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authorMaor Gottlieb <maorg@mellanox.com>2020-04-30 21:21:39 +0200
committerSaeed Mahameed <saeedm@mellanox.com>2020-05-01 21:15:38 +0200
commit33720aaf8c2af5c0ff341a16b5048b9c7ecae569 (patch)
tree280ed7cef2a96d6ea7bc1aca0f90ca2bff894a2f /drivers/net/bonding/bond_main.c
parentbonding: Add array of all slaves (diff)
downloadlinux-33720aaf8c2af5c0ff341a16b5048b9c7ecae569.tar.xz
linux-33720aaf8c2af5c0ff341a16b5048b9c7ecae569.zip
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>
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
-rw-r--r--drivers/net/bonding/bond_main.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 2de693f0262e..39b1ad7edbb4 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -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 = {