4 * Copyright (C) 2012,2015 Eric Dumazet <edumazet@google.com>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The names of the authors may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * Alternatively, provided that this notice is retained in full, this
19 * software may be distributed under the terms of the GNU General
20 * Public License ("GPL") version 2, in which case the provisions of the
21 * GPL apply INSTEAD OF those given above.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
42 #include <sys/socket.h>
43 #include <netinet/in.h>
44 #include <arpa/inet.h>
50 static void explain(void)
53 "Usage: ... fq_codel [ limit PACKETS ] [ flows NUMBER ]\n"
54 "[ memory_limit BYTES ]\n"
55 "[ target TIME ] [ interval TIME ]\n"
56 "[ quantum BYTES ] [ [no]ecn ]\n"
57 "[ ce_threshold TIME ]\n"
58 "[ drop_batch SIZE ]\n");
61 static int fq_codel_parse_opt(struct qdisc_util
*qu
, int argc
, char **argv
,
62 struct nlmsghdr
*n
, const char *dev
)
64 unsigned int drop_batch
= 0;
65 unsigned int limit
= 0;
66 unsigned int flows
= 0;
67 unsigned int target
= 0;
68 unsigned int interval
= 0;
69 unsigned int quantum
= 0;
70 unsigned int ce_threshold
= ~0U;
71 unsigned int memory
= ~0U;
76 if (strcmp(*argv
, "limit") == 0) {
78 if (get_unsigned(&limit
, *argv
, 0)) {
79 fprintf(stderr
, "Illegal \"limit\"\n");
82 } else if (strcmp(*argv
, "flows") == 0) {
84 if (get_unsigned(&flows
, *argv
, 0)) {
85 fprintf(stderr
, "Illegal \"flows\"\n");
88 } else if (strcmp(*argv
, "quantum") == 0) {
90 if (get_unsigned(&quantum
, *argv
, 0)) {
91 fprintf(stderr
, "Illegal \"quantum\"\n");
94 } else if (strcmp(*argv
, "drop_batch") == 0) {
96 if (get_unsigned(&drop_batch
, *argv
, 0)) {
97 fprintf(stderr
, "Illegal \"drop_batch\"\n");
100 } else if (strcmp(*argv
, "target") == 0) {
102 if (get_time(&target
, *argv
)) {
103 fprintf(stderr
, "Illegal \"target\"\n");
106 } else if (strcmp(*argv
, "ce_threshold") == 0) {
108 if (get_time(&ce_threshold
, *argv
)) {
109 fprintf(stderr
, "Illegal \"ce_threshold\"\n");
112 } else if (strcmp(*argv
, "memory_limit") == 0) {
114 if (get_size(&memory
, *argv
)) {
115 fprintf(stderr
, "Illegal \"memory_limit\"\n");
118 } else if (strcmp(*argv
, "interval") == 0) {
120 if (get_time(&interval
, *argv
)) {
121 fprintf(stderr
, "Illegal \"interval\"\n");
124 } else if (strcmp(*argv
, "ecn") == 0) {
126 } else if (strcmp(*argv
, "noecn") == 0) {
128 } else if (strcmp(*argv
, "help") == 0) {
132 fprintf(stderr
, "What is \"%s\"?\n", *argv
);
139 tail
= addattr_nest(n
, 1024, TCA_OPTIONS
);
141 addattr_l(n
, 1024, TCA_FQ_CODEL_LIMIT
, &limit
, sizeof(limit
));
143 addattr_l(n
, 1024, TCA_FQ_CODEL_FLOWS
, &flows
, sizeof(flows
));
145 addattr_l(n
, 1024, TCA_FQ_CODEL_QUANTUM
, &quantum
, sizeof(quantum
));
147 addattr_l(n
, 1024, TCA_FQ_CODEL_INTERVAL
, &interval
, sizeof(interval
));
149 addattr_l(n
