net/mlx5e: HTB, move htb functions to a new file

Move htb related functions and data to a separated file for better
encapsulation.
Signed-off-by: Moshe Tal <moshet@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/Makefile

@@ -28,7 +28,8 @@ mlx5_core-$(CONFIG_MLX5_CORE_EN) += en/rqt.o en/tir.o en/rss.o en/rx_res.o \
 		en_selftest.o en/port.o en/monitor_stats.o en/health.o \
 		en/reporter_tx.o en/reporter_rx.o en/params.o en/xsk/pool.o \
 		en/xsk/setup.o en/xsk/rx.o en/xsk/tx.o en/devlink.o en/ptp.o \
-		en/qos.o en/trap.o en/fs_tt_redirect.o en/selq.o lib/crypto.o
+		en/qos.o en/htb.o en/trap.o en/fs_tt_redirect.o en/selq.o \
+		lib/crypto.o
 
 #
 # Netdev extra

drivers/net/ethernet/mellanox/mlx5/core/en/htb.h

+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#ifndef __MLX5E_EN_HTB_H_
+#define __MLX5E_EN_HTB_H_
+
+#include "qos.h"
+
+#define MLX5E_QOS_MAX_LEAF_NODES 256
+
+struct mlx5e_selq;
+struct mlx5e_htb;
+
+typedef int (*mlx5e_fp_htb_enumerate)(void *data, u16 qid, u32 hw_id);
+int mlx5e_htb_enumerate_leaves(struct mlx5e_htb *htb, mlx5e_fp_htb_enumerate callback, void *data);
+
+int mlx5e_htb_cur_leaf_nodes(struct mlx5e_htb *htb);
+
+/* TX datapath API */
+int mlx5e_htb_get_txq_by_classid(struct mlx5e_htb *htb, u16 classid);
+
+/* HTB TC handlers */
+
+int
+mlx5e_htb_leaf_alloc_queue(struct mlx5e_htb *htb, u16 classid,
+			   u32 parent_classid, u64 rate, u64 ceil,
+			   struct netlink_ext_ack *extack);
+int
+mlx5e_htb_leaf_to_inner(struct mlx5e_htb *htb, u16 classid, u16 child_classid,
+			u64 rate, u64 ceil, struct netlink_ext_ack *extack);
+int mlx5e_htb_leaf_del(struct mlx5e_htb *htb, u16 *classid,
+		       struct netlink_ext_ack *extack);
+int
+mlx5e_htb_leaf_del_last(struct mlx5e_htb *htb, u16 classid, bool force,
+			struct netlink_ext_ack *extack);
+int
+mlx5e_htb_node_modify(struct mlx5e_htb *htb, u16 classid, u64 rate, u64 ceil,
+		      struct netlink_ext_ack *extack);
+struct mlx5e_htb *mlx5e_htb_alloc(void);
+void mlx5e_htb_free(struct mlx5e_htb *htb);
+int mlx5e_htb_init(struct mlx5e_htb *htb, struct tc_htb_qopt_offload *htb_qopt,
+		   struct net_device *netdev, struct mlx5_core_dev *mdev,
+		   struct mlx5e_selq *selq, struct mlx5e_priv *priv);
+void mlx5e_htb_cleanup(struct mlx5e_htb *htb);
+#endif
+

drivers/net/ethernet/mellanox/mlx5/core/en/qos.h

@@ -6,7 +6,7 @@
 
 #include <linux/mlx5/driver.h>
 
-#define MLX5E_QOS_MAX_LEAF_NODES 256
+#define BYTES_IN_MBIT 125000
 
 struct mlx5e_priv;
 struct mlx5e_htb;
@@ -17,17 +17,27 @@ struct tc_htb_qopt_offload;
 int mlx5e_qos_bytes_rate_check(struct mlx5_core_dev *mdev, u64 nbytes);
 int mlx5e_qos_max_leaf_nodes(struct mlx5_core_dev *mdev);
 
-/* TX datapath API */
-int mlx5e_htb_get_txq_by_classid(struct mlx5e_htb *htb, u16 classid);
-
 /* SQ lifecycle */
+int mlx5e_open_qos_sq(struct mlx5e_priv *priv, struct mlx5e_channels *chs,
+		      u16 node_qid, u32 hw_id);
+int mlx5e_activate_qos_sq(void *data, u16 node_qid, u32 hw_id);
+void mlx5e_deactivate_qos_sq(struct mlx5e_priv *priv, u16 qid);
+void mlx5e_close_qos_sq(struct mlx5e_priv *priv, u16 qid);
+void mlx5e_reactivate_qos_sq(struct mlx5e_priv *priv, u16 qid, struct netdev_queue *txq);
+void mlx5e_reset_qdisc(struct net_device *dev, u16 qid);
+
 int mlx5e_qos_open_queues(struct mlx5e_priv *priv, struct mlx5e_channels *chs);
 void mlx5e_qos_activate_queues(struct mlx5e_priv *priv);
 void mlx5e_qos_deactivate_queues(struct mlx5e_channel *c);
+void mlx5e_qos_deactivate_all_queues(struct mlx5e_channels *chs);
 void mlx5e_qos_close_queues(struct mlx5e_channel *c);
+void mlx5e_qos_close_all_queues(struct mlx5e_channels *chs);
+int mlx5e_qos_alloc_queues(struct mlx5e_priv *priv, struct mlx5e_channels *chs);
+
+/* TX datapath API */
+u16 mlx5e_qid_from_qos(struct mlx5e_channels *chs, u16 qid);
 
 /* HTB API */
-int mlx5e_htb_cur_leaf_nodes(struct mlx5e_htb *htb);
 int mlx5e_htb_setup_tc(struct mlx5e_priv *priv, struct tc_htb_qopt_offload *htb);
 
 /* MQPRIO TX rate limit */

drivers/net/ethernet/mellanox/mlx5/core/en/selq.c

@@ -7,6 +7,7 @@
 #include <linux/rcupdate.h>
 #include "en.h"
 #include "en/ptp.h"
+#include "en/htb.h"
 
 struct mlx5e_selq_params {
 	unsigned int num_regular_queues;

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -63,6 +63,7 @@
 #include "en/devlink.h"
 #include "lib/mlx5.h"
 #include "en/ptp.h"
+#include "en/htb.h"
 #include "qos.h"
 #include "en/trap.h"