1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
4 * Common Applications Kept Enhanced -- CAKE
6 * Copyright (C) 2014-2018 Jonathan Morton <chromatix99@gmail.com>
7 * Copyright (C) 2017-2018 Toke Høiland-Jørgensen <toke@toke.dk>
16 #include <sys/socket.h>
17 #include <netinet/in.h>
18 #include <arpa/inet.h>
28 unsigned int interval;
31 static struct cake_preset presets[] = {
32 {"datacentre", 5, 100},
34 {"metro", 500, 10000},
35 {"regional", 1500, 30000},
36 {"internet", 5000, 100000},
37 {"oceanic", 15000, 300000},
38 {"satellite", 50000, 1000000},
39 {"interplanetary", 50000000, 1000000000},
42 static const char * diffserv_names[CAKE_DIFFSERV_MAX] = {
43 [CAKE_DIFFSERV_DIFFSERV3] = "diffserv3",
44 [CAKE_DIFFSERV_DIFFSERV4] = "diffserv4",
45 [CAKE_DIFFSERV_DIFFSERV8] = "diffserv8",
46 [CAKE_DIFFSERV_BESTEFFORT] = "besteffort",
47 [CAKE_DIFFSERV_PRECEDENCE] = "precedence",
50 static const char * flowmode_names[CAKE_FLOW_MAX] = {
51 [CAKE_FLOW_NONE] = "flowblind",
52 [CAKE_FLOW_SRC_IP] = "srchost",
53 [CAKE_FLOW_DST_IP] = "dsthost",
54 [CAKE_FLOW_HOSTS] = "hosts",
55 [CAKE_FLOW_FLOWS] = "flows",
56 [CAKE_FLOW_DUAL_SRC] = "dual-srchost",
57 [CAKE_FLOW_DUAL_DST] = "dual-dsthost",
58 [CAKE_FLOW_TRIPLE] = "triple-isolate",
61 static struct cake_preset *find_preset(char *argv)
65 for (i = 0; i < ARRAY_SIZE(presets); i++)
66 if (!strcmp(argv, presets[i].name))
71 static void explain(void)
74 "Usage: ... cake [ bandwidth RATE | unlimited* | autorate-ingress ]\n"
75 " [ rtt TIME | datacentre | lan | metro | regional |\n"
76 " internet* | oceanic | satellite | interplanetary ]\n"
77 " [ besteffort | diffserv8 | diffserv4 | diffserv3* ]\n"
78 " [ flowblind | srchost | dsthost | hosts | flows |\n"
79 " dual-srchost | dual-dsthost | triple-isolate* ]\n"
81 " [ wash | nowash* ]\n"
82 " [ split-gso* | no-split-gso ]\n"
83 " [ ack-filter | ack-filter-aggressive | no-ack-filter* ]\n"
84 " [ memlimit LIMIT ]\n"
86 " [ ptm | atm | noatm* ] [ overhead N | conservative | raw* ]\n"
87 " [ mpu N ] [ ingress | egress* ]\n"
88 " (* marks defaults)\n");
91 static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv,
92 struct nlmsghdr *n, const char *dev)
94 struct cake_preset *preset, *preset_set = NULL;
95 bool overhead_override = false;
96 bool overhead_set = false;
97 unsigned int interval = 0;
98 unsigned int diffserv = 0;
99 unsigned int memlimit = 0;
100 unsigned int target = 0;
117 if (strcmp(*argv, "bandwidth") == 0) {
119 if (get_rate64(&bandwidth, *argv)) {
120 fprintf(stderr, "Illegal \"bandwidth\"\n");
125 } else if (strcmp(*argv, "unlimited") == 0) {
129 } else if (strcmp(*argv, "autorate-ingress") == 0) {
131 } else if (strcmp(*argv, "rtt") == 0) {
133 if (get_time(&interval, *argv)) {
134 fprintf(stderr, "Illegal \"rtt\"\n");
137 target = interval / 20;
140 } else if ((preset = find_preset(*argv))) {
142 duparg(*argv, preset_set->name);
144 target = preset->target;
145 interval = preset->interval;
146 } else if (strcmp(*argv, "besteffort") == 0) {
147 diffserv = CAKE_DIFFSERV_BESTEFFORT;
