Date: Wed, 24 Jun 2015 19:16:41 +0000 (UTC) From: Ermal Luçi <eri@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r284777 - in head: sbin/pfctl share/man/man4 sys/conf sys/net/altq sys/netpfil/pf Message-ID: <201506241916.t5OJGfEm025914@svn.freebsd.org>
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Author: eri Date: Wed Jun 24 19:16:41 2015 New Revision: 284777 URL: https://svnweb.freebsd.org/changeset/base/284777 Log: ALTQ FAIRQ discipline import from DragonFLY Differential Revision: https://reviews.freebsd.org/D2847 Reviewed by: glebius, wblock(manpage) Approved by: gnn(mentor) Obtained from: pfSense Sponsored by: Netgate Added: head/sys/net/altq/altq_fairq.c (contents, props changed) head/sys/net/altq/altq_fairq.h (contents, props changed) Modified: head/sbin/pfctl/parse.y head/sbin/pfctl/pfctl_altq.c head/sbin/pfctl/pfctl_parser.h head/sbin/pfctl/pfctl_qstats.c head/share/man/man4/altq.4 head/sys/conf/NOTES head/sys/conf/files head/sys/conf/options head/sys/net/altq/altq.h head/sys/net/altq/altq_subr.c head/sys/net/altq/altq_var.h head/sys/netpfil/pf/pf.c head/sys/netpfil/pf/pf_altq.h head/sys/netpfil/pf/pf_mtag.h Modified: head/sbin/pfctl/parse.y ============================================================================== --- head/sbin/pfctl/parse.y Wed Jun 24 19:06:54 2015 (r284776) +++ head/sbin/pfctl/parse.y Wed Jun 24 19:16:41 2015 (r284777) @@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$"); #include <net/altq/altq_cbq.h> #include <net/altq/altq_priq.h> #include <net/altq/altq_hfsc.h> +#include <net/altq/altq_fairq.h> #include <stdio.h> #include <unistd.h> @@ -300,6 +301,7 @@ struct pool_opts { struct node_hfsc_opts hfsc_opts; +struct node_fairq_opts fairq_opts; struct node_state_opt *keep_state_defaults = NULL; int disallow_table(struct node_host *, const char *); @@ -422,6 +424,7 @@ typedef struct { struct table_opts table_opts; struct pool_opts pool_opts; struct node_hfsc_opts hfsc_opts; + struct node_fairq_opts fairq_opts; } v; int lineno; } YYSTYPE; @@ -446,8 +449,8 @@ int parseport(char *, struct range *r, i %token REQUIREORDER SYNPROXY FINGERPRINTS NOSYNC DEBUG SKIP HOSTID %token ANTISPOOF FOR INCLUDE %token BITMASK RANDOM SOURCEHASH ROUNDROBIN STATICPORT PROBABILITY -%token ALTQ CBQ PRIQ HFSC BANDWIDTH TBRSIZE LINKSHARE REALTIME UPPERLIMIT -%token QUEUE PRIORITY QLIMIT RTABLE +%token ALTQ CBQ PRIQ HFSC FAIRQ BANDWIDTH TBRSIZE LINKSHARE REALTIME UPPERLIMIT +%token QUEUE PRIORITY QLIMIT HOGS BUCKETS RTABLE %token LOAD RULESET_OPTIMIZATION %token STICKYADDRESS MAXSRCSTATES MAXSRCNODES SOURCETRACK GLOBAL RULE %token MAXSRCCONN MAXSRCCONNRATE OVERLOAD FLUSH SLOPPY @@ -495,6 +498,7 @@ int parseport(char *, struct range *r, i %type <v.number> cbqflags_list cbqflags_item %type <v.number> priqflags_list priqflags_item %type <v.hfsc_opts> hfscopts_list hfscopts_item hfsc_opts +%type <v.fairq_opts> fairqopts_list fairqopts_item fairq_opts %type <v.queue_bwspec> bandwidth %type <v.filter_opts> filter_opts filter_opt filter_opts_l %type <v.antispoof_opts> antispoof_opts