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Differential D37814 Diff 117206 sys/dev/netmap/if_re_netmap.h

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sys/dev/netmap/if_re_netmap.h

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/* /*
* Register/unregister. We are already under netmap lock. * Register/unregister. We are already under netmap lock.
*/ */
static int static int
re_netmap_reg(struct netmap_adapter *na, int onoff) re_netmap_reg(struct netmap_adapter *na, int onoff)
{ {
struct ifnet *ifp = na->ifp; if_t ifp = na->ifp;
struct rl_softc *adapter = ifp->if_softc; struct rl_softc *adapter = if_getsoftc(ifp);
RL_LOCK(adapter); RL_LOCK(adapter);
re_stop(adapter); /* also clears IFF_DRV_RUNNING */ re_stop(adapter); /* also clears IFF_DRV_RUNNING */
if (onoff) { if (onoff) {
nm_set_native_flags(na); nm_set_native_flags(na);
} else { } else {
nm_clear_native_flags(na); nm_clear_native_flags(na);
} }
re_init_locked(adapter); /* also enables intr */ re_init_locked(adapter); /* also enables intr */
RL_UNLOCK(adapter); RL_UNLOCK(adapter);
return (ifp->if_drv_flags & IFF_DRV_RUNNING ? 0 : 1); return (if_getdrvflags(ifp) & IFF_DRV_RUNNING ? 0 : 1);
} }
/* /*
* Reconcile kernel and user view of the transmit ring. * Reconcile kernel and user view of the transmit ring.
*/ */
static int static int
re_netmap_txsync(struct netmap_kring *kring, int flags) re_netmap_txsync(struct netmap_kring *kring, int flags)
{ {
struct netmap_adapter *na = kring->na; struct netmap_adapter *na = kring->na;
struct ifnet *ifp = na->ifp; if_t ifp = na->ifp;
struct netmap_ring *ring = kring->ring; struct netmap_ring *ring = kring->ring;
u_int nm_i; /* index into the netmap ring */ u_int nm_i; /* index into the netmap ring */
u_int nic_i; /* index into the NIC ring */ u_int nic_i; /* index into the NIC ring */
u_int n; u_int n;
u_int const lim = kring->nkr_num_slots - 1; u_int const lim = kring->nkr_num_slots - 1;
u_int const head = kring->rhead; u_int const head = kring->rhead;
/* device-specific */ /* device-specific */
struct rl_softc *sc = ifp->if_softc; struct rl_softc *sc = if_getsoftc(ifp);
struct rl_txdesc *txd = sc->rl_ldata.rl_tx_desc; struct rl_txdesc *txd = sc->rl_ldata.rl_tx_desc;
bus_dmamap_sync(sc->rl_ldata.rl_tx_list_tag, bus_dmamap_sync(sc->rl_ldata.rl_tx_list_tag,
sc->rl_ldata.rl_tx_list_map, sc->rl_ldata.rl_tx_list_map,
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); // XXX extra postwrite ? BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); // XXX extra postwrite ?
/* /*
* First part: process new packets to send. * First part: process new packets to send.
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/* /*
* Reconcile kernel and user view of the receive ring. * Reconcile kernel and user view of the receive ring.
*/ */
static int static int
re_netmap_rxsync(struct netmap_kring *kring, int flags) re_netmap_rxsync(struct netmap_kring *kring, int flags)
{ {
struct netmap_adapter *na = kring->na; struct netmap_adapter *na = kring->na;
struct ifnet *ifp = na->ifp; if_t ifp = na->ifp;
struct netmap_ring *ring = kring->ring; struct netmap_ring *ring = kring->ring;
u_int nm_i; /* index into the netmap ring */ u_int nm_i; /* index into the netmap ring */
u_int nic_i; /* index into the NIC ring */ u_int nic_i; /* index into the NIC ring */
u_int const lim = kring->nkr_num_slots - 1; u_int const lim = kring->nkr_num_slots - 1;
u_int const head = kring->rhead; u_int const head = kring->rhead;
int force_update = (flags & NAF_FORCE_READ) || kring->nr_kflags & NKR_PENDINTR; int force_update = (flags & NAF_FORCE_READ) || kring->nr_kflags & NKR_PENDINTR;
/* device-specific */ /* device-specific */
struct rl_softc *sc = ifp->if_softc; struct rl_softc *sc = if_getsoftc(ifp);
struct rl_rxdesc *rxd = sc->rl_ldata.rl_rx_desc; struct rl_rxdesc *rxd = sc->rl_ldata.rl_rx_desc;
if (head > lim) if (head > lim)
return netmap_ring_reinit(kring); return netmap_ring_reinit(kring);
bus_dmamap_sync(sc->rl_ldata.rl_rx_list_tag, bus_dmamap_sync(sc->rl_ldata.rl_rx_list_tag,
sc->rl_ldata.rl_rx_list_map, sc->rl_ldata.rl_rx_list_map,
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
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