148 } else if (strcmp(*argv, "precedence") == 0) {
149 diffserv = CAKE_DIFFSERV_PRECEDENCE;
150 } else if (strcmp(*argv, "diffserv8") == 0) {
151 diffserv = CAKE_DIFFSERV_DIFFSERV8;
152 } else if (strcmp(*argv, "diffserv4") == 0) {
153 diffserv = CAKE_DIFFSERV_DIFFSERV4;
154 } else if (strcmp(*argv, "diffserv") == 0) {
155 diffserv = CAKE_DIFFSERV_DIFFSERV4;
156 } else if (strcmp(*argv, "diffserv3") == 0) {
157 diffserv = CAKE_DIFFSERV_DIFFSERV3;
158 } else if (strcmp(*argv, "nowash") == 0) {
160 } else if (strcmp(*argv, "wash") == 0) {
162 } else if (strcmp(*argv, "split-gso") == 0) {
164 } else if (strcmp(*argv, "no-split-gso") == 0) {
166 } else if (strcmp(*argv, "flowblind") == 0) {
167 flowmode = CAKE_FLOW_NONE;
168 } else if (strcmp(*argv, "srchost") == 0) {
169 flowmode = CAKE_FLOW_SRC_IP;
170 } else if (strcmp(*argv, "dsthost") == 0) {
171 flowmode = CAKE_FLOW_DST_IP;
172 } else if (strcmp(*argv, "hosts") == 0) {
173 flowmode = CAKE_FLOW_HOSTS;
174 } else if (strcmp(*argv, "flows") == 0) {
175 flowmode = CAKE_FLOW_FLOWS;
176 } else if (strcmp(*argv, "dual-srchost") == 0) {
177 flowmode = CAKE_FLOW_DUAL_SRC;
178 } else if (strcmp(*argv, "dual-dsthost") == 0) {
179 flowmode = CAKE_FLOW_DUAL_DST;
180 } else if (strcmp(*argv, "triple-isolate") == 0) {
181 flowmode = CAKE_FLOW_TRIPLE;
182 } else if (strcmp(*argv, "nat") == 0) {
184 } else if (strcmp(*argv, "nonat") == 0) {
186 } else if (strcmp(*argv, "ptm") == 0) {
188 } else if (strcmp(*argv, "atm") == 0) {
190 } else if (strcmp(*argv, "noatm") == 0) {
192 } else if (strcmp(*argv, "raw") == 0) {
196 overhead_override = true;
197 } else if (strcmp(*argv, "conservative") == 0) {
199 * Deliberately over-estimate overhead:
200 * one whole ATM cell plus ATM framing.
201 * A safe choice if the actual overhead is unknown.
207 /* Various ADSL framing schemes, all over ATM cells */
208 } else if (strcmp(*argv, "ipoa-vcmux") == 0) {
212 } else if (strcmp(*argv, "ipoa-llcsnap") == 0) {
216 } else if (strcmp(*argv, "bridged-vcmux") == 0) {
220 } else if (strcmp(*argv, "bridged-llcsnap") == 0) {
224 } else if (strcmp(*argv, "pppoa-vcmux") == 0) {
228 } else if (strcmp(*argv, "pppoa-llc") == 0) {
232 } else if (strcmp(*argv, "pppoe-vcmux") == 0) {
236 } else if (strcmp(*argv, "pppoe-llcsnap") == 0) {
241 /* Typical VDSL2 framing schemes, both over PTM */
242 /* PTM has 64b/65b coding which absorbs some bandwidth */
243 } else if (strcmp(*argv, "pppoe-ptm") == 0) {
244 /* 2B PPP + 6B PPPoE + 6B dest MAC + 6B src MAC
245 * + 2B ethertype + 4B Frame Check Sequence
246 * + 1B Start of Frame (S) + 1B End of Frame (Ck)
247 * + 2B TC-CRC (PTM-FCS) = 30B
252 } else if (strcmp(*argv, "bridged-ptm") == 0) {
253 /* 6B dest MAC + 6B src MAC + 2B ethertype
254 * + 4B Frame Check Sequence
255 * + 1B Start of Frame (S) + 1B End of Frame (Ck)
256 * + 2B TC-CRC (PTM-FCS) = 22B
261 } else if (strcmp(*argv, "via-ethernet") == 0) {
263 * We used to use this flag to manually compensate for
264 * Linux including the Ethernet header on Ethernet-type
265 * interfaces, but not on IP-type interfaces.
