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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 | ||
5bee6e26 | 19 | #include "ofproto/ofproto-provider.h" |
abe529af BP |
20 | |
21 | #include <errno.h> | |
22 | ||
ccc09689 | 23 | #include "bfd.h" |
abe529af | 24 | #include "bond.h" |
daff3353 | 25 | #include "bundle.h" |
abe529af BP |
26 | #include "byte-order.h" |
27 | #include "connmgr.h" | |
28 | #include "coverage.h" | |
29 | #include "cfm.h" | |
30 | #include "dpif.h" | |
31 | #include "dynamic-string.h" | |
32 | #include "fail-open.h" | |
33 | #include "hmapx.h" | |
34 | #include "lacp.h" | |
75a75043 | 35 | #include "learn.h" |
abe529af | 36 | #include "mac-learning.h" |
816fd533 | 37 | #include "meta-flow.h" |
abe529af | 38 | #include "multipath.h" |
0a740f48 | 39 | #include "netdev-vport.h" |
abe529af BP |
40 | #include "netdev.h" |
41 | #include "netlink.h" | |
42 | #include "nx-match.h" | |
43 | #include "odp-util.h" | |
1ac7c9bd | 44 | #include "odp-execute.h" |
abe529af BP |
45 | #include "ofp-util.h" |
46 | #include "ofpbuf.h" | |
f25d0cf3 | 47 | #include "ofp-actions.h" |
31a19d69 | 48 | #include "ofp-parse.h" |
abe529af | 49 | #include "ofp-print.h" |
9d6ac44e | 50 | #include "ofproto-dpif-governor.h" |
29089a54 | 51 | #include "ofproto-dpif-ipfix.h" |
bae473fe | 52 | #include "ofproto-dpif-sflow.h" |
abe529af | 53 | #include "poll-loop.h" |
0d085684 | 54 | #include "simap.h" |
27022416 | 55 | #include "smap.h" |
abe529af | 56 | #include "timer.h" |
b9ad7294 | 57 | #include "tunnel.h" |
6c1491fb | 58 | #include "unaligned.h" |
abe529af BP |
59 | #include "unixctl.h" |
60 | #include "vlan-bitmap.h" | |
61 | #include "vlog.h" | |
62 | ||
63 | VLOG_DEFINE_THIS_MODULE(ofproto_dpif); | |
64 | ||
abe529af | 65 | COVERAGE_DEFINE(ofproto_dpif_expired); |
abe529af BP |
66 | COVERAGE_DEFINE(ofproto_dpif_xlate); |
67 | COVERAGE_DEFINE(facet_changed_rule); | |
abe529af BP |
68 | COVERAGE_DEFINE(facet_revalidate); |
69 | COVERAGE_DEFINE(facet_unexpected); | |
9d6ac44e | 70 | COVERAGE_DEFINE(facet_suppress); |
abe529af | 71 | |
29901626 | 72 | /* Maximum depth of flow table recursion (due to resubmit actions) in a |
abe529af | 73 | * flow translation. */ |
1642690c | 74 | #define MAX_RESUBMIT_RECURSION 64 |
abe529af | 75 | |
9cdaaebe BP |
76 | /* Number of implemented OpenFlow tables. */ |
77 | enum { N_TABLES = 255 }; | |
c57b2226 BP |
78 | enum { TBL_INTERNAL = N_TABLES - 1 }; /* Used for internal hidden rules. */ |
79 | BUILD_ASSERT_DECL(N_TABLES >= 2 && N_TABLES <= 255); | |
9cdaaebe | 80 | |
abe529af BP |
81 | struct ofport_dpif; |
82 | struct ofproto_dpif; | |
a088a1ff | 83 | struct flow_miss; |
ac35f9c8 | 84 | struct facet; |
abe529af BP |
85 | |
86 | struct rule_dpif { | |
87 | struct rule up; | |
88 | ||
abe529af BP |
89 | /* These statistics: |
90 | * | |
91 | * - Do include packets and bytes from facets that have been deleted or | |
92 | * whose own statistics have been folded into the rule. | |
93 | * | |
94 | * - Do include packets and bytes sent "by hand" that were accounted to | |
95 | * the rule without any facet being involved (this is a rare corner | |
96 | * case in rule_execute()). | |
97 | * | |
98 | * - Do not include packet or bytes that can be obtained from any facet's | |
99 | * packet_count or byte_count member or that can be obtained from the | |
b0f7b9b5 | 100 | * datapath by, e.g., dpif_flow_get() for any subfacet. |
abe529af BP |
101 | */ |
102 | uint64_t packet_count; /* Number of packets received. */ | |
103 | uint64_t byte_count; /* Number of bytes received. */ | |
104 | ||
54a9cbc9 BP |
105 | tag_type tag; /* Caches rule_calculate_tag() result. */ |
106 | ||
abe529af BP |
107 | struct list facets; /* List of "struct facet"s. */ |
108 | }; | |
109 | ||
110 | static struct rule_dpif *rule_dpif_cast(const struct rule *rule) | |
111 | { | |
112 | return rule ? CONTAINER_OF(rule, struct rule_dpif, up) : NULL; | |
113 | } | |
114 | ||
29901626 | 115 | static struct rule_dpif *rule_dpif_lookup(struct ofproto_dpif *, |
c57b2226 BP |
116 | const struct flow *); |
117 | static struct rule_dpif *rule_dpif_lookup__(struct ofproto_dpif *, | |
118 | const struct flow *, | |
119 | uint8_t table); | |
c376f9a3 IY |
120 | static struct rule_dpif *rule_dpif_miss_rule(struct ofproto_dpif *ofproto, |
121 | const struct flow *flow); | |
abe529af | 122 | |
7e741ffb | 123 | static void rule_get_stats(struct rule *, uint64_t *packets, uint64_t *bytes); |
112bc5f4 BP |
124 | static void rule_credit_stats(struct rule_dpif *, |
125 | const struct dpif_flow_stats *); | |
822d9414 | 126 | static tag_type rule_calculate_tag(const struct flow *, |
5cb7a798 | 127 | const struct minimask *, uint32_t basis); |
b0f7b9b5 BP |
128 | static void rule_invalidate(const struct rule_dpif *); |
129 | ||
abe529af BP |
130 | #define MAX_MIRRORS 32 |
131 | typedef uint32_t mirror_mask_t; | |
132 | #define MIRROR_MASK_C(X) UINT32_C(X) | |
133 | BUILD_ASSERT_DECL(sizeof(mirror_mask_t) * CHAR_BIT >= MAX_MIRRORS); | |
134 | struct ofmirror { | |
135 | struct ofproto_dpif *ofproto; /* Owning ofproto. */ | |
136 | size_t idx; /* In ofproto's "mirrors" array. */ | |
137 | void *aux; /* Key supplied by ofproto's client. */ | |
138 | char *name; /* Identifier for log messages. */ | |
139 | ||
140 | /* Selection criteria. */ | |
141 | struct hmapx srcs; /* Contains "struct ofbundle *"s. */ | |
142 | struct hmapx dsts; /* Contains "struct ofbundle *"s. */ | |
143 | unsigned long *vlans; /* Bitmap of chosen VLANs, NULL selects all. */ | |
144 | ||
9ba15e2a | 145 | /* Output (exactly one of out == NULL and out_vlan == -1 is true). */ |
abe529af BP |
146 | struct ofbundle *out; /* Output port or NULL. */ |
147 | int out_vlan; /* Output VLAN or -1. */ | |
9ba15e2a | 148 | mirror_mask_t dup_mirrors; /* Bitmap of mirrors with the same output. */ |
9d24de3b JP |
149 | |
150 | /* Counters. */ | |
151 | int64_t packet_count; /* Number of packets sent. */ | |
152 | int64_t byte_count; /* Number of bytes sent. */ | |
abe529af BP |
153 | }; |
154 | ||
155 | static void mirror_destroy(struct ofmirror *); | |
9d24de3b JP |
156 | static void update_mirror_stats(struct ofproto_dpif *ofproto, |
157 | mirror_mask_t mirrors, | |
158 | uint64_t packets, uint64_t bytes); | |
abe529af | 159 | |
abe529af | 160 | struct ofbundle { |
abe529af | 161 | struct hmap_node hmap_node; /* In struct ofproto's "bundles" hmap. */ |
6e492d81 | 162 | struct ofproto_dpif *ofproto; /* Owning ofproto. */ |
abe529af BP |
163 | void *aux; /* Key supplied by ofproto's client. */ |
164 | char *name; /* Identifier for log messages. */ | |
165 | ||
166 | /* Configuration. */ | |
167 | struct list ports; /* Contains "struct ofport"s. */ | |
ecac4ebf | 168 | enum port_vlan_mode vlan_mode; /* VLAN mode */ |
abe529af BP |
169 | int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */ |
170 | unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1. | |
171 | * NULL if all VLANs are trunked. */ | |
172 | struct lacp *lacp; /* LACP if LACP is enabled, otherwise NULL. */ | |
173 | struct bond *bond; /* Nonnull iff more than one port. */ | |
5e9ceccd | 174 | bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */ |
abe529af BP |
175 | |
176 | /* Status. */ | |
9e1fd49b | 177 | bool floodable; /* True if no port has OFPUTIL_PC_NO_FLOOD set. */ |
abe529af BP |
178 | |
179 | /* Port mirroring info. */ | |
180 | mirror_mask_t src_mirrors; /* Mirrors triggered when packet received. */ | |
181 | mirror_mask_t dst_mirrors; /* Mirrors triggered when packet sent. */ | |
182 | mirror_mask_t mirror_out; /* Mirrors that output to this bundle. */ | |
183 | }; | |
184 | ||
185 | static void bundle_remove(struct ofport *); | |
7bde8dd8 | 186 | static void bundle_update(struct ofbundle *); |
abe529af BP |
187 | static void bundle_destroy(struct ofbundle *); |
188 | static void bundle_del_port(struct ofport_dpif *); | |
189 | static void bundle_run(struct ofbundle *); | |
190 | static void bundle_wait(struct ofbundle *); | |
4acbc98d | 191 | static struct ofbundle *lookup_input_bundle(const struct ofproto_dpif *, |
70c2fd56 BP |
192 | uint16_t in_port, bool warn, |
193 | struct ofport_dpif **in_ofportp); | |
abe529af | 194 | |
33158a18 JP |
195 | /* A controller may use OFPP_NONE as the ingress port to indicate that |
196 | * it did not arrive on a "real" port. 'ofpp_none_bundle' exists for | |
197 | * when an input bundle is needed for validation (e.g., mirroring or | |
198 | * OFPP_NORMAL processing). It is not connected to an 'ofproto' or have | |
199 | * any 'port' structs, so care must be taken when dealing with it. */ | |
200 | static struct ofbundle ofpp_none_bundle = { | |
201 | .name = "OFPP_NONE", | |
202 | .vlan_mode = PORT_VLAN_TRUNK | |
203 | }; | |
204 | ||
21f7563c JP |
205 | static void stp_run(struct ofproto_dpif *ofproto); |
206 | static void stp_wait(struct ofproto_dpif *ofproto); | |
851bf71d EJ |
207 | static int set_stp_port(struct ofport *, |
208 | const struct ofproto_port_stp_settings *); | |
21f7563c | 209 | |
5da5ec37 BP |
210 | static bool ofbundle_includes_vlan(const struct ofbundle *, uint16_t vlan); |
211 | ||
bbafd73b EJ |
212 | struct xlate_ctx; |
213 | ||
214 | /* Initial values of fields of the packet that may be changed during | |
215 | * flow processing and needed later. */ | |
216 | struct initial_vals { | |
217 | /* This is the value of vlan_tci in the packet as actually received from | |
218 | * dpif. This is the same as the facet's flow.vlan_tci unless the packet | |
219 | * was received via a VLAN splinter. In that case, this value is 0 | |
220 | * (because the packet as actually received from the dpif had no 802.1Q | |
221 | * tag) but the facet's flow.vlan_tci is set to the VLAN that the splinter | |
222 | * represents. | |
223 | * | |
224 | * This member should be removed when the VLAN splinters feature is no | |
225 | * longer needed. */ | |
226 | ovs_be16 vlan_tci; | |
227 | }; | |
228 | ||
229 | struct xlate_out { | |
230 | tag_type tags; /* Tags associated with actions. */ | |
231 | enum slow_path_reason slow; /* 0 if fast path may be used. */ | |
232 | bool has_learn; /* Actions include NXAST_LEARN? */ | |
233 | bool has_normal; /* Actions output to OFPP_NORMAL? */ | |
234 | bool has_fin_timeout; /* Actions include NXAST_FIN_TIMEOUT? */ | |
235 | uint16_t nf_output_iface; /* Output interface index for NetFlow. */ | |
236 | mirror_mask_t mirrors; /* Bitmap of associated mirrors. */ | |
237 | ||
238 | uint64_t odp_actions_stub[256 / 8]; | |
239 | struct ofpbuf odp_actions; | |
240 | }; | |
abe529af | 241 | |
bbafd73b | 242 | struct xlate_in { |
abe529af BP |
243 | struct ofproto_dpif *ofproto; |
244 | ||
245 | /* Flow to which the OpenFlow actions apply. xlate_actions() will modify | |
246 | * this flow when actions change header fields. */ | |
247 | struct flow flow; | |
248 | ||
bbafd73b | 249 | struct initial_vals initial_vals; |
bd85dac1 | 250 | |
abe529af BP |
251 | /* The packet corresponding to 'flow', or a null pointer if we are |
252 | * revalidating without a packet to refer to. */ | |
253 | const struct ofpbuf *packet; | |
254 | ||
3de9590b BP |
255 | /* Should OFPP_NORMAL update the MAC learning table? Should "learn" |
256 | * actions update the flow table? | |
257 | * | |
258 | * We want to update these tables if we are actually processing a packet, | |
259 | * or if we are accounting for packets that the datapath has processed, but | |
260 | * not if we are just revalidating. */ | |
261 | bool may_learn; | |
75a75043 | 262 | |
bbafd73b | 263 | /* The rule initiating translation or NULL. */ |
18b2a258 | 264 | struct rule_dpif *rule; |
54834960 | 265 | |
bbafd73b EJ |
266 | /* The actions to translate. If 'rule' is not NULL, these may be NULL. */ |
267 | const struct ofpact *ofpacts; | |
268 | size_t ofpacts_len; | |
269 | ||
0e553d9c BP |
270 | /* Union of the set of TCP flags seen so far in this flow. (Used only by |
271 | * NXAST_FIN_TIMEOUT. Set to zero to avoid updating updating rules' | |
272 | * timeouts.) */ | |
273 | uint8_t tcp_flags; | |
274 | ||
112bc5f4 BP |
275 | /* If nonnull, flow translation calls this function just before executing a |
276 | * resubmit or OFPP_TABLE action. In addition, disables logging of traces | |
277 | * when the recursion depth is exceeded. | |
278 | * | |
279 | * 'rule' is the rule being submitted into. It will be null if the | |
280 | * resubmit or OFPP_TABLE action didn't find a matching rule. | |
281 | * | |
282 | * This is normally null so the client has to set it manually after | |
bbafd73b | 283 | * calling xlate_in_init(). */ |
f03a84b9 | 284 | void (*resubmit_hook)(struct xlate_ctx *, struct rule_dpif *rule); |
112bc5f4 | 285 | |
479df176 BP |
286 | /* If nonnull, flow translation calls this function to report some |
287 | * significant decision, e.g. to explain why OFPP_NORMAL translation | |
288 | * dropped a packet. */ | |
f03a84b9 | 289 | void (*report_hook)(struct xlate_ctx *, const char *s); |
479df176 | 290 | |
112bc5f4 BP |
291 | /* If nonnull, flow translation credits the specified statistics to each |
292 | * rule reached through a resubmit or OFPP_TABLE action. | |
abe529af BP |
293 | * |
294 | * This is normally null so the client has to set it manually after | |
bbafd73b | 295 | * calling xlate_in_init(). */ |
112bc5f4 | 296 | const struct dpif_flow_stats *resubmit_stats; |
bbafd73b | 297 | }; |
abe529af | 298 | |
bbafd73b EJ |
299 | /* Context used by xlate_actions() and its callees. */ |
300 | struct xlate_ctx { | |
301 | struct xlate_in *xin; | |
302 | struct xlate_out *xout; | |
abe529af | 303 | |
bbafd73b EJ |
304 | struct ofproto_dpif *ofproto; |
305 | ||
306 | /* Flow at the last commit. */ | |
307 | struct flow base_flow; | |
abe529af | 308 | |
bbafd73b EJ |
309 | /* Tunnel IP destination address as received. This is stored separately |
310 | * as the base_flow.tunnel is cleared on init to reflect the datapath | |
311 | * behavior. Used to make sure not to send tunneled output to ourselves, | |
312 | * which might lead to an infinite loop. This could happen easily | |
313 | * if a tunnel is marked as 'ip_remote=flow', and the flow does not | |
314 | * actually set the tun_dst field. */ | |
315 | ovs_be32 orig_tunnel_ip_dst; | |
316 | ||
317 | /* Stack for the push and pop actions. Each stack element is of type | |
318 | * "union mf_subvalue". */ | |
319 | union mf_subvalue init_stack[1024 / sizeof(union mf_subvalue)]; | |
320 | struct ofpbuf stack; | |
321 | ||
322 | /* The rule that we are currently translating, or NULL. */ | |
323 | struct rule_dpif *rule; | |
abe529af BP |
324 | |
325 | int recurse; /* Recursion level, via xlate_table_action. */ | |
6a6455e5 | 326 | bool max_resubmit_trigger; /* Recursed too deeply during translation. */ |
deedf7e7 | 327 | uint32_t orig_skb_priority; /* Priority when packet arrived. */ |
29901626 | 328 | uint8_t table_id; /* OpenFlow table ID where flow was found. */ |
6ff686f2 | 329 | uint32_t sflow_n_outputs; /* Number of output ports. */ |
9b56fe13 | 330 | uint32_t sflow_odp_port; /* Output port for composing sFlow action. */ |
6ff686f2 | 331 | uint16_t user_cookie_offset;/* Used for user_action_cookie fixup. */ |
848e8809 | 332 | bool exit; /* No further actions should be processed. */ |
abe529af BP |
333 | }; |
334 | ||
bbafd73b EJ |
335 | static void xlate_in_init(struct xlate_in *, struct ofproto_dpif *, |
336 | const struct flow *, const struct initial_vals *, | |
337 | struct rule_dpif *, uint8_t tcp_flags, | |
338 | const struct ofpbuf *); | |
339 | ||
340 | static void xlate_out_uninit(struct xlate_out *); | |
341 | ||
342 | static void xlate_actions(struct xlate_in *, struct xlate_out *); | |
343 | ||
344 | static void xlate_actions_for_side_effects(struct xlate_in *); | |
14f94f9a | 345 | |
f03a84b9 | 346 | static void xlate_table_action(struct xlate_ctx *, uint16_t in_port, |
0a740f48 | 347 | uint8_t table_id, bool may_packet_in); |
abe529af | 348 | |
6a7e895f BP |
349 | static size_t put_userspace_action(const struct ofproto_dpif *, |
350 | struct ofpbuf *odp_actions, | |
351 | const struct flow *, | |
29089a54 RL |
352 | const union user_action_cookie *, |
353 | const size_t); | |
6a7e895f BP |
354 | |
355 | static void compose_slow_path(const struct ofproto_dpif *, const struct flow *, | |
356 | enum slow_path_reason, | |
357 | uint64_t *stub, size_t stub_size, | |
358 | const struct nlattr **actionsp, | |
359 | size_t *actions_lenp); | |
360 | ||
f03a84b9 | 361 | static void xlate_report(struct xlate_ctx *ctx, const char *s); |
479df176 | 362 | |
6a7e895f BP |
363 | /* A subfacet (see "struct subfacet" below) has three possible installation |
364 | * states: | |
365 | * | |
366 | * - SF_NOT_INSTALLED: Not installed in the datapath. This will only be the | |
367 | * case just after the subfacet is created, just before the subfacet is | |
368 | * destroyed, or if the datapath returns an error when we try to install a | |
369 | * subfacet. | |
370 | * | |
371 | * - SF_FAST_PATH: The subfacet's actions are installed in the datapath. | |
372 | * | |
373 | * - SF_SLOW_PATH: An action that sends every packet for the subfacet through | |
374 | * ofproto_dpif is installed in the datapath. | |
375 | */ | |
376 | enum subfacet_path { | |
377 | SF_NOT_INSTALLED, /* No datapath flow for this subfacet. */ | |
378 | SF_FAST_PATH, /* Full actions are installed. */ | |
379 | SF_SLOW_PATH, /* Send-to-userspace action is installed. */ | |
380 | }; | |
381 | ||
5f5fbd17 BP |
382 | /* A dpif flow and actions associated with a facet. |
383 | * | |
384 | * See also the large comment on struct facet. */ | |
385 | struct subfacet { | |
386 | /* Owners. */ | |
387 | struct hmap_node hmap_node; /* In struct ofproto_dpif 'subfacets' list. */ | |
388 | struct list list_node; /* In struct facet's 'facets' list. */ | |
389 | struct facet *facet; /* Owning facet. */ | |
390 | ||
5f5fbd17 BP |
391 | enum odp_key_fitness key_fitness; |
392 | struct nlattr *key; | |
393 | int key_len; | |
394 | ||
395 | long long int used; /* Time last used; time created if not used. */ | |
655ab909 | 396 | long long int created; /* Time created. */ |
5f5fbd17 BP |
397 | |
398 | uint64_t dp_packet_count; /* Last known packet count in the datapath. */ | |
399 | uint64_t dp_byte_count; /* Last known byte count in the datapath. */ | |
400 | ||
6a7e895f | 401 | enum subfacet_path path; /* Installed in datapath? */ |
5f5fbd17 BP |
402 | }; |
403 | ||
1d85f9e5 JP |
404 | #define SUBFACET_DESTROY_MAX_BATCH 50 |
405 | ||
a088a1ff | 406 | static struct subfacet *subfacet_create(struct facet *, struct flow_miss *miss, |
459b16a1 | 407 | long long int now); |
5f5fbd17 | 408 | static struct subfacet *subfacet_find(struct ofproto_dpif *, |
acf60855 | 409 | const struct nlattr *key, size_t key_len, |
9566abf9 | 410 | uint32_t key_hash); |
5f5fbd17 BP |
411 | static void subfacet_destroy(struct subfacet *); |
412 | static void subfacet_destroy__(struct subfacet *); | |
1d85f9e5 JP |
413 | static void subfacet_destroy_batch(struct ofproto_dpif *, |
414 | struct subfacet **, int n); | |
5f5fbd17 BP |
415 | static void subfacet_reset_dp_stats(struct subfacet *, |
416 | struct dpif_flow_stats *); | |
5f5fbd17 BP |
417 | static void subfacet_update_stats(struct subfacet *, |
418 | const struct dpif_flow_stats *); | |
5f5fbd17 | 419 | static int subfacet_install(struct subfacet *, |
4dff9097 EJ |
420 | const struct ofpbuf *odp_actions, |
421 | struct dpif_flow_stats *); | |
5f5fbd17 BP |
422 | static void subfacet_uninstall(struct subfacet *); |
423 | ||
b0f7b9b5 BP |
424 | /* An exact-match instantiation of an OpenFlow flow. |
425 | * | |
426 | * A facet associates a "struct flow", which represents the Open vSwitch | |
b95fc6ba BP |
427 | * userspace idea of an exact-match flow, with one or more subfacets. Each |
428 | * subfacet tracks the datapath's idea of the exact-match flow equivalent to | |
429 | * the facet. When the kernel module (or other dpif implementation) and Open | |
430 | * vSwitch userspace agree on the definition of a flow key, there is exactly | |
431 | * one subfacet per facet. If the dpif implementation supports more-specific | |
432 | * flow matching than userspace, however, a facet can have more than one | |
433 | * subfacet, each of which corresponds to some distinction in flow that | |
434 | * userspace simply doesn't understand. | |
b0f7b9b5 BP |
435 | * |
436 | * Flow expiration works in terms of subfacets, so a facet must have at least | |
437 | * one subfacet or it will never expire, leaking memory. */ | |
abe529af | 438 | struct facet { |
b0f7b9b5 BP |
439 | /* Owners. */ |
440 | struct hmap_node hmap_node; /* In owning ofproto's 'facets' hmap. */ | |
441 | struct list list_node; /* In owning rule's 'facets' list. */ | |
442 | struct rule_dpif *rule; /* Owning rule. */ | |
443 | ||
444 | /* Owned data. */ | |
445 | struct list subfacets; | |
abe529af BP |
446 | long long int used; /* Time last used; time created if not used. */ |
447 | ||
b0f7b9b5 BP |
448 | /* Key. */ |
449 | struct flow flow; | |
450 | ||
abe529af BP |
451 | /* These statistics: |
452 | * | |
453 | * - Do include packets and bytes sent "by hand", e.g. with | |
454 | * dpif_execute(). | |
455 | * | |
456 | * - Do include packets and bytes that were obtained from the datapath | |
b0f7b9b5 | 457 | * when a subfacet's statistics were reset (e.g. dpif_flow_put() with |
abe529af | 458 | * DPIF_FP_ZERO_STATS). |
b0f7b9b5 BP |
459 | * |
460 | * - Do not include packets or bytes that can be obtained from the | |
461 | * datapath for any existing subfacet. | |
abe529af BP |
462 | */ |
463 | uint64_t packet_count; /* Number of packets received. */ | |
464 | uint64_t byte_count; /* Number of bytes received. */ | |
465 | ||
b0f7b9b5 | 466 | /* Resubmit statistics. */ |
9d24de3b JP |
467 | uint64_t prev_packet_count; /* Number of packets from last stats push. */ |
468 | uint64_t prev_byte_count; /* Number of bytes from last stats push. */ | |
469 | long long int prev_used; /* Used time from last stats push. */ | |
abe529af | 470 | |
b0f7b9b5 | 471 | /* Accounting. */ |
907a4c5e | 472 | uint64_t accounted_bytes; /* Bytes processed by facet_account(). */ |
b0f7b9b5 | 473 | struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */ |
0e553d9c | 474 | uint8_t tcp_flags; /* TCP flags seen for this 'rule'. */ |
abe529af | 475 | |
bbafd73b | 476 | struct xlate_out xout; |
4dff9097 EJ |
477 | |
478 | /* Initial values of the packet that may be needed later. */ | |
479 | struct initial_vals initial_vals; | |
480 | ||
26cd7e34 BP |
481 | /* Storage for a single subfacet, to reduce malloc() time and space |
482 | * overhead. (A facet always has at least one subfacet and in the common | |
bcd516b7 JP |
483 | * case has exactly one subfacet. However, 'one_subfacet' may not |
484 | * always be valid, since it could have been removed after newer | |
485 | * subfacets were pushed onto the 'subfacets' list.) */ | |
26cd7e34 | 486 | struct subfacet one_subfacet; |
6cf474d7 EJ |
487 | |
488 | long long int learn_rl; /* Rate limiter for facet_learn(). */ | |
abe529af BP |
489 | }; |
490 | ||
4dff9097 | 491 | static struct facet *facet_create(const struct flow_miss *, uint32_t hash); |
15baa734 | 492 | static void facet_remove(struct facet *); |
abe529af BP |
493 | static void facet_free(struct facet *); |
494 | ||
2b459b83 BP |
495 | static struct facet *facet_find(struct ofproto_dpif *, |
496 | const struct flow *, uint32_t hash); | |
abe529af | 497 | static struct facet *facet_lookup_valid(struct ofproto_dpif *, |
2b459b83 | 498 | const struct flow *, uint32_t hash); |
5bf64ade | 499 | static bool facet_revalidate(struct facet *); |
6814e51f | 500 | static bool facet_check_consistency(struct facet *); |
abe529af | 501 | |
15baa734 | 502 | static void facet_flush_stats(struct facet *); |
abe529af | 503 | |
bbb5d219 | 504 | static void facet_reset_counters(struct facet *); |
9dfb1f78 | 505 | static void facet_push_stats(struct facet *, bool may_learn); |
3de9590b BP |
506 | static void facet_learn(struct facet *); |
507 | static void facet_account(struct facet *); | |
8844e035 | 508 | static void push_all_stats(void); |
abe529af BP |
509 | |
510 | static bool facet_is_controller_flow(struct facet *); | |
511 | ||
abe529af | 512 | struct ofport_dpif { |
acf60855 | 513 | struct hmap_node odp_port_node; /* In dpif_backer's "odp_to_ofport_map". */ |
abe529af BP |
514 | struct ofport up; |
515 | ||
516 | uint32_t odp_port; | |
517 | struct ofbundle *bundle; /* Bundle that contains this port, if any. */ | |
518 | struct list bundle_node; /* In struct ofbundle's "ports" list. */ | |
519 | struct cfm *cfm; /* Connectivity Fault Management, if any. */ | |
ccc09689 | 520 | struct bfd *bfd; /* BFD, if any. */ |
abe529af | 521 | tag_type tag; /* Tag associated with this port. */ |
015e08bc | 522 | bool may_enable; /* May be enabled in bonds. */ |
3e5b3fdb | 523 | long long int carrier_seq; /* Carrier status changes. */ |
b9ad7294 | 524 | struct tnl_port *tnl_port; /* Tunnel handle, or null. */ |
21f7563c | 525 | |
52a90c29 | 526 | /* Spanning tree. */ |
21f7563c JP |
527 | struct stp_port *stp_port; /* Spanning Tree Protocol, if any. */ |
528 | enum stp_state stp_state; /* Always STP_DISABLED if STP not in use. */ | |
529 | long long int stp_state_entered; | |
8b36f51e EJ |
530 | |
531 | struct hmap priorities; /* Map of attached 'priority_to_dscp's. */ | |
52a90c29 BP |
532 | |
533 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
534 | * | |
535 | * This is deprecated. It is only for compatibility with broken device | |
536 | * drivers in old versions of Linux that do not properly support VLANs when | |
537 | * VLAN devices are not used. When broken device drivers are no longer in | |
538 | * widespread use, we will delete these interfaces. */ | |
539 | uint16_t realdev_ofp_port; | |
540 | int vlandev_vid; | |
8b36f51e EJ |
541 | }; |
542 | ||
543 | /* Node in 'ofport_dpif''s 'priorities' map. Used to maintain a map from | |
544 | * 'priority' (the datapath's term for QoS queue) to the dscp bits which all | |
545 | * traffic egressing the 'ofport' with that priority should be marked with. */ | |
546 | struct priority_to_dscp { | |
547 | struct hmap_node hmap_node; /* Node in 'ofport_dpif''s 'priorities' map. */ | |
548 | uint32_t priority; /* Priority of this queue (see struct flow). */ | |
549 | ||
550 | uint8_t dscp; /* DSCP bits to mark outgoing traffic with. */ | |
abe529af BP |
551 | }; |
552 | ||
52a90c29 BP |
553 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) |
554 | * | |
555 | * This is deprecated. It is only for compatibility with broken device drivers | |
556 | * in old versions of Linux that do not properly support VLANs when VLAN | |
557 | * devices are not used. When broken device drivers are no longer in | |
558 | * widespread use, we will delete these interfaces. */ | |
559 | struct vlan_splinter { | |
560 | struct hmap_node realdev_vid_node; | |
561 | struct hmap_node vlandev_node; | |
562 | uint16_t realdev_ofp_port; | |
563 | uint16_t vlandev_ofp_port; | |
564 | int vid; | |
565 | }; | |
566 | ||
deea1200 AW |
567 | static uint16_t vsp_realdev_to_vlandev(const struct ofproto_dpif *, |
568 | uint16_t realdev_ofp_port, | |
569 | ovs_be16 vlan_tci); | |
b98d8985 | 570 | static bool vsp_adjust_flow(const struct ofproto_dpif *, struct flow *); |
52a90c29 BP |
571 | static void vsp_remove(struct ofport_dpif *); |
572 | static void vsp_add(struct ofport_dpif *, uint16_t realdev_ofp_port, int vid); | |
573 | ||
e1b1d06a JP |
574 | static uint32_t ofp_port_to_odp_port(const struct ofproto_dpif *, |
575 | uint16_t ofp_port); | |
576 | static uint16_t odp_port_to_ofp_port(const struct ofproto_dpif *, | |
577 | uint32_t odp_port); | |
578 | ||
abe529af BP |
579 | static struct ofport_dpif * |
580 | ofport_dpif_cast(const struct ofport *ofport) | |
581 | { | |
abe529af BP |
582 | return ofport ? CONTAINER_OF(ofport, struct ofport_dpif, up) : NULL; |
583 | } | |
584 | ||
585 | static void port_run(struct ofport_dpif *); | |
0aa66d6e | 586 | static void port_run_fast(struct ofport_dpif *); |
abe529af | 587 | static void port_wait(struct ofport_dpif *); |
8aee94b6 | 588 | static int set_bfd(struct ofport *, const struct smap *); |
a5610457 | 589 | static int set_cfm(struct ofport *, const struct cfm_settings *); |
8b36f51e | 590 | static void ofport_clear_priorities(struct ofport_dpif *); |
8fa4d1d0 | 591 | static void run_fast_rl(void); |
abe529af | 592 | |
7ee20df1 BP |
593 | struct dpif_completion { |
594 | struct list list_node; | |
595 | struct ofoperation *op; | |
596 | }; | |
597 | ||
54a9cbc9 BP |
598 | /* Extra information about a classifier table. |
599 | * Currently used just for optimized flow revalidation. */ | |
600 | struct table_dpif { | |
601 | /* If either of these is nonnull, then this table has a form that allows | |
602 | * flows to be tagged to avoid revalidating most flows for the most common | |
603 | * kinds of flow table changes. */ | |
604 | struct cls_table *catchall_table; /* Table that wildcards all fields. */ | |
605 | struct cls_table *other_table; /* Table with any other wildcard set. */ | |
606 | uint32_t basis; /* Keeps each table's tags separate. */ | |
607 | }; | |
608 | ||
3c4a309c BP |
609 | /* Reasons that we might need to revalidate every facet, and corresponding |
610 | * coverage counters. | |
611 | * | |
612 | * A value of 0 means that there is no need to revalidate. | |
613 | * | |
614 | * It would be nice to have some cleaner way to integrate with coverage | |
615 | * counters, but with only a few reasons I guess this is good enough for | |
616 | * now. */ | |
617 | enum revalidate_reason { | |
618 | REV_RECONFIGURE = 1, /* Switch configuration changed. */ | |
619 | REV_STP, /* Spanning tree protocol port status change. */ | |
620 | REV_PORT_TOGGLED, /* Port enabled or disabled by CFM, LACP, ...*/ | |
621 | REV_FLOW_TABLE, /* Flow table changed. */ | |
622 | REV_INCONSISTENCY /* Facet self-check failed. */ | |
623 | }; | |
624 | COVERAGE_DEFINE(rev_reconfigure); | |
625 | COVERAGE_DEFINE(rev_stp); | |
626 | COVERAGE_DEFINE(rev_port_toggled); | |
627 | COVERAGE_DEFINE(rev_flow_table); | |
628 | COVERAGE_DEFINE(rev_inconsistency); | |
629 | ||
8f73d537 EJ |
630 | /* Drop keys are odp flow keys which have drop flows installed in the kernel. |
631 | * These are datapath flows which have no associated ofproto, if they did we | |
632 | * would use facets. */ | |
633 | struct drop_key { | |
634 | struct hmap_node hmap_node; | |
635 | struct nlattr *key; | |
636 | size_t key_len; | |
637 | }; | |
638 | ||
acf60855 JP |
639 | /* All datapaths of a given type share a single dpif backer instance. */ |
640 | struct dpif_backer { | |
641 | char *type; | |
642 | int refcount; | |
643 | struct dpif *dpif; | |
644 | struct timer next_expiration; | |
645 | struct hmap odp_to_ofport_map; /* ODP port to ofport mapping. */ | |
2cc3c58e | 646 | |
7d82ab2e | 647 | struct simap tnl_backers; /* Set of dpif ports backing tunnels. */ |
b9ad7294 | 648 | |
2cc3c58e EJ |
649 | /* Facet revalidation flags applying to facets which use this backer. */ |
650 | enum revalidate_reason need_revalidate; /* Revalidate every facet. */ | |
651 | struct tag_set revalidate_set; /* Revalidate only matching facets. */ | |
8f73d537 EJ |
652 | |
653 | struct hmap drop_keys; /* Set of dropped odp keys. */ | |
40358701 | 654 | bool recv_set_enable; /* Enables or disables receiving packets. */ |
acf60855 JP |
655 | }; |
656 | ||
657 | /* All existing ofproto_backer instances, indexed by ofproto->up.type. */ | |
658 | static struct shash all_dpif_backers = SHASH_INITIALIZER(&all_dpif_backers); | |
659 | ||
8f73d537 | 660 | static void drop_key_clear(struct dpif_backer *); |
acf60855 JP |
661 | static struct ofport_dpif * |
662 | odp_port_to_ofport(const struct dpif_backer *, uint32_t odp_port); | |
663 | ||
655ab909 AZ |
664 | struct avg_subfacet_rates { |
665 | double add_rate; /* Moving average of new flows created per minute. */ | |
666 | double del_rate; /* Moving average of flows deleted per minute. */ | |
667 | }; | |
668 | static void show_dp_rates(struct ds *ds, const char *heading, | |
669 | const struct avg_subfacet_rates *rates); | |
670 | static void exp_mavg(double *avg, int base, double new); | |
735d7efb | 671 | |
abe529af | 672 | struct ofproto_dpif { |
b44a10b7 | 673 | struct hmap_node all_ofproto_dpifs_node; /* In 'all_ofproto_dpifs'. */ |
abe529af | 674 | struct ofproto up; |
acf60855 | 675 | struct dpif_backer *backer; |
abe529af | 676 | |
c57b2226 BP |
677 | /* Special OpenFlow rules. */ |
678 | struct rule_dpif *miss_rule; /* Sends flow table misses to controller. */ | |
679 | struct rule_dpif *no_packet_in_rule; /* Drops flow table misses. */ | |
7fd51d39 | 680 | struct rule_dpif *drop_frags_rule; /* Used in OFPC_FRAG_DROP mode. */ |
c57b2226 | 681 | |
abe529af BP |
682 | /* Bridging. */ |
683 | struct netflow *netflow; | |
bae473fe | 684 | struct dpif_sflow *sflow; |
29089a54 | 685 | struct dpif_ipfix *ipfix; |
abe529af BP |
686 | struct hmap bundles; /* Contains "struct ofbundle"s. */ |
687 | struct mac_learning *ml; | |
688 | struct ofmirror *mirrors[MAX_MIRRORS]; | |
ccb7c863 | 689 | bool has_mirrors; |
abe529af BP |
690 | bool has_bonded_bundles; |
691 | ||
abe529af BP |
692 | /* Facets. */ |
693 | struct hmap facets; | |
b0f7b9b5 | 694 | struct hmap subfacets; |
9d6ac44e | 695 | struct governor *governor; |
4d2a0f39 | 696 | long long int consistency_rl; |
54a9cbc9 BP |
697 | |
698 | /* Revalidation. */ | |
699 | struct table_dpif tables[N_TABLES]; | |
7ee20df1 BP |
700 | |
701 | /* Support for debugging async flow mods. */ | |
702 | struct list completions; | |
daff3353 EJ |
703 | |
704 | bool has_bundle_action; /* True when the first bundle action appears. */ | |
6527c598 PS |
705 | struct netdev_stats stats; /* To account packets generated and consumed in |
706 | * userspace. */ | |
21f7563c JP |
707 | |
708 | /* Spanning tree. */ | |
709 | struct stp *stp; | |
710 | long long int stp_last_tick; | |
52a90c29 BP |
711 | |
712 | /* VLAN splinters. */ | |
713 | struct hmap realdev_vid_map; /* (realdev,vid) -> vlandev. */ | |
714 | struct hmap vlandev_map; /* vlandev -> (realdev,vid). */ | |
e1b1d06a | 715 | |
acf60855 | 716 | /* Ports. */ |
0a740f48 EJ |
717 | struct sset ports; /* Set of standard port names. */ |
718 | struct sset ghost_ports; /* Ports with no datapath port. */ | |
acf60855 JP |
719 | struct sset port_poll_set; /* Queued names for port_poll() reply. */ |
720 | int port_poll_errno; /* Last errno for port_poll() reply. */ | |
735d7efb AZ |
721 | |
722 | /* Per ofproto's dpif stats. */ | |
723 | uint64_t n_hit; | |
724 | uint64_t n_missed; | |
655ab909 AZ |
725 | |
726 | /* Subfacet statistics. | |
727 | * | |
728 | * These keep track of the total number of subfacets added and deleted and | |
729 | * flow life span. They are useful for computing the flow rates stats | |
730 | * exposed via "ovs-appctl dpif/show". The goal is to learn about | |
731 | * traffic patterns in ways that we can use later to improve Open vSwitch | |
732 | * performance in new situations. */ | |
733 | long long int created; /* Time when it is created. */ | |
734 | unsigned int max_n_subfacet; /* Maximum number of flows */ | |
735 | ||
736 | /* The average number of subfacets... */ | |
737 | struct avg_subfacet_rates hourly; /* ...over the last hour. */ | |
738 | struct avg_subfacet_rates daily; /* ...over the last day. */ | |
739 | long long int last_minute; /* Last time 'hourly' was updated. */ | |
740 | ||
741 | /* Number of subfacets added or deleted since 'last_minute'. */ | |
742 | unsigned int subfacet_add_count; | |
743 | unsigned int subfacet_del_count; | |
744 | ||
745 | /* Number of subfacets added or deleted from 'created' to 'last_minute.' */ | |
746 | unsigned long long int total_subfacet_add_count; | |
747 | unsigned long long int total_subfacet_del_count; | |
748 | ||
749 | /* Sum of the number of milliseconds that each subfacet existed, | |
750 | * over the subfacets that have been added and then later deleted. */ | |
751 | unsigned long long int total_subfacet_life_span; | |
752 | ||
753 | /* Incremented by the number of currently existing subfacets, each | |
754 | * time we pull statistics from the kernel. */ | |
755 | unsigned long long int total_subfacet_count; | |
756 | ||
757 | /* Number of times we pull statistics from the kernel. */ | |
758 | unsigned long long int n_update_stats; | |
abe529af | 759 | }; |
655ab909 AZ |
760 | static unsigned long long int avg_subfacet_life_span( |
761 | const struct ofproto_dpif *); | |
762 | static double avg_subfacet_count(const struct ofproto_dpif *ofproto); | |
763 | static void update_moving_averages(struct ofproto_dpif *ofproto); | |
655ab909 | 764 | static void update_max_subfacet_count(struct ofproto_dpif *ofproto); |
abe529af | 765 | |
7ee20df1 BP |
766 | /* Defer flow mod completion until "ovs-appctl ofproto/unclog"? (Useful only |
767 | * for debugging the asynchronous flow_mod implementation.) */ | |
768 | static bool clogged; | |
769 | ||
b44a10b7 BP |
770 | /* All existing ofproto_dpif instances, indexed by ->up.name. */ |
771 | static struct hmap all_ofproto_dpifs = HMAP_INITIALIZER(&all_ofproto_dpifs); | |
772 | ||
abe529af BP |
773 | static void ofproto_dpif_unixctl_init(void); |
774 | ||
775 | static struct ofproto_dpif * | |
776 | ofproto_dpif_cast(const struct ofproto *ofproto) | |
777 | { | |
cb22974d | 778 | ovs_assert(ofproto->ofproto_class == &ofproto_dpif_class); |
abe529af BP |
779 | return CONTAINER_OF(ofproto, struct ofproto_dpif, up); |
780 | } | |
781 | ||
4acbc98d | 782 | static struct ofport_dpif *get_ofp_port(const struct ofproto_dpif *, |
abe529af | 783 | uint16_t ofp_port); |
4acbc98d | 784 | static struct ofport_dpif *get_odp_port(const struct ofproto_dpif *, |
abe529af | 785 | uint32_t odp_port); |
6a6455e5 | 786 | static void ofproto_trace(struct ofproto_dpif *, const struct flow *, |
14f94f9a JP |
787 | const struct ofpbuf *, |
788 | const struct initial_vals *, struct ds *); | |
abe529af BP |
789 | |
790 | /* Packet processing. */ | |
791 | static void update_learning_table(struct ofproto_dpif *, | |
792 | const struct flow *, int vlan, | |
793 | struct ofbundle *); | |
501f8d1f BP |
794 | /* Upcalls. */ |
795 | #define FLOW_MISS_MAX_BATCH 50 | |
acf60855 | 796 | static int handle_upcalls(struct dpif_backer *, unsigned int max_batch); |
abe529af BP |
797 | |
798 | /* Flow expiration. */ | |
acf60855 | 799 | static int expire(struct dpif_backer *); |
abe529af | 800 | |
6fca1ffb BP |
801 | /* NetFlow. */ |
802 | static void send_netflow_active_timeouts(struct ofproto_dpif *); | |
803 | ||
abe529af | 804 | /* Utilities. */ |
52a90c29 | 805 | static int send_packet(const struct ofport_dpif *, struct ofpbuf *packet); |
6a7d1a39 BP |
806 | static size_t compose_sflow_action(const struct ofproto_dpif *, |
807 | struct ofpbuf *odp_actions, | |
808 | const struct flow *, uint32_t odp_port); | |
29089a54 RL |
809 | static void compose_ipfix_action(const struct ofproto_dpif *, |
810 | struct ofpbuf *odp_actions, | |
811 | const struct flow *); | |
f03a84b9 | 812 | static void add_mirror_actions(struct xlate_ctx *ctx, |
c06bba01 | 813 | const struct flow *flow); |
abe529af BP |
814 | /* Global variables. */ |
815 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
acf60855 JP |
816 | |
817 | /* Initial mappings of port to bridge mappings. */ | |
818 | static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports); | |
abe529af BP |
819 | \f |
820 | /* Factory functions. */ | |
821 | ||
b0408fca | 822 | static void |
acf60855 | 823 | init(const struct shash *iface_hints) |
b0408fca | 824 | { |
acf60855 JP |
825 | struct shash_node *node; |
826 | ||
827 | /* Make a local copy, since we don't own 'iface_hints' elements. */ | |
828 | SHASH_FOR_EACH(node, iface_hints) { | |
829 | const struct iface_hint *orig_hint = node->data; | |
830 | struct iface_hint *new_hint = xmalloc(sizeof *new_hint); | |
831 | ||
832 | new_hint->br_name = xstrdup(orig_hint->br_name); | |
833 | new_hint->br_type = xstrdup(orig_hint->br_type); | |
834 | new_hint->ofp_port = orig_hint->ofp_port; | |
835 | ||
836 | shash_add(&init_ofp_ports, node->name, new_hint); | |
837 | } | |
b0408fca JP |
838 | } |
839 | ||
abe529af BP |
840 | static void |
841 | enumerate_types(struct sset *types) | |
842 | { | |
843 | dp_enumerate_types(types); | |
844 | } | |
845 | ||
846 | static int | |
847 | enumerate_names(const char *type, struct sset *names) | |
848 | { | |
acf60855 JP |
849 | struct ofproto_dpif *ofproto; |
850 | ||
851 | sset_clear(names); | |
852 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
853 | if (strcmp(type, ofproto->up.type)) { | |
854 | continue; | |
855 | } | |
856 | sset_add(names, ofproto->up.name); | |
857 | } | |
858 | ||
859 | return 0; | |
abe529af BP |
860 | } |
861 | ||
862 | static int | |
863 | del(const char *type, const char *name) | |
864 | { | |
865 | struct dpif *dpif; | |
866 | int error; | |
867 | ||
868 | error = dpif_open(name, type, &dpif); | |
869 | if (!error) { | |
870 | error = dpif_delete(dpif); | |
871 | dpif_close(dpif); | |
872 | } | |
873 | return error; | |
874 | } | |
875 | \f | |
0aeaabc8 JP |
876 | static const char * |
877 | port_open_type(const char *datapath_type, const char *port_type) | |
878 | { | |
879 | return dpif_port_open_type(datapath_type, port_type); | |
880 | } | |
881 | ||
acf60855 JP |
882 | /* Type functions. */ |
883 | ||
476cb42a BP |
884 | static struct ofproto_dpif * |
885 | lookup_ofproto_dpif_by_port_name(const char *name) | |
886 | { | |
887 | struct ofproto_dpif *ofproto; | |
888 | ||
889 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
890 | if (sset_contains(&ofproto->ports, name)) { | |
891 | return ofproto; | |
892 | } | |
893 | } | |
894 | ||
895 | return NULL; | |
896 | } | |
897 | ||
acf60855 JP |
898 | static int |
899 | type_run(const char *type) | |
900 | { | |
e20b5746 | 901 | static long long int push_timer = LLONG_MIN; |
acf60855 JP |
902 | struct dpif_backer *backer; |
903 | char *devname; | |
904 | int error; | |
905 | ||
906 | backer = shash_find_data(&all_dpif_backers, type); | |
907 | if (!backer) { | |
908 | /* This is not necessarily a problem, since backers are only | |
909 | * created on demand. */ | |
910 | return 0; | |
911 | } | |
912 | ||
913 | dpif_run(backer->dpif); | |
914 | ||
e20b5746 EJ |
915 | /* The most natural place to push facet statistics is when they're pulled |
916 | * from the datapath. However, when there are many flows in the datapath, | |
917 | * this expensive operation can occur so frequently, that it reduces our | |
918 | * ability to quickly set up flows. To reduce the cost, we push statistics | |
919 | * here instead. */ | |
920 | if (time_msec() > push_timer) { | |
921 | push_timer = time_msec() + 2000; | |
922 | push_all_stats(); | |
923 | } | |
924 | ||
40358701 GS |
925 | /* If vswitchd started with other_config:flow_restore_wait set as "true", |
926 | * and the configuration has now changed to "false", enable receiving | |
927 | * packets from the datapath. */ | |
928 | if (!backer->recv_set_enable && !ofproto_get_flow_restore_wait()) { | |
929 | backer->recv_set_enable = true; | |
930 | ||
931 | error = dpif_recv_set(backer->dpif, backer->recv_set_enable); | |
932 | if (error) { | |
933 | VLOG_ERR("Failed to enable receiving packets in dpif."); | |
934 | return error; | |
935 | } | |
936 | dpif_flow_flush(backer->dpif); | |
937 | backer->need_revalidate = REV_RECONFIGURE; | |
938 | } | |
939 | ||
2cc3c58e EJ |
940 | if (backer->need_revalidate |
941 | || !tag_set_is_empty(&backer->revalidate_set)) { | |
942 | struct tag_set revalidate_set = backer->revalidate_set; | |
943 | bool need_revalidate = backer->need_revalidate; | |
944 | struct ofproto_dpif *ofproto; | |
a614d823 KM |
945 | struct simap_node *node; |
946 | struct simap tmp_backers; | |
947 | ||
948 | /* Handle tunnel garbage collection. */ | |
949 | simap_init(&tmp_backers); | |
950 | simap_swap(&backer->tnl_backers, &tmp_backers); | |
951 | ||
952 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
953 | struct ofport_dpif *iter; | |
954 | ||
955 | if (backer != ofproto->backer) { | |
956 | continue; | |
957 | } | |
958 | ||
959 | HMAP_FOR_EACH (iter, up.hmap_node, &ofproto->up.ports) { | |
960 | const char *dp_port; | |
961 | ||
962 | if (!iter->tnl_port) { | |
963 | continue; | |
964 | } | |
965 | ||
966 | dp_port = netdev_vport_get_dpif_port(iter->up.netdev); | |
967 | node = simap_find(&tmp_backers, dp_port); | |
968 | if (node) { | |
969 | simap_put(&backer->tnl_backers, dp_port, node->data); | |
970 | simap_delete(&tmp_backers, node); | |
971 | node = simap_find(&backer->tnl_backers, dp_port); | |
972 | } else { | |
973 | node = simap_find(&backer->tnl_backers, dp_port); | |
974 | if (!node) { | |
975 | uint32_t odp_port = UINT32_MAX; | |
976 | ||
977 | if (!dpif_port_add(backer->dpif, iter->up.netdev, | |
