write_unlock_bh(&bond->curr_slave_lock);
if (old_active) {
- memcpy(tmp_mac, new_active->dev->dev_addr, ETH_ALEN);
- memcpy(saddr.sa_data, old_active->dev->dev_addr,
- ETH_ALEN);
+ ether_addr_copy(tmp_mac, new_active->dev->dev_addr);
+ ether_addr_copy(saddr.sa_data,
+ old_active->dev->dev_addr);
saddr.sa_family = new_active->dev->type;
} else {
- memcpy(saddr.sa_data, bond->dev->dev_addr, ETH_ALEN);
+ ether_addr_copy(saddr.sa_data, bond->dev->dev_addr);
saddr.sa_family = bond->dev->type;
}
if (!old_active)
goto out;
- memcpy(saddr.sa_data, tmp_mac, ETH_ALEN);
+ ether_addr_copy(saddr.sa_data, tmp_mac);
saddr.sa_family = old_active->dev->type;
rv = dev_set_mac_address(old_active->dev, &saddr);
return;
if (new_active) {
- new_active->jiffies = jiffies;
+ new_active->last_link_up = jiffies;
if (new_active->link == BOND_LINK_BACK) {
if (USES_PRIMARY(bond->params.mode)) {
- pr_info("%s: making interface %s the new active one %d ms earlier.\n",
+ pr_info("%s: making interface %s the new active one %d ms earlier\n",
bond->dev->name, new_active->dev->name,
(bond->params.updelay - new_active->delay) * bond->params.miimon);
}
bond_alb_handle_link_change(bond, new_active, BOND_LINK_UP);
} else {
if (USES_PRIMARY(bond->params.mode)) {
- pr_info("%s: making interface %s the new active one.\n",
+ pr_info("%s: making interface %s the new active one\n",
bond->dev->name, new_active->dev->name);
}
}
if (bond_is_lb(bond)) {
bond_alb_handle_active_change(bond, new_active);
if (old_active)
- bond_set_slave_inactive_flags(old_active);
+ bond_set_slave_inactive_flags(old_active,
+ BOND_SLAVE_NOTIFY_NOW);
if (new_active)
- bond_set_slave_active_flags(new_active);
+ bond_set_slave_active_flags(new_active,
+ BOND_SLAVE_NOTIFY_NOW);
} else {
rcu_assign_pointer(bond->curr_active_slave, new_active);
}
if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) {
if (old_active)
- bond_set_slave_inactive_flags(old_active);
+ bond_set_slave_inactive_flags(old_active,
+ BOND_SLAVE_NOTIFY_NOW);
if (new_active) {
bool should_notify_peers = false;
- bond_set_slave_active_flags(new_active);
+ bond_set_slave_active_flags(new_active,
+ BOND_SLAVE_NOTIFY_NOW);
if (bond->params.fail_over_mac)
bond_do_fail_over_mac(bond, new_active,
pr_info("%s: first active interface up!\n",
bond->dev->name);
} else {
- pr_info("%s: now running without any active interface !\n",
+ pr_info("%s: now running without any active interface!\n",
bond->dev->name);
}
}
slave->np = NULL;
__netpoll_free_async(np);
}
-static inline bool slave_dev_support_netpoll(struct net_device *slave_dev)
-{
- if (slave_dev->priv_flags & IFF_DISABLE_NETPOLL)
- return false;
- if (!slave_dev->netdev_ops->ndo_poll_controller)
- return false;
- return true;
-}
static void bond_poll_controller(struct net_device *bond_dev)
{
slave = bond_slave_get_rcu(skb->dev);
bond = slave->bond;
- if (bond->params.arp_interval)
- slave->dev->last_rx = jiffies;
-
recv_probe = ACCESS_ONCE(bond->recv_probe);
if (recv_probe) {
ret = recv_probe(skb, bond, slave);
kfree_skb(skb);
return RX_HANDLER_CONSUMED;
}
- memcpy(eth_hdr(skb)->h_dest, bond->dev->dev_addr, ETH_ALEN);
+ ether_addr_copy(eth_hdr(skb)->h_dest, bond->dev->dev_addr);
}
return ret;
if (!bond->params.use_carrier &&
slave_dev->ethtool_ops->get_link == NULL &&
slave_ops->ndo_do_ioctl == NULL) {
- pr_warning("%s: Warning: no link monitoring support for %s\n",
- bond_dev->name, slave_dev->name);
+ pr_warn("%s: Warning: no link monitoring support for %s\n",
+ bond_dev->name, slave_dev->name);
}
/* already enslaved */
if (slave_dev->flags & IFF_SLAVE) {
- pr_debug("Error, Device was already enslaved\n");
+ pr_debug("Error: Device was already enslaved\n");
return -EBUSY;
}
+ if (bond_dev == slave_dev) {
+ pr_err("%s: cannot enslave bond to itself.\n", bond_dev->name);
+ return -EPERM;
+ }
+
/* vlan challenged mutual exclusion */
/* no need to lock since we're protected by rtnl_lock */
if (slave_dev->features & NETIF_F_VLAN_CHALLENGED) {
bond_dev->name, slave_dev->name, bond_dev->name);
return -EPERM;
} else {
- pr_warning("%s: Warning: enslaved VLAN challenged slave %s. Adding VLANs will be blocked as long as %s is part of bond %s\n",
- bond_dev->name, slave_dev->name,
- slave_dev->name, bond_dev->name);
+ pr_warn("%s: Warning: enslaved VLAN challenged slave %s. Adding VLANs will be blocked as long as %s is part of bond %s\n",
+ bond_dev->name, slave_dev->name,
+ slave_dev->name, bond_dev->name);
}
} else {
pr_debug("%s: ! NETIF_F_VLAN_CHALLENGED\n", slave_dev->name);
* enslaving it; the old ifenslave will not.
