NTB_LINK_DOWN_TIMEOUT
NTB_LINK_DOWN_TIMEOUT * hz / 1000, ntb_transport_link_work, nt);
NTB_LINK_DOWN_TIMEOUT * hz / 1000, ntb_qp_link_work, qp);
for (i = 0; i < NTB_LINK_DOWN_TIMEOUT; i++) {