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| author | Or Gerlitz <ogerlitz@mellanox.com> | 2013-08-01 19:55:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-11 18:35:26 -0700 |
| commit | f870f0c92b820e063dbb6ba9bee0ee80e3dc8fd0 (patch) | |
| tree | 383aa4c9e844c7cbfb75c31b58f28d2a4000a601 | |
| parent | 1eec0e843a893cf2893659ac99f8bd8ab6265ba4 (diff) | |
| download | linux-3.10-f870f0c92b820e063dbb6ba9bee0ee80e3dc8fd0.tar.gz linux-3.10-f870f0c92b820e063dbb6ba9bee0ee80e3dc8fd0.tar.bz2 linux-3.10-f870f0c92b820e063dbb6ba9bee0ee80e3dc8fd0.zip | |
net/mlx4_core: Don't give VFs MAC addresses which are derived from the PF MAC
[ Upstream commit 0508ad646836007e6e6b62331eee7356844eac3d ]
If the user has not assigned a MAC address to a VM, then don't give it MAC which
is based on the PF one. The current derivation scheme is wrong and leads to VM
MAC collisions when the number of cards/hypervisors becomes big enough.
Instead, just give it zeros and let them figure out what to do with that.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/fw.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index 2c97901c6a6..593177d4771 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -840,16 +840,7 @@ int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave, MLX4_CMD_NATIVE); if (!err && dev->caps.function != slave) { - /* if config MAC in DB use it */ - if (priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac) - def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac; - else { - /* set slave default_mac address */ - MLX4_GET(def_mac, outbox->buf, QUERY_PORT_MAC_OFFSET); - def_mac += slave << 8; - priv->mfunc.master.vf_admin[slave].vport[vhcr->in_modifier].mac = def_mac; - } - + def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac; MLX4_PUT(outbox->buf, def_mac, QUERY_PORT_MAC_OFFSET); /* get port type - currently only eth is enabled */ |