* ARP on active-backup slaves with arp_validate enabled.
*/
static bool bond_should_deliver_exact_match(struct sk_buff *skb,
- struct net_device *slave_dev,
- struct net_device *bond_dev)
+ struct slave *slave,
+ struct bonding *bond)
{
- if (slave_dev->priv_flags & IFF_SLAVE_INACTIVE) {
- if (slave_dev->priv_flags & IFF_SLAVE_NEEDARP &&
+ if (bond_is_slave_inactive(slave)) {
+ if (slave_do_arp_validate(bond, slave) &&
skb->protocol == __cpu_to_be16(ETH_P_ARP))
return false;
- if (bond_dev->priv_flags & IFF_MASTER_ALB &&
+ if (bond->params.mode == BOND_MODE_ALB &&
skb->pkt_type != PACKET_BROADCAST &&
skb->pkt_type != PACKET_MULTICAST)
return false;
- if (bond_dev->priv_flags & IFF_MASTER_8023AD &&
+ if (bond->params.mode == BOND_MODE_8023AD &&
skb->protocol == __cpu_to_be16(ETH_P_SLOW))
return false;
return false;
}
-static struct sk_buff *bond_handle_frame(struct sk_buff *skb)
+static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
{
- struct net_device *slave_dev;
+ struct sk_buff *skb = *pskb;
+ struct slave *slave;
struct net_device *bond_dev;
+ struct bonding *bond;
+
+ slave = bond_slave_get_rcu(skb->dev);
+ bond_dev = ACCESS_ONCE(slave->dev->master);
+ if (unlikely(!bond_dev))
+ return RX_HANDLER_PASS;
skb = skb_share_check(skb, GFP_ATOMIC);
if (unlikely(!skb))
- return NULL;
- slave_dev = skb->dev;
- bond_dev = ACCESS_ONCE(slave_dev->master);
- if (unlikely(!bond_dev))
- return skb;
+ return RX_HANDLER_CONSUMED;
+
+ *pskb = skb;
+
+ bond = netdev_priv(bond_dev);
- if (bond_dev->priv_flags & IFF_MASTER_ARPMON)
- slave_dev->last_rx = jiffies;
+ if (bond->params.arp_interval)
+ slave->dev->last_rx = jiffies;
- if (bond_should_deliver_exact_match(skb, slave_dev, bond_dev)) {
- skb->deliver_no_wcard = 1;
- return skb;
+ if (bond_should_deliver_exact_match(skb, slave, bond)) {
+ return RX_HANDLER_EXACT;
}
skb->dev = bond_dev;
- if (bond_dev->priv_flags & IFF_MASTER_ALB &&
+ if (bond->params.mode == BOND_MODE_ALB &&
bond_dev->priv_flags & IFF_BRIDGE_PORT &&
skb->pkt_type == PACKET_HOST) {
if (unlikely(skb_cow_head(skb,
skb->data - skb_mac_header(skb)))) {
kfree_skb(skb);
- return NULL;
+ return RX_HANDLER_CONSUMED;
}
memcpy(eth_hdr(skb)->h_dest, bond_dev->dev_addr, ETH_ALEN);
}
- return skb;
+ return RX_HANDLER_ANOTHER;
}
/* enslave device <slave> to bond device <master> */
pr_debug("Error %d calling netdev_set_bond_master\n", res);
goto err_restore_mac;
}
- res = netdev_rx_handler_register(slave_dev, bond_handle_frame, NULL);
+ res = netdev_rx_handler_register(slave_dev, bond_handle_frame,
+ new_slave);
if (res) {
pr_debug("Error %d calling netdev_rx_handler_register\n", res);
goto err_unset_master;
break;
case BOND_MODE_TLB:
case BOND_MODE_ALB:
- new_slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(new_slave);
bond_set_slave_inactive_flags(new_slave);
bond_select_active_slave(bond);
break;
pr_debug("This slave is always active in trunk mode\n");
/* always active in trunk mode */
- new_slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(new_slave);
/* In trunking mode there is little meaning to curr_active_slave
* anyway (it holds no special properties of the bond device),
pr_info("%s: enslaving %s as a%s interface with a%s link.\n",
bond_dev->name, slave_dev->name,
- new_slave->state == BOND_STATE_ACTIVE ? "n active" : " backup",
+ bond_is_active_slave(new_slave) ? "n active" : " backup",
new_slave->link != BOND_LINK_DOWN ? "n up" : " down");
/* enslave is successful */
err_unreg_rxhandler:
netdev_rx_handler_unregister(slave_dev);
+ synchronize_net();
err_unset_master:
netdev_set_bond_master(slave_dev, NULL);
pr_info("%s: releasing %s interface %s\n",
bond_dev->name,
- (slave->state == BOND_STATE_ACTIVE) ? "active" : "backup",
+ bond_is_active_slave(slave) ? "active" : "backup",
slave_dev->name);
oldcurrent = bond->curr_active_slave;
}
netdev_rx_handler_unregister(slave_dev);
+ synchronize_net();
netdev_set_bond_master(slave_dev, NULL);
slave_disable_netpoll(slave);
dev_set_mtu(slave_dev, slave->original_mtu);
- slave_dev->priv_flags &= ~(IFF_MASTER_8023AD | IFF_MASTER_ALB |
- IFF_SLAVE_INACTIVE | IFF_BONDING |
- IFF_SLAVE_NEEDARP);
+ slave_dev->priv_flags &= ~IFF_BONDING;
kfree(slave);
}
netdev_rx_handler_unregister(slave_dev);
+ synchronize_net();
netdev_set_bond_master(slave_dev, NULL);
slave_disable_netpoll(slave);
dev_set_mac_address(slave_dev, &addr);
}
- slave_dev->priv_flags &= ~(IFF_MASTER_8023AD | IFF_MASTER_ALB |
- IFF_SLAVE_INACTIVE);
-
kfree(slave);
/* re-acquire the lock before getting the next slave */
res = 0;
strcpy(info->slave_name, slave->dev->name);
info->link = slave->link;
- info->state = slave->state;
+ info->state = bond_slave_state(slave);
info->link_failure_count = slave->link_failure_count;
break;
}
bond->dev->name,
(bond->params.mode ==
BOND_MODE_ACTIVEBACKUP) ?
