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authorMatt Gates <matthew.gates@hp.com>2012-05-01 11:43:06 -0500
committerJames Bottomley <JBottomley@Parallels.com>2012-05-10 09:16:25 +0100
commit254f796b9f22b1944c64caabc356a56caaa2facd (patch)
tree4c5ee6950b15456b0d11c3c36587fa659baf6632 /drivers/scsi/hpsa_cmd.h
parent1d94f94d89848762306b4a8bd5e658c11828ab12 (diff)
[SCSI] hpsa: use multiple reply queues
Smart Arrays can support multiple reply queues onto which command completions may be deposited. It can help performance quite a bit to arrange for command completions to be processed on the same CPU from which they were submitted to increase the likelihood of cache hits. Signed-off-by: Matt Gates <matthew.gates@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/hpsa_cmd.h')
-rw-r--r--drivers/scsi/hpsa_cmd.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index 14b56c93cefa..43f163164b24 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -129,6 +129,7 @@
#define CFGTBL_Trans_Simple 0x00000002l
#define CFGTBL_Trans_Performant 0x00000004l
#define CFGTBL_Trans_use_short_tags 0x20000000l
+#define CFGTBL_Trans_enable_directed_msix (1 << 30)
#define CFGTBL_BusType_Ultra2 0x00000001l
#define CFGTBL_BusType_Ultra3 0x00000002l
@@ -380,8 +381,8 @@ struct TransTable_struct {
u32 RepQCount;
u32 RepQCtrAddrLow32;
u32 RepQCtrAddrHigh32;
- u32 RepQAddr0Low32;
- u32 RepQAddr0High32;
+#define MAX_REPLY_QUEUES 8
+ struct vals32 RepQAddr[MAX_REPLY_QUEUES];
};
struct hpsa_pci_info {