	struct fsa_dev_info *fsa_dev_ptr;
	int status;
	struct aac_query_mount *dinfo;
	struct aac_mount *dresp;
	struct fib * fibptr;
	unsigned instance;

	fsa_dev_ptr = dev->fsa_dev;
	instance = dev->scsi_host_ptr->unique_id;

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	if (!(fibptr = aac_fib_alloc(dev)))
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		return -ENOMEM;

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	aac_fib_init(fibptr);
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	dinfo = (struct aac_query_mount *)fib_data(fibptr);

	dinfo->command = cpu_to_le32(VM_NameServe);
	dinfo->count = cpu_to_le32(cid);
	dinfo->type = cpu_to_le32(FT_FILESYS);

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	status = aac_fib_send(ContainerCommand,
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			    fibptr,
			    sizeof(struct aac_query_mount),
			    FsaNormal,
			    1, 1,
			    NULL, NULL);
	if (status < 0) {
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		printk(KERN_WARNING "aacraid: aac_probe_container query failed.\n");
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		goto error;
	}

	dresp = (struct aac_mount *) fib_data(fibptr);

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	if ((le32_to_cpu(dresp->status) == ST_OK) &&
	    (le32_to_cpu(dresp->mnt[0].vol) == CT_NONE)) {
		dinfo->command = cpu_to_le32(VM_NameServe64);
		dinfo->count = cpu_to_le32(cid);
		dinfo->type = cpu_to_le32(FT_FILESYS);

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		if (aac_fib_send(ContainerCommand,
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			    fibptr,
			    sizeof(struct aac_query_mount),
			    FsaNormal,
			    1, 1,
			    NULL, NULL) < 0)
			goto error;
	} else
		dresp->mnt[0].capacityhigh = 0;

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	if ((le32_to_cpu(dresp->status) == ST_OK) &&
	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
	    (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
		fsa_dev_ptr[cid].valid = 1;
		fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol);
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		fsa_dev_ptr[cid].size
		  = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
		    (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
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		if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
			fsa_dev_ptr[cid].ro = 1;
	}

error:
539 540
	aac_fib_complete(fibptr);
	aac_fib_free(fibptr);
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	return status;
}

/* Local Structure to set SCSI inquiry data strings */
struct scsi_inq {
	char vid[8];         /* Vendor ID */
	char pid[16];        /* Product ID */
	char prl[4];         /* Product Revision Level */
};

/**
 *	InqStrCopy	-	string merge
 *	@a:	string to copy from
 *	@b:	string to copy to
 *
 * 	Copy a String from one location to another
 *	without copying \0
 */

static void inqstrcpy(char *a, char *b)
{

	while(*a != (char)0) 
		*b++ = *a++;
}

static char *container_types[] = {
        "None",
        "Volume",
        "Mirror",
        "Stripe",
        "RAID5",
        "SSRW",
        "SSRO",
        "Morph",
        "Legacy",
        "RAID4",
        "RAID10",             
        "RAID00",             
        "V-MIRRORS",          
        "PSEUDO R4",          
	"RAID50",
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	"RAID5D",
	"RAID5D0",
	"RAID1E",
	"RAID6",
	"RAID60",
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        "Unknown"
};



/* Function: setinqstr
 *
 * Arguments: [1] pointer to void [1] int
 *
 * Purpose: Sets SCSI inquiry data strings for vendor, product
 * and revision level. Allows strings to be set in platform dependant
 * files instead of in OS dependant driver source.
 */

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static void setinqstr(struct aac_dev *dev, void *data, int tindex)
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{
	struct scsi_inq *str;

	str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
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	memset(str, ' ', sizeof(*str));

	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
		char * cp = dev->supplement_adapter_info.AdapterTypeText;
		int c = sizeof(str->vid);
		while (*cp && *cp != ' ' && --c)
			++cp;
		c = *cp;
		*cp = '\0';
		inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
		  str->vid); 
		*cp = c;
		while (*cp && *cp != ' ')
			++cp;
		while (*cp == ' ')
			++cp;
		/* last six chars reserved for vol type */
		c = 0;
		if (strlen(cp) > sizeof(str->pid)) {
			c = cp[sizeof(str->pid)];
			cp[sizeof(str->pid)] = '\0';
		}
		inqstrcpy (cp, str->pid);
		if (c)
			cp[sizeof(str->pid)] = c;
	} else {
		struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
   
		inqstrcpy (mp->vname, str->vid); 
		/* last six chars reserved for vol type */
		inqstrcpy (mp->model, str->pid);
	}
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	if (tindex < (sizeof(container_types)/sizeof(char *))){
		char *findit = str->pid;

		for ( ; *findit != ' '; findit++); /* walk till we find a space */
		/* RAID is superfluous in the context of a RAID device */
		if (memcmp(findit-4, "RAID", 4) == 0)
			*(findit -= 4) = ' ';
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		if (((findit - str->pid) + strlen(container_types[tindex]))
		 < (sizeof(str->pid) + sizeof(str->prl)))
			inqstrcpy (container_types[tindex], findit + 1);
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	}
	inqstrcpy ("V1.0", str->prl);
}

655 656 657 658
static void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code,
		      u8 a_sense_code, u8 incorrect_length,
		      u8 bit_pointer, u16 field_pointer,
		      u32 residue)
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{
	sense_buf[0] = 0xF0;	/* Sense data valid, err code 70h (current error) */
	sense_buf[1] = 0;	/* Segment number, always zero */

	if (incorrect_length) {
		sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */
		sense_buf[3] = BYTE3(residue);
		sense_buf[4] = BYTE2(residue);
		sense_buf[5] = BYTE1(residue);
		sense_buf[6] = BYTE0(residue);
	} else
		sense_buf[2] = sense_key;	/* Sense key */

	if (sense_key == ILLEGAL_REQUEST)
		sense_buf[7] = 10;	/* Additional sense length */
	else
		sense_buf[7] = 6;	/* Additional sense length */

	sense_buf[12] = sense_code;	/* Additional sense code */
	sense_buf[13] = a_sense_code;	/* Additional sense code qualifier */
	if (sense_key == ILLEGAL_REQUEST) {
		sense_buf[15] = 0;

		if (sense_code == SENCODE_INVALID_PARAM_FIELD)
			sense_buf[15] = 0x80;/* Std sense key specific field */
		/* Illegal parameter is in the parameter block */

		if (sense_code == SENCODE_INVALID_CDB_FIELD)
			sense_buf[15] = 0xc0;/* Std sense key specific field */
		/* Illegal parameter is in the CDB block */
		sense_buf[15] |= bit_pointer;
		sense_buf[16] = field_pointer >> 8;	/* MSB */
		sense_buf[17] = field_pointer;		/* LSB */
	}
}

int aac_get_adapter_info(struct aac_dev* dev)
{
	struct fib* fibptr;
	int rcode;
	u32 tmp;
700 701 702
	struct aac_adapter_info *info;
	struct aac_bus_info *command;
	struct aac_bus_info_response *bus_info;
703

704
	if (!(fibptr = aac_fib_alloc(dev)))
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		return -ENOMEM;

707
	aac_fib_init(fibptr);
708 709
	info = (struct aac_adapter_info *) fib_data(fibptr);
	memset(info,0,sizeof(*info));
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711
	rcode = aac_fib_send(RequestAdapterInfo,
712 713 714
			 fibptr, 
			 sizeof(*info),
			 FsaNormal, 
715
			 -1, 1, /* First `interrupt' command uses special wait */
716 717 718 719
			 NULL, 
			 NULL);

	if (rcode < 0) {
720 721
		aac_fib_complete(fibptr);
		aac_fib_free(fibptr);
722 723 724
		return rcode;
	}
	memcpy(&dev->adapter_info, info, sizeof(*info));
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726 727 728
	if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
		struct aac_supplement_adapter_info * info;

