netdev - Re: [PATCH net-next] vrf: add CRC32c offload to device features

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Message-ID: <829661ca-fe17-8a96-3cf2-146f24943ac0@cumulusnetworks.com>
Date:   Fri, 25 May 2018 14:06:03 -0600
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Davide Caratti <dcaratti@...hat.com>,
        Vlad Yasevich <vyasevich@...il.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
Cc:     linux-sctp@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] vrf: add CRC32c offload to device features

On 5/24/18 9:49 AM, Davide Caratti wrote:
> SCTP sockets originated in a VRF can improve their performance if CRC32c
> computation is delegated to underlying devices: update device features,
> setting NETIF_F_SCTP_CRC. Iterating the following command in the topology
> proposed with [1],
> 
>  # ip vrf exec vrf-h2 netperf -H 192.0.2.1 -t SCTP_STREAM -- -m 10K
> 
> the measured throughput in Mbit/s improved from 2395 ± 1% to 2720 ± 1%.
> 
> [1] https://www.spinics.net/lists/netdev/msg486007.html
> 
> Signed-off-by: Davide Caratti <dcaratti@...hat.com>
> ---
>  drivers/net/vrf.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Acked-by: David Ahern <dsa@...ulusnetworks.com>