diff options
Diffstat (limited to 'include/scsi/scsi.h')
| -rw-r--r-- | include/scsi/scsi.h | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 7f392405991b..358f969f368f 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -62,6 +62,21 @@ static inline int scsi_is_wlun(u64 lun) return (lun & 0xff00) == SCSI_W_LUN_BASE; } +/** + * scsi_status_is_check_condition - check the status return. + * + * @status: the status passed up from the driver (including host and + * driver components) + * + * This returns true if the status code is SAM_STAT_CHECK_CONDITION. + */ +static inline int scsi_status_is_check_condition(int status) +{ + if (status < 0) + return false; + status &= 0xfe; + return status == SAM_STAT_CHECK_CONDITION; +} /* * MESSAGE CODES @@ -138,20 +153,6 @@ static inline int scsi_is_wlun(u64 lun) #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 - -/* * Internal return values. */ enum scsi_disposition { @@ -180,14 +181,10 @@ enum scsi_disposition { * These are set by: * * status byte = set from target device - * msg_byte = return status from host adapter itself. + * msg_byte (unused) * 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) @@ -259,10 +256,13 @@ enum scsi_disposition { * This returns true for known good conditions that may be treated as * command completed normally */ -static inline int scsi_status_is_good(int status) +static inline bool scsi_status_is_good(int status) { + if (status < 0) + return false; + if (host_byte(status) == DID_NO_CONNECT) - return 0; + return false; /* * FIXME: bit0 is listed as reserved in SCSI-2, but is |