diff options
author | Luiz Otavio O Souza <luiz@netgate.com> | 2015-11-11 09:12:21 -0600 |
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committer | Luiz Otavio O Souza <luiz@netgate.com> | 2015-11-11 09:12:21 -0600 |
commit | b24875947f184e461a05c24a653b99071580feef (patch) | |
tree | 37a5ba38e344e1f5b584cce9f0b7d22fa78c8000 /sys/contrib | |
parent | 53be5c5f6ada07c03bef4582a9634e682f026892 (diff) | |
download | FreeBSD-src-b24875947f184e461a05c24a653b99071580feef.zip FreeBSD-src-b24875947f184e461a05c24a653b99071580feef.tar.gz |
Revert "Importing pfSense patch fairq.RELENG_10.diff"
This reverts commit 570dae5561e54cd2703f546b04a3fa029c92dc62.
TAG: FAIRQ
Diffstat (limited to 'sys/contrib')
-rw-r--r-- | sys/contrib/altq/altq/altq.h | 3 | ||||
-rw-r--r-- | sys/contrib/altq/altq/altq_fairq.c | 905 | ||||
-rw-r--r-- | sys/contrib/altq/altq/altq_fairq.h | 136 | ||||
-rw-r--r-- | sys/contrib/altq/altq/altq_subr.c | 30 | ||||
-rw-r--r-- | sys/contrib/altq/altq/altq_var.h | 7 |
5 files changed, 1 insertions, 1080 deletions
diff --git a/sys/contrib/altq/altq/altq.h b/sys/contrib/altq/altq/altq.h index 6200ac5..c740ed3 100644 --- a/sys/contrib/altq/altq/altq.h +++ b/sys/contrib/altq/altq/altq.h @@ -63,8 +63,7 @@ #define ALTQT_BLUE 10 /* blue */ #define ALTQT_PRIQ 11 /* priority queue */ #define ALTQT_JOBS 12 /* JoBS */ -#define ALTQT_FAIRQ 13 /* fairq */ -#define ALTQT_MAX 14 /* should be max discipline type + 1 */ +#define ALTQT_MAX 13 /* should be max discipline type + 1 */ #ifdef ALTQ3_COMPAT struct altqreq { diff --git a/sys/contrib/altq/altq/altq_fairq.c b/sys/contrib/altq/altq/altq_fairq.c deleted file mode 100644 index 2267bfd..0000000 --- a/sys/contrib/altq/altq/altq_fairq.c +++ /dev/null @@ -1,905 +0,0 @@ -/* - * Copyright (c) 2008 The DragonFly Project. All rights reserved. - * - * This code is derived from software contributed to The DragonFly Project - * by Matthew Dillon <dillon@backplane.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name of The DragonFly Project nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific, prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $DragonFly: src/sys/net/altq/altq_fairq.c,v 1.1 2008/04/06 18:58:15 dillon Exp $ - */ -/* - * Matt: I gutted altq_priq.c and used it as a skeleton on which to build - * fairq. The fairq algorithm is completely different then priq, of course, - * but because I used priq's skeleton I believe I should include priq's - * copyright. - * - * Copyright (C) 2000-2003 - * Sony Computer Science Laboratories Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * FAIRQ - take traffic classified by keep state (hashed into - * mbuf->m_pkthdr.altq_state_hash) and bucketize it. Fairly extract - * the first packet from each bucket in a round-robin fashion. - * - * TODO - better overall qlimit support (right now it is per-bucket). - * - NOTE: red etc is per bucket, not overall. - * - better service curve support. - * - * EXAMPLE: - * - * altq on em0 fairq bandwidth 650Kb queue { std, bulk } - * queue std priority 3 bandwidth 400Kb \ - * fairq (buckets 64, default, hogs 1Kb) qlimit 50 - * queue bulk priority 2 bandwidth 100Kb \ - * fairq (buckets 64, hogs 1Kb) qlimit 50 - * - * pass out on em0 from any to any keep state queue std - * pass out on em0 inet proto tcp ..... port ... keep state queue bulk - */ -#include "opt_altq.h" -#include "opt_inet.h" -#include "opt_inet6.h" - -#ifdef ALTQ_FAIRQ /* fairq is enabled in the kernel conf */ - -#include <sys/param.h> -#include <sys/malloc.