hostbyte=DID_XXX driverbyte=DRIVER_XXXX 错误查询

Jul 16 08:06:53 localhost kernel: sd 11:0:0:0: [sdh] Synchronize Cache(10) failed: Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
Jul 16 08:06:53 localhost kernel: sd 11:0:0:0: [sdh] Start/Stop Unit failed: Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK

[   37.404796] sd 0:0:0:0: [sda] tag#3 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[   37.404806] blk_update_request: I/O error, dev sda, sector 0

Dec  6 18:12:13 localhost kernel: sd 20:0:0:0: [sdb] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
Dec  6 18:12:13 localhost kernel: blk_update_request: I/O error, dev sdb, sector 512

/*
 *  Use these to separate status msg and our bytes
 *
 *  These are set by:
 *
 *      status byte = set from target device
 *      msg_byte    = return status from host adapter itself.
 *      host_byte   = set by low-level driver to indicate status.
 *      driver_byte = set by mid-level.
 */
#define status_byte(result) (((result) >> 1) & 0x7f)
#define msg_byte(result)    (((result) >> 8) & 0xff)
#define host_byte(result)   (((result) >> 16) & 0xff)
#define driver_byte(result) (((result) >> 24) & 0xff)

......

/*
 * Host byte codes
 */

#define DID_OK          0x00    /* NO error                                */
#define DID_NO_CONNECT  0x01    /* Couldn't connect before timeout period  */
#define DID_BUS_BUSY    0x02    /* BUS stayed busy through time out period */
#define DID_TIME_OUT    0x03    /* TIMED OUT for other reason              */
#define DID_BAD_TARGET  0x04    /* BAD target.                             */
#define DID_ABORT       0x05    /* Told to abort for some other reason     */
#define DID_PARITY      0x06    /* Parity error                            */
#define DID_ERROR       0x07    /* Internal error                          */
#define DID_RESET       0x08    /* Reset by somebody.                      */
#define DID_BAD_INTR    0x09    /* Got an interrupt we weren't expecting.  */
#define DID_PASSTHROUGH 0x0a    /* Force command past mid-layer            */
#define DID_SOFT_ERROR  0x0b    /* The low level driver just wish a retry  */
#define DID_IMM_RETRY   0x0c    /* Retry without decrementing retry count  */
#define DID_REQUEUE    0x0d    /* Requeue command (no immediate retry) also
                 * without decrementing the retry count    */
#define DID_TRANSPORT_DISRUPTED 0x0e /* Transport error disrupted execution
                      * and the driver blocked the port to
                      * recover the link. Transport class will
                      * retry or fail IO */
#define DID_TRANSPORT_FAILFAST    0x0f /* Transport class fastfailed the io */
#define DID_TARGET_FAILURE 0x10 /* Permanent target failure, do not retry on
                 * other paths */
#define DID_NEXUS_FAILURE 0x11  /* Permanent nexus failure, retry on other
                 * paths might yield different results */
#define DID_ALLOC_FAILURE 0x12  /* Space allocation on the device failed */
#define DID_MEDIUM_ERROR  0x13  /* Medium error */
#define DRIVER_OK       0x00    /* Driver status                           */

/*
 *  These indicate the error that occurred, and what is available.
 */

#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

......
/*
 *  Use these to separate status msg and our bytes
 *
 *  These are set by:
 *
 *      status byte = set from target device
 *      msg_byte    = return status from host adapter itself.
 *      host_byte   = set by low-level driver to indicate status.
 *      driver_byte = set by mid-level.
 */
#define status_byte(result) (((result) >> 1) & 0x7f)
#define msg_byte(result)    (((result) >> 8) & 0xff)
#define host_byte(result)   (((result) >> 16) & 0xff)
#define driver_byte(result) (((result) >> 24) & 0xff)

#define sense_class(sense)  (((sense) >> 4) & 0x7)
#define sense_error(sense)  ((sense) & 0xf)
#define sense_valid(sense)  ((sense) & 0x80)
......