From: Ben Greear <greearb@candelatech.com>
Date: Wed, 30 Sep 2009 12:08:16 +0000 (+0000)
Subject: ixgbe patch to provide NIC's tx/rx counters via ethtool
X-Git-Tag: v2.6.32-rc3~12^2~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aad719182d9c6a785931efe87b978eb6f7742e0e;p=pandora-kernel.git

ixgbe patch to provide NIC's tx/rx counters via ethtool

When LRO is enabled, the received packet and byte counters represent the
LRO'd packets, not the packets/bytes on the wire.  The Intel 82599 NIC has
registers that keep count of the physical packets.  Add these counters to
the ethtool stats.  The byte counters are 36-bit, but the high 4 bits were
being ignored in the 2.6.31 ixgbe driver:  Read those as well to allow
longer time between polling the stats to detect wraps.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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