compat: scsi: sg: fix v3 compat read/write interface

[linux.git] / include / scsi / sg.h

diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index f91bcca604e444d259d3814ad92f5d882747bf27..29c7ad04d2e26addc828958f5e0e9264915b3d74 100644 (file)
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -68,6 +68,36 @@ typedef struct sg_io_hdr
     unsigned int info;          /* [o] auxiliary information */
 } sg_io_hdr_t;  /* 64 bytes long (on i386) */
 
+#if defined(__KERNEL__)
+#include <linux/compat.h>
+
+struct compat_sg_io_hdr {
+       compat_int_t interface_id;      /* [i] 'S' for SCSI generic (required) */
+       compat_int_t dxfer_direction;   /* [i] data transfer direction  */
+       unsigned char cmd_len;          /* [i] SCSI command length ( <= 16 bytes) */
+       unsigned char mx_sb_len;        /* [i] max length to write to sbp */
+       unsigned short iovec_count;     /* [i] 0 implies no scatter gather */
+       compat_uint_t dxfer_len;        /* [i] byte count of data transfer */
+       compat_uint_t dxferp;           /* [i], [*io] points to data transfer memory
+                                               or scatter gather list */
+       compat_uptr_t cmdp;             /* [i], [*i] points to command to perform */
+       compat_uptr_t sbp;              /* [i], [*o] points to sense_buffer memory */
+       compat_uint_t timeout;          /* [i] MAX_UINT->no timeout (unit: millisec) */
+       compat_uint_t flags;            /* [i] 0 -> default, see SG_FLAG... */
+       compat_int_t pack_id;           /* [i->o] unused internally (normally) */
+       compat_uptr_t usr_ptr;          /* [i->o] unused internally */
+       unsigned char status;           /* [o] scsi status */
+       unsigned char masked_status;    /* [o] shifted, masked scsi status */
+       unsigned char msg_status;       /* [o] messaging level data (optional) */
+       unsigned char sb_len_wr;        /* [o] byte count actually written to sbp */
+       unsigned short host_status;     /* [o] errors from host adapter */
+       unsigned short driver_status;   /* [o] errors from software driver */
+       compat_int_t resid;             /* [o] dxfer_len - actual_transferred */
+       compat_uint_t duration;         /* [o] time taken by cmd (unit: millisec) */
+       compat_uint_t info;             /* [o] auxiliary information */
+};
+#endif
+
 #define SG_INTERFACE_ID_ORIG 'S'
 
 /* Use negative values to flag difference from original sg_header structure */