2 * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
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:
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include "ofproto/ofproto-dpif.h"
20 #include "ofproto/ofproto-provider.h"
27 #include "byte-order.h"
32 #include "dynamic-string.h"
33 #include "fail-open.h"
34 #include "guarded-list.h"
38 #include "mac-learning.h"
39 #include "meta-flow.h"
40 #include "multipath.h"
41 #include "netdev-vport.h"
46 #include "odp-execute.h"
49 #include "ofp-actions.h"
50 #include "ofp-parse.h"
51 #include "ofp-print.h"
52 #include "ofproto-dpif-governor.h"
53 #include "ofproto-dpif-ipfix.h"
54 #include "ofproto-dpif-mirror.h"
55 #include "ofproto-dpif-monitor.h"
56 #include "ofproto-dpif-sflow.h"
57 #include "ofproto-dpif-upcall.h"
58 #include "ofproto-dpif-xlate.h"
59 #include "poll-loop.h"
64 #include "unaligned.h"
66 #include "vlan-bitmap.h"
69 VLOG_DEFINE_THIS_MODULE(ofproto_dpif);
71 COVERAGE_DEFINE(ofproto_dpif_expired);
72 COVERAGE_DEFINE(facet_revalidate);
73 COVERAGE_DEFINE(facet_unexpected);
74 COVERAGE_DEFINE(facet_create);
75 COVERAGE_DEFINE(facet_remove);
76 COVERAGE_DEFINE(subfacet_create);
77 COVERAGE_DEFINE(subfacet_destroy);
78 COVERAGE_DEFINE(subfacet_install_fail);
79 COVERAGE_DEFINE(packet_in_overflow);
81 /* Number of implemented OpenFlow tables. */
82 enum { N_TABLES = 255 };
83 enum { TBL_INTERNAL = N_TABLES - 1 }; /* Used for internal hidden rules. */
84 BUILD_ASSERT_DECL(N_TABLES >= 2 && N_TABLES <= 255);
94 * - Do include packets and bytes from facets that have been deleted or
95 * whose own statistics have been folded into the rule.
97 * - Do include packets and bytes sent "by hand" that were accounted to
98 * the rule without any facet being involved (this is a rare corner
99 * case in rule_execute()).
101 * - Do not include packet or bytes that can be obtained from any facet's
102 * packet_count or byte_count member or that can be obtained from the
103 * datapath by, e.g., dpif_flow_get() for any subfacet.
105 struct ovs_mutex stats_mutex;
106 uint64_t packet_count OVS_GUARDED; /* Number of packets received. */
107 uint64_t byte_count OVS_GUARDED; /* Number of bytes received. */
110 static void rule_get_stats(struct rule *, uint64_t *packets, uint64_t *bytes);
111 static struct rule_dpif *rule_dpif_cast(const struct rule *);
118 * - Do include packets and bytes from facets that have been deleted or
119 * whose own statistics have been folded into the rule.
121 * - Do include packets and bytes sent "by hand" that were accounted to
122 * the rule without any facet being involved (this is a rare corner
123 * case in rule_execute()).
125 * - Do not include packet or bytes that can be obtained from any facet's
126 * packet_count or byte_count member or that can be obtained from the
127 * datapath by, e.g., dpif_flow_get() for any subfacet.
129 struct ovs_mutex stats_mutex;
130 uint64_t packet_count OVS_GUARDED; /* Number of packets received. */
131 uint64_t byte_count OVS_GUARDED; /* Number of bytes received. */
132 struct bucket_counter *bucket_stats OVS_GUARDED; /* Bucket statistics. */
136 struct hmap_node hmap_node; /* In struct ofproto's "bundles" hmap. */
137 struct ofproto_dpif *ofproto; /* Owning ofproto. */
138 void *aux; /* Key supplied by ofproto's client. */
139 char *name; /* Identifier for log messages. */
142 struct list ports; /* Contains "struct ofport"s. */
143 enum port_vlan_mode vlan_mode; /* VLAN mode */
144 int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */
145 unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1.
146 * NULL if all VLANs are trunked. */
147 struct lacp *lacp; /* LACP if LACP is enabled, otherwise NULL. */
148 struct bond *bond; /* Nonnull iff more than one port. */
149 bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */
152 bool floodable; /* True if no port has OFPUTIL_PC_NO_FLOOD set. */
155 static void bundle_remove(struct ofport *);
156 static void bundle_update(struct ofbundle *);
157 static void bundle_destroy(struct ofbundle *);
158 static void bundle_del_port(struct ofport_dpif *);
159 static void bundle_run(struct ofbundle *);
160 static void bundle_wait(struct ofbundle *);
162 static void stp_run(struct ofproto_dpif *ofproto);
163 static void stp_wait(struct ofproto_dpif *ofproto);
164 static int set_stp_port(struct ofport *,
165 const struct ofproto_port_stp_settings *);
167 static void compose_slow_path(const struct ofproto_dpif *, const struct flow *,
168 enum slow_path_reason,
169 uint64_t *stub, size_t stub_size,
170 const struct nlattr **actionsp,
171 size_t *actions_lenp);
173 /* A subfacet (see "struct subfacet" below) has three possible installation
176 * - SF_NOT_INSTALLED: Not installed in the datapath. This will only be the
177 * case just after the subfacet is created, just before the subfacet is
178 * destroyed, or if the datapath returns an error when we try to install a
181 * - SF_FAST_PATH: The subfacet's actions are installed in the datapath.
183 * - SF_SLOW_PATH: An action that sends every packet for the subfacet through
184 * ofproto_dpif is installed in the datapath.
187 SF_NOT_INSTALLED, /* No datapath flow for this subfacet. */
188 SF_FAST_PATH, /* Full actions are installed. */
189 SF_SLOW_PATH, /* Send-to-userspace action is installed. */
192 /* A dpif flow and actions associated with a facet.
194 * See also the large comment on struct facet. */
197 struct hmap_node hmap_node; /* In struct ofproto_dpif 'subfacets' list. */
198 struct list list_node; /* In struct facet's 'facets' list. */
199 struct facet *facet; /* Owning facet. */
200 struct dpif_backer *backer; /* Owning backer. */
205 long long int used; /* Time last used; time created if not used. */
206 long long int created; /* Time created. */
208 uint64_t dp_packet_count; /* Last known packet count in the datapath. */
209 uint64_t dp_byte_count; /* Last known byte count in the datapath. */
211 enum subfacet_path path; /* Installed in datapath? */
214 #define SUBFACET_DESTROY_MAX_BATCH 50
216 static struct subfacet *subfacet_create(struct facet *, struct flow_miss *);
217 static struct subfacet *subfacet_find(struct dpif_backer *,
218 const struct nlattr *key, size_t key_len,
220 static void subfacet_destroy(struct subfacet *);
221 static void subfacet_destroy__(struct subfacet *);
222 static void subfacet_destroy_batch(struct dpif_backer *,
223 struct subfacet **, int n);
224 static void subfacet_reset_dp_stats(struct subfacet *,
225 struct dpif_flow_stats *);
226 static void subfacet_update_stats(struct subfacet *,
227 const struct dpif_flow_stats *);
228 static int subfacet_install(struct subfacet *,
229 const struct ofpbuf *odp_actions,
230 struct dpif_flow_stats *);
231 static void subfacet_uninstall(struct subfacet *);
233 /* A unique, non-overlapping instantiation of an OpenFlow flow.
235 * A facet associates a "struct flow", which represents the Open vSwitch
236 * userspace idea of an exact-match flow, with one or more subfacets.
237 * While the facet is created based on an exact-match flow, it is stored
238 * within the ofproto based on the wildcards that could be expressed
239 * based on the flow table and other configuration. (See the 'wc'
240 * description in "struct xlate_out" for more details.)
242 * Each subfacet tracks the datapath's idea of the flow equivalent to
243 * the facet. When the kernel module (or other dpif implementation) and
244 * Open vSwitch userspace agree on the definition of a flow key, there
245 * is exactly one subfacet per facet. If the dpif implementation
246 * supports more-specific flow matching than userspace, however, a facet
247 * can have more than one subfacet. Examples include the dpif
248 * implementation not supporting the same wildcards as userspace or some
249 * distinction in flow that userspace simply doesn't understand.
251 * Flow expiration works in terms of subfacets, so a facet must have at
252 * least one subfacet or it will never expire, leaking memory. */
255 struct ofproto_dpif *ofproto;
258 struct list subfacets;
259 long long int used; /* Time last used; time created if not used. */
262 struct flow flow; /* Flow of the creating subfacet. */
263 struct cls_rule cr; /* In 'ofproto_dpif's facets classifier. */
267 * - Do include packets and bytes sent "by hand", e.g. with
270 * - Do include packets and bytes that were obtained from the datapath
271 * when a subfacet's statistics were reset (e.g. dpif_flow_put() with
272 * DPIF_FP_ZERO_STATS).
274 * - Do not include packets or bytes that can be obtained from the
275 * datapath for any existing subfacet.
