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[195.231.47.232]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48de0bc6b82sm4628216f8f.51.2026.10.13.04.23.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Oct 2026 04:23:38 -0700 (PDT) Message-ID: <6bd52b02-e701-4589-824b-87c1475bc4cf@redhat.com> Date: Tue, 13 Oct 2026 13:23:36 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net] net/mlx5: Attach late uplink netdev to loaded representors To: Tariq Toukan , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , netdev@vger.kernel.org Cc: Cosmin Ratiu , Dragos Tatulea , Gal Pressman , Jason Gunthorpe , Jianbo Liu , Jiri Pirko , Leon Romanovsky , open list , linux-rdma@vger.kernel.org, Mark Bloch , Saeed Mahameed , Shay Drori References: <20261006110219.257714-1-tariqt@nvidia.com> Content-Language: en-US From: Paolo Abeni In-Reply-To: <20261006110219.257714-1-tariqt@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/6/26 13:02, Tariq Toukan wrote: > From: Jianbo Liu > > mlx5e_vport_uplink_rep_load() returns success when the uplink netdev is > missing, so the ETH rep is marked loaded with a NULL netdev, the IB rep > copies that NULL association, and nothing repairs it later. Unbind > mlx5_core.eth. in legacy mode, enter switchdev, bind it again, and > rdma link show still reports no netdev on the uplink port. The netdev > also keeps the NIC profile instead of the uplink rep profile. > > Add an attach_uplink_netdev rep op, run from the existing reload-reps > work once mlx5_core_uplink_netdev_set() reports a netdev. ETH re-runs > the uplink load, switching profile and setting rpriv->netdev; IB redoes > ib_device_set_netdev(). Deferring to the work keeps the devlink lock > out of probe context. > > Fixes: 6b4be64fd9fe ("net/mlx5e: Harden uplink netdev access against device unbind") > Signed-off-by: Jianbo Liu > Reviewed-by: Shay Drori > Signed-off-by: Tariq Toukan The AI feedback looks relevant, also this looks quite too big/dangerous for net at this point of the cycle. /P