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abe529af | 1 | /* |
e09ee259 | 2 | * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc. |
abe529af BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | ||
9583bc14 | 19 | #include "ofproto/ofproto-dpif.h" |
5bee6e26 | 20 | #include "ofproto/ofproto-provider.h" |
abe529af BP |
21 | |
22 | #include <errno.h> | |
23 | ||
ccc09689 | 24 | #include "bfd.h" |
abe529af | 25 | #include "bond.h" |
daff3353 | 26 | #include "bundle.h" |
abe529af BP |
27 | #include "byte-order.h" |
28 | #include "connmgr.h" | |
29 | #include "coverage.h" | |
30 | #include "cfm.h" | |
31 | #include "dpif.h" | |
32 | #include "dynamic-string.h" | |
33 | #include "fail-open.h" | |
34 | #include "hmapx.h" | |
35 | #include "lacp.h" | |
75a75043 | 36 | #include "learn.h" |
abe529af | 37 | #include "mac-learning.h" |
816fd533 | 38 | #include "meta-flow.h" |
abe529af | 39 | #include "multipath.h" |
0a740f48 | 40 | #include "netdev-vport.h" |
abe529af BP |
41 | #include "netdev.h" |
42 | #include "netlink.h" | |
43 | #include "nx-match.h" | |
44 | #include "odp-util.h" | |
1ac7c9bd | 45 | #include "odp-execute.h" |
abe529af BP |
46 | #include "ofp-util.h" |
47 | #include "ofpbuf.h" | |
f25d0cf3 | 48 | #include "ofp-actions.h" |
31a19d69 | 49 | #include "ofp-parse.h" |
abe529af | 50 | #include "ofp-print.h" |
9d6ac44e | 51 | #include "ofproto-dpif-governor.h" |
29089a54 | 52 | #include "ofproto-dpif-ipfix.h" |
bae473fe | 53 | #include "ofproto-dpif-sflow.h" |
9583bc14 | 54 | #include "ofproto-dpif-xlate.h" |
abe529af | 55 | #include "poll-loop.h" |
0d085684 | 56 | #include "simap.h" |
27022416 | 57 | #include "smap.h" |
abe529af | 58 | #include "timer.h" |
b9ad7294 | 59 | #include "tunnel.h" |
6c1491fb | 60 | #include "unaligned.h" |
abe529af BP |
61 | #include "unixctl.h" |
62 | #include "vlan-bitmap.h" | |
63 | #include "vlog.h" | |
64 | ||
65 | VLOG_DEFINE_THIS_MODULE(ofproto_dpif); | |
66 | ||
abe529af | 67 | COVERAGE_DEFINE(ofproto_dpif_expired); |
abe529af | 68 | COVERAGE_DEFINE(facet_changed_rule); |
abe529af BP |
69 | COVERAGE_DEFINE(facet_revalidate); |
70 | COVERAGE_DEFINE(facet_unexpected); | |
9d6ac44e | 71 | COVERAGE_DEFINE(facet_suppress); |
abe529af | 72 | |
a088a1ff | 73 | struct flow_miss; |
ac35f9c8 | 74 | struct facet; |
abe529af | 75 | |
29901626 | 76 | static struct rule_dpif *rule_dpif_lookup(struct ofproto_dpif *, |
bcd2633a JP |
77 | const struct flow *, |
78 | struct flow_wildcards *wc); | |
abe529af | 79 | |
7e741ffb | 80 | static void rule_get_stats(struct rule *, uint64_t *packets, uint64_t *bytes); |
b0f7b9b5 BP |
81 | static void rule_invalidate(const struct rule_dpif *); |
82 | ||
abe529af | 83 | static void mirror_destroy(struct ofmirror *); |
9d24de3b JP |
84 | static void update_mirror_stats(struct ofproto_dpif *ofproto, |
85 | mirror_mask_t mirrors, | |
86 | uint64_t packets, uint64_t bytes); | |
abe529af | 87 | |
abe529af | 88 | static void bundle_remove(struct ofport *); |
7bde8dd8 | 89 | static void bundle_update(struct ofbundle *); |
abe529af BP |
90 | static void bundle_destroy(struct ofbundle *); |
91 | static void bundle_del_port(struct ofport_dpif *); | |
92 | static void bundle_run(struct ofbundle *); | |
93 | static void bundle_wait(struct ofbundle *); | |
33158a18 | 94 | |
21f7563c JP |
95 | static void stp_run(struct ofproto_dpif *ofproto); |
96 | static void stp_wait(struct ofproto_dpif *ofproto); | |
851bf71d EJ |
97 | static int set_stp_port(struct ofport *, |
98 | const struct ofproto_port_stp_settings *); | |
21f7563c | 99 | |
6a7e895f BP |
100 | static void compose_slow_path(const struct ofproto_dpif *, const struct flow *, |
101 | enum slow_path_reason, | |
102 | uint64_t *stub, size_t stub_size, | |
103 | const struct nlattr **actionsp, | |
104 | size_t *actions_lenp); | |
105 | ||
106 | /* A subfacet (see "struct subfacet" below) has three possible installation | |
107 | * states: | |
108 | * | |
109 | * - SF_NOT_INSTALLED: Not installed in the datapath. This will only be the | |
110 | * case just after the subfacet is created, just before the subfacet is | |
111 | * destroyed, or if the datapath returns an error when we try to install a | |
112 | * subfacet. | |
113 | * | |
114 | * - SF_FAST_PATH: The subfacet's actions are installed in the datapath. | |
115 | * | |
116 | * - SF_SLOW_PATH: An action that sends every packet for the subfacet through | |
117 | * ofproto_dpif is installed in the datapath. | |
118 | */ | |
119 | enum subfacet_path { | |
120 | SF_NOT_INSTALLED, /* No datapath flow for this subfacet. */ | |
121 | SF_FAST_PATH, /* Full actions are installed. */ | |
122 | SF_SLOW_PATH, /* Send-to-userspace action is installed. */ | |
123 | }; | |
124 | ||
5f5fbd17 BP |
125 | /* A dpif flow and actions associated with a facet. |
126 | * | |
127 | * See also the large comment on struct facet. */ | |
128 | struct subfacet { | |
129 | /* Owners. */ | |
130 | struct hmap_node hmap_node; /* In struct ofproto_dpif 'subfacets' list. */ | |
131 | struct list list_node; /* In struct facet's 'facets' list. */ | |
132 | struct facet *facet; /* Owning facet. */ | |
04d08d54 | 133 | struct dpif_backer *backer; /* Owning backer. */ |
5f5fbd17 | 134 | |
5f5fbd17 BP |
135 | enum odp_key_fitness key_fitness; |
136 | struct nlattr *key; | |
137 | int key_len; | |
138 | ||
139 | long long int used; /* Time last used; time created if not used. */ | |
655ab909 | 140 | long long int created; /* Time created. */ |
5f5fbd17 BP |
141 | |
142 | uint64_t dp_packet_count; /* Last known packet count in the datapath. */ | |
143 | uint64_t dp_byte_count; /* Last known byte count in the datapath. */ | |
144 | ||
6a7e895f | 145 | enum subfacet_path path; /* Installed in datapath? */ |
5f5fbd17 BP |
146 | }; |
147 | ||
1d85f9e5 JP |
148 | #define SUBFACET_DESTROY_MAX_BATCH 50 |
149 | ||
a088a1ff | 150 | static struct subfacet *subfacet_create(struct facet *, struct flow_miss *miss, |
459b16a1 | 151 | long long int now); |
04d08d54 | 152 | static struct subfacet *subfacet_find(struct dpif_backer *, |
acf60855 | 153 | const struct nlattr *key, size_t key_len, |
9566abf9 | 154 | uint32_t key_hash); |
5f5fbd17 BP |
155 | static void subfacet_destroy(struct subfacet *); |
156 | static void subfacet_destroy__(struct subfacet *); | |
04d08d54 | 157 | static void subfacet_destroy_batch(struct dpif_backer *, |
1d85f9e5 | 158 | struct subfacet **, int n); |
5f5fbd17 BP |
159 | static void subfacet_reset_dp_stats(struct subfacet *, |
160 | struct dpif_flow_stats *); | |
5f5fbd17 BP |
161 | static void subfacet_update_stats(struct subfacet *, |
162 | const struct dpif_flow_stats *); | |
5f5fbd17 | 163 | static int subfacet_install(struct subfacet *, |
4dff9097 EJ |
164 | const struct ofpbuf *odp_actions, |
165 | struct dpif_flow_stats *); | |
5f5fbd17 BP |
166 | static void subfacet_uninstall(struct subfacet *); |
167 | ||
bcd2633a | 168 | /* A unique, non-overlapping instantiation of an OpenFlow flow. |
b0f7b9b5 BP |
169 | * |
170 | * A facet associates a "struct flow", which represents the Open vSwitch | |
bcd2633a JP |
171 | * userspace idea of an exact-match flow, with one or more subfacets. |
172 | * While the facet is created based on an exact-match flow, it is stored | |
173 | * within the ofproto based on the wildcards that could be expressed | |
174 | * based on the flow table and other configuration. (See the 'wc' | |
175 | * description in "struct xlate_out" for more details.) | |
b0f7b9b5 | 176 | * |
bcd2633a JP |
177 | * Each subfacet tracks the datapath's idea of the flow equivalent to |
178 | * the facet. When the kernel module (or other dpif implementation) and | |
179 | * Open vSwitch userspace agree on the definition of a flow key, there | |
180 | * is exactly one subfacet per facet. If the dpif implementation | |
181 | * supports more-specific flow matching than userspace, however, a facet | |
182 | * can have more than one subfacet. Examples include the dpif | |
183 | * implementation not supporting the same wildcards as userspace or some | |
184 | * distinction in flow that userspace simply doesn't understand. | |
185 | * | |
186 | * Flow expiration works in terms of subfacets, so a facet must have at | |
187 | * least one subfacet or it will never expire, leaking memory. */ | |
abe529af | 188 | struct facet { |
b0f7b9b5 BP |
189 | /* Owners. */ |
190 | struct hmap_node hmap_node; /* In owning ofproto's 'facets' hmap. */ | |
191 | struct list list_node; /* In owning rule's 'facets' list. */ | |
192 | struct rule_dpif *rule; /* Owning rule. */ | |
193 | ||
194 | /* Owned data. */ | |
195 | struct list subfacets; | |
abe529af BP |
196 | long long int used; /* Time last used; time created if not used. */ |
197 | ||
b0f7b9b5 | 198 | /* Key. */ |
bcd2633a JP |
199 | struct flow flow; /* Flow of the creating subfacet. */ |
200 | struct cls_rule cr; /* In 'ofproto_dpif's facets classifier. */ | |
b0f7b9b5 | 201 | |
abe529af BP |
202 | /* These statistics: |
203 | * | |
204 | * - Do include packets and bytes sent "by hand", e.g. with | |
205 | * dpif_execute(). | |
206 | * | |
207 | * - Do include packets and bytes that were obtained from the datapath | |
b0f7b9b5 | 208 | * when a subfacet's statistics were reset (e.g. dpif_flow_put() with |
abe529af | 209 | * DPIF_FP_ZERO_STATS). |
b0f7b9b5 BP |
210 | * |
211 | * - Do not include packets or bytes that can be obtained from the | |
212 | * datapath for any existing subfacet. | |
abe529af BP |
213 | */ |
214 | uint64_t packet_count; /* Number of packets received. */ | |
215 | uint64_t byte_count; /* Number of bytes received. */ | |
216 | ||
b0f7b9b5 | 217 | /* Resubmit statistics. */ |
9d24de3b JP |
218 | uint64_t prev_packet_count; /* Number of packets from last stats push. */ |
219 | uint64_t prev_byte_count; /* Number of bytes from last stats push. */ | |
220 | long long int prev_used; /* Used time from last stats push. */ | |
abe529af | 221 | |
b0f7b9b5 | 222 | /* Accounting. */ |
907a4c5e | 223 | uint64_t accounted_bytes; /* Bytes processed by facet_account(). */ |
b0f7b9b5 | 224 | struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */ |
0e553d9c | 225 | uint8_t tcp_flags; /* TCP flags seen for this 'rule'. */ |
abe529af | 226 | |
bbafd73b | 227 | struct xlate_out xout; |
4dff9097 | 228 | |
26cd7e34 BP |
229 | /* Storage for a single subfacet, to reduce malloc() time and space |
230 | * overhead. (A facet always has at least one subfacet and in the common | |
bcd516b7 JP |
231 | * case has exactly one subfacet. However, 'one_subfacet' may not |
232 | * always be valid, since it could have been removed after newer | |
233 | * subfacets were pushed onto the 'subfacets' list.) */ | |
26cd7e34 | 234 | struct subfacet one_subfacet; |
6cf474d7 EJ |
235 | |
236 | long long int learn_rl; /* Rate limiter for facet_learn(). */ | |
abe529af BP |
237 | }; |
238 | ||
bcd2633a JP |
239 | static struct facet *facet_create(const struct flow_miss *, struct rule_dpif *, |
240 | struct xlate_out *, | |
241 | struct dpif_flow_stats *); | |
15baa734 | 242 | static void facet_remove(struct facet *); |
abe529af BP |
243 | static void facet_free(struct facet *); |
244 | ||
bcd2633a | 245 | static struct facet *facet_find(struct ofproto_dpif *, const struct flow *); |
abe529af | 246 | static struct facet *facet_lookup_valid(struct ofproto_dpif *, |
bcd2633a | 247 | const struct flow *); |
5bf64ade | 248 | static bool facet_revalidate(struct facet *); |
6814e51f | 249 | static bool facet_check_consistency(struct facet *); |
abe529af | 250 | |
15baa734 | 251 | static void facet_flush_stats(struct facet *); |
abe529af | 252 | |
bbb5d219 | 253 | static void facet_reset_counters(struct facet *); |
9dfb1f78 | 254 | static void facet_push_stats(struct facet *, bool may_learn); |
3de9590b BP |
255 | static void facet_learn(struct facet *); |
256 | static void facet_account(struct facet *); | |
8844e035 | 257 | static void push_all_stats(void); |
abe529af BP |
258 | |
259 | static bool facet_is_controller_flow(struct facet *); | |
260 | ||
ca077186 EJ |
261 | /* Node in 'ofport_dpif''s 'priorities' map. Used to maintain a map from |
262 | * 'priority' (the datapath's term for QoS queue) to the dscp bits which all | |
263 | * traffic egressing the 'ofport' with that priority should be marked with. */ | |
264 | struct priority_to_dscp { | |
265 | struct hmap_node hmap_node; /* Node in 'ofport_dpif''s 'priorities' map. */ | |
266 | uint32_t priority; /* Priority of this queue (see struct flow). */ | |
267 | ||
268 | uint8_t dscp; /* DSCP bits to mark outgoing traffic with. */ | |
269 | }; | |
270 | ||
52a90c29 BP |
271 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) |
272 | * | |
273 | * This is deprecated. It is only for compatibility with broken device drivers | |
274 | * in old versions of Linux that do not properly support VLANs when VLAN | |
275 | * devices are not used. When broken device drivers are no longer in | |
276 | * widespread use, we will delete these interfaces. */ | |
277 | struct vlan_splinter { | |
278 | struct hmap_node realdev_vid_node; | |
279 | struct hmap_node vlandev_node; | |
280 | uint16_t realdev_ofp_port; | |
281 | uint16_t vlandev_ofp_port; | |
282 | int vid; | |
283 | }; | |
284 | ||
b98d8985 | 285 | static bool vsp_adjust_flow(const struct ofproto_dpif *, struct flow *); |
52a90c29 BP |
286 | static void vsp_remove(struct ofport_dpif *); |
287 | static void vsp_add(struct ofport_dpif *, uint16_t realdev_ofp_port, int vid); | |
288 | ||
e1b1d06a JP |
289 | static uint16_t odp_port_to_ofp_port(const struct ofproto_dpif *, |
290 | uint32_t odp_port); | |
291 | ||
abe529af BP |
292 | static struct ofport_dpif * |
293 | ofport_dpif_cast(const struct ofport *ofport) | |
294 | { | |
abe529af BP |
295 | return ofport ? CONTAINER_OF(ofport, struct ofport_dpif, up) : NULL; |
296 | } | |
297 | ||
298 | static void port_run(struct ofport_dpif *); | |
0aa66d6e | 299 | static void port_run_fast(struct ofport_dpif *); |
abe529af | 300 | static void port_wait(struct ofport_dpif *); |
8aee94b6 | 301 | static int set_bfd(struct ofport *, const struct smap *); |
a5610457 | 302 | static int set_cfm(struct ofport *, const struct cfm_settings *); |
8b36f51e | 303 | static void ofport_clear_priorities(struct ofport_dpif *); |
8fa4d1d0 | 304 | static void run_fast_rl(void); |
abe529af | 305 | |
7ee20df1 BP |
306 | struct dpif_completion { |
307 | struct list list_node; | |
308 | struct ofoperation *op; | |
309 | }; | |
310 | ||
cdc3ab65 EJ |
311 | /* Reasons that we might need to revalidate every facet, and corresponding |
312 | * coverage counters. | |
313 | * | |
314 | * A value of 0 means that there is no need to revalidate. | |
315 | * | |
316 | * It would be nice to have some cleaner way to integrate with coverage | |
317 | * counters, but with only a few reasons I guess this is good enough for | |
318 | * now. */ | |
319 | enum revalidate_reason { | |
320 | REV_RECONFIGURE = 1, /* Switch configuration changed. */ | |
321 | REV_STP, /* Spanning tree protocol port status change. */ | |
322 | REV_PORT_TOGGLED, /* Port enabled or disabled by CFM, LACP, ...*/ | |
323 | REV_FLOW_TABLE, /* Flow table changed. */ | |
324 | REV_INCONSISTENCY /* Facet self-check failed. */ | |
325 | }; | |
3c4a309c BP |
326 | COVERAGE_DEFINE(rev_reconfigure); |
327 | COVERAGE_DEFINE(rev_stp); | |
328 | COVERAGE_DEFINE(rev_port_toggled); | |
329 | COVERAGE_DEFINE(rev_flow_table); | |
330 | COVERAGE_DEFINE(rev_inconsistency); | |
331 | ||
8f73d537 EJ |
332 | /* Drop keys are odp flow keys which have drop flows installed in the kernel. |
333 | * These are datapath flows which have no associated ofproto, if they did we | |
334 | * would use facets. */ | |
335 | struct drop_key { | |
336 | struct hmap_node hmap_node; | |
337 | struct nlattr *key; | |
338 | size_t key_len; | |
339 | }; | |
340 | ||
cdc3ab65 EJ |
341 | struct avg_subfacet_rates { |
342 | double add_rate; /* Moving average of new flows created per minute. */ | |
343 | double del_rate; /* Moving average of flows deleted per minute. */ | |
344 | }; | |
345 | ||
346 | /* All datapaths of a given type share a single dpif backer instance. */ | |
347 | struct dpif_backer { | |
348 | char *type; | |
349 | int refcount; | |
350 | struct dpif *dpif; | |
351 | struct timer next_expiration; | |
352 | struct hmap odp_to_ofport_map; /* ODP port to ofport mapping. */ | |
353 | ||
354 | struct simap tnl_backers; /* Set of dpif ports backing tunnels. */ | |
355 | ||
356 | /* Facet revalidation flags applying to facets which use this backer. */ | |
357 | enum revalidate_reason need_revalidate; /* Revalidate every facet. */ | |
358 | struct tag_set revalidate_set; /* Revalidate only matching facets. */ | |
359 | ||
360 | struct hmap drop_keys; /* Set of dropped odp keys. */ | |
361 | bool recv_set_enable; /* Enables or disables receiving packets. */ | |
362 | ||
363 | struct hmap subfacets; | |
364 | struct governor *governor; | |
365 | ||
366 | /* Subfacet statistics. | |
367 | * | |
368 | * These keep track of the total number of subfacets added and deleted and | |
369 | * flow life span. They are useful for computing the flow rates stats | |
370 | * exposed via "ovs-appctl dpif/show". The goal is to learn about | |
371 | * traffic patterns in ways that we can use later to improve Open vSwitch | |
372 | * performance in new situations. */ | |
373 | long long int created; /* Time when it is created. */ | |
374 | unsigned max_n_subfacet; /* Maximum number of flows */ | |
375 | unsigned avg_n_subfacet; /* Average number of flows. */ | |
376 | long long int avg_subfacet_life; /* Average life span of subfacets. */ | |
377 | ||
378 | /* The average number of subfacets... */ | |
379 | struct avg_subfacet_rates hourly; /* ...over the last hour. */ | |
380 | struct avg_subfacet_rates daily; /* ...over the last day. */ | |
381 | struct avg_subfacet_rates lifetime; /* ...over the switch lifetime. */ | |
382 | long long int last_minute; /* Last time 'hourly' was updated. */ | |
383 | ||
384 | /* Number of subfacets added or deleted since 'last_minute'. */ | |
385 | unsigned subfacet_add_count; | |
386 | unsigned subfacet_del_count; | |
387 | ||
388 | /* Number of subfacets added or deleted from 'created' to 'last_minute.' */ | |
389 | unsigned long long int total_subfacet_add_count; | |
390 | unsigned long long int total_subfacet_del_count; | |
391 | }; | |
392 | ||
acf60855 JP |
393 | /* All existing ofproto_backer instances, indexed by ofproto->up.type. */ |
394 | static struct shash all_dpif_backers = SHASH_INITIALIZER(&all_dpif_backers); | |
395 | ||
8f73d537 | 396 | static void drop_key_clear(struct dpif_backer *); |
acf60855 JP |
397 | static struct ofport_dpif * |
398 | odp_port_to_ofport(const struct dpif_backer *, uint32_t odp_port); | |
dc54ef36 | 399 | static void update_moving_averages(struct dpif_backer *backer); |
735d7efb | 400 | |
7ee20df1 BP |
401 | /* Defer flow mod completion until "ovs-appctl ofproto/unclog"? (Useful only |
402 | * for debugging the asynchronous flow_mod implementation.) */ | |
403 | static bool clogged; | |
404 | ||
b44a10b7 BP |
405 | /* All existing ofproto_dpif instances, indexed by ->up.name. */ |
406 | static struct hmap all_ofproto_dpifs = HMAP_INITIALIZER(&all_ofproto_dpifs); | |
407 | ||
abe529af BP |
408 | static void ofproto_dpif_unixctl_init(void); |
409 | ||
501f8d1f BP |
410 | /* Upcalls. */ |
411 | #define FLOW_MISS_MAX_BATCH 50 | |
acf60855 | 412 | static int handle_upcalls(struct dpif_backer *, unsigned int max_batch); |
abe529af BP |
413 | |
414 | /* Flow expiration. */ | |
acf60855 | 415 | static int expire(struct dpif_backer *); |
abe529af | 416 | |
6fca1ffb BP |
417 | /* NetFlow. */ |
418 | static void send_netflow_active_timeouts(struct ofproto_dpif *); | |
419 | ||
abe529af | 420 | /* Utilities. */ |
52a90c29 | 421 | static int send_packet(const struct ofport_dpif *, struct ofpbuf *packet); |
9583bc14 | 422 | |
abe529af BP |
423 | /* Global variables. */ |
424 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
acf60855 JP |
425 | |
426 | /* Initial mappings of port to bridge mappings. */ | |
427 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
abe529af BP |
428 | \f |
429 | /* Factory functions. */ | |
430 | ||
b0408fca | 431 | static void |
acf60855 | 432 | init(const struct shash *iface_hints) |
b0408fca | 433 | { |
acf60855 JP |
434 | struct shash_node *node; |
435 | ||
436 | /* Make a local copy, since we don't own 'iface_hints' elements. */ | |
437 | SHASH_FOR_EACH(node, iface_hints) { | |
438 | const struct iface_hint *orig_hint = node->data; | |
439 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
440 | ||
441 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
442 | new_hint->br_type = xstrdup(orig_hint->br_type); | |
443 | new_hint->ofp_port = orig_hint->ofp_port; | |
444 | ||
445 | shash_add(&init_ofp_ports, node->name, new_hint); | |
446 | } | |
b0408fca JP |
447 | } |
448 | ||
abe529af BP |
449 | static void |
450 | enumerate_types(struct sset *types) | |
451 | { | |
452 | dp_enumerate_types(types); | |
453 | } | |
454 | ||
455 | static int | |
456 | enumerate_names(const char *type, struct sset *names) | |
457 | { | |
acf60855 JP |
458 | struct ofproto_dpif *ofproto; |
459 | ||
460 | sset_clear(names); | |
461 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
462 | if (strcmp(type, ofproto->up.type)) { | |
463 | continue; | |
464 | } | |
465 | sset_add(names, ofproto->up.name); | |
466 | } | |
467 | ||
468 | return 0; | |
abe529af BP |
469 | } |
470 | ||
471 | static int | |
472 | del(const char *type, const char *name) | |
473 | { | |
474 | struct dpif *dpif; | |
475 | int error; | |
476 | ||
477 | error = dpif_open(name, type, &dpif); | |
478 | if (!error) { | |
479 | error = dpif_delete(dpif); | |
480 | dpif_close(dpif); | |
481 | } | |
482 | return error; | |
483 | } | |
484 | \f | |
0aeaabc8 JP |
485 | static const char * |
486 | port_open_type(const char *datapath_type, const char *port_type) | |
487 | { | |
488 | return dpif_port_open_type(datapath_type, port_type); | |
489 | } | |
490 | ||
acf60855 JP |
491 | /* Type functions. */ |
492 | ||
476cb42a BP |
493 | static struct ofproto_dpif * |
494 | lookup_ofproto_dpif_by_port_name(const char *name) | |
495 | { | |
496 | struct ofproto_dpif *ofproto; | |
497 | ||
498 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
499 | if (sset_contains(&ofproto->ports, name)) { | |
500 | return ofproto; | |
501 | } | |
502 | } | |
503 | ||
504 | return NULL; | |
505 | } | |
506 | ||
acf60855 JP |
507 | static int |
508 | type_run(const char *type) | |
509 | { | |
e20b5746 | 510 | static long long int push_timer = LLONG_MIN; |
acf60855 JP |
511 | struct dpif_backer *backer; |
512 | char *devname; | |
513 | int error; | |
514 | ||
515 | backer = shash_find_data(&all_dpif_backers, type); | |
516 | if (!backer) { | |
517 | /* This is not necessarily a problem, since backers are only | |
518 | * created on demand. */ | |
519 | return 0; | |
520 | } | |
521 | ||
522 | dpif_run(backer->dpif); | |
523 | ||
e20b5746 EJ |
524 | /* The most natural place to push facet statistics is when they're pulled |
525 | * from the datapath. However, when there are many flows in the datapath, | |
526 | * this expensive operation can occur so frequently, that it reduces our | |
527 | * ability to quickly set up flows. To reduce the cost, we push statistics | |
528 | * here instead. */ | |
529 | if (time_msec() > push_timer) { | |
530 | push_timer = time_msec() + 2000; | |
531 | push_all_stats(); | |
532 | } | |
533 | ||
40358701 GS |
534 | /* If vswitchd started with other_config:flow_restore_wait set as "true", |
535 | * and the configuration has now changed to "false", enable receiving | |
536 | * packets from the datapath. */ | |
537 | if (!backer->recv_set_enable && !ofproto_get_flow_restore_wait()) { | |
538 | backer->recv_set_enable = true; | |
539 | ||
540 | error = dpif_recv_set(backer->dpif, backer->recv_set_enable); | |
541 | if (error) { | |
542 | VLOG_ERR("Failed to enable receiving packets in dpif."); | |
543 | return error; | |
544 | } | |
545 | dpif_flow_flush(backer->dpif); | |
546 | backer->need_revalidate = REV_RECONFIGURE; | |
547 | } | |
548 | ||
2cc3c58e EJ |
549 | if (backer->need_revalidate |
550 | || !tag_set_is_empty(&backer->revalidate_set)) { | |
551 | struct tag_set revalidate_set = backer->revalidate_set; | |
552 | bool need_revalidate = backer->need_revalidate; | |
553 | struct ofproto_dpif *ofproto; | |
a614d823 KM |
554 | struct simap_node *node; |
555 | struct simap tmp_backers; | |
556 | ||
557 | /* Handle tunnel garbage collection. */ | |
558 | simap_init(&tmp_backers); | |
559 | simap_swap(&backer->tnl_backers, &tmp_backers); | |
560 | ||
561 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
562 | struct ofport_dpif *iter; | |
563 | ||
564 | if (backer != ofproto->backer) { | |
565 | continue; | |
566 | } | |
567 | ||
568 | HMAP_FOR_EACH (iter, up.hmap_node, &ofproto->up.ports) { | |
3aa30359 | 569 | char namebuf[NETDEV_VPORT_NAME_BUFSIZE]; |
a614d823 KM |
570 | const char *dp_port; |
571 | ||
572 | if (!iter->tnl_port) { | |
573 | continue; | |
574 | } | |
575 | ||
3aa30359 BP |
576 | dp_port = netdev_vport_get_dpif_port(iter->up.netdev, |
577 | namebuf, sizeof namebuf); | |
a614d823 KM |
578 | node = simap_find(&tmp_backers, dp_port); |
579 | if (node) { | |
580 | simap_put(&backer->tnl_backers, dp_port, node->data); | |
581 | simap_delete(&tmp_backers, node); | |
582 | node = simap_find(&backer->tnl_backers, dp_port); | |
583 | } else { | |
584 | node = simap_find(&backer->tnl_backers, dp_port); | |
585 | if (!node) { | |
586 | uint32_t odp_port = UINT32_MAX; | |
587 | ||
588 | if (!dpif_port_add(backer->dpif, iter->up.netdev, | |
589 | &odp_port)) { | |
590 | simap_put(&backer->tnl_backers, dp_port, odp_port); | |
591 | node = simap_find(&backer->tnl_backers, dp_port); | |
592 | } | |
593 | } | |
594 | } | |
595 | ||
596 | iter->odp_port = node ? node->data : OVSP_NONE; | |
597 | if (tnl_port_reconfigure(&iter->up, iter->odp_port, | |
598 | &iter->tnl_port)) { | |
599 | backer->need_revalidate = REV_RECONFIGURE; | |
600 | } | |
601 | } | |
602 | } | |
603 | ||
604 | SIMAP_FOR_EACH (node, &tmp_backers) { | |
605 | dpif_port_del(backer->dpif, node->data); | |
606 | } | |
607 | simap_destroy(&tmp_backers); | |
2cc3c58e EJ |
608 | |
609 | switch (backer->need_revalidate) { | |
610 | case REV_RECONFIGURE: COVERAGE_INC(rev_reconfigure); break; | |
611 | case REV_STP: COVERAGE_INC(rev_stp); break; | |
612 | case REV_PORT_TOGGLED: COVERAGE_INC(rev_port_toggled); break; | |
613 | case REV_FLOW_TABLE: COVERAGE_INC(rev_flow_table); break; | |
614 | case REV_INCONSISTENCY: COVERAGE_INC(rev_inconsistency); break; | |
615 | } | |
616 | ||
8f73d537 EJ |
617 | if (backer->need_revalidate) { |
618 | /* Clear the drop_keys in case we should now be accepting some | |
619 | * formerly dropped flows. */ | |
620 | drop_key_clear(backer); | |
621 | } | |
622 | ||
f728af2e BP |
623 | /* Clear the revalidation flags. */ |
624 | tag_set_init(&backer->revalidate_set); | |
625 | backer->need_revalidate = 0; | |
626 | ||
2cc3c58e | 627 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { |
f231418e | 628 | struct facet *facet, *next; |
bcd2633a | 629 | struct cls_cursor cursor; |
2cc3c58e EJ |
630 | |
631 | if (ofproto->backer != backer) { | |
632 | continue; | |
633 | } | |
634 | ||
bcd2633a JP |
635 | cls_cursor_init(&cursor, &ofproto->facets, NULL); |
636 | CLS_CURSOR_FOR_EACH_SAFE (facet, next, cr, &cursor) { | |
2cc3c58e | 637 | if (need_revalidate |
bbafd73b | 638 | || tag_set_intersects(&revalidate_set, facet->xout.tags)) { |
2cc3c58e | 639 | facet_revalidate(facet); |
8fa4d1d0 | 640 | run_fast_rl(); |
2cc3c58e EJ |
641 | } |
642 | } | |
643 | } | |
2cc3c58e EJ |
644 | } |
645 | ||
40358701 GS |
646 | if (!backer->recv_set_enable) { |
647 | /* Wake up before a max of 1000ms. */ | |
648 | timer_set_duration(&backer->next_expiration, 1000); | |
649 | } else if (timer_expired(&backer->next_expiration)) { | |
acf60855 JP |
650 | int delay = expire(backer); |
651 | timer_set_duration(&backer->next_expiration, delay); | |
652 | } | |
653 | ||
654 | /* Check for port changes in the dpif. */ | |
655 | while ((error = dpif_port_poll(backer->dpif, &devname)) == 0) { | |
476cb42a | 656 | struct ofproto_dpif *ofproto; |
acf60855 JP |
657 | struct dpif_port port; |
658 | ||
659 | /* Don't report on the datapath's device. */ | |
660 | if (!strcmp(devname, dpif_base_name(backer->dpif))) { | |
c83b89ab | 661 | goto next; |
acf60855 JP |
662 | } |
663 | ||
b9ad7294 EJ |
664 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, |
665 | &all_ofproto_dpifs) { | |
7d82ab2e | 666 | if (simap_contains(&ofproto->backer->tnl_backers, devname)) { |
b9ad7294 EJ |
667 | goto next; |
668 | } | |
669 | } | |
670 | ||
476cb42a | 671 | ofproto = lookup_ofproto_dpif_by_port_name(devname); |
acf60855 JP |
672 | if (dpif_port_query_by_name(backer->dpif, devname, &port)) { |
673 | /* The port was removed. If we know the datapath, | |
674 | * report it through poll_set(). If we don't, it may be | |
675 | * notifying us of a removal we initiated, so ignore it. | |
676 | * If there's a pending ENOBUFS, let it stand, since | |
677 | * everything will be reevaluated. */ | |
678 | if (ofproto && ofproto->port_poll_errno != ENOBUFS) { | |
679 | sset_add(&ofproto->port_poll_set, devname); | |
680 | ofproto->port_poll_errno = 0; | |
681 | } | |
acf60855 JP |
682 | } else if (!ofproto) { |
683 | /* The port was added, but we don't know with which | |
684 | * ofproto we should associate it. Delete it. */ | |
685 | dpif_port_del(backer->dpif, port.port_no); | |
686 | } | |
5b5e6a4c | 687 | dpif_port_destroy(&port); |
acf60855 | 688 | |
c83b89ab | 689 | next: |
acf60855 JP |
690 | free(devname); |
691 | } | |
692 | ||
693 | if (error != EAGAIN) { | |
694 | struct ofproto_dpif *ofproto; | |
695 | ||
696 | /* There was some sort of error, so propagate it to all | |
697 | * ofprotos that use this backer. */ | |
698 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, | |
699 | &all_ofproto_dpifs) { | |
700 | if (ofproto->backer == backer) { | |
701 | sset_clear(&ofproto->port_poll_set); | |
702 | ofproto->port_poll_errno = error; | |
703 | } | |
704 | } | |
705 | } | |
706 | ||
04d08d54 EJ |
707 | if (backer->governor) { |
708 | size_t n_subfacets; | |
709 | ||
710 | governor_run(backer->governor); | |
711 | ||
712 | /* If the governor has shrunk to its minimum size and the number of | |
713 | * subfacets has dwindled, then drop the governor entirely. | |
714 | * | |
715 | * For hysteresis, the number of subfacets to drop the governor is | |
716 | * smaller than the number needed to trigger its creation. */ | |
717 | n_subfacets = hmap_count(&backer->subfacets); | |
718 | if (n_subfacets * 4 < flow_eviction_threshold | |
719 | && governor_is_idle(backer->governor)) { | |
720 | governor_destroy(backer->governor); | |
721 | backer->governor = NULL; | |
722 | } | |
723 | } | |
724 | ||
acf60855 JP |
725 | return 0; |
726 | } | |
727 | ||
728 | static int | |
8fa4d1d0 | 729 | dpif_backer_run_fast(struct dpif_backer *backer, int max_batch) |
acf60855 | 730 | { |
acf60855 JP |
731 | unsigned int work; |
732 | ||
40358701 GS |
733 | /* If recv_set_enable is false, we should not handle upcalls. */ |
734 | if (!backer->recv_set_enable) { | |
735 | return 0; | |
736 | } | |
737 | ||
acf60855 JP |
738 | /* Handle one or more batches of upcalls, until there's nothing left to do |
739 | * or until we do a fixed total amount of work. | |
740 | * | |
741 | * We do work in batches because it can be much cheaper to set up a number | |
742 | * of flows and fire off their patches all at once. We do multiple batches | |
743 | * because in some cases handling a packet can cause another packet to be | |
744 | * queued almost immediately as part of the return flow. Both | |
745 | * optimizations can make major improvements on some benchmarks and | |
746 | * presumably for real traffic as well. */ | |
747 | work = 0; | |
8fa4d1d0 EJ |
748 | while (work < max_batch) { |
749 | int retval = handle_upcalls(backer, max_batch - work); | |
acf60855 JP |
750 | if (retval <= 0) { |
751 | return -retval; | |
752 | } | |
753 | work += retval; | |
754 | } | |
755 | ||
756 | return 0; | |
757 | } | |
758 | ||
8fa4d1d0 EJ |
759 | static int |
760 | type_run_fast(const char *type) | |
761 | { | |
762 | struct dpif_backer *backer; | |
763 | ||
764 | backer = shash_find_data(&all_dpif_backers, type); | |
765 | if (!backer) { | |
766 | /* This is not necessarily a problem, since backers are only | |
767 | * created on demand. */ | |
768 | return 0; | |
769 | } | |
770 | ||
771 | return dpif_backer_run_fast(backer, FLOW_MISS_MAX_BATCH); | |
772 | } | |
773 | ||
774 | static void | |
775 | run_fast_rl(void) | |
776 | { | |
777 | static long long int port_rl = LLONG_MIN; | |
778 | static unsigned int backer_rl = 0; | |
779 | ||
780 | if (time_msec() >= port_rl) { | |
781 | struct ofproto_dpif *ofproto; | |
782 | struct ofport_dpif *ofport; | |
783 | ||
784 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
785 | ||
786 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { | |
787 | port_run_fast(ofport); | |
788 | } | |
789 | } | |
790 | port_rl = time_msec() + 200; | |
791 | } | |
792 | ||
793 | /* XXX: We have to be careful not to do too much work in this function. If | |
794 | * we call dpif_backer_run_fast() too often, or with too large a batch, | |
795 | * performance improves signifcantly, but at a cost. It's possible for the | |
796 | * number of flows in the datapath to increase without bound, and for poll | |
797 | * loops to take 10s of seconds. The correct solution to this problem, | |
798 | * long term, is to separate flow miss handling into it's own thread so it | |
