dev/malo/if_malo.c

514 	struct malo_rxbuf *bf;
527 	bf = malloc(bsize, M_MALODEV, M_NOWAIT | M_ZERO);
528 	if (bf == NULL) {
533 	sc->malo_rxdma.dd_bufptr = bf;
537 	for (i = 0; i < malo_rxbuf; i++, bf++, ds++) {
538 		bf->bf_desc = ds;
539 		bf->bf_daddr = DS2PHYS(&sc->malo_rxdma, ds);
541 		    &bf->bf_dmamap);
549 		STAILQ_INSERT_TAIL(&sc->malo_rxbuf, bf, bf_list);
558 	struct malo_txbuf *bf;
569 	bf = malloc(bsize, M_MALODEV, M_NOWAIT | M_ZERO);
570 	if (bf == NULL) {
575 	txq->dma.dd_bufptr = bf;
580 	for (i = 0; i < malo_txbuf; i++, bf++, ds += MALO_TXDESC) {
581 		bf->bf_desc = ds;
582 		bf->bf_daddr = DS2PHYS(&txq->dma, ds);
584 		    &bf->bf_dmamap);
591 		STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
611 	struct malo_rxbuf *bf;
613 	STAILQ_FOREACH(bf, &sc->malo_rxbuf, bf_list) {
614 		if (bf->bf_m != NULL) {
615 			m_freem(bf->bf_m);
616 			bf->bf_m = NULL;
618 		if (bf->bf_dmamap != NULL) {
619 			bus_dmamap_destroy(sc->malo_dmat, bf->bf_dmamap);
620 			bf->bf_dmamap = NULL;
635 	struct malo_txbuf *bf;
638 	STAILQ_FOREACH(bf, &txq->free, bf_list) {
639 		if (bf->bf_m != NULL) {
640 			m_freem(bf->bf_m);
641 			bf->bf_m = NULL;
643 		ni = bf->bf_node;
644 		bf->bf_node = NULL;
651 		if (bf->bf_dmamap != NULL) {
652 			bus_dmamap_destroy(sc->malo_dmat, bf->bf_dmamap);
653 			bf->bf_dmamap = NULL;
746 	struct malo_txbuf *bf, *bn;
753 	STAILQ_FOREACH(bf, &txq->free, bf_list) {
754 		bf->bf_txq = txq;
756 		ds = bf->bf_desc;
757 		bn = STAILQ_NEXT(bf, bf_list);
781 	struct malo_txbuf *bf;
784 	bf = STAILQ_FIRST(&txq->free);
785 	if (bf != NULL) {
790 	if (bf == NULL) {
795 	return bf;
799 malo_tx_dmasetup(struct malo_softc *sc, struct malo_txbuf *bf, struct mbuf *m0)
808 	error = bus_dmamap_load_mbuf_sg(sc->malo_dmat, bf->bf_dmamap, m0,
809 				     bf->bf_segs, &bf->bf_nseg,
813 		bf->bf_nseg = MALO_TXDESC + 1;
832 		error = bus_dmamap_load_mbuf_sg(sc->malo_dmat, bf->bf_dmamap, m0,
833 					     bf->bf_segs, &bf->bf_nseg,
840 		KASSERT(bf->bf_nseg <= MALO_TXDESC,
841 		    ("too many segments after defrag; nseg %u", bf->bf_nseg));
842 	} else if (bf->bf_nseg == 0) {		/* null packet, discard */
849 	bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
850 	bf->bf_m = m0;
857 malo_printrxbuf(const struct malo_rxbuf *bf, u_int ix)
859 	const struct malo_rxdesc *ds = bf->bf_desc;
864 	    " RATE:%02x QOS:%04x\n", ix, ds, (uintmax_t)bf->bf_daddr,
874 malo_printtxbuf(const struct malo_txbuf *bf, u_int qnum, u_int ix)
876 	const struct malo_txdesc *ds = bf->bf_desc;
880 	printf(" (DS.V:%p DS.P:0x%jx)\n", ds, (uintmax_t)bf->bf_daddr);
927 	struct malo_txbuf *bf;
937 		bf = STAILQ_FIRST(&txq->active);
938 		if (bf == NULL) {
942 		ds = bf->bf_desc;
954 			malo_printtxbuf(bf, txq->qnum, nreaped);
956 		ni = bf->bf_node;
980 			m_adj(bf->bf_m, sizeof(uint16_t));
