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Implement virtio_net link status (Mark McLoughlin)

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Implement the VIRTIO_NET_F_STATUS feature by exposing the link status
through virtio_net_config::status.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6250 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-01-08 19:46:33 +00:00
parent 99ed7e30cb
commit 554c97dd43
2 changed files with 27 additions and 3 deletions
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7
hw/virtio-net.h
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@ -37,16 +37,21 @@
#define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */
#define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */
#define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */
#define VIRTIO_NET_F_STATUS 16 /* virtio_net_config.status available */
#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
#define TX_TIMER_INTERVAL 150000 /* 150 us */
/* Maximum packet size we can receive from tap device: header + 64k */
#define VIRTIO_NET_MAX_BUFSIZE (sizeof(struct virtio_net_hdr) + (64 << 10))
/* The config defining mac address (6 bytes) */
struct virtio_net_config
{
/* The config defining mac address (6 bytes) */
uint8_t mac[6];
/* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */
uint16_t status;
} __attribute__((packed));
/* This is the first element of the scatter-gather list. If you don't