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| author | Suganath prabu Subramani <suganath-prabu.subramani@avagotech.com> | 2016-01-28 07:37:04 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-02-24 03:27:02 +0100 |
| commit | ebb3024e2fd5578c800a5ae9165dd7f1a0844c11 (patch) | |
| tree | 751c930e0aec63c0bb7fd76b19566afcff173ef3 /drivers/scsi/mpt3sas/mpt3sas_base.h | |
| parent | mpt3sas: Added smp_affinity_enable module parameter. (diff) | |
| download | linux-ebb3024e2fd5578c800a5ae9165dd7f1a0844c11.tar.xz linux-ebb3024e2fd5578c800a5ae9165dd7f1a0844c11.zip | |
mpt3sas: Add support for configurable Chain Frame Size
Added support for configurable Chain Frame Size. Calculate the
Chain Message Frame size from the IOCMaxChainSegementSize (iocfacts).
Applicable only for mpt3sas/SAS3.0 HBA's.
Signed-off-by: Suganath prabu Subramani <suganath-prabu.subramani@avagotech.com>
Signed-off-by: Chaitra P B <chaitra.basappa@avagotech.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_base.h')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index 4b52a0757513..d1fee3483a14 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -129,6 +129,9 @@ #define MPT3SAS_INVALID_DEVICE_HANDLE 0xFFFF +#define MAX_CHAIN_ELEMT_SZ 16 +#define DEFAULT_NUM_FWCHAIN_ELEMTS 8 + /* * reset phases */ @@ -759,7 +762,7 @@ struct mpt3sas_facts { u32 IOCCapabilities; union mpi3_version_union FWVersion; u16 IOCRequestFrameSize; - u16 Reserved3; + u16 IOCMaxChainSegmentSize; u16 MaxInitiators; u16 MaxTargets; u16 MaxSasExpanders; @@ -906,6 +909,8 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc); * @max_sges_in_chain_message: number sg elements per chain * @chains_needed_per_io: max chains per io * @chain_depth: total chains allocated + * @chain_segment_sz: gives the max number of + * SGEs accommodate on single chain buffer * @hi_priority_smid: * @hi_priority: * @hi_priority_dma: @@ -1113,6 +1118,7 @@ struct MPT3SAS_ADAPTER { u16 max_sges_in_chain_message; u16 chains_needed_per_io; u32 chain_depth; + u16 chain_segment_sz; /* hi-priority queue */ u16 hi_priority_smid; |