IGU_FIFO_ELEMENT_DWORDS
len = IGU_FIFO_ELEMENT_DWORDS;
dwords_read += IGU_FIFO_ELEMENT_DWORDS) {
(IGU_FIFO_ELEMENT_DWORDS * IGU_FIFO_DEPTH_ELEMENTS)
if (param_num_val % IGU_FIFO_ELEMENT_DWORDS)
num_elements = param_num_val / IGU_FIFO_ELEMENT_DWORDS;