1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.h b/drivers/net/ethernet/mellanox/mlx5/core/lag.h
new file mode 100644
index 000000000000..1dea0b1c9826
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2019 Mellanox Technologies. */
+
+#ifndef __MLX5_LAG_H__
+#define __MLX5_LAG_H__
+
+#include "mlx5_core.h"
+#include "lag_mp.h"
+
+enum {
+	MLX5_LAG_FLAG_ROCE   = 1 << 0,
+	MLX5_LAG_FLAG_SRIOV  = 1 << 1,
+	MLX5_LAG_FLAG_MULTIPATH = 1 << 2,
+};
+
+#define MLX5_LAG_MODE_FLAGS (MLX5_LAG_FLAG_ROCE | MLX5_LAG_FLAG_SRIOV |\
+			     MLX5_LAG_FLAG_MULTIPATH)
+
+struct lag_func {
+	struct mlx5_core_dev *dev;
+	struct net_device    *netdev;
+};
+
+/* Used for collection of netdev event info. */
+struct lag_tracker {
+	enum   netdev_lag_tx_type           tx_type;
+	struct netdev_lag_lower_state_info  netdev_state[MLX5_MAX_PORTS];
+	unsigned int is_bonded:1;
+};
+
+/* LAG data of a ConnectX card.
+ * It serves both its phys functions.
+ */
+struct mlx5_lag {
+	u8                        flags;
+	u8                        v2p_map[MLX5_MAX_PORTS];
+	struct lag_func           pf[MLX5_MAX_PORTS];
+	struct lag_tracker        tracker;
+	struct workqueue_struct   *wq;
+	struct delayed_work       bond_work;
+	struct notifier_block     nb;
+	struct lag_mp             lag_mp;
+};
+
+static inline struct mlx5_lag *
+mlx5_lag_dev_get(struct mlx5_core_dev *dev)
+{
+	return dev->priv.lag;
+}
+
+static inline bool
+__mlx5_lag_is_active(struct mlx5_lag *ldev)
+{
+	return !!(ldev->flags & MLX5_LAG_MODE_FLAGS);
+}
+
+void mlx5_modify_lag(struct mlx5_lag *ldev,
+		     struct lag_tracker *tracker);
+int mlx5_activate_lag(struct mlx5_lag *ldev,
+		      struct lag_tracker *tracker,
+		      u8 flags);
+int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev,
+				struct net_device *ndev);
+
+#endif /* __MLX5_LAG_H__ */