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path: root/drivers/net/e1000
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Diffstat (limited to 'drivers/net/e1000')
-rw-r--r--drivers/net/e1000/e1000_main.c46
1 files changed, 33 insertions, 13 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 4cd8b25c7ed..ef12931d302 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -156,8 +156,8 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid);
static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid);
static void e1000_restore_vlan(struct e1000_adapter *adapter);
-static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
#ifdef CONFIG_PM
+static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
static int e1000_resume(struct pci_dev *pdev);
#endif
static void e1000_shutdown(struct pci_dev *pdev);
@@ -4601,7 +4601,7 @@ int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
return 0;
}
-static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
+static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
@@ -4664,22 +4664,18 @@ static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
ew32(WUC, E1000_WUC_PME_EN);
ew32(WUFC, wufc);
- pci_enable_wake(pdev, PCI_D3hot, 1);
- pci_enable_wake(pdev, PCI_D3cold, 1);
} else {
ew32(WUC, 0);
ew32(WUFC, 0);
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
}
e1000_release_manageability(adapter);
+ *enable_wake = !!wufc;
+
/* make sure adapter isn't asleep if manageability is enabled */
- if (adapter->en_mng_pt) {
- pci_enable_wake(pdev, PCI_D3hot, 1);
- pci_enable_wake(pdev, PCI_D3cold, 1);
- }
+ if (adapter->en_mng_pt)
+ *enable_wake = true;
if (hw->phy_type == e1000_phy_igp_3)
e1000_phy_powerdown_workaround(hw);
@@ -4693,12 +4689,29 @@ static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
pci_disable_device(pdev);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
-
return 0;
}
#ifdef CONFIG_PM
+static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ int retval;
+ bool wake;
+
+ retval = __e1000_shutdown(pdev, &wake);
+ if (retval)
+ return retval;
+
+ if (wake) {
+ pci_prepare_to_sleep(pdev);
+ } else {
+ pci_wake_from_d3(pdev, false);
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
+
+ return 0;
+}
+
static int e1000_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
@@ -4753,7 +4766,14 @@ static int e1000_resume(struct pci_dev *pdev)
static void e1000_shutdown(struct pci_dev *pdev)
{
- e1000_suspend(pdev, PMSG_SUSPEND);
+ bool wake;
+
+ __e1000_shutdown(pdev, &wake);
+
+ if (system_state == SYSTEM_POWER_OFF) {
+ pci_wake_from_d3(pdev, wake);
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
}
#ifdef CONFIG_NET_POLL_CONTROLLER