From: Jesse Brandeburg Date: Mon, 6 Jul 2009 10:44:20 +0000 (+0000) Subject: e1000: allow ethtool coalesece to adjust interrupts per second X-Git-Tag: v2.6.32-rc1~703^2~839 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94c9e5a89349a1f1ebabe0876c059dc387b8b2a0;p=pandora-kernel.git e1000: allow ethtool coalesece to adjust interrupts per second This patch allows on-the-fly adjustment of the interrupts per second generated by e1000 devices 82545/82546 (hardware support of ITR register is a requirement) adjust using this command: ethtool -C eth0 rx-usecs 10 where 10 is 10 microseconds per interrupt interval, so 10 = 100,000 interrupts per second, and 125 = 8000 interrupts per second. changes should be immediate. 1,3 are special values and indicate the automatic tuning mode to the driver, where 1 is 4000-90000 interrupts per second and 3 is 4000-20000 interrupts per second and is the driver default. Signed-off-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- Reading git-diff-tree failed