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| author | Scott Teel <scott.teel@pmcs.com> | 2015-11-04 22:52:16 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2015-11-09 18:39:27 +0100 |
| commit | c2adae44e9161612c89e52d233c83086195f454c (patch) | |
| tree | 34df4a5fc5ed054a8fb0f4c845e0bc81b6aaea39 /drivers/scsi/hpsa_cmd.h | |
| parent | hpsa: add discovery polling for PT RAID devices. (diff) | |
| download | linux-c2adae44e9161612c89e52d233c83086195f454c.tar.xz linux-c2adae44e9161612c89e52d233c83086195f454c.zip | |
hpsa: disable report lun data caching
When external target arrays are present, disable the firmware's
normal behavior of returning a cached copy of the report lun data,
and force it to collect new data each time we request a report luns.
This is necessary for external arrays, since there may be no
reliable signal from the external array to the smart array when
lun configuration changes, and thus when driver requests
report luns, it may be stale data.
Use diag options to turn off RPL data caching.
Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Justin Lindley <justin.lindley@pmcs.com>
Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hpsa_cmd.h')
| -rw-r--r-- | drivers/scsi/hpsa_cmd.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index c83eaf1b03e1..491034425132 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -287,6 +287,9 @@ struct SenseSubsystem_info { #define BMIC_SENSE_CONTROLLER_PARAMETERS 0x64 #define BMIC_IDENTIFY_PHYSICAL_DEVICE 0x15 #define BMIC_IDENTIFY_CONTROLLER 0x11 +#define BMIC_SET_DIAG_OPTIONS 0xF4 +#define BMIC_SENSE_DIAG_OPTIONS 0xF5 +#define HPSA_DIAG_OPTS_DISABLE_RLD_CACHING 0x40000000 /* Command List Structure */ union SCSI3Addr { |