antispoof_opt antispoof_opts_l @@ -1659,6 +1663,15 @@ scheduler : CBQ { $$.qtype = ALTQT_HFSC; $$.data.hfsc_opts = $3; } + | FAIRQ { + $$.qtype = ALTQT_FAIRQ; + bzero(&$$.data.fairq_opts, + sizeof(struct node_fairq_opts)); + } + | FAIRQ '(' fairq_opts ')' { + $$.qtype = ALTQT_FAIRQ; + $$.data.fairq_opts = $3; + } ; cbqflags_list : cbqflags_item { $$ |= $1; } @@ -1807,6 +1820,61 @@ hfscopts_item : LINKSHARE bandwidth { } ; +fairq_opts : { + bzero(&fairq_opts, + sizeof(struct node_fairq_opts)); + } + fairqopts_list { + $$ = fairq_opts; + } + ; + +fairqopts_list : fairqopts_item + | fairqopts_list comma fairqopts_item + ; + +fairqopts_item : LINKSHARE bandwidth { + if (fairq_opts.linkshare.used) { + yyerror("linkshare already specified"); + YYERROR; + } + fairq_opts.linkshare.m2 = $2; + fairq_opts.linkshare.used = 1; + } + | LINKSHARE '(' bandwidth number bandwidth ')' { + if (fairq_opts.linkshare.used) { + yyerror("linkshare already specified"); + YYERROR; + } + fairq_opts.linkshare.m1 = $3; + fairq_opts.linkshare.d = $4; + fairq_opts.linkshare.m2 = $5; + fairq_opts.linkshare.used = 1; + } + | HOGS bandwidth { + fairq_opts.hogs_bw = $2; + } + | BUCKETS number { + fairq_opts.nbuckets = $2; + } + | STRING { + if (!strcmp($1, "default")) + fairq_opts.flags |= FARF_DEFAULTCLASS; + else if (!strcmp($1, "red")) + fairq_opts.flags |= FARF_RED; + else if (!strcmp($1, "ecn")) + fairq_opts.flags |= FARF_RED|FARF_ECN; + else if (!strcmp($1, "rio")) + fairq_opts.flags |= FARF_RIO; + else { + yyerror("unknown fairq flag \"%s\"", $1); + free($1); + YYERROR; + } + free($1); + } + ; + qassign : /* empty */ { $$ = NULL; } | qassign_item { $$ = $1; } | '{' optnl qassign_list '}' { $$ = $3; } @@ -5226,6 +5294,7 @@ lookup(char *s) { "bitmask", BITMASK}, { "block", BLOCK}, { "block-policy", BLOCKPOLICY}, + { "buckets", BUCKETS}, { "cbq", CBQ}, { "code", CODE}, { "crop", FRAGCROP}, @@ -5235,6 +5304,7 @@ lookup(char *s) { "drop", DROP}, { "drop-ovl", FRAGDROP}, { "dup-to", DUPTO}, + { "fairq", FAIRQ}, { "fastroute", FASTROUTE}, { "file", FILENAME}, { "fingerprints", FINGERPRINTS}, @@ -5247,6 +5317,7 @@ lookup(char *s) { "global", GLOBAL}, { "group", GROUP}, { "hfsc", HFSC}, + { "hogs", HOGS}, { "hostid", HOSTID}, { "icmp-type", ICMPTYPE}, { "icmp6-type", ICMP6TYPE}, Modified: head/sbin/pfctl/pfctl_altq.c ============================================================================== --- head/sbin/pfctl/pfctl_altq.c Wed Jun 24 19:06:54 2015 (r284776) +++ head/sbin/pfctl/pfctl_altq.c Wed Jun 24 19:16:41 2015 (r284777) @@ -42,6 +42,7 @@ __FBSDID("$FreeBSD$"); #include <net/altq/altq_cbq.h> #include <net/altq/altq_priq.h> #include <net/altq/altq_hfsc.h> +#include <net/altq/altq_fairq.h> #include "pfctl_parser.h" #include "pfctl.h" @@ -68,6 +69,11 @@ static int check_commit_hfsc(int, int, s static int print_hfsc_opts(const struct pf_altq *, const struct node_queue_opt *); +static int eval_pfqueue_fairq(struct pfctl *, struct pf_altq *); +static int print_fairq_opts(const struct pf_altq *, + const