- ((slave->state == BOND_STATE_ACTIVE) ?
+ (bond_is_active_slave(slave) ?
"active " : "backup ") : "",
slave->dev->name,
bond->params.downdelay * bond->params.miimon);
if (bond->params.mode == BOND_MODE_8023AD) {
/* prevent it from being the active one */
- slave->state = BOND_STATE_BACKUP;
+ bond_set_backup_slave(slave);
} else if (bond->params.mode != BOND_MODE_ACTIVEBACKUP) {
/* make it immediately active */
- slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(slave);
} else if (slave != bond->primary_slave) {
/* prevent it from being the active one */
- slave->state = BOND_STATE_BACKUP;
+ bond_set_backup_slave(slave);
}
bond_update_speed_duplex(slave);
memcpy(&tip, arp_ptr, 4);
pr_debug("bond_arp_rcv: %s %s/%d av %d sv %d sip %pI4 tip %pI4\n",
- bond->dev->name, slave->dev->name, slave->state,
+ bond->dev->name, slave->dev->name, bond_slave_state(slave),
bond->params.arp_validate, slave_do_arp_validate(bond, slave),
&sip, &tip);
* the active, through one switch, the router, then the other
* switch before reaching the backup.
*/
- if (slave->state == BOND_STATE_ACTIVE)
+ if (bond_is_active_slave(slave))
bond_validate_arp(bond, slave, sip, tip);
else
bond_validate_arp(bond, slave, tip, sip);
slave->dev->last_rx + delta_in_ticks)) {
slave->link = BOND_LINK_UP;
- slave->state = BOND_STATE_ACTIVE;
+ bond_set_active_slave(slave);
/* primary_slave has no meaning in round-robin
* mode. the window of a slave being up and
slave->dev->last_rx + 2 * delta_in_ticks)) {
slave->link = BOND_LINK_DOWN;
- slave->state = BOND_STATE_BACKUP;
+ bond_set_backup_slave(slave);
if (slave->link_failure_count < UINT_MAX)
slave->link_failure_count++;
* gives each slave a chance to tx/rx traffic
* before being taken out
*/
- if (slave->state == BOND_STATE_BACKUP &&
+ if (!bond_is_active_slave(slave) &&
!bond->current_arp_slave &&
!time_in_range(jiffies,
slave_last_rx(bond, slave) - delta_in_ticks,
* the bond has an IP address)
*/
trans_start = dev_trans_start(slave->dev);
- if ((slave->state == BOND_STATE_ACTIVE) &&
+ if (bond_is_active_slave(slave) &&
(!time_in_range(jiffies,
trans_start - delta_in_ticks,
trans_start + 2 * delta_in_ticks) ||
bond_for_each_slave_from(bond, slave, i, start_at) {
if (IS_UP(slave->dev) &&
(slave->link == BOND_LINK_UP) &&
- (slave->state == BOND_STATE_ACTIVE)) {
+ bond_is_active_slave(slave)) {
res = bond_dev_queue_xmit(bond, skb, slave->dev);
break;
}
bond_for_each_slave_from(bond, slave, i, start_at) {
if (IS_UP(slave->dev) &&
(slave->link == BOND_LINK_UP) &&
- (slave->state == BOND_STATE_ACTIVE)) {
+ bond_is_active_slave(slave)) {
res = bond_dev_queue_xmit(bond, skb, slave->dev);
break;
}
bond_for_each_slave_from(bond, slave, i, start_at) {
if (IS_UP(slave->dev) &&
(slave->link == BOND_LINK_UP) &&
- (slave->state == BOND_STATE_ACTIVE)) {
+ bond_is_active_slave(slave)) {
if (tx_dev) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
if (!skb2) {
case BOND_MODE_BROADCAST:
break;
case BOND_MODE_8023AD:
- bond_set_master_3ad_flags(bond);
bond_set_xmit_hash_policy(bond);
break;
case BOND_MODE_ALB:
- bond_set_master_alb_flags(bond);
/* FALLTHRU */
case BOND_MODE_TLB:
break;
bond_dev->priv_flags |= IFF_BONDING;
bond_dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
- if (bond->params.arp_interval)
- bond_dev->priv_flags |= IFF_MASTER_ARPMON;
-
/* At first, we block adding VLANs. That's the only way to
* prevent problems that occur when adding VLANs over an
* empty bond. The block will be removed once non-challenged
bond_set_lockdep_class(bond_dev);
- netif_carrier_off(bond_dev);
-
bond_create_proc_entry(bond);
list_add_tail(&bond->bond_list, &bn->dev_list);
res = register_netdevice(bond_dev);
+ netif_carrier_off(bond_dev);
+
out:
rtnl_unlock();
if (res < 0)
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / blobdiff