729
		aac_fib_init(fibptr);
730 731 732 733 734

		info = (struct aac_supplement_adapter_info *) fib_data(fibptr);

		memset(info,0,sizeof(*info));

735
		rcode = aac_fib_send(RequestSupplementAdapterInfo,
736 737 738 739 740 741 742 743 744 745
				 fibptr,
				 sizeof(*info),
				 FsaNormal,
				 1, 1,
				 NULL,
				 NULL);

		if (rcode >= 0)
			memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
	}
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747 748 749 750 751

	/* 
	 * GetBusInfo 
	 */

752
	aac_fib_init(fibptr);
753 754 755 756 757 758 759 760 761 762 763 764

	bus_info = (struct aac_bus_info_response *) fib_data(fibptr);

	memset(bus_info, 0, sizeof(*bus_info));

	command = (struct aac_bus_info *)bus_info;

	command->Command = cpu_to_le32(VM_Ioctl);
	command->ObjType = cpu_to_le32(FT_DRIVE);
	command->MethodId = cpu_to_le32(1);
	command->CtlCmd = cpu_to_le32(GetBusInfo);

765
	rcode = aac_fib_send(ContainerCommand,
766 767 768 769 770 771 772 773 774 775 776
			 fibptr,
			 sizeof (*bus_info),
			 FsaNormal,
			 1, 1,
			 NULL, NULL);

	if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
		dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
		dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
	}

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	tmp = le32_to_cpu(dev->adapter_info.kernelrev);
778
	printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n", 
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			dev->name, 
			dev->id,
			tmp>>24,
			(tmp>>16)&0xff,
			tmp&0xff,
784 785 786
			le32_to_cpu(dev->adapter_info.kernelbuild),
			(int)sizeof(dev->supplement_adapter_info.BuildDate),
			dev->supplement_adapter_info.BuildDate);
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	tmp = le32_to_cpu(dev->adapter_info.monitorrev);
	printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n", 
			dev->name, dev->id,
			tmp>>24,(tmp>>16)&0xff,tmp&0xff,
			le32_to_cpu(dev->adapter_info.monitorbuild));
	tmp = le32_to_cpu(dev->adapter_info.biosrev);
	printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n", 
			dev->name, dev->id,
			tmp>>24,(tmp>>16)&0xff,tmp&0xff,
			le32_to_cpu(dev->adapter_info.biosbuild));
	if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
		printk(KERN_INFO "%s%d: serial %x\n",
			dev->name, dev->id,
			le32_to_cpu(dev->adapter_info.serial[0]));

	dev->nondasd_support = 0;
	dev->raid_scsi_mode = 0;
	if(dev->adapter_info.options & AAC_OPT_NONDASD){
		dev->nondasd_support = 1;
	}

	/*
	 * If the firmware supports ROMB RAID/SCSI mode and we are currently
	 * in RAID/SCSI mode, set the flag. For now if in this mode we will
	 * force nondasd support on. If we decide to allow the non-dasd flag
	 * additional changes changes will have to be made to support
	 * RAID/SCSI.  the function aac_scsi_cmd in this module will have to be
	 * changed to support the new dev->raid_scsi_mode flag instead of
	 * leaching off of the dev->nondasd_support flag. Also in linit.c the
	 * function aac_detect will have to be modified where it sets up the
	 * max number of channels based on the aac->nondasd_support flag only.
	 */
	if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
	    (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
		dev->nondasd_support = 1;
		dev->raid_scsi_mode = 1;
	}
	if (dev->raid_scsi_mode != 0)
		printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
				dev->name, dev->id);
		
	if(nondasd != -1) {  
		dev->nondasd_support = (nondasd!=0);
	}
	if(dev->nondasd_support != 0){
		printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
	}

	dev->dac_support = 0;
	if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
		printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id);
		dev->dac_support = 1;
	}

	if(dacmode != -1) {
		dev->dac_support = (dacmode!=0);
	}
	if(dev->dac_support != 0) {
845 846
		if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
			!pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
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			printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
				dev->name, dev->id);
849 850
		} else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
			!pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
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			printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
				dev->name, dev->id);
			dev->dac_support = 0;
		} else {
			printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
				dev->name, dev->id);
			rcode = -ENOMEM;
		}
	}
860 861 862
	/* 
	 * 57 scatter gather elements 
	 */
863 864
	if (!(dev->raw_io_interface)) {
		dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
865
			sizeof(struct aac_fibhdr) -
866 867
			sizeof(struct aac_write) + sizeof(struct sgentry)) /
				sizeof(struct sgentry);
868 869 870 871 872 873 874 875
		if (dev->dac_support) {
			/* 
			 * 38 scatter gather elements 
			 */
			dev->scsi_host_ptr->sg_tablesize =
				(dev->max_fib_size -
				sizeof(struct aac_fibhdr) -
				sizeof(struct aac_write64) +
876 877
				sizeof(struct sgentry64)) /
					sizeof(struct sgentry64);
878 879 880 881 882 883 884 885 886 887 888 889 890 891 892
		}
		dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
		if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
			/*
			 * Worst case size that could cause sg overflow when
			 * we break up SG elements that are larger than 64KB.
			 * Would be nice if we could tell the SCSI layer what
			 * the maximum SG element size can be. Worst case is
			 * (sg_tablesize-1) 4KB elements with one 64KB
			 * element.
			 *	32bit -> 468 or 238KB	64bit -> 424 or 212KB
			 */
			dev->scsi_host_ptr->max_sectors =
			  (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
		}
893
	}
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895 896
	aac_fib_complete(fibptr);
	aac_fib_free(fibptr);
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	return rcode;
}


902
static void io_callback(void *context, struct fib * fibptr)
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{
	struct aac_dev *dev;
	struct aac_read_reply *readreply;
	struct scsi_cmnd *scsicmd;
	u32 cid;

	scsicmd = (struct scsi_cmnd *) context;

	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
912
	cid = scmd_id(scsicmd);
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914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947
	if (nblank(dprintk(x))) {
		u64 lba;
		switch (scsicmd->cmnd[0]) {
		case WRITE_6:
		case READ_6:
			lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
			    (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
			break;
		case WRITE_16:
		case READ_16:
			lba = ((u64)scsicmd->cmnd[2] << 56) |
			      ((u64)scsicmd->cmnd[3] << 48) |
			      ((u64)scsicmd->cmnd[4] << 40) |
			      ((u64)scsicmd->cmnd[5] << 32) |
			      ((u64)scsicmd->cmnd[6] << 24) |
			      (scsicmd->cmnd[7] << 16) |
			      (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
			break;
		case WRITE_12:
		case READ_12:
			lba = ((u64)scsicmd->cmnd[2] << 24) |
			      (scsicmd->cmnd[3] << 16) |
			      (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
			break;
		default:
			lba = ((u64)scsicmd->cmnd[2] << 24) |
			       (scsicmd->cmnd[3] << 16) |
			       (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
			break;
		}
		printk(KERN_DEBUG
		  "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
		  smp_processor_id(), (unsigned long long)lba, jiffies);
	}
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	if (fibptr == NULL)
		BUG();
		
	if(scsicmd->use_sg)
		pci_unmap_sg(dev->pdev, 
			(struct scatterlist *)scsicmd->buffer,
			scsicmd->use_sg,
			scsicmd->sc_data_direction);
	else if(scsicmd->request_bufflen)
		pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
				 scsicmd->request_bufflen,
				 scsicmd->sc_data_direction);
	readreply = (struct aac_read_reply *)fib_data(fibptr);
	if (le32_to_cpu(readreply->status) == ST_OK)
		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
	else {
965
#ifdef AAC_DETAILED_STATUS_INFO
966
		printk(KERN_WARNING "io_callback: io failed, status = %d\n",
967 968
		  le32_to_cpu(readreply->status));
#endif
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		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
		set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
				    HARDWARE_ERROR,
				    SENCODE_INTERNAL_TARGET_FAILURE,
				    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
				    0, 0);
		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
		  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
		    ? sizeof(scsicmd->sense_buffer)
		    : sizeof(dev->fsa_dev[cid].sense_data));
	}
980 981
	aac_fib_complete(fibptr);
	aac_fib_free(fibptr);
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983
	scsicmd->scsi_done(scsicmd);
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}