267 * It is no longer needed, because Cake now adjusts for
268 * that automatically, and is thus ignored.
270 * It would be deleted entirely, but it appears in the
271 * stats output when the automatic compensation is
274 } else if (strcmp(*argv, "ethernet") == 0) {
275 /* ethernet pre-amble & interframe gap & FCS
276 * you may need to add vlan tag
282 /* Additional Ethernet-related overhead used by some ISPs */
283 } else if (strcmp(*argv, "ether-vlan") == 0) {
284 /* 802.1q VLAN tag - may be repeated */
289 * DOCSIS cable shapers account for Ethernet frame with FCS,
290 * but not interframe gap or preamble.
292 } else if (strcmp(*argv, "docsis") == 0) {
297 } else if (strcmp(*argv, "overhead") == 0) {
301 overhead = strtol(*argv, &p, 10);
302 if (!p || *p || !*argv ||
303 overhead < -64 || overhead > 256) {
305 "Illegal \"overhead\", valid range is -64 to 256\\n");
310 } else if (strcmp(*argv, "mpu") == 0) {
314 mpu = strtol(*argv, &p, 10);
315 if (!p || *p || !*argv || mpu < 0 || mpu > 256) {
317 "Illegal \"mpu\", valid range is 0 to 256\\n");
320 } else if (strcmp(*argv, "ingress") == 0) {
322 } else if (strcmp(*argv, "egress") == 0) {
324 } else if (strcmp(*argv, "no-ack-filter") == 0) {
325 ack_filter = CAKE_ACK_NONE;
326 } else if (strcmp(*argv, "ack-filter") == 0) {
327 ack_filter = CAKE_ACK_FILTER;
328 } else if (strcmp(*argv, "ack-filter-aggressive") == 0) {
329 ack_filter = CAKE_ACK_AGGRESSIVE;
330 } else if (strcmp(*argv, "memlimit") == 0) {
332 if (get_size(&memlimit, *argv)) {
334 "Illegal value for \"memlimit\": \"%s\"\n", *argv);
337 } else if (strcmp(*argv, "fwmark") == 0) {
341 if (get_u32(&fwm, *argv, 0)) {
343 "Illegal value for \"fwmark\": \"%s\"\n", *argv);
347 } else if (strcmp(*argv, "help") == 0) {
351 fprintf(stderr, "What is \"%s\"?\n", *argv);
358 tail = NLMSG_TAIL(n);
359 addattr_l(n, 1024, TCA_OPTIONS, NULL, 0);
360 if (bandwidth || unlimited)
361 addattr_l(n, 1024, TCA_CAKE_BASE_RATE64, &bandwidth,
364 addattr_l(n, 1024, TCA_CAKE_DIFFSERV_MODE, &diffserv,
367 addattr_l(n, 1024, TCA_CAKE_ATM, &atm, sizeof(atm));
369 addattr_l(n, 1024, TCA_CAKE_FLOW_MODE, &flowmode,
372 addattr_l(n, 1024, TCA_CAKE_OVERHEAD, &overhead,
374 if (overhead_override) {
375 unsigned int zero = 0;
377 addattr_l(n, 1024, TCA_CAKE_RAW, &zero, sizeof(zero));
380 addattr_l(n, 1024, TCA_CAKE_MPU, &mpu, sizeof(mpu));
382 addattr_l(n, 1024, TCA_CAKE_RTT, &interval, sizeof(interval));
