MEGAMFI_FRAME_SIZE
tot_frame_size = sgl_sz + MEGAMFI_FRAME_SIZE + SENSE_LENGTH;
(void) memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
cmd->frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +
((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) + 1;