5 files changed, 490 insertions, 219 deletions

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 8dcfe4ec35c..0b6fd0b654d 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -169,6 +169,18 @@ 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, 2048, 4096 and 8192. Default is to use suggestion from Firmware.");
 
+int update_interval = 30 * 60;
+module_param(update_interval, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync updates issued to adapter.");
+
+int check_interval = 24 * 60 * 60;
+module_param(check_interval, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health checks.");
+
+int check_reset = 1;
+module_param(check_reset, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(check_reset, "If adapter fails health check, reset the adapter.");
+
 int expose_physicals = -1;
 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays. -1=protect 0=off, 1=on");
@@ -312,11 +324,10 @@ int aac_get_containers(struct aac_dev *dev)
 
 	if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
 		maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
-	fsa_dev_ptr =  kmalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
+	fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
 			GFP_KERNEL);
 	if (!fsa_dev_ptr)
 		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;
@@ -344,21 +355,16 @@ static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigne
 {
 	void *buf;
 	int transfer_len;
-	struct scatterlist *sg = scsicmd->request_buffer;
+	struct scatterlist *sg = scsi_sglist(scsicmd);
+
+	buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+	transfer_len = min(sg->length, len + offset);
 
-	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);
-	}
 	transfer_len -= offset;
 	if (buf && transfer_len > 0)
 		memcpy(buf + offset, data, transfer_len);
 
-	if (scsicmd->use_sg) 
-		kunmap_atomic(buf - sg->offset, KM_IRQ0);
+	kunmap_atomic(buf - sg->offset, KM_IRQ0);
 
 }
 
@@ -451,7 +457,7 @@ static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 {
 	struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
 
-	if (fsa_dev_ptr[scmd_id(scsicmd)].valid)
+	if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
 		return aac_scsi_cmd(scsicmd);
 
 	scsicmd->result = DID_NO_CONNECT << 16;
@@ -459,18 +465,18 @@ static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
 	return 0;
 }
 
-static int _aac_probe_container2(void * context, struct fib * fibptr)
+static void _aac_probe_container2(void * context, struct fib * fibptr)
 {
 	struct fsa_dev_info *fsa_dev_ptr;
 	int (*callback)(struct scsi_cmnd *);
 	struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
 
-	if (!aac_valid_context(scsicmd, fibptr))
-		return 0;
 
-	fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
+	if (!aac_valid_context(scsicmd, fibptr))
+		return;
 
 	scsicmd->SCp.Status = 0;
+	fsa_dev_ptr = fibptr->dev->fsa_dev;
 	if (fsa_dev_ptr) {
 		struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
 		fsa_dev_ptr += scmd_id(scsicmd);
@@ -493,10 +499,11 @@ static int _aac_probe_container2(void * context, struct fib * fibptr)
 	aac_fib_free(fibptr);
 	callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
 	scsicmd->SCp.ptr = NULL;
-	return (*callback)(scsicmd);
+	(*callback)(scsicmd);
+	return;
 }
 
-static int _aac_probe_container1(void * context, struct fib * fibptr)
+static void _aac_probe_container1(void * context, struct fib * fibptr)
 {
 	struct scsi_cmnd * scsicmd;
 	struct aac_mount * dresp;
@@ -506,13 +513,14 @@ static int _aac_probe_container1(void * context, struct fib * fibptr)
 	dresp = (struct aac_mount *) fib_data(fibptr);
 	dresp->mnt[0].capacityhigh = 0;
 	if ((le32_to_cpu(dresp->status) != ST_OK) ||
-	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE))
-		return _aac_probe_container2(context, fibptr);
+	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
+		_aac_probe_container2(context, fibptr);
+		return;
+	}
 	scsicmd = (struct scsi_cmnd *) context;
-	scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 
 	if (!aac_valid_context(scsicmd, fibptr))
-		return 0;
+		return;
 
 	aac_fib_init(fibptr);
 
@@ -527,21 +535,18 @@ static int _aac_probe_container1(void * context, struct fib * fibptr)
 			  sizeof(struct aac_query_mount),
 			  FsaNormal,
 			  0, 1,
-			  (fib_callback) _aac_probe_container2,
+			  _aac_probe_container2,
 			  (void *) scsicmd);
 	/*
 	 *	Check that the command queued to the controller
 	 */
-	if (status == -EINPROGRESS) {
+	if (status == -EINPROGRESS)
 		scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
-		return 0;
-	}
-	if (status < 0) {
+	else if (status < 0) {
 		/* Inherit results from VM_NameServe, if any */
 		dresp->status = cpu_to_le32(ST_OK);
-		return _aac_probe_container2(context, fibptr);
+		_aac_probe_container2(context, fibptr);
 	}
-	return 0;
 }
 
 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
@@ -566,7 +571,7 @@ static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(stru
 			  sizeof(struct aac_query_mount),
 			  FsaNormal,
 			  0, 1,
-			  (fib_callback) _aac_probe_container1,
+			  _aac_probe_container1,
 			  (void *) scsicmd);
 		/*
 		 *	Check that the command queued to the controller
@@ -620,7 +625,7 @@ int aac_probe_container(struct aac_dev *dev, int cid)
 		return -ENOMEM;
 	}
 	scsicmd->list.next = NULL;
-	scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))_aac_probe_container1;
+	scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
 
 	scsicmd->device = scsidev;
 	scsidev->sdev_state = 0;
@@ -825,7 +830,7 @@ static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 	readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 	readcmd->count = cpu_to_le32(count<<9);
 	readcmd->cid = cpu_to_le16(scmd_id(cmd));
-	readcmd->flags = cpu_to_le16(1);
+	readcmd->flags = cpu_to_le16(IO_TYPE_READ);
 	readcmd->bpTotal = 0;
 	readcmd->bpComplete = 0;
 