, 1024, TCA_FQ_CODEL_TARGET
, &target
, sizeof(target
));
151 addattr_l(n
, 1024, TCA_FQ_CODEL_ECN
, &ecn
, sizeof(ecn
));
152 if (ce_threshold
!= ~0U)
153 addattr_l(n
, 1024, TCA_FQ_CODEL_CE_THRESHOLD
,
154 &ce_threshold
, sizeof(ce_threshold
));
156 addattr_l(n
, 1024, TCA_FQ_CODEL_MEMORY_LIMIT
,
157 &memory
, sizeof(memory
));
159 addattr_l(n
, 1024, TCA_FQ_CODEL_DROP_BATCH_SIZE
, &drop_batch
, sizeof(drop_batch
));
161 addattr_nest_end(n
, tail
);
165 static int fq_codel_print_opt(struct qdisc_util
*qu
, FILE *f
, struct rtattr
*opt
)
167 struct rtattr
*tb
[TCA_FQ_CODEL_MAX
+ 1];
170 unsigned int interval
;
173 unsigned int quantum
;
174 unsigned int ce_threshold
;
175 unsigned int memory_limit
;
176 unsigned int drop_batch
;
183 parse_rtattr_nested(tb
, TCA_FQ_CODEL_MAX
, opt
);
185 if (tb
[TCA_FQ_CODEL_LIMIT
] &&
186 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_LIMIT
]) >= sizeof(__u32
)) {
187 limit
= rta_getattr_u32(tb
[TCA_FQ_CODEL_LIMIT
]);
188 print_uint(PRINT_ANY
, "limit", "limit %up ", limit
);
190 if (tb
[TCA_FQ_CODEL_FLOWS
] &&
191 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_FLOWS
]) >= sizeof(__u32
)) {
192 flows
= rta_getattr_u32(tb
[TCA_FQ_CODEL_FLOWS
]);
193 print_uint(PRINT_ANY
, "flows", "flows %u ", flows
);
195 if (tb
[TCA_FQ_CODEL_QUANTUM
] &&
196 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_QUANTUM
]) >= sizeof(__u32
)) {
197 quantum
= rta_getattr_u32(tb
[TCA_FQ_CODEL_QUANTUM
]);
198 print_uint(PRINT_ANY
, "quantum", "quantum %u ", quantum
);
200 if (tb
[TCA_FQ_CODEL_TARGET
] &&
201 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_TARGET
]) >= sizeof(__u32
)) {
202 target
= rta_getattr_u32(tb
[TCA_FQ_CODEL_TARGET
]);
203 print_uint(PRINT_JSON
, "target", NULL
, target
);
204 print_string(PRINT_FP
, NULL
, "target %s ",
205 sprint_time(target
, b1
));
207 if (tb
[TCA_FQ_CODEL_CE_THRESHOLD
] &&
208 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_CE_THRESHOLD
]) >= sizeof(__u32
)) {
209 ce_threshold
= rta_getattr_u32(tb
[TCA_FQ_CODEL_CE_THRESHOLD
]);
210 print_uint(PRINT_JSON
, "ce_threshold", NULL
, ce_threshold
);
211 print_string(PRINT_FP
, NULL
, "ce_threshold %s ",
212 sprint_time(ce_threshold
, b1
));
214 if (tb
[TCA_FQ_CODEL_INTERVAL
] &&
215 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_INTERVAL
]) >= sizeof(__u32
)) {
216 interval
= rta_getattr_u32(tb
[TCA_FQ_CODEL_INTERVAL
]);
217 print_uint(PRINT_JSON
, "interval", NULL
, interval
);
218 print_string(PRINT_FP
, NULL
, "interval %s ",
219 sprint_time(interval
, b1
));
221 if (tb
[TCA_FQ_CODEL_MEMORY_LIMIT
] &&
222 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_MEMORY_LIMIT
]) >= sizeof(__u32
)) {
223 memory_limit
= rta_getattr_u32(tb
[TCA_FQ_CODEL_MEMORY_LIMIT
]);
224 print_size(PRINT_ANY
, "memory_limit", "memory_limit %s ",
227 if (tb
[TCA_FQ_CODEL_ECN
] &&
