From: Stephen Hemminger <stephen@networkplumber.org>
To: Rongwei Liu <rongweil@nvidia.com>
Cc: <dev@dpdk.org>, <matan@nvidia.com>, <viacheslavo@nvidia.com>,
<orika@nvidia.com>, <suanmingm@nvidia.com>, <thomas@monjalon.net>,
<stable@dpdk.org>, Dariusz Sosnowski <dsosnowski@nvidia.com>,
Bing Zhao <bingz@nvidia.com>
Subject: Re: [PATCH v1] net/mlx5: fix probe optimization race condition
Date: Wed, 27 Aug 2025 21:40:44 -0700 [thread overview]
Message-ID: <20250827214044.16f9baaa@hermes.local> (raw)
In-Reply-To: <20250828032134.167999-1-rongweil@nvidia.com>
On Thu, 28 Aug 2025 06:21:34 +0300
Rongwei Liu <rongweil@nvidia.com> wrote:
> With dedicated RDMA link monitor, there are two threads
> which can update the IB device port information.
>
> Add a new flag to avoid the race condition. Update should
> go through RDMA link monitor once ready.
>
> Fixes: 51fb5c40c826 ("net/mlx5: optimize device probing")
> Cc: rongweil@nvidia.com
> Cc: stable@dpdk.org
> Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> ---
If variable is modified (with out locking) on two threads it
needs to atomic or volatile.
next prev parent reply other threads:[~2025-08-28 4:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-28 3:21 Rongwei Liu
2025-08-28 4:40 ` Stephen Hemminger [this message]
2025-08-28 4:49 ` rongwei liu
2025-08-28 13:37 ` Thomas Monjalon
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