diff mbox series

[net-next,12/13] mlxsw: spectrum: Add extack messages to VXLAN FDB rejection

Message ID b224bba4c010c585ed0ed363e855f0d62b061df6.1547679599.git.petrm@mellanox.com
State Accepted
Delegated to: David Miller
Headers show
Series vxlan: Allow vetoing FDB operations | expand

Commit Message

Petr Machata Jan. 16, 2019, 11:06 p.m. UTC 
Annotate the rejections in mlxsw_sp_switchdev_vxlan_work_prepare() with
textual reasons.

Because this code ends up being invoked for FDB replay as well, drop the
default message from there, so that the more accurate error message is
not overwritten.

Signed-off-by: Petr Machata <petrm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c |  4 +---
 .../ethernet/mellanox/mlxsw/spectrum_switchdev.c   | 25 ++++++++++++++++------
 2 files changed, 19 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c
index 94e07767f18e..1df164a4b06d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c
@@ -842,10 +842,8 @@  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, extack);
-	if (err) {
-		NL_SET_ERR_MSG_MOD(extack, "Failed to offload the FDB");
+	if (err)
 		goto err_fdb_replay;
-	}
 
 	return 0;
 
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 71aad9d4e160..8ab796e0c0d7 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -3099,23 +3099,34 @@  mlxsw_sp_switchdev_vxlan_work_prepare(struct mlxsw_sp_switchdev_event_work *
 	struct vxlan_dev *vxlan = netdev_priv(switchdev_work->dev);
 	struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info;
 	struct vxlan_config *cfg = &vxlan->cfg;
+	struct netlink_ext_ack *extack;
 
+	extack = switchdev_notifier_info_to_extack(info);
 	vxlan_fdb_info = container_of(info,
 				      struct switchdev_notifier_vxlan_fdb_info,
 				      info);
 
-	if (vxlan_fdb_info->remote_port != cfg->dst_port)
-		return -EOPNOTSUPP;
-	if (vxlan_fdb_info->remote_vni != cfg->vni)
+	if (vxlan_fdb_info->remote_port != cfg->dst_port) {
+		NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Non-default remote port is not supported");
 		return -EOPNOTSUPP;
-	if (vxlan_fdb_info->vni != cfg->vni)
+	}
+	if (vxlan_fdb_info->remote_vni != cfg->vni ||
+	    vxlan_fdb_info->vni != cfg->vni) {
+		NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Non-default VNI is not supported");
 		return -EOPNOTSUPP;
-	if (vxlan_fdb_info->remote_ifindex)
+	}
+	if (vxlan_fdb_info->remote_ifindex) {
+		NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Local interface is not supported");
 		return -EOPNOTSUPP;
-	if (is_multicast_ether_addr(vxlan_fdb_info->eth_addr))
+	}
+	if (is_multicast_ether_addr(vxlan_fdb_info->eth_addr)) {
+		NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Multicast MAC addresses not supported");
 		return -EOPNOTSUPP;
-	if (vxlan_addr_multicast(&vxlan_fdb_info->remote_ip))
+	}
+	if (vxlan_addr_multicast(&vxlan_fdb_info->remote_ip)) {
+		NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Multicast destination IP is not supported");
 		return -EOPNOTSUPP;
+	}
 
 	switchdev_work->vxlan_fdb_info = *vxlan_fdb_info;