Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits)
  [SCSI] usbstorage: use last_sector_bug flag universally
  [SCSI] libsas: abstract STP task status into a function
  [SCSI] ultrastor: clean up inline asm warnings
  [SCSI] aic7xxx: fix firmware build
  [SCSI] aacraid: fib context lock for management ioctls
  [SCSI] ch: remove forward declarations
  [SCSI] ch: fix device minor number management bug
  [SCSI] ch: handle class_device_create failure properly
  [SCSI] NCR5380: fix section mismatch
  [SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices
  [SCSI] IB/iSER: add logical unit reset support
  [SCSI] don't use __GFP_DMA for sense buffers if not required
  [SCSI] use dynamically allocated sense buffer
  [SCSI] scsi.h: add macro for enclosure bit of inquiry data
  [SCSI] sd: add fix for devices with last sector access problems
  [SCSI] fix pcmcia compile problem
  [SCSI] aacraid: add Voodoo Lite class of cards.
  [SCSI] aacraid: add new driver features flags
  [SCSI] qla2xxx: Update version number to 8.02.00-k7.
  [SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command.
  ...

13 files changed, 145 insertions, 58 deletions

diff --git a/include/linux/attribute_container.h b/include/linux/attribute_container.h
index 8ff27493394..f5582332af0 100644
--- a/include/linux/attribute_container.h
+++ b/include/linux/attribute_container.h
@@ -17,6 +17,7 @@ struct attribute_container {
 	struct list_head	node;
 	struct klist		containers;
 	struct class		*class;
+	struct attribute_group	*grp;
 	struct class_device_attribute **attrs;
 	int (*match)(struct attribute_container *, struct device *);
 #define	ATTRIBUTE_CONTAINER_NO_CLASSDEVS	0x01
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 40ee1706caa..bd20a4e8663 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -765,6 +765,7 @@ extern void blk_queue_segment_boundary(struct request_queue *, unsigned long);
 extern void blk_queue_prep_rq(struct request_queue *, prep_rq_fn *pfn);
 extern void blk_queue_merge_bvec(struct request_queue *, merge_bvec_fn *);
 extern void blk_queue_dma_alignment(struct request_queue *, int);
+extern void blk_queue_update_dma_alignment(struct request_queue *, int);
 extern void blk_queue_softirq_done(struct request_queue *, softirq_done_fn *);
 extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev);
 extern int blk_queue_ordered(struct request_queue *, unsigned, prepare_flush_fn *);
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 149ab62329e..802710438a9 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -32,6 +32,8 @@ struct attribute {
 
 struct attribute_group {
 	const char		*name;
+	int			(*is_visible)(struct kobject *,
+					      struct attribute *, int);
 	struct attribute	**attrs;
 };
 
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 50e907f4204..e19e5842316 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -49,12 +49,15 @@ enum iscsi_uevent_e {
 
 	ISCSI_UEVENT_TGT_DSCVR		= UEVENT_BASE + 15,
 	ISCSI_UEVENT_SET_HOST_PARAM	= UEVENT_BASE + 16,
+	ISCSI_UEVENT_UNBIND_SESSION	= UEVENT_BASE + 17,
 
 	/* up events */
 	ISCSI_KEVENT_RECV_PDU		= KEVENT_BASE + 1,
 	ISCSI_KEVENT_CONN_ERROR		= KEVENT_BASE + 2,
 	ISCSI_KEVENT_IF_ERROR		= KEVENT_BASE + 3,
 	ISCSI_KEVENT_DESTROY_SESSION	= KEVENT_BASE + 4,
+	ISCSI_KEVENT_UNBIND_SESSION	= KEVENT_BASE + 5,
+	ISCSI_KEVENT_CREATE_SESSION	= KEVENT_BASE + 6,
 };
 
 enum iscsi_tgt_dscvr {
@@ -156,6 +159,10 @@ struct iscsi_uevent {
 			uint32_t	sid;
 			uint32_t	cid;
 		} c_conn_ret;
+		struct msg_unbind_session {
+			uint32_t	sid;
+			uint32_t	host_no;
+		} unbind_session;
 		struct msg_recv_req {
 			uint32_t	sid;
 			uint32_t	cid;
@@ -236,6 +243,13 @@ enum iscsi_param {
 	ISCSI_PARAM_PASSWORD,
 	ISCSI_PARAM_PASSWORD_IN,
 