@@ -904,7 +909,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32
 			  (void *) cmd);
 }
 
-static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
+static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
 {
 	u16 fibsize;
 	struct aac_raw_io *writecmd;
@@ -914,7 +919,9 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 	writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 	writecmd->count = cpu_to_le32(count<<9);
 	writecmd->cid = cpu_to_le16(scmd_id(cmd));
-	writecmd->flags = 0;
+	writecmd->flags = fua ?
+		cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
+		cpu_to_le16(IO_TYPE_WRITE);
 	writecmd->bpTotal = 0;
 	writecmd->bpComplete = 0;
 
@@ -933,7 +940,7 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 			  (void *) cmd);
 }
 
-static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
+static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
 {
 	u16 fibsize;
 	struct aac_write64 *writecmd;
@@ -964,7 +971,7 @@ static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba,
 			  (void *) cmd);
 }
 
-static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
+static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
 {
 	u16 fibsize;
 	struct aac_write *writecmd;
@@ -1041,7 +1048,7 @@ static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
 	struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
 
 	aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
-	srbcmd->count = cpu_to_le32(cmd->request_bufflen);
+	srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
 
 	memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
 	memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
@@ -1069,7 +1076,7 @@ static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
 	struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
 
 	aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
-	srbcmd->count = cpu_to_le32(cmd->request_bufflen);
+	srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
 
 	memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
 	memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
@@ -1172,6 +1179,7 @@ int aac_get_adapter_info(struct aac_dev* dev)
 	}
 
 	if (!dev->in_reset) {
+		char buffer[16];
 		tmp = le32_to_cpu(dev->adapter_info.kernelrev);
 		printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
 			dev->name, 
@@ -1192,16 +1200,23 @@ int aac_get_adapter_info(struct aac_dev* dev)
 			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]));
+		buffer[0] = '\0';
+		if (aac_show_serial_number(
+		  shost_to_class(dev->scsi_host_ptr), buffer))
+			printk(KERN_INFO "%s%d: serial %s",
+			  dev->name, dev->id, buffer);
 		if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
 			printk(KERN_INFO "%s%d: TSID %.*s\n",
 			  dev->name, dev->id,
 			  (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
 			  dev->supplement_adapter_info.VpdInfo.Tsid);
 		}
+		if (!check_reset ||
+		  (dev->supplement_adapter_info.SupportedOptions2 &
+		  le32_to_cpu(AAC_OPTION_IGNORE_RESET))) {
+			printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
+			  dev->name, dev->id);
+		}
 	}
 
 	dev->nondasd_support = 0;
@@ -1332,7 +1347,7 @@ static void io_callback(void *context, struct fib * fibptr)
 	if (!aac_valid_context(scsicmd, fibptr))
 		return;
 
-	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
+	dev = fibptr->dev;
 	cid = scmd_id(scsicmd);
 
 	if (nblank(dprintk(x))) {
@@ -1371,16 +1386,9 @@ static void io_callback(void *context, struct fib * fibptr)
 	}
 
 	BUG_ON(fibptr == NULL);
-		
-	if(scsicmd->use_sg)
-		pci_unmap_sg(dev->pdev, 
-			(struct scatterlist *)scsicmd->request_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);
+
+	scsi_dma_unmap(scsicmd);
+
 	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;
@@ -1498,6 +1506,7 @@ static int aac_write(struct scsi_cmnd * scsicmd)
 {
 	u64 lba;
 	u32 count;
+	int fua;
 	int status;
 	struct aac_dev *dev;
 	struct fib * cmd_fibcontext;
@@ -1512,6 +1521,7 @@ static int aac_write(struct scsi_cmnd * scsicmd)
 		count = scsicmd->cmnd[4];
 		if (count == 0)
 			count = 256;
+		fua = 0;
 	} else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
 		dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
 
@@ -1524,6 +1534,7 @@ static int aac_write(struct scsi_cmnd * scsicmd)
 			(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
 		count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
 			(scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
+		fua = scsicmd->cmnd[1] & 0x8;
 	} else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
 		dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
 
@@ -1531,10 +1542,12 @@ static int aac_write(struct scsi_cmnd * scsicmd)
 		    | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 		count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
 		      | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
+		fua = scsicmd->cmnd[1] & 0x8;
 	} else {
 		dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
 		lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 		count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
+		fua = scsicmd->cmnd[1] & 0x8;
 	}
 	dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
 	  smp_processor_id(), (unsigned long long)lba, jiffies));
@@ -1549,7 +1562,7 @@ static int aac_write(struct scsi_cmnd * scsicmd)
 		return 0;
 	}
 
-	status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count);
+	status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
 
 	/*
 	 *	Check that the command queued to the controller
@@ -1592,7 +1605,7 @@ static void synchronize_callback(void *context, struct fib *fibptr)
 			COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 	else {
 		struct scsi_device *sdev = cmd->device;
-		struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
+		struct aac_dev *dev = fibptr->dev;
 		u32 cid = sdev_id(sdev);
 		printk(KERN_WARNING 
 		     "synchronize_callback: synchronize failed, status = %d\n",
@@ -1699,7 +1712,7 @@ static int aac_synchronize(struct scsi_cmnd *scsicmd)
  
