On 2019/11/21 下午2:26, Jesper Dangaard Brouer wrote:
On Wed, 20 Nov 2019 21:05:48 -0700 David Ahern <dsahern@xxxxxxxxx> wrote:On 11/20/19 8:54 PM, Jason Wang wrote:The current error message is: virtio_net: Too few free TX rings available again, looking for some libvirt setting for the vm create.Make sure you have sufficient queues, e.g if you N vcpus with multiqueue enabled, you need 2*N queues for virtio-net.yep, that did the trick and now I can attach xdp programs. Thanks for the help.How did you configure number of queues in libbvirt?
By specifying queues property like: <devices> <interface type='network'> <source network='default'/> <target dev='vnet1'/> <model type='virtio'/><driver name='vhost' txmode='iothread' ioeventfd='on' event_idx='off' queues='5' rx_queue_size='256' tx_queue_size='256'> <host csum='off' gso='off' tso4='off' tso6='off' ecn='off' ufo='off' mrg_rxbuf='off'/>
<guest csum='off' tso4='off' tso6='off' ecn='off' ufo='off'/> </driver> </interface> </devices> More information is here: https://libvirt.org/formatdomain.html Thanks
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