277 uint64_t packet_count; /* Number of packets received. */
278 uint64_t byte_count; /* Number of bytes received. */
280 /* Resubmit statistics. */
281 uint64_t prev_packet_count; /* Number of packets from last stats push. */
282 uint64_t prev_byte_count; /* Number of bytes from last stats push. */
283 long long int prev_used; /* Used time from last stats push. */
286 uint64_t accounted_bytes; /* Bytes processed by facet_account(). */
287 struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */
288 uint16_t tcp_flags; /* TCP flags seen for this 'rule'. */
290 struct xlate_out xout;
292 /* Storage for a single subfacet, to reduce malloc() time and space
293 * overhead. (A facet always has at least one subfacet and in the common
294 * case has exactly one subfacet. However, 'one_subfacet' may not
295 * always be valid, since it could have been removed after newer
296 * subfacets were pushed onto the 'subfacets' list.) */
297 struct subfacet one_subfacet;
299 long long int learn_rl; /* Rate limiter for facet_learn(). */
302 static struct facet *facet_create(const struct flow_miss *);
303 static void facet_remove(struct facet *);
304 static void facet_free(struct facet *);
306 static struct facet *facet_find(struct ofproto_dpif *, const struct flow *);
307 static struct facet *facet_lookup_valid(struct ofproto_dpif *,
308 const struct flow *);
309 static bool facet_revalidate(struct facet *);
310 static bool facet_check_consistency(struct facet *);
312 static void facet_flush_stats(struct facet *);
314 static void facet_reset_counters(struct facet *);
315 static void flow_push_stats(struct ofproto_dpif *, struct flow *,
316 struct dpif_flow_stats *, bool may_learn);
317 static void facet_push_stats(struct facet *, bool may_learn);
318 static void facet_learn(struct facet *);
319 static void facet_account(struct facet *);
320 static void push_all_stats(void);
322 static bool facet_is_controller_flow(struct facet *);
325 struct hmap_node odp_port_node; /* In dpif_backer's "odp_to_ofport_map". */
329 struct ofbundle *bundle; /* Bundle that contains this port, if any. */
330 struct list bundle_node; /* In struct ofbundle's "ports" list. */
331 struct cfm *cfm; /* Connectivity Fault Management, if any. */
332 struct bfd *bfd; /* BFD, if any. */
333 bool may_enable; /* May be enabled in bonds. */
334 bool is_tunnel; /* This port is a tunnel. */
335 long long int carrier_seq; /* Carrier status changes. */
336 struct ofport_dpif *peer; /* Peer if patch port. */
339 struct stp_port *stp_port; /* Spanning Tree Protocol, if any. */
340 enum stp_state stp_state; /* Always STP_DISABLED if STP not in use. */
341 long long int stp_state_entered;
343 /* Queue to DSCP mapping. */
344 struct ofproto_port_queue *qdscp;
347 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
349 * This is deprecated. It is only for compatibility with broken device
350 * drivers in old versions of Linux that do not properly support VLANs when
351 * VLAN devices are not used. When broken device drivers are no longer in
352 * widespread use, we will delete these interfaces. */
353 ofp_port_t realdev_ofp_port;
357 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
359 * This is deprecated. It is only for compatibility with broken device drivers
360 * in old versions of Linux that do not properly support VLANs when VLAN
361 * devices are not used. When broken device drivers are no longer in
362 * widespread use, we will delete these interfaces. */
363 struct vlan_splinter {
364 struct hmap_node realdev_vid_node;
365 struct hmap_node vlandev_node;
366 ofp_port_t realdev_ofp_port;
367 ofp_port_t vlandev_ofp_port;
371 static void vsp_remove(struct ofport_dpif *);
372 static void vsp_add(struct ofport_dpif *, ofp_port_t realdev_ofp_port, int vid);
374 static odp_port_t ofp_port_to_odp_port(const struct ofproto_dpif *,
377 static ofp_port_t odp_port_to_ofp_port(const struct ofproto_dpif *,
380 static struct ofport_dpif *
381 ofport_dpif_cast(const struct ofport *ofport)
383 return ofport ? CONTAINER_OF(ofport, struct ofport_dpif, up) : NULL;
386 static void port_run(struct ofport_dpif *);
387 static int set_bfd(struct ofport *, const struct smap *);
388 static int set_cfm(struct ofport *, const struct cfm_settings *);
389 static void ofport_update_peer(struct ofport_dpif *);
390 static void run_fast_rl(void);
391 static int run_fast(struct ofproto *);
393 struct dpif_completion {
394 struct list list_node;
395 struct ofoperation *op;
398 /* Reasons that we might need to revalidate every facet, and corresponding
401 * A value of 0 means that there is no need to revalidate.
403 * It would be nice to have some cleaner way to integrate with coverage
404 * counters, but with only a few reasons I guess this is good enough for
406 enum revalidate_reason {
407 REV_RECONFIGURE = 1, /* Switch configuration changed. */
408 REV_STP, /* Spanning tree protocol port status change. */
409 REV_BOND, /* Bonding changed. */
410 REV_PORT_TOGGLED, /* Port enabled or disabled by CFM, LACP, ...*/
411 REV_FLOW_TABLE, /* Flow table changed. */
412 REV_MAC_LEARNING, /* Mac learning changed. */
413 REV_INCONSISTENCY /* Facet self-check failed. */
415 COVERAGE_DEFINE(rev_reconfigure);
416 COVERAGE_DEFINE(rev_stp);
417 COVERAGE_DEFINE(rev_bond);
418 COVERAGE_DEFINE(rev_port_toggled);
419 COVERAGE_DEFINE(rev_flow_table);
420 COVERAGE_DEFINE(rev_mac_learning);
421 COVERAGE_DEFINE(rev_inconsistency);
423 struct avg_subfacet_rates {
424 double add_rate; /* Moving average of new flows created per minute. */
425 double del_rate; /* Moving average of flows deleted per minute. */
428 /* All datapaths of a given type share a single dpif backer instance. */
434 struct timer next_expiration;
436 struct ovs_rwlock odp_to_ofport_lock;
437 struct hmap odp_to_ofport_map OVS_GUARDED; /* ODP port to ofport map. */
439 struct simap tnl_backers; /* Set of dpif ports backing tunnels. */
441 /* Facet revalidation flags applying to facets which use this backer. */
442 enum revalidate_reason need_revalidate; /* Revalidate every facet. */
444 struct hmap drop_keys; /* Set of dropped odp keys. */
445 bool recv_set_enable; /* Enables or disables receiving packets. */
447 struct hmap subfacets;
448 struct governor *governor;
450 /* Subfacet statistics.
452 * These keep track of the total number of subfacets added and deleted and
453 * flow life span. They are useful for computing the flow rates stats
454 * exposed via "ovs-appctl dpif/show". The goal is to learn about
455 * traffic patterns in ways that we can use later to improve Open vSwitch
456 * performance in new situations. */
457 long long int created; /* Time when it is created. */
458 unsigned max_n_subfacet; /* Maximum number of flows */
459 unsigned avg_n_subfacet; /* Average number of flows. */
460 long long int avg_subfacet_life; /* Average life span of subfacets. */
462 /* Number of upcall handling threads. */
463 unsigned int n_handler_threads;
466 /* All existing ofproto_backer instances, indexed by ofproto->up.type. */
467 static struct shash all_dpif_backers = SHASH_INITIALIZER(&all_dpif_backers);
469 static void drop_key_clear(struct dpif_backer *);
471 struct ofproto_dpif {
472 struct hmap_node all_ofproto_dpifs_node; /* In 'all_ofproto_dpifs'. */
474 struct dpif_backer *backer;
476 /* Special OpenFlow rules. */
477 struct rule_dpif *miss_rule; /* Sends flow table misses to controller. */
478 struct rule_dpif *no_packet_in_rule; /* Drops flow table misses. */
479 struct rule_dpif *drop_frags_rule; /* Used in OFPC_FRAG_DROP mode. */
482 struct netflow *netflow;
483 struct dpif_sflow *sflow;
484 struct dpif_ipfix *ipfix;
485 struct hmap bundles; /* Contains "struct ofbundle"s. */
486 struct mac_learning *ml;
487 bool has_bonded_bundles;
488 struct mbridge *mbridge;
491 struct classifier facets; /* Contains 'struct facet's. */
492 long long int consistency_rl;
494 struct ovs_mutex stats_mutex;
495 struct netdev_stats stats OVS_GUARDED; /* To account packets generated and
496 * consumed in userspace. */
500 long long int stp_last_tick;
502 /* VLAN splinters. */
503 struct ovs_mutex vsp_mutex;
504 struct hmap realdev_vid_map OVS_GUARDED; /* (realdev,vid) -> vlandev. */
505 struct hmap vlandev_map OVS_GUARDED; /* vlandev -> (realdev,vid). */
508 struct sset ports; /* Set of standard port names. */
509 struct sset ghost_ports; /* Ports with no datapath port. */
510 struct sset port_poll_set; /* Queued names for port_poll() reply. */
511 int port_poll_errno; /* Last errno for port_poll() reply. */
513 /* Per ofproto's dpif stats. */
518 struct guarded_list pins; /* Contains "struct ofputil_packet_in"s. */
521 /* By default, flows in the datapath are wildcarded (megaflows). They
522 * may be disabled with the "ovs-appctl dpif/disable-megaflows" command. */
523 static bool enable_megaflows = true;
525 /* All existing ofproto_dpif instances, indexed by ->up.name. */
526 static struct hmap all_ofproto_dpifs = HMAP_INITIALIZER(&all_ofproto_dpifs);
528 static void ofproto_dpif_unixctl_init(void);
530 static inline struct ofproto_dpif *
531 ofproto_dpif_cast(const struct ofproto *ofproto)
533 ovs_assert(ofproto->ofproto_class == &ofproto_dpif_class);
534 return CONTAINER_OF(ofproto, struct ofproto_dpif, up);
537 static struct ofport_dpif *get_ofp_port(const struct ofproto_dpif *ofproto,
538 ofp_port_t ofp_port);
539 static void ofproto_trace(struct ofproto_dpif *, const struct flow *,
540 const struct ofpbuf *packet,
541 const struct ofpact[], size_t ofpacts_len,
545 static void handle_upcalls(struct dpif_backer *);
547 /* Flow expiration. */
548 static int expire(struct dpif_backer *);
551 static void send_netflow_active_timeouts(struct ofproto_dpif *);
553 /* Global variables. */
554 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
556 /* Initial mappings of port to bridge mappings. */
557 static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports);
559 /* Executes 'fm'. The caller retains ownership of 'fm' and everything in
562 ofproto_dpif_flow_mod(struct ofproto_dpif *ofproto,
563 struct ofputil_flow_mod *fm)
565 ofproto_flow_mod(&ofproto->up, fm);
568 /* Appends 'pin' to the queue of "packet ins" to be sent to the controller.
