> From: Zhu, Lingshan <lingshan.zhu@xxxxxxxxx> > Sent: Tuesday, July 12, 2022 11:46 PM > > When the user space which invokes netlink commands, detects that _MQ > is not supported, hence it takes max_queue_pair = 1 by itself. > I think the kernel module have all necessary information and it is the only > one which have precise information of a device, so it should answer precisely > than let the user space guess. The kernel module should be reliable than stay > silent, leave the question to the user space tool. Kernel is reliable. It doesn’t expose a config space field if the field doesn’t exist regardless of field should have default or no default. User space should not guess either. User space gets to see if _MQ present/not present. If _MQ present than get reliable data from kernel. If _MQ not present, it means this device has one VQ pair. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
