forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.5 KiB
67 lines
2.5 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
|
#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 flag constants below: |
|
* sg.h sg_io_hdr also has bits defined for it's flags member. These |
|
* two flag values (0x10 and 0x20) have the same meaning in sg.h . For |
|
* bsg the BSG_FLAG_Q_AT_HEAD flag is ignored since it is the deafult. |
|
*/ |
|
#define BSG_FLAG_Q_AT_TAIL 0x10 /* default is Q_AT_HEAD */ |
|
#define BSG_FLAG_Q_AT_HEAD 0x20 |
|
|
|
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 */
|
|
|