From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH RFC 11/11] net/mlx5e: XDP TX xmit more
Date: Wed, 07 Sep 2016 07:41:42 -0700
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References: <1473252152-11379-1-git-send-email-saeedm@mellanox.com>
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Cc: iovisor-dev <iovisor-dev@lists.iovisor.org>,
        netdev@vger.kernel.org, Tariq Toukan <tariqt@mellanox.com>,
        Brenden Blanco <bblanco@plumgrid.com>,
        Alexei Starovoitov <alexei.starovoitov@gmail.com>,
        Tom Herbert <tom@herbertland.com>,
        Martin KaFai Lau <kafai@fb.com>,
        Jesper Dangaard Brouer <brouer@redhat.com>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Eric Dumazet <edumazet@google.com>,
        Jamal Hadi Salim <jhs@mojatatu.com>
To: Saeed Mahameed <saeedm@mellanox.com>
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On Wed, 2016-09-07 at 15:42 +0300, Saeed Mahameed wrote:
> Previously we rang XDP SQ doorbell on every forwarded XDP packet.
> 
> Here we introduce a xmit more like mechanism that will queue up more
> than one packet into SQ (up to RX napi budget) w/o notifying the hardware.
> 
> Once RX napi budget is consumed and we exit napi RX loop, we will
> flush (doorbell) all XDP looped packets in case there are such.

Why is this idea depends on XDP ?

It looks like we could apply it to any driver having one IRQ servicing
one RX and one TX, without XDP being involved.