569 * Takes ownership of 'pin' and pin->packet. */
571 ofproto_dpif_send_packet_in(struct ofproto_dpif *ofproto,
572 struct ofproto_packet_in *pin)
574 if (!guarded_list_push_back(&ofproto->pins, &pin->list_node, 1024)) {
575 COVERAGE_INC(packet_in_overflow);
576 free(CONST_CAST(void *, pin->up.packet));
581 /* Factory functions. */
584 init(const struct shash *iface_hints)
586 struct shash_node *node;
588 /* Make a local copy, since we don't own 'iface_hints' elements. */
589 SHASH_FOR_EACH(node, iface_hints) {
590 const struct iface_hint *orig_hint = node->data;
591 struct iface_hint *new_hint = xmalloc(sizeof *new_hint);
593 new_hint->br_name = xstrdup(orig_hint->br_name);
594 new_hint->br_type = xstrdup(orig_hint->br_type);
595 new_hint->ofp_port = orig_hint->ofp_port;
597 shash_add(&init_ofp_ports, node->name, new_hint);
602 enumerate_types(struct sset *types)
604 dp_enumerate_types(types);
608 enumerate_names(const char *type, struct sset *names)
610 struct ofproto_dpif *ofproto;
613 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
614 if (strcmp(type, ofproto->up.type)) {
617 sset_add(names, ofproto->up.name);
624 del(const char *type, const char *name)
629 error = dpif_open(name, type, &dpif);
631 error = dpif_delete(dpif);
638 port_open_type(const char *datapath_type, const char *port_type)
640 return dpif_port_open_type(datapath_type, port_type);
643 /* Type functions. */
645 static void process_dpif_port_changes(struct dpif_backer *);
646 static void process_dpif_all_ports_changed(struct dpif_backer *);
647 static void process_dpif_port_change(struct dpif_backer *,
648 const char *devname);
649 static void process_dpif_port_error(struct dpif_backer *, int error);
651 static struct ofproto_dpif *
652 lookup_ofproto_dpif_by_port_name(const char *name)
654 struct ofproto_dpif *ofproto;
656 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
657 if (sset_contains(&ofproto->ports, name)) {
666 type_run(const char *type)
668 static long long int push_timer = LLONG_MIN;
669 struct dpif_backer *backer;
671 backer = shash_find_data(&all_dpif_backers, type);
673 /* This is not necessarily a problem, since backers are only
674 * created on demand. */
678 dpif_run(backer->dpif);
680 /* The most natural place to push facet statistics is when they're pulled
681 * from the datapath. However, when there are many flows in the datapath,
682 * this expensive operation can occur so frequently, that it reduces our
683 * ability to quickly set up flows. To reduce the cost, we push statistics
685 if (time_msec() > push_timer) {
686 push_timer = time_msec() + 2000;
690 /* If vswitchd started with other_config:flow_restore_wait set as "true",
691 * and the configuration has now changed to "false", enable receiving
692 * packets from the datapath. */
693 if (!backer->recv_set_enable && !ofproto_get_flow_restore_wait()) {
696 backer->recv_set_enable = true;
698 error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
700 udpif_recv_set(backer->udpif, 0, false);
701 VLOG_ERR("Failed to enable receiving packets in dpif.");
704 udpif_recv_set(backer->udpif, n_handler_threads,
705 backer->recv_set_enable);
706 dpif_flow_flush(backer->dpif);
707 backer->need_revalidate = REV_RECONFIGURE;
710 /* If the n_handler_threads is reconfigured, call udpif_recv_set()
711 * to reset the handler threads. */
712 if (backer->n_handler_threads != n_handler_threads) {
713 udpif_recv_set(backer->udpif, n_handler_threads,
714 backer->recv_set_enable);
715 backer->n_handler_threads = n_handler_threads;
718 if (backer->need_revalidate) {
719 struct ofproto_dpif *ofproto;
720 struct simap_node *node;
721 struct simap tmp_backers;
723 /* Handle tunnel garbage collection. */
724 simap_init(&tmp_backers);
725 simap_swap(&backer->tnl_backers, &tmp_backers);
727 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
728 struct ofport_dpif *iter;
730 if (backer != ofproto->backer) {
734 HMAP_FOR_EACH (iter, up.hmap_node, &ofproto->up.ports) {
735 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
738 if (!iter->is_tunnel) {
742 dp_port = netdev_vport_get_dpif_port(iter->up.netdev,
743 namebuf, sizeof namebuf);
744 node = simap_find(&tmp_backers, dp_port);
746 simap_put(&backer->tnl_backers, dp_port, node->data);
747 simap_delete(&tmp_backers, node);
748 node = simap_find(&backer->tnl_backers, dp_port);
750 node = simap_find(&backer->tnl_backers, dp_port);
752 odp_port_t odp_port = ODPP_NONE;
754 if (!dpif_port_add(backer->dpif, iter->up.netdev,
756 simap_put(&backer->tnl_backers, dp_port,
757 odp_to_u32(odp_port));
758 node = simap_find(&backer->tnl_backers, dp_port);
763 iter->odp_port = node ? u32_to_odp(node->data) : ODPP_NONE;
764 if (tnl_port_reconfigure(iter, iter->up.netdev,
766 backer->need_revalidate = REV_RECONFIGURE;
771 SIMAP_FOR_EACH (node, &tmp_backers) {
772 dpif_port_del(backer->dpif, u32_to_odp(node->data));
774 simap_destroy(&tmp_backers);
776 switch (backer->need_revalidate) {
777 case REV_RECONFIGURE: COVERAGE_INC(rev_reconfigure); break;
778 case REV_STP: COVERAGE_INC(rev_stp); break;
779 case REV_BOND: COVERAGE_INC(rev_bond); break;
780 case REV_PORT_TOGGLED: COVERAGE_INC(rev_port_toggled); break;
781 case REV_FLOW_TABLE: COVERAGE_INC(rev_flow_table); break;
782 case REV_MAC_LEARNING: COVERAGE_INC(rev_mac_learning); break;
783 case REV_INCONSISTENCY: COVERAGE_INC(rev_inconsistency); break;
785 backer->need_revalidate = 0;
787 /* Clear the drop_keys in case we should now be accepting some
788 * formerly dropped flows. */
789 drop_key_clear(backer);
791 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
792 struct facet *facet, *next;
793 struct ofport_dpif *ofport;
794 struct cls_cursor cursor;
795 struct ofbundle *bundle;
797 if (ofproto->backer != backer) {
801 ovs_rwlock_wrlock(&xlate_rwlock);
802 xlate_ofproto_set(ofproto, ofproto->up.name,
803 ofproto->backer->dpif, ofproto->miss_rule,
804 ofproto->no_packet_in_rule, ofproto->ml,
805 ofproto->stp, ofproto->mbridge,
806 ofproto->sflow, ofproto->ipfix,
807 ofproto->up.frag_handling,
808 ofproto->up.forward_bpdu,
809 connmgr_has_in_band(ofproto->up.connmgr),
810 ofproto->netflow != NULL);
812 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
813 xlate_bundle_set(ofproto, bundle, bundle->name,
814 bundle->vlan_mode, bundle->vlan,
815 bundle->trunks, bundle->use_priority_tags,
816 bundle->bond, bundle->lacp,
820 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
821 int stp_port = ofport->stp_port
822 ? stp_port_no(ofport->stp_port)
824 xlate_ofport_set(ofproto, ofport->bundle, ofport,
825 ofport->up.ofp_port, ofport->odp_port,
826 ofport->up.netdev, ofport->cfm,
827 ofport->bfd, ofport->peer, stp_port,
828 ofport->qdscp, ofport->n_qdscp,
829 ofport->up.pp.config, ofport->up.pp.state,
830 ofport->is_tunnel, ofport->may_enable);
832 ovs_rwlock_unlock(&xlate_rwlock);
834 /* Only ofproto-dpif cares about the facet classifier so we just
835 * lock cls_cursor_init() to appease the thread safety analysis. */
836 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
837 cls_cursor_init(&cursor, &ofproto->facets, NULL);
838 ovs_rwlock_unlock(&ofproto->facets.rwlock);
839 CLS_CURSOR_FOR_EACH_SAFE (facet, next, cr, &cursor) {
840 facet_revalidate(facet);
845 udpif_revalidate(backer->udpif);
848 if (!backer->recv_set_enable) {
849 /* Wake up before a max of 1000ms. */
850 timer_set_duration(&backer->next_expiration, 1000);
851 } else if (timer_expired(&backer->next_expiration)) {
852 int delay = expire(backer);
853 timer_set_duration(&backer->next_expiration, delay);
856 process_dpif_port_changes(backer);
858 if (backer->governor) {
861 governor_run(backer->governor);
863 /* If the governor has shrunk to its minimum size and the number of
864 * subfacets has dwindled, then drop the governor entirely.
