{"id":818846,"url":"http://patchwork.ozlabs.org/api/patches/818846/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/patch/1506464764-12699-3-git-send-email-andrew@lunn.ch/","project":{"id":7,"url":"http://patchwork.ozlabs.org/api/projects/7/?format=json","name":"Linux network development","link_name":"netdev","list_id":"netdev.vger.kernel.org","list_email":"netdev@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<1506464764-12699-3-git-send-email-andrew@lunn.ch>","list_archive_url":null,"date":"2017-09-26T22:25:59","name":"[net-next,2/6] net: dsa: {e}dsa: set offload_fwd_mark on received packets","commit_ref":null,"pull_url":null,"state":"superseded","archived":true,"hash":"a2ef45fda9a9d319aa0da7b025b2d99aced69ee8","submitter":{"id":13608,"url":"http://patchwork.ozlabs.org/api/people/13608/?format=json","name":"Andrew Lunn","email":"andrew@lunn.ch"},"delegate":{"id":34,"url":"http://patchwork.ozlabs.org/api/users/34/?format=json","username":"davem","first_name":"David","last_name":"Miller","email":"davem@davemloft.net"},"mbox":"http://patchwork.ozlabs.org/project/netdev/patch/1506464764-12699-3-git-send-email-andrew@lunn.ch/mbox/","series":[{"id":5236,"url":"http://patchwork.ozlabs.org/api/series/5236/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/list/?series=5236","date":"2017-09-26T22:26:00","name":"mv88e6xxx broadcast flooding in hardware","version":1,"mbox":"http://patchwork.ozlabs.org/series/5236/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/818846/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/818846/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3y1wbJ2j4Sz9s3T\n\tfor ;\n\tWed, 27 Sep 2017 08:28:44 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1031066AbdIZW2m (ORCPT );\n\tTue, 26 Sep 2017 18:28:42 -0400","from vps0.lunn.ch ([185.16.172.187]:57027 \"EHLO vps0.lunn.ch\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S969562AbdIZW2l (ORCPT );\n\tTue, 26 Sep 2017 18:28:41 -0400","from andrew by vps0.lunn.ch with local (Exim 4.84_2)\n\t(envelope-from )\n\tid 1dwyIq-0003JY-RX; Wed, 27 Sep 2017 00:26:08 +0200"],"From":"Andrew Lunn ","To":"David Miller ","Cc":"Vivien Didelot ,\n\tnetdev , Andrew Lunn ","Subject":"[PATCH net-next 2/6] net: dsa: {e}dsa: set offload_fwd_mark on\n\treceived packets","Date":"Wed, 27 Sep 2017 00:25:59 +0200","Message-Id":"<1506464764-12699-3-git-send-email-andrew@lunn.ch>","X-Mailer":"git-send-email 2.1.4","In-Reply-To":"<1506464764-12699-1-git-send-email-andrew@lunn.ch>","References":"<1506464764-12699-1-git-send-email-andrew@lunn.ch>","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"},"content":"The software bridge needs to know if a packet has already been bridged\nby hardware offload to ports in the same hardware offload, in order\nthat it does not re-flood them, causing duplicates. This is\nparticularly true for broadcast and multicast traffic which the host\nhas requested.\n\nBy setting offload_fwd_mark in the skb the bridge will only flood to\nports in other offloads and other netifs. Set this flag in the DSA and\nEDSA tag driver.\n\nSigned-off-by: Andrew Lunn \n---\n\nv2\n--\nFor the moment, do this in the tag drivers, not the generic code.\nOnce we get more test results from other switches, maybe move it back\nagain.\n---\n net/dsa/tag_dsa.c | 1 +\n net/dsa/tag_edsa.c | 1 +\n 2 files changed, 2 insertions(+)","diff":"diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c\nindex fbf9ca954773..ea6ada9d5016 100644\n--- a/net/dsa/tag_dsa.c\n+++ b/net/dsa/tag_dsa.c\n@@ -154,6 +154,7 @@ static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev,\n \t}\n \n \tskb->dev = ds->ports[source_port].netdev;\n+\tskb->offload_fwd_mark = 1;\n \n \treturn skb;\n }\ndiff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c\nindex 76367ba1b2e2..a961b22a7018 100644\n--- a/net/dsa/tag_edsa.c\n+++ b/net/dsa/tag_edsa.c\n@@ -173,6 +173,7 @@ static struct sk_buff *edsa_rcv(struct sk_buff *skb, struct net_device *dev,\n \t}\n \n \tskb->dev = ds->ports[source_port].netdev;\n+\tskb->offload_fwd_mark = 1;\n \n \treturn skb;\n }\n","prefixes":["net-next","2/6"]}