net/mlx5: Add direct rule fs_cmd implementation

Add support to create flow steering objects
via direct rule API (SW steering).
New layer is added - fs_dr, this layer translates the command that
fs_core sends to the FW into direct rule API. In case that direct
rule is not supported in some feature then -EOPNOTSUPP is
returned.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/fs_dr.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/fs_dr.h
new file mode 100644
index 000000000000..1fb185d6ac7f
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/fs_dr.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+ * Copyright (c) 2019 Mellanox Technologies
+ */
+
+#ifndef _MLX5_FS_DR_
+#define _MLX5_FS_DR_
+
+#include "mlx5dr.h"
+
+struct mlx5_flow_root_namespace;
+struct fs_fte;
+
+struct mlx5_fs_dr_action {
+	struct mlx5dr_action *dr_action;
+};
+
+struct mlx5_fs_dr_ns {
+	struct mlx5_dr_ns *dr_ns;
+};
+
+struct mlx5_fs_dr_rule {
+	struct mlx5dr_rule    *dr_rule;
+	/* Only actions created by fs_dr */
+	struct mlx5dr_action  **dr_actions;
+	int                      num_actions;
+};
+
+struct mlx5_fs_dr_domain {
+	struct mlx5dr_domain	*dr_domain;
+};
+
+struct mlx5_fs_dr_matcher {
+	struct mlx5dr_matcher *dr_matcher;
+};
+
+struct mlx5_fs_dr_table {
+	struct mlx5dr_table  *dr_table;
+	struct mlx5dr_action *miss_action;
+};
+
+#ifdef CONFIG_MLX5_SW_STEERING
+
+bool mlx5_fs_dr_is_supported(struct mlx5_core_dev *dev);
+
+const struct mlx5_flow_cmds *mlx5_fs_cmd_get_dr_cmds(void);
+
+#else
+
+static inline const struct mlx5_flow_cmds *mlx5_fs_cmd_get_dr_cmds(void)
+{
+	return NULL;
+}
+
+static inline bool mlx5_fs_dr_is_supported(struct mlx5_core_dev *dev)
+{
+	return false;
+}
+
+#endif /* CONFIG_MLX5_SW_STEERING */
+#endif