866 * For hysteresis, the number of subfacets to drop the governor is
867 * smaller than the number needed to trigger its creation. */
868 n_subfacets = hmap_count(&backer->subfacets);
869 if (n_subfacets * 4 < flow_eviction_threshold
870 && governor_is_idle(backer->governor)) {
871 governor_destroy(backer->governor);
872 backer->governor = NULL;
879 /* Check for and handle port changes in 'backer''s dpif. */
881 process_dpif_port_changes(struct dpif_backer *backer)
887 error = dpif_port_poll(backer->dpif, &devname);
893 process_dpif_all_ports_changed(backer);
897 process_dpif_port_change(backer, devname);
902 process_dpif_port_error(backer, error);
909 process_dpif_all_ports_changed(struct dpif_backer *backer)
911 struct ofproto_dpif *ofproto;
912 struct dpif_port dpif_port;
913 struct dpif_port_dump dump;
914 struct sset devnames;
917 sset_init(&devnames);
918 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
919 if (ofproto->backer == backer) {
920 struct ofport *ofport;
922 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
923 sset_add(&devnames, netdev_get_name(ofport->netdev));
927 DPIF_PORT_FOR_EACH (&dpif_port, &dump, backer->dpif) {
928 sset_add(&devnames, dpif_port.name);
931 SSET_FOR_EACH (devname, &devnames) {
932 process_dpif_port_change(backer, devname);
934 sset_destroy(&devnames);
938 process_dpif_port_change(struct dpif_backer *backer, const char *devname)
940 struct ofproto_dpif *ofproto;
941 struct dpif_port port;
943 /* Don't report on the datapath's device. */
944 if (!strcmp(devname, dpif_base_name(backer->dpif))) {
948 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node,
949 &all_ofproto_dpifs) {
950 if (simap_contains(&ofproto->backer->tnl_backers, devname)) {
955 ofproto = lookup_ofproto_dpif_by_port_name(devname);
956 if (dpif_port_query_by_name(backer->dpif, devname, &port)) {
957 /* The port was removed. If we know the datapath,
958 * report it through poll_set(). If we don't, it may be
959 * notifying us of a removal we initiated, so ignore it.
960 * If there's a pending ENOBUFS, let it stand, since
961 * everything will be reevaluated. */
962 if (ofproto && ofproto->port_poll_errno != ENOBUFS) {
963 sset_add(&ofproto->port_poll_set, devname);
964 ofproto->port_poll_errno = 0;
966 } else if (!ofproto) {
967 /* The port was added, but we don't know with which
968 * ofproto we should associate it. Delete it. */
969 dpif_port_del(backer->dpif, port.port_no);
971 struct ofport_dpif *ofport;
973 ofport = ofport_dpif_cast(shash_find_data(
974 &ofproto->up.port_by_name, devname));
976 && ofport->odp_port != port.port_no
977 && !odp_port_to_ofport(backer, port.port_no))
979 /* 'ofport''s datapath port number has changed from
980 * 'ofport->odp_port' to 'port.port_no'. Update our internal data
981 * structures to match. */
982 ovs_rwlock_wrlock(&backer->odp_to_ofport_lock);
983 hmap_remove(&backer->odp_to_ofport_map, &ofport->odp_port_node);
984 ofport->odp_port = port.port_no;
985 hmap_insert(&backer->odp_to_ofport_map, &ofport->odp_port_node,
986 hash_odp_port(port.port_no));
987 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
988 backer->need_revalidate = REV_RECONFIGURE;
991 dpif_port_destroy(&port);
994 /* Propagate 'error' to all ofprotos based on 'backer'. */
996 process_dpif_port_error(struct dpif_backer *backer, int error)
998 struct ofproto_dpif *ofproto;
1000 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
1001 if (ofproto->backer == backer) {
1002 sset_clear(&ofproto->port_poll_set);
1003 ofproto->port_poll_errno = error;
1009 dpif_backer_run_fast(struct dpif_backer *backer)
1011 handle_upcalls(backer);
1017 type_run_fast(const char *type)
1019 struct dpif_backer *backer;
1021 backer = shash_find_data(&all_dpif_backers, type);
1023 /* This is not necessarily a problem, since backers are only
1024 * created on demand. */
1028 return dpif_backer_run_fast(backer);
1034 static long long int port_rl = LLONG_MIN;
1036 if (time_msec() >= port_rl) {
1037 struct ofproto_dpif *ofproto;
1039 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
1040 run_fast(&ofproto->up);
1042 port_rl = time_msec() + 200;
1047 type_wait(const char *type)
1049 struct dpif_backer *backer;
1051 backer = shash_find_data(&all_dpif_backers, type);
1053 /* This is not necessarily a problem, since backers are only
1054 * created on demand. */
1058 if (backer->governor) {
1059 governor_wait(backer->governor);
1062 timer_wait(&backer->next_expiration);
1063 dpif_wait(backer->dpif);
1064 udpif_wait(backer->udpif);
1067 /* Basic life-cycle. */
1069 static int add_internal_flows(struct ofproto_dpif *);
1071 static struct ofproto *
1074 struct ofproto_dpif *ofproto = xmalloc(sizeof *ofproto);
1075 return &ofproto->up;
1079 dealloc(struct ofproto *ofproto_)
1081 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1086 close_dpif_backer(struct dpif_backer *backer)
1088 ovs_assert(backer->refcount > 0);
1090 if (--backer->refcount) {
1094 drop_key_clear(backer);
1095 hmap_destroy(&backer->drop_keys);
1097 udpif_destroy(backer->udpif);
1099 simap_destroy(&backer->tnl_backers);
1100 ovs_rwlock_destroy(&backer->odp_to_ofport_lock);
1101 hmap_destroy(&backer->odp_to_ofport_map);
1102 shash_find_and_delete(&all_dpif_backers, backer->type);
1104 dpif_close(backer->dpif);
1106 ovs_assert(hmap_is_empty(&backer->subfacets));
1107 hmap_destroy(&backer->subfacets);
1108 governor_destroy(backer->governor);
1113 /* Datapath port slated for removal from datapath. */
1114 struct odp_garbage {
1115 struct list list_node;
1116 odp_port_t odp_port;
1120 open_dpif_backer(const char *type, struct dpif_backer **backerp)
1122 struct dpif_backer *backer;
1123 struct dpif_port_dump port_dump;
1124 struct dpif_port port;
1125 struct shash_node *node;
1126 struct list garbage_list;
1127 struct odp_garbage *garbage, *next;
1133 backer = shash_find_data(&all_dpif_backers, type);
1140 backer_name = xasprintf("ovs-%s", type);
1142 /* Remove any existing datapaths, since we assume we're the only
1143 * userspace controlling the datapath. */
1145 dp_enumerate_names(type, &names);
1146 SSET_FOR_EACH(name, &names) {
1147 struct dpif *old_dpif;
1149 /* Don't remove our backer if it exists. */
1150 if (!strcmp(name, backer_name)) {
1154 if (dpif_open(name, type, &old_dpif)) {
1155 VLOG_WARN("couldn't open old datapath %s to remove it", name);
1157 dpif_delete(old_dpif);
1158 dpif_close(old_dpif);
1161 sset_destroy(&names);
1163 backer = xmalloc(sizeof *backer);
1165 error = dpif_create_and_open(backer_name, type, &backer->dpif);
1168 VLOG_ERR("failed to open datapath of type %s: %s", type,
1169 ovs_strerror(error));
1173 backer->udpif = udpif_create(backer, backer->dpif);
1175 backer->type = xstrdup(type);
1176 backer->governor = NULL;
1177 backer->refcount = 1;
1178 hmap_init(&backer->odp_to_ofport_map);
1179 ovs_rwlock_init(&backer->odp_to_ofport_lock);
1180 hmap_init(&backer->drop_keys);
1181 hmap_init(&backer->subfacets);
1182 timer_set_duration(&backer->next_expiration, 1000);
1183 backer->need_revalidate = 0;
1184 simap_init(&backer->tnl_backers);
1185 backer->recv_set_enable = !ofproto_get_flow_restore_wait();
1188 if (backer->recv_set_enable) {
1189 dpif_flow_flush(backer->dpif);
1192 /* Loop through the ports already on the datapath and remove any
1193 * that we don't need anymore. */
1194 list_init(&garbage_list);
1195 dpif_port_dump_start(&port_dump, backer->dpif);
1196 while (dpif_port_dump_next(&port_dump, &port)) {
1197 node = shash_find(&init_ofp_ports, port.name);
1198 if (!node && strcmp(port.name, dpif_base_name(backer->dpif))) {
1199 garbage = xmalloc(sizeof *garbage);
1200 garbage->odp_port = port.port_no;
1201 list_push_front(&garbage_list, &garbage->list_node);
1204 dpif_port_dump_done(&port_dump);
1206 LIST_FOR_EACH_SAFE (garbage, next, list_node, &garbage_list) {
1207 dpif_port_del(backer->dpif, garbage->odp_port);
1208 list_remove(&garbage->list_node);
1212 shash_add(&all_dpif_backers, type, backer);
1214 error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
1216 VLOG_ERR("failed to listen on datapath of type %s: %s",
1217 type, ovs_strerror(error));
1218 close_dpif_backer(backer);
1221 udpif_recv_set(backer->udpif, n_handler_threads,
1222 backer->recv_set_enable);
1223 backer->n_handler_threads = n_handler_threads;
1225 backer->max_n_subfacet = 0;
1226 backer->created = time_msec();
1227 backer->avg_n_subfacet = 0;
1228 backer->avg_subfacet_life = 0;
1234 construct(struct ofproto *ofproto_)
