netdev - [net-next 09/15] net/mlx5: DR, Add helper to get backing dr table from a mlx5 flow table

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Message-Id: <20220311074031.645168-10-saeed@kernel.org>
Date:   Thu, 10 Mar 2022 23:40:25 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, Paul Blakey <paulb@...dia.com>,
        Oz Shlomo <ozsh@...dia.com>, Roi Dayan <roid@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 09/15] net/mlx5: DR, Add helper to get backing dr table from a mlx5 flow table

From: Paul Blakey <paulb@...dia.com>

If sw steering was used to create the table, dr steeering fs creates
a backing dr table for the mlx5 flow table.

Add helper to return this table so it can be used to create matchers and
add rules on it directly instead of passing via eswitch_offloads/fs_core
insertion.

Signed-off-by: Paul Blakey <paulb@...dia.com>
Reviewed-by: Oz Shlomo <ozsh@...dia.com>
Reviewed-by: Roi Dayan <roid@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c | 5 +++++
 drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h   | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c
index 8ca110643cc0..f5f2d356e75f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c
@@ -305,3 +305,8 @@ u32 mlx5dr_table_get_id(struct mlx5dr_table *tbl)
 {
 	return tbl->table_id;
 }
+
+struct mlx5dr_table *mlx5dr_table_get_from_fs_ft(struct mlx5_flow_table *ft)
+{
+	return ft->fs_dr_table.dr_table;
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h
index 03efbdf3fec3..ec5cbec0d455 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h
@@ -53,6 +53,9 @@ void mlx5dr_domain_set_peer(struct mlx5dr_domain *dmn,
 struct mlx5dr_table *
 mlx5dr_table_create(struct mlx5dr_domain *domain, u32 level, u32 flags);
 
+struct mlx5dr_table *
+mlx5dr_table_get_from_fs_ft(struct mlx5_flow_table *ft);
+
 int mlx5dr_table_destroy(struct mlx5dr_table *table);
 
 u32 mlx5dr_table_get_id(struct mlx5dr_table *table);
-- 
2.35.1