986
static int aac_read(struct scsi_cmnd * scsicmd, int cid)
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{
988
	u64 lba;
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	u32 count;
	int status;

	u16 fibsize;
	struct aac_dev *dev;
	struct fib * cmd_fibcontext;

	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
	/*
	 *	Get block address and transfer length
	 */
1000 1001
	switch (scsicmd->cmnd[0]) {
	case READ_6:
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		dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid));

1004 1005
		lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | 
			(scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
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		count = scsicmd->cmnd[4];

		if (count == 0)
			count = 256;
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035
		break;
	case READ_16:
		dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", cid));

		lba = 	((u64)scsicmd->cmnd[2] << 56) |
		 	((u64)scsicmd->cmnd[3] << 48) |
			((u64)scsicmd->cmnd[4] << 40) |
			((u64)scsicmd->cmnd[5] << 32) |
			((u64)scsicmd->cmnd[6] << 24) | 
			(scsicmd->cmnd[7] << 16) |
			(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
		count = (scsicmd->cmnd[10] << 24) | 
			(scsicmd->cmnd[11] << 16) |
			(scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
		break;
	case READ_12:
		dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", cid));

		lba = ((u64)scsicmd->cmnd[2] << 24) | 
			(scsicmd->cmnd[3] << 16) |
		    	(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
		count = (scsicmd->cmnd[6] << 24) | 
			(scsicmd->cmnd[7] << 16) |
		      	(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
		break;
	default:
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		dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid));

1038 1039 1040
		lba = ((u64)scsicmd->cmnd[2] << 24) | 
			(scsicmd->cmnd[3] << 16) | 
			(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
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		count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1042
		break;
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	}
1044
	dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1045
	  smp_processor_id(), (unsigned long long)lba, jiffies));
1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062
	if ((!(dev->raw_io_interface) || !(dev->raw_io_64)) &&
		(lba & 0xffffffff00000000LL)) {
		dprintk((KERN_DEBUG "aac_read: Illegal lba\n"));
		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | 
			SAM_STAT_CHECK_CONDITION;
		set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
			    HARDWARE_ERROR,
			    SENCODE_INTERNAL_TARGET_FAILURE,
			    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
			    0, 0);
		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
		  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
		    ? sizeof(scsicmd->sense_buffer)
		    : sizeof(dev->fsa_dev[cid].sense_data));
		scsicmd->scsi_done(scsicmd);
		return 0;
	}
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	/*
	 *	Alocate and initialize a Fib
	 */
1066
	if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
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		return -1;
	}

1070
	aac_fib_init(cmd_fibcontext);
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1072 1073 1074
	if (dev->raw_io_interface) {
		struct aac_raw_io *readcmd;
		readcmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1075 1076
		readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
		readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089
		readcmd->count = cpu_to_le32(count<<9);
		readcmd->cid = cpu_to_le16(cid);
		readcmd->flags = cpu_to_le16(1);
		readcmd->bpTotal = 0;
		readcmd->bpComplete = 0;
		
		aac_build_sgraw(scsicmd, &readcmd->sg);
		fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
		if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
			BUG();
		/*
		 *	Now send the Fib to the adapter
		 */
1090
		status = aac_fib_send(ContainerRawIo,
1091 1092 1093 1094 1095 1096 1097
			  cmd_fibcontext, 
			  fibsize, 
			  FsaNormal, 
			  0, 1, 
			  (fib_callback) io_callback, 
			  (void *) scsicmd);
	} else if (dev->dac_support == 1) {
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		struct aac_read64 *readcmd;
		readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext);
		readcmd->command = cpu_to_le32(VM_CtHostRead64);
		readcmd->cid = cpu_to_le16(cid);
		readcmd->sector_count = cpu_to_le16(count);
1103
		readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
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		readcmd->pad   = 0;
		readcmd->flags = 0; 

		aac_build_sg64(scsicmd, &readcmd->sg);
		fibsize = sizeof(struct aac_read64) + 
			((le32_to_cpu(readcmd->sg.count) - 1) * 
			 sizeof (struct sgentry64));
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		BUG_ON (fibsize > (dev->max_fib_size - 
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					sizeof(struct aac_fibhdr)));
		/*
		 *	Now send the Fib to the adapter
		 */
1116
		status = aac_fib_send(ContainerCommand64,
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			  cmd_fibcontext, 
			  fibsize, 
			  FsaNormal, 
			  0, 1, 
1121
			  (fib_callback) io_callback, 
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			  (void *) scsicmd);
	} else {
		struct aac_read *readcmd;
		readcmd = (struct aac_read *) fib_data(cmd_fibcontext);
		readcmd->command = cpu_to_le32(VM_CtBlockRead);
		readcmd->cid = cpu_to_le32(cid);
1128
		readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
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		readcmd->count = cpu_to_le32(count * 512);

		aac_build_sg(scsicmd, &readcmd->sg);
		fibsize = sizeof(struct aac_read) + 
			((le32_to_cpu(readcmd->sg.count) - 1) * 
			 sizeof (struct sgentry));
1135
		BUG_ON (fibsize > (dev->max_fib_size -
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					sizeof(struct aac_fibhdr)));
		/*
		 *	Now send the Fib to the adapter
		 */
1140
		status = aac_fib_send(ContainerCommand,
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			  cmd_fibcontext, 
			  fibsize, 
			  FsaNormal, 
			  0, 1, 
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			  (fib_callback) io_callback, 
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			  (void *) scsicmd);
	}

	

	/*
	 *	Check that the command queued to the controller
	 */
	if (status == -EINPROGRESS) 
		return 0;
		
1157
	printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
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	/*
	 *	For some reason, the Fib didn't queue, return QUEUE_FULL
	 */
	scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1162
	scsicmd->scsi_done(scsicmd);
1163 1164
	aac_fib_complete(cmd_fibcontext);
	aac_fib_free(cmd_fibcontext);
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	return 0;
}

static int aac_write(struct scsi_cmnd * scsicmd, int cid)
{
1170
	u64 lba;
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	u32 count;
	int status;
	u16 fibsize;
	struct aac_dev *dev;
	struct fib * cmd_fibcontext;