 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 {
-	u32 cid = 0;
+	u32 cid;
 	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;
@@ -1711,15 +1724,15 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 	 *	Test does not apply to ID 16, the pseudo id for the controller
 	 *	itself.
 	 */
-	if (scmd_id(scsicmd) != host->this_id) {
-		if ((scmd_channel(scsicmd) == CONTAINER_CHANNEL)) {
-			if((scmd_id(scsicmd) >= dev->maximum_num_containers) ||
+	cid = scmd_id(scsicmd);
+	if (cid != host->this_id) {
+		if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
+			if((cid >= dev->maximum_num_containers) ||
 					(scsicmd->device->lun != 0)) {
 				scsicmd->result = DID_NO_CONNECT << 16;
 				scsicmd->scsi_done(scsicmd);
 				return 0;
 			}
-			cid = scmd_id(scsicmd);
 
 			/*
 			 *	If the target container doesn't exist, it may have
@@ -1782,7 +1795,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 	{
 		struct inquiry_data inq_data;
 
-		dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scmd_id(scsicmd)));
+		dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
 		memset(&inq_data, 0, sizeof (struct inquiry_data));
 
 		inq_data.inqd_ver = 2;	/* claim compliance to SCSI-2 */
@@ -1794,7 +1807,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		 *	Set the Vendor, Product, and Revision Level
 		 *	see: <vendor>.c i.e. aac.c
 		 */
-		if (scmd_id(scsicmd) == host->this_id) {
+		if (cid == host->this_id) {
 			setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
 			inq_data.inqd_pdt = INQD_PDT_PROC;	/* Processor device */
 			aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
@@ -1886,15 +1899,29 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 
 	case MODE_SENSE:
 	{
-		char mode_buf[4];
+		char mode_buf[7];
+		int mode_buf_length = 4;
 
 		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[2] = 0;	/* Device-specific param,
+					   bit 8: 0/1 = write enabled/protected
+					   bit 4: 0/1 = FUA enabled */
+		if (dev->raw_io_interface)
+			mode_buf[2] = 0x10;
 		mode_buf[3] = 0;	/* Block descriptor length */
-
-		aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
+		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
+		  ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
+			mode_buf[0] = 6;
+			mode_buf[4] = 8;
+			mode_buf[5] = 1;
+			mode_buf[6] = 0x04; /* WCE */
+			mode_buf_length = 7;
+			if (mode_buf_length > scsicmd->cmnd[4])
+				mode_buf_length = scsicmd->cmnd[4];
+		}
+		aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
 
@@ -1902,18 +1929,33 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 	}
 	case MODE_SENSE_10:
 	{
-		char mode_buf[8];
+		char mode_buf[11];
+		int mode_buf_length = 8;
 
 		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[3] = 0;	/* Device-specific param,
+					   bit 8: 0/1 = write enabled/protected
+					   bit 4: 0/1 = FUA enabled */
+		if (dev->raw_io_interface)
+			mode_buf[3] = 0x10;
 		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) */
-		aac_internal_transfer(scsicmd, mode_buf, 0, sizeof(mode_buf));
+		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
+		  ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
+			mode_buf[1] = 9;
+			mode_buf[8] = 8;
+			mode_buf[9] = 1;
+			mode_buf[10] = 0x04; /* WCE */
+			mode_buf_length = 11;
+			if (mode_buf_length > scsicmd->cmnd[8])
+				mode_buf_length = scsicmd->cmnd[8];
+		}
+		aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
 
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
 		scsicmd->scsi_done(scsicmd);
@@ -2136,28 +2178,21 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
 	if (!aac_valid_context(scsicmd, fibptr))
 		return;
 
-	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
-
 	BUG_ON(fibptr == NULL);
 
+	dev = fibptr->dev;
+
 	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->request_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);
+
+	scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
+		       - le32_to_cpu(srbreply->data_xfer_length));
+
+	scsi_dma_unmap(scsicmd);
 
 	/*
 	 * First check the fib status
@@ -2233,7 +2268,7 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
 		break;
 
 	case SRB_STATUS_BUSY:
-		scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
+		scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
 		break;
 
 	case SRB_STATUS_BUS_RESET:
@@ -2343,34 +2378,33 @@ static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
 {
 	struct aac_dev *dev;
 	unsigned long byte_count = 0;
+	int nseg;
 
 	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) {
+	psg->sg[0].count = 0;
+
+	nseg = scsi_dma_map(scsicmd);
+	BUG_ON(nseg < 0);
+	if (nseg) {
 		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);
+		psg->count = cpu_to_le32(nseg);
 
-		for (i = 0; i < sg_count; i++) {
+		scsi_for_each_sg(scsicmd, sg, nseg, 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){
-			u32 temp = le32_to_cpu(psg->sg[i-1].count) - 
-				(byte_count - scsicmd->request_bufflen);
+		if (byte_count > scsi_bufflen(scsicmd)) {
+			u32 temp = le32_to_cpu(psg->sg[i-1].count) -
+				(byte_count - scsi_bufflen(scsicmd));
 			psg->sg[i-1].count = cpu_to_le32(temp);
-			byte_count = scsicmd->request_bufflen;
+			byte_count = scsi_bufflen(scsicmd);
 		}
 		/* Check for command underflow */
 		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
@@ -2378,18 +2412,6 @@ static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
 					byte_count, scsicmd->underflow);
 		}
 	}
-	else if(scsicmd->request_bufflen) {
-		u32 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;
-		psg->count = cpu_to_le32(1);
-		psg->sg[0].addr = cpu_to_le32(addr);
-		psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);  
-		byte_count = scsicmd->request_bufflen;
-	}
 	return byte_count;
 }
 