799 | * isn't affected by revalidations, and expirations. Until then, this is | |
800 | * the best we can do. */ | |
801 | if (++backer_rl >= 10) { | |
802 | struct shash_node *node; | |
803 | ||
804 | backer_rl = 0; | |
805 | SHASH_FOR_EACH (node, &all_dpif_backers) { | |
806 | dpif_backer_run_fast(node->data, 1); | |
807 | } | |
808 | } | |
809 | } | |
810 | ||
acf60855 JP |
811 | static void |
812 | type_wait(const char *type) | |
813 | { | |
814 | struct dpif_backer *backer; | |
815 | ||
816 | backer = shash_find_data(&all_dpif_backers, type); | |
817 | if (!backer) { | |
818 | /* This is not necessarily a problem, since backers are only | |
819 | * created on demand. */ | |
820 | return; | |
821 | } | |
822 | ||
04d08d54 EJ |
823 | if (backer->governor) { |
824 | governor_wait(backer->governor); | |
825 | } | |
826 | ||
acf60855 JP |
827 | timer_wait(&backer->next_expiration); |
828 | } | |
829 | \f | |
abe529af BP |
830 | /* Basic life-cycle. */ |
831 | ||
c57b2226 BP |
832 | static int add_internal_flows(struct ofproto_dpif *); |
833 | ||
abe529af BP |
834 | static struct ofproto * |
835 | alloc(void) | |
836 | { | |
837 | struct ofproto_dpif *ofproto = xmalloc(sizeof *ofproto); | |
838 | return &ofproto->up; | |
839 | } | |
840 | ||
841 | static void | |
842 | dealloc(struct ofproto *ofproto_) | |
843 | { | |
844 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
845 | free(ofproto); | |
846 | } | |
847 | ||
acf60855 JP |
848 | static void |
849 | close_dpif_backer(struct dpif_backer *backer) | |
850 | { | |
851 | struct shash_node *node; | |
852 | ||
cb22974d | 853 | ovs_assert(backer->refcount > 0); |
acf60855 JP |
854 | |
855 | if (--backer->refcount) { | |
856 | return; | |
857 | } | |
858 | ||
8f73d537 EJ |
859 | drop_key_clear(backer); |
860 | hmap_destroy(&backer->drop_keys); | |
861 | ||
7d82ab2e | 862 | simap_destroy(&backer->tnl_backers); |
acf60855 JP |
863 | hmap_destroy(&backer->odp_to_ofport_map); |
864 | node = shash_find(&all_dpif_backers, backer->type); | |
865 | free(backer->type); | |
866 | shash_delete(&all_dpif_backers, node); | |
867 | dpif_close(backer->dpif); | |
868 | ||
04d08d54 EJ |
869 | ovs_assert(hmap_is_empty(&backer->subfacets)); |
870 | hmap_destroy(&backer->subfacets); | |
871 | governor_destroy(backer->governor); | |
872 | ||
acf60855 JP |
873 | free(backer); |
874 | } | |
875 | ||
876 | /* Datapath port slated for removal from datapath. */ | |
877 | struct odp_garbage { | |
878 | struct list list_node; | |
879 | uint32_t odp_port; | |
880 | }; | |
881 | ||
882 | static int | |
883 | open_dpif_backer(const char *type, struct dpif_backer **backerp) | |
884 | { | |
885 | struct dpif_backer *backer; | |
886 | struct dpif_port_dump port_dump; | |
887 | struct dpif_port port; | |
888 | struct shash_node *node; | |
889 | struct list garbage_list; | |
890 | struct odp_garbage *garbage, *next; | |
891 | struct sset names; | |
892 | char *backer_name; | |
893 | const char *name; | |
894 | int error; | |
895 | ||
896 | backer = shash_find_data(&all_dpif_backers, type); | |
897 | if (backer) { | |
898 | backer->refcount++; | |
899 | *backerp = backer; | |
900 | return 0; | |
901 | } | |
902 | ||
903 | backer_name = xasprintf("ovs-%s", type); | |
904 | ||
905 | /* Remove any existing datapaths, since we assume we're the only | |
906 | * userspace controlling the datapath. */ | |
907 | sset_init(&names); | |
908 | dp_enumerate_names(type, &names); | |
909 | SSET_FOR_EACH(name, &names) { | |
910 | struct dpif *old_dpif; | |
911 | ||
912 | /* Don't remove our backer if it exists. */ | |
913 | if (!strcmp(name, backer_name)) { | |
914 | continue; | |
915 | } | |
916 | ||
917 | if (dpif_open(name, type, &old_dpif)) { | |
918 | VLOG_WARN("couldn't open old datapath %s to remove it", name); | |
919 | } else { | |
920 | dpif_delete(old_dpif); | |
921 | dpif_close(old_dpif); | |
922 | } | |
923 | } | |
924 | sset_destroy(&names); | |
925 | ||
926 | backer = xmalloc(sizeof *backer); | |
927 | ||
928 | error = dpif_create_and_open(backer_name, type, &backer->dpif); | |
929 | free(backer_name); | |
930 | if (error) { | |
931 | VLOG_ERR("failed to open datapath of type %s: %s", type, | |
932 | strerror(error)); | |
4c1b1289 | 933 | free(backer); |
acf60855 JP |
934 | return error; |
935 | } | |
936 | ||
937 | backer->type = xstrdup(type); | |
04d08d54 | 938 | backer->governor = NULL; |
acf60855 JP |
939 | backer->refcount = 1; |
940 | hmap_init(&backer->odp_to_ofport_map); | |
8f73d537 | 941 | hmap_init(&backer->drop_keys); |
04d08d54 | 942 | hmap_init(&backer->subfacets); |
acf60855 | 943 | timer_set_duration(&backer->next_expiration, 1000); |
2cc3c58e | 944 | backer->need_revalidate = 0; |
7d82ab2e | 945 | simap_init(&backer->tnl_backers); |
2cc3c58e | 946 | tag_set_init(&backer->revalidate_set); |
40358701 | 947 | backer->recv_set_enable = !ofproto_get_flow_restore_wait(); |
acf60855 JP |
948 | *backerp = backer; |
949 | ||
40358701 GS |
950 | if (backer->recv_set_enable) { |
951 | dpif_flow_flush(backer->dpif); | |
952 | } | |
acf60855 JP |
953 | |
954 | /* Loop through the ports already on the datapath and remove any | |
955 | * that we don't need anymore. */ | |
956 | list_init(&garbage_list); | |
957 | dpif_port_dump_start(&port_dump, backer->dpif); | |
958 | while (dpif_port_dump_next(&port_dump, &port)) { | |
959 | node = shash_find(&init_ofp_ports, port.name); | |
960 | if (!node && strcmp(port.name, dpif_base_name(backer->dpif))) { | |
961 | garbage = xmalloc(sizeof *garbage); | |
962 | garbage->odp_port = port.port_no; | |
963 | list_push_front(&garbage_list, &garbage->list_node); | |
964 | } | |
965 | } | |
966 | dpif_port_dump_done(&port_dump); | |
967 | ||
968 | LIST_FOR_EACH_SAFE (garbage, next, list_node, &garbage_list) { | |
969 | dpif_port_del(backer->dpif, garbage->odp_port); | |
970 | list_remove(&garbage->list_node); | |
971 | free(garbage); | |
972 | } | |
973 | ||
974 | shash_add(&all_dpif_backers, type, backer); | |
975 | ||
40358701 | 976 | error = dpif_recv_set(backer->dpif, backer->recv_set_enable); |
acf60855 JP |
977 | if (error) { |
978 | VLOG_ERR("failed to listen on datapath of type %s: %s", | |
979 | type, strerror(error)); | |
980 | close_dpif_backer(backer); | |
981 | return error; | |
982 | } | |
983 | ||
dc54ef36 EJ |
984 | backer->max_n_subfacet = 0; |
985 | backer->created = time_msec(); | |
986 | backer->last_minute = backer->created; | |
987 | memset(&backer->hourly, 0, sizeof backer->hourly); | |
988 | memset(&backer->daily, 0, sizeof backer->daily); | |
989 | memset(&backer->lifetime, 0, sizeof backer->lifetime); | |
990 | backer->subfacet_add_count = 0; | |
991 | backer->subfacet_del_count = 0; | |
992 | backer->total_subfacet_add_count = 0; | |
993 | backer->total_subfacet_del_count = 0; | |
994 | backer->avg_n_subfacet = 0; | |
995 | backer->avg_subfacet_life = 0; | |
996 | ||
acf60855 JP |
997 | return error; |
998 | } | |
999 | ||
abe529af | 1000 | static int |
0f5f95a9 | 1001 | construct(struct ofproto *ofproto_) |
abe529af BP |
1002 | { |
1003 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
acf60855 | 1004 | struct shash_node *node, *next; |
91858960 | 1005 | int max_ports; |
abe529af BP |
1006 | int error; |
1007 | int i; | |
1008 | ||
acf60855 | 1009 | error = open_dpif_backer(ofproto->up.type, &ofproto->backer); |
abe529af | 1010 | if (error) { |
abe529af BP |
1011 | return error; |
1012 | } | |
1013 | ||
acf60855 | 1014 | max_ports = dpif_get_max_ports(ofproto->backer->dpif); |
91858960 BP |
1015 | ofproto_init_max_ports(ofproto_, MIN(max_ports, OFPP_MAX)); |
1016 | ||
abe529af BP |
1017 | ofproto->netflow = NULL; |
1018 | ofproto->sflow = NULL; | |
29089a54 | 1019 | ofproto->ipfix = NULL; |
21f7563c | 1020 | ofproto->stp = NULL; |
abe529af | 1021 | hmap_init(&ofproto->bundles); |
e764773c | 1022 | ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME); |
abe529af BP |
1023 | for (i = 0; i < MAX_MIRRORS; i++) { |
1024 | ofproto->mirrors[i] = NULL; | |
1025 | } | |
1026 | ofproto->has_bonded_bundles = false; | |
1027 | ||
bcd2633a | 1028 | classifier_init(&ofproto->facets); |
4d2a0f39 | 1029 | ofproto->consistency_rl = LLONG_MIN; |
54a9cbc9 BP |
1030 | |
1031 | for (i = 0; i < N_TABLES; i++) { | |
1032 | struct table_dpif *table = &ofproto->tables[i]; | |
1033 | ||
1034 | table->catchall_table = NULL; | |
1035 | table->other_table = NULL; | |
1036 | table->basis = random_uint32(); | |
1037 | } | |
abe529af | 1038 | |
7ee20df1 BP |
1039 | list_init(&ofproto->completions); |
1040 | ||
abe529af BP |
1041 | ofproto_dpif_unixctl_init(); |
1042 | ||
ccb7c863 | 1043 | ofproto->has_mirrors = false; |
daff3353 EJ |
1044 | ofproto->has_bundle_action = false; |
1045 | ||
52a90c29 BP |
1046 | hmap_init(&ofproto->vlandev_map); |
1047 | hmap_init(&ofproto->realdev_vid_map); | |
1048 | ||
acf60855 | 1049 | sset_init(&ofproto->ports); |
0a740f48 | 1050 | sset_init(&ofproto->ghost_ports); |
acf60855 JP |
1051 | sset_init(&ofproto->port_poll_set); |
1052 | ofproto->port_poll_errno = 0; | |
1053 | ||
1054 | SHASH_FOR_EACH_SAFE (node, next, &init_ofp_ports) { | |
4f9e08a5 | 1055 | struct iface_hint *iface_hint = node->data; |
acf60855 JP |
1056 | |
1057 | if (!strcmp(iface_hint->br_name, ofproto->up.name)) { | |
1058 | /* Check if the datapath already has this port. */ | |
1059 | if (dpif_port_exists(ofproto->backer->dpif, node->name)) { | |
1060 | sset_add(&ofproto->ports, node->name); | |
1061 | } | |
1062 | ||
1063 | free(iface_hint->br_name); | |
1064 | free(iface_hint->br_type); | |
4f9e08a5 | 1065 | free(iface_hint); |
acf60855 JP |
1066 | shash_delete(&init_ofp_ports, node); |
1067 | } | |
1068 | } | |
e1b1d06a | 1069 | |
b44a10b7 BP |
1070 | hmap_insert(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node, |
1071 | hash_string(ofproto->up.name, 0)); | |
6527c598 | 1072 | memset(&ofproto->stats, 0, sizeof ofproto->stats); |
0f5f95a9 BP |
1073 | |
1074 | ofproto_init_tables(ofproto_, N_TABLES); | |
c57b2226 BP |
1075 | error = add_internal_flows(ofproto); |
1076 | ofproto->up.tables[TBL_INTERNAL].flags = OFTABLE_HIDDEN | OFTABLE_READONLY; | |
1077 | ||
735d7efb AZ |
1078 | ofproto->n_hit = 0; |
1079 | ofproto->n_missed = 0; | |
1080 | ||
c57b2226 BP |
1081 | return error; |
1082 | } | |
1083 | ||
1084 | static int | |
1085 | add_internal_flow(struct ofproto_dpif *ofproto, int id, | |
f25d0cf3 | 1086 | const struct ofpbuf *ofpacts, struct rule_dpif **rulep) |
c57b2226 BP |
1087 | { |
1088 | struct ofputil_flow_mod fm; | |
1089 | int error; | |
1090 | ||
81a76618 BP |
1091 | match_init_catchall(&fm.match); |
1092 | fm.priority = 0; | |
1093 | match_set_reg(&fm.match, 0, id); | |
623e1caf | 1094 | fm.new_cookie = htonll(0); |
c57b2226 BP |
1095 | fm.cookie = htonll(0); |
1096 | fm.cookie_mask = htonll(0); | |
1097 | fm.table_id = TBL_INTERNAL; | |
1098 | fm.command = OFPFC_ADD; | |
1099 | fm.idle_timeout = 0; | |
1100 | fm.hard_timeout = 0; | |
1101 | fm.buffer_id = 0; | |
1102 | fm.out_port = 0; | |
1103 | fm.flags = 0; | |
f25d0cf3 BP |
1104 | fm.ofpacts = ofpacts->data; |
1105 | fm.ofpacts_len = ofpacts->size; | |
c57b2226 BP |
1106 | |
1107 | error = ofproto_flow_mod(&ofproto->up, &fm); | |
1108 | if (error) { | |
1109 | VLOG_ERR_RL(&rl, "failed to add internal flow %d (%s)", | |
1110 | id, ofperr_to_string(error)); | |
1111 | return error; | |
1112 | } | |
1113 | ||
9583bc14 EJ |
1114 | *rulep = rule_dpif_lookup_in_table(ofproto, &fm.match.flow, NULL, |
1115 | TBL_INTERNAL); | |
cb22974d | 1116 | ovs_assert(*rulep != NULL); |
0f5f95a9 | 1117 | |
abe529af BP |
1118 | return 0; |
1119 | } | |
1120 | ||
c57b2226 BP |
1121 | static int |
1122 | add_internal_flows(struct ofproto_dpif *ofproto) | |
1123 | { | |
f25d0cf3 BP |
1124 | struct ofpact_controller *controller; |
1125 | uint64_t ofpacts_stub[128 / 8]; | |
1126 | struct ofpbuf ofpacts; | |
c57b2226 BP |
1127 | int error; |
1128 | int id; | |
1129 | ||
f25d0cf3 | 1130 | ofpbuf_use_stack(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
c57b2226 BP |
1131 | id = 1; |
1132 | ||
f25d0cf3 BP |
1133 | controller = ofpact_put_CONTROLLER(&ofpacts); |
1134 | controller->max_len = UINT16_MAX; | |
1135 | controller->controller_id = 0; | |
1136 | controller->reason = OFPR_NO_MATCH; | |
1137 | ofpact_pad(&ofpacts); | |
1138 | ||
1139 | error = add_internal_flow(ofproto, id++, &ofpacts, &ofproto->miss_rule); | |
c57b2226 BP |
1140 | if (error) { |
1141 | return error; | |
1142 | } | |
1143 | ||
f25d0cf3 BP |
1144 | ofpbuf_clear(&ofpacts); |
1145 | error = add_internal_flow(ofproto, id++, &ofpacts, | |
c57b2226 | 1146 | &ofproto->no_packet_in_rule); |
7fd51d39 BP |
1147 | if (error) { |
1148 | return error; | |
1149 | } | |
1150 | ||
1151 | error = add_internal_flow(ofproto, id++, &ofpacts, | |
1152 | &ofproto->drop_frags_rule); | |
c57b2226 BP |
1153 | return error; |
1154 | } | |
1155 | ||
7ee20df1 BP |
1156 | static void |
1157 | complete_operations(struct ofproto_dpif *ofproto) | |
1158 | { | |
1159 | struct dpif_completion *c, *next; | |
1160 | ||
1161 | LIST_FOR_EACH_SAFE (c, next, list_node, &ofproto->completions) { | |
1162 | ofoperation_complete(c->op, 0); | |
1163 | list_remove(&c->list_node); | |
1164 | free(c); | |
1165 | } | |
1166 | } | |
1167 | ||
abe529af BP |
1168 | static void |
1169 | destruct(struct ofproto *ofproto_) | |
1170 | { | |
1171 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
7ee20df1 | 1172 | struct rule_dpif *rule, *next_rule; |
d0918789 | 1173 | struct oftable *table; |
abe529af BP |
1174 | int i; |
1175 | ||
b44a10b7 | 1176 | hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node); |
7ee20df1 BP |
1177 | complete_operations(ofproto); |
1178 | ||
0697b5c3 BP |
1179 | OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) { |
1180 | struct cls_cursor cursor; | |
1181 | ||
d0918789 | 1182 | cls_cursor_init(&cursor, &table->cls, NULL); |
0697b5c3 BP |
1183 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) { |
1184 | ofproto_rule_destroy(&rule->up); | |
1185 | } | |
7ee20df1 BP |
1186 | } |
1187 | ||
abe529af BP |
1188 | for (i = 0; i < MAX_MIRRORS; i++) { |
1189 | mirror_destroy(ofproto->mirrors[i]); | |
1190 | } | |
1191 | ||
1192 | netflow_destroy(ofproto->netflow); | |
bae473fe | 1193 | dpif_sflow_destroy(ofproto->sflow); |
abe529af BP |
1194 | hmap_destroy(&ofproto->bundles); |
1195 | mac_learning_destroy(ofproto->ml); | |
1196 | ||
bcd2633a | 1197 | classifier_destroy(&ofproto->facets); |
abe529af | 1198 | |
52a90c29 BP |
1199 | hmap_destroy(&ofproto->vlandev_map); |
1200 | hmap_destroy(&ofproto->realdev_vid_map); | |
1201 | ||
acf60855 | 1202 | sset_destroy(&ofproto->ports); |
0a740f48 | 1203 | sset_destroy(&ofproto->ghost_ports); |
acf60855 | 1204 | sset_destroy(&ofproto->port_poll_set); |
e1b1d06a | 1205 | |
acf60855 | 1206 | close_dpif_backer(ofproto->backer); |
abe529af BP |
1207 | } |
1208 | ||
1209 | static int | |
5fcc0d00 | 1210 | run_fast(struct ofproto *ofproto_) |
abe529af BP |
1211 | { |
1212 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
0aa66d6e | 1213 | struct ofport_dpif *ofport; |
abe529af | 1214 | |
40358701 GS |
1215 | /* Do not perform any periodic activity required by 'ofproto' while |
1216 | * waiting for flow restore to complete. */ | |
1217 | if (ofproto_get_flow_restore_wait()) { | |
1218 | return 0; | |
1219 | } | |
1220 | ||
0aa66d6e EJ |
1221 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { |
1222 | port_run_fast(ofport); | |
1223 | } | |
1224 | ||
5fcc0d00 BP |
1225 | return 0; |
1226 | } | |
1227 | ||
1228 | static int | |
1229 | run(struct ofproto *ofproto_) | |
1230 | { | |
1231 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1232 | struct ofport_dpif *ofport; | |
1233 | struct ofbundle *bundle; | |
1234 | int error; | |
1235 | ||
1236 | if (!clogged) { | |
1237 | complete_operations(ofproto); | |
1238 | } | |
5fcc0d00 | 1239 | |
40358701 GS |
1240 | /* Do not perform any periodic activity below required by 'ofproto' while |
1241 | * waiting for flow restore to complete. */ | |
1242 | if (ofproto_get_flow_restore_wait()) { | |
1243 | return 0; | |
1244 | } | |
1245 | ||
5fcc0d00 BP |
1246 | error = run_fast(ofproto_); |
1247 | if (error) { | |
1248 | return error; | |
abe529af BP |
1249 | } |
1250 | ||
abe529af | 1251 | if (ofproto->netflow) { |
6fca1ffb BP |
1252 | if (netflow_run(ofproto->netflow)) { |
1253 | send_netflow_active_timeouts(ofproto); | |
1254 | } | |
abe529af BP |
1255 | } |
1256 | if (ofproto->sflow) { | |
bae473fe | 1257 | dpif_sflow_run(ofproto->sflow); |
abe529af BP |
1258 | } |
1259 | ||
1260 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { | |
1261 | port_run(ofport); | |
1262 | } | |
1263 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
1264 | bundle_run(bundle); | |
1265 | } | |
1266 | ||
21f7563c | 1267 | stp_run(ofproto); |
2cc3c58e | 1268 | mac_learning_run(ofproto->ml, &ofproto->backer->revalidate_set); |
abe529af | 1269 | |
6814e51f | 1270 | /* Check the consistency of a random facet, to aid debugging. */ |
4d2a0f39 | 1271 | if (time_msec() >= ofproto->consistency_rl |
bcd2633a | 1272 | && !classifier_is_empty(&ofproto->facets) |
2cc3c58e | 1273 | && !ofproto->backer->need_revalidate) { |
bcd2633a JP |
1274 | struct cls_table *table; |
1275 | struct cls_rule *cr; | |
6814e51f BP |
1276 | struct facet *facet; |
1277 | ||
4d2a0f39 EJ |
1278 | ofproto->consistency_rl = time_msec() + 250; |
1279 | ||
bcd2633a JP |
1280 | table = CONTAINER_OF(hmap_random_node(&ofproto->facets.tables), |
1281 | struct cls_table, hmap_node); | |
1282 | cr = CONTAINER_OF(hmap_random_node(&table->rules), struct cls_rule, | |
1283 | hmap_node); | |
1284 | facet = CONTAINER_OF(cr, struct facet, cr); | |
1285 | ||
2cc3c58e | 1286 | if (!tag_set_intersects(&ofproto->backer->revalidate_set, |
bbafd73b | 1287 | facet->xout.tags)) { |
6814e51f | 1288 | if (!facet_check_consistency(facet)) { |
2cc3c58e | 1289 | ofproto->backer->need_revalidate = REV_INCONSISTENCY; |
6814e51f BP |
1290 | } |
1291 | } | |
1292 | } | |
1293 | ||
abe529af BP |
1294 | return 0; |
1295 | } | |
1296 | ||
1297 | static void | |
1298 | wait(struct ofproto *ofproto_) | |
1299 | { | |
1300 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1301 | struct ofport_dpif *ofport; | |
1302 | struct ofbundle *bundle; | |
1303 | ||
7ee20df1 BP |
1304 | if (!clogged && !list_is_empty(&ofproto->completions)) { |
1305 | poll_immediate_wake(); | |
1306 | } | |
1307 | ||
40358701 GS |
1308 | if (ofproto_get_flow_restore_wait()) { |
1309 | return; | |
1310 | } | |
1311 | ||
acf60855 JP |
1312 | dpif_wait(ofproto->backer->dpif); |
1313 | dpif_recv_wait(ofproto->backer->dpif); | |
abe529af | 1314 | if (ofproto->sflow) { |
bae473fe | 1315 | dpif_sflow_wait(ofproto->sflow); |
abe529af | 1316 | } |
2cc3c58e | 1317 | if (!tag_set_is_empty(&ofproto->backer->revalidate_set)) { |
abe529af BP |
1318 | poll_immediate_wake(); |
1319 | } | |
1320 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { | |
1321 | port_wait(ofport); | |
1322 | } | |
1323 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
1324 | bundle_wait(bundle); | |
1325 | } | |
6fca1ffb BP |
1326 | if (ofproto->netflow) { |
1327 | netflow_wait(ofproto->netflow); | |
1328 | } | |
1c313b88 | 1329 | mac_learning_wait(ofproto->ml); |
21f7563c | 1330 | stp_wait(ofproto); |
2cc3c58e | 1331 | if (ofproto->backer->need_revalidate) { |
abe529af BP |
1332 | /* Shouldn't happen, but if it does just go around again. */ |
1333 | VLOG_DBG_RL(&rl, "need revalidate in ofproto_wait_cb()"); | |
1334 | poll_immediate_wake(); | |
abe529af BP |
1335 | } |
1336 | } | |
1337 | ||
0d085684 BP |
1338 | static void |
1339 | get_memory_usage(const struct ofproto *ofproto_, struct simap *usage) | |
1340 | { | |
1341 | const struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
bcd2633a | 1342 | struct cls_cursor cursor; |
04d08d54 EJ |
1343 | size_t n_subfacets = 0; |
1344 | struct facet *facet; | |
0d085684 | 1345 | |
bcd2633a JP |
1346 | simap_increase(usage, "facets", classifier_count(&ofproto->facets)); |
1347 | ||
1348 | cls_cursor_init(&cursor, &ofproto->facets, NULL); | |
1349 | CLS_CURSOR_FOR_EACH (facet, cr, &cursor) { | |
04d08d54 EJ |
1350 | n_subfacets += list_size(&facet->subfacets); |
1351 | } | |
1352 | simap_increase(usage, "subfacets", n_subfacets); | |
0d085684 BP |
1353 | } |
1354 | ||
abe529af BP |
1355 | static void |
1356 | flush(struct ofproto *ofproto_) | |
1357 | { | |
1358 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
acf60855 JP |
1359 | struct subfacet *subfacet, *next_subfacet; |
1360 | struct subfacet *batch[SUBFACET_DESTROY_MAX_BATCH]; | |
1361 | int n_batch; | |
b0f7b9b5 | 1362 | |
acf60855 JP |
1363 | n_batch = 0; |
1364 | HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node, | |
04d08d54 EJ |
1365 | &ofproto->backer->subfacets) { |
1366 | if (ofproto_dpif_cast(subfacet->facet->rule->up.ofproto) != ofproto) { | |
1367 | continue; | |
1368 | } | |
1369 | ||
acf60855 JP |
1370 | if (subfacet->path != SF_NOT_INSTALLED) { |
1371 | batch[n_batch++] = subfacet; | |
1372 | if (n_batch >= SUBFACET_DESTROY_MAX_BATCH) { | |
04d08d54 | 1373 | subfacet_destroy_batch(ofproto->backer, batch, n_batch); |
acf60855 JP |
1374 | n_batch = 0; |
1375 | } | |
1376 | } else { | |
1377 | subfacet_destroy(subfacet); | |
b0f7b9b5 | 1378 | } |
abe529af | 1379 | } |
acf60855 JP |
1380 | |
1381 | if (n_batch > 0) { | |
04d08d54 | 1382 | subfacet_destroy_batch(ofproto->backer, batch, n_batch); |
acf60855 | 1383 | } |
abe529af BP |
1384 | } |
1385 | ||
6c1491fb BP |
1386 | static void |
1387 | get_features(struct ofproto *ofproto_ OVS_UNUSED, | |
9e1fd49b | 1388 | bool *arp_match_ip, enum ofputil_action_bitmap *actions) |
6c1491fb BP |
1389 | { |
1390 | *arp_match_ip = true; | |
9e1fd49b BP |
1391 | *actions = (OFPUTIL_A_OUTPUT | |
1392 | OFPUTIL_A_SET_VLAN_VID | | |
1393 | OFPUTIL_A_SET_VLAN_PCP | | |
1394 | OFPUTIL_A_STRIP_VLAN | | |
1395 | OFPUTIL_A_SET_DL_SRC | | |
1396 | OFPUTIL_A_SET_DL_DST | | |
1397 | OFPUTIL_A_SET_NW_SRC | | |
1398 | OFPUTIL_A_SET_NW_DST | | |
1399 | OFPUTIL_A_SET_NW_TOS | | |
1400 | OFPUTIL_A_SET_TP_SRC | | |
1401 | OFPUTIL_A_SET_TP_DST | | |
1402 | OFPUTIL_A_ENQUEUE); | |
6c1491fb BP |
1403 | } |
1404 | ||
1405 | static void | |
307975da | 1406 | get_tables(struct ofproto *ofproto_, struct ofp12_table_stats *ots) |
6c1491fb BP |
1407 | { |
1408 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
a8d9304d | 1409 | struct dpif_dp_stats s; |
7fd51d39 | 1410 | uint64_t n_miss, n_no_pkt_in, n_bytes, n_dropped_frags; |
7e741ffb | 1411 | uint64_t n_lookup; |
6c1491fb BP |
1412 | |
1413 | strcpy(ots->name, "classifier"); | |
1414 | ||
acf60855 | 1415 | dpif_get_dp_stats(ofproto->backer->dpif, &s); |
7e741ffb JG |
1416 | rule_get_stats(&ofproto->miss_rule->up, &n_miss, &n_bytes); |
1417 | rule_get_stats(&ofproto->no_packet_in_rule->up, &n_no_pkt_in, &n_bytes); | |
7fd51d39 | 1418 | rule_get_stats(&ofproto->drop_frags_rule->up, &n_dropped_frags, &n_bytes); |
acf60855 | 1419 | |
7fd51d39 | 1420 | n_lookup = s.n_hit + s.n_missed - n_dropped_frags; |
7e741ffb JG |
1421 | ots->lookup_count = htonll(n_lookup); |
1422 | ots->matched_count = htonll(n_lookup - n_miss - n_no_pkt_in); | |
6c1491fb BP |
1423 | } |
1424 | ||
abe529af BP |
1425 | static struct ofport * |
1426 | port_alloc(void) | |
1427 | { | |
1428 | struct ofport_dpif *port = xmalloc(sizeof *port); | |
1429 | return &port->up; | |
1430 | } | |
1431 | ||
1432 | static void | |
1433 | port_dealloc(struct ofport *port_) | |
1434 | { | |
1435 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1436 | free(port); | |
1437 | } | |
1438 | ||
1439 | static int | |
1440 | port_construct(struct ofport *port_) | |
1441 | { | |
1442 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1443 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
b9ad7294 | 1444 | const struct netdev *netdev = port->up.netdev; |
3aa30359 | 1445 | char namebuf[NETDEV_VPORT_NAME_BUFSIZE]; |
e1b1d06a JP |
1446 | struct dpif_port dpif_port; |
1447 | int error; | |
abe529af | 1448 | |
2cc3c58e | 1449 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
1450 | port->bundle = NULL; |
1451 | port->cfm = NULL; | |
ccc09689 | 1452 | port->bfd = NULL; |
abe529af | 1453 | port->tag = tag_create_random(); |
d5ffa7f2 | 1454 | port->may_enable = true; |
21f7563c JP |
1455 | port->stp_port = NULL; |
1456 | port->stp_state = STP_DISABLED; | |
b9ad7294 | 1457 | port->tnl_port = NULL; |
8b36f51e | 1458 | hmap_init(&port->priorities); |
52a90c29 BP |
1459 | port->realdev_ofp_port = 0; |
1460 | port->vlandev_vid = 0; | |
b9ad7294 | 1461 | port->carrier_seq = netdev_get_carrier_resets(netdev); |
abe529af | 1462 | |
b9ad7294 | 1463 | if (netdev_vport_is_patch(netdev)) { |
743cea45 NM |
1464 | /* By bailing out here, we don't submit the port to the sFlow module |
1465 | * to be considered for counter polling export. This is correct | |
1466 | * because the patch port represents an interface that sFlow considers | |
1467 | * to be "internal" to the switch as a whole, and therefore not an | |
1468 | * candidate for counter polling. */ | |
0a740f48 EJ |
1469 | port->odp_port = OVSP_NONE; |
1470 | return 0; | |
1471 | } | |
1472 | ||
acf60855 | 1473 | error = dpif_port_query_by_name(ofproto->backer->dpif, |
3aa30359 BP |
1474 | netdev_vport_get_dpif_port(netdev, namebuf, |
1475 | sizeof namebuf), | |
e1b1d06a JP |
1476 | &dpif_port); |
1477 | if (error) { | |
1478 | return error; | |
1479 | } | |
1480 | ||
1481 | port->odp_port = dpif_port.port_no; | |
1482 | ||
b9ad7294 EJ |
1483 | if (netdev_get_tunnel_config(netdev)) { |
1484 | port->tnl_port = tnl_port_add(&port->up, port->odp_port); | |
1485 | } else { | |
1486 | /* Sanity-check that a mapping doesn't already exist. This | |
1487 | * shouldn't happen for non-tunnel ports. */ | |
1488 | if (odp_port_to_ofp_port(ofproto, port->odp_port) != OFPP_NONE) { | |
1489 | VLOG_ERR("port %s already has an OpenFlow port number", | |
1490 | dpif_port.name); | |
da78d43d | 1491 | dpif_port_destroy(&dpif_port); |
b9ad7294 EJ |
1492 | return EBUSY; |
1493 | } | |
e1b1d06a | 1494 | |
b9ad7294 EJ |
1495 | hmap_insert(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node, |
1496 | hash_int(port->odp_port, 0)); | |
1497 | } | |
da78d43d | 1498 | dpif_port_destroy(&dpif_port); |
e1b1d06a | 1499 | |
abe529af | 1500 | if (ofproto->sflow) { |
e1b1d06a | 1501 | dpif_sflow_add_port(ofproto->sflow, port_, port->odp_port); |
abe529af BP |
1502 | } |
1503 | ||
1504 | return 0; | |
1505 | } | |
1506 | ||
1507 | static void | |
1508 | port_destruct(struct ofport *port_) | |
1509 | { | |
1510 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1511 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
02f8d646 | 1512 | const char *devname = netdev_get_name(port->up.netdev); |
3aa30359 BP |
1513 | char namebuf[NETDEV_VPORT_NAME_BUFSIZE]; |
1514 | const char *dp_port_name; | |
abe529af | 1515 | |
3aa30359 BP |
1516 | dp_port_name = netdev_vport_get_dpif_port(port->up.netdev, namebuf, |
1517 | sizeof namebuf); | |
a614d823 | 1518 | if (dpif_port_exists(ofproto->backer->dpif, dp_port_name)) { |
acf60855 JP |
1519 | /* The underlying device is still there, so delete it. This |
1520 | * happens when the ofproto is being destroyed, since the caller | |
1521 | * assumes that removal of attached ports will happen as part of | |
1522 | * destruction. */ | |
a614d823 KM |
1523 | if (!port->tnl_port) { |
1524 | dpif_port_del(ofproto->backer->dpif, port->odp_port); | |
1525 | } | |
1526 | ofproto->backer->need_revalidate = REV_RECONFIGURE; | |
acf60855 JP |
1527 | } |
1528 | ||
b9ad7294 | 1529 | if (port->odp_port != OVSP_NONE && !port->tnl_port) { |
0a740f48 EJ |
1530 | hmap_remove(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node); |
1531 | } | |
1532 | ||
b9ad7294 | 1533 | tnl_port_del(port->tnl_port); |
02f8d646 | 1534 | sset_find_and_delete(&ofproto->ports, devname); |
0a740f48 | 1535 | sset_find_and_delete(&ofproto->ghost_ports, devname); |
2cc3c58e | 1536 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af | 1537 | bundle_remove(port_); |
a5610457 | 1538 | set_cfm(port_, NULL); |
8aee94b6 | 1539 | set_bfd(port_, NULL); |
abe529af | 1540 | if (ofproto->sflow) { |
bae473fe | 1541 | dpif_sflow_del_port(ofproto->sflow, port->odp_port); |
abe529af | 1542 | } |
8b36f51e EJ |
1543 | |
1544 | ofport_clear_priorities(port); | |
1545 | hmap_destroy(&port->priorities); | |
abe529af BP |
1546 | } |
1547 | ||
1548 | static void | |
1549 | port_modified(struct ofport *port_) | |
1550 | { | |
1551 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1552 | ||
1553 | if (port->bundle && port->bundle->bond) { | |
1554 | bond_slave_set_netdev(port->bundle->bond, port, port->up.netdev); | |
1555 | } | |
9d46b444 EJ |
1556 | |
1557 | if (port->cfm) { | |
1558 | cfm_set_netdev(port->cfm, port->up.netdev); | |
1559 | } | |
f1e78bbd EJ |
1560 | |
1561 | if (port->tnl_port && tnl_port_reconfigure(&port->up, port->odp_port, | |
1562 | &port->tnl_port)) { | |
1563 | ofproto_dpif_cast(port->up.ofproto)->backer->need_revalidate = true; | |
1564 | } | |
abe529af BP |
1565 | } |
1566 | ||
1567 | static void | |
9e1fd49b | 1568 | port_reconfigured(struct ofport *port_, enum ofputil_port_config old_config) |
abe529af BP |
1569 | { |
1570 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1571 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
9e1fd49b | 1572 | enum ofputil_port_config changed = old_config ^ port->up.pp.config; |
abe529af | 1573 | |
9e1fd49b | 1574 | if (changed & (OFPUTIL_PC_NO_RECV | OFPUTIL_PC_NO_RECV_STP | |
c57b2226 BP |
1575 | OFPUTIL_PC_NO_FWD | OFPUTIL_PC_NO_FLOOD | |
1576 | OFPUTIL_PC_NO_PACKET_IN)) { | |
2cc3c58e | 1577 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
7bde8dd8 | 1578 | |
9e1fd49b | 1579 | if (changed & OFPUTIL_PC_NO_FLOOD && port->bundle) { |
7bde8dd8 JP |
1580 | bundle_update(port->bundle); |
1581 | } | |
abe529af BP |
1582 | } |
1583 | } | |
1584 | ||
1585 | static int | |
1586 | set_sflow(struct ofproto *ofproto_, | |
1587 | const struct ofproto_sflow_options *sflow_options) | |
1588 | { | |
1589 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
bae473fe | 1590 | struct dpif_sflow *ds = ofproto->sflow; |
6ff686f2 | 1591 | |
abe529af | 1592 | if (sflow_options) { |
bae473fe | 1593 | if (!ds) { |
abe529af BP |
1594 | struct ofport_dpif *ofport; |
1595 | ||
4213f19d | 1596 | ds = ofproto->sflow = dpif_sflow_create(); |
abe529af | 1597 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { |
e1b1d06a | 1598 | dpif_sflow_add_port(ds, &ofport->up, ofport->odp_port); |
abe529af | 1599 | } |
2cc3c58e | 1600 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af | 1601 | } |
bae473fe | 1602 | dpif_sflow_set_options(ds, sflow_options); |
abe529af | 1603 | } else { |
6ff686f2 PS |
1604 | if (ds) { |
1605 | dpif_sflow_destroy(ds); | |
2cc3c58e | 1606 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
6ff686f2 PS |
1607 | ofproto->sflow = NULL; |
1608 | } | |
abe529af BP |
1609 | } |
1610 | return 0; | |
1611 | } | |
1612 | ||
29089a54 RL |
1613 | static int |
1614 | set_ipfix( | |
1615 | struct ofproto *ofproto_, | |
1616 | const struct ofproto_ipfix_bridge_exporter_options *bridge_exporter_options, | |
1617 | const struct ofproto_ipfix_flow_exporter_options *flow_exporters_options, | |
1618 | size_t n_flow_exporters_options) | |
1619 | { | |
1620 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1621 | struct dpif_ipfix *di = ofproto->ipfix; | |
1622 | ||
1623 | if (bridge_exporter_options || flow_exporters_options) { | |
1624 | if (!di) { | |
1625 | di = ofproto->ipfix = dpif_ipfix_create(); | |
1626 | } | |
1627 | dpif_ipfix_set_options( | |
1628 | di, bridge_exporter_options, flow_exporters_options, | |
1629 | n_flow_exporters_options); | |
1630 | } else { | |
1631 | if (di) { | |
1632 | dpif_ipfix_destroy(di); | |
1633 | ofproto->ipfix = NULL; | |
1634 | } | |
1635 | } | |
1636 | return 0; | |
1637 | } | |
1638 | ||
abe529af | 1639 | static int |
a5610457 | 1640 | set_cfm(struct ofport *ofport_, const struct cfm_settings *s) |
abe529af BP |
1641 | { |
1642 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1643 | int error; | |
1644 | ||
a5610457 | 1645 | if (!s) { |
abe529af BP |
1646 | error = 0; |
1647 | } else { | |
1648 | if (!ofport->cfm) { | |
8c977421 EJ |
1649 | struct ofproto_dpif *ofproto; |
1650 | ||
1651 | ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2cc3c58e | 1652 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
90967e95 | 1653 | ofport->cfm = cfm_create(ofport->up.netdev); |
abe529af BP |
1654 | } |
1655 | ||
a5610457 | 1656 | if (cfm_configure(ofport->cfm, s)) { |
abe529af BP |
1657 | return 0; |
1658 | } | |
1659 | ||
1660 | error = EINVAL; | |
1661 | } | |
1662 | cfm_destroy(ofport->cfm); | |
1663 | ofport->cfm = NULL; | |
1664 | return error; | |
1665 | } | |
1666 | ||
9a9e3786 BP |
1667 | static bool |
1668 | get_cfm_status(const struct ofport *ofport_, | |
1669 | struct ofproto_cfm_status *status) | |
1de11730 EJ |
1670 | { |
1671 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1672 | ||
1673 | if (ofport->cfm) { | |
9a9e3786 BP |
1674 | status->faults = cfm_get_fault(ofport->cfm); |
1675 | status->remote_opstate = cfm_get_opup(ofport->cfm); | |
1676 | status->health = cfm_get_health(ofport->cfm); | |
1677 | cfm_get_remote_mpids(ofport->cfm, &status->rmps, &status->n_rmps); | |
1678 | return true; | |
1de11730 | 1679 | } else { |
9a9e3786 | 1680 | return false; |
1de11730 EJ |
1681 | } |
1682 | } | |
ccc09689 EJ |
1683 | |
1684 | static int | |
1685 | set_bfd(struct ofport *ofport_, const struct smap *cfg) | |
1686 | { | |
1687 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto); | |
1688 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1689 | struct bfd *old; | |
1690 | ||
1691 | old = ofport->bfd; | |
1692 | ofport->bfd = bfd_configure(old, netdev_get_name(ofport->up.netdev), cfg); | |
1693 | if (ofport->bfd != old) { | |