978 | &odp_port)) { | |
979 | simap_put(&backer->tnl_backers, dp_port, odp_port); | |
980 | node = simap_find(&backer->tnl_backers, dp_port); | |
981 | } | |
982 | } | |
983 | } | |
984 | ||
985 | iter->odp_port = node ? node->data : OVSP_NONE; | |
986 | if (tnl_port_reconfigure(&iter->up, iter->odp_port, | |
987 | &iter->tnl_port)) { | |
988 | backer->need_revalidate = REV_RECONFIGURE; | |
989 | } | |
990 | } | |
991 | } | |
992 | ||
993 | SIMAP_FOR_EACH (node, &tmp_backers) { | |
994 | dpif_port_del(backer->dpif, node->data); | |
995 | } | |
996 | simap_destroy(&tmp_backers); | |
2cc3c58e EJ |
997 | |
998 | switch (backer->need_revalidate) { | |
999 | case REV_RECONFIGURE: COVERAGE_INC(rev_reconfigure); break; | |
1000 | case REV_STP: COVERAGE_INC(rev_stp); break; | |
1001 | case REV_PORT_TOGGLED: COVERAGE_INC(rev_port_toggled); break; | |
1002 | case REV_FLOW_TABLE: COVERAGE_INC(rev_flow_table); break; | |
1003 | case REV_INCONSISTENCY: COVERAGE_INC(rev_inconsistency); break; | |
1004 | } | |
1005 | ||
8f73d537 EJ |
1006 | if (backer->need_revalidate) { |
1007 | /* Clear the drop_keys in case we should now be accepting some | |
1008 | * formerly dropped flows. */ | |
1009 | drop_key_clear(backer); | |
1010 | } | |
1011 | ||
f728af2e BP |
1012 | /* Clear the revalidation flags. */ |
1013 | tag_set_init(&backer->revalidate_set); | |
1014 | backer->need_revalidate = 0; | |
1015 | ||
2cc3c58e | 1016 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { |
f231418e | 1017 | struct facet *facet, *next; |
2cc3c58e EJ |
1018 | |
1019 | if (ofproto->backer != backer) { | |
1020 | continue; | |
1021 | } | |
1022 | ||
f231418e | 1023 | HMAP_FOR_EACH_SAFE (facet, next, hmap_node, &ofproto->facets) { |
2cc3c58e | 1024 | if (need_revalidate |
bbafd73b | 1025 | || tag_set_intersects(&revalidate_set, facet->xout.tags)) { |
2cc3c58e | 1026 | facet_revalidate(facet); |
8fa4d1d0 | 1027 | run_fast_rl(); |
2cc3c58e EJ |
1028 | } |
1029 | } | |
1030 | } | |
2cc3c58e EJ |
1031 | } |
1032 | ||
40358701 GS |
1033 | if (!backer->recv_set_enable) { |
1034 | /* Wake up before a max of 1000ms. */ | |
1035 | timer_set_duration(&backer->next_expiration, 1000); | |
1036 | } else if (timer_expired(&backer->next_expiration)) { | |
acf60855 JP |
1037 | int delay = expire(backer); |
1038 | timer_set_duration(&backer->next_expiration, delay); | |
1039 | } | |
1040 | ||
1041 | /* Check for port changes in the dpif. */ | |
1042 | while ((error = dpif_port_poll(backer->dpif, &devname)) == 0) { | |
476cb42a | 1043 | struct ofproto_dpif *ofproto; |
acf60855 JP |
1044 | struct dpif_port port; |
1045 | ||
1046 | /* Don't report on the datapath's device. */ | |
1047 | if (!strcmp(devname, dpif_base_name(backer->dpif))) { | |
c83b89ab | 1048 | goto next; |
acf60855 JP |
1049 | } |
1050 | ||
b9ad7294 EJ |
1051 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, |
1052 | &all_ofproto_dpifs) { | |
7d82ab2e | 1053 | if (simap_contains(&ofproto->backer->tnl_backers, devname)) { |
b9ad7294 EJ |
1054 | goto next; |
1055 | } | |
1056 | } | |
1057 | ||
476cb42a | 1058 | ofproto = lookup_ofproto_dpif_by_port_name(devname); |
acf60855 JP |
1059 | if (dpif_port_query_by_name(backer->dpif, devname, &port)) { |
1060 | /* The port was removed. If we know the datapath, | |
1061 | * report it through poll_set(). If we don't, it may be | |
1062 | * notifying us of a removal we initiated, so ignore it. | |
1063 | * If there's a pending ENOBUFS, let it stand, since | |
1064 | * everything will be reevaluated. */ | |
1065 | if (ofproto && ofproto->port_poll_errno != ENOBUFS) { | |
1066 | sset_add(&ofproto->port_poll_set, devname); | |
1067 | ofproto->port_poll_errno = 0; | |
1068 | } | |
acf60855 JP |
1069 | } else if (!ofproto) { |
1070 | /* The port was added, but we don't know with which | |
1071 | * ofproto we should associate it. Delete it. */ | |
1072 | dpif_port_del(backer->dpif, port.port_no); | |
1073 | } | |
5b5e6a4c | 1074 | dpif_port_destroy(&port); |
acf60855 | 1075 | |
c83b89ab | 1076 | next: |
acf60855 JP |
1077 | free(devname); |
1078 | } | |
1079 | ||
1080 | if (error != EAGAIN) { | |
1081 | struct ofproto_dpif *ofproto; | |
1082 | ||
1083 | /* There was some sort of error, so propagate it to all | |
1084 | * ofprotos that use this backer. */ | |
1085 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, | |
1086 | &all_ofproto_dpifs) { | |
1087 | if (ofproto->backer == backer) { | |
1088 | sset_clear(&ofproto->port_poll_set); | |
1089 | ofproto->port_poll_errno = error; | |
1090 | } | |
1091 | } | |
1092 | } | |
1093 | ||
1094 | return 0; | |
1095 | } | |
1096 | ||
1097 | static int | |
8fa4d1d0 | 1098 | dpif_backer_run_fast(struct dpif_backer *backer, int max_batch) |
acf60855 | 1099 | { |
acf60855 JP |
1100 | unsigned int work; |
1101 | ||
40358701 GS |
1102 | /* If recv_set_enable is false, we should not handle upcalls. */ |
1103 | if (!backer->recv_set_enable) { | |
1104 | return 0; | |
1105 | } | |
1106 | ||
acf60855 JP |
1107 | /* Handle one or more batches of upcalls, until there's nothing left to do |
1108 | * or until we do a fixed total amount of work. | |
1109 | * | |
1110 | * We do work in batches because it can be much cheaper to set up a number | |
1111 | * of flows and fire off their patches all at once. We do multiple batches | |
1112 | * because in some cases handling a packet can cause another packet to be | |
1113 | * queued almost immediately as part of the return flow. Both | |
1114 | * optimizations can make major improvements on some benchmarks and | |
1115 | * presumably for real traffic as well. */ | |
1116 | work = 0; | |
8fa4d1d0 EJ |
1117 | while (work < max_batch) { |
1118 | int retval = handle_upcalls(backer, max_batch - work); | |
acf60855 JP |
1119 | if (retval <= 0) { |
1120 | return -retval; | |
1121 | } | |
1122 | work += retval; | |
1123 | } | |
1124 | ||
1125 | return 0; | |
1126 | } | |
1127 | ||
8fa4d1d0 EJ |
1128 | static int |
1129 | type_run_fast(const char *type) | |
1130 | { | |
1131 | struct dpif_backer *backer; | |
1132 | ||
1133 | backer = shash_find_data(&all_dpif_backers, type); | |
1134 | if (!backer) { | |
1135 | /* This is not necessarily a problem, since backers are only | |
1136 | * created on demand. */ | |
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | return dpif_backer_run_fast(backer, FLOW_MISS_MAX_BATCH); | |
1141 | } | |
1142 | ||
1143 | static void | |
1144 | run_fast_rl(void) | |
1145 | { | |
1146 | static long long int port_rl = LLONG_MIN; | |
1147 | static unsigned int backer_rl = 0; | |
1148 | ||
1149 | if (time_msec() >= port_rl) { | |
1150 | struct ofproto_dpif *ofproto; | |
1151 | struct ofport_dpif *ofport; | |
1152 | ||
1153 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
1154 | ||
1155 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { | |
1156 | port_run_fast(ofport); | |
1157 | } | |
1158 | } | |
1159 | port_rl = time_msec() + 200; | |
1160 | } | |
1161 | ||
1162 | /* XXX: We have to be careful not to do too much work in this function. If | |
1163 | * we call dpif_backer_run_fast() too often, or with too large a batch, | |
1164 | * performance improves signifcantly, but at a cost. It's possible for the | |
1165 | * number of flows in the datapath to increase without bound, and for poll | |
1166 | * loops to take 10s of seconds. The correct solution to this problem, | |
1167 | * long term, is to separate flow miss handling into it's own thread so it | |
1168 | * isn't affected by revalidations, and expirations. Until then, this is | |
1169 | * the best we can do. */ | |
1170 | if (++backer_rl >= 10) { | |
1171 | struct shash_node *node; | |
1172 | ||
1173 | backer_rl = 0; | |
1174 | SHASH_FOR_EACH (node, &all_dpif_backers) { | |
1175 | dpif_backer_run_fast(node->data, 1); | |
1176 | } | |
1177 | } | |
1178 | } | |
1179 | ||
acf60855 JP |
1180 | static void |
1181 | type_wait(const char *type) | |
1182 | { | |
1183 | struct dpif_backer *backer; | |
1184 | ||
1185 | backer = shash_find_data(&all_dpif_backers, type); | |
1186 | if (!backer) { | |
1187 | /* This is not necessarily a problem, since backers are only | |
1188 | * created on demand. */ | |
1189 | return; | |
1190 | } | |
1191 | ||
1192 | timer_wait(&backer->next_expiration); | |
1193 | } | |
1194 | \f | |
abe529af BP |
1195 | /* Basic life-cycle. */ |
1196 | ||
c57b2226 BP |
1197 | static int add_internal_flows(struct ofproto_dpif *); |
1198 | ||
abe529af BP |
1199 | static struct ofproto * |
1200 | alloc(void) | |
1201 | { | |
1202 | struct ofproto_dpif *ofproto = xmalloc(sizeof *ofproto); | |
1203 | return &ofproto->up; | |
1204 | } | |
1205 | ||
1206 | static void | |
1207 | dealloc(struct ofproto *ofproto_) | |
1208 | { | |
1209 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1210 | free(ofproto); | |
1211 | } | |
1212 | ||
acf60855 JP |
1213 | static void |
1214 | close_dpif_backer(struct dpif_backer *backer) | |
1215 | { | |
1216 | struct shash_node *node; | |
1217 | ||
cb22974d | 1218 | ovs_assert(backer->refcount > 0); |
acf60855 JP |
1219 | |
1220 | if (--backer->refcount) { | |
1221 | return; | |
1222 | } | |
1223 | ||
8f73d537 EJ |
1224 | drop_key_clear(backer); |
1225 | hmap_destroy(&backer->drop_keys); | |
1226 | ||
7d82ab2e | 1227 | simap_destroy(&backer->tnl_backers); |
acf60855 JP |
1228 | hmap_destroy(&backer->odp_to_ofport_map); |
1229 | node = shash_find(&all_dpif_backers, backer->type); | |
1230 | free(backer->type); | |
1231 | shash_delete(&all_dpif_backers, node); | |
1232 | dpif_close(backer->dpif); | |
1233 | ||
1234 | free(backer); | |
1235 | } | |
1236 | ||
1237 | /* Datapath port slated for removal from datapath. */ | |
1238 | struct odp_garbage { | |
1239 | struct list list_node; | |
1240 | uint32_t odp_port; | |
1241 | }; | |
1242 | ||
1243 | static int | |
1244 | open_dpif_backer(const char *type, struct dpif_backer **backerp) | |
1245 | { | |
1246 | struct dpif_backer *backer; | |
1247 | struct dpif_port_dump port_dump; | |
1248 | struct dpif_port port; | |
1249 | struct shash_node *node; | |
1250 | struct list garbage_list; | |
1251 | struct odp_garbage *garbage, *next; | |
1252 | struct sset names; | |
1253 | char *backer_name; | |
1254 | const char *name; | |
1255 | int error; | |
1256 | ||
1257 | backer = shash_find_data(&all_dpif_backers, type); | |
1258 | if (backer) { | |
1259 | backer->refcount++; | |
1260 | *backerp = backer; | |
1261 | return 0; | |
1262 | } | |
1263 | ||
1264 | backer_name = xasprintf("ovs-%s", type); | |
1265 | ||
1266 | /* Remove any existing datapaths, since we assume we're the only | |
1267 | * userspace controlling the datapath. */ | |
1268 | sset_init(&names); | |
1269 | dp_enumerate_names(type, &names); | |
1270 | SSET_FOR_EACH(name, &names) { | |
1271 | struct dpif *old_dpif; | |
1272 | ||
1273 | /* Don't remove our backer if it exists. */ | |
1274 | if (!strcmp(name, backer_name)) { | |
1275 | continue; | |
1276 | } | |
1277 | ||
1278 | if (dpif_open(name, type, &old_dpif)) { | |
1279 | VLOG_WARN("couldn't open old datapath %s to remove it", name); | |
1280 | } else { | |
1281 | dpif_delete(old_dpif); | |
1282 | dpif_close(old_dpif); | |
1283 | } | |
1284 | } | |
1285 | sset_destroy(&names); | |
1286 | ||
1287 | backer = xmalloc(sizeof *backer); | |
1288 | ||
1289 | error = dpif_create_and_open(backer_name, type, &backer->dpif); | |
1290 | free(backer_name); | |
1291 | if (error) { | |
1292 | VLOG_ERR("failed to open datapath of type %s: %s", type, | |
1293 | strerror(error)); | |
4c1b1289 | 1294 | free(backer); |
acf60855 JP |
1295 | return error; |
1296 | } | |
1297 | ||
1298 | backer->type = xstrdup(type); | |
1299 | backer->refcount = 1; | |
1300 | hmap_init(&backer->odp_to_ofport_map); | |
8f73d537 | 1301 | hmap_init(&backer->drop_keys); |
acf60855 | 1302 | timer_set_duration(&backer->next_expiration, 1000); |
2cc3c58e | 1303 | backer->need_revalidate = 0; |
7d82ab2e | 1304 | simap_init(&backer->tnl_backers); |
2cc3c58e | 1305 | tag_set_init(&backer->revalidate_set); |
40358701 | 1306 | backer->recv_set_enable = !ofproto_get_flow_restore_wait(); |
acf60855 JP |
1307 | *backerp = backer; |
1308 | ||
40358701 GS |
1309 | if (backer->recv_set_enable) { |
1310 | dpif_flow_flush(backer->dpif); | |
1311 | } | |
acf60855 JP |
1312 | |
1313 | /* Loop through the ports already on the datapath and remove any | |
1314 | * that we don't need anymore. */ | |
1315 | list_init(&garbage_list); | |
1316 | dpif_port_dump_start(&port_dump, backer->dpif); | |
1317 | while (dpif_port_dump_next(&port_dump, &port)) { | |
1318 | node = shash_find(&init_ofp_ports, port.name); | |
1319 | if (!node && strcmp(port.name, dpif_base_name(backer->dpif))) { | |
1320 | garbage = xmalloc(sizeof *garbage); | |
1321 | garbage->odp_port = port.port_no; | |
1322 | list_push_front(&garbage_list, &garbage->list_node); | |
1323 | } | |
1324 | } | |
1325 | dpif_port_dump_done(&port_dump); | |
1326 | ||
1327 | LIST_FOR_EACH_SAFE (garbage, next, list_node, &garbage_list) { | |
1328 | dpif_port_del(backer->dpif, garbage->odp_port); | |
1329 | list_remove(&garbage->list_node); | |
1330 | free(garbage); | |
1331 | } | |
1332 | ||
1333 | shash_add(&all_dpif_backers, type, backer); | |
1334 | ||
40358701 | 1335 | error = dpif_recv_set(backer->dpif, backer->recv_set_enable); |
acf60855 JP |
1336 | if (error) { |
1337 | VLOG_ERR("failed to listen on datapath of type %s: %s", | |
1338 | type, strerror(error)); | |
1339 | close_dpif_backer(backer); | |
1340 | return error; | |
1341 | } | |
1342 | ||
1343 | return error; | |
1344 | } | |
1345 | ||
abe529af | 1346 | static int |
0f5f95a9 | 1347 | construct(struct ofproto *ofproto_) |
abe529af BP |
1348 | { |
1349 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
acf60855 | 1350 | struct shash_node *node, *next; |
91858960 | 1351 | int max_ports; |
abe529af BP |
1352 | int error; |
1353 | int i; | |
1354 | ||
acf60855 | 1355 | error = open_dpif_backer(ofproto->up.type, &ofproto->backer); |
abe529af | 1356 | if (error) { |
abe529af BP |
1357 | return error; |
1358 | } | |
1359 | ||
acf60855 | 1360 | max_ports = dpif_get_max_ports(ofproto->backer->dpif); |
91858960 BP |
1361 | ofproto_init_max_ports(ofproto_, MIN(max_ports, OFPP_MAX)); |
1362 | ||
abe529af BP |
1363 | ofproto->netflow = NULL; |
1364 | ofproto->sflow = NULL; | |
29089a54 | 1365 | ofproto->ipfix = NULL; |
21f7563c | 1366 | ofproto->stp = NULL; |
abe529af | 1367 | hmap_init(&ofproto->bundles); |
e764773c | 1368 | ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME); |
abe529af BP |
1369 | for (i = 0; i < MAX_MIRRORS; i++) { |
1370 | ofproto->mirrors[i] = NULL; | |
1371 | } | |
1372 | ofproto->has_bonded_bundles = false; | |
1373 | ||
abe529af | 1374 | hmap_init(&ofproto->facets); |
b0f7b9b5 | 1375 | hmap_init(&ofproto->subfacets); |
9d6ac44e | 1376 | ofproto->governor = NULL; |
4d2a0f39 | 1377 | ofproto->consistency_rl = LLONG_MIN; |
54a9cbc9 BP |
1378 | |
1379 | for (i = 0; i < N_TABLES; i++) { | |
1380 | struct table_dpif *table = &ofproto->tables[i]; | |
1381 | ||
1382 | table->catchall_table = NULL; | |
1383 | table->other_table = NULL; | |
1384 | table->basis = random_uint32(); | |
1385 | } | |
abe529af | 1386 | |
7ee20df1 BP |
1387 | list_init(&ofproto->completions); |
1388 | ||
abe529af BP |
1389 | ofproto_dpif_unixctl_init(); |
1390 | ||
ccb7c863 | 1391 | ofproto->has_mirrors = false; |
daff3353 EJ |
1392 | ofproto->has_bundle_action = false; |
1393 | ||
52a90c29 BP |
1394 | hmap_init(&ofproto->vlandev_map); |
1395 | hmap_init(&ofproto->realdev_vid_map); | |
1396 | ||
acf60855 | 1397 | sset_init(&ofproto->ports); |
0a740f48 | 1398 | sset_init(&ofproto->ghost_ports); |
acf60855 JP |
1399 | sset_init(&ofproto->port_poll_set); |
1400 | ofproto->port_poll_errno = 0; | |
1401 | ||
1402 | SHASH_FOR_EACH_SAFE (node, next, &init_ofp_ports) { | |
4f9e08a5 | 1403 | struct iface_hint *iface_hint = node->data; |
acf60855 JP |
1404 | |
1405 | if (!strcmp(iface_hint->br_name, ofproto->up.name)) { | |
1406 | /* Check if the datapath already has this port. */ | |
1407 | if (dpif_port_exists(ofproto->backer->dpif, node->name)) { | |
1408 | sset_add(&ofproto->ports, node->name); | |
1409 | } | |
1410 | ||
1411 | free(iface_hint->br_name); | |
1412 | free(iface_hint->br_type); | |
4f9e08a5 | 1413 | free(iface_hint); |
acf60855 JP |
1414 | shash_delete(&init_ofp_ports, node); |
1415 | } | |
1416 | } | |
e1b1d06a | 1417 | |
b44a10b7 BP |
1418 | hmap_insert(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node, |
1419 | hash_string(ofproto->up.name, 0)); | |
6527c598 | 1420 | memset(&ofproto->stats, 0, sizeof ofproto->stats); |
0f5f95a9 BP |
1421 | |
1422 | ofproto_init_tables(ofproto_, N_TABLES); | |
c57b2226 BP |
1423 | error = add_internal_flows(ofproto); |
1424 | ofproto->up.tables[TBL_INTERNAL].flags = OFTABLE_HIDDEN | OFTABLE_READONLY; | |
1425 | ||
735d7efb AZ |
1426 | ofproto->n_hit = 0; |
1427 | ofproto->n_missed = 0; | |
1428 | ||
655ab909 AZ |
1429 | ofproto->max_n_subfacet = 0; |
1430 | ofproto->created = time_msec(); | |
1431 | ofproto->last_minute = ofproto->created; | |
1432 | memset(&ofproto->hourly, 0, sizeof ofproto->hourly); | |
1433 | memset(&ofproto->daily, 0, sizeof ofproto->daily); | |
1434 | ofproto->subfacet_add_count = 0; | |
1435 | ofproto->subfacet_del_count = 0; | |
1436 | ofproto->total_subfacet_add_count = 0; | |
1437 | ofproto->total_subfacet_del_count = 0; | |
1438 | ofproto->total_subfacet_life_span = 0; | |
1439 | ofproto->total_subfacet_count = 0; | |
1440 | ofproto->n_update_stats = 0; | |
1441 | ||
c57b2226 BP |
1442 | return error; |
1443 | } | |
1444 | ||
1445 | static int | |
1446 | add_internal_flow(struct ofproto_dpif *ofproto, int id, | |
f25d0cf3 | 1447 | const struct ofpbuf *ofpacts, struct rule_dpif **rulep) |
c57b2226 BP |
1448 | { |
1449 | struct ofputil_flow_mod fm; | |
1450 | int error; | |
1451 | ||
81a76618 BP |
1452 | match_init_catchall(&fm.match); |
1453 | fm.priority = 0; | |
1454 | match_set_reg(&fm.match, 0, id); | |
623e1caf | 1455 | fm.new_cookie = htonll(0); |
c57b2226 BP |
1456 | fm.cookie = htonll(0); |
1457 | fm.cookie_mask = htonll(0); | |
1458 | fm.table_id = TBL_INTERNAL; | |
1459 | fm.command = OFPFC_ADD; | |
1460 | fm.idle_timeout = 0; | |
1461 | fm.hard_timeout = 0; | |
1462 | fm.buffer_id = 0; | |
1463 | fm.out_port = 0; | |
1464 | fm.flags = 0; | |
f25d0cf3 BP |
1465 | fm.ofpacts = ofpacts->data; |
1466 | fm.ofpacts_len = ofpacts->size; | |
c57b2226 BP |
1467 | |
1468 | error = ofproto_flow_mod(&ofproto->up, &fm); | |
1469 | if (error) { | |
1470 | VLOG_ERR_RL(&rl, "failed to add internal flow %d (%s)", | |
1471 | id, ofperr_to_string(error)); | |
1472 | return error; | |
1473 | } | |
1474 | ||
81a76618 | 1475 | *rulep = rule_dpif_lookup__(ofproto, &fm.match.flow, TBL_INTERNAL); |
cb22974d | 1476 | ovs_assert(*rulep != NULL); |
0f5f95a9 | 1477 | |
abe529af BP |
1478 | return 0; |
1479 | } | |
1480 | ||
c57b2226 BP |
1481 | static int |
1482 | add_internal_flows(struct ofproto_dpif *ofproto) | |
1483 | { | |
f25d0cf3 BP |
1484 | struct ofpact_controller *controller; |
1485 | uint64_t ofpacts_stub[128 / 8]; | |
1486 | struct ofpbuf ofpacts; | |
c57b2226 BP |
1487 | int error; |
1488 | int id; | |
1489 | ||
f25d0cf3 | 1490 | ofpbuf_use_stack(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
c57b2226 BP |
1491 | id = 1; |
1492 | ||
f25d0cf3 BP |
1493 | controller = ofpact_put_CONTROLLER(&ofpacts); |
1494 | controller->max_len = UINT16_MAX; | |
1495 | controller->controller_id = 0; | |
1496 | controller->reason = OFPR_NO_MATCH; | |
1497 | ofpact_pad(&ofpacts); | |
1498 | ||
1499 | error = add_internal_flow(ofproto, id++, &ofpacts, &ofproto->miss_rule); | |
c57b2226 BP |
1500 | if (error) { |
1501 | return error; | |
1502 | } | |
1503 | ||
f25d0cf3 BP |
1504 | ofpbuf_clear(&ofpacts); |
1505 | error = add_internal_flow(ofproto, id++, &ofpacts, | |
c57b2226 | 1506 | &ofproto->no_packet_in_rule); |
7fd51d39 BP |
1507 | if (error) { |
1508 | return error; | |
1509 | } | |
1510 | ||
1511 | error = add_internal_flow(ofproto, id++, &ofpacts, | |
1512 | &ofproto->drop_frags_rule); | |
c57b2226 BP |
1513 | return error; |
1514 | } | |
1515 | ||
7ee20df1 BP |
1516 | static void |
1517 | complete_operations(struct ofproto_dpif *ofproto) | |
1518 | { | |
1519 | struct dpif_completion *c, *next; | |
1520 | ||
1521 | LIST_FOR_EACH_SAFE (c, next, list_node, &ofproto->completions) { | |
1522 | ofoperation_complete(c->op, 0); | |
1523 | list_remove(&c->list_node); | |
1524 | free(c); | |
1525 | } | |
1526 | } | |
1527 | ||
abe529af BP |
1528 | static void |
1529 | destruct(struct ofproto *ofproto_) | |
1530 | { | |
1531 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
7ee20df1 | 1532 | struct rule_dpif *rule, *next_rule; |
d0918789 | 1533 | struct oftable *table; |
abe529af BP |
1534 | int i; |
1535 | ||
b44a10b7 | 1536 | hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node); |
7ee20df1 BP |
1537 | complete_operations(ofproto); |
1538 | ||
0697b5c3 BP |
1539 | OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) { |
1540 | struct cls_cursor cursor; | |
1541 | ||
d0918789 | 1542 | cls_cursor_init(&cursor, &table->cls, NULL); |
0697b5c3 BP |
1543 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) { |
1544 | ofproto_rule_destroy(&rule->up); | |
1545 | } | |
7ee20df1 BP |
1546 | } |
1547 | ||
abe529af BP |
1548 | for (i = 0; i < MAX_MIRRORS; i++) { |
1549 | mirror_destroy(ofproto->mirrors[i]); | |
1550 | } | |
1551 | ||
1552 | netflow_destroy(ofproto->netflow); | |
bae473fe | 1553 | dpif_sflow_destroy(ofproto->sflow); |
abe529af BP |
1554 | hmap_destroy(&ofproto->bundles); |
1555 | mac_learning_destroy(ofproto->ml); | |
1556 | ||
1557 | hmap_destroy(&ofproto->facets); | |
b0f7b9b5 | 1558 | hmap_destroy(&ofproto->subfacets); |
9d6ac44e | 1559 | governor_destroy(ofproto->governor); |
abe529af | 1560 | |
52a90c29 BP |
1561 | hmap_destroy(&ofproto->vlandev_map); |
1562 | hmap_destroy(&ofproto->realdev_vid_map); | |
1563 | ||
acf60855 | 1564 | sset_destroy(&ofproto->ports); |
0a740f48 | 1565 | sset_destroy(&ofproto->ghost_ports); |
acf60855 | 1566 | sset_destroy(&ofproto->port_poll_set); |
e1b1d06a | 1567 | |
acf60855 | 1568 | close_dpif_backer(ofproto->backer); |
abe529af BP |
1569 | } |
1570 | ||
1571 | static int | |
5fcc0d00 | 1572 | run_fast(struct ofproto *ofproto_) |
abe529af BP |
1573 | { |
1574 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
0aa66d6e | 1575 | struct ofport_dpif *ofport; |
abe529af | 1576 | |
40358701 GS |
1577 | /* Do not perform any periodic activity required by 'ofproto' while |
1578 | * waiting for flow restore to complete. */ | |
1579 | if (ofproto_get_flow_restore_wait()) { | |
1580 | return 0; | |
1581 | } | |
1582 | ||
0aa66d6e EJ |
1583 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { |
1584 | port_run_fast(ofport); | |
1585 | } | |
1586 | ||
5fcc0d00 BP |
1587 | return 0; |
1588 | } | |
1589 | ||
1590 | static int | |
1591 | run(struct ofproto *ofproto_) | |
1592 | { | |
1593 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1594 | struct ofport_dpif *ofport; | |
1595 | struct ofbundle *bundle; | |
1596 | int error; | |
1597 | ||
1598 | if (!clogged) { | |
1599 | complete_operations(ofproto); | |
1600 | } | |
5fcc0d00 | 1601 | |
40358701 GS |
1602 | /* Do not perform any periodic activity below required by 'ofproto' while |
1603 | * waiting for flow restore to complete. */ | |
1604 | if (ofproto_get_flow_restore_wait()) { | |
1605 | return 0; | |
1606 | } | |
1607 | ||
5fcc0d00 BP |
1608 | error = run_fast(ofproto_); |
1609 | if (error) { | |
1610 | return error; | |
abe529af BP |
1611 | } |
1612 | ||
abe529af | 1613 | if (ofproto->netflow) { |
6fca1ffb BP |
1614 | if (netflow_run(ofproto->netflow)) { |
1615 | send_netflow_active_timeouts(ofproto); | |
1616 | } | |
abe529af BP |
1617 | } |
1618 | if (ofproto->sflow) { | |
bae473fe | 1619 | dpif_sflow_run(ofproto->sflow); |
abe529af BP |
1620 | } |
1621 | ||
1622 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { | |
1623 | port_run(ofport); | |
1624 | } | |
1625 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
1626 | bundle_run(bundle); | |
1627 | } | |
1628 | ||
21f7563c | 1629 | stp_run(ofproto); |
2cc3c58e | 1630 | mac_learning_run(ofproto->ml, &ofproto->backer->revalidate_set); |
abe529af | 1631 | |
6814e51f | 1632 | /* Check the consistency of a random facet, to aid debugging. */ |
4d2a0f39 EJ |
1633 | if (time_msec() >= ofproto->consistency_rl |
1634 | && !hmap_is_empty(&ofproto->facets) | |
2cc3c58e | 1635 | && !ofproto->backer->need_revalidate) { |
6814e51f BP |
1636 | struct facet *facet; |
1637 | ||
4d2a0f39 EJ |
1638 | ofproto->consistency_rl = time_msec() + 250; |
1639 | ||
6814e51f BP |
1640 | facet = CONTAINER_OF(hmap_random_node(&ofproto->facets), |
1641 | struct facet, hmap_node); | |
2cc3c58e | 1642 | if (!tag_set_intersects(&ofproto->backer->revalidate_set, |
bbafd73b | 1643 | facet->xout.tags)) { |
6814e51f | 1644 | if (!facet_check_consistency(facet)) { |
2cc3c58e | 1645 | ofproto->backer->need_revalidate = REV_INCONSISTENCY; |
6814e51f BP |
1646 | } |
1647 | } | |
1648 | } | |
1649 | ||
9d6ac44e BP |
1650 | if (ofproto->governor) { |
1651 | size_t n_subfacets; | |
1652 | ||
1653 | governor_run(ofproto->governor); | |
1654 | ||
1655 | /* If the governor has shrunk to its minimum size and the number of | |
1656 | * subfacets has dwindled, then drop the governor entirely. | |
1657 | * | |
1658 | * For hysteresis, the number of subfacets to drop the governor is | |
1659 | * smaller than the number needed to trigger its creation. */ | |
1660 | n_subfacets = hmap_count(&ofproto->subfacets); | |
1661 | if (n_subfacets * 4 < ofproto->up.flow_eviction_threshold | |
1662 | && governor_is_idle(ofproto->governor)) { | |
1663 | governor_destroy(ofproto->governor); | |
1664 | ofproto->governor = NULL; | |
1665 | } | |
1666 | } | |
1667 | ||
abe529af BP |
1668 | return 0; |
1669 | } | |
1670 | ||
1671 | static void | |
1672 | wait(struct ofproto *ofproto_) | |
1673 | { | |
1674 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1675 | struct ofport_dpif *ofport; | |
1676 | struct ofbundle *bundle; | |
1677 | ||
7ee20df1 BP |
1678 | if (!clogged && !list_is_empty(&ofproto->completions)) { |
1679 | poll_immediate_wake(); | |
1680 | } | |
1681 | ||
40358701 GS |
1682 | if (ofproto_get_flow_restore_wait()) { |
1683 | return; | |
1684 | } | |
1685 | ||
acf60855 JP |
1686 | dpif_wait(ofproto->backer->dpif); |
1687 | dpif_recv_wait(ofproto->backer->dpif); | |
abe529af | 1688 | if (ofproto->sflow) { |
bae473fe | 1689 | dpif_sflow_wait(ofproto->sflow); |
abe529af | 1690 | } |
2cc3c58e | 1691 | if (!tag_set_is_empty(&ofproto->backer->revalidate_set)) { |
abe529af BP |
1692 | poll_immediate_wake(); |
1693 | } | |
1694 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { | |
1695 | port_wait(ofport); | |
1696 | } | |
1697 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
1698 | bundle_wait(bundle); | |
1699 | } | |
6fca1ffb BP |
1700 | if (ofproto->netflow) { |
1701 | netflow_wait(ofproto->netflow); | |
1702 | } | |
1c313b88 | 1703 | mac_learning_wait(ofproto->ml); |
21f7563c | 1704 | stp_wait(ofproto); |
2cc3c58e | 1705 | if (ofproto->backer->need_revalidate) { |
abe529af BP |
1706 | /* Shouldn't happen, but if it does just go around again. */ |
1707 | VLOG_DBG_RL(&rl, "need revalidate in ofproto_wait_cb()"); | |
1708 | poll_immediate_wake(); | |
abe529af | 1709 | } |
9d6ac44e BP |
1710 | if (ofproto->governor) { |
1711 | governor_wait(ofproto->governor); | |
1712 | } | |
abe529af BP |
1713 | } |
1714 | ||
0d085684 BP |
1715 | static void |
1716 | get_memory_usage(const struct ofproto *ofproto_, struct simap *usage) | |
1717 | { | |
1718 | const struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1719 | ||
1720 | simap_increase(usage, "facets", hmap_count(&ofproto->facets)); | |
1721 | simap_increase(usage, "subfacets", hmap_count(&ofproto->subfacets)); | |
1722 | } | |
1723 | ||
abe529af BP |
1724 | static void |
1725 | flush(struct ofproto *ofproto_) | |
1726 | { | |
1727 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
acf60855 JP |
1728 | struct subfacet *subfacet, *next_subfacet; |
1729 | struct subfacet *batch[SUBFACET_DESTROY_MAX_BATCH]; | |
1730 | int n_batch; | |
b0f7b9b5 | 1731 | |
acf60855 JP |
1732 | n_batch = 0; |
1733 | HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node, | |
1734 | &ofproto->subfacets) { | |
1735 | if (subfacet->path != SF_NOT_INSTALLED) { | |
1736 | batch[n_batch++] = subfacet; | |
1737 | if (n_batch >= SUBFACET_DESTROY_MAX_BATCH) { | |
1738 | subfacet_destroy_batch(ofproto, batch, n_batch); | |
1739 | n_batch = 0; | |
1740 | } | |
1741 | } else { | |
1742 | subfacet_destroy(subfacet); | |
b0f7b9b5 | 1743 | } |
abe529af | 1744 | } |
acf60855 JP |
1745 | |
1746 | if (n_batch > 0) { | |
1747 | subfacet_destroy_batch(ofproto, batch, n_batch); | |
1748 | } | |
abe529af BP |
1749 | } |
1750 | ||
6c1491fb BP |
1751 | static void |
1752 | get_features(struct ofproto *ofproto_ OVS_UNUSED, | |
9e1fd49b | 1753 | bool *arp_match_ip, enum ofputil_action_bitmap *actions) |
6c1491fb BP |
1754 | { |
1755 | *arp_match_ip = true; | |
9e1fd49b BP |
1756 | *actions = (OFPUTIL_A_OUTPUT | |
1757 | OFPUTIL_A_SET_VLAN_VID | | |
1758 | OFPUTIL_A_SET_VLAN_PCP | | |
1759 | OFPUTIL_A_STRIP_VLAN | | |
1760 | OFPUTIL_A_SET_DL_SRC | | |
1761 | OFPUTIL_A_SET_DL_DST | | |
1762 | OFPUTIL_A_SET_NW_SRC | | |
1763 | OFPUTIL_A_SET_NW_DST | | |
1764 | OFPUTIL_A_SET_NW_TOS | | |
1765 | OFPUTIL_A_SET_TP_SRC | | |
1766 | OFPUTIL_A_SET_TP_DST | | |
1767 | OFPUTIL_A_ENQUEUE); | |
6c1491fb BP |
1768 | } |
1769 | ||
1770 | static void | |
307975da | 1771 | get_tables(struct ofproto *ofproto_, struct ofp12_table_stats *ots) |
6c1491fb BP |
1772 | { |
1773 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
a8d9304d | 1774 | struct dpif_dp_stats s; |
7fd51d39 | 1775 | uint64_t n_miss, n_no_pkt_in, n_bytes, n_dropped_frags; |
7e741ffb | 1776 | uint64_t n_lookup; |
6c1491fb BP |
1777 | |
1778 | strcpy(ots->name, "classifier"); | |
1779 | ||
acf60855 | 1780 | dpif_get_dp_stats(ofproto->backer->dpif, &s); |
7e741ffb JG |
1781 | rule_get_stats(&ofproto->miss_rule->up, &n_miss, &n_bytes); |
1782 | rule_get_stats(&ofproto->no_packet_in_rule->up, &n_no_pkt_in, &n_bytes); | |
7fd51d39 | 1783 | rule_get_stats(&ofproto->drop_frags_rule->up, &n_dropped_frags, &n_bytes); |
acf60855 | 1784 | |
7fd51d39 | 1785 | n_lookup = s.n_hit + s.n_missed - n_dropped_frags; |
7e741ffb JG |
1786 | ots->lookup_count = htonll(n_lookup); |
1787 | ots->matched_count = htonll(n_lookup - n_miss - n_no_pkt_in); | |
6c1491fb BP |
1788 | } |
1789 | ||
abe529af BP |
1790 | static struct ofport * |
1791 | port_alloc(void) | |
1792 | { | |
1793 | struct ofport_dpif *port = xmalloc(sizeof *port); | |
1794 | return &port->up; | |
1795 | } | |
1796 | ||
1797 | static void | |
1798 | port_dealloc(struct ofport *port_) | |
1799 | { | |
1800 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1801 | free(port); | |
1802 | } | |
1803 | ||
1804 | static int | |
1805 | port_construct(struct ofport *port_) | |
1806 | { | |
1807 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1808 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
b9ad7294 | 1809 | const struct netdev *netdev = port->up.netdev; |
e1b1d06a JP |
1810 | struct dpif_port dpif_port; |
1811 | int error; | |
abe529af | 1812 | |
2cc3c58e | 1813 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
1814 | port->bundle = NULL; |
1815 | port->cfm = NULL; | |
ccc09689 | 1816 | port->bfd = NULL; |
abe529af | 1817 | port->tag = tag_create_random(); |
d5ffa7f2 | 1818 | port->may_enable = true; |
21f7563c JP |
1819 | port->stp_port = NULL; |
1820 | port->stp_state = STP_DISABLED; | |
b9ad7294 | 1821 | port->tnl_port = NULL; |
8b36f51e | 1822 | hmap_init(&port->priorities); |
52a90c29 BP |
1823 | port->realdev_ofp_port = 0; |
1824 | port->vlandev_vid = 0; | |
b9ad7294 | 1825 | port->carrier_seq = netdev_get_carrier_resets(netdev); |
abe529af | 1826 | |
b9ad7294 | 1827 | if (netdev_vport_is_patch(netdev)) { |
743cea45 NM |
1828 | /* By bailing out here, we don't submit the port to the sFlow module |
1829 | * to be considered for counter polling export. This is correct | |
1830 | * because the patch port represents an interface that sFlow considers | |
1831 | * to be "internal" to the switch as a whole, and therefore not an | |
1832 | * candidate for counter polling. */ | |
0a740f48 EJ |
1833 | port->odp_port = OVSP_NONE; |
1834 | return 0; | |
1835 | } | |
1836 | ||
acf60855 | 1837 | error = dpif_port_query_by_name(ofproto->backer->dpif, |
b9ad7294 | 1838 | netdev_vport_get_dpif_port(netdev), |
e1b1d06a JP |
1839 | &dpif_port); |
1840 | if (error) { | |
1841 | return error; | |
1842 | } | |
1843 | ||
1844 | port->odp_port = dpif_port.port_no; | |
1845 | ||
b9ad7294 EJ |
1846 | if (netdev_get_tunnel_config(netdev)) { |
1847 | port->tnl_port = tnl_port_add(&port->up, port->odp_port); | |
1848 | } else { | |
1849 | /* Sanity-check that a mapping doesn't already exist. This | |
1850 | * shouldn't happen for non-tunnel ports. */ | |
1851 | if (odp_port_to_ofp_port(ofproto, port->odp_port) != OFPP_NONE) { | |
1852 | VLOG_ERR("port %s already has an OpenFlow port number", | |
1853 | dpif_port.name); | |
da78d43d | 1854 | dpif_port_destroy(&dpif_port); |
b9ad7294 EJ |
1855 | return EBUSY; |
1856 | } | |
e1b1d06a | 1857 | |
b9ad7294 EJ |
1858 | hmap_insert(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node, |
1859 | hash_int(port->odp_port, 0)); | |
1860 | } | |
da78d43d | 1861 | dpif_port_destroy(&dpif_port); |
e1b1d06a | 1862 | |
abe529af | 1863 | if (ofproto->sflow) { |
e1b1d06a | 1864 | dpif_sflow_add_port(ofproto->sflow, port_, port->odp_port); |
abe529af BP |
1865 | } |
1866 | ||
1867 | return 0; | |
1868 | } | |
1869 | ||
1870 | static void | |
1871 | port_destruct(struct ofport *port_) | |
1872 | { | |
1873 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1874 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
b9ad7294 | 1875 | const char *dp_port_name = netdev_vport_get_dpif_port(port->up.netdev); |
02f8d646 | 1876 | const char *devname = netdev_get_name(port->up.netdev); |
abe529af | 1877 | |
a614d823 | 1878 | if (dpif_port_exists(ofproto->backer->dpif, dp_port_name)) { |
acf60855 JP |
1879 | /* The underlying device is still there, so delete it. This |
1880 | * happens when the ofproto is being destroyed, since the caller | |
1881 | * assumes that removal of attached ports will happen as part of | |
1882 | * destruction. */ | |
a614d823 KM |
1883 | if (!port->tnl_port) { |
1884 | dpif_port_del(ofproto->backer->dpif, port->odp_port); | |
1885 | } | |
1886 | ofproto->backer->need_revalidate = REV_RECONFIGURE; | |
acf60855 JP |
1887 | } |
1888 | ||
b9ad7294 | 1889 | if (port->odp_port != OVSP_NONE && !port->tnl_port) { |
0a740f48 EJ |
1890 | hmap_remove(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node); |
1891 | } | |
1892 | ||
b9ad7294 | 1893 | tnl_port_del(port->tnl_port); |
02f8d646 | 1894 | sset_find_and_delete(&ofproto->ports, devname); |
0a740f48 | 1895 | sset_find_and_delete(&ofproto->ghost_ports, devname); |
2cc3c58e | 1896 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af | 1897 | bundle_remove(port_); |
a5610457 | 1898 | set_cfm(port_, NULL); |
8aee94b6 | 1899 | set_bfd(port_, NULL); |
abe529af | 1900 | if (ofproto->sflow) { |
bae473fe | 1901 | dpif_sflow_del_port(ofproto->sflow, port->odp_port); |
abe529af | 1902 | } |
8b36f51e EJ |
1903 | |
1904 | ofport_clear_priorities(port); | |
1905 | hmap_destroy(&port->priorities); | |
abe529af BP |
1906 | } |
1907 | ||
1908 | static void | |
1909 | port_modified(struct ofport *port_) | |
1910 | { | |
1911 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1912 | ||
1913 | if (port->bundle && port->bundle->bond) { | |
1914 | bond_slave_set_netdev(port->bundle->bond, port, port->up.netdev); | |
1915 | } | |
9d46b444 EJ |
1916 | |
1917 | if (port->cfm) { | |
1918 | cfm_set_netdev(port->cfm, port->up.netdev); | |
1919 | } | |
abe529af BP |
1920 | } |
1921 | ||
1922 | static void | |
9e1fd49b | 1923 | port_reconfigured(struct ofport *port_, enum ofputil_port_config old_config) |
abe529af BP |
1924 | { |
1925 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1926 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
9e1fd49b | 1927 | enum ofputil_port_config changed = old_config ^ port->up.pp.config; |
abe529af | 1928 | |
9e1fd49b | 1929 | if (changed & (OFPUTIL_PC_NO_RECV | OFPUTIL_PC_NO_RECV_STP | |
c57b2226 BP |
1930 | OFPUTIL_PC_NO_FWD | OFPUTIL_PC_NO_FLOOD | |
1931 | OFPUTIL_PC_NO_PACKET_IN)) { | |
2cc3c58e | 1932 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
7bde8dd8 | 1933 | |
9e1fd49b | 1934 | if (changed & OFPUTIL_PC_NO_FLOOD && port->bundle) { |
7bde8dd8 JP |
1935 | bundle_update(port->bundle); |
1936 | } | |
abe529af BP |
1937 | } |
1938 | } | |
1939 | ||
1940 | static int | |
1941 | set_sflow(struct ofproto *ofproto_, | |
1942 | const struct ofproto_sflow_options *sflow_options) | |
1943 | { | |
1944 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
bae473fe | 1945 | struct dpif_sflow *ds = ofproto->sflow; |
6ff686f2 | 1946 | |
abe529af | 1947 | if (sflow_options) { |
bae473fe | 1948 | if (!ds) { |
abe529af BP |
1949 | struct ofport_dpif *ofport; |
1950 | ||
4213f19d | 1951 | ds = ofproto->sflow = dpif_sflow_create(); |
abe529af | 1952 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { |
e1b1d06a | 1953 | dpif_sflow_add_port(ds, &ofport->up, ofport->odp_port); |
abe529af | 1954 | } |
2cc3c58e | 1955 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af | 1956 | } |
bae473fe | 1957 | dpif_sflow_set_options(ds, sflow_options); |
abe529af | 1958 | } else { |
6ff686f2 PS |
1959 | if (ds) { |
1960 | dpif_sflow_destroy(ds); | |
2cc3c58e | 1961 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
6ff686f2 PS |
1962 | ofproto->sflow = NULL; |
1963 | } | |
abe529af BP |
1964 | } |
1965 | return 0; | |
1966 | } | |
1967 | ||
29089a54 RL |
1968 | static int |
1969 | set_ipfix( | |
1970 | struct ofproto *ofproto_, | |
1971 | const struct ofproto_ipfix_bridge_exporter_options *bridge_exporter_options, | |
1972 | const struct ofproto_ipfix_flow_exporter_options *flow_exporters_options, | |
1973 | size_t n_flow_exporters_options) | |
1974 | { | |
1975 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1976 | struct dpif_ipfix *di = ofproto->ipfix; | |
1977 | ||
1978 | if (bridge_exporter_options || flow_exporters_options) { | |
1979 | if (!di) { | |
1980 | di = ofproto->ipfix = dpif_ipfix_create(); | |
1981 | } | |
1982 | dpif_ipfix_set_options( | |
1983 | di, bridge_exporter_options, flow_exporters_options, | |
1984 | n_flow_exporters_options); | |
1985 | } else { | |
1986 | if (di) { | |
1987 | dpif_ipfix_destroy(di); | |
1988 | ofproto->ipfix = NULL; | |
1989 | } | |
1990 | } | |
1991 | return 0; | |
1992 | } | |
1993 | ||
abe529af | 1994 | static int |
a5610457 | 1995 | set_cfm(struct ofport *ofport_, const struct cfm_settings *s) |
abe529af BP |
1996 | { |
1997 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1998 | int error; | |
1999 | ||
a5610457 | 2000 | if (!s) { |
abe529af BP |
2001 | error = 0; |
2002 | } else { | |
2003 | if (!ofport->cfm) { | |
8c977421 EJ |
2004 | struct ofproto_dpif *ofproto; |
2005 | ||
2006 | ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2cc3c58e | 2007 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
90967e95 | 2008 | ofport->cfm = cfm_create(ofport->up.netdev); |
abe529af BP |
2009 | } |
2010 | ||
a5610457 | 2011 | if (cfm_configure(ofport->cfm, s)) { |
abe529af BP |
2012 | return 0; |
2013 | } | |
2014 | ||
2015 | error = EINVAL; | |
2016 | } | |
2017 | cfm_destroy(ofport->cfm); | |
2018 | ofport->cfm = NULL; | |
2019 | return error; | |
2020 | } | |
2021 | ||
9a9e3786 BP |
2022 | static bool |
2023 | get_cfm_status(const struct ofport *ofport_, | |
2024 | struct ofproto_cfm_status *status) | |
1de11730 EJ |
2025 | { |
2026 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2027 | ||
2028 | if (ofport->cfm) { | |
9a9e3786 BP |
2029 | status->faults = cfm_get_fault(ofport->cfm); |
2030 | status->remote_opstate = cfm_get_opup(ofport->cfm); | |
2031 | status->health = cfm_get_health(ofport->cfm); | |
2032 | cfm_get_remote_mpids(ofport->cfm, &status->rmps, &status->n_rmps); | |
2033 | return true; | |
1de11730 | 2034 | } else { |
9a9e3786 | 2035 | return false; |
1de11730 EJ |
2036 | } |
2037 | } | |
ccc09689 EJ |
2038 | |
2039 | static int | |
2040 | set_bfd(struct ofport *ofport_, const struct smap *cfg) | |
2041 | { | |
2042 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto); | |
2043 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2044 | struct bfd *old; | |
2045 | ||
2046 | old = ofport->bfd; | |
2047 | ofport->bfd = bfd_configure(old, netdev_get_name(ofport->up.netdev), cfg); | |
2048 | if (ofport->bfd != old) { | |
2049 | ofproto->backer->need_revalidate = REV_RECONFIGURE; | |
2050 | } | |
2051 | ||
2052 | return 0; | |
2053 | } | |
2054 | ||
2055 | static int | |
2056 | get_bfd_status(struct ofport *ofport_, struct smap *smap) | |
2057 | { | |
2058 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2059 | ||
2060 | if (ofport->bfd) { | |
2061 | bfd_get_status(ofport->bfd, smap); | |
2062 | return 0; | |
2063 | } else { | |
2064 | return ENOENT; | |
2065 | } | |
2066 | } | |
abe529af | 2067 | \f |
21f7563c JP |
2068 | /* Spanning Tree. */ |
2069 | ||
2070 | static void | |
2071 | send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_) | |
2072 | { | |
2073 | struct ofproto_dpif *ofproto = ofproto_; | |
2074 | struct stp_port *sp = stp_get_port(ofproto->stp, port_num); | |
2075 | struct ofport_dpif *ofport; | |
2076 | ||
2077 | ofport = stp_port_get_aux(sp); | |
2078 | if (!ofport) { | |
2079 | VLOG_WARN_RL(&rl, "%s: cannot send BPDU on unknown port %d", | |
2080 | ofproto->up.name, port_num); | |
2081 | } else { | |
2082 | struct eth_header *eth = pkt->l2; | |
2083 | ||
2084 | netdev_get_etheraddr(ofport->up.netdev, eth->eth_src); | |
2085 | if (eth_addr_is_zero(eth->eth_src)) { | |
2086 | VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d " | |
2087 | "with unknown MAC", ofproto->up.name, port_num); | |
2088 | } else { | |
97d6520b | 2089 | send_packet(ofport, pkt); |
21f7563c JP |
2090 | } |
2091 | } | |
2092 | ofpbuf_delete(pkt); | |
2093 | } | |
2094 | ||
2095 | /* Configures STP on 'ofproto_' using the settings defined in 's'. */ | |
2096 | static int | |
2097 | set_stp(struct ofproto *ofproto_, const struct ofproto_stp_settings *s) | |
2098 | { | |
2099 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2100 | ||
2101 | /* Only revalidate flows if the configuration changed. */ | |
2102 | if (!s != !ofproto->stp) { | |
2cc3c58e | 2103 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
21f7563c JP |
2104 | } |
2105 | ||
2106 | if (s) { | |
2107 | if (!ofproto->stp) { | |
2108 | ofproto->stp = stp_create(ofproto_->name, s->system_id, | |
2109 | send_bpdu_cb, ofproto); | |
2110 | ofproto->stp_last_tick = time_msec(); | |
2111 | } | |
2112 | ||
2113 | stp_set_bridge_id(ofproto->stp, s->system_id); | |
2114 | stp_set_bridge_priority(ofproto->stp, s->priority); | |
2115 | stp_set_hello_time(ofproto->stp, s->hello_time); | |
2116 | stp_set_max_age(ofproto->stp, s->max_age); | |
2117 | stp_set_forward_delay(ofproto->stp, s->fwd_delay); | |
2118 | } else { | |
851bf71d EJ |
2119 | struct ofport *ofport; |
2120 | ||
2121 | HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) { | |
2122 | set_stp_port(ofport, NULL); | |
2123 | } | |
2124 | ||
21f7563c JP |
2125 | stp_destroy(ofproto->stp); |
2126 | ofproto->stp = NULL; | |
2127 | } | |
2128 | ||
2129 | return 0; | |
2130 | } | |
2131 | ||
2132 | static int | |
2133 | get_stp_status(struct ofproto *ofproto_, struct ofproto_stp_status *s) | |
2134 | { | |
2135 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2136 | ||
2137 | if (ofproto->stp) { | |
2138 | s->enabled = true; | |
2139 | s->bridge_id = stp_get_bridge_id(ofproto->stp); | |
2140 | s->designated_root = stp_get_designated_root(ofproto->stp); | |
2141 | s->root_path_cost = stp_get_root_path_cost(ofproto->stp); | |
2142 | } else { | |
2143 | s->enabled = false; | |
2144 | } | |
2145 | ||
2146 | return 0; | |
2147 | } | |
2148 | ||
2149 | static void | |
2150 | update_stp_port_state(struct ofport_dpif *ofport) | |
2151 | { | |
2152 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2153 | enum stp_state state; | |
2154 | ||
2155 | /* Figure out new state. */ | |
2156 | state = ofport->stp_port ? stp_port_get_state(ofport->stp_port) | |
2157 | : STP_DISABLED; | |
2158 | ||
2159 | /* Update state. */ | |
2160 | if (ofport->stp_state != state) { | |
9e1fd49b | 2161 | enum ofputil_port_state of_state; |
21f7563c JP |
2162 | bool fwd_change; |
2163 | ||
2164 | VLOG_DBG_RL(&rl, "port %s: STP state changed from %s to %s", | |
2165 | netdev_get_name(ofport->up.netdev), | |
2166 | stp_state_name(ofport->stp_state), | |
2167 | stp_state_name(state)); | |
