dev/ath/if_ath.c

3114 	struct ath_buf *bf;
3119 		bf = TAILQ_FIRST(&sc->sc_txbuf_mgmt);
3121 		bf = TAILQ_FIRST(&sc->sc_txbuf);
3123 	if (bf == NULL) {
3126 		if (bf->bf_flags & ATH_BUF_BUSY) {
3128 			bf = NULL;
3132 	if (bf != NULL && (bf->bf_flags & ATH_BUF_BUSY) == 0) {
3134 			TAILQ_REMOVE(&sc->sc_txbuf_mgmt, bf, bf_list);
3136 			TAILQ_REMOVE(&sc->sc_txbuf, bf, bf_list);
3152 		bf = NULL;
3154 	if (bf == NULL) {
3164 	bf->bf_flags = 0;
3166 		bf->bf_flags |= ATH_BUF_MGMT;
3168 		bf->bf_flags &= (~ATH_BUF_MGMT);
3170 	/* Valid bf here; clear some basic fields */
3171 	bf->bf_next = NULL;	/* XXX just to be sure */
3172 	bf->bf_last = NULL;	/* XXX again, just to be sure */
3173 	bf->bf_comp = NULL;	/* XXX again, just to be sure */
3174 	bzero(&bf->bf_state, sizeof(bf->bf_state));
3180 		bf->bf_descid = sc->sc_txbuf_descid;
3184 	return bf;
3202 ath_buf_clone(struct ath_softc *sc, struct ath_buf *bf)
3207 	    (bf->bf_flags & ATH_BUF_MGMT) ?
3214 	tbf->bf_nseg = bf->bf_nseg;
3215 	tbf->bf_flags = bf->bf_flags & ATH_BUF_FLAGS_CLONE;
3216 	tbf->bf_status = bf->bf_status;
3217 	tbf->bf_m = bf->bf_m;
3218 	tbf->bf_node = bf->bf_node;
3219 	KASSERT((bf->bf_node != NULL), ("%s: bf_node=NULL!", __func__));
3224 	tbf->bf_comp = bf->bf_comp;
3235 	if (bf->bf_m != NULL) {
3239 		bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
3241 		bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
3244 	bf->bf_m = NULL;
3245 	bf->bf_node = NULL;
3248 	memcpy(&tbf->bf_state, &bf->bf_state, sizeof(bf->bf_state));
3256 	struct ath_buf *bf;
3259 	bf = _ath_getbuf_locked(sc, btype);
3264 	if (bf == NULL && btype == ATH_BUFTYPE_MGMT)
3265 		bf = _ath_getbuf_locked(sc, ATH_BUFTYPE_NORMAL);
3267 	if (bf == NULL) {
3271 	return bf;
3286 	struct ath_buf *bf;
3376 		bf = ath_getbuf(sc, ATH_BUFTYPE_MGMT);
3378 		bf = ath_getbuf(sc, ATH_BUFTYPE_NORMAL);
3380 	if (bf == NULL) {
3440 		struct ath_buf *fbf = bf;
3477 	if (ath_tx_start(sc, ni, bf, m)) {
3481 		bf->bf_m = NULL;
3482 		bf->bf_node = NULL;
3484 		ath_returnbuf_head(sc, bf);
3522 		bf = TAILQ_FIRST(&frags);
3523 		KASSERT(bf != NULL, ("no buf for txfrag"));
3524 		TAILQ_REMOVE(&frags, bf, bf_list);
4181     struct ath_buf *bf)
4183 	struct ieee80211_node *ni = bf->bf_node;
4195 		pri = M_WME_GETAC(bf->bf_m);
4199 		if ((bf->bf_state.bfs_txflags & HAL_TXDESC_NOACK) == 0)
4213 		if (bf->bf_m->m_flags & M_FF)
4245 ath_tx_default_comp(struct ath_softc *sc, struct ath_buf *bf, int fail)
4247 	struct ath_tx_status *ts = &bf->bf_status.ds_txstat;
4253 		st = ((bf->bf_state.bfs_txflags & HAL_TXDESC_NOACK) == 0) ?