1694 | ofproto->backer->need_revalidate = REV_RECONFIGURE; | |
1695 | } | |
1696 | ||
1697 | return 0; | |
1698 | } | |
1699 | ||
1700 | static int | |
1701 | get_bfd_status(struct ofport *ofport_, struct smap *smap) | |
1702 | { | |
1703 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1704 | ||
1705 | if (ofport->bfd) { | |
1706 | bfd_get_status(ofport->bfd, smap); | |
1707 | return 0; | |
1708 | } else { | |
1709 | return ENOENT; | |
1710 | } | |
1711 | } | |
abe529af | 1712 | \f |
21f7563c JP |
1713 | /* Spanning Tree. */ |
1714 | ||
1715 | static void | |
1716 | send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_) | |
1717 | { | |
1718 | struct ofproto_dpif *ofproto = ofproto_; | |
1719 | struct stp_port *sp = stp_get_port(ofproto->stp, port_num); | |
1720 | struct ofport_dpif *ofport; | |
1721 | ||
1722 | ofport = stp_port_get_aux(sp); | |
1723 | if (!ofport) { | |
1724 | VLOG_WARN_RL(&rl, "%s: cannot send BPDU on unknown port %d", | |
1725 | ofproto->up.name, port_num); | |
1726 | } else { | |
1727 | struct eth_header *eth = pkt->l2; | |
1728 | ||
1729 | netdev_get_etheraddr(ofport->up.netdev, eth->eth_src); | |
1730 | if (eth_addr_is_zero(eth->eth_src)) { | |
1731 | VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d " | |
1732 | "with unknown MAC", ofproto->up.name, port_num); | |
1733 | } else { | |
97d6520b | 1734 | send_packet(ofport, pkt); |
21f7563c JP |
1735 | } |
1736 | } | |
1737 | ofpbuf_delete(pkt); | |
1738 | } | |
1739 | ||
1740 | /* Configures STP on 'ofproto_' using the settings defined in 's'. */ | |
1741 | static int | |
1742 | set_stp(struct ofproto *ofproto_, const struct ofproto_stp_settings *s) | |
1743 | { | |
1744 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1745 | ||
1746 | /* Only revalidate flows if the configuration changed. */ | |
1747 | if (!s != !ofproto->stp) { | |
2cc3c58e | 1748 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
21f7563c JP |
1749 | } |
1750 | ||
1751 | if (s) { | |
1752 | if (!ofproto->stp) { | |
1753 | ofproto->stp = stp_create(ofproto_->name, s->system_id, | |
1754 | send_bpdu_cb, ofproto); | |
1755 | ofproto->stp_last_tick = time_msec(); | |
1756 | } | |
1757 | ||
1758 | stp_set_bridge_id(ofproto->stp, s->system_id); | |
1759 | stp_set_bridge_priority(ofproto->stp, s->priority); | |
1760 | stp_set_hello_time(ofproto->stp, s->hello_time); | |
1761 | stp_set_max_age(ofproto->stp, s->max_age); | |
1762 | stp_set_forward_delay(ofproto->stp, s->fwd_delay); | |
1763 | } else { | |
851bf71d EJ |
1764 | struct ofport *ofport; |
1765 | ||
1766 | HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) { | |
1767 | set_stp_port(ofport, NULL); | |
1768 | } | |
1769 | ||
21f7563c JP |
1770 | stp_destroy(ofproto->stp); |
1771 | ofproto->stp = NULL; | |
1772 | } | |
1773 | ||
1774 | return 0; | |
1775 | } | |
1776 | ||
1777 | static int | |
1778 | get_stp_status(struct ofproto *ofproto_, struct ofproto_stp_status *s) | |
1779 | { | |
1780 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1781 | ||
1782 | if (ofproto->stp) { | |
1783 | s->enabled = true; | |
1784 | s->bridge_id = stp_get_bridge_id(ofproto->stp); | |
1785 | s->designated_root = stp_get_designated_root(ofproto->stp); | |
1786 | s->root_path_cost = stp_get_root_path_cost(ofproto->stp); | |
1787 | } else { | |
1788 | s->enabled = false; | |
1789 | } | |
1790 | ||
1791 | return 0; | |
1792 | } | |
1793 | ||
1794 | static void | |
1795 | update_stp_port_state(struct ofport_dpif *ofport) | |
1796 | { | |
1797 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
1798 | enum stp_state state; | |
1799 | ||
1800 | /* Figure out new state. */ | |
1801 | state = ofport->stp_port ? stp_port_get_state(ofport->stp_port) | |
1802 | : STP_DISABLED; | |
1803 | ||
1804 | /* Update state. */ | |
1805 | if (ofport->stp_state != state) { | |
9e1fd49b | 1806 | enum ofputil_port_state of_state; |
21f7563c JP |
1807 | bool fwd_change; |
1808 | ||
1809 | VLOG_DBG_RL(&rl, "port %s: STP state changed from %s to %s", | |
1810 | netdev_get_name(ofport->up.netdev), | |
1811 | stp_state_name(ofport->stp_state), | |
1812 | stp_state_name(state)); | |
1813 | if (stp_learn_in_state(ofport->stp_state) | |
1814 | != stp_learn_in_state(state)) { | |
1815 | /* xxx Learning action flows should also be flushed. */ | |
2cc3c58e EJ |
1816 | mac_learning_flush(ofproto->ml, |
1817 | &ofproto->backer->revalidate_set); | |
21f7563c JP |
1818 | } |
1819 | fwd_change = stp_forward_in_state(ofport->stp_state) | |
1820 | != stp_forward_in_state(state); | |
1821 | ||
2cc3c58e | 1822 | ofproto->backer->need_revalidate = REV_STP; |
21f7563c JP |
1823 | ofport->stp_state = state; |
1824 | ofport->stp_state_entered = time_msec(); | |
1825 | ||
b308140a | 1826 | if (fwd_change && ofport->bundle) { |
21f7563c JP |
1827 | bundle_update(ofport->bundle); |
1828 | } | |
1829 | ||
1830 | /* Update the STP state bits in the OpenFlow port description. */ | |
9e1fd49b BP |
1831 | of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK; |
1832 | of_state |= (state == STP_LISTENING ? OFPUTIL_PS_STP_LISTEN | |
1833 | : state == STP_LEARNING ? OFPUTIL_PS_STP_LEARN | |
1834 | : state == STP_FORWARDING ? OFPUTIL_PS_STP_FORWARD | |
1835 | : state == STP_BLOCKING ? OFPUTIL_PS_STP_BLOCK | |
1836 | : 0); | |
21f7563c JP |
1837 | ofproto_port_set_state(&ofport->up, of_state); |
1838 | } | |
1839 | } | |
1840 | ||
1841 | /* Configures STP on 'ofport_' using the settings defined in 's'. The | |
1842 | * caller is responsible for assigning STP port numbers and ensuring | |
1843 | * there are no duplicates. */ | |
1844 | static int | |
1845 | set_stp_port(struct ofport *ofport_, | |
1846 | const struct ofproto_port_stp_settings *s) | |
1847 | { | |
1848 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1849 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
1850 | struct stp_port *sp = ofport->stp_port; | |
1851 | ||
1852 | if (!s || !s->enable) { | |
1853 | if (sp) { | |
1854 | ofport->stp_port = NULL; | |
1855 | stp_port_disable(sp); | |
ecd12731 | 1856 | update_stp_port_state(ofport); |
21f7563c JP |
1857 | } |
1858 | return 0; | |
1859 | } else if (sp && stp_port_no(sp) != s->port_num | |
1860 | && ofport == stp_port_get_aux(sp)) { | |
1861 | /* The port-id changed, so disable the old one if it's not | |
1862 | * already in use by another port. */ | |
1863 | stp_port_disable(sp); | |
1864 | } | |
1865 | ||
1866 | sp = ofport->stp_port = stp_get_port(ofproto->stp, s->port_num); | |
1867 | stp_port_enable(sp); | |
1868 | ||
1869 | stp_port_set_aux(sp, ofport); | |
1870 | stp_port_set_priority(sp, s->priority); | |
1871 | stp_port_set_path_cost(sp, s->path_cost); | |
1872 | ||
1873 | update_stp_port_state(ofport); | |
1874 | ||
1875 | return 0; | |
1876 | } | |
1877 | ||
1878 | static int | |
1879 | get_stp_port_status(struct ofport *ofport_, | |
1880 | struct ofproto_port_stp_status *s) | |
1881 | { | |
1882 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1883 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
1884 | struct stp_port *sp = ofport->stp_port; | |
1885 | ||
1886 | if (!ofproto->stp || !sp) { | |
1887 | s->enabled = false; | |
1888 | return 0; | |
1889 | } | |
1890 | ||
1891 | s->enabled = true; | |
1892 | s->port_id = stp_port_get_id(sp); | |
1893 | s->state = stp_port_get_state(sp); | |
1894 | s->sec_in_state = (time_msec() - ofport->stp_state_entered) / 1000; | |
1895 | s->role = stp_port_get_role(sp); | |
80740385 | 1896 | stp_port_get_counts(sp, &s->tx_count, &s->rx_count, &s->error_count); |
21f7563c JP |
1897 | |
1898 | return 0; | |
1899 | } | |
1900 | ||
1901 | static void | |
1902 | stp_run(struct ofproto_dpif *ofproto) | |
1903 | { | |
1904 | if (ofproto->stp) { | |
1905 | long long int now = time_msec(); | |
1906 | long long int elapsed = now - ofproto->stp_last_tick; | |
1907 | struct stp_port *sp; | |
1908 | ||
1909 | if (elapsed > 0) { | |
1910 | stp_tick(ofproto->stp, MIN(INT_MAX, elapsed)); | |
1911 | ofproto->stp_last_tick = now; | |
1912 | } | |
1913 | while (stp_get_changed_port(ofproto->stp, &sp)) { | |
1914 | struct ofport_dpif *ofport = stp_port_get_aux(sp); | |
1915 | ||
1916 | if (ofport) { | |
1917 | update_stp_port_state(ofport); | |
1918 | } | |
1919 | } | |
6ae50723 EJ |
1920 | |
1921 | if (stp_check_and_reset_fdb_flush(ofproto->stp)) { | |
2cc3c58e | 1922 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); |
6ae50723 | 1923 | } |
21f7563c JP |
1924 | } |
1925 | } | |
1926 | ||
1927 | static void | |
1928 | stp_wait(struct ofproto_dpif *ofproto) | |
1929 | { | |
1930 | if (ofproto->stp) { | |
1931 | poll_timer_wait(1000); | |
1932 | } | |
1933 | } | |
1934 | ||
642dc74d JP |
1935 | /* Returns true if STP should process 'flow'. Sets fields in 'wc' that |
1936 | * were used to make the determination.*/ | |
db7d4e46 | 1937 | bool |
642dc74d | 1938 | stp_should_process_flow(const struct flow *flow, struct flow_wildcards *wc) |
21f7563c | 1939 | { |
642dc74d | 1940 | memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst); |
21f7563c JP |
1941 | return eth_addr_equals(flow->dl_dst, eth_addr_stp); |
1942 | } | |
1943 | ||
db7d4e46 | 1944 | void |
21f7563c JP |
1945 | stp_process_packet(const struct ofport_dpif *ofport, |
1946 | const struct ofpbuf *packet) | |
1947 | { | |
1948 | struct ofpbuf payload = *packet; | |
1949 | struct eth_header *eth = payload.data; | |
1950 | struct stp_port *sp = ofport->stp_port; | |
1951 | ||
1952 | /* Sink packets on ports that have STP disabled when the bridge has | |
1953 | * STP enabled. */ | |
1954 | if (!sp || stp_port_get_state(sp) == STP_DISABLED) { | |
1955 | return; | |
1956 | } | |
1957 | ||
1958 | /* Trim off padding on payload. */ | |
c573540b BP |
1959 | if (payload.size > ntohs(eth->eth_type) + ETH_HEADER_LEN) { |
1960 | payload.size = ntohs(eth->eth_type) + ETH_HEADER_LEN; | |
21f7563c JP |
1961 | } |
1962 | ||
1963 | if (ofpbuf_try_pull(&payload, ETH_HEADER_LEN + LLC_HEADER_LEN)) { | |
1964 | stp_received_bpdu(sp, payload.data, payload.size); | |
1965 | } | |
1966 | } | |
1967 | \f | |
cdc3ab65 EJ |
1968 | int |
1969 | ofproto_dpif_queue_to_priority(const struct ofproto_dpif *ofproto, | |
1970 | uint32_t queue_id, uint32_t *priority) | |
1971 | { | |
1972 | return dpif_queue_to_priority(ofproto->backer->dpif, queue_id, priority); | |
1973 | } | |
1974 | ||
ca077186 | 1975 | static struct priority_to_dscp * |
8b36f51e EJ |
1976 | get_priority(const struct ofport_dpif *ofport, uint32_t priority) |
1977 | { | |
1978 | struct priority_to_dscp *pdscp; | |
1979 | uint32_t hash; | |
1980 | ||
1981 | hash = hash_int(priority, 0); | |
1982 | HMAP_FOR_EACH_IN_BUCKET (pdscp, hmap_node, hash, &ofport->priorities) { | |
1983 | if (pdscp->priority == priority) { | |
1984 | return pdscp; | |
1985 | } | |
1986 | } | |
1987 | return NULL; | |
1988 | } | |
1989 | ||
ca077186 EJ |
1990 | bool |
1991 | ofproto_dpif_dscp_from_priority(const struct ofport_dpif *ofport, | |
1992 | uint32_t priority, uint8_t *dscp) | |
1993 | { | |
1994 | struct priority_to_dscp *pdscp = get_priority(ofport, priority); | |
1995 | *dscp = pdscp ? pdscp->dscp : 0; | |
1996 | return pdscp != NULL; | |
1997 | } | |
1998 | ||
8b36f51e EJ |
1999 | static void |
2000 | ofport_clear_priorities(struct ofport_dpif *ofport) | |
2001 | { | |
2002 | struct priority_to_dscp *pdscp, *next; | |
2003 | ||
2004 | HMAP_FOR_EACH_SAFE (pdscp, next, hmap_node, &ofport->priorities) { | |
2005 | hmap_remove(&ofport->priorities, &pdscp->hmap_node); | |
2006 | free(pdscp); | |
2007 | } | |
2008 | } | |
2009 | ||
2010 | static int | |
2011 | set_queues(struct ofport *ofport_, | |
2012 | const struct ofproto_port_queue *qdscp_list, | |
2013 | size_t n_qdscp) | |
2014 | { | |
2015 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2016 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2017 | struct hmap new = HMAP_INITIALIZER(&new); | |
2018 | size_t i; | |
2019 | ||
2020 | for (i = 0; i < n_qdscp; i++) { | |
2021 | struct priority_to_dscp *pdscp; | |
2022 | uint32_t priority; | |
2023 | uint8_t dscp; | |
2024 | ||
2025 | dscp = (qdscp_list[i].dscp << 2) & IP_DSCP_MASK; | |
acf60855 | 2026 | if (dpif_queue_to_priority(ofproto->backer->dpif, qdscp_list[i].queue, |
8b36f51e EJ |
2027 | &priority)) { |
2028 | continue; | |
2029 | } | |
2030 | ||
2031 | pdscp = get_priority(ofport, priority); | |
2032 | if (pdscp) { | |
2033 | hmap_remove(&ofport->priorities, &pdscp->hmap_node); | |
2034 | } else { | |
2035 | pdscp = xmalloc(sizeof *pdscp); | |
2036 | pdscp->priority = priority; | |
2037 | pdscp->dscp = dscp; | |
2cc3c58e | 2038 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
8b36f51e EJ |
2039 | } |
2040 | ||
2041 | if (pdscp->dscp != dscp) { | |
2042 | pdscp->dscp = dscp; | |
2cc3c58e | 2043 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
8b36f51e EJ |
2044 | } |
2045 | ||
2046 | hmap_insert(&new, &pdscp->hmap_node, hash_int(pdscp->priority, 0)); | |
2047 | } | |
2048 | ||
2049 | if (!hmap_is_empty(&ofport->priorities)) { | |
2050 | ofport_clear_priorities(ofport); | |
2cc3c58e | 2051 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
8b36f51e EJ |
2052 | } |
2053 | ||
2054 | hmap_swap(&new, &ofport->priorities); | |
2055 | hmap_destroy(&new); | |
2056 | ||
2057 | return 0; | |
2058 | } | |
2059 | \f | |
abe529af BP |
2060 | /* Bundles. */ |
2061 | ||
b44a10b7 BP |
2062 | /* Expires all MAC learning entries associated with 'bundle' and forces its |
2063 | * ofproto to revalidate every flow. | |
2064 | * | |
2065 | * Normally MAC learning entries are removed only from the ofproto associated | |
2066 | * with 'bundle', but if 'all_ofprotos' is true, then the MAC learning entries | |
2067 | * are removed from every ofproto. When patch ports and SLB bonds are in use | |
2068 | * and a VM migration happens and the gratuitous ARPs are somehow lost, this | |
2069 | * avoids a MAC_ENTRY_IDLE_TIME delay before the migrated VM can communicate | |
2070 | * with the host from which it migrated. */ | |
abe529af | 2071 | static void |
b44a10b7 | 2072 | bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos) |
abe529af BP |
2073 | { |
2074 | struct ofproto_dpif *ofproto = bundle->ofproto; | |
2075 | struct mac_learning *ml = ofproto->ml; | |
2076 | struct mac_entry *mac, *next_mac; | |
2077 | ||
2cc3c58e | 2078 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2079 | LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) { |
2080 | if (mac->port.p == bundle) { | |
b44a10b7 BP |
2081 | if (all_ofprotos) { |
2082 | struct ofproto_dpif *o; | |
2083 | ||
2084 | HMAP_FOR_EACH (o, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
2085 | if (o != ofproto) { | |
2086 | struct mac_entry *e; | |
2087 | ||
2088 | e = mac_learning_lookup(o->ml, mac->mac, mac->vlan, | |
2089 | NULL); | |
2090 | if (e) { | |
b44a10b7 BP |
2091 | mac_learning_expire(o->ml, e); |
2092 | } | |
2093 | } | |
2094 | } | |
2095 | } | |
2096 | ||
abe529af BP |
2097 | mac_learning_expire(ml, mac); |
2098 | } | |
2099 | } | |
2100 | } | |
2101 | ||
2102 | static struct ofbundle * | |
2103 | bundle_lookup(const struct ofproto_dpif *ofproto, void *aux) | |
2104 | { | |
2105 | struct ofbundle *bundle; | |
2106 | ||
2107 | HMAP_FOR_EACH_IN_BUCKET (bundle, hmap_node, hash_pointer(aux, 0), | |
2108 | &ofproto->bundles) { | |
2109 | if (bundle->aux == aux) { | |
2110 | return bundle; | |
2111 | } | |
2112 | } | |
2113 | return NULL; | |
2114 | } | |
2115 | ||
2116 | /* Looks up each of the 'n_auxes' pointers in 'auxes' as bundles and adds the | |
2117 | * ones that are found to 'bundles'. */ | |
2118 | static void | |
2119 | bundle_lookup_multiple(struct ofproto_dpif *ofproto, | |
2120 | void **auxes, size_t n_auxes, | |
2121 | struct hmapx *bundles) | |
2122 | { | |
2123 | size_t i; | |
2124 | ||
2125 | hmapx_init(bundles); | |
2126 | for (i = 0; i < n_auxes; i++) { | |
2127 | struct ofbundle *bundle = bundle_lookup(ofproto, auxes[i]); | |
2128 | if (bundle) { | |
2129 | hmapx_add(bundles, bundle); | |
2130 | } | |
2131 | } | |
2132 | } | |
2133 | ||
7bde8dd8 JP |
2134 | static void |
2135 | bundle_update(struct ofbundle *bundle) | |
2136 | { | |
2137 | struct ofport_dpif *port; | |
2138 | ||
2139 | bundle->floodable = true; | |
2140 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
9e1fd49b BP |
2141 | if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD |
2142 | || !stp_forward_in_state(port->stp_state)) { | |
7bde8dd8 JP |
2143 | bundle->floodable = false; |
2144 | break; | |
2145 | } | |
2146 | } | |
2147 | } | |
2148 | ||
abe529af BP |
2149 | static void |
2150 | bundle_del_port(struct ofport_dpif *port) | |
2151 | { | |
2152 | struct ofbundle *bundle = port->bundle; | |
2153 | ||
2cc3c58e | 2154 | bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE; |
6f77f4ae | 2155 | |
abe529af BP |
2156 | list_remove(&port->bundle_node); |
2157 | port->bundle = NULL; | |
2158 | ||
2159 | if (bundle->lacp) { | |
2160 | lacp_slave_unregister(bundle->lacp, port); | |
2161 | } | |
2162 | if (bundle->bond) { | |
2163 | bond_slave_unregister(bundle->bond, port); | |
2164 | } | |
2165 | ||
7bde8dd8 | 2166 | bundle_update(bundle); |
abe529af BP |
2167 | } |
2168 | ||
2169 | static bool | |
213b00cf | 2170 | bundle_add_port(struct ofbundle *bundle, uint16_t ofp_port, |
df53d41c | 2171 | struct lacp_slave_settings *lacp) |
abe529af BP |
2172 | { |
2173 | struct ofport_dpif *port; | |
2174 | ||
2175 | port = get_ofp_port(bundle->ofproto, ofp_port); | |
2176 | if (!port) { | |
2177 | return false; | |
2178 | } | |
2179 | ||
2180 | if (port->bundle != bundle) { | |
2cc3c58e | 2181 | bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2182 | if (port->bundle) { |
2183 | bundle_del_port(port); | |
2184 | } | |
2185 | ||
2186 | port->bundle = bundle; | |
2187 | list_push_back(&bundle->ports, &port->bundle_node); | |
9e1fd49b BP |
2188 | if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD |
2189 | || !stp_forward_in_state(port->stp_state)) { | |
abe529af BP |
2190 | bundle->floodable = false; |
2191 | } | |
2192 | } | |
2193 | if (lacp) { | |
2cc3c58e | 2194 | bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2195 | lacp_slave_register(bundle->lacp, port, lacp); |
2196 | } | |
2197 | ||
2198 | return true; | |
2199 | } | |
2200 | ||
2201 | static void | |
2202 | bundle_destroy(struct ofbundle *bundle) | |
2203 | { | |
2204 | struct ofproto_dpif *ofproto; | |
2205 | struct ofport_dpif *port, *next_port; | |
2206 | int i; | |
2207 | ||
2208 | if (!bundle) { | |
2209 | return; | |
2210 | } | |
2211 | ||
2212 | ofproto = bundle->ofproto; | |
2213 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2214 | struct ofmirror *m = ofproto->mirrors[i]; | |
2215 | if (m) { | |
2216 | if (m->out == bundle) { | |
2217 | mirror_destroy(m); | |
2218 | } else if (hmapx_find_and_delete(&m->srcs, bundle) | |
2219 | || hmapx_find_and_delete(&m->dsts, bundle)) { | |
2cc3c58e | 2220 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2221 | } |
2222 | } | |
2223 | } | |
2224 | ||
2225 | LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) { | |
2226 | bundle_del_port(port); | |
2227 | } | |
2228 | ||
b44a10b7 | 2229 | bundle_flush_macs(bundle, true); |
abe529af BP |
2230 | hmap_remove(&ofproto->bundles, &bundle->hmap_node); |
2231 | free(bundle->name); | |
2232 | free(bundle->trunks); | |
2233 | lacp_destroy(bundle->lacp); | |
2234 | bond_destroy(bundle->bond); | |
2235 | free(bundle); | |
2236 | } | |
2237 | ||
2238 | static int | |
2239 | bundle_set(struct ofproto *ofproto_, void *aux, | |
2240 | const struct ofproto_bundle_settings *s) | |
2241 | { | |
2242 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2243 | bool need_flush = false; | |
abe529af BP |
2244 | struct ofport_dpif *port; |
2245 | struct ofbundle *bundle; | |
ecac4ebf BP |
2246 | unsigned long *trunks; |
2247 | int vlan; | |
abe529af BP |
2248 | size_t i; |
2249 | bool ok; | |
2250 | ||
2251 | if (!s) { | |
2252 | bundle_destroy(bundle_lookup(ofproto, aux)); | |
2253 | return 0; | |
2254 | } | |
2255 | ||
cb22974d BP |
2256 | ovs_assert(s->n_slaves == 1 || s->bond != NULL); |
2257 | ovs_assert((s->lacp != NULL) == (s->lacp_slaves != NULL)); | |
abe529af BP |
2258 | |
2259 | bundle = bundle_lookup(ofproto, aux); | |
2260 | if (!bundle) { | |
2261 | bundle = xmalloc(sizeof *bundle); | |
2262 | ||
2263 | bundle->ofproto = ofproto; | |
2264 | hmap_insert(&ofproto->bundles, &bundle->hmap_node, | |
2265 | hash_pointer(aux, 0)); | |
2266 | bundle->aux = aux; | |
2267 | bundle->name = NULL; | |
2268 | ||
2269 | list_init(&bundle->ports); | |
ecac4ebf | 2270 | bundle->vlan_mode = PORT_VLAN_TRUNK; |
abe529af BP |
2271 | bundle->vlan = -1; |
2272 | bundle->trunks = NULL; | |
5e9ceccd | 2273 | bundle->use_priority_tags = s->use_priority_tags; |
abe529af BP |
2274 | bundle->lacp = NULL; |
2275 | bundle->bond = NULL; | |
2276 | ||
2277 | bundle->floodable = true; | |
2278 | ||
2279 | bundle->src_mirrors = 0; | |
2280 | bundle->dst_mirrors = 0; | |
2281 | bundle->mirror_out = 0; | |
2282 | } | |
2283 | ||
2284 | if (!bundle->name || strcmp(s->name, bundle->name)) { | |
2285 | free(bundle->name); | |
2286 | bundle->name = xstrdup(s->name); | |
2287 | } | |
2288 | ||
2289 | /* LACP. */ | |
2290 | if (s->lacp) { | |
2291 | if (!bundle->lacp) { | |
2cc3c58e | 2292 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2293 | bundle->lacp = lacp_create(); |
2294 | } | |
2295 | lacp_configure(bundle->lacp, s->lacp); | |
2296 | } else { | |
2297 | lacp_destroy(bundle->lacp); | |
2298 | bundle->lacp = NULL; | |
2299 | } | |
2300 | ||
2301 | /* Update set of ports. */ | |
2302 | ok = true; | |
2303 | for (i = 0; i < s->n_slaves; i++) { | |
2304 | if (!bundle_add_port(bundle, s->slaves[i], | |
df53d41c | 2305 | s->lacp ? &s->lacp_slaves[i] : NULL)) { |
abe529af BP |
2306 | ok = false; |
2307 | } | |
2308 | } | |
2309 | if (!ok || list_size(&bundle->ports) != s->n_slaves) { | |
2310 | struct ofport_dpif *next_port; | |
2311 | ||
2312 | LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) { | |
2313 | for (i = 0; i < s->n_slaves; i++) { | |
56c769ab | 2314 | if (s->slaves[i] == port->up.ofp_port) { |
abe529af BP |
2315 | goto found; |
2316 | } | |
2317 | } | |
2318 | ||
2319 | bundle_del_port(port); | |
2320 | found: ; | |
2321 | } | |
2322 | } | |
cb22974d | 2323 | ovs_assert(list_size(&bundle->ports) <= s->n_slaves); |
abe529af BP |
2324 | |
2325 | if (list_is_empty(&bundle->ports)) { | |
2326 | bundle_destroy(bundle); | |
2327 | return EINVAL; | |
2328 | } | |
2329 | ||
ecac4ebf | 2330 | /* Set VLAN tagging mode */ |
5e9ceccd BP |
2331 | if (s->vlan_mode != bundle->vlan_mode |
2332 | || s->use_priority_tags != bundle->use_priority_tags) { | |
ecac4ebf | 2333 | bundle->vlan_mode = s->vlan_mode; |
5e9ceccd | 2334 | bundle->use_priority_tags = s->use_priority_tags; |
ecac4ebf BP |
2335 | need_flush = true; |
2336 | } | |
2337 | ||
abe529af | 2338 | /* Set VLAN tag. */ |
ecac4ebf BP |
2339 | vlan = (s->vlan_mode == PORT_VLAN_TRUNK ? -1 |
2340 | : s->vlan >= 0 && s->vlan <= 4095 ? s->vlan | |
2341 | : 0); | |
2342 | if (vlan != bundle->vlan) { | |
2343 | bundle->vlan = vlan; | |
abe529af BP |
2344 | need_flush = true; |
2345 | } | |
2346 | ||
2347 | /* Get trunked VLANs. */ | |
ecac4ebf BP |
2348 | switch (s->vlan_mode) { |
2349 | case PORT_VLAN_ACCESS: | |
2350 | trunks = NULL; | |
2351 | break; | |
2352 | ||
2353 | case PORT_VLAN_TRUNK: | |
ebc56baa | 2354 | trunks = CONST_CAST(unsigned long *, s->trunks); |
ecac4ebf BP |
2355 | break; |
2356 | ||
2357 | case PORT_VLAN_NATIVE_UNTAGGED: | |
2358 | case PORT_VLAN_NATIVE_TAGGED: | |
2359 | if (vlan != 0 && (!s->trunks | |
2360 | || !bitmap_is_set(s->trunks, vlan) | |
2361 | || bitmap_is_set(s->trunks, 0))) { | |
2362 | /* Force trunking the native VLAN and prohibit trunking VLAN 0. */ | |
2363 | if (s->trunks) { | |
2364 | trunks = bitmap_clone(s->trunks, 4096); | |
2365 | } else { | |
2366 | trunks = bitmap_allocate1(4096); | |
2367 | } | |
2368 | bitmap_set1(trunks, vlan); | |
2369 | bitmap_set0(trunks, 0); | |
2370 | } else { | |
ebc56baa | 2371 | trunks = CONST_CAST(unsigned long *, s->trunks); |
ecac4ebf BP |
2372 | } |
2373 | break; | |
2374 | ||
2375 | default: | |
2376 | NOT_REACHED(); | |
2377 | } | |
abe529af BP |
2378 | if (!vlan_bitmap_equal(trunks, bundle->trunks)) { |
2379 | free(bundle->trunks); | |
ecac4ebf BP |
2380 | if (trunks == s->trunks) { |
2381 | bundle->trunks = vlan_bitmap_clone(trunks); | |
2382 | } else { | |
2383 | bundle->trunks = trunks; | |
2384 | trunks = NULL; | |
2385 | } | |
abe529af BP |
2386 | need_flush = true; |
2387 | } | |
ecac4ebf BP |
2388 | if (trunks != s->trunks) { |
2389 | free(trunks); | |
2390 | } | |
abe529af BP |
2391 | |
2392 | /* Bonding. */ | |
2393 | if (!list_is_short(&bundle->ports)) { | |
2394 | bundle->ofproto->has_bonded_bundles = true; | |
2395 | if (bundle->bond) { | |
2396 | if (bond_reconfigure(bundle->bond, s->bond)) { | |
2cc3c58e | 2397 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2398 | } |
2399 | } else { | |
2400 | bundle->bond = bond_create(s->bond); | |
2cc3c58e | 2401 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2402 | } |
2403 | ||
2404 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
df53d41c | 2405 | bond_slave_register(bundle->bond, port, port->up.netdev); |
abe529af BP |
2406 | } |
2407 | } else { | |
2408 | bond_destroy(bundle->bond); | |
2409 | bundle->bond = NULL; | |
2410 | } | |
2411 | ||
2412 | /* If we changed something that would affect MAC learning, un-learn | |
2413 | * everything on this port and force flow revalidation. */ | |
2414 | if (need_flush) { | |
b44a10b7 | 2415 | bundle_flush_macs(bundle, false); |
abe529af BP |
2416 | } |
2417 | ||
2418 | return 0; | |
2419 | } | |
2420 | ||
2421 | static void | |
2422 | bundle_remove(struct ofport *port_) | |
2423 | { | |
2424 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
2425 | struct ofbundle *bundle = port->bundle; | |
2426 | ||
2427 | if (bundle) { | |
2428 | bundle_del_port(port); | |
2429 | if (list_is_empty(&bundle->ports)) { | |
2430 | bundle_destroy(bundle); | |
2431 | } else if (list_is_short(&bundle->ports)) { | |
2432 | bond_destroy(bundle->bond); | |
2433 | bundle->bond = NULL; | |
2434 | } | |
2435 | } | |
2436 | } | |
2437 | ||
2438 | static void | |
5f877369 | 2439 | send_pdu_cb(void *port_, const void *pdu, size_t pdu_size) |
abe529af BP |
2440 | { |
2441 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10); | |
2442 | struct ofport_dpif *port = port_; | |
2443 | uint8_t ea[ETH_ADDR_LEN]; | |
2444 | int error; | |
2445 | ||
2446 | error = netdev_get_etheraddr(port->up.netdev, ea); | |
2447 | if (!error) { | |
abe529af | 2448 | struct ofpbuf packet; |
5f877369 | 2449 | void *packet_pdu; |
abe529af BP |
2450 | |
2451 | ofpbuf_init(&packet, 0); | |
2452 | packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP, | |
5f877369 EJ |
2453 | pdu_size); |
2454 | memcpy(packet_pdu, pdu, pdu_size); | |
2455 | ||
97d6520b | 2456 | send_packet(port, &packet); |
abe529af BP |
2457 | ofpbuf_uninit(&packet); |
2458 | } else { | |
2459 | VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface " | |
2460 | "%s (%s)", port->bundle->name, | |
2461 | netdev_get_name(port->up.netdev), strerror(error)); | |
2462 | } | |
2463 | } | |
2464 | ||
2465 | static void | |
2466 | bundle_send_learning_packets(struct ofbundle *bundle) | |
2467 | { | |
2468 | struct ofproto_dpif *ofproto = bundle->ofproto; | |
2469 | int error, n_packets, n_errors; | |
2470 | struct mac_entry *e; | |
2471 | ||
2472 | error = n_packets = n_errors = 0; | |
2473 | LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) { | |
2474 | if (e->port.p != bundle) { | |
ea131871 JG |
2475 | struct ofpbuf *learning_packet; |
2476 | struct ofport_dpif *port; | |
4dd1e3ca | 2477 | void *port_void; |
ea131871 JG |
2478 | int ret; |
2479 | ||
4dd1e3ca BP |
2480 | /* The assignment to "port" is unnecessary but makes "grep"ing for |
2481 | * struct ofport_dpif more effective. */ | |
2482 | learning_packet = bond_compose_learning_packet(bundle->bond, | |
2483 | e->mac, e->vlan, | |
2484 | &port_void); | |
2485 | port = port_void; | |
97d6520b | 2486 | ret = send_packet(port, learning_packet); |
ea131871 | 2487 | ofpbuf_delete(learning_packet); |
abe529af BP |
2488 | if (ret) { |
2489 | error = ret; | |
2490 | n_errors++; | |
2491 | } | |
2492 | n_packets++; | |
2493 | } | |
2494 | } | |
2495 | ||
2496 | if (n_errors) { | |
2497 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
2498 | VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning " | |
2499 | "packets, last error was: %s", | |
2500 | bundle->name, n_errors, n_packets, strerror(error)); | |
2501 | } else { | |
2502 | VLOG_DBG("bond %s: sent %d gratuitous learning packets", | |
2503 | bundle->name, n_packets); | |
2504 | } | |
2505 | } | |
2506 | ||
2507 | static void | |
2508 | bundle_run(struct ofbundle *bundle) | |
2509 | { | |
2510 | if (bundle->lacp) { | |
2511 | lacp_run(bundle->lacp, send_pdu_cb); | |
2512 | } | |
2513 | if (bundle->bond) { | |
2514 | struct ofport_dpif *port; | |
2515 | ||
2516 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
015e08bc | 2517 | bond_slave_set_may_enable(bundle->bond, port, port->may_enable); |
abe529af BP |
2518 | } |
2519 | ||
2cc3c58e | 2520 | bond_run(bundle->bond, &bundle->ofproto->backer->revalidate_set, |
bdebeece | 2521 | lacp_status(bundle->lacp)); |
abe529af BP |
2522 | if (bond_should_send_learning_packets(bundle->bond)) { |
2523 | bundle_send_learning_packets(bundle); | |
2524 | } | |
2525 | } | |
2526 | } | |
2527 | ||
2528 | static void | |
2529 | bundle_wait(struct ofbundle *bundle) | |
2530 | { | |
2531 | if (bundle->lacp) { | |
2532 | lacp_wait(bundle->lacp); | |
2533 | } | |
2534 | if (bundle->bond) { | |
2535 | bond_wait(bundle->bond); | |
2536 | } | |
2537 | } | |
2538 | \f | |
2539 | /* Mirrors. */ | |
2540 | ||
2541 | static int | |
2542 | mirror_scan(struct ofproto_dpif *ofproto) | |
2543 | { | |
2544 | int idx; | |
2545 | ||
2546 | for (idx = 0; idx < MAX_MIRRORS; idx++) { | |
2547 | if (!ofproto->mirrors[idx]) { | |
2548 | return idx; | |
2549 | } | |
2550 | } | |
2551 | return -1; | |
2552 | } | |
2553 | ||
2554 | static struct ofmirror * | |
2555 | mirror_lookup(struct ofproto_dpif *ofproto, void *aux) | |
2556 | { | |
2557 | int i; | |
2558 | ||
2559 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2560 | struct ofmirror *mirror = ofproto->mirrors[i]; | |
2561 | if (mirror && mirror->aux == aux) { | |
2562 | return mirror; | |
2563 | } | |
2564 | } | |
2565 | ||
2566 | return NULL; | |
2567 | } | |
2568 | ||
9ba15e2a BP |
2569 | /* Update the 'dup_mirrors' member of each of the ofmirrors in 'ofproto'. */ |
2570 | static void | |
2571 | mirror_update_dups(struct ofproto_dpif *ofproto) | |
2572 | { | |
2573 | int i; | |
2574 | ||
2575 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2576 | struct ofmirror *m = ofproto->mirrors[i]; | |
2577 | ||
2578 | if (m) { | |
2579 | m->dup_mirrors = MIRROR_MASK_C(1) << i; | |
2580 | } | |
2581 | } | |
2582 | ||
2583 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2584 | struct ofmirror *m1 = ofproto->mirrors[i]; | |
2585 | int j; | |
2586 | ||
2587 | if (!m1) { | |
2588 | continue; | |
2589 | } | |
2590 | ||
2591 | for (j = i + 1; j < MAX_MIRRORS; j++) { | |
2592 | struct ofmirror *m2 = ofproto->mirrors[j]; | |
2593 | ||
edb0540b | 2594 | if (m2 && m1->out == m2->out && m1->out_vlan == m2->out_vlan) { |
9ba15e2a BP |
2595 | m1->dup_mirrors |= MIRROR_MASK_C(1) << j; |
2596 | m2->dup_mirrors |= m1->dup_mirrors; | |
2597 | } | |
2598 | } | |
2599 | } | |
2600 | } | |
2601 | ||
abe529af BP |
2602 | static int |
2603 | mirror_set(struct ofproto *ofproto_, void *aux, | |
2604 | const struct ofproto_mirror_settings *s) | |
2605 | { | |
2606 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2607 | mirror_mask_t mirror_bit; | |
2608 | struct ofbundle *bundle; | |
2609 | struct ofmirror *mirror; | |
2610 | struct ofbundle *out; | |
2611 | struct hmapx srcs; /* Contains "struct ofbundle *"s. */ | |
2612 | struct hmapx dsts; /* Contains "struct ofbundle *"s. */ | |
2613 | int out_vlan; | |
2614 | ||
2615 | mirror = mirror_lookup(ofproto, aux); | |
2616 | if (!s) { | |
2617 | mirror_destroy(mirror); | |
2618 | return 0; | |
2619 | } | |
2620 | if (!mirror) { | |
2621 | int idx; | |
2622 | ||
2623 | idx = mirror_scan(ofproto); | |
2624 | if (idx < 0) { | |
2625 | VLOG_WARN("bridge %s: maximum of %d port mirrors reached, " | |
2626 | "cannot create %s", | |
2627 | ofproto->up.name, MAX_MIRRORS, s->name); | |
2628 | return EFBIG; | |
2629 | } | |
2630 | ||
2631 | mirror = ofproto->mirrors[idx] = xzalloc(sizeof *mirror); | |
2632 | mirror->ofproto = ofproto; | |
2633 | mirror->idx = idx; | |
8b28d864 | 2634 | mirror->aux = aux; |
abe529af BP |
2635 | mirror->out_vlan = -1; |
2636 | mirror->name = NULL; | |
2637 | } | |
2638 | ||
2639 | if (!mirror->name || strcmp(s->name, mirror->name)) { | |
2640 | free(mirror->name); | |
2641 | mirror->name = xstrdup(s->name); | |
2642 | } | |
2643 | ||
2644 | /* Get the new configuration. */ | |
2645 | if (s->out_bundle) { | |
2646 | out = bundle_lookup(ofproto, s->out_bundle); | |
2647 | if (!out) { | |
2648 | mirror_destroy(mirror); | |
2649 | return EINVAL; | |
2650 | } | |
2651 | out_vlan = -1; | |
2652 | } else { | |
2653 | out = NULL; | |
2654 | out_vlan = s->out_vlan; | |
2655 | } | |
2656 | bundle_lookup_multiple(ofproto, s->srcs, s->n_srcs, &srcs); | |
2657 | bundle_lookup_multiple(ofproto, s->dsts, s->n_dsts, &dsts); | |
2658 | ||
2659 | /* If the configuration has not changed, do nothing. */ | |
2660 | if (hmapx_equals(&srcs, &mirror->srcs) | |
2661 | && hmapx_equals(&dsts, &mirror->dsts) | |
2662 | && vlan_bitmap_equal(mirror->vlans, s->src_vlans) | |
2663 | && mirror->out == out | |
2664 | && mirror->out_vlan == out_vlan) | |
2665 | { | |
2666 | hmapx_destroy(&srcs); | |
