net/mlx5e: Extract neigh-specific code from en_rep.c to rep/neigh.c

As a preparation for introducing new kconfig option that controls
compilation of all TC offloads code in mlx5, extract neigh-specific code
from en_rep.c to standalone file. This allows easily compiling out the code
by only including new source in make file when corresponding kconfig is
enabled instead of adding multiple ifdef blocks to en_rep.
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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

@@ -33,7 +33,7 @@ mlx5_core-$(CONFIG_MLX5_CORE_EN) += en_main.o en_common.o en_fs.o en_ethtool.o \
 mlx5_core-$(CONFIG_MLX5_EN_ARFS)     += en_arfs.o
 mlx5_core-$(CONFIG_MLX5_EN_RXNFC)    += en_fs_ethtool.o
 mlx5_core-$(CONFIG_MLX5_CORE_EN_DCB) += en_dcbnl.o en/port_buffer.o
-mlx5_core-$(CONFIG_MLX5_ESWITCH)     += en_rep.o en_tc.o en/rep/tc.o en/tc_tun.o lib/port_tun.o \
+mlx5_core-$(CONFIG_MLX5_ESWITCH)     += en_rep.o en_tc.o en/rep/tc.o en/rep/neigh.o en/tc_tun.o lib/port_tun.o \
 					lag_mp.o \
 					lib/geneve.o en/mapping.o en/tc_tun_vxlan.o en/tc_tun_gre.o \
 					en/tc_tun_geneve.o diag/en_tc_tracepoint.o

drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.h

+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2020 Mellanox Technologies. */
+
+#ifndef __MLX5_EN_REP_NEIGH__
+#define __MLX5_EN_REP_NEIGH__
+
+#include "en.h"
+#include "en_rep.h"
+
+int mlx5e_rep_neigh_init(struct mlx5e_rep_priv *rpriv);
+void mlx5e_rep_neigh_cleanup(struct mlx5e_rep_priv *rpriv);
+
+struct mlx5e_neigh_hash_entry *
+mlx5e_rep_neigh_entry_lookup(struct mlx5e_priv *priv,
+			     struct mlx5e_neigh *m_neigh);
+int mlx5e_rep_neigh_entry_create(struct mlx5e_priv *priv,
+				 struct mlx5e_encap_entry *e,
+				 struct mlx5e_neigh_hash_entry **nhe);
+void mlx5e_rep_neigh_entry_release(struct mlx5e_neigh_hash_entry *nhe);
+
+void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv);
+
+#endif /* __MLX5_EN_REP_NEIGH__ */

drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c

@@ -9,6 +9,7 @@
 #include <linux/workqueue.h>
 #include <linux/spinlock.h>
 #include "tc.h"
+#include "neigh.h"
 #include "en_rep.h"
 #include "eswitch.h"
 #include "esw/chains.h"

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

@@ -7,6 +7,7 @@
 #include "en/tc_tun.h"
 #include "en_tc.h"
 #include "rep/tc.h"
+#include "rep/neigh.h"
 
 struct mlx5e_tc_tunnel *mlx5e_get_tc_tun(struct net_device *tunnel_dev)
 {

drivers/net/ethernet/mellanox/mlx5/core/en_rep.h

@@ -208,14 +208,6 @@ void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv);
 bool mlx5e_eswitch_rep(struct net_device *netdev);
 bool mlx5e_eswitch_uplink_rep(struct net_device *netdev);
 
-struct mlx5e_neigh_hash_entry *
-mlx5e_rep_neigh_entry_lookup(struct mlx5e_priv *priv,
-			     struct mlx5e_neigh *m_neigh);
-int mlx5e_rep_neigh_entry_create(struct mlx5e_priv *priv,
-				 struct mlx5e_encap_entry *e,
-				 struct mlx5e_neigh_hash_entry **nhe);
-void mlx5e_rep_neigh_entry_release(struct mlx5e_neigh_hash_entry *nhe);
-
 #else /* CONFIG_MLX5_ESWITCH */
 static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; }
 static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; }

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

@@ -4777,9 +4777,3 @@ void mlx5e_tc_reoffload_flows_work(struct work_struct *work)
 	}
 	mutex_unlock(&rpriv->unready_flows_lock);
 }
-
-void mlx5_tc_rep_post_napi_receive(struct mlx5e_tc_update_priv *tc_priv)
-{
-	if (tc_priv->tun_dev)
-		dev_put(tc_priv->tun_dev);
-}