diff options
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 95 |
1 files changed, 68 insertions, 27 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 19eb990d398c..771a449d2f56 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -625,6 +625,23 @@ static void bond_set_dev_addr(struct net_device *bond_dev, call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev); } +static struct slave *bond_get_old_active(struct bonding *bond, + struct slave *new_active) +{ + struct slave *slave; + struct list_head *iter; + + bond_for_each_slave(bond, slave, iter) { + if (slave == new_active) + continue; + + if (ether_addr_equal(bond->dev->dev_addr, slave->dev->dev_addr)) + return slave; + } + + return NULL; +} + /* bond_do_fail_over_mac * * Perform special MAC address swapping for fail_over_mac settings @@ -652,6 +669,9 @@ static void bond_do_fail_over_mac(struct bonding *bond, if (!new_active) return; + if (!old_active) + old_active = bond_get_old_active(bond, new_active); + if (old_active) { ether_addr_copy(tmp_mac, new_active->dev->dev_addr); ether_addr_copy(saddr.sa_data, @@ -689,40 +709,57 @@ out: } -static bool bond_should_change_active(struct bonding *bond) +static struct slave *bond_choose_primary_or_current(struct bonding *bond) { struct slave *prim = rtnl_dereference(bond->primary_slave); struct slave *curr = rtnl_dereference(bond->curr_active_slave); - if (!prim || !curr || curr->link != BOND_LINK_UP) - return true; + if (!prim || prim->link != BOND_LINK_UP) { + if (!curr || curr->link != BOND_LINK_UP) + return NULL; + return curr; + } + if (bond->force_primary) { bond->force_primary = false; - return true; + return prim; + } + + if (!curr || curr->link != BOND_LINK_UP) + return prim; + + /* At this point, prim and curr are both up */ + switch (bond->params.primary_reselect) { + case BOND_PRI_RESELECT_ALWAYS: + return prim; + case BOND_PRI_RESELECT_BETTER: + if (prim->speed < curr->speed) + return curr; + if (prim->speed == curr->speed && prim->duplex <= curr->duplex) + return curr; + return prim; + case BOND_PRI_RESELECT_FAILURE: + return curr; + default: + netdev_err(bond->dev, "impossible primary_reselect %d\n", + bond->params.primary_reselect); + return curr; } - if (bond->params.primary_reselect == BOND_PRI_RESELECT_BETTER && - (prim->speed < curr->speed || - (prim->speed == curr->speed && prim->duplex <= curr->duplex))) - return false; - if (bond->params.primary_reselect == BOND_PRI_RESELECT_FAILURE) - return false; - return true; } /** - * find_best_interface - select the best available slave to be the active one + * bond_find_best_slave - select the best available slave to be the active one * @bond: our bonding struct */ static struct slave *bond_find_best_slave(struct bonding *bond) { - struct slave *slave, *bestslave = NULL, *primary; + struct slave *slave, *bestslave = NULL; struct list_head *iter; int mintime = bond->params.updelay; - primary = rtnl_dereference(bond->primary_slave); - if (primary && primary->link == BOND_LINK_UP && - bond_should_change_active(bond)) - return primary; + slave = bond_choose_primary_or_current(bond); + if (slave) + return slave; bond_for_each_slave(bond, slave, iter) { if (slave->link == BOND_LINK_UP) @@ -749,6 +786,7 @@ static bool bond_should_notify_peers(struct bonding *bond) slave ? slave->dev->name : "NULL"); if (!slave || !bond->send_peer_notif || + !netif_carrier_ok(bond->dev) || test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state)) return false; @@ -941,7 +979,6 @@ static void bond_poll_controller(struct net_device *bond_dev) if (bond_3ad_get_active_agg_info(bond, &ad_info)) return; - rcu_read_lock_bh(); bond_for_each_slave_rcu(bond, slave, iter) { ops = slave->dev->netdev_ops; if (!bond_slave_is_up(slave) || !ops->ndo_poll_controller) @@ -962,7 +999,6 @@ static void bond_poll_controller(struct net_device *bond_dev) ops->ndo_poll_controller(slave->dev); up(&ni->dev_lock); } - rcu_read_unlock_bh(); } static void bond_netpoll_cleanup(struct net_device *bond_dev) @@ -1708,9 +1744,16 @@ err_free: err_undo_flags: /* Enslave of first slave has failed and we need to fix master's mac */ - if (!bond_has_slaves(bond) && - ether_addr_equal_64bits(bond_dev->dev_addr, slave_dev->dev_addr)) - eth_hw_addr_random(bond_dev); + if (!bond_has_slaves(bond)) { + if (ether_addr_equal_64bits(bond_dev->dev_addr, + slave_dev->dev_addr)) + eth_hw_addr_random(bond_dev); + if (bond_dev->type != ARPHRD_ETHER) { + ether_setup(bond_dev); + bond_dev->flags |= IFF_MASTER; + bond_dev->priv_flags &= ~IFF_TX_SKB_SHARING; + } + } return res; } @@ -1899,6 +1942,7 @@ static int bond_release_and_destroy(struct net_device *bond_dev, bond_dev->priv_flags |= IFF_DISABLE_NETPOLL; netdev_info(bond_dev, "Destroying bond %s\n", bond_dev->name); + bond_remove_proc_entry(bond); unregister_netdevice(bond_dev); } return ret; @@ -3051,7 +3095,7 @@ static bool bond_flow_dissect(struct bonding *bond, struct sk_buff *skb, int noff, proto = -1; if (bond->params.xmit_policy > BOND_XMIT_POLICY_LAYER23) - return skb_flow_dissect_flow_keys(skb, fk); + return skb_flow_dissect_flow_keys(skb, fk, 0); fk->ports.ports = 0; noff = skb_network_offset(skb); @@ -3734,7 +3778,6 @@ int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave) struct slave *slave; struct list_head *iter; struct bond_up_slave *new_arr, *old_arr; - int slaves_in_agg; int agg_id = 0; int ret = 0; @@ -3765,7 +3808,6 @@ int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave) } goto out; } - slaves_in_agg = ad_info.ports; agg_id = ad_info.aggregator_id; } bond_for_each_slave(bond, slave, iter) { @@ -4076,9 +4118,8 @@ void bond_setup(struct net_device *bond_dev) SET_NETDEV_DEVTYPE(bond_dev, &bond_type); /* Initialize the device options */ - bond_dev->tx_queue_len = 0; bond_dev->flags |= IFF_MASTER|IFF_MULTICAST; - bond_dev->priv_flags |= IFF_BONDING | IFF_UNICAST_FLT; + bond_dev->priv_flags |= IFF_BONDING | IFF_UNICAST_FLT | IFF_NO_QUEUE; bond_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); /* don't acquire bond device's netif_tx_lock when transmitting */ |