ifconfig mlx4_en port reported RUNNING even though the link was down.
mlx4_en_init_netdev didn't initialize the dev operstate properly so
the operstate stayed as default IF_OPER_UNKNOWN, then ifconfig treated
the UNKNOWN as RUNNING state for backward compatiblity per RFC2863.
The fix calls netif_carrier_off which is supposed to set operstate
after register_netdev. Calling it before register_netdev has no effect
since the dev->state is still NETREG_UNINITIALIZED
Tested by removing the physical link signal to the mellanox 10G port,
modprobe mlx4_en, then ifconfig up. Verify there is no RUNNING status.
Signed-off-by: Min Zhang <mzh...@mvista.com>
---
drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index c96113b..8c562f7a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1306,12 +1306,12 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int
port,
mdev->pndev[port] = dev;
- netif_carrier_off(dev);
err = register_netdev(dev);
if (err) {
mlx4_err(mdev, "Netdev registration failed for port %d\n",
port);
goto out;
}
+ netif_carrier_off(dev);
en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);
--
1.7.7.4
--
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