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igb: Report link status in ethtool when interface is down

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With this change ethtool will correctly report link status when
the interface is down. Currently ethtool reports the link as not
detected when the interface is down.

Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nick Nunley 2010-02-17 01:01:21 +00:00 committed by David S. Miller
parent 22939f0606
commit 3145535ac6
3 changed files with 21 additions and 2 deletions
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1
drivers/net/igb/igb.h
View File

@ -356,6 +356,7 @@ extern void igb_unmap_and_free_tx_resource(struct igb_ring *,
struct igb_buffer *);
extern void igb_alloc_rx_buffers_adv(struct igb_ring *, int);
extern void igb_update_stats(struct igb_adapter *);
extern bool igb_has_link(struct igb_adapter *adapter);
extern void igb_set_ethtool_ops(struct net_device *);
static inline s32 igb_reset_phy(struct e1000_hw *hw)

20
drivers/net/igb/igb_ethtool.c
View File

@ -234,6 +234,24 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
return 0;
}
static u32 igb_get_link(struct net_device *netdev)
{
struct igb_adapter *adapter = netdev_priv(netdev);
struct e1000_mac_info *mac = &adapter->hw.mac;
/*
* If the link is not reported up to netdev, interrupts are disabled,
* and so the physical link state may have changed since we last
* looked. Set get_link_status to make sure that the true link
* state is interrogated, rather than pulling a cached and possibly
* stale link state from the driver.
*/
if (!netif_carrier_ok(netdev))
mac->get_link_status = 1;
return igb_has_link(adapter);
}
static void igb_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
@ -2077,7 +2095,7 @@ static const struct ethtool_ops igb_ethtool_ops = {
.get_msglevel = igb_get_msglevel,
.set_msglevel = igb_set_msglevel,
.nway_reset = igb_nway_reset,
.get_link = ethtool_op_get_link,
.get_link = igb_get_link,
.get_eeprom_len = igb_get_eeprom_len,
.get_eeprom = igb_get_eeprom,
.set_eeprom = igb_set_eeprom,

2
drivers/net/igb/igb_main.c
View File

@ -3020,7 +3020,7 @@ static void igb_update_phy_info(unsigned long data)
* igb_has_link - check shared code for link and determine up/down
* @adapter: pointer to driver private info
**/
static bool igb_has_link(struct igb_adapter *adapter)
bool igb_has_link(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
bool link_active = false;