On Tue, Aug 30, 2022 at 07:14:51PM +0700, Bagas Sanjaya wrote: > On 8/28/22 11:50, Ming Lei wrote: > > +- UBLK_CMD_ADD_DEV > > + Add one ublk char device(``/dev/ublkc*``) which is talked with ublksrv wrt. > > + IO command communication. Basic device info is sent together with this > > + command, see UAPI structure of ublksrv_ctrl_dev_info, such as nr_hw_queues, > > + queue_depth, and max IO request buffer size, which info is negotiated with > > + ublk driver and sent back to ublksrv. After this command is completed, the > > + basic device info can't be changed any more. > > + > > Is "see UAPI structure" means set the structure? Yes, but some fields may be changed by driver and sent back. thanks, Ming