135 	struct ldc_conn *lc;  in vldcp_attach()  local
160 	lc = &sc->sc_lc;  in vldcp_attach()
161 	lc->lc_id = ca->ca_id;  in vldcp_attach()
162 	lc->lc_sc = sc;  in vldcp_attach()
164 	lc->lc_txq = ldc_queue_alloc(sc->sc_dmatag, VLDCP_TX_ENTRIES);  in vldcp_attach()
165 	if (lc->lc_txq == NULL) {  in vldcp_attach()
170 	lc->lc_rxq = ldc_queue_alloc(sc->sc_dmatag, VLDCP_RX_ENTRIES);  in vldcp_attach()
171 	if (lc->lc_rxq == NULL) {  in vldcp_attach()
175 	lc->lc_rx_state = LDC_CHANNEL_INIT;  in vldcp_attach()
196 	ldc_queue_free(sc->sc_dmatag, lc->lc_rxq);  in vldcp_attach()
199 	ldc_queue_free(sc->sc_dmatag, lc->lc_txq);  in vldcp_attach()
206 	struct ldc_conn *lc = &sc->sc_lc;  in vldcp_tx_intr()  local
210 	err = hv_ldc_tx_get_state(lc->lc_id, &tx_head, &tx_tail, &tx_state);  in vldcp_tx_intr()
216 	if (tx_state != lc->lc_tx_state) {  in vldcp_tx_intr()
228 		lc->lc_tx_state = tx_state;  in vldcp_tx_intr()
233 	wakeup(lc->lc_txq);  in vldcp_tx_intr()
241 	struct ldc_conn *lc = &sc->sc_lc;  in vldcp_rx_intr()  local
245 	err = hv_ldc_rx_get_state(lc->lc_id, &rx_head, &rx_tail, &rx_state);  in vldcp_rx_intr()
251 	if (rx_state != lc->lc_rx_state) {  in vldcp_rx_intr()
259 			err = hv_ldc_rx_set_qhead(lc->lc_id, rx_tail);  in vldcp_rx_intr()
273 			err = hv_ldc_rx_set_qhead(lc->lc_id, rx_tail);  in vldcp_rx_intr()
279 		lc->lc_rx_state = rx_state;  in vldcp_rx_intr()
283 		wakeup(lc->lc_rxq);  in vldcp_rx_intr()
292 	wakeup(lc->lc_rxq);  in vldcp_rx_intr()
317 	struct ldc_conn *lc;  in vldcpopen()  local
324 	lc = &sc->sc_lc;  in vldcpopen()
326 	err = hv_ldc_tx_qconf(lc->lc_id,  in vldcpopen()
327 	    lc->lc_txq->lq_map->dm_segs[0].ds_addr, lc->lc_txq->lq_nentries);  in vldcpopen()
331 	err = hv_ldc_rx_qconf(lc->lc_id,  in vldcpopen()
332 	    lc->lc_rxq->lq_map->dm_segs[0].ds_addr, lc->lc_rxq->lq_nentries);  in vldcpopen()
337 	err = hv_ldc_rx_get_state(lc->lc_id, &rx_head, &rx_tail, &rx_state);  in vldcpopen()
368 	struct ldc_conn *lc;  in vldcpread()  local
376 	lc = &sc->sc_lc;  in vldcpread()
385 	err = hv_ldc_rx_get_state(lc->lc_id, &rx_head, &rx_tail, &rx_state);  in vldcpread()
404 		ret = tsleep_nsec(lc->lc_rxq, PWAIT | PCATCH, "hvrd", INFSLP);  in vldcpread()
413 	ret = uiomove(lc->lc_rxq->lq_va + rx_head, 64, uio);  in vldcpread()
416 	rx_head &= ((lc->lc_rxq->lq_nentries * 64) - 1);  in vldcpread()
417 	err = hv_ldc_rx_set_qhead(lc->lc_id, rx_head);  in vldcpread()
430 	struct ldc_conn *lc;  in vldcpwrite()  local
439 	lc = &sc->sc_lc;  in vldcpwrite()
448 	err = hv_ldc_tx_get_state(lc->lc_id, &tx_head, &tx_tail, &tx_state);  in vldcpwrite()
465 	next_tx_tail &= ((lc->lc_txq->lq_nentries * 64) - 1);  in vldcpwrite()
470 		ret = tsleep_nsec(lc->lc_txq, PWAIT | PCATCH, "hvwr", INFSLP);  in vldcpwrite()
480 	ret = uiomove(lc->lc_txq->lq_va + tx_tail, 64, uio);  in vldcpwrite()
482 	err = hv_ldc_tx_set_qtail(lc->lc_id, next_tx_tail);  in vldcpwrite()
497 	struct ldc_conn *lc;  in vldcpioctl()  local
508 	lc = &sc->sc_lc;  in vldcpioctl()
528 			err = hv_ldc_copy(lc->lc_id, LDC_COPY_IN,  in vldcpioctl()
558 			err = hv_ldc_copy(lc->lc_id, LDC_COPY_OUT,  in vldcpioctl()
605 	struct ldc_conn *lc = &sc->sc_lc;  in filt_vldcpread()  local
610 	err = hv_ldc_rx_get_state(lc->lc_id, &head, &tail, &state);  in filt_vldcpread()
613 		    lc->lc_rxq->lq_nentries;  in filt_vldcpread()
614 		avail %= lc->lc_rxq->lq_nentries;  in filt_vldcpread()
630 	struct ldc_conn *lc = &sc->sc_lc;  in filt_vldcwrite()  local
635 	err = hv_ldc_tx_get_state(lc->lc_id, &head, &tail, &state);  in filt_vldcwrite()
638 		    lc->lc_txq->lq_nentries - 1;  in filt_vldcwrite()
639 		avail %= lc->lc_txq->lq_nentries;  in filt_vldcwrite()