diff options
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_main.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index e29aadbc6744..5e9c86ea3a5a 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -149,6 +149,9 @@ static void igc_release_hw_control(struct igc_adapter *adapter) struct igc_hw *hw = &adapter->hw; u32 ctrl_ext; + if (!pci_device_is_present(adapter->pdev)) + return; + /* Let firmware take over control of h/w */ ctrl_ext = rd32(IGC_CTRL_EXT); wr32(IGC_CTRL_EXT, @@ -4449,26 +4452,29 @@ void igc_down(struct igc_adapter *adapter) igc_ptp_suspend(adapter); - /* disable receives in the hardware */ - rctl = rd32(IGC_RCTL); - wr32(IGC_RCTL, rctl & ~IGC_RCTL_EN); - /* flush and sleep below */ - + if (pci_device_is_present(adapter->pdev)) { + /* disable receives in the hardware */ + rctl = rd32(IGC_RCTL); + wr32(IGC_RCTL, rctl & ~IGC_RCTL_EN); + /* flush and sleep below */ + } /* set trans_start so we don't get spurious watchdogs during reset */ netif_trans_update(netdev); netif_carrier_off(netdev); netif_tx_stop_all_queues(netdev); - /* disable transmits in the hardware */ - tctl = rd32(IGC_TCTL); - tctl &= ~IGC_TCTL_EN; - wr32(IGC_TCTL, tctl); - /* flush both disables and wait for them to finish */ - wrfl(); - usleep_range(10000, 20000); + if (pci_device_is_present(adapter->pdev)) { + /* disable transmits in the hardware */ + tctl = rd32(IGC_TCTL); + tctl &= ~IGC_TCTL_EN; + wr32(IGC_TCTL, tctl); + /* flush both disables and wait for them to finish */ + wrfl(); + usleep_range(10000, 20000); - igc_irq_disable(adapter); + igc_irq_disable(adapter); + } adapter->flags &= ~IGC_FLAG_NEED_LINK_UPDATE; |