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[79.181.48.215]) by smtp.gmail.com with ESMTPSA id v7sm16794967qtk.89.2019.12.02.07.29.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2019 07:29:43 -0800 (PST) Date: Mon, 2 Dec 2019 10:29:38 -0500 From: "Michael S. Tsirkin" To: Jakub Kicinski Subject: Re: [RFC net-next 00/18] virtio_net XDP offload Message-ID: <20191128024912-mutt-send-email-mst@kernel.org> References: <20191126100744.5083-1-prashantbhole.linux@gmail.com> <20191126123514.3bdf6d6f@cakuba.netronome.com> <20191127152653-mutt-send-email-mst@kernel.org> <20191127154014.2b91ecc2@cakuba.netronome.com> MIME-Version: 1.0 In-Reply-To: <20191127154014.2b91ecc2@cakuba.netronome.com> X-MC-Unique: wp7Ys5CWN3W0gwUHUiUEcg-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Song Liu , Jesper Dangaard Brouer , Daniel Borkmann , qemu-devel@nongnu.org, netdev@vger.kernel.org, Jason Wang , John Fastabend , Alexei Starovoitov , Martin KaFai Lau , Prashant Bhole , kvm@vger.kernel.org, Yonghong Song , Andrii Nakryiko , "David S . Miller" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Wed, Nov 27, 2019 at 03:40:14PM -0800, Jakub Kicinski wrote: > > For better or worse that's how userspace is written. >=20 > HW offload requires modifying the user space, too. The offload is not > transparent. Do you know that? It's true, offload of program itself isn't transparent. Adding a 3rd interface (software/hardware/host) isn't welcome though, IMHO. --=20 MST