Re: [Qemu-devel] vhost-user:is miss command VHOST_NET_SET_BACKEND?

2014-09-17 Thread Linhaifeng
sorry it is not need to add VHOST_NET_SET_BACKEND.I found i can reset in VHOST_GET_VRING_BASE because before the backend cleanup it will send VHOST_GET_VRING_BASE. On 2014/9/17 13:50, Linhaifeng wrote: Hi, The VHOST_NET_SET_BACKEND could tell the user when the backend is created or

Re: [Qemu-devel] vhost-user:is miss command VHOST_NET_SET_BACKEND?

2014-09-17 Thread Michael S. Tsirkin
I guess it's a workaround, but I think it's an ugly one. Let's add this command properly. What's the best way to do this? A feature bit? Or just add a new command and assume remote ignores what it can't handle? Nikolay, docs/specs/vhost-user.txt seems silent on this aspect. Can you send a patch

[Qemu-devel] vhost-user:is miss command VHOST_NET_SET_BACKEND?

2014-09-16 Thread Linhaifeng
Hi, The VHOST_NET_SET_BACKEND could tell the user when the backend is created or destroyed.is usefull for the user but this command is lost in the protocol