Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireles...

[linux-2.6-omap-h63xx.git] / include / linux / bsg.h

diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index dc0d7282c4cb3948b15a12a1da025a73808cb079..60e377b520f8e242c003b2973ac6fc8df4605e40 100644 (file)
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -1,21 +1,78 @@
 #ifndef BSG_H
 #define BSG_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
+
+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 class_device *class_dev;
        struct device *dev;
        int minor;
-       struct gendisk *disk;
-       struct list_head list;
+       struct request_queue *queue;
 };
 
-extern int bsg_register_disk(struct gendisk *);
-extern void bsg_unregister_disk(struct gendisk *);
+extern int bsg_register_queue(struct request_queue *, struct device *, const char *);
+extern void bsg_unregister_queue(struct request_queue *);
 #else
-struct bsg_class_device { };
-#define bsg_register_disk(disk)                (0)
-#define bsg_unregister_disk(disk)      do { } while (0)
+static inline int bsg_register_queue(struct request_queue * rq, struct device *dev, const char *name)
+{
+       return 0;
+}
+static inline void bsg_unregister_queue(struct request_queue *rq)
+{
+}
 #endif
 
+#endif /* __KERNEL__ */
+
 #endif