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head/sys/dev/mpr/mpr_sas.c
| Show First 20 Lines • Show All 2,459 Lines • ▼ Show 20 Lines | mprsas_scsiio_complete(struct mpr_softc *sc, struct mpr_command *cm) | ||||
| case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: | case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN: | ||||
| /* resid is ignored for this condition */ | /* resid is ignored for this condition */ | ||||
| csio->resid = 0; | csio->resid = 0; | ||||
| mprsas_set_ccbstatus(ccb, CAM_DATA_RUN_ERR); | mprsas_set_ccbstatus(ccb, CAM_DATA_RUN_ERR); | ||||
| break; | break; | ||||
| case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: | case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED: | ||||
| case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: | case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED: | ||||
| /* | /* | ||||
| * Since these are generally external (i.e. hopefully | * These can sometimes be transient transport-related | ||||
| * transient transport-related) errors, retry these without | * errors, and sometimes persistent drive-related errors. | ||||
| * decrementing the retry count. | * We used to retry these without decrementing the retry | ||||
| * count by returning CAM_REQUEUE_REQ. Unfortunately, if | |||||
| * we hit a persistent drive problem that returns one of | |||||
| * these error codes, we would retry indefinitely. So, | |||||
| * return CAM_REQ_CMP_ERROR so that we decrement the retry | |||||
| * count and avoid infinite retries. We're taking the | |||||
| * potential risk of flagging false failures in the event | |||||
| * of a topology-related error (e.g. a SAS expander problem | |||||
| * causes a command addressed to a drive to fail), but | |||||
| * avoiding getting into an infinite retry loop. | |||||
| */ | */ | ||||
| mprsas_set_ccbstatus(ccb, CAM_REQUEUE_REQ); | mprsas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR); | ||||
| mprsas_log_command(cm, MPR_INFO, | mprsas_log_command(cm, MPR_INFO, | ||||
| "terminated ioc %x scsi %x state %x xfer %u\n", | "terminated ioc %x scsi %x state %x xfer %u\n", | ||||
| le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, | le16toh(rep->IOCStatus), rep->SCSIStatus, rep->SCSIState, | ||||
| le32toh(rep->TransferCount)); | le32toh(rep->TransferCount)); | ||||
| break; | break; | ||||
| case MPI2_IOCSTATUS_INVALID_FUNCTION: | case MPI2_IOCSTATUS_INVALID_FUNCTION: | ||||
| case MPI2_IOCSTATUS_INTERNAL_ERROR: | case MPI2_IOCSTATUS_INTERNAL_ERROR: | ||||
| case MPI2_IOCSTATUS_INVALID_VPID: | case MPI2_IOCSTATUS_INVALID_VPID: | ||||
| ▲ Show 20 Lines • Show All 1,057 Lines • Show Last 20 Lines | |||||