netdev - Re: [PATCH bpf-next v4 7/8] net/mlx5e: Move the SW XSK code from NAPI poll to a separate function

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Date:   Wed, 14 Aug 2019 07:53:51 -0700
From:   "Jonathan Lemon" <jonathan.lemon@...il.com>
To:     "Magnus Karlsson" <magnus.karlsson@...el.com>
Cc:     bjorn.topel@...el.com, ast@...nel.org, daniel@...earbox.net,
        netdev@...r.kernel.org, brouer@...hat.com, maximmi@...lanox.com,
        bpf@...r.kernel.org, bruce.richardson@...el.com,
        ciara.loftus@...el.com, jakub.kicinski@...ronome.com,
        xiaolong.ye@...el.com, qi.z.zhang@...el.com,
        sridhar.samudrala@...el.com, kevin.laatz@...el.com,
        ilias.apalodimas@...aro.org, kiran.patil@...el.com,
        axboe@...nel.dk, maciej.fijalkowski@...el.com,
        maciejromanfijalkowski@...il.com, intel-wired-lan@...ts.osuosl.org
Subject: Re: [PATCH bpf-next v4 7/8] net/mlx5e: Move the SW XSK code from NAPI
 poll to a separate function



On 14 Aug 2019, at 0:27, Magnus Karlsson wrote:

> From: Maxim Mikityanskiy <maximmi@...lanox.com>
>
> Two XSK tasks are performed during NAPI polling, that are not bound to
> hardware interrupts: TXing packets and polling for frames in the Fill
> Ring. They are special in a way that the hardware doesn't know about
> these tasks, so it doesn't trigger interrupts if there is still some
> work to be done, it's our driver's responsibility to ensure NAPI will be
> rescheduled if needed.
>
> Create a new function to handle these tasks and move the corresponding
> code from mlx5e_napi_poll to the new function to improve modularity and
> prepare for the changes in the following patch.
>
> Signed-off-by: Maxim Mikityanskiy <maximmi@...lanox.com>
> Reviewed-by: Tariq Toukan <tariqt@...lanox.com>
> Reviewed-by: Saeed Mahameed <saeedm@...lanox.com>

Acked-by: Jonathan Lemon <jonathan.lemon@...il.com>