@@ -2399,6 +2421,7 @@ static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* p
 	struct aac_dev *dev;
 	unsigned long byte_count = 0;
 	u64 addr;
+	int nseg;
 
 	dev = (struct aac_dev *)scsicmd->device->host->hostdata;
 	// Get rid of old data
@@ -2406,31 +2429,28 @@ static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* p
 	psg->sg[0].addr[0] = 0;
 	psg->sg[0].addr[1] = 0;
 	psg->sg[0].count = 0;
-	if (scsicmd->use_sg) {
+
+	nseg = scsi_dma_map(scsicmd);
+	BUG_ON(nseg < 0);
+	if (nseg) {
 		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++) {
+		scsi_for_each_sg(scsicmd, sg, nseg, i) {
 			int count = sg_dma_len(sg);
 			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);
 			psg->sg[i].count = cpu_to_le32(count);
 			byte_count += count;
-			sg++;
 		}
-		psg->count = cpu_to_le32(sg_count);
+		psg->count = cpu_to_le32(nseg);
 		/* 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);
+		if (byte_count > scsi_bufflen(scsicmd)) {
+			u32 temp = le32_to_cpu(psg->sg[i-1].count) -
+				(byte_count - scsi_bufflen(scsicmd));
 			psg->sg[i-1].count = cpu_to_le32(temp);
-			byte_count = scsicmd->request_bufflen;
+			byte_count = scsi_bufflen(scsicmd);
 		}
 		/* Check for command underflow */
 		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
@@ -2438,26 +2458,13 @@ static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* p
 					byte_count, scsicmd->underflow);
 		}
 	}
-	else if(scsicmd->request_bufflen) {
-		scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
-				scsicmd->request_buffer,
-				scsicmd->request_bufflen,
-				scsicmd->sc_data_direction);
-		addr = scsicmd->SCp.dma_handle;
-		psg->count = cpu_to_le32(1);
-		psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
-		psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
-		psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);  
-		byte_count = scsicmd->request_bufflen;
-	}
 	return byte_count;
 }
 
 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;
+	int nseg;
 
 	// Get rid of old data
 	psg->count = 0;
@@ -2467,16 +2474,14 @@ static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw*
 	psg->sg[0].addr[1] = 0;
 	psg->sg[0].count = 0;
 	psg->sg[0].flags = 0;
-	if (scsicmd->use_sg) {
+
+	nseg = scsi_dma_map(scsicmd);
+	BUG_ON(nseg < 0);
+	if (nseg) {
 		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++) {
+		scsi_for_each_sg(scsicmd, sg, nseg, i) {
 			int count = sg_dma_len(sg);
 			u64 addr = sg_dma_address(sg);
 			psg->sg[i].next = 0;
@@ -2486,15 +2491,14 @@ static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw*
 			psg->sg[i].count = cpu_to_le32(count);
 			psg->sg[i].flags = 0;
 			byte_count += count;
-			sg++;
 		}
-		psg->count = cpu_to_le32(sg_count);
+		psg->count = cpu_to_le32(nseg);
 		/* 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);
+		if (byte_count > scsi_bufflen(scsicmd)) {
+			u32 temp = le32_to_cpu(psg->sg[i-1].count) -
+				(byte_count - scsi_bufflen(scsicmd));
 			psg->sg[i-1].count = cpu_to_le32(temp);
-			byte_count = scsicmd->request_bufflen;
+			byte_count = scsi_bufflen(scsicmd);
 		}
 		/* Check for command underflow */
 		if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
@@ -2502,24 +2506,6 @@ static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw*
 					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;
 }
 
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index c81edf36913..f1d3b66af87 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -12,8 +12,8 @@
  *----------------------------------------------------------------------------*/
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 2437
-# define AAC_DRIVER_BRANCH "-mh4"
+# define AAC_DRIVER_BUILD 2447
+# define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
 
@@ -464,12 +464,12 @@ struct adapter_ops
 	int  (*adapter_restart)(struct aac_dev *dev, int bled);
 	/* Transport operations */
 	int  (*adapter_ioremap)(struct aac_dev * dev, u32 size);
-	irqreturn_t (*adapter_intr)(int irq, void *dev_id);
+	irq_handler_t adapter_intr;
 	/* Packet operations */
 	int  (*adapter_deliver)(struct fib * fib);
 	int  (*adapter_bounds)(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba);
 	int  (*adapter_read)(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count);
-	int  (*adapter_write)(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count);
+	int  (*adapter_write)(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua);
 	int  (*adapter_scsi)(struct fib * fib, struct scsi_cmnd * cmd);
 	/* Administrative operations */
 	int  (*adapter_comm)(struct aac_dev * dev, int comm);
@@ -860,10 +860,12 @@ struct aac_supplement_adapter_info
 	__le32	FlashFirmwareBootBuild;
 	u8	MfgPcbaSerialNo[12];
 	u8	MfgWWNName[8];
-	__le32	MoreFeatureBits;
+	__le32	SupportedOptions2;
 	__le32	ReservedGrowth[1];
 };
 #define AAC_FEATURE_FALCON	0x00000010
+#define AAC_OPTION_MU_RESET	0x00000001
+#define AAC_OPTION_IGNORE_RESET	0x00000002
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -1054,8 +1056,8 @@ struct aac_dev
 #define aac_adapter_read(fib,cmd,lba,count) \
 	((fib)->dev)->a_ops.adapter_read(fib,cmd,lba,count)
 