1236 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1237 struct shash_node *node, *next;
1240 error = open_dpif_backer(ofproto->up.type, &ofproto->backer);
1245 ofproto->netflow = NULL;
1246 ofproto->sflow = NULL;
1247 ofproto->ipfix = NULL;
1248 ofproto->stp = NULL;
1249 hmap_init(&ofproto->bundles);
1250 ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME);
1251 ofproto->mbridge = mbridge_create();
1252 ofproto->has_bonded_bundles = false;
1253 ovs_mutex_init(&ofproto->stats_mutex);
1254 ovs_mutex_init(&ofproto->vsp_mutex);
1256 classifier_init(&ofproto->facets);
1257 ofproto->consistency_rl = LLONG_MIN;
1259 guarded_list_init(&ofproto->pins);
1261 ofproto_dpif_unixctl_init();
1263 hmap_init(&ofproto->vlandev_map);
1264 hmap_init(&ofproto->realdev_vid_map);
1266 sset_init(&ofproto->ports);
1267 sset_init(&ofproto->ghost_ports);
1268 sset_init(&ofproto->port_poll_set);
1269 ofproto->port_poll_errno = 0;
1271 SHASH_FOR_EACH_SAFE (node, next, &init_ofp_ports) {
1272 struct iface_hint *iface_hint = node->data;
1274 if (!strcmp(iface_hint->br_name, ofproto->up.name)) {
1275 /* Check if the datapath already has this port. */
1276 if (dpif_port_exists(ofproto->backer->dpif, node->name)) {
1277 sset_add(&ofproto->ports, node->name);
1280 free(iface_hint->br_name);
1281 free(iface_hint->br_type);
1283 shash_delete(&init_ofp_ports, node);
1287 hmap_insert(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node,
1288 hash_string(ofproto->up.name, 0));
1289 memset(&ofproto->stats, 0, sizeof ofproto->stats);
1291 ofproto_init_tables(ofproto_, N_TABLES);
1292 error = add_internal_flows(ofproto);
1293 ofproto->up.tables[TBL_INTERNAL].flags = OFTABLE_HIDDEN | OFTABLE_READONLY;
1296 ofproto->n_missed = 0;
1302 add_internal_flow(struct ofproto_dpif *ofproto, int id,
1303 const struct ofpbuf *ofpacts, struct rule_dpif **rulep)
1305 struct ofputil_flow_mod fm;
1308 match_init_catchall(&fm.match);
1310 match_set_reg(&fm.match, 0, id);
1311 fm.new_cookie = htonll(0);
1312 fm.cookie = htonll(0);
1313 fm.cookie_mask = htonll(0);
1314 fm.modify_cookie = false;
1315 fm.table_id = TBL_INTERNAL;
1316 fm.command = OFPFC_ADD;
1317 fm.idle_timeout = 0;
1318 fm.hard_timeout = 0;
1322 fm.ofpacts = ofpacts->data;
1323 fm.ofpacts_len = ofpacts->size;
1325 error = ofproto_flow_mod(&ofproto->up, &fm);
1327 VLOG_ERR_RL(&rl, "failed to add internal flow %d (%s)",
1328 id, ofperr_to_string(error));
1332 if (rule_dpif_lookup_in_table(ofproto, &fm.match.flow, NULL, TBL_INTERNAL,
1334 rule_dpif_unref(*rulep);
1343 add_internal_flows(struct ofproto_dpif *ofproto)
1345 struct ofpact_controller *controller;
1346 uint64_t ofpacts_stub[128 / 8];
1347 struct ofpbuf ofpacts;
1351 ofpbuf_use_stack(&ofpacts, ofpacts_stub, sizeof ofpacts_stub);
1354 controller = ofpact_put_CONTROLLER(&ofpacts);
1355 controller->max_len = UINT16_MAX;
1356 controller->controller_id = 0;
1357 controller->reason = OFPR_NO_MATCH;
1358 ofpact_pad(&ofpacts);
1360 error = add_internal_flow(ofproto, id++, &ofpacts, &ofproto->miss_rule);
1365 ofpbuf_clear(&ofpacts);
1366 error = add_internal_flow(ofproto, id++, &ofpacts,
1367 &ofproto->no_packet_in_rule);
1372 error = add_internal_flow(ofproto, id++, &ofpacts,
1373 &ofproto->drop_frags_rule);
1378 destruct(struct ofproto *ofproto_)
1380 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1381 struct rule_dpif *rule, *next_rule;
1382 struct ofproto_packet_in *pin, *next_pin;
1383 struct facet *facet, *next_facet;
1384 struct cls_cursor cursor;
1385 struct oftable *table;
1388 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
1389 cls_cursor_init(&cursor, &ofproto->facets, NULL);
1390 ovs_rwlock_unlock(&ofproto->facets.rwlock);
1391 CLS_CURSOR_FOR_EACH_SAFE (facet, next_facet, cr, &cursor) {
1392 facet_remove(facet);
1395 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1396 ovs_rwlock_wrlock(&xlate_rwlock);
1397 xlate_remove_ofproto(ofproto);
1398 ovs_rwlock_unlock(&xlate_rwlock);
1400 /* Discard any flow_miss_batches queued up for 'ofproto', avoiding a
1401 * use-after-free error. */
1402 udpif_revalidate(ofproto->backer->udpif);
1404 hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node);
1406 OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) {
1407 struct cls_cursor cursor;
1409 ovs_rwlock_rdlock(&table->cls.rwlock);
1410 cls_cursor_init(&cursor, &table->cls, NULL);
1411 ovs_rwlock_unlock(&table->cls.rwlock);
1412 CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) {
1413 ofproto_rule_delete(&ofproto->up, &rule->up);
1417 guarded_list_pop_all(&ofproto->pins, &pins);
1418 LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
1419 list_remove(&pin->list_node);
1420 free(CONST_CAST(void *, pin->up.packet));
1423 guarded_list_destroy(&ofproto->pins);
1425 mbridge_unref(ofproto->mbridge);
1427 netflow_destroy(ofproto->netflow);
1428 dpif_sflow_unref(ofproto->sflow);
1429 hmap_destroy(&ofproto->bundles);
1430 mac_learning_unref(ofproto->ml);
1432 classifier_destroy(&ofproto->facets);
1434 hmap_destroy(&ofproto->vlandev_map);
1435 hmap_destroy(&ofproto->realdev_vid_map);
1437 sset_destroy(&ofproto->ports);
1438 sset_destroy(&ofproto->ghost_ports);
1439 sset_destroy(&ofproto->port_poll_set);
1441 ovs_mutex_destroy(&ofproto->stats_mutex);
1442 ovs_mutex_destroy(&ofproto->vsp_mutex);
1444 close_dpif_backer(ofproto->backer);
1448 run_fast(struct ofproto *ofproto_)
1450 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1451 struct ofproto_packet_in *pin, *next_pin;
1454 /* Do not perform any periodic activity required by 'ofproto' while
1455 * waiting for flow restore to complete. */
1456 if (ofproto_get_flow_restore_wait()) {
1460 guarded_list_pop_all(&ofproto->pins, &pins);
1461 LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
1462 connmgr_send_packet_in(ofproto->up.connmgr, pin);
1463 list_remove(&pin->list_node);
1464 free(CONST_CAST(void *, pin->up.packet));
1472 run(struct ofproto *ofproto_)
1474 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1475 struct ofport_dpif *ofport;
1476 struct ofbundle *bundle;
1479 if (mbridge_need_revalidate(ofproto->mbridge)) {
1480 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1481 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1482 mac_learning_flush(ofproto->ml);
1483 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1486 /* Do not perform any periodic activity below required by 'ofproto' while
1487 * waiting for flow restore to complete. */
1488 if (ofproto_get_flow_restore_wait()) {
1492 error = run_fast(ofproto_);
1497 if (ofproto->netflow) {
1498 if (netflow_run(ofproto->netflow)) {
1499 send_netflow_active_timeouts(ofproto);
1502 if (ofproto->sflow) {
1503 dpif_sflow_run(ofproto->sflow);
1505 if (ofproto->ipfix) {
1506 dpif_ipfix_run(ofproto->ipfix);
1509 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1512 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1517 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1518 if (mac_learning_run(ofproto->ml)) {
1519 ofproto->backer->need_revalidate = REV_MAC_LEARNING;
1521 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1523 /* Check the consistency of a random facet, to aid debugging. */
1524 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
1525 if (time_msec() >= ofproto->consistency_rl
1526 && !classifier_is_empty(&ofproto->facets)
1527 && !ofproto->backer->need_revalidate) {
1528 struct cls_subtable *table;
1529 struct cls_rule *cr;
1530 struct facet *facet;
1532 ofproto->consistency_rl = time_msec() + 250;
1534 table = CONTAINER_OF(hmap_random_node(&ofproto->facets.subtables),
1535 struct cls_subtable, hmap_node);
1536 cr = CONTAINER_OF(hmap_random_node(&table->rules), struct cls_rule,
1538 facet = CONTAINER_OF(cr, struct facet, cr);
1540 if (!facet_check_consistency(facet)) {
1541 ofproto->backer->need_revalidate = REV_INCONSISTENCY;
1544 ovs_rwlock_unlock(&ofproto->facets.rwlock);
1550 wait(struct ofproto *ofproto_)
1552 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1553 struct ofbundle *bundle;
1555 if (ofproto_get_flow_restore_wait()) {
1559 if (ofproto->sflow) {
1560 dpif_sflow_wait(ofproto->sflow);
1562 if (ofproto->ipfix) {
1563 dpif_ipfix_wait(ofproto->ipfix);
1565 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1566 bundle_wait(bundle);
1568 if (ofproto->netflow) {
1569 netflow_wait(ofproto->netflow);
1571 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
1572 mac_learning_wait(ofproto->ml);
