diff options
| author |   Mohsin Kazmi <sykazmi@cisco.com> | 2020-04-10 14:57:06 +0000 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2020-04-17 16:36:45 +0000 |
| commit | ce21599c8af34a3f9da813a3c953a38a16316b4d (patch) | |
| tree | 7ac332437239cf76d90d9e56d8cc82723ac301d0 /src/vnet/devices/virtio/pci.c | |
| parent | 82fc98fa4578dbbfb156effb11dea6a4e2d0b898 (diff) | |
virtio: fix to use chained descriptors when missing indirect descriptor
Some vhost-backed missing the VIRTIO_RING_F_INDIRECT_DESC feature.
Previously, vpp doesn't support jumbo frames using chained descriptors.
This patch fixes this issue.
Type: fix
Change-Id: I20487e201e88ea136b556ac84dde058019ab3e78
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet/devices/virtio/pci.c')
| -rw-r--r-- | src/vnet/devices/virtio/pci.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/vnet/devices/virtio/pci.c b/src/vnet/devices/virtio/pci.c index 5482822b54d..c7398c95fe8 100644 --- a/src/vnet/devices/virtio/pci.c +++ b/src/vnet/devices/virtio/pci.c @@ -1052,6 +1052,17 @@ virtio_pci_device_init (vlib_main_t * vm, virtio_if_t * vif, * read device features and negotiate (user) requested features */ virtio_pci_read_device_feature (vm, vif); + if ((vif->remote_features & VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC)) == + 0) + { + virtio_log_warning (vif, "error encountered: vhost-net backend doesn't " + "support VIRTIO_RING_F_INDIRECT_DESC features"); + } + if ((vif->remote_features & VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF)) == 0) + { + virtio_log_warning (vif, "error encountered: vhost-net backend doesn't " + "support VIRTIO_NET_F_MRG_RXBUF features"); + } virtio_negotiate_features (vm, vif, args->features); /* |