diff options
| -rw-r--r-- | src/arch/i386/drivers/net/undinet.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/arch/i386/drivers/net/undinet.c b/src/arch/i386/drivers/net/undinet.c index 2e7c13af1..a98d09d64 100644 --- a/src/arch/i386/drivers/net/undinet.c +++ b/src/arch/i386/drivers/net/undinet.c @@ -390,19 +390,27 @@ static void undinet_poll ( struct net_device *netdev, unsigned int rx_quota ) { /* Do nothing unless ISR has been triggered */ if ( ! undinet_isr_triggered() ) return; - + /* See if this was our interrupt */ memset ( &undi_isr, 0, sizeof ( undi_isr ) ); undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_START; if ( ( rc = undinet_call ( undinic, PXENV_UNDI_ISR, &undi_isr, sizeof ( undi_isr ) ) ) != 0 ) return; + + /* Send EOI to the PIC. In an ideal world, we'd do + * this only for interrupts which the UNDI stack + * reports as "ours". However, since we don't (can't) + * chain to the previous interrupt handler, we have to + * acknowledge all interrupts. See undinet_hook_isr() + * for more background. + */ + send_eoi ( undinic->irq ); + + /* If this wasn't our interrupt, exit now */ if ( undi_isr.FuncFlag != PXENV_UNDI_ISR_OUT_OURS ) return; - /* Send EOI */ - send_eoi ( undinic->irq ); - /* Start ISR processing */ undinic->isr_processing = 1; undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_PROCESS; |