From 66caec3f005f3ae2a9cd3d131af710e60d246182 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Tue, 25 Jan 2011 14:16:11 +0000 Subject: [netdevice] Allow devices to indicate that interrupts are not supported Signed-off-by: Michael Brown --- src/include/ipxe/netdevice.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'src/include') diff --git a/src/include/ipxe/netdevice.h b/src/include/ipxe/netdevice.h index a7852a810..ac7cec521 100644 --- a/src/include/ipxe/netdevice.h +++ b/src/include/ipxe/netdevice.h @@ -236,6 +236,9 @@ struct net_device_operations { * * @v netdev Network device * @v enable Interrupts should be enabled + * + * This method may be NULL to indicate that interrupts are not + * supported. */ void ( * irq ) ( struct net_device *netdev, int enable ); }; @@ -515,6 +518,17 @@ netdev_is_open ( struct net_device *netdev ) { return ( netdev->state & NETDEV_OPEN ); } +/** + * Check whether or not network device supports interrupts + * + * @v netdev Network device + * @ret irq_supported Network device supports interrupts + */ +static inline __attribute__ (( always_inline )) int +netdev_irq_supported ( struct net_device *netdev ) { + return ( netdev->op->irq != NULL ); +} + /** * Check whether or not network device interrupts are currently enabled * -- cgit v1.2.3-55-g7522