4257 	if (bf->bf_state.bfs_dobaw)
4259 		    "%s: bf %p: seqno %d: dobaw should've been cleared!\n",
4261 		    bf,
4262 		    SEQNO(bf->bf_state.bfs_seqno));
4264 	if (bf->bf_next != NULL)
4266 		    "%s: bf %p: seqno %d: bf_next not NULL!\n",
4268 		    bf,
4269 		    SEQNO(bf->bf_state.bfs_seqno));
4286 	if (bf->bf_node) {
4288 		ath_tx_update_tim(sc, bf->bf_node, 0);
4298 	ath_tx_freebuf(sc, bf, st);
4337  * bf pointer should be treated as invalid after this function is called.
4341     struct ath_tx_status *ts, struct ath_buf *bf)
4343 	struct ieee80211_node *ni = bf->bf_node;
4351 		ath_tx_update_stats(sc, ts, bf);
4362 	if (bf->bf_comp == NULL) {
4364 		    (bf->bf_state.bfs_txflags & HAL_TXDESC_NOACK) == 0) {
4373 			     bf->bf_state.bfs_rc, ts,
4374 			    bf->bf_state.bfs_pktlen,
4375 			    bf->bf_state.bfs_pktlen,
4379 		ath_tx_default_comp(sc, bf, 0);
4381 		bf->bf_comp(sc, bf, 0);
4393 	struct ath_buf *bf;
4419 		bf = TAILQ_FIRST(&txq->axq_q);
4420 		if (bf == NULL) {
4424 		ds = bf->bf_lastds;	/* XXX must be setup correctly! */
4425 		ts = &bf->bf_status.ds_txstat;
4430 			ath_printtxbuf(sc, bf, txq->axq_qnum, 0,
4433 			ath_printtxbuf(sc, bf, txq->axq_qnum, 0,
4447 			    "ath_tx_processq: txq=%u, bf=%p ds=%p, HAL_EINPROGRESS",
4448 			    txq->axq_qnum, bf, ds);
4452 		ATH_TXQ_REMOVE(txq, bf, bf_list);
4457 		if (txq->axq_qnum != bf->bf_state.bfs_tx_queue) {
4459 			    "%s: TXQ=%d: bf=%p, bfs_tx_queue=%d\n",
4462 			    bf,
4463 			    bf->bf_state.bfs_tx_queue);
4465 		if (txq->axq_qnum != bf->bf_last->bf_state.bfs_tx_queue) {
4470 			    bf->bf_last,
4471 			    bf->bf_last->bf_state.bfs_tx_queue);
4485 			bf->bf_last->bf_flags |= ATH_BUF_BUSY;
4489 		bf->bf_last->bf_flags |= ATH_BUF_BUSY;
4491 		if (bf->bf_state.bfs_aggr)
4494 		ni = bf->bf_node;
4497 		    "ath_tx_processq: txq=%u, bf=%p, ds=%p, ni=%p, ts_status=0x%08x",
4498 		    txq->axq_qnum, bf, ds, ni, ts->ts_status);
4505 		    ((bf->bf_state.bfs_txflags & HAL_TXDESC_NOACK) == 0)) {
4518 		ath_tx_process_buf_completion(sc, txq, ts, bf);
4520 		/* XXX at this point, bf and ni may be totally invalid */
4740 ath_returnbuf_tail(struct ath_softc *sc, struct ath_buf *bf)
4745 	if (bf->bf_flags & ATH_BUF_MGMT)
4746 		TAILQ_INSERT_TAIL(&sc->sc_txbuf_mgmt, bf, bf_list);
4748 		TAILQ_INSERT_TAIL(&sc->sc_txbuf, bf, bf_list);
4761 ath_returnbuf_head(struct ath_softc *sc, struct ath_buf *bf)
4766 	if (bf->bf_flags & ATH_BUF_MGMT)
4767 		TAILQ_INSERT_HEAD(&sc->sc_txbuf_mgmt, bf, bf_list);
4769 		TAILQ_INSERT_HEAD(&sc->sc_txbuf, bf, bf_list);
