mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 12:41:55 +00:00
d54b3538b0
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (119 commits) [SCSI] scsi_dh_rdac: Retry for NOT_READY check condition [SCSI] mpt2sas: make global symbols unique [SCSI] sd: Make revalidate less chatty [SCSI] sd: Try READ CAPACITY 16 first for SBC-2 devices [SCSI] sd: Refactor sd_read_capacity() [SCSI] mpt2sas v00.100.11.15 [SCSI] mpt2sas: add MPT2SAS_MINOR(221) to miscdevice.h [SCSI] ch: Add scsi type modalias [SCSI] 3w-9xxx: add power management support [SCSI] bsg: add linux/types.h include to bsg.h [SCSI] cxgb3i: fix function descriptions [SCSI] libiscsi: fix possbile null ptr session command cleanup [SCSI] iscsi class: remove host no argument from session creation callout [SCSI] libiscsi: pass session failure a session struct [SCSI] iscsi lib: remove qdepth param from iscsi host allocation [SCSI] iscsi lib: have lib create work queue for transmitting IO [SCSI] iscsi class: fix lock dep warning on logout [SCSI] libiscsi: don't cap queue depth in iscsi modules [SCSI] iscsi_tcp: replace scsi_debug/tcp_debug logging with iscsi conn logging [SCSI] libiscsi_tcp: replace tcp_debug/scsi_debug logging with session/conn logging ...
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
#ifndef BSG_H
|
|
#define BSG_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;
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#if defined(CONFIG_BLK_DEV_BSG)
|
|
struct bsg_class_device {
|
|
struct device *class_dev;
|
|
struct device *parent;
|
|
int minor;
|
|
struct request_queue *queue;
|
|
struct kref ref;
|
|
void (*release)(struct device *);
|
|
};
|
|
|
|
extern int bsg_register_queue(struct request_queue *q,
|
|
struct device *parent, const char *name,
|
|
void (*release)(struct device *));
|
|
extern void bsg_unregister_queue(struct request_queue *);
|
|
#else
|
|
static inline int bsg_register_queue(struct request_queue *q,
|
|
struct device *parent, const char *name,
|
|
void (*release)(struct device *))
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void bsg_unregister_queue(struct request_queue *q)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif
|