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Commit bf451522 authored by Eric Moore's avatar Eric Moore Committed by James Bottomley
Browse files

[SCSI] mptfusion: sas nexus loss support 



sas nexus loss support for systems that suport failover.

Signed-off-by: default avatarEric Moore <Eric.Moore@lsil.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 4f766dc6

drivers/message/fusion/mptscsih.c

+18 −1
Original line number Diff line number Diff line
@@ -66,6 +66,7 @@ 


#include "mptbase.h"

#include "mptscsih.h"

#include "lsi/mpi_log_sas.h"



/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

#define my_NAME		"Fusion MPT SCSI Host driver"
@@ -682,8 +683,24 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr) 
			}

			break;



		case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:	/* 0x0048 */

		case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:		/* 0x004B */

			if ( ioc->bus_type == SAS ) {

				u16 ioc_status = le16_to_cpu(pScsiReply->IOCStatus);

				if (ioc_status & MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {

					u32 log_info = le32_to_cpu(mr->u.reply.IOCLogInfo);

					log_info &=SAS_LOGINFO_MASK;

					if (log_info == SAS_LOGINFO_NEXUS_LOSS) {

						sc->result = (DID_BUS_BUSY << 16);

						break;

					}

				}

			}



			/*

			 * Allow non-SAS & non-NEXUS_LOSS to drop into below code

			 */



		case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:	/* 0x0048 */

		case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:		/* 0x004C */

			/* Linux handles an unsolicited DID_RESET better

			 * than an unsolicited DID_ABORT.