From: Beniamino Galvani <b.galvani@gmail.com>
Date: Wed, 21 Jan 2015 18:07:27 +0000 (+0100)
Subject: net: stmmac: add BQL support
X-Git-Tag: fixes-v4.0-rc1~150^2~139
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3897957494d979ad592a00a6ced4b6c9410e9452;p=pandora-kernel.git

net: stmmac: add BQL support

Add support for Byte Queue Limits to the STMicro MAC driver.

Tested on a Amlogic S802 quad Cortex-A9 board, where the use of BQL
decreases the latency of a high priority ping from ~12ms to ~1ms when
the 100Mbit link is saturated by 20 TCP streams.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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