summaryrefslogtreecommitdiffstats
path: root/src/vnet/devices/virtio/pci.c
diff options
context:
space:
mode:
authorMohsin Kazmi <sykazmi@cisco.com>2020-04-10 14:57:06 +0000
committerDamjan Marion <dmarion@me.com>2020-04-17 16:36:45 +0000
commitce21599c8af34a3f9da813a3c953a38a16316b4d (patch)
tree7ac332437239cf76d90d9e56d8cc82723ac301d0 /src/vnet/devices/virtio/pci.c
parent82fc98fa4578dbbfb156effb11dea6a4e2d0b898 (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.c11
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);
/*