3 files changed, 31 insertions, 7 deletions

diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 9957f16dcc5d..bed4b7c9be99 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_host.h b/include/scsi/scsi_host.h
index 81d5234f6771..ac1b6125e3ae 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,
 };
 
@@ -575,7 +578,7 @@ struct Scsi_Host {
 	unsigned int  irq;
 	
 
-	unsigned long shost_state;
+	enum scsi_host_state shost_state;
 
 	/* ldm bits */
 	struct device		shost_gendev;
@@ -633,6 +636,7 @@ 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 +650,15 @@ 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 +676,6 @@ 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_transport_spi.h b/include/scsi/scsi_transport_spi.h
index a30d6cd4c0e8..6bdc4afb2483 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 *);