384 addattr_l(n, 1024, TCA_CAKE_TARGET, &target, sizeof(target));
386 addattr_l(n, 1024, TCA_CAKE_AUTORATE, &autorate,
389 addattr_l(n, 1024, TCA_CAKE_MEMORY, &memlimit,
392 addattr_l(n, 1024, TCA_CAKE_FWMARK, &fwmark,
395 addattr_l(n, 1024, TCA_CAKE_NAT, &nat, sizeof(nat));
397 addattr_l(n, 1024, TCA_CAKE_WASH, &wash, sizeof(wash));
399 addattr_l(n, 1024, TCA_CAKE_SPLIT_GSO, &split_gso,
402 addattr_l(n, 1024, TCA_CAKE_INGRESS, &ingress, sizeof(ingress));
403 if (ack_filter != -1)
404 addattr_l(n, 1024, TCA_CAKE_ACK_FILTER, &ack_filter,
407 tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
411 static void cake_print_mode(unsigned int value, unsigned int max,
412 const char *key, const char **table)
414 if (value < max && table[value]) {
415 print_string(PRINT_ANY, key, "%s ", table[value]);
417 print_string(PRINT_JSON, key, NULL, "unknown");
418 print_string(PRINT_FP, NULL, "(?%s?)", key);
422 static int cake_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
424 struct rtattr *tb[TCA_CAKE_MAX + 1];
425 unsigned int interval = 0;
426 unsigned int memlimit = 0;
427 unsigned int fwmark = 0;
446 parse_rtattr_nested(tb, TCA_CAKE_MAX, opt);
448 if (tb[TCA_CAKE_BASE_RATE64] &&
449 RTA_PAYLOAD(tb[TCA_CAKE_BASE_RATE64]) >= sizeof(bandwidth)) {
450 bandwidth = rta_getattr_u64(tb[TCA_CAKE_BASE_RATE64]);
452 print_uint(PRINT_JSON, "bandwidth", NULL, bandwidth);
453 print_string(PRINT_FP, NULL, "bandwidth %s ",
454 sprint_rate(bandwidth, b1));
456 print_string(PRINT_ANY, "bandwidth", "bandwidth %s ",
459 if (tb[TCA_CAKE_AUTORATE] &&
460 RTA_PAYLOAD(tb[TCA_CAKE_AUTORATE]) >= sizeof(__u32)) {
461 autorate = rta_getattr_u32(tb[TCA_CAKE_AUTORATE]);
463 print_string(PRINT_ANY, "autorate", "%s ",
466 print_string(PRINT_ANY, "autorate", "(?autorate?) ",
469 if (tb[TCA_CAKE_DIFFSERV_MODE] &&
470 RTA_PAYLOAD(tb[TCA_CAKE_DIFFSERV_MODE]) >= sizeof(__u32)) {
471 cake_print_mode(rta_getattr_u32(tb[TCA_CAKE_DIFFSERV_MODE]),
472 CAKE_DIFFSERV_MAX, "diffserv", diffserv_names);
474 if (tb[TCA_CAKE_FLOW_MODE] &&
475 RTA_PAYLOAD(tb[TCA_CAKE_FLOW_MODE]) >= sizeof(__u32)) {
476 cake_print_mode(rta_getattr_u32(tb[TCA_CAKE_FLOW_MODE]),
477 CAKE_FLOW_MAX, "flowmode", flowmode_names);
480 if (tb[TCA_CAKE_NAT] &&
481 RTA_PAYLOAD(tb[TCA_CAKE_NAT]) >= sizeof(__u32)) {
482 nat = rta_getattr_u32(tb[TCA_CAKE_NAT]);
486 print_string(PRINT_FP, NULL, "nat ", NULL);
488 print_string(PRINT_FP, NULL, "nonat ", NULL);
489 print_bool(PRINT_JSON, "nat", NULL, nat);