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/sockio.h> -#include <sys/systm.h> -#include <sys/proc.h> -#include <sys/errno.h> -#include <sys/kernel.h> -#include <sys/queue.h> - -#include <net/if.h> -#include <netinet/in.h> - -#include <net/pfvar.h> -#include <altq/altq.h> -#include <altq/altq_fairq.h> - -/* - * function prototypes - */ -static int fairq_clear_interface(struct fairq_if *); -static int fairq_request(struct ifaltq *, int, void *); -static void fairq_purge(struct fairq_if *); -static struct fairq_class *fairq_class_create(struct fairq_if *, int, int, u_int, struct fairq_opts *, int); -static int fairq_class_destroy(struct fairq_class *); -static int fairq_enqueue(struct ifaltq *, struct mbuf *, struct altq_pktattr *); -static struct mbuf *fairq_dequeue(struct ifaltq *, int); - -static int fairq_addq(struct fairq_class *, struct mbuf *, u_int32_t); -static struct mbuf *fairq_getq(struct fairq_class *, uint64_t); -static struct mbuf *fairq_pollq(struct fairq_class *, uint64_t, int *); -static fairq_bucket_t *fairq_selectq(struct fairq_class *, int); -static void fairq_purgeq(struct fairq_class *); - -static void get_class_stats(struct fairq_classstats *, struct fairq_class *); -static struct fairq_class *clh_to_clp(struct fairq_if *, uint32_t); - -int -fairq_pfattach(struct pf_altq *a) -{ - struct ifnet *ifp; - int error; - - if ((ifp = ifunit(a->ifname)) == NULL || a->altq_disc == NULL) - return (EINVAL); - - error = altq_attach(&ifp->if_snd, ALTQT_FAIRQ, a->altq_disc, - fairq_enqueue, fairq_dequeue, fairq_request, NULL, NULL); - - return (error); -} - -int -fairq_add_altq(struct pf_altq *a) -{ - struct fairq_if *pif; - struct ifnet *ifp; - - if ((ifp = ifunit(a->ifname)) == NULL) - return (EINVAL); - if (!ALTQ_IS_READY(&ifp->if_snd)) - return (ENODEV); - - - MALLOC(pif, struct fairq_if *, sizeof(struct fairq_if), - M_DEVBUF, M_WAITOK); - if (pif == NULL) - return (ENOMEM); - bzero(pif, sizeof(struct fairq_if)); - pif->pif_bandwidth = a->ifbandwidth; - pif->pif_maxpri = -1; - pif->pif_ifq = &ifp->if_snd; - - /* keep the state in pf_altq */ - a->altq_disc = pif; - - return (0); -} - -int -fairq_remove_altq(struct pf_altq *a) -{ - struct fairq_if *pif; - - if ((pif = a->altq_disc) == NULL) - return (EINVAL); - a->altq_disc = NULL; - - fairq_clear_interface(pif); - - FREE(pif, M_DEVBUF); - return (0); -} - -int -fairq_add_queue(struct pf_altq *a) -{ - struct fairq_if *pif; - struct fairq_class *cl; - - if ((pif = a->altq_disc) == NULL) - return (EINVAL); - - /* check parameters */ - if (a->priority >= FAIRQ_MAXPRI) - return (EINVAL); - if (a->qid == 0) - return (EINVAL); - if (pif->pif_classes[a->priority] != NULL) - return (EBUSY); - if (clh_to_clp(pif, a->qid) != NULL) - return (EBUSY); - - cl = fairq_class_create(pif, a->priority, a->qlimit, a->bandwidth, - &a->pq_u.fairq_opts, a->qid); - if (cl == NULL) - return (ENOMEM); - - return (0); -} - -int -fairq_remove_queue(struct pf_altq *a) -{ - struct fairq_if *pif; - struct fairq_class *cl; - - if ((pif = a->altq_disc) == NULL) - return (EINVAL); - - if ((cl = clh_to_clp(pif, a->qid)) == NULL) - return (EINVAL); - - return (fairq_class_destroy(cl)); -} - -int -fairq_getqstats(struct pf_altq *a, void *ubuf, int *nbytes) -{ - struct fairq_if *pif; - struct fairq_class *cl; - struct fairq_classstats stats; - int error = 0; - - if ((pif = altq_lookup(a->ifname, ALTQT_FAIRQ)) == NULL) - return (EBADF); - - if ((cl = clh_to_clp(pif, a->qid)) == NULL) - return (EINVAL); - - if (*nbytes < sizeof(stats)) - return (EINVAL); - - get_class_stats(&stats, cl); - - if ((error = copyout((caddr_t)&stats, ubuf, sizeof(stats))) != 0) - return (error); - *nbytes = sizeof(stats); - return (0); -} - -/* - * bring the interface back to the initial state by discarding - * all the filters and classes. - */ -static int -fairq_clear_interface(struct fairq_if *pif) -{ - struct fairq_class *cl; - int pri; - - /* clear out the classes */ - for (pri = 0; pri <= pif->pif_maxpri; pri++) { - if ((cl = pif->pif_classes[pri]) != NULL) - fairq_class_destroy(cl); - } - - return (0); -} - -static int -fairq_request(struct ifaltq *ifq, int req, void *arg) -{ - struct fairq_if *pif = (struct fairq_if *)ifq->altq_disc; - - IFQ_LOCK_ASSERT(ifq); - - switch (req) { - case ALTRQ_PURGE: - fairq_purge(pif); - break; - } - return (0); -} - -/* discard all the queued packets on the interface */ -static void -fairq_purge(struct fairq_if *pif) -{ - struct fairq_class *cl; - int pri; - - for (pri = 0; pri <= pif->pif_maxpri; pri++) { - if ((cl = pif->pif_classes[pri]) != NULL && cl->cl_head) - fairq_purgeq(cl); - } - if (ALTQ_IS_ENABLED(pif->pif_ifq)) - pif->pif_ifq->ifq_len = 0; -} - -static struct fairq_class * -fairq_class_create(struct fairq_if *pif, int pri, int qlimit, - u_int bandwidth, struct fairq_opts *opts, int qid) -{ - struct fairq_class *cl; - int flags = opts->flags; - u_int nbuckets = opts->nbuckets; - int i, s; - -#ifndef ALTQ_RED - if (flags & FARF_RED) { -#ifdef ALTQ_DEBUG - printf("fairq_class_create: RED not configured for FAIRQ!\n"); -#endif - return (NULL); - } -#endif - if (nbuckets == 0) - nbuckets = 256; - if (nbuckets > FAIRQ_MAX_BUCKETS) - nbuckets = FAIRQ_MAX_BUCKETS; - /* enforce power-of-2 size */ - while ((nbuckets ^ (nbuckets - 1)) != ((nbuckets << 1) - 1)) - ++nbuckets; - - if ((cl = pif->pif_classes[pri]) != NULL) { - /* modify the class instead of creating a new one */ - s = splimp(); - IFQ_LOCK(cl->cl_pif->pif_ifq); - if (cl->cl_head) - fairq_purgeq(cl); - IFQ_UNLOCK(cl->cl_pif->pif_ifq); - splx(s); -#ifdef ALTQ_RIO - if (cl->cl_qtype == Q_RIO) - rio_destroy((rio_t *)cl->cl_red); -#endif -#ifdef ALTQ_RED - if (cl->cl_qtype == Q_RED) - red_destroy(cl->cl_red); -#endif - } else { - MALLOC(cl, struct fairq_class *, sizeof(struct fairq_class), - M_DEVBUF, M_WAITOK); - if (cl == NULL) - goto err_ret; - bzero(cl, sizeof(struct fairq_class)); - cl->cl_nbuckets = nbuckets; - cl->cl_nbucket_mask = nbuckets - 1; - - MALLOC(cl->cl_buckets, struct fairq_bucket *, - sizeof(struct fairq_bucket) * cl->cl_nbuckets, - M_DEVBUF, M_WAITOK); - if (cl->cl_buckets == NULL) - goto err_buckets; - bzero(cl->cl_buckets, sizeof(struct fairq_bucket) * - cl->cl_nbuckets); - cl->cl_head = NULL; - } - - pif->pif_classes[pri] = cl; - if (flags & FARF_DEFAULTCLASS) - pif->pif_default = cl; - if (qlimit == 0) - qlimit = 50; /* use default */ - cl->cl_qlimit = qlimit; - for (i = 0; i < cl->cl_nbuckets; ++i) { - qlimit(&cl->cl_buckets[i].queue) = qlimit; - } - cl->cl_bandwidth = bandwidth / 8; - cl->cl_qtype = Q_DROPTAIL; - cl->cl_flags = flags & FARF_USERFLAGS; - cl->cl_pri = pri; - if (pri > pif->pif_maxpri) - pif->pif_maxpri = pri; - cl->cl_pif = pif; - cl->cl_handle = qid; - cl->cl_hogs_m1 = opts->hogs_m1 / 8; - cl->cl_lssc_m1 = opts->lssc_m1 / 8; /* NOT YET USED */ - -#ifdef ALTQ_RED - if (flags & (FARF_RED|FARF_RIO)) { - int red_flags, red_pkttime; - - red_flags = 0; - if (flags & FARF_ECN) - red_flags |= REDF_ECN; -#ifdef ALTQ_RIO - if (flags & FARF_CLEARDSCP) - red_flags |= RIOF_CLEARDSCP; -#endif - if (pif->pif_bandwidth < 8) - red_pkttime = 1000 * 1000 * 1000; /* 1 sec */ - else - red_pkttime = (int64_t)pif->pif_ifq->altq_ifp->if_mtu - * 1000 * 1000 * 1000 / (pif->pif_bandwidth / 8); -#ifdef ALTQ_RIO - if (flags & FARF_RIO) { - cl->cl_red = (red_t *)rio_alloc(0, NULL, - red_flags, red_pkttime); - if (cl->cl_red != NULL) - cl->cl_qtype = Q_RIO; - } else -#endif - if (flags & FARF_RED) { - cl->cl_red = red_alloc(0, 0, - cl->cl_qlimit * 10/100, - cl->cl_qlimit * 30/100, - red_flags, red_pkttime); - if (cl->cl_red != NULL) - cl->cl_qtype = Q_RED; - } - } -#endif /* ALTQ_RED */ - - return (cl); - -err_buckets: - if (cl->cl_buckets != NULL) - FREE(cl->cl_buckets, M_DEVBUF); -err_ret: - if (cl->cl_red != NULL) { -#ifdef ALTQ_RIO - if (cl->cl_qtype == Q_RIO) - rio_destroy((rio_t *)cl->cl_red); -#endif -#ifdef ALTQ_RED - if (cl->cl_qtype == Q_RED) - red_destroy(cl->cl_red); -#endif - } - if (cl != NULL) - FREE(cl, M_DEVBUF); - return (NULL); -} - -static int -fairq_class_destroy(struct fairq_class *cl) -{ - struct fairq_if *pif; - int pri, s; - - s = splimp(); - IFQ_LOCK(cl->cl_pif->pif_ifq); - - if (cl->cl_head) - fairq_purgeq(cl); - - pif = cl->cl_pif; - pif->pif_classes[cl->cl_pri] = NULL; - if (pif->pif_poll_cache == cl) - pif->pif_poll_cache = NULL; - if (pif->pif_maxpri == cl->cl_pri) { - for (pri = cl->cl_pri; pri >= 0; pri--) - if (pif->pif_classes[pri] != NULL) { - pif->pif_maxpri = pri; - break; - } - if (pri < 0) - pif->pif_maxpri = -1; - } - IFQ_UNLOCK(cl->cl_pif->pif_ifq); - splx(s); - - if (cl->cl_red != NULL) { -#ifdef ALTQ_RIO - if (cl->cl_qtype == Q_RIO) - rio_destroy((rio_t *)cl->cl_red); -#endif -#ifdef ALTQ_RED - if (cl->cl_qtype == Q_RED) - red_destroy(cl->cl_red); -#endif - } - FREE(cl->cl_buckets, M_DEVBUF); - cl->cl_head = NULL; /* sanity */ - cl->cl_polled = NULL; /* sanity */ - cl->cl_buckets = NULL; /* sanity */ - FREE(cl, M_DEVBUF); - - return (0); -} - -/* - * fairq_enqueue is an enqueue function to be registered to - * (*altq_enqueue) in struct ifaltq. - */ -static int -fairq_enqueue(struct ifaltq *ifq, struct mbuf *m, struct altq_pktattr *pktattr) -{ - struct fairq_if *pif = (struct fairq_if *)ifq->altq_disc; - struct fairq_class *cl = NULL; /* Make compiler happy */ - struct pf_mtag *t; - u_int32_t qid_hash = 0; - int len; - - IFQ_LOCK_ASSERT(ifq); - - /* grab class set by classifier */ - if ((m->m_flags & M_PKTHDR) == 0) { - /* should not happen */ - printf("altq: packet for %s does not have pkthdr\n", - ifq->altq_ifp->if_xname); - m_freem(m); - return (ENOBUFS); - } - - if ((t = pf_find_mtag(m)) != NULL) { - cl = clh_to_clp(pif, t->qid); - qid_hash = t->qid_hash; - } - if (cl == NULL) { - cl = pif->pif_default; - if (cl == NULL) { - m_freem(m); - return (ENOBUFS); - } - } - cl->cl_flags |= FARF_HAS_PACKETS; - cl->cl_pktattr = NULL; - len = m_pktlen(m); - if (fairq_addq(cl, m, qid_hash) != 0) { - /* drop occurred. mbuf was freed in fairq_addq. */ - PKTCNTR_ADD(&cl->cl_dropcnt, len); - return (ENOBUFS); - } - IFQ_INC_LEN(ifq); - - return (0); -} - -/* - * fairq_dequeue is a dequeue function to be registered to - * (*altq_dequeue) in struct ifaltq. - * - * note: ALTDQ_POLL returns the next packet without removing the packet - * from the queue. ALTDQ_REMOVE is a normal dequeue operation. - * ALTDQ_REMOVE must return the same packet if called immediately - * after ALTDQ_POLL. - */ -static struct mbuf * -fairq_dequeue(struct ifaltq *ifq, int op) -{ - struct fairq_if *pif = (struct fairq_if *)ifq->altq_disc; - struct fairq_class *cl; - struct fairq_class *best_cl; - struct mbuf *best_m; - struct mbuf *m = NULL; - uint64_t cur_time = read_machclk(); - int pri; - int hit_limit; - - IFQ_LOCK_ASSERT(ifq); - - if (IFQ_IS_EMPTY(ifq)) { - return (NULL); - } - - if (pif->pif_poll_cache && op == ALTDQ_REMOVE) { - best_cl = pif->pif_poll_cache; - m = fairq_getq(best_cl, cur_time); - pif->pif_poll_cache = NULL; - if (m) { - IFQ_DEC_LEN(ifq); - PKTCNTR_ADD(&best_cl->cl_xmitcnt, m_pktlen(m)); - return (m); - } - } else { - best_cl = NULL; - best_m = NULL; - - for (pri = pif->pif_maxpri; pri >= 0; pri--) { - if ((cl = pif->pif_classes[pri]) == NULL) - continue; - if ((cl->cl_flags & FARF_HAS_PACKETS) == 0) - continue; - m = fairq_pollq(cl, cur_time, &hit_limit); - if (m == NULL) { - cl->cl_flags &= ~FARF_HAS_PACKETS; - continue; - } - - /* - * Only override the best choice if we are under - * the BW limit. - */ - if (hit_limit == 0 || best_cl == NULL) { - best_cl = cl; - best_m = m; - } - - /* - * Remember the highest priority mbuf in case we - * do not find any lower priority mbufs. - */ - if (hit_limit) - continue; - break; - } - if (op == ALTDQ_POLL) { - pif->pif_poll_cache = best_cl; - m = best_m; - } else if (best_cl) { - m = fairq_getq(best_cl, cur_time); - if (m != NULL) { - IFQ_DEC_LEN(ifq); - PKTCNTR_ADD(&best_cl->cl_xmitcnt, m_pktlen(m)); - } - } - return (m); - } - return (NULL); -} - -static int -fairq_addq(struct fairq_class *cl, struct mbuf *m, u_int32_t bucketid) -{ - fairq_bucket_t *b; - u_int hindex; - uint64_t bw; - - /* - * 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 (bucketid == 0) { - if (cl->cl_head) - b = cl->cl_head->prev; - else - b = &cl->cl_buckets[0]; - } else { - hindex = bucketid & 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; - } - } - } - -#ifdef ALTQ_RIO - if (cl->cl_qtype == Q_RIO) - return rio_addq((rio_t *)cl->cl_red, &b->queue, m, cl->cl_pktattr); -#endif -#ifdef ALTQ_RED - if (cl->cl_qtype == Q_RED) - return red_addq(cl->cl_red, &b->queue, m, cl->cl_pktattr); -#endif - if (qlen(&b->queue) >= qlimit(&b->queue)) { - m_freem(m); - return (-1); - } - - if (cl->cl_flags & FARF_CLEARDSCP) - write_dsfield(m, cl->cl_pktattr, 0); - - _addq(&b->queue, m); - - return (0); -} - -static struct mbuf * -fairq_getq(struct fairq_class *cl, uint64_t cur_time) -{ - fairq_bucket_t *b; - struct mbuf *m; - - b = fairq_selectq(cl, 0); - if (b == NULL) - m = NULL; -#ifdef ALTQ_RIO - else if (cl->cl_qtype == Q_RIO) - m = rio_getq((rio_t *)cl->cl_red, &b->queue); -#endif -#ifdef ALTQ_RED - else if (cl->cl_qtype == Q_RED) - m = red_getq(cl->cl_red, &b->queue); -#endif - else - m = _getq(&b->queue); - - /* - * Calculate the BW change - */ - if (m != NULL) { - uint64_t delta; - - /* - * Per-class bandwidth calculation - */ - delta = (cur_time - cl->cl_last_time); - if (delta > machclk_freq * 8) - delta = machclk_freq * 8; - cl->cl_bw_delta += delta; - cl->cl_bw_bytes += m->m_pkthdr.len; - cl->cl_last_time = cur_time; - cl->cl_bw_delta -= cl->cl_bw_delta >> 3; - cl->cl_bw_bytes -= cl->cl_bw_bytes >> 3; - - /* - * Per-bucket bandwidth calculation - */ - delta = (cur_time - b->last_time); - if (delta > machclk_freq * 8) - delta = machclk_freq * 8; - b->bw_delta += delta; - b->bw_bytes += m->m_pkthdr.len; - b->last_time = cur_time; - b->bw_delta -= b->bw_delta >> 3; - b->bw_bytes -= b->bw_bytes >> 3; - } - return(m); -} - -/* - * Figure out what the next packet would be if there were no limits. If - * this class hits its bandwidth limit *hit_limit is set to no-zero, otherwise - * it is set to 0. A non-NULL mbuf is returned either way. - */ -static struct mbuf * -fairq_pollq(struct fairq_class *cl, uint64_t cur_time, int *hit_limit) -{ - fairq_bucket_t *b; - struct mbuf *m; - uint64_t delta; - uint64_t bw; - - *hit_limit = 0; - b = fairq_selectq(cl, 1); - if (b == NULL) - return(NULL); - m = qhead(&b->queue); - - /* - * Did this packet exceed the class bandwidth? Calculate the - * bandwidth component of the packet. - * - * - Calculate bytes per second - */ - delta = cur_time - cl->cl_last_time; - if (delta > machclk_freq * 8) - delta = machclk_freq * 8; - cl->cl_bw_delta += delta; - cl->cl_last_time = cur_time; - if (cl->cl_bw_delta) { - bw = cl->cl_bw_bytes * machclk_freq / cl->cl_bw_delta; - - if (bw > cl->cl_bandwidth) - *hit_limit = 1; -#if 0 - printf("BW %6lld relative to %6u %d queue %p\n", - bw, cl->cl_bandwidth, *hit_limit, b); -#endif - } - return(m); -} - -/* - * Locate the next queue we want to pull a packet out of. This code - * is also responsible for removing empty buckets from the circular list. - */ -static -fairq_bucket_t * -fairq_selectq(struct fairq_class *cl, int ispoll) -{ - fairq_bucket_t *b; - uint64_t bw; - - if (ispoll == 0 && cl->cl_polled) { - b = cl->cl_polled; - cl->cl_polled = NULL; - return(b); - } - - while ((b = cl->cl_head) != NULL) { - /* - * Remove empty queues from consideration - */ - if (qempty(&b->queue)) { - b->in_use = 0; - cl->cl_head = b->next; - if (cl->cl_head == b) { - cl->cl_head = NULL; - } else { - b->next->prev = b->prev; - b->prev->next = b->next; - } - continue; - } - - /* - * Advance the round robin. Queues with bandwidths less - * then the hog bandwidth are allowed to burst. - */ - if (cl->cl_hogs_m1 == 0) { - cl->cl_head = b->next; - } else if (b->bw_delta) { - bw = b->bw_bytes * machclk_freq / b->bw_delta; - if (bw >= cl->cl_hogs_m1) { - cl->cl_head = b->next; - } - /* - * XXX TODO - - */ - } - - /* - * Return bucket b. - */ - break; - } - if (ispoll) - cl->cl_polled = b; - return(b); -} - -static void -fairq_purgeq(struct fairq_class *cl) -{ - fairq_bucket_t *b; - struct mbuf *m; - - while ((b = fairq_selectq(cl, 0)) != NULL) { - while ((m = _getq(&b->queue)) != NULL) { - PKTCNTR_ADD(&cl->cl_dropcnt, m_pktlen(m)); - m_freem(m); - } - ASSERT(qlen(&b->queue) == 0); - } -} - -static void -get_class_stats(struct fairq_classstats *sp, struct fairq_class *cl) -{ - fairq_bucket_t *b; - - sp->class_handle = cl->cl_handle; - sp->qlimit = cl->cl_qlimit; - sp->xmit_cnt = cl->cl_xmitcnt; - sp->drop_cnt = cl->cl_dropcnt; - sp->qtype = cl->cl_qtype; - sp->qlength = 0; - - if (cl->cl_head) { - b = cl->cl_head; - do { - sp->qlength += qlen(&b->queue); - b = b->next; - } while (b != cl->cl_head); - } - -#ifdef ALTQ_RED - if (cl->cl_qtype == Q_RED) - red_getstats(cl->cl_red, &sp->red[0]); -#endif -#ifdef ALTQ_RIO - if (cl->cl_qtype == Q_RIO) - rio_getstats((rio_t *)cl->cl_red, &sp->red[0]); -#endif -} - -/* convert a class handle to the corresponding class pointer */ -static struct fairq_class * -clh_to_clp(struct fairq_if *pif, uint32_t chandle) -{ - struct fairq_class *cl; - int idx; - - if (chandle == 0) - return (NULL); - - for (idx = pif->pif_maxpri; idx >= 0; idx--) - if ((cl = pif->pif_classes[idx]) != NULL && - cl->cl_handle == chandle) - return (cl); - - return (NULL); -} - -#endif /* ALTQ_FAIRQ */ diff --git a/sys/contrib/altq/altq/altq_fairq.h b/sys/contrib/altq/altq/altq_fairq.h deleted file mode 100644 index e4675e0..0000000 --- a/sys/contrib/altq/altq/altq_fairq.h +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Copyright (c) 2008 The DragonFly Project. All rights reserved. - * - * This code is derived from software contributed to The DragonFly Project - * by Matthew Dillon <dillon@backplane.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name of The DragonFly Project nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific, prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $DragonFly: src/sys/net/altq/altq_fairq.h,v 1.1 2008/04/06 18:58:15 dillon Exp $ - */ - -#ifndef _ALTQ_ALTQ_FAIRQ_H_ -#define _ALTQ_ALTQ_FAIRQ_H_ - -#include <altq/altq.h> -#include <altq/altq_classq.h> -#include <altq/altq_red.h> -#include <altq/altq_rio.h> -#include <altq/altq_rmclass.h> - -#define FAIRQ_MAX_BUCKETS 2048 /* maximum number of sorting buckets */ -#define FAIRQ_MAXPRI RM_MAXPRIO -#define FAIRQ_BITMAP_WIDTH (sizeof(fairq_bitmap_t)*8) -#define FAIRQ_BITMAP_MASK (FAIRQ_BITMAP_WIDTH - 1) - -/* fairq class flags */ -#define FARF_RED 0x0001 /* use RED */ -#define FARF_ECN 0x0002 /* use RED/ECN */ -#define FARF_RIO 0x0004 /* use RIO */ -#define FARF_CLEARDSCP 0x0010 /* clear diffserv codepoint */ -#define FARF_DEFAULTCLASS 0x1000 /* default class */ - -#define FARF_HAS_PACKETS 0x2000 /* might have queued packets */ - -#define FARF_USERFLAGS (FARF_RED|FARF_ECN|FARF_RIO|FARF_CLEARDSCP| \ - FARF_DEFAULTCLASS) - -/* special class handles */ -#define FAIRQ_NULLCLASS_HANDLE 0 - -typedef u_int fairq_bitmap_t; - -struct fairq_classstats { - uint32_t class_handle; - - u_int qlength; - u_int qlimit; - struct pktcntr xmit_cnt; /* transmitted packet counter */ - struct pktcntr drop_cnt; /* dropped packet counter */ - - /* red and rio related info */ - int qtype; - struct redstats red[3]; /* rio has 3 red stats */ -}; - -#ifdef _KERNEL - -typedef struct fairq_bucket { - struct fairq_bucket *next; /* circular list */ - struct fairq_bucket *prev; /* circular list */ - class_queue_t queue; /* the actual queue */ - uint64_t bw_bytes; /* statistics used to calculate bw */ - uint64_t bw_delta; /* statistics used to calculate bw */ - uint64_t last_time; - int in_use; -} fairq_bucket_t; - -struct fairq_class { - uint32_t cl_handle; /* class handle */ - u_int cl_nbuckets; /* (power of 2) */ - u_int cl_nbucket_mask; /* bucket mask */ - fairq_bucket_t *cl_buckets; - fairq_bucket_t *cl_head; /* head of circular bucket list */ - fairq_bucket_t *cl_polled; - struct red *cl_red; /* RED state */ - u_int cl_hogs_m1; - u_int cl_lssc_m1; - u_int cl_bandwidth; - uint64_t cl_bw_bytes; - uint64_t cl_bw_delta; - uint64_t cl_last_time; - int cl_qtype; /* rollup */ - int cl_qlimit; - int cl_pri; /* priority */ - int cl_flags; /* class flags */ - struct fairq_if *cl_pif; /* back pointer to pif */ - struct altq_pktattr *cl_pktattr; /* saved header used by ECN */ - - /* round robin index */ - - /* statistics */ - struct pktcntr cl_xmitcnt; /* transmitted packet counter */ - struct pktcntr cl_dropcnt; /* dropped packet counter */ -}; - -/* - * fairq interface state - */ -struct fairq_if { - struct fairq_if *pif_next; /* interface state list */ - struct ifaltq *pif_ifq; /* backpointer to ifaltq */ - u_int pif_bandwidth; /* link bandwidth in bps */ - int pif_maxpri; /* max priority in use */ - struct fairq_class *pif_poll_cache;/* cached poll */ - struct fairq_class *pif_default; /* default class */ - struct fairq_class *pif_classes[FAIRQ_MAXPRI]; /* classes */ -}; - -#endif /* _KERNEL */ - -#endif /* _ALTQ_ALTQ_FAIRQ_H_ */ diff --git a/sys/contrib/altq/altq/altq_subr.c b/sys/contrib/altq/altq/altq_subr.c index d59751a..16b796a 100644 --- a/sys/contrib/altq/altq/altq_subr.c +++ b/sys/contrib/altq/altq/altq_subr.c @@ -537,11 +537,6 @@ altq_pfattach(struct pf_altq *a) error = hfsc_pfattach(a); break; #endif -#ifdef ALTQ_FAIRQ - case ALTQT_FAIRQ: - error = fairq_pfattach(a); - break; -#endif default: error = ENXIO; } @@ -617,11 +612,6 @@ altq_add(struct pf_altq *a) error = hfsc_add_altq(a); break; #endif -#ifdef ALTQ_FAIRQ - case ALTQT_FAIRQ: - error = fairq_add_altq(a); - break; -#endif default: error = ENXIO; } @@ -658,11 +648,6 @@ altq_remove(struct pf_altq *a) error = hfsc_remove_altq(a); break; #endif -#ifdef ALTQ_FAIRQ - case ALTQT_FAIRQ: - error = fairq_remove_altq(a); - break; -#endif default: error = ENXIO; } @@ -696,11 +681,6 @@ altq_add_queue(struct pf_altq *a) error = hfsc_add_queue(a); break; #endif -#ifdef ALTQ_FAIRQ - case ALTQT_FAIRQ: - error = fairq_add_queue(a); - break; -#endif default: error = ENXIO; } @@ -734,11 +714,6 @@ altq_remove_queue(struct pf_altq *a) error = hfsc_remove_queue(a); break; #endif -#ifdef ALTQ_FAIRQ - case ALTQT_FAIRQ: - error = fairq_remove_queue(a); - break; -#endif default: error = ENXIO; } @@ -772,11 +747,6 @@ altq_getqstats(struct pf_altq *a, void *ubuf, int *nbytes) error = hfsc_getqstats(a, ubuf, nbytes); break; #endif -#ifdef ALTQ_FAIRQ - case ALTQT_FAIRQ: - error = fairq_getqstats(a, ubuf, nbytes); - break; -#endif default: error = ENXIO; } diff --git a/sys/contrib/altq/altq/altq_var.h b/sys/contrib/altq/altq/altq_var.h index eb603ea..956ee16 100644 --- a/sys/contrib/altq/altq/altq_var.h +++ b/sys/contrib/altq/altq/altq_var.h @@ -257,12 +257,5 @@ int hfsc_add_queue(struct pf_altq *); int hfsc_remove_queue(struct pf_altq *); int hfsc_getqstats(struct pf_altq *, void *, int *); -int fairq_pfattach(struct pf_altq *); -int fairq_add_altq(struct pf_altq *); -int fairq_remove_altq(struct pf_altq *); -int fairq_add_queue(struct pf_altq *); -int fairq_remove_queue(struct pf_altq *); -int fairq_getqstats(struct pf_altq *, void *, int *); - #endif /* _KERNEL */ #endif /* _ALTQ_ALTQ_VAR_H_ */ |