*/
if ((slave_dev->flags & IFF_UP)) {
- pr_err("%s is up. This may be due to an out of date ifenslave.\n",
+ pr_err("%s is up - this may be due to an out of date ifenslave\n",
slave_dev->name);
res = -EPERM;
goto err_undo_flags;
bond_dev);
}
} else if (bond_dev->type != slave_dev->type) {
- pr_err("%s ether type (%d) is different from other slaves (%d), can not enslave it.\n",
- slave_dev->name,
- slave_dev->type, bond_dev->type);
+ pr_err("%s ether type (%d) is different from other slaves (%d), can not enslave it\n",
+ slave_dev->name, slave_dev->type, bond_dev->type);
res = -EINVAL;
goto err_undo_flags;
}
if (slave_ops->ndo_set_mac_address == NULL) {
if (!bond_has_slaves(bond)) {
- pr_warn("%s: Warning: The first slave device specified does not support setting the MAC address.\n",
+ pr_warn("%s: Warning: The first slave device specified does not support setting the MAC address\n",
bond_dev->name);
if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) {
bond->params.fail_over_mac = BOND_FOM_ACTIVE;
- pr_warn("%s: Setting fail_over_mac to active for active-backup mode.\n",
+ pr_warn("%s: Setting fail_over_mac to active for active-backup mode\n",
bond_dev->name);
}
} else if (bond->params.fail_over_mac != BOND_FOM_ACTIVE) {
- pr_err("%s: Error: The slave device specified does not support setting the MAC address, but fail_over_mac is not set to active.\n",
+ pr_err("%s: Error: The slave device specified does not support setting the MAC address, but fail_over_mac is not set to active\n",
bond_dev->name);
res = -EOPNOTSUPP;
goto err_undo_flags;
* that need it, and for restoring it upon release, and then
* set it to the master's address
*/
- memcpy(new_slave->perm_hwaddr, slave_dev->dev_addr, ETH_ALEN);
+ ether_addr_copy(new_slave->perm_hwaddr, slave_dev->dev_addr);
if (!bond->params.fail_over_mac ||
bond->params.mode != BOND_MODE_ACTIVEBACKUP) {
bond_update_speed_duplex(new_slave);
- new_slave->last_arp_rx = jiffies -
+ new_slave->last_rx = jiffies -
(msecs_to_jiffies(bond->params.arp_interval) + 1);
for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
- new_slave->target_last_arp_rx[i] = new_slave->last_arp_rx;
+ new_slave->target_last_arp_rx[i] = new_slave->last_rx;
if (bond->params.miimon && !bond->params.use_carrier) {
link_reporting = bond_check_dev_link(bond, slave_dev, 1);
* supported); thus, we don't need to change
* the messages for netif_carrier.
*/
- pr_warning("%s: Warning: MII and ETHTOOL support not available for interface %s, and arp_interval/arp_ip_target module parameters not specified, thus bonding will not detect link failures! see bonding.txt for details.\n",
- bond_dev->name, slave_dev->name);
+ pr_warn("%s: Warning: MII and ETHTOOL support not available for interface %s, and arp_interval/arp_ip_target module parameters not specified, thus bonding will not detect link failures! see bonding.txt for details\n",
+ bond_dev->name, slave_dev->name);
} else if (link_reporting == -1) {
/* unable get link status using mii/ethtool */
- pr_warning("%s: Warning: can't get link status from interface %s; the network driver associated with this interface does not support MII or ETHTOOL link status reporting, thus miimon has no effect on this interface.\n",
- bond_dev->name, slave_dev->name);
+ pr_warn("%s: Warning: can't get link status from interface %s; the network driver associated with this interface does not support MII or ETHTOOL link status reporting, thus miimon has no effect on this interface\n",
+ bond_dev->name, slave_dev->name);
}
}
}
if (new_slave->link != BOND_LINK_DOWN)
- new_slave->jiffies = jiffies;
+ new_slave->last_link_up = jiffies;
pr_debug("Initial state of slave_dev is BOND_LINK_%s\n",
- new_slave->link == BOND_LINK_DOWN ? "DOWN" :
- (new_slave->link == BOND_LINK_UP ? "UP" : "BACK"));
+ new_slave->link == BOND_LINK_DOWN ? "DOWN" :
+ (new_slave->link == BOND_LINK_UP ? "UP" : "BACK"));
if (USES_PRIMARY(bond->params.mode) && bond->params.primary[0]) {
/* if there is a primary slave, remember it */
switch (bond->params.mode) {
case BOND_MODE_ACTIVEBACKUP:
- bond_set_slave_inactive_flags(new_slave);
+ bond_set_slave_inactive_flags(new_slave,
+ BOND_SLAVE_NOTIFY_NOW);
break;
case BOND_MODE_8023AD:
/* in 802.3ad mode, the internal mechanism
* will activate the slaves in the selected
* aggregator
*/
- bond_set_slave_inactive_flags(new_slave);
+ bond_set_slave_inactive_flags(new_slave, BOND_SLAVE_NOTIFY_NOW);
/* if this is the first slave */
if (!prev_slave) {
SLAVE_AD_INFO(new_slave).id = 1;
case BOND_MODE_TLB:
case BOND_MODE_ALB:
bond_set_active_slave(new_slave);
- bond_set_slave_inactive_flags(new_slave);
+ bond_set_slave_inactive_flags(new_slave, BOND_SLAVE_NOTIFY_NOW);
break;
default:
pr_debug("This slave is always active in trunk mode\n");
slave_dev->npinfo = bond->dev->npinfo;
if (slave_dev->npinfo) {
if (slave_enable_netpoll(new_slave)) {
- pr_info("Error, %s: master_dev is using netpoll, "
- "but new slave device does not support netpoll.\n",
- bond_dev->name);
+ pr_info("Error, %s: master_dev is using netpoll, but new slave device does not support netpoll\n",
+ bond_dev->name);
res = -EBUSY;
goto err_detach;
}
unblock_netpoll_tx();
}
- pr_info("%s: enslaving %s as a%s interface with a%s link.\n",
+ pr_info("%s: Enslaving %s as %s interface with %s link\n",
bond_dev->name, slave_dev->name,
- bond_is_active_slave(new_slave) ? "n active" : " backup",
- new_slave->link != BOND_LINK_DOWN ? "n up" : " down");
+ bond_is_active_slave(new_slave) ? "an active" : "a backup",
+ new_slave->link != BOND_LINK_DOWN ? "an up" : "a down");
/* enslave is successful */
return 0;
* MAC if this slave's MAC is in use by the bond, or at
* least print a warning.
