diff options
| author | Michael Brown <mcb30@etherboot.org> | 2007-12-15 19:32:32 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@etherboot.org> | 2007-12-15 19:32:32 +0000 |
| commit | 1d7974182e1e52a9296a0288c37f1002aaab8edb (patch) | |
| tree | 7a4e3dbc557f5b4534384681f468021e9f8137ab | |
| parent | 9747c1a486151db1d2867caf1f95f2ab1759ab5a (diff) | |
| download | ipxe-1d7974182e1e52a9296a0288c37f1002aaab8edb.tar.gz | |
Overwrite the device descriptor's IRQ number with whatever the legacy
driver's probe() routine fills in in nic->irqno. This is so that
non-interrupt-capable legacy drivers which set nic->irqno=0 will end
up reporting IRQ#0 via PXENV_UNDI_GET_INFORMATION; this in turn means
that the calling PXE NBP will (should) hook the timer interrupt, and
everything will sort of work.
| -rw-r--r-- | src/drivers/net/legacy.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/drivers/net/legacy.c b/src/drivers/net/legacy.c index 9b82f1ca..32460adb 100644 --- a/src/drivers/net/legacy.c +++ b/src/drivers/net/legacy.c @@ -98,12 +98,20 @@ int legacy_probe ( void *hwdev, netdev->dev = dev; nic.node_addr = netdev->ll_addr; + nic.irqno = dev->desc.irq; if ( ! probe ( &nic, hwdev ) ) { rc = -ENODEV; goto err_probe; } + /* Overwrite the IRQ number. Some legacy devices set + * nic->irqno to 0 in the probe routine to indicate that they + * don't support interrupts; doing this allows the timer + * interrupt to be used instead. + */ + dev->desc.irq = nic.irqno; + if ( ( rc = register_netdev ( netdev ) ) != 0 ) goto err_register; |