From a470a51cd6481373cdf2b5934b1b9f7853688de9 Mon Sep 17 00:00:00 2001 From: Chaitra P B Date: Fri, 6 May 2016 14:29:27 +0530 Subject: [PATCH] mpt3sas: Handle active cable exception event In-order to handle this 'MPI2_EVENT_ACTIVE_CABLE_EXCEPTION' event, driver need to follow below steps, 1. Unmask the 'MPI2_EVENT_ACTIVE_CABLE_EXCEPTION' event, so that FW can notify this event to host driver. 2. After receiving this event, add this event to AEN event queue, for notifying this event to applications. 3. Then Print below message in kernel logs if the event data's reason code is zero, "Currently an active cable with ReceptacleID cannot be powered and devices connected to this active cable will not be seen. This active cable requires of power" This event is only for Intruder/Cutlass HBAs. Signed-off-by: Chaitra P B Reviewed-by: Tomas Henzl Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.c | 5 +++++ drivers/scsi/mpt3sas/mpt3sas_scsih.c | 13 +++++++++++++ 2 files changed, 18 insertions(+) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 93d7c28f8162..b7f4e664f5f3 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -655,6 +655,9 @@ _base_display_event_data(struct MPT3SAS_ADAPTER *ioc, case MPI2_EVENT_TEMP_THRESHOLD: desc = "Temperature Threshold"; break; + case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION: + desc = "Active cable exception"; + break; } if (!desc) @@ -5424,6 +5427,8 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc) _base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS); _base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED); _base_unmask_events(ioc, MPI2_EVENT_TEMP_THRESHOLD); + if (ioc->hba_mpi_version_belonged == MPI26_VERSION) + _base_unmask_events(ioc, MPI2_EVENT_ACTIVE_CABLE_EXCEPTION); r = _base_make_ioc_operational(ioc, CAN_SLEEP); if (r) diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index f2139e5604a3..4f2500b24c59 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -7848,6 +7848,7 @@ mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, Mpi2EventNotificationReply_t *mpi_reply; u16 event; u16 sz; + Mpi26EventDataActiveCableExcept_t *ActiveCableEventData; /* events turned off due to host reset or driver unloading */ if (ioc->remove_host || ioc->pci_error_recovery) @@ -7960,6 +7961,18 @@ mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, (Mpi2EventDataTemperature_t *) mpi_reply->EventData); break; + 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); + break; default: /* ignore the rest */ return 1; -- 2.20.1