4807 ath_txq_addholdingbuf(struct ath_softc *sc, struct ath_buf *bf)
4811 	txq = &sc->sc_txq[bf->bf_state.bfs_tx_queue];
4819 	if (bf->bf_state.bfs_tx_queue > HAL_NUM_TX_QUEUES) {
4820 		device_printf(sc->sc_dev, "%s: bf=%p: invalid tx queue (%d)\n",
4822 		    bf,
4823 		    bf->bf_state.bfs_tx_queue);
4824 		bf->bf_flags &= ~ATH_BUF_BUSY;
4825 		ath_returnbuf_tail(sc, bf);
4829 	txq->axq_holdingbf = bf;
4850 ath_freebuf(struct ath_softc *sc, struct ath_buf *bf)
4854 	txq = &sc->sc_txq[bf->bf_state.bfs_tx_queue];
4856 	KASSERT((bf->bf_node == NULL), ("%s: bf->bf_node != NULL\n", __func__));
4857 	KASSERT((bf->bf_m == NULL), ("%s: bf->bf_m != NULL\n", __func__));
4862 	if (bf->bf_flags & ATH_BUF_BUSY) {
4864 		ath_txq_addholdingbuf(sc, bf);
4873 	ath_returnbuf_tail(sc, bf);
4884 ath_tx_freebuf(struct ath_softc *sc, struct ath_buf *bf, int status)
4886 	struct ieee80211_node *ni = bf->bf_node;
4887 	struct mbuf *m0 = bf->bf_m;
4894 	if (bf->bf_m != NULL) {
4895 		bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap,
4897 		bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);
4900 	bf->bf_node = NULL;
4901 	bf->bf_m = NULL;
4904 	ath_freebuf(sc, bf);
4913 	struct ath_buf *bf;
4921 	bf = TAILQ_FIRST(&txq->fifo.axq_q);
4922 	if (bf != NULL) {
4927 		if (bf->bf_flags & ATH_BUF_FIFOEND) {
4937 		ATH_TXQ_REMOVE(&txq->fifo, bf, bf_list);
4938 		return (bf);
4956 	bf = TAILQ_FIRST(&txq->axq_q);
4957 	if (bf == NULL) {
4961 	ATH_TXQ_REMOVE(txq, bf, bf_list);
4962 	return (bf);
4971 	struct ath_buf *bf;
4980 		bf = ath_tx_draintxq_get_one(sc, txq);
4981 		if (bf == NULL) {
4985 		if (bf->bf_state.bfs_aggr)
5000 				    bf->bf_lastds,
5001 				    &bf->bf_status.ds_txstat) == HAL_OK);
5003 			ath_printtxbuf(sc, bf, txq->axq_qnum, ix, status);
5004 			ieee80211_dump_pkt(ic, mtod(bf->bf_m, const uint8_t *),
5005 			    bf->bf_m->m_len, 0, -1);
5018 		bf->bf_flags &= ~ATH_BUF_BUSY;
5019 		if (bf->bf_comp)
5020 			bf->bf_comp(sc, bf, 1);
5022 			ath_tx_default_comp(sc, bf, 1);
5108 	struct ath_buf *bf;
5116 	TAILQ_FOREACH(bf, &txq->axq_q, bf_list) {
5117 		ath_printtxbuf(sc, bf, txq->axq_qnum, i,
5118 			ath_hal_txprocdesc(ah, bf->bf_lastds,
5119 			    &bf->bf_status.ds_txstat) == HAL_OK);
5182 		struct ath_buf *bf = TAILQ_FIRST(&sc->sc_bbuf);
5183 		if (bf != NULL && bf->bf_m != NULL) {
5184 			ath_printtxbuf(sc, bf, sc->sc_bhalq, 0,
5185 				ath_hal_txprocdesc(ah, bf->bf_lastds,
5186 				    &bf->bf_status.ds_txstat) == HAL_OK);
5188 			    mtod(bf->bf_m, const uint8_t *), bf->bf_m->m_len,