netdev - Re: [RFC 1/2] net-next: fix DSA flow

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Message-ID: <20170620140140.GB12383@lunn.ch>
Date:   Tue, 20 Jun 2017 16:01:40 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     John Crispin <john@...ozen.org>
Cc:     Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sean Wang <sean.wang@...iatek.com>, netdev@...r.kernel.org
Subject: Re: [RFC 1/2] net-next: fix DSA flow_disection

On Tue, Jun 20, 2017 at 10:06:54AM +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 that skb_hash will call the
> flow_disector.

Hi John

What is the call path when the flow_disector is called? I'm wondering
if we can defer this, and call it later, after the tag code has
removed the header.

	Andrew