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: (48 commits)
  [SCSI] aacraid: do not set valid bit in sense information
  [SCSI] ses: add new Enclosure ULD
  [SCSI] enclosure: add support for enclosure services
  [SCSI] sr: fix test unit ready responses
  [SCSI] u14-34f: fix data direction bug
  [SCSI] aacraid: pci_set_dma_max_seg_size opened up for late model controllers
  [SCSI] fix BUG when sum(scatterlist) > bufflen
  [SCSI] arcmsr: updates (1.20.00.15)
  [SCSI] advansys: make 3 functions static
  [SCSI] Small cleanups for scsi_host.h
  [SCSI] dc395x: fix uninitialized var warning
  [SCSI] NCR53C9x: remove driver
  [SCSI] remove m68k NCR53C9x based drivers
  [SCSI] dec_esp: Remove driver
  [SCSI] kernel-doc: fix scsi docbook
  [SCSI] update my email address
  [SCSI] add protocol definitions
  [SCSI] sd: handle bad lba in sense information
  [SCSI] qla2xxx: Update version number to 8.02.00-k8.
  [SCSI] qla2xxx: Correct issue where incorrect init-fw mailbox command was used on non-NPIV capable ISPs.
  ...

6 files changed, 220 insertions, 44 deletions

diff --git a/include/linux/enclosure.h b/include/linux/enclosure.h
new file mode 100644
index 0000000..a5978f1
--- /dev/null
+++ b/include/linux/enclosure.h
@@ -0,0 +1,129 @@
+/*
+ * Enclosure Services
+ *
+ * Copyright (C) 2008 James Bottomley <James.Bottomley@HansenPartnership.com>
+ *
+**-----------------------------------------------------------------------------
+**
+**  This program is free software; you can redistribute it and/or
+**  modify it under the terms of the GNU General Public License
+**  version 2 as published by the Free Software Foundation.
+**
+**  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; if not, write to the Free Software
+**  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+**
+**-----------------------------------------------------------------------------
+*/
+#ifndef _LINUX_ENCLOSURE_H_
+#define _LINUX_ENCLOSURE_H_
+
+#include <linux/device.h>
+#include <linux/list.h>
+
+/* A few generic types ... taken from ses-2 */
+enum enclosure_component_type {
+	ENCLOSURE_COMPONENT_DEVICE = 0x01,
+	ENCLOSURE_COMPONENT_ARRAY_DEVICE = 0x17,
+};
+
+/* ses-2 common element status */
+enum enclosure_status {
+	ENCLOSURE_STATUS_UNSUPPORTED = 0,
+	ENCLOSURE_STATUS_OK,
+	ENCLOSURE_STATUS_CRITICAL,
+	ENCLOSURE_STATUS_NON_CRITICAL,
+	ENCLOSURE_STATUS_UNRECOVERABLE,
+	ENCLOSURE_STATUS_NOT_INSTALLED,
+	ENCLOSURE_STATUS_UNKNOWN,
+	ENCLOSURE_STATUS_UNAVAILABLE,
+};
+
+/* SFF-8485 activity light settings */
+enum enclosure_component_setting {
+	ENCLOSURE_SETTING_DISABLED = 0,
+	ENCLOSURE_SETTING_ENABLED = 1,
+	ENCLOSURE_SETTING_BLINK_A_ON_OFF = 2,
+	ENCLOSURE_SETTING_BLINK_A_OFF_ON = 3,
+	ENCLOSURE_SETTING_BLINK_B_ON_OFF = 6,
+	ENCLOSURE_SETTING_BLINK_B_OFF_ON = 7,
+};
+
+struct enclosure_device;
+struct enclosure_component;
+struct enclosure_component_callbacks {
+	void (*get_status)(struct enclosure_device *,
+			     struct enclosure_component *);
+	int (*set_status)(struct enclosure_device *,
+			  struct enclosure_component *,
+			  enum enclosure_status);
+	void (*get_fault)(struct enclosure_device *,
+			  struct enclosure_component *);
+	int (*set_fault)(struct enclosure_device *,
+			 struct enclosure_component *,
+			 enum enclosure_component_setting);
+	void (*get_active)(struct enclosure_device *,
