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Groups > linux.kernel > #1707352

Re: [PATCH 4/4] net-next: dsa: fix flow dissection

From Andrew Lunn <andrew@lunn.ch>
Newsgroups linux.kernel
Subject Re: [PATCH 4/4] net-next: dsa: fix flow dissection
Date 2017-08-09 16:00 +0200
Message-ID <uczGG-85m-7@gated-at.bofh.it> (permalink)
References <ucyAV-76E-7@gated-at.bofh.it> <ucyAW-76E-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Aug 09, 2017 at 02:41:19PM +0200, John Crispin wrote:
> RPS and probably other kernel features are currently broken on some if not
> all DSA devices. The root cause of this is that skb_hash will call the
> flow_dissector. At this point the skb still contains the magic switch
> header and the skb->protocol field is not set up to the correct 802.3
> value yet. By the time the tag specific code is called, removing the header
> and properly setting the protocol an invalid hash is already set. In the
> case of the mt7530 this will result in all flows always having the same
> hash.
> 
> Signed-off-by: Muciri Gatimu <muciri@openmesh.com>
> Signed-off-by: Shashidhar Lakkavalli <shashidhar.lakkavalli@openmesh.com>
> Signed-off-by: John Crispin <john@phrozen.org>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

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[PATCH 4/4] net-next: dsa: fix flow dissection John Crispin <john@phrozen.org> - 2017-08-09 14:50 +0200
  Re: [PATCH 4/4] net-next: dsa: fix flow dissection Andrew Lunn <andrew@lunn.ch> - 2017-08-09 16:00 +0200

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