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{
    "id": 810321,
    "url": "http://patchwork.ozlabs.org/api/patches/810321/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/1504654510-31004-8-git-send-email-andrew@lunn.ch/",
    "project": {
        "id": 7,
        "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api",
        "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": "<1504654510-31004-8-git-send-email-andrew@lunn.ch>",
    "list_archive_url": null,
    "date": "2017-09-05T23:35:09",
    "name": "[v2,rfc,7/8] net: dsa: set offload_fwd_mark on received packets",
    "commit_ref": null,
    "pull_url": null,
    "state": "rfc",
    "archived": true,
    "hash": "3f36c73bdc41b5debf2c49c817619073c413c3fd",
    "submitter": {
        "id": 13608,
        "url": "http://patchwork.ozlabs.org/api/people/13608/?format=api",
        "name": "Andrew Lunn",
        "email": "andrew@lunn.ch"
    },
    "delegate": {
        "id": 34,
        "url": "http://patchwork.ozlabs.org/api/users/34/?format=api",
        "username": "davem",
        "first_name": "David",
        "last_name": "Miller",
        "email": "davem@davemloft.net"
    },
    "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/1504654510-31004-8-git-send-email-andrew@lunn.ch/mbox/",
    "series": [
        {
            "id": 1666,
            "url": "http://patchwork.ozlabs.org/api/series/1666/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=1666",
            "date": "2017-09-05T23:35:04",
            "name": "IGMP snooping for local traffic",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/1666/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/810321/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/810321/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<netdev-owner@vger.kernel.org>",
        "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=<UNKNOWN>)",
        "Received": [
            "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xn34l0Dhzz9s7h\n\tfor <patchwork-incoming@ozlabs.org>;\n\tWed,  6 Sep 2017 09:36:07 +1000 (AEST)",
            "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1753657AbdIEXgF (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tTue, 5 Sep 2017 19:36:05 -0400",
            "from vps0.lunn.ch ([178.209.37.122]:58199 \"EHLO vps0.lunn.ch\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S1753475AbdIEXgE (ORCPT <rfc822;netdev@vger.kernel.org>);\n\tTue, 5 Sep 2017 19:36:04 -0400",
            "from andrew by vps0.lunn.ch with local (Exim 4.84_2)\n\t(envelope-from <andrew@lunn.ch>)\n\tid 1dpNNG-00085C-Jm; Wed, 06 Sep 2017 01:35:18 +0200"
        ],
        "From": "Andrew Lunn <andrew@lunn.ch>",
        "To": "netdev <netdev@vger.kernel.org>",
        "Cc": "jiri@resnulli.us, nikolay@cumulusnetworks.com,\n\tFlorian Fainelli <f.fainelli@gmail.com>,\n\tVivien Didelot <vivien.didelot@savoirfairelinux.com>,\n\tAndrew Lunn <andrew@lunn.ch>",
        "Subject": "[PATCH v2 rfc 7/8] net: dsa: set offload_fwd_mark on received\n\tpackets",
        "Date": "Wed,  6 Sep 2017 01:35:09 +0200",
        "Message-Id": "<1504654510-31004-8-git-send-email-andrew@lunn.ch>",
        "X-Mailer": "git-send-email 2.1.4",
        "In-Reply-To": "<1504654510-31004-1-git-send-email-andrew@lunn.ch>",
        "References": "<1504654510-31004-1-git-send-email-andrew@lunn.ch>",
        "Sender": "netdev-owner@vger.kernel.org",
        "Precedence": "bulk",
        "List-ID": "<netdev.vger.kernel.org>",
        "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 multicast traffic which the host has required.\n\nBy setting offload_fwd_mark in the skb the bridge will only flood to\nports in other offloads and other netifs.\n\nSigned-off-by: Andrew Lunn <andrew@lunn.ch>\n---\n net/dsa/dsa.c | 1 +\n 1 file changed, 1 insertion(+)",
    "diff": "diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c\nindex 03c58b0eb082..5732696ac71c 100644\n--- a/net/dsa/dsa.c\n+++ b/net/dsa/dsa.c\n@@ -213,6 +213,7 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,\n \tskb_push(skb, ETH_HLEN);\n \tskb->pkt_type = PACKET_HOST;\n \tskb->protocol = eth_type_trans(skb, skb->dev);\n+\tskb->offload_fwd_mark = 1;\n \n \ts = this_cpu_ptr(p->stats64);\n \tu64_stats_update_begin(&s->syncp);\n",
    "prefixes": [
        "v2",
        "rfc",
        "7/8"
    ]
}