Automatic merge of ../scsi-misc-2.6-old/

86 files changed, 11708 insertions, 17415 deletions

diff --git a/drivers/block/elevator.c b/drivers/block/elevator.c
index 6b79b431462..8c51d1ccebb 100644
--- a/drivers/block/elevator.c
+++ b/drivers/block/elevator.c
@@ -291,6 +291,13 @@ void elv_requeue_request(request_queue_t *q, struct request *rq)
 	}
 
 	/*
+	 * the request is prepped and may have some resources allocated.
+	 * allowing unprepped requests to pass this one may cause resource
+	 * deadlock.  turn on softbarrier.
+	 */
+	rq->flags |= REQ_SOFTBARRIER;
+
+	/*
 	 * if iosched has an explicit requeue hook, then use that. otherwise
 	 * just put the request at the front of the queue
 	 */
@@ -386,6 +393,12 @@ struct request *elv_next_request(request_queue_t *q)
 		if (ret == BLKPREP_OK) {
 			break;
 		} else if (ret == BLKPREP_DEFER) {
+			/*
+			 * the request may have been (partially) prepped.
+			 * we need to keep this request in the front to
+			 * avoid resource deadlock.  turn on softbarrier.
+			 */
+			rq->flags |= REQ_SOFTBARRIER;
 			rq = NULL;
 			break;
 		} else if (ret == BLKPREP_KILL) {
diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c
index 11ef9d9ea13..f20eba22b14 100644
--- a/drivers/block/ll_rw_blk.c
+++ b/drivers/block/ll_rw_blk.c
@@ -2038,7 +2038,6 @@ EXPORT_SYMBOL(blk_requeue_request);
  * @rq:		request to be inserted
  * @at_head:	insert request at head or tail of queue
  * @data:	private data
- * @reinsert:	true if request it a reinsertion of previously processed one
  *
  * Description:
  *    Many block devices need to execute commands asynchronously, so they don't
@@ -2053,8 +2052,9 @@ EXPORT_SYMBOL(blk_requeue_request);
  *    host that is unable to accept a particular command.
  */
 void blk_insert_request(request_queue_t *q, struct request *rq,
-			int at_head, void *data, int reinsert)
+			int at_head, void *data)
 {
+	int where = at_head ? ELEVATOR_INSERT_FRONT : ELEVATOR_INSERT_BACK;
 	unsigned long flags;
 
 	/*
@@ -2071,20 +2071,12 @@ void blk_insert_request(request_queue_t *q, struct request *rq,
 	/*
 	 * If command is tagged, release the tag
 	 */
-	if (reinsert)
-		blk_requeue_request(q, rq);
-	else {
-		int where = ELEVATOR_INSERT_BACK;
-
-		if (at_head)
-			where = ELEVATOR_INSERT_FRONT;
+	if (blk_rq_tagged(rq))
+		blk_queue_end_tag(q, rq);
 
-		if (blk_rq_tagged(rq))
-			blk_queue_end_tag(q, rq);
+	drive_stat_acct(rq, rq->nr_sectors, 1);
+	__elv_add_request(q, rq, where, 0);
 
-		drive_stat_acct(rq, rq->nr_sectors, 1);
-		__elv_add_request(q, rq, where, 0);
-	}
 	if (blk_queue_plugged(q))
 		__generic_unplug_device(q);
 	else
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 202a5a74ad3..fa49d62626b 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -723,7 +723,7 @@ static int pd_special_command(struct pd_unit *disk,
 	rq.ref_count = 1;
 	rq.waiting = &wait;
 	rq.end_io = blk_end_sync_rq;
-	blk_insert_request(disk->gd->queue, &rq, 0, func, 0);
+	blk_insert_request(disk->gd->queue, &rq, 0, func);
 	wait_for_completion(&wait);
 	rq.waiting = NULL;
 	if (rq.errors)
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 797f5988c2b..5ed3a637945 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -614,7 +614,7 @@ static int carm_array_info (struct carm_host *host, unsigned int array_idx)
 	spin_unlock_irq(&host->lock);
 
 	DPRINTK("blk_insert_request, tag == %u\n", idx);
-	blk_insert_request(host->oob_q, crq->rq, 1, crq, 0);
+	blk_insert_request(host->oob_q, crq->rq, 1, crq);
 
 	return 0;
 
@@ -653,7 +653,7 @@ static int carm_send_special (struct carm_host *host, carm_sspc_t func)
 	crq->msg_bucket = (u32) rc;
 
 	DPRINTK("blk_insert_request, tag == %u\n", idx);
-	blk_insert_request(host->oob_q, crq->rq, 1, crq, 0);
+	blk_insert_request(host->oob_q, crq->rq, 1, crq);
 
 	return 0;
 }
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 00c7b958361..aa941025072 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -1070,7 +1070,7 @@ static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid, quadlet_
 static __inline__ int sbp2_command_conversion_device_type(u8 device_type)
 {
 	return (((device_type == TYPE_DISK) ||
-		 (device_type == TYPE_SDAD) ||
+		 (device_type == TYPE_RBC) ||
 		 (device_type == TYPE_ROM)) ? 1:0);
 }
 
