Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6

12 files changed, 145 insertions, 44 deletions

diff --git a/include/linux/attribute_container.h b/include/linux/attribute_container.h
index af1010b..93bfb0b 100644
--- a/include/linux/attribute_container.h
+++ b/include/linux/attribute_container.h
@@ -11,10 +11,12 @@
 
 #include <linux/device.h>
 #include <linux/list.h>
+#include <linux/klist.h>
+#include <linux/spinlock.h>
 
 struct attribute_container {
 	struct list_head	node;
-	struct list_head	containers;
+	struct klist		containers;
 	struct class		*class;
 	struct class_device_attribute **attrs;
 	int (*match)(struct attribute_container *, struct device *);
@@ -62,12 +64,8 @@ int attribute_container_add_class_device_adapter(struct attribute_container *con
 						 struct class_device *classdev);
 void attribute_container_remove_attrs(struct class_device *classdev);
 void attribute_container_class_device_del(struct class_device *classdev);
-
-
-
-
-
-
+struct attribute_container *attribute_container_classdev_to_container(struct class_device *);
+struct class_device *attribute_container_find_class_device(struct attribute_container *, struct device *);
 struct class_device_attribute **attribute_container_classdev_to_attrs(const struct class_device *classdev);
 
 #endif
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 69e0479..cdaf03a 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -295,7 +295,13 @@ extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int);
 extern int bio_get_nr_vecs(struct block_device *);
 extern struct bio *bio_map_user(struct request_queue *, struct block_device *,
 				unsigned long, unsigned int, int);
+struct sg_iovec;
+extern struct bio *bio_map_user_iov(struct request_queue *,
+				    struct block_device *,
+				    struct sg_iovec *, int, int);
 extern void bio_unmap_user(struct bio *);
+extern struct bio *bio_map_kern(struct request_queue *, void *, unsigned int,
+				unsigned int);
 extern void bio_set_pages_dirty(struct bio *bio);
 extern void bio_check_pages_dirty(struct bio *bio);
 extern struct bio *bio_copy_user(struct request_queue *, unsigned long, unsigned int, int);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 19bd8e7..aefa26f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -563,10 +563,12 @@ extern void blk_sync_queue(struct request_queue *q);
 extern void __blk_stop_queue(request_queue_t *q);
 extern void blk_run_queue(request_queue_t *);
 extern void blk_queue_activity_fn(request_queue_t *, activity_fn *, void *);
-extern struct request *blk_rq_map_user(request_queue_t *, int, void __user *, unsigned int);
-extern int blk_rq_unmap_user(struct request *, struct bio *, unsigned int);
-extern int blk_execute_rq(request_queue_t *, struct gendisk *, struct request *);
-
+extern int blk_rq_map_user(request_queue_t *, struct request *, void __user *, unsigned int);
+extern int blk_rq_unmap_user(struct bio *, unsigned int);
+extern int blk_rq_map_kern(request_queue_t *, struct request *, void *, unsigned int, unsigned int);
+extern int blk_rq_map_user_iov(request_queue_t *, struct request *, struct sg_iovec *, int);
+extern int blk_execute_rq(request_queue_t *, struct gendisk *,
+			  struct request *, int);
 static inline request_queue_t *bdev_get_queue(struct block_device *bdev)
 {
 	return bdev->bd_disk->queue;
diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h
new file mode 100644
index 0000000..a71123c
--- /dev/null
+++ b/include/linux/raid_class.h
@@ -0,0 +1,59 @@
+/*
+ */
+#include <linux/transport_class.h>
+
+struct raid_template {
+	struct transport_container raid_attrs;
+};
+
+struct raid_function_template {
+	void *cookie;
+	int (*is_raid)(struct device *);
+	void (*get_resync)(struct device *);
+	void (*get_state)(struct device *);
+};
+
+enum raid_state {
+	RAID_ACTIVE = 1,
+	RAID_DEGRADED,
+	RAID_RESYNCING,
+	RAID_OFFLINE,
+};
+
+struct raid_data {
+	struct list_head component_list;
+	int component_count;
+	int level;
+	enum raid_state state;
+	int resync;
+};
+
+#define DEFINE_RAID_ATTRIBUTE(type, attr)				      \
+static inline void							      \
+raid_set_##attr(struct raid_template *r, struct device *dev, type value) {    \
+	struct class_device *cdev =					      \
+		attribute_container_find_class_device(&r->raid_attrs.ac, dev);\
+	struct raid_data *rd;						      \
+	BUG_ON(!cdev);							      \
+	rd = class_get_devdata(cdev);					      \
+	rd->attr = value;						      \
+}									      \
+static inline type							      \
+raid_get_##attr(struct raid_template *r, struct device *dev) {		      \
+	struct class_device *cdev =					      \
+		attribute_container_find_class_device(&r->raid_attrs.ac, dev);\
+	struct raid_data *rd;						      \
+	BUG_ON(!cdev);							      \
+	rd = class_get_devdata(cdev);					      \
+	return rd->attr;						      \
+}
+
+DEFINE_RAID_ATTRIBUTE(int, level)
+DEFINE_RAID_ATTRIBUTE(int, resync)
+DEFINE_RAID_ATTRIBUTE(enum raid_state, state)
+	
+struct raid_template *raid_class_attach(struct raid_function_template *);
+void raid_class_release(struct raid_template *);
+
+void raid_component_add(struct raid_template *, struct device *,
+			struct device *);
diff --git a/include/linux/transport_class.h b/include/linux/transport_class.h
index 87d98d1..1d6cc22 100644
--- a/include/linux/transport_class.h
+++ b/include/linux/transport_class.h
@@ -12,11 +12,16 @@
 #include <linux/device.h>
 #include <linux/attribute_container.h>
 
