From: Xander Huff <xander.huff@ni.com>
Date: Tue, 13 Jan 2015 22:15:51 +0000 (-0600)
Subject: net/macb: improved ethtool statistics support
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~134^2~220
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3ff13f1c620e4387e1a9b9bc5d95d67052615037;p=pandora-kernel.git

net/macb: improved ethtool statistics support

Currently `ethtool -S` simply returns "no stats available". It
would be more useful to see what the various ethtool statistics
registers' values are. This change implements get_ethtool_stats,
get_strings, and get_sset_count functions to accomplish this.

Read all GEM statistics registers and sum them into
macb.ethtool_stats. Add the necessary infrastructure to make this
accessible via `ethtool -S`.

Update gem_update_stats to utilize ethtool_stats.

Signed-off-by: Xander Huff <xander.huff@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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