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linux-sg2042
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net/mlx4_en: current_mac isn't updated in port up 

When port is down dev_addr is changed (e.g. by bonding) but current_mac
is not touched. When port is up again, hash_mac is updated to dev_addr,
but current_mac isn't. This leads to inconsistency between current_mac
and mac_hash. Because of that, mlx4_en_replace_mac() fails to find
current_mac in mac_hash.

Fix is to reset current_mac to dev_addr when port is up - as we do for
mac_hash.

Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eyal Perry 2014-07-22 15:44:09 +03:00 committed by David S. Miller
parent 7861f12bfd
commit b94901f3ed
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
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@ -644,6 +644,7 @@ static int mlx4_en_get_qp(struct mlx4_en_priv *priv)
goto alloc_err;
}
memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac));
memcpy(priv->current_mac, entry->mac, sizeof(priv->current_mac));
entry->reg_id = reg_id;
hlist_add_head_rcu(&entry->hlist,