net/mlx5e: Convert RSS to a dedicated object

Code related to RSS is now encapsulated into a dedicated object and put
into new files en/rss.{c,h}. All usages are converted.
Signed-off-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

@@ -22,13 +22,13 @@ mlx5_core-y :=	main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \
 #
 # Netdev basic
 #
-mlx5_core-$(CONFIG_MLX5_CORE_EN) += en_main.o en_common.o en_fs.o en_ethtool.o \
+mlx5_core-$(CONFIG_MLX5_CORE_EN) += en/rqt.o en/tir.o en/rss.o en/rx_res.o \
+		en/channels.o en_main.o en_common.o en_fs.o en_ethtool.o \
 		en_tx.o en_rx.o en_dim.o en_txrx.o en/xdp.o en_stats.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/rqt.o en/tir.o \
-		en/rx_res.o en/channels.o
+		en/qos.o en/trap.o en/fs_tt_redirect.o
 
 #
 # Netdev extra

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

+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. */
+
+#ifndef __MLX5_EN_RSS_H__
+#define __MLX5_EN_RSS_H__
+
+#include "rqt.h"
+#include "tir.h"
+#include "fs.h"
+
+struct mlx5e_rss_params_traffic_type
+mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt);
+
+struct mlx5e_rss;
+
+struct mlx5e_rss *mlx5e_rss_alloc(void);
+void mlx5e_rss_free(struct mlx5e_rss *rss);
+int mlx5e_rss_init(struct mlx5e_rss *rss, struct mlx5_core_dev *mdev,
+		   bool inner_ft_support, u32 drop_rqn,
+		   const struct mlx5e_lro_param *init_lro_param);
+void mlx5e_rss_cleanup(struct mlx5e_rss *rss);
+
+u32 mlx5e_rss_get_tirn(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
+		       bool inner);
+void mlx5e_rss_enable(struct mlx5e_rss *rss, u32 *rqns, unsigned int num_rqns);
+void mlx5e_rss_disable(struct mlx5e_rss *rss);
+
+int mlx5e_rss_lro_set_param(struct mlx5e_rss *rss, struct mlx5e_lro_param *lro_param);
+int mlx5e_rss_get_rxfh(struct mlx5e_rss *rss, u32 *indir, u8 *key, u8 *hfunc);
+int mlx5e_rss_set_rxfh(struct mlx5e_rss *rss, const u32 *indir,
+		       const u8 *key, const u8 *hfunc,
+		       u32 *rqns, unsigned int num_rqns);
+struct mlx5e_rss_params_hash mlx5e_rss_get_hash(struct mlx5e_rss *rss);
+u8 mlx5e_rss_get_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt);
+int mlx5e_rss_set_hash_fields(struct mlx5e_rss *rss, enum mlx5_traffic_types tt,
+			      u8 rx_hash_fields);
+void mlx5e_rss_set_indir_uniform(struct mlx5e_rss *rss, unsigned int nch);
+#endif /* __MLX5_EN_RSS_H__ */

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

@@ -8,6 +8,7 @@
 #include "rqt.h"
 #include "tir.h"
 #include "fs.h"
+#include "rss.h"
 
 struct mlx5e_rx_res;
 
@@ -20,9 +21,6 @@ enum mlx5e_rx_res_features {
 	MLX5E_RX_RES_FEATURE_PTP = BIT(2),
 };
 
-struct mlx5e_rss_params_traffic_type
-mlx5e_rss_get_default_tt_config(enum mlx5_traffic_types tt);
-
 /* Setup */
 struct mlx5e_rx_res *mlx5e_rx_res_alloc(void);
 int mlx5e_rx_res_init(struct mlx5e_rx_res *res, struct mlx5_core_dev *mdev,
@@ -50,8 +48,6 @@ int mlx5e_rx_res_xsk_activate(struct mlx5e_rx_res *res, struct mlx5e_channels *c
 int mlx5e_rx_res_xsk_deactivate(struct mlx5e_rx_res *res, unsigned int ix);
 
 /* Configuration API */
-struct mlx5e_rss_params_traffic_type
-mlx5e_rx_res_rss_get_current_tt_config(struct mlx5e_rx_res *res, enum mlx5_traffic_types tt);
 void mlx5e_rx_res_rss_set_indir_uniform(struct mlx5e_rx_res *res, unsigned int nch);
 int mlx5e_rx_res_rss_get_rxfh(struct mlx5e_rx_res *res, u32 *indir, u8 *key, u8 *hfunc);
 int mlx5e_rx_res_rss_set_rxfh(struct mlx5e_rx_res *res, const u32 *indir,