diff options
Diffstat (limited to 'sys/net/if.c')
| -rw-r--r-- | sys/net/if.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/sys/net/if.c b/sys/net/if.c index 272c773336c..84a5f0409a9 100644 --- a/sys/net/if.c +++ b/sys/net/if.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if.c,v 1.168 2008/01/05 19:08:19 henning Exp $ */ +/* $OpenBSD: if.c,v 1.169 2008/04/10 23:15:45 dlg Exp $ */ /* $NetBSD: if.c,v 1.35 1996/05/07 05:26:04 thorpej Exp $ */ /* @@ -174,6 +174,7 @@ int if_indexlim = 0; struct ifaddr **ifnet_addrs = NULL; struct ifnet **ifindex2ifnet = NULL; struct ifnet_head ifnet; +struct ifnet_head iftxlist = TAILQ_HEAD_INITIALIZER(iftxlist); struct ifnet *lo0ifp; /* @@ -459,6 +460,40 @@ if_attach(struct ifnet *ifp) if_attachsetup(ifp); } +void +if_start(struct ifnet *ifp) +{ + if (IF_QFULL(&ifp->if_snd) && !ISSET(ifp->if_flags, IFF_OACTIVE)) { + if (ISSET(ifp->if_xflags, IFXF_TXREADY)) { + TAILQ_REMOVE(&iftxlist, ifp, if_txlist); + CLR(ifp->if_xflags, IFXF_TXREADY); + } + ifp->if_start(ifp); + return; + } + + if (!ISSET(ifp->if_xflags, IFXF_TXREADY)) { + SET(ifp->if_xflags, IFXF_TXREADY); + TAILQ_INSERT_TAIL(&iftxlist, ifp, if_txlist); + schednetisr(NETISR_TX); + } +} + +void +nettxintr(void) +{ + struct ifnet *ifp; + int s; + + s = splnet(); + while ((ifp = TAILQ_FIRST(&iftxlist)) != NULL) { + TAILQ_REMOVE(&iftxlist, ifp, if_txlist); + CLR(ifp->if_xflags, IFXF_TXREADY); + ifp->if_start(ifp); + } + splx(s); +} + /* * Detach an interface from everything in the kernel. Also deallocate * private resources. @@ -559,6 +594,8 @@ do { \ /* Remove the interface from the list of all interfaces. */ TAILQ_REMOVE(&ifnet, ifp, if_list); + if (ISSET(ifp->if_xflags, IFXF_TXREADY)) + TAILQ_REMOVE(&iftxlist, ifp, if_txlist); /* * Deallocate private resources. |