diff options
| author |   Stephen Hemminger <shemminger@osdl.org> | 2006-03-20 15:48:22 -0800 |
|---|---|---|
| committer |   Jeff Garzik <jeff@garzik.org> | 2006-03-21 16:00:53 -0500 |
| commit | d257924e85a81561a956f1791fa5a226e3a32ce1 (patch) | |
| tree | 4632372160838e2a878f9f1edf0d34b0da06d49c /drivers/net/sky2.c | |
| parent | [PATCH] sky2: transmit recovery (diff) | |
| download | linux-dev-d257924e85a81561a956f1791fa5a226e3a32ce1.tar.xz linux-dev-d257924e85a81561a956f1791fa5a226e3a32ce1.zip | |
[PATCH] sky2: handle all error irqs
The hardware has additional error trap interrupt bits. I have never seen
them trigger, but if they do, it looks like this might be useful.
Signed-off-by: Stephen Hemminger <shemminger@osdl.rog>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/sky2.c')
| -rw-r--r-- | drivers/net/sky2.c | 55 |
1 files changed, 45 insertions, 10 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index ab36a7460a26..380bb59f3517 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -2066,6 +2066,27 @@ static void sky2_mac_intr(struct sky2_hw *hw, unsigned port) } } +/* This should never happen it is a fatal situation */ +static void sky2_descriptor_error(struct sky2_hw *hw, unsigned port, + const char *rxtx, u32 mask) +{ + struct net_device *dev = hw->dev[port]; + struct sky2_port *sky2 = netdev_priv(dev); + u32 imask; + + printk(KERN_ERR PFX "%s: %s descriptor error (hardware problem)\n", + dev ? dev->name : "<not registered>", rxtx); + + imask = sky2_read32(hw, B0_IMSK); + imask &= ~mask; + sky2_write32(hw, B0_IMSK, imask); + + if (dev) { + spin_lock(&sky2->phy_lock); + sky2_link_down(sky2); + spin_unlock(&sky2->phy_lock); + } +} static int sky2_poll(struct net_device *dev0, int *budget) { @@ -2074,20 +2095,34 @@ static int sky2_poll(struct net_device *dev0, int *budget) int work_done = 0; u32 status = sky2_read32(hw, B0_Y2_SP_EISR); - if (status & Y2_IS_HW_ERR) - sky2_hw_intr(hw); + if (unlikely(status & ~Y2_IS_STAT_BMU)) { + if (status & Y2_IS_HW_ERR) + sky2_hw_intr(hw); + + if (status & Y2_IS_IRQ_PHY1) + sky2_phy_intr(hw, 0); - if (status & Y2_IS_IRQ_PHY1) - sky2_phy_intr(hw, 0); + if (status & Y2_IS_IRQ_PHY2) + sky2_phy_intr(hw, 1); - if (status & Y2_IS_IRQ_PHY2) - sky2_phy_intr(hw, 1); + if (status & Y2_IS_IRQ_MAC1) + sky2_mac_intr(hw, 0); - if (status & Y2_IS_IRQ_MAC1) - sky2_mac_intr(hw, 0); + if (status & Y2_IS_IRQ_MAC2) + sky2_mac_intr(hw, 1); - if (status & Y2_IS_IRQ_MAC2) - sky2_mac_intr(hw, 1); + if (status & Y2_IS_CHK_RX1) + sky2_descriptor_error(hw, 0, "receive", Y2_IS_CHK_RX1); + + if (status & Y2_IS_CHK_RX2) + sky2_descriptor_error(hw, 1, "receive", Y2_IS_CHK_RX2); + + if (status & Y2_IS_CHK_TXA1) + sky2_descriptor_error(hw, 0, "transmit", Y2_IS_CHK_TXA1); + + if (status & Y2_IS_CHK_TXA2) + sky2_descriptor_error(hw, 1, "transmit", Y2_IS_CHK_TXA2); + } if (status & Y2_IS_STAT_BMU) { work_done = sky2_status_intr(hw, work_limit); |