netdev - Re: [PATCH] net: stmmac: add dcrs parameter

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Message-ID: <CAGb2v64ZQ37AhweoPvEPeYgYpA9yZdWXMkj4jsmCcNshngZTsg@mail.gmail.com>
Date:	Wed, 27 Aug 2014 10:36:47 +0800
From:	Chen-Yu Tsai <wens@...e.org>
To:	Giuseppe CAVALLARO <peppe.cavallaro@...com>
Cc:	Vince Bridgers <vbridgers2013@...il.com>,
	Ley Foon Tan <lftan@...era.com>,
	LeyFoon Tan <lftan.linux@...il.com>,
	netdev <netdev@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Vince Bridgers <vbridger@...era.com>
Subject: Re: [PATCH] net: stmmac: add dcrs parameter

On Tue, Aug 26, 2014 at 9:20 PM, Giuseppe CAVALLARO
<peppe.cavallaro@...com> wrote:
> On 8/26/2014 2:35 PM, Vince Bridgers wrote:
>>
>> Hi Peppe,
>>
>>>>
>>>> In the Synopsys EMAC case, carrier sense is used to stop transmitting
>>>> if no carrier is sensed during a transmission. This is only useful if
>>>> the media in use is true half duplex media (like obsolete 10Base2 or
>>>> 10Base5). If no one in using true half duplex media, then is it
>>>> possible to set this disable by default? If we're not sure, then
>>>> having an option feels like the right thing to do.
>>>
>>>
>>>
>>> Indeed this is what I had done in the patch.
>>>
>>>
>>> http://git.stlinux.com/?p=stm/linux-sh4-2.6.32.y.git;a=commit;h=b0b863bf65c36dc593f6b7b4b418394fd880dae2
>>>
>>> Also in case of carrier sense the frame will be dropped in any case
>>> later.
>>>
>>> Let me know if you Acked this patch so I will rebase it on
>>> net.git and I send it soon
>>>
>>> peppe
>>>
>>
>> Yes, this looks good to me. I don't expect anyone is using 10Base2 or
>> 10Base5 anymore, so it's ok to disable DCRS by default.
>>
>> ack
>>
>> All the best,
>
>
> thx so much, I will send this patch (with your Acked-by) and ported on
> net.git soon.
>
> Chen-Yu, Ley Foon, pls let me know if it is ok for you as well

Looks good. Thanks!

Cheers
ChenYu
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