From: Veaceslav Falico Date: Wed, 28 Aug 2013 21:25:14 +0000 (+0200) Subject: bonding: make alb_send_learning_packets() use upper dev list X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5bf94b839a44aa9d8199607c32b95832f2892ee6;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git bonding: make alb_send_learning_packets() use upper dev list Currently, if there are vlans on top of bond, alb_send_learning_packets() will never send LPs from the bond itself (i.e. untagged), which might leave untagged clients unupdated. Also, the 'circular vlan' logic (i.e. update only MAX_LP_BURST vlans at a time, and save the last vlan for the next update) is really suboptimal - in case of lots of vlans it will take a lot of time to update every vlan. It is also never called in any hot path and sends only a few small packets - thus the optimization by itself is useless. So remove the whole current_alb_vlan/MAX_LP_BURST logic from alb_send_learning_packets(). Instead, we'll first send a packet untagged and then traverse the upper dev list, sending a tagged packet for each vlan found. Also, remove the MAX_LP_BURST define - we already don't need it. CC: Jay Vosburgh CC: Andy Gospodarek Signed-off-by: Veaceslav Falico Signed-off-by: David S. Miller --- diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 3ca3c85d6f24..b6a68b4a1a09 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -1013,27 +1013,20 @@ static void alb_send_lp_vid(struct slave *slave, u8 mac_addr[], static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[]) { struct bonding *bond = bond_get_bond_by_slave(slave); - u16 vlan_id; - int i; - - for (i = 0; i < MAX_LP_BURST; i++) { - vlan_id = 0; - - if (bond_vlan_used(bond)) { - struct vlan_entry *vlan; + struct net_device *upper; + struct list_head *iter; - vlan = bond_next_vlan(bond, - bond->alb_info.current_alb_vlan); - - bond->alb_info.current_alb_vlan = vlan; - if (!vlan) - continue; - - vlan_id = vlan->vlan_id; - } + /* send untagged */ + alb_send_lp_vid(slave, mac_addr, 0); - alb_send_lp_vid(slave, mac_addr, vlan_id); + /* loop through vlans and send one packet for each */ + rcu_read_lock(); + netdev_for_each_upper_dev_rcu(bond->dev, upper, iter) { + if (upper->priv_flags & IFF_802_1Q_VLAN) + alb_send_lp_vid(slave, mac_addr, + vlan_dev_vlan_id(upper)); } + rcu_read_unlock(); } static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[]) diff --git a/drivers/net/bonding/bond_alb.h b/drivers/net/bonding/bond_alb.h index e7a5b8b37ea3..e13917222cd4 100644 --- a/drivers/net/bonding/bond_alb.h +++ b/drivers/net/bonding/bond_alb.h @@ -53,7 +53,6 @@ struct slave; #define TLB_NULL_INDEX 0xffffffff -#define MAX_LP_BURST 3 /* rlb defs */ #define RLB_HASH_TABLE_SIZE 256