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([2620:10d:c090:500::1:79e]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-12ab97efb42sm12090342c88.7.2026.03.30.11.15.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 30 Mar 2026 11:16:00 -0700 (PDT) Message-ID: Date: Mon, 30 Mar 2026 11:15:59 -0700 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-next v3 4/6] net: bcmgenet: add XDP_TX support To: Nicolai Buchwitz , netdev@vger.kernel.org Cc: Doug Berger , Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , linux-kernel@vger.kernel.org, bpf@vger.kernel.org References: <20260319115402.353509-1-nb@tipi-net.de> <20260319115402.353509-5-nb@tipi-net.de> Content-Language: en-US From: Mohsin Bashir In-Reply-To: <20260319115402.353509-5-nb@tipi-net.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit > +static bool > +bcmgenet_xdp_xmit_frame(struct bcmgenet_priv *priv, > + struct xdp_frame *xdpf, bool dma_map) > +{ > + struct bcmgenet_tx_ring *ring = &priv->tx_rings[DESC_INDEX]; > + struct device *kdev = &priv->pdev->dev; > + struct enet_cb *tx_cb_ptr; > + dma_addr_t mapping; > + unsigned int dma_len; > + u32 len_stat; > + > + spin_lock(&ring->lock); > + So we acquire lock on per-packet basis on the XDP_TX path? Do you think we can batch this?