/*
* Push the promiscuity flag down to appropriate slaves
*/
-static void bond_set_promiscuity(struct bonding *bond, int inc)
+static int bond_set_promiscuity(struct bonding *bond, int inc)
{
+ int err = 0;
if (USES_PRIMARY(bond->params.mode)) {
/* write lock already acquired */
if (bond->curr_active_slave) {
- dev_set_promiscuity(bond->curr_active_slave->dev, inc);
+ err = dev_set_promiscuity(bond->curr_active_slave->dev,
+ inc);
}
} else {
struct slave *slave;
int i;
bond_for_each_slave(bond, slave, i) {
- dev_set_promiscuity(slave->dev, inc);
+ err = dev_set_promiscuity(slave->dev, inc);
+ if (err)
+ return err;
}
}
+ return err;
}
/*
* Push the allmulti flag down to all slaves
*/
-static void bond_set_allmulti(struct bonding *bond, int inc)
+static int bond_set_allmulti(struct bonding *bond, int inc)
{
+ int err = 0;
if (USES_PRIMARY(bond->params.mode)) {
/* write lock already acquired */
if (bond->curr_active_slave) {
- dev_set_allmulti(bond->curr_active_slave->dev, inc);
+ err = dev_set_allmulti(bond->curr_active_slave->dev,
+ inc);
}
} else {
struct slave *slave;
int i;
bond_for_each_slave(bond, slave, i) {
- dev_set_allmulti(slave->dev, inc);
+ err = dev_set_allmulti(slave->dev, inc);
+ if (err)
+ return err;
}
}
+ return err;
}
/*
}
if (new_active) {
+ /* FIXME: Signal errors upstream. */
if (bond->dev->flags & IFF_PROMISC) {
dev_set_promiscuity(new_active->dev, 1);
}
if (new_active) {
bond_set_slave_active_flags(new_active);
- }
- if (new_active && bond->params.fail_over_mac)
- bond_do_fail_over_mac(bond, new_active, old_active);
+ if (bond->params.fail_over_mac)
+ bond_do_fail_over_mac(bond, new_active,
+ old_active);
- bond->send_grat_arp = bond->params.num_grat_arp;
- if (bond->curr_active_slave &&
- test_bit(__LINK_STATE_LINKWATCH_PENDING,
- &bond->curr_active_slave->dev->state)) {
- dprintk("delaying gratuitous arp on %s\n",
- bond->curr_active_slave->dev->name);
- } else {
- if (bond->send_grat_arp > 0) {
- bond_send_gratuitous_arp(bond);
- bond->send_grat_arp--;
- }
+ bond->send_grat_arp = bond->params.num_grat_arp;
+ bond_send_gratuitous_arp(bond);
+
+ write_unlock_bh(&bond->curr_slave_lock);
+ read_unlock(&bond->lock);
+
+ netdev_bonding_change(bond->dev);
+
+ read_lock(&bond->lock);
+ write_lock_bh(&bond->curr_slave_lock);
}
}
}
if (!USES_PRIMARY(bond->params.mode)) {
/* set promiscuity level to new slave */
if (bond_dev->flags & IFF_PROMISC) {
- dev_set_promiscuity(slave_dev, 1);
+ res = dev_set_promiscuity(slave_dev, 1);
+ if (res)
+ goto err_close;
}
/* set allmulti level to new slave */
if (bond_dev->flags & IFF_ALLMULTI) {
- dev_set_allmulti(slave_dev, 1);
+ res = dev_set_allmulti(slave_dev, 1);
+ if (res)
+ goto err_close;
}
- netif_tx_lock_bh(bond_dev);
+ netif_addr_lock_bh(bond_dev);
/* upload master's mc_list to new slave */
for (dmi = bond_dev->mc_list; dmi; dmi = dmi->next) {
dev_mc_add (slave_dev, dmi->dmi_addr, dmi->dmi_addrlen, 0);
}
- netif_tx_unlock_bh(bond_dev);
+ netif_addr_unlock_bh(bond_dev);
}
if (bond->params.mode == BOND_MODE_8023AD) {
}
/* flush master's mc_list from slave */
- netif_tx_lock_bh(bond_dev);
+ netif_addr_lock_bh(bond_dev);
bond_mc_list_flush(bond_dev, slave_dev);
- netif_tx_unlock_bh(bond_dev);
+ netif_addr_unlock_bh(bond_dev);
}
netdev_set_master(slave_dev, NULL);
}
/* flush master's mc_list from slave */
- netif_tx_lock_bh(bond_dev);
+ netif_addr_lock_bh(bond_dev);
bond_mc_list_flush(bond_dev, slave_dev);
- netif_tx_unlock_bh(bond_dev);
+ netif_addr_unlock_bh(bond_dev);
}
netdev_set_master(slave_dev, NULL);
* program could monitor the link itself if needed.