2667 | hmapx_destroy(&dsts); | |
2668 | return 0; | |
2669 | } | |
2670 | ||
2671 | hmapx_swap(&srcs, &mirror->srcs); | |
2672 | hmapx_destroy(&srcs); | |
2673 | ||
2674 | hmapx_swap(&dsts, &mirror->dsts); | |
2675 | hmapx_destroy(&dsts); | |
2676 | ||
2677 | free(mirror->vlans); | |
2678 | mirror->vlans = vlan_bitmap_clone(s->src_vlans); | |
2679 | ||
2680 | mirror->out = out; | |
2681 | mirror->out_vlan = out_vlan; | |
2682 | ||
2683 | /* Update bundles. */ | |
2684 | mirror_bit = MIRROR_MASK_C(1) << mirror->idx; | |
2685 | HMAP_FOR_EACH (bundle, hmap_node, &mirror->ofproto->bundles) { | |
2686 | if (hmapx_contains(&mirror->srcs, bundle)) { | |
2687 | bundle->src_mirrors |= mirror_bit; | |
2688 | } else { | |
2689 | bundle->src_mirrors &= ~mirror_bit; | |
2690 | } | |
2691 | ||
2692 | if (hmapx_contains(&mirror->dsts, bundle)) { | |
2693 | bundle->dst_mirrors |= mirror_bit; | |
2694 | } else { | |
2695 | bundle->dst_mirrors &= ~mirror_bit; | |
2696 | } | |
2697 | ||
2698 | if (mirror->out == bundle) { | |
2699 | bundle->mirror_out |= mirror_bit; | |
2700 | } else { | |
2701 | bundle->mirror_out &= ~mirror_bit; | |
2702 | } | |
2703 | } | |
2704 | ||
2cc3c58e | 2705 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
ccb7c863 | 2706 | ofproto->has_mirrors = true; |
2cc3c58e EJ |
2707 | mac_learning_flush(ofproto->ml, |
2708 | &ofproto->backer->revalidate_set); | |
9ba15e2a | 2709 | mirror_update_dups(ofproto); |
abe529af BP |
2710 | |
2711 | return 0; | |
2712 | } | |
2713 | ||
2714 | static void | |
2715 | mirror_destroy(struct ofmirror *mirror) | |
2716 | { | |
2717 | struct ofproto_dpif *ofproto; | |
2718 | mirror_mask_t mirror_bit; | |
2719 | struct ofbundle *bundle; | |
ccb7c863 | 2720 | int i; |
abe529af BP |
2721 | |
2722 | if (!mirror) { | |
2723 | return; | |
2724 | } | |
2725 | ||
2726 | ofproto = mirror->ofproto; | |
2cc3c58e EJ |
2727 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
2728 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); | |
abe529af BP |
2729 | |
2730 | mirror_bit = MIRROR_MASK_C(1) << mirror->idx; | |
2731 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
2732 | bundle->src_mirrors &= ~mirror_bit; | |
2733 | bundle->dst_mirrors &= ~mirror_bit; | |
2734 | bundle->mirror_out &= ~mirror_bit; | |
2735 | } | |
2736 | ||
2737 | hmapx_destroy(&mirror->srcs); | |
2738 | hmapx_destroy(&mirror->dsts); | |
2739 | free(mirror->vlans); | |
2740 | ||
2741 | ofproto->mirrors[mirror->idx] = NULL; | |
2742 | free(mirror->name); | |
2743 | free(mirror); | |
9ba15e2a BP |
2744 | |
2745 | mirror_update_dups(ofproto); | |
ccb7c863 BP |
2746 | |
2747 | ofproto->has_mirrors = false; | |
2748 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2749 | if (ofproto->mirrors[i]) { | |
2750 | ofproto->has_mirrors = true; | |
2751 | break; | |
2752 | } | |
2753 | } | |
abe529af BP |
2754 | } |
2755 | ||
9d24de3b JP |
2756 | static int |
2757 | mirror_get_stats(struct ofproto *ofproto_, void *aux, | |
2758 | uint64_t *packets, uint64_t *bytes) | |
2759 | { | |
2760 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2761 | struct ofmirror *mirror = mirror_lookup(ofproto, aux); | |
2762 | ||
2763 | if (!mirror) { | |
2764 | *packets = *bytes = UINT64_MAX; | |
2765 | return 0; | |
2766 | } | |
2767 | ||
8844e035 EJ |
2768 | push_all_stats(); |
2769 | ||
9d24de3b JP |
2770 | *packets = mirror->packet_count; |
2771 | *bytes = mirror->byte_count; | |
2772 | ||
2773 | return 0; | |
2774 | } | |
2775 | ||
abe529af BP |
2776 | static int |
2777 | set_flood_vlans(struct ofproto *ofproto_, unsigned long *flood_vlans) | |
2778 | { | |
2779 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2780 | if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) { | |
2cc3c58e | 2781 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); |
abe529af BP |
2782 | } |
2783 | return 0; | |
2784 | } | |
2785 | ||
2786 | static bool | |
b4affc74 | 2787 | is_mirror_output_bundle(const struct ofproto *ofproto_, void *aux) |
abe529af BP |
2788 | { |
2789 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2790 | struct ofbundle *bundle = bundle_lookup(ofproto, aux); | |
2791 | return bundle && bundle->mirror_out != 0; | |
2792 | } | |
8402c74b SS |
2793 | |
2794 | static void | |
b53055f4 | 2795 | forward_bpdu_changed(struct ofproto *ofproto_) |
8402c74b SS |
2796 | { |
2797 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2cc3c58e | 2798 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
8402c74b | 2799 | } |
e764773c BP |
2800 | |
2801 | static void | |
c4069512 BP |
2802 | set_mac_table_config(struct ofproto *ofproto_, unsigned int idle_time, |
2803 | size_t max_entries) | |
e764773c BP |
2804 | { |
2805 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2806 | mac_learning_set_idle_time(ofproto->ml, idle_time); | |
c4069512 | 2807 | mac_learning_set_max_entries(ofproto->ml, max_entries); |
e764773c | 2808 | } |
abe529af BP |
2809 | \f |
2810 | /* Ports. */ | |
2811 | ||
9583bc14 | 2812 | struct ofport_dpif * |
4acbc98d | 2813 | get_ofp_port(const struct ofproto_dpif *ofproto, uint16_t ofp_port) |
abe529af | 2814 | { |
7df6a8bd BP |
2815 | struct ofport *ofport = ofproto_get_port(&ofproto->up, ofp_port); |
2816 | return ofport ? ofport_dpif_cast(ofport) : NULL; | |
abe529af BP |
2817 | } |
2818 | ||
9583bc14 | 2819 | struct ofport_dpif * |
4acbc98d | 2820 | get_odp_port(const struct ofproto_dpif *ofproto, uint32_t odp_port) |
abe529af | 2821 | { |
7c33b188 JR |
2822 | struct ofport_dpif *port = odp_port_to_ofport(ofproto->backer, odp_port); |
2823 | return port && &ofproto->up == port->up.ofproto ? port : NULL; | |
abe529af BP |
2824 | } |
2825 | ||
2826 | static void | |
e1b1d06a JP |
2827 | ofproto_port_from_dpif_port(struct ofproto_dpif *ofproto, |
2828 | struct ofproto_port *ofproto_port, | |
abe529af BP |
2829 | struct dpif_port *dpif_port) |
2830 | { | |
2831 | ofproto_port->name = dpif_port->name; | |
2832 | ofproto_port->type = dpif_port->type; | |
e1b1d06a | 2833 | ofproto_port->ofp_port = odp_port_to_ofp_port(ofproto, dpif_port->port_no); |
abe529af BP |
2834 | } |
2835 | ||
9583bc14 | 2836 | struct ofport_dpif * |
0a740f48 EJ |
2837 | ofport_get_peer(const struct ofport_dpif *ofport_dpif) |
2838 | { | |
2839 | const struct ofproto_dpif *ofproto; | |
462abef2 | 2840 | const struct dpif_backer *backer; |
0a740f48 EJ |
2841 | const char *peer; |
2842 | ||
2843 | peer = netdev_vport_patch_peer(ofport_dpif->up.netdev); | |
2844 | if (!peer) { | |
2845 | return NULL; | |
2846 | } | |
2847 | ||
462abef2 | 2848 | backer = ofproto_dpif_cast(ofport_dpif->up.ofproto)->backer; |
0a740f48 EJ |
2849 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { |
2850 | struct ofport *ofport; | |
2851 | ||
462abef2 EJ |
2852 | if (ofproto->backer != backer) { |
2853 | continue; | |
2854 | } | |
2855 | ||
0a740f48 | 2856 | ofport = shash_find_data(&ofproto->up.port_by_name, peer); |
462abef2 | 2857 | if (ofport) { |
0a740f48 EJ |
2858 | return ofport_dpif_cast(ofport); |
2859 | } | |
2860 | } | |
2861 | return NULL; | |
2862 | } | |
2863 | ||
0aa66d6e EJ |
2864 | static void |
2865 | port_run_fast(struct ofport_dpif *ofport) | |
2866 | { | |
2867 | if (ofport->cfm && cfm_should_send_ccm(ofport->cfm)) { | |
2868 | struct ofpbuf packet; | |
2869 | ||
2870 | ofpbuf_init(&packet, 0); | |
2871 | cfm_compose_ccm(ofport->cfm, &packet, ofport->up.pp.hw_addr); | |
2872 | send_packet(ofport, &packet); | |
2873 | ofpbuf_uninit(&packet); | |
2874 | } | |
ccc09689 EJ |
2875 | |
2876 | if (ofport->bfd && bfd_should_send_packet(ofport->bfd)) { | |
2877 | struct ofpbuf packet; | |
2878 | ||
2879 | ofpbuf_init(&packet, 0); | |
2880 | bfd_put_packet(ofport->bfd, &packet, ofport->up.pp.hw_addr); | |
2881 | send_packet(ofport, &packet); | |
2882 | ofpbuf_uninit(&packet); | |
2883 | } | |
0aa66d6e EJ |
2884 | } |
2885 | ||
abe529af BP |
2886 | static void |
2887 | port_run(struct ofport_dpif *ofport) | |
2888 | { | |
3e5b3fdb EJ |
2889 | long long int carrier_seq = netdev_get_carrier_resets(ofport->up.netdev); |
2890 | bool carrier_changed = carrier_seq != ofport->carrier_seq; | |
015e08bc EJ |
2891 | bool enable = netdev_get_carrier(ofport->up.netdev); |
2892 | ||
3e5b3fdb EJ |
2893 | ofport->carrier_seq = carrier_seq; |
2894 | ||
0aa66d6e | 2895 | port_run_fast(ofport); |
b9ad7294 | 2896 | |
abe529af | 2897 | if (ofport->cfm) { |
4653c558 EJ |
2898 | int cfm_opup = cfm_get_opup(ofport->cfm); |
2899 | ||
abe529af | 2900 | cfm_run(ofport->cfm); |
4653c558 EJ |
2901 | enable = enable && !cfm_get_fault(ofport->cfm); |
2902 | ||
2903 | if (cfm_opup >= 0) { | |
2904 | enable = enable && cfm_opup; | |
2905 | } | |
abe529af | 2906 | } |
015e08bc | 2907 | |
ccc09689 EJ |
2908 | if (ofport->bfd) { |
2909 | bfd_run(ofport->bfd); | |
2910 | enable = enable && bfd_forwarding(ofport->bfd); | |
2911 | } | |
2912 | ||
015e08bc EJ |
2913 | if (ofport->bundle) { |
2914 | enable = enable && lacp_slave_may_enable(ofport->bundle->lacp, ofport); | |
3e5b3fdb EJ |
2915 | if (carrier_changed) { |
2916 | lacp_slave_carrier_changed(ofport->bundle->lacp, ofport); | |
2917 | } | |
015e08bc EJ |
2918 | } |
2919 | ||
daff3353 EJ |
2920 | if (ofport->may_enable != enable) { |
2921 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2922 | ||
2923 | if (ofproto->has_bundle_action) { | |
2cc3c58e | 2924 | ofproto->backer->need_revalidate = REV_PORT_TOGGLED; |
daff3353 EJ |
2925 | } |
2926 | } | |
2927 | ||
015e08bc | 2928 | ofport->may_enable = enable; |
abe529af BP |
2929 | } |
2930 | ||
2931 | static void | |
2932 | port_wait(struct ofport_dpif *ofport) | |
2933 | { | |
2934 | if (ofport->cfm) { | |
2935 | cfm_wait(ofport->cfm); | |
2936 | } | |
ccc09689 EJ |
2937 | |
2938 | if (ofport->bfd) { | |
2939 | bfd_wait(ofport->bfd); | |
2940 | } | |
abe529af BP |
2941 | } |
2942 | ||
2943 | static int | |
2944 | port_query_by_name(const struct ofproto *ofproto_, const char *devname, | |
2945 | struct ofproto_port *ofproto_port) | |
2946 | { | |
2947 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2948 | struct dpif_port dpif_port; | |
2949 | int error; | |
2950 | ||
0a740f48 EJ |
2951 | if (sset_contains(&ofproto->ghost_ports, devname)) { |
2952 | const char *type = netdev_get_type_from_name(devname); | |
2953 | ||
2954 | /* We may be called before ofproto->up.port_by_name is populated with | |
2955 | * the appropriate ofport. For this reason, we must get the name and | |
2956 | * type from the netdev layer directly. */ | |
2957 | if (type) { | |
2958 | const struct ofport *ofport; | |
2959 | ||
2960 | ofport = shash_find_data(&ofproto->up.port_by_name, devname); | |
2961 | ofproto_port->ofp_port = ofport ? ofport->ofp_port : OFPP_NONE; | |
2962 | ofproto_port->name = xstrdup(devname); | |
2963 | ofproto_port->type = xstrdup(type); | |
2964 | return 0; | |
2965 | } | |
2966 | return ENODEV; | |
2967 | } | |
2968 | ||
acf60855 JP |
2969 | if (!sset_contains(&ofproto->ports, devname)) { |
2970 | return ENODEV; | |
2971 | } | |
2972 | error = dpif_port_query_by_name(ofproto->backer->dpif, | |
2973 | devname, &dpif_port); | |
abe529af | 2974 | if (!error) { |
e1b1d06a | 2975 | ofproto_port_from_dpif_port(ofproto, ofproto_port, &dpif_port); |
abe529af BP |
2976 | } |
2977 | return error; | |
2978 | } | |
2979 | ||
2980 | static int | |
e1b1d06a | 2981 | port_add(struct ofproto *ofproto_, struct netdev *netdev) |
abe529af BP |
2982 | { |
2983 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
b9ad7294 | 2984 | const char *devname = netdev_get_name(netdev); |
3aa30359 BP |
2985 | char namebuf[NETDEV_VPORT_NAME_BUFSIZE]; |
2986 | const char *dp_port_name; | |
abe529af | 2987 | |
0a740f48 EJ |
2988 | if (netdev_vport_is_patch(netdev)) { |
2989 | sset_add(&ofproto->ghost_ports, netdev_get_name(netdev)); | |
2990 | return 0; | |
2991 | } | |
2992 | ||
3aa30359 | 2993 | dp_port_name = netdev_vport_get_dpif_port(netdev, namebuf, sizeof namebuf); |
b9ad7294 | 2994 | if (!dpif_port_exists(ofproto->backer->dpif, dp_port_name)) { |
7d82ab2e KM |
2995 | uint32_t port_no = UINT32_MAX; |
2996 | int error; | |
2997 | ||
2998 | error = dpif_port_add(ofproto->backer->dpif, netdev, &port_no); | |
b9ad7294 EJ |
2999 | if (error) { |
3000 | return error; | |
3001 | } | |
7d82ab2e KM |
3002 | if (netdev_get_tunnel_config(netdev)) { |
3003 | simap_put(&ofproto->backer->tnl_backers, dp_port_name, port_no); | |
3004 | } | |
acf60855 | 3005 | } |
b9ad7294 EJ |
3006 | |
3007 | if (netdev_get_tunnel_config(netdev)) { | |
3008 | sset_add(&ofproto->ghost_ports, devname); | |
b9ad7294 EJ |
3009 | } else { |
3010 | sset_add(&ofproto->ports, devname); | |
3011 | } | |
3012 | return 0; | |
3013 | } | |
3014 | ||
abe529af BP |
3015 | static int |
3016 | port_del(struct ofproto *ofproto_, uint16_t ofp_port) | |
3017 | { | |
3018 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
b9ad7294 | 3019 | struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port); |
e1b1d06a | 3020 | int error = 0; |
abe529af | 3021 | |
b9ad7294 EJ |
3022 | if (!ofport) { |
3023 | return 0; | |
e1b1d06a | 3024 | } |
b9ad7294 EJ |
3025 | |
3026 | sset_find_and_delete(&ofproto->ghost_ports, | |
3027 | netdev_get_name(ofport->up.netdev)); | |
a614d823 KM |
3028 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
3029 | if (!ofport->tnl_port) { | |
b9ad7294 EJ |
3030 | error = dpif_port_del(ofproto->backer->dpif, ofport->odp_port); |
3031 | if (!error) { | |
abe529af BP |
3032 | /* The caller is going to close ofport->up.netdev. If this is a |
3033 | * bonded port, then the bond is using that netdev, so remove it | |
3034 | * from the bond. The client will need to reconfigure everything | |
3035 | * after deleting ports, so then the slave will get re-added. */ | |
3036 | bundle_remove(&ofport->up); | |
3037 | } | |
3038 | } | |
3039 | return error; | |
3040 | } | |
3041 | ||
6527c598 PS |
3042 | static int |
3043 | port_get_stats(const struct ofport *ofport_, struct netdev_stats *stats) | |
3044 | { | |
3045 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
3046 | int error; | |
3047 | ||
8844e035 EJ |
3048 | push_all_stats(); |
3049 | ||
6527c598 PS |
3050 | error = netdev_get_stats(ofport->up.netdev, stats); |
3051 | ||
ee382d89 | 3052 | if (!error && ofport_->ofp_port == OFPP_LOCAL) { |
6527c598 PS |
3053 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); |
3054 | ||
3055 | /* ofproto->stats.tx_packets represents packets that we created | |
3056 | * internally and sent to some port (e.g. packets sent with | |
3057 | * send_packet()). Account for them as if they had come from | |
3058 | * OFPP_LOCAL and got forwarded. */ | |
3059 | ||
3060 | if (stats->rx_packets != UINT64_MAX) { | |
3061 | stats->rx_packets += ofproto->stats.tx_packets; | |
3062 | } | |
3063 | ||
3064 | if (stats->rx_bytes != UINT64_MAX) { | |
3065 | stats->rx_bytes += ofproto->stats.tx_bytes; | |
3066 | } | |
3067 | ||
3068 | /* ofproto->stats.rx_packets represents packets that were received on | |
3069 | * some port and we processed internally and dropped (e.g. STP). | |
4e090bc7 | 3070 | * Account for them as if they had been forwarded to OFPP_LOCAL. */ |
6527c598 PS |
3071 | |
3072 | if (stats->tx_packets != UINT64_MAX) { | |
3073 | stats->tx_packets += ofproto->stats.rx_packets; | |
3074 | } | |
3075 | ||
3076 | if (stats->tx_bytes != UINT64_MAX) { | |
3077 | stats->tx_bytes += ofproto->stats.rx_bytes; | |
3078 | } | |
3079 | } | |
3080 | ||
3081 | return error; | |
3082 | } | |
3083 | ||
abe529af | 3084 | struct port_dump_state { |
acf60855 JP |
3085 | uint32_t bucket; |
3086 | uint32_t offset; | |
0a740f48 | 3087 | bool ghost; |
da78d43d BP |
3088 | |
3089 | struct ofproto_port port; | |
3090 | bool has_port; | |
abe529af BP |
3091 | }; |
3092 | ||
3093 | static int | |
acf60855 | 3094 | port_dump_start(const struct ofproto *ofproto_ OVS_UNUSED, void **statep) |
abe529af | 3095 | { |
0a740f48 | 3096 | *statep = xzalloc(sizeof(struct port_dump_state)); |
abe529af BP |
3097 | return 0; |
3098 | } | |
3099 | ||
3100 | static int | |
b9ad7294 | 3101 | port_dump_next(const struct ofproto *ofproto_, void *state_, |
abe529af BP |
3102 | struct ofproto_port *port) |
3103 | { | |
e1b1d06a | 3104 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); |
abe529af | 3105 | struct port_dump_state *state = state_; |
0a740f48 | 3106 | const struct sset *sset; |
acf60855 | 3107 | struct sset_node *node; |
abe529af | 3108 | |
da78d43d BP |
3109 | if (state->has_port) { |
3110 | ofproto_port_destroy(&state->port); | |
3111 | state->has_port = false; | |
3112 | } | |
0a740f48 EJ |
3113 | sset = state->ghost ? &ofproto->ghost_ports : &ofproto->ports; |
3114 | while ((node = sset_at_position(sset, &state->bucket, &state->offset))) { | |
acf60855 JP |
3115 | int error; |
3116 | ||
da78d43d BP |
3117 | error = port_query_by_name(ofproto_, node->name, &state->port); |
3118 | if (!error) { | |
3119 | *port = state->port; | |
3120 | state->has_port = true; | |
3121 | return 0; | |
3122 | } else if (error != ENODEV) { | |
acf60855 JP |
3123 | return error; |
3124 | } | |
abe529af | 3125 | } |
acf60855 | 3126 | |
0a740f48 EJ |
3127 | if (!state->ghost) { |
3128 | state->ghost = true; | |
3129 | state->bucket = 0; | |
3130 | state->offset = 0; | |
3131 | return port_dump_next(ofproto_, state_, port); | |
3132 | } | |
3133 | ||
acf60855 | 3134 | return EOF; |
abe529af BP |
3135 | } |
3136 | ||
3137 | static int | |
3138 | port_dump_done(const struct ofproto *ofproto_ OVS_UNUSED, void *state_) | |
3139 | { | |
3140 | struct port_dump_state *state = state_; | |
3141 | ||
da78d43d BP |
3142 | if (state->has_port) { |
3143 | ofproto_port_destroy(&state->port); | |
3144 | } | |
abe529af BP |
3145 | free(state); |
3146 | return 0; | |
3147 | } | |
3148 | ||
3149 | static int | |
3150 | port_poll(const struct ofproto *ofproto_, char **devnamep) | |
3151 | { | |
3152 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
acf60855 JP |
3153 | |
3154 | if (ofproto->port_poll_errno) { | |
3155 | int error = ofproto->port_poll_errno; | |
3156 | ofproto->port_poll_errno = 0; | |
3157 | return error; | |
3158 | } | |
3159 | ||
3160 | if (sset_is_empty(&ofproto->port_poll_set)) { | |
3161 | return EAGAIN; | |
3162 | } | |
3163 | ||
3164 | *devnamep = sset_pop(&ofproto->port_poll_set); | |
3165 | return 0; | |
abe529af BP |
3166 | } |
3167 | ||
3168 | static void | |
3169 | port_poll_wait(const struct ofproto *ofproto_) | |
3170 | { | |
3171 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
acf60855 | 3172 | dpif_port_poll_wait(ofproto->backer->dpif); |
abe529af BP |
3173 | } |
3174 | ||
3175 | static int | |
3176 | port_is_lacp_current(const struct ofport *ofport_) | |
3177 | { | |
3178 | const struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
3179 | return (ofport->bundle && ofport->bundle->lacp | |
3180 | ? lacp_slave_is_current(ofport->bundle->lacp, ofport) | |
3181 | : -1); | |
3182 | } | |
3183 | \f | |
3184 | /* Upcall handling. */ | |
3185 | ||
501f8d1f BP |
3186 | /* Flow miss batching. |
3187 | * | |
3188 | * Some dpifs implement operations faster when you hand them off in a batch. | |
3189 | * To allow batching, "struct flow_miss" queues the dpif-related work needed | |
3190 | * for a given flow. Each "struct flow_miss" corresponds to sending one or | |
3191 | * more packets, plus possibly installing the flow in the dpif. | |
3192 | * | |
3193 | * So far we only batch the operations that affect flow setup time the most. | |
3194 | * It's possible to batch more than that, but the benefit might be minimal. */ | |
3195 | struct flow_miss { | |
3196 | struct hmap_node hmap_node; | |
acf60855 | 3197 | struct ofproto_dpif *ofproto; |
501f8d1f | 3198 | struct flow flow; |
b0f7b9b5 | 3199 | enum odp_key_fitness key_fitness; |
501f8d1f BP |
3200 | const struct nlattr *key; |
3201 | size_t key_len; | |
3202 | struct list packets; | |
6a7e895f | 3203 | enum dpif_upcall_type upcall_type; |
501f8d1f BP |
3204 | }; |
3205 | ||
3206 | struct flow_miss_op { | |
c2b565b5 | 3207 | struct dpif_op dpif_op; |
bbafd73b EJ |
3208 | |
3209 | uint64_t slow_stub[128 / 8]; /* Buffer for compose_slow_path() */ | |
3210 | struct xlate_out xout; | |
3211 | bool xout_garbage; /* 'xout' needs to be uninitialized? */ | |
501f8d1f BP |
3212 | }; |
3213 | ||
62cd7072 BP |
3214 | /* Sends an OFPT_PACKET_IN message for 'packet' of type OFPR_NO_MATCH to each |
3215 | * OpenFlow controller as necessary according to their individual | |
29ebe880 | 3216 | * configurations. */ |
62cd7072 | 3217 | static void |
a39edbd4 | 3218 | send_packet_in_miss(struct ofproto_dpif *ofproto, const struct ofpbuf *packet, |
29ebe880 | 3219 | const struct flow *flow) |
62cd7072 BP |
3220 | { |
3221 | struct ofputil_packet_in pin; | |
3222 | ||
3e3252fa EJ |
3223 | pin.packet = packet->data; |
3224 | pin.packet_len = packet->size; | |
62cd7072 | 3225 | pin.reason = OFPR_NO_MATCH; |
a7349929 | 3226 | pin.controller_id = 0; |
54834960 EJ |
3227 | |
3228 | pin.table_id = 0; | |
3229 | pin.cookie = 0; | |
3230 | ||
62cd7072 | 3231 | pin.send_len = 0; /* not used for flow table misses */ |
5d6c3af0 EJ |
3232 | |
3233 | flow_get_metadata(flow, &pin.fmd); | |
3234 | ||
d8653c38 | 3235 | connmgr_send_packet_in(ofproto->up.connmgr, &pin); |
62cd7072 BP |
3236 | } |
3237 | ||
501f8d1f | 3238 | static struct flow_miss * |
ddbc5954 JP |
3239 | flow_miss_find(struct hmap *todo, const struct ofproto_dpif *ofproto, |
3240 | const struct flow *flow, uint32_t hash) | |
abe529af | 3241 | { |
501f8d1f | 3242 | struct flow_miss *miss; |
abe529af | 3243 | |
501f8d1f | 3244 | HMAP_FOR_EACH_WITH_HASH (miss, hmap_node, hash, todo) { |
ddbc5954 | 3245 | if (miss->ofproto == ofproto && flow_equal(&miss->flow, flow)) { |
501f8d1f BP |
3246 | return miss; |
3247 | } | |
3248 | } | |
abe529af | 3249 | |
b23cdad9 | 3250 | return NULL; |
501f8d1f | 3251 | } |
abe529af | 3252 | |
9d6ac44e BP |
3253 | /* Partially Initializes 'op' as an "execute" operation for 'miss' and |
3254 | * 'packet'. The caller must initialize op->actions and op->actions_len. If | |
3255 | * 'miss' is associated with a subfacet the caller must also initialize the | |
3256 | * returned op->subfacet, and if anything needs to be freed after processing | |
3257 | * the op, the caller must initialize op->garbage also. */ | |
501f8d1f | 3258 | static void |
9d6ac44e BP |
3259 | init_flow_miss_execute_op(struct flow_miss *miss, struct ofpbuf *packet, |
3260 | struct flow_miss_op *op) | |
501f8d1f | 3261 | { |
47b0deae EJ |
3262 | if (miss->flow.in_port |
3263 | != vsp_realdev_to_vlandev(miss->ofproto, miss->flow.in_port, | |
3264 | miss->flow.vlan_tci)) { | |
9d6ac44e BP |
3265 | /* This packet was received on a VLAN splinter port. We |
3266 | * added a VLAN to the packet to make the packet resemble | |
3267 | * the flow, but the actions were composed assuming that | |
3268 | * the packet contained no VLAN. So, we must remove the | |
3269 | * VLAN header from the packet before trying to execute the | |
3270 | * actions. */ | |
3271 | eth_pop_vlan(packet); | |
3272 | } | |
3273 | ||
bbafd73b | 3274 | op->xout_garbage = false; |
9d6ac44e BP |
3275 | op->dpif_op.type = DPIF_OP_EXECUTE; |
3276 | op->dpif_op.u.execute.key = miss->key; | |
3277 | op->dpif_op.u.execute.key_len = miss->key_len; | |
3278 | op->dpif_op.u.execute.packet = packet; | |
3279 | } | |
3280 | ||
3281 | /* Helper for handle_flow_miss_without_facet() and | |
3282 | * handle_flow_miss_with_facet(). */ | |
3283 | static void | |
3284 | handle_flow_miss_common(struct rule_dpif *rule, | |
3285 | struct ofpbuf *packet, const struct flow *flow) | |
3286 | { | |
3287 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
3288 | ||
9d6ac44e BP |
3289 | if (rule->up.cr.priority == FAIL_OPEN_PRIORITY) { |
3290 | /* | |
3291 | * Extra-special case for fail-open mode. | |
3292 | * | |
3293 | * We are in fail-open mode and the packet matched the fail-open | |
3294 | * rule, but we are connected to a controller too. We should send | |
3295 | * the packet up to the controller in the hope that it will try to | |
3296 | * set up a flow and thereby allow us to exit fail-open. | |
3297 | * | |
3298 | * See the top-level comment in fail-open.c for more information. | |
3299 | */ | |
3300 | send_packet_in_miss(ofproto, packet, flow); | |
3301 | } | |
3302 | } | |
3303 | ||
3304 | /* Figures out whether a flow that missed in 'ofproto', whose details are in | |
bcd2633a JP |
3305 | * 'miss' masked by 'wc', is likely to be worth tracking in detail in userspace |
3306 | * and (usually) installing a datapath flow. The answer is usually "yes" (a | |
3307 | * return value of true). However, for short flows the cost of bookkeeping is | |
3308 | * much higher than the benefits, so when the datapath holds a large number of | |
3309 | * flows we impose some heuristics to decide which flows are likely to be worth | |
3310 | * tracking. */ | |
9d6ac44e | 3311 | static bool |
bcd2633a | 3312 | flow_miss_should_make_facet(struct flow_miss *miss, struct flow_wildcards *wc) |
9d6ac44e | 3313 | { |
04d08d54 | 3314 | struct dpif_backer *backer = miss->ofproto->backer; |
bcd2633a | 3315 | uint32_t hash; |
04d08d54 EJ |
3316 | |
3317 | if (!backer->governor) { | |
9d6ac44e BP |
3318 | size_t n_subfacets; |
3319 | ||
04d08d54 | 3320 | n_subfacets = hmap_count(&backer->subfacets); |
380f49c4 | 3321 | if (n_subfacets * 2 <= flow_eviction_threshold) { |
9d6ac44e BP |
3322 | return true; |
3323 | } | |
3324 | ||
c985ec94 | 3325 | backer->governor = governor_create(); |
9d6ac44e BP |
3326 | } |
3327 | ||
bcd2633a | 3328 | hash = flow_hash_in_wildcards(&miss->flow, wc, 0); |
04d08d54 | 3329 | return governor_should_install_flow(backer->governor, hash, |
9d6ac44e BP |
3330 | list_size(&miss->packets)); |
3331 | } | |
3332 | ||
bcd2633a JP |
3333 | /* Handles 'miss' without creating a facet or subfacet or creating any datapath |
3334 | * flow. 'miss->flow' must have matched 'rule' and been xlated into 'xout'. | |
3335 | * May add an "execute" operation to 'ops' and increment '*n_ops'. */ | |
9d6ac44e | 3336 | static void |
bcd2633a JP |
3337 | handle_flow_miss_without_facet(struct rule_dpif *rule, struct xlate_out *xout, |
3338 | struct flow_miss *miss, | |
9d6ac44e BP |
3339 | struct flow_miss_op *ops, size_t *n_ops) |
3340 | { | |
530a1d91 | 3341 | struct ofpbuf *packet; |
2b459b83 | 3342 | |
9d6ac44e | 3343 | LIST_FOR_EACH (packet, list_node, &miss->packets) { |
abe529af | 3344 | |
9d6ac44e | 3345 | COVERAGE_INC(facet_suppress); |
501f8d1f | 3346 | |
7820e253 EJ |
3347 | handle_flow_miss_common(rule, packet, &miss->flow); |
3348 | ||
bcd2633a JP |
3349 | if (xout->slow) { |
3350 | struct xlate_in xin; | |
abe529af | 3351 | |
47b0deae | 3352 | xlate_in_init(&xin, miss->ofproto, &miss->flow, rule, 0, packet); |
bcd2633a JP |
3353 | xlate_actions_for_side_effects(&xin); |
3354 | } | |
abe529af | 3355 | |
bcd2633a JP |
3356 | if (xout->odp_actions.size) { |
3357 | struct flow_miss_op *op = &ops[*n_ops]; | |
9d6ac44e BP |
3358 | struct dpif_execute *execute = &op->dpif_op.u.execute; |
3359 | ||
3360 | init_flow_miss_execute_op(miss, packet, op); | |
bcd2633a | 3361 | xlate_out_copy(&op->xout, xout); |
bbafd73b EJ |
3362 | execute->actions = op->xout.odp_actions.data; |
3363 | execute->actions_len = op->xout.odp_actions.size; | |
3364 | op->xout_garbage = true; | |
9d6ac44e BP |
3365 | |
3366 | (*n_ops)++; | |
9d6ac44e | 3367 | } |
abe529af | 3368 | } |
9d6ac44e BP |
3369 | } |
3370 | ||
3371 | /* Handles 'miss', which matches 'facet'. May add any required datapath | |
459b16a1 BP |
3372 | * operations to 'ops', incrementing '*n_ops' for each new op. |
3373 | * | |
3374 | * All of the packets in 'miss' are considered to have arrived at time 'now'. | |
3375 | * This is really important only for new facets: if we just called time_msec() | |
3376 | * here, then the new subfacet or its packets could look (occasionally) as | |
3377 | * though it was used some time after the facet was used. That can make a | |
3378 | * one-packet flow look like it has a nonzero duration, which looks odd in | |
bcd2633a JP |
3379 | * e.g. NetFlow statistics. |
3380 | * | |
3381 | * If non-null, 'stats' will be folded into 'facet'. */ | |
9d6ac44e BP |
3382 | static void |
3383 | handle_flow_miss_with_facet(struct flow_miss *miss, struct facet *facet, | |
bcd2633a | 3384 | long long int now, struct dpif_flow_stats *stats, |
9d6ac44e BP |
3385 | struct flow_miss_op *ops, size_t *n_ops) |
3386 | { | |
6a7e895f BP |
3387 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
3388 | enum subfacet_path want_path; | |
9d6ac44e BP |
3389 | struct subfacet *subfacet; |
3390 | struct ofpbuf *packet; | |
abe529af | 3391 | |
a088a1ff | 3392 | subfacet = subfacet_create(facet, miss, now); |
bcd2633a JP |
3393 | want_path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH; |
3394 | if (stats) { | |
3395 | subfacet_update_stats(subfacet, stats); | |
3396 | } | |
b0f7b9b5 | 3397 | |
530a1d91 | 3398 | LIST_FOR_EACH (packet, list_node, &miss->packets) { |
5fe20d5d | 3399 | struct flow_miss_op *op = &ops[*n_ops]; |
67d91f78 | 3400 | |
9d6ac44e | 3401 | handle_flow_miss_common(facet->rule, packet, &miss->flow); |
501f8d1f | 3402 | |
4dff9097 | 3403 | if (want_path != SF_FAST_PATH) { |
bbafd73b | 3404 | struct xlate_in xin; |
454a77e5 | 3405 | |
67a2a536 | 3406 | xlate_in_init(&xin, ofproto, &miss->flow, facet->rule, 0, packet); |
bbafd73b | 3407 | xlate_actions_for_side_effects(&xin); |
501f8d1f | 3408 | } |
67d91f78 | 3409 | |
bbafd73b | 3410 | if (facet->xout.odp_actions.size) { |
9d6ac44e | 3411 | struct dpif_execute *execute = &op->dpif_op.u.execute; |
8338659a | 3412 | |
9d6ac44e | 3413 | init_flow_miss_execute_op(miss, packet, op); |
bbafd73b EJ |
3414 | execute->actions = facet->xout.odp_actions.data, |
3415 | execute->actions_len = facet->xout.odp_actions.size; | |
9d6ac44e | 3416 | (*n_ops)++; |
5fe20d5d | 3417 | } |
501f8d1f BP |
3418 | } |
3419 | ||
6a7e895f | 3420 | if (miss->upcall_type == DPIF_UC_MISS || subfacet->path != want_path) { |
501f8d1f | 3421 | struct flow_miss_op *op = &ops[(*n_ops)++]; |
c2b565b5 | 3422 | struct dpif_flow_put *put = &op->dpif_op.u.flow_put; |
501f8d1f | 3423 | |
c84451a6 EJ |
3424 | subfacet->path = want_path; |
3425 | ||
bbafd73b | 3426 | op->xout_garbage = false; |
c2b565b5 | 3427 | op->dpif_op.type = DPIF_OP_FLOW_PUT; |
501f8d1f BP |
3428 | put->flags = DPIF_FP_CREATE | DPIF_FP_MODIFY; |
3429 | put->key = miss->key; | |
3430 | put->key_len = miss->key_len; | |
6a7e895f | 3431 | if (want_path == SF_FAST_PATH) { |
bbafd73b EJ |
3432 | put->actions = facet->xout.odp_actions.data; |
3433 | put->actions_len = facet->xout.odp_actions.size; | |
6a7e895f | 3434 | } else { |
67a2a536 | 3435 | compose_slow_path(ofproto, &miss->flow, facet->xout.slow, |
bbafd73b | 3436 | op->slow_stub, sizeof op->slow_stub, |
6a7e895f BP |
3437 | &put->actions, &put->actions_len); |
3438 | } | |
501f8d1f BP |
3439 | put->stats = NULL; |
3440 | } | |
3441 | } | |
3442 | ||
acf60855 JP |
3443 | /* Handles flow miss 'miss'. May add any required datapath operations |
3444 | * to 'ops', incrementing '*n_ops' for each new op. */ | |
9d6ac44e | 3445 | static void |
acf60855 JP |
3446 | handle_flow_miss(struct flow_miss *miss, struct flow_miss_op *ops, |
3447 | size_t *n_ops) | |
9d6ac44e | 3448 | { |
acf60855 | 3449 | struct ofproto_dpif *ofproto = miss->ofproto; |
bcd2633a JP |
3450 | struct dpif_flow_stats stats__; |
3451 | struct dpif_flow_stats *stats = &stats__; | |
3452 | struct ofpbuf *packet; | |
9d6ac44e | 3453 | struct facet *facet; |
459b16a1 | 3454 | long long int now; |
9d6ac44e | 3455 | |
bcd2633a JP |
3456 | now = time_msec(); |
3457 | memset(stats, 0, sizeof *stats); | |
3458 | stats->used = now; | |
3459 | LIST_FOR_EACH (packet, list_node, &miss->packets) { | |
3460 | stats->tcp_flags |= packet_get_tcp_flags(packet, &miss->flow); | |
3461 | stats->n_bytes += packet->size; | |
3462 | stats->n_packets++; | |
3463 | } | |
9d6ac44e | 3464 | |
bcd2633a | 3465 | facet = facet_lookup_valid(ofproto, &miss->flow); |
9d6ac44e | 3466 | if (!facet) { |
bcd2633a JP |
3467 | struct flow_wildcards wc; |
3468 | struct rule_dpif *rule; | |
3469 | struct xlate_out xout; | |
3470 | struct xlate_in xin; | |
3471 | ||
3472 | flow_wildcards_init_catchall(&wc); | |
3473 | rule = rule_dpif_lookup(ofproto, &miss->flow, &wc); | |
3474 | rule_credit_stats(rule, stats); | |
3475 | ||
47b0deae EJ |
3476 | xlate_in_init(&xin, ofproto, &miss->flow, rule, stats->tcp_flags, |
3477 | NULL); | |
bcd2633a JP |
3478 | xin.resubmit_stats = stats; |
3479 | xin.may_learn = true; | |
3480 | xlate_actions(&xin, &xout); | |
3481 | flow_wildcards_or(&xout.wc, &xout.wc, &wc); | |
3482 | ||
ba33dd03 EJ |
3483 | /* There does not exist a bijection between 'struct flow' and datapath |
3484 | * flow keys with fitness ODP_FIT_TO_LITTLE. This breaks a fundamental | |
3485 | * assumption used throughout the facet and subfacet handling code. | |
3486 | * Since we have to handle these misses in userspace anyway, we simply | |
ec9f40dc | 3487 | * skip facet creation, avoiding the problem altogether. */ |
ba33dd03 | 3488 | if (miss->key_fitness == ODP_FIT_TOO_LITTLE |
bcd2633a JP |
3489 | || !flow_miss_should_make_facet(miss, &xout.wc)) { |
3490 | handle_flow_miss_without_facet(rule, &xout, miss, ops, n_ops); | |
9d6ac44e BP |
3491 | return; |
3492 | } | |
3493 | ||
bcd2633a JP |
3494 | facet = facet_create(miss, rule, &xout, stats); |
3495 | stats = NULL; | |
9d6ac44e | 3496 | } |
bcd2633a | 3497 | handle_flow_miss_with_facet(miss, facet, now, stats, ops, n_ops); |
9d6ac44e BP |
3498 | } |
3499 | ||
8f73d537 EJ |
3500 | static struct drop_key * |
3501 | drop_key_lookup(const struct dpif_backer *backer, const struct nlattr *key, | |
3502 | size_t key_len) | |
3503 | { | |
3504 | struct drop_key *drop_key; | |
3505 | ||
3506 | HMAP_FOR_EACH_WITH_HASH (drop_key, hmap_node, hash_bytes(key, key_len, 0), | |
