Merge branch 'cxgb4-move-stats-fetched-from-firmware-to-debugfs'

Rahul Lakkireddy says:

====================
cxgb4: move stats fetched from firmware to debugfs

Some stats are fetched via slow firmware mailbox, which can cause
packet drops under heavy load. So, this series removes these stats
from ethtool -S and expose them via debugfs.

Patch 1 removes stats fetched via firmware from ethtool -S.
Patch 2 exposes stats removed in Patch 1 via debugfs.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>