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mpt2sas, mpt3sas: log exceeded temperature thresholds

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This patch will log a message when driver receives "Temperature Threshold
exceeded" event from any temperature sensor.

The message will look similar to like:
mpt3sas0: Temperature Threshold flags a b c d exceeded for Sensor: x !!!
mpt3sas0: Current Temp In Celsius: y

where a b c d are threshold flags 0 1 2 3

Change_set:
1. Get the number of sensor count of this IOC by reading IO Unit page 8 at
   driver initialization time.
2. Also unmask the Temperature Threshold Event at driver initialization
   time
3. Whenever a MPI2_EVENT_TEMP_THRESHOLD event is received from the
   firmware, then print the sensor number, the maximum threshold number it
   has exceed and the current temperature of this sensor.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sreekanth Reddy
2015-01-12 11:38:56 +05:30
committed by Christoph Hellwig
parent cb16ef384f
commit 2d8ce8c9d4
8 changed files with 161 additions and 0 deletions
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31
drivers/scsi/mpt2sas/mpt2sas_scsih.c
View File

@@ -3646,6 +3646,31 @@ _scsih_check_volume_delete_events(struct MPT2SAS_ADAPTER *ioc,
le16_to_cpu(event_data->VolDevHandle));
}
/**
* _scsih_temp_threshold_events - display temperature threshold exceeded events
* @ioc: per adapter object
* @event_data: the temp threshold event data
* Context: interrupt time.
*
* Return nothing.
*/
static void
_scsih_temp_threshold_events(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventDataTemperature_t *event_data)
{
if (ioc->temp_sensors_count >= event_data->SensorNum) {
printk(MPT2SAS_ERR_FMT "Temperature Threshold flags %s%s%s%s"
" exceeded for Sensor: %d !!!\n", ioc->name,
((le16_to_cpu(event_data->Status) & 0x1) == 1) ? "0 " : " ",
((le16_to_cpu(event_data->Status) & 0x2) == 2) ? "1 " : " ",
((le16_to_cpu(event_data->Status) & 0x4) == 4) ? "2 " : " ",
((le16_to_cpu(event_data->Status) & 0x8) == 8) ? "3 " : " ",
event_data->SensorNum);
printk(MPT2SAS_ERR_FMT "Current Temp In Celsius: %d\n",
ioc->name, event_data->CurrentTemperature);
}
}
/**
* _scsih_flush_running_cmds - completing outstanding commands.
* @ioc: per adapter object
@@ -7557,6 +7582,12 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
case MPI2_EVENT_IR_PHYSICAL_DISK:
break;
case MPI2_EVENT_TEMP_THRESHOLD:
_scsih_temp_threshold_events(ioc,
(Mpi2EventDataTemperature_t *)
mpi_reply->EventData);
break;
default: /* ignore the rest */
return;
}