io_uring_register_napi(3)	 liburing Manual       io_uring_register_napi(3)

NAME
     io_uring_register_napi - register NAPI busy poll settings

SYNOPSIS
     #include <liburing.h>

     int io_uring_register_napi(struct io_uring *ring,
				struct io_uring_napi *napi)

DESCRIPTION
     The io_uring_register_napi(3) function registers the NAPI settings for sub-
     sequent  operations.  The NAPI settings are specified in the structure that
     is passed in the napi parameter. The structure consists of the napi timeout
     busy_poll_to (napi busy poll timeout in us) and prefer_busy_poll.

     Registering a NAPI	 settings  sets	 the  mode  when  calling  the	function
     napi_busy_loop and corresponds to the SO_PREFER_BUSY_POLL socket option.

     NAPI busy poll can reduce the network roundtrip time.



RETURN VALUE
     On	 success io_uring_register_napi(3) return 0. On failure they return -er-
     rno.  It also updates the napi structure with the current values.

liburing-2.4			November 16, 2022      io_uring_register_napi(3)