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From: Eric Dumazet <edumazet@google.com>
Date: Tue, 14 Feb 2017 13:56:47 -0800
Message-ID: <CANn89iK6Ecf2NNxKLy83WYK3WnuinGWc9J03UOpFROOWqE=Bog@mail.gmail.com>
Subject: Re: [PATCH v3 net-next 08/14] mlx4: use order-0 pages for RX
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To: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Alexander Duyck <alexander.duyck@gmail.com>, Tariq Toukan <ttoukan.linux@gmail.com>, "David S . Miller" <davem@davemloft.net>, netdev <netdev@vger.kernel.org>, Tariq Toukan <tariqt@mellanox.com>, Martin KaFai Lau <kafai@fb.com>, Saeed Mahameed <saeedm@mellanox.com>, Willem de Bruijn <willemb@google.com>, Brenden Blanco <bblanco@plumgrid.com>, Alexei Starovoitov <ast@kernel.org>, Eric Dumazet <eric.dumazet@gmail.com>, linux-mm <linux-mm@kvack.org>

>
> This obviously does not work for the case I'm talking about
> (transmitting out another device with XDP).
>

XDP_TX does not handle this yet.

When XDP_TX was added, it was very clear that the transmit _had_ to be
done on the same port.

Since all this discussion happened in this thread ( mlx4: use order-0
pages for RX )
I was kind of assuming all the comments were relevant to current code or patch,
not future devs ;)

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