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-rw-r--r--include/scsi/sg.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
new file mode 100644
index 00000000..f3fd05b4
--- /dev/null
+++ b/include/scsi/sg.h
@@ -0,0 +1,129 @@
+#ifndef _SCSI_SG_H
+#define _SCSI_SG_H
+
+#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_FLAG_DIRECT_IO 1
+#define SG_FLAG_LUN_INHIBIT 2
+#define SG_FLAG_NO_DXFER 0x10000
+#define SG_INFO_OK_MASK 0x1
+#define SG_INFO_OK 0x0
+#define SG_INFO_CHECK 0x1
+#define SG_INFO_DIRECT_IO_MASK 0x6
+#define SG_INFO_INDIRECT_IO 0x0
+#define SG_INFO_DIRECT_IO 0x2
+#define SG_INFO_MIXED_IO 0x4
+#define SG_EMULATED_HOST 0x2203
+#define SG_SET_TRANSFORM 0x2204
+#define SG_GET_TRANSFORM 0x2205
+#define SG_SET_RESERVED_SIZE 0x2275
+#define SG_GET_RESERVED_SIZE 0x2272
+#define SG_GET_SCSI_ID 0x2276
+#define SG_SET_FORCE_LOW_DMA 0x2279
+#define SG_GET_LOW_DMA 0x227a
+#define SG_SET_FORCE_PACK_ID 0x227b
+#define SG_GET_PACK_ID 0x227c
+#define SG_GET_NUM_WAITING 0x227d
+#define SG_GET_SG_TABLESIZE 0x227F
+#define SG_GET_VERSION_NUM 0x2282
+#define SG_SCSI_RESET 0x2284
+#define SG_SCSI_RESET_NOTHING 0
+#define SG_SCSI_RESET_DEVICE 1
+#define SG_SCSI_RESET_BUS 2
+#define SG_SCSI_RESET_HOST 3
+#define SG_IO 0x2285
+#define SG_GET_REQUEST_TABLE 0x2286
+#define SG_SET_KEEP_ORPHAN 0x2287
+#define SG_GET_KEEP_ORPHAN 0x2288
+#define SG_SCATTER_SZ (8 * 4096)
+#define SG_DEFAULT_RETRIES 1
+#define SG_DEF_FORCE_LOW_DMA 0
+#define SG_DEF_FORCE_PACK_ID 0
+#define SG_DEF_KEEP_ORPHAN 0
+#define SG_DEF_RESERVED_SIZE SG_SCATTER_SZ
+#define SG_MAX_QUEUE 16
+#define SG_BIG_BUFF SG_DEF_RESERVED_SIZE
+#define SG_MAX_SENSE 16
+#define SG_SET_TIMEOUT 0x2201
+#define SG_GET_TIMEOUT 0x2202
+#define SG_GET_COMMAND_Q 0x2270
+#define SG_SET_COMMAND_Q 0x2271
+#define SG_SET_DEBUG 0x227e
+#define SG_NEXT_CMD_LEN 0x2283
+#define SG_DEFAULT_TIMEOUT (60*HZ)
+#define SG_DEF_COMMAND_Q 0
+#define SG_DEF_UNDERRUN_FLAG 0
+
+typedef struct sg_iovec {
+ void *iov_base;
+ unsigned long iov_len;
+} sg_iovec_t;
+
+typedef struct sg_io_hdr {
+ int interface_id;
+ int dxfer_direction;
+ unsigned char cmd_len;
+ unsigned char mx_sb_len;
+ unsigned short iovec_count;
+ unsigned dxfer_len;
+ void *dxferp;
+ unsigned char *cmdp;
+ unsigned char *sbp;
+ unsigned timeout;
+ unsigned flags;
+ int pack_id;
+ void *usr_ptr;
+ unsigned char status;
+ unsigned char masked_status;
+ unsigned char msg_status;
+ unsigned char sb_len_wr;
+ unsigned short host_status;
+ unsigned short driver_status;
+ int resid;
+ unsigned int duration;
+ unsigned int info;
+} sg_io_hdr_t;
+
+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];
+};
+
+typedef struct sg_req_info {
+ char req_state;
+ char orphan;
+ char sg_io_owned;
+ char problem;
+ int pack_id;
+ void *usr_ptr;
+ unsigned duration;
+ int unused;
+} sg_req_info_t;
+
+typedef struct sg_io_hdr Sg_io_hdr;
+typedef struct sg_io_vec Sg_io_vec;
+typedef struct sg_scsi_id Sg_scsi_id;
+typedef struct sg_req_info Sg_req_info;
+
+struct sg_header {
+ int pack_len;
+ int reply_len;
+ int pack_id;
+ int result;
+ unsigned twelve_byte:1;
+ unsigned target_status:5;
+ unsigned host_status:8;
+ unsigned driver_status:8;
+ unsigned other_flags:10;
+ unsigned char sense_buffer[SG_MAX_SENSE];
+};
+
+#endif