diff options
| -rw-r--r-- | sys/dev/fxp/if_fxp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/dev/fxp/if_fxp.c b/sys/dev/fxp/if_fxp.c index 59f80a84cc73..80f0bac755ba 100644 --- a/sys/dev/fxp/if_fxp.c +++ b/sys/dev/fxp/if_fxp.c @@ -1733,7 +1733,17 @@ fxp_intr_body(struct fxp_softc *sc, struct ifnet *ifp, u_int8_t statack, m->m_pkthdr.len = m->m_len = total_len; m->m_pkthdr.rcvif = ifp; + /* + * Drop locks before calling if_input() since it + * may re-enter fxp_start() in the netisr case. + * This would result in a lock reversal. Better + * performance might be obtained by chaining all + * packets received, dropping the lock, and then + * calling if_input() on each one. + */ + FXP_UNLOCK(sc); (*ifp->if_input)(ifp, m); + FXP_LOCK(sc); } } if (rnr) { |