*/
- if (bond->send_grat_arp) {
- if (bond->curr_active_slave && test_bit(__LINK_STATE_LINKWATCH_PENDING,
- &bond->curr_active_slave->dev->state))
- dprintk("Needs to send gratuitous arp but not yet\n");
- else {
- dprintk("sending delayed gratuitous arp on on %s\n",
- bond->curr_active_slave->dev->name);
- bond_send_gratuitous_arp(bond);
- bond->send_grat_arp--;
- }
- }
read_lock(&bond->curr_slave_lock);
oldcurrent = bond->curr_active_slave;
read_unlock(&bond->curr_slave_lock);
read_unlock(&bond->lock);
return;
}
+
+ if (bond->send_grat_arp) {
+ read_lock(&bond->curr_slave_lock);
+ bond_send_gratuitous_arp(bond);
+ read_unlock(&bond->curr_slave_lock);
+ }
+
if (__bond_mii_monitor(bond, 0)) {
read_unlock(&bond->lock);
rtnl_lock();
/*
* Kick out a gratuitous ARP for an IP on the bonding master plus one
* for each VLAN above us.
+ *
+ * Caller must hold curr_slave_lock for read or better
*/
static void bond_send_gratuitous_arp(struct bonding *bond)
{
dprintk("bond_send_grat_arp: bond %s slave %s\n", bond->dev->name,
slave ? slave->dev->name : "NULL");
- if (!slave)
+
+ if (!slave || !bond->send_grat_arp ||
+ test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state))
return;
+ bond->send_grat_arp--;
+
if (bond->master_ip) {
bond_arp_send(slave->dev, ARPOP_REPLY, bond->master_ip,
bond->master_ip, 0);
if (bond->slave_cnt == 0)
goto re_arm;
+ if (bond->send_grat_arp) {
+ read_lock(&bond->curr_slave_lock);
+ bond_send_gratuitous_arp(bond);
+ read_unlock(&bond->curr_slave_lock);
+ }
+
if (bond_ab_arp_inspect(bond, delta_in_ticks)) {
read_unlock(&bond->lock);
rtnl_lock();
write_lock_bh(&bond->lock);
+ bond->send_grat_arp = 0;
/* signal timers not to re-arm */
bond->kill_timers = 1;
* Do promisc before checking multicast_mode
*/
if ((bond_dev->flags & IFF_PROMISC) && !(bond->flags & IFF_PROMISC)) {
+ /*
+ * FIXME: Need to handle the error when one of the multi-slaves
+ * encounters error.
+ */
bond_set_promiscuity(bond, 1);
}
/* set allmulti flag to slaves */
if ((bond_dev->flags & IFF_ALLMULTI) && !(bond->flags & IFF_ALLMULTI)) {
+ /*
+ * FIXME: Need to handle the error when one of the multi-slaves
+ * encounters error.
+ */
bond_set_allmulti(bond, 1);
}
struct net_device *bond_dev = bond->dev;
bond_work_cancel_all(bond);
- netif_tx_lock_bh(bond_dev);
+ netif_addr_lock_bh(bond_dev);
bond_mc_list_destroy(bond);
- netif_tx_unlock_bh(bond_dev);
+ netif_addr_unlock_bh(bond_dev);
/* Release the bonded slaves */
bond_release_all(bond_dev);
bond_destroy(bond);
}
}
- if (max_bonds < 1 || max_bonds > INT_MAX) {
+ if (max_bonds < 0 || max_bonds > INT_MAX) {
printk(KERN_WARNING DRV_NAME
": Warning: max_bonds (%d) not in range %d-%d, so it "
"was reset to BOND_DEFAULT_MAX_BONDS (%d)\n",
- max_bonds, 1, INT_MAX, BOND_DEFAULT_MAX_BONDS);
+ max_bonds, 0, INT_MAX, BOND_DEFAULT_MAX_BONDS);
max_bonds = BOND_DEFAULT_MAX_BONDS;
}
printk("\n");
- } else {
+ } else if (max_bonds) {
/* miimon and arp_interval not set, we need one so things
* work as expected, see bonding.txt for details
*/
}
static struct lock_class_key bonding_netdev_xmit_lock_key;
+static struct lock_class_key bonding_netdev_addr_lock_key;
+
+static void bond_set_lockdep_class_one(struct net_device *dev,
+ struct netdev_queue *txq,
+ void *_unused)
+{
+ lockdep_set_class(&txq->_xmit_lock,
+ &bonding_netdev_xmit_lock_key);
+}
+
+static void bond_set_lockdep_class(struct net_device *dev)
+{
+ lockdep_set_class(&dev->addr_list_lock,
+ &bonding_netdev_addr_lock_key);
+ netdev_for_each_tx_queue(dev, bond_set_lockdep_class_one, NULL);
+}
/* Create a new bond based on the specified name and bonding parameters.
* If name is NULL, obtain a suitable "bond%d" name for us.
goto out_bond;
}
- lockdep_set_class(&bond_dev->_xmit_lock, &bonding_netdev_xmit_lock_key);
+ bond_set_lockdep_class(bond_dev);
netif_carrier_off(bond_dev);
projects / linux-2.6 / blobdiff