ipdu_u
bzero(&pp->ipdu, sizeof(union ipdu_u));
mh->m_len = mh->m_pkthdr.len = sizeof(union ipdu_u);
MH_ALIGN(mh, sizeof(union ipdu_u));
bcopy(&pp->ipdu, mh->m_data, sizeof(union ipdu_u));
pq->pdu.hdr_dig = sp->hdrDigest(&pp->ipdu, sizeof(union ipdu_u), 0);
iv->iov_len = sizeof(union ipdu_u);
pq->pdu.hdr_dig = sp->hdrDigest(&pp->ipdu, sizeof(union ipdu_u), 0);
pq->buf = bp = kmalloc(pq->len - sizeof(union ipdu_u), M_ISCSI, M_NOWAIT);
union ipdu_u ipdu;