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IB/mlx4: Build the port IBoE GID table properly under bonding 

When scanning netdevices we need to check a few more conditions and
cases to build the IBoE GID table properly.  For example, under
bonding we must make sure that when a port is down, the bond IP
address isn't programmed as a GID, since doing so will cause failure
with IB core flows that selects ports by GID.

Signed-off-by: Moni Shoua <monis@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
hifive-unleashed-5.1
Moni Shoua 2014-02-05 15:13:02 +02:00 committed by Roland Dreier
parent 5071456fe2
commit ad4885d279
1 changed files with 37 additions and 4 deletions
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41
drivers/infiniband/hw/mlx4/main.c
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@ -1507,7 +1507,6 @@ static int reset_gid_table(struct mlx4_ib_dev *dev, u8 port)
{
struct update_gid_work *work;
work = kzalloc(sizeof(*work), GFP_ATOMIC);
if (!work)
return -ENOMEM;
@ -1699,25 +1698,57 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev)
spin_lock(&iboe->lock);
mlx4_foreach_ib_transport_port(port, ibdev->dev) {
enum ib_port_state port_state = IB_PORT_NOP;
struct net_device *old_master = iboe->masters[port - 1];
struct net_device *curr_netdev;
struct net_device *curr_master;
iboe->netdevs[port - 1] =
mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
if (iboe->netdevs[port - 1])
mlx4_ib_set_default_gid(ibdev,
iboe->netdevs[port - 1], port);
curr_netdev = iboe->netdevs[port - 1];
if (iboe->netdevs[port - 1] &&
netif_is_bond_slave(iboe->netdevs[port - 1])) {
iboe->masters[port - 1] = netdev_master_upper_dev_get(
iboe->netdevs[port - 1]);
} else {
iboe->masters[port - 1] = NULL;
}
curr_master = iboe->masters[port - 1];
if (curr_netdev) {
port_state = (netif_running(curr_netdev) && netif_carrier_ok(curr_netdev)) ?
IB_PORT_ACTIVE : IB_PORT_DOWN;
mlx4_ib_set_default_gid(ibdev, curr_netdev, port);
} else {
reset_gid_table(ibdev, port);
}
/* if using bonding/team and a slave port is down, we don't the bond IP
* based gids in the table since flows that select port by gid may get
* the down port.
*/
if (curr_master && (port_state == IB_PORT_DOWN)) {
reset_gid_table(ibdev, port);
mlx4_ib_set_default_gid(ibdev, curr_netdev, port);
}
/* if bonding is used it is possible that we add it to masters
only after IP address is assigned to the net bonding
interface */
if (curr_master && (old_master != curr_master))
* only after IP address is assigned to the net bonding
* interface.
*/
if (curr_master && (old_master != curr_master)) {
reset_gid_table(ibdev, port);
mlx4_ib_set_default_gid(ibdev, curr_netdev, port);
mlx4_ib_get_dev_addr(curr_master, ibdev, port);
}
if (!curr_master && (old_master != curr_master)) {
reset_gid_table(ibdev, port);
mlx4_ib_set_default_gid(ibdev, curr_netdev, port);
mlx4_ib_get_dev_addr(curr_netdev, ibdev, port);
}
}
spin_unlock(&iboe->lock);
@ -2099,6 +2130,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
}
}
#endif
for (i = 1 ; i <= ibdev->num_ports ; ++i)
reset_gid_table(ibdev, i);
rtnl_lock();
mlx4_ib_scan_netdevs(ibdev);
rtnl_unlock();