RFA_ALIGNMENT_FUDGE
m->m_data += RFA_ALIGNMENT_FUDGE;
htole16(MCLBYTES - sizeof(struct fxp_rfa) - RFA_ALIGNMENT_FUDGE);
v = htole32(rxmap->dm_segs[0].ds_addr + RFA_ALIGNMENT_FUDGE);
rfap = sc->rfa_tailm->m_ext.ext_buf + RFA_ALIGNMENT_FUDGE;
rfap = m->m_ext.ext_buf + RFA_ALIGNMENT_FUDGE;
RFA_ALIGNMENT_FUDGE);