	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
	/*
	 *	Get block address and transfer length
	 */
	if (scsicmd->cmnd[0] == WRITE_6)	/* 6 byte command */
	{
		lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
		count = scsicmd->cmnd[4];
		if (count == 0)
			count = 256;
1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205
	} else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
		dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", cid));

		lba = 	((u64)scsicmd->cmnd[2] << 56) |
			((u64)scsicmd->cmnd[3] << 48) |
			((u64)scsicmd->cmnd[4] << 40) |
			((u64)scsicmd->cmnd[5] << 32) |
			((u64)scsicmd->cmnd[6] << 24) | 
			(scsicmd->cmnd[7] << 16) |
			(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
		count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
			(scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
	} else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
		dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", cid));

		lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
		    | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
		count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
		      | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
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	} else {
		dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid));
1208
		lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
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		count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
	}
1211
	dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
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	  smp_processor_id(), (unsigned long long)lba, jiffies));
1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228
	if ((!(dev->raw_io_interface) || !(dev->raw_io_64))
	 && (lba & 0xffffffff00000000LL)) {
		dprintk((KERN_DEBUG "aac_write: Illegal lba\n"));
		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
		set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
			    HARDWARE_ERROR,
			    SENCODE_INTERNAL_TARGET_FAILURE,
			    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
			    0, 0);
		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
		  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
		    ? sizeof(scsicmd->sense_buffer)
		    : sizeof(dev->fsa_dev[cid].sense_data));
		scsicmd->scsi_done(scsicmd);
		return 0;
	}
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	/*
	 *	Allocate and initialize a Fib then setup a BlockWrite command
	 */
1232
	if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
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		scsicmd->result = DID_ERROR << 16;
1234
		scsicmd->scsi_done(scsicmd);
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		return 0;
	}
1237
	aac_fib_init(cmd_fibcontext);
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1239 1240 1241
	if (dev->raw_io_interface) {
		struct aac_raw_io *writecmd;
		writecmd = (struct aac_raw_io *) fib_data(cmd_fibcontext);
1242 1243
		writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
		writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256
		writecmd->count = cpu_to_le32(count<<9);
		writecmd->cid = cpu_to_le16(cid);
		writecmd->flags = 0; 
		writecmd->bpTotal = 0;
		writecmd->bpComplete = 0;
		
		aac_build_sgraw(scsicmd, &writecmd->sg);
		fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
		if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))
			BUG();
		/*
		 *	Now send the Fib to the adapter
		 */
1257
		status = aac_fib_send(ContainerRawIo,
1258 1259 1260 1261 1262 1263 1264
			  cmd_fibcontext, 
			  fibsize, 
			  FsaNormal, 
			  0, 1, 
			  (fib_callback) io_callback, 
			  (void *) scsicmd);
	} else if (dev->dac_support == 1) {
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		struct aac_write64 *writecmd;
		writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext);
		writecmd->command = cpu_to_le32(VM_CtHostWrite64);
		writecmd->cid = cpu_to_le16(cid);
		writecmd->sector_count = cpu_to_le16(count); 
1270
		writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
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		writecmd->pad	= 0;
		writecmd->flags	= 0;

		aac_build_sg64(scsicmd, &writecmd->sg);
		fibsize = sizeof(struct aac_write64) + 
			((le32_to_cpu(writecmd->sg.count) - 1) * 
			 sizeof (struct sgentry64));
1278
		BUG_ON (fibsize > (dev->max_fib_size -
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					sizeof(struct aac_fibhdr)));
		/*
		 *	Now send the Fib to the adapter
		 */
1283
		status = aac_fib_send(ContainerCommand64,
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			  cmd_fibcontext, 
			  fibsize, 
			  FsaNormal, 
			  0, 1, 
1288
			  (fib_callback) io_callback, 
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			  (void *) scsicmd);
	} else {
		struct aac_write *writecmd;
		writecmd = (struct aac_write *) fib_data(cmd_fibcontext);
		writecmd->command = cpu_to_le32(VM_CtBlockWrite);
		writecmd->cid = cpu_to_le32(cid);
1295
		writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
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		writecmd->count = cpu_to_le32(count * 512);
		writecmd->sg.count = cpu_to_le32(1);
		/* ->stable is not used - it did mean which type of write */

		aac_build_sg(scsicmd, &writecmd->sg);
		fibsize = sizeof(struct aac_write) + 
			((le32_to_cpu(writecmd->sg.count) - 1) * 
			 sizeof (struct sgentry));
1304
		BUG_ON (fibsize > (dev->max_fib_size -
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					sizeof(struct aac_fibhdr)));
		/*
		 *	Now send the Fib to the adapter
		 */
1309
		status = aac_fib_send(ContainerCommand,
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			  cmd_fibcontext, 
			  fibsize, 
			  FsaNormal, 
			  0, 1, 
1314
			  (fib_callback) io_callback, 
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			  (void *) scsicmd);
	}

	/*
	 *	Check that the command queued to the controller
	 */
	if (status == -EINPROGRESS)
	{
		return 0;
	}

1326
	printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
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	/*
	 *	For some reason, the Fib didn't queue, return QUEUE_FULL
	 */
	scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1331
	scsicmd->scsi_done(scsicmd);
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1333 1334
	aac_fib_complete(cmd_fibcontext);
	aac_fib_free(cmd_fibcontext);
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1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356
	return 0;
}

static void synchronize_callback(void *context, struct fib *fibptr)
{
	struct aac_synchronize_reply *synchronizereply;
	struct scsi_cmnd *cmd;

	cmd = context;

	dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n", 
				smp_processor_id(), jiffies));
	BUG_ON(fibptr == NULL);


	synchronizereply = fib_data(fibptr);
	if (le32_to_cpu(synchronizereply->status) == CT_OK)
		cmd->result = DID_OK << 16 | 
			COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
	else {
		struct scsi_device *sdev = cmd->device;
		struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
1357
		u32 cid = sdev_id(sdev);
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		printk(KERN_WARNING 
		     "synchronize_callback: synchronize failed, status = %d\n",
		     le32_to_cpu(synchronizereply->status));
		cmd->result = DID_OK << 16 | 
			COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
		set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
				    HARDWARE_ERROR,
				    SENCODE_INTERNAL_TARGET_FAILURE,
				    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
				    0, 0);
		memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
		  min(sizeof(dev->fsa_dev[cid].sense_data), 
			  sizeof(cmd->sense_buffer)));
	}

1373 1374
	aac_fib_complete(fibptr);
	aac_fib_free(fibptr);
1375
	cmd->scsi_done(cmd);
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}

static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
{
	int status;
	struct fib *cmd_fibcontext;
	struct aac_synchronize *synchronizecmd;
	struct scsi_cmnd *cmd;
	struct scsi_device *sdev = scsicmd->device;
	int active = 0;
	unsigned long flags;

	/*
	 * Wait for all commands to complete to this specific
	 * target (block).
	 */
	spin_lock_irqsave(&sdev->list_lock, flags);
	list_for_each_entry(cmd, &sdev->cmd_list, list)
		if (cmd != scsicmd && cmd->serial_number != 0) {
			++active;
			break;
		}

	spin_unlock_irqrestore(&sdev->list_lock, flags);

	/*
	 *	Yield the processor (requeue for later)
	 */
	if (active)
		return SCSI_MLQUEUE_DEVICE_BUSY;

	/*
1408
	 *	Allocate and initialize a Fib
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	 */
	if (!(cmd_fibcontext = 
1411
	    aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata)))
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		return SCSI_MLQUEUE_HOST_BUSY;

1414
	aac_fib_init(cmd_fibcontext);
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	synchronizecmd = fib_data(cmd_fibcontext);
	synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
	synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
	synchronizecmd->cid = cpu_to_le32(cid);
	synchronizecmd->count = 
	     cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));

	/*
	 *	Now send the Fib to the adapter
	 */
1426
	status = aac_fib_send(ContainerCommand,
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		  cmd_fibcontext,
		  sizeof(struct aac_synchronize),
		  FsaNormal,
		  0, 1,
		  (fib_callback)synchronize_callback,
		  (void *)scsicmd);

