diff options
Diffstat (limited to 'share/man/man9/altq.9')
| -rw-r--r-- | share/man/man9/altq.9 | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/share/man/man9/altq.9 b/share/man/man9/altq.9 index 98cf53ca9b4..94bdb740cc7 100644 --- a/share/man/man9/altq.9 +++ b/share/man/man9/altq.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: altq.9,v 1.9 2002/12/02 15:05:23 mickey Exp $ +.\" $OpenBSD: altq.9,v 1.10 2003/04/14 18:11:32 tedu Exp $ .\" .\" Copyright (C) 2001 .\" Sony Computer Science Laboratories Inc. All rights reserved. @@ -36,7 +36,7 @@ .Fd #include <sys/socket.h> .Fd #include <net/if.h> .Ft void \"macro -.Fn IFQ_ENQUEUE "struct ifaltq *ifq" "struct mbuf *m" "int error" +.Fn IFQ_ENQUEUE "struct ifaltq *ifq" "struct mbuf *m" "struct altq_pktattr *pa" "int err" .Ft void \"macro .Fn IFQ_DEQUEUE "struct ifaltq *ifq" "struct mbuf *m" .Ft void \"macro @@ -205,28 +205,33 @@ macros looks like: #endif .Ed .Ss Enqueue operation -The semantics of the enqueue operation is changed. +The semantics of the enqueue operation are changed. In the new style, enqueue and packet drop are combined since they cannot be easily separated in many queuing disciplines. The new enqueue operation corresponds to the following macro that is written with the old macros. .Bd -literal -#define IFQ_ENQUEUE(ifq, m, error) \e -do { \e - if (IF_QFULL((ifq))) { \e - m_freem((m)); \e - (error) = ENOBUFS; \e - IF_DROP(ifq); \e - } else { \e - IF_ENQUEUE((ifq), (m)); \e - (error) = 0; \e - } \e +#define IFQ_ENQUEUE(ifq, m, pattr, err) \e +do { \e + if (ALTQ_IS_ENABLED((ifq))) \e + ALTQ_ENQUEUE((ifq), (m), (pattr), (err)); \e + else { \e + if (IF_QFULL((ifq))) { \e + m_freem((m)); \e + (err) = ENOBUFS; \e + } else { \e + IF_ENQUEUE((ifq), (m)); \e + (err) = 0; \e + } \e + } \e + if ((err)) \e + (ifq)->ifq_drops++; \e } while (0) .Ed .Pp .Fn IFQ_ENQUEUE -does the followings: +does the following: .Bl -hyphen -compact .It queue a packet @@ -234,7 +239,7 @@ queue a packet drop (and free) a packet if the enqueue operation fails .El If the enqueue operation fails, -.Fa error +.Fa err is set to .Dv ENOBUFS . .Fa mbuf @@ -265,7 +270,7 @@ looks as follows: | len = m->m_pkthdr.len; s = splimp(); | s = splimp(); if (IF_QFULL(&ifp->if_snd)) { | IFQ_ENQUEUE(&ifp->if_snd, m, - | error); + | NULL, error); IF_DROP(&ifp->if_snd); | if (error != 0) { splx(s); | splx(s); senderr(ENOBUFS); | return (error); @@ -545,7 +550,7 @@ The enqueue operation looks like: IF_ENQUEUE(ifq, m); | } | } else | IFQ_ENQUEUE(&sc->sc_if.if_snd, - | m, error); + | NULL, m, error); | | if (error) { | splx(s); @@ -581,8 +586,8 @@ Queuing disciplines also need to guarantee the same mbuf is returned if is called immediately after .Fn IFQ_POLL . .Sh SEE ALSO -.Xr pfctl 8 , -.Xr pf.conf 5 +.Xr pf.conf 5 , +.Xr pfctl 8 .Sh HISTORY The .Nm |