netdev - RE: [PATCH v6 net-nex 5/5] net: mlx5: add xdp tx return bulking support

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Message-ID: <5faee8607f18f_d583208a5@john-XPS-13-9370.notmuch>
Date:   Fri, 13 Nov 2020 12:11:12 -0800
From:   John Fastabend <john.fastabend@...il.com>
To:     Lorenzo Bianconi <lorenzo@...nel.org>, netdev@...r.kernel.org
Cc:     bpf@...r.kernel.org, lorenzo.bianconi@...hat.com,
        davem@...emloft.net, kuba@...nel.org, brouer@...hat.com,
        ilias.apalodimas@...aro.org, john.fastabend@...il.com
Subject: RE: [PATCH v6 net-nex 5/5] net: mlx5: add xdp tx return bulking
 support

Lorenzo Bianconi wrote:
> Convert mlx5 driver to xdp_return_frame_bulk APIs.
> 
> XDP_REDIRECT (upstream codepath): 8.9Mpps
> XDP_REDIRECT (upstream codepath + bulking APIs): 10.2Mpps

Hard to argue an extra 1+mpps.

> 
> Tested-by: Jesper Dangaard Brouer <brouer@...hat.com>
> Co-developed-by: Jesper Dangaard Brouer <brouer@...hat.com>
> Signed-off-by: Jesper Dangaard Brouer <brouer@...hat.com>
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> ---
>  .../net/ethernet/mellanox/mlx5/core/en/xdp.c  | 22 +++++++++++++++----
>  1 file changed, 18 insertions(+), 4 deletions(-)

LGTM.

Acked-by: John Fastabend <john.fastabend@...il.com>