That's the last time I hand-edit a patch - this is really more of a workaround
since I've learned that the interrupts should have been disabled by the
firmware anyway. But, it doesn't hurt. Updated description
This patch disable interrupts on all ports during initialization. The
current driver assumes that the firmware has already disabled all interrupts
on all ports. We have encountered some boards that do not always disable
interrupts (XES XPedite 6200 for instance) on a soft reset on all ethernet
ports. This patch prevents a kernel panic if a packet is received before the
DMA ring buffers are setup for a port on which interrupts are left enabled by
the firmware.
Signed-off-by: Brent Cook <[EMAIL PROTECTED]>
Index: current/drivers/net/mv643xx_eth.c
===================================================================
--- current/drivers/net/mv643xx_eth.c (revision 101)
+++ current/drivers/net/mv643xx_eth.c (working copy)
@@ -777,6 +777,12 @@
unsigned int size;
int err;
+ /* Mask all interrupts on ethernet port */
+ mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num),
+ ETH_INT_MASK_ALL);
+ /* wait for previous write to complete */
+ mv_read(MV643XX_ETH_INTERRUPT_MASK_REG(port_num));
+
err = request_irq(dev->irq, mv643xx_eth_int_handler,
SA_SHIRQ | SA_SAMPLE_RANDOM, dev->name, dev);
if (err) {
-
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