*/
- memcpy(addr.sa_data, new_slave->perm_hwaddr, ETH_ALEN);
+ ether_addr_copy(addr.sa_data, new_slave->perm_hwaddr);
addr.sa_family = slave_dev->type;
dev_set_mac_address(slave_dev, &addr);
}
/* slave is not a slave or master is not master of this slave */
if (!(slave_dev->flags & IFF_SLAVE) ||
!netdev_has_upper_dev(slave_dev, bond_dev)) {
- pr_err("%s: Error: cannot release %s.\n",
+ pr_err("%s: Error: cannot release %s\n",
bond_dev->name, slave_dev->name);
return -EINVAL;
}
return -EINVAL;
}
- /* release the slave from its bond */
- bond->slave_cnt--;
-
bond_sysfs_slave_del(slave);
bond_upper_dev_unlink(bond_dev, slave_dev);
write_unlock_bh(&bond->lock);
- pr_info("%s: releasing %s interface %s\n",
+ pr_info("%s: Releasing %s interface %s\n",
bond_dev->name,
bond_is_active_slave(slave) ? "active" : "backup",
slave_dev->name);
bond->params.mode != BOND_MODE_ACTIVEBACKUP)) {
if (ether_addr_equal_64bits(bond_dev->dev_addr, slave->perm_hwaddr) &&
bond_has_slaves(bond))
- pr_warn("%s: Warning: the permanent HWaddr of %s - %pM - is still in use by %s. Set the HWaddr of %s to a different address to avoid conflicts.\n",
- bond_dev->name, slave_dev->name,
- slave->perm_hwaddr,
- bond_dev->name, slave_dev->name);
+ pr_warn("%s: Warning: the permanent HWaddr of %s - %pM - is still in use by %s - set the HWaddr of %s to a different address to avoid conflicts\n",
+ bond_dev->name, slave_dev->name,
+ slave->perm_hwaddr,
+ bond_dev->name, slave_dev->name);
}
if (bond->primary_slave == slave)
eth_hw_addr_random(bond_dev);
if (vlan_uses_dev(bond_dev)) {
- pr_warning("%s: Warning: clearing HW address of %s while it still has VLANs.\n",
- bond_dev->name, bond_dev->name);
- pr_warning("%s: When re-adding slaves, make sure the bond's HW address matches its VLANs'.\n",
- bond_dev->name);
+ pr_warn("%s: Warning: clearing HW address of %s while it still has VLANs\n",
+ bond_dev->name, bond_dev->name);
+ pr_warn("%s: When re-adding slaves, make sure the bond's HW address matches its VLANs\n",
+ bond_dev->name);
}
}
unblock_netpoll_tx();
synchronize_rcu();
+ bond->slave_cnt--;
if (!bond_has_slaves(bond)) {
call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev);
bond_compute_features(bond);
if (!(bond_dev->features & NETIF_F_VLAN_CHALLENGED) &&
(old_features & NETIF_F_VLAN_CHALLENGED))
- pr_info("%s: last VLAN challenged slave %s left bond %s. VLAN blocking is removed\n",
+ pr_info("%s: last VLAN challenged slave %s left bond %s - VLAN blocking is removed\n",
bond_dev->name, slave_dev->name, bond_dev->name);
/* must do this from outside any spinlocks */
if (bond->params.fail_over_mac != BOND_FOM_ACTIVE ||
bond->params.mode != BOND_MODE_ACTIVEBACKUP) {
/* restore original ("permanent") mac address */
- memcpy(addr.sa_data, slave->perm_hwaddr, ETH_ALEN);
+ ether_addr_copy(addr.sa_data, slave->perm_hwaddr);
addr.sa_family = slave_dev->type;
dev_set_mac_address(slave_dev, &addr);
}
ret = bond_release(bond_dev, slave_dev);
if (ret == 0 && !bond_has_slaves(bond)) {
bond_dev->priv_flags |= IFF_DISABLE_NETPOLL;
- pr_info("%s: destroying bond %s.\n",
+ pr_info("%s: Destroying bond %s\n",
bond_dev->name, bond_dev->name);
unregister_netdevice(bond_dev);
}
info->bond_mode = bond->params.mode;
info->miimon = bond->params.miimon;
- read_lock(&bond->lock);
info->num_slaves = bond->slave_cnt;
- read_unlock(&bond->lock);
return 0;
}
int i = 0, res = -ENODEV;
struct slave *slave;
- read_lock(&bond->lock);
bond_for_each_slave(bond, slave, iter) {
if (i++ == (int)info->slave_id) {
res = 0;
break;
}
}
- read_unlock(&bond->lock);
return res;
}
slave->link = BOND_LINK_FAIL;
slave->delay = bond->params.downdelay;
if (slave->delay) {
- pr_info("%s: link status down for %sinterface %s, disabling it in %d ms.\n",
+ pr_info("%s: link status down for %sinterface %s, disabling it in %d ms\n",
bond->dev->name,
(bond->params.mode ==
BOND_MODE_ACTIVEBACKUP) ?
