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Commit eb35cf60 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Linus Torvalds
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[PATCH] sky2: stop/start hardware idle timer on suspend/resume 



The resume bug was caused not by an early interrupt but because the idle
timeout was not being stopped on suspend.  Also disable hardware IRQ's
on suspend.  Will need to revisit this with hotplug?

Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 8ab8fca2

drivers/net/sky2.c

+13 −4
Original line number Diff line number Diff line
@@ -2161,6 +2161,13 @@ static void sky2_descriptor_error(struct sky2_hw *hw, unsigned port, 
/* If idle then force a fake soft NAPI poll once a second

 * to work around cases where sharing an edge triggered interrupt.

 */

static inline void sky2_idle_start(struct sky2_hw *hw)

{

	if (idle_timeout > 0)

		mod_timer(&hw->idle_timer,

			  jiffies + msecs_to_jiffies(idle_timeout));

}



static void sky2_idle(unsigned long arg)

{

	struct sky2_hw *hw = (struct sky2_hw *) arg;
@@ -3350,9 +3357,7 @@ static int __devinit sky2_probe(struct pci_dev *pdev, 
	sky2_write32(hw, B0_IMSK, Y2_IS_BASE);



	setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) hw);

	if (idle_timeout > 0)

		mod_timer(&hw->idle_timer,

			  jiffies + msecs_to_jiffies(idle_timeout));

	sky2_idle_start(hw);



	pci_set_drvdata(pdev, hw);
@@ -3430,6 +3435,8 @@ static int sky2_suspend(struct pci_dev *pdev, pm_message_t state) 
	if (!(pstate == PCI_D3hot || pstate == PCI_D3cold))

		return -EINVAL;



	del_timer_sync(&hw->idle_timer);



	for (i = 0; i < hw->ports; i++) {

		struct net_device *dev = hw->dev[i];
@@ -3472,10 +3479,12 @@ static int sky2_resume(struct pci_dev *pdev) 
				printk(KERN_ERR PFX "%s: could not up: %d\n",

				       dev->name, err);

				dev_close(dev);

				break;

				goto out;

			}

		}

	}



	sky2_idle_start(hw);

out:

	return err;

}