+	ISCSI_PARAM_FAST_ABORT,
+	ISCSI_PARAM_ABORT_TMO,
+	ISCSI_PARAM_LU_RESET_TMO,
+	ISCSI_PARAM_HOST_RESET_TMO,
+
+	ISCSI_PARAM_PING_TMO,
+	ISCSI_PARAM_RECV_TMO,
 	/* must always be last */
 	ISCSI_PARAM_MAX,
 };
@@ -266,6 +280,12 @@ enum iscsi_param {
 #define ISCSI_USERNAME_IN		(1 << ISCSI_PARAM_USERNAME_IN)
 #define ISCSI_PASSWORD			(1 << ISCSI_PARAM_PASSWORD)
 #define ISCSI_PASSWORD_IN		(1 << ISCSI_PARAM_PASSWORD_IN)
+#define ISCSI_FAST_ABORT		(1 << ISCSI_PARAM_FAST_ABORT)
+#define ISCSI_ABORT_TMO			(1 << ISCSI_PARAM_ABORT_TMO)
+#define ISCSI_LU_RESET_TMO		(1 << ISCSI_PARAM_LU_RESET_TMO)
+#define ISCSI_HOST_RESET_TMO		(1 << ISCSI_PARAM_HOST_RESET_TMO)
+#define ISCSI_PING_TMO			(1 << ISCSI_PARAM_PING_TMO)
+#define ISCSI_RECV_TMO			(1 << ISCSI_PARAM_RECV_TMO)
 
 /* iSCSI HBA params */
 enum iscsi_host_param {
diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h
index 8d1e4e8026f..318a909e7ae 100644
--- a/include/scsi/iscsi_proto.h
+++ b/include/scsi/iscsi_proto.h
@@ -21,13 +21,15 @@
 #ifndef ISCSI_PROTO_H
 #define ISCSI_PROTO_H
 
+#include <linux/types.h>
+
 #define ISCSI_DRAFT20_VERSION	0x00
 
 /* default iSCSI listen port for incoming connections */
 #define ISCSI_LISTEN_PORT	3260
 
 /* Padding word length */
-#define PAD_WORD_LEN		4
+#define ISCSI_PAD_LEN		4
 
 /*
  * useful common(control and data pathes) macro
@@ -147,6 +149,14 @@ struct iscsi_rlength_ahdr {
 	__be32 read_length;
 };
 
+/* Extended CDB AHS */
+struct iscsi_ecdb_ahdr {
+	__be16 ahslength;	/* CDB length - 15, including reserved byte */
+	uint8_t ahstype;
+	uint8_t reserved;
+	uint8_t ecdb[260 - 16];	/* 4-byte aligned extended CDB spillover */
+};
+
 /* SCSI Response Header */
 struct iscsi_cmd_rsp {
 	uint8_t opcode;
@@ -600,6 +610,8 @@ struct iscsi_reject {
 #define ISCSI_MIN_MAX_BURST_LEN			512
 #define ISCSI_MAX_MAX_BURST_LEN			16777215
 
+#define ISCSI_DEF_TIME2WAIT			2
+
 /************************* RFC 3720 End *****************************/
 
 #endif /* ISCSI_PROTO_H */
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index b4b31132618..889f51fabab 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -57,11 +57,14 @@ struct iscsi_nopin;
 #define ISCSI_MAX_CMD_PER_LUN		128
 
