From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Borkmann Subject: Re: [PATCH net-next 2/4] xdp: propagate extended ack to XDP setup Date: Mon, 01 May 2017 12:46:31 +0200 Message-ID: <59071207.7010401@iogearbox.net> References: <20170501044648.13022-1-jakub.kicinski@netronome.com> <20170501044648.13022-3-jakub.kicinski@netronome.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: davem@davemloft.net, johannes@sipsolutions.net, dsa@cumulusnetworks.com, alexei.starovoitov@gmail.com, bblanco@gmail.com, john.fastabend@gmail.com, kubakici@wp.pl, oss-drivers@netronome.com, brouer@redhat.com, jhs@mojatatu.com To: Jakub Kicinski , netdev@vger.kernel.org Return-path: Received: from www62.your-server.de ([213.133.104.62]:41136 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S378806AbdEAKqf (ORCPT ); Mon, 1 May 2017 06:46:35 -0400 In-Reply-To: <20170501044648.13022-3-jakub.kicinski@netronome.com> Sender: netdev-owner@vger.kernel.org List-ID: On 05/01/2017 06:46 AM, Jakub Kicinski wrote: > Drivers usually have a number of restrictions for running XDP > - most common being buffer sizes, LRO and number of rings. > Even though some drivers try to be helpful and print error > messages experience shows that users don't often consult > kernel logs on netlink errors. Try to use the new extended > ack mechanism to carry the message back to user space. > > Signed-off-by: Jakub Kicinski Acked-by: Daniel Borkmann