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Differential D23348 Diff 67363 sys/dev/rtwn/pci/rtwn_pci_rx.c

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sys/dev/rtwn/pci/rtwn_pci_rx.c

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#include <sys/kernel.h> #include <sys/kernel.h>
#include <sys/socket.h> #include <sys/socket.h>
#include <sys/systm.h> #include <sys/systm.h>
#include <sys/malloc.h> #include <sys/malloc.h>
#include <sys/queue.h> #include <sys/queue.h>
#include <sys/taskqueue.h> #include <sys/taskqueue.h>
#include <sys/bus.h> #include <sys/bus.h>
#include <sys/endian.h> #include <sys/endian.h>
#include <sys/epoch.h>
#include <machine/bus.h> #include <machine/bus.h>
#include <machine/resource.h> #include <machine/resource.h>
#include <sys/rman.h> #include <sys/rman.h>
#include <net/if.h> #include <net/if.h>
#include <net/ethernet.h> #include <net/ethernet.h>
#include <net/if_media.h> #include <net/if_media.h>
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static void static void
rtwn_pci_rx_done(struct rtwn_softc *sc) rtwn_pci_rx_done(struct rtwn_softc *sc)
{ {
struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc); struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
struct rtwn_rx_ring *ring = &pc->rx_ring; struct rtwn_rx_ring *ring = &pc->rx_ring;
struct rtwn_rx_stat_pci *rx_desc; struct rtwn_rx_stat_pci *rx_desc;
struct rtwn_rx_data *rx_data; struct rtwn_rx_data *rx_data;
struct epoch_tracker et;
int len; int len;
NET_EPOCH_ENTER(et);
bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_POSTREAD); bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_POSTREAD);
for (;;) { for (;;) {
rx_desc = &ring->desc[ring->cur]; rx_desc = &ring->desc[ring->cur];
rx_data = &ring->rx_data[ring->cur]; rx_data = &ring->rx_data[ring->cur];
if (le32toh(rx_desc->rxdw0) & RTWN_RXDW0_OWN) if (le32toh(rx_desc->rxdw0) & RTWN_RXDW0_OWN)
break; break;
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/* NB: device can reuse current descriptor. */ /* NB: device can reuse current descriptor. */
bus_dmamap_sync(ring->desc_dmat, ring->desc_map, bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
BUS_DMASYNC_POSTREAD); BUS_DMASYNC_POSTREAD);
if (le32toh(rx_desc->rxdw0) & RTWN_RXDW0_OWN) if (le32toh(rx_desc->rxdw0) & RTWN_RXDW0_OWN)
ring->cur = (ring->cur + 1) % RTWN_PCI_RX_LIST_COUNT; ring->cur = (ring->cur + 1) % RTWN_PCI_RX_LIST_COUNT;
} }
NET_EPOCH_EXIT(et);
} }
void void
rtwn_pci_intr(void *arg) rtwn_pci_intr(void *arg)
{ {
struct rtwn_softc *sc = arg; struct rtwn_softc *sc = arg;
struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc); struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
int i, status, tx_rings; int i, status, tx_rings;
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