/*
* Structures and definitions for SCSI commands to the SG passthrough device.
*/
#ifndef _SCSI_SG_H
#define _SCSI_SG_H
#define SGIOC '"'
#define SG_SET_TIMEOUT _IOW(SGIOC, 0x01, u_int)
#define SG_GET_TIMEOUT _IO(SGIOC, 0x02)
#define SG_EMULATED_HOST _IOR(SGIOC, 0x03, int)
#define SG_SET_TRANSFORM _IO(SGIOC, 0x04)
#define SG_GET_TRANSFORM _IO(SGIOC, 0x05)
#define SG_GET_COMMAND_Q _IOW(SGIOC, 0x70, int)
#define SG_SET_COMMAND_Q _IOR(SGIOC, 0x71, int)
#define SG_GET_RESERVED_SIZE _IOR(SGIOC, 0x72, int)
#define SG_SET_RESERVED_SIZE _IOW(SGIOC, 0x75, int)
#define SG_GET_SCSI_ID _IOR(SGIOC, 0x76, struct sg_scsi_id)
#define SG_SET_FORCE_LOW_DMA _IOW(SGIOC, 0x79, int)
#define SG_GET_LOW_DMA _IOR(SGIOC, 0x7a, int)
#define SG_SET_FORCE_PACK_ID _IOW(SGIOC, 0x7b, int)
#define SG_GET_PACK_ID _IOR(SGIOC, 0x7c, int)
#define SG_GET_NUM_WAITING _IOR(SGIOC, 0x7d, int)
#define SG_SET_DEBUG _IOW(SGIOC, 0x7e, int)
#define SG_GET_SG_TABLESIZE _IOR(SGIOC, 0x7f, int)
#define SG_GET_VERSION_NUM _IOR(SGIOC, 0x82, int)
#define SG_NEXT_CMD_LEN _IOW(SGIOC, 0x83, int)
#define SG_SCSI_RESET _IOW(SGIOC, 0x84, int)
#define SG_IO _IOWR(SGIOC, 0x85, struct sg_io_hdr)
#define SG_GET_REQUEST_TABLE _IO(SGIOC, 0x86)
#define SG_SET_KEEP_ORPHAN _IOW(SGIOC, 0x87, int)
#define SG_GET_KEEP_ORPHAN _IOR(SGIOC, 0x88, int)
#define SG_GET_ACCESS_COUNT _IOR(SGIOC, 0x89, int)
struct sg_io_hdr {
int interface_id;
int dxfer_direction;
u_char cmd_len;
u_char mx_sb_len;
u_short iovec_count;
u_int dxfer_len;
void *dxferp;
u_char *cmdp;
u_char *sbp;
u_int timeout;
u_int flags;
int pack_id;
void *usr_ptr;
u_char status;
u_char masked_status;
u_char msg_status;
u_char sb_len_wr;
u_short host_status;
u_short driver_status;
int resid;
u_int duration;
u_int info;
};
struct sg_io_hdr32 {
int interface_id;
int dxfer_direction;
u_char cmd_len;
u_char mx_sb_len;
u_short iovec_count;
u_int dxfer_len;
uint32_t dxferp;
uint32_t cmdp;
uint32_t sbp;
u_int timeout;
u_int flags;
int pack_id;
uint32_t usr_ptr;
u_char status;
u_char masked_status;
u_char msg_status;
u_char sb_len_wr;
u_short host_status;
u_short driver_status;
int resid;
u_int duration;
u_int info;
};
#define SG_DXFER_NONE -1
#define SG_DXFER_TO_DEV -2
#define SG_DXFER_FROM_DEV -3
#define SG_DXFER_TO_FROM_DEV -4
#define SG_DXFER_UNKNOWN -5
#define SG_MAX_SENSE 16
struct sg_header {
int pack_len;
int reply_len;
int pack_id;
int result;
u_int twelve_byte:1;
u_int target_status:5;
u_int host_status:8;
u_int driver_status:8;
u_int other_flags:10;
u_char sense_buffer[SG_MAX_SENSE];
};
struct sg_scsi_id {
int host_no;
int channel;
int scsi_id;
int lun;
int scsi_type;
short h_cmd_per_lun;
short d_queue_depth;
int unused[2];
};
struct scsi_idlun {
uint32_t dev_id;
uint32_t host_unique_id;
};
/*
* Host codes
*/
#define DID_OK 0x00 /* OK */
#define DID_NO_CONNECT 0x01 /* timeout during connect */
#define DID_BUS_BUSY 0x02 /* timeout during command */
#define DID_TIME_OUT 0x03 /* other timeout */
#define DID_BAD_TARGET 0x04 /* bad target */
#define DID_ABORT 0x05 /* abort */
#define DID_PARITY 0x06 /* parity error */
#define DID_ERROR 0x07 /* internal error */
#define DID_RESET 0x08 /* reset by somebody */
#define DID_BAD_INTR 0x09 /* unexpected interrupt */
#define DID_PASSTHROUGH 0x0a /* passthrough */
#define DID_SOFT_ERROR 0x0b /* low driver wants retry */
#define DID_IMM_RETRY 0x0c /* retry without decreasing retrycnt */
/*
* Driver codes
*/
#define DRIVER_OK 0x00
#define DRIVER_BUSY 0x01
#define DRIVER_SOFT 0x02
#define DRIVER_MEDIA 0x03
#define DRIVER_ERROR 0x04
#define DRIVER_INVALID 0x05
#define DRIVER_TIMEOUT 0x06
#define DRIVER_HARD 0x07
#define DRIVER_SENSE 0x08
#define SUGGEST_RETRY 0x10
#define SUGGEST_ABORT 0x20
#define SUGGEST_REMAP 0x30
#define SUGGEST_DIE 0x40
#define SUGGEST_SENSE 0x80
#define SUGGEST_IS_OK 0xff
#define DRIVER_MASK 0x0f
#define SUGGEST_MASK 0xf0
/* Other definitions */
/* HZ isn't always available, so simulate it */
#define SG_DEFAULT_HZ 1000
#define SG_DEFAULT_TIMEOUT (60*SG_DEFAULT_HZ)
#endif /* !_SCSI_SG_H */
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