dev/nfe/if_nfe.c

1104 nfe_alloc_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring)
1112 		desc = ring->desc64;
1115 		desc = ring->desc32;
1119 	ring->cur = ring->next = 0;
1130 	    &ring->rx_desc_tag);
1137 	error = bus_dmamem_alloc(ring->rx_desc_tag, &desc, BUS_DMA_WAITOK |
1138 	    BUS_DMA_COHERENT | BUS_DMA_ZERO, &ring->rx_desc_map);
1144 		ring->desc64 = desc;
1146 		ring->desc32 = desc;
1150 	error = bus_dmamap_load(ring->rx_desc_tag, ring->rx_desc_map, desc,
1156 	ring->physaddr = ctx.nfe_busaddr;
1167 	    &ring->rx_data_tag);
1173 	error = bus_dmamap_create(ring->rx_data_tag, 0, &ring->rx_spare_map);
1181 	 * Pre-allocate Rx buffers and populate Rx ring.
1187 		error = bus_dmamap_create(ring->rx_data_tag, 0,
1202 nfe_alloc_jrx_ring(struct nfe_softc *sc, struct nfe_jrx_ring *ring)
1218 		desc = ring->jdesc64;
1221 		desc = ring->jdesc32;
1225 	ring->jcur = ring->jnext = 0;
1227 	/* Create DMA tag for jumbo Rx ring. */
1238 	    &ring->jrx_desc_tag);
1241 		    "could not create jumbo ring DMA tag\n");
1256 	    &ring->jrx_data_tag);
1263 	/* Allocate DMA'able memory and load the DMA map for jumbo Rx ring. */
1264 	error = bus_dmamem_alloc(ring->jrx_desc_tag, &desc, BUS_DMA_WAITOK |
1265 	    BUS_DMA_COHERENT | BUS_DMA_ZERO, &ring->jrx_desc_map);
1268 		    "could not allocate DMA'able memory for jumbo Rx ring\n");
1272 		ring->jdesc64 = desc;
1274 		ring->jdesc32 = desc;
1277 	error = bus_dmamap_load(ring->jrx_desc_tag, ring->jrx_desc_map, desc,
1281 		    "could not load DMA'able memory for jumbo Rx ring\n");
1284 	ring->jphysaddr = ctx.nfe_busaddr;
1287 	error = bus_dmamap_create(ring->jrx_data_tag, 0, &ring->jrx_spare_map);
1298 		error = bus_dmamap_create(ring->jrx_data_tag, 0,
1314 	nfe_free_jrx_ring(sc, ring);
1322 nfe_init_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring)
1328 	ring->cur = ring->next = 0;
1330 		desc = ring->desc64;
1333 		desc = ring->desc32;
1342 	bus_dmamap_sync(ring->rx_desc_tag, ring->rx_desc_map,
1350 nfe_init_jrx_ring(struct nfe_softc *sc, struct nfe_jrx_ring *ring)
1356 	ring->jcur = ring->jnext = 0;
1358 		desc = ring->jdesc64;
1361 		desc = ring->jdesc32;
1370 	bus_dmamap_sync(ring->jrx_desc_tag, ring->jrx_desc_map,
1378 nfe_free_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring)
1385 		desc = ring->desc64;
1387 		desc = ring->desc32;
1390 		data = &ring->data[i];
1392 			bus_dmamap_destroy(ring->rx_data_tag,
1401 	if (ring->rx_data_tag != NULL) {
1402 		if (ring->rx_spare_map != NULL) {
1403 			bus_dmamap_destroy(ring->rx_data_tag,
1404 			    ring->rx_spare_map);
1405 			ring->rx_spare_map = NULL;
1407 		bus_dma_tag_destroy(ring->rx_data_tag);
1408 		ring->rx_data_tag = NULL;
1412 		bus_dmamap_unload(ring->rx_desc_tag, ring->rx_desc_map);
