dev/mwl/if_mwl.c

246 static	void mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix);
247 static	void mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix);
1271 	struct mwl_txbuf *bf;
1277 	bf = STAILQ_FIRST(&txq->free);
1278 	if (bf != NULL) {
1283 	if (bf == NULL)
1286 	return bf;
1296 mwl_puttxbuf_head(struct mwl_txq *txq, struct mwl_txbuf *bf)
1298 	bf->bf_m = NULL;
1299 	bf->bf_node = NULL;
1301 	STAILQ_INSERT_HEAD(&txq->free, bf, bf_list);
1307 mwl_puttxbuf_tail(struct mwl_txq *txq, struct mwl_txbuf *bf)
1309 	bf->bf_m = NULL;
1310 	bf->bf_node = NULL;
1312 	STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
1342 	struct mwl_txbuf *bf;
1363 		bf = mwl_gettxbuf(sc, txq);
1364 		if (bf == NULL) {
1381 		if (mwl_tx_start(sc, ni, bf, m)) {
1384 			mwl_puttxbuf_head(txq, bf);
1422 	struct mwl_txbuf *bf;
1438 	bf = mwl_gettxbuf(sc, txq);
1439 	if (bf == NULL) {
1447 	if (mwl_tx_start(sc, ni, bf, m)) {
1448 		mwl_puttxbuf_head(txq, bf);
2013 	struct mwl_txbuf *bf;
2016 	bf = txq->dma.dd_bufptr;
2018 	for (i = 0; i < mwl_txbuf; i++, bf++)
2019 		STAILQ_INSERT_TAIL(&txq->free, bf, bf_list);
2030 	struct mwl_txbuf *bf;
2041 	bf = malloc(bsize, M_MWLDEV, M_NOWAIT | M_ZERO);
2042 	if (bf == NULL) {
2047 	txq->dma.dd_bufptr = bf;
2050 	for (i = 0; i < mwl_txbuf; i++, bf++, ds += MWL_TXDESC) {
2051 		bf->bf_desc = ds;
2052 		bf->bf_daddr = DS2PHYS(&txq->dma, ds);
2054 				&bf->bf_dmamap);
2068 	struct mwl_txbuf *bf;
2071 	bf = txq->dma.dd_bufptr;
2072 	for (i = 0; i < mwl_txbuf; i++, bf++) {
2073 		KASSERT(bf->bf_m == NULL, ("mbuf on free list"));
2074 		KASSERT(bf->bf_node == NULL, ("node on free list"));
2075 		if (bf->bf_dmamap != NULL)
2076 			bus_dmamap_destroy(sc->sc_dmat, bf->bf_dmamap);
2092 	struct mwl_rxbuf *bf;
2161 	bf = malloc(bsize, M_MWLDEV, M_NOWAIT | M_ZERO);
2162 	if (bf == NULL) {
2166 	sc->sc_rxdma.dd_bufptr = bf;
2170 	for (i = 0; i < mwl_rxdesc; i++, bf++, ds++) {
2171 		bf->bf_desc = ds;
2172 		bf->bf_daddr = DS2PHYS(&sc->sc_rxdma, ds);
2174 		bf->bf_data = ((uint8_t *)sc->sc_rxmem) + (i*jumbosize);
2176 		STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
2488 mwl_rxbuf_init(struct mwl_softc *sc, struct mwl_rxbuf *bf)
2492 	ds = bf->bf_desc;
2493 	if (bf->bf_data == NULL) {
2494 		bf->bf_data = mwl_getrxdma(sc);
2495 		if (bf->bf_data == NULL) {
2518 	ds->pPhysBuffData = htole32(MWL_JUMBO_DMA_ADDR(sc, bf->bf_data));
2613 	struct mwl_rxbuf *bf;
2628 	bf = sc->sc_rxnext;
2630 		if (bf == NULL)
2631 			bf = STAILQ_FIRST(&sc->sc_rxbuf);
2632 		ds = bf->bf_desc;
2633 		data = bf->bf_data;
2644 			(void) mwl_rxbuf_init(sc, bf);
2654 			mwl_printrxbuf(bf, 0);
2743 		bf->bf_data = newdata;
2816 		(void) mwl_rxbuf_init(sc, bf);
2817 		bf = STAILQ_NEXT(bf, bf_list);
2820 	sc->sc_rxnext = bf;
2832 	struct mwl_txbuf *bf, *bn;
2842 	STAILQ_FOREACH(bf, &txq->free, bf_list) {
2843 		bf->bf_txq = txq;
2845 		ds = bf->bf_desc;
2846 		bn = STAILQ_NEXT(bf, bf_list);
2950 mwl_tx_dmasetup(struct mwl_softc *sc, struct mwl_txbuf *bf, struct mbuf *m0)
