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Date:	Sat, 27 Sep 2014 09:15:24 +0000
From:	"" <>
To:	David Miller <>
CC:	"" <>,
	"" <>,
	"" <>,
	"" <>
Subject: RE: [PATCH] net: fec: remove memory copy for rx path

From: David Miller <> Sent: Saturday, September 27, 2014 5:07 AM
>To: Duan Fugang-B38611
>Cc: Li Frank-B20596;;;
>Subject: Re: [PATCH] net: fec: remove memory copy for rx path
>From: Fugang Duan <>
>Date: Wed, 24 Sep 2014 14:05:30 +0800
>> Re-allocate skb instead of memory copy skb data in rx path to improve
>> enet rx performance.
>> Signed-off-by: Fugang Duan <>
>> Signed-off-by: Frank Li <>
>For small packet sizes, copying is almost certainly faster and it avoids
>mismatched skb->truesize vs. skb->len which hurts TCP performance.
>We call this rx_copybreak, and there are many drivers you can look at to
>see how this works.

Great suggestion. I will change it for next version.

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