From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D2E403AC0F; Wed, 11 Oct 2023 17:00:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="aXWfAU//" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B9553C433C9; Wed, 11 Oct 2023 17:00:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1697043659; bh=4s0g9DhKUIbShu1m85ATDlurOXttotYpRt/DssOsaVE=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=aXWfAU//GdvE74uLj/NKNhvRtOS32PkKp/nzkTZQ5h1Z4U+zgafa+b5T9gsDJ11J/ FPRCtDaQRHX8siUPSmDyLk3jNLhMQdwFSWLN3clzYAF5tdCGNE/qFStoX3m8yOlpLA y9k0c5lBIbfWkhSZNecCJKRKbK5we3r1aJrk7TeqpOB/4m1Jvkn6AsZLyq7/C6d7Y0 y6f/mnKb9w+r6tzH5dsb53GNOwS2+2NLeBFC8pQwZ7AOe9cN7FMv54zFYVLt/nxF8q fbs7QVyD9bFaIJyd/EmG0vs7PqbnAbFlzzBSGE0MDToGaPz3gZ6hYmEdyBDA/FRZKp Kp8kOmF5dVQiA== Date: Wed, 11 Oct 2023 10:00:57 -0700 From: Jakub Kicinski To: Xuan Zhuo Cc: virtualization@lists.linux-foundation.org, "David S. Miller" , Eric Dumazet , Paolo Abeni , "Michael S. Tsirkin" , Jason Wang , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , netdev@vger.kernel.org, bpf@vger.kernel.org Subject: Re: [PATCH vhost 00/22] virtio-net: support AF_XDP zero copy Message-ID: <20231011100057.535f3834@kernel.org> In-Reply-To: <20231011092728.105904-1-xuanzhuo@linux.alibaba.com> References: <20231011092728.105904-1-xuanzhuo@linux.alibaba.com> Precedence: bulk X-Mailing-List: netdev@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, 11 Oct 2023 17:27:06 +0800 Xuan Zhuo wrote: > ## AF_XDP > > XDP socket(AF_XDP) is an excellent bypass kernel network framework. The zero > copy feature of xsk (XDP socket) needs to be supported by the driver. The > performance of zero copy is very good. mlx5 and intel ixgbe already support > this feature, This patch set allows virtio-net to support xsk's zerocopy xmit > feature. You're moving the driver and adding a major feature. This really needs to go via net or bpf. If you have dependencies in other trees please wait for after the merge window.