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Date:	Wed, 27 Aug 2014 10:36:47 +0800
From:	Chen-Yu Tsai <>
To:	Giuseppe CAVALLARO <>
Cc:	Vince Bridgers <>,
	Ley Foon Tan <>,
	LeyFoon Tan <>,
	netdev <>,
	linux-kernel <>,
	"David S. Miller" <>,
	Vince Bridgers <>
Subject: Re: [PATCH] net: stmmac: add dcrs parameter

On Tue, Aug 26, 2014 at 9:20 PM, Giuseppe CAVALLARO
<> 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.
>>> 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!

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