981 			ieee80211_tx_complete(ni, bf->bf_m,
984 			m_freem(bf->bf_m);
989 		bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap,
991 		bus_dmamap_unload(sc->malo_dmat, bf->bf_dmamap);
992 		bf->bf_m = NULL;
993 		bf->bf_node = NULL;
996 		STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
1031     struct malo_txbuf *bf, struct mbuf *m0)
1143 	error = malo_tx_dmasetup(sc, bf, m0);
1146 	bf->bf_node = ni;			/* NB: held reference */
1147 	m0 = bf->bf_m;				/* NB: may have changed */
1154 	ds = bf->bf_desc;
1155 	txq = bf->bf_txq;
1158 	ds->pktptr = htole32(bf->bf_segs[0].ds_addr);
1159 	ds->pktlen = htole16(bf->bf_segs[0].ds_len);
1197 	STAILQ_INSERT_TAIL(&txq->active, bf, bf_list);
1231 	struct malo_txbuf *bf = NULL;
1242 		bf = malo_getbuf(sc, txq);
1243 		if (bf == NULL) {
1251 		if (malo_tx_start(sc, ni, bf, m)) {
1254 			if (bf != NULL) {
1255 				bf->bf_m = NULL;
1256 				bf->bf_node = NULL;
1258 				STAILQ_INSERT_HEAD(&txq->free, bf, bf_list);
1341 malo_getrxmbuf(struct malo_softc *sc, struct malo_rxbuf *bf)
1353 	error = bus_dmamap_load(sc->malo_dmat, bf->bf_dmamap,
1362 	bf->bf_data = paddr;
1363 	bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
1369 malo_rxbuf_init(struct malo_softc *sc, struct malo_rxbuf *bf)
1373 	ds = bf->bf_desc;
1374 	if (bf->bf_m == NULL) {
1375 		bf->bf_m = malo_getrxmbuf(sc, bf);
1376 		if (bf->bf_m == NULL) {
1394 	ds->physbuffdata = htole32(bf->bf_data);
1409 	struct malo_rxbuf *bf, *prev;
1418 	STAILQ_FOREACH(bf, &sc->malo_rxbuf, bf_list) {
1419 		int error = malo_rxbuf_init(sc, bf);
1428 			ds->physnext = htole32(bf->bf_daddr);
1430 		prev = bf;
1578 	struct malo_txbuf *bf;
1587 		bf = STAILQ_FIRST(&txq->active);
1588 		if (bf == NULL) {
1598 			    mtod(bf->bf_m, const struct malo_txrec *);
1599 			malo_printtxbuf(bf, txq->qnum, ix);
1601 			    bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1);
1604 		bus_dmamap_unload(sc->malo_dmat, bf->bf_dmamap);
1605 		ni = bf->bf_node;
1606 		bf->bf_node = NULL;
1613 		m_freem(bf->bf_m);
1614 		bf->bf_m = NULL;
1617 		STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
1774 	struct malo_txbuf *bf;
1789 	bf = malo_getbuf(sc, txq);
1790 	if (bf == NULL) {
1798 	if (malo_tx_start(sc, ni, bf, m) != 0) {
1799 		bf->bf_m = NULL;
1800 		bf->bf_node = NULL;
1802 		STAILQ_INSERT_HEAD(&txq->free, bf, bf_list);
1944 	struct malo_rxbuf *bf;
1966 	bf = sc->malo_rxnext;
1968 		if (bf == NULL) {
1969 			bf = STAILQ_FIRST(&sc->malo_rxbuf);
1972 		ds = bf->bf_desc;
1973 		if (bf->bf_m == NULL) {
1983 			(void)malo_rxbuf_init(sc, bf);
1995 			malo_printrxbuf(bf, 0);
2006 		bus_dmamap_sync(sc->malo_dmat, bf->bf_dmamap,
2014 		m = bf->bf_m;
2036 		mnew = malo_getrxmbuf(sc, bf);
2046 		bf->bf_m = mnew;
2081 		(void) malo_rxbuf_init(sc, bf);
2082 		bf = STAILQ_NEXT(bf, bf_list);
2086 	sc->malo_rxnext = bf;