86452f81d2
The translation table (global, local) is usually the part of batman-adv which has the most dynamical allocated objects. Most of them (tt_local_entry, tt_global_entry, tt_orig_list_entry, tt_change_node, tt_req_node, tt_roam_node) are equally sized. So it makes sense to have them allocated from a kmem_cache for each type. This approach allowed a small wireless router (TP-Link TL-841NDv8; SLUB allocator) to store 34% more translation table entries compared to the current implementation. [1] https://open-mesh.org/projects/batman-adv/wiki/Kmalloc-kmem-cache-tests Reported-by: Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
66 lines
2.7 KiB
C
66 lines
2.7 KiB
C
/* Copyright (C) 2007-2016 B.A.T.M.A.N. contributors:
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*
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* Marek Lindner, Simon Wunderlich, Antonio Quartulli
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
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#define _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
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#include "main.h"
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#include <linux/types.h>
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struct net_device;
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struct seq_file;
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int batadv_tt_init(struct batadv_priv *bat_priv);
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bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
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unsigned short vid, int ifindex, u32 mark);
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u16 batadv_tt_local_remove(struct batadv_priv *bat_priv,
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const u8 *addr, unsigned short vid,
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const char *message, bool roaming);
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int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset);
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int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset);
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void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
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struct batadv_orig_node *orig_node,
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s32 match_vid, const char *message);
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int batadv_tt_global_hash_count(struct batadv_priv *bat_priv,
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const u8 *addr, unsigned short vid);
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struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
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const u8 *src, const u8 *addr,
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unsigned short vid);
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void batadv_tt_free(struct batadv_priv *bat_priv);
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bool batadv_is_my_client(struct batadv_priv *bat_priv, const u8 *addr,
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unsigned short vid);
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bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, u8 *src, u8 *dst,
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unsigned short vid);
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void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv);
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bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
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u8 *addr, unsigned short vid);
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bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
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u8 *addr, unsigned short vid);
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void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface);
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bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
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struct batadv_orig_node *orig_node,
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const unsigned char *addr,
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unsigned short vid);
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bool batadv_tt_global_is_isolated(struct batadv_priv *bat_priv,
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const u8 *addr, unsigned short vid);
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int batadv_tt_cache_init(void);
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void batadv_tt_cache_destroy(void);
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#endif /* _NET_BATMAN_ADV_TRANSLATION_TABLE_H_ */
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