diff options
Diffstat (limited to 'include/scsi/scsi_host.h')
| -rw-r--r-- | include/scsi/scsi_host.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 1cee1e10094..db9914adeac 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -10,6 +10,7 @@ struct block_device; struct module; struct scsi_cmnd; struct scsi_device; +struct scsi_target; struct Scsi_Host; struct scsi_host_cmd_pool; struct scsi_transport_template; @@ -228,6 +229,30 @@ struct scsi_host_template { void (* slave_destroy)(struct scsi_device *); /* + * Before the mid layer attempts to scan for a new device attached + * to a target where no target currently exists, it will call this + * entry in your driver. Should your driver need to allocate any + * structs or perform any other init items in order to send commands + * to a currently unused target, then this is where you can perform + * those allocations. + * + * Return values: 0 on success, non-0 on failure + * + * Status: OPTIONAL + */ + int (* target_alloc)(struct scsi_target *); + + /* + * Immediately prior to deallocating the target structure, and + * after all activity to attached scsi devices has ceased, the + * midlayer calls this point so that the driver may deallocate + * and terminate any references to the target. + * + * Status: OPTIONAL + */ + void (* target_destroy)(struct scsi_target *); + + /* * fill in this function to allow the queue depth of this host * to be changeable (on a per device basis). returns either * the current queue depth setting (may be different from what |