netdev - Re: [net-next V7 PATCH 01/16] mlx5: basic XDP

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Message-ID: <1522454923.2252.27.camel@mellanox.com>
Date:   Sat, 31 Mar 2018 00:08:46 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "bjorn.topel@...el.com" <bjorn.topel@...el.com>,
        "magnus.karlsson@...el.com" <magnus.karlsson@...el.com>,
        "brouer@...hat.com" <brouer@...hat.com>
CC:     Gal Pressman <galp@...lanox.com>,
        "borkmann@...earbox.net" <borkmann@...earbox.net>,
        Tariq Toukan <tariqt@...lanox.com>,
        "john.fastabend@...il.com" <john.fastabend@...il.com>,
        Eran Ben Elisha <eranbe@...lanox.com>,
        "alexei.starovoitov@...il.com" <alexei.starovoitov@...il.com>,
        Eugenia Emantayev <eugenia@...lanox.com>,
        "jasowang@...hat.com" <jasowang@...hat.com>
Subject: Re: [net-next V7 PATCH 01/16] mlx5: basic XDP_REDIRECT forward
 support

On Thu, 2018-03-29 at 19:01 +0200, Jesper Dangaard Brouer wrote:
> This implements basic XDP redirect support in mlx5 driver.
> 
> Notice that the ndo_xdp_xmit() is NOT implemented, because that API
> need some changes that this patchset is working towards.
> 
> The main purpose of this patch is have different drivers doing
> XDP_REDIRECT to show how different memory models behave in a cross
> driver world.
> 
> Update(pre-RFCv2 Tariq): Need to DMA unmap page before
> xdp_do_redirect,
> as the return API does not exist yet to to keep this mapped.
> 
> Update(pre-RFCv3 Saeed): Don't mix XDP_TX and XDP_REDIRECT flushing,
> introduce xdpsq.db.redirect_flush boolian.
> 
> Signed-off-by: Jesper Dangaard Brouer <brouer@...hat.com>
> Reviewed-by: Tariq Toukan <tariqt@...lanox.com>

Acked-by: Saeed Mahameed <saeedm@...lanox.com>