From: Roi Dayan <roid@nvidia.com>
Date: Sun, 15 Aug 2021 13:23:14 +0300
Subject: net/mlx5e: Move goto action checks into tc_action goto post parse op
Patch-mainline: v5.17-rc1
Git-commit: 35bb5242148fa16fd5b2f28b508e0c031e90c672
References: jsc#PED-1549

Move goto action checks from parse nic/fdb funcs into the tc action
infra goto post parse op.
While moving this part also use NL_SET_ERR_MSG_MOD() instead of
NL_SET_ERR_MSG().

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/goto.c |   35 +++++++++++++++
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c          |   19 --------
 2 files changed, 35 insertions(+), 19 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/goto.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/goto.c
@@ -81,7 +81,42 @@ tc_act_parse_goto(struct mlx5e_tc_act_pa
 	return 0;
 }
 
+static int
+tc_act_post_parse_goto(struct mlx5e_tc_act_parse_state *parse_state,
+		       struct mlx5e_priv *priv,
+		       struct mlx5_flow_attr *attr)
+{
+	struct mlx5e_tc_flow_parse_attr *parse_attr = attr->parse_attr;
+	struct netlink_ext_ack *extack = parse_state->extack;
+	struct mlx5e_tc_flow *flow = parse_state->flow;
+
+	if (!attr->dest_chain)
+		return 0;
+
+	if (parse_state->decap) {
+		/* It can be supported if we'll create a mapping for
+		 * the tunnel device only (without tunnel), and set
+		 * this tunnel id with this decap flow.
+		 *
+		 * On restore (miss), we'll just set this saved tunnel
+		 * device.
+		 */
+
+		NL_SET_ERR_MSG_MOD(extack, "Decap with goto isn't supported");
+		netdev_warn(priv->netdev, "Decap with goto isn't supported");
+		return -EOPNOTSUPP;
+	}
+
+	if (!mlx5e_is_eswitch_flow(flow) && parse_attr->mirred_ifindex[0]) {
+		NL_SET_ERR_MSG_MOD(extack, "Mirroring goto chain rules isn't supported");
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
 struct mlx5e_tc_act mlx5e_tc_act_goto = {
 	.can_offload = tc_act_can_offload_goto,
 	.parse_action = tc_act_parse_goto,
+	.post_parse = tc_act_post_parse_goto,
 };
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -3238,11 +3238,6 @@ parse_tc_nic_actions(struct mlx5e_priv *
 	if (err)
 		return err;
 
-	if (attr->dest_chain && parse_attr->mirred_ifindex[0]) {
-		NL_SET_ERR_MSG(extack, "Mirroring goto chain rules isn't supported");
-		return -EOPNOTSUPP;
-	}
-
 	err = actions_prepare_mod_hdr_actions(priv, flow, attr, hdrs, extack);
 	if (err)
 		return err;
@@ -3381,20 +3376,6 @@ parse_tc_fdb_actions(struct mlx5e_priv *
 	if (!actions_match_supported(priv, flow_action, parse_attr, flow, extack))
 		return -EOPNOTSUPP;
 
-	if (attr->dest_chain && parse_state->decap) {
-		/* It can be supported if we'll create a mapping for
-		 * the tunnel device only (without tunnel), and set
-		 * this tunnel id with this decap flow.
-		 *
-		 * On restore (miss), we'll just set this saved tunnel
-		 * device.
-		 */
-
-		NL_SET_ERR_MSG(extack, "Decap with goto isn't supported");
-		netdev_warn(priv->netdev, "Decap with goto isn't supported");
-		return -EOPNOTSUPP;
-	}
-
 	return 0;
 }