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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later |
4e5ef149 SS |
2 | * Copyright © 2019 VMware, Inc. */ |
3 | ||
4 | #include <linux/pkt_sched.h> | |
5 | ||
6 | #include "alloc-util.h" | |
7 | #include "conf-parser.h" | |
8 | #include "netlink-util.h" | |
9 | #include "parse-util.h" | |
10 | #include "qdisc.h" | |
11 | #include "string-util.h" | |
c03ef420 | 12 | #include "strv.h" |
4e5ef149 | 13 | |
18de0969 YW |
14 | static int fair_queueing_controlled_delay_init(QDisc *qdisc) { |
15 | FairQueueingControlledDelay *fqcd; | |
ac810b75 YW |
16 | |
17 | assert(qdisc); | |
18 | ||
19 | fqcd = FQ_CODEL(qdisc); | |
20 | ||
21 | fqcd->memory_limit = UINT32_MAX; | |
22 | fqcd->ce_threshold_usec = USEC_INFINITY; | |
23 | fqcd->ecn = -1; | |
24 | ||
25 | return 0; | |
26 | } | |
27 | ||
18de0969 YW |
28 | static int fair_queueing_controlled_delay_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req) { |
29 | FairQueueingControlledDelay *fqcd; | |
4e5ef149 SS |
30 | int r; |
31 | ||
32 | assert(link); | |
e8c17dc0 | 33 | assert(qdisc); |
4e5ef149 SS |
34 | assert(req); |
35 | ||
16924f54 | 36 | assert_se(fqcd = FQ_CODEL(qdisc)); |
e8c17dc0 | 37 | |
92c7593f | 38 | r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "fq_codel"); |
4e5ef149 | 39 | if (r < 0) |
16924f54 | 40 | return r; |
4e5ef149 | 41 | |
ac810b75 YW |
42 | if (fqcd->packet_limit > 0) { |
43 | r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_LIMIT, fqcd->packet_limit); | |
44 | if (r < 0) | |
16924f54 | 45 | return r; |
ac810b75 YW |
46 | } |
47 | ||
48 | if (fqcd->flows > 0) { | |
49 | r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_FLOWS, fqcd->flows); | |
50 | if (r < 0) | |
16924f54 | 51 | return r; |
ac810b75 YW |
52 | } |
53 | ||
54 | if (fqcd->quantum > 0) { | |
55 | r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_QUANTUM, fqcd->quantum); | |
56 | if (r < 0) | |
16924f54 | 57 | return r; |
ac810b75 YW |
58 | } |
59 | ||
60 | if (fqcd->interval_usec > 0) { | |
61 | r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_INTERVAL, fqcd->interval_usec); | |
62 | if (r < 0) | |
16924f54 | 63 | return r; |
ac810b75 YW |
64 | } |
65 | ||
66 | if (fqcd->target_usec > 0) { | |
67 | r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_TARGET, fqcd->target_usec); | |
68 | if (r < 0) | |
16924f54 | 69 | return r; |
ac810b75 YW |
70 | } |
71 | ||
72 | if (fqcd->ecn >= 0) { | |
73 | r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_ECN, fqcd->ecn); | |
74 | if (r < 0) | |
16924f54 | 75 | return r; |
ac810b75 YW |
76 | } |
77 | ||
78 | if (fqcd->ce_threshold_usec != USEC_INFINITY) { | |
79 | r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_CE_THRESHOLD, fqcd->ce_threshold_usec); | |
80 | if (r < 0) | |
16924f54 | 81 | return r; |
ac810b75 YW |
82 | } |
83 | ||
84 | if (fqcd->memory_limit != UINT32_MAX) { | |
85 | r = sd_netlink_message_append_u32(req, TCA_FQ_CODEL_MEMORY_LIMIT, fqcd->memory_limit); | |
86 | if (r < 0) | |
16924f54 | 87 | return r; |
ac810b75 | 88 | } |
4e5ef149 SS |
89 | |
90 | r = sd_netlink_message_close_container(req); | |
91 | if (r < 0) | |
16924f54 | 92 | return r; |
4e5ef149 SS |
93 | |
94 | return 0; | |
95 | } | |
96 | ||
18de0969 | 97 | int config_parse_fair_queueing_controlled_delay_u32( |
4e5ef149 SS |
98 | const char *unit, |
99 | const char *filename, | |
100 | unsigned line, | |
101 | const char *section, | |
102 | unsigned section_line, | |
103 | const char *lvalue, | |
104 | int ltype, | |
105 | const char *rvalue, | |
106 | void *data, | |
107 | void *userdata) { | |
108 | ||
109 | _cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL; | |
18de0969 | 110 | FairQueueingControlledDelay *fqcd; |
99534007 | 111 | Network *network = ASSERT_PTR(data); |
ac810b75 | 112 | uint32_t *p; |
4e5ef149 SS |
