diff options
| -rw-r--r-- | drivers/scsi/constants.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/scsi_error.c | 15 | ||||
| -rw-r--r-- | include/scsi/scsi.h | 5 |
3 files changed, 21 insertions, 2 deletions
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 9785d7384199..4003deefb7d8 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -1364,7 +1364,8 @@ EXPORT_SYMBOL(scsi_print_sense); static const char * const hostbyte_table[]={ "DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET", "DID_ABORT", "DID_PARITY", "DID_ERROR", "DID_RESET", "DID_BAD_INTR", -"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE"}; +"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE", +"DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST" }; #define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table) static const char * const driverbyte_table[]={ diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index fecefa05cb62..5bf8be21a165 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1290,7 +1290,20 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) case DID_REQUEUE: return ADD_TO_MLQUEUE; - + case DID_TRANSPORT_DISRUPTED: + /* + * LLD/transport was disrupted during processing of the IO. + * The transport class is now blocked/blocking, + * and the transport will decide what to do with the IO + * based on its timers and recovery capablilities. + */ + return ADD_TO_MLQUEUE; + case DID_TRANSPORT_FAILFAST: + /* + * The transport decided to failfast the IO (most likely + * the fast io fail tmo fired), so send IO directly upwards. + */ + return SUCCESS; case DID_ERROR: if (msg_byte(scmd->result) == COMMAND_COMPLETE && status_byte(scmd->result) == RESERVATION_CONFLICT) diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 3a5662b2817e..a109165714d6 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -381,6 +381,11 @@ static inline int scsi_is_wlun(unsigned int lun) #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 DRIVER_OK 0x00 /* Driver status */ /* |