* recovered before downdelay expired
*/
slave->link = BOND_LINK_UP;
- slave->jiffies = jiffies;
- pr_info("%s: link status up again after %d ms for interface %s.\n",
+ slave->last_link_up = jiffies;
+ pr_info("%s: link status up again after %d ms for interface %s\n",
bond->dev->name,
(bond->params.downdelay - slave->delay) *
bond->params.miimon,
slave->delay = bond->params.updelay;
if (slave->delay) {
- pr_info("%s: link status up for interface %s, enabling it in %d ms.\n",
+ pr_info("%s: link status up for interface %s, enabling it in %d ms\n",
bond->dev->name, slave->dev->name,
ignore_updelay ? 0 :
bond->params.updelay *
case BOND_LINK_BACK:
if (!link_state) {
slave->link = BOND_LINK_DOWN;
- pr_info("%s: link status down again after %d ms for interface %s.\n",
+ pr_info("%s: link status down again after %d ms for interface %s\n",
bond->dev->name,
(bond->params.updelay - slave->delay) *
bond->params.miimon,
case BOND_LINK_UP:
slave->link = BOND_LINK_UP;
- slave->jiffies = jiffies;
+ slave->last_link_up = jiffies;
if (bond->params.mode == BOND_MODE_8023AD) {
/* prevent it from being the active one */
bond_set_backup_slave(slave);
}
- pr_info("%s: link status definitely up for interface %s, %u Mbps %s duplex.\n",
+ pr_info("%s: link status definitely up for interface %s, %u Mbps %s duplex\n",
bond->dev->name, slave->dev->name,
slave->speed == SPEED_UNKNOWN ? 0 : slave->speed,
slave->duplex ? "full" : "half");
if (bond->params.mode == BOND_MODE_ACTIVEBACKUP ||
bond->params.mode == BOND_MODE_8023AD)
- bond_set_slave_inactive_flags(slave);
+ bond_set_slave_inactive_flags(slave,
+ BOND_SLAVE_NOTIFY_NOW);
pr_info("%s: link status definitely down for interface %s, disabling it\n",
bond->dev->name, slave->dev->name);
{
struct sk_buff *skb;
- pr_debug("arp %d on slave %s: dst %pI4 src %pI4 vid %d\n", arp_op,
- slave_dev->name, &dest_ip, &src_ip, vlan_id);
+ pr_debug("arp %d on slave %s: dst %pI4 src %pI4 vid %d\n",
+ arp_op, slave_dev->name, &dest_ip, &src_ip, vlan_id);
skb = arp_create(arp_op, ETH_P_ARP, dest_ip, slave_dev, src_ip,
NULL, slave_dev->dev_addr, NULL);
rt = ip_route_output(dev_net(bond->dev), targets[i], 0,
RTO_ONLINK, 0);
if (IS_ERR(rt)) {
- pr_debug("%s: no route to arp_ip_target %pI4\n",
- bond->dev->name, &targets[i]);
+ /* there's no route to target - try to send arp
+ * probe to generate any traffic (arp_validate=0)
+ */
+ if (bond->params.arp_validate && net_ratelimit())
+ pr_warn("%s: no route to arp_ip_target %pI4 and arp_validate is set\n",
+ bond->dev->name, &targets[i]);
+ bond_arp_send(slave->dev, ARPOP_REQUEST, targets[i], 0, 0);
continue;
}
pr_debug("bva: sip %pI4 not found in targets\n", &sip);
return;
}
- slave->last_arp_rx = jiffies;
+ slave->last_rx = jiffies;
slave->target_last_arp_rx[i] = jiffies;
}
struct slave *slave)
{
struct arphdr *arp = (struct arphdr *)skb->data;
+ struct slave *curr_active_slave;
unsigned char *arp_ptr;
__be32 sip, tip;
- int alen;
+ int alen, is_arp = skb->protocol == __cpu_to_be16(ETH_P_ARP);
- if (skb->protocol != __cpu_to_be16(ETH_P_ARP))
+ if (!slave_do_arp_validate(bond, slave)) {
+ if ((slave_do_arp_validate_only(bond, slave) && is_arp) ||
+ !slave_do_arp_validate_only(bond, slave))
+ slave->last_rx = jiffies;
return RX_HANDLER_ANOTHER;
-
- read_lock(&bond->lock);
-
- if (!slave_do_arp_validate(bond, slave))
- goto out_unlock;
+ } else if (!is_arp) {
+ return RX_HANDLER_ANOTHER;
+ }
alen = arp_hdr_len(bond->dev);
bond->params.arp_validate, slave_do_arp_validate(bond, slave),
&sip, &tip);
+ curr_active_slave = rcu_dereference(bond->curr_active_slave);
+
/*
* Backup slaves won't see the ARP reply, but do come through
* here for each ARP probe (so we swap the sip/tip to validate
* is done to avoid endless looping when we can't reach the
* arp_ip_target and fool ourselves with our own arp requests.
*/
+
if (bond_is_active_slave(slave))
bond_validate_arp(bond, slave, sip, tip);
- else if (bond->curr_active_slave &&
- time_after(slave_last_rx(bond, bond->curr_active_slave),
- bond->curr_active_slave->jiffies))
+ else if (curr_active_slave &&
+ time_after(slave_last_rx(bond, curr_active_slave),
+ curr_active_slave->last_link_up))
bond_validate_arp(bond, slave, tip, sip);
out_unlock:
- read_unlock(&bond->lock);
if (arp != (struct arphdr *)skb->data)
kfree(arp);
return RX_HANDLER_ANOTHER;
oldcurrent = ACCESS_ONCE(bond->curr_active_slave);
/* see if any of the previous devices are up now (i.e. they have
* xmt and rcv traffic). the curr_active_slave does not come into
- * the picture unless it is null. also, slave->jiffies is not needed
- * here because we send an arp on each slave and give a slave as
- * long as it needs to get the tx/rx within the delta.
+ * the picture unless it is null. also, slave->last_link_up is not
+ * needed here because we send an arp on each slave and give a slave
+ * as long as it needs to get the tx/rx within the delta.