+struct transport_container;
+
 struct transport_class {
 	struct class class;
-	int (*setup)(struct device *);
-	int (*configure)(struct device *);
-	int (*remove)(struct device *);
+	int (*setup)(struct transport_container *, struct device *,
+		     struct class_device *);
+	int (*configure)(struct transport_container *, struct device *,
+			 struct class_device *);
+	int (*remove)(struct transport_container *, struct device *,
+		      struct class_device *);
 };
 
 #define DECLARE_TRANSPORT_CLASS(cls, nm, su, rm, cfg)			\
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 9957f16..bed4b7c 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -51,12 +51,16 @@ struct scsi_cmnd {
 	 * printk's to use ->pid, so that we can kill this field.
 	 */
 	unsigned long serial_number;
+	/*
+	 * This is set to jiffies as it was when the command was first
+	 * allocated.  It is used to time how long the command has
+	 * been outstanding
+	 */
+	unsigned long jiffies_at_alloc;
 
 	int retries;
 	int allowed;
 	int timeout_per_command;
-	int timeout_total;
-	int timeout;
 
 	unsigned char cmd_len;
 	unsigned char old_cmd_len;
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 12e9093..b090a11 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -3,8 +3,10 @@
 
 struct scsi_cmnd;
 struct scsi_request;
+struct scsi_sense_hdr;
 
 extern void scsi_print_command(struct scsi_cmnd *);
+extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *);
 extern void __scsi_print_command(unsigned char *);
 extern void scsi_print_sense(const char *, struct scsi_cmnd *);
 extern void scsi_print_req_sense(const char *, struct scsi_request *);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 835af8e..da63722 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -8,8 +8,17 @@
 
 struct request_queue;
 struct scsi_cmnd;
-struct scsi_mode_data;
 struct scsi_lun;
+struct scsi_sense_hdr;
+
+struct scsi_mode_data {
+	__u32	length;
+	__u16	block_descriptor_length;
+	__u8	medium_type;
+	__u8	device_specific;
+	__u8	header_length;
+	__u8	longlba:1;
+};
 
