netdev - Re: [PATCH net-next v11 3/3] net: hisilicon: new hip04 ethernet driver

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Date:	Mon, 12 Jan 2015 09:52:57 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Ding Tianhong <dingtianhong@...wei.com>, robh+dt@...nel.org,
	davem@...emloft.net, grant.likely@...aro.org,
	devicetree@...r.kernel.org, linux@....linux.org.uk,
	sergei.shtylyov@...entembedded.com, eric.dumazet@...il.com,
	netdev@...r.kernel.org, xuwei5@...ilicon.com,
	zhangfei.gao@...aro.org
Subject: Re: [PATCH net-next v11 3/3] net: hisilicon: new hip04 ethernet driver

On Monday 12 January 2015 16:03:52 Ding Tianhong wrote:
> Support Hisilicon hip04 ethernet driver, including 100M / 1000M controller.
> The controller has no tx done interrupt, reclaim xmitted buffer in the poll.

Looks great to me in the latest version. Dave, unless you have further
concerns, please apply.

> v11: Add ethtool support for tx coalecse getting and setting, the xmit_more
> is not supported for this patch, but I think it could work for hip04,
> will support it later after some tests for performance better.
> 
> Here are some performance test results by ping and iperf(add tx_coalesce_frames/users),
> it looks that the performance and latency is more better by tx_coalesce_frames/usecs.
> 
> - Before:
> $ ping 192.168.1.1 ...
> --- 192.168.1.1 ping statistics ---
> 24 packets transmitted, 24 received, 0% packet loss, time 22999ms
> rtt min/avg/max/mdev = 0.180/0.202/0.403/0.043 ms
> 
> $ iperf -c 192.168.1.1 ...
> [ ID] Interval       Transfer     Bandwidth
> [  3]  0.0- 1.0 sec   115 MBytes   945 Mbits/sec

Just to be sure: you were running the two tests simultaneously, right?

	Arnd
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