3507 | &backer->drop_keys) { | |
3508 | if (drop_key->key_len == key_len | |
3509 | && !memcmp(drop_key->key, key, key_len)) { | |
3510 | return drop_key; | |
3511 | } | |
3512 | } | |
3513 | return NULL; | |
3514 | } | |
3515 | ||
3516 | static void | |
3517 | drop_key_clear(struct dpif_backer *backer) | |
3518 | { | |
3519 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15); | |
3520 | struct drop_key *drop_key, *next; | |
3521 | ||
3522 | HMAP_FOR_EACH_SAFE (drop_key, next, hmap_node, &backer->drop_keys) { | |
3523 | int error; | |
3524 | ||
3525 | error = dpif_flow_del(backer->dpif, drop_key->key, drop_key->key_len, | |
3526 | NULL); | |
3527 | if (error && !VLOG_DROP_WARN(&rl)) { | |
3528 | struct ds ds = DS_EMPTY_INITIALIZER; | |
3529 | odp_flow_key_format(drop_key->key, drop_key->key_len, &ds); | |
3530 | VLOG_WARN("Failed to delete drop key (%s) (%s)", strerror(error), | |
3531 | ds_cstr(&ds)); | |
3532 | ds_destroy(&ds); | |
3533 | } | |
3534 | ||
3535 | hmap_remove(&backer->drop_keys, &drop_key->hmap_node); | |
3536 | free(drop_key->key); | |
3537 | free(drop_key); | |
3538 | } | |
3539 | } | |
3540 | ||
e09ee259 EJ |
3541 | /* Given a datpath, packet, and flow metadata ('backer', 'packet', and 'key' |
3542 | * respectively), populates 'flow' with the result of odp_flow_key_to_flow(). | |
3543 | * Optionally, if nonnull, populates 'fitnessp' with the fitness of 'flow' as | |
3544 | * returned by odp_flow_key_to_flow(). Also, optionally populates 'ofproto' | |
3545 | * with the ofproto_dpif, and 'odp_in_port' with the datapath in_port, that | |
3546 | * 'packet' ingressed. | |
e2a6ca36 | 3547 | * |
e09ee259 EJ |
3548 | * If 'ofproto' is nonnull, requires 'flow''s in_port to exist. Otherwise sets |
3549 | * 'flow''s in_port to OFPP_NONE. | |
3550 | * | |
3551 | * This function does post-processing on data returned from | |
3552 | * odp_flow_key_to_flow() to help make VLAN splinters transparent to the rest | |
3553 | * of the upcall processing logic. In particular, if the extracted in_port is | |
3554 | * a VLAN splinter port, it replaces flow->in_port by the "real" port, sets | |
3555 | * flow->vlan_tci correctly for the VLAN of the VLAN splinter port, and pushes | |
3556 | * a VLAN header onto 'packet' (if it is nonnull). | |
3557 | * | |
b9ad7294 EJ |
3558 | * Similarly, this function also includes some logic to help with tunnels. It |
3559 | * may modify 'flow' as necessary to make the tunneling implementation | |
3560 | * transparent to the upcall processing logic. | |
3561 | * | |
e09ee259 EJ |
3562 | * Returns 0 if successful, ENODEV if the parsed flow has no associated ofport, |
3563 | * or some other positive errno if there are other problems. */ | |
3564 | static int | |
3565 | ofproto_receive(const struct dpif_backer *backer, struct ofpbuf *packet, | |
3566 | const struct nlattr *key, size_t key_len, | |
3567 | struct flow *flow, enum odp_key_fitness *fitnessp, | |
47b0deae | 3568 | struct ofproto_dpif **ofproto, uint32_t *odp_in_port) |
e84173dc | 3569 | { |
e09ee259 EJ |
3570 | const struct ofport_dpif *port; |
3571 | enum odp_key_fitness fitness; | |
b9ad7294 | 3572 | int error = ENODEV; |
e09ee259 EJ |
3573 | |
3574 | fitness = odp_flow_key_to_flow(key, key_len, flow); | |
e84173dc | 3575 | if (fitness == ODP_FIT_ERROR) { |
e09ee259 EJ |
3576 | error = EINVAL; |
3577 | goto exit; | |
3578 | } | |
3579 | ||
e09ee259 EJ |
3580 | if (odp_in_port) { |
3581 | *odp_in_port = flow->in_port; | |
3582 | } | |
3583 | ||
3abe1835 BP |
3584 | port = (tnl_port_should_receive(flow) |
3585 | ? ofport_dpif_cast(tnl_port_receive(flow)) | |
3586 | : odp_port_to_ofport(backer, flow->in_port)); | |
3587 | flow->in_port = port ? port->up.ofp_port : OFPP_NONE; | |
3588 | if (!port) { | |
3589 | goto exit; | |
3590 | } | |
3591 | ||
3592 | /* XXX: Since the tunnel module is not scoped per backer, for a tunnel port | |
3593 | * it's theoretically possible that we'll receive an ofport belonging to an | |
3594 | * entirely different datapath. In practice, this can't happen because no | |
3595 | * platforms has two separate datapaths which each support tunneling. */ | |
3596 | ovs_assert(ofproto_dpif_cast(port->up.ofproto)->backer == backer); | |
3597 | ||
3598 | if (vsp_adjust_flow(ofproto_dpif_cast(port->up.ofproto), flow)) { | |
3599 | if (packet) { | |
3600 | /* Make the packet resemble the flow, so that it gets sent to | |
3601 | * an OpenFlow controller properly, so that it looks correct | |
3602 | * for sFlow, and so that flow_extract() will get the correct | |
3603 | * vlan_tci if it is called on 'packet'. | |
3604 | * | |
3605 | * The allocated space inside 'packet' probably also contains | |
3606 | * 'key', that is, both 'packet' and 'key' are probably part of | |
3607 | * a struct dpif_upcall (see the large comment on that | |
3608 | * structure definition), so pushing data on 'packet' is in | |
3609 | * general not a good idea since it could overwrite 'key' or | |
3610 | * free it as a side effect. However, it's OK in this special | |
3611 | * case because we know that 'packet' is inside a Netlink | |
3612 | * attribute: pushing 4 bytes will just overwrite the 4-byte | |
3613 | * "struct nlattr", which is fine since we don't need that | |
3614 | * header anymore. */ | |
3615 | eth_push_vlan(packet, flow->vlan_tci); | |
3616 | } | |
3617 | /* We can't reproduce 'key' from 'flow'. */ | |
3618 | fitness = fitness == ODP_FIT_PERFECT ? ODP_FIT_TOO_MUCH : fitness; | |
52a90c29 | 3619 | } |
e09ee259 | 3620 | error = 0; |
52a90c29 | 3621 | |
b9ad7294 EJ |
3622 | if (ofproto) { |
3623 | *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
3624 | } | |
3625 | ||
e09ee259 EJ |
3626 | exit: |
3627 | if (fitnessp) { | |
3628 | *fitnessp = fitness; | |
3629 | } | |
3630 | return error; | |
e84173dc BP |
3631 | } |
3632 | ||
501f8d1f | 3633 | static void |
acf60855 | 3634 | handle_miss_upcalls(struct dpif_backer *backer, struct dpif_upcall *upcalls, |
501f8d1f BP |
3635 | size_t n_upcalls) |
3636 | { | |
3637 | struct dpif_upcall *upcall; | |
b23cdad9 BP |
3638 | struct flow_miss *miss; |
3639 | struct flow_miss misses[FLOW_MISS_MAX_BATCH]; | |
501f8d1f | 3640 | struct flow_miss_op flow_miss_ops[FLOW_MISS_MAX_BATCH * 2]; |
c2b565b5 | 3641 | struct dpif_op *dpif_ops[FLOW_MISS_MAX_BATCH * 2]; |
501f8d1f | 3642 | struct hmap todo; |
b23cdad9 | 3643 | int n_misses; |
501f8d1f BP |
3644 | size_t n_ops; |
3645 | size_t i; | |
3646 | ||
3647 | if (!n_upcalls) { | |
3648 | return; | |
3649 | } | |
3650 | ||
3651 | /* Construct the to-do list. | |
3652 | * | |
3653 | * This just amounts to extracting the flow from each packet and sticking | |
3654 | * the packets that have the same flow in the same "flow_miss" structure so | |
3655 | * that we can process them together. */ | |
3656 | hmap_init(&todo); | |
b23cdad9 | 3657 | n_misses = 0; |
501f8d1f | 3658 | for (upcall = upcalls; upcall < &upcalls[n_upcalls]; upcall++) { |
b23cdad9 BP |
3659 | struct flow_miss *miss = &misses[n_misses]; |
3660 | struct flow_miss *existing_miss; | |
acf60855 | 3661 | struct ofproto_dpif *ofproto; |
a088a1ff | 3662 | uint32_t odp_in_port; |
1d446463 | 3663 | struct flow flow; |
b23cdad9 | 3664 | uint32_t hash; |
e09ee259 | 3665 | int error; |
501f8d1f | 3666 | |
e09ee259 EJ |
3667 | error = ofproto_receive(backer, upcall->packet, upcall->key, |
3668 | upcall->key_len, &flow, &miss->key_fitness, | |
47b0deae | 3669 | &ofproto, &odp_in_port); |
e09ee259 | 3670 | if (error == ENODEV) { |
8f73d537 EJ |
3671 | struct drop_key *drop_key; |
3672 | ||
c3385516 AW |
3673 | /* Received packet on datapath port for which we couldn't |
3674 | * associate an ofproto. This can happen if a port is removed | |
3675 | * while traffic is being received. Print a rate-limited message | |
8f73d537 EJ |
3676 | * in case it happens frequently. Install a drop flow so |
3677 | * that future packets of the flow are inexpensively dropped | |
3678 | * in the kernel. */ | |
c3385516 AW |
3679 | VLOG_INFO_RL(&rl, "received packet on unassociated datapath port " |
3680 | "%"PRIu32, odp_in_port); | |
8f73d537 EJ |
3681 | |
3682 | drop_key = drop_key_lookup(backer, upcall->key, upcall->key_len); | |
3683 | if (!drop_key) { | |
3684 | drop_key = xmalloc(sizeof *drop_key); | |
3685 | drop_key->key = xmemdup(upcall->key, upcall->key_len); | |
3686 | drop_key->key_len = upcall->key_len; | |
3687 | ||
3688 | hmap_insert(&backer->drop_keys, &drop_key->hmap_node, | |
3689 | hash_bytes(drop_key->key, drop_key->key_len, 0)); | |
3690 | dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY, | |
3691 | drop_key->key, drop_key->key_len, NULL, 0, NULL); | |
3692 | } | |
3693 | continue; | |
acf60855 | 3694 | } |
e09ee259 | 3695 | if (error) { |
b0f7b9b5 BP |
3696 | continue; |
3697 | } | |
735d7efb AZ |
3698 | |
3699 | ofproto->n_missed++; | |
72e8bf28 | 3700 | flow_extract(upcall->packet, flow.skb_priority, flow.skb_mark, |
1d446463 | 3701 | &flow.tunnel, flow.in_port, &miss->flow); |
501f8d1f | 3702 | |
501f8d1f | 3703 | /* Add other packets to a to-do list. */ |
b23cdad9 | 3704 | hash = flow_hash(&miss->flow, 0); |
ddbc5954 | 3705 | existing_miss = flow_miss_find(&todo, ofproto, &miss->flow, hash); |
b23cdad9 BP |
3706 | if (!existing_miss) { |
3707 | hmap_insert(&todo, &miss->hmap_node, hash); | |
acf60855 | 3708 | miss->ofproto = ofproto; |
b23cdad9 BP |
3709 | miss->key = upcall->key; |
3710 | miss->key_len = upcall->key_len; | |
6a7e895f | 3711 | miss->upcall_type = upcall->type; |
b23cdad9 BP |
3712 | list_init(&miss->packets); |
3713 | ||
3714 | n_misses++; | |
3715 | } else { | |
3716 | miss = existing_miss; | |
3717 | } | |
501f8d1f BP |
3718 | list_push_back(&miss->packets, &upcall->packet->list_node); |
3719 | } | |
3720 | ||
3721 | /* Process each element in the to-do list, constructing the set of | |
3722 | * operations to batch. */ | |
3723 | n_ops = 0; | |
33bb0caa | 3724 | HMAP_FOR_EACH (miss, hmap_node, &todo) { |
acf60855 | 3725 | handle_flow_miss(miss, flow_miss_ops, &n_ops); |
abe529af | 3726 | } |
cb22974d | 3727 | ovs_assert(n_ops <= ARRAY_SIZE(flow_miss_ops)); |
501f8d1f BP |
3728 | |
3729 | /* Execute batch. */ | |
3730 | for (i = 0; i < n_ops; i++) { | |
3731 | dpif_ops[i] = &flow_miss_ops[i].dpif_op; | |
3732 | } | |
acf60855 | 3733 | dpif_operate(backer->dpif, dpif_ops, n_ops); |
501f8d1f | 3734 | |
c84451a6 | 3735 | /* Free memory. */ |
501f8d1f | 3736 | for (i = 0; i < n_ops; i++) { |
bbafd73b EJ |
3737 | if (flow_miss_ops[i].xout_garbage) { |
3738 | xlate_out_uninit(&flow_miss_ops[i].xout); | |
3739 | } | |
501f8d1f | 3740 | } |
33bb0caa | 3741 | hmap_destroy(&todo); |
abe529af BP |
3742 | } |
3743 | ||
29089a54 RL |
3744 | static enum { SFLOW_UPCALL, MISS_UPCALL, BAD_UPCALL, FLOW_SAMPLE_UPCALL, |
3745 | IPFIX_UPCALL } | |
6a7e895f BP |
3746 | classify_upcall(const struct dpif_upcall *upcall) |
3747 | { | |
29089a54 | 3748 | size_t userdata_len; |
6a7e895f BP |
3749 | union user_action_cookie cookie; |
3750 | ||
3751 | /* First look at the upcall type. */ | |
3752 | switch (upcall->type) { | |
3753 | case DPIF_UC_ACTION: | |
3754 | break; | |
3755 | ||
3756 | case DPIF_UC_MISS: | |
3757 | return MISS_UPCALL; | |
3758 | ||
3759 | case DPIF_N_UC_TYPES: | |
3760 | default: | |
3761 | VLOG_WARN_RL(&rl, "upcall has unexpected type %"PRIu32, upcall->type); | |
3762 | return BAD_UPCALL; | |
3763 | } | |
3764 | ||
3765 | /* "action" upcalls need a closer look. */ | |
e995e3df BP |
3766 | if (!upcall->userdata) { |
3767 | VLOG_WARN_RL(&rl, "action upcall missing cookie"); | |
3768 | return BAD_UPCALL; | |
3769 | } | |
29089a54 RL |
3770 | userdata_len = nl_attr_get_size(upcall->userdata); |
3771 | if (userdata_len < sizeof cookie.type | |
3772 | || userdata_len > sizeof cookie) { | |
e995e3df | 3773 | VLOG_WARN_RL(&rl, "action upcall cookie has unexpected size %zu", |
29089a54 | 3774 | userdata_len); |
e995e3df BP |
3775 | return BAD_UPCALL; |
3776 | } | |
29089a54 RL |
3777 | memset(&cookie, 0, sizeof cookie); |
3778 | memcpy(&cookie, nl_attr_get(upcall->userdata), userdata_len); | |
3779 | if (userdata_len == sizeof cookie.sflow | |
3780 | && cookie.type == USER_ACTION_COOKIE_SFLOW) { | |
6a7e895f | 3781 | return SFLOW_UPCALL; |
29089a54 RL |
3782 | } else if (userdata_len == sizeof cookie.slow_path |
3783 | && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) { | |
6a7e895f | 3784 | return MISS_UPCALL; |
29089a54 RL |
3785 | } else if (userdata_len == sizeof cookie.flow_sample |
3786 | && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) { | |
3787 | return FLOW_SAMPLE_UPCALL; | |
3788 | } else if (userdata_len == sizeof cookie.ipfix | |
3789 | && cookie.type == USER_ACTION_COOKIE_IPFIX) { | |
3790 | return IPFIX_UPCALL; | |
3791 | } else { | |
3792 | VLOG_WARN_RL(&rl, "invalid user cookie of type %"PRIu16 | |
3793 | " and size %zu", cookie.type, userdata_len); | |
6a7e895f BP |
3794 | return BAD_UPCALL; |
3795 | } | |
3796 | } | |
3797 | ||
abe529af | 3798 | static void |
acf60855 | 3799 | handle_sflow_upcall(struct dpif_backer *backer, |
6a7e895f | 3800 | const struct dpif_upcall *upcall) |
abe529af | 3801 | { |
acf60855 | 3802 | struct ofproto_dpif *ofproto; |
1673e0e4 | 3803 | union user_action_cookie cookie; |
e84173dc | 3804 | struct flow flow; |
e1b1d06a | 3805 | uint32_t odp_in_port; |
abe529af | 3806 | |
e09ee259 | 3807 | if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len, |
47b0deae | 3808 | &flow, NULL, &ofproto, &odp_in_port) |
e09ee259 | 3809 | || !ofproto->sflow) { |
e84173dc BP |
3810 | return; |
3811 | } | |
3812 | ||
29089a54 RL |
3813 | memset(&cookie, 0, sizeof cookie); |
3814 | memcpy(&cookie, nl_attr_get(upcall->userdata), sizeof cookie.sflow); | |
e1b1d06a JP |
3815 | dpif_sflow_received(ofproto->sflow, upcall->packet, &flow, |
3816 | odp_in_port, &cookie); | |
6ff686f2 PS |
3817 | } |
3818 | ||
29089a54 RL |
3819 | static void |
3820 | handle_flow_sample_upcall(struct dpif_backer *backer, | |
3821 | const struct dpif_upcall *upcall) | |
3822 | { | |
3823 | struct ofproto_dpif *ofproto; | |
3824 | union user_action_cookie cookie; | |
3825 | struct flow flow; | |
3826 | ||
3827 | if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len, | |
47b0deae | 3828 | &flow, NULL, &ofproto, NULL) |
29089a54 RL |
3829 | || !ofproto->ipfix) { |
3830 | return; | |
3831 | } | |
3832 | ||
3833 | memset(&cookie, 0, sizeof cookie); | |
3834 | memcpy(&cookie, nl_attr_get(upcall->userdata), sizeof cookie.flow_sample); | |
3835 | ||
3836 | /* The flow reflects exactly the contents of the packet. Sample | |
3837 | * the packet using it. */ | |
3838 | dpif_ipfix_flow_sample(ofproto->ipfix, upcall->packet, &flow, | |
3839 | cookie.flow_sample.collector_set_id, | |
3840 | cookie.flow_sample.probability, | |
3841 | cookie.flow_sample.obs_domain_id, | |
3842 | cookie.flow_sample.obs_point_id); | |
3843 | } | |
3844 | ||
3845 | static void | |
3846 | handle_ipfix_upcall(struct dpif_backer *backer, | |
3847 | const struct dpif_upcall *upcall) | |
3848 | { | |
3849 | struct ofproto_dpif *ofproto; | |
3850 | struct flow flow; | |
3851 | ||
3852 | if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len, | |
47b0deae | 3853 | &flow, NULL, &ofproto, NULL) |
29089a54 RL |
3854 | || !ofproto->ipfix) { |
3855 | return; | |
3856 | } | |
3857 | ||
3858 | /* The flow reflects exactly the contents of the packet. Sample | |
3859 | * the packet using it. */ | |
3860 | dpif_ipfix_bridge_sample(ofproto->ipfix, upcall->packet, &flow); | |
3861 | } | |
3862 | ||
9b16c439 | 3863 | static int |
acf60855 | 3864 | handle_upcalls(struct dpif_backer *backer, unsigned int max_batch) |
6ff686f2 | 3865 | { |
9b16c439 | 3866 | struct dpif_upcall misses[FLOW_MISS_MAX_BATCH]; |
90a7c55e BP |
3867 | struct ofpbuf miss_bufs[FLOW_MISS_MAX_BATCH]; |
3868 | uint64_t miss_buf_stubs[FLOW_MISS_MAX_BATCH][4096 / 8]; | |
3869 | int n_processed; | |
9b16c439 BP |
3870 | int n_misses; |
3871 | int i; | |
abe529af | 3872 | |
cb22974d | 3873 | ovs_assert(max_batch <= FLOW_MISS_MAX_BATCH); |
abe529af | 3874 | |
9b16c439 | 3875 | n_misses = 0; |
90a7c55e | 3876 | for (n_processed = 0; n_processed < max_batch; n_processed++) { |
9b16c439 | 3877 | struct dpif_upcall *upcall = &misses[n_misses]; |
90a7c55e | 3878 | struct ofpbuf *buf = &miss_bufs[n_misses]; |
9b16c439 BP |
3879 | int error; |
3880 | ||
90a7c55e BP |
3881 | ofpbuf_use_stub(buf, miss_buf_stubs[n_misses], |
3882 | sizeof miss_buf_stubs[n_misses]); | |
acf60855 | 3883 | error = dpif_recv(backer->dpif, upcall, buf); |
9b16c439 | 3884 | if (error) { |
90a7c55e | 3885 | ofpbuf_uninit(buf); |
9b16c439 BP |
3886 | break; |
3887 | } | |
3888 | ||
6a7e895f BP |
3889 | switch (classify_upcall(upcall)) { |
3890 | case MISS_UPCALL: | |
9b16c439 BP |
3891 | /* Handle it later. */ |
3892 | n_misses++; | |
3893 | break; | |
3894 | ||
6a7e895f | 3895 | case SFLOW_UPCALL: |
acf60855 | 3896 | handle_sflow_upcall(backer, upcall); |
6a7e895f BP |
3897 | ofpbuf_uninit(buf); |
3898 | break; | |
3899 | ||
29089a54 RL |
3900 | case FLOW_SAMPLE_UPCALL: |
3901 | handle_flow_sample_upcall(backer, upcall); | |
3902 | ofpbuf_uninit(buf); | |
3903 | break; | |
3904 | ||
3905 | case IPFIX_UPCALL: | |
3906 | handle_ipfix_upcall(backer, upcall); | |
3907 | ofpbuf_uninit(buf); | |
3908 | break; | |
3909 | ||
6a7e895f BP |
3910 | case BAD_UPCALL: |
3911 | ofpbuf_uninit(buf); | |
9b16c439 BP |
3912 | break; |
3913 | } | |
abe529af | 3914 | } |
9b16c439 | 3915 | |
6a7e895f | 3916 | /* Handle deferred MISS_UPCALL processing. */ |
acf60855 | 3917 | handle_miss_upcalls(backer, misses, n_misses); |
90a7c55e BP |
3918 | for (i = 0; i < n_misses; i++) { |
3919 | ofpbuf_uninit(&miss_bufs[i]); | |
3920 | } | |
9b16c439 | 3921 | |
90a7c55e | 3922 | return n_processed; |
abe529af BP |
3923 | } |
3924 | \f | |
3925 | /* Flow expiration. */ | |
3926 | ||
04d08d54 | 3927 | static int subfacet_max_idle(const struct dpif_backer *); |
acf60855 | 3928 | static void update_stats(struct dpif_backer *); |
abe529af | 3929 | static void rule_expire(struct rule_dpif *); |
04d08d54 | 3930 | static void expire_subfacets(struct dpif_backer *, int dp_max_idle); |
abe529af BP |
3931 | |
3932 | /* This function is called periodically by run(). Its job is to collect | |
3933 | * updates for the flows that have been installed into the datapath, most | |
3934 | * importantly when they last were used, and then use that information to | |
3935 | * expire flows that have not been used recently. | |
3936 | * | |
3937 | * Returns the number of milliseconds after which it should be called again. */ | |
3938 | static int | |
acf60855 | 3939 | expire(struct dpif_backer *backer) |
abe529af | 3940 | { |
acf60855 | 3941 | struct ofproto_dpif *ofproto; |
dc54ef36 | 3942 | size_t n_subfacets; |
04d08d54 | 3943 | int max_idle; |
abe529af | 3944 | |
8f73d537 EJ |
3945 | /* Periodically clear out the drop keys in an effort to keep them |
3946 | * relatively few. */ | |
3947 | drop_key_clear(backer); | |
3948 | ||
acf60855 JP |
3949 | /* Update stats for each flow in the backer. */ |
3950 | update_stats(backer); | |
abe529af | 3951 | |
04d08d54 EJ |
3952 | n_subfacets = hmap_count(&backer->subfacets); |
3953 | if (n_subfacets) { | |
9fc0165a | 3954 | struct subfacet *subfacet; |
04d08d54 | 3955 | long long int total, now; |
abe529af | 3956 | |
04d08d54 EJ |
3957 | total = 0; |
3958 | now = time_msec(); | |
3959 | HMAP_FOR_EACH (subfacet, hmap_node, &backer->subfacets) { | |
3960 | total += now - subfacet->created; | |
acf60855 | 3961 | } |
04d08d54 EJ |
3962 | backer->avg_subfacet_life += total / n_subfacets; |
3963 | } | |
3964 | backer->avg_subfacet_life /= 2; | |
0697b5c3 | 3965 | |
04d08d54 EJ |
3966 | backer->avg_n_subfacet += n_subfacets; |
3967 | backer->avg_n_subfacet /= 2; | |
3968 | ||
3969 | backer->max_n_subfacet = MAX(backer->max_n_subfacet, n_subfacets); | |
655ab909 | 3970 | |
04d08d54 EJ |
3971 | max_idle = subfacet_max_idle(backer); |
3972 | expire_subfacets(backer, max_idle); | |
acf60855 | 3973 | |
04d08d54 EJ |
3974 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { |
3975 | struct rule *rule, *next_rule; | |
3976 | ||
3977 | if (ofproto->backer != backer) { | |
3978 | continue; | |
3979 | } | |
acf60855 JP |
3980 | |
3981 | /* Expire OpenFlow flows whose idle_timeout or hard_timeout | |
3982 | * has passed. */ | |
e503cc19 SH |
3983 | LIST_FOR_EACH_SAFE (rule, next_rule, expirable, |
3984 | &ofproto->up.expirable) { | |
3985 | rule_expire(rule_dpif_cast(rule)); | |
0697b5c3 | 3986 | } |
abe529af | 3987 | |
acf60855 JP |
3988 | /* All outstanding data in existing flows has been accounted, so it's a |
3989 | * good time to do bond rebalancing. */ | |
3990 | if (ofproto->has_bonded_bundles) { | |
3991 | struct ofbundle *bundle; | |
abe529af | 3992 | |
acf60855 JP |
3993 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { |
3994 | if (bundle->bond) { | |
2cc3c58e | 3995 | bond_rebalance(bundle->bond, &backer->revalidate_set); |
acf60855 | 3996 | } |
abe529af BP |
3997 | } |
3998 | } | |
3999 | } | |
4000 | ||
acf60855 | 4001 | return MIN(max_idle, 1000); |
abe529af BP |
4002 | } |
4003 | ||
a218c879 BP |
4004 | /* Updates flow table statistics given that the datapath just reported 'stats' |
4005 | * as 'subfacet''s statistics. */ | |
4006 | static void | |
4007 | update_subfacet_stats(struct subfacet *subfacet, | |
4008 | const struct dpif_flow_stats *stats) | |
4009 | { | |
4010 | struct facet *facet = subfacet->facet; | |
787f3d59 | 4011 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
9dfb1f78 EJ |
4012 | struct dpif_flow_stats diff; |
4013 | ||
4014 | diff.tcp_flags = stats->tcp_flags; | |
4015 | diff.used = stats->used; | |
a218c879 BP |
4016 | |
4017 | if (stats->n_packets >= subfacet->dp_packet_count) { | |
9dfb1f78 | 4018 | diff.n_packets = stats->n_packets - subfacet->dp_packet_count; |
a218c879 BP |
4019 | } else { |
4020 | VLOG_WARN_RL(&rl, "unexpected packet count from the datapath"); | |
9dfb1f78 | 4021 | diff.n_packets = 0; |
a218c879 BP |
4022 | } |
4023 | ||
4024 | if (stats->n_bytes >= subfacet->dp_byte_count) { | |
9dfb1f78 | 4025 | diff.n_bytes = stats->n_bytes - subfacet->dp_byte_count; |
a218c879 BP |
4026 | } else { |
4027 | VLOG_WARN_RL(&rl, "unexpected byte count from datapath"); | |
9dfb1f78 | 4028 | diff.n_bytes = 0; |
a218c879 BP |
4029 | } |
4030 | ||
787f3d59 | 4031 | ofproto->n_hit += diff.n_packets; |
a218c879 BP |
4032 | subfacet->dp_packet_count = stats->n_packets; |
4033 | subfacet->dp_byte_count = stats->n_bytes; | |
9dfb1f78 | 4034 | subfacet_update_stats(subfacet, &diff); |
a218c879 | 4035 | |
a218c879 BP |
4036 | if (facet->accounted_bytes < facet->byte_count) { |
4037 | facet_learn(facet); | |
4038 | facet_account(facet); | |
4039 | facet->accounted_bytes = facet->byte_count; | |
4040 | } | |
a218c879 BP |
4041 | } |
4042 | ||
4043 | /* 'key' with length 'key_len' bytes is a flow in 'dpif' that we know nothing | |
4044 | * about, or a flow that shouldn't be installed but was anyway. Delete it. */ | |
4045 | static void | |
04d08d54 | 4046 | delete_unexpected_flow(struct dpif_backer *backer, |
a218c879 BP |
4047 | const struct nlattr *key, size_t key_len) |
4048 | { | |
4049 | if (!VLOG_DROP_WARN(&rl)) { | |
4050 | struct ds s; | |
4051 | ||
4052 | ds_init(&s); | |
4053 | odp_flow_key_format(key, key_len, &s); | |
04d08d54 | 4054 | VLOG_WARN("unexpected flow: %s", ds_cstr(&s)); |
a218c879 BP |
4055 | ds_destroy(&s); |
4056 | } | |
4057 | ||
4058 | COVERAGE_INC(facet_unexpected); | |
04d08d54 | 4059 | dpif_flow_del(backer->dpif, key, key_len, NULL); |
a218c879 BP |
4060 | } |
4061 | ||
abe529af BP |
4062 | /* Update 'packet_count', 'byte_count', and 'used' members of installed facets. |
4063 | * | |
4064 | * This function also pushes statistics updates to rules which each facet | |
4065 | * resubmits into. Generally these statistics will be accurate. However, if a | |
4066 | * facet changes the rule it resubmits into at some time in between | |
4067 | * update_stats() runs, it is possible that statistics accrued to the | |
4068 | * old rule will be incorrectly attributed to the new rule. This could be | |
4069 | * avoided by calling update_stats() whenever rules are created or | |
4070 | * deleted. However, the performance impact of making so many calls to the | |
4071 | * datapath do not justify the benefit of having perfectly accurate statistics. | |
735d7efb AZ |
4072 | * |
4073 | * In addition, this function maintains per ofproto flow hit counts. The patch | |
4074 | * port is not treated specially. e.g. A packet ingress from br0 patched into | |
4075 | * br1 will increase the hit count of br0 by 1, however, does not affect | |
4076 | * the hit or miss counts of br1. | |
abe529af BP |
4077 | */ |
4078 | static void | |
acf60855 | 4079 | update_stats(struct dpif_backer *backer) |
abe529af BP |
4080 | { |
4081 | const struct dpif_flow_stats *stats; | |
4082 | struct dpif_flow_dump dump; | |
4083 | const struct nlattr *key; | |
4084 | size_t key_len; | |
4085 | ||
acf60855 | 4086 | dpif_flow_dump_start(&dump, backer->dpif); |
abe529af | 4087 | while (dpif_flow_dump_next(&dump, &key, &key_len, NULL, NULL, &stats)) { |
b0f7b9b5 | 4088 | struct subfacet *subfacet; |
acf60855 | 4089 | uint32_t key_hash; |
abe529af | 4090 | |
acf60855 | 4091 | key_hash = odp_flow_key_hash(key, key_len); |
04d08d54 | 4092 | subfacet = subfacet_find(backer, key, key_len, key_hash); |
6a7e895f BP |
4093 | switch (subfacet ? subfacet->path : SF_NOT_INSTALLED) { |
4094 | case SF_FAST_PATH: | |
a218c879 | 4095 | update_subfacet_stats(subfacet, stats); |
6a7e895f BP |
4096 | break; |
4097 | ||
4098 | case SF_SLOW_PATH: | |
4099 | /* Stats are updated per-packet. */ | |
4100 | break; | |
4101 | ||
4102 | case SF_NOT_INSTALLED: | |
4103 | default: | |
04d08d54 | 4104 | delete_unexpected_flow(backer, key, key_len); |
6a7e895f | 4105 | break; |
abe529af | 4106 | } |
8fa4d1d0 | 4107 | run_fast_rl(); |
abe529af BP |
4108 | } |
4109 | dpif_flow_dump_done(&dump); | |
3af56aef | 4110 | |
dc54ef36 | 4111 | update_moving_averages(backer); |
abe529af BP |
4112 | } |
4113 | ||
4114 | /* Calculates and returns the number of milliseconds of idle time after which | |
b0f7b9b5 BP |
4115 | * subfacets should expire from the datapath. When a subfacet expires, we fold |
4116 | * its statistics into its facet, and when a facet's last subfacet expires, we | |
4117 | * fold its statistic into its rule. */ | |
abe529af | 4118 | static int |
04d08d54 | 4119 | subfacet_max_idle(const struct dpif_backer *backer) |
abe529af BP |
4120 | { |
4121 | /* | |
4122 | * Idle time histogram. | |
4123 | * | |
b0f7b9b5 BP |
4124 | * Most of the time a switch has a relatively small number of subfacets. |
4125 | * When this is the case we might as well keep statistics for all of them | |
4126 | * in userspace and to cache them in the kernel datapath for performance as | |
abe529af BP |
4127 | * well. |
4128 | * | |
b0f7b9b5 | 4129 | * As the number of subfacets increases, the memory required to maintain |
abe529af | 4130 | * statistics about them in userspace and in the kernel becomes |
b0f7b9b5 BP |
4131 | * significant. However, with a large number of subfacets it is likely |
4132 | * that only a few of them are "heavy hitters" that consume a large amount | |
4133 | * of bandwidth. At this point, only heavy hitters are worth caching in | |
4134 | * the kernel and maintaining in userspaces; other subfacets we can | |
4135 | * discard. | |
abe529af BP |
4136 | * |
4137 | * The technique used to compute the idle time is to build a histogram with | |
b0f7b9b5 | 4138 | * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each subfacet |
abe529af BP |
4139 | * that is installed in the kernel gets dropped in the appropriate bucket. |
4140 | * After the histogram has been built, we compute the cutoff so that only | |
b0f7b9b5 | 4141 | * the most-recently-used 1% of subfacets (but at least |
380f49c4 | 4142 | * flow_eviction_threshold flows) are kept cached. At least |
b0f7b9b5 BP |
4143 | * the most-recently-used bucket of subfacets is kept, so actually an |
4144 | * arbitrary number of subfacets can be kept in any given expiration run | |
084f5290 SH |
4145 | * (though the next run will delete most of those unless they receive |
4146 | * additional data). | |
abe529af | 4147 | * |
b0f7b9b5 BP |
4148 | * This requires a second pass through the subfacets, in addition to the |
4149 | * pass made by update_stats(), because the former function never looks at | |
4150 | * uninstallable subfacets. | |
abe529af BP |
4151 | */ |
4152 | enum { BUCKET_WIDTH = ROUND_UP(100, TIME_UPDATE_INTERVAL) }; | |
4153 | enum { N_BUCKETS = 5000 / BUCKET_WIDTH }; | |
4154 | int buckets[N_BUCKETS] = { 0 }; | |
f11c1ef4 | 4155 | int total, subtotal, bucket; |
b0f7b9b5 | 4156 | struct subfacet *subfacet; |
abe529af BP |
4157 | long long int now; |
4158 | int i; | |
4159 | ||
04d08d54 | 4160 | total = hmap_count(&backer->subfacets); |
380f49c4 | 4161 | if (total <= flow_eviction_threshold) { |
abe529af BP |
4162 | return N_BUCKETS * BUCKET_WIDTH; |
4163 | } | |
4164 | ||
4165 | /* Build histogram. */ | |
4166 | now = time_msec(); | |
04d08d54 | 4167 | HMAP_FOR_EACH (subfacet, hmap_node, &backer->subfacets) { |
b0f7b9b5 | 4168 | long long int idle = now - subfacet->used; |
abe529af BP |
4169 | int bucket = (idle <= 0 ? 0 |
4170 | : idle >= BUCKET_WIDTH * N_BUCKETS ? N_BUCKETS - 1 | |
4171 | : (unsigned int) idle / BUCKET_WIDTH); | |
4172 | buckets[bucket]++; | |
4173 | } | |
4174 | ||
4175 | /* Find the first bucket whose flows should be expired. */ | |
f11c1ef4 SH |
4176 | subtotal = bucket = 0; |
4177 | do { | |
4178 | subtotal += buckets[bucket++]; | |
084f5290 | 4179 | } while (bucket < N_BUCKETS && |
380f49c4 | 4180 | subtotal < MAX(flow_eviction_threshold, total / 100)); |
abe529af BP |
4181 | |
4182 | if (VLOG_IS_DBG_ENABLED()) { | |
4183 | struct ds s; | |
4184 | ||
4185 | ds_init(&s); | |
4186 | ds_put_cstr(&s, "keep"); | |
4187 | for (i = 0; i < N_BUCKETS; i++) { | |
4188 | if (i == bucket) { | |
4189 | ds_put_cstr(&s, ", drop"); | |
4190 | } | |
4191 | if (buckets[i]) { | |
4192 | ds_put_format(&s, " %d:%d", i * BUCKET_WIDTH, buckets[i]); | |
4193 | } | |
4194 | } | |
04d08d54 | 4195 | VLOG_INFO("%s (msec:count)", ds_cstr(&s)); |
abe529af BP |
4196 | ds_destroy(&s); |
4197 | } | |
4198 | ||
4199 | return bucket * BUCKET_WIDTH; | |
4200 | } | |
4201 | ||
abe529af | 4202 | static void |
04d08d54 | 4203 | expire_subfacets(struct dpif_backer *backer, int dp_max_idle) |
abe529af | 4204 | { |
625b0720 BP |
4205 | /* Cutoff time for most flows. */ |
4206 | long long int normal_cutoff = time_msec() - dp_max_idle; | |
4207 | ||
4208 | /* We really want to keep flows for special protocols around, so use a more | |
4209 | * conservative cutoff. */ | |
4210 | long long int special_cutoff = time_msec() - 10000; | |
b99d3cee | 4211 | |
b0f7b9b5 | 4212 | struct subfacet *subfacet, *next_subfacet; |
1d85f9e5 | 4213 | struct subfacet *batch[SUBFACET_DESTROY_MAX_BATCH]; |
b99d3cee | 4214 | int n_batch; |
abe529af | 4215 | |
b99d3cee | 4216 | n_batch = 0; |
b0f7b9b5 | 4217 | HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node, |
04d08d54 | 4218 | &backer->subfacets) { |
625b0720 BP |
4219 | long long int cutoff; |
4220 | ||
bbafd73b EJ |
4221 | cutoff = (subfacet->facet->xout.slow & (SLOW_CFM | SLOW_BFD | SLOW_LACP |
4222 | | SLOW_STP) | |
625b0720 BP |
4223 | ? special_cutoff |
4224 | : normal_cutoff); | |
b0f7b9b5 | 4225 | if (subfacet->used < cutoff) { |
6a7e895f | 4226 | if (subfacet->path != SF_NOT_INSTALLED) { |
b99d3cee | 4227 | batch[n_batch++] = subfacet; |
1d85f9e5 | 4228 | if (n_batch >= SUBFACET_DESTROY_MAX_BATCH) { |
04d08d54 | 4229 | subfacet_destroy_batch(backer, batch, n_batch); |
b99d3cee BP |
4230 | n_batch = 0; |
4231 | } | |
4232 | } else { | |
4233 | subfacet_destroy(subfacet); | |
4234 | } | |
abe529af BP |
4235 | } |
4236 | } | |
b99d3cee BP |
4237 | |
4238 | if (n_batch > 0) { | |
04d08d54 | 4239 | subfacet_destroy_batch(backer, batch, n_batch); |
b99d3cee | 4240 | } |
abe529af BP |
4241 | } |
4242 | ||
4243 | /* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules, | |
4244 | * then delete it entirely. */ | |
4245 | static void | |
4246 | rule_expire(struct rule_dpif *rule) | |
4247 | { | |
abe529af BP |
4248 | struct facet *facet, *next_facet; |
4249 | long long int now; | |
4250 | uint8_t reason; | |
4251 | ||
e2a3d183 BP |
4252 | if (rule->up.pending) { |
4253 | /* We'll have to expire it later. */ | |
4254 | return; | |
4255 | } | |
4256 | ||
abe529af BP |
4257 | /* Has 'rule' expired? */ |
4258 | now = time_msec(); | |
4259 | if (rule->up.hard_timeout | |
308881af | 4260 | && now > rule->up.modified + rule->up.hard_timeout * 1000) { |
abe529af | 4261 | reason = OFPRR_HARD_TIMEOUT; |
8ea6ac3e | 4262 | } else if (rule->up.idle_timeout |
1745cd08 | 4263 | && now > rule->up.used + rule->up.idle_timeout * 1000) { |
abe529af BP |
4264 | reason = OFPRR_IDLE_TIMEOUT; |
4265 | } else { | |
4266 | return; | |
4267 | } | |
4268 | ||
4269 | COVERAGE_INC(ofproto_dpif_expired); | |
4270 | ||
4271 | /* Update stats. (This is a no-op if the rule expired due to an idle | |
4272 | * timeout, because that only happens when the rule has no facets left.) */ | |
4273 | LIST_FOR_EACH_SAFE (facet, next_facet, list_node, &rule->facets) { | |
15baa734 | 4274 | facet_remove(facet); |
abe529af BP |
4275 | } |
4276 | ||
4277 | /* Get rid of the rule. */ | |
4278 | ofproto_rule_expire(&rule->up, reason); | |
4279 | } | |
4280 | \f | |
4281 | /* Facets. */ | |
4282 | ||
4dff9097 | 4283 | /* Creates and returns a new facet based on 'miss'. |
abe529af BP |
4284 | * |
4285 | * The caller must already have determined that no facet with an identical | |
4dff9097 | 4286 | * 'miss->flow' exists in 'miss->ofproto'. |
f3827897 | 4287 | * |
bcd2633a JP |
