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mlx4_en: reconfiguring mac address.

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When Mac address is removed from one port of the CX2 device, the other device
should reconfigure its Mac.
This fixes an issue with failover, when both ports have the same Mac address,
and one of the ports, is closed, the second one stops receiving traffic.
(bugzilla #1965 at bugs.openfabrics.org)

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yevgeny Petrilin 2010-08-24 03:46:38 +00:00 committed by David S. Miller
parent bc081cecf3
commit d7e1a487d3
2 changed files with 7 additions and 0 deletions
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6
drivers/net/mlx4/en_netdev.c
View File

@ -513,6 +513,10 @@ static void mlx4_en_do_get_stats(struct work_struct *work)
queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
}
if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) {
queue_work(mdev->workqueue, &priv->mac_task);
mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0;
}
mutex_unlock(&mdev->state_lock);
}
@ -653,6 +657,7 @@ int mlx4_en_start_port(struct net_device *dev)
en_err(priv, "Failed setting port mac\n");
goto tx_err;
}
mdev->mac_removed[priv->port] = 0;
/* Init port */
en_dbg(HW, priv, "Initializing port\n");
@ -709,6 +714,7 @@ void mlx4_en_stop_port(struct net_device *dev)
/* Unregister Mac address for the port */
mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index);
mdev->mac_removed[priv->port] = 1;
/* Free TX Rings */
for (i = 0; i < priv->tx_ring_num; i++) {

1
drivers/net/mlx4/mlx4_en.h
View File

@ -341,6 +341,7 @@ struct mlx4_en_dev {
struct mlx4_mr mr;
u32 priv_pdn;
spinlock_t uar_lock;
u8 mac_removed[MLX4_MAX_PORTS + 1];
};