From aac78a44088728f0712eaea74fbb2493e12080dd Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Tue, 15 Dec 2015 16:03:42 +0100 Subject: [PATCH] mlxsw: spectrum: Adjust FDB notifications for VLAN devices FDB notifications contain the FID and port (or LAG ID) on which the MAC was learned. In the case of the 802.1Q bridge one can easily derive the matching VID - as FID equals VID - and generate the appropriate notification for the software bridge. With VLAN devices this is no longer the case, as these are associated with a vFID. Solve that by converting the FID to a vFID and lookup the matching VLAN device. From that derive the VID and whether learning (and learning sync) should occur. Signed-off-by: Ido Schimmel Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/spectrum.h | 25 ++++++++++++++ .../ethernet/mellanox/mlxsw/spectrum_switchdev.c | 40 +++++++++++++++++++--- 2 files changed, 61 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 809c322..33794f2 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -73,6 +73,16 @@ static inline u16 mlxsw_sp_vfid_to_fid(u16 vfid) return MLXSW_SP_VFID_BASE + vfid; } +static inline u16 mlxsw_sp_fid_to_vfid(u16 fid) +{ + return fid - MLXSW_SP_VFID_BASE; +} + +static inline bool mlxsw_sp_fid_is_vfid(u16 fid) +{ + return fid >= MLXSW_SP_VFID_BASE; +} + struct mlxsw_sp { struct { struct list_head list; @@ -177,6 +187,21 @@ mlxsw_sp_port_vport_find(const struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) return NULL; } +static inline struct mlxsw_sp_port * +mlxsw_sp_port_vport_find_by_vfid(const struct mlxsw_sp_port *mlxsw_sp_port, + u16 vfid) +{ + struct mlxsw_sp_port *mlxsw_sp_vport; + + list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, + vport.list) { + if (mlxsw_sp_vport_vfid_get(mlxsw_sp_vport) == vfid) + return mlxsw_sp_vport; + } + + return NULL; +} + enum mlxsw_sp_flood_table { MLXSW_SP_FLOOD_TABLE_UC, MLXSW_SP_FLOOD_TABLE_BM, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index 49d5318..e6e5b5e 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -994,6 +994,24 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, return; } + if (mlxsw_sp_fid_is_vfid(fid)) { + u16 vfid = mlxsw_sp_fid_to_vfid(fid); + struct mlxsw_sp_port *mlxsw_sp_vport; + + mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_vfid(mlxsw_sp_port, + vfid); + if (!mlxsw_sp_vport) { + netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n"); + return; + } + + vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); + /* Override the physical port with the vPort. */ + mlxsw_sp_port = mlxsw_sp_vport; + } else { + vid = fid; + } + err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port, mac, fid, adding && mlxsw_sp_port->learning, true); if (err) { @@ -1002,8 +1020,6 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, return; } - vid = fid; - mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning, mlxsw_sp_port->learning_sync, adding, mac, vid, mlxsw_sp_port->dev); @@ -1026,6 +1042,24 @@ static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, return; } + if (mlxsw_sp_fid_is_vfid(fid)) { + u16 vfid = mlxsw_sp_fid_to_vfid(fid); + struct mlxsw_sp_port *mlxsw_sp_vport; + + mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_vfid(mlxsw_sp_port, + vfid); + if (!mlxsw_sp_vport) { + netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n"); + return; + } + + vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); + /* Override the physical port with the vPort. */ + mlxsw_sp_port = mlxsw_sp_vport; + } else { + vid = fid; + } + err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, adding && mlxsw_sp_port->learning, true); @@ -1035,8 +1069,6 @@ static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, return; } - vid = fid; - mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning, mlxsw_sp_port->learning_sync, adding, mac, vid, -- 2.7.4