 /* Task Mgmt states */
-#define TMABORT_INITIAL			0x0
-#define TMABORT_SUCCESS			0x1
-#define TMABORT_FAILED			0x2
-#define TMABORT_TIMEDOUT		0x3
-#define TMABORT_NOT_FOUND		0x4
+enum {
+	TMF_INITIAL,
+	TMF_QUEUED,
+	TMF_SUCCESS,
+	TMF_FAILED,
+	TMF_TIMEDOUT,
+	TMF_NOT_FOUND,
+};
 
 /* Connection suspend "bit" */
 #define ISCSI_SUSPEND_BIT		1
@@ -74,6 +77,13 @@ struct iscsi_nopin;
 
 #define ISCSI_ADDRESS_BUF_LEN		64
 
+enum {
+	/* this is the maximum possible storage for AHSs */
+	ISCSI_MAX_AHS_SIZE = sizeof(struct iscsi_ecdb_ahdr) +
+				sizeof(struct iscsi_rlength_ahdr),
+	ISCSI_DIGEST_SIZE = sizeof(__u32),
+};
+
 struct iscsi_mgmt_task {
 	/*
 	 * Becuae LLDs allocate their hdr differently, this is a pointer to
@@ -91,15 +101,17 @@ enum {
 	ISCSI_TASK_COMPLETED,
 	ISCSI_TASK_PENDING,
 	ISCSI_TASK_RUNNING,
-	ISCSI_TASK_ABORTING,
 };
 
 struct iscsi_cmd_task {
 	/*
-	 * Becuae LLDs allocate their hdr differently, this is a pointer to
-	 * that storage. It must be setup at session creation time.
+	 * Because LLDs allocate their hdr differently, this is a pointer
+	 * and length to that storage. It must be setup at session
+	 * creation time.
 	 */
 	struct iscsi_cmd	*hdr;
+	unsigned short		hdr_max;
+	unsigned short		hdr_len;	/* accumulated size of hdr used */
 	int			itt;		/* this ITT */
 
 	uint32_t		unsol_datasn;
@@ -110,7 +122,6 @@ struct iscsi_cmd_task {
 	unsigned		data_count;	/* remaining Data-Out */
 	struct scsi_cmnd	*sc;		/* associated SCSI cmd*/
 	struct iscsi_conn	*conn;		/* used connection    */
-	struct iscsi_mgmt_task	*mtask;		/* tmf mtask in progr */
 
 	/* state set/tested under session->lock */
 	int			state;
@@ -119,6 +130,11 @@ struct iscsi_cmd_task {
 	void			*dd_data;	/* driver/transport data */
 };
 
+static inline void* iscsi_next_hdr(struct iscsi_cmd_task *ctask)
+{
+	return (void*)ctask->hdr + ctask->hdr_len;
+}
+
 struct iscsi_conn {
 	struct iscsi_cls_conn	*cls_conn;	/* ptr to class connection */
 	void			*dd_data;	/* iscsi_transport data */
@@ -132,6 +148,12 @@ struct iscsi_conn {
 	 * conn_stop() flag: stop to recover, stop to terminate
 	 */
         int			stop_stage;
+	struct timer_list	transport_timer;
+	unsigned long		last_recv;
+	unsigned long		last_ping;
+	int			ping_timeout;
+	int			recv_timeout;
+	struct iscsi_mgmt_task	*ping_mtask;
 
 	/* iSCSI connection-wide sequencing */
 	uint32_t		exp_statsn;
@@ -152,10 +174,11 @@ struct iscsi_conn {
 	struct iscsi_cmd_task	*ctask;		/* xmit ctask in progress */
 