228 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_ECN
]) >= sizeof(__u32
)) {
229 ecn
= rta_getattr_u32(tb
[TCA_FQ_CODEL_ECN
]);
231 print_bool(PRINT_ANY
, "ecn", "ecn ", true);
233 if (tb
[TCA_FQ_CODEL_DROP_BATCH_SIZE
] &&
234 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_DROP_BATCH_SIZE
]) >= sizeof(__u32
)) {
235 drop_batch
= rta_getattr_u32(tb
[TCA_FQ_CODEL_DROP_BATCH_SIZE
]);
237 print_uint(PRINT_ANY
, "drop_batch", "drop_batch %u ", drop_batch
);
243 static int fq_codel_print_xstats(struct qdisc_util
*qu
, FILE *f
,
244 struct rtattr
*xstats
)
246 struct tc_fq_codel_xstats _st
= {}, *st
;
253 st
= RTA_DATA(xstats
);
254 if (RTA_PAYLOAD(xstats
) < sizeof(*st
)) {
255 memcpy(&_st
, st
, RTA_PAYLOAD(xstats
));
258 if (st
->type
== TCA_FQ_CODEL_XSTATS_QDISC
) {
259 print_uint(PRINT_ANY
, "maxpacket", " maxpacket %u",
260 st
->qdisc_stats
.maxpacket
);
261 print_uint(PRINT_ANY
, "drop_overlimit", " drop_overlimit %u",
262 st
->qdisc_stats
.drop_overlimit
);
263 print_uint(PRINT_ANY
, "new_flow_count", " new_flow_count %u",
264 st
->qdisc_stats
.new_flow_count
);
265 print_uint(PRINT_ANY
, "ecn_mark", " ecn_mark %u",
266 st
->qdisc_stats
.ecn_mark
);
267 if (st
->qdisc_stats
.ce_mark
)
268 print_uint(PRINT_ANY
, "ce_mark", " ce_mark %u",
269 st
->qdisc_stats
.ce_mark
);
270 if (st
->qdisc_stats
.memory_usage
)
271 print_uint(PRINT_ANY
, "memory_used", " memory_used %u",
272 st
->qdisc_stats
.memory_usage
);
273 if (st
->qdisc_stats
.drop_overmemory
)
274 print_uint(PRINT_ANY
, "drop_overmemory", " drop_overmemory %u",
275 st
->qdisc_stats
.drop_overmemory
);
277 print_uint(PRINT_ANY
, "new_flows_len", " new_flows_len %u",
278 st
->qdisc_stats
.new_flows_len
);
279 print_uint(PRINT_ANY
, "old_flows_len", " old_flows_len %u",
280 st
->qdisc_stats
.old_flows_len
);
282 if (st
->type
== TCA_FQ_CODEL_XSTATS_CLASS
) {
283 print_int(PRINT_ANY
, "deficit", " deficit %d",
284 st
->class_stats
.deficit
);
285 print_uint(PRINT_ANY
, "count", " count %u",
286 st
->class_stats
.count
);
287 print_uint(PRINT_ANY
, "lastcount", " lastcount %u",
288 st
->class_stats
.lastcount
);
289 print_uint(PRINT_JSON
, "ldelay", NULL
,
290 st
->class_stats
.ldelay
);
291 print_string(PRINT_FP
, NULL
, " ldelay %s",
292 sprint_time(st
->class_stats
.ldelay
, b1
));
293 if (st
->class_stats
.dropping
) {
294 print_bool(PRINT_ANY
, "dropping", " dropping", true);
295 print_int(PRINT_JSON
, "drop_next", NULL
,
296 st
->class_stats
.drop_next
);
297 if (st
->class_stats
.drop_next
< 0)
298 print_string(PRINT_FP
, NULL
, " drop_next -%s",
299 sprint_time(-st
->class_stats
.drop_next
, b1
));
301 print_string(PRINT_FP
, NULL
, " drop_next %s",
302 sprint_time(st
->class_stats
.drop_next
, b1
));
310 struct qdisc_util fq_codel_qdisc_util
= {
312 .parse_qopt
= fq_codel_parse_opt
,
313 .print_qopt
= fq_codel_print_opt
,
314 .print_xstats
= fq_codel_print_xstats
,