diff options
Diffstat (limited to 'drivers/net/ethernet/via/via-velocity.c')
| -rw-r--r-- | drivers/net/ethernet/via/via-velocity.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c index 346e44115c4e..4b556b74541a 100644 --- a/drivers/net/ethernet/via/via-velocity.c +++ b/drivers/net/ethernet/via/via-velocity.c @@ -3257,12 +3257,16 @@ static struct platform_driver velocity_platform_driver = { * @dev: network device * * Called before an ethtool operation. We need to make sure the - * chip is out of D3 state before we poke at it. + * chip is out of D3 state before we poke at it. In case of ethtool + * ops nesting, only wake the device up in the outermost block. */ static int velocity_ethtool_up(struct net_device *dev) { struct velocity_info *vptr = netdev_priv(dev); - if (!netif_running(dev)) + + if (vptr->ethtool_ops_nesting == U32_MAX) + return -EBUSY; + if (!vptr->ethtool_ops_nesting++ && !netif_running(dev)) velocity_set_power_state(vptr, PCI_D0); return 0; } @@ -3272,12 +3276,14 @@ static int velocity_ethtool_up(struct net_device *dev) * @dev: network device * * Called after an ethtool operation. Restore the chip back to D3 - * state if it isn't running. + * state if it isn't running. In case of ethtool ops nesting, only + * put the device to sleep in the outermost block. */ static void velocity_ethtool_down(struct net_device *dev) { struct velocity_info *vptr = netdev_priv(dev); - if (!netif_running(dev)) + + if (!--vptr->ethtool_ops_nesting && !netif_running(dev)) velocity_set_power_state(vptr, PCI_D3hot); } |