diff options
author | Petr Machata <petrm@mellanox.com> | 2018-11-22 23:29:57 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2018-11-23 18:02:24 -0800 |
commit | 52a227b30eba3ad4b8ac06ad187751ced0295c2a (patch) | |
tree | e5d68b74edd1e089dae8d30ebd518f2b76993068 /drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | |
parent | f30f0601eb934dda107decd2e57b37168096fd74 (diff) | |
download | linux-stable-52a227b30eba3ad4b8ac06ad187751ced0295c2a.tar.gz linux-stable-52a227b30eba3ad4b8ac06ad187751ced0295c2a.tar.bz2 linux-stable-52a227b30eba3ad4b8ac06ad187751ced0295c2a.zip |
mlxsw: spectrum_switchdev: Handle SWITCHDEV_PORT_OBJ_ADD/_DEL
Following patches will change the way of distributing port object
changes from a switchdev operation to a switchdev notifier. The
switchdev code currently recursively descends through layers of lower
devices, eventually calling the op on a front-panel port device. The
notifier will instead be sent referencing the bridge port device, which
may be a stacking device that's one of front-panel ports uppers, or a
completely unrelated device.
To handle SWITCHDEV_PORT_OBJ_ADD and _DEL, subscribe to the blocking
notifier chain. Dispatch to mlxsw_sp_port_obj_add() resp. _del() to
maintain the behavior that the switchdev operation based code currently
has. Defer to switchdev_handle_port_obj_add() / _del() to handle the
recursive descend, because mlxsw supports a number of upper types.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index b32a5ee57fb9..3756aaecd39c 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -3118,6 +3118,32 @@ static struct notifier_block mlxsw_sp_switchdev_notifier = { .notifier_call = mlxsw_sp_switchdev_event, }; +static int mlxsw_sp_switchdev_blocking_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + int err; + + switch (event) { + case SWITCHDEV_PORT_OBJ_ADD: + err = switchdev_handle_port_obj_add(dev, ptr, + mlxsw_sp_port_dev_check, + mlxsw_sp_port_obj_add); + return notifier_from_errno(err); + case SWITCHDEV_PORT_OBJ_DEL: + err = switchdev_handle_port_obj_del(dev, ptr, + mlxsw_sp_port_dev_check, + mlxsw_sp_port_obj_del); + return notifier_from_errno(err); + } + + return NOTIFY_DONE; +} + +static struct notifier_block mlxsw_sp_switchdev_blocking_notifier = { + .notifier_call = mlxsw_sp_switchdev_blocking_event, +}; + u8 mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port) { @@ -3127,6 +3153,7 @@ mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port) static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge; + struct notifier_block *nb; int err; err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME); @@ -3141,17 +3168,33 @@ static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp) return err; } + nb = &mlxsw_sp_switchdev_blocking_notifier; + err = register_switchdev_blocking_notifier(nb); + if (err) { + dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev blocking notifier\n"); + goto err_register_switchdev_blocking_notifier; + } + INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work); bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL; mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp); return 0; + +err_register_switchdev_blocking_notifier: + unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); + return err; } static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp) { + struct notifier_block *nb; + cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw); - unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); + nb = &mlxsw_sp_switchdev_blocking_notifier; + unregister_switchdev_blocking_notifier(nb); + + unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); } int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp) |