netdev - Re: [PATCH net-next v3] ipv4: Support multipath hashing on inner IP pkts for GRE tunnel

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Message-Id: <20190614.194308.428822513461761521.davem@davemloft.net>
Date:   Fri, 14 Jun 2019 19:43:08 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     ssuryaextr@...il.com
Cc:     netdev@...r.kernel.org, nikolay@...ulusnetworks.com
Subject: Re: [PATCH net-next v3] ipv4: Support multipath hashing on inner
 IP pkts for GRE tunnel

From: Stephen Suryaputra <ssuryaextr@...il.com>
Date: Thu, 13 Jun 2019 14:38:58 -0400

> Multipath hash policy value of 0 isn't distributing since the outer IP
> dest and src aren't varied eventhough the inner ones are. Since the flow
> is on the inner ones in the case of tunneled traffic, hashing on them is
> desired.
> 
> This is done mainly for IP over GRE, hence only tested for that. But
> anything else supported by flow dissection should work.
> 
> v2: Use skb_flow_dissect_flow_keys() directly so that other tunneling
>     can be supported through flow dissection (per Nikolay Aleksandrov).
> v3: Remove accidental inclusion of ports in the hash keys and clarify
>     the documentation (Nikolay Alexandrov).
> Signed-off-by: Stephen Suryaputra <ssuryaextr@...il.com>

Applied.