1 files changed, 8 insertions, 4 deletions

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index f097ae340bc1..7c4449900c24 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -81,11 +81,14 @@ struct scsi_device {
         struct list_head starved_entry;
         struct scsi_cmnd *current_cmnd; /* currently active command */
         unsigned short queue_depth;     /* How deep of a queue we want */
+        unsigned short max_queue_depth; /* max queue depth */
         unsigned short last_queue_full_depth; /* These two are used by */
         unsigned short last_queue_full_count; /* scsi_track_queue_full() */
-        unsigned long last_queue_full_time;/* don't let QUEUE_FULLs on the same
-                                           jiffie count on our counter, they
-                                           could all be from the same event. */
+        unsigned long last_queue_full_time;     /* last queue full time */
+        unsigned long queue_ramp_up_period;     /* ramp up period in jiffies */
+#define SCSI_DEFAULT_RAMP_UP_PERIOD     (120 * HZ)
+
+        unsigned long last_queue_ramp_up;       /* last queue ramp up time */
 
         unsigned int id, lun, channel;
 
@@ -175,6 +178,7 @@ struct scsi_dh_devlist {
         char *model;
 };
 
+typedef void (*activate_complete)(void *, int);
 struct scsi_device_handler {
         /* Used by the infrastructure */
         struct list_head list; /* list of scsi_device_handlers */
@@ -186,7 +190,7 @@ struct scsi_device_handler {
         int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *);
         int (*attach)(struct scsi_device *);
         void (*detach)(struct scsi_device *);
-        int (*activate)(struct scsi_device *);
+        int (*activate)(struct scsi_device *, activate_complete, void *);
         int (*prep_fn)(struct scsi_device *, struct request *);
         int (*set_params)(struct scsi_device *, const char *);
 };