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[intel] Report any unexpected interrupt causes 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/36/head
Michael Brown 2015-04-21 15:20:13 +01:00
parent da990b8870
commit 63dcab002e
2 changed files with 10 additions and 0 deletions
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8
src/drivers/net/intel.c
View File

@ -759,6 +759,14 @@ static void intel_poll ( struct net_device *netdev ) {
if ( icr & INTEL_IRQ_LSC )
intel_check_link ( netdev );
/* Check for unexpected interrupts */
if ( icr & ~( INTEL_IRQ_TXDW | INTEL_IRQ_TXQE | INTEL_IRQ_LSC |
INTEL_IRQ_RXDMT0 | INTEL_IRQ_RXT0 | INTEL_IRQ_RXO ) ) {
DBGC ( intel, "INTEL %p unexpected ICR %08x\n", intel, icr );
/* Report as a TX error */
netdev_tx_err ( netdev, NULL, -ENOTSUP );
}
/* Refill RX ring */
intel_refill_rx ( intel );
}

2
src/drivers/net/intel.h
View File

@ -91,7 +91,9 @@ enum intel_descriptor_status {
/** Interrupt Cause Read Register */
#define INTEL_ICR 0x000c0UL
#define INTEL_IRQ_TXDW 0x00000001UL /**< Transmit descriptor done */
#define INTEL_IRQ_TXQE 0x00000002UL /**< Transmit queue empty */
#define INTEL_IRQ_LSC 0x00000004UL /**< Link status change */
#define INTEL_IRQ_RXDMT0 0x00000010UL /**< Receive queue low */
#define INTEL_IRQ_RXT0 0x00000080UL /**< Receive timer */
#define INTEL_IRQ_RXO 0x00000400UL /**< Receive overrun */