-#define aac_adapter_write(fib,cmd,lba,count) \
-	((fib)->dev)->a_ops.adapter_write(fib,cmd,lba,count)
+#define aac_adapter_write(fib,cmd,lba,count,fua) \
+	((fib)->dev)->a_ops.adapter_write(fib,cmd,lba,count,fua)
 
 #define aac_adapter_scsi(fib,cmd) \
 	((fib)->dev)->a_ops.adapter_scsi(fib,cmd)
@@ -1213,6 +1215,9 @@ struct aac_write64
 	__le32 		block;
 	__le16		pad;
 	__le16		flags;
+#define	IO_TYPE_WRITE 0x00000000
+#define	IO_TYPE_READ  0x00000001
+#define	IO_SUREWRITE  0x00000008
 	struct sgmap64	sg;	// Must be last in struct because it is variable
 };
 struct aac_write_reply
@@ -1257,6 +1262,19 @@ struct aac_synchronize_reply {
 	u8		data[16];
 };
 
+#define CT_PAUSE_IO    65
+#define CT_RELEASE_IO  66
+struct aac_pause {
+	__le32		command;	/* VM_ContainerConfig */
+	__le32		type;		/* CT_PAUSE_IO */
+	__le32		timeout;	/* 10ms ticks */
+	__le32		min;
+	__le32		noRescan;
+	__le32		parm3;
+	__le32		parm4;
+	__le32		count;	/* sizeof(((struct aac_pause_reply *)NULL)->data) */
+};
+
 struct aac_srb
 {
 	__le32		function;
@@ -1804,6 +1822,10 @@ int aac_get_config_status(struct aac_dev *dev, int commit_flag);
 int aac_get_containers(struct aac_dev *dev);
 int aac_scsi_cmd(struct scsi_cmnd *cmd);
 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg);
+#ifndef shost_to_class
+#define shost_to_class(shost) &shost->shost_classdev
+#endif
+ssize_t aac_show_serial_number(struct class_device *class_dev, char *buf);
 int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg);
 int aac_rx_init(struct aac_dev *dev);
 int aac_rkt_init(struct aac_dev *dev);
@@ -1813,6 +1835,7 @@ int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw
 unsigned int aac_response_normal(struct aac_queue * q);
 unsigned int aac_command_normal(struct aac_queue * q);
 unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index);
+int aac_reset_adapter(struct aac_dev * dev, int forced);
 int aac_check_health(struct aac_dev * dev);
 int aac_command_thread(void *data);
 int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context *fibctx);
@@ -1832,3 +1855,6 @@ extern int aif_timeout;
 extern int expose_physicals;
 extern int aac_reset_devices;
 extern int aac_commit;
+extern int update_interval;
+extern int check_interval;
+extern int check_reset;
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 9aca57eda94..d510839c0bb 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -1021,7 +1021,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 
 }
 
-static int _aac_reset_adapter(struct aac_dev *aac)
+static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 {
 	int index, quirks;
 	int retval;
@@ -1029,25 +1029,32 @@ static int _aac_reset_adapter(struct aac_dev *aac)
 	struct scsi_device *dev;
 	struct scsi_cmnd *command;
 	struct scsi_cmnd *command_list;
+	int jafo = 0;
 
 	/*
 	 * Assumptions:
-	 *	- host is locked.
+	 *	- host is locked, unless called by the aacraid thread.
+	 *	  (a matter of convenience, due to legacy issues surrounding
+	 *	  eh_host_adapter_reset).
 	 *	- in_reset is asserted, so no new i/o is getting to the
 	 *	  card.
-	 *	- The card is dead.
+	 *	- The card is dead, or will be very shortly ;-/ so no new
+	 *	  commands are completing in the interrupt service.
 	 */
 	host = aac->scsi_host_ptr;
 	scsi_block_requests(host);
 	aac_adapter_disable_int(aac);
-	spin_unlock_irq(host->host_lock);
-	kthread_stop(aac->thread);
+	if (aac->thread->pid != current->pid) {
+		spin_unlock_irq(host->host_lock);
+		kthread_stop(aac->thread);
+		jafo = 1;
+	}
 
 	/*
 	 *	If a positive health, means in a known DEAD PANIC
 	 * state and the adapter could be reset to `try again'.
 	 */
-	retval = aac_adapter_restart(aac, aac_adapter_check_health(aac));
+	retval = aac_adapter_restart(aac, forced ? 0 : aac_adapter_check_health(aac));
 