 /*
  * sdev state: If you alter this, you also need to alter scsi_sysfs.c
@@ -228,7 +237,8 @@ extern int scsi_set_medium_removal(struct scsi_device *, char);
 
 extern int scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage,
 			   unsigned char *buffer, int len, int timeout,
-			   int retries, struct scsi_mode_data *data);
+			   int retries, struct scsi_mode_data *data,
+			   struct scsi_sense_hdr *);
 extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
 				int retries);
 extern int scsi_device_set_state(struct scsi_device *sdev,
@@ -247,6 +257,14 @@ extern void int_to_scsilun(unsigned int, struct scsi_lun *);
 extern const char *scsi_device_state_name(enum scsi_device_state);
 extern int scsi_is_sdev_device(const struct device *);
 extern int scsi_is_target_device(const struct device *);
+extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
+			int data_direction, void *buffer, unsigned bufflen,
+			unsigned char *sense, int timeout, int retries,
+			int flag);
+extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
+			    int data_direction, void *buffer, unsigned bufflen,
+			    struct scsi_sense_hdr *, int timeout, int retries);
+
 static inline int scsi_device_online(struct scsi_device *sdev)
 {
 	return sdev->sdev_state != SDEV_OFFLINE;
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 80557f8..fabd879 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -26,10 +26,15 @@ struct scsi_sense_hdr {		/* See SPC-3 section 4.5 */
 	u8 additional_length;	/* always 0 for fixed sense format */
 };
 
+static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
+{
+	if (!sshdr)
+		return 0;
+
+	return (sshdr->response_code & 0x70) == 0x70;
+}
+
 
-extern void scsi_add_timer(struct scsi_cmnd *, int,
-		void (*)(struct scsi_cmnd *));
-extern int scsi_delete_timer(struct scsi_cmnd *);
 extern void scsi_report_bus_reset(struct Scsi_Host *, int);
 extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
 extern int scsi_block_when_processing_errors(struct scsi_device *);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 81d5234..916144b 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -429,12 +429,15 @@ struct scsi_host_template {
 };
 
 /*
- * shost states
+ * shost state: If you alter this, you also need to alter scsi_sysfs.c
+ * (for the ascii descriptions) and the state model enforcer:
+ * scsi_host_set_state()
  */
-enum {
-	SHOST_ADD,
-	SHOST_DEL,
+enum scsi_host_state {
+	SHOST_CREATED = 1,
+	SHOST_RUNNING,
 	SHOST_CANCEL,
+	SHOST_DEL,
 	SHOST_RECOVERY,
 };
 
@@ -464,12 +467,10 @@ struct Scsi_Host {
 	struct task_struct    * ehandler;  /* Error recovery thread. */
 	struct semaphore      * eh_wait;   /* The error recovery thread waits
 					      on this. */
-	struct completion     * eh_notify; /* wait for eh to begin or end */
 	struct semaphore      * eh_action; /* Wait for specific actions on the
                                           host. */
 	unsigned int            eh_active:1; /* Indicates the eh thread is awake and active if
                                           this is true. */
-	unsigned int            eh_kill:1; /* set when killing the eh thread */
 	wait_queue_head_t       host_wait;
 	struct scsi_host_template *hostt;
 	struct scsi_transport_template *transportt;
@@ -575,7 +576,7 @@ struct Scsi_Host {
 	unsigned int  irq;
 	
 
-	unsigned long shost_state;
+	enum scsi_host_state shost_state;
 
 	/* ldm bits */
 	struct device		shost_gendev;
@@ -633,6 +634,7 @@ extern void scsi_remove_host(struct Scsi_Host *);
 extern struct Scsi_Host *scsi_host_get(struct Scsi_Host *);
 extern void scsi_host_put(struct Scsi_Host *t);
 extern struct Scsi_Host *scsi_host_lookup(unsigned short);
+extern const char *scsi_host_state_name(enum scsi_host_state);
 
 extern u64 scsi_calculate_bounce_limit(struct Scsi_Host *);
 
@@ -646,6 +648,15 @@ static inline struct device *scsi_get_device(struct Scsi_Host *shost)
         return shost->shost_gendev.parent;
 }
 
