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if_bridge: add ALTQ support

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Similar to the recent addition of ALTQ support to if_vlan.

Reviewed by:	donner
Obtained from:	pfsense
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D31675
This commit is contained in:
Luiz Otavio O Souza 2021-08-25 11:07:44 +02:00 committed by Kristof Provost
parent cd46399b9c
commit eb680a63de
1 changed files with 47 additions and 0 deletions
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47
sys/net/if_bridge.c
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@ -298,6 +298,10 @@ static void bridge_init(void *);
static void bridge_dummynet(struct mbuf *, struct ifnet *);
static void bridge_stop(struct ifnet *, int);
static int bridge_transmit(struct ifnet *, struct mbuf *);
#ifdef ALTQ
static void bridge_altq_start(if_t);
static int bridge_altq_transmit(if_t, struct mbuf *);
#endif
static void bridge_qflush(struct ifnet *);
static struct mbuf *bridge_input(struct ifnet *, struct mbuf *);
static int bridge_output(struct ifnet *, struct mbuf *, struct sockaddr *,
@ -726,7 +730,15 @@ bridge_clone_create(struct if_clone *ifc, int unit, caddr_t params)
if_initname(ifp, bridge_name, unit);
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = bridge_ioctl;
#ifdef ALTQ
ifp->if_start = bridge_altq_start;
ifp->if_transmit = bridge_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 = bridge_transmit;
#endif
ifp->if_qflush = bridge_qflush;
ifp->if_init = bridge_init;
ifp->if_type = IFT_BRIDGE;
@ -798,6 +810,9 @@ bridge_clone_destroy(struct ifnet *ifp)
BRIDGE_LIST_UNLOCK();
bstp_detach(&sc->sc_stp);
#ifdef ALTQ
IFQ_PURGE(&ifp->if_snd);
#endif
NET_EPOCH_EXIT(et);
ether_ifdetach(ifp);
@ -2219,6 +2234,38 @@ bridge_transmit(struct ifnet *ifp, struct mbuf *m)
return (error);
}
#ifdef ALTQ
static void
bridge_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) {
bridge_transmit(ifp, m);
IFQ_DEQUEUE_NOLOCK(ifq, m);
}
IFQ_UNLOCK(ifq);
}
static int
bridge_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)
bridge_altq_start(ifp);
} else
err = bridge_transmit(ifp, m);
return (err);
}
#endif /* ALTQ */
/*
* The ifp->if_qflush entry point for if_bridge(4) is no-op.
*/