2959 	error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0,
2960 				     bf->bf_segs, &bf->bf_nseg,
2964 		bf->bf_nseg = MWL_TXDESC+1;
2988 		error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m0,
2989 					     bf->bf_segs, &bf->bf_nseg,
2996 		KASSERT(bf->bf_nseg <= MWL_TXDESC,
2997 		    ("too many segments after defrag; nseg %u", bf->bf_nseg));
2998 	} else if (bf->bf_nseg == 0) {		/* null packet, discard */
3005 	bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);
3006 	bf->bf_m = m0;
3072 mwl_tx_start(struct mwl_softc *sc, struct ieee80211_node *ni, struct mwl_txbuf *bf,
3191 	error = mwl_tx_dmasetup(sc, bf, m0);
3198 	bf->bf_node = ni;			/* NB: held reference */
3199 	m0 = bf->bf_m;				/* NB: may have changed */
3206 	ds = bf->bf_desc;
3207 	txq = bf->bf_txq;
3217 	ds->PktPtr = htole32(bf->bf_segs[0].ds_addr);
3218 	ds->PktLen = htole16(bf->bf_segs[0].ds_len);
3220 	ds->multiframes = htole32(bf->bf_nseg);
3222 	for (i = 0; i < bf->bf_nseg; i++) {
3223 		ds->PktPtrArray[i] = htole32(bf->bf_segs[i].ds_addr);
3224 		ds->PktLenArray[i] = htole16(bf->bf_segs[i].ds_len);
3302 	STAILQ_INSERT_TAIL(&txq->active, bf, bf_list);
3328 	struct mwl_txbuf *bf;
3338 		bf = STAILQ_FIRST(&txq->active);
3339 		if (bf == NULL) {
3343 		ds = bf->bf_desc;
3355 			mwl_printtxbuf(bf, txq->qnum, nreaped);
3357 		ni = bf->bf_node;
3388 				if (bf->bf_m->m_flags & M_FF)
3391 			if (bf->bf_m->m_flags & M_TXCB)
3393 				m_adj(bf->bf_m, sizeof(uint16_t));
3394 			ieee80211_tx_complete(ni, bf->bf_m,
3397 			m_freem(bf->bf_m);
3400 		bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
3402 		bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
3404 		mwl_puttxbuf_tail(txq, bf);
3447 	struct mwl_txbuf *bf;
3456 		bf = STAILQ_FIRST(&txq->active);
3457 		if (bf == NULL) {
3467 			    mtod(bf->bf_m, const struct mwltxrec *);
3468 			mwl_printtxbuf(bf, txq->qnum, ix);
3470 				bf->bf_m->m_len - sizeof(tr->fwlen), 0, -1);
3473 		bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
3474 		ni = bf->bf_node;
3481 		m_freem(bf->bf_m);
3483 		mwl_puttxbuf_tail(txq, bf);
3525 	struct mwl_txbuf *bf;
3531 		STAILQ_FOREACH(bf, &txq->active, bf_list) {
3532 			struct ieee80211_node *ni = bf->bf_node;
3534 				bf->bf_node = NULL;
3728 		struct mwl_rxbuf *bf, *prev;
3732 		STAILQ_FOREACH(bf, &sc->sc_rxbuf, bf_list) {
3733 			int error = mwl_rxbuf_init(sc, bf);
3742 				ds->pPhysNext = htole32(bf->bf_daddr);
3744 			prev = bf;
4487 mwl_printrxbuf(const struct mwl_rxbuf *bf, u_int ix)
4489 	const struct mwl_rxdesc *ds = bf->bf_desc;
4494 	    ix, ds, (uintmax_t)bf->bf_daddr, le32toh(ds->pPhysNext),
4503 mwl_printtxbuf(const struct mwl_txbuf *bf, u_int qnum, u_int ix)
4505 	const struct mwl_txdesc *ds = bf->bf_desc;
4509 	printf(" (DS.V:%p DS.P:0x%jx)\n", ds, (uintmax_t)bf->bf_daddr);
4549 	struct mwl_txbuf *bf;
4553 	STAILQ_FOREACH(bf, &txq->active, bf_list) {
4554 		struct mwl_txdesc *ds = bf->bf_desc;
4558 		mwl_printtxbuf(bf, txq->qnum, i);