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Commit 6c44c0fe authored by Chaitra P B's avatar Chaitra P B Committed by Martin K. Petersen
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scsi: mpt3sas: Added print to notify cable running at a degraded speed. 



Driver processes the event MPI26_EVENT_ACTIVE_CABLE_DEGRADED when a
cable is present and is running at a degraded speed (below the SAS3 12
Gb/s rate). Prints added to inform the user that the cable is not
running at optimal speed.

Signed-off-by: default avatarChaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: default avatarSuganath Prabu S <suganath-prabu.subramani@broadcom.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 96b6ce4e

drivers/scsi/mpt3sas/mpi/mpi2_ioc.h

+2 −0
Original line number Diff line number Diff line
@@ -624,6 +624,8 @@ typedef struct _MPI26_EVENT_DATA_ACTIVE_CABLE_EXCEPT { 


/* defines for ReasonCode field */

#define MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER     (0x00)

#define MPI26_EVENT_ACTIVE_CABLE_PRESENT                (0x01)

#define MPI26_EVENT_ACTIVE_CABLE_DEGRADED               (0x02)



/*Hard Reset Received Event data */

drivers/scsi/mpt3sas/mpt3sas_scsih.c

+17 −8
Original line number Diff line number Diff line
@@ -8016,15 +8016,24 @@ mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, 
	case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:

		ActiveCableEventData =

		    (Mpi26EventDataActiveCableExcept_t *) mpi_reply->EventData;

		if (ActiveCableEventData->ReasonCode ==

				MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER) {

			pr_info(MPT3SAS_FMT "Currently an active cable with ReceptacleID %d",

			    ioc->name, ActiveCableEventData->ReceptacleID);

			pr_info("cannot be powered and devices connected to this active cable");

			pr_info("will not be seen. This active cable");

			pr_info("requires %d mW of power",

		switch (ActiveCableEventData->ReasonCode) {

		case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:

			pr_notice(MPT3SAS_FMT "Receptacle ID %d: This active cable"

				  " requires %d mW of power\n", ioc->name,

			     ActiveCableEventData->ReceptacleID,

			     ActiveCableEventData->ActiveCablePowerRequirement);

			pr_notice(MPT3SAS_FMT "Receptacle ID %d: Devices connected"

				  " to this active cable will not be seen\n",

			     ioc->name, ActiveCableEventData->ReceptacleID);

			break;



		case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:

			pr_notice(MPT3SAS_FMT "ReceptacleID %d: This cable",

				ioc->name, ActiveCableEventData->ReceptacleID);

			pr_notice(" is not running at an optimal speed(12 Gb/s)\n");

			break;

		}



		break;



	default: /* ignore the rest */