IRDMA_MRK_BLK_SZ
blk_start = (pfpdu->rcv_start_seq - rcv_seq) & (IRDMA_MRK_BLK_SZ - 1);
marker_seq = rcv_seq + IRDMA_MRK_BLK_SZ;
marker_seq += IRDMA_MRK_BLK_SZ;