QSFP_DUMP_CHUNK
u8 bin_buff[QSFP_DUMP_CHUNK];
memcpy(bin_buff, &cache[bidx], QSFP_DUMP_CHUNK);
for (iidx = 0; iidx < QSFP_DUMP_CHUNK; ++iidx) {
bidx += QSFP_DUMP_CHUNK;