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GET /api/patches/817940/?format=api
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{
    "id": 817940,
    "url": "http://patchwork.ozlabs.org/api/patches/817940/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/20170924172212.10096-5-jiri@resnulli.us/",
    "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": "<20170924172212.10096-5-jiri@resnulli.us>",
    "list_archive_url": null,
    "date": "2017-09-24T17:22:04",
    "name": "[net-next,v2,04/12] ipmr: Send FIB notifications on MFC and VIF entries",
    "commit_ref": null,
    "pull_url": null,
    "state": "changes-requested",
    "archived": true,
    "hash": "54ba431d3610402cb77970f00c9cde58f1b6bda1",
    "submitter": {
        "id": 15321,
        "url": "http://patchwork.ozlabs.org/api/people/15321/?format=api",
        "name": "Jiri Pirko",
        "email": "jiri@resnulli.us"
    },
    "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/20170924172212.10096-5-jiri@resnulli.us/mbox/",
    "series": [
        {
            "id": 4828,
            "url": "http://patchwork.ozlabs.org/api/series/4828/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=4828",
            "date": "2017-09-24T17:22:00",
            "name": "mlxsw: Add support for offloading IPv4 multicast routes",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/4828/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/817940/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/817940/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<netdev-owner@vger.kernel.org>",
        "X-Original-To": "patchwork-incoming@ozlabs.org",
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        ],
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        ],
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        "X-Gm-Message-State": "AHPjjUj227+kCn1cEQkWVBjkp1NLAC6oAiPj61o60a6Cz20cJT3AAa22\n\tUSuBGTgJSo39Jra2eZ6s8/ltM827",
        "X-Google-Smtp-Source": "AOwi7QAjk1rhkbU57gK3pggA+HmReXhxfnDPGyaE6SX2DzbGD+VCcrnPD1DWqB6ZyetgiwcHd/V7Qw==",
        "X-Received": "by 10.28.105.156 with SMTP id z28mr9212538wmh.73.1506273737723; \n\tSun, 24 Sep 2017 10:22:17 -0700 (PDT)",
        "From": "Jiri Pirko <jiri@resnulli.us>",
        "To": "netdev@vger.kernel.org",
        "Cc": "davem@davemloft.net, yotamg@mellanox.com, idosch@mellanox.com,\n\tmlxsw@mellanox.com, nikolay@cumulusnetworks.com, andrew@lunn.ch",
        "Subject": "[patch net-next v2 04/12] ipmr: Send FIB notifications on MFC and\n\tVIF entries",
        "Date": "Sun, 24 Sep 2017 19:22:04 +0200",
        "Message-Id": "<20170924172212.10096-5-jiri@resnulli.us>",
        "X-Mailer": "git-send-email 2.9.5",
        "In-Reply-To": "<20170924172212.10096-1-jiri@resnulli.us>",
        "References": "<20170924172212.10096-1-jiri@resnulli.us>",
        "Sender": "netdev-owner@vger.kernel.org",
        "Precedence": "bulk",
        "List-ID": "<netdev.vger.kernel.org>",
        "X-Mailing-List": "netdev@vger.kernel.org"
    },
    "content": "From: Yotam Gigi <yotamg@mellanox.com>\n\nUse the newly introduced notification chain to send events upon VIF and MFC\naddition and deletion. The MFC notifications are sent only on resolved MFC\nentries, as unresolved cannot be offloaded.\n\nSigned-off-by: Yotam Gigi <yotamg@mellanox.com>\nReviewed-by: Ido Schimmel <idosch@mellanox.com>\nSigned-off-by: Jiri Pirko <jiri@mellanox.com>\nReviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>\n---\n net/ipv4/ipmr.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 53 insertions(+)",
