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path: root/drivers/net/igb/igb_main.c
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Diffstat (limited to 'drivers/net/igb/igb_main.c')
-rw-r--r--drivers/net/igb/igb_main.c44
1 files changed, 31 insertions, 13 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 10b095d69b4..03aa9593dd9 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -135,8 +135,8 @@ static inline int igb_set_vf_rlpml(struct igb_adapter *, int, int);
static int igb_set_vf_mac(struct igb_adapter *adapter, int, unsigned char *);
static void igb_restore_vf_multicasts(struct igb_adapter *adapter);
-static int igb_suspend(struct pci_dev *, pm_message_t);
#ifdef CONFIG_PM
+static int igb_suspend(struct pci_dev *, pm_message_t);
static int igb_resume(struct pci_dev *);
#endif
static void igb_shutdown(struct pci_dev *);
@@ -5060,7 +5060,7 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx)
return 0;
}
-static int igb_suspend(struct pci_dev *pdev, pm_message_t state)
+static int __igb_shutdown(struct pci_dev *pdev, bool *enable_wake)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct igb_adapter *adapter = netdev_priv(netdev);
@@ -5119,15 +5119,9 @@ static int igb_suspend(struct pci_dev *pdev, pm_message_t state)
wr32(E1000_WUFC, 0);
}
- /* make sure adapter isn't asleep if manageability/wol is enabled */
- if (wufc || adapter->en_mng_pt) {
- pci_enable_wake(pdev, PCI_D3hot, 1);
- pci_enable_wake(pdev, PCI_D3cold, 1);
- } else {
+ *enable_wake = wufc || adapter->en_mng_pt;
+ if (!*enable_wake)
igb_shutdown_fiber_serdes_link_82575(hw);
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
- }
/* Release control of h/w to f/w. If f/w is AMT enabled, this
* would have already happened in close and is redundant. */
@@ -5135,12 +5129,29 @@ static int igb_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 igb_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ int retval;
+ bool wake;
+
+ retval = __igb_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 igb_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
@@ -5193,7 +5204,14 @@ static int igb_resume(struct pci_dev *pdev)
static void igb_shutdown(struct pci_dev *pdev)
{
- igb_suspend(pdev, PMSG_SUSPEND);
+ bool wake;
+
+ __igb_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