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");
60 static int fq_codel_parse_opt(struct qdisc_util
*qu
, int argc
, char **argv
,
61 struct nlmsghdr
*n
, const char *dev
)
63 unsigned int limit
= 0;
64 unsigned int flows
= 0;
65 unsigned int target
= 0;
66 unsigned int interval
= 0;
67 unsigned int quantum
= 0;
68 unsigned int ce_threshold
= ~0U;
69 unsigned int memory
= ~0U;
74 if (strcmp(*argv
, "limit") == 0) {
76 if (get_unsigned(&limit
, *argv
, 0)) {
77 fprintf(stderr
, "Illegal \"limit\"\n");
80 } else if (strcmp(*argv
, "flows") == 0) {
82 if (get_unsigned(&flows
, *argv
, 0)) {
83 fprintf(stderr
, "Illegal \"flows\"\n");
86 } else if (strcmp(*argv
, "quantum") == 0) {
88 if (get_unsigned(&quantum
, *argv
, 0)) {
89 fprintf(stderr
, "Illegal \"quantum\"\n");
92 } else if (strcmp(*argv
, "target") == 0) {
94 if (get_time(&target
, *argv
)) {
95 fprintf(stderr
, "Illegal \"target\"\n");
98 } else if (strcmp(*argv
, "ce_threshold") == 0) {
100 if (get_time(&ce_threshold
, *argv
)) {
101 fprintf(stderr
, "Illegal \"ce_threshold\"\n");
104 } else if (strcmp(*argv
, "memory_limit") == 0) {
106 if (get_size(&memory
, *argv
)) {
107 fprintf(stderr
, "Illegal \"memory_limit\"\n");
110 } else if (strcmp(*argv
, "interval") == 0) {
112 if (get_time(&interval
, *argv
)) {
113 fprintf(stderr
, "Illegal \"interval\"\n");
116 } else if (strcmp(*argv
, "ecn") == 0) {
118 } else if (strcmp(*argv
, "noecn") == 0) {
120 } else if (strcmp(*argv
, "help") == 0) {
124 fprintf(stderr
, "What is \"%s\"?\n", *argv
);
131 tail
= addattr_nest(n
, 1024, TCA_OPTIONS
);
133 addattr_l(n
, 1024, TCA_FQ_CODEL_LIMIT
, &limit
, sizeof(limit
));
135 addattr_l(n
, 1024, TCA_FQ_CODEL_FLOWS
, &flows
, sizeof(flows
));
137 addattr_l(n
, 1024, TCA_FQ_CODEL_QUANTUM
, &quantum
, sizeof(quantum
));
139 addattr_l(n
, 1024, TCA_FQ_CODEL_INTERVAL
, &interval
, sizeof(interval
));
141 addattr_l(n
, 1024, TCA_FQ_CODEL_TARGET
, &target
, sizeof(target
));
143 addattr_l(n
, 1024, TCA_FQ_CODEL_ECN
, &ecn
, sizeof(ecn
));
144 if (ce_threshold
!= ~0U)
145 addattr_l(n
, 1024, TCA_FQ_CODEL_CE_THRESHOLD
,
146 &ce_threshold
, sizeof(ce_threshold
));
148 addattr_l(n
, 1024, TCA_FQ_CODEL_MEMORY_LIMIT
,
149 &memory
, sizeof(memory
));
151 addattr_nest_end(n
, tail
);
155 static int fq_codel_print_opt(struct qdisc_util
*qu
, FILE *f
, struct rtattr
*opt
)
157 struct rtattr
*tb
[TCA_FQ_CODEL_MAX
+ 1];
160 unsigned int interval
;
163 unsigned int quantum
;
164 unsigned int ce_threshold
;
165 unsigned int memory_limit
;
172 parse_rtattr_nested(tb
, TCA_FQ_CODEL_MAX
, opt
);
174 if (tb
[TCA_FQ_CODEL_LIMIT
] &&
175 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_LIMIT
]) >= sizeof(__u32
)) {
176 limit
= rta_getattr_u32(tb
[TCA_FQ_CODEL_LIMIT
]);
177 print_uint(PRINT_ANY
, "limit", "limit %up ", limit
);
179 if (tb
[TCA_FQ_CODEL_FLOWS
] &&
180 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_FLOWS
]) >= sizeof(__u32
)) {
181 flows
= rta_getattr_u32(tb
[TCA_FQ_CODEL_FLOWS
]);
182 print_uint(PRINT_ANY
, "flows", "flows %u ", flows
);
184 if (tb
[TCA_FQ_CODEL_QUANTUM
] &&
185 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_QUANTUM
]) >= sizeof(__u32
)) {
186 quantum
= rta_getattr_u32(tb
[TCA_FQ_CODEL_QUANTUM
]);
187 print_uint(PRINT_ANY
, "quantum", "quantum %u ", quantum
);
189 if (tb
[TCA_FQ_CODEL_TARGET
] &&
190 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_TARGET
]) >= sizeof(__u32
)) {
191 target
= rta_getattr_u32(tb
[TCA_FQ_CODEL_TARGET
]);
192 print_uint(PRINT_JSON
, "target", NULL
, target
);
193 print_string(PRINT_FP
, NULL
, "target %s ",
194 sprint_time(target
, b1
));
196 if (tb
[TCA_FQ_CODEL_CE_THRESHOLD