	/*
	 *	Check that the command queued to the controller
	 */
	if (status == -EINPROGRESS)
		return 0;

	printk(KERN_WARNING 
1441 1442 1443
		"aac_synchronize: aac_fib_send failed with status: %d.\n", status);
	aac_fib_complete(cmd_fibcontext);
	aac_fib_free(cmd_fibcontext);
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	return SCSI_MLQUEUE_HOST_BUSY;
}

/**
 *	aac_scsi_cmd()		-	Process SCSI command
 *	@scsicmd:		SCSI command block
 *
 *	Emulate a SCSI command and queue the required request for the
 *	aacraid firmware.
 */
 
int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
{
	u32 cid = 0;
	struct Scsi_Host *host = scsicmd->device->host;
	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
	struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
	int ret;
	
	/*
	 *	If the bus, id or lun is out of range, return fail
	 *	Test does not apply to ID 16, the pseudo id for the controller
	 *	itself.
	 */
1468
	if (scmd_id(scsicmd) != host->this_id) {
1469 1470 1471
		if ((scmd_channel(scsicmd) == CONTAINER_CHANNEL)) {
			if((scmd_id(scsicmd) >= dev->maximum_num_containers) ||
					(scsicmd->device->lun != 0)) {
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				scsicmd->result = DID_NO_CONNECT << 16;
				scsicmd->scsi_done(scsicmd);
				return 0;
			}
1476
			cid = scmd_id(scsicmd);
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			/*
			 *	If the target container doesn't exist, it may have
			 *	been newly created
			 */
			if ((fsa_dev_ptr[cid].valid & 1) == 0) {
				switch (scsicmd->cmnd[0]) {
1484 1485 1486 1487 1488
				case SERVICE_ACTION_IN:
					if (!(dev->raw_io_interface) ||
					    !(dev->raw_io_64) ||
					    ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
						break;
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				case INQUIRY:
				case READ_CAPACITY:
				case TEST_UNIT_READY:
					spin_unlock_irq(host->host_lock);
1493
					aac_probe_container(dev, cid);
1494 1495
					if ((fsa_dev_ptr[cid].valid & 1) == 0)
						fsa_dev_ptr[cid].valid = 0;
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					spin_lock_irq(host->host_lock);
					if (fsa_dev_ptr[cid].valid == 0) {
						scsicmd->result = DID_NO_CONNECT << 16;
						scsicmd->scsi_done(scsicmd);
						return 0;
					}
				default:
					break;
				}
			}
			/*
			 *	If the target container still doesn't exist, 
			 *	return failure
			 */
			if (fsa_dev_ptr[cid].valid == 0) {
				scsicmd->result = DID_BAD_TARGET << 16;
				scsicmd->scsi_done(scsicmd);
				return 0;
			}
		} else {  /* check for physical non-dasd devices */
			if(dev->nondasd_support == 1){
				return aac_send_srb_fib(scsicmd);
			} else {
				scsicmd->result = DID_NO_CONNECT << 16;
				scsicmd->scsi_done(scsicmd);
				return 0;
			}
		}
	}
	/*
	 * else Command for the controller itself
	 */
	else if ((scsicmd->cmnd[0] != INQUIRY) &&	/* only INQUIRY & TUR cmnd supported for controller */
		(scsicmd->cmnd[0] != TEST_UNIT_READY)) 
	{
		dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
		set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
			    ILLEGAL_REQUEST,
			    SENCODE_INVALID_COMMAND,
			    ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
		  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
		    ? sizeof(scsicmd->sense_buffer)
		    : sizeof(dev->fsa_dev[cid].sense_data));
		scsicmd->scsi_done(scsicmd);
		return 0;
	}


	/* Handle commands here that don't really require going out to the adapter */
	switch (scsicmd->cmnd[0]) {
	case INQUIRY:
	{
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		struct inquiry_data inq_data;
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		dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scmd_id(scsicmd)));
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		memset(&inq_data, 0, sizeof (struct inquiry_data));
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		inq_data.inqd_ver = 2;	/* claim compliance to SCSI-2 */
		inq_data.inqd_rdf = 2;	/* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
		inq_data.inqd_len = 31;
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		/*Format for "pad2" is  RelAdr | WBus32 | WBus16 |  Sync  | Linked |Reserved| CmdQue | SftRe */
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		inq_data.inqd_pad2= 0x32 ;	 /*WBus16|Sync|CmdQue */
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		/*
		 *	Set the Vendor, Product, and Revision Level
		 *	see: <vendor>.c i.e. aac.c
		 */
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		if (scmd_id(scsicmd) == host->this_id) {
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			setinqstr(dev, (void *) (inq_data.inqd_vid), (sizeof(container_types)/sizeof(char *)));
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			inq_data.inqd_pdt = INQD_PDT_PROC;	/* Processor device */
			aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
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			scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
			scsicmd->scsi_done(scsicmd);
			return 0;
		}
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		setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
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		inq_data.inqd_pdt = INQD_PDT_DA;	/* Direct/random access device */
		aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
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		return aac_get_container_name(scsicmd, cid);
	}
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	case SERVICE_ACTION_IN:
		if (!(dev->raw_io_interface) ||
		    !(dev->raw_io_64) ||
		    ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
			break;
	{
		u64 capacity;
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		char cp[13];
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		dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
		capacity = fsa_dev_ptr[cid].size - 1;
		cp[0] = (capacity >> 56) & 0xff;
		cp[1] = (capacity >> 48) & 0xff;
		cp[2] = (capacity >> 40) & 0xff;
		cp[3] = (capacity >> 32) & 0xff;
		cp[4] = (capacity >> 24) & 0xff;
		cp[5] = (capacity >> 16) & 0xff;
		cp[6] = (capacity >> 8) & 0xff;
		cp[7] = (capacity >> 0) & 0xff;
		cp[8] = 0;
		cp[9] = 0;
		cp[10] = 2;
		cp[11] = 0;
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		cp[12] = 0;
		aac_internal_transfer(scsicmd, cp, 0,
		  min((unsigned int)scsicmd->cmnd[13], sizeof(cp)));
		if (sizeof(cp) < scsicmd->cmnd[13]) {
			unsigned int len, offset = sizeof(cp);

			memset(cp, 0, offset);
			do {
				len = min(scsicmd->cmnd[13]-offset, sizeof(cp));
				aac_internal_transfer(scsicmd, cp, offset, len);
			} while ((offset += len) < scsicmd->cmnd[13]);
		}
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		/* Do not cache partition table for arrays */
		scsicmd->device->removable = 1;

		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
		scsicmd->scsi_done(scsicmd);

		return 0;
	}

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	case READ_CAPACITY:
	{
		u32 capacity;
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		char cp[8];
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		dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
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		if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
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			capacity = fsa_dev_ptr[cid].size - 1;
		else
			capacity = (u32)-1;
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		cp[0] = (capacity >> 24) & 0xff;
		cp[1] = (capacity >> 16) & 0xff;
		cp[2] = (capacity >> 8) & 0xff;
		cp[3] = (capacity >> 0) & 0xff;
		cp[4] = 0;
		cp[5] = 0;
		cp[6] = 2;
		cp[7] = 0;
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		aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
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		/* Do not cache partition table for arrays */
		scsicmd->device->removable = 1;
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		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
		scsicmd->scsi_done(scsicmd);

		return 0;
	}

	case MODE_SENSE:
	{
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		char mode_buf[4];
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		dprintk((KERN_DEBUG "MODE SENSE command.\n"));
		mode_buf[0] = 3;	/* Mode data length */
		mode_buf[1] = 0;	/* Medium type - default */
		mode_buf[2] = 0;	/* Device-specific param, bit 8: 0/1 = write enabled/protected */
		mode_buf[3] = 0;	/* Block descriptor length */