1573 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1575 if (ofproto->backer->need_revalidate) {
1576 /* Shouldn't happen, but if it does just go around again. */
1577 VLOG_DBG_RL(&rl, "need revalidate in ofproto_wait_cb()");
1578 poll_immediate_wake();
1583 get_memory_usage(const struct ofproto *ofproto_, struct simap *usage)
1585 const struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1586 struct cls_cursor cursor;
1587 size_t n_subfacets = 0;
1588 struct facet *facet;
1590 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
1591 simap_increase(usage, "facets", classifier_count(&ofproto->facets));
1592 ovs_rwlock_unlock(&ofproto->facets.rwlock);
1594 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
1595 cls_cursor_init(&cursor, &ofproto->facets, NULL);
1596 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
1597 n_subfacets += list_size(&facet->subfacets);
1599 ovs_rwlock_unlock(&ofproto->facets.rwlock);
1600 simap_increase(usage, "subfacets", n_subfacets);
1604 flush(struct ofproto *ofproto_)
1606 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1607 struct subfacet *subfacet, *next_subfacet;
1608 struct subfacet *batch[SUBFACET_DESTROY_MAX_BATCH];
1612 HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node,
1613 &ofproto->backer->subfacets) {
1614 if (subfacet->facet->ofproto != ofproto) {
1618 if (subfacet->path != SF_NOT_INSTALLED) {
1619 batch[n_batch++] = subfacet;
1620 if (n_batch >= SUBFACET_DESTROY_MAX_BATCH) {
1621 subfacet_destroy_batch(ofproto->backer, batch, n_batch);
1625 subfacet_destroy(subfacet);
1630 subfacet_destroy_batch(ofproto->backer, batch, n_batch);
1635 get_features(struct ofproto *ofproto_ OVS_UNUSED,
1636 bool *arp_match_ip, enum ofputil_action_bitmap *actions)
1638 *arp_match_ip = true;
1639 *actions = (OFPUTIL_A_OUTPUT |
1640 OFPUTIL_A_SET_VLAN_VID |
1641 OFPUTIL_A_SET_VLAN_PCP |
1642 OFPUTIL_A_STRIP_VLAN |
1643 OFPUTIL_A_SET_DL_SRC |
1644 OFPUTIL_A_SET_DL_DST |
1645 OFPUTIL_A_SET_NW_SRC |
1646 OFPUTIL_A_SET_NW_DST |
1647 OFPUTIL_A_SET_NW_TOS |
1648 OFPUTIL_A_SET_TP_SRC |
1649 OFPUTIL_A_SET_TP_DST |
1654 get_tables(struct ofproto *ofproto_, struct ofp12_table_stats *ots)
1656 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1657 struct dpif_dp_stats s;
1658 uint64_t n_miss, n_no_pkt_in, n_bytes, n_dropped_frags;
1661 strcpy(ots->name, "classifier");
1663 dpif_get_dp_stats(ofproto->backer->dpif, &s);
1664 rule_get_stats(&ofproto->miss_rule->up, &n_miss, &n_bytes);
1665 rule_get_stats(&ofproto->no_packet_in_rule->up, &n_no_pkt_in, &n_bytes);
1666 rule_get_stats(&ofproto->drop_frags_rule->up, &n_dropped_frags, &n_bytes);
1668 n_lookup = s.n_hit + s.n_missed - n_dropped_frags;
1669 ots->lookup_count = htonll(n_lookup);
1670 ots->matched_count = htonll(n_lookup - n_miss - n_no_pkt_in);
1673 static struct ofport *
1676 struct ofport_dpif *port = xmalloc(sizeof *port);
1681 port_dealloc(struct ofport *port_)
1683 struct ofport_dpif *port = ofport_dpif_cast(port_);
1688 port_construct(struct ofport *port_)
1690 struct ofport_dpif *port = ofport_dpif_cast(port_);
1691 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1692 const struct netdev *netdev = port->up.netdev;
1693 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
1694 struct dpif_port dpif_port;
1697 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1698 port->bundle = NULL;
1701 port->may_enable = true;
1702 port->stp_port = NULL;
1703 port->stp_state = STP_DISABLED;
1704 port->is_tunnel = false;
1708 port->realdev_ofp_port = 0;
1709 port->vlandev_vid = 0;
1710 port->carrier_seq = netdev_get_carrier_resets(netdev);
1712 if (netdev_vport_is_patch(netdev)) {
1713 /* By bailing out here, we don't submit the port to the sFlow module
1714 * to be considered for counter polling export. This is correct
1715 * because the patch port represents an interface that sFlow considers
1716 * to be "internal" to the switch as a whole, and therefore not an
1717 * candidate for counter polling. */
1718 port->odp_port = ODPP_NONE;
1719 ofport_update_peer(port);
1723 error = dpif_port_query_by_name(ofproto->backer->dpif,
1724 netdev_vport_get_dpif_port(netdev, namebuf,
1731 port->odp_port = dpif_port.port_no;
1733 if (netdev_get_tunnel_config(netdev)) {
1734 tnl_port_add(port, port->up.netdev, port->odp_port);
1735 port->is_tunnel = true;
1737 /* Sanity-check that a mapping doesn't already exist. This
1738 * shouldn't happen for non-tunnel ports. */
1739 if (odp_port_to_ofp_port(ofproto, port->odp_port) != OFPP_NONE) {
1740 VLOG_ERR("port %s already has an OpenFlow port number",
1742 dpif_port_destroy(&dpif_port);
1746 ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
1747 hmap_insert(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node,
1748 hash_odp_port(port->odp_port));
1749 ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
1751 dpif_port_destroy(&dpif_port);
1753 if (ofproto->sflow) {
1754 dpif_sflow_add_port(ofproto->sflow, port_, port->odp_port);
1761 port_destruct(struct ofport *port_)
1763 struct ofport_dpif *port = ofport_dpif_cast(port_);
1764 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1765 const char *devname = netdev_get_name(port->up.netdev);
1766 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
1767 const char *dp_port_name;
1769 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1770 ovs_rwlock_wrlock(&xlate_rwlock);
1771 xlate_ofport_remove(port);
1772 ovs_rwlock_unlock(&xlate_rwlock);
1774 dp_port_name = netdev_vport_get_dpif_port(port->up.netdev, namebuf,
1776 if (dpif_port_exists(ofproto->backer->dpif, dp_port_name)) {
1777 /* The underlying device is still there, so delete it. This
1778 * happens when the ofproto is being destroyed, since the caller
1779 * assumes that removal of attached ports will happen as part of
1781 if (!port->is_tunnel) {
1782 dpif_port_del(ofproto->backer->dpif, port->odp_port);
1787 port->peer->peer = NULL;
1791 if (port->odp_port != ODPP_NONE && !port->is_tunnel) {
1792 ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
1793 hmap_remove(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node);
1794 ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
1798 sset_find_and_delete(&ofproto->ports, devname);
1799 sset_find_and_delete(&ofproto->ghost_ports, devname);
1800 bundle_remove(port_);
1801 set_cfm(port_, NULL);
1802 set_bfd(port_, NULL);
1803 if (ofproto->sflow) {
1804 dpif_sflow_del_port(ofproto->sflow, port->odp_port);
1811 port_modified(struct ofport *port_)
1813 struct ofport_dpif *port = ofport_dpif_cast(port_);
1815 if (port->bundle && port->bundle->bond) {
1816 bond_slave_set_netdev(port->bundle->bond, port, port->up.netdev);
1820 cfm_set_netdev(port->cfm, port->up.netdev);
1824 bfd_set_netdev(port->bfd, port->up.netdev);
1827 ofproto_dpif_monitor_port_update(port, port->bfd, port->cfm,
1828 port->up.pp.hw_addr);
1830 if (port->is_tunnel && tnl_port_reconfigure(port, port->up.netdev,
1832 ofproto_dpif_cast(port->up.ofproto)->backer->need_revalidate =
1836 ofport_update_peer(port);
1840 port_reconfigured(struct ofport *port_, enum ofputil_port_config old_config)
1842 struct ofport_dpif *port = ofport_dpif_cast(port_);
1843 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1844 enum ofputil_port_config changed = old_config ^ port->up.pp.config;
1846 if (changed & (OFPUTIL_PC_NO_RECV | OFPUTIL_PC_NO_RECV_STP |
1847 OFPUTIL_PC_NO_FWD | OFPUTIL_PC_NO_FLOOD |
1848 OFPUTIL_PC_NO_PACKET_IN)) {
1849 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1851 if (changed & OFPUTIL_PC_NO_FLOOD && port->bundle) {
1852 bundle_update(port->bundle);
1858 set_sflow(struct ofproto *ofproto_,
1859 const struct ofproto_sflow_options *sflow_options)
1861 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1862 struct dpif_sflow *ds = ofproto->sflow;
1864 if (sflow_options) {
1866 struct ofport_dpif *ofport;
1868 ds = ofproto->sflow = dpif_sflow_create();
1869 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1870 dpif_sflow_add_port(ds, &ofport->up, ofport->odp_port);
1872 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1874 dpif_sflow_set_options(ds, sflow_options);
1877 dpif_sflow_unref(ds);
1878 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1879 ofproto->sflow = NULL;
1887 struct ofproto *ofproto_,
1888 const struct ofproto_ipfix_bridge_exporter_options *bridge_exporter_options,
1889 const struct ofproto_ipfix_flow_exporter_options *flow_exporters_options,
1890 size_t n_flow_exporters_options)
