cmsg_req_map_op
nfp_bpf_ctrl_req_key(struct nfp_app_bpf *bpf, struct cmsg_req_map_op *req,
nfp_bpf_ctrl_req_val(struct nfp_app_bpf *bpf, struct cmsg_req_map_op *req,
struct cmsg_req_map_op *req;
size = sizeof(struct cmsg_req_map_op);
req_max = (mtu - sizeof(struct cmsg_req_map_op)) / entry_sz;