From: Petr Machata <petrm@xxxxxxxxxxxx>
Any existing NVE FDB entries need to be offloaded when NVE is enabled
for a given FID. Recent patches have added fdb_replay op for this, so
just invoke it from mlxsw_sp_nve_fid_enable().
When NVE is disabled on a FID, any existing FDB offloaded marks need to
be cleared on NVE device as well as on its bridge master. An op to
handle this, fdb_clear_offload, has been added to FID ops and NVE ops in
previous patches. Add code to resolve the NVE device, NVE type, and
dispatch to both fdb_clear_offload ops.
Signed-off-by: Petr Machata <petrm@xxxxxxxxxxxx>
Signed-off-by: Ido Schimmel <idosch@xxxxxxxxxxxx>
---
.../ethernet/mellanox/mlxsw/spectrum_nve.c | 41 +++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c
index e8e4cb6dfd38..9a86a7cde3b9 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c
@@ -789,6 +789,21 @@ static void mlxsw_sp_nve_fdb_flush_by_fid(struct mlxsw_sp *mlxsw_sp,
mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
}
+static void mlxsw_sp_nve_fdb_clear_offload(struct mlxsw_sp *mlxsw_sp,
+ const struct mlxsw_sp_fid *fid,
+ const struct net_device *nve_dev,
+ __be32 vni)
+{
+ const struct mlxsw_sp_nve_ops *ops;
+ enum mlxsw_sp_nve_type type;
+
+ if (WARN_ON(mlxsw_sp_fid_nve_type(fid, &type)))
+ return;
+
+ ops = mlxsw_sp->nve->nve_ops_arr[type];
+ ops->fdb_clear_offload(nve_dev, vni);
+}
+
int mlxsw_sp_nve_fid_enable(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *fid,
struct mlxsw_sp_nve_params *params,
struct netlink_ext_ack *extack)
@@ -826,8 +841,16 @@ int mlxsw_sp_nve_fid_enable(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *fid,
nve->config = config;
+ err = ops->fdb_replay(params->dev, params->vni);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack, "Failed to offload the FDB");
+ goto err_fdb_replay;
+ }
+
return 0;
+err_fdb_replay:
+ mlxsw_sp_fid_vni_clear(fid);
err_fid_vni_set:
mlxsw_sp_nve_tunnel_fini(mlxsw_sp);
return err;
@@ -837,9 +860,27 @@ void mlxsw_sp_nve_fid_disable(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fid *fid)
{
u16 fid_index = mlxsw_sp_fid_index(fid);
+ struct net_device *nve_dev;
+ int nve_ifindex;
+ __be32 vni;
mlxsw_sp_nve_flood_ip_flush(mlxsw_sp, fid);
mlxsw_sp_nve_fdb_flush_by_fid(mlxsw_sp, fid_index);
+
+ if (WARN_ON(mlxsw_sp_fid_nve_ifindex(fid, &nve_ifindex) ||
+ mlxsw_sp_fid_vni(fid, &vni)))
+ goto out;
+
+ nve_dev = dev_get_by_index(&init_net, nve_ifindex);
+ if (!nve_dev)
+ goto out;
+
+ mlxsw_sp_nve_fdb_clear_offload(mlxsw_sp, fid, nve_dev, vni);
+ mlxsw_sp_fid_fdb_clear_offload(fid, nve_dev);
+
+ dev_put(nve_dev);
+
+out:
mlxsw_sp_fid_vni_clear(fid);
mlxsw_sp_nve_tunnel_fini(mlxsw_sp);
}
--
2.19.1
