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Commit 9805069d authored by Sridhar Samudrala's avatar Sridhar Samudrala Committed by David S. Miller
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virtio_net: Introduce VIRTIO_NET_F_STANDBY feature bit 



This feature bit can be used by hypervisor to indicate virtio_net device to
act as a standby for another device with the same MAC address.

VIRTIO_NET_F_STANDBY is defined as bit 62 as it is a device feature bit.

Signed-off-by: default avatarSridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cfc80d9a

drivers/net/virtio_net.c

+1 −1
Original line number Diff line number Diff line
@@ -3030,7 +3030,7 @@ static struct virtio_device_id id_table[] = { 
	VIRTIO_NET_F_GUEST_ANNOUNCE, VIRTIO_NET_F_MQ, \

	VIRTIO_NET_F_CTRL_MAC_ADDR, \

	VIRTIO_NET_F_MTU, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, \

	VIRTIO_NET_F_SPEED_DUPLEX

	VIRTIO_NET_F_SPEED_DUPLEX, VIRTIO_NET_F_STANDBY



static unsigned int features[] = {

	VIRTNET_FEATURES,

include/uapi/linux/virtio_net.h

+3 −0
Original line number Diff line number Diff line
@@ -57,6 +57,9 @@ 
					 * Steering */

#define VIRTIO_NET_F_CTRL_MAC_ADDR 23	/* Set MAC address */



#define VIRTIO_NET_F_STANDBY	  62	/* Act as standby for another device

					 * with the same MAC.

					 */

#define VIRTIO_NET_F_SPEED_DUPLEX 63	/* Device set linkspeed and duplex */



#ifndef VIRTIO_NET_NO_LEGACY