net/mlx5e: TC, store tc action cookies per attr

The tc parse action phase translates the tc actions to mlx5 flow
attributes data structure that is used during the flow offload phase.
Currently, the flow offload stage instantiates hw counters while
associating them to flow cookie. However, flows with branching
actions are required to associate a hardware counter with its action
cookies.

Store the parsed tc action cookies on the flow attribute.
Use the list of cookies in the next patch to associate a tc action cookie
with its allocated hw counter.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -3786,6 +3786,7 @@ mlx5e_clone_flow_attr_for_post_act(struct mlx5_flow_attr *attr,
 	parse_attr->filter_dev = attr->parse_attr->filter_dev;
 	attr2->action = 0;
 	attr2->counter = NULL;
+	attr->tc_act_cookies_count = 0;
 	attr2->flags = 0;
 	attr2->parse_attr = parse_attr;
 	attr2->dest_chain = 0;
@@ -4149,6 +4150,8 @@ parse_tc_actions(struct mlx5e_tc_act_parse_state *parse_state,
 			goto out_free;
 
 		parse_state->actions |= attr->action;
+		if (!tc_act->stats_action)
+			attr->tc_act_cookies[attr->tc_act_cookies_count++] = act->act_cookie;
 
 		/* Split attr for multi table act if not the last act. */
 		if (jump_state.jump_target ||

drivers/net/ethernet/mellanox/mlx5/core/en_tc.h

@@ -69,6 +69,7 @@ struct mlx5_nic_flow_attr {
 
 struct mlx5_flow_attr {
 	u32 action;
+	unsigned long tc_act_cookies[TCA_ACT_MAX_PRIO];
 	struct mlx5_fc *counter;
 	struct mlx5_modify_hdr *modify_hdr;
 	struct mlx5e_mod_hdr_handle *mh; /* attached mod header instance */
@@ -79,6 +80,7 @@ struct mlx5_flow_attr {
 	struct mlx5e_tc_flow_parse_attr *parse_attr;
 	u32 chain;
 	u16 prio;
+	u16 tc_act_cookies_count;
 	u32 dest_chain;
 	struct mlx5_flow_table *ft;
 	struct mlx5_flow_table *dest_ft;