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		aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
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		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
		scsicmd->scsi_done(scsicmd);

		return 0;
	}
	case MODE_SENSE_10:
	{
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		char mode_buf[8];
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		dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
		mode_buf[0] = 0;	/* Mode data length (MSB) */
		mode_buf[1] = 6;	/* Mode data length (LSB) */
		mode_buf[2] = 0;	/* Medium type - default */
		mode_buf[3] = 0;	/* Device-specific param, bit 8: 0/1 = write enabled/protected */
		mode_buf[4] = 0;	/* reserved */
		mode_buf[5] = 0;	/* reserved */
		mode_buf[6] = 0;	/* Block descriptor length (MSB) */
		mode_buf[7] = 0;	/* Block descriptor length (LSB) */
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		aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
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		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
		scsicmd->scsi_done(scsicmd);

		return 0;
	}
	case REQUEST_SENSE:
		dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
		memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
		scsicmd->scsi_done(scsicmd);
		return 0;

	case ALLOW_MEDIUM_REMOVAL:
		dprintk((KERN_DEBUG "LOCK command.\n"));
		if (scsicmd->cmnd[4])
			fsa_dev_ptr[cid].locked = 1;
		else
			fsa_dev_ptr[cid].locked = 0;

		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
		scsicmd->scsi_done(scsicmd);
		return 0;
	/*
	 *	These commands are all No-Ops
	 */
	case TEST_UNIT_READY:
	case RESERVE:
	case RELEASE:
	case REZERO_UNIT:
	case REASSIGN_BLOCKS:
	case SEEK_10:
	case START_STOP:
		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
		scsicmd->scsi_done(scsicmd);
		return 0;
	}

	switch (scsicmd->cmnd[0]) 
	{
		case READ_6:
		case READ_10:
1724 1725
		case READ_12:
		case READ_16:
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			/*
			 *	Hack to keep track of ordinal number of the device that
			 *	corresponds to a container. Needed to convert
			 *	containers to /dev/sd device names
			 */
			 
			spin_unlock_irq(host->host_lock);
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			if (scsicmd->request->rq_disk)
				strlcpy(fsa_dev_ptr[cid].devname,
				scsicmd->request->rq_disk->disk_name,
			  	min(sizeof(fsa_dev_ptr[cid].devname),
				sizeof(scsicmd->request->rq_disk->disk_name) + 1));
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			ret = aac_read(scsicmd, cid);
			spin_lock_irq(host->host_lock);
			return ret;

		case WRITE_6:
		case WRITE_10:
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		case WRITE_12:
		case WRITE_16:
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			spin_unlock_irq(host->host_lock);
			ret = aac_write(scsicmd, cid);
			spin_lock_irq(host->host_lock);
			return ret;

		case SYNCHRONIZE_CACHE:
			/* Issue FIB to tell Firmware to flush it's cache */
			return aac_synchronize(scsicmd, cid);
			
		default:
			/*
			 *	Unhandled commands
			 */
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			dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
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			scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
			set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
				ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
				ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
			memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
			  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
			    ? sizeof(scsicmd->sense_buffer)
			    : sizeof(dev->fsa_dev[cid].sense_data));
			scsicmd->scsi_done(scsicmd);
			return 0;
	}
}

static int query_disk(struct aac_dev *dev, void __user *arg)
{
	struct aac_query_disk qd;
	struct fsa_dev_info *fsa_dev_ptr;

	fsa_dev_ptr = dev->fsa_dev;
	if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
		return -EFAULT;
	if (qd.cnum == -1)
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		qd.cnum = qd.id;
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	else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1)) 
	{
		if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
			return -EINVAL;
		qd.instance = dev->scsi_host_ptr->host_no;
		qd.bus = 0;
		qd.id = CONTAINER_TO_ID(qd.cnum);
		qd.lun = CONTAINER_TO_LUN(qd.cnum);
	}
	else return -EINVAL;

	qd.valid = fsa_dev_ptr[qd.cnum].valid;
	qd.locked = fsa_dev_ptr[qd.cnum].locked;
	qd.deleted = fsa_dev_ptr[qd.cnum].deleted;

	if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
		qd.unmapped = 1;
	else
		qd.unmapped = 0;

	strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
	  min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));

	if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
		return -EFAULT;
	return 0;
}

static int force_delete_disk(struct aac_dev *dev, void __user *arg)
{
	struct aac_delete_disk dd;
	struct fsa_dev_info *fsa_dev_ptr;

	fsa_dev_ptr = dev->fsa_dev;

	if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
		return -EFAULT;

	if (dd.cnum >= dev->maximum_num_containers)
		return -EINVAL;
	/*
	 *	Mark this container as being deleted.
	 */
	fsa_dev_ptr[dd.cnum].deleted = 1;
	/*
	 *	Mark the container as no longer valid
	 */
	fsa_dev_ptr[dd.cnum].valid = 0;
	return 0;
}

static int delete_disk(struct aac_dev *dev, void __user *arg)
{
	struct aac_delete_disk dd;
	struct fsa_dev_info *fsa_dev_ptr;

	fsa_dev_ptr = dev->fsa_dev;

	if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
		return -EFAULT;

	if (dd.cnum >= dev->maximum_num_containers)
		return -EINVAL;
	/*
	 *	If the container is locked, it can not be deleted by the API.
	 */
	if (fsa_dev_ptr[dd.cnum].locked)
		return -EBUSY;
	else {
		/*
		 *	Mark the container as no longer being valid.
		 */
		fsa_dev_ptr[dd.cnum].valid = 0;
		fsa_dev_ptr[dd.cnum].devname[0] = '\0';
		return 0;
	}
}

int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
{
	switch (cmd) {
	case FSACTL_QUERY_DISK:
		return query_disk(dev, arg);
	case FSACTL_DELETE_DISK:
		return delete_disk(dev, arg);
	case FSACTL_FORCE_DELETE_DISK:
		return force_delete_disk(dev, arg);
	case FSACTL_GET_CONTAINERS:
		return aac_get_containers(dev);
	default:
		return -ENOTTY;
	}
}

/**
 *
 * aac_srb_callback
 * @context: the context set in the fib - here it is scsi cmd
 * @fibptr: pointer to the fib
 *
 * Handles the completion of a scsi command to a non dasd device
 *
 */

static void aac_srb_callback(void *context, struct fib * fibptr)
{
	struct aac_dev *dev;
	struct aac_srb_reply *srbreply;
	struct scsi_cmnd *scsicmd;

	scsicmd = (struct scsi_cmnd *) context;
	dev = (struct aac_dev *)scsicmd->device->host->hostdata;

	if (fibptr == NULL)
		BUG();

	srbreply = (struct aac_srb_reply *) fib_data(fibptr);

	scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
	/*
	 *	Calculate resid for sg 
	 */
	 
	scsicmd->resid = scsicmd->request_bufflen - 
		le32_to_cpu(srbreply->data_xfer_length);

	if(scsicmd->use_sg)
		pci_unmap_sg(dev->pdev, 
			(struct scatterlist *)scsicmd->buffer,
			scsicmd->use_sg,
			scsicmd->sc_data_direction);
	else if(scsicmd->request_bufflen)
		pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen,
			scsicmd->sc_data_direction);

	/*
	 * First check the fib status
	 */

	if (le32_to_cpu(srbreply->status) != ST_OK){
		int len;
		printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
		len = (le32_to_cpu(srbreply->sense_data_size) > 
				sizeof(scsicmd->sense_buffer)) ?
				sizeof(scsicmd->sense_buffer) : 
				le32_to_cpu(srbreply->sense_data_size);
		scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
		memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
	}