@@ -2111,102 +2111,6 @@ static int sbp2_send_command(struct scsi_id_instance_data *scsi_id,
  */
 static void sbp2_check_sbp2_command(struct scsi_id_instance_data *scsi_id, unchar *cmd)
 {
-	unchar new_cmd[16];
-	u8 device_type = SBP2_DEVICE_TYPE (scsi_id->sbp2_device_type_and_lun);
-
-	SBP2_DEBUG("sbp2_check_sbp2_command");
-
-	switch (*cmd) {
-
-		case READ_6:
-
-			if (sbp2_command_conversion_device_type(device_type)) {
-
-				SBP2_DEBUG("Convert READ_6 to READ_10");
-
-				/*
-				 * Need to turn read_6 into read_10
-				 */
-				new_cmd[0] = 0x28;
-				new_cmd[1] = (cmd[1] & 0xe0);
-				new_cmd[2] = 0x0;
-				new_cmd[3] = (cmd[1] & 0x1f);
-				new_cmd[4] = cmd[2];
-				new_cmd[5] = cmd[3];
-				new_cmd[6] = 0x0;
-				new_cmd[7] = 0x0;
-				new_cmd[8] = cmd[4];
-				new_cmd[9] = cmd[5];
-
-				memcpy(cmd, new_cmd, 10);
-
-			}
-
-			break;
-
-		case WRITE_6:
-
-			if (sbp2_command_conversion_device_type(device_type)) {
-
-				SBP2_DEBUG("Convert WRITE_6 to WRITE_10");
-
-				/*
-				 * Need to turn write_6 into write_10
-				 */
-				new_cmd[0] = 0x2a;
-				new_cmd[1] = (cmd[1] & 0xe0);
-				new_cmd[2] = 0x0;
-				new_cmd[3] = (cmd[1] & 0x1f);
-				new_cmd[4] = cmd[2];
-				new_cmd[5] = cmd[3];
-				new_cmd[6] = 0x0;
-				new_cmd[7] = 0x0;
-				new_cmd[8] = cmd[4];
-				new_cmd[9] = cmd[5];
-
-				memcpy(cmd, new_cmd, 10);
-
-			}
-
-			break;
-
-		case MODE_SENSE:
-
-			if (sbp2_command_conversion_device_type(device_type)) {
-
-				SBP2_DEBUG("Convert MODE_SENSE_6 to MODE_SENSE_10");
-
-				/*
-				 * Need to turn mode_sense_6 into mode_sense_10
-				 */
-				new_cmd[0] = 0x5a;
-				new_cmd[1] = cmd[1];
-				new_cmd[2] = cmd[2];
-				new_cmd[3] = 0x0;
-				new_cmd[4] = 0x0;
-				new_cmd[5] = 0x0;
-				new_cmd[6] = 0x0;
-				new_cmd[7] = 0x0;
-				new_cmd[8] = cmd[4];
-				new_cmd[9] = cmd[5];
-
-				memcpy(cmd, new_cmd, 10);
-
-			}
-
-			break;
-
-		case MODE_SELECT:
-
-			/*
-			 * TODO. Probably need to change mode select to 10 byte version
-			 */
-
-		default:
-			break;
-	}
-
-	return;
 }
 
 /*
@@ -2247,7 +2151,6 @@ static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
 				     struct scsi_cmnd *SCpnt)
 {
 	u8 *scsi_buf = SCpnt->request_buffer;
-	u8 device_type = SBP2_DEVICE_TYPE (scsi_id->sbp2_device_type_and_lun);
 
 	SBP2_DEBUG("sbp2_check_sbp2_response");
 
@@ -2272,14 +2175,6 @@ static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
 			}
 
 			/*
-			 * Check for Simple Direct Access Device and change it to TYPE_DISK
-			 */
-			if ((scsi_buf[0] & 0x1f) == TYPE_SDAD) {
-				SBP2_DEBUG("Changing TYPE_SDAD to TYPE_DISK");
-				scsi_buf[0] &= 0xe0;
-			}
-
-			/*
 			 * Fix ansi revision and response data format
 			 */
 			scsi_buf[2] |= 2;
@@ -2287,27 +2182,6 @@ static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
 
 			break;
 
-		case MODE_SENSE:
-
-			if (sbp2_command_conversion_device_type(device_type)) {
-
-				SBP2_DEBUG("Modify mode sense response (10 byte version)");
-
-				scsi_buf[0] = scsi_buf[1];	/* Mode data length */
-				scsi_buf[1] = scsi_buf[2];	/* Medium type */
-				scsi_buf[2] = scsi_buf[3];	/* Device specific parameter */
-				scsi_buf[3] = scsi_buf[7];	/* Block descriptor length */
-				memcpy(scsi_buf + 4, scsi_buf + 8, scsi_buf[0]);
-			}
-
-			break;
-
-		case MODE_SELECT:
-
-			/*
-			 * TODO. Probably need to change mode select to 10 byte version
-			 */
-
 		default:
 			break;
 	}
@@ -2690,7 +2564,8 @@ static void sbp2scsi_complete_command(struct scsi_id_instance_data *scsi_id,
 static int sbp2scsi_slave_configure (struct scsi_device *sdev)
 {
 	blk_queue_dma_alignment(sdev->request_queue, (512 - 1));
-
+	sdev->use_10_for_rw = 1;
+	sdev->use_10_for_ms = 1;
 	return 0;
 }
 
