diff options
| -rw-r--r-- | sys/dev/mxge/if_mxge.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/sys/dev/mxge/if_mxge.c b/sys/dev/mxge/if_mxge.c index d0458f2..eb5f89a 100644 --- a/sys/dev/mxge/if_mxge.c +++ b/sys/dev/mxge/if_mxge.c @@ -1277,32 +1277,30 @@ drop: } -static void + + +static inline void mxge_start_locked(mxge_softc_t *sc) { - int avail; struct mbuf *m; struct ifnet *ifp; - ifp = sc->ifp; - while (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) { - /* dequeue the packet */ + while ((sc->tx.mask - (sc->tx.req - sc->tx.done)) + > MXGE_MAX_SEND_DESC) { + IFQ_DRV_DEQUEUE(&ifp->if_snd, m); - + if (m == NULL) { + return; + } /* let BPF see it */ BPF_MTAP(ifp, m); /* give it to the nic */ mxge_encap(sc, m); - - /* leave an extra slot keep the ring from wrapping */ - avail = sc->tx.mask - (sc->tx.req - sc->tx.done); - if (avail < MXGE_MAX_SEND_DESC) { - sc->ifp->if_drv_flags |= IFF_DRV_OACTIVE; - return; - } } + /* ran out of transmit slots */ + sc->ifp->if_drv_flags |= IFF_DRV_OACTIVE; } static void |
