Commit 33720aaf authored by Maor Gottlieb's avatar Maor Gottlieb Committed by Saeed Mahameed
Browse files

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: default avatarMaor Gottlieb <maorg@mellanox.com>
Reviewed-by: default avatarJay Vosburgh <jay.vosburgh@canonical.com>
Reviewed-by: default avatarJiri Pirko <jiri@mellanox.com>
Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 6b447e76

drivers/net/bonding/bond_main.c

+43 −0
Original line number Diff line number Diff line
@@ -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 = {

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