Merge branch 'mlxsw-vlan'

Jiri Pirko says:

====================
mlxsw: small driver update

Couple of VLAN-related patches.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 84 insertions, 45 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 617fb22b5d81..f21e23983a1a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -342,14 +342,35 @@ err_port_add_vid:
 	return err;
 }
 
+static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port,
+				     u16 vid_begin, u16 vid_end, bool is_member,
+				     bool untagged)
+{
+	u16 vid, vid_e;
+	int err;
+
+	for (vid = vid_begin; vid <= vid_end;
+	     vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
+		vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
+			    vid_end);
+
+		err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
+					     is_member, untagged);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 				     u16 vid_begin, u16 vid_end,
 				     bool flag_untagged, bool flag_pvid)
 {
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	struct net_device *dev = mlxsw_sp_port->dev;
+	u16 vid, last_visited_vid, old_pvid;
 	enum mlxsw_reg_svfa_mt mt;
-	u16 vid, vid_e;
 	int err;
 
 	/* In case this is invoked with BRIDGE_FLAGS_SELF and port is
@@ -377,15 +398,18 @@ static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 			if (err) {
 				netdev_err(dev, "Failed to create FID=VID=%d mapping\n",
 					   vid);
-				return err;
+				goto err_port_vid_to_fid_set;
 			}
 		}
+	}
 
-		/* Set FID mapping according to port's mode */
+	/* Set FID mapping according to port's mode */
+	for (vid = vid_begin; vid <= vid_end; vid++) {
 		err = mlxsw_sp_port_fid_map(mlxsw_sp_port, vid);
 		if (err) {
 			netdev_err(dev, "Failed to map FID=%d", vid);
-			return err;
+			last_visited_vid = --vid;
+			goto err_port_fid_map;
 		}
 	}
 
@@ -393,40 +417,62 @@ static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 					true, false);
 	if (err) {
 		netdev_err(dev, "Failed to configure flooding\n");
-		return err;
+		goto err_port_flood_set;
 	}
 
-	for (vid = vid_begin; vid <= vid_end;
-	     vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
-		vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
-			    vid_end);
-
-		err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e, true,
-					     flag_untagged);
-		if (err) {
-			netdev_err(mlxsw_sp_port->dev, "Unable to add VIDs %d-%d\n",
-				   vid, vid_e);
-			return err;
-		}
+	err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
+					true, flag_untagged);
+	if (err) {
+		netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin,
+			   vid_end);
+		goto err_port_vlans_set;
 	}
 
-	vid = vid_begin;
-	if (flag_pvid && mlxsw_sp_port->pvid != vid) {
-		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid);
+	old_pvid = mlxsw_sp_port->pvid;
+	if (flag_pvid && old_pvid != vid_begin) {
+		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin);
 		if (err) {
-			netdev_err(mlxsw_sp_port->dev, "Unable to add PVID %d\n",
-				   vid);
-			return err;
+			netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
+			goto err_port_pvid_set;
 		}
-		mlxsw_sp_port->pvid = vid;
+		mlxsw_sp_port->pvid = vid_begin;
 	}
 
 	/* Changing activity bits only if HW operation succeded */
 	for (vid = vid_begin; vid <= vid_end; vid++)
 		set_bit(vid, mlxsw_sp_port->active_vlans);
 
-	return mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
-					   mlxsw_sp_port->stp_state);
+	/* STP state change must be done after we set active VLANs */
+	err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
+					  mlxsw_sp_port->stp_state);
+	if (err) {
+		netdev_err(dev, "Failed to set STP state\n");
+		goto err_port_stp_state_set;
+	}
+
+	return 0;
+
+err_port_vid_to_fid_set:
+	mlxsw_sp_fid_destroy(mlxsw_sp, vid);
+	return err;
+
+err_port_stp_state_set:
+	for (vid = vid_begin; vid <= vid_end; vid++)
+		clear_bit(vid, mlxsw_sp_port->active_vlans);
+	if (old_pvid != mlxsw_sp_port->pvid)
+		mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
+err_port_pvid_set:
+	__mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
+				  false);
+err_port_vlans_set:
+	__mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end, false,
+				  false);
+err_port_flood_set:
+	last_visited_vid = vid_end;
+err_port_fid_map:
+	for (vid = last_visited_vid; vid >= vid_begin; vid--)
+		mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid);
+	return err;
 }
 
 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
@@ -532,7 +578,7 @@ static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
 				     u16 vid_begin, u16 vid_end, bool init)
 {
 	struct net_device *dev = mlxsw_sp_port->dev;
-	u16 vid, vid_e;
+	u16 vid, pvid;
 	int err;
 
 	/* In case this is invoked with BRIDGE_FLAGS_SELF and port is
@@ -542,30 +588,23 @@ static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
 	if (!init && !mlxsw_sp_port->bridged)
 		return mlxsw_sp_port_kill_vids(dev, vid_begin, vid_end);
 
-	for (vid = vid_begin; vid <= vid_end;
-	     vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
-		vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
-			    vid_end);
-		err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e, false,
-					     false);
-		if (err) {
-			netdev_err(mlxsw_sp_port->dev, "Unable to del VIDs %d-%d\n",
-				   vid, vid_e);
-			return err;
-		}
+	err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
+					false, false);
+	if (err) {
+		netdev_err(dev, "Unable to del VIDs %d-%d\n", vid_begin,
+			   vid_end);
+		return err;
 	}
 
-	if ((mlxsw_sp_port->pvid >= vid_begin) &&
-	    (mlxsw_sp_port->pvid <= vid_end)) {
+	pvid = mlxsw_sp_port->pvid;
+	if (pvid >= vid_begin && pvid <= vid_end && pvid != 1) {
 		/* Default VLAN is always 1 */
-		mlxsw_sp_port->pvid = 1;
-		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port,
-					     mlxsw_sp_port->pvid);
+		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
 		if (err) {
-			netdev_err(mlxsw_sp_port->dev, "Unable to del PVID %d\n",
-				   vid);
+			netdev_err(dev, "Unable to del PVID %d\n", pvid);
 			return err;
 		}
+		mlxsw_sp_port->pvid = 1;
 	}
 
 	if (init)