+			   struct enclosure_component *);
+	int (*set_active)(struct enclosure_device *,
+			  struct enclosure_component *,
+			  enum enclosure_component_setting);
+	void (*get_locate)(struct enclosure_device *,
+			   struct enclosure_component *);
+	int (*set_locate)(struct enclosure_device *,
+			  struct enclosure_component *,
+			  enum enclosure_component_setting);
+};
+
+
+struct enclosure_component {
+	void *scratch;
+	struct class_device cdev;
+	enum enclosure_component_type type;
+	int number;
+	int fault;
+	int active;
+	int locate;
+	enum enclosure_status status;
+};
+
+struct enclosure_device {
+	void *scratch;
+	struct list_head node;
+	struct class_device cdev;
+	struct enclosure_component_callbacks *cb;
+	int components;
+	struct enclosure_component component[0];
+};
+
+static inline struct enclosure_device *
+to_enclosure_device(struct class_device *dev)
+{
+	return container_of(dev, struct enclosure_device, cdev);
+}
+
+static inline struct enclosure_component *
+to_enclosure_component(struct class_device *dev)
+{
+	return container_of(dev, struct enclosure_component, cdev);
+}
+
+struct enclosure_device *
+enclosure_register(struct device *, const char *, int,
+		   struct enclosure_component_callbacks *);
+void enclosure_unregister(struct enclosure_device *);
+struct enclosure_component *
+enclosure_component_register(struct enclosure_device *, unsigned int,
+				 enum enclosure_component_type, const char *);
+int enclosure_add_device(struct enclosure_device *enclosure, int component,
+			 struct device *dev);
+int enclosure_remove_device(struct enclosure_device *enclosure, int component);
+struct enclosure_device *enclosure_find(struct device *dev);
+int enclosure_for_each_device(int (*fn)(struct enclosure_device *, void *),
+			      void *data);
+
+#endif /* _LINUX_ENCLOSURE_H_ */
diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h
index 318a909..5ffec8a 100644
--- a/include/scsi/iscsi_proto.h
+++ b/include/scsi/iscsi_proto.h
@@ -45,8 +45,8 @@
 /* initiator tags; opaque for target */
 typedef uint32_t __bitwise__ itt_t;
 /* below makes sense only for initiator that created this tag */
-#define build_itt(itt, id, age) ((__force itt_t)\
-	((itt) | ((id) << ISCSI_CID_SHIFT) | ((age) << ISCSI_AGE_SHIFT)))
+#define build_itt(itt, age) ((__force itt_t)\
+	((itt) | ((age) << ISCSI_AGE_SHIFT)))
 #define get_itt(itt) ((__force uint32_t)(itt_t)(itt) & ISCSI_ITT_MASK)
 #define RESERVED_ITT ((__force itt_t)0xffffffff)
 
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 889f51f..7b90b63 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -70,8 +70,6 @@ enum {
 #define ISCSI_SUSPEND_BIT		1
 
 #define ISCSI_ITT_MASK			(0xfff)
-#define ISCSI_CID_SHIFT			12
-#define ISCSI_CID_MASK			(0xffff << ISCSI_CID_SHIFT)
 #define ISCSI_AGE_SHIFT			28
 #define ISCSI_AGE_MASK			(0xf << ISCSI_AGE_SHIFT)
 
@@ -135,6 +133,14 @@ static inline void* iscsi_next_hdr(struct iscsi_cmd_task *ctask)
 	return (void*)ctask->hdr + ctask->hdr_len;
 }
 
+/* Connection's states */
+enum {
+	ISCSI_CONN_INITIAL_STAGE,
+	ISCSI_CONN_STARTED,
+	ISCSI_CONN_STOPPED,
+	ISCSI_CONN_CLEANUP_WAIT,
+};
+
 struct iscsi_conn {
 	struct iscsi_cls_conn	*cls_conn;	/* ptr to class connection */
 	void			*dd_data;	/* iscsi_transport data */
@@ -227,6 +233,17 @@ struct iscsi_pool {
 	int			max;		/* Max number of elements */
 };
 
