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Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_base.h')
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_base.h8
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;