491 if (tb[TCA_CAKE_WASH] &&
492 RTA_PAYLOAD(tb[TCA_CAKE_WASH]) >= sizeof(__u32)) {
493 wash = rta_getattr_u32(tb[TCA_CAKE_WASH]);
495 if (tb[TCA_CAKE_ATM] &&
496 RTA_PAYLOAD(tb[TCA_CAKE_ATM]) >= sizeof(__u32)) {
497 atm = rta_getattr_u32(tb[TCA_CAKE_ATM]);
499 if (tb[TCA_CAKE_OVERHEAD] &&
500 RTA_PAYLOAD(tb[TCA_CAKE_OVERHEAD]) >= sizeof(__s32)) {
501 overhead = *(__s32 *) RTA_DATA(tb[TCA_CAKE_OVERHEAD]);
503 if (tb[TCA_CAKE_MPU] &&
504 RTA_PAYLOAD(tb[TCA_CAKE_MPU]) >= sizeof(__u32)) {
505 mpu = rta_getattr_u32(tb[TCA_CAKE_MPU]);
507 if (tb[TCA_CAKE_INGRESS] &&
508 RTA_PAYLOAD(tb[TCA_CAKE_INGRESS]) >= sizeof(__u32)) {
509 ingress = rta_getattr_u32(tb[TCA_CAKE_INGRESS]);
511 if (tb[TCA_CAKE_ACK_FILTER] &&
512 RTA_PAYLOAD(tb[TCA_CAKE_ACK_FILTER]) >= sizeof(__u32)) {
513 ack_filter = rta_getattr_u32(tb[TCA_CAKE_ACK_FILTER]);
515 if (tb[TCA_CAKE_SPLIT_GSO] &&
516 RTA_PAYLOAD(tb[TCA_CAKE_SPLIT_GSO]) >= sizeof(__u32)) {
517 split_gso = rta_getattr_u32(tb[TCA_CAKE_SPLIT_GSO]);
519 if (tb[TCA_CAKE_RAW]) {
522 if (tb[TCA_CAKE_RTT] &&
523 RTA_PAYLOAD(tb[TCA_CAKE_RTT]) >= sizeof(__u32)) {
524 interval = rta_getattr_u32(tb[TCA_CAKE_RTT]);
526 if (tb[TCA_CAKE_FWMARK] &&
527 RTA_PAYLOAD(tb[TCA_CAKE_FWMARK]) >= sizeof(__u32)) {
528 fwmark = rta_getattr_u32(tb[TCA_CAKE_FWMARK]);
532 print_string(PRINT_FP, NULL, "wash ", NULL);
534 print_string(PRINT_FP, NULL, "nowash ", NULL);
535 print_bool(PRINT_JSON, "wash", NULL, wash);
538 print_string(PRINT_FP, NULL, "ingress ", NULL);
539 print_bool(PRINT_JSON, "ingress", NULL, ingress);
541 if (ack_filter == CAKE_ACK_AGGRESSIVE)
542 print_string(PRINT_ANY, "ack-filter", "ack-filter-%s ",
544 else if (ack_filter == CAKE_ACK_FILTER)
545 print_string(PRINT_ANY, "ack-filter", "ack-filter ", "enabled");
547 print_string(PRINT_ANY, "ack-filter", "no-ack-filter ", "disabled");
550 print_string(PRINT_FP, NULL, "split-gso ", NULL);
552 print_string(PRINT_FP, NULL, "no-split-gso ", NULL);
553 print_bool(PRINT_JSON, "split_gso", NULL, split_gso);
556 print_string(PRINT_FP, NULL, "rtt %s ",
557 sprint_time(interval, b2));
558 print_uint(PRINT_JSON, "rtt", NULL, interval);
561 print_string(PRINT_FP, NULL, "raw ", NULL);
562 print_bool(PRINT_JSON, "raw", NULL, raw);
564 if (atm == CAKE_ATM_ATM)
565 print_string(PRINT_ANY, "atm", "%s ", "atm");
566 else if (atm == CAKE_ATM_PTM)
567 print_string(PRINT_ANY, "atm", "%s ", "ptm");
569 print_string(PRINT_ANY, "atm", "%s ", "noatm");