struct node_queue_opt *); +static int check_commit_fairq(int, int, struct pf_altq *); + static void gsc_add_sc(struct gen_sc *, struct service_curve *); static int is_gsc_under_sc(struct gen_sc *, struct service_curve *); @@ -88,6 +94,8 @@ int eval_queue_opts(struct pf_altq *, u_int32_t eval_bwspec(struct node_queue_bw *, u_int32_t); void print_hfsc_sc(const char *, u_int, u_int, u_int, const struct node_hfsc_sc *); +void print_fairq_sc(const char *, u_int, u_int, u_int, + const struct node_fairq_sc *); void pfaltq_store(struct pf_altq *a) @@ -173,6 +181,10 @@ print_altq(const struct pf_altq *a, unsi if (!print_hfsc_opts(a, qopts)) printf("hfsc "); break; + case ALTQT_FAIRQ: + if (!print_fairq_opts(a, qopts)) + printf("fairq "); + break; } if (bw != NULL && bw->bw_percent > 0) { @@ -203,7 +215,8 @@ print_queue(const struct pf_altq *a, uns printf("%s ", a->qname); if (print_interface) printf("on %s ", a->ifname); - if (a->scheduler == ALTQT_CBQ || a->scheduler == ALTQT_HFSC) { + if (a->scheduler == ALTQT_CBQ || a->scheduler == ALTQT_HFSC || + a->scheduler == ALTQT_FAIRQ) { if (bw != NULL && bw->bw_percent > 0) { if (bw->bw_percent < 100) printf("bandwidth %u%% ", bw->bw_percent); @@ -224,6 +237,9 @@ print_queue(const struct pf_altq *a, uns case ALTQT_HFSC: print_hfsc_opts(a, qopts); break; + case ALTQT_FAIRQ: + print_fairq_opts(a, qopts); + break; } } @@ -294,6 +310,9 @@ check_commit_altq(int dev, int opts) case ALTQT_HFSC: error = check_commit_hfsc(dev, opts, altq); break; + case ALTQT_FAIRQ: + error = check_commit_fairq(dev, opts, altq); + break; default: break; } @@ -342,7 +361,8 @@ eval_pfqueue(struct pfctl *pf, struct pf if (pa->qlimit == 0) pa->qlimit = DEFAULT_QLIMIT; - if (pa->scheduler == ALTQT_CBQ || pa->scheduler == ALTQT_HFSC) { + if (pa->scheduler == ALTQT_CBQ || pa->scheduler == ALTQT_HFSC || + pa->scheduler == ALTQT_FAIRQ) { pa->bandwidth = eval_bwspec(bw, parent == NULL ? 0 : parent->bandwidth); @@ -388,6 +408,9 @@ eval_pfqueue(struct pfctl *pf, struct pf case ALTQT_HFSC: error = eval_pfqueue_hfsc(pf, pa); break; + case ALTQT_FAIRQ: + error = eval_pfqueue_fairq(pf, pa); + break; default: break; } @@ -807,6 +830,85 @@ err_ret: return (-1); } +/* + * FAIRQ support functions + */ +static int +eval_pfqueue_fairq(struct pfctl *pf __unused, struct pf_altq *pa) +{ + struct pf_altq *altq, *parent; + struct fairq_opts *opts; + struct service_curve sc; + + opts = &pa->pq_u.fairq_opts; + + if (pa->parent[0] == 0) { + /* root queue */ + opts->lssc_m1 = pa->ifbandwidth; + opts->lssc_m2 = pa->ifbandwidth; + opts->lssc_d = 0; + return (0); + } + + LIST_INIT(&lssc); + + /* if link_share is not specified, use bandwidth */ + if (opts->lssc_m2 == 0) + opts->lssc_m2 = pa->bandwidth; + + /* + * admission control: + * for the real-time service curve, the sum of the service curves + * should not exceed 80% of the interface bandwidth. 