From mboxrd@z Thu Jan 1 00:00:00 1970 From: roopa Subject: Re: [PATCH net-next v2 1/5] net: don't reforward packets already forwarded by offload device Date: Thu, 16 Jul 2015 20:32:14 -0700 Message-ID: <55A8773E.2020607@cumulusnetworks.com> References: <1437033897-8050-1-git-send-email-sfeldma@gmail.com> <1437033897-8050-2-git-send-email-sfeldma@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, jiri@resnulli.us, simon.horman@netronome.com To: sfeldma@gmail.com Return-path: Received: from mail-pa0-f49.google.com ([209.85.220.49]:35499 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753392AbbGQDcR (ORCPT ); Thu, 16 Jul 2015 23:32:17 -0400 Received: by pactm7 with SMTP id tm7so53612016pac.2 for ; Thu, 16 Jul 2015 20:32:16 -0700 (PDT) In-Reply-To: <1437033897-8050-2-git-send-email-sfeldma@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: On 7/16/15, 1:04 AM, sfeldma@gmail.com wrote: > From: Scott Feldman > > Just before queuing skb for xmit on port, check if skb has been marked by > switchdev port driver as already fordwarded by device. If so, drop skb. A > non-zero skb->offload_fwd_mark field is set by the switchdev port > driver/device on ingress to indicate the skb has already been forwarded by > the device to egress ports with matching dev->skb_mark. The switchdev port > driver would assign a non-zero dev->skb_mark for each device port netdev typo: dev->offload_fwd_mark > during registration, for example. > > Signed-off-by: Scott Feldman > Acked-by: Roopa Prabhu Thanks scott!