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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , CC: Simon Horman , Roopa Prabhu , "Nikolay Aleksandrov" , , Ido Schimmel , Petr Machata , Subject: [PATCH net-next 2/4] net: bridge: Handle changes in VLAN_FLAG_BRIDGE_BINDING Date: Wed, 18 Dec 2024 18:15:57 +0100 Message-ID: <90a8ca8aea4d81378b29d75d9e562433e0d5c7ff.1734540770.git.petrm@nvidia.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: rnnvmail202.nvidia.com (10.129.68.7) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044F6:EE_|MW4PR12MB6801:EE_ X-MS-Office365-Filtering-Correlation-Id: 82e558c1-c1d6-4381-62d9-08dd1f87d84d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700013|376014|1800799024; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(36860700013)(376014)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Dec 2024 17:17:26.4755 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 82e558c1-c1d6-4381-62d9-08dd1f87d84d X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F6.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB6801 X-Patchwork-Delegate: kuba@kernel.org When bridge binding is enabled on a VLAN netdevice, its link state should track bridge ports that are members of the corresponding VLAN. This works for newly-added netdevices. However toggling the option does not have the effect of enabling or disabling the behavior as appropriate. In this patch, react to bridge_binding toggles on VLAN uppers. Signed-off-by: Petr Machata Reviewed-by: Ido Schimmel --- net/bridge/br.c | 7 +++++++ net/bridge/br_private.h | 9 +++++++++ net/bridge/br_vlan.c | 24 ++++++++++++++++++++++++ 3 files changed, 40 insertions(+) diff --git a/net/bridge/br.c b/net/bridge/br.c index 2cab878e0a39..183fcb362f9e 100644 --- a/net/bridge/br.c +++ b/net/bridge/br.c @@ -51,6 +51,13 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v } } + if (is_vlan_dev(dev)) { + struct net_device *real_dev = vlan_dev_real_dev(dev); + + if (netif_is_bridge_master(real_dev)) + br_vlan_vlan_upper_event(real_dev, dev, event); + } + /* not a port of a bridge */ p = br_port_get_rtnl(dev); if (!p) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 9853cfbb9d14..29d6ec45cf41 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -1571,6 +1571,9 @@ void br_vlan_get_stats(const struct net_bridge_vlan *v, void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); int br_vlan_bridge_event(struct net_device *dev, unsigned long event, void *ptr); +void br_vlan_vlan_upper_event(struct net_device *br_dev, + struct net_device *vlan_dev, + unsigned long event); int br_vlan_rtnl_init(void); void br_vlan_rtnl_uninit(void); void br_vlan_notify(const struct net_bridge *br, @@ -1802,6 +1805,12 @@ static inline int br_vlan_bridge_event(struct net_device *dev, return 0; } +static inline void br_vlan_vlan_upper_event(struct net_device *br_dev, + struct net_device *vlan_dev, + unsigned long event) +{ +} + static inline int br_vlan_rtnl_init(void) { return 0; diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index b728b71e693f..d9a69ec9affe 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -1772,6 +1772,30 @@ int br_vlan_bridge_event(struct net_device *dev, unsigned long event, void *ptr) return ret; } +void br_vlan_vlan_upper_event(struct net_device *br_dev, + struct net_device *vlan_dev, + unsigned long event) +{ + struct vlan_dev_priv *vlan = vlan_dev_priv(vlan_dev); + struct net_bridge *br = netdev_priv(br_dev); + bool bridge_binding; + + switch (event) { + case NETDEV_CHANGE: + case NETDEV_UP: + break; + default: + return; + } + + bridge_binding = vlan->flags & VLAN_FLAG_BRIDGE_BINDING; + br_vlan_toggle_bridge_binding(br_dev, bridge_binding); + if (bridge_binding) + br_vlan_set_vlan_dev_state(br, vlan_dev); + else if (!bridge_binding && netif_carrier_ok(br_dev)) + netif_carrier_on(vlan_dev); +} + /* Must be protected by RTNL. */ void br_vlan_port_event(struct net_bridge_port *p, unsigned long event) {