1892 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1893 struct dpif_ipfix *di = ofproto->ipfix;
1894 bool has_options = bridge_exporter_options || flow_exporters_options;
1896 if (has_options && !di) {
1897 di = ofproto->ipfix = dpif_ipfix_create();
1901 /* Call set_options in any case to cleanly flush the flow
1902 * caches in the last exporters that are to be destroyed. */
1903 dpif_ipfix_set_options(
1904 di, bridge_exporter_options, flow_exporters_options,
1905 n_flow_exporters_options);
1908 dpif_ipfix_unref(di);
1909 ofproto->ipfix = NULL;
1917 set_cfm(struct ofport *ofport_, const struct cfm_settings *s)
1919 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1924 struct ofproto_dpif *ofproto;
1926 ofproto = ofproto_dpif_cast(ofport->up.ofproto);
1927 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1928 ofport->cfm = cfm_create(ofport->up.netdev);
1931 if (cfm_configure(ofport->cfm, s)) {
1938 cfm_unref(ofport->cfm);
1941 ofproto_dpif_monitor_port_update(ofport, ofport->bfd, ofport->cfm,
1942 ofport->up.pp.hw_addr);
1947 get_cfm_status(const struct ofport *ofport_,
1948 struct ofproto_cfm_status *status)
1950 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1953 status->faults = cfm_get_fault(ofport->cfm);
1954 status->flap_count = cfm_get_flap_count(ofport->cfm);
1955 status->remote_opstate = cfm_get_opup(ofport->cfm);
1956 status->health = cfm_get_health(ofport->cfm);
1957 cfm_get_remote_mpids(ofport->cfm, &status->rmps, &status->n_rmps);
1965 set_bfd(struct ofport *ofport_, const struct smap *cfg)
1967 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto);
1968 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1972 ofport->bfd = bfd_configure(old, netdev_get_name(ofport->up.netdev),
1973 cfg, ofport->up.netdev);
1974 if (ofport->bfd != old) {
1975 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1977 ofproto_dpif_monitor_port_update(ofport, ofport->bfd, ofport->cfm,
1978 ofport->up.pp.hw_addr);
1983 get_bfd_status(struct ofport *ofport_, struct smap *smap)
1985 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1988 bfd_get_status(ofport->bfd, smap);
1995 /* Spanning Tree. */
1998 send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_)
2000 struct ofproto_dpif *ofproto = ofproto_;
2001 struct stp_port *sp = stp_get_port(ofproto->stp, port_num);
2002 struct ofport_dpif *ofport;
2004 ofport = stp_port_get_aux(sp);
2006 VLOG_WARN_RL(&rl, "%s: cannot send BPDU on unknown port %d",
2007 ofproto->up.name, port_num);
2009 struct eth_header *eth = pkt->l2;
2011 netdev_get_etheraddr(ofport->up.netdev, eth->eth_src);
2012 if (eth_addr_is_zero(eth->eth_src)) {
2013 VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d "
2014 "with unknown MAC", ofproto->up.name, port_num);
2016 ofproto_dpif_send_packet(ofport, pkt);
2022 /* Configures STP on 'ofproto_' using the settings defined in 's'. */
2024 set_stp(struct ofproto *ofproto_, const struct ofproto_stp_settings *s)
2026 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2028 /* Only revalidate flows if the configuration changed. */
2029 if (!s != !ofproto->stp) {
2030 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2034 if (!ofproto->stp) {
2035 ofproto->stp = stp_create(ofproto_->name, s->system_id,
2036 send_bpdu_cb, ofproto);
2037 ofproto->stp_last_tick = time_msec();
2040 stp_set_bridge_id(ofproto->stp, s->system_id);
2041 stp_set_bridge_priority(ofproto->stp, s->priority);
2042 stp_set_hello_time(ofproto->stp, s->hello_time);
2043 stp_set_max_age(ofproto->stp, s->max_age);
2044 stp_set_forward_delay(ofproto->stp, s->fwd_delay);
2046 struct ofport *ofport;
2048 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
2049 set_stp_port(ofport, NULL);
2052 stp_unref(ofproto->stp);
2053 ofproto->stp = NULL;
2060 get_stp_status(struct ofproto *ofproto_, struct ofproto_stp_status *s)
2062 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2066 s->bridge_id = stp_get_bridge_id(ofproto->stp);
2067 s->designated_root = stp_get_designated_root(ofproto->stp);
2068 s->root_path_cost = stp_get_root_path_cost(ofproto->stp);
2077 update_stp_port_state(struct ofport_dpif *ofport)
2079 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2080 enum stp_state state;
2082 /* Figure out new state. */
2083 state = ofport->stp_port ? stp_port_get_state(ofport->stp_port)
2087 if (ofport->stp_state != state) {
2088 enum ofputil_port_state of_state;
2091 VLOG_DBG_RL(&rl, "port %s: STP state changed from %s to %s",
2092 netdev_get_name(ofport->up.netdev),
2093 stp_state_name(ofport->stp_state),
2094 stp_state_name(state));
2095 if (stp_learn_in_state(ofport->stp_state)
2096 != stp_learn_in_state(state)) {
2097 /* xxx Learning action flows should also be flushed. */
2098 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2099 mac_learning_flush(ofproto->ml);
2100 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2102 fwd_change = stp_forward_in_state(ofport->stp_state)
2103 != stp_forward_in_state(state);
2105 ofproto->backer->need_revalidate = REV_STP;
2106 ofport->stp_state = state;
2107 ofport->stp_state_entered = time_msec();
2109 if (fwd_change && ofport->bundle) {
2110 bundle_update(ofport->bundle);
2113 /* Update the STP state bits in the OpenFlow port description. */
2114 of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK;
2115 of_state |= (state == STP_LISTENING ? OFPUTIL_PS_STP_LISTEN
2116 : state == STP_LEARNING ? OFPUTIL_PS_STP_LEARN
2117 : state == STP_FORWARDING ? OFPUTIL_PS_STP_FORWARD
2118 : state == STP_BLOCKING ? OFPUTIL_PS_STP_BLOCK
2120 ofproto_port_set_state(&ofport->up, of_state);
2124 /* Configures STP on 'ofport_' using the settings defined in 's'. The
2125 * caller is responsible for assigning STP port numbers and ensuring
2126 * there are no duplicates. */
2128 set_stp_port(struct ofport *ofport_,
2129 const struct ofproto_port_stp_settings *s)
2131 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2132 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2133 struct stp_port *sp = ofport->stp_port;
2135 if (!s || !s->enable) {
2137 ofport->stp_port = NULL;
2138 stp_port_disable(sp);
2139 update_stp_port_state(ofport);
2142 } else if (sp && stp_port_no(sp) != s->port_num
2143 && ofport == stp_port_get_aux(sp)) {
2144 /* The port-id changed, so disable the old one if it's not
2145 * already in use by another port. */
2146 stp_port_disable(sp);
2149 sp = ofport->stp_port = stp_get_port(ofproto->stp, s->port_num);
2150 stp_port_enable(sp);
2152 stp_port_set_aux(sp, ofport);
2153 stp_port_set_priority(sp, s->priority);
2154 stp_port_set_path_cost(sp, s->path_cost);
2156 update_stp_port_state(ofport);
2162 get_stp_port_status(struct ofport *ofport_,
2163 struct ofproto_port_stp_status *s)
2165 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2166 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2167 struct stp_port *sp = ofport->stp_port;
2169 if (!ofproto->stp || !sp) {
2175 s->port_id = stp_port_get_id(sp);
2176 s->state = stp_port_get_state(sp);
2177 s->sec_in_state = (time_msec() - ofport->stp_state_entered) / 1000;
2178 s->role = stp_port_get_role(sp);
2179 stp_port_get_counts(sp, &s->tx_count, &s->rx_count, &s->error_count);
2185 stp_run(struct ofproto_dpif *ofproto)
2188 long long int now = time_msec();
2189 long long int elapsed = now - ofproto->stp_last_tick;
2190 struct stp_port *sp;
2193 stp_tick(ofproto->stp, MIN(INT_MAX, elapsed));
2194 ofproto->stp_last_tick = now;
2196 while (stp_get_changed_port(ofproto->stp, &sp)) {
2197 struct ofport_dpif *ofport = stp_port_get_aux(sp);
2200 update_stp_port_state(ofport);
2204 if (stp_check_and_reset_fdb_flush(ofproto->stp)) {
2205 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2206 mac_learning_flush(ofproto->ml);
2207 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2213 stp_wait(struct ofproto_dpif *ofproto)
2216 poll_timer_wait(1000);
2221 set_queues(struct ofport *ofport_, const struct ofproto_port_queue *qdscp,
2224 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2225 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2227 if (ofport->n_qdscp != n_qdscp
2228 || (n_qdscp && memcmp(ofport->qdscp, qdscp,
2229 n_qdscp * sizeof *qdscp))) {
2230 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2231 free(ofport->qdscp);
2232 ofport->qdscp = n_qdscp
2233 ? xmemdup(qdscp, n_qdscp * sizeof *qdscp)
2235 ofport->n_qdscp = n_qdscp;
2243 /* Expires all MAC learning entries associated with 'bundle' and forces its
2244 * ofproto to revalidate every flow.
