scsi/arm/queue.h

3  *  linux/drivers/acorn/scsi/queue.h: queue handling
18  * Function: void queue_initialise (Queue_t *queue)
19  * Purpose : initialise a queue
20  * Params  : queue - queue to initialise
22 extern int queue_initialise (Queue_t *queue);
25  * Function: void queue_free (Queue_t *queue)
26  * Purpose : free a queue
27  * Params  : queue - queue to free
29 extern void queue_free (Queue_t *queue);
32  * Function: struct scsi_cmnd *queue_remove (queue)
33  * Purpose : removes first SCSI command from a queue
34  * Params  : queue   - queue to remove command from
37 extern struct scsi_cmnd *queue_remove (Queue_t *queue);
40  * Function: struct scsi_cmnd *queue_remove_exclude_ref (queue, exclude)
41  * Purpose : remove a SCSI command from a queue
42  * Params  : queue   - queue to remove command from
46 extern struct scsi_cmnd *queue_remove_exclude(Queue_t *queue,
49 #define queue_add_cmd_ordered(queue,SCpnt) \
50 	__queue_add(queue,SCpnt,(SCpnt)->cmnd[0] == REQUEST_SENSE)
51 #define queue_add_cmd_tail(queue,SCpnt) \
52 	__queue_add(queue,SCpnt,0)
54  * Function: int __queue_add(Queue_t *queue, struct scsi_cmnd *SCpnt, int head)
55  * Purpose : Add a new command onto a queue
56  * Params  : queue - destination queue
58  *	     head  - add command to head of queue
61 extern int __queue_add(Queue_t *queue, struct scsi_cmnd *SCpnt, int head);
64  * Function: struct scsi_cmnd *queue_remove_tgtluntag (queue, target, lun, tag)
65  * Purpose : remove a SCSI command from the queue for a specified target/lun/tag
66  * Params  : queue  - queue to remove command from
72 extern struct scsi_cmnd *queue_remove_tgtluntag(Queue_t *queue, int target,
76  * Function: queue_remove_all_target(queue, target)
77  * Purpose : remove all SCSI commands from the queue for a specified target
78  * Params  : queue  - queue to remove command from
82 extern void queue_remove_all_target(Queue_t *queue, int target);
85  * Function: int queue_probetgtlun (queue, target, lun)
86  * Purpose : check to see if we have a command in the queue for the specified
88  * Params  : queue  - queue to look in
93 extern int queue_probetgtlun (Queue_t *queue, int target, int lun);
96  * Function: int queue_remove_cmd (Queue_t *queue, struct scsi_cmnd *SCpnt)
98  * Params  : queue - queue to look in
102 int queue_remove_cmd(Queue_t *queue, struct scsi_cmnd *SCpnt);