1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_dmfs.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_dmfs.c
new file mode 100644
index 000000000000..ae4f55be48ce
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/ct_fs_dmfs.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. */
+
+#include "en_tc.h"
+#include "en/tc_ct.h"
+#include "en/tc/ct_fs.h"
+
+#define ct_dbg(fmt, args...)\
+	netdev_dbg(fs->netdev, "ct_fs_dmfs debug: " fmt "\n", ##args)
+
+struct mlx5_ct_fs_dmfs_rule {
+	struct mlx5_ct_fs_rule fs_rule;
+	struct mlx5_flow_handle *rule;
+	struct mlx5_flow_attr *attr;
+};
+
+static int
+mlx5_ct_fs_dmfs_init(struct mlx5_ct_fs *fs, struct mlx5_flow_table *ct,
+		     struct mlx5_flow_table *ct_nat, struct mlx5_flow_table *post_ct)
+{
+	return 0;
+}
+
+static void
+mlx5_ct_fs_dmfs_destroy(struct mlx5_ct_fs *fs)
+{
+}
+
+static struct mlx5_ct_fs_rule *
+mlx5_ct_fs_dmfs_ct_rule_add(struct mlx5_ct_fs *fs, struct mlx5_flow_spec *spec,
+			    struct mlx5_flow_attr *attr, struct flow_rule *flow_rule)
+{
+	struct mlx5e_priv *priv = netdev_priv(fs->netdev);
+	struct mlx5_ct_fs_dmfs_rule *dmfs_rule;
+	int err;
+
+	dmfs_rule = kzalloc(sizeof(*dmfs_rule), GFP_KERNEL);
+	if (!dmfs_rule)
+		return ERR_PTR(-ENOMEM);
+
+	dmfs_rule->rule = mlx5_tc_rule_insert(priv, spec, attr);
+	if (IS_ERR(dmfs_rule->rule)) {
+		err = PTR_ERR(dmfs_rule->rule);
+		ct_dbg("Failed to add ct entry fs rule");
+		goto err_insert;
+	}
+
+	dmfs_rule->attr = attr;
+
+	return &dmfs_rule->fs_rule;
+
+err_insert:
+	kfree(dmfs_rule);
+	return ERR_PTR(err);
+}
+
+static void
+mlx5_ct_fs_dmfs_ct_rule_del(struct mlx5_ct_fs *fs, struct mlx5_ct_fs_rule *fs_rule)
+{
+	struct mlx5_ct_fs_dmfs_rule *dmfs_rule = container_of(fs_rule,
+							      struct mlx5_ct_fs_dmfs_rule,
+							      fs_rule);
+
+	mlx5_tc_rule_delete(netdev_priv(fs->netdev), dmfs_rule->rule, dmfs_rule->attr);
+	kfree(dmfs_rule);
+}
+
+static struct mlx5_ct_fs_ops dmfs_ops = {
+	.ct_rule_add = mlx5_ct_fs_dmfs_ct_rule_add,
+	.ct_rule_del = mlx5_ct_fs_dmfs_ct_rule_del,
+
+	.init = mlx5_ct_fs_dmfs_init,
+	.destroy = mlx5_ct_fs_dmfs_destroy,
+};
+
+struct mlx5_ct_fs_ops *mlx5_ct_fs_dmfs_ops_get(void)
+{
+	return &dmfs_ops;
+}