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[PATCH] e1000: Fix regression: garbled stats and irq allocation during swsusp

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e1000: Fix suspend/resume powerup and irq allocation

From: Auke Kok <auke-jan.h.kok@intel.com>

After 7.0.33/2.6.16, e1000 suspend/resume left the user with an enabled
device showing garbled statistics and undetermined irq allocation state,
where `ifconfig eth0 down` would display `trying to free already freed irq`.

Explicitly free and allocate irq as well as powerup the PHY during resume
fixes when needed.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Auke Kok 2006-11-06 08:57:12 -08:00 committed by Jeff Garzik
parent e78181feb0
commit edd106fc8a
1 changed files with 7 additions and 0 deletions
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7
drivers/net/e1000/e1000_main.c
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@ -4800,6 +4800,9 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
if (adapter->hw.phy_type == e1000_phy_igp_3)
e1000_phy_powerdown_workaround(&adapter->hw);
if (netif_running(netdev))
e1000_free_irq(adapter);
/* Release control of h/w to f/w. If f/w is AMT enabled, this
* would have already happened in close and is redundant. */
e1000_release_hw_control(adapter);
@ -4830,6 +4833,10 @@ e1000_resume(struct pci_dev *pdev)
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
if (netif_running(netdev) && (err = e1000_request_irq(adapter)))
return err;
e1000_power_up_phy(adapter);
e1000_reset(adapter);
E1000_WRITE_REG(&adapter->hw, WUS, ~0);