diff options
| author | Christoph Hellwig <hch@lst.de> | 2015-08-27 14:16:59 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-08-28 13:14:57 -0700 |
| commit | ee14c674e8fc57251223054fb52dc0ecfe711028 (patch) | |
| tree | 6f65bb8fd2380c4abed006139c8d6c820ae3d08f /include/scsi/scsi_dh.h | |
| parent | d95dbff2a41e934cd8789734b34dc591e78ba11c (diff) | |
scsi_dh: kill struct scsi_dh_data
Add a ->handler and a ->handler_data field to struct scsi_device and kill
this indirection. Also move struct scsi_device_handler to scsi_dh.h so that
changes to it don't require rebuilding every SCSI LLDD.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'include/scsi/scsi_dh.h')
| -rw-r--r-- | include/scsi/scsi_dh.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/scsi/scsi_dh.h b/include/scsi/scsi_dh.h index 3a37b4c45997..85d731746834 100644 --- a/include/scsi/scsi_dh.h +++ b/include/scsi/scsi_dh.h @@ -55,6 +55,23 @@ enum { SCSI_DH_NOSYS, SCSI_DH_DRIVER_MAX, }; + +typedef void (*activate_complete)(void *, int); +struct scsi_device_handler { + /* Used by the infrastructure */ + struct list_head list; /* list of scsi_device_handlers */ + + /* Filled by the hardware handler */ + struct module *module; + const char *name; + 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 *, activate_complete, void *); + int (*prep_fn)(struct scsi_device *, struct request *); + int (*set_params)(struct scsi_device *, const char *); +}; + #ifdef CONFIG_SCSI_DH extern int scsi_dh_activate(struct request_queue *, activate_complete, void *); extern int scsi_dh_attach(struct request_queue *, const char *); |