bonding: Implement ndo_get_xmit_slave

Add implementation of ndo_get_xmit_slave. Find the slave by using the
helper function according to the bond mode. If the caller set all_slaves
to true, then it assumes that all slaves are available to transmit.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Maor Gottlieb 2020-04-30 22:21:39 +03:00 committed by Saeed Mahameed
parent 6b447e76ed
commit 33720aaf8c

View File

@ -4347,6 +4347,48 @@ static u16 bond_select_queue(struct net_device *dev, struct sk_buff *skb,
return txq;
}
static struct net_device *bond_xmit_get_slave(struct net_device *master_dev,
struct sk_buff *skb,
bool all_slaves)
{
struct bonding *bond = netdev_priv(master_dev);
struct bond_up_slave *slaves;
struct slave *slave = NULL;
switch (BOND_MODE(bond)) {
case BOND_MODE_ROUNDROBIN:
slave = bond_xmit_roundrobin_slave_get(bond, skb);
break;
case BOND_MODE_ACTIVEBACKUP:
slave = bond_xmit_activebackup_slave_get(bond, skb);
break;
case BOND_MODE_8023AD:
case BOND_MODE_XOR:
if (all_slaves)
slaves = rcu_dereference(bond->all_slaves);
else
slaves = rcu_dereference(bond->usable_slaves);
slave = bond_xmit_3ad_xor_slave_get(bond, skb, slaves);
break;
case BOND_MODE_BROADCAST:
break;
case BOND_MODE_ALB:
slave = bond_xmit_alb_slave_get(bond, skb);
break;
case BOND_MODE_TLB:
slave = bond_xmit_tlb_slave_get(bond, skb);
break;
default:
/* Should never happen, mode already checked */
WARN_ONCE(true, "Unknown bonding mode");
break;
}
if (slave)
return slave->dev;
return NULL;
}
static netdev_tx_t __bond_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct bonding *bond = netdev_priv(dev);
@ -4468,6 +4510,7 @@ static const struct net_device_ops bond_netdev_ops = {
.ndo_del_slave = bond_release,
.ndo_fix_features = bond_fix_features,
.ndo_features_check = passthru_features_check,
.ndo_get_xmit_slave = bond_xmit_get_slave,
};
static const struct device_type bond_type = {