mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 13:13:57 +08:00
607ca46e97
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
#ifndef _UAPIBSG_H
|
|
#define _UAPIBSG_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
#define BSG_PROTOCOL_SCSI 0
|
|
|
|
#define BSG_SUB_PROTOCOL_SCSI_CMD 0
|
|
#define BSG_SUB_PROTOCOL_SCSI_TMF 1
|
|
#define BSG_SUB_PROTOCOL_SCSI_TRANSPORT 2
|
|
|
|
/*
|
|
* For flags member below
|
|
* sg.h sg_io_hdr also has bits defined for it's flags member. However
|
|
* none of these bits are implemented/used by bsg. The bits below are
|
|
* allocated to not conflict with sg.h ones anyway.
|
|
*/
|
|
#define BSG_FLAG_Q_AT_TAIL 0x10 /* default, == 0 at this bit, is Q_AT_HEAD */
|
|
|
|
struct sg_io_v4 {
|
|
__s32 guard; /* [i] 'Q' to differentiate from v3 */
|
|
__u32 protocol; /* [i] 0 -> SCSI , .... */
|
|
__u32 subprotocol; /* [i] 0 -> SCSI command, 1 -> SCSI task
|
|
management function, .... */
|
|
|
|
__u32 request_len; /* [i] in bytes */
|
|
__u64 request; /* [i], [*i] {SCSI: cdb} */
|
|
__u64 request_tag; /* [i] {SCSI: task tag (only if flagged)} */
|
|
__u32 request_attr; /* [i] {SCSI: task attribute} */
|
|
__u32 request_priority; /* [i] {SCSI: task priority} */
|
|
__u32 request_extra; /* [i] {spare, for padding} */
|
|
__u32 max_response_len; /* [i] in bytes */
|
|
__u64 response; /* [i], [*o] {SCSI: (auto)sense data} */
|
|
|
|
/* "dout_": data out (to device); "din_": data in (from device) */
|
|
__u32 dout_iovec_count; /* [i] 0 -> "flat" dout transfer else
|
|
dout_xfer points to array of iovec */
|
|
__u32 dout_xfer_len; /* [i] bytes to be transferred to device */
|
|
__u32 din_iovec_count; /* [i] 0 -> "flat" din transfer */
|
|
__u32 din_xfer_len; /* [i] bytes to be transferred from device */
|
|
__u64 dout_xferp; /* [i], [*i] */
|
|
__u64 din_xferp; /* [i], [*o] */
|
|
|
|
__u32 timeout; /* [i] units: millisecond */
|
|
__u32 flags; /* [i] bit mask */
|
|
__u64 usr_ptr; /* [i->o] unused internally */
|
|
__u32 spare_in; /* [i] */
|
|
|
|
__u32 driver_status; /* [o] 0 -> ok */
|
|
__u32 transport_status; /* [o] 0 -> ok */
|
|
__u32 device_status; /* [o] {SCSI: command completion status} */
|
|
__u32 retry_delay; /* [o] {SCSI: status auxiliary information} */
|
|
__u32 info; /* [o] additional information */
|
|
__u32 duration; /* [o] time to complete, in milliseconds */
|
|
__u32 response_len; /* [o] bytes of response actually written */
|
|
__s32 din_resid; /* [o] din_xfer_len - actual_din_xfer_len */
|
|
__s32 dout_resid; /* [o] dout_xfer_len - actual_dout_xfer_len */
|
|
__u64 generated_tag; /* [o] {SCSI: transport generated task tag} */
|
|
__u32 spare_out; /* [o] */
|
|
|
|
__u32 padding;
|
|
};
|
|
|
|
|
|
#endif /* _UAPIBSG_H */
|