20% is reserved + * not to over-commit the actual interface bandwidth. + * for the link-sharing service curve, the sum of the child service + * curve should not exceed the parent service curve. + * for the upper-limit service curve, the assigned bandwidth should + * be smaller than the interface bandwidth, and the upper-limit should + * be larger than the real-time service curve when both are defined. + */ + parent = qname_to_pfaltq(pa->parent, pa->ifname); + if (parent == NULL) + errx(1, "parent %s not found for %s", pa->parent, pa->qname); + + TAILQ_FOREACH(altq, &altqs, entries) { + if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) + continue; + if (altq->qname[0] == 0) /* this is for interface */ + continue; + + if (strncmp(altq->parent, pa->parent, PF_QNAME_SIZE) != 0) + continue; + + /* if the class has a link-sharing service curve, add it. */ + if (opts->lssc_m2 != 0 && altq->pq_u.fairq_opts.lssc_m2 != 0) { + sc.m1 = altq->pq_u.fairq_opts.lssc_m1; + sc.d = altq->pq_u.fairq_opts.lssc_d; + sc.m2 = altq->pq_u.fairq_opts.lssc_m2; + gsc_add_sc(&lssc, &sc); + } + } + + /* check the link-sharing service curve. */ + if (opts->lssc_m2 != 0) { + sc.m1 = parent->pq_u.fairq_opts.lssc_m1; + sc.d = parent->pq_u.fairq_opts.lssc_d; + sc.m2 = parent->pq_u.fairq_opts.lssc_m2; + if (!is_gsc_under_sc(&lssc, &sc)) { + warnx("link-sharing sc exceeds parent's sc"); + goto err_ret; + } + } + + gsc_destroy(&lssc); + + return (0); + +err_ret: + gsc_destroy(&lssc); + return (-1); +} + static int check_commit_hfsc(int dev, int opts, struct pf_altq *pa) { @@ -847,6 +949,43 @@ check_commit_hfsc(int dev, int opts, str } static int +check_commit_fairq(int dev __unused, int opts __unused, struct pf_altq *pa) +{ + struct pf_altq *altq, *def = NULL; + int default_class; + int error = 0; + + /* check if fairq has one default queue for this interface */ + default_class = 0; + TAILQ_FOREACH(altq, &altqs, entries) { + if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) + continue; + if (altq->qname[0] == 0) /* this is for interface */ + continue; + if (altq->pq_u.fairq_opts.flags & FARF_DEFAULTCLASS) { + default_class++; + def = altq; + } + } + if (default_class != 1) { + warnx("should have one default queue on %s", pa->ifname); + return (1); + } + /* make sure the default queue is a leaf */ + TAILQ_FOREACH(altq, &altqs, entries) { + if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0) + continue; + if (altq->qname[0] == 0) /* this is for interface */ + continue; + if (strncmp(altq->parent, def->qname, PF_QNAME_SIZE) == 0) { + warnx("default queue is not a leaf"); + error++; + } + } + return (error); +} + +static int print_hfsc_opts(const struct pf_altq *a, const struct node_queue_opt *qopts) { const struct hfsc_opts *opts; @@ -892,6 +1031,43 @@ print_hfsc_opts(const struct pf_altq *a, return (0); } +static int +print_fairq_opts(const struct pf_altq *a, const struct node_queue_opt *qopts) +{ + const struct fairq_opts *opts; + const struct node_fairq_sc *loc_lssc; + + opts = &a->pq_u.fairq_opts; + if (qopts == NULL) + loc_lssc = NULL; + else + loc_lssc = &qopts->data.fairq_opts.linkshare; + + if (opts->flags || + (opts->lssc_m2 != 0 && (opts->lssc_m2 != a->bandwidth || + opts->lssc_d != 0))) { + printf("fairq("); + if (opts->flags & FARF_RED) + printf(" red"); + if (opts->flags & FARF_ECN) + printf(" ecn"); + if (opts->flags & FARF_RIO) + printf(" rio"); + if (opts->flags & FARF_CLEARDSCP) + printf(" cleardscp"); + if (opts->flags & FARF_DEFAULTCLASS) + printf(" default"); + if (opts->lssc_m2 != 0 && (opts->lssc_m2 != a->bandwidth || + opts->lssc_d != 0)) + print_fairq_sc("linkshare", opts->lssc_m1, opts->lssc_d, + opts->lssc_m2, loc_lssc); + printf(" ) "); + + return (1); + } else + return (0); +} + /* * admission control using generalized service curve */ @@ -1211,6 +1387,23 @@ eval_queue_opts(struct pf_altq *pa, stru opts->data.hfsc_opts.upperlimit.d; } break; + case ALTQT_FAIRQ: + pa->pq_u.fairq_opts.flags = opts->data.fairq_opts.flags; + pa->pq_u.fairq_opts.nbuckets = opts->data.fairq_opts.nbuckets; + pa->pq_u.fairq_opts.hogs_m1 = + eval_bwspec(&opts->data.fairq_opts.hogs_bw, ref_bw); + + if (opts->data.fairq_opts.linkshare.used) { + pa->pq_u.fairq_opts.lssc_m1 = + eval_bwspec(&opts->data.fairq_opts.linkshare.m1, + ref_bw); + pa->pq_u.fairq_opts.lssc_m2 = + eval_bwspec(&opts->data.fairq_opts.linkshare.m2, + ref_bw); + pa->pq_u.fairq_opts.lssc_d = + opts->data.fairq_opts.linkshare.d; + } + break; default: warnx("eval_queue_opts: unknown scheduler type %u", opts->qtype); @@ -1256,3 +1449,27 @@ print_hfsc_sc(const char *scname, u_int if (d != 0) printf(")"); } + +void +print_fairq_sc(const char *scname, u_int m1, u_int d, u_int m2, + const struct node_fairq_sc *sc) +{ + printf(" %s", scname); + + if (d != 0) { + printf("("); + if (sc != NULL && sc->m1.bw_percent > 0) + printf("%u%%", sc->m1.bw_percent); + else + printf("%s", rate2str((double)m1)); + printf(" %u", d); + } + + if (sc != NULL && sc->m2.bw_percent > 0) + printf(" %u%%", sc->m2.bw_percent); + else + printf(" %s", rate2str((double)m2)); + + if (d != 0) + printf(")"); +} Modified: head/sbin/pfctl/pfctl_parser.h ============================================================================== --- head/sbin/pfctl/pfctl_parser.h Wed Jun 24 19:06:54 2015 (r284776) +++ head/sbin/pfctl/pfctl_parser.h Wed Jun 24 19:16:41 2015 (r284777) @@ -150,12 +150,27 @@ struct node_hfsc_opts { int flags; }; +struct node_fairq_sc { + struct node_queue_bw m1; /* slope of 1st segment; bps */ + u_int d; /* x-projection of m1; msec */ + struct node_queue_bw m2; /* slope of 2nd segment; bps */ + u_int8_t used; +}; + +struct node_fairq_opts { + struct node_fairq_sc linkshare; + struct node_queue_bw hogs_bw; + u_int nbuckets; + int flags; +}; + struct node_queue_opt { int qtype; union { struct cbq_opts cbq_opts; struct priq_opts priq_opts; struct node_hfsc_opts hfsc_opts; + struct node_fairq_opts fairq_opts; } data; }; Modified: head/sbin/pfctl/pfctl_qstats.c ============================================================================== --- head/sbin/pfctl/pfctl_qstats.c Wed Jun 24 19:06:54 2015 (r284776) +++ head/sbin/pfctl/pfctl_qstats.c Wed Jun 24 19:16:41 2015 (r284777) @@ -38,6 +38,7 @@ __FBSDID("$FreeBSD$"); #include <net/altq/altq_cbq.h> #include <net/altq/altq_priq.h> #include <net/altq/altq_hfsc.h> +#include <net/altq/altq_fairq.h> #include "pfctl.h" #include "pfctl_parser.h" @@ -46,6 +47,7 @@ union class_stats { class_stats_t cbq_stats; struct priq_classstats priq_stats; struct hfsc_classstats hfsc_stats; + struct fairq_classstats fairq_stats; }; #define AVGN_MAX 8 @@ -77,6 +79,7 @@ void pfctl_print_altq_node(int, const void print_cbqstats(struct queue_stats); void print_priqstats(struct queue_stats); void print_hfscstats(struct queue_stats); +void print_fairqstats(struct queue_stats); void pfctl_free_altq_node(struct pf_altq_node *); void pfctl_print_altq_nodestat(int, const struct pf_altq_node *); @@ -317,6 +320,9 @@ pfctl_print_altq_nodestat(int dev, const case ALTQT_HFSC: print_hfscstats(a->qstats); break; + case ALTQT_FAIRQ: + print_fairqstats(a->qstats); + break; } } @@ -382,6 +388,26 @@ print_hfscstats(struct queue_stats cur) } void +print_fairqstats(struct queue_stats cur) +{ + printf(" [ pkts: %10llu bytes: %10llu " + "dropped pkts: %6llu bytes: %6llu ]\n", + (unsigned long long)cur.data.fairq_stats.xmit_cnt.packets, + (unsigned long long)cur.data.fairq_stats.xmit_cnt.bytes, + (unsigned long long)cur.data.fairq_stats.drop_cnt.packets, + (unsigned long long)cur.data.fairq_stats.drop_cnt.bytes); + printf(" [ qlength: %3d/%3d ]\n", + cur.data.fairq_stats.qlength, cur.data.fairq_stats.qlimit); + + if (cur.avgn < 2) + return; + + printf(" [ measured: %7.1f packets/s, %s/s ]\n", + cur.avg_packets / STAT_INTERVAL, + rate2str((8 * cur.avg_bytes) / STAT_INTERVAL)); +} + +void pfctl_free_altq_node(struct pf_altq_node *node) { while (node != NULL) { @@ -421,6 +447,10 @@ update_avg(struct pf_altq_node *a) b = qs->data.hfsc_stats.xmit_cnt.bytes; p = qs->data.hfsc_stats.xmit_cnt.packets; break; + case ALTQT_FAIRQ: + b = qs->data.fairq_stats.xmit_cnt.bytes; + p = qs->data.fairq_stats.xmit_cnt.packets; + break; default: b = 0; p = 0; Modified: head/share/man/man4/altq.4 ============================================================================== --- head/share/man/man4/altq.4 Wed Jun 24 19:06:54 2015 (r284776) +++ head/share/man/man4/altq.4 Wed Jun 24 19:16:41 2015 (r284777) @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd December 9, 2011 +.Dd June 24, 2015 .Dt ALTQ 4 .Os .Sh NAME @@ -40,6 +40,7 @@ .Cd options ALTQ_HFSC .Cd options ALTQ_CDNR .Cd options ALTQ_PRIQ +.Cd options ALTQ_FAIRQ .Sh DESCRIPTION The .Nm @@ -93,6 +94,10 @@ any of the available disciplines or cons Build the .Dq "Priority Queuing" discipline. +.It Dv ALTQ_FAIRQ +Build the +.Dq "Fair Queuing" +discipline. .It Dv ALTQ_NOPCC Required if the TSC is unusable. .It Dv ALTQ_DEBUG Modified: head/sys/conf/NOTES ============================================================================== --- head/sys/conf/NOTES Wed Jun 24 19:06:54 2015 (r284776) +++ head/sys/conf/NOTES Wed Jun 24 19:16:41 2015 (r284777) @@ -709,6 +709,7 @@ options ALTQ_CBQ # Class Based Queueing options ALTQ_RED # Random Early