 	/* xmit */
-	struct kfifo		*mgmtqueue;	/* mgmt (control) xmit queue */
+	struct list_head	mgmtqueue;	/* mgmt (control) xmit queue */
 	struct list_head	mgmt_run_list;	/* list of control tasks */
 	struct list_head	xmitqueue;	/* data-path cmd queue */
 	struct list_head	run_list;	/* list of cmds in progress */
+	struct list_head	requeue;	/* tasks needing another run */
 	struct work_struct	xmitwork;	/* per-conn. xmit workqueue */
 	unsigned long		suspend_tx;	/* suspend Tx */
 	unsigned long		suspend_rx;	/* suspend Rx */
@@ -163,8 +186,8 @@ struct iscsi_conn {
 	/* abort */
 	wait_queue_head_t	ehwait;		/* used in eh_abort() */
 	struct iscsi_tm		tmhdr;
-	struct timer_list	tmabort_timer;
-	int			tmabort_state;	/* see TMABORT_INITIAL, etc.*/
+	struct timer_list	tmf_timer;
+	int			tmf_state;	/* see TMF_INITIAL, etc.*/
 
 	/* negotiated params */
 	unsigned		max_recv_dlength; /* initiator_max_recv_dsl*/
@@ -198,7 +221,7 @@ struct iscsi_conn {
 	uint32_t		eh_abort_cnt;
 };
 
-struct iscsi_queue {
+struct iscsi_pool {
 	struct kfifo		*queue;		/* FIFO Queue */
 	void			**pool;		/* Pool of elements */
 	int			max;		/* Max number of elements */
@@ -221,6 +244,8 @@ struct iscsi_session {
 	uint32_t		queued_cmdsn;
 
 	/* configuration */
+	int			abort_timeout;
+	int			lu_reset_timeout;
 	int			initial_r2t_en;
 	unsigned		max_r2t;
 	int			imm_data_en;
@@ -231,6 +256,7 @@ struct iscsi_session {
 	int			pdu_inorder_en;
 	int			dataseq_inorder_en;
 	int			erl;
+	int			fast_abort;
 	int			tpgt;
 	char			*username;
 	char			*username_in;
@@ -256,10 +282,10 @@ struct iscsi_session {
 
 	int			cmds_max;	/* size of cmds array */
 	struct iscsi_cmd_task	**cmds;		/* Original Cmds arr */
-	struct iscsi_queue	cmdpool;	/* PDU's pool */
+	struct iscsi_pool	cmdpool;	/* PDU's pool */
 	int			mgmtpool_max;	/* size of mgmt array */
 	struct iscsi_mgmt_task	**mgmt_cmds;	/* Original mgmt arr */
-	struct iscsi_queue	mgmtpool;	/* Mgmt PDU's pool */
+	struct iscsi_pool	mgmtpool;	/* Mgmt PDU's pool */
 };
 
 /*
@@ -268,6 +294,7 @@ struct iscsi_session {
 extern int iscsi_change_queue_depth(struct scsi_device *sdev, int depth);
 extern int iscsi_eh_abort(struct scsi_cmnd *sc);
 extern int iscsi_eh_host_reset(struct scsi_cmnd *sc);
+extern int iscsi_eh_device_reset(struct scsi_cmnd *sc);
 extern int iscsi_queuecommand(struct scsi_cmnd *sc,
 			      void (*done)(struct scsi_cmnd *));
 
@@ -326,11 +353,32 @@ extern int __iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
 				char *, int);
 extern int iscsi_verify_itt(struct iscsi_conn *, struct iscsi_hdr *,
 			    uint32_t *);
+extern void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask);
+extern void iscsi_free_mgmt_task(struct iscsi_conn *conn,
+				 struct iscsi_mgmt_task *mtask);
 
 /*
  * generic helpers
  */
-extern void iscsi_pool_free(struct iscsi_queue *, void **);
-extern int iscsi_pool_init(struct iscsi_queue *, int, void ***, int);
+extern void iscsi_pool_free(struct iscsi_pool *);
+extern int iscsi_pool_init(struct iscsi_pool *, int, void ***, int);
+
+/*
+ * inline functions to deal with padding.
+ */
+static inline unsigned int
+iscsi_padded(unsigned int len)
+{
+	return (len + ISCSI_PAD_LEN - 1) & ~(ISCSI_PAD_LEN - 1);
+}
+
+static inline unsigned int
+iscsi_padding(unsigned int len)
+{
+	len &= (ISCSI_PAD_LEN - 1);
+	if (len)
+		len = ISCSI_PAD_LEN - len;
+	return len;
+}
 