571 print_int(PRINT_ANY, "overhead", "overhead %d ", overhead);
574 print_uint(PRINT_ANY, "mpu", "mpu %u ", mpu);
577 print_uint(PRINT_JSON, "memlimit", NULL, memlimit);
578 print_string(PRINT_FP, NULL, "memlimit %s",
579 sprint_size(memlimit, b1));
583 print_uint(PRINT_FP, NULL, "fwmark 0x%x ", fwmark);
584 print_0xhex(PRINT_JSON, "fwmark", NULL, fwmark);
589 static void cake_print_json_tin(struct rtattr **tstat)
591 #define PRINT_TSTAT_JSON(type, name, attr) if (tstat[TCA_CAKE_TIN_STATS_ ## attr]) \
592 print_u64(PRINT_JSON, name, NULL, \
593 rta_getattr_ ## type((struct rtattr *) \
594 tstat[TCA_CAKE_TIN_STATS_ ## attr]))
596 open_json_object(NULL);
597 PRINT_TSTAT_JSON(u64, "threshold_rate", THRESHOLD_RATE64);
598 PRINT_TSTAT_JSON(u64, "sent_bytes", SENT_BYTES64);
599 PRINT_TSTAT_JSON(u32, "backlog_bytes", BACKLOG_BYTES);
600 PRINT_TSTAT_JSON(u32, "target_us", TARGET_US);
601 PRINT_TSTAT_JSON(u32, "interval_us", INTERVAL_US);
602 PRINT_TSTAT_JSON(u32, "peak_delay_us", PEAK_DELAY_US);
603 PRINT_TSTAT_JSON(u32, "avg_delay_us", AVG_DELAY_US);
604 PRINT_TSTAT_JSON(u32, "base_delay_us", BASE_DELAY_US);
605 PRINT_TSTAT_JSON(u32, "sent_packets", SENT_PACKETS);
606 PRINT_TSTAT_JSON(u32, "way_indirect_hits", WAY_INDIRECT_HITS);
607 PRINT_TSTAT_JSON(u32, "way_misses", WAY_MISSES);
608 PRINT_TSTAT_JSON(u32, "way_collisions", WAY_COLLISIONS);
609 PRINT_TSTAT_JSON(u32, "drops", DROPPED_PACKETS);
610 PRINT_TSTAT_JSON(u32, "ecn_mark", ECN_MARKED_PACKETS);
611 PRINT_TSTAT_JSON(u32, "ack_drops", ACKS_DROPPED_PACKETS);
612 PRINT_TSTAT_JSON(u32, "sparse_flows", SPARSE_FLOWS);
613 PRINT_TSTAT_JSON(u32, "bulk_flows", BULK_FLOWS);
614 PRINT_TSTAT_JSON(u32, "unresponsive_flows", UNRESPONSIVE_FLOWS);
615 PRINT_TSTAT_JSON(u32, "max_pkt_len", MAX_SKBLEN);
616 PRINT_TSTAT_JSON(u32, "flow_quantum", FLOW_QUANTUM);
619 #undef PRINT_TSTAT_JSON
622 static int cake_print_xstats(struct qdisc_util *qu, FILE *f,
623 struct rtattr *xstats)
625 struct rtattr *st[TCA_CAKE_STATS_MAX + 1];
632 #define GET_STAT_U32(attr) rta_getattr_u32(st[TCA_CAKE_STATS_ ## attr])
633 #define GET_STAT_S32(attr) (*(__s32 *)RTA_DATA(st[TCA_CAKE_STATS_ ## attr]))
634 #define GET_STAT_U64(attr) rta_getattr_u64(st[TCA_CAKE_STATS_ ## attr])
636 parse_rtattr_nested(st, TCA_CAKE_STATS_MAX, xstats);
638 if (st[TCA_CAKE_STATS_MEMORY_USED] &&
639 st[TCA_CAKE_STATS_MEMORY_LIMIT]) {
640 print_string(PRINT_FP, NULL, " memory used: %s",
641 sprint_size(GET_STAT_U32(MEMORY_USED), b1));
