kata-containers/cloud-hypervisor
1
0
Fork 0
mirror of https://github.com/cloud-hypervisor/cloud-hypervisor.git synced 2026-08-05 02:19:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files
virtio-devices/src/vhost_user/net.rs
+3 -6
View File
@@ -28,11 +28,10 @@ use vmm_sys_util::eventfd::EventFd;
use crate::seccomp_filters::Thread; use crate::seccomp_filters::Thread;
use crate::thread_helper::spawn_virtio_thread; use crate::thread_helper::spawn_virtio_thread;
use crate::vhost_user::vu_common_ctrl::{VhostUserConfig, VhostUserHandle}; 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::{ use crate::{
ActivateResult, GuestMemoryMmap, GuestRegionMmap, NetCtrlEpollHandler, VIRTIO_F_IOMMU_PLATFORM, ActivateResult, GuestMemoryMmap, GuestRegionMmap, NetCtrlEpollHandler, VIRTIO_F_IOMMU_PLATFORM,
VIRTIO_F_RING_EVENT_IDX, VIRTIO_F_VERSION_1, VirtioCommon, VirtioDevice, VirtioDeviceType, VirtioCommon, VirtioDevice, VirtioDeviceType, VirtioInterrupt,
VirtioInterrupt,
}; };
const DEFAULT_QUEUE_NUMBER: usize = 2; const DEFAULT_QUEUE_NUMBER: usize = 2;
@@ -122,9 +121,7 @@ impl Net {
// Filling device and vring features VMM supports. // Filling device and vring features VMM supports.
let mut avail_features = (1 << VIRTIO_NET_F_MRG_RXBUF) let mut avail_features = (1 << VIRTIO_NET_F_MRG_RXBUF)
| (1 << VIRTIO_NET_F_CTRL_VQ) | (1 << VIRTIO_NET_F_CTRL_VQ)
| (1 << VIRTIO_F_RING_EVENT_IDX) | DEFAULT_VIRTIO_FEATURES;
| (1 << VIRTIO_F_VERSION_1)
| VhostUserVirtioFeatures::PROTOCOL_FEATURES.bits();
if mtu.is_some() { if mtu.is_some() {
avail_features |= 1u64 << VIRTIO_NET_F_MTU; avail_features |= 1u64 << VIRTIO_NET_F_MTU;