+/* Session's states */
+enum {
+	ISCSI_STATE_FREE = 1,
+	ISCSI_STATE_LOGGED_IN,
+	ISCSI_STATE_FAILED,
+	ISCSI_STATE_TERMINATE,
+	ISCSI_STATE_IN_RECOVERY,
+	ISCSI_STATE_RECOVERY_FAILED,
+	ISCSI_STATE_LOGGING_OUT,
+};
+
 struct iscsi_session {
 	/*
 	 * Syncs up the scsi eh thread with the iscsi eh thread when sending
@@ -325,6 +342,10 @@ extern int iscsi_session_get_param(struct iscsi_cls_session *cls_session,
 #define session_to_cls(_sess) \
 	hostdata_session(_sess->host->hostdata)
 
+#define iscsi_session_printk(prefix, _sess, fmt, a...)	\
+	iscsi_cls_session_printk(prefix,		\
+		(struct iscsi_cls_session *)session_to_cls(_sess), fmt, ##a)
+
 /*
  * connection management
  */
@@ -339,6 +360,9 @@ extern void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err);
 extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
 				enum iscsi_param param, char *buf);
 
+#define iscsi_conn_printk(prefix, _c, fmt, a...) \
+	iscsi_cls_conn_printk(prefix, _c->cls_conn, fmt, ##a)
+
 /*
  * pdu and task processing
  */
@@ -349,8 +373,6 @@ extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *,
 				char *, uint32_t);
 extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
 			      char *, int);
-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);
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 8225157..1f74bcd 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -235,6 +235,20 @@ static inline int scsi_status_is_good(int status)
 #define TYPE_RBC	    0x0e
 #define TYPE_NO_LUN         0x7f
 
+/* SCSI protocols; these are taken from SPC-3 section 7.5 */
+enum scsi_protocol {
+	SCSI_PROTOCOL_FCP = 0,	/* Fibre Channel */
+	SCSI_PROTOCOL_SPI = 1,	/* parallel SCSI */
+	SCSI_PROTOCOL_SSA = 2,	/* Serial Storage Architecture - Obsolete */
+	SCSI_PROTOCOL_SBP = 3,	/* firewire */
+	SCSI_PROTOCOL_SRP = 4,	/* Infiniband RDMA */
+	SCSI_PROTOCOL_ISCSI = 5,
+	SCSI_PROTOCOL_SAS = 6,
+	SCSI_PROTOCOL_ADT = 7,	/* Media Changers */
+	SCSI_PROTOCOL_ATA = 8,
+	SCSI_PROTOCOL_UNSPEC = 0xf, /* No specific protocol */
+};
+
 /* Returns a human-readable name for the device */
 extern const char * scsi_device_type(unsigned type);
 
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 5c58d59..d1299e9 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -280,39 +280,45 @@ struct scsi_host_template {
 	 * If the host wants to be called before the scan starts, but
 	 * after the midlayer has set up ready for the scan, it can fill
 	 * in this function.
+	 *
+	 * Status: OPTIONAL
 	 */
 	void (* scan_start)(struct Scsi_Host *);
 
 	/*
-	 * fill in this function to allow the queue depth of this host
-	 * to be changeable (on a per device basis).  returns either
+	 * Fill in this function to allow the queue depth of this host
+	 * to be changeable (on a per device basis).  Returns either
 	 * the current queue depth setting (may be different from what
 	 * was passed in) or an error.  An error should only be
 	 * returned if the requested depth is legal but the driver was
 	 * unable to set it.  If the requested depth is illegal, the
 	 * driver should set and return the closest legal queue depth.
 	 *
+	 * Status: OPTIONAL
 	 */
 	int (* change_queue_depth)(struct scsi_device *, int);
 
