From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Mintz, Yuval" Subject: RE: [PATCH net] virtio_net: reject XDP programs using header adjustment Date: Mon, 19 Dec 2016 15:23:52 +0000 Message-ID: References: <20161219150500.2600-1-jakub.kicinski@netronome.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Cc: "john.fastabend@gmail.com" , "kafai@fb.com" , "daniel@iogearbox.net" , "alexei.starovoitov@gmail.com" , "mst@redhat.com" To: Jakub Kicinski , "netdev@vger.kernel.org" Return-path: Received: from mail-dm3nam03on0055.outbound.protection.outlook.com ([104.47.41.55]:30503 "EHLO NAM03-DM3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932170AbcLSPXy (ORCPT ); Mon, 19 Dec 2016 10:23:54 -0500 In-Reply-To: <20161219150500.2600-1-jakub.kicinski@netronome.com> Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: > commit 17bedab27231 ("bpf: xdp: Allow head adjustment in XDP prog") > added a new XDP helper to prepend and remove data from a frame. > Make virtio_net reject programs making use of this helper until proper > support is added. >=20 > Signed-off-by: Jakub Kicinski Is that how it goes until we'll add the proper infrastructure? Am I expected to provide the same for qede? I was under the impression that so long as this is being [early] developed and there's no way to communicate what is and isn't supported by a given implementation, it would simply be the user's responsibility to make sure what he's trying is supported.