2168 | if (stp_learn_in_state(ofport->stp_state) | |
2169 | != stp_learn_in_state(state)) { | |
2170 | /* xxx Learning action flows should also be flushed. */ | |
2cc3c58e EJ |
2171 | mac_learning_flush(ofproto->ml, |
2172 | &ofproto->backer->revalidate_set); | |
21f7563c JP |
2173 | } |
2174 | fwd_change = stp_forward_in_state(ofport->stp_state) | |
2175 | != stp_forward_in_state(state); | |
2176 | ||
2cc3c58e | 2177 | ofproto->backer->need_revalidate = REV_STP; |
21f7563c JP |
2178 | ofport->stp_state = state; |
2179 | ofport->stp_state_entered = time_msec(); | |
2180 | ||
b308140a | 2181 | if (fwd_change && ofport->bundle) { |
21f7563c JP |
2182 | bundle_update(ofport->bundle); |
2183 | } | |
2184 | ||
2185 | /* Update the STP state bits in the OpenFlow port description. */ | |
9e1fd49b BP |
2186 | of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK; |
2187 | of_state |= (state == STP_LISTENING ? OFPUTIL_PS_STP_LISTEN | |
2188 | : state == STP_LEARNING ? OFPUTIL_PS_STP_LEARN | |
2189 | : state == STP_FORWARDING ? OFPUTIL_PS_STP_FORWARD | |
2190 | : state == STP_BLOCKING ? OFPUTIL_PS_STP_BLOCK | |
2191 | : 0); | |
21f7563c JP |
2192 | ofproto_port_set_state(&ofport->up, of_state); |
2193 | } | |
2194 | } | |
2195 | ||
2196 | /* Configures STP on 'ofport_' using the settings defined in 's'. The | |
2197 | * caller is responsible for assigning STP port numbers and ensuring | |
2198 | * there are no duplicates. */ | |
2199 | static int | |
2200 | set_stp_port(struct ofport *ofport_, | |
2201 | const struct ofproto_port_stp_settings *s) | |
2202 | { | |
2203 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2204 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2205 | struct stp_port *sp = ofport->stp_port; | |
2206 | ||
2207 | if (!s || !s->enable) { | |
2208 | if (sp) { | |
2209 | ofport->stp_port = NULL; | |
2210 | stp_port_disable(sp); | |
ecd12731 | 2211 | update_stp_port_state(ofport); |
21f7563c JP |
2212 | } |
2213 | return 0; | |
2214 | } else if (sp && stp_port_no(sp) != s->port_num | |
2215 | && ofport == stp_port_get_aux(sp)) { | |
2216 | /* The port-id changed, so disable the old one if it's not | |
2217 | * already in use by another port. */ | |
2218 | stp_port_disable(sp); | |
2219 | } | |
2220 | ||
2221 | sp = ofport->stp_port = stp_get_port(ofproto->stp, s->port_num); | |
2222 | stp_port_enable(sp); | |
2223 | ||
2224 | stp_port_set_aux(sp, ofport); | |
2225 | stp_port_set_priority(sp, s->priority); | |
2226 | stp_port_set_path_cost(sp, s->path_cost); | |
2227 | ||
2228 | update_stp_port_state(ofport); | |
2229 | ||
2230 | return 0; | |
2231 | } | |
2232 | ||
2233 | static int | |
2234 | get_stp_port_status(struct ofport *ofport_, | |
2235 | struct ofproto_port_stp_status *s) | |
2236 | { | |
2237 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2238 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2239 | struct stp_port *sp = ofport->stp_port; | |
2240 | ||
2241 | if (!ofproto->stp || !sp) { | |
2242 | s->enabled = false; | |
2243 | return 0; | |
2244 | } | |
2245 | ||
2246 | s->enabled = true; | |
2247 | s->port_id = stp_port_get_id(sp); | |
2248 | s->state = stp_port_get_state(sp); | |
2249 | s->sec_in_state = (time_msec() - ofport->stp_state_entered) / 1000; | |
2250 | s->role = stp_port_get_role(sp); | |
80740385 | 2251 | stp_port_get_counts(sp, &s->tx_count, &s->rx_count, &s->error_count); |
21f7563c JP |
2252 | |
2253 | return 0; | |
2254 | } | |
2255 | ||
2256 | static void | |
2257 | stp_run(struct ofproto_dpif *ofproto) | |
2258 | { | |
2259 | if (ofproto->stp) { | |
2260 | long long int now = time_msec(); | |
2261 | long long int elapsed = now - ofproto->stp_last_tick; | |
2262 | struct stp_port *sp; | |
2263 | ||
2264 | if (elapsed > 0) { | |
2265 | stp_tick(ofproto->stp, MIN(INT_MAX, elapsed)); | |
2266 | ofproto->stp_last_tick = now; | |
2267 | } | |
2268 | while (stp_get_changed_port(ofproto->stp, &sp)) { | |
2269 | struct ofport_dpif *ofport = stp_port_get_aux(sp); | |
2270 | ||
2271 | if (ofport) { | |
2272 | update_stp_port_state(ofport); | |
2273 | } | |
2274 | } | |
6ae50723 EJ |
2275 | |
2276 | if (stp_check_and_reset_fdb_flush(ofproto->stp)) { | |
2cc3c58e | 2277 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); |
6ae50723 | 2278 | } |
21f7563c JP |
2279 | } |
2280 | } | |
2281 | ||
2282 | static void | |
2283 | stp_wait(struct ofproto_dpif *ofproto) | |
2284 | { | |
2285 | if (ofproto->stp) { | |
2286 | poll_timer_wait(1000); | |
2287 | } | |
2288 | } | |
2289 | ||
2290 | /* Returns true if STP should process 'flow'. */ | |
2291 | static bool | |
2292 | stp_should_process_flow(const struct flow *flow) | |
2293 | { | |
2294 | return eth_addr_equals(flow->dl_dst, eth_addr_stp); | |
2295 | } | |
2296 | ||
2297 | static void | |
2298 | stp_process_packet(const struct ofport_dpif *ofport, | |
2299 | const struct ofpbuf *packet) | |
2300 | { | |
2301 | struct ofpbuf payload = *packet; | |
2302 | struct eth_header *eth = payload.data; | |
2303 | struct stp_port *sp = ofport->stp_port; | |
2304 | ||
2305 | /* Sink packets on ports that have STP disabled when the bridge has | |
2306 | * STP enabled. */ | |
2307 | if (!sp || stp_port_get_state(sp) == STP_DISABLED) { | |
2308 | return; | |
2309 | } | |
2310 | ||
2311 | /* Trim off padding on payload. */ | |
c573540b BP |
2312 | if (payload.size > ntohs(eth->eth_type) + ETH_HEADER_LEN) { |
2313 | payload.size = ntohs(eth->eth_type) + ETH_HEADER_LEN; | |
21f7563c JP |
2314 | } |
2315 | ||
2316 | if (ofpbuf_try_pull(&payload, ETH_HEADER_LEN + LLC_HEADER_LEN)) { | |
2317 | stp_received_bpdu(sp, payload.data, payload.size); | |
2318 | } | |
2319 | } | |
2320 | \f | |
8b36f51e EJ |
2321 | static struct priority_to_dscp * |
2322 | get_priority(const struct ofport_dpif *ofport, uint32_t priority) | |
2323 | { | |
2324 | struct priority_to_dscp *pdscp; | |
2325 | uint32_t hash; | |
2326 | ||
2327 | hash = hash_int(priority, 0); | |
2328 | HMAP_FOR_EACH_IN_BUCKET (pdscp, hmap_node, hash, &ofport->priorities) { | |
2329 | if (pdscp->priority == priority) { | |
2330 | return pdscp; | |
2331 | } | |
2332 | } | |
2333 | return NULL; | |
2334 | } | |
2335 | ||
2336 | static void | |
2337 | ofport_clear_priorities(struct ofport_dpif *ofport) | |
2338 | { | |
2339 | struct priority_to_dscp *pdscp, *next; | |
2340 | ||
2341 | HMAP_FOR_EACH_SAFE (pdscp, next, hmap_node, &ofport->priorities) { | |
2342 | hmap_remove(&ofport->priorities, &pdscp->hmap_node); | |
2343 | free(pdscp); | |
2344 | } | |
2345 | } | |
2346 | ||
2347 | static int | |
2348 | set_queues(struct ofport *ofport_, | |
2349 | const struct ofproto_port_queue *qdscp_list, | |
2350 | size_t n_qdscp) | |
2351 | { | |
2352 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2353 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2354 | struct hmap new = HMAP_INITIALIZER(&new); | |
2355 | size_t i; | |
2356 | ||
2357 | for (i = 0; i < n_qdscp; i++) { | |
2358 | struct priority_to_dscp *pdscp; | |
2359 | uint32_t priority; | |
2360 | uint8_t dscp; | |
2361 | ||
2362 | dscp = (qdscp_list[i].dscp << 2) & IP_DSCP_MASK; | |
acf60855 | 2363 | if (dpif_queue_to_priority(ofproto->backer->dpif, qdscp_list[i].queue, |
8b36f51e EJ |
2364 | &priority)) { |
2365 | continue; | |
2366 | } | |
2367 | ||
2368 | pdscp = get_priority(ofport, priority); | |
2369 | if (pdscp) { | |
2370 | hmap_remove(&ofport->priorities, &pdscp->hmap_node); | |
2371 | } else { | |
2372 | pdscp = xmalloc(sizeof *pdscp); | |
2373 | pdscp->priority = priority; | |
2374 | pdscp->dscp = dscp; | |
2cc3c58e | 2375 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
8b36f51e EJ |
2376 | } |
2377 | ||
2378 | if (pdscp->dscp != dscp) { | |
2379 | pdscp->dscp = dscp; | |
2cc3c58e | 2380 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
8b36f51e EJ |
2381 | } |
2382 | ||
2383 | hmap_insert(&new, &pdscp->hmap_node, hash_int(pdscp->priority, 0)); | |
2384 | } | |
2385 | ||
2386 | if (!hmap_is_empty(&ofport->priorities)) { | |
2387 | ofport_clear_priorities(ofport); | |
2cc3c58e | 2388 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
8b36f51e EJ |
2389 | } |
2390 | ||
2391 | hmap_swap(&new, &ofport->priorities); | |
2392 | hmap_destroy(&new); | |
2393 | ||
2394 | return 0; | |
2395 | } | |
2396 | \f | |
abe529af BP |
2397 | /* Bundles. */ |
2398 | ||
b44a10b7 BP |
2399 | /* Expires all MAC learning entries associated with 'bundle' and forces its |
2400 | * ofproto to revalidate every flow. | |
2401 | * | |
2402 | * Normally MAC learning entries are removed only from the ofproto associated | |
2403 | * with 'bundle', but if 'all_ofprotos' is true, then the MAC learning entries | |
2404 | * are removed from every ofproto. When patch ports and SLB bonds are in use | |
2405 | * and a VM migration happens and the gratuitous ARPs are somehow lost, this | |
2406 | * avoids a MAC_ENTRY_IDLE_TIME delay before the migrated VM can communicate | |
2407 | * with the host from which it migrated. */ | |
abe529af | 2408 | static void |
b44a10b7 | 2409 | bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos) |
abe529af BP |
2410 | { |
2411 | struct ofproto_dpif *ofproto = bundle->ofproto; | |
2412 | struct mac_learning *ml = ofproto->ml; | |
2413 | struct mac_entry *mac, *next_mac; | |
2414 | ||
2cc3c58e | 2415 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2416 | LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) { |
2417 | if (mac->port.p == bundle) { | |
b44a10b7 BP |
2418 | if (all_ofprotos) { |
2419 | struct ofproto_dpif *o; | |
2420 | ||
2421 | HMAP_FOR_EACH (o, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
2422 | if (o != ofproto) { | |
2423 | struct mac_entry *e; | |
2424 | ||
2425 | e = mac_learning_lookup(o->ml, mac->mac, mac->vlan, | |
2426 | NULL); | |
2427 | if (e) { | |
b44a10b7 BP |
2428 | mac_learning_expire(o->ml, e); |
2429 | } | |
2430 | } | |
2431 | } | |
2432 | } | |
2433 | ||
abe529af BP |
2434 | mac_learning_expire(ml, mac); |
2435 | } | |
2436 | } | |
2437 | } | |
2438 | ||
2439 | static struct ofbundle * | |
2440 | bundle_lookup(const struct ofproto_dpif *ofproto, void *aux) | |
2441 | { | |
2442 | struct ofbundle *bundle; | |
2443 | ||
2444 | HMAP_FOR_EACH_IN_BUCKET (bundle, hmap_node, hash_pointer(aux, 0), | |
2445 | &ofproto->bundles) { | |
2446 | if (bundle->aux == aux) { | |
2447 | return bundle; | |
2448 | } | |
2449 | } | |
2450 | return NULL; | |
2451 | } | |
2452 | ||
2453 | /* Looks up each of the 'n_auxes' pointers in 'auxes' as bundles and adds the | |
2454 | * ones that are found to 'bundles'. */ | |
2455 | static void | |
2456 | bundle_lookup_multiple(struct ofproto_dpif *ofproto, | |
2457 | void **auxes, size_t n_auxes, | |
2458 | struct hmapx *bundles) | |
2459 | { | |
2460 | size_t i; | |
2461 | ||
2462 | hmapx_init(bundles); | |
2463 | for (i = 0; i < n_auxes; i++) { | |
2464 | struct ofbundle *bundle = bundle_lookup(ofproto, auxes[i]); | |
2465 | if (bundle) { | |
2466 | hmapx_add(bundles, bundle); | |
2467 | } | |
2468 | } | |
2469 | } | |
2470 | ||
7bde8dd8 JP |
2471 | static void |
2472 | bundle_update(struct ofbundle *bundle) | |
2473 | { | |
2474 | struct ofport_dpif *port; | |
2475 | ||
2476 | bundle->floodable = true; | |
2477 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
9e1fd49b BP |
2478 | if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD |
2479 | || !stp_forward_in_state(port->stp_state)) { | |
7bde8dd8 JP |
2480 | bundle->floodable = false; |
2481 | break; | |
2482 | } | |
2483 | } | |
2484 | } | |
2485 | ||
abe529af BP |
2486 | static void |
2487 | bundle_del_port(struct ofport_dpif *port) | |
2488 | { | |
2489 | struct ofbundle *bundle = port->bundle; | |
2490 | ||
2cc3c58e | 2491 | bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE; |
6f77f4ae | 2492 | |
abe529af BP |
2493 | list_remove(&port->bundle_node); |
2494 | port->bundle = NULL; | |
2495 | ||
2496 | if (bundle->lacp) { | |
2497 | lacp_slave_unregister(bundle->lacp, port); | |
2498 | } | |
2499 | if (bundle->bond) { | |
2500 | bond_slave_unregister(bundle->bond, port); | |
2501 | } | |
2502 | ||
7bde8dd8 | 2503 | bundle_update(bundle); |
abe529af BP |
2504 | } |
2505 | ||
2506 | static bool | |
213b00cf | 2507 | bundle_add_port(struct ofbundle *bundle, uint16_t ofp_port, |
df53d41c | 2508 | struct lacp_slave_settings *lacp) |
abe529af BP |
2509 | { |
2510 | struct ofport_dpif *port; | |
2511 | ||
2512 | port = get_ofp_port(bundle->ofproto, ofp_port); | |
2513 | if (!port) { | |
2514 | return false; | |
2515 | } | |
2516 | ||
2517 | if (port->bundle != bundle) { | |
2cc3c58e | 2518 | bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2519 | if (port->bundle) { |
2520 | bundle_del_port(port); | |
2521 | } | |
2522 | ||
2523 | port->bundle = bundle; | |
2524 | list_push_back(&bundle->ports, &port->bundle_node); | |
9e1fd49b BP |
2525 | if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD |
2526 | || !stp_forward_in_state(port->stp_state)) { | |
abe529af BP |
2527 | bundle->floodable = false; |
2528 | } | |
2529 | } | |
2530 | if (lacp) { | |
2cc3c58e | 2531 | bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2532 | lacp_slave_register(bundle->lacp, port, lacp); |
2533 | } | |
2534 | ||
2535 | return true; | |
2536 | } | |
2537 | ||
2538 | static void | |
2539 | bundle_destroy(struct ofbundle *bundle) | |
2540 | { | |
2541 | struct ofproto_dpif *ofproto; | |
2542 | struct ofport_dpif *port, *next_port; | |
2543 | int i; | |
2544 | ||
2545 | if (!bundle) { | |
2546 | return; | |
2547 | } | |
2548 | ||
2549 | ofproto = bundle->ofproto; | |
2550 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2551 | struct ofmirror *m = ofproto->mirrors[i]; | |
2552 | if (m) { | |
2553 | if (m->out == bundle) { | |
2554 | mirror_destroy(m); | |
2555 | } else if (hmapx_find_and_delete(&m->srcs, bundle) | |
2556 | || hmapx_find_and_delete(&m->dsts, bundle)) { | |
2cc3c58e | 2557 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2558 | } |
2559 | } | |
2560 | } | |
2561 | ||
2562 | LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) { | |
2563 | bundle_del_port(port); | |
2564 | } | |
2565 | ||
b44a10b7 | 2566 | bundle_flush_macs(bundle, true); |
abe529af BP |
2567 | hmap_remove(&ofproto->bundles, &bundle->hmap_node); |
2568 | free(bundle->name); | |
2569 | free(bundle->trunks); | |
2570 | lacp_destroy(bundle->lacp); | |
2571 | bond_destroy(bundle->bond); | |
2572 | free(bundle); | |
2573 | } | |
2574 | ||
2575 | static int | |
2576 | bundle_set(struct ofproto *ofproto_, void *aux, | |
2577 | const struct ofproto_bundle_settings *s) | |
2578 | { | |
2579 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2580 | bool need_flush = false; | |
abe529af BP |
2581 | struct ofport_dpif *port; |
2582 | struct ofbundle *bundle; | |
ecac4ebf BP |
2583 | unsigned long *trunks; |
2584 | int vlan; | |
abe529af BP |
2585 | size_t i; |
2586 | bool ok; | |
2587 | ||
2588 | if (!s) { | |
2589 | bundle_destroy(bundle_lookup(ofproto, aux)); | |
2590 | return 0; | |
2591 | } | |
2592 | ||
cb22974d BP |
2593 | ovs_assert(s->n_slaves == 1 || s->bond != NULL); |
2594 | ovs_assert((s->lacp != NULL) == (s->lacp_slaves != NULL)); | |
abe529af BP |
2595 | |
2596 | bundle = bundle_lookup(ofproto, aux); | |
2597 | if (!bundle) { | |
2598 | bundle = xmalloc(sizeof *bundle); | |
2599 | ||
2600 | bundle->ofproto = ofproto; | |
2601 | hmap_insert(&ofproto->bundles, &bundle->hmap_node, | |
2602 | hash_pointer(aux, 0)); | |
2603 | bundle->aux = aux; | |
2604 | bundle->name = NULL; | |
2605 | ||
2606 | list_init(&bundle->ports); | |
ecac4ebf | 2607 | bundle->vlan_mode = PORT_VLAN_TRUNK; |
abe529af BP |
2608 | bundle->vlan = -1; |
2609 | bundle->trunks = NULL; | |
5e9ceccd | 2610 | bundle->use_priority_tags = s->use_priority_tags; |
abe529af BP |
2611 | bundle->lacp = NULL; |
2612 | bundle->bond = NULL; | |
2613 | ||
2614 | bundle->floodable = true; | |
2615 | ||
2616 | bundle->src_mirrors = 0; | |
2617 | bundle->dst_mirrors = 0; | |
2618 | bundle->mirror_out = 0; | |
2619 | } | |
2620 | ||
2621 | if (!bundle->name || strcmp(s->name, bundle->name)) { | |
2622 | free(bundle->name); | |
2623 | bundle->name = xstrdup(s->name); | |
2624 | } | |
2625 | ||
2626 | /* LACP. */ | |
2627 | if (s->lacp) { | |
2628 | if (!bundle->lacp) { | |
2cc3c58e | 2629 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2630 | bundle->lacp = lacp_create(); |
2631 | } | |
2632 | lacp_configure(bundle->lacp, s->lacp); | |
2633 | } else { | |
2634 | lacp_destroy(bundle->lacp); | |
2635 | bundle->lacp = NULL; | |
2636 | } | |
2637 | ||
2638 | /* Update set of ports. */ | |
2639 | ok = true; | |
2640 | for (i = 0; i < s->n_slaves; i++) { | |
2641 | if (!bundle_add_port(bundle, s->slaves[i], | |
df53d41c | 2642 | s->lacp ? &s->lacp_slaves[i] : NULL)) { |
abe529af BP |
2643 | ok = false; |
2644 | } | |
2645 | } | |
2646 | if (!ok || list_size(&bundle->ports) != s->n_slaves) { | |
2647 | struct ofport_dpif *next_port; | |
2648 | ||
2649 | LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) { | |
2650 | for (i = 0; i < s->n_slaves; i++) { | |
56c769ab | 2651 | if (s->slaves[i] == port->up.ofp_port) { |
abe529af BP |
2652 | goto found; |
2653 | } | |
2654 | } | |
2655 | ||
2656 | bundle_del_port(port); | |
2657 | found: ; | |
2658 | } | |
2659 | } | |
cb22974d | 2660 | ovs_assert(list_size(&bundle->ports) <= s->n_slaves); |
abe529af BP |
2661 | |
2662 | if (list_is_empty(&bundle->ports)) { | |
2663 | bundle_destroy(bundle); | |
2664 | return EINVAL; | |
2665 | } | |
2666 | ||
ecac4ebf | 2667 | /* Set VLAN tagging mode */ |
5e9ceccd BP |
2668 | if (s->vlan_mode != bundle->vlan_mode |
2669 | || s->use_priority_tags != bundle->use_priority_tags) { | |
ecac4ebf | 2670 | bundle->vlan_mode = s->vlan_mode; |
5e9ceccd | 2671 | bundle->use_priority_tags = s->use_priority_tags; |
ecac4ebf BP |
2672 | need_flush = true; |
2673 | } | |
2674 | ||
abe529af | 2675 | /* Set VLAN tag. */ |
ecac4ebf BP |
2676 | vlan = (s->vlan_mode == PORT_VLAN_TRUNK ? -1 |
2677 | : s->vlan >= 0 && s->vlan <= 4095 ? s->vlan | |
2678 | : 0); | |
2679 | if (vlan != bundle->vlan) { | |
2680 | bundle->vlan = vlan; | |
abe529af BP |
2681 | need_flush = true; |
2682 | } | |
2683 | ||
2684 | /* Get trunked VLANs. */ | |
ecac4ebf BP |
2685 | switch (s->vlan_mode) { |
2686 | case PORT_VLAN_ACCESS: | |
2687 | trunks = NULL; | |
2688 | break; | |
2689 | ||
2690 | case PORT_VLAN_TRUNK: | |
ebc56baa | 2691 | trunks = CONST_CAST(unsigned long *, s->trunks); |
ecac4ebf BP |
2692 | break; |
2693 | ||
2694 | case PORT_VLAN_NATIVE_UNTAGGED: | |
2695 | case PORT_VLAN_NATIVE_TAGGED: | |
2696 | if (vlan != 0 && (!s->trunks | |
2697 | || !bitmap_is_set(s->trunks, vlan) | |
2698 | || bitmap_is_set(s->trunks, 0))) { | |
2699 | /* Force trunking the native VLAN and prohibit trunking VLAN 0. */ | |
2700 | if (s->trunks) { | |
2701 | trunks = bitmap_clone(s->trunks, 4096); | |
2702 | } else { | |
2703 | trunks = bitmap_allocate1(4096); | |
2704 | } | |
2705 | bitmap_set1(trunks, vlan); | |
2706 | bitmap_set0(trunks, 0); | |
2707 | } else { | |
ebc56baa | 2708 | trunks = CONST_CAST(unsigned long *, s->trunks); |
ecac4ebf BP |
2709 | } |
2710 | break; | |
2711 | ||
2712 | default: | |
2713 | NOT_REACHED(); | |
2714 | } | |
abe529af BP |
2715 | if (!vlan_bitmap_equal(trunks, bundle->trunks)) { |
2716 | free(bundle->trunks); | |
ecac4ebf BP |
2717 | if (trunks == s->trunks) { |
2718 | bundle->trunks = vlan_bitmap_clone(trunks); | |
2719 | } else { | |
2720 | bundle->trunks = trunks; | |
2721 | trunks = NULL; | |
2722 | } | |
abe529af BP |
2723 | need_flush = true; |
2724 | } | |
ecac4ebf BP |
2725 | if (trunks != s->trunks) { |
2726 | free(trunks); | |
2727 | } | |
abe529af BP |
2728 | |
2729 | /* Bonding. */ | |
2730 | if (!list_is_short(&bundle->ports)) { | |
2731 | bundle->ofproto->has_bonded_bundles = true; | |
2732 | if (bundle->bond) { | |
2733 | if (bond_reconfigure(bundle->bond, s->bond)) { | |
2cc3c58e | 2734 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2735 | } |
2736 | } else { | |
2737 | bundle->bond = bond_create(s->bond); | |
2cc3c58e | 2738 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
abe529af BP |
2739 | } |
2740 | ||
2741 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
df53d41c | 2742 | bond_slave_register(bundle->bond, port, port->up.netdev); |
abe529af BP |
2743 | } |
2744 | } else { | |
2745 | bond_destroy(bundle->bond); | |
2746 | bundle->bond = NULL; | |
2747 | } | |
2748 | ||
2749 | /* If we changed something that would affect MAC learning, un-learn | |
2750 | * everything on this port and force flow revalidation. */ | |
2751 | if (need_flush) { | |
b44a10b7 | 2752 | bundle_flush_macs(bundle, false); |
abe529af BP |
2753 | } |
2754 | ||
2755 | return 0; | |
2756 | } | |
2757 | ||
2758 | static void | |
2759 | bundle_remove(struct ofport *port_) | |
2760 | { | |
2761 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
2762 | struct ofbundle *bundle = port->bundle; | |
2763 | ||
2764 | if (bundle) { | |
2765 | bundle_del_port(port); | |
2766 | if (list_is_empty(&bundle->ports)) { | |
2767 | bundle_destroy(bundle); | |
2768 | } else if (list_is_short(&bundle->ports)) { | |
2769 | bond_destroy(bundle->bond); | |
2770 | bundle->bond = NULL; | |
2771 | } | |
2772 | } | |
2773 | } | |
2774 | ||
2775 | static void | |
5f877369 | 2776 | send_pdu_cb(void *port_, const void *pdu, size_t pdu_size) |
abe529af BP |
2777 | { |
2778 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10); | |
2779 | struct ofport_dpif *port = port_; | |
2780 | uint8_t ea[ETH_ADDR_LEN]; | |
2781 | int error; | |
2782 | ||
2783 | error = netdev_get_etheraddr(port->up.netdev, ea); | |
2784 | if (!error) { | |
abe529af | 2785 | struct ofpbuf packet; |
5f877369 | 2786 | void *packet_pdu; |
abe529af BP |
2787 | |
2788 | ofpbuf_init(&packet, 0); | |
2789 | packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP, | |
5f877369 EJ |
2790 | pdu_size); |
2791 | memcpy(packet_pdu, pdu, pdu_size); | |
2792 | ||
97d6520b | 2793 | send_packet(port, &packet); |
abe529af BP |
2794 | ofpbuf_uninit(&packet); |
2795 | } else { | |
2796 | VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface " | |
2797 | "%s (%s)", port->bundle->name, | |
2798 | netdev_get_name(port->up.netdev), strerror(error)); | |
2799 | } | |
2800 | } | |
2801 | ||
2802 | static void | |
2803 | bundle_send_learning_packets(struct ofbundle *bundle) | |
2804 | { | |
2805 | struct ofproto_dpif *ofproto = bundle->ofproto; | |
2806 | int error, n_packets, n_errors; | |
2807 | struct mac_entry *e; | |
2808 | ||
2809 | error = n_packets = n_errors = 0; | |
2810 | LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) { | |
2811 | if (e->port.p != bundle) { | |
ea131871 JG |
2812 | struct ofpbuf *learning_packet; |
2813 | struct ofport_dpif *port; | |
4dd1e3ca | 2814 | void *port_void; |
ea131871 JG |
2815 | int ret; |
2816 | ||
4dd1e3ca BP |
2817 | /* The assignment to "port" is unnecessary but makes "grep"ing for |
2818 | * struct ofport_dpif more effective. */ | |
2819 | learning_packet = bond_compose_learning_packet(bundle->bond, | |
2820 | e->mac, e->vlan, | |
2821 | &port_void); | |
2822 | port = port_void; | |
97d6520b | 2823 | ret = send_packet(port, learning_packet); |
ea131871 | 2824 | ofpbuf_delete(learning_packet); |
abe529af BP |
2825 | if (ret) { |
2826 | error = ret; | |
2827 | n_errors++; | |
2828 | } | |
2829 | n_packets++; | |
2830 | } | |
2831 | } | |
2832 | ||
2833 | if (n_errors) { | |
2834 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
2835 | VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning " | |
2836 | "packets, last error was: %s", | |
2837 | bundle->name, n_errors, n_packets, strerror(error)); | |
2838 | } else { | |
2839 | VLOG_DBG("bond %s: sent %d gratuitous learning packets", | |
2840 | bundle->name, n_packets); | |
2841 | } | |
2842 | } | |
2843 | ||
2844 | static void | |
2845 | bundle_run(struct ofbundle *bundle) | |
2846 | { | |
2847 | if (bundle->lacp) { | |
2848 | lacp_run(bundle->lacp, send_pdu_cb); | |
2849 | } | |
2850 | if (bundle->bond) { | |
2851 | struct ofport_dpif *port; | |
2852 | ||
2853 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
015e08bc | 2854 | bond_slave_set_may_enable(bundle->bond, port, port->may_enable); |
abe529af BP |
2855 | } |
2856 | ||
2cc3c58e | 2857 | bond_run(bundle->bond, &bundle->ofproto->backer->revalidate_set, |
bdebeece | 2858 | lacp_status(bundle->lacp)); |
abe529af BP |
2859 | if (bond_should_send_learning_packets(bundle->bond)) { |
2860 | bundle_send_learning_packets(bundle); | |
2861 | } | |
2862 | } | |
2863 | } | |
2864 | ||
2865 | static void | |
2866 | bundle_wait(struct ofbundle *bundle) | |
2867 | { | |
2868 | if (bundle->lacp) { | |
2869 | lacp_wait(bundle->lacp); | |
2870 | } | |
2871 | if (bundle->bond) { | |
2872 | bond_wait(bundle->bond); | |
2873 | } | |
2874 | } | |
2875 | \f | |
2876 | /* Mirrors. */ | |
2877 | ||
2878 | static int | |
2879 | mirror_scan(struct ofproto_dpif *ofproto) | |
2880 | { | |
2881 | int idx; | |
2882 | ||
2883 | for (idx = 0; idx < MAX_MIRRORS; idx++) { | |
2884 | if (!ofproto->mirrors[idx]) { | |
2885 | return idx; | |
2886 | } | |
2887 | } | |
2888 | return -1; | |
2889 | } | |
2890 | ||
2891 | static struct ofmirror * | |
2892 | mirror_lookup(struct ofproto_dpif *ofproto, void *aux) | |
2893 | { | |
2894 | int i; | |
2895 | ||
2896 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2897 | struct ofmirror *mirror = ofproto->mirrors[i]; | |
2898 | if (mirror && mirror->aux == aux) { | |
2899 | return mirror; | |
2900 | } | |
2901 | } | |
2902 | ||
2903 | return NULL; | |
2904 | } | |
2905 | ||
9ba15e2a BP |
2906 | /* Update the 'dup_mirrors' member of each of the ofmirrors in 'ofproto'. */ |
2907 | static void | |
2908 | mirror_update_dups(struct ofproto_dpif *ofproto) | |
2909 | { | |
2910 | int i; | |
2911 | ||
2912 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2913 | struct ofmirror *m = ofproto->mirrors[i]; | |
2914 | ||
2915 | if (m) { | |
2916 | m->dup_mirrors = MIRROR_MASK_C(1) << i; | |
2917 | } | |
2918 | } | |
2919 | ||
2920 | for (i = 0; i < MAX_MIRRORS; i++) { | |
2921 | struct ofmirror *m1 = ofproto->mirrors[i]; | |
2922 | int j; | |
2923 | ||
2924 | if (!m1) { | |
2925 | continue; | |
2926 | } | |
2927 | ||
2928 | for (j = i + 1; j < MAX_MIRRORS; j++) { | |
2929 | struct ofmirror *m2 = ofproto->mirrors[j]; | |
2930 | ||
edb0540b | 2931 | if (m2 && m1->out == m2->out && m1->out_vlan == m2->out_vlan) { |
9ba15e2a BP |
2932 | m1->dup_mirrors |= MIRROR_MASK_C(1) << j; |
2933 | m2->dup_mirrors |= m1->dup_mirrors; | |
2934 | } | |
2935 | } | |
2936 | } | |
2937 | } | |
2938 | ||
abe529af BP |
2939 | static int |
2940 | mirror_set(struct ofproto *ofproto_, void *aux, | |
2941 | const struct ofproto_mirror_settings *s) | |
2942 | { | |
2943 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2944 | mirror_mask_t mirror_bit; | |
2945 | struct ofbundle *bundle; | |
2946 | struct ofmirror *mirror; | |
2947 | struct ofbundle *out; | |
2948 | struct hmapx srcs; /* Contains "struct ofbundle *"s. */ | |
2949 | struct hmapx dsts; /* Contains "struct ofbundle *"s. */ | |
2950 | int out_vlan; | |
2951 | ||
2952 | mirror = mirror_lookup(ofproto, aux); | |
2953 | if (!s) { | |
2954 | mirror_destroy(mirror); | |
2955 | return 0; | |
2956 | } | |
2957 | if (!mirror) { | |
2958 | int idx; | |
2959 | ||
2960 | idx = mirror_scan(ofproto); | |
2961 | if (idx < 0) { | |
2962 | VLOG_WARN("bridge %s: maximum of %d port mirrors reached, " | |
2963 | "cannot create %s", | |
2964 | ofproto->up.name, MAX_MIRRORS, s->name); | |
2965 | return EFBIG; | |
2966 | } | |
2967 | ||
2968 | mirror = ofproto->mirrors[idx] = xzalloc(sizeof *mirror); | |
2969 | mirror->ofproto = ofproto; | |
2970 | mirror->idx = idx; | |
8b28d864 | 2971 | mirror->aux = aux; |
abe529af BP |
2972 | mirror->out_vlan = -1; |
2973 | mirror->name = NULL; | |
2974 | } | |
2975 | ||
2976 | if (!mirror->name || strcmp(s->name, mirror->name)) { | |
2977 | free(mirror->name); | |
2978 | mirror->name = xstrdup(s->name); | |
2979 | } | |
2980 | ||
2981 | /* Get the new configuration. */ | |
2982 | if (s->out_bundle) { | |
2983 | out = bundle_lookup(ofproto, s->out_bundle); | |
2984 | if (!out) { | |
2985 | mirror_destroy(mirror); | |
2986 | return EINVAL; | |
2987 | } | |
2988 | out_vlan = -1; | |
2989 | } else { | |
2990 | out = NULL; | |
2991 | out_vlan = s->out_vlan; | |
2992 | } | |
2993 | bundle_lookup_multiple(ofproto, s->srcs, s->n_srcs, &srcs); | |
2994 | bundle_lookup_multiple(ofproto, s->dsts, s->n_dsts, &dsts); | |
2995 | ||
2996 | /* If the configuration has not changed, do nothing. */ | |
2997 | if (hmapx_equals(&srcs, &mirror->srcs) | |
2998 | && hmapx_equals(&dsts, &mirror->dsts) | |
2999 | && vlan_bitmap_equal(mirror->vlans, s->src_vlans) | |
3000 | && mirror->out == out | |
3001 | && mirror->out_vlan == out_vlan) | |
3002 | { | |
3003 | hmapx_destroy(&srcs); | |
3004 | hmapx_destroy(&dsts); | |
3005 | return 0; | |
3006 | } | |
3007 | ||
3008 | hmapx_swap(&srcs, &mirror->srcs); | |
3009 | hmapx_destroy(&srcs); | |
3010 | ||
3011 | hmapx_swap(&dsts, &mirror->dsts); | |
3012 | hmapx_destroy(&dsts); | |
3013 | ||
3014 | free(mirror->vlans); | |
3015 | mirror->vlans = vlan_bitmap_clone(s->src_vlans); | |
3016 | ||
3017 | mirror->out = out; | |
3018 | mirror->out_vlan = out_vlan; | |
3019 | ||
3020 | /* Update bundles. */ | |
3021 | mirror_bit = MIRROR_MASK_C(1) << mirror->idx; | |
3022 | HMAP_FOR_EACH (bundle, hmap_node, &mirror->ofproto->bundles) { | |
3023 | if (hmapx_contains(&mirror->srcs, bundle)) { | |
3024 | bundle->src_mirrors |= mirror_bit; | |
3025 | } else { | |
3026 | bundle->src_mirrors &= ~mirror_bit; | |
3027 | } | |
3028 | ||
3029 | if (hmapx_contains(&mirror->dsts, bundle)) { | |
3030 | bundle->dst_mirrors |= mirror_bit; | |
3031 | } else { | |
3032 | bundle->dst_mirrors &= ~mirror_bit; | |
3033 | } | |
3034 | ||
3035 | if (mirror->out == bundle) { | |
3036 | bundle->mirror_out |= mirror_bit; | |
3037 | } else { | |
3038 | bundle->mirror_out &= ~mirror_bit; | |
3039 | } | |
3040 | } | |
3041 | ||
2cc3c58e | 3042 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
ccb7c863 | 3043 | ofproto->has_mirrors = true; |
2cc3c58e EJ |
3044 | mac_learning_flush(ofproto->ml, |
3045 | &ofproto->backer->revalidate_set); | |
9ba15e2a | 3046 | mirror_update_dups(ofproto); |
abe529af BP |
3047 | |
3048 | return 0; | |
3049 | } | |
3050 | ||
3051 | static void | |
3052 | mirror_destroy(struct ofmirror *mirror) | |
3053 | { | |
3054 | struct ofproto_dpif *ofproto; | |
3055 | mirror_mask_t mirror_bit; | |
3056 | struct ofbundle *bundle; | |
ccb7c863 | 3057 | int i; |
abe529af BP |
3058 | |
3059 | if (!mirror) { | |
3060 | return; | |
3061 | } | |
3062 | ||
3063 | ofproto = mirror->ofproto; | |
2cc3c58e EJ |
3064 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
3065 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); | |
abe529af BP |
3066 | |
3067 | mirror_bit = MIRROR_MASK_C(1) << mirror->idx; | |
3068 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
3069 | bundle->src_mirrors &= ~mirror_bit; | |
3070 | bundle->dst_mirrors &= ~mirror_bit; | |
3071 | bundle->mirror_out &= ~mirror_bit; | |
3072 | } | |
3073 | ||
3074 | hmapx_destroy(&mirror->srcs); | |
3075 | hmapx_destroy(&mirror->dsts); | |
3076 | free(mirror->vlans); | |
3077 | ||
3078 | ofproto->mirrors[mirror->idx] = NULL; | |
3079 | free(mirror->name); | |
3080 | free(mirror); | |
9ba15e2a BP |
3081 | |
3082 | mirror_update_dups(ofproto); | |
ccb7c863 BP |
3083 | |
3084 | ofproto->has_mirrors = false; | |
3085 | for (i = 0; i < MAX_MIRRORS; i++) { | |
3086 | if (ofproto->mirrors[i]) { | |
3087 | ofproto->has_mirrors = true; | |
3088 | break; | |
3089 | } | |
3090 | } | |
abe529af BP |
3091 | } |
3092 | ||
9d24de3b JP |
3093 | static int |
3094 | mirror_get_stats(struct ofproto *ofproto_, void *aux, | |
3095 | uint64_t *packets, uint64_t *bytes) | |
3096 | { | |
3097 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
3098 | struct ofmirror *mirror = mirror_lookup(ofproto, aux); | |
3099 | ||
3100 | if (!mirror) { | |
3101 | *packets = *bytes = UINT64_MAX; | |
3102 | return 0; | |
3103 | } | |
3104 | ||
8844e035 EJ |
3105 | push_all_stats(); |
3106 | ||
9d24de3b JP |
3107 | *packets = mirror->packet_count; |
3108 | *bytes = mirror->byte_count; | |
3109 | ||
3110 | return 0; | |
3111 | } | |
3112 | ||
abe529af BP |
3113 | static int |
3114 | set_flood_vlans(struct ofproto *ofproto_, unsigned long *flood_vlans) | |
3115 | { | |
3116 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
3117 | if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) { | |
2cc3c58e | 3118 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); |
abe529af BP |
3119 | } |
3120 | return 0; | |
3121 | } | |
3122 | ||
3123 | static bool | |
b4affc74 | 3124 | is_mirror_output_bundle(const struct ofproto *ofproto_, void *aux) |
abe529af BP |
3125 | { |
3126 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
3127 | struct ofbundle *bundle = bundle_lookup(ofproto, aux); | |
3128 | return bundle && bundle->mirror_out != 0; | |
3129 | } | |
8402c74b SS |
3130 | |
3131 | static void | |
b53055f4 | 3132 | forward_bpdu_changed(struct ofproto *ofproto_) |
8402c74b SS |
3133 | { |
3134 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2cc3c58e | 3135 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
8402c74b | 3136 | } |
e764773c BP |
3137 | |
3138 | static void | |
c4069512 BP |
3139 | set_mac_table_config(struct ofproto *ofproto_, unsigned int idle_time, |
3140 | size_t max_entries) | |
e764773c BP |
3141 | { |
3142 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
3143 | mac_learning_set_idle_time(ofproto->ml, idle_time); | |
c4069512 | 3144 | mac_learning_set_max_entries(ofproto->ml, max_entries); |
e764773c | 3145 | } |
abe529af BP |
3146 | \f |
3147 | /* Ports. */ | |
3148 | ||
3149 | static struct ofport_dpif * | |
4acbc98d | 3150 | get_ofp_port(const struct ofproto_dpif *ofproto, uint16_t ofp_port) |
abe529af | 3151 | { |
7df6a8bd BP |
3152 | struct ofport *ofport = ofproto_get_port(&ofproto->up, ofp_port); |
3153 | return ofport ? ofport_dpif_cast(ofport) : NULL; | |
abe529af BP |
3154 | } |
3155 | ||
3156 | static struct ofport_dpif * | |
4acbc98d | 3157 | get_odp_port(const struct ofproto_dpif *ofproto, uint32_t odp_port) |
abe529af | 3158 | { |
7c33b188 JR |
3159 | struct ofport_dpif *port = odp_port_to_ofport(ofproto->backer, odp_port); |
3160 | return port && &ofproto->up == port->up.ofproto ? port : NULL; | |
abe529af BP |
3161 | } |
3162 | ||
3163 | static void | |
e1b1d06a JP |
3164 | ofproto_port_from_dpif_port(struct ofproto_dpif *ofproto, |
3165 | struct ofproto_port *ofproto_port, | |
abe529af BP |
3166 | struct dpif_port *dpif_port) |
3167 | { | |
3168 | ofproto_port->name = dpif_port->name; | |
3169 | ofproto_port->type = dpif_port->type; | |
e1b1d06a | 3170 | ofproto_port->ofp_port = odp_port_to_ofp_port(ofproto, dpif_port->port_no); |
abe529af BP |
3171 | } |
3172 | ||
0a740f48 EJ |
3173 | static struct ofport_dpif * |
3174 | ofport_get_peer(const struct ofport_dpif *ofport_dpif) | |
3175 | { | |
3176 | const struct ofproto_dpif *ofproto; | |
3177 | const char *peer; | |
3178 | ||
3179 | peer = netdev_vport_patch_peer(ofport_dpif->up.netdev); | |
3180 | if (!peer) { | |
3181 | return NULL; | |
3182 | } | |
3183 | ||
3184 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
3185 | struct ofport *ofport; | |
3186 | ||
3187 | ofport = shash_find_data(&ofproto->up.port_by_name, peer); | |
3188 | if (ofport && ofport->ofproto->ofproto_class == &ofproto_dpif_class) { | |
3189 | return ofport_dpif_cast(ofport); | |
3190 | } | |
3191 | } | |
3192 | return NULL; | |
3193 | } | |
3194 | ||
0aa66d6e EJ |
3195 | static void |
3196 | port_run_fast(struct ofport_dpif *ofport) | |
3197 | { | |
3198 | if (ofport->cfm && cfm_should_send_ccm(ofport->cfm)) { | |
3199 | struct ofpbuf packet; | |
3200 | ||
3201 | ofpbuf_init(&packet, 0); | |
3202 | cfm_compose_ccm(ofport->cfm, &packet, ofport->up.pp.hw_addr); | |
3203 | send_packet(ofport, &packet); | |
3204 | ofpbuf_uninit(&packet); | |
3205 | } | |
ccc09689 EJ |
3206 | |
3207 | if (ofport->bfd && bfd_should_send_packet(ofport->bfd)) { | |
3208 | struct ofpbuf packet; | |
3209 | ||
3210 | ofpbuf_init(&packet, 0); | |
3211 | bfd_put_packet(ofport->bfd, &packet, ofport->up.pp.hw_addr); | |
3212 | send_packet(ofport, &packet); | |
3213 | ofpbuf_uninit(&packet); | |
3214 | } | |
0aa66d6e EJ |
3215 | } |
3216 | ||
abe529af BP |
3217 | static void |
3218 | port_run(struct ofport_dpif *ofport) | |
3219 | { | |
3e5b3fdb EJ |
3220 | long long int carrier_seq = netdev_get_carrier_resets(ofport->up.netdev); |
3221 | bool carrier_changed = carrier_seq != ofport->carrier_seq; | |
015e08bc EJ |
3222 | bool enable = netdev_get_carrier(ofport->up.netdev); |
3223 | ||
3e5b3fdb EJ |
3224 | ofport->carrier_seq = carrier_seq; |
3225 | ||
0aa66d6e | 3226 | port_run_fast(ofport); |
b9ad7294 EJ |
3227 | |
3228 | if (ofport->tnl_port | |
3229 | && tnl_port_reconfigure(&ofport->up, ofport->odp_port, | |
3230 | &ofport->tnl_port)) { | |
3231 | ofproto_dpif_cast(ofport->up.ofproto)->backer->need_revalidate = true; | |
3232 | } | |
3233 | ||
abe529af | 3234 | if (ofport->cfm) { |
4653c558 EJ |
3235 | int cfm_opup = cfm_get_opup(ofport->cfm); |
3236 | ||
abe529af | 3237 | cfm_run(ofport->cfm); |
4653c558 EJ |
3238 | enable = enable && !cfm_get_fault(ofport->cfm); |
3239 | ||
3240 | if (cfm_opup >= 0) { | |
3241 | enable = enable && cfm_opup; | |
3242 | } | |
abe529af | 3243 | } |
015e08bc | 3244 | |
ccc09689 EJ |
3245 | if (ofport->bfd) { |
3246 | bfd_run(ofport->bfd); | |
3247 | enable = enable && bfd_forwarding(ofport->bfd); | |
3248 | } | |
3249 | ||
015e08bc EJ |
3250 | if (ofport->bundle) { |
3251 | enable = enable && lacp_slave_may_enable(ofport->bundle->lacp, ofport); | |
3e5b3fdb EJ |
3252 | if (carrier_changed) { |
3253 | lacp_slave_carrier_changed(ofport->bundle->lacp, ofport); | |
3254 | } | |
015e08bc EJ |
3255 | } |
3256 | ||
daff3353 EJ |
3257 | if (ofport->may_enable != enable) { |
3258 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
3259 | ||
3260 | if (ofproto->has_bundle_action) { | |
2cc3c58e | 3261 | ofproto->backer->need_revalidate = REV_PORT_TOGGLED; |
daff3353 EJ |
3262 | } |
3263 | } | |
3264 | ||
015e08bc | 3265 | ofport->may_enable = enable; |
abe529af BP |
3266 | } |
3267 | ||
3268 | static void | |
3269 | port_wait(struct ofport_dpif *ofport) | |
3270 | { | |
3271 | if (ofport->cfm) { | |
3272 | cfm_wait(ofport->cfm); | |
3273 | } | |
ccc09689 EJ |
3274 | |
3275 | if (ofport->bfd) { | |
3276 | bfd_wait(ofport->bfd); | |
3277 | } | |
abe529af BP |
3278 | } |
3279 | ||
3280 | static int | |
3281 | port_query_by_name(const struct ofproto *ofproto_, const char *devname, | |
3282 | struct ofproto_port *ofproto_port) | |
3283 | { | |
3284 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
3285 | struct dpif_port dpif_port; | |
3286 | int error; | |
3287 | ||
0a740f48 EJ |
3288 | if (sset_contains(&ofproto->ghost_ports, devname)) { |
3289 | const char *type = netdev_get_type_from_name(devname); | |
3290 | ||
3291 | /* We may be called before ofproto->up.port_by_name is populated with | |
3292 | * the appropriate ofport. For this reason, we must get the name and | |
3293 | * type from the netdev layer directly. */ | |
3294 | if (type) { | |
3295 | const struct ofport *ofport; | |
3296 | ||
3297 | ofport = shash_find_data(&ofproto->up.port_by_name, devname); | |
3298 | ofproto_port->ofp_port = ofport ? ofport->ofp_port : OFPP_NONE; | |
3299 | ofproto_port->name = xstrdup(devname); | |
3300 | ofproto_port->type = xstrdup(type); | |
3301 | return 0; | |
3302 | } | |
3303 | return ENODEV; | |
3304 | } | |
3305 | ||
acf60855 JP |
3306 | if (!sset_contains(&ofproto->ports, devname)) { |
3307 | return ENODEV; | |
3308 | } | |
3309 | error = dpif_port_query_by_name(ofproto->backer->dpif, | |
3310 | devname, &dpif_port); | |
abe529af | 3311 | if (!error) { |
e1b1d06a | 3312 | ofproto_port_from_dpif_port(ofproto, ofproto_port, &dpif_port); |
abe529af BP |
3313 | } |
3314 | return error; | |
3315 | } | |
3316 | ||
3317 | static int | |
e1b1d06a | 3318 | port_add(struct ofproto *ofproto_, struct netdev *netdev) |
abe529af BP |
3319 | { |
3320 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
b9ad7294 EJ |
3321 | const char *dp_port_name = netdev_vport_get_dpif_port(netdev); |
3322 | const char *devname = netdev_get_name(netdev); | |
abe529af | 3323 | |
0a740f48 EJ |
3324 | if (netdev_vport_is_patch(netdev)) { |
3325 | sset_add(&ofproto->ghost_ports, netdev_get_name(netdev)); | |
3326 | return 0; | |
3327 | } | |
3328 | ||
b9ad7294 | 3329 | if (!dpif_port_exists(ofproto->backer->dpif, dp_port_name)) { |
7d82ab2e KM |
3330 | uint32_t port_no = UINT32_MAX; |
3331 | int error; | |
3332 | ||
3333 | error = dpif_port_add(ofproto->backer->dpif, netdev, &port_no); | |
b9ad7294 EJ |
3334 | if (error) { |
3335 | return error; | |
3336 | } | |
7d82ab2e KM |
3337 | if (netdev_get_tunnel_config(netdev)) { |
3338 | simap_put(&ofproto->backer->tnl_backers, dp_port_name, port_no); | |
3339 | } | |
acf60855 | 3340 | } |
b9ad7294 EJ |
3341 | |
3342 | if (netdev_get_tunnel_config(netdev)) { | |
3343 | sset_add(&ofproto->ghost_ports, devname); | |
b9ad7294 EJ |
3344 | } else { |
3345 | sset_add(&ofproto->ports, devname); | |
3346 | } | |
3347 | return 0; | |
3348 | } | |
3349 | ||
abe529af BP |
3350 | static int |
3351 | port_del(struct ofproto *ofproto_, uint16_t ofp_port) | |
3352 | { | |
3353 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
b9ad7294 | 3354 | struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port); |
e1b1d06a | 3355 | int error = 0; |
abe529af | 3356 | |
b9ad7294 EJ |
3357 | if (!ofport) { |
3358 | return 0; | |
e1b1d06a | 3359 | } |
b9ad7294 EJ |
3360 | |
3361 | sset_find_and_delete(&ofproto->ghost_ports, | |
3362 | netdev_get_name(ofport->up.netdev)); | |
a614d823 KM |
3363 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
3364 | if (!ofport->tnl_port) { | |
b9ad7294 EJ |
3365 | error = dpif_port_del(ofproto->backer->dpif, ofport->odp_port); |
3366 | if (!error) { | |
abe529af BP |
3367 | /* The caller is going to close ofport->up.netdev. If this is a |
3368 | * bonded port, then the bond is using that netdev, so remove it | |
3369 | * from the bond. The client will need to reconfigure everything | |
3370 | * after deleting ports, so then the slave will get re-added. */ | |
3371 | bundle_remove(&ofport->up); | |
3372 | } | |
3373 | } | |
3374 | return error; | |
3375 | } | |
3376 | ||
6527c598 PS |
3377 | static int |
3378 | port_get_stats(const struct ofport *ofport_, struct netdev_stats *stats) | |
3379 | { | |
3380 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
3381 | int error; | |
3382 | ||
8844e035 EJ |
3383 | push_all_stats(); |
3384 | ||
6527c598 PS |
3385 | error = netdev_get_stats(ofport->up.netdev, stats); |
3386 | ||
ee382d89 | 3387 | if (!error && ofport_->ofp_port == OFPP_LOCAL) { |
6527c598 PS |
3388 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); |
3389 | ||
3390 | /* ofproto->stats.tx_packets represents packets that we created | |
3391 | * internally and sent to some port (e.g. packets sent with | |
3392 | * send_packet()). Account for them as if they had come from | |
3393 | * OFPP_LOCAL and got forwarded. */ | |
3394 | ||
3395 | if (stats->rx_packets != UINT64_MAX) { | |
3396 | stats->rx_packets += ofproto->stats.tx_packets; | |
3397 | } | |
3398 | ||
3399 | if (stats->rx_bytes != UINT64_MAX) { | |
3400 | stats->rx_bytes += ofproto->stats.tx_bytes; | |
3401 | } | |
3402 | ||
3403 | /* ofproto->stats.rx_packets represents packets that were received on | |
3404 | * some port and we processed internally and dropped (e.g. STP). | |
4e090bc7 | 3405 | * Account for them as if they had been forwarded to OFPP_LOCAL. */ |
6527c598 PS |
3406 | |
3407 | if (stats->tx_packets != UINT64_MAX) { | |
3408 | stats->tx_packets += ofproto->stats.rx_packets; | |
3409 | } | |
3410 | ||
3411 | if (stats->tx_bytes != UINT64_MAX) { | |
3412 | stats->tx_bytes += ofproto->stats.rx_bytes; | |
3413 | } | |
3414 | } | |
3415 | ||
3416 | return error; | |
3417 | } | |
3418 | ||
abe529af | 3419 | struct port_dump_state { |
acf60855 JP |
3420 | uint32_t bucket; |
3421 | uint32_t offset; | |
0a740f48 | 3422 | bool ghost; |
da78d43d BP |
3423 | |
3424 | struct ofproto_port port; | |
3425 | bool has_port; | |
abe529af BP |
3426 | }; |
3427 | ||
3428 | static int | |
acf60855 | 3429 | port_dump_start(const struct ofproto *ofproto_ OVS_UNUSED, void **statep) |
abe529af | 3430 | { |
0a740f48 | 3431 | *statep = xzalloc(sizeof(struct port_dump_state)); |
abe529af BP |
3432 | return 0; |
3433 | } | |
3434 | ||
3435 | static int | |
b9ad7294 | 3436 | port_dump_next(const struct ofproto *ofproto_, void *state_, |
abe529af BP |
3437 | struct ofproto_port *port) |
3438 | { | |
e1b1d06a | 3439 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); |
abe529af | 3440 | struct port_dump_state *state = state_; |