    "diff": "diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c\nindex 49879c3..ba71bc4 100644\n--- a/net/ipv4/ipmr.c\n+++ b/net/ipv4/ipmr.c\n@@ -627,6 +627,27 @@ static int call_ipmr_vif_entry_notifier(struct notifier_block *nb,\n \treturn call_fib_notifier(nb, net, event_type, &info.info);\n }\n \n+static int call_ipmr_vif_entry_notifiers(struct net *net,\n+\t\t\t\t\t enum fib_event_type event_type,\n+\t\t\t\t\t struct vif_device *vif,\n+\t\t\t\t\t vifi_t vif_index, u32 tb_id)\n+{\n+\tstruct vif_entry_notifier_info info = {\n+\t\t.info = {\n+\t\t\t.family = RTNL_FAMILY_IPMR,\n+\t\t\t.net = net,\n+\t\t},\n+\t\t.dev = vif->dev,\n+\t\t.vif_index = vif_index,\n+\t\t.vif_flags = vif->flags,\n+\t\t.tb_id = tb_id,\n+\t};\n+\n+\tASSERT_RTNL();\n+\tnet->ipv4.ipmr_seq++;\n+\treturn call_fib_notifiers(net, event_type, &info.info);\n+}\n+\n static int call_ipmr_mfc_entry_notifier(struct notifier_block *nb,\n \t\t\t\t\tstruct net *net,\n \t\t\t\t\tenum fib_event_type event_type,\n@@ -644,6 +665,24 @@ static int call_ipmr_mfc_entry_notifier(struct notifier_block *nb,\n \treturn call_fib_notifier(nb, net, event_type, &info.info);\n }\n \n+static int call_ipmr_mfc_entry_notifiers(struct net *net,\n+\t\t\t\t\t enum fib_event_type event_type,\n+\t\t\t\t\t struct mfc_cache *mfc, u32 tb_id)\n+{\n+\tstruct mfc_entry_notifier_info info = {\n+\t\t.info = {\n+\t\t\t.family = RTNL_FAMILY_IPMR,\n+\t\t\t.net = net,\n+\t\t},\n+\t\t.mfc = mfc,\n+\t\t.tb_id = tb_id\n+\t};\n+\n+\tASSERT_RTNL();\n+\tnet->ipv4.ipmr_seq++;\n+\treturn call_fib_notifiers(net, event_type, &info.info);\n+}\n+\n /**\n  *\tvif_delete - Delete a VIF entry\n  *\t@notify: Set to 1, if the caller is a notifier_call\n@@ -651,6 +690,7 @@ static int call_ipmr_mfc_entry_notifier(struct notifier_block *nb,\n static int vif_delete(struct mr_table *mrt, int vifi, int notify,\n \t\t      struct list_head *head)\n {\n+\tstruct net *net = read_pnet(&mrt->net);\n \tstruct vif_device *v;\n \tstruct net_device *dev;\n \tstruct in_device *in_dev;\n@@ -660,6 +700,10 @@ static int vif_delete(struct mr_table *mrt, int vifi, int notify,\n \n \tv = &mrt->vif_table[vifi];\n \n+\tif (VIF_EXISTS(mrt, vifi))\n+\t\tcall_ipmr_vif_entry_notifiers(net, FIB_EVENT_VIF_DEL, v, vifi,\n+\t\t\t\t\t      mrt->id);\n+\n \twrite_lock_bh(&mrt_lock);\n \tdev = v->dev;\n \tv->dev = NULL;\n@@ -909,6 +953,7 @@ static int vif_add(struct net *net, struct mr_table *mrt,\n \tif (vifi+1 > mrt->maxvif)\n \t\tmrt->maxvif = vifi+1;\n \twrite_unlock_bh(&mrt_lock);\n+\tcall_ipmr_vif_entry_notifiers(net, FIB_EVENT_VIF_ADD, v, vifi, mrt->id);\n \treturn 0;\n }\n \n@@ -1209,6 +1254,7 @@ static int ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi,\n \n static int ipmr_mfc_delete(struct mr_table *mrt, struct mfcctl *mfc, int parent)\n {\n+\tstruct net *net = read_pnet(&mrt->net);\n \tstruct mfc_cache *c;\n \n \t/* The entries are added/deleted only under RTNL */\n@@ -1220,6 +1266,7 @@ static int ipmr_mfc_delete(struct mr_table *mrt, struct mfcctl *mfc, int parent)\n \t\treturn -ENOENT;\n \trhltable_remove(&mrt->mfc_hash, &c->mnode, ipmr_rht_params);\n \tlist_del_rcu(&c->list);\n+\tcall_ipmr_mfc_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, c, mrt->id);\n \tmroute_netlink_event(mrt, c, RTM_DELROUTE);\n \tipmr_cache_put(c);\n \n@@ -1248,6 +1295,8 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,\n \t\tif (!mrtsock)\n \t\t\tc->mfc_flags |= MFC_STATIC;\n \t\twrite_unlock_bh(&mrt_lock);\n+\t\tcall_ipmr_mfc_entry_notifiers(net, FIB_EVENT_ENTRY_REPLACE, c,\n+\t\t\t\t\t      mrt->id);\n \t\tmroute_netlink_event(mrt, c, RTM_NEWROUTE);\n \t\treturn 0;\n \t}\n@@ -1297,6 +1346,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,\n \t\tipmr_cache_resolve(net, mrt, uc, c);\n \t\tipmr_cache_free(uc);\n \t}\n+\tcall_ipmr_mfc_entry_notifiers(net, FIB_EVENT_ENTRY_ADD, c, mrt->id);\n \tmroute_netlink_event(mrt, c, RTM_NEWROUTE);\n \treturn 0;\n }\n@@ -1304,6 +1354,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,\n /* Close the multicast socket, and clear the vif tables etc */\n static void mroute_clean_tables(struct mr_table *mrt, bool all)\n {\n+\tstruct net *net = read_pnet(&mrt->net);\n \tstruct mfc_cache *c, *tmp;\n \tLIST_HEAD(list);\n \tint i;\n@@ -1322,6 +1373,8 @@ static void mroute_clean_tables(struct mr_table *mrt, bool all)\n \t\t\tcontinue;\n \t\trhltable_remove(&mrt->mfc_hash, &c->mnode, ipmr_rht_params);\n \t\tlist_del_rcu(&c->list);\n+\t\tcall_ipmr_mfc_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, c,\n+\t\t\t\t\t      mrt->id);\n \t\tmroute_netlink_event(mrt, c, RTM_DELROUTE);\n \t\tipmr_cache_put(c);\n \t}\n",
    "prefixes": [
        "net-next",
        "v2",
        "04/12"
    ]
}