 	if (retval)
 		goto out;
@@ -1104,10 +1111,12 @@ static int _aac_reset_adapter(struct aac_dev *aac)
 	if (aac_get_driver_ident(index)->quirks & AAC_QUIRK_31BIT)
 		if ((retval = pci_set_dma_mask(aac->pdev, DMA_32BIT_MASK)))
 			goto out;
-	aac->thread = kthread_run(aac_command_thread, aac, aac->name);
-	if (IS_ERR(aac->thread)) {
-		retval = PTR_ERR(aac->thread);
-		goto out;
+	if (jafo) {
+		aac->thread = kthread_run(aac_command_thread, aac, aac->name);
+		if (IS_ERR(aac->thread)) {
+			retval = PTR_ERR(aac->thread);
+			goto out;
+		}
 	}
 	(void)aac_get_adapter_info(aac);
 	quirks = aac_get_driver_ident(index)->quirks;
@@ -1150,7 +1159,98 @@ static int _aac_reset_adapter(struct aac_dev *aac)
 out:
 	aac->in_reset = 0;
 	scsi_unblock_requests(host);
-	spin_lock_irq(host->host_lock);
+	if (jafo) {
+		spin_lock_irq(host->host_lock);
+	}
+	return retval;
+}
+
+int aac_reset_adapter(struct aac_dev * aac, int forced)
+{
+	unsigned long flagv = 0;
+	int retval;
+	struct Scsi_Host * host;
+
+	if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0)
+		return -EBUSY;
+
+	if (aac->in_reset) {
+		spin_unlock_irqrestore(&aac->fib_lock, flagv);
+		return -EBUSY;
+	}
+	aac->in_reset = 1;
+	spin_unlock_irqrestore(&aac->fib_lock, flagv);
+
+	/*
+	 * Wait for all commands to complete to this specific
+	 * target (block maximum 60 seconds). Although not necessary,
+	 * it does make us a good storage citizen.
+	 */
+	host = aac->scsi_host_ptr;
+	scsi_block_requests(host);
+	if (forced < 2) for (retval = 60; retval; --retval) {
+		struct scsi_device * dev;
+		struct scsi_cmnd * command;
+		int active = 0;
+
+		__shost_for_each_device(dev, host) {
+			spin_lock_irqsave(&dev->list_lock, flagv);
+			list_for_each_entry(command, &dev->cmd_list, list) {
+				if (command->SCp.phase == AAC_OWNER_FIRMWARE) {
+					active++;
+					break;
+				}
+			}
+			spin_unlock_irqrestore(&dev->list_lock, flagv);
+			if (active)
+				break;
+
+		}
+		/*
+		 * We can exit If all the commands are complete
+		 */
+		if (active == 0)
+			break;
+		ssleep(1);
+	}
+
+	/* Quiesce build, flush cache, write through mode */
+	aac_send_shutdown(aac);
+	spin_lock_irqsave(host->host_lock, flagv);
+	retval = _aac_reset_adapter(aac, forced);
+	spin_unlock_irqrestore(host->host_lock, flagv);
+
+	if (retval == -ENODEV) {
+		/* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */
+		struct fib * fibctx = aac_fib_alloc(aac);
+		if (fibctx) {
+			struct aac_pause *cmd;
+			int status;
+
+			aac_fib_init(fibctx);
+
+			cmd = (struct aac_pause *) fib_data(fibctx);
+
+			cmd->command = cpu_to_le32(VM_ContainerConfig);
+			cmd->type = cpu_to_le32(CT_PAUSE_IO);
+			cmd->timeout = cpu_to_le32(1);
+			cmd->min = cpu_to_le32(1);
+			cmd->noRescan = cpu_to_le32(1);
+			cmd->count = cpu_to_le32(0);
+
+			status = aac_fib_send(ContainerCommand,
+			  fibctx,
+			  sizeof(struct aac_pause),
+			  FsaNormal,
+			  -2 /* Timeout silently */, 1,
+			  NULL, NULL);
+
+			if (status >= 0)
+				aac_fib_complete(fibctx);
+			aac_fib_free(fibctx);
+		}
+	}
+
 	return retval;
 }
 
@@ -1270,10 +1370,15 @@ int aac_check_health(struct aac_dev * aac)
 
 	printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED);
 
+	if (!check_reset || (aac->supplement_adapter_info.SupportedOptions2 &
+	  le32_to_cpu(AAC_OPTION_IGNORE_RESET)))
+		goto out;
 	host = aac->scsi_host_ptr;
-	spin_lock_irqsave(host->host_lock, flagv);
-	BlinkLED = _aac_reset_adapter(aac);
-	spin_unlock_irqrestore(host->host_lock, flagv);
+	if (aac->thread->pid != current->pid)
+		spin_lock_irqsave(host->host_lock, flagv);
+	BlinkLED = _aac_reset_adapter(aac, 0);
+	if (aac->thread->pid != current->pid)
+		spin_unlock_irqrestore(host->host_lock, flagv);
 	return BlinkLED;
 
 out:
@@ -1300,6 +1405,9 @@ int aac_command_thread(void *data)
 	struct aac_fib_context *fibctx;
 	unsigned long flags;
 	DECLARE_WAITQUEUE(wait, current);
+	unsigned long next_jiffies = jiffies + HZ;
+	unsigned long next_check_jiffies = next_jiffies;
+	long difference = HZ;
 
 	/*
 	 *	We can only have one thread per adapter for AIF's.
@@ -1368,7 +1476,7 @@ int aac_command_thread(void *data)
 				     cpu_to_le32(AifCmdJobProgress))) {
 					aac_handle_aif(dev, fib);
 				}
- 				
+
 				time_now = jiffies/HZ;
 
