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Date:	Thu, 30 Oct 2014 11:22:19 -0700
From:	Eric Dumazet <>
To:	Or Gerlitz <>,
	Tom Herbert <>
Cc:	"David S. Miller" <>,,
	Matan Barak <>,
	Amir Vadai <>,
	Saeed Mahameed <>,
	Shani Michaeli <>,
	Jerry Chu <>
Subject: Re: [PATCH net-next 8/8] net/mlx4_en: Extend checksum offloading by

On Thu, 2014-10-30 at 18:06 +0200, Or Gerlitz wrote:
> From: Shani Michaeli <>
> When processing received traffic, pass CHECKSUM_COMPLETE status to the
> stack, with calculated checksum for non TCP/UDP packets (such
> as GRE or ICMP).
> Although the stack expects checksum which doesn't include the pseudo
> header, the HW adds it. To address that, we are subtracting the pseudo
> header checksum from the checksum value provided by the HW.
> In the IPv6 case, we also compute/add the IP header checksum which
> is not added by the HW for such packets.
> Cc: Jerry Chu <>
> Signed-off-by: Shani Michaeli <>
> Signed-off-by: Or Gerlitz <>
> ---

Awesome !

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