diff options
author | Yi Zou <yi.zou@intel.com> | 2009-08-25 13:59:03 -0700 |
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committer | James Bottomley <James.Bottomley@suse.de> | 2009-09-10 12:07:27 -0500 |
commit | 05cc7390735c49357b9ae67bf97f1c1579547f5b (patch) | |
tree | 350ec608799ade3d3ad8000c45008bc948542aaa /fs/fscache/stats.c | |
parent | b2f0091fbf8b475fa09b5e1712e0ab84cb3e1ca4 (diff) |
[SCSI] fcoe: Add sysfs parameter to fcoe for minimum DDP read I/O size
This adds fcoe_ddp_min as a module parameter for fcoe module to:
/sys/module/fcoe/parameters/ddp_min
It is observed that for some hardware, particularly Intel 82599, there is too
much overhead in setting up context for direct data placement (DDP) read when
the requested read I/O size is small. This is added as a module parameter for
performance tuning and is set as 0 by default and user can change this based
on their own hardware.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'fs/fscache/stats.c')
0 files changed, 0 insertions, 0 deletions