* TODO: what about up/down delay in arp mode? it wasn't here before
* so it can wait
*/
if (slave->link != BOND_LINK_UP) {
if (bond_time_in_interval(bond, trans_start, 1) &&
- bond_time_in_interval(bond, slave->dev->last_rx, 1)) {
+ bond_time_in_interval(bond, slave->last_rx, 1)) {
slave->link = BOND_LINK_UP;
slave_state_changed = 1;
* is closed.
*/
if (!oldcurrent) {
- pr_info("%s: link status definitely up for interface %s, ",
+ pr_info("%s: link status definitely up for interface %s\n",
bond->dev->name,
slave->dev->name);
do_failover = 1;
* if we don't know our ip yet
*/
if (!bond_time_in_interval(bond, trans_start, 2) ||
- !bond_time_in_interval(bond, slave->dev->last_rx, 2)) {
+ !bond_time_in_interval(bond, slave->last_rx, 2)) {
slave->link = BOND_LINK_DOWN;
slave_state_changed = 1;
if (slave->link_failure_count < UINT_MAX)
slave->link_failure_count++;
- pr_info("%s: interface %s is now down.\n",
- bond->dev->name,
- slave->dev->name);
+ pr_info("%s: interface %s is now down\n",
+ bond->dev->name, slave->dev->name);
if (slave == oldcurrent)
do_failover = 1;
* active. This avoids bouncing, as the last receive
* times need a full ARP monitor cycle to be updated.
*/
- if (bond_time_in_interval(bond, slave->jiffies, 2))
+ if (bond_time_in_interval(bond, slave->last_link_up, 2))
continue;
/*
slave->link = BOND_LINK_UP;
if (bond->current_arp_slave) {
bond_set_slave_inactive_flags(
- bond->current_arp_slave);
+ bond->current_arp_slave,
+ BOND_SLAVE_NOTIFY_NOW);
bond->current_arp_slave = NULL;
}
- pr_info("%s: link status definitely up for interface %s.\n",
+ pr_info("%s: link status definitely up for interface %s\n",
bond->dev->name, slave->dev->name);
if (!bond->curr_active_slave ||
slave->link_failure_count++;
slave->link = BOND_LINK_DOWN;
- bond_set_slave_inactive_flags(slave);
+ bond_set_slave_inactive_flags(slave,
+ BOND_SLAVE_NOTIFY_NOW);
pr_info("%s: link status definitely down for interface %s, disabling it\n",
bond->dev->name, slave->dev->name);
/*
* Send ARP probes for active-backup mode ARP monitor.
+ *
+ * Called with rcu_read_lock hold.
*/
static bool bond_ab_arp_probe(struct bonding *bond)
{
struct slave *slave, *before = NULL, *new_slave = NULL,
- *curr_arp_slave, *curr_active_slave;
+ *curr_arp_slave = rcu_dereference(bond->current_arp_slave),
+ *curr_active_slave = rcu_dereference(bond->curr_active_slave);
struct list_head *iter;
bool found = false;
-
- rcu_read_lock();
- curr_arp_slave = rcu_dereference(bond->current_arp_slave);
- curr_active_slave = rcu_dereference(bond->curr_active_slave);
+ bool should_notify_rtnl = BOND_SLAVE_NOTIFY_LATER;
if (curr_arp_slave && curr_active_slave)
pr_info("PROBE: c_arp %s && cas %s BAD\n",
if (curr_active_slave) {
bond_arp_send_all(bond, curr_active_slave);
- rcu_read_unlock();
- return true;
+ return should_notify_rtnl;
}
- rcu_read_unlock();
/* if we don't have a curr_active_slave, search for the next available
* backup slave from the current_arp_slave and make it the candidate
* for becoming the curr_active_slave
*/
- if (!rtnl_trylock())
- return false;
- /* curr_arp_slave might have gone away */
- curr_arp_slave = ACCESS_ONCE(bond->current_arp_slave);
-
if (!curr_arp_slave) {
- curr_arp_slave = bond_first_slave(bond);
- if (!curr_arp_slave) {
- rtnl_unlock();
- return true;
- }
+ curr_arp_slave = bond_first_slave_rcu(bond);
+ if (!curr_arp_slave)
+ return should_notify_rtnl;
}
- bond_set_slave_inactive_flags(curr_arp_slave);
+ bond_set_slave_inactive_flags(curr_arp_slave, BOND_SLAVE_NOTIFY_LATER);
- bond_for_each_slave(bond, slave, iter) {
+ bond_for_each_slave_rcu(bond, slave, iter) {
if (!found && !before && IS_UP(slave->dev))
before = slave;
if (slave->link_failure_count < UINT_MAX)
slave->link_failure_count++;
- bond_set_slave_inactive_flags(slave);
+ bond_set_slave_inactive_flags(slave,
+ BOND_SLAVE_NOTIFY_LATER);
- pr_info("%s: backup interface %s is now down.\n",
+ pr_info("%s: backup interface %s is now down\n",
bond->dev->name, slave->dev->name);
}
if (slave == curr_arp_slave)
if (!new_slave && before)
new_slave = before;
- if (!new_slave) {
- rtnl_unlock();
- return true;
- }
+ if (!new_slave)
+ goto check_state;
new_slave->link = BOND_LINK_BACK;
- bond_set_slave_active_flags(new_slave);
+ bond_set_slave_active_flags(new_slave, BOND_SLAVE_NOTIFY_LATER);
bond_arp_send_all(bond, new_slave);
- new_slave->jiffies = jiffies;
+ new_slave->last_link_up = jiffies;
rcu_assign_pointer(bond->current_arp_slave, new_slave);
- rtnl_unlock();
- return true;
+check_state:
+ bond_for_each_slave_rcu(bond, slave, iter) {
+ if (slave->should_notify) {
+ should_notify_rtnl = BOND_SLAVE_NOTIFY_NOW;
+ break;
+ }
+ }
+ return should_notify_rtnl;