0a740f48 | 3441 | const struct sset *sset; |
acf60855 | 3442 | struct sset_node *node; |
abe529af | 3443 | |
da78d43d BP |
3444 | if (state->has_port) { |
3445 | ofproto_port_destroy(&state->port); | |
3446 | state->has_port = false; | |
3447 | } | |
0a740f48 EJ |
3448 | sset = state->ghost ? &ofproto->ghost_ports : &ofproto->ports; |
3449 | while ((node = sset_at_position(sset, &state->bucket, &state->offset))) { | |
acf60855 JP |
3450 | int error; |
3451 | ||
da78d43d BP |
3452 | error = port_query_by_name(ofproto_, node->name, &state->port); |
3453 | if (!error) { | |
3454 | *port = state->port; | |
3455 | state->has_port = true; | |
3456 | return 0; | |
3457 | } else if (error != ENODEV) { | |
acf60855 JP |
3458 | return error; |
3459 | } | |
abe529af | 3460 | } |
acf60855 | 3461 | |
0a740f48 EJ |
3462 | if (!state->ghost) { |
3463 | state->ghost = true; | |
3464 | state->bucket = 0; | |
3465 | state->offset = 0; | |
3466 | return port_dump_next(ofproto_, state_, port); | |
3467 | } | |
3468 | ||
acf60855 | 3469 | return EOF; |
abe529af BP |
3470 | } |
3471 | ||
3472 | static int | |
3473 | port_dump_done(const struct ofproto *ofproto_ OVS_UNUSED, void *state_) | |
3474 | { | |
3475 | struct port_dump_state *state = state_; | |
3476 | ||
da78d43d BP |
3477 | if (state->has_port) { |
3478 | ofproto_port_destroy(&state->port); | |
3479 | } | |
abe529af BP |
3480 | free(state); |
3481 | return 0; | |
3482 | } | |
3483 | ||
3484 | static int | |
3485 | port_poll(const struct ofproto *ofproto_, char **devnamep) | |
3486 | { | |
3487 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
acf60855 JP |
3488 | |
3489 | if (ofproto->port_poll_errno) { | |
3490 | int error = ofproto->port_poll_errno; | |
3491 | ofproto->port_poll_errno = 0; | |
3492 | return error; | |
3493 | } | |
3494 | ||
3495 | if (sset_is_empty(&ofproto->port_poll_set)) { | |
3496 | return EAGAIN; | |
3497 | } | |
3498 | ||
3499 | *devnamep = sset_pop(&ofproto->port_poll_set); | |
3500 | return 0; | |
abe529af BP |
3501 | } |
3502 | ||
3503 | static void | |
3504 | port_poll_wait(const struct ofproto *ofproto_) | |
3505 | { | |
3506 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
acf60855 | 3507 | dpif_port_poll_wait(ofproto->backer->dpif); |
abe529af BP |
3508 | } |
3509 | ||
3510 | static int | |
3511 | port_is_lacp_current(const struct ofport *ofport_) | |
3512 | { | |
3513 | const struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
3514 | return (ofport->bundle && ofport->bundle->lacp | |
3515 | ? lacp_slave_is_current(ofport->bundle->lacp, ofport) | |
3516 | : -1); | |
3517 | } | |
3518 | \f | |
3519 | /* Upcall handling. */ | |
3520 | ||
501f8d1f BP |
3521 | /* Flow miss batching. |
3522 | * | |
3523 | * Some dpifs implement operations faster when you hand them off in a batch. | |
3524 | * To allow batching, "struct flow_miss" queues the dpif-related work needed | |
3525 | * for a given flow. Each "struct flow_miss" corresponds to sending one or | |
3526 | * more packets, plus possibly installing the flow in the dpif. | |
3527 | * | |
3528 | * So far we only batch the operations that affect flow setup time the most. | |
3529 | * It's possible to batch more than that, but the benefit might be minimal. */ | |
3530 | struct flow_miss { | |
3531 | struct hmap_node hmap_node; | |
acf60855 | 3532 | struct ofproto_dpif *ofproto; |
501f8d1f | 3533 | struct flow flow; |
b0f7b9b5 | 3534 | enum odp_key_fitness key_fitness; |
501f8d1f BP |
3535 | const struct nlattr *key; |
3536 | size_t key_len; | |
14f94f9a | 3537 | struct initial_vals initial_vals; |
501f8d1f | 3538 | struct list packets; |
6a7e895f | 3539 | enum dpif_upcall_type upcall_type; |
501f8d1f BP |
3540 | }; |
3541 | ||
3542 | struct flow_miss_op { | |
c2b565b5 | 3543 | struct dpif_op dpif_op; |
bbafd73b EJ |
3544 | |
3545 | uint64_t slow_stub[128 / 8]; /* Buffer for compose_slow_path() */ | |
3546 | struct xlate_out xout; | |
3547 | bool xout_garbage; /* 'xout' needs to be uninitialized? */ | |
501f8d1f BP |
3548 | }; |
3549 | ||
62cd7072 BP |
3550 | /* Sends an OFPT_PACKET_IN message for 'packet' of type OFPR_NO_MATCH to each |
3551 | * OpenFlow controller as necessary according to their individual | |
29ebe880 | 3552 | * configurations. */ |
62cd7072 | 3553 | static void |
a39edbd4 | 3554 | send_packet_in_miss(struct ofproto_dpif *ofproto, const struct ofpbuf *packet, |
29ebe880 | 3555 | const struct flow *flow) |
62cd7072 BP |
3556 | { |
3557 | struct ofputil_packet_in pin; | |
3558 | ||
3e3252fa EJ |
3559 | pin.packet = packet->data; |
3560 | pin.packet_len = packet->size; | |
62cd7072 | 3561 | pin.reason = OFPR_NO_MATCH; |
a7349929 | 3562 | pin.controller_id = 0; |
54834960 EJ |
3563 | |
3564 | pin.table_id = 0; | |
3565 | pin.cookie = 0; | |
3566 | ||
62cd7072 | 3567 | pin.send_len = 0; /* not used for flow table misses */ |
5d6c3af0 EJ |
3568 | |
3569 | flow_get_metadata(flow, &pin.fmd); | |
3570 | ||
d8653c38 | 3571 | connmgr_send_packet_in(ofproto->up.connmgr, &pin); |
62cd7072 BP |
3572 | } |
3573 | ||
6a7e895f | 3574 | static enum slow_path_reason |
abe529af | 3575 | process_special(struct ofproto_dpif *ofproto, const struct flow *flow, |
ffaef958 | 3576 | const struct ofport_dpif *ofport, const struct ofpbuf *packet) |
abe529af | 3577 | { |
b6e001b6 | 3578 | if (!ofport) { |
6a7e895f | 3579 | return 0; |
ffaef958 | 3580 | } else if (ofport->cfm && cfm_should_process_flow(ofport->cfm, flow)) { |
b6e001b6 | 3581 | if (packet) { |
abe529af BP |
3582 | cfm_process_heartbeat(ofport->cfm, packet); |
3583 | } | |
6a7e895f | 3584 | return SLOW_CFM; |
ccc09689 EJ |
3585 | } else if (ofport->bfd && bfd_should_process_flow(flow)) { |
3586 | if (packet) { | |
3587 | bfd_process_packet(ofport->bfd, flow, packet); | |
3588 | } | |
3589 | return SLOW_BFD; | |
b6e001b6 EJ |
3590 | } else if (ofport->bundle && ofport->bundle->lacp |
3591 | && flow->dl_type == htons(ETH_TYPE_LACP)) { | |
3592 | if (packet) { | |
3593 | lacp_process_packet(ofport->bundle->lacp, ofport, packet); | |
abe529af | 3594 | } |
6a7e895f | 3595 | return SLOW_LACP; |
21f7563c JP |
3596 | } else if (ofproto->stp && stp_should_process_flow(flow)) { |
3597 | if (packet) { | |
3598 | stp_process_packet(ofport, packet); | |
3599 | } | |
6a7e895f | 3600 | return SLOW_STP; |
ffaef958 BP |
3601 | } else { |
3602 | return 0; | |
abe529af | 3603 | } |
abe529af BP |
3604 | } |
3605 | ||
501f8d1f | 3606 | static struct flow_miss * |
ddbc5954 JP |
3607 | flow_miss_find(struct hmap *todo, const struct ofproto_dpif *ofproto, |
3608 | const struct flow *flow, uint32_t hash) | |
abe529af | 3609 | { |
501f8d1f | 3610 | struct flow_miss *miss; |
abe529af | 3611 | |
501f8d1f | 3612 | HMAP_FOR_EACH_WITH_HASH (miss, hmap_node, hash, todo) { |
ddbc5954 | 3613 | if (miss->ofproto == ofproto && flow_equal(&miss->flow, flow)) { |
501f8d1f BP |
3614 | return miss; |
3615 | } | |
3616 | } | |
abe529af | 3617 | |
b23cdad9 | 3618 | return NULL; |
501f8d1f | 3619 | } |
abe529af | 3620 | |
9d6ac44e BP |
3621 | /* Partially Initializes 'op' as an "execute" operation for 'miss' and |
3622 | * 'packet'. The caller must initialize op->actions and op->actions_len. If | |
3623 | * 'miss' is associated with a subfacet the caller must also initialize the | |
3624 | * returned op->subfacet, and if anything needs to be freed after processing | |
3625 | * the op, the caller must initialize op->garbage also. */ | |
501f8d1f | 3626 | static void |
9d6ac44e BP |
3627 | init_flow_miss_execute_op(struct flow_miss *miss, struct ofpbuf *packet, |
3628 | struct flow_miss_op *op) | |
501f8d1f | 3629 | { |
14f94f9a | 3630 | if (miss->flow.vlan_tci != miss->initial_vals.vlan_tci) { |
9d6ac44e BP |
3631 | /* This packet was received on a VLAN splinter port. We |
3632 | * added a VLAN to the packet to make the packet resemble | |
3633 | * the flow, but the actions were composed assuming that | |
3634 | * the packet contained no VLAN. So, we must remove the | |
3635 | * VLAN header from the packet before trying to execute the | |
3636 | * actions. */ | |
3637 | eth_pop_vlan(packet); | |
3638 | } | |
3639 | ||
bbafd73b | 3640 | op->xout_garbage = false; |
9d6ac44e BP |
3641 | op->dpif_op.type = DPIF_OP_EXECUTE; |
3642 | op->dpif_op.u.execute.key = miss->key; | |
3643 | op->dpif_op.u.execute.key_len = miss->key_len; | |
3644 | op->dpif_op.u.execute.packet = packet; | |
3645 | } | |
3646 | ||
3647 | /* Helper for handle_flow_miss_without_facet() and | |
3648 | * handle_flow_miss_with_facet(). */ | |
3649 | static void | |
3650 | handle_flow_miss_common(struct rule_dpif *rule, | |
3651 | struct ofpbuf *packet, const struct flow *flow) | |
3652 | { | |
3653 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
3654 | ||
9d6ac44e BP |
3655 | if (rule->up.cr.priority == FAIL_OPEN_PRIORITY) { |
3656 | /* | |
3657 | * Extra-special case for fail-open mode. | |
3658 | * | |
3659 | * We are in fail-open mode and the packet matched the fail-open | |
3660 | * rule, but we are connected to a controller too. We should send | |
3661 | * the packet up to the controller in the hope that it will try to | |
3662 | * set up a flow and thereby allow us to exit fail-open. | |
3663 | * | |
3664 | * See the top-level comment in fail-open.c for more information. | |
3665 | */ | |
3666 | send_packet_in_miss(ofproto, packet, flow); | |
3667 | } | |
3668 | } | |
3669 | ||
3670 | /* Figures out whether a flow that missed in 'ofproto', whose details are in | |
3671 | * 'miss', is likely to be worth tracking in detail in userspace and (usually) | |
3672 | * installing a datapath flow. The answer is usually "yes" (a return value of | |
3673 | * true). However, for short flows the cost of bookkeeping is much higher than | |
3674 | * the benefits, so when the datapath holds a large number of flows we impose | |
3675 | * some heuristics to decide which flows are likely to be worth tracking. */ | |
3676 | static bool | |
3677 | flow_miss_should_make_facet(struct ofproto_dpif *ofproto, | |
3678 | struct flow_miss *miss, uint32_t hash) | |
3679 | { | |
3680 | if (!ofproto->governor) { | |
3681 | size_t n_subfacets; | |
3682 | ||
3683 | n_subfacets = hmap_count(&ofproto->subfacets); | |
3684 | if (n_subfacets * 2 <= ofproto->up.flow_eviction_threshold) { | |
3685 | return true; | |
3686 | } | |
3687 | ||
3688 | ofproto->governor = governor_create(ofproto->up.name); | |
3689 | } | |
3690 | ||
3691 | return governor_should_install_flow(ofproto->governor, hash, | |
3692 | list_size(&miss->packets)); | |
3693 | } | |
3694 | ||
3695 | /* Handles 'miss', which matches 'rule', without creating a facet or subfacet | |
3696 | * or creating any datapath flow. May add an "execute" operation to 'ops' and | |
3697 | * increment '*n_ops'. */ | |
3698 | static void | |
3699 | handle_flow_miss_without_facet(struct flow_miss *miss, | |
9d6ac44e BP |
3700 | struct flow_miss_op *ops, size_t *n_ops) |
3701 | { | |
4dff9097 | 3702 | struct rule_dpif *rule = rule_dpif_lookup(miss->ofproto, &miss->flow); |
a7752d4a | 3703 | long long int now = time_msec(); |
530a1d91 | 3704 | struct ofpbuf *packet; |
bbafd73b | 3705 | struct xlate_in xin; |
2b459b83 | 3706 | |
9d6ac44e BP |
3707 | LIST_FOR_EACH (packet, list_node, &miss->packets) { |
3708 | struct flow_miss_op *op = &ops[*n_ops]; | |
3709 | struct dpif_flow_stats stats; | |
abe529af | 3710 | |
9d6ac44e | 3711 | COVERAGE_INC(facet_suppress); |
501f8d1f | 3712 | |
7820e253 EJ |
3713 | handle_flow_miss_common(rule, packet, &miss->flow); |
3714 | ||
a7752d4a | 3715 | dpif_flow_stats_extract(&miss->flow, packet, now, &stats); |
9d6ac44e | 3716 | rule_credit_stats(rule, &stats); |
abe529af | 3717 | |
bbafd73b EJ |
3718 | xlate_in_init(&xin, miss->ofproto, &miss->flow, &miss->initial_vals, |
3719 | rule, stats.tcp_flags, packet); | |
3720 | xin.resubmit_stats = &stats; | |
3721 | xlate_actions(&xin, &op->xout); | |
abe529af | 3722 | |
bbafd73b | 3723 | if (op->xout.odp_actions.size) { |
9d6ac44e BP |
3724 | struct dpif_execute *execute = &op->dpif_op.u.execute; |
3725 | ||
3726 | init_flow_miss_execute_op(miss, packet, op); | |
bbafd73b EJ |
3727 | execute->actions = op->xout.odp_actions.data; |
3728 | execute->actions_len = op->xout.odp_actions.size; | |
3729 | op->xout_garbage = true; | |
9d6ac44e BP |
3730 | |
3731 | (*n_ops)++; | |
3732 | } else { | |
bbafd73b | 3733 | xlate_out_uninit(&op->xout); |
9d6ac44e | 3734 | } |
abe529af | 3735 | } |
9d6ac44e BP |
3736 | } |
3737 | ||
3738 | /* Handles 'miss', which matches 'facet'. May add any required datapath | |
459b16a1 BP |
3739 | * operations to 'ops', incrementing '*n_ops' for each new op. |
3740 | * | |
3741 | * All of the packets in 'miss' are considered to have arrived at time 'now'. | |
3742 | * This is really important only for new facets: if we just called time_msec() | |
3743 | * here, then the new subfacet or its packets could look (occasionally) as | |
3744 | * though it was used some time after the facet was used. That can make a | |
3745 | * one-packet flow look like it has a nonzero duration, which looks odd in | |
3746 | * e.g. NetFlow statistics. */ | |
9d6ac44e BP |
3747 | static void |
3748 | handle_flow_miss_with_facet(struct flow_miss *miss, struct facet *facet, | |
459b16a1 | 3749 | long long int now, |
9d6ac44e BP |
3750 | struct flow_miss_op *ops, size_t *n_ops) |
3751 | { | |
6a7e895f BP |
3752 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
3753 | enum subfacet_path want_path; | |
9d6ac44e BP |
3754 | struct subfacet *subfacet; |
3755 | struct ofpbuf *packet; | |
abe529af | 3756 | |
a088a1ff | 3757 | subfacet = subfacet_create(facet, miss, now); |
bbafd73b | 3758 | want_path = subfacet->facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH; |
b0f7b9b5 | 3759 | |
530a1d91 | 3760 | LIST_FOR_EACH (packet, list_node, &miss->packets) { |
5fe20d5d | 3761 | struct flow_miss_op *op = &ops[*n_ops]; |
67d91f78 BP |
3762 | struct dpif_flow_stats stats; |
3763 | ||
9d6ac44e | 3764 | handle_flow_miss_common(facet->rule, packet, &miss->flow); |
501f8d1f | 3765 | |
4dff9097 | 3766 | if (want_path != SF_FAST_PATH) { |
bbafd73b | 3767 | struct xlate_in xin; |
454a77e5 | 3768 | |
bbafd73b EJ |
3769 | xlate_in_init(&xin, ofproto, &facet->flow, &facet->initial_vals, |
3770 | facet->rule, 0, packet); | |
3771 | xlate_actions_for_side_effects(&xin); | |
501f8d1f | 3772 | } |
67d91f78 | 3773 | |
459b16a1 | 3774 | dpif_flow_stats_extract(&facet->flow, packet, now, &stats); |
15baa734 | 3775 | subfacet_update_stats(subfacet, &stats); |
67d91f78 | 3776 | |
bbafd73b | 3777 | if (facet->xout.odp_actions.size) { |
9d6ac44e | 3778 | struct dpif_execute *execute = &op->dpif_op.u.execute; |
8338659a | 3779 | |
9d6ac44e | 3780 | init_flow_miss_execute_op(miss, packet, op); |
bbafd73b EJ |
3781 | execute->actions = facet->xout.odp_actions.data, |
3782 | execute->actions_len = facet->xout.odp_actions.size; | |
9d6ac44e | 3783 | (*n_ops)++; |
5fe20d5d | 3784 | } |
501f8d1f BP |
3785 | } |
3786 | ||
6a7e895f | 3787 | if (miss->upcall_type == DPIF_UC_MISS || subfacet->path != want_path) { |
501f8d1f | 3788 | struct flow_miss_op *op = &ops[(*n_ops)++]; |
c2b565b5 | 3789 | struct dpif_flow_put *put = &op->dpif_op.u.flow_put; |
501f8d1f | 3790 | |
c84451a6 EJ |
3791 | subfacet->path = want_path; |
3792 | ||
bbafd73b | 3793 | op->xout_garbage = false; |
c2b565b5 | 3794 | op->dpif_op.type = DPIF_OP_FLOW_PUT; |
501f8d1f BP |
3795 | put->flags = DPIF_FP_CREATE | DPIF_FP_MODIFY; |
3796 | put->key = miss->key; | |
3797 | put->key_len = miss->key_len; | |
6a7e895f | 3798 | if (want_path == SF_FAST_PATH) { |
bbafd73b EJ |
3799 | put->actions = facet->xout.odp_actions.data; |
3800 | put->actions_len = facet->xout.odp_actions.size; | |
6a7e895f | 3801 | } else { |
bbafd73b EJ |
3802 | compose_slow_path(ofproto, &facet->flow, facet->xout.slow, |
3803 | op->slow_stub, sizeof op->slow_stub, | |
6a7e895f BP |
3804 | &put->actions, &put->actions_len); |
3805 | } | |
501f8d1f BP |
3806 | put->stats = NULL; |
3807 | } | |
3808 | } | |
3809 | ||
acf60855 JP |
3810 | /* Handles flow miss 'miss'. May add any required datapath operations |
3811 | * to 'ops', incrementing '*n_ops' for each new op. */ | |
9d6ac44e | 3812 | static void |
acf60855 JP |
3813 | handle_flow_miss(struct flow_miss *miss, struct flow_miss_op *ops, |
3814 | size_t *n_ops) | |
9d6ac44e | 3815 | { |
acf60855 | 3816 | struct ofproto_dpif *ofproto = miss->ofproto; |
9d6ac44e | 3817 | struct facet *facet; |
459b16a1 | 3818 | long long int now; |
9d6ac44e BP |
3819 | uint32_t hash; |
3820 | ||
3821 | /* The caller must ensure that miss->hmap_node.hash contains | |
3822 | * flow_hash(miss->flow, 0). */ | |
3823 | hash = miss->hmap_node.hash; | |
3824 | ||
3825 | facet = facet_lookup_valid(ofproto, &miss->flow, hash); | |
3826 | if (!facet) { | |
ba33dd03 EJ |
3827 | /* There does not exist a bijection between 'struct flow' and datapath |
3828 | * flow keys with fitness ODP_FIT_TO_LITTLE. This breaks a fundamental | |
3829 | * assumption used throughout the facet and subfacet handling code. | |
3830 | * Since we have to handle these misses in userspace anyway, we simply | |
ec9f40dc | 3831 | * skip facet creation, avoiding the problem altogether. */ |
ba33dd03 EJ |
3832 | if (miss->key_fitness == ODP_FIT_TOO_LITTLE |
3833 | || !flow_miss_should_make_facet(ofproto, miss, hash)) { | |
4dff9097 | 3834 | handle_flow_miss_without_facet(miss, ops, n_ops); |
9d6ac44e BP |
3835 | return; |
3836 | } | |
3837 | ||
4dff9097 | 3838 | facet = facet_create(miss, hash); |
459b16a1 BP |
3839 | now = facet->used; |
3840 | } else { | |
3841 | now = time_msec(); | |
9d6ac44e | 3842 | } |
459b16a1 | 3843 | handle_flow_miss_with_facet(miss, facet, now, ops, n_ops); |
9d6ac44e BP |
3844 | } |
3845 | ||
8f73d537 EJ |
3846 | static struct drop_key * |
3847 | drop_key_lookup(const struct dpif_backer *backer, const struct nlattr *key, | |
3848 | size_t key_len) | |
3849 | { | |
3850 | struct drop_key *drop_key; | |
3851 | ||
3852 | HMAP_FOR_EACH_WITH_HASH (drop_key, hmap_node, hash_bytes(key, key_len, 0), | |
3853 | &backer->drop_keys) { | |
3854 | if (drop_key->key_len == key_len | |
3855 | && !memcmp(drop_key->key, key, key_len)) { | |
3856 | return drop_key; | |
3857 | } | |
3858 | } | |
3859 | return NULL; | |
3860 | } | |
3861 | ||
3862 | static void | |
3863 | drop_key_clear(struct dpif_backer *backer) | |
3864 | { | |
3865 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15); | |
3866 | struct drop_key *drop_key, *next; | |
3867 | ||
3868 | HMAP_FOR_EACH_SAFE (drop_key, next, hmap_node, &backer->drop_keys) { | |
3869 | int error; | |
3870 | ||
3871 | error = dpif_flow_del(backer->dpif, drop_key->key, drop_key->key_len, | |
3872 | NULL); | |
3873 | if (error && !VLOG_DROP_WARN(&rl)) { | |
3874 | struct ds ds = DS_EMPTY_INITIALIZER; | |
3875 | odp_flow_key_format(drop_key->key, drop_key->key_len, &ds); | |
3876 | VLOG_WARN("Failed to delete drop key (%s) (%s)", strerror(error), | |
3877 | ds_cstr(&ds)); | |
3878 | ds_destroy(&ds); | |
3879 | } | |
3880 | ||
3881 | hmap_remove(&backer->drop_keys, &drop_key->hmap_node); | |
3882 | free(drop_key->key); | |
3883 | free(drop_key); | |
3884 | } | |
3885 | } | |
3886 | ||
e09ee259 EJ |
3887 | /* Given a datpath, packet, and flow metadata ('backer', 'packet', and 'key' |
3888 | * respectively), populates 'flow' with the result of odp_flow_key_to_flow(). | |
3889 | * Optionally, if nonnull, populates 'fitnessp' with the fitness of 'flow' as | |
3890 | * returned by odp_flow_key_to_flow(). Also, optionally populates 'ofproto' | |
3891 | * with the ofproto_dpif, and 'odp_in_port' with the datapath in_port, that | |
3892 | * 'packet' ingressed. | |
e2a6ca36 | 3893 | * |
e09ee259 EJ |
3894 | * If 'ofproto' is nonnull, requires 'flow''s in_port to exist. Otherwise sets |
3895 | * 'flow''s in_port to OFPP_NONE. | |
3896 | * | |
3897 | * This function does post-processing on data returned from | |
3898 | * odp_flow_key_to_flow() to help make VLAN splinters transparent to the rest | |
3899 | * of the upcall processing logic. In particular, if the extracted in_port is | |
3900 | * a VLAN splinter port, it replaces flow->in_port by the "real" port, sets | |
3901 | * flow->vlan_tci correctly for the VLAN of the VLAN splinter port, and pushes | |
3902 | * a VLAN header onto 'packet' (if it is nonnull). | |
3903 | * | |
c3f6c502 JP |
3904 | * Optionally, if 'initial_vals' is nonnull, sets 'initial_vals->vlan_tci' |
3905 | * to the VLAN TCI with which the packet was really received, that is, the | |
3906 | * actual VLAN TCI extracted by odp_flow_key_to_flow(). (This differs from | |
3907 | * the value returned in flow->vlan_tci only for packets received on | |
715b48aa | 3908 | * VLAN splinters.) |
e09ee259 | 3909 | * |
b9ad7294 EJ |
3910 | * Similarly, this function also includes some logic to help with tunnels. It |
3911 | * may modify 'flow' as necessary to make the tunneling implementation | |
3912 | * transparent to the upcall processing logic. | |
3913 | * | |
e09ee259 EJ |
3914 | * Returns 0 if successful, ENODEV if the parsed flow has no associated ofport, |
3915 | * or some other positive errno if there are other problems. */ | |
3916 | static int | |
3917 | ofproto_receive(const struct dpif_backer *backer, struct ofpbuf *packet, | |
3918 | const struct nlattr *key, size_t key_len, | |
3919 | struct flow *flow, enum odp_key_fitness *fitnessp, | |
3920 | struct ofproto_dpif **ofproto, uint32_t *odp_in_port, | |
14f94f9a | 3921 | struct initial_vals *initial_vals) |
e84173dc | 3922 | { |
e09ee259 EJ |
3923 | const struct ofport_dpif *port; |
3924 | enum odp_key_fitness fitness; | |
b9ad7294 | 3925 | int error = ENODEV; |
e09ee259 EJ |
3926 | |
3927 | fitness = odp_flow_key_to_flow(key, key_len, flow); | |
e84173dc | 3928 | if (fitness == ODP_FIT_ERROR) { |
e09ee259 EJ |
3929 | error = EINVAL; |
3930 | goto exit; | |
3931 | } | |
3932 | ||
14f94f9a JP |
3933 | if (initial_vals) { |
3934 | initial_vals->vlan_tci = flow->vlan_tci; | |
e84173dc | 3935 | } |
e84173dc | 3936 | |
e09ee259 EJ |
3937 | if (odp_in_port) { |
3938 | *odp_in_port = flow->in_port; | |
3939 | } | |
3940 | ||
3abe1835 BP |
3941 | port = (tnl_port_should_receive(flow) |
3942 | ? ofport_dpif_cast(tnl_port_receive(flow)) | |
3943 | : odp_port_to_ofport(backer, flow->in_port)); | |
3944 | flow->in_port = port ? port->up.ofp_port : OFPP_NONE; | |
3945 | if (!port) { | |
3946 | goto exit; | |
3947 | } | |
3948 | ||
3949 | /* XXX: Since the tunnel module is not scoped per backer, for a tunnel port | |
3950 | * it's theoretically possible that we'll receive an ofport belonging to an | |
3951 | * entirely different datapath. In practice, this can't happen because no | |
3952 | * platforms has two separate datapaths which each support tunneling. */ | |
3953 | ovs_assert(ofproto_dpif_cast(port->up.ofproto)->backer == backer); | |
3954 | ||
3955 | if (vsp_adjust_flow(ofproto_dpif_cast(port->up.ofproto), flow)) { | |
3956 | if (packet) { | |
3957 | /* Make the packet resemble the flow, so that it gets sent to | |
3958 | * an OpenFlow controller properly, so that it looks correct | |
3959 | * for sFlow, and so that flow_extract() will get the correct | |
3960 | * vlan_tci if it is called on 'packet'. | |
3961 | * | |
3962 | * The allocated space inside 'packet' probably also contains | |
3963 | * 'key', that is, both 'packet' and 'key' are probably part of | |
3964 | * a struct dpif_upcall (see the large comment on that | |
3965 | * structure definition), so pushing data on 'packet' is in | |
3966 | * general not a good idea since it could overwrite 'key' or | |
3967 | * free it as a side effect. However, it's OK in this special | |
3968 | * case because we know that 'packet' is inside a Netlink | |
3969 | * attribute: pushing 4 bytes will just overwrite the 4-byte | |
3970 | * "struct nlattr", which is fine since we don't need that | |
3971 | * header anymore. */ | |
3972 | eth_push_vlan(packet, flow->vlan_tci); | |
3973 | } | |
3974 | /* We can't reproduce 'key' from 'flow'. */ | |
3975 | fitness = fitness == ODP_FIT_PERFECT ? ODP_FIT_TOO_MUCH : fitness; | |
52a90c29 | 3976 | } |
e09ee259 | 3977 | error = 0; |
52a90c29 | 3978 | |
b9ad7294 EJ |
3979 | if (ofproto) { |
3980 | *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
3981 | } | |
3982 | ||
e09ee259 EJ |
3983 | exit: |
3984 | if (fitnessp) { | |
3985 | *fitnessp = fitness; | |
3986 | } | |
3987 | return error; | |
e84173dc BP |
3988 | } |
3989 | ||
501f8d1f | 3990 | static void |
acf60855 | 3991 | handle_miss_upcalls(struct dpif_backer *backer, struct dpif_upcall *upcalls, |
501f8d1f BP |
3992 | size_t n_upcalls) |
3993 | { | |
3994 | struct dpif_upcall *upcall; | |
b23cdad9 BP |
3995 | struct flow_miss *miss; |
3996 | struct flow_miss misses[FLOW_MISS_MAX_BATCH]; | |
501f8d1f | 3997 | struct flow_miss_op flow_miss_ops[FLOW_MISS_MAX_BATCH * 2]; |
c2b565b5 | 3998 | struct dpif_op *dpif_ops[FLOW_MISS_MAX_BATCH * 2]; |
501f8d1f | 3999 | struct hmap todo; |
b23cdad9 | 4000 | int n_misses; |
501f8d1f BP |
4001 | size_t n_ops; |
4002 | size_t i; | |
4003 | ||
4004 | if (!n_upcalls) { | |
4005 | return; | |
4006 | } | |
4007 | ||
4008 | /* Construct the to-do list. | |
4009 | * | |
4010 | * This just amounts to extracting the flow from each packet and sticking | |
4011 | * the packets that have the same flow in the same "flow_miss" structure so | |
4012 | * that we can process them together. */ | |
4013 | hmap_init(&todo); | |
b23cdad9 | 4014 | n_misses = 0; |
501f8d1f | 4015 | for (upcall = upcalls; upcall < &upcalls[n_upcalls]; upcall++) { |
b23cdad9 BP |
4016 | struct flow_miss *miss = &misses[n_misses]; |
4017 | struct flow_miss *existing_miss; | |
acf60855 | 4018 | struct ofproto_dpif *ofproto; |
a088a1ff | 4019 | uint32_t odp_in_port; |
1d446463 | 4020 | struct flow flow; |
b23cdad9 | 4021 | uint32_t hash; |
e09ee259 | 4022 | int error; |
501f8d1f | 4023 | |
e09ee259 EJ |
4024 | error = ofproto_receive(backer, upcall->packet, upcall->key, |
4025 | upcall->key_len, &flow, &miss->key_fitness, | |
14f94f9a | 4026 | &ofproto, &odp_in_port, &miss->initial_vals); |
e09ee259 | 4027 | if (error == ENODEV) { |
8f73d537 EJ |
4028 | struct drop_key *drop_key; |
4029 | ||
c3385516 AW |
4030 | /* Received packet on datapath port for which we couldn't |
4031 | * associate an ofproto. This can happen if a port is removed | |
4032 | * while traffic is being received. Print a rate-limited message | |
8f73d537 EJ |
4033 | * in case it happens frequently. Install a drop flow so |
4034 | * that future packets of the flow are inexpensively dropped | |
4035 | * in the kernel. */ | |
c3385516 AW |
4036 | VLOG_INFO_RL(&rl, "received packet on unassociated datapath port " |
4037 | "%"PRIu32, odp_in_port); | |
8f73d537 EJ |
4038 | |
4039 | drop_key = drop_key_lookup(backer, upcall->key, upcall->key_len); | |
4040 | if (!drop_key) { | |
4041 | drop_key = xmalloc(sizeof *drop_key); | |
4042 | drop_key->key = xmemdup(upcall->key, upcall->key_len); | |
4043 | drop_key->key_len = upcall->key_len; | |
4044 | ||
4045 | hmap_insert(&backer->drop_keys, &drop_key->hmap_node, | |
4046 | hash_bytes(drop_key->key, drop_key->key_len, 0)); | |
4047 | dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY, | |
4048 | drop_key->key, drop_key->key_len, NULL, 0, NULL); | |
4049 | } | |
4050 | continue; | |
acf60855 | 4051 | } |
e09ee259 | 4052 | if (error) { |
b0f7b9b5 BP |
4053 | continue; |
4054 | } | |
735d7efb AZ |
4055 | |
4056 | ofproto->n_missed++; | |
72e8bf28 | 4057 | flow_extract(upcall->packet, flow.skb_priority, flow.skb_mark, |
1d446463 | 4058 | &flow.tunnel, flow.in_port, &miss->flow); |
501f8d1f | 4059 | |
501f8d1f | 4060 | /* Add other packets to a to-do list. */ |
b23cdad9 | 4061 | hash = flow_hash(&miss->flow, 0); |
ddbc5954 | 4062 | existing_miss = flow_miss_find(&todo, ofproto, &miss->flow, hash); |
b23cdad9 BP |
4063 | if (!existing_miss) { |
4064 | hmap_insert(&todo, &miss->hmap_node, hash); | |
acf60855 | 4065 | miss->ofproto = ofproto; |
b23cdad9 BP |
4066 | miss->key = upcall->key; |
4067 | miss->key_len = upcall->key_len; | |
6a7e895f | 4068 | miss->upcall_type = upcall->type; |
b23cdad9 BP |
4069 | list_init(&miss->packets); |
4070 | ||
4071 | n_misses++; | |
4072 | } else { | |
4073 | miss = existing_miss; | |
4074 | } | |
501f8d1f BP |
4075 | list_push_back(&miss->packets, &upcall->packet->list_node); |
4076 | } | |
4077 | ||
4078 | /* Process each element in the to-do list, constructing the set of | |
4079 | * operations to batch. */ | |
4080 | n_ops = 0; | |
33bb0caa | 4081 | HMAP_FOR_EACH (miss, hmap_node, &todo) { |
acf60855 | 4082 | handle_flow_miss(miss, flow_miss_ops, &n_ops); |
abe529af | 4083 | } |
cb22974d | 4084 | ovs_assert(n_ops <= ARRAY_SIZE(flow_miss_ops)); |
501f8d1f BP |
4085 | |
4086 | /* Execute batch. */ | |
4087 | for (i = 0; i < n_ops; i++) { | |
4088 | dpif_ops[i] = &flow_miss_ops[i].dpif_op; | |
4089 | } | |
acf60855 | 4090 | dpif_operate(backer->dpif, dpif_ops, n_ops); |
501f8d1f | 4091 | |
c84451a6 | 4092 | /* Free memory. */ |
501f8d1f | 4093 | for (i = 0; i < n_ops; i++) { |
bbafd73b EJ |
4094 | if (flow_miss_ops[i].xout_garbage) { |
4095 | xlate_out_uninit(&flow_miss_ops[i].xout); | |
4096 | } | |
501f8d1f | 4097 | } |
33bb0caa | 4098 | hmap_destroy(&todo); |
abe529af BP |
4099 | } |
4100 | ||
29089a54 RL |
4101 | static enum { SFLOW_UPCALL, MISS_UPCALL, BAD_UPCALL, FLOW_SAMPLE_UPCALL, |
4102 | IPFIX_UPCALL } | |
6a7e895f BP |
4103 | classify_upcall(const struct dpif_upcall *upcall) |
4104 | { | |
29089a54 | 4105 | size_t userdata_len; |
6a7e895f BP |
4106 | union user_action_cookie cookie; |
4107 | ||
4108 | /* First look at the upcall type. */ | |
4109 | switch (upcall->type) { | |
4110 | case DPIF_UC_ACTION: | |
4111 | break; | |
4112 | ||
4113 | case DPIF_UC_MISS: | |
4114 | return MISS_UPCALL; | |
4115 | ||
4116 | case DPIF_N_UC_TYPES: | |
4117 | default: | |
4118 | VLOG_WARN_RL(&rl, "upcall has unexpected type %"PRIu32, upcall->type); | |
4119 | return BAD_UPCALL; | |
4120 | } | |
4121 | ||
4122 | /* "action" upcalls need a closer look. */ | |
e995e3df BP |
4123 | if (!upcall->userdata) { |
4124 | VLOG_WARN_RL(&rl, "action upcall missing cookie"); | |
4125 | return BAD_UPCALL; | |
4126 | } | |
29089a54 RL |
4127 | userdata_len = nl_attr_get_size(upcall->userdata); |
4128 | if (userdata_len < sizeof cookie.type | |
4129 | || userdata_len > sizeof cookie) { | |
e995e3df | 4130 | VLOG_WARN_RL(&rl, "action upcall cookie has unexpected size %zu", |
29089a54 | 4131 | userdata_len); |
e995e3df BP |
4132 | return BAD_UPCALL; |
4133 | } | |
29089a54 RL |
4134 | memset(&cookie, 0, sizeof cookie); |
4135 | memcpy(&cookie, nl_attr_get(upcall->userdata), userdata_len); | |
4136 | if (userdata_len == sizeof cookie.sflow | |
4137 | && cookie.type == USER_ACTION_COOKIE_SFLOW) { | |
6a7e895f | 4138 | return SFLOW_UPCALL; |
29089a54 RL |
4139 | } else if (userdata_len == sizeof cookie.slow_path |
4140 | && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) { | |
6a7e895f | 4141 | return MISS_UPCALL; |
29089a54 RL |
4142 | } else if (userdata_len == sizeof cookie.flow_sample |
4143 | && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) { | |
4144 | return FLOW_SAMPLE_UPCALL; | |
4145 | } else if (userdata_len == sizeof cookie.ipfix | |
4146 | && cookie.type == USER_ACTION_COOKIE_IPFIX) { | |
4147 | return IPFIX_UPCALL; | |
4148 | } else { | |
4149 | VLOG_WARN_RL(&rl, "invalid user cookie of type %"PRIu16 | |
4150 | " and size %zu", cookie.type, userdata_len); | |
6a7e895f BP |
4151 | return BAD_UPCALL; |
4152 | } | |
4153 | } | |
4154 | ||
abe529af | 4155 | static void |
acf60855 | 4156 | handle_sflow_upcall(struct dpif_backer *backer, |
6a7e895f | 4157 | const struct dpif_upcall *upcall) |
abe529af | 4158 | { |
acf60855 | 4159 | struct ofproto_dpif *ofproto; |
1673e0e4 | 4160 | union user_action_cookie cookie; |
e84173dc | 4161 | struct flow flow; |
e1b1d06a | 4162 | uint32_t odp_in_port; |
abe529af | 4163 | |
e09ee259 EJ |
4164 | if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len, |
4165 | &flow, NULL, &ofproto, &odp_in_port, NULL) | |
4166 | || !ofproto->sflow) { | |
e84173dc BP |
4167 | return; |
4168 | } | |
4169 | ||
29089a54 RL |
4170 | memset(&cookie, 0, sizeof cookie); |
4171 | memcpy(&cookie, nl_attr_get(upcall->userdata), sizeof cookie.sflow); | |
e1b1d06a JP |
4172 | dpif_sflow_received(ofproto->sflow, upcall->packet, &flow, |
4173 | odp_in_port, &cookie); | |
6ff686f2 PS |
4174 | } |
4175 | ||
29089a54 RL |
4176 | static void |
4177 | handle_flow_sample_upcall(struct dpif_backer *backer, | |
4178 | const struct dpif_upcall *upcall) | |
4179 | { | |
4180 | struct ofproto_dpif *ofproto; | |
4181 | union user_action_cookie cookie; | |
4182 | struct flow flow; | |
4183 | ||
4184 | if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len, | |
4185 | &flow, NULL, &ofproto, NULL, NULL) | |
4186 | || !ofproto->ipfix) { | |
4187 | return; | |
4188 | } | |
4189 | ||
4190 | memset(&cookie, 0, sizeof cookie); | |
4191 | memcpy(&cookie, nl_attr_get(upcall->userdata), sizeof cookie.flow_sample); | |
4192 | ||
4193 | /* The flow reflects exactly the contents of the packet. Sample | |
4194 | * the packet using it. */ | |
4195 | dpif_ipfix_flow_sample(ofproto->ipfix, upcall->packet, &flow, | |
4196 | cookie.flow_sample.collector_set_id, | |
4197 | cookie.flow_sample.probability, | |
4198 | cookie.flow_sample.obs_domain_id, | |
4199 | cookie.flow_sample.obs_point_id); | |
4200 | } | |
4201 | ||
4202 | static void | |
4203 | handle_ipfix_upcall(struct dpif_backer *backer, | |
4204 | const struct dpif_upcall *upcall) | |
4205 | { | |
4206 | struct ofproto_dpif *ofproto; | |
4207 | struct flow flow; | |
4208 | ||
4209 | if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len, | |
4210 | &flow, NULL, &ofproto, NULL, NULL) | |
4211 | || !ofproto->ipfix) { | |
4212 | return; | |
4213 | } | |
4214 | ||
4215 | /* The flow reflects exactly the contents of the packet. Sample | |
4216 | * the packet using it. */ | |
4217 | dpif_ipfix_bridge_sample(ofproto->ipfix, upcall->packet, &flow); | |
4218 | } | |
4219 | ||
9b16c439 | 4220 | static int |
acf60855 | 4221 | handle_upcalls(struct dpif_backer *backer, unsigned int max_batch) |
6ff686f2 | 4222 | { |
9b16c439 | 4223 | struct dpif_upcall misses[FLOW_MISS_MAX_BATCH]; |
90a7c55e BP |
4224 | struct ofpbuf miss_bufs[FLOW_MISS_MAX_BATCH]; |
4225 | uint64_t miss_buf_stubs[FLOW_MISS_MAX_BATCH][4096 / 8]; | |
4226 | int n_processed; | |
9b16c439 BP |
4227 | int n_misses; |
4228 | int i; | |
abe529af | 4229 | |
cb22974d | 4230 | ovs_assert(max_batch <= FLOW_MISS_MAX_BATCH); |
abe529af | 4231 | |
9b16c439 | 4232 | n_misses = 0; |
90a7c55e | 4233 | for (n_processed = 0; n_processed < max_batch; n_processed++) { |
9b16c439 | 4234 | struct dpif_upcall *upcall = &misses[n_misses]; |
90a7c55e | 4235 | struct ofpbuf *buf = &miss_bufs[n_misses]; |
9b16c439 BP |
4236 | int error; |
4237 | ||
90a7c55e BP |
4238 | ofpbuf_use_stub(buf, miss_buf_stubs[n_misses], |
4239 | sizeof miss_buf_stubs[n_misses]); | |
acf60855 | 4240 | error = dpif_recv(backer->dpif, upcall, buf); |
9b16c439 | 4241 | if (error) { |
90a7c55e | 4242 | ofpbuf_uninit(buf); |
9b16c439 BP |
4243 | break; |
4244 | } | |
4245 | ||
6a7e895f BP |
4246 | switch (classify_upcall(upcall)) { |
4247 | case MISS_UPCALL: | |
9b16c439 BP |
4248 | /* Handle it later. */ |
4249 | n_misses++; | |
4250 | break; | |
4251 | ||
6a7e895f | 4252 | case SFLOW_UPCALL: |
acf60855 | 4253 | handle_sflow_upcall(backer, upcall); |
6a7e895f BP |
4254 | ofpbuf_uninit(buf); |
4255 | break; | |
4256 | ||
29089a54 RL |
4257 | case FLOW_SAMPLE_UPCALL: |
4258 | handle_flow_sample_upcall(backer, upcall); | |
4259 | ofpbuf_uninit(buf); | |
4260 | break; | |
4261 | ||
4262 | case IPFIX_UPCALL: | |
4263 | handle_ipfix_upcall(backer, upcall); | |
4264 | ofpbuf_uninit(buf); | |
4265 | break; | |
4266 | ||
6a7e895f BP |
4267 | case BAD_UPCALL: |
4268 | ofpbuf_uninit(buf); | |
9b16c439 BP |
4269 | break; |
4270 | } | |
abe529af | 4271 | } |
9b16c439 | 4272 | |
6a7e895f | 4273 | /* Handle deferred MISS_UPCALL processing. */ |
acf60855 | 4274 | handle_miss_upcalls(backer, misses, n_misses); |
90a7c55e BP |
4275 | for (i = 0; i < n_misses; i++) { |
4276 | ofpbuf_uninit(&miss_bufs[i]); | |
4277 | } | |
9b16c439 | 4278 | |
90a7c55e | 4279 | return n_processed; |
abe529af BP |
4280 | } |
4281 | \f | |
4282 | /* Flow expiration. */ | |
4283 | ||
b0f7b9b5 | 4284 | static int subfacet_max_idle(const struct ofproto_dpif *); |
acf60855 | 4285 | static void update_stats(struct dpif_backer *); |
abe529af | 4286 | static void rule_expire(struct rule_dpif *); |
b0f7b9b5 | 4287 | static void expire_subfacets(struct ofproto_dpif *, int dp_max_idle); |
abe529af BP |
4288 | |
4289 | /* This function is called periodically by run(). Its job is to collect | |
4290 | * updates for the flows that have been installed into the datapath, most | |
4291 | * importantly when they last were used, and then use that information to | |
4292 | * expire flows that have not been used recently. | |
4293 | * | |
4294 | * Returns the number of milliseconds after which it should be called again. */ | |
4295 | static int | |
acf60855 | 4296 | expire(struct dpif_backer *backer) |
abe529af | 4297 | { |
acf60855 JP |
4298 | struct ofproto_dpif *ofproto; |
4299 | int max_idle = INT32_MAX; | |
abe529af | 4300 | |
8f73d537 EJ |
4301 | /* Periodically clear out the drop keys in an effort to keep them |
4302 | * relatively few. */ | |
4303 | drop_key_clear(backer); | |
4304 | ||
acf60855 JP |
4305 | /* Update stats for each flow in the backer. */ |
4306 | update_stats(backer); | |
abe529af | 4307 | |
acf60855 | 4308 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { |
e503cc19 | 4309 | struct rule *rule, *next_rule; |
acf60855 | 4310 | int dp_max_idle; |
abe529af | 4311 | |
acf60855 JP |
4312 | if (ofproto->backer != backer) { |
4313 | continue; | |
4314 | } | |
0697b5c3 | 4315 | |
655ab909 AZ |
4316 | /* Keep track of the max number of flows per ofproto_dpif. */ |
4317 | update_max_subfacet_count(ofproto); | |
4318 | ||
acf60855 JP |
4319 | /* Expire subfacets that have been idle too long. */ |
4320 | dp_max_idle = subfacet_max_idle(ofproto); | |
4321 | expire_subfacets(ofproto, dp_max_idle); | |
4322 | ||
4323 | max_idle = MIN(max_idle, dp_max_idle); | |
4324 | ||
4325 | /* Expire OpenFlow flows whose idle_timeout or hard_timeout | |
4326 | * has passed. */ | |
e503cc19 SH |
4327 | LIST_FOR_EACH_SAFE (rule, next_rule, expirable, |
4328 | &ofproto->up.expirable) { | |
4329 | rule_expire(rule_dpif_cast(rule)); | |
0697b5c3 | 4330 | } |
abe529af | 4331 | |
acf60855 JP |
4332 | /* All outstanding data in existing flows has been accounted, so it's a |
4333 | * good time to do bond rebalancing. */ | |
4334 | if (ofproto->has_bonded_bundles) { | |
4335 | struct ofbundle *bundle; | |
abe529af | 4336 | |
acf60855 JP |
4337 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { |
4338 | if (bundle->bond) { | |
2cc3c58e | 4339 | bond_rebalance(bundle->bond, &backer->revalidate_set); |
acf60855 | 4340 | } |
abe529af BP |
4341 | } |
4342 | } | |
4343 | } | |
4344 | ||
acf60855 | 4345 | return MIN(max_idle, 1000); |
abe529af BP |
4346 | } |
4347 | ||
a218c879 BP |
4348 | /* Updates flow table statistics given that the datapath just reported 'stats' |
4349 | * as 'subfacet''s statistics. */ | |
4350 | static void | |
4351 | update_subfacet_stats(struct subfacet *subfacet, | |
4352 | const struct dpif_flow_stats *stats) | |
4353 | { | |
4354 | struct facet *facet = subfacet->facet; | |
787f3d59 | 4355 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
9dfb1f78 EJ |
4356 | struct dpif_flow_stats diff; |
4357 | ||
4358 | diff.tcp_flags = stats->tcp_flags; | |
4359 | diff.used = stats->used; | |
a218c879 BP |
4360 | |
4361 | if (stats->n_packets >= subfacet->dp_packet_count) { | |
9dfb1f78 | 4362 | diff.n_packets = stats->n_packets - subfacet->dp_packet_count; |
a218c879 BP |
4363 | } else { |
4364 | VLOG_WARN_RL(&rl, "unexpected packet count from the datapath"); | |
9dfb1f78 | 4365 | diff.n_packets = 0; |
a218c879 BP |
4366 | } |
4367 | ||
4368 | if (stats->n_bytes >= subfacet->dp_byte_count) { | |
9dfb1f78 | 4369 | diff.n_bytes = stats->n_bytes - subfacet->dp_byte_count; |
a218c879 BP |
4370 | } else { |
4371 | VLOG_WARN_RL(&rl, "unexpected byte count from datapath"); | |
9dfb1f78 | 4372 | diff.n_bytes = 0; |
a218c879 BP |
4373 | } |
4374 | ||
787f3d59 | 4375 | ofproto->n_hit += diff.n_packets; |
a218c879 BP |
4376 | subfacet->dp_packet_count = stats->n_packets; |
4377 | subfacet->dp_byte_count = stats->n_bytes; | |
9dfb1f78 | 4378 | subfacet_update_stats(subfacet, &diff); |
a218c879 | 4379 | |
a218c879 BP |
4380 | if (facet->accounted_bytes < facet->byte_count) { |
4381 | facet_learn(facet); | |
4382 | facet_account(facet); | |
4383 | facet->accounted_bytes = facet->byte_count; | |
4384 | } | |
a218c879 BP |
4385 | } |
4386 | ||
4387 | /* 'key' with length 'key_len' bytes is a flow in 'dpif' that we know nothing | |
4388 | * about, or a flow that shouldn't be installed but was anyway. Delete it. */ | |
4389 | static void | |
acf60855 | 4390 | delete_unexpected_flow(struct ofproto_dpif *ofproto, |
a218c879 BP |
4391 | const struct nlattr *key, size_t key_len) |
4392 | { | |
4393 | if (!VLOG_DROP_WARN(&rl)) { | |
4394 | struct ds s; | |
4395 | ||
4396 | ds_init(&s); | |
4397 | odp_flow_key_format(key, key_len, &s); | |
acf60855 | 4398 | VLOG_WARN("unexpected flow on %s: %s", ofproto->up.name, ds_cstr(&s)); |
a218c879 BP |
4399 | ds_destroy(&s); |
4400 | } | |
4401 | ||
4402 | COVERAGE_INC(facet_unexpected); | |
acf60855 | 4403 | dpif_flow_del(ofproto->backer->dpif, key, key_len, NULL); |
a218c879 BP |
4404 | } |
4405 | ||
abe529af BP |
4406 | /* Update 'packet_count', 'byte_count', and 'used' members of installed facets. |
4407 | * | |
4408 | * This function also pushes statistics updates to rules which each facet | |
4409 | * resubmits into. Generally these statistics will be accurate. However, if a | |
4410 | * facet changes the rule it resubmits into at some time in between | |
4411 | * update_stats() runs, it is possible that statistics accrued to the | |
4412 | * old rule will be incorrectly attributed to the new rule. This could be | |
4413 | * avoided by calling update_stats() whenever rules are created or | |
4414 | * deleted. However, the performance impact of making so many calls to the | |
4415 | * datapath do not justify the benefit of having perfectly accurate statistics. | |
735d7efb AZ |
4416 | * |
4417 | * In addition, this function maintains per ofproto flow hit counts. The patch | |
4418 | * port is not treated specially. e.g. A packet ingress from br0 patched into | |
4419 | * br1 will increase the hit count of br0 by 1, however, does not affect | |
4420 | * the hit or miss counts of br1. | |
abe529af BP |
4421 | */ |
4422 | static void | |
acf60855 | 4423 | update_stats(struct dpif_backer *backer) |
abe529af BP |
4424 | { |
4425 | const struct dpif_flow_stats *stats; | |
4426 | struct dpif_flow_dump dump; | |
4427 | const struct nlattr *key; | |
3af56aef | 4428 | struct ofproto_dpif *ofproto; |
abe529af BP |
4429 | size_t key_len; |
4430 | ||
acf60855 | 4431 | dpif_flow_dump_start(&dump, backer->dpif); |
abe529af | 4432 | while (dpif_flow_dump_next(&dump, &key, &key_len, NULL, NULL, &stats)) { |
acf60855 | 4433 | struct flow flow; |
b0f7b9b5 | 4434 | struct subfacet *subfacet; |
acf60855 | 4435 | uint32_t key_hash; |
abe529af | 4436 | |
58c6adda EJ |
4437 | if (ofproto_receive(backer, NULL, key, key_len, &flow, NULL, &ofproto, |
4438 | NULL, NULL)) { | |
acf60855 JP |
4439 | continue; |
4440 | } | |
4441 | ||
655ab909 AZ |
4442 | ofproto->total_subfacet_count += hmap_count(&ofproto->subfacets); |
4443 | ofproto->n_update_stats++; | |
655ab909 | 4444 | |
acf60855 | 4445 | key_hash = odp_flow_key_hash(key, key_len); |
9566abf9 | 4446 | subfacet = subfacet_find(ofproto, key, key_len, key_hash); |
6a7e895f BP |
4447 | switch (subfacet ? subfacet->path : SF_NOT_INSTALLED) { |
4448 | case SF_FAST_PATH: | |
a218c879 | 4449 | update_subfacet_stats(subfacet, stats); |
6a7e895f BP |
4450 | break; |
4451 | ||
4452 | case SF_SLOW_PATH: | |
4453 | /* Stats are updated per-packet. */ | |
4454 | break; | |
4455 | ||
4456 | case SF_NOT_INSTALLED: | |
4457 | default: | |
acf60855 | 4458 | delete_unexpected_flow(ofproto, key, key_len); |
6a7e895f | 4459 | break; |
abe529af | 4460 | } |
8fa4d1d0 | 4461 | run_fast_rl(); |
abe529af BP |
4462 | } |
4463 | dpif_flow_dump_done(&dump); | |
3af56aef AZ |
4464 | |
4465 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
4466 | update_moving_averages(ofproto); | |
4467 | } | |
4468 | ||
abe529af BP |
4469 | } |
4470 | ||
4471 | /* Calculates and returns the number of milliseconds of idle time after which | |
b0f7b9b5 BP |
4472 | * subfacets should expire from the datapath. When a subfacet expires, we fold |
4473 | * its statistics into its facet, and when a facet's last subfacet expires, we | |
