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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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36
drivers/scsi/mpt2sas/mpt2sas_config.c
View File

@@ -718,6 +718,42 @@ mpt2sas_config_get_iounit_pg3(struct MPT2SAS_ADAPTER *ioc,
return r;
}
/**
* mpt2sas_config_get_iounit_pg8 - obtain iounit page 8
* @ioc: per adapter object
* @mpi_reply: reply mf payload returned from firmware
* @config_page: contents of the config page
* Context: sleep.
*
* Returns 0 for success, non-zero for failure.
*/
int
mpt2sas_config_get_iounit_pg8(struct MPT2SAS_ADAPTER *ioc,
Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage8_t *config_page)
{
Mpi2ConfigRequest_t mpi_request;
int r;
memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
mpi_request.Function = MPI2_FUNCTION_CONFIG;
mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
mpi_request.Header.PageNumber = 8;
mpi_request.Header.PageVersion = MPI2_IOUNITPAGE8_PAGEVERSION;
mpt2sas_base_build_zero_len_sge(ioc, &mpi_request.PageBufferSGE);
r = _config_request(ioc, &mpi_request, mpi_reply,
MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
if (r)
goto out;
mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
r = _config_request(ioc, &mpi_request, mpi_reply,
MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
sizeof(*config_page));
out:
return r;
}
/**
* mpt2sas_config_get_ioc_pg8 - obtain ioc page 8
* @ioc: per adapter object