From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f171.google.com (mail-pf1-f171.google.com [209.85.210.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 55FCF199237 for ; Tue, 8 Apr 2025 02:31:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744079469; cv=none; b=iSfrB8rRbHhH6F0XYe0VurBVpORG9vRw0NJRrGFxG+ldaboTj0l1Jhqn2YnsFJ4I25hzT/eQQtOyhGoV+sFufqTvAisjqZzV/ZHd8F0zC0tcjiedsW/oJOzUuh02+Bne6uDqEn1soCqPEfgh3fFc9RdcS8rkuKGZHt38GWy5hSw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744079469; c=relaxed/simple; bh=ULiawTzzcBI0l8+9GwJzrB/Fi34oOjWKCS0baHQcsvc=; h=Message-ID:Date:MIME-Version:From:Subject:To:Cc:References: In-Reply-To:Content-Type; b=A9s8P1AQz5U8kWb5qosHzwiIc+yHnaolhN6wesNPWT0deCnsJuEazUf4WoLntByG6AjeA2tPbrS9CX3gv0ztgJNqNT3lTIY7eMEpxPuhJJ/blm4AW/TVUh38Os5jFy8V+NgH7aT1HAdkht97rkbqJe4Vbxqobp0G/XivGQtIBFo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=TvcZ2GII; arc=none smtp.client-ip=209.85.210.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="TvcZ2GII" Received: by mail-pf1-f171.google.com with SMTP id d2e1a72fcca58-739525d4e12so4450610b3a.3 for ; Mon, 07 Apr 2025 19:31:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1744079466; x=1744684266; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:content-language:references :cc:to:subject:from:user-agent:mime-version:date:message-id:from:to :cc:subject:date:message-id:reply-to; bh=0XeNG3jGLYlFMTgDDHqxozjF1bFZ6tggy7TIhhUzXfs=; b=TvcZ2GIIWAC44Y/U7vtS8urS6bfDf7V/jrlsdVoRsFz1FEwKUIfGNJtCEKH0jIKU/H mRFVOs1AER5gQS4meBl1UjdrrcmVqoTEidMjVnOx5SWcCUbFttgVEhiFbrw0iw8dE6uM 2MtqPMAlpUNJR4ecR3m+OaZwNfCq8ZoqgIyOzmzVr3BQf6ugfige41EBAaBlwvcGdBQz vCHYwAwpND0QE77Wx8hrOYvmFyKv3hH6XDQCbOBQA3q90vjQhiKljdVxpmYLahuCL5bz 3UehZY0kr7Vy4M1Oym4mt3Fdt4UKs7HStoIaTq/kfslHd6xX2ohZgTSs+MCfZBwsC07D xcgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744079466; x=1744684266; h=content-transfer-encoding:in-reply-to:content-language:references :cc:to:subject:from:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=0XeNG3jGLYlFMTgDDHqxozjF1bFZ6tggy7TIhhUzXfs=; b=X9frYxgBAYYCJJAlXJs3qGEHG1d9v9dMNV0zCMkkkdFBPyfYGGqaTQ+lIwCHq2LQyv JSMX8j5Bm+GWHG1PK8kygb45FpW2dr55sOxE3sBuFVBwaFdmWMOvlpyP/sVHyaSAdo5u It55qE6CYCdGqpcUe69NAumMS8oc3w4c5V4hgbNcWHSNOAYgYKYQLztwvfBwc7A3lFyX iDmxDE7raRlsFDgwyg2imrvsprt7YZXmuFl1RX/PuUePGn5xsqya6c/hPkq1UHWARmKB 4Q8cdUQ4eG0azvwjnDaQHmhY5gDAG8gGfz6fk558P53isAplmneiznZrHQeAy+WgRQ70 xBmA== X-Forwarded-Encrypted: i=1; AJvYcCWMQBRDMpmXrTHmZYbZF18EB80OKpJAxzG39rvF7Xsr/gLYb0fpnzc/4B4O6Szpt/cQ08GZMrE=@vger.kernel.org X-Gm-Message-State: AOJu0Yw2VfJuP6ti323dYRlDyBaXzWjDKRMNthaZBZT7UYbb9T3OoTs7 guddY+p6BnB/XXTxSJfWvMG1oxr1fOCEo/179ACtAK72DkNVgmD3 X-Gm-Gg: ASbGncslD5sUOt6jA8218AMajwB2bB+9udTfq/VgkZ7c5cDVECOaMsaJmBOwU9cdF2q 0IrRn+hmlUMIhi/x2oq+xHxDRLSRdyWVPmuqFzBhumo3MXcbQVO5dpZSkzFuGkNZ1P3r2GkqsQs FczIdtsswRrsb+laHxt47QrhQ8RvNzECgLTWwvxWEzhHLp3mMM8zhMd6tlVodkacXkJ83ainJkf qzng6tUu4ix1ZJ/iRRgWPCQAoF6/UtMCJBOmdBWsdhyCFqlcIjaWrkYzP3WgPZjcrcE58wUl6jR F8j2Hf3n48ycElXL2qe7UuEic3dFBkRS41+VGuCB X-Google-Smtp-Source: AGHT+IEDFD/40gt6zSyn2KjKWUB0p2WUkvFI4RMhTFPmXVmQ5T3Y72T7U/3+q7be8sq1muwPVuc2tQ== X-Received: by 2002:a05:6a00:14d1:b0:736:33fd:f57d with SMTP id d2e1a72fcca58-739e4be3e20mr17476554b3a.17.1744079466513; Mon, 07 Apr 2025 19:31:06 -0700 (PDT) Received: from [10.0.0.122] ([144.24.8.7]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-739d9e9dcc6sm9595837b3a.99.2025.04.07.19.31.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 07 Apr 2025 19:31:06 -0700 (PDT) Message-ID: <72bd4d1d-ea06-4bcc-a77d-a56b5772c282@gmail.com> Date: Tue, 8 Apr 2025 10:31:01 +0800 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta From: Qiyu Yan Subject: Re: [bug?] "hw csum failure" warning triggered on veth interface To: Willem de Bruijn , netdev@vger.kernel.org Cc: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman References: <36566e86-57df-40f3-80ff-7833f930311d@gmail.com> <67f3e84d8304_38ecd3294aa@willemb.c.googlers.com.notmuch> Content-Language: en-US In-Reply-To: <67f3e84d8304_38ecd3294aa@willemb.c.googlers.com.notmuch> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit 在 2025/4/7 22:59, Willem de Bruijn 写道: > Can this be a packet coming in over the physical NIC, forwarded > through veth to the container. Either using ip_forward or some > redirect. > > Do packets arrive encapsulated in a tunnel and what does the > decapsulation? Yes, they are, by looking at the skb address information and compare the address to the route table, those are traffics from/to a CX4 NIC. [Internet] <--> [CX4] <-- DNAT to Container/ SNAT from container --> [podman0] <---> [veth in netns] I did not enable any special encapsulation on the internet/CX4 side.