4288 | * 'rule' and 'xout' must have been created based on 'miss'. |
4289 | * | |
4290 | * 'facet'' statistics are initialized based on 'stats'. | |
2b459b83 | 4291 | * |
b0f7b9b5 BP |
4292 | * The facet will initially have no subfacets. The caller should create (at |
4293 | * least) one subfacet with subfacet_create(). */ | |
abe529af | 4294 | static struct facet * |
bcd2633a JP |
4295 | facet_create(const struct flow_miss *miss, struct rule_dpif *rule, |
4296 | struct xlate_out *xout, struct dpif_flow_stats *stats) | |
abe529af | 4297 | { |
4dff9097 | 4298 | struct ofproto_dpif *ofproto = miss->ofproto; |
abe529af | 4299 | struct facet *facet; |
bcd2633a | 4300 | struct match match; |
abe529af BP |
4301 | |
4302 | facet = xzalloc(sizeof *facet); | |
bcd2633a JP |
4303 | facet->packet_count = facet->prev_packet_count = stats->n_packets; |
4304 | facet->byte_count = facet->prev_byte_count = stats->n_bytes; | |
4305 | facet->tcp_flags = stats->tcp_flags; | |
4306 | facet->used = stats->used; | |
4dff9097 | 4307 | facet->flow = miss->flow; |
4dff9097 | 4308 | facet->learn_rl = time_msec() + 500; |
bcd2633a | 4309 | facet->rule = rule; |
4dff9097 | 4310 | |
4dff9097 | 4311 | list_push_back(&facet->rule->facets, &facet->list_node); |
b0f7b9b5 | 4312 | list_init(&facet->subfacets); |
abe529af BP |
4313 | netflow_flow_init(&facet->nf_flow); |
4314 | netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, facet->used); | |
4315 | ||
bcd2633a JP |
4316 | xlate_out_copy(&facet->xout, xout); |
4317 | ||
4318 | match_init(&match, &facet->flow, &facet->xout.wc); | |
4319 | cls_rule_init(&facet->cr, &match, OFP_DEFAULT_PRIORITY); | |
4320 | classifier_insert(&ofproto->facets, &facet->cr); | |
4321 | ||
bbafd73b | 4322 | facet->nf_flow.output_iface = facet->xout.nf_output_iface; |
6cf474d7 | 4323 | |
abe529af BP |
4324 | return facet; |
4325 | } | |
4326 | ||
4327 | static void | |
4328 | facet_free(struct facet *facet) | |
4329 | { | |
4dff9097 | 4330 | if (facet) { |
bbafd73b | 4331 | xlate_out_uninit(&facet->xout); |
4dff9097 EJ |
4332 | free(facet); |
4333 | } | |
abe529af BP |
4334 | } |
4335 | ||
3d9e05f8 | 4336 | /* Executes, within 'ofproto', the 'n_actions' actions in 'actions' on |
0a740f48 | 4337 | * 'packet', which arrived on 'in_port'. */ |
3d9e05f8 BP |
4338 | static bool |
4339 | execute_odp_actions(struct ofproto_dpif *ofproto, const struct flow *flow, | |
4340 | const struct nlattr *odp_actions, size_t actions_len, | |
4341 | struct ofpbuf *packet) | |
4342 | { | |
4343 | struct odputil_keybuf keybuf; | |
4344 | struct ofpbuf key; | |
4345 | int error; | |
4346 | ||
6ff686f2 | 4347 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); |
e1b1d06a JP |
4348 | odp_flow_key_from_flow(&key, flow, |
4349 | ofp_port_to_odp_port(ofproto, flow->in_port)); | |
80e5eed9 | 4350 | |
acf60855 | 4351 | error = dpif_execute(ofproto->backer->dpif, key.data, key.size, |
6ff686f2 | 4352 | odp_actions, actions_len, packet); |
6ff686f2 | 4353 | return !error; |
abe529af BP |
4354 | } |
4355 | ||
bcd2633a | 4356 | /* Remove 'facet' from its ofproto and free up the associated memory: |
abe529af BP |
4357 | * |
4358 | * - If 'facet' was installed in the datapath, uninstalls it and updates its | |
b0f7b9b5 | 4359 | * rule's statistics, via subfacet_uninstall(). |
abe529af BP |
4360 | * |
4361 | * - Removes 'facet' from its rule and from ofproto->facets. | |
4362 | */ | |
4363 | static void | |
15baa734 | 4364 | facet_remove(struct facet *facet) |
abe529af | 4365 | { |
15baa734 | 4366 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
b0f7b9b5 BP |
4367 | struct subfacet *subfacet, *next_subfacet; |
4368 | ||
cb22974d | 4369 | ovs_assert(!list_is_empty(&facet->subfacets)); |
551a2f6c BP |
4370 | |
4371 | /* First uninstall all of the subfacets to get final statistics. */ | |
4372 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
15baa734 | 4373 | subfacet_uninstall(subfacet); |
551a2f6c BP |
4374 | } |
4375 | ||
4376 | /* Flush the final stats to the rule. | |
4377 | * | |
4378 | * This might require us to have at least one subfacet around so that we | |
4379 | * can use its actions for accounting in facet_account(), which is why we | |
4380 | * have uninstalled but not yet destroyed the subfacets. */ | |
15baa734 | 4381 | facet_flush_stats(facet); |
551a2f6c BP |
4382 | |
4383 | /* Now we're really all done so destroy everything. */ | |
b0f7b9b5 BP |
4384 | LIST_FOR_EACH_SAFE (subfacet, next_subfacet, list_node, |
4385 | &facet->subfacets) { | |
15baa734 | 4386 | subfacet_destroy__(subfacet); |
b0f7b9b5 | 4387 | } |
bcd2633a JP |
4388 | classifier_remove(&ofproto->facets, &facet->cr); |
4389 | cls_rule_destroy(&facet->cr); | |
abe529af BP |
4390 | list_remove(&facet->list_node); |
4391 | facet_free(facet); | |
4392 | } | |
4393 | ||
3de9590b BP |
4394 | /* Feed information from 'facet' back into the learning table to keep it in |
4395 | * sync with what is actually flowing through the datapath. */ | |
abe529af | 4396 | static void |
3de9590b | 4397 | facet_learn(struct facet *facet) |
abe529af | 4398 | { |
62bd7349 | 4399 | long long int now = time_msec(); |
abe529af | 4400 | |
bbafd73b | 4401 | if (!facet->xout.has_fin_timeout && now < facet->learn_rl) { |
6cf474d7 EJ |
4402 | return; |
4403 | } | |
4404 | ||
62bd7349 | 4405 | facet->learn_rl = now + 500; |
6cf474d7 | 4406 | |
bbafd73b EJ |
4407 | if (!facet->xout.has_learn |
4408 | && !facet->xout.has_normal | |
4409 | && (!facet->xout.has_fin_timeout | |
3de9590b | 4410 | || !(facet->tcp_flags & (TCP_FIN | TCP_RST)))) { |
abe529af BP |
4411 | return; |
4412 | } | |
abe529af | 4413 | |
9dfb1f78 | 4414 | facet_push_stats(facet, true); |
3de9590b BP |
4415 | } |
4416 | ||
4417 | static void | |
4418 | facet_account(struct facet *facet) | |
4419 | { | |
4420 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
3de9590b BP |
4421 | const struct nlattr *a; |
4422 | unsigned int left; | |
4423 | ovs_be16 vlan_tci; | |
4424 | uint64_t n_bytes; | |
abe529af | 4425 | |
bbafd73b | 4426 | if (!facet->xout.has_normal || !ofproto->has_bonded_bundles) { |
abe529af BP |
4427 | return; |
4428 | } | |
3de9590b | 4429 | n_bytes = facet->byte_count - facet->accounted_bytes; |
d78be13b BP |
4430 | |
4431 | /* This loop feeds byte counters to bond_account() for rebalancing to use | |
4432 | * as a basis. We also need to track the actual VLAN on which the packet | |
4433 | * is going to be sent to ensure that it matches the one passed to | |
4434 | * bond_choose_output_slave(). (Otherwise, we will account to the wrong | |
b95fc6ba BP |
4435 | * hash bucket.) |
4436 | * | |
4437 | * We use the actions from an arbitrary subfacet because they should all | |
4438 | * be equally valid for our purpose. */ | |
d78be13b | 4439 | vlan_tci = facet->flow.vlan_tci; |
bbafd73b EJ |
4440 | NL_ATTR_FOR_EACH_UNSAFE (a, left, facet->xout.odp_actions.data, |
4441 | facet->xout.odp_actions.size) { | |
fea393b1 | 4442 | const struct ovs_action_push_vlan *vlan; |
d78be13b | 4443 | struct ofport_dpif *port; |
abe529af | 4444 | |
d78be13b | 4445 | switch (nl_attr_type(a)) { |
df2c07f4 | 4446 | case OVS_ACTION_ATTR_OUTPUT: |
abe529af BP |
4447 | port = get_odp_port(ofproto, nl_attr_get_u32(a)); |
4448 | if (port && port->bundle && port->bundle->bond) { | |
d78be13b | 4449 | bond_account(port->bundle->bond, &facet->flow, |
dc155bff | 4450 | vlan_tci_to_vid(vlan_tci), n_bytes); |
abe529af | 4451 | } |
d78be13b BP |
4452 | break; |
4453 | ||
fea393b1 BP |
4454 | case OVS_ACTION_ATTR_POP_VLAN: |
4455 | vlan_tci = htons(0); | |
d78be13b BP |
4456 | break; |
4457 | ||
fea393b1 BP |
4458 | case OVS_ACTION_ATTR_PUSH_VLAN: |
4459 | vlan = nl_attr_get(a); | |
4460 | vlan_tci = vlan->vlan_tci; | |
d78be13b | 4461 | break; |
abe529af BP |
4462 | } |
4463 | } | |
4464 | } | |
4465 | ||
abe529af BP |
4466 | /* Returns true if the only action for 'facet' is to send to the controller. |
4467 | * (We don't report NetFlow expiration messages for such facets because they | |
4468 | * are just part of the control logic for the network, not real traffic). */ | |
4469 | static bool | |
4470 | facet_is_controller_flow(struct facet *facet) | |
4471 | { | |
f25d0cf3 BP |
4472 | if (facet) { |
4473 | const struct rule *rule = &facet->rule->up; | |
4474 | const struct ofpact *ofpacts = rule->ofpacts; | |
4475 | size_t ofpacts_len = rule->ofpacts_len; | |
4476 | ||
dd30ff28 BP |
4477 | if (ofpacts_len > 0 && |
4478 | ofpacts->type == OFPACT_CONTROLLER && | |
f25d0cf3 BP |
4479 | ofpact_next(ofpacts) >= ofpact_end(ofpacts, ofpacts_len)) { |
4480 | return true; | |
4481 | } | |
4482 | } | |
4483 | return false; | |
abe529af BP |
4484 | } |
4485 | ||
4486 | /* Folds all of 'facet''s statistics into its rule. Also updates the | |
4487 | * accounting ofhook and emits a NetFlow expiration if appropriate. All of | |
4488 | * 'facet''s statistics in the datapath should have been zeroed and folded into | |
4489 | * its packet and byte counts before this function is called. */ | |
4490 | static void | |
15baa734 | 4491 | facet_flush_stats(struct facet *facet) |
abe529af | 4492 | { |
15baa734 | 4493 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
b0f7b9b5 BP |
4494 | struct subfacet *subfacet; |
4495 | ||
4496 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
cb22974d BP |
4497 | ovs_assert(!subfacet->dp_byte_count); |
4498 | ovs_assert(!subfacet->dp_packet_count); | |
b0f7b9b5 | 4499 | } |
abe529af | 4500 | |
9dfb1f78 | 4501 | facet_push_stats(facet, false); |
3de9590b BP |
4502 | if (facet->accounted_bytes < facet->byte_count) { |
4503 | facet_account(facet); | |
4504 | facet->accounted_bytes = facet->byte_count; | |
4505 | } | |
abe529af BP |
4506 | |
4507 | if (ofproto->netflow && !facet_is_controller_flow(facet)) { | |
4508 | struct ofexpired expired; | |
4509 | expired.flow = facet->flow; | |
4510 | expired.packet_count = facet->packet_count; | |
4511 | expired.byte_count = facet->byte_count; | |
4512 | expired.used = facet->used; | |
4513 | netflow_expire(ofproto->netflow, &facet->nf_flow, &expired); | |
4514 | } | |
4515 | ||
abe529af BP |
4516 | /* Reset counters to prevent double counting if 'facet' ever gets |
4517 | * reinstalled. */ | |
bbb5d219 | 4518 | facet_reset_counters(facet); |
abe529af BP |
4519 | |
4520 | netflow_flow_clear(&facet->nf_flow); | |
0e553d9c | 4521 | facet->tcp_flags = 0; |
abe529af BP |
4522 | } |
4523 | ||
bcd2633a JP |
4524 | /* Searches 'ofproto''s table of facets for one which would be responsible for |
4525 | * 'flow'. Returns it if found, otherwise a null pointer. | |
2b459b83 | 4526 | * |
abe529af BP |
4527 | * The returned facet might need revalidation; use facet_lookup_valid() |
4528 | * instead if that is important. */ | |
4529 | static struct facet * | |
bcd2633a | 4530 | facet_find(struct ofproto_dpif *ofproto, const struct flow *flow) |
abe529af | 4531 | { |
bcd2633a JP |
4532 | struct cls_rule *cr = classifier_lookup(&ofproto->facets, flow, NULL); |
4533 | return cr ? CONTAINER_OF(cr, struct facet, cr) : NULL; | |
abe529af BP |
4534 | } |
4535 | ||
bcd2633a JP |
4536 | /* Searches 'ofproto''s table of facets for one capable that covers |
4537 | * 'flow'. Returns it if found, otherwise a null pointer. | |
2b459b83 | 4538 | * |
abe529af BP |
4539 | * The returned facet is guaranteed to be valid. */ |
4540 | static struct facet * | |
bcd2633a | 4541 | facet_lookup_valid(struct ofproto_dpif *ofproto, const struct flow *flow) |
abe529af | 4542 | { |
c57b2226 | 4543 | struct facet *facet; |
abe529af | 4544 | |
bcd2633a | 4545 | facet = facet_find(ofproto, flow); |
abe529af | 4546 | if (facet |
2cc3c58e EJ |
4547 | && (ofproto->backer->need_revalidate |
4548 | || tag_set_intersects(&ofproto->backer->revalidate_set, | |
bbafd73b | 4549 | facet->xout.tags)) |
5bf64ade | 4550 | && !facet_revalidate(facet)) { |
0305ce1f | 4551 | return NULL; |
abe529af BP |
4552 | } |
4553 | ||
4554 | return facet; | |
4555 | } | |
4556 | ||
6814e51f BP |
4557 | static bool |
4558 | facet_check_consistency(struct facet *facet) | |
4559 | { | |
4560 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15); | |
4561 | ||
4562 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
4563 | ||
bbafd73b EJ |
4564 | struct xlate_out xout; |
4565 | struct xlate_in xin; | |
050ac423 | 4566 | |
6814e51f | 4567 | struct rule_dpif *rule; |
6814e51f BP |
4568 | bool ok; |
4569 | ||
4570 | /* Check the rule for consistency. */ | |
bcd2633a | 4571 | rule = rule_dpif_lookup(ofproto, &facet->flow, NULL); |
4dff9097 EJ |
4572 | if (rule != facet->rule) { |
4573 | if (!VLOG_DROP_WARN(&rl)) { | |
4574 | struct ds s = DS_EMPTY_INITIALIZER; | |
6814e51f | 4575 | |
c53e1132 BP |
4576 | flow_format(&s, &facet->flow); |
4577 | ds_put_format(&s, ": facet associated with wrong rule (was " | |
4578 | "table=%"PRIu8",", facet->rule->up.table_id); | |
4579 | cls_rule_format(&facet->rule->up.cr, &s); | |
4580 | ds_put_format(&s, ") (should have been table=%"PRIu8",", | |
4581 | rule->up.table_id); | |
4582 | cls_rule_format(&rule->up.cr, &s); | |
c0a71f4e | 4583 | ds_put_char(&s, ')'); |
6814e51f | 4584 | |
c0a71f4e | 4585 | VLOG_WARN("%s", ds_cstr(&s)); |
c53e1132 BP |
4586 | ds_destroy(&s); |
4587 | } | |
4dff9097 | 4588 | return false; |
6814e51f BP |
4589 | } |
4590 | ||
4591 | /* Check the datapath actions for consistency. */ | |
47b0deae | 4592 | xlate_in_init(&xin, ofproto, &facet->flow, rule, 0, NULL); |
bbafd73b | 4593 | xlate_actions(&xin, &xout); |
6814e51f | 4594 | |
bbafd73b EJ |
4595 | ok = ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions) |
4596 | && facet->xout.slow == xout.slow; | |
4dff9097 EJ |
4597 | if (!ok && !VLOG_DROP_WARN(&rl)) { |
4598 | struct ds s = DS_EMPTY_INITIALIZER; | |
c53e1132 | 4599 | |
4dff9097 EJ |
4600 | flow_format(&s, &facet->flow); |
4601 | ds_put_cstr(&s, ": inconsistency in facet"); | |
c53e1132 | 4602 | |
bbafd73b | 4603 | if (!ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)) { |
9616614b | 4604 | ds_put_cstr(&s, " (actions were: "); |
bbafd73b EJ |
4605 | format_odp_actions(&s, facet->xout.odp_actions.data, |
4606 | facet->xout.odp_actions.size); | |
9616614b | 4607 | ds_put_cstr(&s, ") (correct actions: "); |
bbafd73b EJ |
4608 | format_odp_actions(&s, xout.odp_actions.data, |
4609 | xout.odp_actions.size); | |
c0a71f4e | 4610 | ds_put_char(&s, ')'); |
6814e51f | 4611 | } |
4dff9097 | 4612 | |
bbafd73b EJ |
4613 | if (facet->xout.slow != xout.slow) { |
4614 | ds_put_format(&s, " slow path incorrect. should be %d", xout.slow); | |
4dff9097 EJ |
4615 | } |
4616 | ||
c0a71f4e | 4617 | VLOG_WARN("%s", ds_cstr(&s)); |
9616614b | 4618 | ds_destroy(&s); |
6814e51f | 4619 | } |
bbafd73b | 4620 | xlate_out_uninit(&xout); |
6814e51f BP |
4621 | |
4622 | return ok; | |
4623 | } | |
4624 | ||
15baa734 | 4625 | /* Re-searches the classifier for 'facet': |
abe529af BP |
4626 | * |
4627 | * - If the rule found is different from 'facet''s current rule, moves | |
4628 | * 'facet' to the new rule and recompiles its actions. | |
4629 | * | |
4630 | * - If the rule found is the same as 'facet''s current rule, leaves 'facet' | |
f231418e EJ |
4631 | * where it is and recompiles its actions anyway. |
4632 | * | |
4633 | * - If any of 'facet''s subfacets correspond to a new flow according to | |
5bf64ade EJ |
4634 | * ofproto_receive(), 'facet' is removed. |
4635 | * | |
4636 | * Returns true if 'facet' is still valid. False if 'facet' was removed. */ | |
4637 | static bool | |
15baa734 | 4638 | facet_revalidate(struct facet *facet) |
abe529af | 4639 | { |
15baa734 | 4640 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
abe529af | 4641 | struct rule_dpif *new_rule; |
b0f7b9b5 | 4642 | struct subfacet *subfacet; |
bcd2633a | 4643 | struct flow_wildcards wc; |
bbafd73b EJ |
4644 | struct xlate_out xout; |
4645 | struct xlate_in xin; | |
abe529af BP |
4646 | |
4647 | COVERAGE_INC(facet_revalidate); | |
4648 | ||
f231418e EJ |
4649 | /* Check that child subfacets still correspond to this facet. Tunnel |
4650 | * configuration changes could cause a subfacet's OpenFlow in_port to | |
4651 | * change. */ | |
4652 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
4653 | struct ofproto_dpif *recv_ofproto; | |
4654 | struct flow recv_flow; | |
4655 | int error; | |
4656 | ||
4657 | error = ofproto_receive(ofproto->backer, NULL, subfacet->key, | |
4658 | subfacet->key_len, &recv_flow, NULL, | |
47b0deae | 4659 | &recv_ofproto, NULL); |
f231418e EJ |
4660 | if (error |
4661 | || recv_ofproto != ofproto | |
bcd2633a | 4662 | || facet != facet_find(ofproto, &recv_flow)) { |
f231418e | 4663 | facet_remove(facet); |
5bf64ade | 4664 | return false; |
f231418e EJ |
4665 | } |
4666 | } | |
4667 | ||
bcd2633a JP |
4668 | flow_wildcards_init_catchall(&wc); |
4669 | new_rule = rule_dpif_lookup(ofproto, &facet->flow, &wc); | |
abe529af | 4670 | |
df2c07f4 | 4671 | /* Calculate new datapath actions. |
abe529af BP |
4672 | * |
4673 | * We do not modify any 'facet' state yet, because we might need to, e.g., | |
4674 | * emit a NetFlow expiration and, if so, we need to have the old state | |
4675 | * around to properly compose it. */ | |
47b0deae | 4676 | xlate_in_init(&xin, ofproto, &facet->flow, new_rule, 0, NULL); |
bbafd73b | 4677 | xlate_actions(&xin, &xout); |
bcd2633a | 4678 | flow_wildcards_or(&xout.wc, &xout.wc, &wc); |
4dff9097 EJ |
4679 | |
4680 | /* A facet's slow path reason should only change under dramatic | |
4681 | * circumstances. Rather than try to update everything, it's simpler to | |
bcd2633a JP |
4682 | * remove the facet and start over. |
4683 | * | |
4684 | * More importantly, if a facet's wildcards change, it will be relatively | |
4685 | * difficult to figure out if its subfacets still belong to it, and if not | |
4686 | * which facet they may belong to. Again, to avoid the complexity, we | |
4687 | * simply give up instead. */ | |
4688 | if (facet->xout.slow != xout.slow | |
4689 | || memcmp(&facet->xout.wc, &xout.wc, sizeof xout.wc)) { | |
4dff9097 | 4690 | facet_remove(facet); |
bbafd73b | 4691 | xlate_out_uninit(&xout); |
4dff9097 EJ |
4692 | return false; |
4693 | } | |
6a7e895f | 4694 | |
bbafd73b | 4695 | if (!ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)) { |
4dff9097 EJ |
4696 | LIST_FOR_EACH(subfacet, list_node, &facet->subfacets) { |
4697 | if (subfacet->path == SF_FAST_PATH) { | |
4698 | struct dpif_flow_stats stats; | |
b95fc6ba | 4699 | |
bbafd73b | 4700 | subfacet_install(subfacet, &xout.odp_actions, &stats); |
4dff9097 | 4701 | subfacet_update_stats(subfacet, &stats); |
b95fc6ba | 4702 | } |
abe529af | 4703 | } |
b95fc6ba | 4704 | |
15baa734 | 4705 | facet_flush_stats(facet); |
4dff9097 | 4706 | |
bbafd73b EJ |
4707 | ofpbuf_clear(&facet->xout.odp_actions); |
4708 | ofpbuf_put(&facet->xout.odp_actions, xout.odp_actions.data, | |
4709 | xout.odp_actions.size); | |
abe529af BP |
4710 | } |
4711 | ||
4712 | /* Update 'facet' now that we've taken care of all the old state. */ | |
bbafd73b EJ |
4713 | facet->xout.tags = xout.tags; |
4714 | facet->xout.slow = xout.slow; | |
4715 | facet->xout.has_learn = xout.has_learn; | |
4716 | facet->xout.has_normal = xout.has_normal; | |
4717 | facet->xout.has_fin_timeout = xout.has_fin_timeout; | |
4718 | facet->xout.nf_output_iface = xout.nf_output_iface; | |
4719 | facet->xout.mirrors = xout.mirrors; | |
4720 | facet->nf_flow.output_iface = facet->xout.nf_output_iface; | |
6a7e895f | 4721 | |
abe529af BP |
4722 | if (facet->rule != new_rule) { |
4723 | COVERAGE_INC(facet_changed_rule); | |
4724 | list_remove(&facet->list_node); | |
4725 | list_push_back(&new_rule->facets, &facet->list_node); | |
4726 | facet->rule = new_rule; | |
4727 | facet->used = new_rule->up.created; | |
9d24de3b | 4728 | facet->prev_used = facet->used; |
abe529af | 4729 | } |
5bf64ade | 4730 | |
bbafd73b | 4731 | xlate_out_uninit(&xout); |
5bf64ade | 4732 | return true; |
abe529af BP |
4733 | } |
4734 | ||
bbb5d219 EJ |
4735 | static void |
4736 | facet_reset_counters(struct facet *facet) | |
4737 | { | |
4738 | facet->packet_count = 0; | |
4739 | facet->byte_count = 0; | |
9d24de3b JP |
4740 | facet->prev_packet_count = 0; |
4741 | facet->prev_byte_count = 0; | |
bbb5d219 EJ |
4742 | facet->accounted_bytes = 0; |
4743 | } | |
4744 | ||
abe529af | 4745 | static void |
9dfb1f78 | 4746 | facet_push_stats(struct facet *facet, bool may_learn) |
abe529af | 4747 | { |
112bc5f4 | 4748 | struct dpif_flow_stats stats; |
abe529af | 4749 | |
cb22974d BP |
4750 | ovs_assert(facet->packet_count >= facet->prev_packet_count); |
4751 | ovs_assert(facet->byte_count >= facet->prev_byte_count); | |
4752 | ovs_assert(facet->used >= facet->prev_used); | |
abe529af | 4753 | |
112bc5f4 BP |
4754 | stats.n_packets = facet->packet_count - facet->prev_packet_count; |
4755 | stats.n_bytes = facet->byte_count - facet->prev_byte_count; | |
4756 | stats.used = facet->used; | |
9dfb1f78 EJ |
4757 | stats.tcp_flags = facet->tcp_flags; |
4758 | ||
4759 | if (may_learn || stats.n_packets || facet->used > facet->prev_used) { | |
4760 | struct ofproto_dpif *ofproto = | |
4761 | ofproto_dpif_cast(facet->rule->up.ofproto); | |
4762 | ||
4763 | struct ofport_dpif *in_port; | |
4764 | struct xlate_in xin; | |
abe529af | 4765 | |
9d24de3b JP |
4766 | facet->prev_packet_count = facet->packet_count; |
4767 | facet->prev_byte_count = facet->byte_count; | |
4768 | facet->prev_used = facet->used; | |
abe529af | 4769 | |
9dfb1f78 EJ |
4770 | in_port = get_ofp_port(ofproto, facet->flow.in_port); |
4771 | if (in_port && in_port->tnl_port) { | |
4772 | netdev_vport_inc_rx(in_port->up.netdev, &stats); | |
4773 | } | |
9d24de3b | 4774 | |
9dfb1f78 EJ |
4775 | rule_credit_stats(facet->rule, &stats); |
4776 | netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, | |
4777 | facet->used); | |
4778 | netflow_flow_update_flags(&facet->nf_flow, facet->tcp_flags); | |
4779 | update_mirror_stats(ofproto, facet->xout.mirrors, stats.n_packets, | |
bbafd73b | 4780 | stats.n_bytes); |
9dfb1f78 | 4781 | |
47b0deae EJ |
4782 | xlate_in_init(&xin, ofproto, &facet->flow, facet->rule, |
4783 | stats.tcp_flags, NULL); | |
9dfb1f78 EJ |
4784 | xin.resubmit_stats = &stats; |
4785 | xin.may_learn = may_learn; | |
4786 | xlate_actions_for_side_effects(&xin); | |
abe529af BP |
4787 | } |
4788 | } | |
4789 | ||
8844e035 | 4790 | static void |
4464589e | 4791 | push_all_stats__(bool run_fast) |
8844e035 EJ |
4792 | { |
4793 | static long long int rl = LLONG_MIN; | |
4794 | struct ofproto_dpif *ofproto; | |
4795 | ||
4796 | if (time_msec() < rl) { | |
4797 | return; | |
4798 | } | |
4799 | ||
4800 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
bcd2633a | 4801 | struct cls_cursor cursor; |
8844e035 EJ |
4802 | struct facet *facet; |
4803 | ||
bcd2633a JP |
4804 | cls_cursor_init(&cursor, &ofproto->facets, NULL); |
4805 | CLS_CURSOR_FOR_EACH (facet, cr, &cursor) { | |
9dfb1f78 | 4806 | facet_push_stats(facet, false); |
4464589e EJ |
4807 | if (run_fast) { |
4808 | run_fast_rl(); | |
4809 | } | |
8844e035 EJ |
4810 | } |
4811 | } | |
4812 | ||
4813 | rl = time_msec() + 100; | |
4814 | } | |
4815 | ||
4464589e EJ |
4816 | static void |
4817 | push_all_stats(void) | |
4818 | { | |
4819 | push_all_stats__(true); | |
4820 | } | |
4821 | ||
9583bc14 | 4822 | void |
112bc5f4 | 4823 | rule_credit_stats(struct rule_dpif *rule, const struct dpif_flow_stats *stats) |
abe529af | 4824 | { |
112bc5f4 BP |
4825 | rule->packet_count += stats->n_packets; |
4826 | rule->byte_count += stats->n_bytes; | |
4827 | ofproto_rule_update_used(&rule->up, stats->used); | |
abe529af | 4828 | } |
abe529af | 4829 | \f |
b0f7b9b5 BP |
4830 | /* Subfacets. */ |
4831 | ||
4832 | static struct subfacet * | |
04d08d54 EJ |
4833 | subfacet_find(struct dpif_backer *backer, const struct nlattr *key, |
4834 | size_t key_len, uint32_t key_hash) | |
b0f7b9b5 BP |
4835 | { |
4836 | struct subfacet *subfacet; | |
4837 | ||
4838 | HMAP_FOR_EACH_WITH_HASH (subfacet, hmap_node, key_hash, | |
04d08d54 | 4839 | &backer->subfacets) { |
9566abf9 EJ |
4840 | if (subfacet->key_len == key_len |
4841 | && !memcmp(key, subfacet->key, key_len)) { | |
b0f7b9b5 BP |
4842 | return subfacet; |
4843 | } | |
4844 | } | |
4845 | ||
4846 | return NULL; | |
4847 | } | |
4848 | ||
4849 | /* Searches 'facet' (within 'ofproto') for a subfacet with the specified | |
a088a1ff JP |
4850 | * 'key_fitness', 'key', and 'key_len' members in 'miss'. Returns the |
4851 | * existing subfacet if there is one, otherwise creates and returns a | |
4dff9097 | 4852 | * new subfacet. */ |
b0f7b9b5 | 4853 | static struct subfacet * |
a088a1ff JP |
4854 | subfacet_create(struct facet *facet, struct flow_miss *miss, |
4855 | long long int now) | |
b0f7b9b5 | 4856 | { |
04d08d54 | 4857 | struct dpif_backer *backer = miss->ofproto->backer; |
a088a1ff JP |
4858 | enum odp_key_fitness key_fitness = miss->key_fitness; |
4859 | const struct nlattr *key = miss->key; | |
4860 | size_t key_len = miss->key_len; | |
4861 | uint32_t key_hash; | |
b0f7b9b5 BP |
4862 | struct subfacet *subfacet; |
4863 | ||
a088a1ff JP |
4864 | key_hash = odp_flow_key_hash(key, key_len); |
4865 | ||
3b145dd7 BP |
4866 | if (list_is_empty(&facet->subfacets)) { |
4867 | subfacet = &facet->one_subfacet; | |
4868 | } else { | |
04d08d54 | 4869 | subfacet = subfacet_find(backer, key, key_len, key_hash); |
3b145dd7 BP |
4870 | if (subfacet) { |
4871 | if (subfacet->facet == facet) { | |
4872 | return subfacet; | |
4873 | } | |
4874 | ||
4875 | /* This shouldn't happen. */ | |
4876 | VLOG_ERR_RL(&rl, "subfacet with wrong facet"); | |
4877 | subfacet_destroy(subfacet); | |
b0f7b9b5 BP |
4878 | } |
4879 | ||
3b145dd7 | 4880 | subfacet = xmalloc(sizeof *subfacet); |
b0f7b9b5 BP |
4881 | } |
4882 | ||
04d08d54 | 4883 | hmap_insert(&backer->subfacets, &subfacet->hmap_node, key_hash); |
b0f7b9b5 BP |
4884 | list_push_back(&facet->subfacets, &subfacet->list_node); |
4885 | subfacet->facet = facet; | |
b0f7b9b5 | 4886 | subfacet->key_fitness = key_fitness; |
9566abf9 EJ |
4887 | subfacet->key = xmemdup(key, key_len); |
4888 | subfacet->key_len = key_len; | |
459b16a1 | 4889 | subfacet->used = now; |
655ab909 | 4890 | subfacet->created = now; |
26cd7e34 BP |
4891 | subfacet->dp_packet_count = 0; |
4892 | subfacet->dp_byte_count = 0; | |
6a7e895f | 4893 | subfacet->path = SF_NOT_INSTALLED; |
04d08d54 | 4894 | subfacet->backer = backer; |
b0f7b9b5 | 4895 | |
04d08d54 | 4896 | backer->subfacet_add_count++; |
b0f7b9b5 BP |
4897 | return subfacet; |
4898 | } | |
4899 | ||
b0f7b9b5 BP |
4900 | /* Uninstalls 'subfacet' from the datapath, if it is installed, removes it from |
4901 | * its facet within 'ofproto', and frees it. */ | |
4902 | static void | |
15baa734 | 4903 | subfacet_destroy__(struct subfacet *subfacet) |
b0f7b9b5 | 4904 | { |
15baa734 BP |
4905 | struct facet *facet = subfacet->facet; |
4906 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
4907 | ||
655ab909 | 4908 | /* Update ofproto stats before uninstall the subfacet. */ |
dc54ef36 | 4909 | ofproto->backer->subfacet_del_count++; |
655ab909 | 4910 | |
15baa734 | 4911 | subfacet_uninstall(subfacet); |
04d08d54 | 4912 | hmap_remove(&subfacet->backer->subfacets, &subfacet->hmap_node); |
b0f7b9b5 BP |
4913 | list_remove(&subfacet->list_node); |
4914 | free(subfacet->key); | |
26cd7e34 BP |
4915 | if (subfacet != &facet->one_subfacet) { |
4916 | free(subfacet); | |
4917 | } | |
b0f7b9b5 BP |
4918 | } |
4919 | ||
4920 | /* Destroys 'subfacet', as with subfacet_destroy__(), and then if this was the | |
4921 | * last remaining subfacet in its facet destroys the facet too. */ | |
4922 | static void | |
15baa734 | 4923 | subfacet_destroy(struct subfacet *subfacet) |
b0f7b9b5 BP |
4924 | { |
4925 | struct facet *facet = subfacet->facet; | |
4926 | ||
551a2f6c BP |
4927 | if (list_is_singleton(&facet->subfacets)) { |
4928 | /* facet_remove() needs at least one subfacet (it will remove it). */ | |
15baa734 | 4929 | facet_remove(facet); |
551a2f6c | 4930 | } else { |
15baa734 | 4931 | subfacet_destroy__(subfacet); |
b0f7b9b5 BP |
4932 | } |
4933 | } | |
4934 | ||
1d85f9e5 | 4935 | static void |
04d08d54 | 4936 | subfacet_destroy_batch(struct dpif_backer *backer, |
1d85f9e5 JP |
4937 | struct subfacet **subfacets, int n) |
4938 | { | |
1d85f9e5 JP |
4939 | struct dpif_op ops[SUBFACET_DESTROY_MAX_BATCH]; |
4940 | struct dpif_op *opsp[SUBFACET_DESTROY_MAX_BATCH]; | |
1d85f9e5 JP |
4941 | struct dpif_flow_stats stats[SUBFACET_DESTROY_MAX_BATCH]; |
4942 | int i; | |
4943 | ||
4944 | for (i = 0; i < n; i++) { | |
4945 | ops[i].type = DPIF_OP_FLOW_DEL; | |
9566abf9 EJ |
4946 | ops[i].u.flow_del.key = subfacets[i]->key; |
4947 | ops[i].u.flow_del.key_len = subfacets[i]->key_len; | |
1d85f9e5 JP |
4948 | ops[i].u.flow_del.stats = &stats[i]; |
4949 | opsp[i] = &ops[i]; | |
4950 | } | |
4951 | ||
04d08d54 | 4952 | dpif_operate(backer->dpif, opsp, n); |
1d85f9e5 JP |
4953 | for (i = 0; i < n; i++) { |
4954 | subfacet_reset_dp_stats(subfacets[i], &stats[i]); | |
4955 | subfacets[i]->path = SF_NOT_INSTALLED; | |
4956 | subfacet_destroy(subfacets[i]); | |
8fa4d1d0 | 4957 | run_fast_rl(); |
1d85f9e5 JP |
4958 | } |
4959 | } | |
4960 | ||
b0f7b9b5 BP |
4961 | /* Updates 'subfacet''s datapath flow, setting its actions to 'actions_len' |
4962 | * bytes of actions in 'actions'. If 'stats' is non-null, statistics counters | |
4963 | * in the datapath will be zeroed and 'stats' will be updated with traffic new | |
4964 | * since 'subfacet' was last updated. | |
4965 | * | |
4966 | * Returns 0 if successful, otherwise a positive errno value. */ | |
4967 | static int | |
4dff9097 EJ |
4968 | subfacet_install(struct subfacet *subfacet, const struct ofpbuf *odp_actions, |
4969 | struct dpif_flow_stats *stats) | |
b0f7b9b5 | 4970 | { |
15baa734 BP |
4971 | struct facet *facet = subfacet->facet; |
4972 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
bbafd73b | 4973 | enum subfacet_path path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH; |
4dff9097 EJ |
4974 | const struct nlattr *actions = odp_actions->data; |
4975 | size_t actions_len = odp_actions->size; | |
4976 | ||
6a7e895f | 4977 | uint64_t slow_path_stub[128 / 8]; |
b0f7b9b5 | 4978 | enum dpif_flow_put_flags flags; |
b0f7b9b5 BP |
4979 | int ret; |
4980 | ||
4981 | flags = DPIF_FP_CREATE | DPIF_FP_MODIFY; | |
4982 | if (stats) { | |
4983 | flags |= DPIF_FP_ZERO_STATS; | |
4984 | } | |
4985 | ||
6a7e895f | 4986 | if (path == SF_SLOW_PATH) { |
bbafd73b | 4987 | compose_slow_path(ofproto, &facet->flow, facet->xout.slow, |
6a7e895f BP |
4988 | slow_path_stub, sizeof slow_path_stub, |
4989 | &actions, &actions_len); | |
4990 | } | |
4991 | ||
04d08d54 | 4992 | ret = dpif_flow_put(subfacet->backer->dpif, flags, subfacet->key, |
9566abf9 | 4993 | subfacet->key_len, actions, actions_len, stats); |
b0f7b9b5 BP |
4994 | |
4995 | if (stats) { | |
4996 | subfacet_reset_dp_stats(subfacet, stats); | |
4997 | } | |
4998 | ||
6a7e895f BP |
4999 | if (!ret) { |
5000 | subfacet->path = path; | |
5001 | } | |
b0f7b9b5 BP |
5002 | return ret; |
5003 | } | |
5004 | ||
5005 | /* If 'subfacet' is installed in the datapath, uninstalls it. */ | |
5006 | static void | |
15baa734 | 5007 | subfacet_uninstall(struct subfacet *subfacet) |
b0f7b9b5 | 5008 | { |
6a7e895f | 5009 | if (subfacet->path != SF_NOT_INSTALLED) { |
15baa734 BP |
5010 | struct rule_dpif *rule = subfacet->facet->rule; |
5011 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
b0f7b9b5 | 5012 | struct dpif_flow_stats stats; |
b0f7b9b5 BP |
5013 | int error; |
5014 | ||
9566abf9 EJ |
5015 | error = dpif_flow_del(ofproto->backer->dpif, subfacet->key, |
5016 | subfacet->key_len, &stats); | |
b0f7b9b5 BP |
5017 | subfacet_reset_dp_stats(subfacet, &stats); |
5018 | if (!error) { | |
15baa734 | 5019 | subfacet_update_stats(subfacet, &stats); |
b0f7b9b5 | 5020 | } |
6a7e895f | 5021 | subfacet->path = SF_NOT_INSTALLED; |
b0f7b9b5 | 5022 | } else { |
cb22974d BP |
5023 | ovs_assert(subfacet->dp_packet_count == 0); |
5024 | ovs_assert(subfacet->dp_byte_count == 0); | |
b0f7b9b5 BP |
5025 | } |
5026 | } | |
5027 | ||
5028 | /* Resets 'subfacet''s datapath statistics counters. This should be called | |
5029 | * when 'subfacet''s statistics are cleared in the datapath. If 'stats' is | |
5030 | * non-null, it should contain the statistics returned by dpif when 'subfacet' | |
5031 | * was reset in the datapath. 'stats' will be modified to include only | |
5032 | * statistics new since 'subfacet' was last updated. */ | |
5033 | static void | |
5034 | subfacet_reset_dp_stats(struct subfacet *subfacet, | |
5035 | struct dpif_flow_stats *stats) | |
5036 | { | |
5037 | if (stats | |
5038 | && subfacet->dp_packet_count <= stats->n_packets | |
5039 | && subfacet->dp_byte_count <= stats->n_bytes) { | |
5040 | stats->n_packets -= subfacet->dp_packet_count; | |
5041 | stats->n_bytes -= subfacet->dp_byte_count; | |
5042 | } | |
5043 | ||
5044 | subfacet->dp_packet_count = 0; | |
5045 | subfacet->dp_byte_count = 0; | |
5046 | } | |
5047 | ||
b0f7b9b5 BP |
5048 | /* Folds the statistics from 'stats' into the counters in 'subfacet'. |
5049 | * | |
5050 | * Because of the meaning of a subfacet's counters, it only makes sense to do | |
5051 | * this if 'stats' are not tracked in the datapath, that is, if 'stats' | |
5052 | * represents a packet that was sent by hand or if it represents statistics | |
5053 | * that have been cleared out of the datapath. */ | |
5054 | static void | |
15baa734 | 5055 | subfacet_update_stats(struct subfacet *subfacet, |
b0f7b9b5 BP |
5056 | const struct dpif_flow_stats *stats) |
5057 | { | |
5058 | if (stats->n_packets || stats->used > subfacet->used) { | |
5059 | struct facet *facet = subfacet->facet; | |
5060 | ||
9dfb1f78 EJ |
5061 | subfacet->used = MAX(subfacet->used, stats->used); |
5062 | facet->used = MAX(facet->used, stats->used); | |
b0f7b9b5 BP |
5063 | facet->packet_count += stats->n_packets; |
