WPI_PAD32
desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 |
desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24);
desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24);
desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24);