}
static void bond_activebackup_arp_mon(struct work_struct *work)
{
struct bonding *bond = container_of(work, struct bonding,
arp_work.work);
- bool should_notify_peers = false, should_commit = false;
+ bool should_notify_peers = false;
+ bool should_notify_rtnl = false;
int delta_in_ticks;
delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval);
goto re_arm;
rcu_read_lock();
+
should_notify_peers = bond_should_notify_peers(bond);
- should_commit = bond_ab_arp_inspect(bond);
- rcu_read_unlock();
- if (should_commit) {
+ if (bond_ab_arp_inspect(bond)) {
+ rcu_read_unlock();
+
/* Race avoidance with bond_close flush of workqueue */
if (!rtnl_trylock()) {
delta_in_ticks = 1;
}
bond_ab_arp_commit(bond);
+
rtnl_unlock();
+ rcu_read_lock();
}
- if (!bond_ab_arp_probe(bond)) {
- /* rtnl locking failed, re-arm */
- delta_in_ticks = 1;
- should_notify_peers = false;
- }
+ should_notify_rtnl = bond_ab_arp_probe(bond);
+ rcu_read_unlock();
re_arm:
if (bond->params.arp_interval)
queue_delayed_work(bond->wq, &bond->arp_work, delta_in_ticks);
- if (should_notify_peers) {
+ if (should_notify_peers || should_notify_rtnl) {
if (!rtnl_trylock())
return;
- call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
+
+ if (should_notify_peers)
+ call_netdevice_notifiers(NETDEV_NOTIFY_PEERS,
+ bond->dev);
+ if (should_notify_rtnl)
+ bond_slave_state_notify(bond);
+
rtnl_unlock();
}
}
break;
}
- pr_info("%s: Primary slave changed to %s, reselecting active slave.\n",
- bond->dev->name, bond->primary_slave ? slave_dev->name :
- "none");
+ pr_info("%s: Primary slave changed to %s, reselecting active slave\n",
+ bond->dev->name,
+ bond->primary_slave ? slave_dev->name : "none");
block_netpoll_tx();
write_lock_bh(&bond->curr_slave_lock);
struct net_device *event_dev = netdev_notifier_info_to_dev(ptr);
pr_debug("event_dev: %s, event: %lx\n",
- event_dev ? event_dev->name : "None",
- event);
+ event_dev ? event_dev->name : "None", event);
if (!(event_dev->priv_flags & IFF_BONDING))
return NOTIFY_DONE;
bond_for_each_slave(bond, slave, iter) {
if ((bond->params.mode == BOND_MODE_ACTIVEBACKUP)
&& (slave != bond->curr_active_slave)) {
- bond_set_slave_inactive_flags(slave);
+ bond_set_slave_inactive_flags(slave,
+ BOND_SLAVE_NOTIFY_NOW);
} else {
- bond_set_slave_active_flags(slave);
+ bond_set_slave_active_flags(slave,
+ BOND_SLAVE_NOTIFY_NOW);
}
}
read_unlock(&bond->curr_slave_lock);
if (bond->params.arp_interval) { /* arp interval, in milliseconds. */
queue_delayed_work(bond->wq, &bond->arp_work, 0);
- if (bond->params.arp_validate)
- bond->recv_probe = bond_arp_rcv;
+ bond->recv_probe = bond_arp_rcv;
}
if (bond->params.mode == BOND_MODE_8023AD) {
struct list_head *iter;
int res = 0;
- pr_debug("bond=%p, name=%s, new_mtu=%d\n", bond,
- (bond_dev ? bond_dev->name : "None"), new_mtu);
+ pr_debug("bond=%p, name=%s, new_mtu=%d\n",
+ bond, bond_dev ? bond_dev->name : "None", new_mtu);
/* Can't hold bond->lock with bh disabled here since
* some base drivers panic. On the other hand we can't
bond_for_each_slave(bond, slave, iter) {
pr_debug("s %p c_m %p\n",
- slave,
- slave->dev->netdev_ops->ndo_change_mtu);
+ slave, slave->dev->netdev_ops->ndo_change_mtu);
res = dev_set_mtu(slave->dev, new_mtu);
*/
bond_for_each_slave(bond, slave, iter) {
- const struct net_device_ops *slave_ops = slave->dev->netdev_ops;
pr_debug("slave %p %s\n", slave, slave->dev->name);
-
- if (slave_ops->ndo_set_mac_address == NULL) {
- res = -EOPNOTSUPP;
- pr_debug("EOPNOTSUPP %s\n", slave->dev->name);
- goto unwind;
- }
-
res = dev_set_mac_address(slave->dev, addr);
if (res) {
/* TODO: consider downing the slave
/* Release the bonded slaves */
bond_for_each_slave(bond, slave, iter)
__bond_release_one(bond_dev, slave->dev, true);
- pr_info("%s: released all slaves\n", bond_dev->name);
+ pr_info("%s: Released all slaves\n", bond_dev->name);
list_del(&bond->bond_list);
/*------------------------- Module initialization ---------------------------*/
-int bond_parm_tbl_lookup(int mode, const struct bond_parm_tbl *tbl)
-{
- int i;
-
- for (i = 0; tbl[i].modename; i++)
- if (mode == tbl[i].mode)
- return tbl[i].mode;
-
- return -1;
-}
-
-static int bond_parm_tbl_lookup_name(const char *modename,
- const struct bond_parm_tbl *tbl)
-{
- int i;
-
- for (i = 0; tbl[i].modename; i++)
- if (strcmp(modename, tbl[i].modename) == 0)
- return tbl[i].mode;
-
- return -1;
-}
-
-/*
- * Convert string input module parms. Accept either the
- * number of the mode or its string name. A bit complicated because
- * some mode names are substrings of other names, and calls from sysfs
- * may have whitespace in the name (trailing newlines, for example).
