Commit f9611c43 authored Dec 06, 2012 by Michael S. Tsirkin

vhost-net: enable zerocopy tx by default



Zero copy TX has been around for a while now.
We seem to be down to eliminating theoretical bugs
and performance tuning at this point:
it's probably time to enable it by default so that
most users get the benefit.

Keep the flag around meanwhile so users can experiment
with disabling this if they experience regressions.
I expect that we will remove it in the future.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

parent cedb9bdc

drivers/vhost/net.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -30,9 +30,10 @@

		#include "vhost.h"

		static int experimental_zcopytx;
		static int experimental_zcopytx = 1;
		module_param(experimental_zcopytx, int, 0444);
		MODULE_PARM_DESC(experimental_zcopytx, "Enable Experimental Zero Copy TX");
		MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;"
		" 1 -Enable; 0 - Disable");

		/* Max number of bytes transferred before requeueing the job.
		* Using this limit prevents one virtqueue from starving others. */