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: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
index 8bae305..af4be40 100644 (file)
--- a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
@@ -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 */
 

diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index b5c966e..8f524a2 100644 (file)
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -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",
-                           ActiveCableEventData->ActiveCablePowerRequirement);
+               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 */