	/*
	 * Next check the srb status
	 */
	switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
	case SRB_STATUS_ERROR_RECOVERY:
	case SRB_STATUS_PENDING:
	case SRB_STATUS_SUCCESS:
1940
		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
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		break;
	case SRB_STATUS_DATA_OVERRUN:
		switch(scsicmd->cmnd[0]){
		case  READ_6:
		case  WRITE_6:
		case  READ_10:
		case  WRITE_10:
		case  READ_12:
		case  WRITE_12:
1950 1951
		case  READ_16:
		case  WRITE_16:
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			if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
				printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
			} else {
				printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
			}
			scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
			break;
		case INQUIRY: {
1960
			scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
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			break;
		}
		default:
			scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
			break;
		}
		break;
	case SRB_STATUS_ABORTED:
		scsicmd->result = DID_ABORT << 16 | ABORT << 8;
		break;
	case SRB_STATUS_ABORT_FAILED:
		// Not sure about this one - but assuming the hba was trying to abort for some reason
		scsicmd->result = DID_ERROR << 16 | ABORT << 8;
		break;
	case SRB_STATUS_PARITY_ERROR:
		scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
		break;
	case SRB_STATUS_NO_DEVICE:
	case SRB_STATUS_INVALID_PATH_ID:
	case SRB_STATUS_INVALID_TARGET_ID:
	case SRB_STATUS_INVALID_LUN:
	case SRB_STATUS_SELECTION_TIMEOUT:
		scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
		break;

	case SRB_STATUS_COMMAND_TIMEOUT:
	case SRB_STATUS_TIMEOUT:
		scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
		break;

	case SRB_STATUS_BUSY:
		scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
		break;

	case SRB_STATUS_BUS_RESET:
		scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
		break;

	case SRB_STATUS_MESSAGE_REJECTED:
		scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
		break;
	case SRB_STATUS_REQUEST_FLUSHED:
	case SRB_STATUS_ERROR:
	case SRB_STATUS_INVALID_REQUEST:
	case SRB_STATUS_REQUEST_SENSE_FAILED:
	case SRB_STATUS_NO_HBA:
	case SRB_STATUS_UNEXPECTED_BUS_FREE:
	case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
	case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
	case SRB_STATUS_DELAYED_RETRY:
	case SRB_STATUS_BAD_FUNCTION:
	case SRB_STATUS_NOT_STARTED:
	case SRB_STATUS_NOT_IN_USE:
	case SRB_STATUS_FORCE_ABORT:
	case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
	default:
#ifdef AAC_DETAILED_STATUS_INFO
		printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
			le32_to_cpu(srbreply->srb_status) & 0x3F,
			aac_get_status_string(
				le32_to_cpu(srbreply->srb_status) & 0x3F), 
			scsicmd->cmnd[0], 
			le32_to_cpu(srbreply->scsi_status));
#endif
		scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
		break;
	}
	if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
		int len;
		scsicmd->result |= SAM_STAT_CHECK_CONDITION;
		len = (le32_to_cpu(srbreply->sense_data_size) > 
				sizeof(scsicmd->sense_buffer)) ?
				sizeof(scsicmd->sense_buffer) :
				le32_to_cpu(srbreply->sense_data_size);
#ifdef AAC_DETAILED_STATUS_INFO
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		printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
					le32_to_cpu(srbreply->status), len);
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#endif
		memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
		
	}
	/*
	 * OR in the scsi status (already shifted up a bit)
	 */
	scsicmd->result |= le32_to_cpu(srbreply->scsi_status);

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	aac_fib_complete(fibptr);
	aac_fib_free(fibptr);
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	scsicmd->scsi_done(scsicmd);
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}

/**
 *
 * aac_send_scb_fib
 * @scsicmd: the scsi command block
 *
 * This routine will form a FIB and fill in the aac_srb from the 
 * scsicmd passed in.
 */

static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
{
	struct fib* cmd_fibcontext;
	struct aac_dev* dev;
	int status;
	struct aac_srb *srbcmd;
	u16 fibsize;
	u32 flag;
	u32 timeout;

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	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
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	if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
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			scsicmd->device->lun > 7) {
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		scsicmd->result = DID_NO_CONNECT << 16;
		scsicmd->scsi_done(scsicmd);
		return 0;
	}

	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
	switch(scsicmd->sc_data_direction){
	case DMA_TO_DEVICE:
		flag = SRB_DataOut;
		break;
	case DMA_BIDIRECTIONAL:
		flag = SRB_DataIn | SRB_DataOut;
		break;
	case DMA_FROM_DEVICE:
		flag = SRB_DataIn;
		break;
	case DMA_NONE:
	default:	/* shuts up some versions of gcc */
		flag = SRB_NoDataXfer;
		break;
	}


	/*
	 *	Allocate and initialize a Fib then setup a BlockWrite command
	 */
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	if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
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		return -1;
	}
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	aac_fib_init(cmd_fibcontext);
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	srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext);
	srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
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	srbcmd->channel  = cpu_to_le32(aac_logical_to_phys(scmd_channel(scsicmd)));
	srbcmd->id   = cpu_to_le32(scmd_id(scsicmd));
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	srbcmd->lun      = cpu_to_le32(scsicmd->device->lun);
	srbcmd->flags    = cpu_to_le32(flag);
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	timeout = scsicmd->timeout_per_command/HZ;
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	if(timeout == 0){
		timeout = 1;
	}
	srbcmd->timeout  = cpu_to_le32(timeout);  // timeout in seconds
	srbcmd->retry_limit = 0; /* Obsolete parameter */
	srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len);
	
	if( dev->dac_support == 1 ) {
		aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg);
		srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);

		memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
		memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
		/*
		 *	Build Scatter/Gather list
		 */
		fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
			((le32_to_cpu(srbcmd->sg.count) & 0xff) * 
			 sizeof (struct sgentry64));
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		BUG_ON (fibsize > (dev->max_fib_size -
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					sizeof(struct aac_fibhdr)));

		/*
		 *	Now send the Fib to the adapter
		 */
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		status = aac_fib_send(ScsiPortCommand64, cmd_fibcontext,
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				fibsize, FsaNormal, 0, 1,
				  (fib_callback) aac_srb_callback, 
				  (void *) scsicmd);
	} else {
		aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg);
		srbcmd->count = cpu_to_le32(scsicmd->request_bufflen);

		memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
		memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len);
		/*
		 *	Build Scatter/Gather list
		 */
		fibsize = sizeof (struct aac_srb) + 
			(((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) * 
			 sizeof (struct sgentry));
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		BUG_ON (fibsize > (dev->max_fib_size -
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					sizeof(struct aac_fibhdr)));

		/*
		 *	Now send the Fib to the adapter
		 */
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		status = aac_fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1,
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				  (fib_callback) aac_srb_callback, (void *) scsicmd);
	}
	/*
	 *	Check that the command queued to the controller
	 */
	if (status == -EINPROGRESS){
		return 0;
	}

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	printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
	aac_fib_complete(cmd_fibcontext);
	aac_fib_free(cmd_fibcontext);
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	return -1;
}

static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
{
	struct aac_dev *dev;
	unsigned long byte_count = 0;