 				/*
@@ -1507,11 +1615,79 @@ int aac_command_thread(void *data)
 		 *	There are no more AIF's
 		 */
 		spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags);
-		schedule();
+
+		/*
+		 *	Background activity
+		 */
+		if ((time_before(next_check_jiffies,next_jiffies))
+		 && ((difference = next_check_jiffies - jiffies) <= 0)) {
+			next_check_jiffies = next_jiffies;
+			if (aac_check_health(dev) == 0) {
+				difference = ((long)(unsigned)check_interval)
+					   * HZ;
+				next_check_jiffies = jiffies + difference;
+			} else if (!dev->queues)
+				break;
+		}
+		if (!time_before(next_check_jiffies,next_jiffies)
+		 && ((difference = next_jiffies - jiffies) <= 0)) {
+			struct timeval now;
+			int ret;
+
+			/* Don't even try to talk to adapter if its sick */
+			ret = aac_check_health(dev);
+			if (!ret && !dev->queues)
+				break;
+			next_check_jiffies = jiffies
+					   + ((long)(unsigned)check_interval)
+					   * HZ;
+			do_gettimeofday(&now);
+
+			/* Synchronize our watches */
+			if (((1000000 - (1000000 / HZ)) > now.tv_usec)
+			 && (now.tv_usec > (1000000 / HZ)))
+				difference = (((1000000 - now.tv_usec) * HZ)
+				  + 500000) / 1000000;
+			else if (ret == 0) {
+				struct fib *fibptr;
+
+				if ((fibptr = aac_fib_alloc(dev))) {
+					u32 * info;
+
+					aac_fib_init(fibptr);
+
+					info = (u32 *) fib_data(fibptr);
+					if (now.tv_usec > 500000)
+						++now.tv_sec;
+
+					*info = cpu_to_le32(now.tv_sec);
+
+					(void)aac_fib_send(SendHostTime,
+						fibptr,
+						sizeof(*info),
+						FsaNormal,
+						1, 1,
+						NULL,
+						NULL);
+					aac_fib_complete(fibptr);
+					aac_fib_free(fibptr);
+				}
+				difference = (long)(unsigned)update_interval*HZ;
+			} else {
+				/* retry shortly */
+				difference = 10 * HZ;
+			}
+			next_jiffies = jiffies + difference;
+			if (time_before(next_check_jiffies,next_jiffies))
+				difference = next_check_jiffies - jiffies;
+		}
+		if (difference <= 0)
+			difference = 1;
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(difference);
 
 		if (kthread_should_stop())
 			break;
-		set_current_state(TASK_INTERRUPTIBLE);
 	}
 	if (dev->queues)
 		remove_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait);
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 5c487ff096c..d76e1a8cb93 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -39,10 +39,8 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/dma-mapping.h>
 #include <linux/syscalls.h>
 #include <linux/delay.h>
-#include <linux/smp_lock.h>
 #include <linux/kthread.h>
 #include <asm/semaphore.h>
 
@@ -223,12 +221,12 @@ static struct aac_driver_ident aac_drivers[] = {
 	{ aac_rx_init, "percraid", "DELL    ", "PERC 320/DC     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Perc 320/DC*/
 	{ aac_sa_init, "aacraid",  "ADAPTEC ", "Adaptec 5400S   ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
 	{ aac_sa_init, "aacraid",  "ADAPTEC ", "AAC-364         ", 4, AAC_QUIRK_34SG }, /* Adaptec 5400S (Mustang)*/
-	{ aac_sa_init, "percraid", "DELL    ", "PERCRAID        ", 4, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Dell PERC2/QC */
+	{ aac_sa_init, "percraid", "DELL    ", "PERCRAID        ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
 	{ aac_sa_init, "hpnraid",  "HP      ", "NetRAID         ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
 
 	{ aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Dell Catchall */
 	{ aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend Catchall */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec Catch All */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Catch All */
 	{ aac_rkt_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Rocket Catch All */
 	{ aac_nark_init, "aacraid", "ADAPTEC ", "RAID            ", 2 } /* Adaptec NEMER/ARK Catch All */
 };
@@ -403,10 +401,6 @@ static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
 
 static int aac_slave_configure(struct scsi_device *sdev)
 {
-	if (sdev_channel(sdev) == CONTAINER_CHANNEL) {
-		sdev->skip_ms_page_8 = 1;
-		sdev->skip_ms_page_3f = 1;
-	}
 	if ((sdev->type == TYPE_DISK) &&
 			(sdev_channel(sdev) != CONTAINER_CHANNEL)) {
 		if (expose_physicals == 0)
@@ -450,6 +444,43 @@ static int aac_slave_configure(struct scsi_device *sdev)
 	return 0;
 }
 
+/**
+ *	aac_change_queue_depth		-	alter queue depths
+ *	@sdev:	SCSI device we are considering
+ *	@depth:	desired queue depth
+ *
+ *	Alters queue depths for target device based on the host adapter's
+ *	total capacity and the queue depth supported by the target device.
+ */
+
+static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
+{
+	if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
+	    (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
+		struct scsi_device * dev;
+		struct Scsi_Host *host = sdev->host;
+		unsigned num = 0;
+
+		__shost_for_each_device(dev, host) {
+			if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
+			    (sdev_channel(dev) == CONTAINER_CHANNEL))
+				++num;
+			++num;
+		}
+		if (num >= host->can_queue)
+			num = host->can_queue - 1;
+		if (depth > (host->can_queue - num))
+			depth = host->can_queue - num;
+		if (depth > 256)
+			depth = 256;
+		else if (depth < 2)
+			depth = 2;
+		scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
+	} else
+		scsi_adjust_queue_depth(sdev, 0, 1);
+	return sdev->queue_depth;
+}
+
 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
 {
 	struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
@@ -548,6 +579,14 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
 		ssleep(1);
 	}
 	printk(KERN_ERR "%s: SCSI bus appears hung\n", AAC_DRIVERNAME);
+	/*
+	 * This adapter needs a blind reset, only do so for Adapters that
+	 * support a register, instead of a commanded, reset.
+	 */
+	if ((aac->supplement_adapter_info.SupportedOptions2 &
+	  le32_to_cpu(AAC_OPTION_MU_RESET|AAC_OPTION_IGNORE_RESET)) ==
+	  le32_to_cpu(AAC_OPTION_MU_RESET))
+		aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
 	return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
 }
 
