diff options
| author | Stephen Hemminger <shemminger@osdl.org> | 2006-03-20 23:48:22 (GMT) |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-03-21 21:00:53 (GMT) |
| commit | d257924e85a81561a956f1791fa5a226e3a32ce1 (patch) | |
| tree | 4632372160838e2a878f9f1edf0d34b0da06d49c | |
| parent | 8f24664da64f8db094cd9d379b16fc1d8776d1df (diff) | |
| download | linux-d257924e85a81561a956f1791fa5a226e3a32ce1.tar.xz | |
[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>
| -rw-r--r-- | drivers/net/sky2.c | 55 | ||||
| -rw-r--r-- | drivers/net/sky2.h | 6 |
2 files changed, 49 insertions, 12 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index ab36a74..380bb59 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); diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h index 50e9f7d..d63cd5a 100644 --- a/drivers/net/sky2.h +++ b/drivers/net/sky2.h @@ -279,8 +279,10 @@ enum { Y2_IS_CHK_TXA1 = 1<<0, /* Descriptor error TXA 1 */ Y2_IS_BASE = Y2_IS_HW_ERR | Y2_IS_STAT_BMU, - Y2_IS_PORT_1 = Y2_IS_IRQ_PHY1 | Y2_IS_IRQ_MAC1, - Y2_IS_PORT_2 = Y2_IS_IRQ_PHY2 | Y2_IS_IRQ_MAC2, + Y2_IS_PORT_1 = Y2_IS_IRQ_PHY1 | Y2_IS_IRQ_MAC1 + | Y2_IS_CHK_TXA1 | Y2_IS_CHK_RX1, + Y2_IS_PORT_2 = Y2_IS_IRQ_PHY2 | Y2_IS_IRQ_MAC2 + | Y2_IS_CHK_TXA2 | Y2_IS_CHK_RX2, }; /* B2_IRQM_HWE_MSK 32 bit IRQ Moderation HW Error Mask */ |