From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f51.google.com (mail-ej1-f51.google.com [209.85.218.51]) (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 60BE2279DC9 for ; Thu, 25 Sep 2025 09:51:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758793870; cv=none; b=F0jmlaDORvmxX2YZ9qi/+wQnIxj2aODhbwDJMNmFm1k6cO9QKvQoIWOtoUYldQWxPTLmDVUQK/rXbgqbRg5kBNxSqmmYZpL7FKEJTB2Z46awBbfhmaROwBbV0mZXD7qPke+xu+6yeiZkoQ0T98nGjmmGNtIbrJhhEgQyO4hGpnk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758793870; c=relaxed/simple; bh=ZmkFbEfQivCqBMVs45gL6yXtOiKwXDMn9AvVAlKM2NA=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=cAGDmZYuuQm5J35JEQWvpyGAA0gLS+zVkDV0bzzck6RY8J1oWyGLNcm8BgFuGnr4p6MKe73byDIA8JICQrQOTjeapbF/hSEFcXOAGBRWF8PLEIdBeoCoaSrdWuVAQn6XjsSTAxfIO4kM+jB+xlkLQ7TzT8CzkeKxrfE7piPqiRA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com; spf=pass smtp.mailfrom=cloudflare.com; dkim=pass (2048-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b=LU6oAXxM; arc=none smtp.client-ip=209.85.218.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cloudflare.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b="LU6oAXxM" Received: by mail-ej1-f51.google.com with SMTP id a640c23a62f3a-b2e0513433bso129586866b.1 for ; Thu, 25 Sep 2025 02:51:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google09082023; t=1758793867; x=1759398667; darn=vger.kernel.org; h=mime-version:message-id:date:references:in-reply-to:subject:cc:to :from:from:to:cc:subject:date:message-id:reply-to; bh=ZmkFbEfQivCqBMVs45gL6yXtOiKwXDMn9AvVAlKM2NA=; b=LU6oAXxM646knKdDRetHDdvY5uXOb4M4EZgpP8OGwWE5C5MTxEB/SMWkDEpO1K4WXU peE6mvythlUU1n6naOwG9r0orSbpuEn5pM7wOOIdJYTM9IxUNWeS+E7Bx2LVA6CwQ+Uv ZC00HEdLuz90PmjEf0YdItWdhcNXN6xpANEXnChhMndyO1JJiAZEfPUymK/GBIiPvObO 7YaYlZFrC4zBQTEfcv2fuNk1UcsyE3+9GQApNA+/ual1fCWG8fsGOHMNbvGLjVFhY5F+ 5Fg5ToleSGmSB6IyYPql3RFwYnondio1r6BuuHmuPVoTPZJ6P/TX/a8MkD9wRz+KFCZo agaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758793867; x=1759398667; h=mime-version:message-id:date:references:in-reply-to:subject:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ZmkFbEfQivCqBMVs45gL6yXtOiKwXDMn9AvVAlKM2NA=; b=v6Qqj17lLq+dRVVtBtxE00TuiSGIL1Z1YeVbPtG6vNjlCKhs3N8/tI6kHN8x+6nDzN oj5gV0VL4w9cgiynG3vK2XS74AOsaIZVZ4DsEqTWvHGkXZUleJtgPX/AqrJBLd4iqKXl tVEiHgpaJJKu3ItMNLp235ReCwd/5SQaYkImSdgtxhGgGgki2+AuobQvFMhbZgSnozmc C5wfZLT0/HO5+rSEBBrnx6tB+/RHGzGXDVnUi2I8VM9S6DwWL0GbdmvaqCAxsX1jr+l/ B1HPVjhLa/vIqoSIsuqxb/D5cbpwy4862sAMX5z/GvUqvmggZ+LaJ9uKHWx0ZKDE+rsD /ioQ== X-Forwarded-Encrypted: i=1; AJvYcCWaEeXSRXEyoEh8f5lEZ4VwwlphMUgrP9hCkbhp0Y6z3dJ1Y8tr4VidVDYn+Wwtn0Crf/0d0QYRzYOMIyjVvxo=@vger.kernel.org X-Gm-Message-State: AOJu0Yzx7VgTesCQ/eykzepiUic1O2Ux7Q0gG65ZHyVQrn60sdlAcNwG UeUPtlnp0AGttQ3OXyhfZWyszryraSC47KkjWRKhFzSoXuhmoPIMr44wzhyT+q89Fss= X-Gm-Gg: ASbGncsM4qlbvZVwyXuVi24hcxTnLe4RkjU1JM5Ere6TZDGyWFy0Vlrkj29qmP7XH7X KE5nwOgcl+nrX3y6yidj3yOExHh4+A5dEKG7FOYzfeNsfHk4RWAKY+gTl34CM9jz2IRSpFuDvpM IVnHlZKGEI+tJEylsJ5heC+x954lFCEa5zUQDV2DYeeXkSuk8873ibnys8I8mZWWQeMrVTogW5n o1o8JJ9vU9+IXsZs9Z+V/TyS28if5XswsBM/9aagJ8hiz2d7UhYZOyVVYs/zleRw5QotVKiIi1X 3el6dJRikQ3yaFqPGi8cdlgYi4x2iO3+WwL0y0IocdJTb74pSvEIPddvIF2Y4hfGlzEWUpsPXaS txH01R4hvzuAWdMQ= X-Google-Smtp-Source: AGHT+IGEVGUv7B9GwkQ2/AJ6K1sBRZgNTUuhBCswgHVtL42XXaKHIxqK5bg7kju7asdvwIL8eCRs8w== X-Received: by 2002:a17:907:1c8d:b0:b33:671:8a58 with SMTP id a640c23a62f3a-b34bd440633mr294373466b.37.1758793866605; Thu, 25 Sep 2025 02:51:06 -0700 (PDT) Received: from cloudflare.com ([2a09:bac6:d677:295f::41f:5e]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b353f8686e6sm131994066b.38.2025.09.25.02.51.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Sep 2025 02:51:05 -0700 (PDT) From: Jakub Sitnicki To: Lorenzo Bianconi Cc: Donald Hunter , Jakub Kicinski , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Andrew Lunn , Tony Nguyen , Przemek Kitszel , Alexander Lobakin , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , KP Singh , Hao Luo , Jiri Olsa , Shuah Khan , Maciej Fijalkowski , netdev@vger.kernel.org, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH RFC bpf-next v2 0/5] Add the the capability to load HW RX checsum in eBPF programs In-Reply-To: <20250925-bpf-xdp-meta-rxcksum-v2-0-6b3fe987ce91@kernel.org> (Lorenzo Bianconi's message of "Thu, 25 Sep 2025 11:30:32 +0200") References: <20250925-bpf-xdp-meta-rxcksum-v2-0-6b3fe987ce91@kernel.org> Date: Thu, 25 Sep 2025 11:51:04 +0200 Message-ID: <87bjmy508n.fsf@cloudflare.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Thu, Sep 25, 2025 at 11:30 AM +02, Lorenzo Bianconi wrote: > Introduce bpf_xdp_metadata_rx_checksum() kfunc in order to load the HW > RX cheksum results in the eBPF program binded to the NIC. > Implement xmo_rx_checksum callback for veth and ice drivers. What are going to do with HW RX checksum once XDP prog can access it?