Jon Forsberg <zzed@cyberdude.com> écrit :
> I have an Surecom EP-320X-S Ethernet adapter which apparently uses a
> Myson MTD-8xx chip. It works well with the "fealnx" driver (labeled
> "Myson MTD-8xx PCI Ethernet support" in kernel config) except for one thing:
> After a while in use it stops working and prints
>
> Jun 21 12:18:18 naut kernel: NETDEV WATCHDOG: eth0: transmit timed out
[...]
Could you give this a try please ?
It may crash.
--- linux-2.4.5.orig/drivers/net/fealnx.c Wed Jun 6 09:13:43 2001
+++ linux-2.4.5/drivers/net/fealnx.c Thu Jun 21 21:18:59 2001
@@ -418,7 +418,7 @@
static struct net_device_stats *get_stats(struct net_device *dev);
static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static int netdev_close(struct net_device *dev);
-
+static void reset_rx_descriptors(struct net_device *dev);
void stop_nic_tx(long ioaddr, long crvalue)
{
@@ -1121,14 +1121,13 @@
{
struct netdev_private *np = dev->priv;
long ioaddr = dev->base_addr;
+ int i;
printk(KERN_WARNING "%s: Transmit timed out, status %8.8x,"
" resetting...\n", dev->name, readl(ioaddr + ISR));
#ifndef __alpha__
{
- int i;
-
printk(KERN_DEBUG " Rx ring %8.8x: ", (int) np->rx_ring);
for (i = 0; i < RX_RING_SIZE; i++)
printk(" %8.8x", (unsigned int) np->rx_ring[i].status);
@@ -1139,12 +1138,36 @@
}
#endif
- /* Perhaps we should reinitialize the hardware here. Just trigger a
- Tx demand for now. */
+ dev->if_port = np->default_port;
+ /* Reinit. Gross */
+
+ /* Reset the chip's Tx and Rx processes. */
+ stop_nic_tx(ioaddr, 0);
+ reset_rx_descriptors(dev);
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ writel(0x0000, ioaddr + IMR);
+
+ /* Reset the chip to erase previous misconfiguration. */
+ writel(0x00000001, ioaddr + BCR);
+ for (i = 0; i < 50; i++) {
+ readl(ioaddr + BCR);
+ rmb();
+ }
+
+ writel(virt_to_bus(np->cur_tx), ioaddr + TXLBA);
+ writel(virt_to_bus(np->cur_rx), ioaddr + RXLBA);
+
+ writel(np->bcrvalue, ioaddr + BCR);
+
+ writel(0, dev->base_addr + RXPDR);
+ set_rx_mode(dev);
+ /* Clear and Enable interrupts by setting the interrupt mask. */
+ writel(FBE | TUNF | CNTOVF | RBU | TI | RI, ioaddr + ISR);
+ writel(np->imrvalue, ioaddr + IMR);
+
writel(0, dev->base_addr + TXPDR);
- dev->if_port = 0;
- /* Stop and restart the chip's Tx processes . */
dev->trans_start = jiffies;
np->stats.tx_errors++;
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This archive was generated by hypermail 2b29 : Sat Jun 23 2001 - 21:00:34 EST