643 print_string(PRINT_FP, NULL, " of %s\n",
644 sprint_size(GET_STAT_U32(MEMORY_LIMIT), b1));
646 print_uint(PRINT_JSON, "memory_used", NULL,
647 GET_STAT_U32(MEMORY_USED));
648 print_uint(PRINT_JSON, "memory_limit", NULL,
649 GET_STAT_U32(MEMORY_LIMIT));
652 if (st[TCA_CAKE_STATS_CAPACITY_ESTIMATE64]) {
653 print_string(PRINT_FP, NULL, " capacity estimate: %s\n",
654 sprint_rate(GET_STAT_U64(CAPACITY_ESTIMATE64), b1));
655 print_uint(PRINT_JSON, "capacity_estimate", NULL,
656 GET_STAT_U64(CAPACITY_ESTIMATE64));
659 if (st[TCA_CAKE_STATS_MIN_NETLEN] &&
660 st[TCA_CAKE_STATS_MAX_NETLEN]) {
661 print_uint(PRINT_ANY, "min_network_size",
662 " min/max network layer size: %12u",
663 GET_STAT_U32(MIN_NETLEN));
664 print_uint(PRINT_ANY, "max_network_size",
665 " /%8u\n", GET_STAT_U32(MAX_NETLEN));
668 if (st[TCA_CAKE_STATS_MIN_ADJLEN] &&
669 st[TCA_CAKE_STATS_MAX_ADJLEN]) {
670 print_uint(PRINT_ANY, "min_adj_size",
671 " min/max overhead-adjusted size: %8u",
672 GET_STAT_U32(MIN_ADJLEN));
673 print_uint(PRINT_ANY, "max_adj_size",
674 " /%8u\n", GET_STAT_U32(MAX_ADJLEN));
677 if (st[TCA_CAKE_STATS_AVG_NETOFF])
678 print_uint(PRINT_ANY, "avg_hdr_offset",
679 " average network hdr offset: %12u\n\n",
680 GET_STAT_U32(AVG_NETOFF));
683 if (st[TCA_CAKE_STATS_DEFICIT])
684 print_int(PRINT_ANY, "deficit", " deficit %u",
685 GET_STAT_S32(DEFICIT));
686 if (st[TCA_CAKE_STATS_COBALT_COUNT])
687 print_uint(PRINT_ANY, "count", " count %u",
688 GET_STAT_U32(COBALT_COUNT));
690 if (st[TCA_CAKE_STATS_DROPPING] && GET_STAT_U32(DROPPING)) {
691 print_bool(PRINT_ANY, "dropping", " dropping", true);
692 if (st[TCA_CAKE_STATS_DROP_NEXT_US]) {
693 int drop_next = GET_STAT_S32(DROP_NEXT_US);
696 print_string(PRINT_FP, NULL, " drop_next -%s",
697 sprint_time(drop_next, b1));
699 print_uint(PRINT_JSON, "drop_next", NULL,
701 print_string(PRINT_FP, NULL, " drop_next %s",
702 sprint_time(drop_next, b1));
707 if (st[TCA_CAKE_STATS_P_DROP]) {
708 print_uint(PRINT_ANY, "blue_prob", " blue_prob %u",
709 GET_STAT_U32(P_DROP));
710 if (st[TCA_CAKE_STATS_BLUE_TIMER_US]) {
711 int blue_timer = GET_STAT_S32(BLUE_TIMER_US);
713 if (blue_timer < 0) {
714 print_string(PRINT_FP, NULL, " blue_timer -%s",
715 sprint_time(blue_timer, b1));
717 print_uint(PRINT_JSON, "blue_timer", NULL,
719 print_string(PRINT_FP, NULL, " blue_timer %s",
720 sprint_time(blue_timer, b1));
729 if (st[TCA_CAKE_STATS_TIN_STATS]) {
730 struct rtattr *tstat[TC_CAKE_MAX_TINS][TCA_CAKE_TIN_STATS_MAX + 1];
