net/mlx5e: Write vlan list into vport context

Each Vport/vNIC must notify underlying e-Switch layer
for vlan table changes in-order to update SR-IOV FDB tables.

We do that at vlan_rx_add_vid and vlan_rx_kill_vid ndos.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 69f1c1a..89313d4 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -465,6 +465,7 @@ enum {
 };
 
 struct mlx5e_vlan_db {
+       unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
        u32           active_vlans_ft_ix[VLAN_N_VID];
        u32           untagged_rule_ft_ix;
        u32           any_vlan_rule_ft_ix;

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c b/drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c
index fb02f6c..5b93c9c 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_flow_table.c
@@ -502,6 +502,49 @@ add_eth_addr_rule_out:
        return err;
 }
 
+static int mlx5e_vport_context_update_vlans(struct mlx5e_priv *priv)
+{
+       struct net_device *ndev = priv->netdev;
+       int max_list_size;
+       int list_size;
+       u16 *vlans;
+       int vlan;
+       int err;
+       int i;
+
+       list_size = 0;
+       for_each_set_bit(vlan, priv->vlan.active_vlans, VLAN_N_VID)
+               list_size++;
+
+       max_list_size = 1 << MLX5_CAP_GEN(priv->mdev, log_max_vlan_list);
+
+       if (list_size > max_list_size) {
+               netdev_warn(ndev,
+                           "netdev vlans list size (%d) > (%d) max vport list size, some vlans will be dropped\n",
+                           list_size, max_list_size);
+               list_size = max_list_size;
+       }
+
+       vlans = kcalloc(list_size, sizeof(*vlans), GFP_KERNEL);
+       if (!vlans)
+               return -ENOMEM;
+
+       i = 0;
+       for_each_set_bit(vlan, priv->vlan.active_vlans, VLAN_N_VID) {
+               if (i >= list_size)
+                       break;
+               vlans[i++] = vlan;
+       }
+
+       err = mlx5_modify_nic_vport_vlans(priv->mdev, vlans, list_size);
+       if (err)
+               netdev_err(ndev, "Failed to modify vport vlans list err(%d)\n",
+                          err);
+
+       kfree(vlans);
+       return err;
+}
+
 enum mlx5e_vlan_rule_type {
        MLX5E_VLAN_RULE_TYPE_UNTAGGED,
        MLX5E_VLAN_RULE_TYPE_ANY_VID,
@@ -552,6 +595,10 @@ static int mlx5e_add_vlan_rule(struct mlx5e_priv *priv,
                         1);
                break;
        default: /* MLX5E_VLAN_RULE_TYPE_MATCH_VID */
+               err = mlx5e_vport_context_update_vlans(priv);
+               if (err)
+                       goto add_vlan_rule_out;
+
                ft_ix = &priv->vlan.active_vlans_ft_ix[vid];
                MLX5_SET(fte_match_param, match_value, outer_headers.vlan_tag,
                         1);
@@ -588,6 +635,7 @@ static void mlx5e_del_vlan_rule(struct mlx5e_priv *priv,
        case MLX5E_VLAN_RULE_TYPE_MATCH_VID:
                mlx5_del_flow_table_entry(priv->ft.vlan,
                                          priv->vlan.active_vlans_ft_ix[vid]);
+               mlx5e_vport_context_update_vlans(priv);
                break;
        }
 }
@@ -619,6 +667,8 @@ int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
 {
        struct mlx5e_priv *priv = netdev_priv(dev);
 
+       set_bit(vid, priv->vlan.active_vlans);
+
        return mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_VID, vid);
 }
 
@@ -627,6 +677,8 @@ int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto,
 {
        struct mlx5e_priv *priv = netdev_priv(dev);
 
+       clear_bit(vid, priv->vlan.active_vlans);
+
        mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_VID, vid);
 
        return 0;