AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

IB/ipath: Lower default number of kernel send buffers

Browse Source 
The default calculation for the number of send buffers to allocate to
the kernel was too high for the PCIe version of the chip thus leaving
fewer than desired send buffers for user MPI applications.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell 2007-07-06 12:48:38 -07:00 committed by Roland Dreier
parent f42b6471e9
commit 37a7e9b7f2
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/hw/ipath/ipath_init_chip.c
View File

@ -737,7 +737,7 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit)
uports = dd->ipath_cfgports ? dd->ipath_cfgports - 1 : 0;
if (ipath_kpiobufs == 0) {
/* not set by user (this is default) */
if (piobufs >= (uports * IPATH_MIN_USER_PORT_BUFCNT) + 32)
if (piobufs > 144)
kpiobufs = 32;
else
kpiobufs = 16;