731 struct rtattr *tins[TC_CAKE_MAX_TINS + 1];
734 parse_rtattr_nested(tins, TC_CAKE_MAX_TINS,
735 st[TCA_CAKE_STATS_TIN_STATS]);
737 for (i = 1; i <= TC_CAKE_MAX_TINS && tins[i]; i++) {
738 parse_rtattr_nested(tstat[i-1], TCA_CAKE_TIN_STATS_MAX,
746 if (is_json_context()) {
747 open_json_array(PRINT_JSON, "tins");
748 for (i = 0; i < num_tins; i++)
749 cake_print_json_tin(tstat[i]);
750 close_json_array(PRINT_JSON, NULL);
758 fprintf(f, " Bulk Best Effort Voice\n");
762 fprintf(f, " Bulk Best Effort Video Voice\n");
767 for (i = 0; i < num_tins; i++)
768 fprintf(f, " Tin %u", i);
772 #define GET_TSTAT(i, attr) (tstat[i][TCA_CAKE_TIN_STATS_ ## attr])
773 #define PRINT_TSTAT(name, attr, fmts, val) do { \
774 if (GET_TSTAT(0, attr)) { \
776 for (i = 0; i < num_tins; i++) \
777 fprintf(f, " %12" fmts, val); \
782 #define SPRINT_TSTAT(pfunc, type, name, attr) PRINT_TSTAT( \
783 name, attr, "s", sprint_ ## pfunc( \
784 rta_getattr_ ## type(GET_TSTAT(i, attr)), b1))
786 #define PRINT_TSTAT_U32(name, attr) PRINT_TSTAT( \
787 name, attr, "u", rta_getattr_u32(GET_TSTAT(i, attr)))
789 #define PRINT_TSTAT_U64(name, attr) PRINT_TSTAT( \
790 name, attr, "llu", rta_getattr_u64(GET_TSTAT(i, attr)))
792 SPRINT_TSTAT(rate, u64, " thresh ", THRESHOLD_RATE64);
793 SPRINT_TSTAT(time, u32, " target ", TARGET_US);
794 SPRINT_TSTAT(time, u32, " interval", INTERVAL_US);
795 SPRINT_TSTAT(time, u32, " pk_delay", PEAK_DELAY_US);
796 SPRINT_TSTAT(time, u32, " av_delay", AVG_DELAY_US);
797 SPRINT_TSTAT(time, u32, " sp_delay", BASE_DELAY_US);
798 SPRINT_TSTAT(size, u32, " backlog ", BACKLOG_BYTES);
800 PRINT_TSTAT_U32(" pkts ", SENT_PACKETS);
801 PRINT_TSTAT_U64(" bytes ", SENT_BYTES64);
803 PRINT_TSTAT_U32(" way_inds", WAY_INDIRECT_HITS);
804 PRINT_TSTAT_U32(" way_miss", WAY_MISSES);
805 PRINT_TSTAT_U32(" way_cols", WAY_COLLISIONS);
806 PRINT_TSTAT_U32(" drops ", DROPPED_PACKETS);
807 PRINT_TSTAT_U32(" marks ", ECN_MARKED_PACKETS);
808 PRINT_TSTAT_U32(" ack_drop", ACKS_DROPPED_PACKETS);
809 PRINT_TSTAT_U32(" sp_flows", SPARSE_FLOWS);
810 PRINT_TSTAT_U32(" bk_flows", BULK_FLOWS);
811 PRINT_TSTAT_U32(" un_flows", UNRESPONSIVE_FLOWS);
812 PRINT_TSTAT_U32(" max_len ", MAX_SKBLEN);
813 PRINT_TSTAT_U32(" quantum ", FLOW_QUANTUM);
818 #undef PRINT_TSTAT_U32
819 #undef PRINT_TSTAT_U64
824 struct qdisc_util cake_qdisc_util = {
826 .parse_qopt = cake_parse_opt,
827 .print_qopt = cake_print_opt,
828 .print_xstats = cake_print_xstats,