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([2a0d:3344:5521:6b10:2eb7:f61a:75:4534]) by smtp.gmail.com with ESMTPSA id 00721157ae682-810e7288a7csm12312487b3.2.2026.06.30.08.44.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 30 Jun 2026 08:44:09 -0700 (PDT) Message-ID: <94901706-e7f3-4ff7-9b19-9965f593e228@redhat.com> Date: Tue, 30 Jun 2026 17:44:06 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net] net: airoha: fix max receive size configuration To: Lorenzo Bianconi , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Simon Horman Cc: linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, Madhur Agrawal References: <20260625-airoha-fix-rx-max-len-v1-1-45b9b827358d@kernel.org> From: Paolo Abeni In-Reply-To: <20260625-airoha-fix-rx-max-len-v1-1-45b9b827358d@kernel.org> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: x4hD8n0tOQli3r59wIqOMsclevVTl9L2Wkiaqb-JM1k_1782834250 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260630_084414_220878_81430B12 X-CRM114-Status: GOOD ( 11.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 6/25/26 8:49 AM, Lorenzo Bianconi wrote: > Set the GDM maximum receive size to AIROHA_MAX_RX_SIZE unconditionally > during hardware initialization instead of updating it according to the > configured MTU. This avoids dropping incoming frames that exceed the > current MTU but could still be processed by the networking stack, which > is able to fragment the reply on the TX side (e.g. ICMP echo requests). > Move the per-port MTU configuration to the PPE egress path where it > belongs, and set the tx frame size running airoha_ppe_set_xmit_frame_size() > to dynamically track the maximum MTU across running interfaces sharing > the same PPE instance. > Fix the PPE MTU register addressing to pack two port entries per > register word and add WAN_MTU0 configuration for non-LAN GDM devices. > > Fixes: 54d989d58d2a ("net: airoha: Move min/max packet len configuration in airoha_dev_open()") > Tested-by: Madhur Agrawal > Signed-off-by: Lorenzo Bianconi PW bot is on holiday, no automated notifications for a while. Applied, thanks! /P