diff options
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 64bfec32e2a6..6ae45931d1b2 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1238,6 +1238,20 @@ static int bond_compute_features(struct bonding *bond) return 0; } + +static void bond_setup_by_slave(struct net_device *bond_dev, + struct net_device *slave_dev) +{ + bond_dev->neigh_setup = slave_dev->neigh_setup; + + bond_dev->type = slave_dev->type; + bond_dev->hard_header_len = slave_dev->hard_header_len; + bond_dev->addr_len = slave_dev->addr_len; + + memcpy(bond_dev->broadcast, slave_dev->broadcast, + slave_dev->addr_len); +} + /* enslave device <slave> to bond device <master> */ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) { @@ -1312,6 +1326,25 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) goto err_undo_flags; } + /* set bonding device ether type by slave - bonding netdevices are + * created with ether_setup, so when the slave type is not ARPHRD_ETHER + * there is a need to override some of the type dependent attribs/funcs. + * + * bond ether type mutual exclusion - don't allow slaves of dissimilar + * ether type (eg ARPHRD_ETHER and ARPHRD_INFINIBAND) share the same bond + */ + if (bond->slave_cnt == 0) { + if (slave_dev->type != ARPHRD_ETHER) + bond_setup_by_slave(bond_dev, slave_dev); + } else if (bond_dev->type != slave_dev->type) { + printk(KERN_ERR DRV_NAME ": %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_dev->set_mac_address == NULL) { printk(KERN_ERR DRV_NAME ": %s: Error: The slave device you specified does " |