dev/hatm/if_hatm_tx.c

111 static struct tpd *
114 	struct tpd *t;
127 	KASSERT(t != NULL, ("tpd botch"));
135 	bzero(&t->tpd, sizeof(t->tpd));
136 	t->tpd.addr = t->no << HE_REGS_TPD_ADDR;
148 hatm_free_tpd(struct hatm_softc *sc, struct tpd *tpd)
150 	if (tpd->mbuf != NULL) {
151 		bus_dmamap_unload(sc->tx_tag, tpd->map);
153 		m_freem(tpd->mbuf);
154 		tpd->mbuf = NULL;
158 	SLIST_INSERT_HEAD(&sc->tpd_free, tpd, link);
159 	TPD_CLR_USED(sc, tpd->no);
168 hatm_queue_tpds(struct hatm_softc *sc, u_int count, struct tpd **list,
212 		sc->tpdrq.tpdrq[sc->tpdrq.tail].tpd =
231 	struct tpd *first;
253 	struct tpd *tpd;
254 	struct tpd *tpd_list[HE_CONFIG_MAX_TPD_PER_PACKET];
290 	tpd = arg->first;
292 	tpd_list[tpd_cnt++] = tpd;
295 			if ((tpd = hatm_alloc_tpd(arg->sc, M_NOWAIT)) == NULL)
298 			tpd->cid = arg->first->cid;
299 			tpd->tpd.addr |= arg->pti;
300 			tpd_list[tpd_cnt++] = tpd;
309 		tpd->tpd.bufs[n].addr = segs[i].ds_addr;
310 		tpd->tpd.bufs[n].len = segs[i].ds_len;
312 		DBG(arg->sc, TX, ("seg[%u]=tpd[%u,%u]=%x/%u", i,
313 		    tpd_cnt, n, tpd->tpd.bufs[n].addr, tpd->tpd.bufs[n].len));
316 			tpd->tpd.bufs[n].len |= HE_REGM_TPD_LST;
334 		tpd_list[tpd_cnt - 1]->tpd.addr |= HE_REGM_TPD_INTR;
358 	struct tpd *tpd;
451 		if ((tpd = hatm_alloc_tpd(sc, M_NOWAIT)) == NULL) {
457 		tpd->cid = cid;
458 		tpd->tpd.addr |= arg.pti;
459 		arg.first = tpd;
463 		error = bus_dmamap_load_mbuf(sc->tx_tag, tpd->map, m,
471 				tpd->mbuf = NULL;
473 				hatm_free_tpd(sc, tpd);
478 			error = bus_dmamap_load_mbuf(sc->tx_tag, tpd->map, m,
485 			hatm_free_tpd(sc, tpd);
490 			hatm_free_tpd(sc, tpd);
502 hatm_tx_complete(struct hatm_softc *sc, struct tpd *tpd, uint32_t flags)
504 	struct hevcc *vcc = sc->vccs[tpd->cid];
506 	DBG(sc, TX, ("tx_complete cid=%#x flags=%#x", tpd->cid, flags));
513 			hatm_tx_vcc_closed(sc, tpd->cid);
515 				hatm_vcc_closed(sc, tpd->cid);
521 	hatm_free_tpd(sc, tpd);
532 		    HE_VPI(tpd->cid), HE_VCI(tpd->cid), 0);
781 	struct tpd *tpd_list[1];
805 	tpd_list[0]->tpd.addr |= HE_REGM_TPD_EOS | HE_REGM_TPD_INTR;