dev/ral/rt2661.c

247 			    "could not allocate Tx ring %d\n", ac);
254 		device_printf(sc->sc_dev, "could not allocate Mgt ring\n");
260 		device_printf(sc->sc_dev, "could not allocate Rx ring\n");
465 rt2661_alloc_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring,
470 	ring->count = count;
471 	ring->queued = 0;
472 	ring->cur = ring->next = ring->stat = 0;
477 	    0, NULL, NULL, &ring->desc_dmat);
483 	error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
484 	    BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
490 	error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
491 	    count * RT2661_TX_DESC_SIZE, rt2661_dma_map_addr, &ring->physaddr,
498 	ring->data = malloc(count * sizeof (struct rt2661_tx_data), M_DEVBUF,
500 	if (ring->data == NULL) {
508 	    RT2661_MAX_SCATTER, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
515 		error = bus_dmamap_create(ring->data_dmat, 0,
516 		    &ring->data[i].map);
525 fail:	rt2661_free_tx_ring(sc, ring);
530 rt2661_reset_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring)
536 	for (i = 0; i < ring->count; i++) {
537 		desc = &ring->desc[i];
538 		data = &ring->data[i];
541 			bus_dmamap_sync(ring->data_dmat, data->map,
543 			bus_dmamap_unload(ring->data_dmat, data->map);
556 	bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
558 	ring->queued = 0;
559 	ring->cur = ring->next = ring->stat = 0;
563 rt2661_free_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring)
568 	if (ring->desc != NULL) {
569 		bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
571 		bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
572 		bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
575 	if (ring->desc_dmat != NULL)
576 		bus_dma_tag_destroy(ring->desc_dmat);
578 	if (ring->data != NULL) {
579 		for (i = 0; i < ring->count; i++) {
580 			data = &ring->data[i];
583 				bus_dmamap_sync(ring->data_dmat, data->map,
585 				bus_dmamap_unload(ring->data_dmat, data->map);
593 				bus_dmamap_destroy(ring->data_dmat, data->map);
596 		free(ring->data, M_DEVBUF);
599 	if (ring->data_dmat != NULL)
600 		bus_dma_tag_destroy(ring->data_dmat);
604 rt2661_alloc_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring,
612 	ring->count = count;
613 	ring->cur = ring->next = 0;
618 	    0, NULL, NULL, &ring->desc_dmat);
624 	error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
625 	    BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
631 	error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
632 	    count * RT2661_RX_DESC_SIZE, rt2661_dma_map_addr, &ring->physaddr,
639 	ring->data = malloc(count * sizeof (struct rt2661_rx_data), M_DEVBUF,
641 	if (ring->data == NULL) {
648 	 * Pre-allocate Rx buffers and populate Rx ring.
652 	    1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
662 		error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
676 		error = bus_dmamap_load(ring->data_dmat, data->map,
689 	bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
693 fail:	rt2661_free_rx_ring(sc, ring);
698 rt2661_reset_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring)
702 	for (i = 0; i < ring->count; i++)
703 		ring->desc[i].flags = htole32(RT2661_RX_BUSY);
705 	bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
707 	ring->cur = ring->next = 0;
711 rt2661_free_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring)
716 	if (ring->desc != NULL) {
717 		bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
719 		bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
720 		bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
723 	if (ring->desc_dmat != NULL)
724 		bus_dma_tag_destroy(ring->desc_dmat);
726 	if (ring->data != NULL) {
727 		for (i = 0; i < ring->count; i++) {
728 			data = &ring->data[i];
731 				bus_dmamap_sync(ring->data_dmat, data->map,
733 				bus_dmamap_unload(ring->data_dmat, data->map);
738 				bus_dmamap_destroy(ring->data_dmat, data->map);
741 		free(ring->data, M_DEVBUF);
744 	if (ring->data_dmat != NULL)
745 		bus_dma_tag_destroy(ring->data_dmat);
1000 		 * Try to allocate a new mbuf for this ring element and load it
1001 		 * before processing the current mbuf. If the ring element
1036 	 	 * New mbuf successfully loaded, update Rx ring and continue
1592 			/* there is no place left in this ring */
2022  * Update QoS (802.11e) settings for each h/w Tx ring.
2251 	/* initialize Mgt ring */
2254 	/* initialize Rx ring */
2266 	    RT2661_TX_RING_COUNT <<  8 |	/* XXX: HCCA ring unused */
2281 	/* load base address of Rx ring */