4474 | * fold its statistic into its rule. */ | |
abe529af | 4475 | static int |
b0f7b9b5 | 4476 | subfacet_max_idle(const struct ofproto_dpif *ofproto) |
abe529af BP |
4477 | { |
4478 | /* | |
4479 | * Idle time histogram. | |
4480 | * | |
b0f7b9b5 BP |
4481 | * Most of the time a switch has a relatively small number of subfacets. |
4482 | * When this is the case we might as well keep statistics for all of them | |
4483 | * in userspace and to cache them in the kernel datapath for performance as | |
abe529af BP |
4484 | * well. |
4485 | * | |
b0f7b9b5 | 4486 | * As the number of subfacets increases, the memory required to maintain |
abe529af | 4487 | * statistics about them in userspace and in the kernel becomes |
b0f7b9b5 BP |
4488 | * significant. However, with a large number of subfacets it is likely |
4489 | * that only a few of them are "heavy hitters" that consume a large amount | |
4490 | * of bandwidth. At this point, only heavy hitters are worth caching in | |
4491 | * the kernel and maintaining in userspaces; other subfacets we can | |
4492 | * discard. | |
abe529af BP |
4493 | * |
4494 | * The technique used to compute the idle time is to build a histogram with | |
b0f7b9b5 | 4495 | * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each subfacet |
abe529af BP |
4496 | * that is installed in the kernel gets dropped in the appropriate bucket. |
4497 | * After the histogram has been built, we compute the cutoff so that only | |
b0f7b9b5 | 4498 | * the most-recently-used 1% of subfacets (but at least |
084f5290 | 4499 | * ofproto->up.flow_eviction_threshold flows) are kept cached. At least |
b0f7b9b5 BP |
4500 | * the most-recently-used bucket of subfacets is kept, so actually an |
4501 | * arbitrary number of subfacets can be kept in any given expiration run | |
084f5290 SH |
4502 | * (though the next run will delete most of those unless they receive |
4503 | * additional data). | |
abe529af | 4504 | * |
b0f7b9b5 BP |
4505 | * This requires a second pass through the subfacets, in addition to the |
4506 | * pass made by update_stats(), because the former function never looks at | |
4507 | * uninstallable subfacets. | |
abe529af BP |
4508 | */ |
4509 | enum { BUCKET_WIDTH = ROUND_UP(100, TIME_UPDATE_INTERVAL) }; | |
4510 | enum { N_BUCKETS = 5000 / BUCKET_WIDTH }; | |
4511 | int buckets[N_BUCKETS] = { 0 }; | |
f11c1ef4 | 4512 | int total, subtotal, bucket; |
b0f7b9b5 | 4513 | struct subfacet *subfacet; |
abe529af BP |
4514 | long long int now; |
4515 | int i; | |
4516 | ||
b0f7b9b5 | 4517 | total = hmap_count(&ofproto->subfacets); |
084f5290 | 4518 | if (total <= ofproto->up.flow_eviction_threshold) { |
abe529af BP |
4519 | return N_BUCKETS * BUCKET_WIDTH; |
4520 | } | |
4521 | ||
4522 | /* Build histogram. */ | |
4523 | now = time_msec(); | |
b0f7b9b5 BP |
4524 | HMAP_FOR_EACH (subfacet, hmap_node, &ofproto->subfacets) { |
4525 | long long int idle = now - subfacet->used; | |
abe529af BP |
4526 | int bucket = (idle <= 0 ? 0 |
4527 | : idle >= BUCKET_WIDTH * N_BUCKETS ? N_BUCKETS - 1 | |
4528 | : (unsigned int) idle / BUCKET_WIDTH); | |
4529 | buckets[bucket]++; | |
4530 | } | |
4531 | ||
4532 | /* Find the first bucket whose flows should be expired. */ | |
f11c1ef4 SH |
4533 | subtotal = bucket = 0; |
4534 | do { | |
4535 | subtotal += buckets[bucket++]; | |
084f5290 SH |
4536 | } while (bucket < N_BUCKETS && |
4537 | subtotal < MAX(ofproto->up.flow_eviction_threshold, total / 100)); | |
abe529af BP |
4538 | |
4539 | if (VLOG_IS_DBG_ENABLED()) { | |
4540 | struct ds s; | |
4541 | ||
4542 | ds_init(&s); | |
4543 | ds_put_cstr(&s, "keep"); | |
4544 | for (i = 0; i < N_BUCKETS; i++) { | |
4545 | if (i == bucket) { | |
4546 | ds_put_cstr(&s, ", drop"); | |
4547 | } | |
4548 | if (buckets[i]) { | |
4549 | ds_put_format(&s, " %d:%d", i * BUCKET_WIDTH, buckets[i]); | |
4550 | } | |
4551 | } | |
4552 | VLOG_INFO("%s: %s (msec:count)", ofproto->up.name, ds_cstr(&s)); | |
4553 | ds_destroy(&s); | |
4554 | } | |
4555 | ||
4556 | return bucket * BUCKET_WIDTH; | |
4557 | } | |
4558 | ||
abe529af | 4559 | static void |
b0f7b9b5 | 4560 | expire_subfacets(struct ofproto_dpif *ofproto, int dp_max_idle) |
abe529af | 4561 | { |
625b0720 BP |
4562 | /* Cutoff time for most flows. */ |
4563 | long long int normal_cutoff = time_msec() - dp_max_idle; | |
4564 | ||
4565 | /* We really want to keep flows for special protocols around, so use a more | |
4566 | * conservative cutoff. */ | |
4567 | long long int special_cutoff = time_msec() - 10000; | |
b99d3cee | 4568 | |
b0f7b9b5 | 4569 | struct subfacet *subfacet, *next_subfacet; |
1d85f9e5 | 4570 | struct subfacet *batch[SUBFACET_DESTROY_MAX_BATCH]; |
b99d3cee | 4571 | int n_batch; |
abe529af | 4572 | |
b99d3cee | 4573 | n_batch = 0; |
b0f7b9b5 BP |
4574 | HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node, |
4575 | &ofproto->subfacets) { | |
625b0720 BP |
4576 | long long int cutoff; |
4577 | ||
bbafd73b EJ |
4578 | cutoff = (subfacet->facet->xout.slow & (SLOW_CFM | SLOW_BFD | SLOW_LACP |
4579 | | SLOW_STP) | |
625b0720 BP |
4580 | ? special_cutoff |
4581 | : normal_cutoff); | |
b0f7b9b5 | 4582 | if (subfacet->used < cutoff) { |
6a7e895f | 4583 | if (subfacet->path != SF_NOT_INSTALLED) { |
b99d3cee | 4584 | batch[n_batch++] = subfacet; |
1d85f9e5 JP |
4585 | if (n_batch >= SUBFACET_DESTROY_MAX_BATCH) { |
4586 | subfacet_destroy_batch(ofproto, batch, n_batch); | |
b99d3cee BP |
4587 | n_batch = 0; |
4588 | } | |
4589 | } else { | |
4590 | subfacet_destroy(subfacet); | |
4591 | } | |
abe529af BP |
4592 | } |
4593 | } | |
b99d3cee BP |
4594 | |
4595 | if (n_batch > 0) { | |
1d85f9e5 | 4596 | subfacet_destroy_batch(ofproto, batch, n_batch); |
b99d3cee | 4597 | } |
abe529af BP |
4598 | } |
4599 | ||
4600 | /* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules, | |
4601 | * then delete it entirely. */ | |
4602 | static void | |
4603 | rule_expire(struct rule_dpif *rule) | |
4604 | { | |
abe529af BP |
4605 | struct facet *facet, *next_facet; |
4606 | long long int now; | |
4607 | uint8_t reason; | |
4608 | ||
e2a3d183 BP |
4609 | if (rule->up.pending) { |
4610 | /* We'll have to expire it later. */ | |
4611 | return; | |
4612 | } | |
4613 | ||
abe529af BP |
4614 | /* Has 'rule' expired? */ |
4615 | now = time_msec(); | |
4616 | if (rule->up.hard_timeout | |
308881af | 4617 | && now > rule->up.modified + rule->up.hard_timeout * 1000) { |
abe529af | 4618 | reason = OFPRR_HARD_TIMEOUT; |
8ea6ac3e | 4619 | } else if (rule->up.idle_timeout |
1745cd08 | 4620 | && now > rule->up.used + rule->up.idle_timeout * 1000) { |
abe529af BP |
4621 | reason = OFPRR_IDLE_TIMEOUT; |
4622 | } else { | |
4623 | return; | |
4624 | } | |
4625 | ||
4626 | COVERAGE_INC(ofproto_dpif_expired); | |
4627 | ||
4628 | /* Update stats. (This is a no-op if the rule expired due to an idle | |
4629 | * timeout, because that only happens when the rule has no facets left.) */ | |
4630 | LIST_FOR_EACH_SAFE (facet, next_facet, list_node, &rule->facets) { | |
15baa734 | 4631 | facet_remove(facet); |
abe529af BP |
4632 | } |
4633 | ||
4634 | /* Get rid of the rule. */ | |
4635 | ofproto_rule_expire(&rule->up, reason); | |
4636 | } | |
4637 | \f | |
4638 | /* Facets. */ | |
4639 | ||
4dff9097 | 4640 | /* Creates and returns a new facet based on 'miss'. |
abe529af BP |
4641 | * |
4642 | * The caller must already have determined that no facet with an identical | |
4dff9097 | 4643 | * 'miss->flow' exists in 'miss->ofproto'. |
f3827897 | 4644 | * |
4dff9097 | 4645 | * 'hash' must be the return value of flow_hash(miss->flow, 0). |
2b459b83 | 4646 | * |
b0f7b9b5 BP |
4647 | * The facet will initially have no subfacets. The caller should create (at |
4648 | * least) one subfacet with subfacet_create(). */ | |
abe529af | 4649 | static struct facet * |
4dff9097 | 4650 | facet_create(const struct flow_miss *miss, uint32_t hash) |
abe529af | 4651 | { |
4dff9097 | 4652 | struct ofproto_dpif *ofproto = miss->ofproto; |
bbafd73b | 4653 | struct xlate_in xin; |
abe529af BP |
4654 | struct facet *facet; |
4655 | ||
4656 | facet = xzalloc(sizeof *facet); | |
4657 | facet->used = time_msec(); | |
4dff9097 EJ |
4658 | facet->flow = miss->flow; |
4659 | facet->initial_vals = miss->initial_vals; | |
4660 | facet->rule = rule_dpif_lookup(ofproto, &facet->flow); | |
4661 | facet->learn_rl = time_msec() + 500; | |
4662 | ||
2b459b83 | 4663 | hmap_insert(&ofproto->facets, &facet->hmap_node, hash); |
4dff9097 | 4664 | list_push_back(&facet->rule->facets, &facet->list_node); |
b0f7b9b5 | 4665 | list_init(&facet->subfacets); |
abe529af BP |
4666 | netflow_flow_init(&facet->nf_flow); |
4667 | netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, facet->used); | |
4668 | ||
bbafd73b EJ |
4669 | xlate_in_init(&xin, ofproto, &facet->flow, &facet->initial_vals, |
4670 | facet->rule, 0, NULL); | |
4671 | xin.may_learn = true; | |
4672 | xlate_actions(&xin, &facet->xout); | |
4673 | facet->nf_flow.output_iface = facet->xout.nf_output_iface; | |
6cf474d7 | 4674 | |
abe529af BP |
4675 | return facet; |
4676 | } | |
4677 | ||
4678 | static void | |
4679 | facet_free(struct facet *facet) | |
4680 | { | |
4dff9097 | 4681 | if (facet) { |
bbafd73b | 4682 | xlate_out_uninit(&facet->xout); |
4dff9097 EJ |
4683 | free(facet); |
4684 | } | |
abe529af BP |
4685 | } |
4686 | ||
3d9e05f8 | 4687 | /* Executes, within 'ofproto', the 'n_actions' actions in 'actions' on |
0a740f48 | 4688 | * 'packet', which arrived on 'in_port'. */ |
3d9e05f8 BP |
4689 | static bool |
4690 | execute_odp_actions(struct ofproto_dpif *ofproto, const struct flow *flow, | |
4691 | const struct nlattr *odp_actions, size_t actions_len, | |
4692 | struct ofpbuf *packet) | |
4693 | { | |
4694 | struct odputil_keybuf keybuf; | |
4695 | struct ofpbuf key; | |
4696 | int error; | |
4697 | ||
6ff686f2 | 4698 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); |
e1b1d06a JP |
4699 | odp_flow_key_from_flow(&key, flow, |
4700 | ofp_port_to_odp_port(ofproto, flow->in_port)); | |
80e5eed9 | 4701 | |
acf60855 | 4702 | error = dpif_execute(ofproto->backer->dpif, key.data, key.size, |
6ff686f2 | 4703 | odp_actions, actions_len, packet); |
6ff686f2 | 4704 | return !error; |
abe529af BP |
4705 | } |
4706 | ||
abe529af BP |
4707 | /* Remove 'facet' from 'ofproto' and free up the associated memory: |
4708 | * | |
4709 | * - If 'facet' was installed in the datapath, uninstalls it and updates its | |
b0f7b9b5 | 4710 | * rule's statistics, via subfacet_uninstall(). |
abe529af BP |
4711 | * |
4712 | * - Removes 'facet' from its rule and from ofproto->facets. | |
4713 | */ | |
4714 | static void | |
15baa734 | 4715 | facet_remove(struct facet *facet) |
abe529af | 4716 | { |
15baa734 | 4717 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
b0f7b9b5 BP |
4718 | struct subfacet *subfacet, *next_subfacet; |
4719 | ||
cb22974d | 4720 | ovs_assert(!list_is_empty(&facet->subfacets)); |
551a2f6c BP |
4721 | |
4722 | /* First uninstall all of the subfacets to get final statistics. */ | |
4723 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
15baa734 | 4724 | subfacet_uninstall(subfacet); |
551a2f6c BP |
4725 | } |
4726 | ||
4727 | /* Flush the final stats to the rule. | |
4728 | * | |
4729 | * This might require us to have at least one subfacet around so that we | |
4730 | * can use its actions for accounting in facet_account(), which is why we | |
4731 | * have uninstalled but not yet destroyed the subfacets. */ | |
15baa734 | 4732 | facet_flush_stats(facet); |
551a2f6c BP |
4733 | |
4734 | /* Now we're really all done so destroy everything. */ | |
b0f7b9b5 BP |
4735 | LIST_FOR_EACH_SAFE (subfacet, next_subfacet, list_node, |
4736 | &facet->subfacets) { | |
15baa734 | 4737 | subfacet_destroy__(subfacet); |
b0f7b9b5 | 4738 | } |
abe529af BP |
4739 | hmap_remove(&ofproto->facets, &facet->hmap_node); |
4740 | list_remove(&facet->list_node); | |
4741 | facet_free(facet); | |
4742 | } | |
4743 | ||
3de9590b BP |
4744 | /* Feed information from 'facet' back into the learning table to keep it in |
4745 | * sync with what is actually flowing through the datapath. */ | |
abe529af | 4746 | static void |
3de9590b | 4747 | facet_learn(struct facet *facet) |
abe529af | 4748 | { |
62bd7349 | 4749 | long long int now = time_msec(); |
abe529af | 4750 | |
bbafd73b | 4751 | if (!facet->xout.has_fin_timeout && now < facet->learn_rl) { |
6cf474d7 EJ |
4752 | return; |
4753 | } | |
4754 | ||
62bd7349 | 4755 | facet->learn_rl = now + 500; |
6cf474d7 | 4756 | |
bbafd73b EJ |
4757 | if (!facet->xout.has_learn |
4758 | && !facet->xout.has_normal | |
4759 | && (!facet->xout.has_fin_timeout | |
3de9590b | 4760 | || !(facet->tcp_flags & (TCP_FIN | TCP_RST)))) { |
abe529af BP |
4761 | return; |
4762 | } | |
abe529af | 4763 | |
9dfb1f78 | 4764 | facet_push_stats(facet, true); |
3de9590b BP |
4765 | } |
4766 | ||
4767 | static void | |
4768 | facet_account(struct facet *facet) | |
4769 | { | |
4770 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
3de9590b BP |
4771 | const struct nlattr *a; |
4772 | unsigned int left; | |
4773 | ovs_be16 vlan_tci; | |
4774 | uint64_t n_bytes; | |
abe529af | 4775 | |
bbafd73b | 4776 | if (!facet->xout.has_normal || !ofproto->has_bonded_bundles) { |
abe529af BP |
4777 | return; |
4778 | } | |
3de9590b | 4779 | n_bytes = facet->byte_count - facet->accounted_bytes; |
d78be13b BP |
4780 | |
4781 | /* This loop feeds byte counters to bond_account() for rebalancing to use | |
4782 | * as a basis. We also need to track the actual VLAN on which the packet | |
4783 | * is going to be sent to ensure that it matches the one passed to | |
4784 | * bond_choose_output_slave(). (Otherwise, we will account to the wrong | |
b95fc6ba BP |
4785 | * hash bucket.) |
4786 | * | |
4787 | * We use the actions from an arbitrary subfacet because they should all | |
4788 | * be equally valid for our purpose. */ | |
d78be13b | 4789 | vlan_tci = facet->flow.vlan_tci; |
bbafd73b EJ |
4790 | NL_ATTR_FOR_EACH_UNSAFE (a, left, facet->xout.odp_actions.data, |
4791 | facet->xout.odp_actions.size) { | |
fea393b1 | 4792 | const struct ovs_action_push_vlan *vlan; |
d78be13b | 4793 | struct ofport_dpif *port; |
abe529af | 4794 | |
d78be13b | 4795 | switch (nl_attr_type(a)) { |
df2c07f4 | 4796 | case OVS_ACTION_ATTR_OUTPUT: |
abe529af BP |
4797 | port = get_odp_port(ofproto, nl_attr_get_u32(a)); |
4798 | if (port && port->bundle && port->bundle->bond) { | |
d78be13b | 4799 | bond_account(port->bundle->bond, &facet->flow, |
dc155bff | 4800 | vlan_tci_to_vid(vlan_tci), n_bytes); |
abe529af | 4801 | } |
d78be13b BP |
4802 | break; |
4803 | ||
fea393b1 BP |
4804 | case OVS_ACTION_ATTR_POP_VLAN: |
4805 | vlan_tci = htons(0); | |
d78be13b BP |
4806 | break; |
4807 | ||
fea393b1 BP |
4808 | case OVS_ACTION_ATTR_PUSH_VLAN: |
4809 | vlan = nl_attr_get(a); | |
4810 | vlan_tci = vlan->vlan_tci; | |
d78be13b | 4811 | break; |
abe529af BP |
4812 | } |
4813 | } | |
4814 | } | |
4815 | ||
abe529af BP |
4816 | /* Returns true if the only action for 'facet' is to send to the controller. |
4817 | * (We don't report NetFlow expiration messages for such facets because they | |
4818 | * are just part of the control logic for the network, not real traffic). */ | |
4819 | static bool | |
4820 | facet_is_controller_flow(struct facet *facet) | |
4821 | { | |
f25d0cf3 BP |
4822 | if (facet) { |
4823 | const struct rule *rule = &facet->rule->up; | |
4824 | const struct ofpact *ofpacts = rule->ofpacts; | |
4825 | size_t ofpacts_len = rule->ofpacts_len; | |
4826 | ||
dd30ff28 BP |
4827 | if (ofpacts_len > 0 && |
4828 | ofpacts->type == OFPACT_CONTROLLER && | |
f25d0cf3 BP |
4829 | ofpact_next(ofpacts) >= ofpact_end(ofpacts, ofpacts_len)) { |
4830 | return true; | |
4831 | } | |
4832 | } | |
4833 | return false; | |
abe529af BP |
4834 | } |
4835 | ||
4836 | /* Folds all of 'facet''s statistics into its rule. Also updates the | |
4837 | * accounting ofhook and emits a NetFlow expiration if appropriate. All of | |
4838 | * 'facet''s statistics in the datapath should have been zeroed and folded into | |
4839 | * its packet and byte counts before this function is called. */ | |
4840 | static void | |
15baa734 | 4841 | facet_flush_stats(struct facet *facet) |
abe529af | 4842 | { |
15baa734 | 4843 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
b0f7b9b5 BP |
4844 | struct subfacet *subfacet; |
4845 | ||
4846 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
cb22974d BP |
4847 | ovs_assert(!subfacet->dp_byte_count); |
4848 | ovs_assert(!subfacet->dp_packet_count); | |
b0f7b9b5 | 4849 | } |
abe529af | 4850 | |
9dfb1f78 | 4851 | facet_push_stats(facet, false); |
3de9590b BP |
4852 | if (facet->accounted_bytes < facet->byte_count) { |
4853 | facet_account(facet); | |
4854 | facet->accounted_bytes = facet->byte_count; | |
4855 | } | |
abe529af BP |
4856 | |
4857 | if (ofproto->netflow && !facet_is_controller_flow(facet)) { | |
4858 | struct ofexpired expired; | |
4859 | expired.flow = facet->flow; | |
4860 | expired.packet_count = facet->packet_count; | |
4861 | expired.byte_count = facet->byte_count; | |
4862 | expired.used = facet->used; | |
4863 | netflow_expire(ofproto->netflow, &facet->nf_flow, &expired); | |
4864 | } | |
4865 | ||
abe529af BP |
4866 | /* Reset counters to prevent double counting if 'facet' ever gets |
4867 | * reinstalled. */ | |
bbb5d219 | 4868 | facet_reset_counters(facet); |
abe529af BP |
4869 | |
4870 | netflow_flow_clear(&facet->nf_flow); | |
0e553d9c | 4871 | facet->tcp_flags = 0; |
abe529af BP |
4872 | } |
4873 | ||
4874 | /* Searches 'ofproto''s table of facets for one exactly equal to 'flow'. | |
4875 | * Returns it if found, otherwise a null pointer. | |
4876 | * | |
2b459b83 BP |
4877 | * 'hash' must be the return value of flow_hash(flow, 0). |
4878 | * | |
abe529af BP |
4879 | * The returned facet might need revalidation; use facet_lookup_valid() |
4880 | * instead if that is important. */ | |
4881 | static struct facet * | |
2b459b83 BP |
4882 | facet_find(struct ofproto_dpif *ofproto, |
4883 | const struct flow *flow, uint32_t hash) | |
abe529af BP |
4884 | { |
4885 | struct facet *facet; | |
4886 | ||
2b459b83 | 4887 | HMAP_FOR_EACH_WITH_HASH (facet, hmap_node, hash, &ofproto->facets) { |
abe529af BP |
4888 | if (flow_equal(flow, &facet->flow)) { |
4889 | return facet; | |
4890 | } | |
4891 | } | |
4892 | ||
4893 | return NULL; | |
4894 | } | |
4895 | ||
4896 | /* Searches 'ofproto''s table of facets for one exactly equal to 'flow'. | |
4897 | * Returns it if found, otherwise a null pointer. | |
4898 | * | |
2b459b83 BP |
4899 | * 'hash' must be the return value of flow_hash(flow, 0). |
4900 | * | |
abe529af BP |
4901 | * The returned facet is guaranteed to be valid. */ |
4902 | static struct facet * | |
2b459b83 BP |
4903 | facet_lookup_valid(struct ofproto_dpif *ofproto, const struct flow *flow, |
4904 | uint32_t hash) | |
abe529af | 4905 | { |
c57b2226 | 4906 | struct facet *facet; |
abe529af | 4907 | |
c57b2226 | 4908 | facet = facet_find(ofproto, flow, hash); |
abe529af | 4909 | if (facet |
2cc3c58e EJ |
4910 | && (ofproto->backer->need_revalidate |
4911 | || tag_set_intersects(&ofproto->backer->revalidate_set, | |
bbafd73b | 4912 | facet->xout.tags)) |
5bf64ade | 4913 | && !facet_revalidate(facet)) { |
0305ce1f | 4914 | return NULL; |
abe529af BP |
4915 | } |
4916 | ||
4917 | return facet; | |
4918 | } | |
4919 | ||
6814e51f BP |
4920 | static bool |
4921 | facet_check_consistency(struct facet *facet) | |
4922 | { | |
4923 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15); | |
4924 | ||
4925 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
4926 | ||
bbafd73b EJ |
4927 | struct xlate_out xout; |
4928 | struct xlate_in xin; | |
050ac423 | 4929 | |
6814e51f | 4930 | struct rule_dpif *rule; |
6814e51f BP |
4931 | bool ok; |
4932 | ||
4933 | /* Check the rule for consistency. */ | |
c57b2226 | 4934 | rule = rule_dpif_lookup(ofproto, &facet->flow); |
4dff9097 EJ |
4935 | if (rule != facet->rule) { |
4936 | if (!VLOG_DROP_WARN(&rl)) { | |
4937 | struct ds s = DS_EMPTY_INITIALIZER; | |
6814e51f | 4938 | |
c53e1132 BP |
4939 | flow_format(&s, &facet->flow); |
4940 | ds_put_format(&s, ": facet associated with wrong rule (was " | |
4941 | "table=%"PRIu8",", facet->rule->up.table_id); | |
4942 | cls_rule_format(&facet->rule->up.cr, &s); | |
4943 | ds_put_format(&s, ") (should have been table=%"PRIu8",", | |
4944 | rule->up.table_id); | |
4945 | cls_rule_format(&rule->up.cr, &s); | |
c0a71f4e | 4946 | ds_put_char(&s, ')'); |
6814e51f | 4947 | |
c0a71f4e | 4948 | VLOG_WARN("%s", ds_cstr(&s)); |
c53e1132 BP |
4949 | ds_destroy(&s); |
4950 | } | |
4dff9097 | 4951 | return false; |
6814e51f BP |
4952 | } |
4953 | ||
4954 | /* Check the datapath actions for consistency. */ | |
bbafd73b EJ |
4955 | xlate_in_init(&xin, ofproto, &facet->flow, &facet->initial_vals, rule, |
4956 | 0, NULL); | |
4957 | xlate_actions(&xin, &xout); | |
6814e51f | 4958 | |
bbafd73b EJ |
4959 | ok = ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions) |
4960 | && facet->xout.slow == xout.slow; | |
4dff9097 EJ |
4961 | if (!ok && !VLOG_DROP_WARN(&rl)) { |
4962 | struct ds s = DS_EMPTY_INITIALIZER; | |
c53e1132 | 4963 | |
4dff9097 EJ |
4964 | flow_format(&s, &facet->flow); |
4965 | ds_put_cstr(&s, ": inconsistency in facet"); | |
c53e1132 | 4966 | |
bbafd73b | 4967 | if (!ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)) { |
9616614b | 4968 | ds_put_cstr(&s, " (actions were: "); |
bbafd73b EJ |
4969 | format_odp_actions(&s, facet->xout.odp_actions.data, |
4970 | facet->xout.odp_actions.size); | |
9616614b | 4971 | ds_put_cstr(&s, ") (correct actions: "); |
bbafd73b EJ |
4972 | format_odp_actions(&s, xout.odp_actions.data, |
4973 | xout.odp_actions.size); | |
c0a71f4e | 4974 | ds_put_char(&s, ')'); |
6814e51f | 4975 | } |
4dff9097 | 4976 | |
bbafd73b EJ |
4977 | if (facet->xout.slow != xout.slow) { |
4978 | ds_put_format(&s, " slow path incorrect. should be %d", xout.slow); | |
4dff9097 EJ |
4979 | } |
4980 | ||
c0a71f4e | 4981 | VLOG_WARN("%s", ds_cstr(&s)); |
9616614b | 4982 | ds_destroy(&s); |
6814e51f | 4983 | } |
bbafd73b | 4984 | xlate_out_uninit(&xout); |
6814e51f BP |
4985 | |
4986 | return ok; | |
4987 | } | |
4988 | ||
15baa734 | 4989 | /* Re-searches the classifier for 'facet': |
abe529af BP |
4990 | * |
4991 | * - If the rule found is different from 'facet''s current rule, moves | |
4992 | * 'facet' to the new rule and recompiles its actions. | |
4993 | * | |
4994 | * - If the rule found is the same as 'facet''s current rule, leaves 'facet' | |
f231418e EJ |
4995 | * where it is and recompiles its actions anyway. |
4996 | * | |
4997 | * - If any of 'facet''s subfacets correspond to a new flow according to | |
5bf64ade EJ |
4998 | * ofproto_receive(), 'facet' is removed. |
4999 | * | |
5000 | * Returns true if 'facet' is still valid. False if 'facet' was removed. */ | |
5001 | static bool | |
15baa734 | 5002 | facet_revalidate(struct facet *facet) |
abe529af | 5003 | { |
15baa734 | 5004 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
abe529af | 5005 | struct rule_dpif *new_rule; |
b0f7b9b5 | 5006 | struct subfacet *subfacet; |
bbafd73b EJ |
5007 | struct xlate_out xout; |
5008 | struct xlate_in xin; | |
abe529af BP |
5009 | |
5010 | COVERAGE_INC(facet_revalidate); | |
5011 | ||
f231418e EJ |
5012 | /* Check that child subfacets still correspond to this facet. Tunnel |
5013 | * configuration changes could cause a subfacet's OpenFlow in_port to | |
5014 | * change. */ | |
5015 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
5016 | struct ofproto_dpif *recv_ofproto; | |
5017 | struct flow recv_flow; | |
5018 | int error; | |
5019 | ||
5020 | error = ofproto_receive(ofproto->backer, NULL, subfacet->key, | |
5021 | subfacet->key_len, &recv_flow, NULL, | |
5022 | &recv_ofproto, NULL, NULL); | |
5023 | if (error | |
5024 | || recv_ofproto != ofproto | |
5025 | || memcmp(&recv_flow, &facet->flow, sizeof recv_flow)) { | |
5026 | facet_remove(facet); | |
5bf64ade | 5027 | return false; |
f231418e EJ |
5028 | } |
5029 | } | |
5030 | ||
c57b2226 | 5031 | new_rule = rule_dpif_lookup(ofproto, &facet->flow); |
abe529af | 5032 | |
df2c07f4 | 5033 | /* Calculate new datapath actions. |
abe529af BP |
5034 | * |
5035 | * We do not modify any 'facet' state yet, because we might need to, e.g., | |
5036 | * emit a NetFlow expiration and, if so, we need to have the old state | |
5037 | * around to properly compose it. */ | |
bbafd73b EJ |
5038 | xlate_in_init(&xin, ofproto, &facet->flow, &facet->initial_vals, new_rule, |
5039 | 0, NULL); | |
5040 | xlate_actions(&xin, &xout); | |
4dff9097 EJ |
5041 | |
5042 | /* A facet's slow path reason should only change under dramatic | |
5043 | * circumstances. Rather than try to update everything, it's simpler to | |
5044 | * remove the facet and start over. */ | |
bbafd73b | 5045 | if (facet->xout.slow != xout.slow) { |
4dff9097 | 5046 | facet_remove(facet); |
bbafd73b | 5047 | xlate_out_uninit(&xout); |
4dff9097 EJ |
5048 | return false; |
5049 | } | |
6a7e895f | 5050 | |
bbafd73b | 5051 | if (!ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)) { |
4dff9097 EJ |
5052 | LIST_FOR_EACH(subfacet, list_node, &facet->subfacets) { |
5053 | if (subfacet->path == SF_FAST_PATH) { | |
5054 | struct dpif_flow_stats stats; | |
b95fc6ba | 5055 | |
bbafd73b | 5056 | subfacet_install(subfacet, &xout.odp_actions, &stats); |
4dff9097 | 5057 | subfacet_update_stats(subfacet, &stats); |
b95fc6ba | 5058 | } |
abe529af | 5059 | } |
b95fc6ba | 5060 | |
15baa734 | 5061 | facet_flush_stats(facet); |
4dff9097 | 5062 | |
bbafd73b EJ |
5063 | ofpbuf_clear(&facet->xout.odp_actions); |
5064 | ofpbuf_put(&facet->xout.odp_actions, xout.odp_actions.data, | |
5065 | xout.odp_actions.size); | |
abe529af BP |
5066 | } |
5067 | ||
5068 | /* Update 'facet' now that we've taken care of all the old state. */ | |
bbafd73b EJ |
5069 | facet->xout.tags = xout.tags; |
5070 | facet->xout.slow = xout.slow; | |
5071 | facet->xout.has_learn = xout.has_learn; | |
5072 | facet->xout.has_normal = xout.has_normal; | |
5073 | facet->xout.has_fin_timeout = xout.has_fin_timeout; | |
5074 | facet->xout.nf_output_iface = xout.nf_output_iface; | |
5075 | facet->xout.mirrors = xout.mirrors; | |
5076 | facet->nf_flow.output_iface = facet->xout.nf_output_iface; | |
6a7e895f | 5077 | |
abe529af BP |
5078 | if (facet->rule != new_rule) { |
5079 | COVERAGE_INC(facet_changed_rule); | |
5080 | list_remove(&facet->list_node); | |
5081 | list_push_back(&new_rule->facets, &facet->list_node); | |
5082 | facet->rule = new_rule; | |
5083 | facet->used = new_rule->up.created; | |
9d24de3b | 5084 | facet->prev_used = facet->used; |
abe529af | 5085 | } |
5bf64ade | 5086 | |
bbafd73b | 5087 | xlate_out_uninit(&xout); |
5bf64ade | 5088 | return true; |
abe529af BP |
5089 | } |
5090 | ||
bbb5d219 EJ |
5091 | static void |
5092 | facet_reset_counters(struct facet *facet) | |
5093 | { | |
5094 | facet->packet_count = 0; | |
5095 | facet->byte_count = 0; | |
9d24de3b JP |
5096 | facet->prev_packet_count = 0; |
5097 | facet->prev_byte_count = 0; | |
bbb5d219 EJ |
5098 | facet->accounted_bytes = 0; |
5099 | } | |
5100 | ||
abe529af | 5101 | static void |
9dfb1f78 | 5102 | facet_push_stats(struct facet *facet, bool may_learn) |
abe529af | 5103 | { |
112bc5f4 | 5104 | struct dpif_flow_stats stats; |
abe529af | 5105 | |
cb22974d BP |
5106 | ovs_assert(facet->packet_count >= facet->prev_packet_count); |
5107 | ovs_assert(facet->byte_count >= facet->prev_byte_count); | |
5108 | ovs_assert(facet->used >= facet->prev_used); | |
abe529af | 5109 | |
112bc5f4 BP |
5110 | stats.n_packets = facet->packet_count - facet->prev_packet_count; |
5111 | stats.n_bytes = facet->byte_count - facet->prev_byte_count; | |
5112 | stats.used = facet->used; | |
9dfb1f78 EJ |
5113 | stats.tcp_flags = facet->tcp_flags; |
5114 | ||
5115 | if (may_learn || stats.n_packets || facet->used > facet->prev_used) { | |
5116 | struct ofproto_dpif *ofproto = | |
5117 | ofproto_dpif_cast(facet->rule->up.ofproto); | |
5118 | ||
5119 | struct ofport_dpif *in_port; | |
5120 | struct xlate_in xin; | |
abe529af | 5121 | |
9d24de3b JP |
5122 | facet->prev_packet_count = facet->packet_count; |
5123 | facet->prev_byte_count = facet->byte_count; | |
5124 | facet->prev_used = facet->used; | |
abe529af | 5125 | |
9dfb1f78 EJ |
5126 | in_port = get_ofp_port(ofproto, facet->flow.in_port); |
5127 | if (in_port && in_port->tnl_port) { | |
5128 | netdev_vport_inc_rx(in_port->up.netdev, &stats); | |
5129 | } | |
9d24de3b | 5130 | |
9dfb1f78 EJ |
5131 | rule_credit_stats(facet->rule, &stats); |
5132 | netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, | |
5133 | facet->used); | |
5134 | netflow_flow_update_flags(&facet->nf_flow, facet->tcp_flags); | |
5135 | update_mirror_stats(ofproto, facet->xout.mirrors, stats.n_packets, | |
bbafd73b | 5136 | stats.n_bytes); |
9dfb1f78 EJ |
5137 | |
5138 | xlate_in_init(&xin, ofproto, &facet->flow, &facet->initial_vals, | |
5139 | facet->rule, stats.tcp_flags, NULL); | |
5140 | xin.resubmit_stats = &stats; | |
5141 | xin.may_learn = may_learn; | |
5142 | xlate_actions_for_side_effects(&xin); | |
abe529af BP |
5143 | } |
5144 | } | |
5145 | ||
8844e035 | 5146 | static void |
4464589e | 5147 | push_all_stats__(bool run_fast) |
8844e035 EJ |
5148 | { |
5149 | static long long int rl = LLONG_MIN; | |
5150 | struct ofproto_dpif *ofproto; | |
5151 | ||
5152 | if (time_msec() < rl) { | |
5153 | return; | |
5154 | } | |
5155 | ||
5156 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
5157 | struct facet *facet; | |
5158 | ||
5159 | HMAP_FOR_EACH (facet, hmap_node, &ofproto->facets) { | |
9dfb1f78 | 5160 | facet_push_stats(facet, false); |
4464589e EJ |
5161 | if (run_fast) { |
5162 | run_fast_rl(); | |
5163 | } | |
8844e035 EJ |
5164 | } |
5165 | } | |
5166 | ||
5167 | rl = time_msec() + 100; | |
5168 | } | |
5169 | ||
4464589e EJ |
5170 | static void |
5171 | push_all_stats(void) | |
5172 | { | |
5173 | push_all_stats__(true); | |
5174 | } | |
5175 | ||
abe529af | 5176 | static void |
112bc5f4 | 5177 | rule_credit_stats(struct rule_dpif *rule, const struct dpif_flow_stats *stats) |
abe529af | 5178 | { |
112bc5f4 BP |
5179 | rule->packet_count += stats->n_packets; |
5180 | rule->byte_count += stats->n_bytes; | |
5181 | ofproto_rule_update_used(&rule->up, stats->used); | |
abe529af | 5182 | } |
abe529af | 5183 | \f |
b0f7b9b5 BP |
5184 | /* Subfacets. */ |
5185 | ||
5186 | static struct subfacet * | |
acf60855 | 5187 | subfacet_find(struct ofproto_dpif *ofproto, |
9566abf9 | 5188 | const struct nlattr *key, size_t key_len, uint32_t key_hash) |
b0f7b9b5 BP |
5189 | { |
5190 | struct subfacet *subfacet; | |
5191 | ||
5192 | HMAP_FOR_EACH_WITH_HASH (subfacet, hmap_node, key_hash, | |
5193 | &ofproto->subfacets) { | |
9566abf9 EJ |
5194 | if (subfacet->key_len == key_len |
5195 | && !memcmp(key, subfacet->key, key_len)) { | |
b0f7b9b5 BP |
5196 | return subfacet; |
5197 | } | |
5198 | } | |
5199 | ||
5200 | return NULL; | |
5201 | } | |
5202 | ||
5203 | /* Searches 'facet' (within 'ofproto') for a subfacet with the specified | |
a088a1ff JP |
5204 | * 'key_fitness', 'key', and 'key_len' members in 'miss'. Returns the |
5205 | * existing subfacet if there is one, otherwise creates and returns a | |
4dff9097 | 5206 | * new subfacet. */ |
b0f7b9b5 | 5207 | static struct subfacet * |
a088a1ff JP |
5208 | subfacet_create(struct facet *facet, struct flow_miss *miss, |
5209 | long long int now) | |
b0f7b9b5 | 5210 | { |
15baa734 | 5211 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
a088a1ff JP |
5212 | enum odp_key_fitness key_fitness = miss->key_fitness; |
5213 | const struct nlattr *key = miss->key; | |
5214 | size_t key_len = miss->key_len; | |
5215 | uint32_t key_hash; | |
b0f7b9b5 BP |
5216 | struct subfacet *subfacet; |
5217 | ||
a088a1ff JP |
5218 | key_hash = odp_flow_key_hash(key, key_len); |
5219 | ||
3b145dd7 BP |
5220 | if (list_is_empty(&facet->subfacets)) { |
5221 | subfacet = &facet->one_subfacet; | |
5222 | } else { | |
9566abf9 | 5223 | subfacet = subfacet_find(ofproto, key, key_len, key_hash); |
3b145dd7 BP |
5224 | if (subfacet) { |
5225 | if (subfacet->facet == facet) { | |
5226 | return subfacet; | |
5227 | } | |
5228 | ||
5229 | /* This shouldn't happen. */ | |
5230 | VLOG_ERR_RL(&rl, "subfacet with wrong facet"); | |
5231 | subfacet_destroy(subfacet); | |
b0f7b9b5 BP |
5232 | } |
5233 | ||
3b145dd7 | 5234 | subfacet = xmalloc(sizeof *subfacet); |
b0f7b9b5 BP |
5235 | } |
5236 | ||
b0f7b9b5 BP |
5237 | hmap_insert(&ofproto->subfacets, &subfacet->hmap_node, key_hash); |
5238 | list_push_back(&facet->subfacets, &subfacet->list_node); | |
5239 | subfacet->facet = facet; | |
b0f7b9b5 | 5240 | subfacet->key_fitness = key_fitness; |
9566abf9 EJ |
5241 | subfacet->key = xmemdup(key, key_len); |
5242 | subfacet->key_len = key_len; | |
459b16a1 | 5243 | subfacet->used = now; |
655ab909 | 5244 | subfacet->created = now; |
26cd7e34 BP |
5245 | subfacet->dp_packet_count = 0; |
5246 | subfacet->dp_byte_count = 0; | |
6a7e895f | 5247 | subfacet->path = SF_NOT_INSTALLED; |
b0f7b9b5 | 5248 | |
655ab909 | 5249 | ofproto->subfacet_add_count++; |
b0f7b9b5 BP |
5250 | return subfacet; |
5251 | } | |
5252 | ||
b0f7b9b5 BP |
5253 | /* Uninstalls 'subfacet' from the datapath, if it is installed, removes it from |
5254 | * its facet within 'ofproto', and frees it. */ | |
5255 | static void | |
15baa734 | 5256 | subfacet_destroy__(struct subfacet *subfacet) |
b0f7b9b5 | 5257 | { |
15baa734 BP |
5258 | struct facet *facet = subfacet->facet; |
5259 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
5260 | ||
655ab909 AZ |
5261 | /* Update ofproto stats before uninstall the subfacet. */ |
5262 | ofproto->subfacet_del_count++; | |
5263 | ofproto->total_subfacet_life_span += (time_msec() - subfacet->created); | |
5264 | ||
15baa734 | 5265 | subfacet_uninstall(subfacet); |
b0f7b9b5 BP |
5266 | hmap_remove(&ofproto->subfacets, &subfacet->hmap_node); |
5267 | list_remove(&subfacet->list_node); | |
5268 | free(subfacet->key); | |
26cd7e34 BP |
5269 | if (subfacet != &facet->one_subfacet) { |
5270 | free(subfacet); | |
5271 | } | |
b0f7b9b5 BP |
5272 | } |
5273 | ||
5274 | /* Destroys 'subfacet', as with subfacet_destroy__(), and then if this was the | |
5275 | * last remaining subfacet in its facet destroys the facet too. */ | |
5276 | static void | |
15baa734 | 5277 | subfacet_destroy(struct subfacet *subfacet) |
b0f7b9b5 BP |
5278 | { |
5279 | struct facet *facet = subfacet->facet; | |
5280 | ||
551a2f6c BP |
5281 | if (list_is_singleton(&facet->subfacets)) { |
5282 | /* facet_remove() needs at least one subfacet (it will remove it). */ | |
15baa734 | 5283 | facet_remove(facet); |
551a2f6c | 5284 | } else { |
15baa734 | 5285 | subfacet_destroy__(subfacet); |
b0f7b9b5 BP |
5286 | } |
5287 | } | |
5288 | ||
1d85f9e5 JP |
5289 | static void |
5290 | subfacet_destroy_batch(struct ofproto_dpif *ofproto, | |
5291 | struct subfacet **subfacets, int n) | |
5292 | { | |
1d85f9e5 JP |
5293 | struct dpif_op ops[SUBFACET_DESTROY_MAX_BATCH]; |
5294 | struct dpif_op *opsp[SUBFACET_DESTROY_MAX_BATCH]; | |
1d85f9e5 JP |
5295 | struct dpif_flow_stats stats[SUBFACET_DESTROY_MAX_BATCH]; |
5296 | int i; | |
5297 | ||
5298 | for (i = 0; i < n; i++) { | |
5299 | ops[i].type = DPIF_OP_FLOW_DEL; | |
9566abf9 EJ |
5300 | ops[i].u.flow_del.key = subfacets[i]->key; |
5301 | ops[i].u.flow_del.key_len = subfacets[i]->key_len; | |
1d85f9e5 JP |
5302 | ops[i].u.flow_del.stats = &stats[i]; |
5303 | opsp[i] = &ops[i]; | |
5304 | } | |
5305 | ||
acf60855 | 5306 | dpif_operate(ofproto->backer->dpif, opsp, n); |
1d85f9e5 JP |
5307 | for (i = 0; i < n; i++) { |
5308 | subfacet_reset_dp_stats(subfacets[i], &stats[i]); | |
5309 | subfacets[i]->path = SF_NOT_INSTALLED; | |
5310 | subfacet_destroy(subfacets[i]); | |
8fa4d1d0 | 5311 | run_fast_rl(); |
1d85f9e5 JP |
5312 | } |
5313 | } | |
5314 | ||
b0f7b9b5 BP |
5315 | /* Updates 'subfacet''s datapath flow, setting its actions to 'actions_len' |
5316 | * bytes of actions in 'actions'. If 'stats' is non-null, statistics counters | |
5317 | * in the datapath will be zeroed and 'stats' will be updated with traffic new | |
5318 | * since 'subfacet' was last updated. | |
5319 | * | |
5320 | * Returns 0 if successful, otherwise a positive errno value. */ | |
5321 | static int | |
4dff9097 EJ |
5322 | subfacet_install(struct subfacet *subfacet, const struct ofpbuf *odp_actions, |
5323 | struct dpif_flow_stats *stats) | |
b0f7b9b5 | 5324 | { |
15baa734 BP |
5325 | struct facet *facet = subfacet->facet; |
5326 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
bbafd73b | 5327 | enum subfacet_path path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH; |
4dff9097 EJ |
5328 | const struct nlattr *actions = odp_actions->data; |
5329 | size_t actions_len = odp_actions->size; | |
5330 | ||
6a7e895f | 5331 | uint64_t slow_path_stub[128 / 8]; |
b0f7b9b5 | 5332 | enum dpif_flow_put_flags flags; |
b0f7b9b5 BP |
5333 | int ret; |
5334 | ||
5335 | flags = DPIF_FP_CREATE | DPIF_FP_MODIFY; | |
5336 | if (stats) { | |
5337 | flags |= DPIF_FP_ZERO_STATS; | |
5338 | } | |
5339 | ||
6a7e895f | 5340 | if (path == SF_SLOW_PATH) { |
bbafd73b | 5341 | compose_slow_path(ofproto, &facet->flow, facet->xout.slow, |
6a7e895f BP |
5342 | slow_path_stub, sizeof slow_path_stub, |
5343 | &actions, &actions_len); | |
5344 | } | |
5345 | ||
9566abf9 EJ |
5346 | ret = dpif_flow_put(ofproto->backer->dpif, flags, subfacet->key, |
5347 | subfacet->key_len, actions, actions_len, stats); | |
b0f7b9b5 BP |
5348 | |
5349 | if (stats) { | |
5350 | subfacet_reset_dp_stats(subfacet, stats); | |
5351 | } | |
5352 | ||
6a7e895f BP |
5353 | if (!ret) { |
5354 | subfacet->path = path; | |
5355 | } | |
b0f7b9b5 BP |
5356 | return ret; |
5357 | } | |
5358 | ||
5359 | /* If 'subfacet' is installed in the datapath, uninstalls it. */ | |
5360 | static void | |
15baa734 | 5361 | subfacet_uninstall(struct subfacet *subfacet) |
b0f7b9b5 | 5362 | { |
6a7e895f | 5363 | if (subfacet->path != SF_NOT_INSTALLED) { |
15baa734 BP |
5364 | struct rule_dpif *rule = subfacet->facet->rule; |
5365 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
b0f7b9b5 | 5366 | struct dpif_flow_stats stats; |
b0f7b9b5 BP |
5367 | int error; |
5368 | ||
9566abf9 EJ |
5369 | error = dpif_flow_del(ofproto->backer->dpif, subfacet->key, |
5370 | subfacet->key_len, &stats); | |
b0f7b9b5 BP |
5371 | subfacet_reset_dp_stats(subfacet, &stats); |
5372 | if (!error) { | |
15baa734 | 5373 | subfacet_update_stats(subfacet, &stats); |
b0f7b9b5 | 5374 | } |
6a7e895f | 5375 | subfacet->path = SF_NOT_INSTALLED; |
b0f7b9b5 | 5376 | } else { |
cb22974d BP |
5377 | ovs_assert(subfacet->dp_packet_count == 0); |
5378 | ovs_assert(subfacet->dp_byte_count == 0); | |
b0f7b9b5 BP |
5379 | } |
5380 | } | |
5381 | ||
5382 | /* Resets 'subfacet''s datapath statistics counters. This should be called | |
5383 | * when 'subfacet''s statistics are cleared in the datapath. If 'stats' is | |
5384 | * non-null, it should contain the statistics returned by dpif when 'subfacet' | |
5385 | * was reset in the datapath. 'stats' will be modified to include only | |
5386 | * statistics new since 'subfacet' was last updated. */ | |
5387 | static void | |
5388 | subfacet_reset_dp_stats(struct subfacet *subfacet, | |
5389 | struct dpif_flow_stats *stats) | |
5390 | { | |
5391 | if (stats | |
5392 | && subfacet->dp_packet_count <= stats->n_packets | |
5393 | && subfacet->dp_byte_count <= stats->n_bytes) { | |
5394 | stats->n_packets -= subfacet->dp_packet_count; | |
5395 | stats->n_bytes -= subfacet->dp_byte_count; | |
5396 | } | |
5397 | ||
5398 | subfacet->dp_packet_count = 0; | |
5399 | subfacet->dp_byte_count = 0; | |
5400 | } | |
5401 | ||
b0f7b9b5 BP |
5402 | /* Folds the statistics from 'stats' into the counters in 'subfacet'. |
5403 | * | |
5404 | * Because of the meaning of a subfacet's counters, it only makes sense to do | |
5405 | * this if 'stats' are not tracked in the datapath, that is, if 'stats' | |
5406 | * represents a packet that was sent by hand or if it represents statistics | |
5407 | * that have been cleared out of the datapath. */ | |
5408 | static void | |
15baa734 | 5409 | subfacet_update_stats(struct subfacet *subfacet, |
b0f7b9b5 BP |
5410 | const struct dpif_flow_stats *stats) |
5411 | { | |
5412 | if (stats->n_packets || stats->used > subfacet->used) { | |
5413 | struct facet *facet = subfacet->facet; | |
5414 | ||
9dfb1f78 EJ |
5415 | subfacet->used = MAX(subfacet->used, stats->used); |
5416 | facet->used = MAX(facet->used, stats->used); | |
b0f7b9b5 BP |
5417 | facet->packet_count += stats->n_packets; |
5418 | facet->byte_count += stats->n_bytes; | |
0e553d9c | 5419 | facet->tcp_flags |= stats->tcp_flags; |
b0f7b9b5 BP |
5420 | } |
5421 | } | |
5422 | \f | |
abe529af BP |
5423 | /* Rules. */ |
5424 | ||
5425 | static struct rule_dpif * | |
c57b2226 BP |
5426 | rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow) |
5427 | { | |
c57b2226 BP |
5428 | struct rule_dpif *rule; |
5429 | ||
5430 | rule = rule_dpif_lookup__(ofproto, flow, 0); | |
5431 | if (rule) { | |
5432 | return rule; | |
5433 | } | |
5434 | ||
c376f9a3 | 5435 | return rule_dpif_miss_rule(ofproto, flow); |
c57b2226 BP |
5436 | } |
5437 | ||
5438 | static struct rule_dpif * | |
5439 | rule_dpif_lookup__(struct ofproto_dpif *ofproto, const struct flow *flow, | |
5440 | uint8_t table_id) | |
abe529af | 5441 | { |
7257b535 BP |
5442 | struct cls_rule *cls_rule; |
5443 | struct classifier *cls; | |
7fd51d39 | 5444 | bool frag; |
7257b535 | 5445 | |
9cdaaebe BP |
5446 | if (table_id >= N_TABLES) { |
5447 | return NULL; | |
5448 | } | |
5449 | ||
d0918789 | 5450 | cls = &ofproto->up.tables[table_id].cls; |
7fd51d39 BP |
5451 | frag = (flow->nw_frag & FLOW_NW_FRAG_ANY) != 0; |
5452 | if (frag && ofproto->up.frag_handling == OFPC_FRAG_NORMAL) { | |
5453 | /* We must pretend that transport ports are unavailable. */ | |
7257b535 BP |
5454 | struct flow ofpc_normal_flow = *flow; |
5455 | ofpc_normal_flow.tp_src = htons(0); | |
5456 | ofpc_normal_flow.tp_dst = htons(0); | |
5457 | cls_rule = classifier_lookup(cls, &ofpc_normal_flow); | |
7fd51d39 BP |
5458 | } else if (frag && ofproto->up.frag_handling == OFPC_FRAG_DROP) { |
5459 | cls_rule = &ofproto->drop_frags_rule->up.cr; | |
7257b535 BP |
5460 | } else { |
5461 | cls_rule = classifier_lookup(cls, flow); | |
5462 | } | |
5463 | return rule_dpif_cast(rule_from_cls_rule(cls_rule)); | |
abe529af BP |
5464 | } |
5465 | ||
c376f9a3 IY |
5466 | static struct rule_dpif * |
5467 | rule_dpif_miss_rule(struct ofproto_dpif *ofproto, const struct flow *flow) | |
5468 | { | |
5469 | struct ofport_dpif *port; | |
5470 | ||
5471 | port = get_ofp_port(ofproto, flow->in_port); | |
5472 | if (!port) { | |
5473 | VLOG_WARN_RL(&rl, "packet-in on unknown port %"PRIu16, flow->in_port); | |
5474 | return ofproto->miss_rule; | |
5475 | } | |
5476 | ||
5477 | if (port->up.pp.config & OFPUTIL_PC_NO_PACKET_IN) { | |
5478 | return ofproto->no_packet_in_rule; | |
5479 | } | |
5480 | return ofproto->miss_rule; | |
5481 | } | |
5482 | ||
7ee20df1 BP |
5483 | static void |
5484 | complete_operation(struct rule_dpif *rule) | |
5485 | { | |
5486 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
5487 | ||
54a9cbc9 | 5488 | rule_invalidate(rule); |
7ee20df1 BP |
5489 | if (clogged) { |
5490 | struct dpif_completion *c = xmalloc(sizeof *c); | |
5491 | c->op = rule->up.pending; | |
5492 | list_push_back(&ofproto->completions, &c->list_node); | |
5493 | } else { | |
5494 | ofoperation_complete(rule->up.pending, 0); | |
5495 | } | |
5496 | } | |
5497 | ||
abe529af BP |
5498 | static struct rule * |
5499 | rule_alloc(void) | |
5500 | { | |
5501 | struct rule_dpif *rule = xmalloc(sizeof *rule); | |
5502 | return &rule->up; | |
5503 | } | |
5504 | ||
5505 | static void | |
5506 | rule_dealloc(struct rule *rule_) | |
5507 | { | |
5508 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
5509 | free(rule); | |
5510 | } | |
5511 | ||
90bf1e07 | 5512 | static enum ofperr |
abe529af BP |
5513 | rule_construct(struct rule *rule_) |
5514 | { | |
5515 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
5516 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
7ee20df1 | 5517 | struct rule_dpif *victim; |
54a9cbc9 | 5518 | uint8_t table_id; |
abe529af | 5519 | |
abe529af BP |
5520 | rule->packet_count = 0; |
5521 | rule->byte_count = 0; | |
abe529af | 5522 | |
7ee20df1 BP |
5523 | victim = rule_dpif_cast(ofoperation_get_victim(rule->up.pending)); |
5524 | if (victim && !list_is_empty(&victim->facets)) { | |
5525 | struct facet *facet; | |
5526 | ||
5527 | rule->facets = victim->facets; | |
5528 | list_moved(&rule->facets); | |
5529 | LIST_FOR_EACH (facet, list_node, &rule->facets) { | |
bbb5d219 EJ |
5530 | /* XXX: We're only clearing our local counters here. It's possible |
5531 | * that quite a few packets are unaccounted for in the datapath | |
5532 | * statistics. These will be accounted to the new rule instead of | |