- */
-int bond_parse_parm(const char *buf, const struct bond_parm_tbl *tbl)
-{
- int modeint;
- char *p, modestr[BOND_MAX_MODENAME_LEN + 1];
-
- for (p = (char *)buf; *p; p++)
- if (!(isdigit(*p) || isspace(*p)))
- break;
-
- if (*p && sscanf(buf, "%20s", modestr) != 0)
- return bond_parm_tbl_lookup_name(modestr, tbl);
- else if (sscanf(buf, "%d", &modeint) != 0)
- return bond_parm_tbl_lookup(modeint, tbl);
-
- return -1;
-}
-
static int bond_check_params(struct bond_params *params)
{
int arp_validate_value, fail_over_mac_value, primary_reselect_value, i;
- struct bond_opt_value newval, *valptr;
+ struct bond_opt_value newval;
+ const struct bond_opt_value *valptr;
int arp_all_targets_value;
/*
if ((bond_mode != BOND_MODE_XOR) &&
(bond_mode != BOND_MODE_8023AD)) {
pr_info("xmit_hash_policy param is irrelevant in mode %s\n",
- bond_mode_name(bond_mode));
+ bond_mode_name(bond_mode));
} else {
bond_opt_initstr(&newval, xmit_hash_policy);
valptr = bond_opt_parse(bond_opt_get(BOND_OPT_XMIT_HASH),
}
params->ad_select = valptr->value;
if (bond_mode != BOND_MODE_8023AD)
- pr_warning("ad_select param only affects 802.3ad mode\n");
+ pr_warn("ad_select param only affects 802.3ad mode\n");
} else {
params->ad_select = BOND_AD_STABLE;
}
if (max_bonds < 0) {
- pr_warning("Warning: max_bonds (%d) not in range %d-%d, so it was reset to BOND_DEFAULT_MAX_BONDS (%d)\n",
- max_bonds, 0, INT_MAX, BOND_DEFAULT_MAX_BONDS);
+ pr_warn("Warning: max_bonds (%d) not in range %d-%d, so it was reset to BOND_DEFAULT_MAX_BONDS (%d)\n",
+ max_bonds, 0, INT_MAX, BOND_DEFAULT_MAX_BONDS);
max_bonds = BOND_DEFAULT_MAX_BONDS;
}
if (miimon < 0) {
- pr_warning("Warning: miimon module parameter (%d), not in range 0-%d, so it was reset to 0\n",
- miimon, INT_MAX);
+ pr_warn("Warning: miimon module parameter (%d), not in range 0-%d, so it was reset to 0\n",
+ miimon, INT_MAX);
miimon = 0;
}
if (updelay < 0) {
- pr_warning("Warning: updelay module parameter (%d), not in range 0-%d, so it was reset to 0\n",
- updelay, INT_MAX);
+ pr_warn("Warning: updelay module parameter (%d), not in range 0-%d, so it was reset to 0\n",
+ updelay, INT_MAX);
updelay = 0;
}
if (downdelay < 0) {
- pr_warning("Warning: downdelay module parameter (%d), not in range 0-%d, so it was reset to 0\n",
- downdelay, INT_MAX);
+ pr_warn("Warning: downdelay module parameter (%d), not in range 0-%d, so it was reset to 0\n",
+ downdelay, INT_MAX);
downdelay = 0;
}
if ((use_carrier != 0) && (use_carrier != 1)) {
- pr_warning("Warning: use_carrier module parameter (%d), not of valid value (0/1), so it was set to 1\n",
- use_carrier);
+ pr_warn("Warning: use_carrier module parameter (%d), not of valid value (0/1), so it was set to 1\n",
+ use_carrier);
use_carrier = 1;
}
if (num_peer_notif < 0 || num_peer_notif > 255) {
- pr_warning("Warning: num_grat_arp/num_unsol_na (%d) not in range 0-255 so it was reset to 1\n",
- num_peer_notif);
+ pr_warn("Warning: num_grat_arp/num_unsol_na (%d) not in range 0-255 so it was reset to 1\n",
+ num_peer_notif);
num_peer_notif = 1;
}
/* reset values for 802.3ad/TLB/ALB */
if (BOND_NO_USES_ARP(bond_mode)) {
if (!miimon) {
- pr_warning("Warning: miimon must be specified, otherwise bonding will not detect link failure, speed and duplex which are essential for 802.3ad operation\n");
- pr_warning("Forcing miimon to 100msec\n");
+ pr_warn("Warning: miimon must be specified, otherwise bonding will not detect link failure, speed and duplex which are essential for 802.3ad operation\n");
+ pr_warn("Forcing miimon to 100msec\n");
miimon = BOND_DEFAULT_MIIMON;
}
}
if (tx_queues < 1 || tx_queues > 255) {
- pr_warning("Warning: tx_queues (%d) should be between "
- "1 and 255, resetting to %d\n",
- tx_queues, BOND_DEFAULT_TX_QUEUES);
+ pr_warn("Warning: tx_queues (%d) should be between 1 and 255, resetting to %d\n",
+ tx_queues, BOND_DEFAULT_TX_QUEUES);
tx_queues = BOND_DEFAULT_TX_QUEUES;
}
if ((all_slaves_active != 0) && (all_slaves_active != 1)) {
- pr_warning("Warning: all_slaves_active module parameter (%d), "
- "not of valid value (0/1), so it was set to "
- "0\n", all_slaves_active);
+ pr_warn("Warning: all_slaves_active module parameter (%d), not of valid value (0/1), so it was set to 0\n",
+ all_slaves_active);
all_slaves_active = 0;
}
if (resend_igmp < 0 || resend_igmp > 255) {
- pr_warning("Warning: resend_igmp (%d) should be between "
- "0 and 255, resetting to %d\n",
- resend_igmp, BOND_DEFAULT_RESEND_IGMP);
+ pr_warn("Warning: resend_igmp (%d) should be between 0 and 255, resetting to %d\n",
+ resend_igmp, BOND_DEFAULT_RESEND_IGMP);
resend_igmp = BOND_DEFAULT_RESEND_IGMP;
}
/* just warn the user the up/down delay will have
* no effect since miimon is zero...
