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| author | Mike McCormack <mikem@ring3k.org> | 2009-07-21 20:57:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-07-21 20:57:56 -0700 |
| commit | a947a39d52f5b647a2fd5eca55d39e722a2fa90f (patch) | |
| tree | 5378a344f99d3206c63376cfd73fe336eb2049b9 | |
| parent | 86669530d966ca21f4245b9990e7ae188d433d1e (diff) | |
| download | op-kernel-dev-a947a39d52f5b647a2fd5eca55d39e722a2fa90f.zip op-kernel-dev-a947a39d52f5b647a2fd5eca55d39e722a2fa90f.tar.gz | |
sky2: Avoid races in sky2_down
Reset rx chain before trying to drain it.
Shut interrupts off last, incase there's something to report.
Signed-off-by: Mike McCormack <mikem@ring3k.org>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/sky2.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index ba768df..3550c5d 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -1818,12 +1818,6 @@ static int sky2_down(struct net_device *dev) if (netif_msg_ifdown(sky2)) printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); - /* Disable port IRQ */ - imask = sky2_read32(hw, B0_IMSK); - imask &= ~portirq_msk[port]; - sky2_write32(hw, B0_IMSK, imask); - sky2_read32(hw, B0_IMSK); - /* Force flow control off */ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); @@ -1863,8 +1857,6 @@ static int sky2_down(struct net_device *dev) sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); - sky2_rx_stop(sky2); - sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); @@ -1874,6 +1866,14 @@ static int sky2_down(struct net_device *dev) sky2_write32(hw, STAT_ISR_TIMER_CNT, 0); sky2_read8(hw, STAT_ISR_TIMER_CTRL); + sky2_rx_stop(sky2); + + /* Disable port IRQ */ + imask = sky2_read32(hw, B0_IMSK); + imask &= ~portirq_msk[port]; + sky2_write32(hw, B0_IMSK, imask); + sky2_read32(hw, B0_IMSK); + synchronize_irq(hw->pdev->irq); napi_synchronize(&hw->napi); |