5533 | * cleared as required. This could be fixed by clearing out the | |
5534 | * datapath statistics for this facet, but currently it doesn't | |
5535 | * seem worth it. */ | |
5536 | facet_reset_counters(facet); | |
7ee20df1 BP |
5537 | facet->rule = rule; |
5538 | } | |
5539 | } else { | |
5540 | /* Must avoid list_moved() in this case. */ | |
5541 | list_init(&rule->facets); | |
5542 | } | |
abe529af | 5543 | |
54a9cbc9 | 5544 | table_id = rule->up.table_id; |
5cb7a798 BP |
5545 | if (victim) { |
5546 | rule->tag = victim->tag; | |
5547 | } else if (table_id == 0) { | |
5548 | rule->tag = 0; | |
5549 | } else { | |
5550 | struct flow flow; | |
5551 | ||
5552 | miniflow_expand(&rule->up.cr.match.flow, &flow); | |
5553 | rule->tag = rule_calculate_tag(&flow, &rule->up.cr.match.mask, | |
5554 | ofproto->tables[table_id].basis); | |
5555 | } | |
54a9cbc9 | 5556 | |
7ee20df1 | 5557 | complete_operation(rule); |
abe529af BP |
5558 | return 0; |
5559 | } | |
5560 | ||
5561 | static void | |
5562 | rule_destruct(struct rule *rule_) | |
5563 | { | |
5564 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
abe529af BP |
5565 | struct facet *facet, *next_facet; |
5566 | ||
abe529af | 5567 | LIST_FOR_EACH_SAFE (facet, next_facet, list_node, &rule->facets) { |
15baa734 | 5568 | facet_revalidate(facet); |
abe529af | 5569 | } |
7ee20df1 BP |
5570 | |
5571 | complete_operation(rule); | |
abe529af BP |
5572 | } |
5573 | ||
5574 | static void | |
5575 | rule_get_stats(struct rule *rule_, uint64_t *packets, uint64_t *bytes) | |
5576 | { | |
5577 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
abe529af | 5578 | |
4464589e EJ |
5579 | /* push_all_stats() can handle flow misses which, when using the learn |
5580 | * action, can cause rules to be added and deleted. This can corrupt our | |
5581 | * caller's datastructures which assume that rule_get_stats() doesn't have | |
5582 | * an impact on the flow table. To be safe, we disable miss handling. */ | |
5583 | push_all_stats__(false); | |
bf1e8ff9 | 5584 | |
abe529af BP |
5585 | /* Start from historical data for 'rule' itself that are no longer tracked |
5586 | * in facets. This counts, for example, facets that have expired. */ | |
5587 | *packets = rule->packet_count; | |
5588 | *bytes = rule->byte_count; | |
abe529af BP |
5589 | } |
5590 | ||
0a740f48 EJ |
5591 | static void |
5592 | rule_dpif_execute(struct rule_dpif *rule, const struct flow *flow, | |
5593 | struct ofpbuf *packet) | |
abe529af | 5594 | { |
abe529af | 5595 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); |
14f94f9a | 5596 | struct initial_vals initial_vals; |
112bc5f4 | 5597 | struct dpif_flow_stats stats; |
bbafd73b EJ |
5598 | struct xlate_out xout; |
5599 | struct xlate_in xin; | |
abe529af | 5600 | |
a7752d4a | 5601 | dpif_flow_stats_extract(flow, packet, time_msec(), &stats); |
112bc5f4 BP |
5602 | rule_credit_stats(rule, &stats); |
5603 | ||
14f94f9a | 5604 | initial_vals.vlan_tci = flow->vlan_tci; |
bbafd73b EJ |
5605 | xlate_in_init(&xin, ofproto, flow, &initial_vals, rule, stats.tcp_flags, |
5606 | packet); | |
5607 | xin.resubmit_stats = &stats; | |
5608 | xlate_actions(&xin, &xout); | |
112bc5f4 | 5609 | |
bbafd73b EJ |
5610 | execute_odp_actions(ofproto, flow, xout.odp_actions.data, |
5611 | xout.odp_actions.size, packet); | |
112bc5f4 | 5612 | |
bbafd73b | 5613 | xlate_out_uninit(&xout); |
0a740f48 | 5614 | } |
5bf0e941 | 5615 | |
0a740f48 EJ |
5616 | static enum ofperr |
5617 | rule_execute(struct rule *rule, const struct flow *flow, | |
5618 | struct ofpbuf *packet) | |
5619 | { | |
5620 | rule_dpif_execute(rule_dpif_cast(rule), flow, packet); | |
5621 | ofpbuf_delete(packet); | |
5bf0e941 | 5622 | return 0; |
abe529af BP |
5623 | } |
5624 | ||
7ee20df1 BP |
5625 | static void |
5626 | rule_modify_actions(struct rule *rule_) | |
abe529af BP |
5627 | { |
5628 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
7ee20df1 BP |
5629 | |
5630 | complete_operation(rule); | |
abe529af BP |
5631 | } |
5632 | \f | |
97d6520b | 5633 | /* Sends 'packet' out 'ofport'. |
52a90c29 | 5634 | * May modify 'packet'. |
abe529af BP |
5635 | * Returns 0 if successful, otherwise a positive errno value. */ |
5636 | static int | |
52a90c29 | 5637 | send_packet(const struct ofport_dpif *ofport, struct ofpbuf *packet) |
abe529af | 5638 | { |
79e15b78 | 5639 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); |
b9ad7294 | 5640 | uint64_t odp_actions_stub[1024 / 8]; |
80e5eed9 | 5641 | struct ofpbuf key, odp_actions; |
0f49659a | 5642 | struct dpif_flow_stats stats; |
80e5eed9 | 5643 | struct odputil_keybuf keybuf; |
0f49659a | 5644 | struct ofpact_output output; |
bbafd73b EJ |
5645 | struct xlate_out xout; |
5646 | struct xlate_in xin; | |
80e5eed9 | 5647 | struct flow flow; |
abe529af BP |
5648 | int error; |
5649 | ||
b9ad7294 | 5650 | ofpbuf_use_stub(&odp_actions, odp_actions_stub, sizeof odp_actions_stub); |
0f49659a | 5651 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); |
b9ad7294 | 5652 | |
0f49659a EJ |
5653 | /* Use OFPP_NONE as the in_port to avoid special packet processing. */ |
5654 | flow_extract(packet, 0, 0, NULL, OFPP_NONE, &flow); | |
5655 | odp_flow_key_from_flow(&key, &flow, ofp_port_to_odp_port(ofproto, | |
5656 | OFPP_LOCAL)); | |
5657 | dpif_flow_stats_extract(&flow, packet, time_msec(), &stats); | |
b9ad7294 | 5658 | |
0f49659a EJ |
5659 | ofpact_init(&output.ofpact, OFPACT_OUTPUT, sizeof output); |
5660 | output.port = ofport->up.ofp_port; | |
5661 | output.max_len = 0; | |
b9ad7294 | 5662 | |
bbafd73b EJ |
5663 | xlate_in_init(&xin, ofproto, &flow, NULL, NULL, 0, packet); |
5664 | xin.ofpacts_len = sizeof output; | |
5665 | xin.ofpacts = &output.ofpact; | |
5666 | xin.resubmit_stats = &stats; | |
5667 | xlate_actions(&xin, &xout); | |
6ff686f2 | 5668 | |
acf60855 | 5669 | error = dpif_execute(ofproto->backer->dpif, |
80e5eed9 | 5670 | key.data, key.size, |
bbafd73b | 5671 | xout.odp_actions.data, xout.odp_actions.size, |
abe529af | 5672 | packet); |
bbafd73b | 5673 | xlate_out_uninit(&xout); |
abe529af BP |
5674 | |
5675 | if (error) { | |
0f49659a EJ |
5676 | VLOG_WARN_RL(&rl, "%s: failed to send packet on port %s (%s)", |
5677 | ofproto->up.name, netdev_get_name(ofport->up.netdev), | |
5678 | strerror(error)); | |
abe529af | 5679 | } |
79e15b78 EJ |
5680 | |
5681 | ofproto->stats.tx_packets++; | |
5682 | ofproto->stats.tx_bytes += packet->size; | |
abe529af BP |
5683 | return error; |
5684 | } | |
5685 | \f | |
df2c07f4 | 5686 | /* OpenFlow to datapath action translation. */ |
abe529af | 5687 | |
f03a84b9 | 5688 | static bool may_receive(const struct ofport_dpif *, struct xlate_ctx *); |
f25d0cf3 | 5689 | static void do_xlate_actions(const struct ofpact *, size_t ofpacts_len, |
f03a84b9 EJ |
5690 | struct xlate_ctx *); |
5691 | static void xlate_normal(struct xlate_ctx *); | |
abe529af | 5692 | |
6a7e895f BP |
5693 | /* Composes an ODP action for a "slow path" action for 'flow' within 'ofproto'. |
5694 | * The action will state 'slow' as the reason that the action is in the slow | |
5695 | * path. (This is purely informational: it allows a human viewing "ovs-dpctl | |
5696 | * dump-flows" output to see why a flow is in the slow path.) | |
5697 | * | |
5698 | * The 'stub_size' bytes in 'stub' will be used to store the action. | |
5699 | * 'stub_size' must be large enough for the action. | |
5700 | * | |
5701 | * The action and its size will be stored in '*actionsp' and '*actions_lenp', | |
5702 | * respectively. */ | |
5703 | static void | |
5704 | compose_slow_path(const struct ofproto_dpif *ofproto, const struct flow *flow, | |
5705 | enum slow_path_reason slow, | |
5706 | uint64_t *stub, size_t stub_size, | |
5707 | const struct nlattr **actionsp, size_t *actions_lenp) | |
5708 | { | |
5709 | union user_action_cookie cookie; | |
5710 | struct ofpbuf buf; | |
5711 | ||
5712 | cookie.type = USER_ACTION_COOKIE_SLOW_PATH; | |
5713 | cookie.slow_path.unused = 0; | |
5714 | cookie.slow_path.reason = slow; | |
5715 | ||
5716 | ofpbuf_use_stack(&buf, stub, stub_size); | |
ccc09689 | 5717 | if (slow & (SLOW_CFM | SLOW_BFD | SLOW_LACP | SLOW_STP)) { |
9032f11e | 5718 | uint32_t pid = dpif_port_get_pid(ofproto->backer->dpif, UINT32_MAX); |
29089a54 | 5719 | odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, &buf); |
625b0720 | 5720 | } else { |
29089a54 RL |
5721 | put_userspace_action(ofproto, &buf, flow, &cookie, |
5722 | sizeof cookie.slow_path); | |
625b0720 | 5723 | } |
6a7e895f BP |
5724 | *actionsp = buf.data; |
5725 | *actions_lenp = buf.size; | |
5726 | } | |
5727 | ||
98403001 BP |
5728 | static size_t |
5729 | put_userspace_action(const struct ofproto_dpif *ofproto, | |
5730 | struct ofpbuf *odp_actions, | |
5731 | const struct flow *flow, | |
29089a54 RL |
5732 | const union user_action_cookie *cookie, |
5733 | const size_t cookie_size) | |
98403001 | 5734 | { |
98403001 BP |
5735 | uint32_t pid; |
5736 | ||
acf60855 | 5737 | pid = dpif_port_get_pid(ofproto->backer->dpif, |
e1b1d06a | 5738 | ofp_port_to_odp_port(ofproto, flow->in_port)); |
98403001 | 5739 | |
29089a54 RL |
5740 | return odp_put_userspace_action(pid, cookie, cookie_size, odp_actions); |
5741 | } | |
5742 | ||
5743 | /* Compose SAMPLE action for sFlow or IPFIX. The given probability is | |
5744 | * the number of packets out of UINT32_MAX to sample. The given | |
5745 | * cookie is passed back in the callback for each sampled packet. | |
5746 | */ | |
5747 | static size_t | |
5748 | compose_sample_action(const struct ofproto_dpif *ofproto, | |
5749 | struct ofpbuf *odp_actions, | |
5750 | const struct flow *flow, | |
5751 | const uint32_t probability, | |
5752 | const union user_action_cookie *cookie, | |
5753 | const size_t cookie_size) | |
5754 | { | |
5755 | size_t sample_offset, actions_offset; | |
5756 | int cookie_offset; | |
5757 | ||
5758 | sample_offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SAMPLE); | |
5759 | ||
5760 | nl_msg_put_u32(odp_actions, OVS_SAMPLE_ATTR_PROBABILITY, probability); | |
5761 | ||
5762 | actions_offset = nl_msg_start_nested(odp_actions, OVS_SAMPLE_ATTR_ACTIONS); | |
5763 | cookie_offset = put_userspace_action(ofproto, odp_actions, flow, cookie, | |
5764 | cookie_size); | |
5765 | ||
5766 | nl_msg_end_nested(odp_actions, actions_offset); | |
5767 | nl_msg_end_nested(odp_actions, sample_offset); | |
5768 | return cookie_offset; | |
98403001 BP |
5769 | } |
5770 | ||
36fc5f18 BP |
5771 | static void |
5772 | compose_sflow_cookie(const struct ofproto_dpif *ofproto, | |
5773 | ovs_be16 vlan_tci, uint32_t odp_port, | |
1673e0e4 | 5774 | unsigned int n_outputs, union user_action_cookie *cookie) |
36fc5f18 BP |
5775 | { |
5776 | int ifindex; | |
5777 | ||
5778 | cookie->type = USER_ACTION_COOKIE_SFLOW; | |
1673e0e4 | 5779 | cookie->sflow.vlan_tci = vlan_tci; |
36fc5f18 BP |
5780 | |
5781 | /* See http://www.sflow.org/sflow_version_5.txt (search for "Input/output | |
5782 | * port information") for the interpretation of cookie->output. */ | |
5783 | switch (n_outputs) { | |
5784 | case 0: | |
5785 | /* 0x40000000 | 256 means "packet dropped for unknown reason". */ | |
1673e0e4 | 5786 | cookie->sflow.output = 0x40000000 | 256; |
36fc5f18 BP |
5787 | break; |
5788 | ||
5789 | case 1: | |
5790 | ifindex = dpif_sflow_odp_port_to_ifindex(ofproto->sflow, odp_port); | |
5791 | if (ifindex) { | |
1673e0e4 | 5792 | cookie->sflow.output = ifindex; |
36fc5f18 BP |
5793 | break; |
5794 | } | |
5795 | /* Fall through. */ | |
5796 | default: | |
5797 | /* 0x80000000 means "multiple output ports. */ | |
1673e0e4 | 5798 | cookie->sflow.output = 0x80000000 | n_outputs; |
36fc5f18 BP |
5799 | break; |
5800 | } | |
5801 | } | |
5802 | ||
29089a54 | 5803 | /* Compose SAMPLE action for sFlow bridge sampling. */ |
6ff686f2 PS |
5804 | static size_t |
5805 | compose_sflow_action(const struct ofproto_dpif *ofproto, | |
5806 | struct ofpbuf *odp_actions, | |
5807 | const struct flow *flow, | |
5808 | uint32_t odp_port) | |
5809 | { | |
6ff686f2 | 5810 | uint32_t probability; |
1673e0e4 | 5811 | union user_action_cookie cookie; |
6ff686f2 PS |
5812 | |
5813 | if (!ofproto->sflow || flow->in_port == OFPP_NONE) { | |
5814 | return 0; | |
5815 | } | |
5816 | ||
6ff686f2 | 5817 | probability = dpif_sflow_get_probability(ofproto->sflow); |
36fc5f18 BP |
5818 | compose_sflow_cookie(ofproto, htons(0), odp_port, |
5819 | odp_port == OVSP_NONE ? 0 : 1, &cookie); | |
6ff686f2 | 5820 | |
29089a54 RL |
5821 | return compose_sample_action(ofproto, odp_actions, flow, probability, |
5822 | &cookie, sizeof cookie.sflow); | |
5823 | } | |
5824 | ||
5825 | static void | |
5826 | compose_flow_sample_cookie(uint16_t probability, uint32_t collector_set_id, | |
5827 | uint32_t obs_domain_id, uint32_t obs_point_id, | |
5828 | union user_action_cookie *cookie) | |
5829 | { | |
5830 | cookie->type = USER_ACTION_COOKIE_FLOW_SAMPLE; | |
5831 | cookie->flow_sample.probability = probability; | |
5832 | cookie->flow_sample.collector_set_id = collector_set_id; | |
5833 | cookie->flow_sample.obs_domain_id = obs_domain_id; | |
5834 | cookie->flow_sample.obs_point_id = obs_point_id; | |
5835 | } | |
5836 | ||
5837 | static void | |
5838 | compose_ipfix_cookie(union user_action_cookie *cookie) | |
5839 | { | |
5840 | cookie->type = USER_ACTION_COOKIE_IPFIX; | |
5841 | } | |
5842 | ||
5843 | /* Compose SAMPLE action for IPFIX bridge sampling. */ | |
5844 | static void | |
5845 | compose_ipfix_action(const struct ofproto_dpif *ofproto, | |
5846 | struct ofpbuf *odp_actions, | |
5847 | const struct flow *flow) | |
5848 | { | |
5849 | uint32_t probability; | |
5850 | union user_action_cookie cookie; | |
5851 | ||
5852 | if (!ofproto->ipfix || flow->in_port == OFPP_NONE) { | |
5853 | return; | |
5854 | } | |
5855 | ||
5856 | probability = dpif_ipfix_get_bridge_exporter_probability(ofproto->ipfix); | |
5857 | compose_ipfix_cookie(&cookie); | |
5858 | ||
5859 | compose_sample_action(ofproto, odp_actions, flow, probability, | |
5860 | &cookie, sizeof cookie.ipfix); | |
6ff686f2 PS |
5861 | } |
5862 | ||
29089a54 RL |
5863 | /* SAMPLE action for sFlow must be first action in any given list of |
5864 | * actions. At this point we do not have all information required to | |
5865 | * build it. So try to build sample action as complete as possible. */ | |
6ff686f2 | 5866 | static void |
f03a84b9 | 5867 | add_sflow_action(struct xlate_ctx *ctx) |
6ff686f2 PS |
5868 | { |
5869 | ctx->user_cookie_offset = compose_sflow_action(ctx->ofproto, | |
bbafd73b EJ |
5870 | &ctx->xout->odp_actions, |
5871 | &ctx->xin->flow, OVSP_NONE); | |
6ff686f2 PS |
5872 | ctx->sflow_odp_port = 0; |
5873 | ctx->sflow_n_outputs = 0; | |
5874 | } | |
5875 | ||
29089a54 RL |
5876 | /* SAMPLE action for IPFIX must be 1st or 2nd action in any given list |
5877 | * of actions, eventually after the SAMPLE action for sFlow. */ | |
5878 | static void | |
f03a84b9 | 5879 | add_ipfix_action(struct xlate_ctx *ctx) |
29089a54 | 5880 | { |
bbafd73b EJ |
5881 | compose_ipfix_action(ctx->ofproto, &ctx->xout->odp_actions, |
5882 | &ctx->xin->flow); | |
29089a54 RL |
5883 | } |
5884 | ||
6ff686f2 PS |
5885 | /* Fix SAMPLE action according to data collected while composing ODP actions. |
5886 | * We need to fix SAMPLE actions OVS_SAMPLE_ATTR_ACTIONS attribute, i.e. nested | |
5887 | * USERSPACE action's user-cookie which is required for sflow. */ | |
5888 | static void | |
f03a84b9 | 5889 | fix_sflow_action(struct xlate_ctx *ctx) |
6ff686f2 PS |
5890 | { |
5891 | const struct flow *base = &ctx->base_flow; | |
1673e0e4 | 5892 | union user_action_cookie *cookie; |
6ff686f2 PS |
5893 | |
5894 | if (!ctx->user_cookie_offset) { | |
5895 | return; | |
5896 | } | |
5897 | ||
bbafd73b | 5898 | cookie = ofpbuf_at(&ctx->xout->odp_actions, ctx->user_cookie_offset, |
a93f1927 | 5899 | sizeof cookie->sflow); |
cb22974d | 5900 | ovs_assert(cookie->type == USER_ACTION_COOKIE_SFLOW); |
6ff686f2 | 5901 | |
36fc5f18 BP |
5902 | compose_sflow_cookie(ctx->ofproto, base->vlan_tci, |
5903 | ctx->sflow_odp_port, ctx->sflow_n_outputs, cookie); | |
6ff686f2 PS |
5904 | } |
5905 | ||
6ff686f2 | 5906 | static void |
f03a84b9 | 5907 | compose_output_action__(struct xlate_ctx *ctx, uint16_t ofp_port, |
81b1afb1 | 5908 | bool check_stp) |
6ff686f2 | 5909 | { |
d59906fb | 5910 | const struct ofport_dpif *ofport = get_ofp_port(ctx->ofproto, ofp_port); |
d8558b4a JR |
5911 | ovs_be16 flow_vlan_tci; |
5912 | uint32_t flow_skb_mark; | |
5913 | uint8_t flow_nw_tos; | |
a4454ac6 | 5914 | struct priority_to_dscp *pdscp; |
0a740f48 EJ |
5915 | uint32_t out_port, odp_port; |
5916 | ||
5917 | /* If 'struct flow' gets additional metadata, we'll need to zero it out | |
5918 | * before traversing a patch port. */ | |
cff78c88 | 5919 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 20); |
d59906fb | 5920 | |
a4454ac6 EJ |
5921 | if (!ofport) { |
5922 | xlate_report(ctx, "Nonexistent output port"); | |
5923 | return; | |
5924 | } else if (ofport->up.pp.config & OFPUTIL_PC_NO_FWD) { | |
5925 | xlate_report(ctx, "OFPPC_NO_FWD set, skipping output"); | |
5926 | return; | |
5927 | } else if (check_stp && !stp_forward_in_state(ofport->stp_state)) { | |
5928 | xlate_report(ctx, "STP not in forwarding state, skipping output"); | |
5929 | return; | |
5930 | } | |
8b36f51e | 5931 | |
0a740f48 EJ |
5932 | if (netdev_vport_is_patch(ofport->up.netdev)) { |
5933 | struct ofport_dpif *peer = ofport_get_peer(ofport); | |
bbafd73b | 5934 | struct flow old_flow = ctx->xin->flow; |
0a740f48 | 5935 | const struct ofproto_dpif *peer_ofproto; |
bb374ef6 | 5936 | enum slow_path_reason special; |
ffaef958 | 5937 | struct ofport_dpif *in_port; |
0a740f48 EJ |
5938 | |
5939 | if (!peer) { | |
5940 | xlate_report(ctx, "Nonexistent patch port peer"); | |
5941 | return; | |
5942 | } | |
5943 | ||
5944 | peer_ofproto = ofproto_dpif_cast(peer->up.ofproto); | |
5945 | if (peer_ofproto->backer != ctx->ofproto->backer) { | |
5946 | xlate_report(ctx, "Patch port peer on a different datapath"); | |
5947 | return; | |
5948 | } | |
5949 | ||
5950 | ctx->ofproto = ofproto_dpif_cast(peer->up.ofproto); | |
bbafd73b EJ |
5951 | ctx->xin->flow.in_port = peer->up.ofp_port; |
5952 | ctx->xin->flow.metadata = htonll(0); | |
5953 | memset(&ctx->xin->flow.tunnel, 0, sizeof ctx->xin->flow.tunnel); | |
5954 | memset(ctx->xin->flow.regs, 0, sizeof ctx->xin->flow.regs); | |
5955 | ||
5956 | in_port = get_ofp_port(ctx->ofproto, ctx->xin->flow.in_port); | |
5957 | special = process_special(ctx->ofproto, &ctx->xin->flow, in_port, | |
5958 | ctx->xin->packet); | |
bb374ef6 | 5959 | if (special) { |
bbafd73b | 5960 | ctx->xout->slow = special; |
bb374ef6 | 5961 | } else if (!in_port || may_receive(in_port, ctx)) { |
ffaef958 | 5962 | if (!in_port || stp_forward_in_state(in_port->stp_state)) { |
bbafd73b | 5963 | xlate_table_action(ctx, ctx->xin->flow.in_port, 0, true); |
ffaef958 BP |
5964 | } else { |
5965 | /* Forwarding is disabled by STP. Let OFPP_NORMAL and the | |
5966 | * learning action look at the packet, then drop it. */ | |
5967 | struct flow old_base_flow = ctx->base_flow; | |
bbafd73b EJ |
5968 | size_t old_size = ctx->xout->odp_actions.size; |
5969 | xlate_table_action(ctx, ctx->xin->flow.in_port, 0, true); | |
ffaef958 | 5970 | ctx->base_flow = old_base_flow; |
bbafd73b | 5971 | ctx->xout->odp_actions.size = old_size; |
ffaef958 BP |
5972 | } |
5973 | } | |
5974 | ||
bbafd73b | 5975 | ctx->xin->flow = old_flow; |
0a740f48 EJ |
5976 | ctx->ofproto = ofproto_dpif_cast(ofport->up.ofproto); |
5977 | ||
bbafd73b EJ |
5978 | if (ctx->xin->resubmit_stats) { |
5979 | netdev_vport_inc_tx(ofport->up.netdev, ctx->xin->resubmit_stats); | |
5980 | netdev_vport_inc_rx(peer->up.netdev, ctx->xin->resubmit_stats); | |
0a740f48 EJ |
5981 | } |
5982 | ||
5983 | return; | |
5984 | } | |
5985 | ||
bbafd73b EJ |
5986 | flow_vlan_tci = ctx->xin->flow.vlan_tci; |
5987 | flow_skb_mark = ctx->xin->flow.skb_mark; | |
5988 | flow_nw_tos = ctx->xin->flow.nw_tos; | |
d8558b4a | 5989 | |
bbafd73b | 5990 | pdscp = get_priority(ofport, ctx->xin->flow.skb_priority); |
a4454ac6 | 5991 | if (pdscp) { |
bbafd73b EJ |
5992 | ctx->xin->flow.nw_tos &= ~IP_DSCP_MASK; |
5993 | ctx->xin->flow.nw_tos |= pdscp->dscp; | |
d59906fb EJ |
5994 | } |
5995 | ||
b9ad7294 | 5996 | if (ofport->tnl_port) { |
d8558b4a JR |
5997 | /* Save tunnel metadata so that changes made due to |
5998 | * the Logical (tunnel) Port are not visible for any further | |
5999 | * matches, while explicit set actions on tunnel metadata are. | |
6000 | */ | |
bbafd73b EJ |
6001 | struct flow_tnl flow_tnl = ctx->xin->flow.tunnel; |
6002 | odp_port = tnl_port_send(ofport->tnl_port, &ctx->xin->flow); | |
b9ad7294 EJ |
6003 | if (odp_port == OVSP_NONE) { |
6004 | xlate_report(ctx, "Tunneling decided against output"); | |
88e90491 | 6005 | goto out; /* restore flow_nw_tos */ |
b9ad7294 | 6006 | } |
bbafd73b | 6007 | if (ctx->xin->flow.tunnel.ip_dst == ctx->orig_tunnel_ip_dst) { |
0ad90c84 JR |
6008 | xlate_report(ctx, "Not tunneling to our own address"); |
6009 | goto out; /* restore flow_nw_tos */ | |
6010 | } | |
bbafd73b EJ |
6011 | if (ctx->xin->resubmit_stats) { |
6012 | netdev_vport_inc_tx(ofport->up.netdev, ctx->xin->resubmit_stats); | |
b9ad7294 EJ |
6013 | } |
6014 | out_port = odp_port; | |
bbafd73b EJ |
6015 | commit_odp_tunnel_action(&ctx->xin->flow, &ctx->base_flow, |
6016 | &ctx->xout->odp_actions); | |
6017 | ctx->xin->flow.tunnel = flow_tnl; /* Restore tunnel metadata */ | |
b9ad7294 | 6018 | } else { |
deea1200 | 6019 | uint16_t vlandev_port; |
cf630ea3 | 6020 | odp_port = ofport->odp_port; |
deea1200 AW |
6021 | vlandev_port = vsp_realdev_to_vlandev(ctx->ofproto, ofp_port, |
6022 | ctx->xin->flow.vlan_tci); | |
6023 | if (vlandev_port == ofp_port) { | |
6024 | out_port = odp_port; | |
6025 | } else { | |
6026 | out_port = ofp_port_to_odp_port(ctx->ofproto, vlandev_port); | |
bbafd73b | 6027 | ctx->xin->flow.vlan_tci = htons(0); |
b9ad7294 | 6028 | } |
bbafd73b | 6029 | ctx->xin->flow.skb_mark &= ~IPSEC_MARK; |
52a90c29 | 6030 | } |
bbafd73b EJ |
6031 | commit_odp_actions(&ctx->xin->flow, &ctx->base_flow, |
6032 | &ctx->xout->odp_actions); | |
6033 | nl_msg_put_u32(&ctx->xout->odp_actions, OVS_ACTION_ATTR_OUTPUT, out_port); | |
52a90c29 | 6034 | |
6ff686f2 PS |
6035 | ctx->sflow_odp_port = odp_port; |
6036 | ctx->sflow_n_outputs++; | |
bbafd73b | 6037 | ctx->xout->nf_output_iface = ofp_port; |
d8558b4a JR |
6038 | |
6039 | /* Restore flow */ | |
bbafd73b EJ |
6040 | ctx->xin->flow.vlan_tci = flow_vlan_tci; |
6041 | ctx->xin->flow.skb_mark = flow_skb_mark; | |
88e90491 | 6042 | out: |
bbafd73b | 6043 | ctx->xin->flow.nw_tos = flow_nw_tos; |
6ff686f2 PS |
6044 | } |
6045 | ||
abe529af | 6046 | static void |
f03a84b9 | 6047 | compose_output_action(struct xlate_ctx *ctx, uint16_t ofp_port) |
abe529af | 6048 | { |
81b1afb1 | 6049 | compose_output_action__(ctx, ofp_port, true); |
abe529af BP |
6050 | } |
6051 | ||
55599423 | 6052 | static void |
f03a84b9 | 6053 | tag_the_flow(struct xlate_ctx *ctx, struct rule_dpif *rule) |
55599423 JR |
6054 | { |
6055 | struct ofproto_dpif *ofproto = ctx->ofproto; | |
6056 | uint8_t table_id = ctx->table_id; | |
6057 | ||
6058 | if (table_id > 0 && table_id < N_TABLES) { | |
6059 | struct table_dpif *table = &ofproto->tables[table_id]; | |
6060 | if (table->other_table) { | |
bbafd73b EJ |
6061 | ctx->xout->tags |= (rule && rule->tag |
6062 | ? rule->tag | |
6063 | : rule_calculate_tag(&ctx->xin->flow, | |
6064 | &table->other_table->mask, | |
6065 | table->basis)); | |
55599423 JR |
6066 | } |
6067 | } | |
6068 | } | |
6069 | ||
6070 | /* Common rule processing in one place to avoid duplicating code. */ | |
6071 | static struct rule_dpif * | |
f03a84b9 | 6072 | ctx_rule_hooks(struct xlate_ctx *ctx, struct rule_dpif *rule, |
55599423 JR |
6073 | bool may_packet_in) |
6074 | { | |
bbafd73b EJ |
6075 | if (ctx->xin->resubmit_hook) { |
6076 | ctx->xin->resubmit_hook(ctx, rule); | |
55599423 JR |
6077 | } |
6078 | if (rule == NULL && may_packet_in) { | |
6079 | /* XXX | |
6080 | * check if table configuration flags | |
6081 | * OFPTC_TABLE_MISS_CONTROLLER, default. | |
6082 | * OFPTC_TABLE_MISS_CONTINUE, | |
6083 | * OFPTC_TABLE_MISS_DROP | |
6084 | * When OF1.0, OFPTC_TABLE_MISS_CONTINUE is used. What to do? | |
6085 | */ | |
bbafd73b | 6086 | rule = rule_dpif_miss_rule(ctx->ofproto, &ctx->xin->flow); |
55599423 | 6087 | } |
bbafd73b EJ |
6088 | if (rule && ctx->xin->resubmit_stats) { |
6089 | rule_credit_stats(rule, ctx->xin->resubmit_stats); | |
55599423 JR |
6090 | } |
6091 | return rule; | |
6092 | } | |
6093 | ||
abe529af | 6094 | static void |
f03a84b9 | 6095 | xlate_table_action(struct xlate_ctx *ctx, |
1688c479 | 6096 | uint16_t in_port, uint8_t table_id, bool may_packet_in) |
abe529af BP |
6097 | { |
6098 | if (ctx->recurse < MAX_RESUBMIT_RECURSION) { | |
6099 | struct rule_dpif *rule; | |
bbafd73b | 6100 | uint16_t old_in_port = ctx->xin->flow.in_port; |
55599423 | 6101 | uint8_t old_table_id = ctx->table_id; |
29901626 | 6102 | |
29901626 | 6103 | ctx->table_id = table_id; |
abe529af | 6104 | |
54a9cbc9 | 6105 | /* Look up a flow with 'in_port' as the input port. */ |
bbafd73b EJ |
6106 | ctx->xin->flow.in_port = in_port; |
6107 | rule = rule_dpif_lookup__(ctx->ofproto, &ctx->xin->flow, table_id); | |
55599423 JR |
6108 | |
6109 | tag_the_flow(ctx, rule); | |
54a9cbc9 BP |
6110 | |
6111 | /* Restore the original input port. Otherwise OFPP_NORMAL and | |
6112 | * OFPP_IN_PORT will have surprising behavior. */ | |
bbafd73b | 6113 | ctx->xin->flow.in_port = old_in_port; |
abe529af | 6114 | |
55599423 | 6115 | rule = ctx_rule_hooks(ctx, rule, may_packet_in); |
1688c479 | 6116 | |
abe529af | 6117 | if (rule) { |
18b2a258 | 6118 | struct rule_dpif *old_rule = ctx->rule; |
54834960 | 6119 | |
abe529af | 6120 | ctx->recurse++; |
18b2a258 | 6121 | ctx->rule = rule; |
f25d0cf3 | 6122 | do_xlate_actions(rule->up.ofpacts, rule->up.ofpacts_len, ctx); |
18b2a258 | 6123 | ctx->rule = old_rule; |
abe529af BP |
6124 | ctx->recurse--; |
6125 | } | |
29901626 BP |
6126 | |
6127 | ctx->table_id = old_table_id; | |
abe529af BP |
6128 | } else { |
6129 | static struct vlog_rate_limit recurse_rl = VLOG_RATE_LIMIT_INIT(1, 1); | |
6130 | ||
29901626 | 6131 | VLOG_ERR_RL(&recurse_rl, "resubmit actions recursed over %d times", |
abe529af | 6132 | MAX_RESUBMIT_RECURSION); |
6a6455e5 | 6133 | ctx->max_resubmit_trigger = true; |
abe529af BP |
6134 | } |
6135 | } | |
6136 | ||
29901626 | 6137 | static void |
f03a84b9 | 6138 | xlate_ofpact_resubmit(struct xlate_ctx *ctx, |
f25d0cf3 | 6139 | const struct ofpact_resubmit *resubmit) |
29901626 BP |
6140 | { |
6141 | uint16_t in_port; | |
6142 | uint8_t table_id; | |
6143 | ||
f25d0cf3 BP |
6144 | in_port = resubmit->in_port; |
6145 | if (in_port == OFPP_IN_PORT) { | |
bbafd73b | 6146 | in_port = ctx->xin->flow.in_port; |
f25d0cf3 BP |
6147 | } |
6148 | ||
6149 | table_id = resubmit->table_id; | |
6150 | if (table_id == 255) { | |
6151 | table_id = ctx->table_id; | |
6152 | } | |
29901626 | 6153 | |
1688c479 | 6154 | xlate_table_action(ctx, in_port, table_id, false); |
29901626 BP |
6155 | } |
6156 | ||
abe529af | 6157 | static void |
f03a84b9 | 6158 | flood_packets(struct xlate_ctx *ctx, bool all) |
abe529af BP |
6159 | { |
6160 | struct ofport_dpif *ofport; | |
6161 | ||
b3e9b2ed | 6162 | HMAP_FOR_EACH (ofport, up.hmap_node, &ctx->ofproto->up.ports) { |
abe529af | 6163 | uint16_t ofp_port = ofport->up.ofp_port; |
d59906fb | 6164 | |
bbafd73b | 6165 | if (ofp_port == ctx->xin->flow.in_port) { |
d59906fb EJ |
6166 | continue; |
6167 | } | |
6168 | ||
5e48dc2b | 6169 | if (all) { |
81b1afb1 | 6170 | compose_output_action__(ctx, ofp_port, false); |
9e1fd49b | 6171 | } else if (!(ofport->up.pp.config & OFPUTIL_PC_NO_FLOOD)) { |
5e48dc2b | 6172 | compose_output_action(ctx, ofp_port); |
abe529af BP |
6173 | } |
6174 | } | |
b3e9b2ed | 6175 | |
bbafd73b | 6176 | ctx->xout->nf_output_iface = NF_OUT_FLOOD; |
abe529af BP |
6177 | } |
6178 | ||
6ff686f2 | 6179 | static void |
f03a84b9 | 6180 | execute_controller_action(struct xlate_ctx *ctx, int len, |
a7349929 BP |
6181 | enum ofp_packet_in_reason reason, |
6182 | uint16_t controller_id) | |
6ff686f2 | 6183 | { |
999fba59 EJ |
6184 | struct ofputil_packet_in pin; |
6185 | struct ofpbuf *packet; | |
1ac7c9bd | 6186 | struct flow key; |
6ff686f2 | 6187 | |
bbafd73b EJ |
6188 | ovs_assert(!ctx->xout->slow || ctx->xout->slow == SLOW_CONTROLLER); |
6189 | ctx->xout->slow = SLOW_CONTROLLER; | |
6190 | if (!ctx->xin->packet) { | |
999fba59 EJ |
6191 | return; |
6192 | } | |
6193 | ||
bbafd73b | 6194 | packet = ofpbuf_clone(ctx->xin->packet); |
999fba59 | 6195 | |
1ac7c9bd SH |
6196 | key.skb_priority = 0; |
6197 | key.skb_mark = 0; | |
6198 | memset(&key.tunnel, 0, sizeof key.tunnel); | |
999fba59 | 6199 | |
1ac7c9bd SH |
6200 | commit_odp_actions(&ctx->xin->flow, &ctx->base_flow, |
6201 | &ctx->xout->odp_actions); | |
999fba59 | 6202 | |
1ac7c9bd SH |
6203 | odp_execute_actions(NULL, packet, &key, ctx->xout->odp_actions.data, |
6204 | ctx->xout->odp_actions.size, NULL, NULL); | |
999fba59 EJ |
6205 | |
6206 | pin.packet = packet->data; | |
6207 | pin.packet_len = packet->size; | |
f0fd1a17 | 6208 | pin.reason = reason; |
a7349929 | 6209 | pin.controller_id = controller_id; |
54834960 | 6210 | pin.table_id = ctx->table_id; |
18b2a258 | 6211 | pin.cookie = ctx->rule ? ctx->rule->up.flow_cookie : 0; |
54834960 | 6212 | |
999fba59 | 6213 | pin.send_len = len; |
bbafd73b | 6214 | flow_get_metadata(&ctx->xin->flow, &pin.fmd); |
999fba59 | 6215 | |
d8653c38 | 6216 | connmgr_send_packet_in(ctx->ofproto->up.connmgr, &pin); |
999fba59 | 6217 | ofpbuf_delete(packet); |
6ff686f2 PS |
6218 | } |
6219 | ||
b02475c5 | 6220 | static void |
f03a84b9 | 6221 | execute_mpls_push_action(struct xlate_ctx *ctx, ovs_be16 eth_type) |
b02475c5 SH |
6222 | { |
6223 | ovs_assert(eth_type_mpls(eth_type)); | |
6224 | ||
6225 | if (ctx->base_flow.mpls_depth) { | |
bbafd73b EJ |
6226 | ctx->xin->flow.mpls_lse &= ~htonl(MPLS_BOS_MASK); |
6227 | ctx->xin->flow.mpls_depth++; | |
b02475c5 SH |
6228 | } else { |
6229 | ovs_be32 label; | |
6230 | uint8_t tc, ttl; | |
6231 | ||
bbafd73b | 6232 | if (ctx->xin->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
b02475c5 SH |
6233 | label = htonl(0x2); /* IPV6 Explicit Null. */ |
6234 | } else { | |
6235 | label = htonl(0x0); /* IPV4 Explicit Null. */ | |
6236 | } | |
bbafd73b EJ |
6237 | tc = (ctx->xin->flow.nw_tos & IP_DSCP_MASK) >> 2; |
6238 | ttl = ctx->xin->flow.nw_ttl ? ctx->xin->flow.nw_ttl : 0x40; | |
6239 | ctx->xin->flow.mpls_lse = set_mpls_lse_values(ttl, tc, 1, label); | |
6240 | ctx->xin->flow.mpls_depth = 1; | |
b02475c5 | 6241 | } |
bbafd73b | 6242 | ctx->xin->flow.dl_type = eth_type; |
b02475c5 SH |
6243 | } |
6244 | ||
6245 | static void | |
f03a84b9 | 6246 | execute_mpls_pop_action(struct xlate_ctx *ctx, ovs_be16 eth_type) |
b02475c5 | 6247 | { |
bbafd73b | 6248 | ovs_assert(eth_type_mpls(ctx->xin->flow.dl_type)); |
b02475c5 SH |
6249 | ovs_assert(!eth_type_mpls(eth_type)); |
6250 | ||
bbafd73b EJ |
6251 | if (ctx->xin->flow.mpls_depth) { |
6252 | ctx->xin->flow.mpls_depth--; | |
6253 | ctx->xin->flow.mpls_lse = htonl(0); | |
6254 | if (!ctx->xin->flow.mpls_depth) { | |
6255 | ctx->xin->flow.dl_type = eth_type; | |
b02475c5 SH |
6256 | } |
6257 | } | |
6258 | } | |
6259 | ||
f0fd1a17 | 6260 | static bool |
f03a84b9 | 6261 | compose_dec_ttl(struct xlate_ctx *ctx, struct ofpact_cnt_ids *ids) |
f0fd1a17 | 6262 | { |
bbafd73b EJ |
6263 | if (ctx->xin->flow.dl_type != htons(ETH_TYPE_IP) && |
6264 | ctx->xin->flow.dl_type != htons(ETH_TYPE_IPV6)) { | |
f0fd1a17 PS |
6265 | return false; |
6266 | } | |
6267 | ||
bbafd73b EJ |
6268 | if (ctx->xin->flow.nw_ttl > 1) { |
6269 | ctx->xin->flow.nw_ttl--; | |
f0fd1a17 PS |
6270 | return false; |
6271 | } else { | |
c2d967a5 MM |
6272 | size_t i; |
6273 | ||
6274 | for (i = 0; i < ids->n_controllers; i++) { | |
6275 | execute_controller_action(ctx, UINT16_MAX, OFPR_INVALID_TTL, | |
6276 | ids->cnt_ids[i]); | |
6277 | } | |
f0fd1a17 PS |
6278 | |
6279 | /* Stop processing for current table. */ | |
6280 | return true; | |
6281 | } | |
6282 | } | |
6283 | ||
0f3f3c3d | 6284 | static bool |
f03a84b9 | 6285 | execute_set_mpls_ttl_action(struct xlate_ctx *ctx, uint8_t ttl) |
0f3f3c3d | 6286 | { |
bbafd73b | 6287 | if (!eth_type_mpls(ctx->xin->flow.dl_type)) { |
0f3f3c3d SH |
6288 | return true; |
6289 | } | |
6290 | ||
bbafd73b | 6291 | set_mpls_lse_ttl(&ctx->xin->flow.mpls_lse, ttl); |
0f3f3c3d SH |
6292 | return false; |
6293 | } | |
6294 | ||
b676167a | 6295 | static bool |
f03a84b9 | 6296 | execute_dec_mpls_ttl_action(struct xlate_ctx *ctx) |
b676167a | 6297 | { |
bbafd73b | 6298 | uint8_t ttl = mpls_lse_to_ttl(ctx->xin->flow.mpls_lse); |
b676167a | 6299 | |
bbafd73b | 6300 | if (!eth_type_mpls(ctx->xin->flow.dl_type)) { |
b676167a SH |
6301 | return false; |
6302 | } | |
6303 | ||
be80bc65 | 6304 | if (ttl > 1) { |
b676167a | 6305 | ttl--; |
bbafd73b | 6306 | set_mpls_lse_ttl(&ctx->xin->flow.mpls_lse, ttl); |
b676167a SH |
6307 | return false; |
6308 | } else { | |
6309 | execute_controller_action(ctx, UINT16_MAX, OFPR_INVALID_TTL, 0); | |
6310 | ||
6311 | /* Stop processing for current table. */ | |
6312 | return true; | |
6313 | } | |
6314 | } | |
6315 | ||
abe529af | 6316 | static void |
f03a84b9 | 6317 | xlate_output_action(struct xlate_ctx *ctx, |
1688c479 | 6318 | uint16_t port, uint16_t max_len, bool may_packet_in) |
abe529af | 6319 | { |
bbafd73b | 6320 | uint16_t prev_nf_output_iface = ctx->xout->nf_output_iface; |
abe529af | 6321 | |
bbafd73b | 6322 | ctx->xout->nf_output_iface = NF_OUT_DROP; |
abe529af BP |
6323 | |
6324 | switch (port) { | |
6325 | case OFPP_IN_PORT: | |
bbafd73b | 6326 | compose_output_action(ctx, ctx->xin->flow.in_port); |
abe529af BP |
6327 | break; |
6328 | case OFPP_TABLE: | |
bbafd73b | 6329 | xlate_table_action(ctx, ctx->xin->flow.in_port, 0, may_packet_in); |
abe529af BP |
6330 | break; |
6331 | case OFPP_NORMAL: | |
6332 | xlate_normal(ctx); | |
6333 | break; | |
6334 | case OFPP_FLOOD: | |
d59906fb | 6335 | flood_packets(ctx, false); |
abe529af BP |
6336 | break; |
6337 | case OFPP_ALL: | |
d59906fb | 6338 | flood_packets(ctx, true); |
abe529af BP |
6339 | break; |
6340 | case OFPP_CONTROLLER: | |
a7349929 | 6341 | execute_controller_action(ctx, max_len, OFPR_ACTION, 0); |
abe529af | 6342 | break; |
e81d2933 EJ |
6343 | case OFPP_NONE: |
6344 | break; | |
a0fbe94a | 6345 | case OFPP_LOCAL: |
abe529af | 6346 | default: |
bbafd73b | 6347 | if (port != ctx->xin->flow.in_port) { |
81b1afb1 | 6348 | compose_output_action(ctx, port); |
3dd3eace BP |
6349 | } else { |
6350 | xlate_report(ctx, "skipping output to input port"); | |
abe529af BP |
6351 | } |
6352 | break; | |
6353 | } | |
6354 | ||
6355 | if (prev_nf_output_iface == NF_OUT_FLOOD) { | |
bbafd73b EJ |
6356 | ctx->xout->nf_output_iface = NF_OUT_FLOOD; |
6357 | } else if (ctx->xout->nf_output_iface == NF_OUT_DROP) { | |
6358 | ctx->xout->nf_output_iface = prev_nf_output_iface; | |
abe529af | 6359 | } else if (prev_nf_output_iface != NF_OUT_DROP && |
bbafd73b EJ |
6360 | ctx->xout->nf_output_iface != NF_OUT_FLOOD) { |
6361 | ctx->xout->nf_output_iface = NF_OUT_MULTI; | |
abe529af BP |
6362 | } |
6363 | } | |
6364 | ||
f694937d | 6365 | static void |
f03a84b9 | 6366 | xlate_output_reg_action(struct xlate_ctx *ctx, |
f25d0cf3 | 6367 | const struct ofpact_output_reg *or) |
f694937d | 6368 | { |
bbafd73b | 6369 | uint64_t port = mf_get_subfield(&or->src, &ctx->xin->flow); |
f25d0cf3 | 6370 | if (port <= UINT16_MAX) { |
1688c479 | 6371 | xlate_output_action(ctx, port, or->max_len, false); |
f694937d EJ |
6372 | } |
6373 | } | |
6374 | ||
abe529af | 6375 | static void |
f03a84b9 | 6376 | xlate_enqueue_action(struct xlate_ctx *ctx, |
f25d0cf3 | 6377 | const struct ofpact_enqueue *enqueue) |
abe529af | 6378 | { |
f25d0cf3 BP |
6379 | uint16_t ofp_port = enqueue->port; |
6380 | uint32_t queue_id = enqueue->queue; | |
abff858b | 6381 | uint32_t flow_priority, priority; |
abe529af BP |
6382 | int error; |
6383 | ||
f25d0cf3 | 6384 | /* Translate queue to priority. */ |
acf60855 JP |
6385 | error = dpif_queue_to_priority(ctx->ofproto->backer->dpif, |
6386 | queue_id, &priority); | |
abe529af BP |
6387 | if (error) { |
6388 | /* Fall back to ordinary output action. */ | |
1688c479 | 6389 | xlate_output_action(ctx, enqueue->port, 0, false); |
abe529af BP |
6390 | return; |
6391 | } | |
6392 | ||
f25d0cf3 | 6393 | /* Check output port. */ |
abe529af | 6394 | if (ofp_port == OFPP_IN_PORT) { |
bbafd73b EJ |
6395 | ofp_port = ctx->xin->flow.in_port; |
6396 | } else if (ofp_port == ctx->xin->flow.in_port) { | |
8ba855c1 | 6397 | return; |
abe529af | 6398 | } |
abe529af | 6399 | |
df2c07f4 | 6400 | /* Add datapath actions. */ |
bbafd73b EJ |
6401 | flow_priority = ctx->xin->flow.skb_priority; |
6402 | ctx->xin->flow.skb_priority = priority; | |
81b1afb1 | 6403 | compose_output_action(ctx, ofp_port); |
bbafd73b | 6404 | ctx->xin->flow.skb_priority = flow_priority; |
abe529af BP |
6405 | |
6406 | /* Update NetFlow output port. */ | |
bbafd73b EJ |
6407 | if (ctx->xout->nf_output_iface == NF_OUT_DROP) { |
6408 | ctx->xout->nf_output_iface = ofp_port; | |
6409 | } else if (ctx->xout->nf_output_iface != NF_OUT_FLOOD) { | |
6410 | ctx->xout->nf_output_iface = NF_OUT_MULTI; | |
abe529af BP |
6411 | } |
6412 | } | |
6413 | ||
6414 | static void | |
f03a84b9 | 6415 | xlate_set_queue_action(struct xlate_ctx *ctx, uint32_t queue_id) |
abe529af | 6416 | { |
f25d0cf3 | 6417 | uint32_t skb_priority; |
abe529af | 6418 | |
acf60855 JP |
6419 | if (!dpif_queue_to_priority(ctx->ofproto->backer->dpif, |
6420 | queue_id, &skb_priority)) { | |
bbafd73b | 6421 | ctx->xin->flow.skb_priority = skb_priority; |
f25d0cf3 BP |
6422 | } else { |
6423 | /* Couldn't translate queue to a priority. Nothing to do. A warning | |
abe529af | 6424 | * has already been logged. */ |
abe529af | 6425 | } |
abe529af BP |
6426 | } |
6427 | ||
daff3353 EJ |
6428 | static bool |
6429 | slave_enabled_cb(uint16_t ofp_port, void *ofproto_) | |
6430 | { | |
6431 | struct ofproto_dpif *ofproto = ofproto_; | |
6432 | struct ofport_dpif *port; | |
6433 | ||
6434 | switch (ofp_port) { | |
6435 | case OFPP_IN_PORT: | |
6436 | case OFPP_TABLE: | |
6437 | case OFPP_NORMAL: | |
6438 | case OFPP_FLOOD: | |
6439 | case OFPP_ALL: | |
439e4d8c | 6440 | case OFPP_NONE: |
daff3353 EJ |
6441 | return true; |
6442 | case OFPP_CONTROLLER: /* Not supported by the bundle action. */ | |
6443 | return false; | |
6444 | default: | |
6445 | port = get_ofp_port(ofproto, ofp_port); | |
6446 | return port ? port->may_enable : false; | |
6447 | } | |
6448 | } | |
6449 | ||
f25d0cf3 | 6450 | static void |
f03a84b9 | 6451 | xlate_bundle_action(struct xlate_ctx *ctx, |
f25d0cf3 BP |
6452 | const struct ofpact_bundle *bundle) |
6453 | { | |
6454 | uint16_t port; | |
6455 | ||
bbafd73b EJ |
6456 | port = bundle_execute(bundle, &ctx->xin->flow, slave_enabled_cb, |
6457 | ctx->ofproto); | |
f25d0cf3 | 6458 | if (bundle->dst.field) { |
bbafd73b | 6459 | nxm_reg_load(&bundle->dst, port, &ctx->xin->flow); |
f25d0cf3 | 6460 | } else { |
1688c479 | 6461 | xlate_output_action(ctx, port, 0, false); |
f25d0cf3 BP |
6462 | } |
6463 | } | |
6464 | ||
75a75043 | 6465 | static void |
f03a84b9 | 6466 | xlate_learn_action(struct xlate_ctx *ctx, |
f25d0cf3 | 6467 | const struct ofpact_learn *learn) |
75a75043 BP |
6468 | { |
6469 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 1); | |
6470 | struct ofputil_flow_mod fm; | |
f25d0cf3 BP |
6471 | uint64_t ofpacts_stub[1024 / 8]; |
6472 | struct ofpbuf ofpacts; | |
75a75043 BP |
6473 | int error; |
6474 | ||
f25d0cf3 | 6475 | ofpbuf_use_stack(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
bbafd73b | 6476 | learn_execute(learn, &ctx->xin->flow, &fm, &ofpacts); |
75a75043 BP |
6477 | |
6478 | error = ofproto_flow_mod(&ctx->ofproto->up, &fm); | |
6479 | if (error && !VLOG_DROP_WARN(&rl)) { | |
90bf1e07 BP |
6480 | VLOG_WARN("learning action failed to modify flow table (%s)", |
6481 | ofperr_get_name(error)); | |
75a75043 BP |
6482 | } |
6483 | ||
f25d0cf3 | 6484 | ofpbuf_uninit(&ofpacts); |
75a75043 BP |
6485 | } |
6486 | ||
0e553d9c BP |
6487 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case |
6488 | * means "infinite". */ | |
6489 | static void | |
6490 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
6491 | { | |
6492 | if (max && (!*timeout || *timeout > max)) { | |
6493 | *timeout = max; | |
6494 | } | |
6495 | } | |
6496 | ||
6497 | static void | |
f03a84b9 | 6498 | xlate_fin_timeout(struct xlate_ctx *ctx, |
f25d0cf3 | 6499 | const struct ofpact_fin_timeout *oft) |
0e553d9c | 6500 | { |
bbafd73b | 6501 | if (ctx->xin->tcp_flags & (TCP_FIN | TCP_RST) && ctx->rule) { |
0e553d9c BP |
6502 | struct rule_dpif *rule = ctx->rule; |
6503 | ||
f25d0cf3 BP |
6504 | reduce_timeout(oft->fin_idle_timeout, &rule->up.idle_timeout); |
6505 | reduce_timeout(oft->fin_hard_timeout, &rule->up.hard_timeout); | |
0e553d9c BP |
6506 | } |
6507 | } | |
6508 | ||
29089a54 | 6509 | static void |
f03a84b9 | 6510 | xlate_sample_action(struct xlate_ctx *ctx, |
29089a54 RL |
6511 | const struct ofpact_sample *os) |
6512 | { | |
6513 | union user_action_cookie cookie; | |
6514 | /* Scale the probability from 16-bit to 32-bit while representing | |
6515 | * the same percentage. */ | |
6516 | uint32_t probability = (os->probability << 16) | os->probability; | |
6517 | ||
bbafd73b EJ |
6518 | commit_odp_actions(&ctx->xin->flow, &ctx->base_flow, |
6519 | &ctx->xout->odp_actions); | |
29089a54 RL |
6520 | |
6521 | compose_flow_sample_cookie(os->probability, os->collector_set_id, | |
6522 | os->obs_domain_id, os->obs_point_id, &cookie); | |
bbafd73b | 6523 | compose_sample_action(ctx->ofproto, &ctx->xout->odp_actions, &ctx->xin->flow, |
29089a54 RL |
6524 | probability, &cookie, sizeof cookie.flow_sample); |
6525 | } | |
6526 | ||
21f7563c | 6527 | static bool |
f03a84b9 | 6528 | may_receive(const struct ofport_dpif *port, struct xlate_ctx *ctx) |
21f7563c | 6529 | { |
bbafd73b EJ |
6530 | if (port->up.pp.config & (eth_addr_equals(ctx->xin->flow.dl_dst, |
6531 | eth_addr_stp) | |
9e1fd49b BP |
6532 | ? OFPUTIL_PC_NO_RECV_STP |
6533 | : OFPUTIL_PC_NO_RECV)) { | |
21f7563c JP |
6534 | return false; |
6535 | } | |
6536 | ||
6537 | /* Only drop packets here if both forwarding and learning are | |
6538 | * disabled. If just learning is enabled, we need to have | |
6539 | * OFPP_NORMAL and the learning action have a look at the packet | |
6540 | * before we can drop it. */ | |
6541 | if (!stp_forward_in_state(port->stp_state) | |
6542 | && !stp_learn_in_state(port->stp_state)) { | |
6543 | return false; | |
6544 | } | |
6545 | ||
6546 | return true; | |
6547 | } | |
6548 | ||
4863c249 | 6549 | static bool |
f03a84b9 | 6550 | tunnel_ecn_ok(struct xlate_ctx *ctx) |
4863c249 JP |
6551 | { |
6552 | if (is_ip_any(&ctx->base_flow) | |
bbafd73b | 6553 | && (ctx->xin->flow.tunnel.ip_tos & IP_ECN_MASK) == IP_ECN_CE) { |
29a5df0a JP |
6554 | if ((ctx->base_flow.nw_tos & IP_ECN_MASK) == IP_ECN_NOT_ECT) { |
6555 | VLOG_WARN_RL(&rl, "dropping tunnel packet marked ECN CE" | |
6556 | " but is not ECN capable"); | |
6557 | return false; | |
6558 | } else { | |
6559 | /* Set the ECN CE value in the tunneled packet. */ | |
bbafd73b | 6560 | ctx->xin->flow.nw_tos |= IP_ECN_CE; |
29a5df0a | 6561 | } |
4863c249 JP |
6562 | } |
6563 | ||
6564 | return true; | |
6565 | } | |
6566 | ||
abe529af | 6567 | static void |
f25d0cf3 | 6568 | do_xlate_actions(const struct ofpact *ofpacts, size_t ofpacts_len, |
f03a84b9 | 6569 | struct xlate_ctx *ctx) |
abe529af | 6570 | { |
254750ce | 6571 | bool was_evictable = true; |
f25d0cf3 | 6572 | const struct ofpact *a; |
abe529af | 6573 | |
254750ce BP |
6574 | if (ctx->rule) { |
6575 | /* Don't let the rule we're working on get evicted underneath us. */ | |
6576 | was_evictable = ctx->rule->up.evictable; | |
6577 | ctx->rule->up.evictable = false; | |
6578 | } | |
55599423 JR |
6579 | |
6580 | do_xlate_actions_again: | |
f25d0cf3 BP |
6581 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { |
6582 | struct ofpact_controller *controller; | |
4cceacb9 | 6583 | const struct ofpact_metadata *metadata; |
38f2e360 | 6584 | |
848e8809 EJ |
6585 | if (ctx->exit) { |
6586 | break; | |
6587 | } | |
6588 | ||
f25d0cf3 BP |
6589 | switch (a->type) { |
6590 | case OFPACT_OUTPUT: | |
6591 | xlate_output_action(ctx, ofpact_get_OUTPUT(a)->port, | |
1688c479 | 6592 | ofpact_get_OUTPUT(a)->max_len, true); |
f25d0cf3 BP |
6593 | break; |
6594 | ||
6595 | case OFPACT_CONTROLLER: | |
6596 | controller = ofpact_get_CONTROLLER(a); | |
6597 | execute_controller_action(ctx, controller->max_len, | |
6598 | controller->reason, | |
6599 | controller->controller_id); | |
6600 | break; | |
690a61c5 | 6601 | |
f25d0cf3 BP |
6602 | case OFPACT_ENQUEUE: |
6603 | xlate_enqueue_action(ctx, ofpact_get_ENQUEUE(a)); | |