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index a84b039a05b..cd425be7484 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -266,10 +266,6 @@ struct sbp2_status_block {
 #define SBP2_MAX_UDS_PER_NODE		16	/* Maximum scsi devices per node */
 #define SBP2_MAX_SECTORS		255	/* Max sectors supported */
 
-#ifndef TYPE_SDAD
-#define TYPE_SDAD			0x0e	/* simplified direct access device */
-#endif
-
 /*
  * SCSI direction table...
  * (now used as a back-up in case the direction passed down from above is "unknown")
diff --git a/drivers/message/fusion/Kconfig b/drivers/message/fusion/Kconfig
index 452418b24d7..33f209a39cb 100644
--- a/drivers/message/fusion/Kconfig
+++ b/drivers/message/fusion/Kconfig
@@ -2,34 +2,54 @@
 menu "Fusion MPT device support"
 
 config FUSION
-	tristate "Fusion MPT (base + ScsiHost) drivers"
+	bool
+	default n
+
+config FUSION_SPI
+	tristate "Fusion MPT ScsiHost drivers for SPI"
+	depends on PCI && SCSI
+	select FUSION
+	---help---
+	  SCSI HOST support for a parallel SCSI host adapters.
+
+	  List of supported controllers:
+
+	  LSI53C1020
+	  LSI53C1020A
+	  LSI53C1030
+	  LSI53C1035
+
+config FUSION_FC
+	tristate "Fusion MPT ScsiHost drivers for FC"
 	depends on PCI && SCSI
+	select FUSION
 	---help---
-	  LSI Logic Fusion(TM) Message Passing Technology (MPT) device support
-	  provides high performance SCSI host initiator, and LAN [1] interface
-	  services to a host system.  The Fusion architecture is capable of
-	  duplexing these protocols on high-speed Fibre Channel
-	  (up to 2 GHz x 2 ports = 4 GHz) and parallel SCSI (up to Ultra-320)
-	  physical medium.
+	  SCSI HOST support for a Fiber Channel host adapters.
 
-	  [1] LAN is not supported on parallel SCSI medium.
+	  List of supported controllers:
+
+	  LSIFC909
+	  LSIFC919
+	  LSIFC919X
+	  LSIFC929
+	  LSIFC929X
+	  LSIFC929XL
 
 config FUSION_MAX_SGE
-	int "Maximum number of scatter gather entries"
+	int "Maximum number of scatter gather entries (16 - 128)"
 	depends on FUSION
-	default "40"
+	default "128"
+	range 16 128
 	help
 	  This option allows you to specify the maximum number of scatter-
-	  gather entries per I/O. The driver defaults to 40, a reasonable number
-	  for most systems. However, the user may increase this up to 128.
-	  Increasing this parameter will require significantly more memory 
-	  on a per controller instance. Increasing the parameter is not
-	  necessary (or recommended) unless the user will be running 
-	  large I/O's via the raw interface.
+	  gather entries per I/O. The driver default is 128, which matches
+	  SCSI_MAX_PHYS_SEGMENTS. However, it may decreased down to 16.
+	  Decreasing this parameter will reduce memory requirements
+	  on a per controller instance.
 
 config FUSION_CTL
 	tristate "Fusion MPT misc device (ioctl) driver"
-	depends on FUSION
+	depends on FUSION_SPI || FUSION_FC
 	---help---
 	  The Fusion MPT misc device driver provides specialized control
 	  of MPT adapters via system ioctl calls.  Use of ioctl calls to
@@ -48,7 +68,7 @@ config FUSION_CTL
 
 config FUSION_LAN
 	tristate "Fusion MPT LAN driver"
-	depends on FUSION && NET_FC
+	depends on FUSION_FC && NET_FC
 	---help---
 	  This module supports LAN IP traffic over Fibre Channel port(s)
 	  on Fusion MPT compatible hardware (LSIFC9xx chips).
diff --git a/drivers/message/fusion/Makefile b/drivers/message/fusion/Makefile
index f6fdcaaefc8..1d2f9db813c 100644
--- a/drivers/message/fusion/Makefile
+++ b/drivers/message/fusion/Makefile
@@ -1,52 +1,38 @@
-#
-# Makefile for the LSI Logic Fusion MPT (Message Passing Technology) drivers.
-#
-# Note! If you want to turn on various debug defines for an extended period of
-# time but don't want them lingering around in the Makefile when you pass it on
-# to someone else, use the MPT_CFLAGS env variable (thanks Steve). -nromer
-
-#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-{ LSI_LOGIC
-
-#  Architecture-specific...