aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/bonding/bond_main.c
diff options
context:
space:
mode:
authorJay Vosburgh <fubar@us.ibm.com>2006-02-21 16:36:44 -0800
committerJeff Garzik <jeff@garzik.org>2006-03-03 20:58:00 -0500
commit8f903c708fcc2b579ebf16542bf6109bad593a1d (patch)
tree8fb890c05d962c2dd63f8dbc960efbd0b09802d2 /drivers/net/bonding/bond_main.c
parentebe19a4ed78d4a11a7e01cdeda25f91b7f2fcb5a (diff)
[PATCH] bonding: suppress duplicate packets
Originally submitted by Kenzo Iwami; his original description is: The current bonding driver receives duplicate packets when broadcast/ multicast packets are sent by other devices or packets are flooded by the switch. In this patch, new flags are added in priv_flags of net_device structure to let the bonding driver discard duplicate packets in dev.c:skb_bond(). Modified by Jay Vosburgh to change a define name, update some comments, rearrange the new skb_bond() for clarity, clear all bonding priv_flags on slave release, and update the driver version. Signed-off-by: Kenzo Iwami <k-iwami@cj.jp.nec.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
-rw-r--r--drivers/net/bonding/bond_main.c43
1 files changed, 22 insertions, 21 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index bcf9f17daf0..623c87a8361 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1040,6 +1040,10 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active)
if ((bond->params.mode == BOND_MODE_TLB) ||
(bond->params.mode == BOND_MODE_ALB)) {
bond_alb_handle_active_change(bond, new_active);
+ if (old_active)
+ bond_set_slave_inactive_flags(old_active);
+ if (new_active)
+ bond_set_slave_active_flags(new_active);
} else {
bond->curr_active_slave = new_active;
}
@@ -1443,15 +1447,16 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
switch (bond->params.mode) {
case BOND_MODE_ACTIVEBACKUP:
- /* if we're in active-backup mode, we need one and only one active
- * interface. The backup interfaces will have their NOARP flag set
- * because we need them to be completely deaf and not to respond to
- * any ARP request on the network to avoid fooling a switch. Thus,
- * since we guarantee that curr_active_slave always point to the last
- * usable interface, we just have to verify this interface's flag.
+ /* if we're in active-backup mode, we need one and
+ * only one active interface. The backup interfaces
+ * will have their SLAVE_INACTIVE flag set because we
+ * need them to be drop all packets. Thus, since we
+ * guarantee that curr_active_slave always point to
+ * the last usable interface, we just have to verify
+ * this interface's flag.
*/
if (((!bond->curr_active_slave) ||
- (bond->curr_active_slave->dev->flags & IFF_NOARP)) &&
+ (bond->curr_active_slave->dev->priv_flags & IFF_SLAVE_INACTIVE)) &&
(new_slave->link != BOND_LINK_DOWN)) {
dprintk("This is the first active slave\n");
/* first slave or no active slave yet, and this link
@@ -1492,6 +1497,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
* is OK, so make this interface the active one
*/
bond_change_active_slave(bond, new_slave);
+ } else {
+ bond_set_slave_inactive_flags(new_slave);
}
break;
default:
@@ -1724,13 +1731,8 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
addr.sa_family = slave_dev->type;
dev_set_mac_address(slave_dev, &addr);
- /* restore the original state of the
- * IFF_NOARP flag that might have been
- * set by bond_set_slave_inactive_flags()
- */
- if ((slave->original_flags & IFF_NOARP) == 0) {
- slave_dev->flags &= ~IFF_NOARP;
- }
+ slave_dev->priv_flags &= ~(IFF_MASTER_8023AD | IFF_MASTER_ALB |
+ IFF_SLAVE_INACTIVE);
kfree(slave);
@@ -1816,12 +1818,8 @@ static int bond_release_all(struct net_device *bond_dev)
addr.sa_family = slave_dev->type;
dev_set_mac_address(slave_dev, &addr);
- /* restore the original state of the IFF_NOARP flag that might have
- * been set by bond_set_slave_inactive_flags()
- */
- if ((slave->original_flags & IFF_NOARP) == 0) {
- slave_dev->flags &= ~IFF_NOARP;
- }
+ slave_dev->priv_flags &= ~(IFF_MASTER_8023AD | IFF_MASTER_ALB |
+ IFF_SLAVE_INACTIVE);
kfree(slave);
@@ -4061,14 +4059,17 @@ void bond_set_mode_ops(struct bonding *bond, int mode)
bond_dev->hard_start_xmit = bond_xmit_broadcast;
break;
case BOND_MODE_8023AD:
+ bond_set_master_3ad_flags(bond);
bond_dev->hard_start_xmit = bond_3ad_xmit_xor;
if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34)
bond->xmit_hash_policy = bond_xmit_hash_policy_l34;
else
bond->xmit_hash_policy = bond_xmit_hash_policy_l2;
break;
- case BOND_MODE_TLB:
case BOND_MODE_ALB:
+ bond_set_master_alb_flags(bond);
+ /* FALLTHRU */
+ case BOND_MODE_TLB:
bond_dev->hard_start_xmit = bond_alb_xmit;
bond_dev->set_mac_address = bond_alb_set_mac_address;
break;