*/
- pr_warning("Warning: miimon module parameter not set and updelay (%d) or downdelay (%d) module parameter is set; updelay and downdelay have no effect unless miimon is set\n",
- updelay, downdelay);
+ pr_warn("Warning: miimon module parameter not set and updelay (%d) or downdelay (%d) module parameter is set; updelay and downdelay have no effect unless miimon is set\n",
+ updelay, downdelay);
}
} else {
/* don't allow arp monitoring */
if (arp_interval) {
- pr_warning("Warning: miimon (%d) and arp_interval (%d) can't be used simultaneously, disabling ARP monitoring\n",
- miimon, arp_interval);
+ pr_warn("Warning: miimon (%d) and arp_interval (%d) can't be used simultaneously, disabling ARP monitoring\n",
+ miimon, arp_interval);
arp_interval = 0;
}
if ((updelay % miimon) != 0) {
- pr_warning("Warning: updelay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n",
- updelay, miimon,
- (updelay / miimon) * miimon);
+ pr_warn("Warning: updelay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n",
+ updelay, miimon, (updelay / miimon) * miimon);
}
updelay /= miimon;
if ((downdelay % miimon) != 0) {
- pr_warning("Warning: downdelay (%d) is not a multiple of miimon (%d), downdelay rounded to %d ms\n",
- downdelay, miimon,
- (downdelay / miimon) * miimon);
+ pr_warn("Warning: downdelay (%d) is not a multiple of miimon (%d), downdelay rounded to %d ms\n",
+ downdelay, miimon,
+ (downdelay / miimon) * miimon);
}
downdelay /= miimon;
}
if (arp_interval < 0) {
- pr_warning("Warning: arp_interval module parameter (%d) , not in range 0-%d, so it was reset to 0\n",
- arp_interval, INT_MAX);
+ pr_warn("Warning: arp_interval module parameter (%d), not in range 0-%d, so it was reset to 0\n",
+ arp_interval, INT_MAX);
arp_interval = 0;
}
__be32 ip;
if (!in4_pton(arp_ip_target[i], -1, (u8 *)&ip, -1, NULL) ||
IS_IP_TARGET_UNUSABLE_ADDRESS(ip)) {
- pr_warning("Warning: bad arp_ip_target module parameter (%s), ARP monitoring will not be performed\n",
- arp_ip_target[i]);
+ pr_warn("Warning: bad arp_ip_target module parameter (%s), ARP monitoring will not be performed\n",
+ arp_ip_target[i]);
arp_interval = 0;
} else {
if (bond_get_targets_ip(arp_target, ip) == -1)
arp_target[arp_ip_count++] = ip;
else
- pr_warning("Warning: duplicate address %pI4 in arp_ip_target, skipping\n",
- &ip);
+ pr_warn("Warning: duplicate address %pI4 in arp_ip_target, skipping\n",
+ &ip);
}
}
if (arp_interval && !arp_ip_count) {
/* don't allow arping if no arp_ip_target given... */
- pr_warning("Warning: arp_interval module parameter (%d) specified without providing an arp_ip_target parameter, arp_interval was reset to 0\n",
- arp_interval);
+ pr_warn("Warning: arp_interval module parameter (%d) specified without providing an arp_ip_target parameter, arp_interval was reset to 0\n",
+ arp_interval);
arp_interval = 0;
}
if (arp_validate) {
- if (bond_mode != BOND_MODE_ACTIVEBACKUP) {
- pr_err("arp_validate only supported in active-backup mode\n");
- return -EINVAL;
- }
if (!arp_interval) {
pr_err("arp_validate requires arp_interval\n");
return -EINVAL;
arp_interval, valptr->string, arp_ip_count);
for (i = 0; i < arp_ip_count; i++)
- pr_info(" %s", arp_ip_target[i]);
+ pr_cont(" %s", arp_ip_target[i]);
- pr_info("\n");
+ pr_cont("\n");
} else if (max_bonds) {
/* miimon and arp_interval not set, we need one so things
* work as expected, see bonding.txt for details
*/
- pr_debug("Warning: either miimon or arp_interval and arp_ip_target module parameters must be specified, otherwise bonding will not detect link failures! see bonding.txt for details.\n");
+ pr_debug("Warning: either miimon or arp_interval and arp_ip_target module parameters must be specified, otherwise bonding will not detect link failures! see bonding.txt for details\n");
}
if (primary && !USES_PRIMARY(bond_mode)) {
/* currently, using a primary only makes sense
* in active backup, TLB or ALB modes
*/
- pr_warning("Warning: %s primary device specified but has no effect in %s mode\n",
- primary, bond_mode_name(bond_mode));
+ pr_warn("Warning: %s primary device specified but has no effect in %s mode\n",
+ primary, bond_mode_name(bond_mode));
primary = NULL;
}
}
fail_over_mac_value = valptr->value;
if (bond_mode != BOND_MODE_ACTIVEBACKUP)
- pr_warning("Warning: fail_over_mac only affects active-backup mode.\n");
+ pr_warn("Warning: fail_over_mac only affects active-backup mode\n");
} else {
fail_over_mac_value = BOND_FOM_NONE;
}
if (lp_interval == 0) {
- pr_warning("Warning: ip_interval must be between 1 and %d, so it was reset to %d\n",
- INT_MAX, BOND_ALB_DEFAULT_LP_INTERVAL);
+ pr_warn("Warning: ip_interval must be between 1 and %d, so it was reset to %d\n",
+ INT_MAX, BOND_ALB_DEFAULT_LP_INTERVAL);
lp_interval = BOND_ALB_DEFAULT_LP_INTERVAL;
}
projects / cascardo / linux.git / blobdiff