abe529af BP |
6604 | break; |
6605 | ||
f25d0cf3 | 6606 | case OFPACT_SET_VLAN_VID: |
bbafd73b EJ |
6607 | ctx->xin->flow.vlan_tci &= ~htons(VLAN_VID_MASK); |
6608 | ctx->xin->flow.vlan_tci |= | |
6609 | (htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid) | |
6610 | | htons(VLAN_CFI)); | |
abe529af BP |
6611 | break; |
6612 | ||
f25d0cf3 | 6613 | case OFPACT_SET_VLAN_PCP: |
bbafd73b EJ |
6614 | ctx->xin->flow.vlan_tci &= ~htons(VLAN_PCP_MASK); |
6615 | ctx->xin->flow.vlan_tci |= | |
6616 | htons((ofpact_get_SET_VLAN_PCP(a)->vlan_pcp << VLAN_PCP_SHIFT) | |
6617 | | VLAN_CFI); | |
abe529af BP |
6618 | break; |
6619 | ||
f25d0cf3 | 6620 | case OFPACT_STRIP_VLAN: |
bbafd73b | 6621 | ctx->xin->flow.vlan_tci = htons(0); |
abe529af BP |
6622 | break; |
6623 | ||
3e34fbdd | 6624 | case OFPACT_PUSH_VLAN: |
5dca28b5 | 6625 | /* XXX 802.1AD(QinQ) */ |
bbafd73b | 6626 | ctx->xin->flow.vlan_tci = htons(VLAN_CFI); |
3e34fbdd IY |
6627 | break; |
6628 | ||
f25d0cf3 | 6629 | case OFPACT_SET_ETH_SRC: |
bbafd73b | 6630 | memcpy(ctx->xin->flow.dl_src, ofpact_get_SET_ETH_SRC(a)->mac, |
f25d0cf3 | 6631 | ETH_ADDR_LEN); |
abe529af BP |
6632 | break; |
6633 | ||
f25d0cf3 | 6634 | case OFPACT_SET_ETH_DST: |
bbafd73b | 6635 | memcpy(ctx->xin->flow.dl_dst, ofpact_get_SET_ETH_DST(a)->mac, |
f25d0cf3 | 6636 | ETH_ADDR_LEN); |
abe529af BP |
6637 | break; |
6638 | ||
f25d0cf3 | 6639 | case OFPACT_SET_IPV4_SRC: |
bbafd73b EJ |
6640 | if (ctx->xin->flow.dl_type == htons(ETH_TYPE_IP)) { |
6641 | ctx->xin->flow.nw_src = ofpact_get_SET_IPV4_SRC(a)->ipv4; | |
1b035ef2 | 6642 | } |
abe529af BP |
6643 | break; |
6644 | ||
f25d0cf3 | 6645 | case OFPACT_SET_IPV4_DST: |
bbafd73b EJ |
6646 | if (ctx->xin->flow.dl_type == htons(ETH_TYPE_IP)) { |
6647 | ctx->xin->flow.nw_dst = ofpact_get_SET_IPV4_DST(a)->ipv4; | |
1b035ef2 | 6648 | } |
abe529af BP |
6649 | break; |
6650 | ||
f25d0cf3 | 6651 | case OFPACT_SET_IPV4_DSCP: |
c4f2731d | 6652 | /* OpenFlow 1.0 only supports IPv4. */ |
bbafd73b EJ |
6653 | if (ctx->xin->flow.dl_type == htons(ETH_TYPE_IP)) { |
6654 | ctx->xin->flow.nw_tos &= ~IP_DSCP_MASK; | |
6655 | ctx->xin->flow.nw_tos |= ofpact_get_SET_IPV4_DSCP(a)->dscp; | |
c4f2731d | 6656 | } |
abe529af BP |
6657 | break; |
6658 | ||
f25d0cf3 | 6659 | case OFPACT_SET_L4_SRC_PORT: |
bbafd73b EJ |
6660 | if (is_ip_any(&ctx->xin->flow)) { |
6661 | ctx->xin->flow.tp_src = | |
6662 | htons(ofpact_get_SET_L4_SRC_PORT(a)->port); | |
1b035ef2 | 6663 | } |
abe529af BP |
6664 | break; |
6665 | ||
f25d0cf3 | 6666 | case OFPACT_SET_L4_DST_PORT: |
bbafd73b EJ |
6667 | if (is_ip_any(&ctx->xin->flow)) { |
6668 | ctx->xin->flow.tp_dst = | |
6669 | htons(ofpact_get_SET_L4_DST_PORT(a)->port); | |
1b035ef2 | 6670 | } |
abe529af BP |
6671 | break; |
6672 | ||
f25d0cf3 BP |
6673 | case OFPACT_RESUBMIT: |
6674 | xlate_ofpact_resubmit(ctx, ofpact_get_RESUBMIT(a)); | |
38f2e360 BP |
6675 | break; |
6676 | ||
f25d0cf3 | 6677 | case OFPACT_SET_TUNNEL: |
bbafd73b EJ |
6678 | ctx->xin->flow.tunnel.tun_id = |
6679 | htonll(ofpact_get_SET_TUNNEL(a)->tun_id); | |
29901626 BP |
6680 | break; |
6681 | ||
f25d0cf3 BP |
6682 | case OFPACT_SET_QUEUE: |
6683 | xlate_set_queue_action(ctx, ofpact_get_SET_QUEUE(a)->queue_id); | |
abe529af BP |
6684 | break; |
6685 | ||
f25d0cf3 | 6686 | case OFPACT_POP_QUEUE: |
bbafd73b | 6687 | ctx->xin->flow.skb_priority = ctx->orig_skb_priority; |
38f2e360 BP |
6688 | break; |
6689 | ||
f25d0cf3 | 6690 | case OFPACT_REG_MOVE: |
bbafd73b | 6691 | nxm_execute_reg_move(ofpact_get_REG_MOVE(a), &ctx->xin->flow); |
38f2e360 BP |
6692 | break; |
6693 | ||
f25d0cf3 | 6694 | case OFPACT_REG_LOAD: |
bbafd73b | 6695 | nxm_execute_reg_load(ofpact_get_REG_LOAD(a), &ctx->xin->flow); |
38f2e360 BP |
6696 | break; |
6697 | ||
bd85dac1 | 6698 | case OFPACT_STACK_PUSH: |
bbafd73b | 6699 | nxm_execute_stack_push(ofpact_get_STACK_PUSH(a), &ctx->xin->flow, |
bd85dac1 AZ |
6700 | &ctx->stack); |
6701 | break; | |
6702 | ||
6703 | case OFPACT_STACK_POP: | |
bbafd73b | 6704 | nxm_execute_stack_pop(ofpact_get_STACK_POP(a), &ctx->xin->flow, |
bd85dac1 AZ |
6705 | &ctx->stack); |
6706 | break; | |
6707 | ||
b02475c5 SH |
6708 | case OFPACT_PUSH_MPLS: |
6709 | execute_mpls_push_action(ctx, ofpact_get_PUSH_MPLS(a)->ethertype); | |
6710 | break; | |
6711 | ||
6712 | case OFPACT_POP_MPLS: | |
6713 | execute_mpls_pop_action(ctx, ofpact_get_POP_MPLS(a)->ethertype); | |
6714 | break; | |
6715 | ||
0f3f3c3d | 6716 | case OFPACT_SET_MPLS_TTL: |
bbafd73b EJ |
6717 | if (execute_set_mpls_ttl_action(ctx, |
6718 | ofpact_get_SET_MPLS_TTL(a)->ttl)) { | |
0f3f3c3d SH |
6719 | goto out; |
6720 | } | |
6721 | break; | |
6722 | ||
b676167a SH |
6723 | case OFPACT_DEC_MPLS_TTL: |
6724 | if (execute_dec_mpls_ttl_action(ctx)) { | |
6725 | goto out; | |
6726 | } | |
6727 | break; | |
6728 | ||
f25d0cf3 | 6729 | case OFPACT_DEC_TTL: |
c2d967a5 | 6730 | if (compose_dec_ttl(ctx, ofpact_get_DEC_TTL(a))) { |
f25d0cf3 BP |
6731 | goto out; |
6732 | } | |
38f2e360 BP |
6733 | break; |
6734 | ||
f25d0cf3 BP |
6735 | case OFPACT_NOTE: |
6736 | /* Nothing to do. */ | |
abe529af BP |
6737 | break; |
6738 | ||
f25d0cf3 | 6739 | case OFPACT_MULTIPATH: |
bbafd73b | 6740 | multipath_execute(ofpact_get_MULTIPATH(a), &ctx->xin->flow); |
abe529af | 6741 | break; |
daff3353 | 6742 | |
f25d0cf3 | 6743 | case OFPACT_BUNDLE: |
a368bb53 | 6744 | ctx->ofproto->has_bundle_action = true; |
f25d0cf3 | 6745 | xlate_bundle_action(ctx, ofpact_get_BUNDLE(a)); |
a368bb53 | 6746 | break; |
f694937d | 6747 | |
f25d0cf3 BP |
6748 | case OFPACT_OUTPUT_REG: |
6749 | xlate_output_reg_action(ctx, ofpact_get_OUTPUT_REG(a)); | |
f694937d | 6750 | break; |
75a75043 | 6751 | |
f25d0cf3 | 6752 | case OFPACT_LEARN: |
bbafd73b EJ |
6753 | ctx->xout->has_learn = true; |
6754 | if (ctx->xin->may_learn) { | |
f25d0cf3 | 6755 | xlate_learn_action(ctx, ofpact_get_LEARN(a)); |
75a75043 BP |
6756 | } |
6757 | break; | |
848e8809 | 6758 | |
f25d0cf3 | 6759 | case OFPACT_EXIT: |
848e8809 EJ |
6760 | ctx->exit = true; |
6761 | break; | |
0e553d9c | 6762 | |
f25d0cf3 | 6763 | case OFPACT_FIN_TIMEOUT: |
bbafd73b | 6764 | ctx->xout->has_fin_timeout = true; |
f25d0cf3 | 6765 | xlate_fin_timeout(ctx, ofpact_get_FIN_TIMEOUT(a)); |
a7349929 | 6766 | break; |
8dd54666 | 6767 | |
b19e8793 | 6768 | case OFPACT_CLEAR_ACTIONS: |
5dca28b5 | 6769 | /* XXX |
b19e8793 IY |
6770 | * Nothing to do because writa-actions is not supported for now. |
6771 | * When writa-actions is supported, clear-actions also must | |
6772 | * be supported at the same time. | |
6773 | */ | |
6774 | break; | |
6775 | ||
4cceacb9 JS |
6776 | case OFPACT_WRITE_METADATA: |
6777 | metadata = ofpact_get_WRITE_METADATA(a); | |
bbafd73b EJ |
6778 | ctx->xin->flow.metadata &= ~metadata->mask; |
6779 | ctx->xin->flow.metadata |= metadata->metadata & metadata->mask; | |
4cceacb9 JS |
6780 | break; |
6781 | ||
8dd54666 | 6782 | case OFPACT_GOTO_TABLE: { |
55599423 | 6783 | /* It is assumed that goto-table is the last action. */ |
8dd54666 | 6784 | struct ofpact_goto_table *ogt = ofpact_get_GOTO_TABLE(a); |
55599423 JR |
6785 | struct rule_dpif *rule; |
6786 | ||
cb22974d | 6787 | ovs_assert(ctx->table_id < ogt->table_id); |
55599423 JR |
6788 | |
6789 | ctx->table_id = ogt->table_id; | |
6790 | ||
6791 | /* Look up a flow from the new table. */ | |
bbafd73b | 6792 | rule = rule_dpif_lookup__(ctx->ofproto, &ctx->xin->flow, ctx->table_id); |
55599423 JR |
6793 | |
6794 | tag_the_flow(ctx, rule); | |
6795 | ||
6796 | rule = ctx_rule_hooks(ctx, rule, true); | |
6797 | ||
6798 | if (rule) { | |
6799 | if (ctx->rule) { | |
6800 | ctx->rule->up.evictable = was_evictable; | |
6801 | } | |
6802 | ctx->rule = rule; | |
6803 | was_evictable = rule->up.evictable; | |
6804 | rule->up.evictable = false; | |
6805 | ||
6806 | /* Tail recursion removal. */ | |
6807 | ofpacts = rule->up.ofpacts; | |
6808 | ofpacts_len = rule->up.ofpacts_len; | |
6809 | goto do_xlate_actions_again; | |
6810 | } | |
8dd54666 IY |
6811 | break; |
6812 | } | |
29089a54 RL |
6813 | |
6814 | case OFPACT_SAMPLE: | |
6815 | xlate_sample_action(ctx, ofpact_get_SAMPLE(a)); | |
6816 | break; | |
abe529af BP |
6817 | } |
6818 | } | |
21f7563c | 6819 | |
f0fd1a17 | 6820 | out: |
254750ce BP |
6821 | if (ctx->rule) { |
6822 | ctx->rule->up.evictable = was_evictable; | |
6823 | } | |
abe529af BP |
6824 | } |
6825 | ||
6826 | static void | |
bbafd73b EJ |
6827 | xlate_in_init(struct xlate_in *xin, struct ofproto_dpif *ofproto, |
6828 | const struct flow *flow, | |
6829 | const struct initial_vals *initial_vals, | |
6830 | struct rule_dpif *rule, uint8_t tcp_flags, | |
6831 | const struct ofpbuf *packet) | |
6832 | { | |
6833 | xin->ofproto = ofproto; | |
6834 | xin->flow = *flow; | |
6835 | xin->packet = packet; | |
6836 | xin->may_learn = packet != NULL; | |
6837 | xin->rule = rule; | |
6838 | xin->ofpacts = NULL; | |
6839 | xin->ofpacts_len = 0; | |
6840 | xin->tcp_flags = tcp_flags; | |
6841 | xin->resubmit_hook = NULL; | |
6842 | xin->report_hook = NULL; | |
6843 | xin->resubmit_stats = NULL; | |
6844 | ||
6845 | if (initial_vals) { | |
6846 | xin->initial_vals = *initial_vals; | |
6847 | } else { | |
6848 | xin->initial_vals.vlan_tci = xin->flow.vlan_tci; | |
6849 | } | |
6850 | } | |
6851 | ||
6852 | static void | |
6853 | xlate_out_uninit(struct xlate_out *xout) | |
abe529af | 6854 | { |
bbafd73b EJ |
6855 | if (xout) { |
6856 | ofpbuf_uninit(&xout->odp_actions); | |
6857 | } | |
6858 | } | |
6859 | ||
6860 | /* Translates the 'ofpacts_len' bytes of "struct ofpacts" starting at 'ofpacts' | |
6861 | * into datapath actions in 'odp_actions', using 'ctx'. */ | |
6862 | static void | |
6863 | xlate_actions(struct xlate_in *xin, struct xlate_out *xout) | |
6864 | { | |
6865 | /* Normally false. Set to true if we ever hit MAX_RESUBMIT_RECURSION, so | |
6866 | * that in the future we always keep a copy of the original flow for | |
6867 | * tracing purposes. */ | |
6868 | static bool hit_resubmit_limit; | |
6869 | ||
6870 | enum slow_path_reason special; | |
6871 | const struct ofpact *ofpacts; | |
6872 | struct ofport_dpif *in_port; | |
6873 | struct flow orig_flow; | |
6874 | struct xlate_ctx ctx; | |
6875 | size_t ofpacts_len; | |
6876 | ||
6877 | COVERAGE_INC(ofproto_dpif_xlate); | |
6878 | ||
ef506a7c JG |
6879 | /* Flow initialization rules: |
6880 | * - 'base_flow' must match the kernel's view of the packet at the | |
6881 | * time that action processing starts. 'flow' represents any | |
6882 | * transformations we wish to make through actions. | |
6883 | * - By default 'base_flow' and 'flow' are the same since the input | |
6884 | * packet matches the output before any actions are applied. | |
6885 | * - When using VLAN splinters, 'base_flow''s VLAN is set to the value | |
6886 | * of the received packet as seen by the kernel. If we later output | |
6887 | * to another device without any modifications this will cause us to | |
6888 | * insert a new tag since the original one was stripped off by the | |
6889 | * VLAN device. | |
4110a57a JR |
6890 | * - Tunnel metadata as received is retained in 'flow'. This allows |
6891 | * tunnel metadata matching also in later tables. | |
6892 | * Since a kernel action for setting the tunnel metadata will only be | |
6893 | * generated with actual tunnel output, changing the tunnel metadata | |
6894 | * values in 'flow' (such as tun_id) will only have effect with a later | |
6895 | * tunnel output action. | |
ef506a7c JG |
6896 | * - Tunnel 'base_flow' is completely cleared since that is what the |
6897 | * kernel does. If we wish to maintain the original values an action | |
6898 | * needs to be generated. */ | |
6899 | ||
bbafd73b EJ |
6900 | ctx.xin = xin; |
6901 | ctx.xout = xout; | |
6902 | ||
6903 | ctx.ofproto = xin->ofproto; | |
6904 | ctx.rule = xin->rule; | |
6905 | ||
6906 | ctx.base_flow = ctx.xin->flow; | |
6907 | ctx.base_flow.vlan_tci = xin->initial_vals.vlan_tci; | |
6908 | memset(&ctx.base_flow.tunnel, 0, sizeof ctx.base_flow.tunnel); | |
6909 | ctx.orig_tunnel_ip_dst = ctx.xin->flow.tunnel.ip_dst; | |
6910 | ||
6911 | ctx.xout->tags = 0; | |
6912 | ctx.xout->slow = 0; | |
6913 | ctx.xout->has_learn = false; | |
6914 | ctx.xout->has_normal = false; | |
6915 | ctx.xout->has_fin_timeout = false; | |
6916 | ctx.xout->nf_output_iface = NF_OUT_DROP; | |
6917 | ctx.xout->mirrors = 0; | |
6918 | ||
6919 | ofpbuf_use_stub(&ctx.xout->odp_actions, ctx.xout->odp_actions_stub, | |
6920 | sizeof ctx.xout->odp_actions_stub); | |
6921 | ofpbuf_reserve(&ctx.xout->odp_actions, NL_A_U32_SIZE); | |
6922 | ||
6923 | ctx.recurse = 0; | |
6924 | ctx.max_resubmit_trigger = false; | |
6925 | ctx.orig_skb_priority = ctx.xin->flow.skb_priority; | |
6926 | ctx.table_id = 0; | |
6927 | ctx.exit = false; | |
6928 | ||
6929 | if (xin->ofpacts) { | |
6930 | ofpacts = xin->ofpacts; | |
6931 | ofpacts_len = xin->ofpacts_len; | |
6932 | } else if (xin->rule) { | |
6933 | ofpacts = xin->rule->up.ofpacts; | |
6934 | ofpacts_len = xin->rule->up.ofpacts_len; | |
6935 | } else { | |
6936 | NOT_REACHED(); | |
0f49659a | 6937 | } |
abe529af | 6938 | |
bbafd73b | 6939 | ofpbuf_use_stub(&ctx.stack, ctx.init_stack, sizeof ctx.init_stack); |
43d50bc8 | 6940 | |
bbafd73b | 6941 | if (ctx.ofproto->has_mirrors || hit_resubmit_limit) { |
ccb7c863 | 6942 | /* Do this conditionally because the copy is expensive enough that it |
9ba85077 | 6943 | * shows up in profiles. */ |
bbafd73b | 6944 | orig_flow = ctx.xin->flow; |
ccb7c863 BP |
6945 | } |
6946 | ||
bbafd73b EJ |
6947 | if (ctx.xin->flow.nw_frag & FLOW_NW_FRAG_ANY) { |
6948 | switch (ctx.ofproto->up.frag_handling) { | |
7257b535 BP |
6949 | case OFPC_FRAG_NORMAL: |
6950 | /* We must pretend that transport ports are unavailable. */ | |
bbafd73b EJ |
6951 | ctx.xin->flow.tp_src = ctx.base_flow.tp_src = htons(0); |
6952 | ctx.xin->flow.tp_dst = ctx.base_flow.tp_dst = htons(0); | |
7257b535 BP |
6953 | break; |
6954 | ||
6955 | case OFPC_FRAG_DROP: | |
050ac423 | 6956 | return; |
7257b535 BP |
6957 | |
6958 | case OFPC_FRAG_REASM: | |
6959 | NOT_REACHED(); | |
6960 | ||
6961 | case OFPC_FRAG_NX_MATCH: | |
6962 | /* Nothing to do. */ | |
6963 | break; | |
f0fd1a17 PS |
6964 | |
6965 | case OFPC_INVALID_TTL_TO_CONTROLLER: | |
6966 | NOT_REACHED(); | |
7257b535 BP |
6967 | } |
6968 | } | |
6969 | ||
bbafd73b EJ |
6970 | in_port = get_ofp_port(ctx.ofproto, ctx.xin->flow.in_port); |
6971 | special = process_special(ctx.ofproto, &ctx.xin->flow, in_port, | |
6972 | ctx.xin->packet); | |
6a7e895f | 6973 | if (special) { |
bbafd73b | 6974 | ctx.xout->slow = special; |
abe529af | 6975 | } else { |
6a6455e5 | 6976 | static struct vlog_rate_limit trace_rl = VLOG_RATE_LIMIT_INIT(1, 1); |
14f94f9a | 6977 | struct initial_vals initial_vals; |
94aa0d19 | 6978 | size_t sample_actions_len; |
ee382d89 | 6979 | uint32_t local_odp_port; |
6a6455e5 | 6980 | |
bbafd73b | 6981 | initial_vals.vlan_tci = ctx.base_flow.vlan_tci; |
14f94f9a | 6982 | |
bbafd73b EJ |
6983 | add_sflow_action(&ctx); |
6984 | add_ipfix_action(&ctx); | |
6985 | sample_actions_len = ctx.xout->odp_actions.size; | |
ffaef958 | 6986 | |
bbafd73b EJ |
6987 | if (tunnel_ecn_ok(&ctx) && (!in_port || may_receive(in_port, &ctx))) { |
6988 | do_xlate_actions(ofpacts, ofpacts_len, &ctx); | |
ffaef958 BP |
6989 | |
6990 | /* We've let OFPP_NORMAL and the learning action look at the | |
6991 | * packet, so drop it now if forwarding is disabled. */ | |
6992 | if (in_port && !stp_forward_in_state(in_port->stp_state)) { | |
bbafd73b | 6993 | ctx.xout->odp_actions.size = sample_actions_len; |
ffaef958 BP |
6994 | } |
6995 | } | |
abe529af | 6996 | |
bbafd73b | 6997 | if (ctx.max_resubmit_trigger && !ctx.xin->resubmit_hook) { |
43d50bc8 BP |
6998 | if (!hit_resubmit_limit) { |
6999 | /* We didn't record the original flow. Make sure we do from | |
7000 | * now on. */ | |
7001 | hit_resubmit_limit = true; | |
7002 | } else if (!VLOG_DROP_ERR(&trace_rl)) { | |
7003 | struct ds ds = DS_EMPTY_INITIALIZER; | |
7004 | ||
bbafd73b | 7005 | ofproto_trace(ctx.ofproto, &orig_flow, ctx.xin->packet, |
14f94f9a | 7006 | &initial_vals, &ds); |
43d50bc8 BP |
7007 | VLOG_ERR("Trace triggered by excessive resubmit " |
7008 | "recursion:\n%s", ds_cstr(&ds)); | |
7009 | ds_destroy(&ds); | |
7010 | } | |
6a6455e5 EJ |
7011 | } |
7012 | ||
bbafd73b EJ |
7013 | local_odp_port = ofp_port_to_odp_port(ctx.ofproto, OFPP_LOCAL); |
7014 | if (!connmgr_must_output_local(ctx.ofproto->up.connmgr, &ctx.xin->flow, | |
454a77e5 | 7015 | local_odp_port, |
bbafd73b EJ |
7016 | ctx.xout->odp_actions.data, |
7017 | ctx.xout->odp_actions.size)) { | |
7018 | compose_output_action(&ctx, OFPP_LOCAL); | |
b6848f13 | 7019 | } |
bbafd73b EJ |
7020 | if (ctx.ofproto->has_mirrors) { |
7021 | add_mirror_actions(&ctx, &orig_flow); | |
ccb7c863 | 7022 | } |
bbafd73b | 7023 | fix_sflow_action(&ctx); |
abe529af | 7024 | } |
bd85dac1 | 7025 | |
bbafd73b | 7026 | ofpbuf_uninit(&ctx.stack); |
050ac423 BP |
7027 | } |
7028 | ||
f25d0cf3 BP |
7029 | /* Translates the 'ofpacts_len' bytes of "struct ofpact"s starting at 'ofpacts' |
7030 | * into datapath actions, using 'ctx', and discards the datapath actions. */ | |
050ac423 | 7031 | static void |
bbafd73b | 7032 | xlate_actions_for_side_effects(struct xlate_in *xin) |
050ac423 | 7033 | { |
bbafd73b | 7034 | struct xlate_out xout; |
abe529af | 7035 | |
bbafd73b EJ |
7036 | xlate_actions(xin, &xout); |
7037 | xlate_out_uninit(&xout); | |
abe529af | 7038 | } |
479df176 BP |
7039 | |
7040 | static void | |
f03a84b9 | 7041 | xlate_report(struct xlate_ctx *ctx, const char *s) |
479df176 | 7042 | { |
bbafd73b EJ |
7043 | if (ctx->xin->report_hook) { |
7044 | ctx->xin->report_hook(ctx, s); | |
479df176 BP |
7045 | } |
7046 | } | |
abe529af BP |
7047 | \f |
7048 | /* OFPP_NORMAL implementation. */ | |
7049 | ||
abe529af BP |
7050 | static struct ofport_dpif *ofbundle_get_a_port(const struct ofbundle *); |
7051 | ||
ecac4ebf BP |
7052 | /* Given 'vid', the VID obtained from the 802.1Q header that was received as |
7053 | * part of a packet (specify 0 if there was no 802.1Q header), and 'in_bundle', | |
7054 | * the bundle on which the packet was received, returns the VLAN to which the | |
7055 | * packet belongs. | |
7056 | * | |
7057 | * Both 'vid' and the return value are in the range 0...4095. */ | |
7058 | static uint16_t | |
7059 | input_vid_to_vlan(const struct ofbundle *in_bundle, uint16_t vid) | |
7060 | { | |
7061 | switch (in_bundle->vlan_mode) { | |
7062 | case PORT_VLAN_ACCESS: | |
7063 | return in_bundle->vlan; | |
7064 | break; | |
7065 | ||
7066 | case PORT_VLAN_TRUNK: | |
7067 | return vid; | |
7068 | ||
7069 | case PORT_VLAN_NATIVE_UNTAGGED: | |
7070 | case PORT_VLAN_NATIVE_TAGGED: | |
7071 | return vid ? vid : in_bundle->vlan; | |
7072 | ||
7073 | default: | |
7074 | NOT_REACHED(); | |
7075 | } | |
7076 | } | |
7077 | ||
5da5ec37 BP |
7078 | /* Checks whether a packet with the given 'vid' may ingress on 'in_bundle'. |
7079 | * If so, returns true. Otherwise, returns false and, if 'warn' is true, logs | |
7080 | * a warning. | |
7081 | * | |
7082 | * 'vid' should be the VID obtained from the 802.1Q header that was received as | |
7083 | * part of a packet (specify 0 if there was no 802.1Q header), in the range | |
7084 | * 0...4095. */ | |
7085 | static bool | |
7086 | input_vid_is_valid(uint16_t vid, struct ofbundle *in_bundle, bool warn) | |
7087 | { | |
33158a18 JP |
7088 | /* Allow any VID on the OFPP_NONE port. */ |
7089 | if (in_bundle == &ofpp_none_bundle) { | |
7090 | return true; | |
7091 | } | |
7092 | ||
5da5ec37 BP |
7093 | switch (in_bundle->vlan_mode) { |
7094 | case PORT_VLAN_ACCESS: | |
7095 | if (vid) { | |
7096 | if (warn) { | |
7097 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
7098 | VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %"PRIu16" tagged " | |
7099 | "packet received on port %s configured as VLAN " | |
7100 | "%"PRIu16" access port", | |
7101 | in_bundle->ofproto->up.name, vid, | |
7102 | in_bundle->name, in_bundle->vlan); | |
7103 | } | |
7104 | return false; | |
7105 | } | |
7106 | return true; | |
7107 | ||
7108 | case PORT_VLAN_NATIVE_UNTAGGED: | |
7109 | case PORT_VLAN_NATIVE_TAGGED: | |
7110 | if (!vid) { | |
7111 | /* Port must always carry its native VLAN. */ | |
7112 | return true; | |
7113 | } | |
7114 | /* Fall through. */ | |
7115 | case PORT_VLAN_TRUNK: | |
7116 | if (!ofbundle_includes_vlan(in_bundle, vid)) { | |
7117 | if (warn) { | |
7118 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
7119 | VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %"PRIu16" packet " | |
7120 | "received on port %s not configured for trunking " | |
7121 | "VLAN %"PRIu16, | |
7122 | in_bundle->ofproto->up.name, vid, | |
7123 | in_bundle->name, vid); | |
7124 | } | |
7125 | return false; | |
7126 | } | |
7127 | return true; | |
7128 | ||
7129 | default: | |
7130 | NOT_REACHED(); | |
7131 | } | |
7132 | ||
7133 | } | |
7134 | ||
ecac4ebf BP |
7135 | /* Given 'vlan', the VLAN that a packet belongs to, and |
7136 | * 'out_bundle', a bundle on which the packet is to be output, returns the VID | |
7137 | * that should be included in the 802.1Q header. (If the return value is 0, | |
7138 | * then the 802.1Q header should only be included in the packet if there is a | |
7139 | * nonzero PCP.) | |
7140 | * | |
7141 | * Both 'vlan' and the return value are in the range 0...4095. */ | |
7142 | static uint16_t | |
7143 | output_vlan_to_vid(const struct ofbundle *out_bundle, uint16_t vlan) | |
7144 | { | |
7145 | switch (out_bundle->vlan_mode) { | |
7146 | case PORT_VLAN_ACCESS: | |
7147 | return 0; | |
7148 | ||
7149 | case PORT_VLAN_TRUNK: | |
7150 | case PORT_VLAN_NATIVE_TAGGED: | |
7151 | return vlan; | |
7152 | ||
7153 | case PORT_VLAN_NATIVE_UNTAGGED: | |
7154 | return vlan == out_bundle->vlan ? 0 : vlan; | |
7155 | ||
7156 | default: | |
7157 | NOT_REACHED(); | |
7158 | } | |
7159 | } | |
7160 | ||
395e68ce | 7161 | static void |
f03a84b9 | 7162 | output_normal(struct xlate_ctx *ctx, const struct ofbundle *out_bundle, |
395e68ce | 7163 | uint16_t vlan) |
abe529af | 7164 | { |
395e68ce BP |
7165 | struct ofport_dpif *port; |
7166 | uint16_t vid; | |
81b1afb1 | 7167 | ovs_be16 tci, old_tci; |
ecac4ebf | 7168 | |
395e68ce BP |
7169 | vid = output_vlan_to_vid(out_bundle, vlan); |
7170 | if (!out_bundle->bond) { | |
7171 | port = ofbundle_get_a_port(out_bundle); | |
7172 | } else { | |
bbafd73b EJ |
7173 | port = bond_choose_output_slave(out_bundle->bond, &ctx->xin->flow, |
7174 | vid, &ctx->xout->tags); | |
395e68ce BP |
7175 | if (!port) { |
7176 | /* No slaves enabled, so drop packet. */ | |
7177 | return; | |
7178 | } | |
7179 | } | |
abe529af | 7180 | |
bbafd73b | 7181 | old_tci = ctx->xin->flow.vlan_tci; |
5e9ceccd BP |
7182 | tci = htons(vid); |
7183 | if (tci || out_bundle->use_priority_tags) { | |
bbafd73b | 7184 | tci |= ctx->xin->flow.vlan_tci & htons(VLAN_PCP_MASK); |
5e9ceccd BP |
7185 | if (tci) { |
7186 | tci |= htons(VLAN_CFI); | |
7187 | } | |
395e68ce | 7188 | } |
bbafd73b | 7189 | ctx->xin->flow.vlan_tci = tci; |
395e68ce | 7190 | |
5e48dc2b | 7191 | compose_output_action(ctx, port->up.ofp_port); |
bbafd73b | 7192 | ctx->xin->flow.vlan_tci = old_tci; |
abe529af BP |
7193 | } |
7194 | ||
7195 | static int | |
7196 | mirror_mask_ffs(mirror_mask_t mask) | |
7197 | { | |
7198 | BUILD_ASSERT_DECL(sizeof(unsigned int) >= sizeof(mask)); | |
7199 | return ffs(mask); | |
7200 | } | |
7201 | ||
abe529af BP |
7202 | static bool |
7203 | ofbundle_trunks_vlan(const struct ofbundle *bundle, uint16_t vlan) | |
7204 | { | |
ecac4ebf | 7205 | return (bundle->vlan_mode != PORT_VLAN_ACCESS |
fc3d7408 | 7206 | && (!bundle->trunks || bitmap_is_set(bundle->trunks, vlan))); |
abe529af BP |
7207 | } |
7208 | ||
7209 | static bool | |
7210 | ofbundle_includes_vlan(const struct ofbundle *bundle, uint16_t vlan) | |
7211 | { | |
7212 | return vlan == bundle->vlan || ofbundle_trunks_vlan(bundle, vlan); | |
7213 | } | |
7214 | ||
7215 | /* Returns an arbitrary interface within 'bundle'. */ | |
7216 | static struct ofport_dpif * | |
7217 | ofbundle_get_a_port(const struct ofbundle *bundle) | |
7218 | { | |
7219 | return CONTAINER_OF(list_front(&bundle->ports), | |
7220 | struct ofport_dpif, bundle_node); | |
7221 | } | |
7222 | ||
abe529af BP |
7223 | static bool |
7224 | vlan_is_mirrored(const struct ofmirror *m, int vlan) | |
7225 | { | |
fc3d7408 | 7226 | return !m->vlans || bitmap_is_set(m->vlans, vlan); |
abe529af BP |
7227 | } |
7228 | ||
7229 | static void | |
f03a84b9 | 7230 | add_mirror_actions(struct xlate_ctx *ctx, const struct flow *orig_flow) |
abe529af BP |
7231 | { |
7232 | struct ofproto_dpif *ofproto = ctx->ofproto; | |
7233 | mirror_mask_t mirrors; | |
c06bba01 JP |
7234 | struct ofbundle *in_bundle; |
7235 | uint16_t vlan; | |
7236 | uint16_t vid; | |
7237 | const struct nlattr *a; | |
7238 | size_t left; | |
7239 | ||
3581c12c | 7240 | in_bundle = lookup_input_bundle(ctx->ofproto, orig_flow->in_port, |
bbafd73b | 7241 | ctx->xin->packet != NULL, NULL); |
3581c12c | 7242 | if (!in_bundle) { |
c06bba01 JP |
7243 | return; |
7244 | } | |
c06bba01 JP |
7245 | mirrors = in_bundle->src_mirrors; |
7246 | ||
7247 | /* Drop frames on bundles reserved for mirroring. */ | |
7248 | if (in_bundle->mirror_out) { | |
bbafd73b | 7249 | if (ctx->xin->packet != NULL) { |
c06bba01 JP |
7250 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
7251 | VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port " | |
7252 | "%s, which is reserved exclusively for mirroring", | |
7253 | ctx->ofproto->up.name, in_bundle->name); | |
7254 | } | |
7255 | return; | |
7256 | } | |
7257 | ||
7258 | /* Check VLAN. */ | |
7259 | vid = vlan_tci_to_vid(orig_flow->vlan_tci); | |
bbafd73b | 7260 | if (!input_vid_is_valid(vid, in_bundle, ctx->xin->packet != NULL)) { |
c06bba01 JP |
7261 | return; |
7262 | } | |
7263 | vlan = input_vid_to_vlan(in_bundle, vid); | |
7264 | ||
7265 | /* Look at the output ports to check for destination selections. */ | |
7266 | ||
bbafd73b EJ |
7267 | NL_ATTR_FOR_EACH (a, left, ctx->xout->odp_actions.data, |
7268 | ctx->xout->odp_actions.size) { | |
c06bba01 JP |
7269 | enum ovs_action_attr type = nl_attr_type(a); |
7270 | struct ofport_dpif *ofport; | |
7271 | ||
7272 | if (type != OVS_ACTION_ATTR_OUTPUT) { | |
7273 | continue; | |
7274 | } | |
7275 | ||
7276 | ofport = get_odp_port(ofproto, nl_attr_get_u32(a)); | |
521472bc BP |
7277 | if (ofport && ofport->bundle) { |
7278 | mirrors |= ofport->bundle->dst_mirrors; | |
7279 | } | |
c06bba01 | 7280 | } |
abe529af BP |
7281 | |
7282 | if (!mirrors) { | |
7283 | return; | |
7284 | } | |
7285 | ||
c06bba01 | 7286 | /* Restore the original packet before adding the mirror actions. */ |
bbafd73b | 7287 | ctx->xin->flow = *orig_flow; |
c06bba01 | 7288 | |
9ba15e2a BP |
7289 | while (mirrors) { |
7290 | struct ofmirror *m; | |
9ba15e2a BP |
7291 | |
7292 | m = ofproto->mirrors[mirror_mask_ffs(mirrors) - 1]; | |
7293 | ||
7294 | if (!vlan_is_mirrored(m, vlan)) { | |
8472a3ce | 7295 | mirrors = zero_rightmost_1bit(mirrors); |
9ba15e2a BP |
7296 | continue; |
7297 | } | |
7298 | ||
7299 | mirrors &= ~m->dup_mirrors; | |
bbafd73b | 7300 | ctx->xout->mirrors |= m->dup_mirrors; |
9ba15e2a | 7301 | if (m->out) { |
395e68ce | 7302 | output_normal(ctx, m->out, vlan); |
614ec445 EJ |
7303 | } else if (vlan != m->out_vlan |
7304 | && !eth_addr_is_reserved(orig_flow->dl_dst)) { | |
9ba15e2a BP |
7305 | struct ofbundle *bundle; |
7306 | ||
7307 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
7308 | if (ofbundle_includes_vlan(bundle, m->out_vlan) | |
395e68ce BP |
7309 | && !bundle->mirror_out) { |
7310 | output_normal(ctx, bundle, m->out_vlan); | |
abe529af BP |
7311 | } |
7312 | } | |
7313 | } | |
abe529af BP |
7314 | } |
7315 | } | |
7316 | ||
9d24de3b JP |
7317 | static void |
7318 | update_mirror_stats(struct ofproto_dpif *ofproto, mirror_mask_t mirrors, | |
7319 | uint64_t packets, uint64_t bytes) | |
7320 | { | |
7321 | if (!mirrors) { | |
7322 | return; | |
7323 | } | |
7324 | ||
8472a3ce | 7325 | for (; mirrors; mirrors = zero_rightmost_1bit(mirrors)) { |
9d24de3b JP |
7326 | struct ofmirror *m; |
7327 | ||
7328 | m = ofproto->mirrors[mirror_mask_ffs(mirrors) - 1]; | |
7329 | ||
7330 | if (!m) { | |
7331 | /* In normal circumstances 'm' will not be NULL. However, | |
7332 | * if mirrors are reconfigured, we can temporarily get out | |
7333 | * of sync in facet_revalidate(). We could "correct" the | |
7334 | * mirror list before reaching here, but doing that would | |
7335 | * not properly account the traffic stats we've currently | |
7336 | * accumulated for previous mirror configuration. */ | |
7337 | continue; | |
7338 | } | |
7339 | ||
7340 | m->packet_count += packets; | |
7341 | m->byte_count += bytes; | |
7342 | } | |
7343 | } | |
7344 | ||
abe529af BP |
7345 | /* A VM broadcasts a gratuitous ARP to indicate that it has resumed after |
7346 | * migration. Older Citrix-patched Linux DomU used gratuitous ARP replies to | |
7347 | * indicate this; newer upstream kernels use gratuitous ARP requests. */ | |
7348 | static bool | |
7349 | is_gratuitous_arp(const struct flow *flow) | |
7350 | { | |
7351 | return (flow->dl_type == htons(ETH_TYPE_ARP) | |
7352 | && eth_addr_is_broadcast(flow->dl_dst) | |
7353 | && (flow->nw_proto == ARP_OP_REPLY | |
7354 | || (flow->nw_proto == ARP_OP_REQUEST | |
7355 | && flow->nw_src == flow->nw_dst))); | |
7356 | } | |
7357 | ||
7358 | static void | |
7359 | update_learning_table(struct ofproto_dpif *ofproto, | |
7360 | const struct flow *flow, int vlan, | |
7361 | struct ofbundle *in_bundle) | |
7362 | { | |
7363 | struct mac_entry *mac; | |
7364 | ||
33158a18 JP |
7365 | /* Don't learn the OFPP_NONE port. */ |
7366 | if (in_bundle == &ofpp_none_bundle) { | |
7367 | return; | |
7368 | } | |
7369 | ||
abe529af BP |
7370 | if (!mac_learning_may_learn(ofproto->ml, flow->dl_src, vlan)) { |
7371 | return; | |
7372 | } | |
7373 | ||
7374 | mac = mac_learning_insert(ofproto->ml, flow->dl_src, vlan); | |
7375 | if (is_gratuitous_arp(flow)) { | |
7376 | /* We don't want to learn from gratuitous ARP packets that are | |
7377 | * reflected back over bond slaves so we lock the learning table. */ | |
7378 | if (!in_bundle->bond) { | |
7379 | mac_entry_set_grat_arp_lock(mac); | |
7380 | } else if (mac_entry_is_grat_arp_locked(mac)) { | |
7381 | return; | |
7382 | } | |
7383 | } | |
7384 | ||
7385 | if (mac_entry_is_new(mac) || mac->port.p != in_bundle) { | |
7386 | /* The log messages here could actually be useful in debugging, | |
7387 | * so keep the rate limit relatively high. */ | |
7388 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(30, 300); | |
7389 | VLOG_DBG_RL(&rl, "bridge %s: learned that "ETH_ADDR_FMT" is " | |
7390 | "on port %s in VLAN %d", | |
7391 | ofproto->up.name, ETH_ADDR_ARGS(flow->dl_src), | |
7392 | in_bundle->name, vlan); | |
7393 | ||
7394 | mac->port.p = in_bundle; | |
2cc3c58e | 7395 | tag_set_add(&ofproto->backer->revalidate_set, |
abe529af BP |
7396 | mac_learning_changed(ofproto->ml, mac)); |
7397 | } | |
7398 | } | |
7399 | ||
3581c12c | 7400 | static struct ofbundle * |
4acbc98d SH |
7401 | lookup_input_bundle(const struct ofproto_dpif *ofproto, uint16_t in_port, |
7402 | bool warn, struct ofport_dpif **in_ofportp) | |
395e68ce BP |
7403 | { |
7404 | struct ofport_dpif *ofport; | |
7405 | ||
7406 | /* Find the port and bundle for the received packet. */ | |
7407 | ofport = get_ofp_port(ofproto, in_port); | |
70c2fd56 BP |
7408 | if (in_ofportp) { |
7409 | *in_ofportp = ofport; | |
7410 | } | |
395e68ce | 7411 | if (ofport && ofport->bundle) { |
3581c12c | 7412 | return ofport->bundle; |
395e68ce BP |
7413 | } |
7414 | ||
70c2fd56 BP |
7415 | /* Special-case OFPP_NONE, which a controller may use as the ingress |
7416 | * port for traffic that it is sourcing. */ | |
7417 | if (in_port == OFPP_NONE) { | |
7418 | return &ofpp_none_bundle; | |
7419 | } | |
7420 | ||
395e68ce BP |
7421 | /* Odd. A few possible reasons here: |
7422 | * | |
7423 | * - We deleted a port but there are still a few packets queued up | |
7424 | * from it. | |
7425 | * | |
7426 | * - Someone externally added a port (e.g. "ovs-dpctl add-if") that | |
7427 | * we don't know about. | |
7428 | * | |
7429 | * - The ofproto client didn't configure the port as part of a bundle. | |
6b803ddc EJ |
7430 | * This is particularly likely to happen if a packet was received on the |
7431 | * port after it was created, but before the client had a chance to | |
7432 | * configure its bundle. | |
395e68ce BP |
7433 | */ |
7434 | if (warn) { | |
7435 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
7436 | ||
7437 | VLOG_WARN_RL(&rl, "bridge %s: received packet on unknown " | |
7438 | "port %"PRIu16, ofproto->up.name, in_port); | |
7439 | } | |
7440 | return NULL; | |
7441 | } | |
7442 | ||
5da5ec37 | 7443 | /* Determines whether packets in 'flow' within 'ofproto' should be forwarded or |
abe529af BP |
7444 | * dropped. Returns true if they may be forwarded, false if they should be |
7445 | * dropped. | |
7446 | * | |
395e68ce BP |
7447 | * 'in_port' must be the ofport_dpif that corresponds to flow->in_port. |
7448 | * 'in_port' must be part of a bundle (e.g. in_port->bundle must be nonnull). | |
abe529af | 7449 | * |
395e68ce BP |
7450 | * 'vlan' must be the VLAN that corresponds to flow->vlan_tci on 'in_port', as |
7451 | * returned by input_vid_to_vlan(). It must be a valid VLAN for 'in_port', as | |
7452 | * checked by input_vid_is_valid(). | |
abe529af BP |
7453 | * |
7454 | * May also add tags to '*tags', although the current implementation only does | |
7455 | * so in one special case. | |
7456 | */ | |
7457 | static bool | |
f03a84b9 | 7458 | is_admissible(struct xlate_ctx *ctx, struct ofport_dpif *in_port, |
479df176 | 7459 | uint16_t vlan) |
abe529af | 7460 | { |
479df176 | 7461 | struct ofproto_dpif *ofproto = ctx->ofproto; |
bbafd73b | 7462 | struct flow *flow = &ctx->xin->flow; |
395e68ce | 7463 | struct ofbundle *in_bundle = in_port->bundle; |
abe529af | 7464 | |
395e68ce BP |
7465 | /* Drop frames for reserved multicast addresses |
7466 | * only if forward_bpdu option is absent. */ | |
614ec445 | 7467 | if (!ofproto->up.forward_bpdu && eth_addr_is_reserved(flow->dl_dst)) { |
479df176 | 7468 | xlate_report(ctx, "packet has reserved destination MAC, dropping"); |
abe529af BP |
7469 | return false; |
7470 | } | |
7471 | ||
abe529af BP |
7472 | if (in_bundle->bond) { |
7473 | struct mac_entry *mac; | |
7474 | ||
7475 | switch (bond_check_admissibility(in_bundle->bond, in_port, | |
bbafd73b | 7476 | flow->dl_dst, &ctx->xout->tags)) { |
abe529af BP |
7477 | case BV_ACCEPT: |
7478 | break; | |
7479 | ||
7480 | case BV_DROP: | |
479df176 | 7481 | xlate_report(ctx, "bonding refused admissibility, dropping"); |
abe529af BP |
7482 | return false; |
7483 | ||
7484 | case BV_DROP_IF_MOVED: | |
7485 | mac = mac_learning_lookup(ofproto->ml, flow->dl_src, vlan, NULL); | |
7486 | if (mac && mac->port.p != in_bundle && | |
7487 | (!is_gratuitous_arp(flow) | |
7488 | || mac_entry_is_grat_arp_locked(mac))) { | |
479df176 BP |
7489 | xlate_report(ctx, "SLB bond thinks this packet looped back, " |
7490 | "dropping"); | |
abe529af BP |
7491 | return false; |
7492 | } | |
7493 | break; | |
7494 | } | |
7495 | } | |
7496 | ||
7497 | return true; | |
7498 | } | |
7499 | ||
4cd78906 | 7500 | static void |
f03a84b9 | 7501 | xlate_normal(struct xlate_ctx *ctx) |
abe529af | 7502 | { |
395e68ce | 7503 | struct ofport_dpif *in_port; |
abe529af | 7504 | struct ofbundle *in_bundle; |
abe529af | 7505 | struct mac_entry *mac; |
395e68ce BP |
7506 | uint16_t vlan; |
7507 | uint16_t vid; | |
abe529af | 7508 | |
bbafd73b | 7509 | ctx->xout->has_normal = true; |
75a75043 | 7510 | |
bbafd73b EJ |
7511 | in_bundle = lookup_input_bundle(ctx->ofproto, ctx->xin->flow.in_port, |
7512 | ctx->xin->packet != NULL, &in_port); | |
3581c12c | 7513 | if (!in_bundle) { |
479df176 | 7514 | xlate_report(ctx, "no input bundle, dropping"); |
395e68ce BP |
7515 | return; |
7516 | } | |
3581c12c | 7517 | |
395e68ce | 7518 | /* Drop malformed frames. */ |
bbafd73b EJ |
7519 | if (ctx->xin->flow.dl_type == htons(ETH_TYPE_VLAN) && |
7520 | !(ctx->xin->flow.vlan_tci & htons(VLAN_CFI))) { | |
7521 | if (ctx->xin->packet != NULL) { | |
395e68ce BP |
7522 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
7523 | VLOG_WARN_RL(&rl, "bridge %s: dropping packet with partial " | |
7524 | "VLAN tag received on port %s", | |
7525 | ctx->ofproto->up.name, in_bundle->name); | |
7526 | } | |
479df176 | 7527 | xlate_report(ctx, "partial VLAN tag, dropping"); |
395e68ce BP |
7528 | return; |
7529 | } | |
7530 | ||
7531 | /* Drop frames on bundles reserved for mirroring. */ | |
7532 | if (in_bundle->mirror_out) { | |
bbafd73b | 7533 | if (ctx->xin->packet != NULL) { |
395e68ce BP |
7534 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
7535 | VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port " | |
7536 | "%s, which is reserved exclusively for mirroring", | |
7537 | ctx->ofproto->up.name, in_bundle->name); | |
7538 | } | |
479df176 | 7539 | xlate_report(ctx, "input port is mirror output port, dropping"); |
395e68ce BP |
7540 | return; |
7541 | } | |
7542 | ||
7543 | /* Check VLAN. */ | |
bbafd73b EJ |
7544 | vid = vlan_tci_to_vid(ctx->xin->flow.vlan_tci); |
7545 | if (!input_vid_is_valid(vid, in_bundle, ctx->xin->packet != NULL)) { | |
479df176 | 7546 | xlate_report(ctx, "disallowed VLAN VID for this input port, dropping"); |
395e68ce BP |
7547 | return; |
7548 | } | |
7549 | vlan = input_vid_to_vlan(in_bundle, vid); | |
7550 | ||
7551 | /* Check other admissibility requirements. */ | |
479df176 | 7552 | if (in_port && !is_admissible(ctx, in_port, vlan)) { |
395e68ce | 7553 | return; |
abe529af BP |
7554 | } |
7555 | ||
75a75043 | 7556 | /* Learn source MAC. */ |
bbafd73b EJ |
7557 | if (ctx->xin->may_learn) { |
7558 | update_learning_table(ctx->ofproto, &ctx->xin->flow, vlan, in_bundle); | |
abe529af BP |
7559 | } |
7560 | ||
7561 | /* Determine output bundle. */ | |
bbafd73b EJ |
7562 | mac = mac_learning_lookup(ctx->ofproto->ml, ctx->xin->flow.dl_dst, vlan, |
7563 | &ctx->xout->tags); | |
abe529af | 7564 | if (mac) { |
c06bba01 | 7565 | if (mac->port.p != in_bundle) { |
479df176 | 7566 | xlate_report(ctx, "forwarding to learned port"); |
c06bba01 | 7567 | output_normal(ctx, mac->port.p, vlan); |
479df176 BP |
7568 | } else { |
7569 | xlate_report(ctx, "learned port is input port, dropping"); | |
c06bba01 | 7570 | } |
abe529af | 7571 | } else { |
c06bba01 | 7572 | struct ofbundle *bundle; |
abe529af | 7573 | |
479df176 | 7574 | xlate_report(ctx, "no learned MAC for destination, flooding"); |
c06bba01 JP |
7575 | HMAP_FOR_EACH (bundle, hmap_node, &ctx->ofproto->bundles) { |
7576 | if (bundle != in_bundle | |
7577 | && ofbundle_includes_vlan(bundle, vlan) | |
7578 | && bundle->floodable | |
7579 | && !bundle->mirror_out) { | |
7580 | output_normal(ctx, bundle, vlan); | |
7581 | } | |
7582 | } | |
bbafd73b | 7583 | ctx->xout->nf_output_iface = NF_OUT_FLOOD; |
abe529af | 7584 | } |
abe529af BP |
7585 | } |
7586 | \f | |
54a9cbc9 BP |
7587 | /* Optimized flow revalidation. |
7588 | * | |
7589 | * It's a difficult problem, in general, to tell which facets need to have | |
7590 | * their actions recalculated whenever the OpenFlow flow table changes. We | |
7591 | * don't try to solve that general problem: for most kinds of OpenFlow flow | |
7592 | * table changes, we recalculate the actions for every facet. This is | |
7593 | * relatively expensive, but it's good enough if the OpenFlow flow table | |
7594 | * doesn't change very often. | |
7595 | * | |
7596 | * However, we can expect one particular kind of OpenFlow flow table change to | |
7597 | * happen frequently: changes caused by MAC learning. To avoid wasting a lot | |
7598 | * of CPU on revalidating every facet whenever MAC learning modifies the flow | |
7599 | * table, we add a special case that applies to flow tables in which every rule | |
7600 | * has the same form (that is, the same wildcards), except that the table is | |
7601 | * also allowed to have a single "catch-all" flow that matches all packets. We | |
7602 | * optimize this case by tagging all of the facets that resubmit into the table | |
7603 | * and invalidating the same tag whenever a flow changes in that table. The | |
7604 | * end result is that we revalidate just the facets that need it (and sometimes | |
7605 | * a few more, but not all of the facets or even all of the facets that | |
7606 | * resubmit to the table modified by MAC learning). */ | |
7607 | ||
5cb7a798 | 7608 | /* Calculates the tag to use for 'flow' and mask 'mask' when it is inserted |
54a9cbc9 | 7609 | * into an OpenFlow table with the given 'basis'. */ |
822d9414 | 7610 | static tag_type |
5cb7a798 | 7611 | rule_calculate_tag(const struct flow *flow, const struct minimask *mask, |
54a9cbc9 BP |
7612 | uint32_t secret) |
7613 | { | |
5cb7a798 | 7614 | if (minimask_is_catchall(mask)) { |
54a9cbc9 BP |
7615 | return 0; |
7616 | } else { | |
5cb7a798 BP |
7617 | uint32_t hash = flow_hash_in_minimask(flow, mask, secret); |
7618 | return tag_create_deterministic(hash); | |
54a9cbc9 BP |
7619 | } |
7620 | } | |
7621 | ||
7622 | /* Following a change to OpenFlow table 'table_id' in 'ofproto', update the | |
7623 | * taggability of that table. | |
7624 | * | |
7625 | * This function must be called after *each* change to a flow table. If you | |
7626 | * skip calling it on some changes then the pointer comparisons at the end can | |
7627 | * be invalid if you get unlucky. For example, if a flow removal causes a | |
7628 | * cls_table to be destroyed and then a flow insertion causes a cls_table with | |
7629 | * different wildcards to be created with the same address, then this function | |
7630 | * will incorrectly skip revalidation. */ | |
7631 | static void | |
7632 | table_update_taggable(struct ofproto_dpif *ofproto, uint8_t table_id) | |
7633 | { | |
7634 | struct table_dpif *table = &ofproto->tables[table_id]; | |
d0918789 | 7635 | const struct oftable *oftable = &ofproto->up.tables[table_id]; |
54a9cbc9 BP |
7636 | struct cls_table *catchall, *other; |
7637 | struct cls_table *t; | |
7638 | ||
7639 | catchall = other = NULL; | |
7640 | ||
d0918789 | 7641 | switch (hmap_count(&oftable->cls.tables)) { |
54a9cbc9 BP |
7642 | case 0: |
7643 | /* We could tag this OpenFlow table but it would make the logic a | |
7644 | * little harder and it's a corner case that doesn't seem worth it | |
7645 | * yet. */ | |
7646 | break; | |
7647 | ||
7648 | case 1: | |
7649 | case 2: | |
d0918789 | 7650 | HMAP_FOR_EACH (t, hmap_node, &oftable->cls.tables) { |
54a9cbc9 BP |
7651 | if (cls_table_is_catchall(t)) { |
7652 | catchall = t; | |
7653 | } else if (!other) { | |
7654 | other = t; | |
7655 | } else { | |
7656 | /* Indicate that we can't tag this by setting both tables to | |
7657 | * NULL. (We know that 'catchall' is already NULL.) */ | |
7658 | other = NULL; | |
7659 | } | |
7660 | } | |
7661 | break; | |
7662 | ||
7663 | default: | |
7664 | /* Can't tag this table. */ | |
7665 | break; | |
7666 | } | |
7667 | ||
7668 | if (table->catchall_table != catchall || table->other_table != other) { | |
7669 | table->catchall_table = catchall; | |
7670 | table->other_table = other; | |
2cc3c58e | 7671 | ofproto->backer->need_revalidate = REV_FLOW_TABLE; |
54a9cbc9 BP |
7672 | } |
7673 | } | |
7674 | ||
7675 | /* Given 'rule' that has changed in some way (either it is a rule being | |
7676 | * inserted, a rule being deleted, or a rule whose actions are being | |
7677 | * modified), marks facets for revalidation to ensure that packets will be | |
7678 | * forwarded correctly according to the new state of the flow table. | |
7679 | * | |
7680 | * This function must be called after *each* change to a flow table. See | |
7681 | * the comment on table_update_taggable() for more information. */ | |
7682 | static void | |
7683 | rule_invalidate(const struct rule_dpif *rule) | |
7684 | { | |
7685 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
7686 | ||
7687 | table_update_taggable(ofproto, rule->up.table_id); | |
7688 | ||
2cc3c58e | 7689 | if (!ofproto->backer->need_revalidate) { |
54a9cbc9 BP |
7690 | struct table_dpif *table = &ofproto->tables[rule->up.table_id]; |
7691 | ||
7692 | if (table->other_table && rule->tag) { | |
2cc3c58e | 7693 | tag_set_add(&ofproto->backer->revalidate_set, rule->tag); |
54a9cbc9 | 7694 | } else { |
2cc3c58e | 7695 | ofproto->backer->need_revalidate = REV_FLOW_TABLE; |
54a9cbc9 BP |
7696 | } |
7697 | } | |
7698 | } | |
7699 | \f | |
abe529af | 7700 | static bool |
7257b535 BP |
7701 | set_frag_handling(struct ofproto *ofproto_, |
7702 | enum ofp_config_flags frag_handling) | |
abe529af BP |
7703 | { |
7704 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
7257b535 | 7705 | if (frag_handling != OFPC_FRAG_REASM) { |
2cc3c58e | 7706 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