 #endif
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index a466c2cb895..3ffd6b582a9 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -91,8 +91,6 @@ enum discover_event {
 
 /* ---------- Expander Devices ---------- */
 
-#define ETASK 0xFA
-
 #define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj)
 #define to_dev_attr(_attr)  container_of(_attr, struct domain_dev_attribute,\
                                          attr)
@@ -122,8 +120,8 @@ struct ex_phy {
 	u8   attached_sata_dev:1;
 	u8   attached_sata_ps:1;
 
-	enum sas_proto attached_tproto;
-	enum sas_proto attached_iproto;
+	enum sas_protocol attached_tproto;
+	enum sas_protocol attached_iproto;
 
 	u8   attached_sas_addr[SAS_ADDR_SIZE];
 	u8   attached_phy_id;
@@ -191,8 +189,8 @@ struct domain_device {
 
         struct list_head dev_list_node;
 
-        enum sas_proto    iproto;
-        enum sas_proto    tproto;
+        enum sas_protocol    iproto;
+        enum sas_protocol    tproto;
 
         struct sas_rphy *rphy;
 
@@ -245,8 +243,8 @@ struct asd_sas_port {
 	enum sas_class   class;
 	u8               sas_addr[SAS_ADDR_SIZE];
 	u8               attached_sas_addr[SAS_ADDR_SIZE];
-	enum sas_proto   iproto;
-	enum sas_proto   tproto;
+	enum sas_protocol   iproto;
+	enum sas_protocol   tproto;
 
 	enum sas_oob_mode oob_mode;
 
@@ -289,8 +287,8 @@ struct asd_sas_phy {
 
 	int            id;	  /* must be set */
 	enum sas_class class;
-	enum sas_proto iproto;
-	enum sas_proto tproto;
+	enum sas_protocol iproto;
+	enum sas_protocol tproto;
 
 	enum sas_phy_type  type;
 	enum sas_phy_role  role;
@@ -537,7 +535,7 @@ struct sas_task {
 	spinlock_t   task_state_lock;
 	unsigned     task_state_flags;
 
-	enum   sas_proto      task_proto;
+	enum   sas_protocol      task_proto;
 
 	/* Used by the discovery code. */
 	struct timer_list     timer;
@@ -563,7 +561,7 @@ struct sas_task {
 	struct work_struct abort_work;
 };
 
-
+extern struct kmem_cache *sas_task_cache;
 
 #define SAS_TASK_STATE_PENDING      1
 #define SAS_TASK_STATE_DONE         2
@@ -573,7 +571,6 @@ struct sas_task {
 
 static inline struct sas_task *sas_alloc_task(gfp_t flags)
 {
-	extern struct kmem_cache *sas_task_cache;
 	struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);
 
 	if (task) {
@@ -590,7 +587,6 @@ static inline struct sas_task *sas_alloc_task(gfp_t flags)
 static inline void sas_free_task(struct sas_task *task)
 {
 	if (task) {
-		extern struct kmem_cache *sas_task_cache;
 		BUG_ON(!list_empty(&task->list));
 		kmem_cache_free(sas_task_cache, task);
 	}
@@ -676,4 +672,8 @@ extern int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg);
 
 extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
 			   struct request *req);
+
+extern void sas_ssp_task_response(struct device *dev, struct sas_task *task,
+				  struct ssp_response_iu *iu);
+
 #endif /* _SASLIB_H_ */
diff --git a/include/scsi/sas.h b/include/scsi/sas.h
index 2f4b6afa34f..e9fd0228138 100644
--- a/include/scsi/sas.h
+++ b/include/scsi/sas.h
@@ -102,13 +102,12 @@ enum sas_dev_type {
 	SATA_PM_PORT= 8,
 };
 
