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authorStephen Hemminger <shemminger@osdl.org>2006-08-28 16:19:36 -0700
committerJeff Garzik <jeff@garzik.org>2006-08-29 17:18:30 -0400
commit78bc218663e3bd6cbbaf6a363d2f88f17541adfb (patch)
treeacbbd0e96fafb3a6332bbe9b31c483bb922fb886 /drivers/net/skge.c
parentd38efdd65aaabd82374f386d0cc54de2ffc90af3 (diff)
[PATCH] skge: pci bus post fixes
At the end of a critical section, we need to force the PCI write to complete by doing a read. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/skge.c')
-rw-r--r--drivers/net/skge.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index b8ebd9c7d40..85296ba5eac 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2747,7 +2747,7 @@ static int skge_poll(struct net_device *dev, int *budget)
spin_lock_irq(&hw->hw_lock);
hw->intr_mask |= rxirqmask[skge->port];
skge_write32(hw, B0_IMSK, hw->intr_mask);
- mmiowb();
+ skge_read32(hw, B0_IMSK);
spin_unlock_irq(&hw->hw_lock);
return 0;
@@ -2881,6 +2881,7 @@ static void skge_extirq(void *arg)
spin_lock_irq(&hw->hw_lock);
hw->intr_mask |= IS_EXT_REG;
skge_write32(hw, B0_IMSK, hw->intr_mask);
+ skge_read32(hw, B0_IMSK);
spin_unlock_irq(&hw->hw_lock);
}
@@ -2955,6 +2956,7 @@ static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs)
skge_error_irq(hw);
skge_write32(hw, B0_IMSK, hw->intr_mask);
+ skge_read32(hw, B0_IMSK);
spin_unlock(&hw->hw_lock);
return IRQ_HANDLED;
@@ -3424,6 +3426,7 @@ static void __devexit skge_remove(struct pci_dev *pdev)
spin_lock_irq(&hw->hw_lock);
hw->intr_mask = 0;
skge_write32(hw, B0_IMSK, 0);
+ skge_read32(hw, B0_IMSK);
spin_unlock_irq(&hw->hw_lock);
skge_write16(hw, B0_LED, LED_STAT_OFF);