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Thu, 05 Nov 2026 14:21:08 -0800 (PST) Received: from localhost ([2a03:2880:9ff:68::]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1b245c6f0dcsm26931552c88.21.2026.11.05.14.21.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Nov 2026 14:21:08 -0800 (PST) From: Stanislav Fomichev X-Google-Original-From: Stanislav Fomichev To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew+netdev@lunn.ch, edumazet@kernel.org, horms@kernel.org, corbet@lwn.net, skhan@linuxfoundation.org, rdunlap@infradead.org, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, saeedm@nvidia.com, tariqt@nvidia.com, mbloch@nvidia.com, alexanderduyck@fb.com, kernel-team@meta.com, sdf@fomichev.me, dimitri.daskalakis1@gmail.com, almasrymina@google.com, dtatulea@nvidia.com, bobbyeshleman@meta.com, asml.silence@gmail.com, daniel@iogearbox.net, razor@blackwall.org, leitao@debian.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kselftest@vger.kernel.org, leon@kernel.org Subject: [PATCH net-next v3 7/9] net/mlx5e: lift the netmem TX frag size limit Date: Thu, 5 Nov 2026 14:20:56 -0800 Message-ID: <20261105222058.944293-8-sdf@fomichev.me> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261105222058.944293-1-sdf@fomichev.me> References: <20261105222058.944293-1-sdf@fomichev.me> X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit TX data segments have a 32-bit byte count, so devmem TX frags don't need a size limit. Set netmem_tx_max_frag_size to U32_MAX. Signed-off-by: Stanislav Fomichev --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index c3c2c5720c6f..28ba04bd5f4a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -5967,6 +5967,7 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev) netdev->priv_flags |= IFF_UNICAST_FLT; netdev->netmem_tx = NETMEM_TX_DMA; + netdev->netmem_tx_max_frag_size = U32_MAX; netif_set_tso_max_size(netdev, GSO_MAX_SIZE); mlx5e_set_xdp_feature(priv); -- 2.53.0-Meta