@@ -731,15 +770,21 @@ static ssize_t aac_show_bios_version(struct class_device *class_dev,
 	return len;
 }
 
-static ssize_t aac_show_serial_number(struct class_device *class_dev,
-		char *buf)
+ssize_t aac_show_serial_number(struct class_device *class_dev, char *buf)
 {
 	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
 	int len = 0;
 
 	if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
-		len = snprintf(buf, PAGE_SIZE, "%x\n",
+		len = snprintf(buf, PAGE_SIZE, "%06X\n",
 		  le32_to_cpu(dev->adapter_info.serial[0]));
+	if (len &&
+	  !memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
+	    sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)+2-len],
+	  buf, len))
+		len = snprintf(buf, PAGE_SIZE, "%.*s\n",
+		  (int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo),
+		  dev->supplement_adapter_info.MfgPcbaSerialNo);
 	return len;
 }
 
@@ -755,6 +800,31 @@ static ssize_t aac_show_max_id(struct class_device *class_dev, char *buf)
 	  class_to_shost(class_dev)->max_id);
 }
 
+static ssize_t aac_store_reset_adapter(struct class_device *class_dev,
+		const char *buf, size_t count)
+{
+	int retval = -EACCES;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return retval;
+	retval = aac_reset_adapter((struct aac_dev*)class_to_shost(class_dev)->hostdata, buf[0] == '!');
+	if (retval >= 0)
+		retval = count;
+	return retval;
+}
+
+static ssize_t aac_show_reset_adapter(struct class_device *class_dev,
+		char *buf)
+{
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+	int len, tmp;
+
+	tmp = aac_adapter_check_health(dev);
+	if ((tmp == 0) && dev->in_reset)
+		tmp = -EBUSY;
+	len = snprintf(buf, PAGE_SIZE, "0x%x", tmp);
+	return len;
+}
 
 static struct class_device_attribute aac_model = {
 	.attr = {
@@ -812,6 +882,14 @@ static struct class_device_attribute aac_max_id = {
 	},
 	.show = aac_show_max_id,
 };
+static struct class_device_attribute aac_reset = {
+	.attr = {
+		.name = "reset_host",
+		.mode = S_IWUSR|S_IRUGO,
+	},
+	.store = aac_store_reset_adapter,
+	.show = aac_show_reset_adapter,
+};
 
 static struct class_device_attribute *aac_attrs[] = {
 	&aac_model,
@@ -822,6 +900,7 @@ static struct class_device_attribute *aac_attrs[] = {
 	&aac_serial_number,
 	&aac_max_channel,
 	&aac_max_id,
+	&aac_reset,
 	NULL
 };
 
@@ -848,6 +927,7 @@ static struct scsi_host_template aac_driver_template = {
 	.bios_param     		= aac_biosparm,	
 	.shost_attrs			= aac_attrs,
 	.slave_configure		= aac_slave_configure,
+	.change_queue_depth		= aac_change_queue_depth,
 	.eh_abort_handler		= aac_eh_abort,
 	.eh_host_reset_handler		= aac_eh_reset,
 	.can_queue      		= AAC_NUM_IO_FIB,	
@@ -1086,7 +1166,7 @@ static int __init aac_init(void)
 {
 	int error;
 	
-	printk(KERN_INFO "Adaptec %s driver (%s)\n",
+	printk(KERN_INFO "Adaptec %s driver %s\n",
 	  AAC_DRIVERNAME, aac_driver_version);
 
 	error = pci_register_driver(&aac_pci_driver);
diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index ae978a373c5..ebc65b9fea9 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -464,21 +464,24 @@ static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
 {
 	u32 var;
 
-	if (bled)
-		printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
-			dev->name, dev->id, bled);
-	else {
-		bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
-		  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
-		if (!bled && (var != 0x00000001))
-			bled = -EINVAL;
-	}
-	if (bled && (bled != -ETIMEDOUT))
-		bled = aac_adapter_sync_cmd(dev, IOP_RESET,
-		  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
+	if (!(dev->supplement_adapter_info.SupportedOptions2 &
+	  le32_to_cpu(AAC_OPTION_MU_RESET)) || (bled >= 0) || (bled == -2)) {
+		if (bled)
+			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
+				dev->name, dev->id, bled);
+		else {
+			bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
+			  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
+			if (!bled && (var != 0x00000001))
+				bled = -EINVAL;
+		}
+		if (bled && (bled != -ETIMEDOUT))
+			bled = aac_adapter_sync_cmd(dev, IOP_RESET,
+			  0, 0, 0, 0, 0, 0, &var, NULL, NULL, NULL, NULL);
 
-	if (bled && (bled != -ETIMEDOUT))
-		return -EINVAL;
+		if (bled && (bled != -ETIMEDOUT))
+			return -EINVAL;
+	}
 	if (bled || (var == 0x3803000F)) { /* USE_OTHER_METHOD */
 		rx_writel(dev, MUnit.reserved2, 3);
 		msleep(5000); /* Delay 5 seconds */
@@ -596,7 +599,7 @@ int _aac_rx_init(struct aac_dev *dev)
 		}
 		msleep(1);
 	}
-	if (restart)
+	if (restart && aac_commit)
 		aac_commit = 1;
 	/*
 	 *	Fill in the common function dispatch table.