net/mlx5: Add multi dest support

Currently when calling mlx5_add_flow_rule we accept
only one flow destination, this commit allows to pass
multiple destinations.

This change forces us to change the return structure to a more
flexible one. We introduce a flow handle (struct mlx5_flow_handle),
it holds internally the number for rules created and holds an array
where each cell points the to a flow rule.

From the consumers (of mlx5_add_flow_rule) point of view this
change is only cosmetic and requires only to change the type
of the returned value they store.

From the core point of view, we now need to use a loop when
allocating and deleting rules (e.g given to us a flow handler).

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

1 files changed, 10 insertions, 9 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
index d17c24227900..cf52c06377f2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
@@ -36,7 +36,7 @@
 struct mlx5e_ethtool_rule {
 	struct list_head             list;
 	struct ethtool_rx_flow_spec  flow_spec;
-	struct mlx5_flow_rule        *rule;
+	struct mlx5_flow_handle	     *rule;
 	struct mlx5e_ethtool_table   *eth_ft;
 };
 
@@ -284,13 +284,14 @@ static bool outer_header_zero(u32 *match_criteria)
 						  size - 1);
 }
 
-static struct mlx5_flow_rule *add_ethtool_flow_rule(struct mlx5e_priv *priv,
-						    struct mlx5_flow_table *ft,
-						    struct ethtool_rx_flow_spec *fs)
+static struct mlx5_flow_handle *
+add_ethtool_flow_rule(struct mlx5e_priv *priv,
+		      struct mlx5_flow_table *ft,
+		      struct ethtool_rx_flow_spec *fs)
 {
 	struct mlx5_flow_destination *dst = NULL;
 	struct mlx5_flow_spec *spec;
-	struct mlx5_flow_rule *rule;
+	struct mlx5_flow_handle *rule;
 	int err = 0;
 	u32 action;
 
@@ -317,8 +318,8 @@ static struct mlx5_flow_rule *add_ethtool_flow_rule(struct mlx5e_priv *priv,
 	}
 
 	spec->match_criteria_enable = (!outer_header_zero(spec->match_criteria));
-	rule = mlx5_add_flow_rule(ft, spec, action,
-				  MLX5_FS_DEFAULT_FLOW_TAG, dst);
+	rule = mlx5_add_flow_rules(ft, spec, action,
+				   MLX5_FS_DEFAULT_FLOW_TAG, dst, 1);
 	if (IS_ERR(rule)) {
 		err = PTR_ERR(rule);
 		netdev_err(priv->netdev, "%s: failed to add ethtool steering rule: %d\n",
@@ -335,7 +336,7 @@ static void del_ethtool_rule(struct mlx5e_priv *priv,
 			     struct mlx5e_ethtool_rule *eth_rule)
 {
 	if (eth_rule->rule)
-		mlx5_del_flow_rule(eth_rule->rule);
+		mlx5_del_flow_rules(eth_rule->rule);
 	list_del(&eth_rule->list);
 	priv->fs.ethtool.tot_num_rules--;
 	put_flow_table(eth_rule->eth_ft);
@@ -475,7 +476,7 @@ int mlx5e_ethtool_flow_replace(struct mlx5e_priv *priv,
 {
 	struct mlx5e_ethtool_table *eth_ft;
 	struct mlx5e_ethtool_rule *eth_rule;
-	struct mlx5_flow_rule *rule;
+	struct mlx5_flow_handle *rule;
 	int num_tuples;
 	int err;