From: stephen hemminger <shemminger@vyatta.com>
Date: Fri, 31 Dec 2010 15:34:27 +0000 (+0000)
Subject: sky2: implement 64 bit stats
X-Git-Tag: v2.6.38-rc1~476^2~44
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0885a30b699a2c96d892b61cc48e8ba68fe87bfc;p=pandora-kernel.git

sky2: implement 64 bit stats

This implements 64 bit statistics support and fixes races when reading
counter values. The PHY counters can only be accessed 16 bits at a time,
so they are subject to carry races.

NB:
  * TX/RX counters are maintained in software because the the hardware packet count
    is only a 32 bit value.

  * Error counters are really only 32 bit.

  * Old 32 bit counter fields in dev->stats still used for some
    software counters

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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