diff options
| author | Andrew Vasquez <andrew.vasquez@qlogic.com> | 2009-03-24 09:08:15 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-04-03 09:22:52 -0500 |
| commit | d743de66754a662399bd9fe7da7a34e189f71876 (patch) | |
| tree | db205f7c01d0c2db4114a7aa6d574e18d36d83b1 /drivers/scsi/qla2xxx/qla_def.h | |
| parent | 3d79038f92841052aced9aec43c9d9aa864d28ab (diff) | |
[SCSI] qla2xxx: Reduce request queue-size overhead with recent ISPs.
The original code to 'resize request-queues' based on iocb-counts
and employed during early ISP23xx testing was too
overly-pessimistic with regards to latencies in the firmware
pulling requests. Recent ISPs can easily keep up processing a
stream of commands from an abbreviated (effectively, half the
original size) queue.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_def.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_def.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 01b7fc6f000b..1a84dbf82510 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -176,8 +176,7 @@ /* ISP request and response entry counts (37-65535) */ #define REQUEST_ENTRY_CNT_2100 128 /* Number of request entries. */ #define REQUEST_ENTRY_CNT_2200 2048 /* Number of request entries. */ -#define REQUEST_ENTRY_CNT_2XXX_EXT_MEM 4096 /* Number of request entries. */ -#define REQUEST_ENTRY_CNT_24XX 4096 /* Number of request entries. */ +#define REQUEST_ENTRY_CNT_24XX 2048 /* Number of request entries. */ #define RESPONSE_ENTRY_CNT_2100 64 /* Number of response entries.*/ #define RESPONSE_ENTRY_CNT_2300 512 /* Number of response entries.*/ |