5064 | facet->byte_count += stats->n_bytes; | |
0e553d9c | 5065 | facet->tcp_flags |= stats->tcp_flags; |
b0f7b9b5 BP |
5066 | } |
5067 | } | |
5068 | \f | |
abe529af BP |
5069 | /* Rules. */ |
5070 | ||
bcd2633a JP |
5071 | /* Lookup 'flow' in 'ofproto''s classifier. If 'wc' is non-null, sets |
5072 | * the fields that were relevant as part of the lookup. */ | |
abe529af | 5073 | static struct rule_dpif * |
bcd2633a JP |
5074 | rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow, |
5075 | struct flow_wildcards *wc) | |
c57b2226 | 5076 | { |
c57b2226 BP |
5077 | struct rule_dpif *rule; |
5078 | ||
9583bc14 | 5079 | rule = rule_dpif_lookup_in_table(ofproto, flow, wc, 0); |
c57b2226 BP |
5080 | if (rule) { |
5081 | return rule; | |
5082 | } | |
5083 | ||
c376f9a3 | 5084 | return rule_dpif_miss_rule(ofproto, flow); |
c57b2226 BP |
5085 | } |
5086 | ||
9583bc14 EJ |
5087 | struct rule_dpif * |
5088 | rule_dpif_lookup_in_table(struct ofproto_dpif *ofproto, | |
5089 | const struct flow *flow, struct flow_wildcards *wc, | |
5090 | uint8_t table_id) | |
abe529af | 5091 | { |
7257b535 BP |
5092 | struct cls_rule *cls_rule; |
5093 | struct classifier *cls; | |
7fd51d39 | 5094 | bool frag; |
7257b535 | 5095 | |
9cdaaebe BP |
5096 | if (table_id >= N_TABLES) { |
5097 | return NULL; | |
5098 | } | |
5099 | ||
d0918789 | 5100 | cls = &ofproto->up.tables[table_id].cls; |
7fd51d39 BP |
5101 | frag = (flow->nw_frag & FLOW_NW_FRAG_ANY) != 0; |
5102 | if (frag && ofproto->up.frag_handling == OFPC_FRAG_NORMAL) { | |
5103 | /* We must pretend that transport ports are unavailable. */ | |
7257b535 BP |
5104 | struct flow ofpc_normal_flow = *flow; |
5105 | ofpc_normal_flow.tp_src = htons(0); | |
5106 | ofpc_normal_flow.tp_dst = htons(0); | |
bcd2633a | 5107 | cls_rule = classifier_lookup(cls, &ofpc_normal_flow, wc); |
7fd51d39 BP |
5108 | } else if (frag && ofproto->up.frag_handling == OFPC_FRAG_DROP) { |
5109 | cls_rule = &ofproto->drop_frags_rule->up.cr; | |
bcd2633a JP |
5110 | if (wc) { |
5111 | flow_wildcards_init_exact(wc); | |
5112 | } | |
7257b535 | 5113 | } else { |
bcd2633a | 5114 | cls_rule = classifier_lookup(cls, flow, wc); |
7257b535 BP |
5115 | } |
5116 | return rule_dpif_cast(rule_from_cls_rule(cls_rule)); | |
abe529af BP |
5117 | } |
5118 | ||
9583bc14 | 5119 | struct rule_dpif * |
c376f9a3 IY |
5120 | rule_dpif_miss_rule(struct ofproto_dpif *ofproto, const struct flow *flow) |
5121 | { | |
5122 | struct ofport_dpif *port; | |
5123 | ||
5124 | port = get_ofp_port(ofproto, flow->in_port); | |
5125 | if (!port) { | |
5126 | VLOG_WARN_RL(&rl, "packet-in on unknown port %"PRIu16, flow->in_port); | |
5127 | return ofproto->miss_rule; | |
5128 | } | |
5129 | ||
5130 | if (port->up.pp.config & OFPUTIL_PC_NO_PACKET_IN) { | |
5131 | return ofproto->no_packet_in_rule; | |
5132 | } | |
5133 | return ofproto->miss_rule; | |
5134 | } | |
5135 | ||
7ee20df1 BP |
5136 | static void |
5137 | complete_operation(struct rule_dpif *rule) | |
5138 | { | |
5139 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
5140 | ||
54a9cbc9 | 5141 | rule_invalidate(rule); |
7ee20df1 BP |
5142 | if (clogged) { |
5143 | struct dpif_completion *c = xmalloc(sizeof *c); | |
5144 | c->op = rule->up.pending; | |
5145 | list_push_back(&ofproto->completions, &c->list_node); | |
5146 | } else { | |
5147 | ofoperation_complete(rule->up.pending, 0); | |
5148 | } | |
5149 | } | |
5150 | ||
abe529af BP |
5151 | static struct rule * |
5152 | rule_alloc(void) | |
5153 | { | |
5154 | struct rule_dpif *rule = xmalloc(sizeof *rule); | |
5155 | return &rule->up; | |
5156 | } | |
5157 | ||
5158 | static void | |
5159 | rule_dealloc(struct rule *rule_) | |
5160 | { | |
5161 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
5162 | free(rule); | |
5163 | } | |
5164 | ||
90bf1e07 | 5165 | static enum ofperr |
abe529af BP |
5166 | rule_construct(struct rule *rule_) |
5167 | { | |
5168 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
5169 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
7ee20df1 | 5170 | struct rule_dpif *victim; |
54a9cbc9 | 5171 | uint8_t table_id; |
abe529af | 5172 | |
abe529af BP |
5173 | rule->packet_count = 0; |
5174 | rule->byte_count = 0; | |
abe529af | 5175 | |
7ee20df1 BP |
5176 | victim = rule_dpif_cast(ofoperation_get_victim(rule->up.pending)); |
5177 | if (victim && !list_is_empty(&victim->facets)) { | |
5178 | struct facet *facet; | |
5179 | ||
5180 | rule->facets = victim->facets; | |
5181 | list_moved(&rule->facets); | |
5182 | LIST_FOR_EACH (facet, list_node, &rule->facets) { | |
bbb5d219 EJ |
5183 | /* XXX: We're only clearing our local counters here. It's possible |
5184 | * that quite a few packets are unaccounted for in the datapath | |
5185 | * statistics. These will be accounted to the new rule instead of | |
5186 | * cleared as required. This could be fixed by clearing out the | |
5187 | * datapath statistics for this facet, but currently it doesn't | |
5188 | * seem worth it. */ | |
5189 | facet_reset_counters(facet); | |
7ee20df1 BP |
5190 | facet->rule = rule; |
5191 | } | |
5192 | } else { | |
5193 | /* Must avoid list_moved() in this case. */ | |
5194 | list_init(&rule->facets); | |
5195 | } | |
abe529af | 5196 | |
54a9cbc9 | 5197 | table_id = rule->up.table_id; |
5cb7a798 BP |
5198 | if (victim) { |
5199 | rule->tag = victim->tag; | |
5200 | } else if (table_id == 0) { | |
5201 | rule->tag = 0; | |
5202 | } else { | |
5203 | struct flow flow; | |
5204 | ||
5205 | miniflow_expand(&rule->up.cr.match.flow, &flow); | |
5206 | rule->tag = rule_calculate_tag(&flow, &rule->up.cr.match.mask, | |
5207 | ofproto->tables[table_id].basis); | |
5208 | } | |
54a9cbc9 | 5209 | |
7ee20df1 | 5210 | complete_operation(rule); |
abe529af BP |
5211 | return 0; |
5212 | } | |
5213 | ||
5214 | static void | |
5215 | rule_destruct(struct rule *rule_) | |
5216 | { | |
5217 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
abe529af BP |
5218 | struct facet *facet, *next_facet; |
5219 | ||
abe529af | 5220 | LIST_FOR_EACH_SAFE (facet, next_facet, list_node, &rule->facets) { |
15baa734 | 5221 | facet_revalidate(facet); |
abe529af | 5222 | } |
7ee20df1 BP |
5223 | |
5224 | complete_operation(rule); | |
abe529af BP |
5225 | } |
5226 | ||
5227 | static void | |
5228 | rule_get_stats(struct rule *rule_, uint64_t *packets, uint64_t *bytes) | |
5229 | { | |
5230 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
abe529af | 5231 | |
4464589e EJ |
5232 | /* push_all_stats() can handle flow misses which, when using the learn |
5233 | * action, can cause rules to be added and deleted. This can corrupt our | |
5234 | * caller's datastructures which assume that rule_get_stats() doesn't have | |
5235 | * an impact on the flow table. To be safe, we disable miss handling. */ | |
5236 | push_all_stats__(false); | |
bf1e8ff9 | 5237 | |
abe529af BP |
5238 | /* Start from historical data for 'rule' itself that are no longer tracked |
5239 | * in facets. This counts, for example, facets that have expired. */ | |
5240 | *packets = rule->packet_count; | |
5241 | *bytes = rule->byte_count; | |
abe529af BP |
5242 | } |
5243 | ||
0a740f48 EJ |
5244 | static void |
5245 | rule_dpif_execute(struct rule_dpif *rule, const struct flow *flow, | |
5246 | struct ofpbuf *packet) | |
abe529af | 5247 | { |
abe529af | 5248 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); |
112bc5f4 | 5249 | struct dpif_flow_stats stats; |
bbafd73b EJ |
5250 | struct xlate_out xout; |
5251 | struct xlate_in xin; | |
abe529af | 5252 | |
a7752d4a | 5253 | dpif_flow_stats_extract(flow, packet, time_msec(), &stats); |
112bc5f4 BP |
5254 | rule_credit_stats(rule, &stats); |
5255 | ||
47b0deae | 5256 | xlate_in_init(&xin, ofproto, flow, rule, stats.tcp_flags, packet); |
bbafd73b EJ |
5257 | xin.resubmit_stats = &stats; |
5258 | xlate_actions(&xin, &xout); | |
112bc5f4 | 5259 | |
bbafd73b EJ |
5260 | execute_odp_actions(ofproto, flow, xout.odp_actions.data, |
5261 | xout.odp_actions.size, packet); | |
112bc5f4 | 5262 | |
bbafd73b | 5263 | xlate_out_uninit(&xout); |
0a740f48 | 5264 | } |
5bf0e941 | 5265 | |
0a740f48 EJ |
5266 | static enum ofperr |
5267 | rule_execute(struct rule *rule, const struct flow *flow, | |
5268 | struct ofpbuf *packet) | |
5269 | { | |
5270 | rule_dpif_execute(rule_dpif_cast(rule), flow, packet); | |
5271 | ofpbuf_delete(packet); | |
5bf0e941 | 5272 | return 0; |
abe529af BP |
5273 | } |
5274 | ||
7ee20df1 BP |
5275 | static void |
5276 | rule_modify_actions(struct rule *rule_) | |
abe529af BP |
5277 | { |
5278 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
7ee20df1 BP |
5279 | |
5280 | complete_operation(rule); | |
abe529af BP |
5281 | } |
5282 | \f | |
97d6520b | 5283 | /* Sends 'packet' out 'ofport'. |
52a90c29 | 5284 | * May modify 'packet'. |
abe529af BP |
5285 | * Returns 0 if successful, otherwise a positive errno value. */ |
5286 | static int | |
52a90c29 | 5287 | send_packet(const struct ofport_dpif *ofport, struct ofpbuf *packet) |
abe529af | 5288 | { |
79e15b78 | 5289 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); |
b9ad7294 | 5290 | uint64_t odp_actions_stub[1024 / 8]; |
80e5eed9 | 5291 | struct ofpbuf key, odp_actions; |
0f49659a | 5292 | struct dpif_flow_stats stats; |
80e5eed9 | 5293 | struct odputil_keybuf keybuf; |
0f49659a | 5294 | struct ofpact_output output; |
bbafd73b EJ |
5295 | struct xlate_out xout; |
5296 | struct xlate_in xin; | |
80e5eed9 | 5297 | struct flow flow; |
abe529af BP |
5298 | int error; |
5299 | ||
b9ad7294 | 5300 | ofpbuf_use_stub(&odp_actions, odp_actions_stub, sizeof odp_actions_stub); |
0f49659a | 5301 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); |
b9ad7294 | 5302 | |
0f49659a EJ |
5303 | /* Use OFPP_NONE as the in_port to avoid special packet processing. */ |
5304 | flow_extract(packet, 0, 0, NULL, OFPP_NONE, &flow); | |
5305 | odp_flow_key_from_flow(&key, &flow, ofp_port_to_odp_port(ofproto, | |
5306 | OFPP_LOCAL)); | |
5307 | dpif_flow_stats_extract(&flow, packet, time_msec(), &stats); | |
b9ad7294 | 5308 | |
0f49659a EJ |
5309 | ofpact_init(&output.ofpact, OFPACT_OUTPUT, sizeof output); |
5310 | output.port = ofport->up.ofp_port; | |
5311 | output.max_len = 0; | |
b9ad7294 | 5312 | |
47b0deae | 5313 | xlate_in_init(&xin, ofproto, &flow, NULL, 0, packet); |
bbafd73b EJ |
5314 | xin.ofpacts_len = sizeof output; |
5315 | xin.ofpacts = &output.ofpact; | |
5316 | xin.resubmit_stats = &stats; | |
5317 | xlate_actions(&xin, &xout); | |
6ff686f2 | 5318 | |
acf60855 | 5319 | error = dpif_execute(ofproto->backer->dpif, |
80e5eed9 | 5320 | key.data, key.size, |
bbafd73b | 5321 | xout.odp_actions.data, xout.odp_actions.size, |
abe529af | 5322 | packet); |
bbafd73b | 5323 | xlate_out_uninit(&xout); |
abe529af BP |
5324 | |
5325 | if (error) { | |
0f49659a EJ |
5326 | VLOG_WARN_RL(&rl, "%s: failed to send packet on port %s (%s)", |
5327 | ofproto->up.name, netdev_get_name(ofport->up.netdev), | |
5328 | strerror(error)); | |
abe529af | 5329 | } |
79e15b78 EJ |
5330 | |
5331 | ofproto->stats.tx_packets++; | |
5332 | ofproto->stats.tx_bytes += packet->size; | |
abe529af BP |
5333 | return error; |
5334 | } | |
abe529af | 5335 | |
6a7e895f BP |
5336 | /* Composes an ODP action for a "slow path" action for 'flow' within 'ofproto'. |
5337 | * The action will state 'slow' as the reason that the action is in the slow | |
5338 | * path. (This is purely informational: it allows a human viewing "ovs-dpctl | |
5339 | * dump-flows" output to see why a flow is in the slow path.) | |
5340 | * | |
5341 | * The 'stub_size' bytes in 'stub' will be used to store the action. | |
5342 | * 'stub_size' must be large enough for the action. | |
5343 | * | |
5344 | * The action and its size will be stored in '*actionsp' and '*actions_lenp', | |
5345 | * respectively. */ | |
5346 | static void | |
5347 | compose_slow_path(const struct ofproto_dpif *ofproto, const struct flow *flow, | |
5348 | enum slow_path_reason slow, | |
5349 | uint64_t *stub, size_t stub_size, | |
5350 | const struct nlattr **actionsp, size_t *actions_lenp) | |
5351 | { | |
5352 | union user_action_cookie cookie; | |
5353 | struct ofpbuf buf; | |
5354 | ||
5355 | cookie.type = USER_ACTION_COOKIE_SLOW_PATH; | |
5356 | cookie.slow_path.unused = 0; | |
5357 | cookie.slow_path.reason = slow; | |
5358 | ||
5359 | ofpbuf_use_stack(&buf, stub, stub_size); | |
ccc09689 | 5360 | if (slow & (SLOW_CFM | SLOW_BFD | SLOW_LACP | SLOW_STP)) { |
9032f11e | 5361 | uint32_t pid = dpif_port_get_pid(ofproto->backer->dpif, UINT32_MAX); |
29089a54 | 5362 | odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, &buf); |
625b0720 | 5363 | } else { |
29089a54 RL |
5364 | put_userspace_action(ofproto, &buf, flow, &cookie, |
5365 | sizeof cookie.slow_path); | |
625b0720 | 5366 | } |
6a7e895f BP |
5367 | *actionsp = buf.data; |
5368 | *actions_lenp = buf.size; | |
5369 | } | |
5370 | ||
9583bc14 | 5371 | size_t |
98403001 BP |
5372 | put_userspace_action(const struct ofproto_dpif *ofproto, |
5373 | struct ofpbuf *odp_actions, | |
5374 | const struct flow *flow, | |
29089a54 RL |
5375 | const union user_action_cookie *cookie, |
5376 | const size_t cookie_size) | |
98403001 | 5377 | { |
98403001 BP |
5378 | uint32_t pid; |
5379 | ||
acf60855 | 5380 | pid = dpif_port_get_pid(ofproto->backer->dpif, |
e1b1d06a | 5381 | ofp_port_to_odp_port(ofproto, flow->in_port)); |
98403001 | 5382 | |
29089a54 RL |
5383 | return odp_put_userspace_action(pid, cookie, cookie_size, odp_actions); |
5384 | } | |
5385 | ||
9583bc14 EJ |
5386 | |
5387 | static void | |
5388 | update_mirror_stats(struct ofproto_dpif *ofproto, mirror_mask_t mirrors, | |
5389 | uint64_t packets, uint64_t bytes) | |
29089a54 | 5390 | { |
9583bc14 EJ |
5391 | if (!mirrors) { |
5392 | return; | |
5393 | } | |
29089a54 | 5394 | |
9583bc14 EJ |
5395 | for (; mirrors; mirrors = zero_rightmost_1bit(mirrors)) { |
5396 | struct ofmirror *m; | |
5397 | ||
5398 | m = ofproto->mirrors[mirror_mask_ffs(mirrors) - 1]; | |
5399 | ||
5400 | if (!m) { | |
5401 | /* In normal circumstances 'm' will not be NULL. However, | |
5402 | * if mirrors are reconfigured, we can temporarily get out | |
5403 | * of sync in facet_revalidate(). We could "correct" the | |
5404 | * mirror list before reaching here, but doing that would | |
5405 | * not properly account the traffic stats we've currently | |
5406 | * accumulated for previous mirror configuration. */ | |
5407 | continue; | |
5408 | } | |
29089a54 | 5409 | |
9583bc14 EJ |
5410 | m->packet_count += packets; |
5411 | m->byte_count += bytes; | |
5412 | } | |
5413 | } | |
29089a54 | 5414 | |
9583bc14 EJ |
5415 | \f |
5416 | /* Optimized flow revalidation. | |
5417 | * | |
5418 | * It's a difficult problem, in general, to tell which facets need to have | |
5419 | * their actions recalculated whenever the OpenFlow flow table changes. We | |
5420 | * don't try to solve that general problem: for most kinds of OpenFlow flow | |
5421 | * table changes, we recalculate the actions for every facet. This is | |
5422 | * relatively expensive, but it's good enough if the OpenFlow flow table | |
5423 | * doesn't change very often. | |
5424 | * | |
5425 | * However, we can expect one particular kind of OpenFlow flow table change to | |
5426 | * happen frequently: changes caused by MAC learning. To avoid wasting a lot | |
5427 | * of CPU on revalidating every facet whenever MAC learning modifies the flow | |
5428 | * table, we add a special case that applies to flow tables in which every rule | |
5429 | * has the same form (that is, the same wildcards), except that the table is | |
5430 | * also allowed to have a single "catch-all" flow that matches all packets. We | |
5431 | * optimize this case by tagging all of the facets that resubmit into the table | |
5432 | * and invalidating the same tag whenever a flow changes in that table. The | |
5433 | * end result is that we revalidate just the facets that need it (and sometimes | |
5434 | * a few more, but not all of the facets or even all of the facets that | |
5435 | * resubmit to the table modified by MAC learning). */ | |
29089a54 | 5436 | |
9583bc14 EJ |
5437 | /* Calculates the tag to use for 'flow' and mask 'mask' when it is inserted |
5438 | * into an OpenFlow table with the given 'basis'. */ | |
5439 | tag_type | |
5440 | rule_calculate_tag(const struct flow *flow, const struct minimask *mask, | |
5441 | uint32_t secret) | |
5442 | { | |
5443 | if (minimask_is_catchall(mask)) { | |
5444 | return 0; | |
5445 | } else { | |
5446 | uint32_t hash = flow_hash_in_minimask(flow, mask, secret); | |
5447 | return tag_create_deterministic(hash); | |
5448 | } | |
98403001 BP |
5449 | } |
5450 | ||
9583bc14 EJ |
5451 | /* Following a change to OpenFlow table 'table_id' in 'ofproto', update the |
5452 | * taggability of that table. | |
5453 | * | |
5454 | * This function must be called after *each* change to a flow table. If you | |
5455 | * skip calling it on some changes then the pointer comparisons at the end can | |
5456 | * be invalid if you get unlucky. For example, if a flow removal causes a | |
5457 | * cls_table to be destroyed and then a flow insertion causes a cls_table with | |
5458 | * different wildcards to be created with the same address, then this function | |
5459 | * will incorrectly skip revalidation. */ | |
36fc5f18 | 5460 | static void |
9583bc14 | 5461 | table_update_taggable(struct ofproto_dpif *ofproto, uint8_t table_id) |
36fc5f18 | 5462 | { |
9583bc14 EJ |
5463 | struct table_dpif *table = &ofproto->tables[table_id]; |
5464 | const struct oftable *oftable = &ofproto->up.tables[table_id]; | |
5465 | struct cls_table *catchall, *other; | |
5466 | struct cls_table *t; | |
36fc5f18 | 5467 | |
9583bc14 | 5468 | catchall = other = NULL; |
36fc5f18 | 5469 | |
9583bc14 | 5470 | switch (hmap_count(&oftable->cls.tables)) { |
36fc5f18 | 5471 | case 0: |
9583bc14 EJ |
5472 | /* We could tag this OpenFlow table but it would make the logic a |
5473 | * little harder and it's a corner case that doesn't seem worth it | |
5474 | * yet. */ | |
36fc5f18 BP |
5475 | break; |
5476 | ||
5477 | case 1: | |
9583bc14 EJ |
5478 | case 2: |
5479 | HMAP_FOR_EACH (t, hmap_node, &oftable->cls.tables) { | |
5480 | if (cls_table_is_catchall(t)) { | |
5481 | catchall = t; | |
5482 | } else if (!other) { | |
5483 | other = t; | |
5484 | } else { | |
5485 | /* Indicate that we can't tag this by setting both tables to | |
5486 | * NULL. (We know that 'catchall' is already NULL.) */ | |
5487 | other = NULL; | |
5488 | } | |
36fc5f18 | 5489 | } |
9583bc14 EJ |
5490 | break; |
5491 | ||
36fc5f18 | 5492 | default: |
9583bc14 | 5493 | /* Can't tag this table. */ |
36fc5f18 BP |
5494 | break; |
5495 | } | |
6ff686f2 | 5496 | |
9583bc14 EJ |
5497 | if (table->catchall_table != catchall || table->other_table != other) { |
5498 | table->catchall_table = catchall; | |
5499 | table->other_table = other; | |
5500 | ofproto->backer->need_revalidate = REV_FLOW_TABLE; | |
6ff686f2 | 5501 | } |
29089a54 RL |
5502 | } |
5503 | ||
9583bc14 EJ |
5504 | /* Given 'rule' that has changed in some way (either it is a rule being |
5505 | * inserted, a rule being deleted, or a rule whose actions are being | |
5506 | * modified), marks facets for revalidation to ensure that packets will be | |
5507 | * forwarded correctly according to the new state of the flow table. | |
5508 | * | |
5509 | * This function must be called after *each* change to a flow table. See | |
5510 | * the comment on table_update_taggable() for more information. */ | |
29089a54 | 5511 | static void |
9583bc14 | 5512 | rule_invalidate(const struct rule_dpif *rule) |
29089a54 | 5513 | { |
9583bc14 | 5514 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); |
29089a54 | 5515 | |
9583bc14 | 5516 | table_update_taggable(ofproto, rule->up.table_id); |
29089a54 | 5517 | |
9583bc14 EJ |
5518 | if (!ofproto->backer->need_revalidate) { |
5519 | struct table_dpif *table = &ofproto->tables[rule->up.table_id]; | |
29089a54 | 5520 | |
9583bc14 EJ |
5521 | if (table->other_table && rule->tag) { |
5522 | tag_set_add(&ofproto->backer->revalidate_set, rule->tag); | |
5523 | } else { | |
5524 | ofproto->backer->need_revalidate = REV_FLOW_TABLE; | |
5525 | } | |
29089a54 | 5526 | } |
6ff686f2 | 5527 | } |
9583bc14 EJ |
5528 | \f |
5529 | static bool | |
5530 | set_frag_handling(struct ofproto *ofproto_, | |
5531 | enum ofp_config_flags frag_handling) | |
abe529af BP |
5532 | { |
5533 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
7257b535 | 5534 | if (frag_handling != OFPC_FRAG_REASM) { |
2cc3c58e | 5535 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
7257b535 BP |
5536 | return true; |
5537 | } else { | |
5538 | return false; | |
5539 | } | |
abe529af BP |
5540 | } |
5541 | ||
90bf1e07 | 5542 | static enum ofperr |
abe529af BP |
5543 | packet_out(struct ofproto *ofproto_, struct ofpbuf *packet, |
5544 | const struct flow *flow, | |
f25d0cf3 | 5545 | const struct ofpact *ofpacts, size_t ofpacts_len) |
abe529af BP |
5546 | { |
5547 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
548de4dd BP |
5548 | struct odputil_keybuf keybuf; |
5549 | struct dpif_flow_stats stats; | |
bbafd73b EJ |
5550 | struct xlate_out xout; |
5551 | struct xlate_in xin; | |
548de4dd | 5552 | struct ofpbuf key; |
112bc5f4 | 5553 | |
80e5eed9 | 5554 | |
548de4dd | 5555 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); |
e1b1d06a JP |
5556 | odp_flow_key_from_flow(&key, flow, |
5557 | ofp_port_to_odp_port(ofproto, flow->in_port)); | |
050ac423 | 5558 | |
548de4dd | 5559 | dpif_flow_stats_extract(flow, packet, time_msec(), &stats); |
abe529af | 5560 | |
47b0deae | 5561 | xlate_in_init(&xin, ofproto, flow, NULL, stats.tcp_flags, packet); |
bbafd73b EJ |
5562 | xin.resubmit_stats = &stats; |
5563 | xin.ofpacts_len = ofpacts_len; | |
5564 | xin.ofpacts = ofpacts; | |
2284188b | 5565 | |
bbafd73b | 5566 | xlate_actions(&xin, &xout); |
acf60855 | 5567 | dpif_execute(ofproto->backer->dpif, key.data, key.size, |
bbafd73b EJ |
5568 | xout.odp_actions.data, xout.odp_actions.size, packet); |
5569 | xlate_out_uninit(&xout); | |
2284188b | 5570 | |
548de4dd | 5571 | return 0; |
abe529af | 5572 | } |
6fca1ffb BP |
5573 | \f |
5574 | /* NetFlow. */ | |
5575 | ||
5576 | static int | |
5577 | set_netflow(struct ofproto *ofproto_, | |
5578 | const struct netflow_options *netflow_options) | |
5579 | { | |
5580 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
5581 | ||
5582 | if (netflow_options) { | |
5583 | if (!ofproto->netflow) { | |
5584 | ofproto->netflow = netflow_create(); | |
5585 | } | |
5586 | return netflow_set_options(ofproto->netflow, netflow_options); | |
5587 | } else { | |
5588 | netflow_destroy(ofproto->netflow); | |
5589 | ofproto->netflow = NULL; | |
5590 | return 0; | |
5591 | } | |
5592 | } | |
abe529af BP |
5593 | |
5594 | static void | |
5595 | get_netflow_ids(const struct ofproto *ofproto_, | |
5596 | uint8_t *engine_type, uint8_t *engine_id) | |
5597 | { | |
5598 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
5599 | ||
acf60855 | 5600 | dpif_get_netflow_ids(ofproto->backer->dpif, engine_type, engine_id); |
abe529af | 5601 | } |
6fca1ffb BP |
5602 | |
5603 | static void | |
5604 | send_active_timeout(struct ofproto_dpif *ofproto, struct facet *facet) | |
5605 | { | |
5606 | if (!facet_is_controller_flow(facet) && | |
5607 | netflow_active_timeout_expired(ofproto->netflow, &facet->nf_flow)) { | |
b0f7b9b5 | 5608 | struct subfacet *subfacet; |
6fca1ffb BP |
5609 | struct ofexpired expired; |
5610 | ||
b0f7b9b5 | 5611 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { |
6a7e895f | 5612 | if (subfacet->path == SF_FAST_PATH) { |
b0f7b9b5 | 5613 | struct dpif_flow_stats stats; |
6fca1ffb | 5614 | |
bcd2633a JP |
5615 | subfacet_install(subfacet, &facet->xout.odp_actions, |
5616 | &stats); | |
15baa734 | 5617 | subfacet_update_stats(subfacet, &stats); |
b0f7b9b5 | 5618 | } |
6fca1ffb BP |
5619 | } |
5620 | ||
5621 | expired.flow = facet->flow; | |
5622 | expired.packet_count = facet->packet_count; | |
5623 | expired.byte_count = facet->byte_count; | |
5624 | expired.used = facet->used; | |
5625 | netflow_expire(ofproto->netflow, &facet->nf_flow, &expired); | |
5626 | } | |
5627 | } | |
5628 | ||
5629 | static void | |
5630 | send_netflow_active_timeouts(struct ofproto_dpif *ofproto) | |
5631 | { | |
bcd2633a | 5632 | struct cls_cursor cursor; |
6fca1ffb BP |
5633 | struct facet *facet; |
5634 | ||
bcd2633a JP |
5635 | cls_cursor_init(&cursor, &ofproto->facets, NULL); |
5636 | CLS_CURSOR_FOR_EACH (facet, cr, &cursor) { | |
6fca1ffb BP |
5637 | send_active_timeout(ofproto, facet); |
5638 | } | |
5639 | } | |
abe529af BP |
5640 | \f |
5641 | static struct ofproto_dpif * | |
5642 | ofproto_dpif_lookup(const char *name) | |
5643 | { | |
b44a10b7 BP |
5644 | struct ofproto_dpif *ofproto; |
5645 | ||
5646 | HMAP_FOR_EACH_WITH_HASH (ofproto, all_ofproto_dpifs_node, | |
5647 | hash_string(name, 0), &all_ofproto_dpifs) { | |
5648 | if (!strcmp(ofproto->up.name, name)) { | |
5649 | return ofproto; | |
5650 | } | |
5651 | } | |
5652 | return NULL; | |
abe529af BP |
5653 | } |
5654 | ||
f0a3aa2e | 5655 | static void |
96e466a3 | 5656 | ofproto_unixctl_fdb_flush(struct unixctl_conn *conn, int argc, |
0e15264f | 5657 | const char *argv[], void *aux OVS_UNUSED) |
f0a3aa2e | 5658 | { |
490df1ef | 5659 | struct ofproto_dpif *ofproto; |
f0a3aa2e | 5660 | |
96e466a3 EJ |
5661 | if (argc > 1) { |
5662 | ofproto = ofproto_dpif_lookup(argv[1]); | |
5663 | if (!ofproto) { | |
bde9f75d | 5664 | unixctl_command_reply_error(conn, "no such bridge"); |
96e466a3 EJ |
5665 | return; |
5666 | } | |
2cc3c58e | 5667 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); |
96e466a3 EJ |
5668 | } else { |
5669 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
2cc3c58e | 5670 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); |
96e466a3 | 5671 | } |
f0a3aa2e | 5672 | } |
f0a3aa2e | 5673 | |
bde9f75d | 5674 | unixctl_command_reply(conn, "table successfully flushed"); |
f0a3aa2e AA |
5675 | } |
5676 | ||
abe529af | 5677 | static void |
0e15264f BP |
5678 | ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED, |
5679 | const char *argv[], void *aux OVS_UNUSED) | |
abe529af BP |
5680 | { |
5681 | struct ds ds = DS_EMPTY_INITIALIZER; | |
5682 | const struct ofproto_dpif *ofproto; | |
5683 | const struct mac_entry *e; | |
5684 | ||
0e15264f | 5685 | ofproto = ofproto_dpif_lookup(argv[1]); |
abe529af | 5686 | if (!ofproto) { |
bde9f75d | 5687 | unixctl_command_reply_error(conn, "no such bridge"); |
abe529af BP |
5688 | return; |
5689 | } | |
5690 | ||
5691 | ds_put_cstr(&ds, " port VLAN MAC Age\n"); | |
5692 | LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) { | |
5693 | struct ofbundle *bundle = e->port.p; | |
5694 | ds_put_format(&ds, "%5d %4d "ETH_ADDR_FMT" %3d\n", | |
5695 | ofbundle_get_a_port(bundle)->odp_port, | |
e764773c BP |
5696 | e->vlan, ETH_ADDR_ARGS(e->mac), |
5697 | mac_entry_age(ofproto->ml, e)); | |
abe529af | 5698 | } |
bde9f75d | 5699 | unixctl_command_reply(conn, ds_cstr(&ds)); |
abe529af BP |
5700 | ds_destroy(&ds); |
5701 | } | |
5702 | ||
6a6455e5 | 5703 | struct trace_ctx { |
bbafd73b EJ |
5704 | struct xlate_out xout; |
5705 | struct xlate_in xin; | |
abe529af BP |
5706 | struct flow flow; |
5707 | struct ds *result; | |
5708 | }; | |
5709 | ||
5710 | static void | |
4d0acc70 | 5711 | trace_format_rule(struct ds *result, int level, const struct rule_dpif *rule) |
abe529af BP |
5712 | { |
5713 | ds_put_char_multiple(result, '\t', level); | |
5714 | if (!rule) { | |
5715 | ds_put_cstr(result, "No match\n"); | |
5716 | return; | |
5717 | } | |
5718 | ||
29901626 | 5719 | ds_put_format(result, "Rule: table=%"PRIu8" cookie=%#"PRIx64" ", |
4d0acc70 | 5720 | rule ? rule->up.table_id : 0, ntohll(rule->up.flow_cookie)); |
79feb7df | 5721 | cls_rule_format(&rule->up.cr, result); |
abe529af BP |
5722 | ds_put_char(result, '\n'); |
5723 | ||
5724 | ds_put_char_multiple(result, '\t', level); | |
5725 | ds_put_cstr(result, "OpenFlow "); | |
f25d0cf3 | 5726 | ofpacts_format(rule->up.ofpacts, rule->up.ofpacts_len, result); |
abe529af BP |
5727 | ds_put_char(result, '\n'); |
5728 | } | |
5729 | ||
5730 | static void | |
5731 | trace_format_flow(struct ds *result, int level, const char *title, | |
bbafd73b | 5732 | struct trace_ctx *trace) |
abe529af BP |
5733 | { |
5734 | ds_put_char_multiple(result, '\t', level); | |
5735 | ds_put_format(result, "%s: ", title); | |
bbafd73b | 5736 | if (flow_equal(&trace->xin.flow, &trace->flow)) { |
abe529af BP |
5737 | ds_put_cstr(result, "unchanged"); |
5738 | } else { | |
bbafd73b EJ |
5739 | flow_format(result, &trace->xin.flow); |
5740 | trace->flow = trace->xin.flow; | |
abe529af BP |
5741 | } |
5742 | ds_put_char(result, '\n'); | |
5743 | } | |
5744 | ||
eb9e1c26 EJ |
5745 | static void |
5746 | trace_format_regs(struct ds *result, int level, const char *title, | |
6a6455e5 | 5747 | struct trace_ctx *trace) |
eb9e1c26 EJ |
5748 | { |
5749 | size_t i; | |
5750 | ||
5751 | ds_put_char_multiple(result, '\t', level); | |
5752 | ds_put_format(result, "%s:", title); | |
5753 | for (i = 0; i < FLOW_N_REGS; i++) { | |
5754 | ds_put_format(result, " reg%zu=0x%"PRIx32, i, trace->flow.regs[i]); | |
5755 | } | |
5756 | ds_put_char(result, '\n'); | |
5757 | } | |
5758 | ||
1ed8d352 EJ |
5759 | static void |
5760 | trace_format_odp(struct ds *result, int level, const char *title, | |
6a6455e5 | 5761 | struct trace_ctx *trace) |
1ed8d352 | 5762 | { |
bbafd73b | 5763 | struct ofpbuf *odp_actions = &trace->xout.odp_actions; |
1ed8d352 EJ |
5764 | |
5765 | ds_put_char_multiple(result, '\t', level); | |
5766 | ds_put_format(result, "%s: ", title); | |
5767 | format_odp_actions(result, odp_actions->data, odp_actions->size); | |
5768 | ds_put_char(result, '\n'); | |
5769 | } | |
5770 | ||
abe529af | 5771 | static void |
4d0acc70 | 5772 | trace_resubmit(struct xlate_in *xin, struct rule_dpif *rule, int recurse) |
abe529af | 5773 | { |
4d0acc70 | 5774 | struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin); |
abe529af BP |
5775 | struct ds *result = trace->result; |
5776 | ||
5777 | ds_put_char(result, '\n'); | |
4d0acc70 EJ |
5778 | trace_format_flow(result, recurse + 1, "Resubmitted flow", trace); |
5779 | trace_format_regs(result, recurse + 1, "Resubmitted regs", trace); | |
5780 | trace_format_odp(result, recurse + 1, "Resubmitted odp", trace); | |
5781 | trace_format_rule(result, recurse + 1, rule); | |
abe529af BP |
5782 | } |
5783 | ||
479df176 | 5784 | static void |
4d0acc70 | 5785 | trace_report(struct xlate_in *xin, const char *s, int recurse) |
479df176 | 5786 | { |
4d0acc70 | 5787 | struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin); |
479df176 BP |
5788 | struct ds *result = trace->result; |
5789 | ||
4d0acc70 | 5790 | ds_put_char_multiple(result, '\t', recurse); |
479df176 BP |
5791 | ds_put_cstr(result, s); |
5792 | ds_put_char(result, '\n'); | |
5793 | } | |
5794 | ||
abe529af | 5795 | static void |
0e15264f | 5796 | ofproto_unixctl_trace(struct unixctl_conn *conn, int argc, const char *argv[], |
abe529af BP |
5797 | void *aux OVS_UNUSED) |
5798 | { | |
50aa28fd | 5799 | const struct dpif_backer *backer; |
abe529af | 5800 | struct ofproto_dpif *ofproto; |
876b0e1c BP |
5801 | struct ofpbuf odp_key; |
5802 | struct ofpbuf *packet; | |
abe529af BP |
5803 | struct ds result; |
5804 | struct flow flow; | |
abe529af BP |
5805 | char *s; |
5806 | ||
876b0e1c | 5807 | packet = NULL; |
50aa28fd | 5808 | backer = NULL; |
abe529af | 5809 | ds_init(&result); |
50aa28fd | 5810 | ofpbuf_init(&odp_key, 0); |
abe529af | 5811 | |
50aa28fd AW |
5812 | /* Handle "-generate" or a hex string as the last argument. */ |
5813 | if (!strcmp(argv[argc - 1], "-generate")) { | |
5814 | packet = ofpbuf_new(0); | |
5815 | argc--; | |
5816 | } else { | |
5817 | const char *error = eth_from_hex(argv[argc - 1], &packet); | |
5818 | if (!error) { | |
5819 | argc--; | |
5820 | } else if (argc == 4) { | |
5821 | /* The 3-argument form must end in "-generate' or a hex string. */ | |
5822 | unixctl_command_reply_error(conn, error); | |
5823 | goto exit; | |
5824 | } | |
e84173dc | 5825 | } |
876b0e1c | 5826 | |
50aa28fd AW |
5827 | /* Parse the flow and determine whether a datapath or |
5828 | * bridge is specified. If function odp_flow_key_from_string() | |
5829 | * returns 0, the flow is a odp_flow. If function | |
5830 | * parse_ofp_exact_flow() returns 0, the flow is a br_flow. */ | |
5831 | if (!odp_flow_key_from_string(argv[argc - 1], NULL, &odp_key)) { | |
5832 | /* If the odp_flow is the second argument, | |
5833 | * the datapath name is the first argument. */ | |
5834 | if (argc == 3) { | |
5835 | const char *dp_type; | |
5836 | if (!strncmp(argv[1], "ovs-", 4)) { | |
5837 | dp_type = argv[1] + 4; | |
5838 | } else { | |
5839 | dp_type = argv[1]; | |
31a19d69 | 5840 | } |
50aa28fd AW |
5841 | backer = shash_find_data(&all_dpif_backers, dp_type); |
5842 | if (!backer) { | |
5843 | unixctl_command_reply_error(conn, "Cannot find datapath " | |
5844 | "of this name"); | |
31a19d69 BP |
5845 | goto exit; |
5846 | } | |
5847 | } else { | |
50aa28fd AW |
5848 | /* No datapath name specified, so there should be only one |
5849 | * datapath. */ | |
5850 | struct shash_node *node; | |
5851 | if (shash_count(&all_dpif_backers) != 1) { | |
5852 | unixctl_command_reply_error(conn, "Must specify datapath " | |
5853 | "name, there is more than one type of datapath"); | |
31a19d69 BP |
5854 | goto exit; |
5855 | } | |
50aa28fd AW |
5856 | node = shash_first(&all_dpif_backers); |
5857 | backer = node->data; | |
876b0e1c | 5858 | } |
8b3b8dd1 | 5859 | |
50aa28fd AW |
5860 | /* Extract the ofproto_dpif object from the ofproto_receive() |
5861 | * function. */ | |
5862 | if (ofproto_receive(backer, NULL, odp_key.data, | |
47b0deae | 5863 | odp_key.size, &flow, NULL, &ofproto, NULL)) { |
