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authorYi Zou <yi.zou@intel.com>2009-08-25 13:59:03 -0700
committerJames Bottomley <James.Bottomley@suse.de>2009-09-10 12:07:27 -0500
commit05cc7390735c49357b9ae67bf97f1c1579547f5b (patch)
tree350ec608799ade3d3ad8000c45008bc948542aaa /net/llc/llc_conn.c
parentb2f0091fbf8b475fa09b5e1712e0ab84cb3e1ca4 (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 'net/llc/llc_conn.c')
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