From: Eric Dumazet <edumazet@google.com>
To: Yannick Vignon <yannick.vignon@oss.nxp.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Antoine Tenart <atenart@kernel.org>, Wei Wang <weiwan@google.com>,
Taehee Yoo <ap420073@gmail.com>,
Alexander Lobakin <alobakin@pm.me>,
netdev <netdev@vger.kernel.org>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Jose Abreu <joabreu@synopsys.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Joakim Zhang <qiangqing.zhang@nxp.com>,
sebastien.laveze@oss.nxp.com,
Yannick Vignon <yannick.vignon@nxp.com>
Subject: Re: [RFC PATCH net-next v1 1/2] net: add name field to napi struct
Date: Thu, 6 May 2021 19:35:47 +0200 [thread overview]
Message-ID: <CANn89i+kZnGHmiVoQSj4Xww7uNwhaj8+XV2C+4a_6k+T4UcY7g@mail.gmail.com> (raw)
In-Reply-To: <20210506172021.7327-2-yannick.vignon@oss.nxp.com>
On Thu, May 6, 2021 at 7:20 PM Yannick Vignon
<yannick.vignon@oss.nxp.com> wrote:
>
> From: Yannick Vignon <yannick.vignon@nxp.com>
>
> An interesting possibility offered by the new thread NAPI code is to
> fine-tune the affinities and priorities of different NAPI instances. In a
> real-time networking context, this makes it possible to ensure packets
> received in a high-priority queue are always processed, and with low
> latency.
>
> However, the way the NAPI threads are named does not really expose which
> one is responsible for a given queue. Assigning a more explicit name to
> NAPI instances can make that determination much easier.
>
> Signed-off-by: Yannick Vignon <yannick.vignon@nxp.com>
> -
Having to change drivers seems a lot of work
How about exposing thread id (and napi_id eventually) in
/sys/class/net/eth0/queues/*/kthread_pid ?
next prev parent reply other threads:[~2021-05-06 17:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-06 17:20 [RFC PATCH net-next v1 0/2] Threaded NAPI configurability Yannick Vignon
2021-05-06 17:20 ` [RFC PATCH net-next v1 1/2] net: add name field to napi struct Yannick Vignon
2021-05-06 17:35 ` Eric Dumazet [this message]
2021-05-11 16:44 ` Yannick Vignon
2021-05-06 17:20 ` [RFC PATCH net-next v1 2/2] net: stmmac: use specific name for each NAPI instance Yannick Vignon
2021-05-06 22:18 ` [RFC PATCH net-next v1 0/2] Threaded NAPI configurability Jakub Kicinski
2021-05-11 16:46 ` Yannick Vignon
2021-05-12 1:07 ` Jakub Kicinski
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