-/* Partly from IDENTIFY address frame. */
-enum sas_proto {
-	SATA_PROTO    = 1,
-	SAS_PROTO_SMP = 2,	  /* protocol */
-	SAS_PROTO_STP = 4,	  /* protocol */
-	SAS_PROTO_SSP = 8,	  /* protocol */
-	SAS_PROTO_ALL = 0xE,
+enum sas_protocol {
+	SAS_PROTOCOL_SATA		= 0x01,
+	SAS_PROTOCOL_SMP		= 0x02,
+	SAS_PROTOCOL_STP		= 0x04,
+	SAS_PROTOCOL_SSP		= 0x08,
+	SAS_PROTOCOL_ALL		= 0x0E,
 };
 
 /* From the spec; local phys only */
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 3f47e522a1e..abd7479ff45 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -88,7 +88,7 @@ struct scsi_cmnd {
 				   	   working on */
 
 #define SCSI_SENSE_BUFFERSIZE 	96
-	unsigned char sense_buffer[SCSI_SENSE_BUFFERSIZE];
+	unsigned char *sense_buffer;
 				/* obtained by REQUEST SENSE when
 				 * CHECK CONDITION is received on original
 				 * command (auto-sense) */
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 6c2d80b36aa..ab7acbe8096 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -122,9 +122,6 @@ struct scsi_device {
 	unsigned tagged_supported:1;	/* Supports SCSI-II tagged queuing */
 	unsigned simple_tags:1;	/* simple queue tag messages are enabled */
 	unsigned ordered_tags:1;/* ordered queue tag messages are enabled */
-	unsigned single_lun:1;	/* Indicates we should only allow I/O to
-				 * one of the luns for the device at a 
-				 * time. */
 	unsigned was_reset:1;	/* There was a bus reset on the bus for 
 				 * this device */
 	unsigned expecting_cc_ua:1; /* Expecting a CHECK_CONDITION/UNIT_ATTN
@@ -142,6 +139,7 @@ struct scsi_device {
 	unsigned fix_capacity:1;	/* READ_CAPACITY is too high by 1 */
 	unsigned guess_capacity:1;	/* READ_CAPACITY might be too high by 1 */
 	unsigned retry_hwerror:1;	/* Retry HARDWARE_ERROR */
+	unsigned last_sector_bug:1;	/* Always read last sector in a 1 sector read */
 
 	DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */
 	struct list_head event_list;	/* asserted events */
@@ -202,6 +200,9 @@ struct scsi_target {
 	unsigned int		id; /* target id ... replace
 				     * scsi_device.id eventually */
 	unsigned int		create:1; /* signal that it needs to be added */
+	unsigned int		single_lun:1;	/* Indicates we should only
+						 * allow I/O to one of the luns
+						 * for the device at a time. */
 	unsigned int		pdt_1f_for_no_lun;	/* PDT = 0x1f */
 						/* means no lun present */
 
@@ -295,7 +296,7 @@ extern int scsi_mode_select(struct scsi_device *sdev, int pf, int sp,
 			    struct scsi_mode_data *data,
 			    struct scsi_sense_hdr *);
 extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
-				int retries);
+				int retries, struct scsi_sense_hdr *sshdr);
 extern int scsi_device_set_state(struct scsi_device *sdev,
 				 enum scsi_device_state state);
 extern struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type,
@@ -386,6 +387,10 @@ static inline int scsi_device_qas(struct scsi_device *sdev)
 		return 0;
 	return sdev->inquiry[56] & 0x02;
 }
+static inline int scsi_device_enclosure(struct scsi_device *sdev)
+{
+	return sdev->inquiry[6] & (1<<6);
+}
 