	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
	// Get rid of old data
	psg->count = 0;
	psg->sg[0].addr = 0;
	psg->sg[0].count = 0;  
	if (scsicmd->use_sg) {
		struct scatterlist *sg;
		int i;
		int sg_count;
		sg = (struct scatterlist *) scsicmd->request_buffer;

		sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
			scsicmd->sc_data_direction);
		psg->count = cpu_to_le32(sg_count);

		byte_count = 0;

		for (i = 0; i < sg_count; i++) {
			psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
			psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
			byte_count += sg_dma_len(sg);
			sg++;
		}
		/* hba wants the size to be exact */
		if(byte_count > scsicmd->request_bufflen){
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			u32 temp = le32_to_cpu(psg->sg[i-1].count) - 
				(byte_count - scsicmd->request_bufflen);
			psg->sg[i-1].count = cpu_to_le32(temp);
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			byte_count = scsicmd->request_bufflen;
		}
		/* Check for command underflow */
		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
			printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
					byte_count, scsicmd->underflow);
		}
	}
	else if(scsicmd->request_bufflen) {
		dma_addr_t addr; 
		addr = pci_map_single(dev->pdev,
				scsicmd->request_buffer,
				scsicmd->request_bufflen,
				scsicmd->sc_data_direction);
		psg->count = cpu_to_le32(1);
		psg->sg[0].addr = cpu_to_le32(addr);
		psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);  
		scsicmd->SCp.dma_handle = addr;
		byte_count = scsicmd->request_bufflen;
	}
	return byte_count;
}


static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
{
	struct aac_dev *dev;
	unsigned long byte_count = 0;
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	u64 addr;
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	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
	// Get rid of old data
	psg->count = 0;
	psg->sg[0].addr[0] = 0;
	psg->sg[0].addr[1] = 0;
	psg->sg[0].count = 0;
	if (scsicmd->use_sg) {
		struct scatterlist *sg;
		int i;
		int sg_count;
		sg = (struct scatterlist *) scsicmd->request_buffer;

		sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
			scsicmd->sc_data_direction);
		psg->count = cpu_to_le32(sg_count);

		byte_count = 0;

		for (i = 0; i < sg_count; i++) {
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			addr = sg_dma_address(sg);
			psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
			psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
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			psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
			byte_count += sg_dma_len(sg);
			sg++;
		}
		/* hba wants the size to be exact */
		if(byte_count > scsicmd->request_bufflen){
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			u32 temp = le32_to_cpu(psg->sg[i-1].count) - 
				(byte_count - scsicmd->request_bufflen);
			psg->sg[i-1].count = cpu_to_le32(temp);
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			byte_count = scsicmd->request_bufflen;
		}
		/* Check for command underflow */
		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
			printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
					byte_count, scsicmd->underflow);
		}
	}
	else if(scsicmd->request_bufflen) {
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		u64 addr; 
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		addr = pci_map_single(dev->pdev,
				scsicmd->request_buffer,
				scsicmd->request_bufflen,
				scsicmd->sc_data_direction);
		psg->count = cpu_to_le32(1);
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		psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
		psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
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		psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);  
		scsicmd->SCp.dma_handle = addr;
		byte_count = scsicmd->request_bufflen;
	}
	return byte_count;
}

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static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
{
	struct Scsi_Host *host = scsicmd->device->host;
	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
	unsigned long byte_count = 0;

	// Get rid of old data
	psg->count = 0;
	psg->sg[0].next = 0;
	psg->sg[0].prev = 0;
	psg->sg[0].addr[0] = 0;
	psg->sg[0].addr[1] = 0;
	psg->sg[0].count = 0;
	psg->sg[0].flags = 0;
	if (scsicmd->use_sg) {
		struct scatterlist *sg;
		int i;
		int sg_count;
		sg = (struct scatterlist *) scsicmd->request_buffer;

		sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
			scsicmd->sc_data_direction);

		for (i = 0; i < sg_count; i++) {
			int count = sg_dma_len(sg);
			u64 addr = sg_dma_address(sg);
			psg->sg[i].next = 0;
			psg->sg[i].prev = 0;
			psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
			psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
			psg->sg[i].count = cpu_to_le32(count);
			psg->sg[i].flags = 0;
			byte_count += count;
			sg++;
		}
		psg->count = cpu_to_le32(sg_count);
		/* hba wants the size to be exact */
		if(byte_count > scsicmd->request_bufflen){
			u32 temp = le32_to_cpu(psg->sg[i-1].count) - 
				(byte_count - scsicmd->request_bufflen);
			psg->sg[i-1].count = cpu_to_le32(temp);
			byte_count = scsicmd->request_bufflen;
		}
		/* Check for command underflow */
		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
			printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
					byte_count, scsicmd->underflow);
		}
	}
	else if(scsicmd->request_bufflen) {
		int count;
		u64 addr;
		scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
				scsicmd->request_buffer,
				scsicmd->request_bufflen,
				scsicmd->sc_data_direction);
		addr = scsicmd->SCp.dma_handle;
		count = scsicmd->request_bufflen;
		psg->count = cpu_to_le32(1);
		psg->sg[0].next = 0;
		psg->sg[0].prev = 0;
		psg->sg[0].addr[1] = cpu_to_le32((u32)(addr>>32));
		psg->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
		psg->sg[0].count = cpu_to_le32(count);
		psg->sg[0].flags = 0;
		byte_count = scsicmd->request_bufflen;
	}
	return byte_count;
}

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#ifdef AAC_DETAILED_STATUS_INFO

struct aac_srb_status_info {
	u32	status;
	char	*str;
};


static struct aac_srb_status_info srb_status_info[] = {
	{ SRB_STATUS_PENDING,		"Pending Status"},
	{ SRB_STATUS_SUCCESS,		"Success"},
	{ SRB_STATUS_ABORTED,		"Aborted Command"},
	{ SRB_STATUS_ABORT_FAILED,	"Abort Failed"},
	{ SRB_STATUS_ERROR,		"Error Event"}, 
	{ SRB_STATUS_BUSY,		"Device Busy"},
	{ SRB_STATUS_INVALID_REQUEST,	"Invalid Request"},
	{ SRB_STATUS_INVALID_PATH_ID,	"Invalid Path ID"},
	{ SRB_STATUS_NO_DEVICE,		"No Device"},
	{ SRB_STATUS_TIMEOUT,		"Timeout"},
	{ SRB_STATUS_SELECTION_TIMEOUT,	"Selection Timeout"},
	{ SRB_STATUS_COMMAND_TIMEOUT,	"Command Timeout"},
	{ SRB_STATUS_MESSAGE_REJECTED,	"Message Rejected"},
	{ SRB_STATUS_BUS_RESET,		"Bus Reset"},
	{ SRB_STATUS_PARITY_ERROR,	"Parity Error"},
	{ SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
	{ SRB_STATUS_NO_HBA,		"No HBA"},
	{ SRB_STATUS_DATA_OVERRUN,	"Data Overrun/Data Underrun"},
	{ SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
	{ SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
	{ SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
	{ SRB_STATUS_REQUEST_FLUSHED,	"Request Flushed"},
	{ SRB_STATUS_DELAYED_RETRY,	"Delayed Retry"},
	{ SRB_STATUS_INVALID_LUN,	"Invalid LUN"}, 
	{ SRB_STATUS_INVALID_TARGET_ID,	"Invalid TARGET ID"},
	{ SRB_STATUS_BAD_FUNCTION,	"Bad Function"},
	{ SRB_STATUS_ERROR_RECOVERY,	"Error Recovery"},
	{ SRB_STATUS_NOT_STARTED,	"Not Started"},
	{ SRB_STATUS_NOT_IN_USE,	"Not In Use"},
    	{ SRB_STATUS_FORCE_ABORT,	"Force Abort"},
	{ SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
	{ 0xff,				"Unknown Error"}
};

char *aac_get_status_string(u32 status)
{
	int i;

	for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){
		if(srb_status_info[i].status == status){
			return srb_status_info[i].str;
		}
	}

	return "Bad Status Code";
}

#endif