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authorStephen Hemminger <shemminger@osdl.org>2005-12-09 11:35:07 -0800
committerJeff Garzik <jgarzik@pobox.com>2005-12-12 15:27:21 -0500
commit8cc048e338ad4034255f3ff72ef1f631963e1263 (patch)
tree95cb0c92ff78511ad5980dd53118b70657fb870d /drivers/net
parent69634ee7366d05b26b2650584bed180edf923125 (diff)
downloadop-kernel-dev-8cc048e338ad4034255f3ff72ef1f631963e1263.zip
op-kernel-dev-8cc048e338ad4034255f3ff72ef1f631963e1263.tar.gz
[PATCH] sky2: handle tx timeout
Put more logic in to try and handle transmit timeout recovery. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/sky2.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 0b82dbb..e1733aa 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -661,7 +661,7 @@ static void sky2_qset(struct sky2_hw *hw, u16 q)
/* Setup prefetch unit registers. This is the interface between
* hardware and driver list elements
*/
-static inline void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
+static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
u64 addr, u32 last)
{
sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
@@ -1558,14 +1558,25 @@ out:
static void sky2_tx_timeout(struct net_device *dev)
{
struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned txq = txqaddr[sky2->port];
if (netif_msg_timer(sky2))
printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);
- sky2_write32(sky2->hw, Q_ADDR(txqaddr[sky2->port], Q_CSR), BMU_STOP);
- sky2_read32(sky2->hw, Q_ADDR(txqaddr[sky2->port], Q_CSR));
+ netif_stop_queue(dev);
+
+ sky2_write32(hw, Q_ADDR(txq, Q_CSR), BMU_STOP);
+ sky2_read32(hw, Q_ADDR(txq, Q_CSR));
+
+ sky2_write32(hw, Y2_QADDR(txq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
sky2_tx_clean(sky2);
+
+ sky2_qset(hw, txq);
+ sky2_prefetch_init(hw, txq, sky2->tx_le_map, TX_RING_SIZE - 1);
+
+ netif_wake_queue(dev);
}
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