[SCSI] mptfusion: sas nexus loss support
sas nexus loss support for systems that suport failover. Signed-off-by: Eric Moore <Eric.Moore@lsil.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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1 changed files with 18 additions and 1 deletions
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@ -66,6 +66,7 @@
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#include "mptbase.h"
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#include "mptscsih.h"
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#include "lsi/mpi_log_sas.h"
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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#define my_NAME "Fusion MPT SCSI Host driver"
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@ -682,8 +683,24 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
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}
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break;
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case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
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case MPI_IOCSTATUS_SCSI_IOC_TERMINATED: /* 0x004B */
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if ( ioc->bus_type == SAS ) {
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u16 ioc_status = le16_to_cpu(pScsiReply->IOCStatus);
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if (ioc_status & MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
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u32 log_info = le32_to_cpu(mr->u.reply.IOCLogInfo);
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log_info &=SAS_LOGINFO_MASK;
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if (log_info == SAS_LOGINFO_NEXUS_LOSS) {
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sc->result = (DID_BUS_BUSY << 16);
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break;
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}
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}
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}
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/*
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* Allow non-SAS & non-NEXUS_LOSS to drop into below code
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*/
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case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
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case MPI_IOCSTATUS_SCSI_EXT_TERMINATED: /* 0x004C */
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/* Linux handles an unsolicited DID_RESET better
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* than an unsolicited DID_ABORT.
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