netdev - [net-next 06/15] net/mlx5e: TC, set control params for branching actions

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Date:   Sat,  3 Dec 2022 14:13:28 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>, Oz Shlomo <ozsh@...dia.com>,
        Roi Dayan <roid@...dia.com>
Subject: [net-next 06/15] net/mlx5e: TC, set control params for branching actions

From: Oz Shlomo <ozsh@...dia.com>

Extend the act tc api to set the branch control params aligning with
the police conform/exceed use case.

Signed-off-by: Oz Shlomo <ozsh@...dia.com>
Reviewed-by: Roi Dayan <roid@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../ethernet/mellanox/mlx5/core/en/tc/act/act.h    |  9 +++++++++
 .../ethernet/mellanox/mlx5/core/en/tc/act/police.c | 14 ++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h
index 8ede44902284..8346557eeaf6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h
@@ -32,6 +32,11 @@ struct mlx5e_tc_act_parse_state {
 	struct mlx5_tc_ct_priv *ct_priv;
 };
 
+struct mlx5e_tc_act_branch_ctrl {
+	enum flow_action_id act_id;
+	u32 extval;
+};
+
 struct mlx5e_tc_act {
 	bool (*can_offload)(struct mlx5e_tc_act_parse_state *parse_state,
 			    const struct flow_action_entry *act,
@@ -61,6 +66,10 @@ struct mlx5e_tc_act {
 	int (*stats_action)(struct mlx5e_priv *priv,
 			    struct flow_offload_action *fl_act);
 
+	bool (*get_branch_ctrl)(const struct flow_action_entry *act,
+				struct mlx5e_tc_act_branch_ctrl *cond_true,
+				struct mlx5e_tc_act_branch_ctrl *cond_false);
+
 	bool is_terminating_action;
 };
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/police.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/police.c
index c8e5ca65bb6e..81aa4185c64a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/police.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/police.c
@@ -147,6 +147,19 @@ tc_act_police_stats(struct mlx5e_priv *priv,
 	return 0;
 }
 
+static bool
+tc_act_police_get_branch_ctrl(const struct flow_action_entry *act,
+			      struct mlx5e_tc_act_branch_ctrl *cond_true,
+			      struct mlx5e_tc_act_branch_ctrl *cond_false)
+{
+	cond_true->act_id = act->police.notexceed.act_id;
+	cond_true->extval = act->police.notexceed.extval;
+
+	cond_false->act_id = act->police.exceed.act_id;
+	cond_false->extval = act->police.exceed.extval;
+	return true;
+}
+
 struct mlx5e_tc_act mlx5e_tc_act_police = {
 	.can_offload = tc_act_can_offload_police,
 	.parse_action = tc_act_parse_police,
@@ -154,4 +167,5 @@ struct mlx5e_tc_act mlx5e_tc_act_police = {
 	.offload_action = tc_act_police_offload,
 	.destroy_action = tc_act_police_destroy,
 	.stats_action = tc_act_police_stats,
+	.get_branch_ctrl = tc_act_police_get_branch_ctrl,
 };
-- 
2.38.1