1413 		bus_dmamem_free(ring->rx_desc_tag, desc, ring->rx_desc_map);
1414 		ring->desc64 = NULL;
1415 		ring->desc32 = NULL;
1417 	if (ring->rx_desc_tag != NULL) {
1418 		bus_dma_tag_destroy(ring->rx_desc_tag);
1419 		ring->rx_desc_tag = NULL;
1425 nfe_free_jrx_ring(struct nfe_softc *sc, struct nfe_jrx_ring *ring)
1435 		desc = ring->jdesc64;
1438 		desc = ring->jdesc32;
1443 		data = &ring->jdata[i];
1445 			bus_dmamap_destroy(ring->jrx_data_tag,
1454 	if (ring->jrx_data_tag != NULL) {
1455 		if (ring->jrx_spare_map != NULL) {
1456 			bus_dmamap_destroy(ring->jrx_data_tag,
1457 			    ring->jrx_spare_map);
1458 			ring->jrx_spare_map = NULL;
1460 		bus_dma_tag_destroy(ring->jrx_data_tag);
1461 		ring->jrx_data_tag = NULL;
1465 		bus_dmamap_unload(ring->jrx_desc_tag, ring->jrx_desc_map);
1466 		bus_dmamem_free(ring->jrx_desc_tag, desc, ring->jrx_desc_map);
1467 		ring->jdesc64 = NULL;
1468 		ring->jdesc32 = NULL;
1471 	if (ring->jrx_desc_tag != NULL) {
1472 		bus_dma_tag_destroy(ring->jrx_desc_tag);
1473 		ring->jrx_desc_tag = NULL;
1479 nfe_alloc_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring)
1487 		desc = ring->desc64;
1490 		desc = ring->desc32;
1494 	ring->queued = 0;
1495 	ring->cur = ring->next = 0;
1506 	    &ring->tx_desc_tag);
1512 	error = bus_dmamem_alloc(ring->tx_desc_tag, &desc, BUS_DMA_WAITOK |
1513 	    BUS_DMA_COHERENT | BUS_DMA_ZERO, &ring->tx_desc_map);
1519 		ring->desc64 = desc;
1521 		ring->desc32 = desc;
1524 	error = bus_dmamap_load(ring->tx_desc_tag, ring->tx_desc_map, desc,
1530 	ring->physaddr = ctx.nfe_busaddr;
1542 	    &ring->tx_data_tag);
1549 		error = bus_dmamap_create(ring->tx_data_tag, 0,
1550 		    &ring->data[i].tx_data_map);
1564 nfe_init_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring)
1570 	ring->queued = 0;
1571 	ring->cur = ring->next = 0;
1573 		desc = ring->desc64;
1576 		desc = ring->desc32;
1581 	bus_dmamap_sync(ring->tx_desc_tag, ring->tx_desc_map,
1587 nfe_free_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring)
1594 		desc = ring->desc64;
1597 		desc = ring->desc32;
1602 		data = &ring->data[i];
1605 			bus_dmamap_sync(ring->tx_data_tag, data->tx_data_map,
1607 			bus_dmamap_unload(ring->tx_data_tag, data->tx_data_map);
1612 			bus_dmamap_destroy(ring->tx_data_tag,
1618 	if (ring->tx_data_tag != NULL) {
1619 		bus_dma_tag_destroy(ring->tx_data_tag);
1620 		ring->tx_data_tag = NULL;
1624 		bus_dmamap_sync(ring->tx_desc_tag, ring->tx_desc_map,
1626 		bus_dmamap_unload(ring->tx_desc_tag, ring->tx_desc_map);
1627 		bus_dmamem_free(ring->tx_desc_tag, desc, ring->tx_desc_map);
1628 		ring->desc64 = NULL;
1629 		ring->desc32 = NULL;
1630 		bus_dma_tag_destroy(ring->tx_desc_tag);
1631 		ring->tx_desc_tag = NULL;
1924 	/* check Rx ring */
1929 	/* check Tx ring */