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| author | Stephen Hemminger <shemminger@osdl.org> | 2005-12-09 11:35:07 -0800 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-12-12 15:27:21 -0500 |
| commit | 8cc048e338ad4034255f3ff72ef1f631963e1263 (patch) | |
| tree | 95cb0c92ff78511ad5980dd53118b70657fb870d /drivers/net/sky2.c | |
| parent | 69634ee7366d05b26b2650584bed180edf923125 (diff) | |
| download | lwn-8cc048e338ad4034255f3ff72ef1f631963e1263.tar.gz lwn-8cc048e338ad4034255f3ff72ef1f631963e1263.zip | |
[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/sky2.c')
| -rw-r--r-- | drivers/net/sky2.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 0b82dbba16cf..e1733aa17790 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); } |