From: Bruce Allan <bruce.w.allan@intel.com>
Date: Fri, 13 May 2011 07:20:03 +0000 (+0000)
Subject: e1000e: do not schedule the Tx queue until ready
X-Git-Tag: v3.1-rc1~316^2~450^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=400484fa65ead1bbc3e86ea79e7505182a31bce1;p=pandora-kernel.git

e1000e: do not schedule the Tx queue until ready

Start the Tx queue when the interface is brought up in e1000e_up() but do
not schedule the queue until link is up as detected in the watchdog task
which sets netif_carrier_on.

Also flush the descriptors and clean the Tx and Rx rings before resetting
the hardware when bringing the interface down otherwise there is a small
window where the watchdog task can be triggered with netif_carrier_off
and the Tx ring not yet empty which causes an additional and unnecessary
reset.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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