Date: Wed, 1 Sep 2021 13:28:29 GMT From: Kristof Provost <kp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 91282dac0d25 - stable/12 - if_vlan: add the ALTQ support to if_vlan. Message-ID: <202109011328.181DSTmg047491@gitrepo.freebsd.org>
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The branch stable/12 has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=91282dac0d2559712bdc0f3181085673e8d9eba9 commit 91282dac0d2559712bdc0f3181085673e8d9eba9 Author: Luiz Otavio O Souza <loos@FreeBSD.org> AuthorDate: 2021-08-21 09:41:03 +0000 Commit: Kristof Provost <kp@FreeBSD.org> CommitDate: 2021-09-01 07:38:02 +0000 if_vlan: add the ALTQ support to if_vlan. Inspired by the iflib implementation, allow ALTQ to be used with if_vlan interfaces. Reviewed by: donner Obtained from: pfsense MFC after: 1 week Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D31647 (cherry picked from commit 2e5ff01d0a1fabc757252f9c28ad5cddc98a652d) --- sys/net/if_vlan.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c index a055c978c32f..ae1e05e8bc93 100644 --- a/sys/net/if_vlan.c +++ b/sys/net/if_vlan.c @@ -291,6 +291,10 @@ static int vlan_setflag(struct ifnet *ifp, int flag, int status, static int vlan_setflags(struct ifnet *ifp, int status); static int vlan_setmulti(struct ifnet *ifp); static int vlan_transmit(struct ifnet *ifp, struct mbuf *m); +#ifdef ALTQ +static void vlan_altq_start(struct ifnet *ifp); +static int vlan_altq_transmit(struct ifnet *ifp, struct mbuf *m); +#endif static int vlan_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst, struct route *ro); static void vlan_unconfig(struct ifnet *ifp); @@ -1058,7 +1062,15 @@ vlan_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params) ifp->if_dunit = unit; ifp->if_init = vlan_init; +#ifdef ALTQ + ifp->if_start = vlan_altq_start; + ifp->if_transmit = vlan_altq_transmit; + IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); + ifp->if_snd.ifq_drv_maxlen = 0; + IFQ_SET_READY(&ifp->if_snd); +#else ifp->if_transmit = vlan_transmit; +#endif ifp->if_qflush = vlan_qflush; ifp->if_ioctl = vlan_ioctl; #ifdef RATELIMIT @@ -1102,6 +1114,10 @@ vlan_clone_destroy(struct if_clone *ifc, struct ifnet *ifp) struct ifvlan *ifv = ifp->if_softc; int unit = ifp->if_dunit; + +#ifdef ALTQ + IFQ_PURGE(&ifp->if_snd); +#endif ether_ifdetach(ifp); /* first, remove it from system-wide lists */ vlan_unconfig(ifp); /* now it can be unconfigured and freed */ /* @@ -1200,6 +1216,37 @@ vlan_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst, return p->if_output(ifp, m, dst, ro); } +#ifdef ALTQ +static void +vlan_altq_start(if_t ifp) +{ + struct ifaltq *ifq = &ifp->if_snd; + struct mbuf *m; + + IFQ_LOCK(ifq); + IFQ_DEQUEUE_NOLOCK(ifq, m); + while (m != NULL) { + vlan_transmit(ifp, m); + IFQ_DEQUEUE_NOLOCK(ifq, m); + } + IFQ_UNLOCK(ifq); +} + +static int +vlan_altq_transmit(if_t ifp, struct mbuf *m) +{ + int err; + + if (ALTQ_IS_ENABLED(&ifp->if_snd)) { + IFQ_ENQUEUE(&ifp->if_snd, m, err); + if (err == 0) + vlan_altq_start(ifp); + } else + err = vlan_transmit(ifp, m); + + return (err); +} +#endif /* ALTQ */ /* * The ifp->if_qflush entry point for vlan(4) is a no-op.
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