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| author | Jason Wang <jasowang@redhat.com> | 2016-03-04 06:24:53 -0500 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-03-11 02:18:53 +0200 |
| commit | 0308813724606549436d30efd877a80c8e00790e (patch) | |
| tree | 9ce96f57528d75f21df24831ad35fca9fdc7a4d4 /include/uapi | |
| parent | d4a60603fa0b42012decfa058dfa44cffde7a10c (diff) | |
| download | linux-0-day-0308813724606549436d30efd877a80c8e00790e.tar.gz linux-0-day-0308813724606549436d30efd877a80c8e00790e.tar.xz | |
vhost_net: basic polling support
This patch tries to poll for new added tx buffer or socket receive
queue for a while at the end of tx/rx processing. The maximum time
spent on polling were specified through a new kind of vring ioctl.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/vhost.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index ab3731917bac3..61a8777178c60 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -126,6 +126,12 @@ struct vhost_memory { #define VHOST_SET_VRING_CALL _IOW(VHOST_VIRTIO, 0x21, struct vhost_vring_file) /* Set eventfd to signal an error */ #define VHOST_SET_VRING_ERR _IOW(VHOST_VIRTIO, 0x22, struct vhost_vring_file) +/* Set busy loop timeout (in us) */ +#define VHOST_SET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x23, \ + struct vhost_vring_state) +/* Get busy loop timeout (in us) */ +#define VHOST_GET_VRING_BUSYLOOP_TIMEOUT _IOW(VHOST_VIRTIO, 0x24, \ + struct vhost_vring_state) /* VHOST_NET specific defines */ |