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Commit 97869060 authored by Antonio Quartulli's avatar Antonio Quartulli Committed by Antonio Quartulli
Browse files

batman-adv: B.A.T.M.A.N. V - implement neighbor comparison API calls 



Signed-off-by: default avatarAntonio Quartulli <antonio@open-mesh.com>
Signed-off-by: default avatarMarek Lindner <mareklindner@neomailbox.ch>
parent 8d2d499e

net/batman-adv/bat_v.c

+38 −0
Original line number Diff line number Diff line
@@ -19,12 +19,15 @@ 
#include "main.h"



#include <linux/atomic.h>

#include <linux/bug.h>

#include <linux/cache.h>

#include <linux/init.h>

#include <linux/types.h>

#include <linux/workqueue.h>



#include "bat_v_elp.h"

#include "bat_v_ogm.h"

#include "originator.h"

#include "packet.h"



static int batadv_v_iface_enable(struct batadv_hard_iface *hard_iface)
@@ -78,6 +81,39 @@ static void batadv_v_ogm_emit(struct batadv_forw_packet *forw_packet) 
{

}



static int batadv_v_neigh_cmp(struct batadv_neigh_node *neigh1,

			      struct batadv_hard_iface *if_outgoing1,

			      struct batadv_neigh_node *neigh2,

			      struct batadv_hard_iface *if_outgoing2)

{

	struct batadv_neigh_ifinfo *ifinfo1, *ifinfo2;



	ifinfo1 = batadv_neigh_ifinfo_get(neigh1, if_outgoing1);

	ifinfo2 = batadv_neigh_ifinfo_get(neigh2, if_outgoing2);



	if (WARN_ON(!ifinfo1 || !ifinfo2))

		return 0;



	return ifinfo1->bat_v.throughput - ifinfo2->bat_v.throughput;

}



static bool batadv_v_neigh_is_sob(struct batadv_neigh_node *neigh1,

				  struct batadv_hard_iface *if_outgoing1,

				  struct batadv_neigh_node *neigh2,

				  struct batadv_hard_iface *if_outgoing2)

{

	struct batadv_neigh_ifinfo *ifinfo1, *ifinfo2;

	u32 threshold;



	ifinfo1 = batadv_neigh_ifinfo_get(neigh1, if_outgoing1);

	ifinfo2 = batadv_neigh_ifinfo_get(neigh2, if_outgoing2);



	threshold = ifinfo1->bat_v.throughput / 4;

	threshold = ifinfo1->bat_v.throughput - threshold;



	return ifinfo2->bat_v.throughput > threshold;

}



static struct batadv_algo_ops batadv_batman_v __read_mostly = {

	.name = "BATMAN_V",

	.bat_iface_enable = batadv_v_iface_enable,
@@ -87,6 +123,8 @@ static struct batadv_algo_ops batadv_batman_v __read_mostly = { 
	.bat_hardif_neigh_init = batadv_v_hardif_neigh_init,

	.bat_ogm_emit = batadv_v_ogm_emit,

	.bat_ogm_schedule = batadv_v_ogm_schedule,

	.bat_neigh_cmp = batadv_v_neigh_cmp,

	.bat_neigh_is_similar_or_better = batadv_v_neigh_is_sob,

};



/**