netdev - Re: [PATCH net-next 2/4] xdp: propagate extended ack to XDP setup

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Message-ID: <59071207.7010401@iogearbox.net>
Date:   Mon, 01 May 2017 12:46:31 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>,
        netdev@...r.kernel.org
CC:     davem@...emloft.net, johannes@...solutions.net,
        dsa@...ulusnetworks.com, alexei.starovoitov@...il.com,
        bblanco@...il.com, john.fastabend@...il.com, kubakici@...pl,
        oss-drivers@...ronome.com, brouer@...hat.com, jhs@...atatu.com
Subject: Re: [PATCH net-next 2/4] xdp: propagate extended ack to XDP setup

On 05/01/2017 06:46 AM, Jakub Kicinski wrote:
> Drivers usually have a number of restrictions for running XDP
> - most common being buffer sizes, LRO and number of rings.
> Even though some drivers try to be helpful and print error
> messages experience shows that users don't often consult
> kernel logs on netlink errors.  Try to use the new extended
> ack mechanism to carry the message back to user space.
>
> Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>

Acked-by: Daniel Borkmann <daniel@...earbox.net>