50aa28fd AW |
5864 | unixctl_command_reply_error(conn, "Invalid datapath flow"); |
5865 | goto exit; | |
8b3b8dd1 | 5866 | } |
50aa28fd AW |
5867 | ds_put_format(&result, "Bridge: %s\n", ofproto->up.name); |
5868 | } else if (!parse_ofp_exact_flow(&flow, argv[argc - 1])) { | |
5869 | if (argc != 3) { | |
5870 | unixctl_command_reply_error(conn, "Must specify bridge name"); | |
876b0e1c BP |
5871 | goto exit; |
5872 | } | |
5873 | ||
50aa28fd AW |
5874 | ofproto = ofproto_dpif_lookup(argv[1]); |
5875 | if (!ofproto) { | |
5876 | unixctl_command_reply_error(conn, "Unknown bridge name"); | |
5877 | goto exit; | |
5878 | } | |
876b0e1c | 5879 | } else { |
50aa28fd | 5880 | unixctl_command_reply_error(conn, "Bad flow syntax"); |
abe529af BP |
5881 | goto exit; |
5882 | } | |
5883 | ||
50aa28fd AW |
5884 | /* Generate a packet, if requested. */ |
5885 | if (packet) { | |
5886 | if (!packet->size) { | |
5887 | flow_compose(packet, &flow); | |
5888 | } else { | |
5889 | ds_put_cstr(&result, "Packet: "); | |
5890 | s = ofp_packet_to_string(packet->data, packet->size); | |
5891 | ds_put_cstr(&result, s); | |
5892 | free(s); | |
5893 | ||
5894 | /* Use the metadata from the flow and the packet argument | |
5895 | * to reconstruct the flow. */ | |
5896 | flow_extract(packet, flow.skb_priority, flow.skb_mark, NULL, | |
5897 | flow.in_port, &flow); | |
50aa28fd AW |
5898 | } |
5899 | } | |
5900 | ||
47b0deae | 5901 | ofproto_trace(ofproto, &flow, packet, &result); |
6a6455e5 EJ |
5902 | unixctl_command_reply(conn, ds_cstr(&result)); |
5903 | ||
5904 | exit: | |
5905 | ds_destroy(&result); | |
5906 | ofpbuf_delete(packet); | |
5907 | ofpbuf_uninit(&odp_key); | |
5908 | } | |
5909 | ||
9583bc14 | 5910 | void |
6a6455e5 | 5911 | ofproto_trace(struct ofproto_dpif *ofproto, const struct flow *flow, |
47b0deae | 5912 | const struct ofpbuf *packet, struct ds *ds) |
6a6455e5 EJ |
5913 | { |
5914 | struct rule_dpif *rule; | |
5915 | ||
5916 | ds_put_cstr(ds, "Flow: "); | |
5917 | flow_format(ds, flow); | |
5918 | ds_put_char(ds, '\n'); | |
abe529af | 5919 | |
bcd2633a | 5920 | rule = rule_dpif_lookup(ofproto, flow, NULL); |
c57b2226 | 5921 | |
4d0acc70 | 5922 | trace_format_rule(ds, 0, rule); |
c57b2226 BP |
5923 | if (rule == ofproto->miss_rule) { |
5924 | ds_put_cstr(ds, "\nNo match, flow generates \"packet in\"s.\n"); | |
5925 | } else if (rule == ofproto->no_packet_in_rule) { | |
5926 | ds_put_cstr(ds, "\nNo match, packets dropped because " | |
5927 | "OFPPC_NO_PACKET_IN is set on in_port.\n"); | |
7fd51d39 BP |
5928 | } else if (rule == ofproto->drop_frags_rule) { |
5929 | ds_put_cstr(ds, "\nPackets dropped because they are IP fragments " | |
5930 | "and the fragment handling mode is \"drop\".\n"); | |
c57b2226 BP |
5931 | } |
5932 | ||
abe529af | 5933 | if (rule) { |
050ac423 BP |
5934 | uint64_t odp_actions_stub[1024 / 8]; |
5935 | struct ofpbuf odp_actions; | |
6a6455e5 | 5936 | struct trace_ctx trace; |
bcd2633a | 5937 | struct match match; |
0e553d9c | 5938 | uint8_t tcp_flags; |
abe529af | 5939 | |
6a6455e5 EJ |
5940 | tcp_flags = packet ? packet_get_tcp_flags(packet, flow) : 0; |
5941 | trace.result = ds; | |
5942 | trace.flow = *flow; | |
050ac423 BP |
5943 | ofpbuf_use_stub(&odp_actions, |
5944 | odp_actions_stub, sizeof odp_actions_stub); | |
47b0deae | 5945 | xlate_in_init(&trace.xin, ofproto, flow, rule, tcp_flags, packet); |
bbafd73b EJ |
5946 | trace.xin.resubmit_hook = trace_resubmit; |
5947 | trace.xin.report_hook = trace_report; | |
bcd2633a | 5948 | |
bbafd73b | 5949 | xlate_actions(&trace.xin, &trace.xout); |
abe529af | 5950 | |
6a6455e5 EJ |
5951 | ds_put_char(ds, '\n'); |
5952 | trace_format_flow(ds, 0, "Final flow", &trace); | |
bcd2633a JP |
5953 | |
5954 | match_init(&match, flow, &trace.xout.wc); | |
5955 | ds_put_cstr(ds, "Relevant fields: "); | |
5956 | match_format(&match, ds, OFP_DEFAULT_PRIORITY); | |
5957 | ds_put_char(ds, '\n'); | |
5958 | ||
6a6455e5 | 5959 | ds_put_cstr(ds, "Datapath actions: "); |
bbafd73b EJ |
5960 | format_odp_actions(ds, trace.xout.odp_actions.data, |
5961 | trace.xout.odp_actions.size); | |
876b0e1c | 5962 | |
bbafd73b | 5963 | if (trace.xout.slow) { |
6a7e895f BP |
5964 | ds_put_cstr(ds, "\nThis flow is handled by the userspace " |
5965 | "slow path because it:"); | |
bbafd73b | 5966 | switch (trace.xout.slow) { |
98f0520f EJ |
5967 | case SLOW_CFM: |
5968 | ds_put_cstr(ds, "\n\t- Consists of CFM packets."); | |
5969 | break; | |
5970 | case SLOW_LACP: | |
5971 | ds_put_cstr(ds, "\n\t- Consists of LACP packets."); | |
5972 | break; | |
5973 | case SLOW_STP: | |
5974 | ds_put_cstr(ds, "\n\t- Consists of STP packets."); | |
5975 | break; | |
5976 | case SLOW_BFD: | |
5977 | ds_put_cstr(ds, "\n\t- Consists of BFD packets."); | |
5978 | break; | |
5979 | case SLOW_CONTROLLER: | |
5980 | ds_put_cstr(ds, "\n\t- Sends \"packet-in\" messages " | |
5981 | "to the OpenFlow controller."); | |
5982 | break; | |
5983 | case __SLOW_MAX: | |
5984 | NOT_REACHED(); | |
6a7e895f | 5985 | } |
876b0e1c | 5986 | } |
bbafd73b EJ |
5987 | |
5988 | xlate_out_uninit(&trace.xout); | |
abe529af | 5989 | } |
abe529af BP |
5990 | } |
5991 | ||
7ee20df1 | 5992 | static void |
0e15264f BP |
5993 | ofproto_dpif_clog(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED, |
5994 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7ee20df1 BP |
5995 | { |
5996 | clogged = true; | |
bde9f75d | 5997 | unixctl_command_reply(conn, NULL); |
7ee20df1 BP |
5998 | } |
5999 | ||
6000 | static void | |
0e15264f BP |
6001 | ofproto_dpif_unclog(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED, |
6002 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7ee20df1 BP |
6003 | { |
6004 | clogged = false; | |
bde9f75d | 6005 | unixctl_command_reply(conn, NULL); |
7ee20df1 BP |
6006 | } |
6007 | ||
6814e51f BP |
6008 | /* Runs a self-check of flow translations in 'ofproto'. Appends a message to |
6009 | * 'reply' describing the results. */ | |
6010 | static void | |
6011 | ofproto_dpif_self_check__(struct ofproto_dpif *ofproto, struct ds *reply) | |
6012 | { | |
bcd2633a | 6013 | struct cls_cursor cursor; |
6814e51f BP |
6014 | struct facet *facet; |
6015 | int errors; | |
6016 | ||
6017 | errors = 0; | |
bcd2633a JP |
6018 | cls_cursor_init(&cursor, &ofproto->facets, NULL); |
6019 | CLS_CURSOR_FOR_EACH (facet, cr, &cursor) { | |
6814e51f BP |
6020 | if (!facet_check_consistency(facet)) { |
6021 | errors++; | |
6022 | } | |
6023 | } | |
6024 | if (errors) { | |
2cc3c58e | 6025 | ofproto->backer->need_revalidate = REV_INCONSISTENCY; |
6814e51f BP |
6026 | } |
6027 | ||
6028 | if (errors) { | |
6029 | ds_put_format(reply, "%s: self-check failed (%d errors)\n", | |
6030 | ofproto->up.name, errors); | |
6031 | } else { | |
6032 | ds_put_format(reply, "%s: self-check passed\n", ofproto->up.name); | |
6033 | } | |
6034 | } | |
6035 | ||
6036 | static void | |
6037 | ofproto_dpif_self_check(struct unixctl_conn *conn, | |
6038 | int argc, const char *argv[], void *aux OVS_UNUSED) | |
6039 | { | |
6040 | struct ds reply = DS_EMPTY_INITIALIZER; | |
6041 | struct ofproto_dpif *ofproto; | |
6042 | ||
6043 | if (argc > 1) { | |
6044 | ofproto = ofproto_dpif_lookup(argv[1]); | |
6045 | if (!ofproto) { | |
bde9f75d EJ |
6046 | unixctl_command_reply_error(conn, "Unknown ofproto (use " |
6047 | "ofproto/list for help)"); | |
6814e51f BP |
6048 | return; |
6049 | } | |
6050 | ofproto_dpif_self_check__(ofproto, &reply); | |
6051 | } else { | |
6052 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
6053 | ofproto_dpif_self_check__(ofproto, &reply); | |
6054 | } | |
6055 | } | |
6056 | ||
bde9f75d | 6057 | unixctl_command_reply(conn, ds_cstr(&reply)); |
6814e51f BP |
6058 | ds_destroy(&reply); |
6059 | } | |
6060 | ||
27022416 JP |
6061 | /* Store the current ofprotos in 'ofproto_shash'. Returns a sorted list |
6062 | * of the 'ofproto_shash' nodes. It is the responsibility of the caller | |
6063 | * to destroy 'ofproto_shash' and free the returned value. */ | |
6064 | static const struct shash_node ** | |
6065 | get_ofprotos(struct shash *ofproto_shash) | |
6066 | { | |
6067 | const struct ofproto_dpif *ofproto; | |
6068 | ||
6069 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
6070 | char *name = xasprintf("%s@%s", ofproto->up.type, ofproto->up.name); | |
6071 | shash_add_nocopy(ofproto_shash, name, ofproto); | |
6072 | } | |
6073 | ||
6074 | return shash_sort(ofproto_shash); | |
6075 | } | |
6076 | ||
6077 | static void | |
6078 | ofproto_unixctl_dpif_dump_dps(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
6079 | const char *argv[] OVS_UNUSED, | |
6080 | void *aux OVS_UNUSED) | |
6081 | { | |
6082 | struct ds ds = DS_EMPTY_INITIALIZER; | |
6083 | struct shash ofproto_shash; | |
6084 | const struct shash_node **sorted_ofprotos; | |
6085 | int i; | |
6086 | ||
6087 | shash_init(&ofproto_shash); | |
6088 | sorted_ofprotos = get_ofprotos(&ofproto_shash); | |
6089 | for (i = 0; i < shash_count(&ofproto_shash); i++) { | |
6090 | const struct shash_node *node = sorted_ofprotos[i]; | |
6091 | ds_put_format(&ds, "%s\n", node->name); | |
6092 | } | |
6093 | ||
6094 | shash_destroy(&ofproto_shash); | |
6095 | free(sorted_ofprotos); | |
6096 | ||
6097 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
6098 | ds_destroy(&ds); | |
6099 | } | |
6100 | ||
6101 | static void | |
dc54ef36 EJ |
6102 | show_dp_rates(struct ds *ds, const char *heading, |
6103 | const struct avg_subfacet_rates *rates) | |
6104 | { | |
6105 | ds_put_format(ds, "%s add rate: %5.3f/min, del rate: %5.3f/min\n", | |
6106 | heading, rates->add_rate, rates->del_rate); | |
6107 | } | |
6108 | ||
6109 | static void | |
6110 | dpif_show_backer(const struct dpif_backer *backer, struct ds *ds) | |
27022416 | 6111 | { |
dc54ef36 EJ |
6112 | const struct shash_node **ofprotos; |
6113 | struct ofproto_dpif *ofproto; | |
6114 | struct shash ofproto_shash; | |
09672174 | 6115 | uint64_t n_hit, n_missed; |
dc54ef36 | 6116 | long long int minutes; |
09672174 | 6117 | size_t i; |
655ab909 | 6118 | |
04d08d54 | 6119 | n_hit = n_missed = 0; |
dc54ef36 EJ |
6120 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { |
6121 | if (ofproto->backer == backer) { | |
dc54ef36 EJ |
6122 | n_missed += ofproto->n_missed; |
6123 | n_hit += ofproto->n_hit; | |
6124 | } | |
6125 | } | |
655ab909 | 6126 | |
dc54ef36 EJ |
6127 | ds_put_format(ds, "%s: hit:%"PRIu64" missed:%"PRIu64"\n", |
6128 | dpif_name(backer->dpif), n_hit, n_missed); | |
6129 | ds_put_format(ds, "\tflows: cur: %zu, avg: %u, max: %u," | |
04d08d54 | 6130 | " life span: %lldms\n", hmap_count(&backer->subfacets), |
dc54ef36 EJ |
6131 | backer->avg_n_subfacet, backer->max_n_subfacet, |
6132 | backer->avg_subfacet_life); | |
6133 | ||
6134 | minutes = (time_msec() - backer->created) / (1000 * 60); | |
655ab909 | 6135 | if (minutes >= 60) { |
dc54ef36 | 6136 | show_dp_rates(ds, "\thourly avg:", &backer->hourly); |
655ab909 AZ |
6137 | } |
6138 | if (minutes >= 60 * 24) { | |
dc54ef36 | 6139 | show_dp_rates(ds, "\tdaily avg:", &backer->daily); |
655ab909 | 6140 | } |
dc54ef36 | 6141 | show_dp_rates(ds, "\toverall avg:", &backer->lifetime); |
27022416 | 6142 | |
dc54ef36 EJ |
6143 | shash_init(&ofproto_shash); |
6144 | ofprotos = get_ofprotos(&ofproto_shash); | |
6145 | for (i = 0; i < shash_count(&ofproto_shash); i++) { | |
6146 | struct ofproto_dpif *ofproto = ofprotos[i]->data; | |
6147 | const struct shash_node **ports; | |
6148 | size_t j; | |
0a740f48 | 6149 | |
dc54ef36 EJ |
6150 | if (ofproto->backer != backer) { |
6151 | continue; | |
0a740f48 | 6152 | } |
27022416 | 6153 | |
dc54ef36 EJ |
6154 | ds_put_format(ds, "\t%s: hit:%"PRIu64" missed:%"PRIu64"\n", |
6155 | ofproto->up.name, ofproto->n_hit, ofproto->n_missed); | |
6156 | ||
6157 | ports = shash_sort(&ofproto->up.port_by_name); | |
6158 | for (j = 0; j < shash_count(&ofproto->up.port_by_name); j++) { | |
6159 | const struct shash_node *node = ports[j]; | |
6160 | struct ofport *ofport = node->data; | |
6161 | struct smap config; | |
6162 | uint32_t odp_port; | |
27022416 | 6163 | |
dc54ef36 EJ |
6164 | ds_put_format(ds, "\t\t%s %u/", netdev_get_name(ofport->netdev), |
6165 | ofport->ofp_port); | |
27022416 | 6166 | |
dc54ef36 EJ |
6167 | odp_port = ofp_port_to_odp_port(ofproto, ofport->ofp_port); |
6168 | if (odp_port != OVSP_NONE) { | |
6169 | ds_put_format(ds, "%"PRIu32":", odp_port); | |
6170 | } else { | |
6171 | ds_put_cstr(ds, "none:"); | |
6172 | } | |
27022416 | 6173 | |
dc54ef36 | 6174 | ds_put_format(ds, " (%s", netdev_get_type(ofport->netdev)); |
27022416 | 6175 | |
dc54ef36 EJ |
6176 | smap_init(&config); |
6177 | if (!netdev_get_config(ofport->netdev, &config)) { | |
6178 | const struct smap_node **nodes; | |
6179 | size_t i; | |
27022416 | 6180 | |
dc54ef36 EJ |
6181 | nodes = smap_sort(&config); |
6182 | for (i = 0; i < smap_count(&config); i++) { | |
6183 | const struct smap_node *node = nodes[i]; | |
6184 | ds_put_format(ds, "%c %s=%s", i ? ',' : ':', | |
6185 | node->key, node->value); | |
6186 | } | |
6187 | free(nodes); | |
27022416 | 6188 | } |
dc54ef36 EJ |
6189 | smap_destroy(&config); |
6190 | ||
27022416 | 6191 | ds_put_char(ds, ')'); |
dc54ef36 | 6192 | ds_put_char(ds, '\n'); |
27022416 | 6193 | } |
dc54ef36 | 6194 | free(ports); |
27022416 | 6195 | } |
dc54ef36 EJ |
6196 | shash_destroy(&ofproto_shash); |
6197 | free(ofprotos); | |
27022416 JP |
6198 | } |
6199 | ||
6200 | static void | |
dc54ef36 EJ |
6201 | ofproto_unixctl_dpif_show(struct unixctl_conn *conn, int argc OVS_UNUSED, |
6202 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
27022416 JP |
6203 | { |
6204 | struct ds ds = DS_EMPTY_INITIALIZER; | |
dc54ef36 EJ |
6205 | const struct shash_node **backers; |
6206 | int i; | |
27022416 | 6207 | |
dc54ef36 EJ |
6208 | backers = shash_sort(&all_dpif_backers); |
6209 | for (i = 0; i < shash_count(&all_dpif_backers); i++) { | |
6210 | dpif_show_backer(backers[i]->data, &ds); | |
27022416 | 6211 | } |
dc54ef36 | 6212 | free(backers); |
27022416 JP |
6213 | |
6214 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
6215 | ds_destroy(&ds); | |
6216 | } | |
6217 | ||
bcd2633a JP |
6218 | /* Dump the megaflow (facet) cache. This is useful to check the |
6219 | * correctness of flow wildcarding, since the same mechanism is used for | |
6220 | * both xlate caching and kernel wildcarding. | |
6221 | * | |
6222 | * It's important to note that in the output the flow description uses | |
6223 | * OpenFlow (OFP) ports, but the actions use datapath (ODP) ports. | |
6224 | * | |
6225 | * This command is only needed for advanced debugging, so it's not | |
6226 | * documented in the man page. */ | |
6227 | static void | |
6228 | ofproto_unixctl_dpif_dump_megaflows(struct unixctl_conn *conn, | |
6229 | int argc OVS_UNUSED, const char *argv[], | |
6230 | void *aux OVS_UNUSED) | |
6231 | { | |
6232 | struct ds ds = DS_EMPTY_INITIALIZER; | |
6233 | const struct ofproto_dpif *ofproto; | |
6234 | long long int now = time_msec(); | |
6235 | struct cls_cursor cursor; | |
6236 | struct facet *facet; | |
6237 | ||
6238 | ofproto = ofproto_dpif_lookup(argv[1]); | |
6239 | if (!ofproto) { | |
6240 | unixctl_command_reply_error(conn, "no such bridge"); | |
6241 | return; | |
6242 | } | |
6243 | ||
6244 | cls_cursor_init(&cursor, &ofproto->facets, NULL); | |
6245 | CLS_CURSOR_FOR_EACH (facet, cr, &cursor) { | |
6246 | cls_rule_format(&facet->cr, &ds); | |
6247 | ds_put_cstr(&ds, ", "); | |
7ee9e841 | 6248 | ds_put_format(&ds, "n_subfacets:%zu, ", list_size(&facet->subfacets)); |
bcd2633a JP |
6249 | ds_put_format(&ds, "used:%.3fs, ", (now - facet->used) / 1000.0); |
6250 | ds_put_cstr(&ds, "Datapath actions: "); | |
8ecafa3e JP |
6251 | if (facet->xout.slow) { |
6252 | uint64_t slow_path_stub[128 / 8]; | |
6253 | const struct nlattr *actions; | |
6254 | size_t actions_len; | |
6255 | ||
6256 | compose_slow_path(ofproto, &facet->flow, facet->xout.slow, | |
6257 | slow_path_stub, sizeof slow_path_stub, | |
6258 | &actions, &actions_len); | |
6259 | format_odp_actions(&ds, actions, actions_len); | |
6260 | } else { | |
6261 | format_odp_actions(&ds, facet->xout.odp_actions.data, | |
6262 | facet->xout.odp_actions.size); | |
6263 | } | |
bcd2633a JP |
6264 | ds_put_cstr(&ds, "\n"); |
6265 | } | |
6266 | ||
6267 | ds_chomp(&ds, '\n'); | |
6268 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
6269 | ds_destroy(&ds); | |
6270 | } | |
6271 | ||
27022416 JP |
6272 | static void |
6273 | ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn, | |
6274 | int argc OVS_UNUSED, const char *argv[], | |
6275 | void *aux OVS_UNUSED) | |
6276 | { | |
6277 | struct ds ds = DS_EMPTY_INITIALIZER; | |
6278 | const struct ofproto_dpif *ofproto; | |
6279 | struct subfacet *subfacet; | |
6280 | ||
6281 | ofproto = ofproto_dpif_lookup(argv[1]); | |
6282 | if (!ofproto) { | |
6283 | unixctl_command_reply_error(conn, "no such bridge"); | |
6284 | return; | |
6285 | } | |
6286 | ||
af37354d EJ |
6287 | update_stats(ofproto->backer); |
6288 | ||
04d08d54 | 6289 | HMAP_FOR_EACH (subfacet, hmap_node, &ofproto->backer->subfacets) { |
4dff9097 EJ |
6290 | struct facet *facet = subfacet->facet; |
6291 | ||
04d08d54 EJ |
6292 | if (ofproto_dpif_cast(facet->rule->up.ofproto) != ofproto) { |
6293 | continue; | |
6294 | } | |
6295 | ||
9566abf9 | 6296 | odp_flow_key_format(subfacet->key, subfacet->key_len, &ds); |
27022416 JP |
6297 | |
6298 | ds_put_format(&ds, ", packets:%"PRIu64", bytes:%"PRIu64", used:", | |
6299 | subfacet->dp_packet_count, subfacet->dp_byte_count); | |
6300 | if (subfacet->used) { | |
6301 | ds_put_format(&ds, "%.3fs", | |
6302 | (time_msec() - subfacet->used) / 1000.0); | |
6303 | } else { | |
6304 | ds_put_format(&ds, "never"); | |
6305 | } | |
6306 | if (subfacet->facet->tcp_flags) { | |
6307 | ds_put_cstr(&ds, ", flags:"); | |
6308 | packet_format_tcp_flags(&ds, subfacet->facet->tcp_flags); | |
6309 | } | |
6310 | ||
6311 | ds_put_cstr(&ds, ", actions:"); | |
bbafd73b | 6312 | if (facet->xout.slow) { |
f2245da3 JP |
6313 | uint64_t slow_path_stub[128 / 8]; |
6314 | const struct nlattr *actions; | |
6315 | size_t actions_len; | |
6316 | ||
bbafd73b | 6317 | compose_slow_path(ofproto, &facet->flow, facet->xout.slow, |
f2245da3 JP |
6318 | slow_path_stub, sizeof slow_path_stub, |
6319 | &actions, &actions_len); | |
6320 | format_odp_actions(&ds, actions, actions_len); | |
6321 | } else { | |
bbafd73b EJ |
6322 | format_odp_actions(&ds, facet->xout.odp_actions.data, |
6323 | facet->xout.odp_actions.size); | |
f2245da3 | 6324 | } |
27022416 JP |
6325 | ds_put_char(&ds, '\n'); |
6326 | } | |
6327 | ||
6328 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
6329 | ds_destroy(&ds); | |
6330 | } | |
6331 | ||
6332 | static void | |
6333 | ofproto_unixctl_dpif_del_flows(struct unixctl_conn *conn, | |
6334 | int argc OVS_UNUSED, const char *argv[], | |
6335 | void *aux OVS_UNUSED) | |
6336 | { | |
6337 | struct ds ds = DS_EMPTY_INITIALIZER; | |
6338 | struct ofproto_dpif *ofproto; | |
6339 | ||
6340 | ofproto = ofproto_dpif_lookup(argv[1]); | |
6341 | if (!ofproto) { | |
6342 | unixctl_command_reply_error(conn, "no such bridge"); | |
6343 | return; | |
6344 | } | |
6345 | ||
6346 | flush(&ofproto->up); | |
6347 | ||
6348 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
6349 | ds_destroy(&ds); | |
6350 | } | |
6351 | ||
abe529af BP |
6352 | static void |
6353 | ofproto_dpif_unixctl_init(void) | |
6354 | { | |
6355 | static bool registered; | |
6356 | if (registered) { | |
6357 | return; | |
6358 | } | |
6359 | registered = true; | |
6360 | ||
0e15264f BP |
6361 | unixctl_command_register( |
6362 | "ofproto/trace", | |
50aa28fd AW |
6363 | "[dp_name]|bridge odp_flow|br_flow [-generate|packet]", |
6364 | 1, 3, ofproto_unixctl_trace, NULL); | |
96e466a3 | 6365 | unixctl_command_register("fdb/flush", "[bridge]", 0, 1, |
0e15264f BP |
6366 | ofproto_unixctl_fdb_flush, NULL); |
6367 | unixctl_command_register("fdb/show", "bridge", 1, 1, | |
6368 | ofproto_unixctl_fdb_show, NULL); | |
6369 | unixctl_command_register("ofproto/clog", "", 0, 0, | |
6370 | ofproto_dpif_clog, NULL); | |
6371 | unixctl_command_register("ofproto/unclog", "", 0, 0, | |
6372 | ofproto_dpif_unclog, NULL); | |
6814e51f BP |
6373 | unixctl_command_register("ofproto/self-check", "[bridge]", 0, 1, |
6374 | ofproto_dpif_self_check, NULL); | |
27022416 JP |
6375 | unixctl_command_register("dpif/dump-dps", "", 0, 0, |
6376 | ofproto_unixctl_dpif_dump_dps, NULL); | |
dc54ef36 EJ |
6377 | unixctl_command_register("dpif/show", "", 0, 0, ofproto_unixctl_dpif_show, |
6378 | NULL); | |
27022416 JP |
6379 | unixctl_command_register("dpif/dump-flows", "bridge", 1, 1, |
6380 | ofproto_unixctl_dpif_dump_flows, NULL); | |
6381 | unixctl_command_register("dpif/del-flows", "bridge", 1, 1, | |
6382 | ofproto_unixctl_dpif_del_flows, NULL); | |
bcd2633a JP |
6383 | unixctl_command_register("dpif/dump-megaflows", "bridge", 1, 1, |
6384 | ofproto_unixctl_dpif_dump_megaflows, NULL); | |
abe529af BP |
6385 | } |
6386 | \f | |
52a90c29 BP |
6387 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) |
6388 | * | |
6389 | * This is deprecated. It is only for compatibility with broken device drivers | |
6390 | * in old versions of Linux that do not properly support VLANs when VLAN | |
6391 | * devices are not used. When broken device drivers are no longer in | |
6392 | * widespread use, we will delete these interfaces. */ | |
6393 | ||
6394 | static int | |
6395 | set_realdev(struct ofport *ofport_, uint16_t realdev_ofp_port, int vid) | |
6396 | { | |
6397 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto); | |
6398 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
6399 | ||
6400 | if (realdev_ofp_port == ofport->realdev_ofp_port | |
6401 | && vid == ofport->vlandev_vid) { | |
6402 | return 0; | |
6403 | } | |
6404 | ||
2cc3c58e | 6405 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
52a90c29 BP |
6406 | |
6407 | if (ofport->realdev_ofp_port) { | |
6408 | vsp_remove(ofport); | |
6409 | } | |
6410 | if (realdev_ofp_port && ofport->bundle) { | |
6411 | /* vlandevs are enslaved to their realdevs, so they are not allowed to | |
6412 | * themselves be part of a bundle. */ | |
6413 | bundle_set(ofport->up.ofproto, ofport->bundle, NULL); | |
6414 | } | |
6415 | ||
6416 | ofport->realdev_ofp_port = realdev_ofp_port; | |
6417 | ofport->vlandev_vid = vid; | |
6418 | ||
6419 | if (realdev_ofp_port) { | |
6420 | vsp_add(ofport, realdev_ofp_port, vid); | |
6421 | } | |
6422 | ||
6423 | return 0; | |
6424 | } | |
6425 | ||
6426 | static uint32_t | |
6427 | hash_realdev_vid(uint16_t realdev_ofp_port, int vid) | |
6428 | { | |
6429 | return hash_2words(realdev_ofp_port, vid); | |
6430 | } | |
6431 | ||
deea1200 AW |
6432 | /* Returns the OFP port number of the Linux VLAN device that corresponds to |
6433 | * 'vlan_tci' on the network device with port number 'realdev_ofp_port' in | |
6434 | * 'struct ofport_dpif'. For example, given 'realdev_ofp_port' of eth0 and | |
6435 | * 'vlan_tci' 9, it would return the port number of eth0.9. | |
40e05935 | 6436 | * |
deea1200 AW |
6437 | * Unless VLAN splinters are enabled for port 'realdev_ofp_port', this |
6438 | * function just returns its 'realdev_ofp_port' argument. */ | |
9583bc14 | 6439 | uint16_t |
52a90c29 | 6440 | vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto, |
deea1200 | 6441 | uint16_t realdev_ofp_port, ovs_be16 vlan_tci) |
52a90c29 BP |
6442 | { |
6443 | if (!hmap_is_empty(&ofproto->realdev_vid_map)) { | |
52a90c29 BP |
6444 | int vid = vlan_tci_to_vid(vlan_tci); |
6445 | const struct vlan_splinter *vsp; | |
6446 | ||
6447 | HMAP_FOR_EACH_WITH_HASH (vsp, realdev_vid_node, | |
6448 | hash_realdev_vid(realdev_ofp_port, vid), | |
6449 | &ofproto->realdev_vid_map) { | |
6450 | if (vsp->realdev_ofp_port == realdev_ofp_port | |
6451 | && vsp->vid == vid) { | |
deea1200 | 6452 | return vsp->vlandev_ofp_port; |
52a90c29 BP |
6453 | } |
6454 | } | |
6455 | } | |
deea1200 | 6456 | return realdev_ofp_port; |
52a90c29 BP |
6457 | } |
6458 | ||
6459 | static struct vlan_splinter * | |
6460 | vlandev_find(const struct ofproto_dpif *ofproto, uint16_t vlandev_ofp_port) | |
6461 | { | |
6462 | struct vlan_splinter *vsp; | |
6463 | ||
6464 | HMAP_FOR_EACH_WITH_HASH (vsp, vlandev_node, hash_int(vlandev_ofp_port, 0), | |
6465 | &ofproto->vlandev_map) { | |
6466 | if (vsp->vlandev_ofp_port == vlandev_ofp_port) { | |
6467 | return vsp; | |
6468 | } | |
6469 | } | |
6470 | ||
6471 | return NULL; | |
6472 | } | |
6473 | ||
40e05935 BP |
6474 | /* Returns the OpenFlow port number of the "real" device underlying the Linux |
6475 | * VLAN device with OpenFlow port number 'vlandev_ofp_port' and stores the | |
6476 | * VLAN VID of the Linux VLAN device in '*vid'. For example, given | |
6477 | * 'vlandev_ofp_port' of eth0.9, it would return the OpenFlow port number of | |
6478 | * eth0 and store 9 in '*vid'. | |
6479 | * | |
6480 | * Returns 0 and does not modify '*vid' if 'vlandev_ofp_port' is not a Linux | |
6481 | * VLAN device. Unless VLAN splinters are enabled, this is what this function | |
6482 | * always does.*/ | |
52a90c29 BP |
6483 | static uint16_t |
6484 | vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto, | |
40e05935 | 6485 | uint16_t vlandev_ofp_port, int *vid) |
52a90c29 BP |
6486 | { |
6487 | if (!hmap_is_empty(&ofproto->vlandev_map)) { | |
6488 | const struct vlan_splinter *vsp; | |
6489 | ||
6490 | vsp = vlandev_find(ofproto, vlandev_ofp_port); | |
6491 | if (vsp) { | |
6492 | if (vid) { | |
6493 | *vid = vsp->vid; | |
6494 | } | |
6495 | return vsp->realdev_ofp_port; | |
6496 | } | |
6497 | } | |
6498 | return 0; | |
6499 | } | |
6500 | ||
b98d8985 BP |
6501 | /* Given 'flow', a flow representing a packet received on 'ofproto', checks |
6502 | * whether 'flow->in_port' represents a Linux VLAN device. If so, changes | |
6503 | * 'flow->in_port' to the "real" device backing the VLAN device, sets | |
6504 | * 'flow->vlan_tci' to the VLAN VID, and returns true. Otherwise (which is | |
6505 | * always the case unless VLAN splinters are enabled), returns false without | |
6506 | * making any changes. */ | |
6507 | static bool | |
6508 | vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow) | |
6509 | { | |
6510 | uint16_t realdev; | |
6511 | int vid; | |
6512 | ||
6513 | realdev = vsp_vlandev_to_realdev(ofproto, flow->in_port, &vid); | |
6514 | if (!realdev) { | |
6515 | return false; | |
6516 | } | |
6517 | ||
6518 | /* Cause the flow to be processed as if it came in on the real device with | |
6519 | * the VLAN device's VLAN ID. */ | |
6520 | flow->in_port = realdev; | |
6521 | flow->vlan_tci = htons((vid & VLAN_VID_MASK) | VLAN_CFI); | |
6522 | return true; | |
6523 | } | |
6524 | ||
52a90c29 BP |
6525 | static void |
6526 | vsp_remove(struct ofport_dpif *port) | |
6527 | { | |
6528 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
6529 | struct vlan_splinter *vsp; | |
6530 | ||
6531 | vsp = vlandev_find(ofproto, port->up.ofp_port); | |
6532 | if (vsp) { | |
6533 | hmap_remove(&ofproto->vlandev_map, &vsp->vlandev_node); | |
6534 | hmap_remove(&ofproto->realdev_vid_map, &vsp->realdev_vid_node); | |
6535 | free(vsp); | |
6536 | ||
6537 | port->realdev_ofp_port = 0; | |
6538 | } else { | |
6539 | VLOG_ERR("missing vlan device record"); | |
6540 | } | |
6541 | } | |
6542 | ||
6543 | static void | |
6544 | vsp_add(struct ofport_dpif *port, uint16_t realdev_ofp_port, int vid) | |
6545 | { | |
6546 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
6547 | ||
6548 | if (!vsp_vlandev_to_realdev(ofproto, port->up.ofp_port, NULL) | |
6549 | && (vsp_realdev_to_vlandev(ofproto, realdev_ofp_port, htons(vid)) | |
6550 | == realdev_ofp_port)) { | |
6551 | struct vlan_splinter *vsp; | |
6552 | ||
6553 | vsp = xmalloc(sizeof *vsp); | |
6554 | hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node, | |
6555 | hash_int(port->up.ofp_port, 0)); | |
6556 | hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node, | |
6557 | hash_realdev_vid(realdev_ofp_port, vid)); | |
6558 | vsp->realdev_ofp_port = realdev_ofp_port; | |
6559 | vsp->vlandev_ofp_port = port->up.ofp_port; | |
6560 | vsp->vid = vid; | |
6561 | ||
6562 | port->realdev_ofp_port = realdev_ofp_port; | |
6563 | } else { | |
6564 | VLOG_ERR("duplicate vlan device record"); | |
6565 | } | |
6566 | } | |
e1b1d06a | 6567 | |
9583bc14 | 6568 | uint32_t |
e1b1d06a JP |
6569 | ofp_port_to_odp_port(const struct ofproto_dpif *ofproto, uint16_t ofp_port) |
6570 | { | |
6571 | const struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port); | |
6572 | return ofport ? ofport->odp_port : OVSP_NONE; | |
6573 | } | |
6574 | ||
acf60855 JP |
6575 | static struct ofport_dpif * |
6576 | odp_port_to_ofport(const struct dpif_backer *backer, uint32_t odp_port) | |
e1b1d06a JP |
6577 | { |
6578 | struct ofport_dpif *port; | |
6579 | ||
6580 | HMAP_FOR_EACH_IN_BUCKET (port, odp_port_node, | |
6581 | hash_int(odp_port, 0), | |
acf60855 | 6582 | &backer->odp_to_ofport_map) { |
e1b1d06a | 6583 | if (port->odp_port == odp_port) { |
acf60855 | 6584 | return port; |
e1b1d06a JP |
6585 | } |
6586 | } | |
6587 | ||
acf60855 JP |
6588 | return NULL; |
6589 | } | |
6590 | ||
6591 | static uint16_t | |
6592 | odp_port_to_ofp_port(const struct ofproto_dpif *ofproto, uint32_t odp_port) | |
6593 | { | |
6594 | struct ofport_dpif *port; | |
6595 | ||
6596 | port = odp_port_to_ofport(ofproto->backer, odp_port); | |
6472ba11 | 6597 | if (port && &ofproto->up == port->up.ofproto) { |
acf60855 JP |
6598 | return port->up.ofp_port; |
6599 | } else { | |
6600 | return OFPP_NONE; | |
6601 | } | |
e1b1d06a | 6602 | } |
655ab909 | 6603 | |
655ab909 AZ |
6604 | /* Compute exponentially weighted moving average, adding 'new' as the newest, |
6605 | * most heavily weighted element. 'base' designates the rate of decay: after | |
6606 | * 'base' further updates, 'new''s weight in the EWMA decays to about 1/e | |
6607 | * (about .37). */ | |
6608 | static void | |
6609 | exp_mavg(double *avg, int base, double new) | |
6610 | { | |
6611 | *avg = (*avg * (base - 1) + new) / base; | |
6612 | } | |
6613 | ||
6614 | static void | |
dc54ef36 | 6615 | update_moving_averages(struct dpif_backer *backer) |
655ab909 AZ |
6616 | { |
6617 | const int min_ms = 60 * 1000; /* milliseconds in one minute. */ | |
dc54ef36 EJ |
6618 | long long int minutes = (time_msec() - backer->created) / min_ms; |
6619 | ||
6620 | if (minutes > 0) { | |
6621 | backer->lifetime.add_rate = (double) backer->total_subfacet_add_count | |
6622 | / minutes; | |
6623 | backer->lifetime.del_rate = (double) backer->total_subfacet_del_count | |
6624 | / minutes; | |
6625 | } else { | |
6626 | backer->lifetime.add_rate = 0.0; | |
6627 | backer->lifetime.del_rate = 0.0; | |
6628 | } | |
655ab909 AZ |
6629 | |
6630 | /* Update hourly averages on the minute boundaries. */ | |
dc54ef36 EJ |
6631 | if (time_msec() - backer->last_minute >= min_ms) { |
6632 | exp_mavg(&backer->hourly.add_rate, 60, backer->subfacet_add_count); | |
6633 | exp_mavg(&backer->hourly.del_rate, 60, backer->subfacet_del_count); | |
655ab909 AZ |
6634 | |
6635 | /* Update daily averages on the hour boundaries. */ | |
dc54ef36 EJ |
6636 | if ((backer->last_minute - backer->created) / min_ms % 60 == 59) { |
6637 | exp_mavg(&backer->daily.add_rate, 24, backer->hourly.add_rate); | |
6638 | exp_mavg(&backer->daily.del_rate, 24, backer->hourly.del_rate); | |
655ab909 AZ |
6639 | } |
6640 | ||
dc54ef36 EJ |
6641 | backer->total_subfacet_add_count += backer->subfacet_add_count; |
6642 | backer->total_subfacet_del_count += backer->subfacet_del_count; | |
6643 | backer->subfacet_add_count = 0; | |
6644 | backer->subfacet_del_count = 0; | |
6645 | backer->last_minute += min_ms; | |
655ab909 AZ |
6646 | } |
6647 | } | |
e1b1d06a | 6648 | |
abe529af | 6649 | const struct ofproto_class ofproto_dpif_class = { |
b0408fca | 6650 | init, |
abe529af BP |
6651 | enumerate_types, |
6652 | enumerate_names, | |
6653 | del, | |
0aeaabc8 | 6654 | port_open_type, |
acf60855 JP |
6655 | type_run, |
6656 | type_run_fast, | |
6657 | type_wait, | |
abe529af BP |
6658 | alloc, |
6659 | construct, | |
6660 | destruct, | |
6661 | dealloc, | |
6662 | run, | |
5fcc0d00 | 6663 | run_fast, |
abe529af | 6664 | wait, |
0d085684 | 6665 | get_memory_usage, |
abe529af | 6666 | flush, |
6c1491fb BP |
6667 | get_features, |
6668 | get_tables, | |
abe529af BP |
6669 | port_alloc, |
6670 | port_construct, | |
6671 | port_destruct, | |
6672 | port_dealloc, | |
6673 | port_modified, | |
6674 | port_reconfigured, | |
6675 | port_query_by_name, | |
6676 | port_add, | |
6677 | port_del, | |
6527c598 | 6678 | port_get_stats, |
abe529af BP |
6679 | port_dump_start, |
6680 | port_dump_next, | |
6681 | port_dump_done, | |
6682 | port_poll, | |
6683 | port_poll_wait, | |
6684 | port_is_lacp_current, | |
0ab6decf | 6685 | NULL, /* rule_choose_table */ |
abe529af BP |
6686 | rule_alloc, |
6687 | rule_construct, | |
6688 | rule_destruct, | |
6689 | rule_dealloc, | |
abe529af BP |
6690 | rule_get_stats, |
6691 | rule_execute, | |
6692 | rule_modify_actions, | |
7257b535 | 6693 | set_frag_handling, |
abe529af BP |
6694 | packet_out, |
6695 | set_netflow, | |
6696 | get_netflow_ids, | |
6697 | set_sflow, | |
29089a54 | 6698 | set_ipfix, |
abe529af | 6699 | set_cfm, |
9a9e3786 | 6700 | get_cfm_status, |
ccc09689 EJ |
6701 | set_bfd, |
6702 | get_bfd_status, | |
21f7563c JP |
6703 | set_stp, |
6704 | get_stp_status, | |
6705 | set_stp_port, | |
6706 | get_stp_port_status, | |
8b36f51e | 6707 | set_queues, |
abe529af BP |
6708 | bundle_set, |
6709 | bundle_remove, | |
6710 | mirror_set, | |
9d24de3b | 6711 | mirror_get_stats, |
abe529af BP |
6712 | set_flood_vlans, |
6713 | is_mirror_output_bundle, | |
8402c74b | 6714 | forward_bpdu_changed, |
c4069512 | 6715 | set_mac_table_config, |
52a90c29 | 6716 | set_realdev, |
abe529af | 6717 | }; |