7257b535 BP |
7707 | return true; |
7708 | } else { | |
7709 | return false; | |
7710 | } | |
abe529af BP |
7711 | } |
7712 | ||
90bf1e07 | 7713 | static enum ofperr |
abe529af BP |
7714 | packet_out(struct ofproto *ofproto_, struct ofpbuf *packet, |
7715 | const struct flow *flow, | |
f25d0cf3 | 7716 | const struct ofpact *ofpacts, size_t ofpacts_len) |
abe529af BP |
7717 | { |
7718 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
14f94f9a | 7719 | struct initial_vals initial_vals; |
548de4dd BP |
7720 | struct odputil_keybuf keybuf; |
7721 | struct dpif_flow_stats stats; | |
bbafd73b EJ |
7722 | struct xlate_out xout; |
7723 | struct xlate_in xin; | |
548de4dd | 7724 | struct ofpbuf key; |
112bc5f4 | 7725 | |
80e5eed9 | 7726 | |
548de4dd | 7727 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); |
e1b1d06a JP |
7728 | odp_flow_key_from_flow(&key, flow, |
7729 | ofp_port_to_odp_port(ofproto, flow->in_port)); | |
050ac423 | 7730 | |
548de4dd | 7731 | dpif_flow_stats_extract(flow, packet, time_msec(), &stats); |
abe529af | 7732 | |
14f94f9a | 7733 | initial_vals.vlan_tci = flow->vlan_tci; |
bbafd73b EJ |
7734 | xlate_in_init(&xin, ofproto, flow, &initial_vals, NULL, stats.tcp_flags, |
7735 | packet); | |
7736 | xin.resubmit_stats = &stats; | |
7737 | xin.ofpacts_len = ofpacts_len; | |
7738 | xin.ofpacts = ofpacts; | |
2284188b | 7739 | |
bbafd73b | 7740 | xlate_actions(&xin, &xout); |
acf60855 | 7741 | dpif_execute(ofproto->backer->dpif, key.data, key.size, |
bbafd73b EJ |
7742 | xout.odp_actions.data, xout.odp_actions.size, packet); |
7743 | xlate_out_uninit(&xout); | |
2284188b | 7744 | |
548de4dd | 7745 | return 0; |
abe529af | 7746 | } |
6fca1ffb BP |
7747 | \f |
7748 | /* NetFlow. */ | |
7749 | ||
7750 | static int | |
7751 | set_netflow(struct ofproto *ofproto_, | |
7752 | const struct netflow_options *netflow_options) | |
7753 | { | |
7754 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
7755 | ||
7756 | if (netflow_options) { | |
7757 | if (!ofproto->netflow) { | |
7758 | ofproto->netflow = netflow_create(); | |
7759 | } | |
7760 | return netflow_set_options(ofproto->netflow, netflow_options); | |
7761 | } else { | |
7762 | netflow_destroy(ofproto->netflow); | |
7763 | ofproto->netflow = NULL; | |
7764 | return 0; | |
7765 | } | |
7766 | } | |
abe529af BP |
7767 | |
7768 | static void | |
7769 | get_netflow_ids(const struct ofproto *ofproto_, | |
7770 | uint8_t *engine_type, uint8_t *engine_id) | |
7771 | { | |
7772 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
7773 | ||
acf60855 | 7774 | dpif_get_netflow_ids(ofproto->backer->dpif, engine_type, engine_id); |
abe529af | 7775 | } |
6fca1ffb BP |
7776 | |
7777 | static void | |
7778 | send_active_timeout(struct ofproto_dpif *ofproto, struct facet *facet) | |
7779 | { | |
7780 | if (!facet_is_controller_flow(facet) && | |
7781 | netflow_active_timeout_expired(ofproto->netflow, &facet->nf_flow)) { | |
b0f7b9b5 | 7782 | struct subfacet *subfacet; |
6fca1ffb BP |
7783 | struct ofexpired expired; |
7784 | ||
b0f7b9b5 | 7785 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { |
6a7e895f | 7786 | if (subfacet->path == SF_FAST_PATH) { |
b0f7b9b5 | 7787 | struct dpif_flow_stats stats; |
6fca1ffb | 7788 | |
bbafd73b | 7789 | subfacet_install(subfacet, &facet->xout.odp_actions, &stats); |
15baa734 | 7790 | subfacet_update_stats(subfacet, &stats); |
b0f7b9b5 | 7791 | } |
6fca1ffb BP |
7792 | } |
7793 | ||
7794 | expired.flow = facet->flow; | |
7795 | expired.packet_count = facet->packet_count; | |
7796 | expired.byte_count = facet->byte_count; | |
7797 | expired.used = facet->used; | |
7798 | netflow_expire(ofproto->netflow, &facet->nf_flow, &expired); | |
7799 | } | |
7800 | } | |
7801 | ||
7802 | static void | |
7803 | send_netflow_active_timeouts(struct ofproto_dpif *ofproto) | |
7804 | { | |
7805 | struct facet *facet; | |
7806 | ||
7807 | HMAP_FOR_EACH (facet, hmap_node, &ofproto->facets) { | |
7808 | send_active_timeout(ofproto, facet); | |
7809 | } | |
7810 | } | |
abe529af BP |
7811 | \f |
7812 | static struct ofproto_dpif * | |
7813 | ofproto_dpif_lookup(const char *name) | |
7814 | { | |
b44a10b7 BP |
7815 | struct ofproto_dpif *ofproto; |
7816 | ||
7817 | HMAP_FOR_EACH_WITH_HASH (ofproto, all_ofproto_dpifs_node, | |
7818 | hash_string(name, 0), &all_ofproto_dpifs) { | |
7819 | if (!strcmp(ofproto->up.name, name)) { | |
7820 | return ofproto; | |
7821 | } | |
7822 | } | |
7823 | return NULL; | |
abe529af BP |
7824 | } |
7825 | ||
f0a3aa2e | 7826 | static void |
96e466a3 | 7827 | ofproto_unixctl_fdb_flush(struct unixctl_conn *conn, int argc, |
0e15264f | 7828 | const char *argv[], void *aux OVS_UNUSED) |
f0a3aa2e | 7829 | { |
490df1ef | 7830 | struct ofproto_dpif *ofproto; |
f0a3aa2e | 7831 | |
96e466a3 EJ |
7832 | if (argc > 1) { |
7833 | ofproto = ofproto_dpif_lookup(argv[1]); | |
7834 | if (!ofproto) { | |
bde9f75d | 7835 | unixctl_command_reply_error(conn, "no such bridge"); |
96e466a3 EJ |
7836 | return; |
7837 | } | |
2cc3c58e | 7838 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); |
96e466a3 EJ |
7839 | } else { |
7840 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
2cc3c58e | 7841 | mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set); |
96e466a3 | 7842 | } |
f0a3aa2e | 7843 | } |
f0a3aa2e | 7844 | |
bde9f75d | 7845 | unixctl_command_reply(conn, "table successfully flushed"); |
f0a3aa2e AA |
7846 | } |
7847 | ||
abe529af | 7848 | static void |
0e15264f BP |
7849 | ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED, |
7850 | const char *argv[], void *aux OVS_UNUSED) | |
abe529af BP |
7851 | { |
7852 | struct ds ds = DS_EMPTY_INITIALIZER; | |
7853 | const struct ofproto_dpif *ofproto; | |
7854 | const struct mac_entry *e; | |
7855 | ||
0e15264f | 7856 | ofproto = ofproto_dpif_lookup(argv[1]); |
abe529af | 7857 | if (!ofproto) { |
bde9f75d | 7858 | unixctl_command_reply_error(conn, "no such bridge"); |
abe529af BP |
7859 | return; |
7860 | } | |
7861 | ||
7862 | ds_put_cstr(&ds, " port VLAN MAC Age\n"); | |
7863 | LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) { | |
7864 | struct ofbundle *bundle = e->port.p; | |
7865 | ds_put_format(&ds, "%5d %4d "ETH_ADDR_FMT" %3d\n", | |
7866 | ofbundle_get_a_port(bundle)->odp_port, | |
e764773c BP |
7867 | e->vlan, ETH_ADDR_ARGS(e->mac), |
7868 | mac_entry_age(ofproto->ml, e)); | |
abe529af | 7869 | } |
bde9f75d | 7870 | unixctl_command_reply(conn, ds_cstr(&ds)); |
abe529af BP |
7871 | ds_destroy(&ds); |
7872 | } | |
7873 | ||
6a6455e5 | 7874 | struct trace_ctx { |
bbafd73b EJ |
7875 | struct xlate_out xout; |
7876 | struct xlate_in xin; | |
abe529af BP |
7877 | struct flow flow; |
7878 | struct ds *result; | |
7879 | }; | |
7880 | ||
7881 | static void | |
29901626 BP |
7882 | trace_format_rule(struct ds *result, uint8_t table_id, int level, |
7883 | const struct rule_dpif *rule) | |
abe529af BP |
7884 | { |
7885 | ds_put_char_multiple(result, '\t', level); | |
7886 | if (!rule) { | |
7887 | ds_put_cstr(result, "No match\n"); | |
7888 | return; | |
7889 | } | |
7890 | ||
29901626 BP |
7891 | ds_put_format(result, "Rule: table=%"PRIu8" cookie=%#"PRIx64" ", |
7892 | table_id, ntohll(rule->up.flow_cookie)); | |
79feb7df | 7893 | cls_rule_format(&rule->up.cr, result); |
abe529af BP |
7894 | ds_put_char(result, '\n'); |
7895 | ||
7896 | ds_put_char_multiple(result, '\t', level); | |
7897 | ds_put_cstr(result, "OpenFlow "); | |
f25d0cf3 | 7898 | ofpacts_format(rule->up.ofpacts, rule->up.ofpacts_len, result); |
abe529af BP |
7899 | ds_put_char(result, '\n'); |
7900 | } | |
7901 | ||
7902 | static void | |
7903 | trace_format_flow(struct ds *result, int level, const char *title, | |
bbafd73b | 7904 | struct trace_ctx *trace) |
abe529af BP |
7905 | { |
7906 | ds_put_char_multiple(result, '\t', level); | |
7907 | ds_put_format(result, "%s: ", title); | |
bbafd73b | 7908 | if (flow_equal(&trace->xin.flow, &trace->flow)) { |
abe529af BP |
7909 | ds_put_cstr(result, "unchanged"); |
7910 | } else { | |
bbafd73b EJ |
7911 | flow_format(result, &trace->xin.flow); |
7912 | trace->flow = trace->xin.flow; | |
abe529af BP |
7913 | } |
7914 | ds_put_char(result, '\n'); | |
7915 | } | |
7916 | ||
eb9e1c26 EJ |
7917 | static void |
7918 | trace_format_regs(struct ds *result, int level, const char *title, | |
6a6455e5 | 7919 | struct trace_ctx *trace) |
eb9e1c26 EJ |
7920 | { |
7921 | size_t i; | |
7922 | ||
7923 | ds_put_char_multiple(result, '\t', level); | |
7924 | ds_put_format(result, "%s:", title); | |
7925 | for (i = 0; i < FLOW_N_REGS; i++) { | |
7926 | ds_put_format(result, " reg%zu=0x%"PRIx32, i, trace->flow.regs[i]); | |
7927 | } | |
7928 | ds_put_char(result, '\n'); | |
7929 | } | |
7930 | ||
1ed8d352 EJ |
7931 | static void |
7932 | trace_format_odp(struct ds *result, int level, const char *title, | |
6a6455e5 | 7933 | struct trace_ctx *trace) |
1ed8d352 | 7934 | { |
bbafd73b | 7935 | struct ofpbuf *odp_actions = &trace->xout.odp_actions; |
1ed8d352 EJ |
7936 | |
7937 | ds_put_char_multiple(result, '\t', level); | |
7938 | ds_put_format(result, "%s: ", title); | |
7939 | format_odp_actions(result, odp_actions->data, odp_actions->size); | |
7940 | ds_put_char(result, '\n'); | |
7941 | } | |
7942 | ||
abe529af | 7943 | static void |
f03a84b9 | 7944 | trace_resubmit(struct xlate_ctx *ctx, struct rule_dpif *rule) |
abe529af | 7945 | { |
bbafd73b | 7946 | struct trace_ctx *trace = CONTAINER_OF(ctx->xin, struct trace_ctx, xin); |
abe529af BP |
7947 | struct ds *result = trace->result; |
7948 | ||
7949 | ds_put_char(result, '\n'); | |
7950 | trace_format_flow(result, ctx->recurse + 1, "Resubmitted flow", trace); | |
eb9e1c26 | 7951 | trace_format_regs(result, ctx->recurse + 1, "Resubmitted regs", trace); |
1ed8d352 | 7952 | trace_format_odp(result, ctx->recurse + 1, "Resubmitted odp", trace); |
29901626 | 7953 | trace_format_rule(result, ctx->table_id, ctx->recurse + 1, rule); |
abe529af BP |
7954 | } |
7955 | ||
479df176 | 7956 | static void |
f03a84b9 | 7957 | trace_report(struct xlate_ctx *ctx, const char *s) |
479df176 | 7958 | { |
bbafd73b | 7959 | struct trace_ctx *trace = CONTAINER_OF(ctx->xin, struct trace_ctx, xin); |
479df176 BP |
7960 | struct ds *result = trace->result; |
7961 | ||
7962 | ds_put_char_multiple(result, '\t', ctx->recurse); | |
7963 | ds_put_cstr(result, s); | |
7964 | ds_put_char(result, '\n'); | |
7965 | } | |
7966 | ||
abe529af | 7967 | static void |
0e15264f | 7968 | ofproto_unixctl_trace(struct unixctl_conn *conn, int argc, const char *argv[], |
abe529af BP |
7969 | void *aux OVS_UNUSED) |
7970 | { | |
50aa28fd | 7971 | const struct dpif_backer *backer; |
abe529af | 7972 | struct ofproto_dpif *ofproto; |
876b0e1c BP |
7973 | struct ofpbuf odp_key; |
7974 | struct ofpbuf *packet; | |
14f94f9a | 7975 | struct initial_vals initial_vals; |
abe529af BP |
7976 | struct ds result; |
7977 | struct flow flow; | |
abe529af BP |
7978 | char *s; |
7979 | ||
876b0e1c | 7980 | packet = NULL; |
50aa28fd | 7981 | backer = NULL; |
abe529af | 7982 | ds_init(&result); |
50aa28fd | 7983 | ofpbuf_init(&odp_key, 0); |
abe529af | 7984 | |
50aa28fd AW |
7985 | /* Handle "-generate" or a hex string as the last argument. */ |
7986 | if (!strcmp(argv[argc - 1], "-generate")) { | |
7987 | packet = ofpbuf_new(0); | |
7988 | argc--; | |
7989 | } else { | |
7990 | const char *error = eth_from_hex(argv[argc - 1], &packet); | |
7991 | if (!error) { | |
7992 | argc--; | |
7993 | } else if (argc == 4) { | |
7994 | /* The 3-argument form must end in "-generate' or a hex string. */ | |
7995 | unixctl_command_reply_error(conn, error); | |
7996 | goto exit; | |
7997 | } | |
e84173dc | 7998 | } |
876b0e1c | 7999 | |
50aa28fd AW |
8000 | /* Parse the flow and determine whether a datapath or |
8001 | * bridge is specified. If function odp_flow_key_from_string() | |
8002 | * returns 0, the flow is a odp_flow. If function | |
8003 | * parse_ofp_exact_flow() returns 0, the flow is a br_flow. */ | |
8004 | if (!odp_flow_key_from_string(argv[argc - 1], NULL, &odp_key)) { | |
8005 | /* If the odp_flow is the second argument, | |
8006 | * the datapath name is the first argument. */ | |
8007 | if (argc == 3) { | |
8008 | const char *dp_type; | |
8009 | if (!strncmp(argv[1], "ovs-", 4)) { | |
8010 | dp_type = argv[1] + 4; | |
8011 | } else { | |
8012 | dp_type = argv[1]; | |
31a19d69 | 8013 | } |
50aa28fd AW |
8014 | backer = shash_find_data(&all_dpif_backers, dp_type); |
8015 | if (!backer) { | |
8016 | unixctl_command_reply_error(conn, "Cannot find datapath " | |
8017 | "of this name"); | |
31a19d69 BP |
8018 | goto exit; |
8019 | } | |
8020 | } else { | |
50aa28fd AW |
8021 | /* No datapath name specified, so there should be only one |
8022 | * datapath. */ | |
8023 | struct shash_node *node; | |
8024 | if (shash_count(&all_dpif_backers) != 1) { | |
8025 | unixctl_command_reply_error(conn, "Must specify datapath " | |
8026 | "name, there is more than one type of datapath"); | |
31a19d69 BP |
8027 | goto exit; |
8028 | } | |
50aa28fd AW |
8029 | node = shash_first(&all_dpif_backers); |
8030 | backer = node->data; | |
876b0e1c | 8031 | } |
8b3b8dd1 | 8032 | |
50aa28fd AW |
8033 | /* Extract the ofproto_dpif object from the ofproto_receive() |
8034 | * function. */ | |
8035 | if (ofproto_receive(backer, NULL, odp_key.data, | |
8036 | odp_key.size, &flow, NULL, &ofproto, NULL, | |
8037 | &initial_vals)) { | |
8038 | unixctl_command_reply_error(conn, "Invalid datapath flow"); | |
8039 | goto exit; | |
8b3b8dd1 | 8040 | } |
50aa28fd AW |
8041 | ds_put_format(&result, "Bridge: %s\n", ofproto->up.name); |
8042 | } else if (!parse_ofp_exact_flow(&flow, argv[argc - 1])) { | |
8043 | if (argc != 3) { | |
8044 | unixctl_command_reply_error(conn, "Must specify bridge name"); | |
876b0e1c BP |
8045 | goto exit; |
8046 | } | |
8047 | ||
50aa28fd AW |
8048 | ofproto = ofproto_dpif_lookup(argv[1]); |
8049 | if (!ofproto) { | |
8050 | unixctl_command_reply_error(conn, "Unknown bridge name"); | |
8051 | goto exit; | |
8052 | } | |
14f94f9a | 8053 | initial_vals.vlan_tci = flow.vlan_tci; |
876b0e1c | 8054 | } else { |
50aa28fd | 8055 | unixctl_command_reply_error(conn, "Bad flow syntax"); |
abe529af BP |
8056 | goto exit; |
8057 | } | |
8058 | ||
50aa28fd AW |
8059 | /* Generate a packet, if requested. */ |
8060 | if (packet) { | |
8061 | if (!packet->size) { | |
8062 | flow_compose(packet, &flow); | |
8063 | } else { | |
8064 | ds_put_cstr(&result, "Packet: "); | |
8065 | s = ofp_packet_to_string(packet->data, packet->size); | |
8066 | ds_put_cstr(&result, s); | |
8067 | free(s); | |
8068 | ||
8069 | /* Use the metadata from the flow and the packet argument | |
8070 | * to reconstruct the flow. */ | |
8071 | flow_extract(packet, flow.skb_priority, flow.skb_mark, NULL, | |
8072 | flow.in_port, &flow); | |
8073 | initial_vals.vlan_tci = flow.vlan_tci; | |
8074 | } | |
8075 | } | |
8076 | ||
14f94f9a | 8077 | ofproto_trace(ofproto, &flow, packet, &initial_vals, &result); |
6a6455e5 EJ |
8078 | unixctl_command_reply(conn, ds_cstr(&result)); |
8079 | ||
8080 | exit: | |
8081 | ds_destroy(&result); | |
8082 | ofpbuf_delete(packet); | |
8083 | ofpbuf_uninit(&odp_key); | |
8084 | } | |
8085 | ||
8086 | static void | |
8087 | ofproto_trace(struct ofproto_dpif *ofproto, const struct flow *flow, | |
14f94f9a JP |
8088 | const struct ofpbuf *packet, |
8089 | const struct initial_vals *initial_vals, struct ds *ds) | |
6a6455e5 EJ |
8090 | { |
8091 | struct rule_dpif *rule; | |
8092 | ||
8093 | ds_put_cstr(ds, "Flow: "); | |
8094 | flow_format(ds, flow); | |
8095 | ds_put_char(ds, '\n'); | |
abe529af | 8096 | |
c57b2226 BP |
8097 | rule = rule_dpif_lookup(ofproto, flow); |
8098 | ||
6a6455e5 | 8099 | trace_format_rule(ds, 0, 0, rule); |
c57b2226 BP |
8100 | if (rule == ofproto->miss_rule) { |
8101 | ds_put_cstr(ds, "\nNo match, flow generates \"packet in\"s.\n"); | |
8102 | } else if (rule == ofproto->no_packet_in_rule) { | |
8103 | ds_put_cstr(ds, "\nNo match, packets dropped because " | |
8104 | "OFPPC_NO_PACKET_IN is set on in_port.\n"); | |
7fd51d39 BP |
8105 | } else if (rule == ofproto->drop_frags_rule) { |
8106 | ds_put_cstr(ds, "\nPackets dropped because they are IP fragments " | |
8107 | "and the fragment handling mode is \"drop\".\n"); | |
c57b2226 BP |
8108 | } |
8109 | ||
abe529af | 8110 | if (rule) { |
050ac423 BP |
8111 | uint64_t odp_actions_stub[1024 / 8]; |
8112 | struct ofpbuf odp_actions; | |
8113 | ||
6a6455e5 | 8114 | struct trace_ctx trace; |
0e553d9c | 8115 | uint8_t tcp_flags; |
abe529af | 8116 | |
6a6455e5 EJ |
8117 | tcp_flags = packet ? packet_get_tcp_flags(packet, flow) : 0; |
8118 | trace.result = ds; | |
8119 | trace.flow = *flow; | |
050ac423 BP |
8120 | ofpbuf_use_stub(&odp_actions, |
8121 | odp_actions_stub, sizeof odp_actions_stub); | |
bbafd73b EJ |
8122 | xlate_in_init(&trace.xin, ofproto, flow, initial_vals, rule, tcp_flags, |
8123 | packet); | |
8124 | trace.xin.resubmit_hook = trace_resubmit; | |
8125 | trace.xin.report_hook = trace_report; | |
8126 | xlate_actions(&trace.xin, &trace.xout); | |
abe529af | 8127 | |
6a6455e5 EJ |
8128 | ds_put_char(ds, '\n'); |
8129 | trace_format_flow(ds, 0, "Final flow", &trace); | |
8130 | ds_put_cstr(ds, "Datapath actions: "); | |
bbafd73b EJ |
8131 | format_odp_actions(ds, trace.xout.odp_actions.data, |
8132 | trace.xout.odp_actions.size); | |
876b0e1c | 8133 | |
bbafd73b | 8134 | if (trace.xout.slow) { |
6a7e895f BP |
8135 | ds_put_cstr(ds, "\nThis flow is handled by the userspace " |
8136 | "slow path because it:"); | |
bbafd73b | 8137 | switch (trace.xout.slow) { |
98f0520f EJ |
8138 | case SLOW_CFM: |
8139 | ds_put_cstr(ds, "\n\t- Consists of CFM packets."); | |
8140 | break; | |
8141 | case SLOW_LACP: | |
8142 | ds_put_cstr(ds, "\n\t- Consists of LACP packets."); | |
8143 | break; | |
8144 | case SLOW_STP: | |
8145 | ds_put_cstr(ds, "\n\t- Consists of STP packets."); | |
8146 | break; | |
8147 | case SLOW_BFD: | |
8148 | ds_put_cstr(ds, "\n\t- Consists of BFD packets."); | |
8149 | break; | |
8150 | case SLOW_CONTROLLER: | |
8151 | ds_put_cstr(ds, "\n\t- Sends \"packet-in\" messages " | |
8152 | "to the OpenFlow controller."); | |
8153 | break; | |
8154 | case __SLOW_MAX: | |
8155 | NOT_REACHED(); | |
6a7e895f | 8156 | } |
876b0e1c | 8157 | } |
bbafd73b EJ |
8158 | |
8159 | xlate_out_uninit(&trace.xout); | |
abe529af | 8160 | } |
abe529af BP |
8161 | } |
8162 | ||
7ee20df1 | 8163 | static void |
0e15264f BP |
8164 | ofproto_dpif_clog(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED, |
8165 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7ee20df1 BP |
8166 | { |
8167 | clogged = true; | |
bde9f75d | 8168 | unixctl_command_reply(conn, NULL); |
7ee20df1 BP |
8169 | } |
8170 | ||
8171 | static void | |
0e15264f BP |
8172 | ofproto_dpif_unclog(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED, |
8173 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7ee20df1 BP |
8174 | { |
8175 | clogged = false; | |
bde9f75d | 8176 | unixctl_command_reply(conn, NULL); |
7ee20df1 BP |
8177 | } |
8178 | ||
6814e51f BP |
8179 | /* Runs a self-check of flow translations in 'ofproto'. Appends a message to |
8180 | * 'reply' describing the results. */ | |
8181 | static void | |
8182 | ofproto_dpif_self_check__(struct ofproto_dpif *ofproto, struct ds *reply) | |
8183 | { | |
8184 | struct facet *facet; | |
8185 | int errors; | |
8186 | ||
8187 | errors = 0; | |
8188 | HMAP_FOR_EACH (facet, hmap_node, &ofproto->facets) { | |
8189 | if (!facet_check_consistency(facet)) { | |
8190 | errors++; | |
8191 | } | |
8192 | } | |
8193 | if (errors) { | |
2cc3c58e | 8194 | ofproto->backer->need_revalidate = REV_INCONSISTENCY; |
6814e51f BP |
8195 | } |
8196 | ||
8197 | if (errors) { | |
8198 | ds_put_format(reply, "%s: self-check failed (%d errors)\n", | |
8199 | ofproto->up.name, errors); | |
8200 | } else { | |
8201 | ds_put_format(reply, "%s: self-check passed\n", ofproto->up.name); | |
8202 | } | |
8203 | } | |
8204 | ||
8205 | static void | |
8206 | ofproto_dpif_self_check(struct unixctl_conn *conn, | |
8207 | int argc, const char *argv[], void *aux OVS_UNUSED) | |
8208 | { | |
8209 | struct ds reply = DS_EMPTY_INITIALIZER; | |
8210 | struct ofproto_dpif *ofproto; | |
8211 | ||
8212 | if (argc > 1) { | |
8213 | ofproto = ofproto_dpif_lookup(argv[1]); | |
8214 | if (!ofproto) { | |
bde9f75d EJ |
8215 | unixctl_command_reply_error(conn, "Unknown ofproto (use " |
8216 | "ofproto/list for help)"); | |
6814e51f BP |
8217 | return; |
8218 | } | |
8219 | ofproto_dpif_self_check__(ofproto, &reply); | |
8220 | } else { | |
8221 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
8222 | ofproto_dpif_self_check__(ofproto, &reply); | |
8223 | } | |
8224 | } | |
8225 | ||
bde9f75d | 8226 | unixctl_command_reply(conn, ds_cstr(&reply)); |
6814e51f BP |
8227 | ds_destroy(&reply); |
8228 | } | |
8229 | ||
27022416 JP |
8230 | /* Store the current ofprotos in 'ofproto_shash'. Returns a sorted list |
8231 | * of the 'ofproto_shash' nodes. It is the responsibility of the caller | |
8232 | * to destroy 'ofproto_shash' and free the returned value. */ | |
8233 | static const struct shash_node ** | |
8234 | get_ofprotos(struct shash *ofproto_shash) | |
8235 | { | |
8236 | const struct ofproto_dpif *ofproto; | |
8237 | ||
8238 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
8239 | char *name = xasprintf("%s@%s", ofproto->up.type, ofproto->up.name); | |
8240 | shash_add_nocopy(ofproto_shash, name, ofproto); | |
8241 | } | |
8242 | ||
8243 | return shash_sort(ofproto_shash); | |
8244 | } | |
8245 | ||
8246 | static void | |
8247 | ofproto_unixctl_dpif_dump_dps(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
8248 | const char *argv[] OVS_UNUSED, | |
8249 | void *aux OVS_UNUSED) | |
8250 | { | |
8251 | struct ds ds = DS_EMPTY_INITIALIZER; | |
8252 | struct shash ofproto_shash; | |
8253 | const struct shash_node **sorted_ofprotos; | |
8254 | int i; | |
8255 | ||
8256 | shash_init(&ofproto_shash); | |
8257 | sorted_ofprotos = get_ofprotos(&ofproto_shash); | |
8258 | for (i = 0; i < shash_count(&ofproto_shash); i++) { | |
8259 | const struct shash_node *node = sorted_ofprotos[i]; | |
8260 | ds_put_format(&ds, "%s\n", node->name); | |
8261 | } | |
8262 | ||
8263 | shash_destroy(&ofproto_shash); | |
8264 | free(sorted_ofprotos); | |
8265 | ||
8266 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
8267 | ds_destroy(&ds); | |
8268 | } | |
8269 | ||
8270 | static void | |
8271 | show_dp_format(const struct ofproto_dpif *ofproto, struct ds *ds) | |
8272 | { | |
27022416 JP |
8273 | const struct shash_node **ports; |
8274 | int i; | |
655ab909 AZ |
8275 | struct avg_subfacet_rates lifetime; |
8276 | unsigned long long int minutes; | |
8277 | const int min_ms = 60 * 1000; /* milliseconds in one minute. */ | |
8278 | ||
8279 | minutes = (time_msec() - ofproto->created) / min_ms; | |
8280 | ||
8281 | if (minutes > 0) { | |
8282 | lifetime.add_rate = (double)ofproto->total_subfacet_add_count | |
8283 | / minutes; | |
8284 | lifetime.del_rate = (double)ofproto->total_subfacet_del_count | |
8285 | / minutes; | |
8286 | }else { | |
8287 | lifetime.add_rate = 0.0; | |
8288 | lifetime.del_rate = 0.0; | |
8289 | } | |
27022416 | 8290 | |
acf60855 JP |
8291 | ds_put_format(ds, "%s (%s):\n", ofproto->up.name, |
8292 | dpif_name(ofproto->backer->dpif)); | |
27022416 | 8293 | ds_put_format(ds, |
735d7efb AZ |
8294 | "\tlookups: hit:%"PRIu64" missed:%"PRIu64"\n", |
8295 | ofproto->n_hit, ofproto->n_missed); | |
655ab909 AZ |
8296 | ds_put_format(ds, "\tflows: cur: %zu, avg: %5.3f, max: %d," |
8297 | " life span: %llu(ms)\n", | |
8298 | hmap_count(&ofproto->subfacets), | |
8299 | avg_subfacet_count(ofproto), | |
8300 | ofproto->max_n_subfacet, | |
8301 | avg_subfacet_life_span(ofproto)); | |
8302 | if (minutes >= 60) { | |
8303 | show_dp_rates(ds, "\t\thourly avg:", &ofproto->hourly); | |
8304 | } | |
8305 | if (minutes >= 60 * 24) { | |
8306 | show_dp_rates(ds, "\t\tdaily avg:", &ofproto->daily); | |
8307 | } | |
8308 | show_dp_rates(ds, "\t\toverall avg:", &lifetime); | |
27022416 JP |
8309 | |
8310 | ports = shash_sort(&ofproto->up.port_by_name); | |
8311 | for (i = 0; i < shash_count(&ofproto->up.port_by_name); i++) { | |
8312 | const struct shash_node *node = ports[i]; | |
8313 | struct ofport *ofport = node->data; | |
8314 | const char *name = netdev_get_name(ofport->netdev); | |
8315 | const char *type = netdev_get_type(ofport->netdev); | |
0a740f48 EJ |
8316 | uint32_t odp_port; |
8317 | ||
8318 | ds_put_format(ds, "\t%s %u/", name, ofport->ofp_port); | |
8319 | ||
8320 | odp_port = ofp_port_to_odp_port(ofproto, ofport->ofp_port); | |
8321 | if (odp_port != OVSP_NONE) { | |
8322 | ds_put_format(ds, "%"PRIu32":", odp_port); | |
8323 | } else { | |
8324 | ds_put_cstr(ds, "none:"); | |
8325 | } | |
27022416 | 8326 | |
27022416 JP |
8327 | if (strcmp(type, "system")) { |
8328 | struct netdev *netdev; | |
8329 | int error; | |
8330 | ||
8331 | ds_put_format(ds, " (%s", type); | |
8332 | ||
8333 | error = netdev_open(name, type, &netdev); | |
8334 | if (!error) { | |
8335 | struct smap config; | |
8336 | ||
8337 | smap_init(&config); | |
8338 | error = netdev_get_config(netdev, &config); | |
8339 | if (!error) { | |
8340 | const struct smap_node **nodes; | |
8341 | size_t i; | |
8342 | ||
8343 | nodes = smap_sort(&config); | |
8344 | for (i = 0; i < smap_count(&config); i++) { | |
8345 | const struct smap_node *node = nodes[i]; | |
8346 | ds_put_format(ds, "%c %s=%s", i ? ',' : ':', | |
8347 | node->key, node->value); | |
8348 | } | |
8349 | free(nodes); | |
8350 | } | |
8351 | smap_destroy(&config); | |
8352 | ||
8353 | netdev_close(netdev); | |
8354 | } | |
8355 | ds_put_char(ds, ')'); | |
8356 | } | |
8357 | ds_put_char(ds, '\n'); | |
8358 | } | |
8359 | free(ports); | |
8360 | } | |
8361 | ||
8362 | static void | |
8363 | ofproto_unixctl_dpif_show(struct unixctl_conn *conn, int argc, | |
8364 | const char *argv[], void *aux OVS_UNUSED) | |
8365 | { | |
8366 | struct ds ds = DS_EMPTY_INITIALIZER; | |
8367 | const struct ofproto_dpif *ofproto; | |
8368 | ||
8369 | if (argc > 1) { | |
8370 | int i; | |
8371 | for (i = 1; i < argc; i++) { | |
8372 | ofproto = ofproto_dpif_lookup(argv[i]); | |
8373 | if (!ofproto) { | |
8374 | ds_put_format(&ds, "Unknown bridge %s (use dpif/dump-dps " | |
8375 | "for help)", argv[i]); | |
8376 | unixctl_command_reply_error(conn, ds_cstr(&ds)); | |
8377 | return; | |
8378 | } | |
8379 | show_dp_format(ofproto, &ds); | |
8380 | } | |
8381 | } else { | |
8382 | struct shash ofproto_shash; | |
8383 | const struct shash_node **sorted_ofprotos; | |
8384 | int i; | |
8385 | ||
8386 | shash_init(&ofproto_shash); | |
8387 | sorted_ofprotos = get_ofprotos(&ofproto_shash); | |
8388 | for (i = 0; i < shash_count(&ofproto_shash); i++) { | |
8389 | const struct shash_node *node = sorted_ofprotos[i]; | |
8390 | show_dp_format(node->data, &ds); | |
8391 | } | |
8392 | ||
8393 | shash_destroy(&ofproto_shash); | |
8394 | free(sorted_ofprotos); | |
8395 | } | |
8396 | ||
8397 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
8398 | ds_destroy(&ds); | |
8399 | } | |
8400 | ||
8401 | static void | |
8402 | ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn, | |
8403 | int argc OVS_UNUSED, const char *argv[], | |
8404 | void *aux OVS_UNUSED) | |
8405 | { | |
8406 | struct ds ds = DS_EMPTY_INITIALIZER; | |
8407 | const struct ofproto_dpif *ofproto; | |
8408 | struct subfacet *subfacet; | |
8409 | ||
8410 | ofproto = ofproto_dpif_lookup(argv[1]); | |
8411 | if (!ofproto) { | |
8412 | unixctl_command_reply_error(conn, "no such bridge"); | |
8413 | return; | |
8414 | } | |
8415 | ||
af37354d EJ |
8416 | update_stats(ofproto->backer); |
8417 | ||
27022416 | 8418 | HMAP_FOR_EACH (subfacet, hmap_node, &ofproto->subfacets) { |
4dff9097 EJ |
8419 | struct facet *facet = subfacet->facet; |
8420 | ||
9566abf9 | 8421 | odp_flow_key_format(subfacet->key, subfacet->key_len, &ds); |
27022416 JP |
8422 | |
8423 | ds_put_format(&ds, ", packets:%"PRIu64", bytes:%"PRIu64", used:", | |
8424 | subfacet->dp_packet_count, subfacet->dp_byte_count); | |
8425 | if (subfacet->used) { | |
8426 | ds_put_format(&ds, "%.3fs", | |
8427 | (time_msec() - subfacet->used) / 1000.0); | |
8428 | } else { | |
8429 | ds_put_format(&ds, "never"); | |
8430 | } | |
8431 | if (subfacet->facet->tcp_flags) { | |
8432 | ds_put_cstr(&ds, ", flags:"); | |
8433 | packet_format_tcp_flags(&ds, subfacet->facet->tcp_flags); | |
8434 | } | |
8435 | ||
8436 | ds_put_cstr(&ds, ", actions:"); | |
bbafd73b | 8437 | if (facet->xout.slow) { |
f2245da3 JP |
8438 | uint64_t slow_path_stub[128 / 8]; |
8439 | const struct nlattr *actions; | |
8440 | size_t actions_len; | |
8441 | ||
bbafd73b | 8442 | compose_slow_path(ofproto, &facet->flow, facet->xout.slow, |
f2245da3 JP |
8443 | slow_path_stub, sizeof slow_path_stub, |
8444 | &actions, &actions_len); | |
8445 | format_odp_actions(&ds, actions, actions_len); | |
8446 | } else { | |
bbafd73b EJ |
8447 | format_odp_actions(&ds, facet->xout.odp_actions.data, |
8448 | facet->xout.odp_actions.size); | |
f2245da3 | 8449 | } |
27022416 JP |
8450 | ds_put_char(&ds, '\n'); |
8451 | } | |
8452 | ||
8453 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
8454 | ds_destroy(&ds); | |
8455 | } | |
8456 | ||
8457 | static void | |
8458 | ofproto_unixctl_dpif_del_flows(struct unixctl_conn *conn, | |
8459 | int argc OVS_UNUSED, const char *argv[], | |
8460 | void *aux OVS_UNUSED) | |
8461 | { | |
8462 | struct ds ds = DS_EMPTY_INITIALIZER; | |
8463 | struct ofproto_dpif *ofproto; | |
8464 | ||
8465 | ofproto = ofproto_dpif_lookup(argv[1]); | |
8466 | if (!ofproto) { | |
8467 | unixctl_command_reply_error(conn, "no such bridge"); | |
8468 | return; | |
8469 | } | |
8470 | ||
8471 | flush(&ofproto->up); | |
8472 | ||
8473 | unixctl_command_reply(conn, ds_cstr(&ds)); | |
8474 | ds_destroy(&ds); | |
8475 | } | |
8476 | ||
abe529af BP |
8477 | static void |
8478 | ofproto_dpif_unixctl_init(void) | |
8479 | { | |
8480 | static bool registered; | |
8481 | if (registered) { | |
8482 | return; | |
8483 | } | |
8484 | registered = true; | |
8485 | ||
0e15264f BP |
8486 | unixctl_command_register( |
8487 | "ofproto/trace", | |
50aa28fd AW |
8488 | "[dp_name]|bridge odp_flow|br_flow [-generate|packet]", |
8489 | 1, 3, ofproto_unixctl_trace, NULL); | |
96e466a3 | 8490 | unixctl_command_register("fdb/flush", "[bridge]", 0, 1, |
0e15264f BP |
8491 | ofproto_unixctl_fdb_flush, NULL); |
8492 | unixctl_command_register("fdb/show", "bridge", 1, 1, | |
8493 | ofproto_unixctl_fdb_show, NULL); | |
8494 | unixctl_command_register("ofproto/clog", "", 0, 0, | |
8495 | ofproto_dpif_clog, NULL); | |
8496 | unixctl_command_register("ofproto/unclog", "", 0, 0, | |
8497 | ofproto_dpif_unclog, NULL); | |
6814e51f BP |
8498 | unixctl_command_register("ofproto/self-check", "[bridge]", 0, 1, |
8499 | ofproto_dpif_self_check, NULL); | |
27022416 JP |
8500 | unixctl_command_register("dpif/dump-dps", "", 0, 0, |
8501 | ofproto_unixctl_dpif_dump_dps, NULL); | |
8502 | unixctl_command_register("dpif/show", "[bridge]", 0, INT_MAX, | |
8503 | ofproto_unixctl_dpif_show, NULL); | |
8504 | unixctl_command_register("dpif/dump-flows", "bridge", 1, 1, | |
8505 | ofproto_unixctl_dpif_dump_flows, NULL); | |
8506 | unixctl_command_register("dpif/del-flows", "bridge", 1, 1, | |
8507 | ofproto_unixctl_dpif_del_flows, NULL); | |
abe529af BP |
8508 | } |
8509 | \f | |
52a90c29 BP |
8510 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) |
8511 | * | |
8512 | * This is deprecated. It is only for compatibility with broken device drivers | |
8513 | * in old versions of Linux that do not properly support VLANs when VLAN | |
8514 | * devices are not used. When broken device drivers are no longer in | |
8515 | * widespread use, we will delete these interfaces. */ | |
8516 | ||
8517 | static int | |
8518 | set_realdev(struct ofport *ofport_, uint16_t realdev_ofp_port, int vid) | |
8519 | { | |
8520 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto); | |
8521 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
8522 | ||
8523 | if (realdev_ofp_port == ofport->realdev_ofp_port | |
8524 | && vid == ofport->vlandev_vid) { | |
8525 | return 0; | |
8526 | } | |
8527 | ||
2cc3c58e | 8528 | ofproto->backer->need_revalidate = REV_RECONFIGURE; |
52a90c29 BP |
8529 | |
8530 | if (ofport->realdev_ofp_port) { | |
8531 | vsp_remove(ofport); | |
8532 | } | |
8533 | if (realdev_ofp_port && ofport->bundle) { | |
8534 | /* vlandevs are enslaved to their realdevs, so they are not allowed to | |
8535 | * themselves be part of a bundle. */ | |
8536 | bundle_set(ofport->up.ofproto, ofport->bundle, NULL); | |
8537 | } | |
8538 | ||
8539 | ofport->realdev_ofp_port = realdev_ofp_port; | |
8540 | ofport->vlandev_vid = vid; | |
8541 | ||
8542 | if (realdev_ofp_port) { | |
8543 | vsp_add(ofport, realdev_ofp_port, vid); | |
8544 | } | |
8545 | ||
8546 | return 0; | |
8547 | } | |
8548 | ||
8549 | static uint32_t | |
8550 | hash_realdev_vid(uint16_t realdev_ofp_port, int vid) | |
8551 | { | |
8552 | return hash_2words(realdev_ofp_port, vid); | |
8553 | } | |
8554 | ||
deea1200 AW |
8555 | /* Returns the OFP port number of the Linux VLAN device that corresponds to |
8556 | * 'vlan_tci' on the network device with port number 'realdev_ofp_port' in | |
8557 | * 'struct ofport_dpif'. For example, given 'realdev_ofp_port' of eth0 and | |
8558 | * 'vlan_tci' 9, it would return the port number of eth0.9. | |
40e05935 | 8559 | * |
deea1200 AW |
8560 | * Unless VLAN splinters are enabled for port 'realdev_ofp_port', this |
8561 | * function just returns its 'realdev_ofp_port' argument. */ | |
8562 | static uint16_t | |
52a90c29 | 8563 | vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto, |
deea1200 | 8564 | uint16_t realdev_ofp_port, ovs_be16 vlan_tci) |
52a90c29 BP |
8565 | { |
8566 | if (!hmap_is_empty(&ofproto->realdev_vid_map)) { | |
52a90c29 BP |
8567 | int vid = vlan_tci_to_vid(vlan_tci); |
8568 | const struct vlan_splinter *vsp; | |
8569 | ||
8570 | HMAP_FOR_EACH_WITH_HASH (vsp, realdev_vid_node, | |
8571 | hash_realdev_vid(realdev_ofp_port, vid), | |
8572 | &ofproto->realdev_vid_map) { | |
8573 | if (vsp->realdev_ofp_port == realdev_ofp_port | |
8574 | && vsp->vid == vid) { | |
deea1200 | 8575 | return vsp->vlandev_ofp_port; |
52a90c29 BP |
8576 | } |
8577 | } | |
8578 | } | |
deea1200 | 8579 | return realdev_ofp_port; |
52a90c29 BP |
8580 | } |
8581 | ||
8582 | static struct vlan_splinter * | |
8583 | vlandev_find(const struct ofproto_dpif *ofproto, uint16_t vlandev_ofp_port) | |
8584 | { | |
8585 | struct vlan_splinter *vsp; | |
8586 | ||
8587 | HMAP_FOR_EACH_WITH_HASH (vsp, vlandev_node, hash_int(vlandev_ofp_port, 0), | |
8588 | &ofproto->vlandev_map) { | |
8589 | if (vsp->vlandev_ofp_port == vlandev_ofp_port) { | |
8590 | return vsp; | |
8591 | } | |
8592 | } | |
8593 | ||
8594 | return NULL; | |
8595 | } | |
8596 | ||
40e05935 BP |
8597 | /* Returns the OpenFlow port number of the "real" device underlying the Linux |
8598 | * VLAN device with OpenFlow port number 'vlandev_ofp_port' and stores the | |
8599 | * VLAN VID of the Linux VLAN device in '*vid'. For example, given | |
8600 | * 'vlandev_ofp_port' of eth0.9, it would return the OpenFlow port number of | |
8601 | * eth0 and store 9 in '*vid'. | |
8602 | * | |
8603 | * Returns 0 and does not modify '*vid' if 'vlandev_ofp_port' is not a Linux | |
8604 | * VLAN device. Unless VLAN splinters are enabled, this is what this function | |
8605 | * always does.*/ | |
52a90c29 BP |
8606 | static uint16_t |
8607 | vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto, | |
40e05935 | 8608 | uint16_t vlandev_ofp_port, int *vid) |
52a90c29 BP |
8609 | { |
8610 | if (!hmap_is_empty(&ofproto->vlandev_map)) { | |
8611 | const struct vlan_splinter *vsp; | |
8612 | ||
8613 | vsp = vlandev_find(ofproto, vlandev_ofp_port); | |
8614 | if (vsp) { | |
8615 | if (vid) { | |
8616 | *vid = vsp->vid; | |
8617 | } | |
8618 | return vsp->realdev_ofp_port; | |
8619 | } | |
8620 | } | |
8621 | return 0; | |
8622 | } | |
8623 | ||
b98d8985 BP |
8624 | /* Given 'flow', a flow representing a packet received on 'ofproto', checks |
8625 | * whether 'flow->in_port' represents a Linux VLAN device. If so, changes | |
8626 | * 'flow->in_port' to the "real" device backing the VLAN device, sets | |
8627 | * 'flow->vlan_tci' to the VLAN VID, and returns true. Otherwise (which is | |
8628 | * always the case unless VLAN splinters are enabled), returns false without | |
8629 | * making any changes. */ | |
8630 | static bool | |
8631 | vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow) | |
8632 | { | |
8633 | uint16_t realdev; | |
8634 | int vid; | |
8635 | ||
8636 | realdev = vsp_vlandev_to_realdev(ofproto, flow->in_port, &vid); | |
8637 | if (!realdev) { | |
8638 | return false; | |
8639 | } | |
8640 | ||
8641 | /* Cause the flow to be processed as if it came in on the real device with | |
8642 | * the VLAN device's VLAN ID. */ | |
8643 | flow->in_port = realdev; | |
8644 | flow->vlan_tci = htons((vid & VLAN_VID_MASK) | VLAN_CFI); | |
8645 | return true; | |
8646 | } | |
8647 | ||
52a90c29 BP |
8648 | static void |
8649 | vsp_remove(struct ofport_dpif *port) | |
8650 | { | |
8651 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
8652 | struct vlan_splinter *vsp; | |
8653 | ||
8654 | vsp = vlandev_find(ofproto, port->up.ofp_port); | |
8655 | if (vsp) { | |
8656 | hmap_remove(&ofproto->vlandev_map, &vsp->vlandev_node); | |
8657 | hmap_remove(&ofproto->realdev_vid_map, &vsp->realdev_vid_node); | |
8658 | free(vsp); | |
8659 | ||
8660 | port->realdev_ofp_port = 0; | |
8661 | } else { | |
8662 | VLOG_ERR("missing vlan device record"); | |
8663 | } | |
8664 | } | |
8665 | ||
8666 | static void | |
8667 | vsp_add(struct ofport_dpif *port, uint16_t realdev_ofp_port, int vid) | |
8668 | { | |
8669 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
8670 | ||
8671 | if (!vsp_vlandev_to_realdev(ofproto, port->up.ofp_port, NULL) | |
8672 | && (vsp_realdev_to_vlandev(ofproto, realdev_ofp_port, htons(vid)) | |
8673 | == realdev_ofp_port)) { | |
8674 | struct vlan_splinter *vsp; | |
8675 | ||
8676 | vsp = xmalloc(sizeof *vsp); | |
8677 | hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node, | |
8678 | hash_int(port->up.ofp_port, 0)); | |
8679 | hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node, | |
8680 | hash_realdev_vid(realdev_ofp_port, vid)); | |
8681 | vsp->realdev_ofp_port = realdev_ofp_port; | |
8682 | vsp->vlandev_ofp_port = port->up.ofp_port; | |
8683 | vsp->vid = vid; | |
8684 | ||
8685 | port->realdev_ofp_port = realdev_ofp_port; | |
8686 | } else { | |
8687 | VLOG_ERR("duplicate vlan device record"); | |
8688 | } | |
8689 | } | |
e1b1d06a JP |
8690 | |
8691 | static uint32_t | |
8692 | ofp_port_to_odp_port(const struct ofproto_dpif *ofproto, uint16_t ofp_port) | |
8693 | { | |
8694 | const struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port); | |
8695 | return ofport ? ofport->odp_port : OVSP_NONE; | |
8696 | } | |
8697 | ||
acf60855 JP |
8698 | static struct ofport_dpif * |
8699 | odp_port_to_ofport(const struct dpif_backer *backer, uint32_t odp_port) | |
e1b1d06a JP |
8700 | { |
8701 | struct ofport_dpif *port; | |
8702 | ||
8703 | HMAP_FOR_EACH_IN_BUCKET (port, odp_port_node, | |
8704 | hash_int(odp_port, 0), | |
acf60855 | 8705 | &backer->odp_to_ofport_map) { |
e1b1d06a | 8706 | if (port->odp_port == odp_port) { |
acf60855 | 8707 | return port; |
e1b1d06a JP |
8708 | } |
8709 | } | |
8710 | ||
acf60855 JP |
8711 | return NULL; |
8712 | } | |
8713 | ||
8714 | static uint16_t | |
8715 | odp_port_to_ofp_port(const struct ofproto_dpif *ofproto, uint32_t odp_port) | |
8716 | { | |
8717 | struct ofport_dpif *port; | |
8718 | ||
8719 | port = odp_port_to_ofport(ofproto->backer, odp_port); | |
6472ba11 | 8720 | if (port && &ofproto->up == port->up.ofproto) { |
acf60855 JP |
8721 | return port->up.ofp_port; |
8722 | } else { | |
8723 | return OFPP_NONE; | |
8724 | } | |
e1b1d06a | 8725 | } |
655ab909 AZ |
8726 | static unsigned long long int |
8727 | avg_subfacet_life_span(const struct ofproto_dpif *ofproto) | |
8728 | { | |
8729 | unsigned long long int dc; | |
8730 | unsigned long long int avg; | |
8731 | ||
8732 | dc = ofproto->total_subfacet_del_count + ofproto->subfacet_del_count; | |
8733 | avg = dc ? ofproto->total_subfacet_life_span / dc : 0; | |
8734 | ||
8735 | return avg; | |
8736 | } | |
8737 | ||
8738 | static double | |
8739 | avg_subfacet_count(const struct ofproto_dpif *ofproto) | |
8740 | { | |
8741 | double avg_c = 0.0; | |
8742 | ||
8743 | if (ofproto->n_update_stats) { | |
8744 | avg_c = (double)ofproto->total_subfacet_count | |
8745 | / ofproto->n_update_stats; | |
8746 | } | |
8747 | ||
8748 | return avg_c; | |
8749 | } | |
8750 | ||
8751 | static void | |
8752 | show_dp_rates(struct ds *ds, const char *heading, | |
8753 | const struct avg_subfacet_rates *rates) | |
8754 | { | |
8755 | ds_put_format(ds, "%s add rate: %5.3f/min, del rate: %5.3f/min\n", | |
8756 | heading, rates->add_rate, rates->del_rate); | |
8757 | } | |
8758 | ||
8759 | static void | |
8760 | update_max_subfacet_count(struct ofproto_dpif *ofproto) | |
8761 | { | |
8762 | ofproto->max_n_subfacet = MAX(ofproto->max_n_subfacet, | |
8763 | hmap_count(&ofproto->subfacets)); | |
8764 | } | |
8765 | ||
8766 | /* Compute exponentially weighted moving average, adding 'new' as the newest, | |
8767 | * most heavily weighted element. 'base' designates the rate of decay: after | |
8768 | * 'base' further updates, 'new''s weight in the EWMA decays to about 1/e | |
8769 | * (about .37). */ | |
8770 | static void | |
8771 | exp_mavg(double *avg, int base, double new) | |
8772 | { | |
8773 | *avg = (*avg * (base - 1) + new) / base; | |
8774 | } | |
8775 | ||
8776 | static void | |
8777 | update_moving_averages(struct ofproto_dpif *ofproto) | |
8778 | { | |
8779 | const int min_ms = 60 * 1000; /* milliseconds in one minute. */ | |
8780 | ||
8781 | /* Update hourly averages on the minute boundaries. */ | |
8782 | if (time_msec() - ofproto->last_minute >= min_ms) { | |
8783 | exp_mavg(&ofproto->hourly.add_rate, 60, ofproto->subfacet_add_count); | |
8784 | exp_mavg(&ofproto->hourly.del_rate, 60, ofproto->subfacet_del_count); | |
8785 | ||
8786 | /* Update daily averages on the hour boundaries. */ | |
8787 | if ((ofproto->last_minute - ofproto->created) / min_ms % 60 == 59) { | |
8788 | exp_mavg(&ofproto->daily.add_rate, 24, ofproto->hourly.add_rate); | |
8789 | exp_mavg(&ofproto->daily.del_rate, 24, ofproto->hourly.del_rate); | |
8790 | } | |
8791 | ||
8792 | ofproto->total_subfacet_add_count += ofproto->subfacet_add_count; | |
8793 | ofproto->total_subfacet_del_count += ofproto->subfacet_del_count; | |
8794 | ofproto->subfacet_add_count = 0; | |
8795 | ofproto->subfacet_del_count = 0; | |
8796 | ofproto->last_minute += min_ms; | |
8797 | } | |
8798 | } | |
e1b1d06a | 8799 | |
abe529af | 8800 | const struct ofproto_class ofproto_dpif_class = { |
b0408fca | 8801 | init, |
abe529af BP |
8802 | enumerate_types, |
8803 | enumerate_names, | |
8804 | del, | |
0aeaabc8 | 8805 | port_open_type, |
acf60855 JP |
8806 | type_run, |
8807 | type_run_fast, | |
8808 | type_wait, | |
abe529af BP |
8809 | alloc, |
8810 | construct, | |
8811 | destruct, | |
8812 | dealloc, | |
8813 | run, | |
5fcc0d00 | 8814 | run_fast, |
abe529af | 8815 | wait, |
0d085684 | 8816 | get_memory_usage, |
abe529af | 8817 | flush, |
6c1491fb BP |
8818 | get_features, |
8819 | get_tables, | |
abe529af BP |
8820 | port_alloc, |
8821 | port_construct, | |
8822 | port_destruct, | |
8823 | port_dealloc, | |
8824 | port_modified, | |
8825 | port_reconfigured, | |
8826 | port_query_by_name, | |
8827 | port_add, | |
8828 | port_del, | |
6527c598 | 8829 | port_get_stats, |
abe529af BP |
8830 | port_dump_start, |
8831 | port_dump_next, | |
8832 | port_dump_done, | |
8833 | port_poll, | |
8834 | port_poll_wait, | |
8835 | port_is_lacp_current, | |
0ab6decf | 8836 | NULL, /* rule_choose_table */ |
abe529af BP |
8837 | rule_alloc, |
8838 | rule_construct, | |
8839 | rule_destruct, | |
8840 | rule_dealloc, | |
abe529af BP |
8841 | rule_get_stats, |
8842 | rule_execute, | |
8843 | rule_modify_actions, | |
7257b535 | 8844 | set_frag_handling, |
abe529af BP |
8845 | packet_out, |
8846 | set_netflow, | |
8847 | get_netflow_ids, | |
8848 | set_sflow, | |
29089a54 | 8849 | set_ipfix, |
abe529af | 8850 | set_cfm, |
9a9e3786 | 8851 | get_cfm_status, |
ccc09689 EJ |
8852 | set_bfd, |
8853 | get_bfd_status, | |
21f7563c JP |
8854 | set_stp, |
8855 | get_stp_status, | |
8856 | set_stp_port, | |
8857 | get_stp_port_status, | |
8b36f51e | 8858 | set_queues, |
abe529af BP |
8859 | bundle_set, |
8860 | bundle_remove, | |
8861 | mirror_set, | |
9d24de3b | 8862 | mirror_get_stats, |
abe529af BP |
8863 | set_flood_vlans, |
8864 | is_mirror_output_bundle, | |
8402c74b | 8865 | forward_bpdu_changed, |
c4069512 | 8866 | set_mac_table_config, |
52a90c29 | 8867 | set_realdev, |
abe529af | 8868 | }; |