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;
unsigned retry_hwerror:1; /* Retry HARDWARE_ERROR */
unsigned last_sector_bug:1; /* do not use multisector accesses on
SD_LAST_BUGGY_SECTORS */
+ unsigned is_visible:1; /* is the device visible in sysfs */
DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */
struct list_head event_list; /* asserted events */
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 */
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 *);
};
struct scsi_dh_data {
struct scsi_device_handler *scsi_dh;
+ struct scsi_device *sdev;
+ struct kref kref;
char buf[0];
};
struct scsi_sense_hdr *);
extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
int retries, struct scsi_sense_hdr *sshdr);
-extern unsigned char *scsi_get_vpd_page(struct scsi_device *, u8 page);
+extern int scsi_get_vpd_page(struct scsi_device *, u8 page, unsigned char *buf,
+ int buf_len);
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,
int data_direction, void *buffer, unsigned bufflen,
struct scsi_sense_hdr *, int timeout, int retries,
int *resid);
-extern int scsi_execute_async(struct scsi_device *sdev,
- const unsigned char *cmd, int cmd_len, int data_direction,
- void *buffer, unsigned bufflen, int use_sg,
- int timeout, int retries, void *privdata,
- void (*done)(void *, char *, int, int),
- gfp_t gfp);
static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
{