113 | int r; |
114 | ||
115 | assert(filename); | |
116 | assert(lvalue); | |
117 | assert(rvalue); | |
4e5ef149 | 118 | |
e8c17dc0 YW |
119 | r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc); |
120 | if (r == -ENOMEM) | |
121 | return log_oom(); | |
d96edb2c YW |
122 | if (r < 0) { |
123 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
124 | "More than one kind of queueing discipline, ignoring assignment: %m"); | |
125 | return 0; | |
126 | } | |
e8c17dc0 YW |
127 | |
128 | fqcd = FQ_CODEL(qdisc); | |
4e5ef149 | 129 | |
18de0969 | 130 | if (streq(lvalue, "PacketLimit")) |
ac810b75 | 131 | p = &fqcd->packet_limit; |
18de0969 | 132 | else if (streq(lvalue, "Flows")) |
ac810b75 YW |
133 | p = &fqcd->flows; |
134 | else | |
04499a70 | 135 | assert_not_reached(); |
ac810b75 | 136 | |
4e5ef149 | 137 | if (isempty(rvalue)) { |
ac810b75 | 138 | *p = 0; |
4e5ef149 | 139 | |
0132453c | 140 | TAKE_PTR(qdisc); |
4e5ef149 SS |
141 | return 0; |
142 | } | |
143 | ||
ac810b75 | 144 | r = safe_atou32(rvalue, p); |
4e5ef149 | 145 | if (r < 0) { |
d96edb2c | 146 | log_syntax(unit, LOG_WARNING, filename, line, r, |
4e5ef149 SS |
147 | "Failed to parse '%s=', ignoring assignment: %s", |
148 | lvalue, rvalue); | |
149 | return 0; | |
150 | } | |
151 | ||
0132453c | 152 | TAKE_PTR(qdisc); |
4e5ef149 SS |
153 | |
154 | return 0; | |
155 | } | |
e8c17dc0 | 156 | |
18de0969 | 157 | int config_parse_fair_queueing_controlled_delay_usec( |
ac810b75 YW |
158 | const char *unit, |
159 | const char *filename, | |
160 | unsigned line, | |
161 | const char *section, | |
162 | unsigned section_line, | |
163 | const char *lvalue, | |
164 | int ltype, | |
165 | const char *rvalue, | |
166 | void *data, | |
167 | void *userdata) { | |
168 | ||
169 | _cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL; | |
18de0969 | 170 | FairQueueingControlledDelay *fqcd; |
99534007 | 171 | Network *network = ASSERT_PTR(data); |
ac810b75 YW |
172 | usec_t *p; |
173 | int r; | |
174 | ||
175 | assert(filename); | |
176 | assert(lvalue); | |
177 | assert(rvalue); | |
ac810b75 YW |
178 | |
179 | r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc); | |
180 | if (r == -ENOMEM) | |
181 | return log_oom(); | |
d96edb2c YW |
182 | if (r < 0) { |
183 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
184 | "More than one kind of queueing discipline, ignoring assignment: %m"); | |
185 | return 0; | |
186 | } | |
ac810b75 YW |
187 | |
188 | fqcd = FQ_CODEL(qdisc); | |
189 | ||
18de0969 | 190 | if (streq(lvalue, "TargetSec")) |
ac810b75 | 191 | p = &fqcd->target_usec; |
18de0969 | 192 | else if (streq(lvalue, "IntervalSec")) |
ac810b75 | 193 | p = &fqcd->interval_usec; |
18de0969 | 194 | else if (streq(lvalue, "CEThresholdSec")) |
ac810b75 YW |
195 | p = &fqcd->ce_threshold_usec; |
196 | else | |
04499a70 | 197 | assert_not_reached(); |
ac810b75 YW |
198 | |
199 | if (isempty(rvalue)) { | |
18de0969 | 200 | if (streq(lvalue, "CEThresholdSec")) |
ac810b75 YW |
201 | *p = USEC_INFINITY; |
202 | else | |
203 | *p = 0; | |
204 | ||
0132453c | 205 | TAKE_PTR(qdisc); |
ac810b75 YW |
206 | return 0; |
207 | } | |
208 | ||
209 | r = parse_sec(rvalue, p); | |
210 | if (r < 0) { | |
d96edb2c | 211 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ac810b75 YW |
212 | "Failed to parse '%s=', ignoring assignment: %s", |
213 | lvalue, rvalue); | |
214 | return 0; | |
215 | } | |
216 | ||
0132453c | 217 | TAKE_PTR(qdisc); |
ac810b75 YW |
218 | |
219 | return 0; | |
220 | } | |
221 | ||
18de0969 | 222 | int config_parse_fair_queueing_controlled_delay_bool( |
ac810b75 YW |
223 | const char *unit, |
224 | const char *filename, | |
225 | unsigned line, | |
226 | const char *section, | |
227 | unsigned section_line, | |
228 | const char *lvalue, | |
229 | int ltype, | |
230 | const char *rvalue, | |
231 | void *data, | |
232 | void *userdata) { | |
