[B.A.T.M.A.N.] [PATCHv5 6/9] batman-adv: adapt bonding to use the new API functions

Antonio Quartulli
2013-08-28T20:54:48Z

bat_iv_ogm.c | 2 +-
routing.c | 42 +++++++++++++++++++++++++++++-------------
routing.h | 3 ++-
3 files changed, 32 insertions(+), 15 deletions(-)

diff --git a/bat_iv_ogm.c b/bat_iv_ogm.c
index a2091af..d033ba4 100644
--- a/bat_iv_ogm.c
+++ b/bat_iv_ogm.c
@@ -843,7 +843,7 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
neigh_node->last_ttl = batadv_ogm_packet->header.ttl;
}

- batadv_bonding_candidate_add(orig_node, neigh_node);
+ batadv_bonding_candidate_add(bat_priv, orig_node, neigh_node);

/* if this neighbor already is our next hop there is nothing
* to change
diff --git a/routing.c b/routing.c
index 513fdef..4a7934f 100644
--- a/routing.c
+++ b/routing.c
@@ -115,11 +115,21 @@ out:
return;
}

-void batadv_bonding_candidate_add(struct batadv_orig_node *orig_node,
+/**
+ * batadv_bonding_candidate_add - consider a new link for bonding mode towards
+ * the given originator
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: the target node
+ * @neigh_node: the neighbor representing the new link to consider for bonding
+ * mode
+ */
+void batadv_bonding_candidate_add(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
struct batadv_neigh_node *neigh_node)
{
+ struct batadv_algo_ops *bao = bat_priv->bat_algo_ops;
struct batadv_neigh_node *tmp_neigh_node, *router = NULL;
- uint8_t interference_candidate = 0, tq;
+ uint8_t interference_candidate = 0;

spin_lock_bh(&orig_node->neigh_list_lock);

@@ -134,8 +144,7 @@ void batadv_bonding_candidate_add(struct batadv_orig_node *orig_node,

/* ... and is good enough to be considered */
- tq = router->bat_iv.tq_avg - BATADV_BONDING_TQ_THRESHOLD;
- if (neigh_node->bat_iv.tq_avg < tq)
+ if (bao->bat_neigh_is_equiv_or_better(neigh_node, router))
goto candidate_del;

/* check if we have another candidate with the same mac address or
@@ -480,18 +489,25 @@ out:
return router;
}

-/* Interface Alternating: Use the best of the
- * remaining candidates which are not using
- * this interface.
+/**
+ * batadv_find_ifalter_router - find the best of the remaining candidates which
+ * are not using this interface
+ * @bat_priv: the bat priv with all the soft interface information
+ * @primary_orig: the destination
+ * @recv_if: the interface that the router returned by this function has to not
+ * use
*
- * Increases the returned router's refcount
+ * Returns the best candidate towards primary_orig that is not using recv_if.
+ * Increases the returned neighbor's refcount
*/
static struct batadv_neigh_node *
-batadv_find_ifalter_router(struct batadv_orig_node *primary_orig,
+batadv_find_ifalter_router(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *primary_orig,
const struct batadv_hard_iface *recv_if)
{
- struct batadv_neigh_node *tmp_neigh_node;
struct batadv_neigh_node *router = NULL, *first_candidate = NULL;
+ struct batadv_algo_ops *bao = bat_priv->bat_algo_ops;
+ struct batadv_neigh_node *tmp_neigh_node;

rcu_read_lock();
list_for_each_entry_rcu(tmp_neigh_node, &primary_orig->bond_list,
@@ -503,8 +519,7 @@ batadv_find_ifalter_router(struct batadv_orig_node *primary_orig,
if (tmp_neigh_node->if_incoming == recv_if)
continue;

- if (router &&
- tmp_neigh_node->bat_iv.tq_avg <= router->bat_iv.tq_avg)
+ if (router && bao->bat_neigh_cmp(tmp_neigh_node, router))
continue;

if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
@@ -638,7 +653,8 @@ batadv_find_router(struct batadv_priv *bat_priv,
if (bonding_enabled)
router = batadv_find_bond_router(primary_orig_node, recv_if);
else
- router = batadv_find_ifalter_router(primary_orig_node, recv_if);
+ router = batadv_find_ifalter_router(bat_priv, primary_orig_node,
+ recv_if);

return_router:
if (router && router->if_incoming->if_status != BATADV_IF_ACTIVE)
diff --git a/routing.h b/routing.h
index 55d637a..19544dd 100644
--- a/routing.h
+++ b/routing.h
@@ -48,7 +48,8 @@ batadv_find_router(struct batadv_priv *bat_priv,
const struct batadv_hard_iface *recv_if);
void batadv_bonding_candidate_del(struct batadv_orig_node *orig_node,
struct batadv_neigh_node *neigh_node);
-void batadv_bonding_candidate_add(struct batadv_orig_node *orig_node,
+void batadv_bonding_candidate_add(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
struct batadv_neigh_node *neigh_node);
void batadv_bonding_save_primary(const struct batadv_orig_node *orig_node,
struct batadv_orig_node *orig_neigh_node,
--
1.8.1.5