Detection options ALTQ_RIO # RED In/Out options ALTQ_HFSC # Hierarchical Packet Scheduler +options ALTQ_FAIRQ # Fair Packet Scheduler options ALTQ_CDNR # Traffic conditioner options ALTQ_PRIQ # Priority Queueing options ALTQ_NOPCC # Required if the TSC is unusable Modified: head/sys/conf/files ============================================================================== --- head/sys/conf/files Wed Jun 24 19:06:54 2015 (r284776) +++ head/sys/conf/files Wed Jun 24 19:16:41 2015 (r284777) @@ -3254,6 +3254,7 @@ libkern/zlib.c optional crypto | geom_ net/altq/altq_cbq.c optional altq net/altq/altq_cdnr.c optional altq net/altq/altq_hfsc.c optional altq +net/altq/altq_fairq.c optional altq net/altq/altq_priq.c optional altq net/altq/altq_red.c optional altq net/altq/altq_rio.c optional altq Modified: head/sys/conf/options ============================================================================== --- head/sys/conf/options Wed Jun 24 19:06:54 2015 (r284776) +++ head/sys/conf/options Wed Jun 24 19:16:41 2015 (r284777) @@ -389,6 +389,7 @@ ALTQ_CBQ opt_altq.h ALTQ_CDNR opt_altq.h ALTQ_DEBUG opt_altq.h ALTQ_HFSC opt_altq.h +ALTQ_FAIRQ opt_altq.h ALTQ_NOPCC opt_altq.h ALTQ_PRIQ opt_altq.h ALTQ_RED opt_altq.h Modified: head/sys/net/altq/altq.h ============================================================================== --- head/sys/net/altq/altq.h Wed Jun 24 19:06:54 2015 (r284776) +++ head/sys/net/altq/altq.h Wed Jun 24 19:16:41 2015 (r284777) @@ -63,7 +63,8 @@ #define ALTQT_BLUE 10 /* blue */ #define ALTQT_PRIQ 11 /* priority queue */ #define ALTQT_JOBS 12 /* JoBS */ -#define ALTQT_MAX 13 /* should be max discipline type + 1 */ +#define ALTQT_FAIRQ 13 /* fairq */ +#define ALTQT_MAX 14 /* should be max discipline type + 1 */ #ifdef ALTQ3_COMPAT struct altqreq { Added: head/sys/net/altq/altq_fairq.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/net/altq/altq_fairq.c Wed Jun 24 19:16:41 2015 (r284777) @@ -0,0 +1,889 @@ +/* + * 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 $ + * $FreeBSD$ + */ +/* + * 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 <net/altq/altq.h> +#include <net/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); + + + pif = malloc(sizeof(struct fairq_if), + M_DEVBUF, M_WAITOK | M_ZERO); + 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; + +#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 */ + IFQ_LOCK(cl->cl_pif->pif_ifq); + if (cl->cl_head) + fairq_purgeq(cl); + IFQ_UNLOCK(cl->cl_pif->pif_ifq); +#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 { + cl = malloc(sizeof(struct fairq_class), + M_DEVBUF, M_WAITOK | M_ZERO); + cl->cl_nbuckets = nbuckets; + cl->cl_nbucket_mask = nbuckets - 1; + + cl->cl_buckets = malloc( + sizeof(struct fairq_bucket) * cl->cl_nbuckets, + M_DEVBUF, M_WAITOK | M_ZERO); + cl->cl_head = NULL; + } + + pif->pif_classes[pri] = cl; + if (flags & FARF_DEFAULTCLASS) + pif->pif_default = cl; + if (qlimit == 0) *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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