EP_CMD_TDL_MAX
if (tdl > EP_CMD_TDL_MAX) {
tdl = EP_CMD_TDL_MAX;
priv_ep->pending_tdl = total_tdl - EP_CMD_TDL_MAX;
if (tdl > EP_CMD_TDL_MAX) {
tdl = EP_CMD_TDL_MAX;
priv_ep->pending_tdl -= EP_CMD_TDL_MAX;
u16 reset_val = EP_CMD_TDL_MAX + 1 - tdl;