From: Jesse Brandeburg Date: Thu, 18 Jan 2007 17:25:23 +0000 (-0800) Subject: e1000: fix NAPI performance on 4-port adapters X-Git-Tag: v2.6.21-rc1~92^2~31^2~112 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=60cba200f11b6f90f35634c5cd608773ae3721b7;p=pandora-kernel.git e1000: fix NAPI performance on 4-port adapters This fix attempts to solve a customer (IBM) reported issue with NAPI enabled e1000 having bad performance when transmitting simultaneously on four ports. The issue comes down to an interaction between NAPI, hardware interrupt balancing, and the driver rescheduling poll on the same processor. Try to fix by allowing the driver to re-enable interrupts sooner instead of polling one more time, when there was recently all the work completed in cleanup. Signed-off-by: Jesse Brandeburg Signed-off-by: Auke Kok --- Reading git-diff-tree failed