mlxsw: spectrum: Extend mlxsw_afa_ops for counter index and implement for Spectrum

Introduce extension of mlxsw_afa_ops in order to add/del mirroring and
implement the ops for Spectrum.
Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h

@@ -48,6 +48,10 @@ struct mlxsw_afa_ops {
 	void (*kvdl_fwd_entry_del)(void *priv, u32 kvdl_index);
 	int (*counter_index_get)(void *priv, unsigned int *p_counter_index);
 	void (*counter_index_put)(void *priv, unsigned int counter_index);
+	int (*mirror_add)(void *priv, u8 locol_in_port, u8 local_out_port,
+			  bool ingress, int *p_span_id);
+	void (*mirror_del)(void *priv, u8 locol_in_port, u8 local_out_port,
+			   bool ingress);
 };
 
 struct mlxsw_afa *mlxsw_afa_create(unsigned int max_acts_per_set,

drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_actions.c

@@ -124,6 +124,52 @@ mlxsw_sp_act_counter_index_put(void *priv, unsigned int counter_index)
 	mlxsw_sp_flow_counter_free(mlxsw_sp, counter_index);
 }
 
+static int
+mlxsw_sp_act_mirror_add(void *priv, u8 local_in_port, u8 local_out_port,
+			bool ingress, int *p_span_id)
+{
+	struct mlxsw_sp_port *in_port, *out_port;
+	struct mlxsw_sp_span_entry *span_entry;
+	struct mlxsw_sp *mlxsw_sp = priv;
+	enum mlxsw_sp_span_type type;
+	int err;
+
+	type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
+	out_port = mlxsw_sp->ports[local_out_port];
+	in_port = mlxsw_sp->ports[local_in_port];
+
+	err = mlxsw_sp_span_mirror_add(in_port, out_port, type, false);
+	if (err)
+		return err;
+
+	span_entry = mlxsw_sp_span_entry_find(mlxsw_sp, local_out_port);
+	if (!span_entry) {
+		err = -ENOENT;
+		goto err_span_entry_find;
+	}
+
+	*p_span_id = span_entry->id;
+	return 0;
+
+err_span_entry_find:
+	mlxsw_sp_span_mirror_del(in_port, local_out_port, type, false);
+	return err;
+}
+
+static void
+mlxsw_sp_act_mirror_del(void *priv, u8 local_in_port, u8 local_out_port,
+			bool ingress)
+{
+	struct mlxsw_sp *mlxsw_sp = priv;
+	struct mlxsw_sp_port *in_port;
+	enum mlxsw_sp_span_type type;
+
+	type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
+	in_port = mlxsw_sp->ports[local_in_port];
+
+	mlxsw_sp_span_mirror_del(in_port, local_out_port, type, false);
+}
+
 static const struct mlxsw_afa_ops mlxsw_sp_act_afa_ops = {
 	.kvdl_set_add		= mlxsw_sp_act_kvdl_set_add,
 	.kvdl_set_del		= mlxsw_sp_act_kvdl_set_del,
@@ -131,6 +177,8 @@ static const struct mlxsw_afa_ops mlxsw_sp_act_afa_ops = {
 	.kvdl_fwd_entry_del	= mlxsw_sp_act_kvdl_fwd_entry_del,
 	.counter_index_get	= mlxsw_sp_act_counter_index_get,
 	.counter_index_put	= mlxsw_sp_act_counter_index_put,
+	.mirror_add		= mlxsw_sp_act_mirror_add,
+	.mirror_del		= mlxsw_sp_act_mirror_del,
 };
 
 int mlxsw_sp_afa_init(struct mlxsw_sp *mlxsw_sp)