ipxe-hp-interrupt-fix-rfm6.patch

--- a/src/arch/i386/drivers/net/undinet.c   2013-01-09 14:25:49.824273512 +0000
+++ b/src/arch/i386/drivers/net/undinet.cc  2013-01-09 14:31:35.484271369 +0000
@@ -639,6 +639,16 @@
         ( undinic->irq != 0 ) ) {
        undinic->irq_supported = 1;
    }
+        /* Override to polling mode on broken HP laptops that incorrectly report interrupt mode
+               ven:8086 dev:1503 (6570b) & ven:8086 dev:1502 (6570b,2170b,xx70x) - Richard Moore
+               NB device ids in decimal
+        */
+        if ( ( undi->pci_vendor == 32902 ) &&
+             ( ( undi->pci_device == 5378 || undi->pci_device == 5378 ) ) ) {
+               undinic->irq_supported = 0;
+               DBGC ( undinic, "UNDINIC Forcing polling mode for match VEN:%d ", undi->pci_vendor );
+               DBGC ( undinic, "DEV:%d\n", undi->pci_device );
+        }
    DBGC ( undinic, "UNDINIC %p using %s mode\n", undinic,
           ( undinic->irq_supported ? "interrupt" : "polling" ) );
    if ( strncmp ( ( ( char * ) undi_iface.IfaceType ), "Etherboot",