On 10/16/24 12:52 PM, David Wei wrote: > From: David Wei <davidhwei@xxxxxxxx> > > Add a new object called an interface queue (ifq) that represents a net > rx queue that has been configured for zero copy. Each ifq is registered > using a new registration opcode IORING_REGISTER_ZCRX_IFQ. > > The refill queue is allocated by the kernel and mapped by userspace > using a new offset IORING_OFF_RQ_RING, in a similar fashion to the main > SQ/CQ. It is used by userspace to return buffers that it is done with, > which will then be re-used by the netdev again. > > The main CQ ring is used to notify userspace of received data by using > the upper 16 bytes of a big CQE as a new struct io_uring_zcrx_cqe. Each > entry contains the offset + len to the data. Looks nicer now, I like the Kconfig symbol changes. Reviewed-by: Jens Axboe <axboe@xxxxxxxxx> -- Jens Axboe