 	/*
-	 * fill in this function to allow the changing of tag types
+	 * Fill in this function to allow the changing of tag types
 	 * (this also allows the enabling/disabling of tag command
 	 * queueing).  An error should only be returned if something
 	 * went wrong in the driver while trying to set the tag type.
 	 * If the driver doesn't support the requested tag type, then
 	 * it should set the closest type it does support without
 	 * returning an error.  Returns the actual tag type set.
+	 *
+	 * Status: OPTIONAL
 	 */
 	int (* change_queue_type)(struct scsi_device *, int);
 
 	/*
-	 * This function determines the bios parameters for a given
+	 * This function determines the BIOS parameters for a given
 	 * harddisk.  These tend to be numbers that are made up by
 	 * the host adapter.  Parameters:
 	 * size, device, list (heads, sectors, cylinders)
 	 *
-	 * Status: OPTIONAL */
+	 * Status: OPTIONAL
+	 */
 	int (* bios_param)(struct scsi_device *, struct block_device *,
 			sector_t, int []);
 
@@ -351,7 +357,7 @@ struct scsi_host_template {
 
 	/*
 	 * This determines if we will use a non-interrupt driven
-	 * or an interrupt driven scheme,  It is set to the maximum number
+	 * or an interrupt driven scheme.  It is set to the maximum number
 	 * of simultaneous commands a given host adapter will accept.
 	 */
 	int can_queue;
@@ -372,12 +378,12 @@ struct scsi_host_template {
 	unsigned short sg_tablesize;
 
 	/*
-	 * If the host adapter has limitations beside segment count
+	 * Set this if the host adapter has limitations beside segment count.
 	 */
 	unsigned short max_sectors;
 
 	/*
-	 * dma scatter gather segment boundary limit. a segment crossing this
+	 * DMA scatter gather segment boundary limit. A segment crossing this
 	 * boundary will be split in two.
 	 */
 	unsigned long dma_boundary;
@@ -386,7 +392,7 @@ struct scsi_host_template {
 	 * This specifies "machine infinity" for host templates which don't
 	 * limit the transfer size.  Note this limit represents an absolute
 	 * maximum, and may be over the transfer limits allowed for
-	 * individual devices (e.g. 256 for SCSI-1)
+	 * individual devices (e.g. 256 for SCSI-1).
 	 */
 #define SCSI_DEFAULT_MAX_SECTORS	1024
 
@@ -413,12 +419,12 @@ struct scsi_host_template {
 	unsigned supported_mode:2;
 
 	/*
-	 * true if this host adapter uses unchecked DMA onto an ISA bus.
+	 * True if this host adapter uses unchecked DMA onto an ISA bus.
 	 */
 	unsigned unchecked_isa_dma:1;
 
 	/*
-	 * true if this host adapter can make good use of clustering.
+	 * True if this host adapter can make good use of clustering.
 	 * I originally thought that if the tablesize was large that it
 	 * was a waste of CPU cycles to prepare a cluster list, but
 	 * it works out that the Buslogic is faster if you use a smaller
@@ -428,7 +434,7 @@ struct scsi_host_template {
 	unsigned use_clustering:1;
 
 	/*
-	 * True for emulated SCSI host adapters (e.g. ATAPI)
+	 * True for emulated SCSI host adapters (e.g. ATAPI).
 	 */
 	unsigned emulated:1;
 
@@ -438,12 +444,12 @@ struct scsi_host_template {
 	unsigned skip_settle_delay:1;
 
 	/*
-	 * ordered write support
+	 * True if we are using ordered write support.
 	 */
 	unsigned ordered_tag:1;
 
 	/*
-	 * Countdown for host blocking with no commands outstanding
+	 * Countdown for host blocking with no commands outstanding.
 	 */
 	unsigned int max_host_blocked;
 
@@ -522,8 +528,8 @@ struct Scsi_Host {
 	struct scsi_transport_template *transportt;
 
 	/*
-	 * area to keep a shared tag map (if needed, will be
-	 * NULL if not)
+	 * Area to keep a shared tag map (if needed, will be
+	 * NULL if not).
 	 */
 	struct blk_queue_tag	*bqt;
 