 #define MODULE_ALIAS_SCSI_DEVICE(type) \
 	MODULE_ALIAS("scsi:t-" __stringify(type) "*")
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 7ff6199cbd5..404f11d331d 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -118,7 +118,7 @@ struct iscsi_transport {
 			 char *data, uint32_t data_size);
 	void (*get_stats) (struct iscsi_cls_conn *conn,
 			   struct iscsi_stats *stats);
-	void (*init_cmd_task) (struct iscsi_cmd_task *ctask);
+	int (*init_cmd_task) (struct iscsi_cmd_task *ctask);
 	void (*init_mgmt_task) (struct iscsi_conn *conn,
 				struct iscsi_mgmt_task *mtask);
 	int (*xmit_cmd_task) (struct iscsi_conn *conn,
@@ -176,6 +176,7 @@ struct iscsi_cls_conn {
 #define ISCSI_STATE_TERMINATE		4
 #define ISCSI_STATE_IN_RECOVERY		5
 #define ISCSI_STATE_RECOVERY_FAILED	6
+#define ISCSI_STATE_LOGGING_OUT		7
 
 struct iscsi_cls_session {
 	struct list_head sess_list;		/* item in session_list */
@@ -185,6 +186,7 @@ struct iscsi_cls_session {
 	/* recovery fields */
 	int recovery_tmo;
 	struct delayed_work recovery_work;
+	struct work_struct unbind_work;
 
 	int target_id;
 
@@ -205,6 +207,8 @@ struct iscsi_cls_session {
 struct iscsi_host {
 	struct list_head sessions;
 	struct mutex mutex;
+	struct workqueue_struct *unbind_workq;
+	char unbind_workq_name[KOBJ_NAME_LEN];
 };
 
 /*
@@ -214,8 +218,8 @@ extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost,
 					struct iscsi_transport *transport);
 extern int iscsi_add_session(struct iscsi_cls_session *session,
 			     unsigned int target_id);
-extern int iscsi_if_create_session_done(struct iscsi_cls_conn *conn);
-extern int iscsi_if_destroy_session_done(struct iscsi_cls_conn *conn);
+extern int iscsi_session_event(struct iscsi_cls_session *session,
+			       enum iscsi_uevent_e event);
 extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost,
 						struct iscsi_transport *t,
 						unsigned int target_id);
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index abdfd2e27dd..09125fa95b9 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -4,23 +4,17 @@
 #include <linux/transport_class.h>
 #include <linux/types.h>
 #include <linux/mutex.h>
+#include <scsi/sas.h>
 
 struct scsi_transport_template;
 struct sas_rphy;
 struct request;
 
 enum sas_device_type {
-	SAS_PHY_UNUSED,
-	SAS_END_DEVICE,
-	SAS_EDGE_EXPANDER_DEVICE,
-	SAS_FANOUT_EXPANDER_DEVICE,
-};
-
-enum sas_protocol {
-	SAS_PROTOCOL_SATA		= 0x01,
-	SAS_PROTOCOL_SMP		= 0x02,
-	SAS_PROTOCOL_STP		= 0x04,
-	SAS_PROTOCOL_SSP		= 0x08,
+	SAS_PHY_UNUSED = 0,
+	SAS_END_DEVICE = 1,
+	SAS_EDGE_EXPANDER_DEVICE = 2,
+	SAS_FANOUT_EXPANDER_DEVICE = 3,
 };
 
 static inline int sas_protocol_ata(enum sas_protocol proto)
diff --git a/include/scsi/sd.h b/include/scsi/sd.h
index f7513313ef0..8ea9f7358ac 100644
--- a/include/scsi/sd.h
+++ b/include/scsi/sd.h
@@ -41,6 +41,7 @@ struct scsi_disk {
 	u32		index;
 	u8		media_present;
 	u8		write_prot;
+	unsigned	previous_state : 1;
 	unsigned	WCE : 1;	/* state of disk WCE bit */
 	unsigned	RCD : 1;	/* state of disk RCD bit, unused */
 	unsigned	DPOFUA : 1;	/* state of disk DPOFUA bit */