linux-kernel - Re: [net-next v1 03/16] queue

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Message-ID: <20231213171538.04847459@kernel.org>
Date:   Wed, 13 Dec 2023 17:15:38 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Mina Almasry <almasrymina@...gle.com>
Cc:     Shailend Chand <shailend@...gle.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-kselftest@...r.kernel.org,
        bpf@...r.kernel.org, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Jeroen de Borst <jeroendb@...gle.com>,
        Praveen Kaligineedi <pkaligineedi@...gle.com>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        David Ahern <dsahern@...nel.org>,
        Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Shuah Khan <shuah@...nel.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        "Christian König" <christian.koenig@....com>,
        Yunsheng Lin <linyunsheng@...wei.com>,
        Harshitha Ramamurthy <hramamurthy@...gle.com>,
        Shakeel Butt <shakeelb@...gle.com>
Subject: Re: [net-next v1 03/16] queue_api: define queue api

On Thu,  7 Dec 2023 16:52:34 -0800 Mina Almasry wrote:
> This API enables the net stack to reset the queues used for devmem.

Nice, thanks for moving this forward. FWIW when I started hacking on it
the API looked more like:
https://github.com/kuba-moo/linux/commit/7af8abfa4fdff248e21fc76aecc334004a0f322f
which passes the config objects to the queue callbacks as an argument.
Storing in struct netdev_rx_queue makes implementing prepare / swap
harder. But that's just FYI, we can refactor later. The queue config
rabbit hole is pretty deep.