@@ -596,16 +602,16 @@ struct Scsi_Host {
 	/*
 	 * Host uses correct SCSI ordering not PC ordering. The bit is
 	 * set for the minority of drivers whose authors actually read
-	 * the spec ;)
+	 * the spec ;).
 	 */
 	unsigned reverse_ordering:1;
 
 	/*
-	 * ordered write support
+	 * Ordered write support
 	 */
 	unsigned ordered_tag:1;
 
-	/* task mgmt function in progress */
+	/* Task mgmt function in progress */
 	unsigned tmf_in_progress:1;
 
 	/* Asynchronous scan in progress */
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 404f11d..dbc96ef 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -149,13 +149,6 @@ extern void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error);
 extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
 			  char *data, uint32_t data_size);
 
-
-/* Connection's states */
-#define ISCSI_CONN_INITIAL_STAGE	0
-#define ISCSI_CONN_STARTED		1
-#define ISCSI_CONN_STOPPED		2
-#define ISCSI_CONN_CLEANUP_WAIT		3
-
 struct iscsi_cls_conn {
 	struct list_head conn_list;	/* item in connlist */
 	void *dd_data;			/* LLD private data */
@@ -169,27 +162,31 @@ struct iscsi_cls_conn {
 #define iscsi_dev_to_conn(_dev) \
 	container_of(_dev, struct iscsi_cls_conn, dev)
 
-/* Session's states */
-#define ISCSI_STATE_FREE		1
-#define ISCSI_STATE_LOGGED_IN		2
-#define ISCSI_STATE_FAILED		3
-#define ISCSI_STATE_TERMINATE		4
-#define ISCSI_STATE_IN_RECOVERY		5
-#define ISCSI_STATE_RECOVERY_FAILED	6
-#define ISCSI_STATE_LOGGING_OUT		7
+#define iscsi_conn_to_session(_conn) \
+	iscsi_dev_to_session(_conn->dev.parent)
+
+/* iscsi class session state */
+enum {
+	ISCSI_SESSION_LOGGED_IN,
+	ISCSI_SESSION_FAILED,
+	ISCSI_SESSION_FREE,
+};
 
 struct iscsi_cls_session {
 	struct list_head sess_list;		/* item in session_list */
 	struct list_head host_list;
 	struct iscsi_transport *transport;
+	spinlock_t lock;
+	struct work_struct scan_work;
+	struct work_struct unbind_work;
 
 	/* recovery fields */
 	int recovery_tmo;
 	struct delayed_work recovery_work;
-	struct work_struct unbind_work;
 
 	int target_id;
 
+	int state;
 	int sid;				/* session id */
 	void *dd_data;				/* LLD private data */
 	struct device dev;	/* sysfs transport/container device */
@@ -206,14 +203,22 @@ struct iscsi_cls_session {
 
 struct iscsi_host {
 	struct list_head sessions;
+	atomic_t nr_scans;
 	struct mutex mutex;
-	struct workqueue_struct *unbind_workq;
-	char unbind_workq_name[KOBJ_NAME_LEN];
+	struct workqueue_struct *scan_workq;
+	char scan_workq_name[KOBJ_NAME_LEN];
 };
 
 /*
  * session and connection functions that can be used by HW iSCSI LLDs
  */
+#define iscsi_cls_session_printk(prefix, _cls_session, fmt, a...) \
+	dev_printk(prefix, &(_cls_session)->dev, fmt, ##a)
+
+#define iscsi_cls_conn_printk(prefix, _cls_conn, fmt, a...) \
+	dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a)
+
+extern int iscsi_session_chkready(struct iscsi_cls_session *session);
 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,
@@ -231,6 +236,6 @@ extern struct iscsi_cls_conn *iscsi_create_conn(struct iscsi_cls_session *sess,
 extern int iscsi_destroy_conn(struct iscsi_cls_conn *conn);
 extern void iscsi_unblock_session(struct iscsi_cls_session *session);
 extern void iscsi_block_session(struct iscsi_cls_session *session);
-
+extern int iscsi_scan_finished(struct Scsi_Host *shost, unsigned long time);
 
 #endif