From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 31A7D4E3776; Tue, 21 Jul 2026 15:21:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784647287; cv=none; b=dl4KDArV95cmyZ2HBeFVzkLunQnoF2vE5IkcrTdRC5bagqTugPiC0Fh7G5LVsu59jvwCN5N2X4dll7QsazCfEkHb8iNKO7VXbNHFe43afy/EW/iVk59h5wwnCFerNTUo/MHL9BIytKpRVJSEJJT09sb9aNlUJAre8gXk7czH3b0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784647287; c=relaxed/simple; bh=0Rmf+N0EMTdVuCGky14drmy18+nU8XenOdS3gncIz9k=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=tYTgAfgHJXZfEl1OC+hOJOammW9CFhtV5kloxdKpfWmr6KJCHYHxZa/F0w0kumuc9nIwZaVqs7sF8M7Nn3f9BeJFalgHdQKoWyFXIoWKWzFQ62C1IZb24nOLZZ8F3+w3ud1hOQAA4LJRG3yqaWW4kkZtb744AW9cJgX9tfLRZWE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bxDS6E/t; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bxDS6E/t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A72C21F00A3A; Tue, 21 Jul 2026 15:21:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784647285; bh=0Rmf+N0EMTdVuCGky14drmy18+nU8XenOdS3gncIz9k=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=bxDS6E/thFmxdUIU38K1fepDyvUlwG5v6zo1cHmc84NV4hPg9pG3ccERxRa2mfTbA vvsX3tbh3TkNuXol0mkQvMH/48ozCWlQX0YRrdhvMWVNNibQVv0caGvLjnCBRTaeia YKyQuWmmQbwuGi7hwaOZu8KVmzu3jnU44HYEjOvCsV+wNeX8mWnuuVjFkLPObT0Dzm zFVsbKD+iv0DDMf4xP6f8bdFBxqSIbt81d0i/TGMlPoYviUenDEW96/p+aBSr1gaq8 84fBp8eb7+nSREO6ipgIpjVGZX17dOe4eLBd62mJEzqGuEDZCCjk/Y8Am/N7Unh8ka +ObJa4D4fLZyg== Date: Tue, 21 Jul 2026 08:21:24 -0700 From: Jakub Kicinski To: Lorenzo Bianconi Cc: Donald Hunter , "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 , Jonathan Corbet , Shuah Khan , Kumar Kartikeya Dwivedi , Emil Tsalapatis , Vladimir Vdovin , Jakub Sitnicki , netdev@vger.kernel.org, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org, Aleksandr Loktionov Subject: Re: [PATCH bpf-next v5 1/8] netlink: specs: add XDP RX checksum capability to XDP metadata specs Message-ID: <20260721082124.0f44f8e9@kernel.org> In-Reply-To: <20260715-bpf-xdp-meta-rxcksum-v5-1-623d5c0d0ab7@kernel.org> References: <20260715-bpf-xdp-meta-rxcksum-v5-0-623d5c0d0ab7@kernel.org> <20260715-bpf-xdp-meta-rxcksum-v5-1-623d5c0d0ab7@kernel.org> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 15 Jul 2026 23:39:41 +0200 Lorenzo Bianconi wrote: > + * In case of success, ``cksum`` contains the checksum value calculated by the > + * NIC. ``cksum`` is valid only if ``XDP_CHECKSUM_COMPLETE`` is set in > + * ``ip_summed``. ``cksum_level`` contains the checksum level reported by the > + * hw. ``cksum_level`` can be considered valid only if > + * ``XDP_CHECKSUM_UNNECESSARY`` is set in ``ip_summed``. nit: cksum -> csum like the rest of the networking stack