SONIC interrupt handling
Install the built-in macsonic interrupt handler on both IRQs when using
via_alt_mapping. Otherwise the rare interrupt that still comes from the
nubus slot will wedge the nubus.
$ cat /proc/interrupts
auto 2: 89176 via2
auto 3: 744367 sonic
auto 4: 0 scc
auto 6: 318363 via1
auto 7: 0 NMI
mac 9: 119413 framebuffer vbl
mac 10: 1971 ADB
mac 14: 198517 timer
mac 17: 89104 nubus
mac 19: 72 Mac ESP SCSI
mac 56: 629 sonic
mac 62: 1142593 ide0
Version 1 of this patch had a bug where a nubus sonic card would register
two interrupt handlers. Only a built-in sonic needs both.
Versions 2 and 3 needed some cleanups, as Raylynn Knight and Christoph
Hellwig pointed out (thanks).
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/net/jazzsonic.c b/drivers/net/jazzsonic.c
index 1a73630..75f6f44 100644
--- a/drivers/net/jazzsonic.c
+++ b/drivers/net/jazzsonic.c
@@ -88,6 +88,23 @@
0xffff /* end of list */
};
+static int jazzsonic_open(struct net_device* dev)
+{
+ if (request_irq(dev->irq, &sonic_interrupt, IRQF_DISABLED, "sonic", dev)) {
+ printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
+ return -EAGAIN;
+ }
+ return sonic_open(dev);
+}
+
+static int jazzsonic_close(struct net_device* dev)
+{
+ int err;
+ err = sonic_close(dev);
+ free_irq(dev->irq, dev);
+ return err;
+}
+
static int __init sonic_probe1(struct net_device *dev)
{
static unsigned version_printed;
@@ -169,8 +186,8 @@
lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
- dev->open = sonic_open;
- dev->stop = sonic_close;
+ dev->open = jazzsonic_open;
+ dev->stop = jazzsonic_close;
dev->hard_start_xmit = sonic_send_packet;
dev->get_stats = sonic_get_stats;
dev->set_multicast_list = &sonic_multicast_list;
@@ -260,8 +277,6 @@
module_param(sonic_debug, int, 0);
MODULE_PARM_DESC(sonic_debug, "jazzsonic debug level (1-4)");
-#define SONIC_IRQ_FLAG IRQF_DISABLED
-
#include "sonic.c"
static int __devexit jazz_sonic_device_remove (struct platform_device *pdev)