static int
priq_addq(struct priq_class *cl, struct mbuf *m)
{
#ifdef ALTQ_RIO
if (q_is_rio(cl->cl_q))
return rio_addq((rio_t *)cl->cl_red, cl->cl_q, m,
cl->cl_pktattr);
#endif
#ifdef ALTQ_RED
if (q_is_red(cl->cl_q))
return red_addq(cl->cl_red, cl->cl_q, m, cl->cl_pktattr);
#endif
if (qlen(cl->cl_q) >= qlimit(cl->cl_q)) {
m_freem(m);
return (-1);
}
if (cl->cl_flags & PRCF_CLEARDSCP)
write_dsfield(m, cl->cl_pktattr, 0);
_addq(cl->cl_q, m);
return (0);
}
static inline int
fairq_addq(struct fairq_class *cl, struct mbuf *m, struct pf_mtag *t)
{
struct ifclassq *ifq = cl->cl_fif->fif_ifq;
fairq_bucket_t *b;
u_int32_t hash = m->m_pkthdr.pkt_flowid;
u_int32_t hindex;
u_int64_t bw;
IFCQ_LOCK_ASSERT_HELD(ifq);
/*
* If the packet doesn't have any keep state put it on the end of
* our queue. XXX this can result in out of order delivery.
*/
if (hash == 0) {
if (cl->cl_head)
b = cl->cl_head->prev;
else
b = &cl->cl_buckets[0];
} else {
hindex = (hash & cl->cl_nbucket_mask);
b = &cl->cl_buckets[hindex];
}
/*
* Add the bucket to the end of the circular list of active buckets.
*
* As a special case we add the bucket to the beginning of the list
* instead of the end if it was not previously on the list and if
* its traffic is less then the hog level.
*/
if (b->in_use == 0) {
b->in_use = 1;
if (cl->cl_head == NULL) {
cl->cl_head = b;
b->next = b;
b->prev = b;
} else {
b->next = cl->cl_head;
b->prev = cl->cl_head->prev;
b->prev->next = b;
b->next->prev = b;
if (b->bw_delta && cl->cl_hogs_m1) {
bw = b->bw_bytes * machclk_freq / b->bw_delta;
if (bw < cl->cl_hogs_m1)
cl->cl_head = b;
}
}
}
#if CLASSQ_RIO
if (cl->cl_qtype == Q_RIO)
return (rio_addq(cl->cl_rio, &b->queue, m, t));
else
#endif /* CLASSQ_RIO */
#if CLASSQ_RED
if (cl->cl_qtype == Q_RED)
return (red_addq(cl->cl_red, &b->queue, m, t));
else
#endif /* CLASSQ_RED */
#if CLASSQ_BLUE
if (cl->cl_qtype == Q_BLUE)
return (blue_addq(cl->cl_blue, &b->queue, m, t));
else
#endif /* CLASSQ_BLUE */
if (cl->cl_qtype == Q_SFB) {
if (cl->cl_sfb == NULL) {
struct ifnet *ifp = FAIRQIF_IFP(cl->cl_fif);
VERIFY(cl->cl_flags & FARF_LAZY);
IFCQ_CONVERT_LOCK(ifq);
cl->cl_sfb = sfb_alloc(ifp, cl->cl_handle,
cl->cl_qlimit, cl->cl_qflags);
if (cl->cl_sfb == NULL) {
/* fall back to droptail */
cl->cl_qtype = Q_DROPTAIL;
cl->cl_flags &= ~FARF_SFB;
cl->cl_qflags &= ~(SFBF_ECN | SFBF_FLOWCTL);
log(LOG_ERR, "%s: %s SFB lazy allocation "
"failed for qid=%d pri=%d, falling back "
"to DROPTAIL\n", if_name(ifp),
fairq_style(cl->cl_fif), cl->cl_handle,
cl->cl_pri);
}
}
if (cl->cl_sfb != NULL)
return (sfb_addq(cl->cl_sfb, &b->queue, m, t));
} else if (qlen(&b->queue) >= qlimit(&b->queue)) {
IFCQ_CONVERT_LOCK(ifq);
m_freem(m);
return (CLASSQEQ_DROPPED);
}
#if PF_ECN
if (cl->cl_flags & FARF_CLEARDSCP)
write_dsfield(m, t, 0);
#endif /* PF_ECN */
_addq(&b->queue, m);
return (0);
}
static inline int
priq_addq(struct priq_class *cl, struct mbuf *m, struct pf_mtag *t)
{
struct priq_if *pif = cl->cl_pif;
struct ifclassq *ifq = pif->pif_ifq;
IFCQ_LOCK_ASSERT_HELD(ifq);
#if CLASSQ_RIO
if (q_is_rio(&cl->cl_q))
return (rio_addq(cl->cl_rio, &cl->cl_q, m, t));
else
#endif /* CLASSQ_RIO */
#if CLASSQ_RED
if (q_is_red(&cl->cl_q))
return (red_addq(cl->cl_red, &cl->cl_q, m, t));
else
#endif /* CLASSQ_RED */
#if CLASSQ_BLUE
if (q_is_blue(&cl->cl_q))
return (blue_addq(cl->cl_blue, &cl->cl_q, m, t));
else
#endif /* CLASSQ_BLUE */
if (q_is_sfb(&cl->cl_q)) {
if (cl->cl_sfb == NULL) {
struct ifnet *ifp = PRIQIF_IFP(pif);
VERIFY(cl->cl_flags & PRCF_LAZY);
cl->cl_flags &= ~PRCF_LAZY;
IFCQ_CONVERT_LOCK(ifq);
cl->cl_sfb = sfb_alloc(ifp, cl->cl_handle,
qlimit(&cl->cl_q), cl->cl_qflags);
if (cl->cl_sfb == NULL) {
/* fall back to droptail */
qtype(&cl->cl_q) = Q_DROPTAIL;
cl->cl_flags &= ~PRCF_SFB;
cl->cl_qflags &= ~(SFBF_ECN | SFBF_FLOWCTL);
log(LOG_ERR, "%s: %s SFB lazy allocation "
"failed for qid=%d pri=%d, falling back "
"to DROPTAIL\n", if_name(ifp),
priq_style(pif), cl->cl_handle,
cl->cl_pri);
} else if (pif->pif_throttle != IFNET_THROTTLE_OFF) {
/* if there's pending throttling, set it */
cqrq_throttle_t tr = { 1, pif->pif_throttle };
int err = priq_throttle(pif, &tr);
if (err == EALREADY)
err = 0;
if (err != 0) {
tr.level = IFNET_THROTTLE_OFF;
(void) priq_throttle(pif, &tr);
}
}
}
if (cl->cl_sfb != NULL)
return (sfb_addq(cl->cl_sfb, &cl->cl_q, m, t));
} else if (qlen(&cl->cl_q) >= qlimit(&cl->cl_q)) {
IFCQ_CONVERT_LOCK(ifq);
m_freem(m);
return (CLASSQEQ_DROPPED);
}
#if PF_ECN
if (cl->cl_flags & PRCF_CLEARDSCP)
write_dsfield(m, t, 0);
#endif /* PF_ECN */
_addq(&cl->cl_q, m);
return (0);
}
