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virtio-devices: vhost-user: net: Use default vhost-user virtio features

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This adds some missing features that are useful. In particular it adds
VIRTIO_F_RING_INDIRECT_DESC which gives a performance improvement.

Signed-off-by: Rob Bradford <rbradford@meta.com>
Reported-by: Daniel Farina <daniel@ubicloud.com>
This commit is contained in:
Rob Bradford 2026-02-02 01:40:01 -08:00 • committed by Rob Bradford
parent 28686bba46
commit 01bd6b8b1a
1 changed files with 3 additions and 6 deletions
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9
virtio-devices/src/vhost_user/net.rs
View file

@ -28,11 +28,10 @@ use vmm_sys_util::eventfd::EventFd;
use crate::seccomp_filters::Thread;
use crate::thread_helper::spawn_virtio_thread;
use crate::vhost_user::vu_common_ctrl::{VhostUserConfig, VhostUserHandle};
use crate::vhost_user::{Error, Result, VhostUserCommon};
use crate::vhost_user::{DEFAULT_VIRTIO_FEATURES, Error, Result, VhostUserCommon};
use crate::{
ActivateResult, GuestMemoryMmap, GuestRegionMmap, NetCtrlEpollHandler, VIRTIO_F_IOMMU_PLATFORM,
VIRTIO_F_RING_EVENT_IDX, VIRTIO_F_VERSION_1, VirtioCommon, VirtioDevice, VirtioDeviceType,
VirtioInterrupt,
VirtioCommon, VirtioDevice, VirtioDeviceType, VirtioInterrupt,
};
const DEFAULT_QUEUE_NUMBER: usize = 2;
@ -122,9 +121,7 @@ impl Net {
// Filling device and vring features VMM supports.
let mut avail_features = (1 << VIRTIO_NET_F_MRG_RXBUF)
| (1 << VIRTIO_NET_F_CTRL_VQ)
| (1 << VIRTIO_F_RING_EVENT_IDX)
| (1 << VIRTIO_F_VERSION_1)
| VhostUserVirtioFeatures::PROTOCOL_FEATURES.bits();
| DEFAULT_VIRTIO_FEATURES;
if mtu.is_some() {
avail_features |= 1u64 << VIRTIO_NET_F_MTU;