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authorRafael J. Wysocki <rjw@sisk.pl>2009-04-15 19:44:01 +0200
committerDavid S. Miller <davem@davemloft.net>2009-04-16 11:15:25 +0200
commit9d8d05ae66f40642987486f4b107565fc561a77c (patch)
tree72999fe5e731e785d5be685e0f9d51bf42df048d /drivers/net/ixgbe/ixgbe_main.c
parentNET/e1000e: Fix powering off during shutdown (diff)
downloadlinux-9d8d05ae66f40642987486f4b107565fc561a77c.tar.xz
linux-9d8d05ae66f40642987486f4b107565fc561a77c.zip
NET/ixgbe: Fix powering off during shutdown
Prevent ixgbe from putting the adapter into D3 during shutdown except when we're going to power off the system, since doing that may generally cause problems with kexec to happen (such problems were observed for igb and forcedeth). For this purpose seperate ixgbe_shutdown() from ixgbe_suspend() and use the appropriate PCI PM callbacks in both of them. Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_main.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_main.c36
1 files changed, 32 insertions, 4 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 11fd153da85f..febde45cf9fa 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -3612,9 +3612,9 @@ static int ixgbe_resume(struct pci_dev *pdev)
return 0;
}
-
#endif /* CONFIG_PM */
-static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state)
+
+static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct ixgbe_adapter *adapter = netdev_priv(netdev);
@@ -3673,18 +3673,46 @@ static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state)
pci_enable_wake(pdev, PCI_D3cold, 0);
}
+ *enable_wake = !!wufc;
+
ixgbe_release_hw_control(adapter);
pci_disable_device(pdev);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ int retval;
+ bool wake;
+
+ retval = __ixgbe_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;
}
+#endif /* CONFIG_PM */
static void ixgbe_shutdown(struct pci_dev *pdev)
{
- ixgbe_suspend(pdev, PMSG_SUSPEND);
+ bool wake;
+
+ __ixgbe_shutdown(pdev, &wake);
+
+ if (system_state == SYSTEM_POWER_OFF) {
+ pci_wake_from_d3(pdev, wake);
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
}
/**