Hi, I am using OVDK userspace-vhost interfaces for VM-to-external communication and facing an issue with them.
I am using the topology mentioned in https://github.com/01org/dpdk-ovs/blob/development/docs/04_Sample_Configurations/02_Userspace-vHost.md But the Guest is a Freebsd VM and our own custom userspace virtio drivers. Guest does not have DPDK. 1. I could start OVDK application and vswitchd, and provision a FreeBSD Guest VM with two userspace-vhost interfaces. 2. These two userspace-vhost interfaces do not have VIRTIO_RING_F_INDIRECT_DESC capability negotiated from backend OVDK-Qemu 3. Inside the freebsd VM, i have my own userspace drivers running, which make use of indirect descriptors of virtio. 4. *Question 1* : By default, without INDIRECT descriptor capability, my drivers fail to run. Is there any way to increase ring size of virtio? This can help us avoid using indirect descriptors because of more space in the ring 5. *Question 2*: When I try to set the capability from backend QEMU, guest drivers do not see any packets reaching the guest. Is there any way to resolve this ?? Any help/suggestion would be of great help. *Thanks & Regards,* *Saikiran V*
