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Received: from VI0PR04MB11503.eurprd04.prod.outlook.com (2603:10a6:800:2c7::16) by PA1PR04MB10626.eurprd04.prod.outlook.com (2603:10a6:102:48e::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9891.15; Wed, 6 May 2026 15:16:03 +0000 Received: from VI0PR04MB11503.eurprd04.prod.outlook.com ([fe80::cbe9:4c03:71b6:359f]) by VI0PR04MB11503.eurprd04.prod.outlook.com ([fe80::cbe9:4c03:71b6:359f%6]) with mapi id 15.20.9870.023; Wed, 6 May 2026 15:16:03 +0000 From: Ioana Ciornei To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH net-next 03/13] dpaa2-switch: change dpaa2_switch_port_set_fdb() function prototype Date: Wed, 6 May 2026 18:15:30 +0300 Message-Id: <20260506151540.1242997-4-ioana.ciornei@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260506151540.1242997-1-ioana.ciornei@nxp.com> References: <20260506151540.1242997-1-ioana.ciornei@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: AS4P191CA0018.EURP191.PROD.OUTLOOK.COM (2603:10a6:20b:5d9::14) To VI0PR04MB11503.eurprd04.prod.outlook.com (2603:10a6:800:2c7::16) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI0PR04MB11503:EE_|PA1PR04MB10626:EE_ X-MS-Office365-Filtering-Correlation-Id: ed8a1e23-a840-4bb9-95a4-08deab826346 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|19092799006|1800799024|366016|56012099003|22082099003|18002099003; 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Also, instead of determining if the DPAA2 port is joining or leaving an upper based on the value of the 'bridge_dev' parameter, add the 'linking' parameter to explicitly specify the action. This will enable us to pass the upper device that we are joining/leaving in all possible cases. This will get used in the next patches to determine what kind of device the upper is: a bridge or a bond. Signed-off-by: Ioana Ciornei --- .../ethernet/freescale/dpaa2/dpaa2-switch.c | 33 +++++++++---------- 1 file changed, 15 insertions(+), 18 deletions(-) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c index 6367873401c0..f1b4c24b8a47 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c @@ -62,18 +62,17 @@ dpaa2_switch_lag_get_unused(struct ethsw_core *ethsw) return NULL; } -static u16 dpaa2_switch_port_set_fdb(struct ethsw_port_priv *port_priv, - struct net_device *bridge_dev) +static void dpaa2_switch_port_set_fdb(struct ethsw_port_priv *port_priv, + struct net_device *upper_dev, + bool linking) { struct ethsw_port_priv *other_port_priv = NULL; struct dpaa2_switch_fdb *fdb; struct net_device *other_dev; struct list_head *iter; - /* If we leave a bridge (bridge_dev is NULL), find an unused - * FDB and use that. - */ - if (!bridge_dev) { + /* If we leave a bridge, find an unused FDB and use that. */ + if (!linking) { fdb = dpaa2_switch_fdb_get_unused(port_priv->ethsw_data); /* If there is no unused FDB, we must be the last port that @@ -83,13 +82,13 @@ static u16 dpaa2_switch_port_set_fdb(struct ethsw_port_priv *port_priv, if (!fdb) { port_priv->fdb->bridge_dev = NULL; - return 0; + return; } port_priv->fdb = fdb; port_priv->fdb->in_use = true; port_priv->fdb->bridge_dev = NULL; - return 0; + return; } /* The below call to netdev_for_each_lower_dev() demands the RTNL lock @@ -101,7 +100,7 @@ static u16 dpaa2_switch_port_set_fdb(struct ethsw_port_priv *port_priv, /* If part of a bridge, use the FDB of the first dpaa2 switch interface * to be present in that bridge */ - netdev_for_each_lower_dev(bridge_dev, other_dev, iter) { + netdev_for_each_lower_dev(upper_dev, other_dev, iter) { if (!dpaa2_switch_port_dev_check(other_dev)) continue; @@ -127,9 +126,7 @@ static u16 dpaa2_switch_port_set_fdb(struct ethsw_port_priv *port_priv, } /* Keep track of the new upper bridge device */ - port_priv->fdb->bridge_dev = bridge_dev; - - return 0; + port_priv->fdb->bridge_dev = upper_dev; } static void dpaa2_switch_fdb_get_flood_cfg(struct ethsw_core *ethsw, u16 fdb_id, @@ -2040,7 +2037,7 @@ static int dpaa2_switch_port_bridge_join(struct net_device *netdev, if (err) return err; - dpaa2_switch_port_set_fdb(port_priv, upper_dev); + dpaa2_switch_port_set_fdb(port_priv, upper_dev, true); /* Inherit the initial bridge port learning state */ learn_ena = br_port_flag_is_set(netdev, BR_LEARNING); @@ -2066,7 +2063,7 @@ static int dpaa2_switch_port_bridge_join(struct net_device *netdev, err_switchdev_offload: err_egress_flood: - dpaa2_switch_port_set_fdb(port_priv, NULL); + dpaa2_switch_port_set_fdb(port_priv, upper_dev, false); return err; } @@ -2113,7 +2110,7 @@ static int dpaa2_switch_port_bridge_leave(struct net_device *netdev) if (err) netdev_err(netdev, "Unable to clear RX VLANs from old FDB table, err (%d)\n", err); - dpaa2_switch_port_set_fdb(port_priv, NULL); + dpaa2_switch_port_set_fdb(port_priv, port_priv->fdb->bridge_dev, false); /* Restore all RX VLANs into the new FDB table that we just joined */ err = vlan_for_each(netdev, dpaa2_switch_port_restore_rxvlan, netdev); @@ -2381,7 +2378,7 @@ static int dpaa2_switch_port_bond_join(struct net_device *netdev, u8 lag_id; /* Setup the egress flood policy (broadcast, unknown unicast) */ - dpaa2_switch_port_set_fdb(port_priv, bond_dev); + dpaa2_switch_port_set_fdb(port_priv, bond_dev, true); err = dpaa2_switch_fdb_set_egress_flood(ethsw, port_priv->fdb->fdb_id); if (err) goto err_egress_flood; @@ -2416,7 +2413,7 @@ static int dpaa2_switch_port_bond_join(struct net_device *netdev, port_priv->lag = NULL; dpaa2_switch_set_lag_cfg(bond_dev, lag_id, ethsw); err_egress_flood: - dpaa2_switch_port_set_fdb(port_priv, NULL); + dpaa2_switch_port_set_fdb(port_priv, bond_dev, false); return err; } @@ -2435,7 +2432,7 @@ static int dpaa2_switch_port_bond_leave(struct net_device *netdev, return err; /* Setup the FDB for this port which is now standalone */ - dpaa2_switch_port_set_fdb(port_priv, NULL); + dpaa2_switch_port_set_fdb(port_priv, bond_dev, false); /* Setup the egress flood policy (broadcast, unknown unicast). * When the port is not under a bond, only the CTRL interface is part -- 2.25.1