233 | ||
234 | _cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL; | |
18de0969 | 235 | FairQueueingControlledDelay *fqcd; |
99534007 | 236 | Network *network = ASSERT_PTR(data); |
ac810b75 YW |
237 | int r; |
238 | ||
239 | assert(filename); | |
240 | assert(lvalue); | |
241 | assert(rvalue); | |
ac810b75 YW |
242 | |
243 | r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc); | |
244 | if (r == -ENOMEM) | |
245 | return log_oom(); | |
d96edb2c YW |
246 | if (r < 0) { |
247 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
248 | "More than one kind of queueing discipline, ignoring assignment: %m"); | |
249 | return 0; | |
250 | } | |
ac810b75 YW |
251 | |
252 | fqcd = FQ_CODEL(qdisc); | |
253 | ||
b71a721f | 254 | r = parse_tristate(rvalue, &fqcd->ecn); |
ac810b75 | 255 | if (r < 0) { |
d96edb2c | 256 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ac810b75 YW |
257 | "Failed to parse '%s=', ignoring assignment: %s", |
258 | lvalue, rvalue); | |
259 | return 0; | |
260 | } | |
261 | ||
0132453c | 262 | TAKE_PTR(qdisc); |
ac810b75 YW |
263 | |
264 | return 0; | |
265 | } | |
266 | ||
18de0969 | 267 | int config_parse_fair_queueing_controlled_delay_size( |
ac810b75 YW |
268 | const char *unit, |
269 | const char *filename, | |
270 | unsigned line, | |
271 | const char *section, | |
272 | unsigned section_line, | |
273 | const char *lvalue, | |
274 | int ltype, | |
275 | const char *rvalue, | |
276 | void *data, | |
277 | void *userdata) { | |
278 | ||
279 | _cleanup_(qdisc_free_or_set_invalidp) QDisc *qdisc = NULL; | |
18de0969 | 280 | FairQueueingControlledDelay *fqcd; |
99534007 | 281 | Network *network = ASSERT_PTR(data); |
ac810b75 YW |
282 | uint64_t sz; |
283 | uint32_t *p; | |
284 | int r; | |
285 | ||
286 | assert(filename); | |
287 | assert(lvalue); | |
288 | assert(rvalue); | |
ac810b75 YW |
289 | |
290 | r = qdisc_new_static(QDISC_KIND_FQ_CODEL, network, filename, section_line, &qdisc); | |
291 | if (r == -ENOMEM) | |
292 | return log_oom(); | |
d96edb2c YW |
293 | if (r < 0) { |
294 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
295 | "More than one kind of queueing discipline, ignoring assignment: %m"); | |
296 | return 0; | |
297 | } | |
ac810b75 YW |
298 | |
299 | fqcd = FQ_CODEL(qdisc); | |
300 | ||
c03ef420 | 301 | if (STR_IN_SET(lvalue, "MemoryLimitBytes", "MemoryLimit")) |
ac810b75 | 302 | p = &fqcd->memory_limit; |
c03ef420 | 303 | else if (STR_IN_SET(lvalue, "QuantumBytes", "Quantum")) |
ac810b75 YW |
304 | p = &fqcd->quantum; |
305 | else | |
04499a70 | 306 | assert_not_reached(); |
ac810b75 YW |
307 | |
308 | if (isempty(rvalue)) { | |
c03ef420 | 309 | if (STR_IN_SET(lvalue, "MemoryLimitBytes", "MemoryLimit")) |
ac810b75 YW |
310 | *p = UINT32_MAX; |
311 | else | |
312 | *p = 0; | |
313 | ||
0132453c | 314 | TAKE_PTR(qdisc); |
ac810b75 YW |
315 | return 0; |
316 | } | |
317 | ||
318 | r = parse_size(rvalue, 1024, &sz); | |
319 | if (r < 0) { | |
d96edb2c | 320 | log_syntax(unit, LOG_WARNING, filename, line, r, |
ac810b75 YW |
321 | "Failed to parse '%s=', ignoring assignment: %s", |
322 | lvalue, rvalue); | |
323 | return 0; | |
324 | } | |
325 | if (sz >= UINT32_MAX) { | |
d96edb2c | 326 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
ac810b75 YW |
327 | "Specified '%s=' is too large, ignoring assignment: %s", |
328 | lvalue, rvalue); | |
329 | return 0; | |
330 | } | |
331 | ||
332 | *p = sz; | |
0132453c | 333 | TAKE_PTR(qdisc); |
ac810b75 YW |
334 | |
335 | return 0; | |
336 | } | |
337 | ||
e8c17dc0 | 338 | const QDiscVTable fq_codel_vtable = { |
18de0969 | 339 | .object_size = sizeof(FairQueueingControlledDelay), |
e8c17dc0 | 340 | .tca_kind = "fq_codel", |
18de0969 YW |
341 | .init = fair_queueing_controlled_delay_init, |
342 | .fill_message = fair_queueing_controlled_delay_fill_message, | |
e8c17dc0 | 343 | }; |