mlxsw: spectrum_acl: Track ingress and egress block bindings

Count the number of ingress and egress block bindings. Use the egress
counter in "is_egress_bound" helper. Add couple of helpers to check
ingress and mixed bound.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 23 insertions, 6 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 9335f6a..79dc7b5 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -665,6 +665,8 @@ struct mlxsw_sp_acl_block {
 	unsigned int rule_count;
 	unsigned int disable_count;
 	unsigned int egress_blocker_rule_count;
+	unsigned int ingress_binding_count;
+	unsigned int egress_binding_count;
 	struct net *net;
 };
 
@@ -688,6 +690,8 @@ int mlxsw_sp_acl_block_unbind(struct mlxsw_sp *mlxsw_sp,
 			      struct mlxsw_sp_port *mlxsw_sp_port,
 			      bool ingress);
 bool mlxsw_sp_acl_block_is_egress_bound(const struct mlxsw_sp_acl_block *block);
+bool mlxsw_sp_acl_block_is_ingress_bound(const struct mlxsw_sp_acl_block *block);
+bool mlxsw_sp_acl_block_is_mixed_bound(const struct mlxsw_sp_acl_block *block);
 struct mlxsw_sp_acl_ruleset *
 mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp *mlxsw_sp,
 			    struct mlxsw_sp_acl_block *block, u32 chain_index,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
index 7b460c0..3b455c6 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
@@ -124,13 +124,17 @@ bool mlxsw_sp_acl_block_disabled(const struct mlxsw_sp_acl_block *block)
 
 bool mlxsw_sp_acl_block_is_egress_bound(const struct mlxsw_sp_acl_block *block)
 {
-	struct mlxsw_sp_acl_block_binding *binding;
+	return block->egress_binding_count;
+}
 
-	list_for_each_entry(binding, &block->binding_list, list) {
-		if (!binding->ingress)
-			return true;
-	}
-	return false;
+bool mlxsw_sp_acl_block_is_ingress_bound(const struct mlxsw_sp_acl_block *block)
+{
+	return block->ingress_binding_count;
+}
+
+bool mlxsw_sp_acl_block_is_mixed_bound(const struct mlxsw_sp_acl_block *block)
+{
+	return block->ingress_binding_count && block->egress_binding_count;
 }
 
 static bool
@@ -269,6 +273,10 @@ int mlxsw_sp_acl_block_bind(struct mlxsw_sp *mlxsw_sp,
 			goto err_ruleset_bind;
 	}
 
+	if (ingress)
+		block->ingress_binding_count++;
+	else
+		block->egress_binding_count++;
 	list_add(&binding->list, &block->binding_list);
 	return 0;
 
@@ -290,6 +298,11 @@ int mlxsw_sp_acl_block_unbind(struct mlxsw_sp *mlxsw_sp,
 
 	list_del(&binding->list);
 
+	if (ingress)
+		block->ingress_binding_count--;
+	else
+		block->egress_binding_count--;
+
 	if (mlxsw_sp_acl_ruleset_block_bound(block))
 		mlxsw_sp_acl_ruleset_unbind(mlxsw_sp, block, binding);