On Mon, Nov 15, 2021 at 2:08 PM Liu,Feng(INF) <liufeng32@xxxxxxxxx> wrote: > > Hi Experts > I have read the upstream code about vdpa, and I notice that there is a new struct vdpa_mgmt_dev have been added. > Every driver implements dev_add() interface, such as mlx5 use mlx5_vdpa_dev_add(). This interface completes the creation of the vdpa device, hardware initialization and system registration. And I found that only netlink will call the dev_add() interface, in vdpa_nl_cmd_dev_add_set_doit(). While the probe() function just register vdpa_mgmt_dev without call dev_add() > So, my questions are: > Does it create a vdpa device only through the netlink interface? Yes, this is the plan, and we're working on converting all the drivers to support that. > The system scans the PCI device and does not automatically create the corresponding vdpa device? It's a choice for the vDPA parent driver but we suggest creating vDPA via netlink(), this gives a persistent method for the management layer. Thanks > > > Thanks > Feng > _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
