In prerequisites of ntb guide, the correct flag when loading igb_uio module should be `wc_activate=1`, not `wc_active=1`. Fixes: 11b5c7daf019 ("raw/ntb: add enqueue and dequeue functions") Cc: stable@dpdk.org Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com> Acked-by: Jingjing Wu <jingjing.wu@intel.com>