184 	struct cas_txsoft *txs;  in cas_attach()  local
280 		txs = &sc->sc_txsoft[i];  in cas_attach()
281 		txs->txs_mbuf = NULL;  in cas_attach()
282 		txs->txs_ndescs = 0;  in cas_attach()
284 		    &txs->txs_dmamap)) != 0) {  in cas_attach()
290 		STAILQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q);  in cas_attach()
713 	struct cas_txsoft *txs;  in cas_stop()  local
731 	while ((txs = STAILQ_FIRST(&sc->sc_txdirtyq)) != NULL) {  in cas_stop()
733 		if (txs->txs_ndescs != 0) {  in cas_stop()
734 			bus_dmamap_sync(sc->sc_tdmatag, txs->txs_dmamap,  in cas_stop()
736 			bus_dmamap_unload(sc->sc_tdmatag, txs->txs_dmamap);  in cas_stop()
737 			if (txs->txs_mbuf != NULL) {  in cas_stop()
738 				m_freem(txs->txs_mbuf);  in cas_stop()
739 				txs->txs_mbuf = NULL;  in cas_stop()
742 		STAILQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q);  in cas_stop()
1176 	struct cas_txsoft *txs;  in cas_load_txmbuf()  local
1185 	if ((txs = STAILQ_FIRST(&sc->sc_txfreeq)) == NULL) {  in cas_load_txmbuf()
1213 	error = bus_dmamap_load_mbuf_sg(sc->sc_tdmatag, txs->txs_dmamap,  in cas_load_txmbuf()
1224 		    txs->txs_dmamap, *m_head, txsegs, &nsegs,  in cas_load_txmbuf()
1249 		txs->txs_ndescs = 0;  in cas_load_txmbuf()
1250 		bus_dmamap_unload(sc->sc_tdmatag, txs->txs_dmamap);  in cas_load_txmbuf()
1254 	txs->txs_ndescs = nsegs;  in cas_load_txmbuf()
1255 	txs->txs_firstdesc = sc->sc_txnext;  in cas_load_txmbuf()
1256 	nexttx = txs->txs_firstdesc;  in cas_load_txmbuf()
1271 		txs->txs_lastdesc = nexttx;  in cas_load_txmbuf()
1279 	sc->sc_txdescs[txs->txs_lastdesc].cd_flags |=  in cas_load_txmbuf()
1289 		sc->sc_txdescs[txs->txs_firstdesc].cd_flags |=  in cas_load_txmbuf()
1292 		sc->sc_txdescs[txs->txs_firstdesc].cd_flags |=  in cas_load_txmbuf()
1296 	bus_dmamap_sync(sc->sc_tdmatag, txs->txs_dmamap,  in cas_load_txmbuf()
1301 	    __func__, txs->txs_firstdesc, txs->txs_lastdesc,  in cas_load_txmbuf()
1302 	    txs->txs_ndescs);  in cas_load_txmbuf()
1305 	STAILQ_INSERT_TAIL(&sc->sc_txdirtyq, txs, txs_q);  in cas_load_txmbuf()
1306 	txs->txs_mbuf = *m_head;  in cas_load_txmbuf()
1308 	sc->sc_txnext = CAS_NEXTTX(txs->txs_lastdesc);  in cas_load_txmbuf()
1309 	sc->sc_txfree -= txs->txs_ndescs;  in cas_load_txmbuf()
1493 	struct cas_txsoft *txs;  in cas_tint()  local
1510 	while ((txs = STAILQ_FIRST(&sc->sc_txdirtyq)) != NULL) {  in cas_tint()
1513 			printf("    txsoft %p transmit chain:\n", txs);  in cas_tint()
1514 			for (i = txs->txs_firstdesc;; i = CAS_NEXTTX(i)) {  in cas_tint()
1522 				if (i == txs->txs_lastdesc)  in cas_tint()
1537 		CTR4(KTR_CAS, "%s: txs->txs_firstdesc = %d, "  in cas_tint()
1538 		    "txs->txs_lastdesc = %d, txlast = %d",  in cas_tint()
1539 		    __func__, txs->txs_firstdesc, txs->txs_lastdesc, txlast);  in cas_tint()
1541 		if (txs->txs_firstdesc <= txs->txs_lastdesc) {  in cas_tint()
1542 			if ((txlast >= txs->txs_firstdesc) &&  in cas_tint()
1543 			    (txlast <= txs->txs_lastdesc))  in cas_tint()
1547 			if ((txlast >= txs->txs_firstdesc) ||  in cas_tint()
1548 			    (txlast <= txs->txs_lastdesc))  in cas_tint()
1557 		sc->sc_txfree += txs->txs_ndescs;  in cas_tint()
1559 		bus_dmamap_sync(sc->sc_tdmatag, txs->txs_dmamap,  in cas_tint()
1561 		bus_dmamap_unload(sc->sc_tdmatag, txs->txs_dmamap);  in cas_tint()
1562 		if (txs->txs_mbuf != NULL) {  in cas_tint()
1563 			m_freem(txs->txs_mbuf);  in cas_tint()
1564 			txs->txs_mbuf = NULL;  in cas_tint()
1567 		STAILQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q);  in cas_tint()