diff options
author | Andrew Vasquez <andrew.vasquez@qlogic.com> | 2009-03-24 12:08:15 -0400 |
---|---|---|
committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-04-03 10:22:52 -0400 |
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 @@ | |||
176 | /* ISP request and response entry counts (37-65535) */ | 176 | /* ISP request and response entry counts (37-65535) */ |
177 | #define REQUEST_ENTRY_CNT_2100 128 /* Number of request entries. */ | 177 | #define REQUEST_ENTRY_CNT_2100 128 /* Number of request entries. */ |
178 | #define REQUEST_ENTRY_CNT_2200 2048 /* Number of request entries. */ | 178 | #define REQUEST_ENTRY_CNT_2200 2048 /* Number of request entries. */ |
179 | #define REQUEST_ENTRY_CNT_2XXX_EXT_MEM 4096 /* Number of request entries. */ | 179 | #define REQUEST_ENTRY_CNT_24XX 2048 /* Number of request entries. */ |
180 | #define REQUEST_ENTRY_CNT_24XX 4096 /* Number of request entries. */ | ||
181 | #define RESPONSE_ENTRY_CNT_2100 64 /* Number of response entries.*/ | 180 | #define RESPONSE_ENTRY_CNT_2100 64 /* Number of response entries.*/ |
182 | #define RESPONSE_ENTRY_CNT_2300 512 /* Number of response entries.*/ | 181 | #define RESPONSE_ENTRY_CNT_2300 512 /* Number of response entries.*/ |
183 | 182 | ||