] &&
197 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_CE_THRESHOLD
]) >= sizeof(__u32
)) {
198 ce_threshold
= rta_getattr_u32(tb
[TCA_FQ_CODEL_CE_THRESHOLD
]);
199 print_uint(PRINT_JSON
, "ce_threshold", NULL
, ce_threshold
);
200 print_string(PRINT_FP
, NULL
, "ce_threshold %s ",
201 sprint_time(ce_threshold
, b1
));
203 if (tb
[TCA_FQ_CODEL_INTERVAL
] &&
204 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_INTERVAL
]) >= sizeof(__u32
)) {
205 interval
= rta_getattr_u32(tb
[TCA_FQ_CODEL_INTERVAL
]);
206 print_uint(PRINT_JSON
, "interval", NULL
, interval
);
207 print_string(PRINT_FP
, NULL
, "interval %s ",
208 sprint_time(interval
, b1
));
210 if (tb
[TCA_FQ_CODEL_MEMORY_LIMIT
] &&
211 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_MEMORY_LIMIT
]) >= sizeof(__u32
)) {
212 memory_limit
= rta_getattr_u32(tb
[TCA_FQ_CODEL_MEMORY_LIMIT
]);
213 print_uint(PRINT_JSON
, "memory_limit", NULL
, memory_limit
);
214 print_string(PRINT_FP
, NULL
, "memory_limit %s ",
215 sprint_size(memory_limit
, b1
));
217 if (tb
[TCA_FQ_CODEL_ECN
] &&
218 RTA_PAYLOAD(tb
[TCA_FQ_CODEL_ECN
]) >= sizeof(__u32
)) {
219 ecn
= rta_getattr_u32(tb
[TCA_FQ_CODEL_ECN
]);
221 print_bool(PRINT_ANY
, "ecn", "ecn ", true);
227 static int fq_codel_print_xstats(struct qdisc_util
*qu
, FILE *f
,
228 struct rtattr
*xstats
)
230 struct tc_fq_codel_xstats _st
= {}, *st
;
237 st
= RTA_DATA(xstats
);
238 if (RTA_PAYLOAD(xstats
) < sizeof(*st
)) {
239 memcpy(&_st
, st
, RTA_PAYLOAD(xstats
));
242 if (st
->type
== TCA_FQ_CODEL_XSTATS_QDISC
) {
243 print_uint(PRINT_ANY
, "maxpacket", " maxpacket %u",
244 st
->qdisc_stats
.maxpacket
);
245 print_uint(PRINT_ANY
, "drop_overlimit", " drop_overlimit %u",
246 st
->qdisc_stats
.drop_overlimit
);
247 print_uint(PRINT_ANY
, "new_flow_count", " new_flow_count %u",
248 st
->qdisc_stats
.new_flow_count
);
249 print_uint(PRINT_ANY
, "ecn_mark", " ecn_mark %u",
250 st
->qdisc_stats
.ecn_mark
);
251 if (st
->qdisc_stats
.ce_mark
)
252 print_uint(PRINT_ANY
, "ce_mark", " ce_mark %u",
253 st
->qdisc_stats
.ce_mark
);
254 if (st
->qdisc_stats
.memory_usage
)
255 print_uint(PRINT_ANY
, "memory_used", " memory_used %u",
256 st
->qdisc_stats
.memory_usage
);
257 if (st
->qdisc_stats
.drop_overmemory
)
258 print_uint(PRINT_ANY
, "drop_overmemory", " drop_overmemory %u",
259 st
->qdisc_stats
.drop_overmemory
);
260 print_uint(PRINT_ANY
, "new_flows_len", "\n new_flows_len %u",
261 st
->qdisc_stats
.new_flows_len
);
262 print_uint(PRINT_ANY
, "old_flows_len", " old_flows_len %u",
263 st
->qdisc_stats
.old_flows_len
);
265 if (st
->type
== TCA_FQ_CODEL_XSTATS_CLASS
) {
266 print_uint(PRINT_ANY
, "deficit", " deficit %u",
267 st
->class_stats
.deficit
);
268 print_uint(PRINT_ANY
, "count", " count %u",
269 st
->class_stats
.count
);
270 print_uint(PRINT_ANY
, "lastcount", " lastcount %u",
271 st
->class_stats
.lastcount
);
272 print_uint(PRINT_JSON
, "ldelay", NULL
,
273 st
->class_stats
.ldelay
);
274 print_string(PRINT_FP
, NULL
, " ldelay %s",
275 sprint_time(st
->class_stats
.ldelay
, b1
));
276 if (st
->class_stats
.dropping
) {
277 print_bool(PRINT_ANY
, "dropping", " dropping", true);
278 if (st
->class_stats
.drop_next
< 0)
279 print_string(PRINT_FP
, NULL
, " drop_next -%s",
280 sprint_time(-st
->class_stats
.drop_next
, b1
));
282 print_uint(PRINT_JSON
, "drop_next", NULL
,
283 st
->class_stats
.drop_next
);
284 print_string(PRINT_FP
, NULL
, " drop_next %s",
285 sprint_time(st
->class_stats
.drop_next
, b1
));
293 struct qdisc_util fq_codel_qdisc_util
= {
295 .parse_qopt
= fq_codel_parse_opt
,
296 .print_qopt
= fq_codel_print_opt
,
297 .print_xstats
= fq_codel_print_xstats
,