+/**
+ * scsi_host_scan_allowed - Is scanning of this host allowed
+ * @shost:	Pointer to Scsi_Host.
+ **/
+static inline int scsi_host_scan_allowed(struct Scsi_Host *shost)
+{
+	return shost->shost_state == SHOST_RUNNING;
+}
+
 extern void scsi_unblock_requests(struct Scsi_Host *);
 extern void scsi_block_requests(struct Scsi_Host *);
 
@@ -663,5 +674,6 @@ extern struct scsi_device *scsi_get_host_dev(struct Scsi_Host *);
 /* legacy interfaces */
 extern struct Scsi_Host *scsi_register(struct scsi_host_template *, int);
 extern void scsi_unregister(struct Scsi_Host *);
+extern int scsi_host_set_state(struct Scsi_Host *, enum scsi_host_state);
 
 #endif /* _SCSI_SCSI_HOST_H */
diff --git a/include/scsi/scsi_request.h b/include/scsi/scsi_request.h
index 9871940..6a14002 100644
--- a/include/scsi/scsi_request.h
+++ b/include/scsi/scsi_request.h
@@ -54,20 +54,4 @@ extern void scsi_do_req(struct scsi_request *, const void *cmnd,
 			void *buffer, unsigned bufflen,
 			void (*done) (struct scsi_cmnd *),
 			int timeout, int retries);
-
-struct scsi_mode_data {
-	__u32	length;
-	__u16	block_descriptor_length;
-	__u8	medium_type;
-	__u8	device_specific;
-	__u8	header_length;
-	__u8	longlba:1;
-};
-
-extern int __scsi_mode_sense(struct scsi_request *SRpnt, int dbd,
-			     int modepage, unsigned char *buffer, int len,
-			     int timeout, int retries,
-			     struct scsi_mode_data *data);
-
-
 #endif /* _SCSI_SCSI_REQUEST_H */
diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h
index a30d6cd..6bdc4af 100644
--- a/include/scsi/scsi_transport_spi.h
+++ b/include/scsi/scsi_transport_spi.h
@@ -39,6 +39,7 @@ struct spi_transport_attrs {
 	unsigned int rd_strm:1;	/* Read streaming enabled */
 	unsigned int rti:1;	/* Retain Training Information */
 	unsigned int pcomp_en:1;/* Precompensation enabled */
+	unsigned int hold_mcs:1;/* Hold Margin Control Settings */
 	unsigned int initial_dv:1; /* DV done to this target yet  */
 	unsigned long flags;	/* flags field for drivers to use */
 	/* Device Properties fields */
@@ -78,6 +79,7 @@ struct spi_host_attrs {
 #define spi_rd_strm(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->rd_strm)
 #define spi_rti(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->rti)
 #define spi_pcomp_en(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->pcomp_en)
+#define spi_hold_mcs(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->hold_mcs)
 #define spi_initial_dv(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->initial_dv)
 
 #define spi_support_sync(x)	(((struct spi_transport_attrs *)&(x)->starget_data)->support_sync)
@@ -114,8 +116,11 @@ struct spi_function_template {
 	void	(*set_rti)(struct scsi_target *, int);
 	void	(*get_pcomp_en)(struct scsi_target *);
 	void	(*set_pcomp_en)(struct scsi_target *, int);
+	void	(*get_hold_mcs)(struct scsi_target *);
+	void	(*set_hold_mcs)(struct scsi_target *, int);
 	void	(*get_signalling)(struct Scsi_Host *);
 	void	(*set_signalling)(struct Scsi_Host *, enum spi_signal_type);
+	int	(*deny_binding)(struct scsi_target *);
 	/* The driver sets these to tell the transport class it
 	 * wants the attributes displayed in sysfs.  If the show_ flag
 	 * is not set, the attribute will be private to the transport
@@ -130,6 +135,7 @@ struct spi_function_template {
 	unsigned long	show_rd_strm:1;
 	unsigned long	show_rti:1;
 	unsigned long	show_pcomp_en:1;
+	unsigned long	show_hold_mcs:1;
 };
 
 struct scsi_transport_template *spi_attach_transport(struct spi_function_template *);