diff options
Diffstat (limited to 'net/batman-adv/bat_v_ogm.c')
| -rw-r--r-- | net/batman-adv/bat_v_ogm.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/net/batman-adv/bat_v_ogm.c b/net/batman-adv/bat_v_ogm.c index 18028b9f95f0..0f8495b9eeb1 100644 --- a/net/batman-adv/bat_v_ogm.c +++ b/net/batman-adv/bat_v_ogm.c @@ -47,9 +47,9 @@ * @bat_priv: the bat priv with all the soft interface information * @addr: the address of the originator * - * Return: the orig_node corresponding to the specified address. If such object - * does not exist it is allocated here. In case of allocation failure returns - * NULL. + * Return: the orig_node corresponding to the specified address. If such an + * object does not exist, it is allocated here. In case of allocation failure + * returns NULL. */ struct batadv_orig_node *batadv_v_ogm_orig_get(struct batadv_priv *bat_priv, const u8 *addr) @@ -172,7 +172,7 @@ static bool batadv_v_ogm_queue_left(struct sk_buff *skb, * batadv_v_ogm_aggr_list_free - free all elements in an aggregation queue * @hard_iface: the interface holding the aggregation queue * - * Empties the OGMv2 aggregation queue and frees all the skbs it contained. + * Empties the OGMv2 aggregation queue and frees all the skbs it contains. * * Caller needs to hold the hard_iface->bat_v.aggr_list.lock. */ @@ -378,7 +378,7 @@ static void batadv_v_ogm_send(struct work_struct *work) * batadv_v_ogm_aggr_work() - OGM queue periodic task per interface * @work: work queue item * - * Emits aggregated OGM message in regular intervals. + * Emits aggregated OGM messages in regular intervals. */ void batadv_v_ogm_aggr_work(struct work_struct *work) { @@ -399,7 +399,7 @@ void batadv_v_ogm_aggr_work(struct work_struct *work) * batadv_v_ogm_iface_enable() - prepare an interface for B.A.T.M.A.N. V * @hard_iface: the interface to prepare * - * Takes care of scheduling own OGM sending routine for this interface. + * Takes care of scheduling its own OGM sending routine for this interface. * * Return: 0 on success or a negative error code otherwise */ @@ -455,15 +455,17 @@ unlock: * @throughput: the current throughput * * Apply a penalty on the current throughput metric value based on the - * characteristic of the interface where the OGM has been received. The return - * value is computed as follows: + * characteristic of the interface where the OGM has been received. + * + * Initially the per hardif hop penalty is applied to the throughput. After + * that the return value is then computed as follows: * - throughput * 50% if the incoming and outgoing interface are the * same WiFi interface and the throughput is above * 1MBit/s * - throughput if the outgoing interface is the default * interface (i.e. this OGM is processed for the * internal table and not forwarded) - * - throughput * hop penalty otherwise + * - throughput * node hop penalty otherwise * * Return: the penalised throughput metric. */ @@ -472,9 +474,14 @@ static u32 batadv_v_forward_penalty(struct batadv_priv *bat_priv, struct batadv_hard_iface *if_outgoing, u32 throughput) { + int if_hop_penalty = atomic_read(&if_incoming->hop_penalty); int hop_penalty = atomic_read(&bat_priv->hop_penalty); int hop_penalty_max = BATADV_TQ_MAX_VALUE; + /* Apply per hardif hop penalty */ + throughput = throughput * (hop_penalty_max - if_hop_penalty) / + hop_penalty_max; + /* Don't apply hop penalty in default originator table. */ if (if_outgoing == BATADV_IF_DEFAULT) return throughput; @@ -847,7 +854,7 @@ batadv_v_ogm_aggr_packet(int buff_pos, int packet_len, * batadv_v_ogm_process() - process an incoming batman v OGM * @skb: the skb containing the OGM * @ogm_offset: offset to the OGM which should be processed (for aggregates) - * @if_incoming: the interface where this packet was receved + * @if_incoming: the interface where this packet was received */ static void batadv_v_ogm_process(const struct sk_buff *skb, int ogm_offset, struct batadv_hard_iface *if_incoming) |