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sky2: PCI irq issues

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Add some read's to avoid any PCI posting issues when controlling
irq's.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2009-06-17 07:30:34 +00:00 committed by David S. Miller
parent c0bad0f2e4
commit 1fd82f3caf
1 changed files with 2 additions and 0 deletions
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2
drivers/net/sky2.c
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@ -1495,6 +1495,7 @@ static int sky2_up(struct net_device *dev)
imask = sky2_read32(hw, B0_IMSK); imask = sky2_read32(hw, B0_IMSK);
imask |= portirq_msk[port]; imask |= portirq_msk[port];
sky2_write32(hw, B0_IMSK, imask); sky2_write32(hw, B0_IMSK, imask);
sky2_read32(hw, B0_IMSK);
sky2_set_multicast(dev); sky2_set_multicast(dev);
@ -1812,6 +1813,7 @@ static int sky2_down(struct net_device *dev)
imask = sky2_read32(hw, B0_IMSK); imask = sky2_read32(hw, B0_IMSK);
imask &= ~portirq_msk[port]; imask &= ~portirq_msk[port];
sky2_write32(hw, B0_IMSK, imask); sky2_write32(hw, B0_IMSK, imask);
sky2_read32(hw, B0_IMSK);
synchronize_irq(hw->pdev->irq); synchronize_irq(hw->pdev->irq);