From: Hyong-Youb Kim <hykim@myri.com>
Date: Mon, 19 Aug 2013 09:02:19 +0000 (-0700)
Subject: myri10ge: Add support for ndo_busy_poll
X-Git-Tag: v3.12-rc1~132^2~251
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0dde80268ee0a5a1511935bdb9c547191d616aa9;p=pandora-kernel.git

myri10ge: Add support for ndo_busy_poll

Add the ndo_busy_poll handler. Use skb_mark_napi_id to mark receive
packets with the napi id. For each slice, use per-slice spinlock and
state variable to ensure that only one handler processes receive
pacekts.

Locking, statistics counters, and the ndo_busy_poll handler follow
those in the ixgbe driver. So, credit goes to that driver's authors.

Signed-off-by: Hyong-Youb Kim <hykim@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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