2246 * Normally MAC learning entries are removed only from the ofproto associated
2247 * with 'bundle', but if 'all_ofprotos' is true, then the MAC learning entries
2248 * are removed from every ofproto. When patch ports and SLB bonds are in use
2249 * and a VM migration happens and the gratuitous ARPs are somehow lost, this
2250 * avoids a MAC_ENTRY_IDLE_TIME delay before the migrated VM can communicate
2251 * with the host from which it migrated. */
2253 bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos)
2255 struct ofproto_dpif *ofproto = bundle->ofproto;
2256 struct mac_learning *ml = ofproto->ml;
2257 struct mac_entry *mac, *next_mac;
2259 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2260 ovs_rwlock_wrlock(&ml->rwlock);
2261 LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
2262 if (mac->port.p == bundle) {
2264 struct ofproto_dpif *o;
2266 HMAP_FOR_EACH (o, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
2268 struct mac_entry *e;
2270 ovs_rwlock_wrlock(&o->ml->rwlock);
2271 e = mac_learning_lookup(o->ml, mac->mac, mac->vlan);
2273 mac_learning_expire(o->ml, e);
2275 ovs_rwlock_unlock(&o->ml->rwlock);
2280 mac_learning_expire(ml, mac);
2283 ovs_rwlock_unlock(&ml->rwlock);
2286 static struct ofbundle *
2287 bundle_lookup(const struct ofproto_dpif *ofproto, void *aux)
2289 struct ofbundle *bundle;
2291 HMAP_FOR_EACH_IN_BUCKET (bundle, hmap_node, hash_pointer(aux, 0),
2292 &ofproto->bundles) {
2293 if (bundle->aux == aux) {
2301 bundle_update(struct ofbundle *bundle)
2303 struct ofport_dpif *port;
2305 bundle->floodable = true;
2306 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2307 if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
2308 || !stp_forward_in_state(port->stp_state)) {
2309 bundle->floodable = false;
2316 bundle_del_port(struct ofport_dpif *port)
2318 struct ofbundle *bundle = port->bundle;
2320 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2322 list_remove(&port->bundle_node);
2323 port->bundle = NULL;
2326 lacp_slave_unregister(bundle->lacp, port);
2329 bond_slave_unregister(bundle->bond, port);
2332 bundle_update(bundle);
2336 bundle_add_port(struct ofbundle *bundle, ofp_port_t ofp_port,
2337 struct lacp_slave_settings *lacp)
2339 struct ofport_dpif *port;
2341 port = get_ofp_port(bundle->ofproto, ofp_port);
2346 if (port->bundle != bundle) {
2347 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2349 bundle_remove(&port->up);
2352 port->bundle = bundle;
2353 list_push_back(&bundle->ports, &port->bundle_node);
2354 if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
2355 || !stp_forward_in_state(port->stp_state)) {
2356 bundle->floodable = false;
2360 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2361 lacp_slave_register(bundle->lacp, port, lacp);
2368 bundle_destroy(struct ofbundle *bundle)
2370 struct ofproto_dpif *ofproto;
2371 struct ofport_dpif *port, *next_port;
2377 ofproto = bundle->ofproto;
2378 mbridge_unregister_bundle(ofproto->mbridge, bundle->aux);
2380 ovs_rwlock_wrlock(&xlate_rwlock);
2381 xlate_bundle_remove(bundle);
2382 ovs_rwlock_unlock(&xlate_rwlock);
2384 LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
2385 bundle_del_port(port);
2388 bundle_flush_macs(bundle, true);
2389 hmap_remove(&ofproto->bundles, &bundle->hmap_node);
2391 free(bundle->trunks);
2392 lacp_unref(bundle->lacp);
2393 bond_unref(bundle->bond);
2398 bundle_set(struct ofproto *ofproto_, void *aux,
2399 const struct ofproto_bundle_settings *s)
2401 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2402 bool need_flush = false;
2403 struct ofport_dpif *port;
2404 struct ofbundle *bundle;
2405 unsigned long *trunks;
2411 bundle_destroy(bundle_lookup(ofproto, aux));
2415 ovs_assert(s->n_slaves == 1 || s->bond != NULL);
2416 ovs_assert((s->lacp != NULL) == (s->lacp_slaves != NULL));
2418 bundle = bundle_lookup(ofproto, aux);
2420 bundle = xmalloc(sizeof *bundle);
2422 bundle->ofproto = ofproto;
2423 hmap_insert(&ofproto->bundles, &bundle->hmap_node,
2424 hash_pointer(aux, 0));
2426 bundle->name = NULL;
2428 list_init(&bundle->ports);
2429 bundle->vlan_mode = PORT_VLAN_TRUNK;
2431 bundle->trunks = NULL;
2432 bundle->use_priority_tags = s->use_priority_tags;
2433 bundle->lacp = NULL;
2434 bundle->bond = NULL;
2436 bundle->floodable = true;
2437 mbridge_register_bundle(ofproto->mbridge, bundle);
2440 if (!bundle->name || strcmp(s->name, bundle->name)) {
2442 bundle->name = xstrdup(s->name);
2447 if (!bundle->lacp) {
2448 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2449 bundle->lacp = lacp_create();
2451 lacp_configure(bundle->lacp, s->lacp);
2453 lacp_unref(bundle->lacp);
2454 bundle->lacp = NULL;
2457 /* Update set of ports. */
2459 for (i = 0; i < s->n_slaves; i++) {
2460 if (!bundle_add_port(bundle, s->slaves[i],
2461 s->lacp ? &s->lacp_slaves[i] : NULL)) {
2465 if (!ok || list_size(&bundle->ports) != s->n_slaves) {
2466 struct ofport_dpif *next_port;
2468 LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
2469 for (i = 0; i < s->n_slaves; i++) {
2470 if (s->slaves[i] == port->up.ofp_port) {
2475 bundle_del_port(port);
2479 ovs_assert(list_size(&bundle->ports) <= s->n_slaves);
2481 if (list_is_empty(&bundle->ports)) {
2482 bundle_destroy(bundle);
2486 /* Set VLAN tagging mode */
2487 if (s->vlan_mode != bundle->vlan_mode
2488 || s->use_priority_tags != bundle->use_priority_tags) {
2489 bundle->vlan_mode = s->vlan_mode;
2490 bundle->use_priority_tags = s->use_priority_tags;
2495 vlan = (s->vlan_mode == PORT_VLAN_TRUNK ? -1
2496 : s->vlan >= 0 && s->vlan <= 4095 ? s->vlan
2498 if (vlan != bundle->vlan) {
2499 bundle->vlan = vlan;
2503 /* Get trunked VLANs. */
2504 switch (s->vlan_mode) {
2505 case PORT_VLAN_ACCESS:
2509 case PORT_VLAN_TRUNK:
2510 trunks = CONST_CAST(unsigned long *, s->trunks);
2513 case PORT_VLAN_NATIVE_UNTAGGED:
2514 case PORT_VLAN_NATIVE_TAGGED:
2515 if (vlan != 0 && (!s->trunks
2516 || !bitmap_is_set(s->trunks, vlan)
2517 || bitmap_is_set(s->trunks, 0))) {
2518 /* Force trunking the native VLAN and prohibit trunking VLAN 0. */
2520 trunks = bitmap_clone(s->trunks, 4096);
2522 trunks = bitmap_allocate1(4096);
2524 bitmap_set1(trunks, vlan);
2525 bitmap_set0(trunks, 0);
2527 trunks = CONST_CAST(unsigned long *, s->trunks);
2534 if (!vlan_bitmap_equal(trunks, bundle->trunks)) {
2535 free(bundle->trunks);
2536 if (trunks == s->trunks) {
2537 bundle->trunks = vlan_bitmap_clone(trunks);
2539 bundle->trunks = trunks;
2544 if (trunks != s->trunks) {
2549 if (!list_is_short(&bundle->ports)) {
2550 bundle->ofproto->has_bonded_bundles = true;
2552 if (bond_reconfigure(bundle->bond, s->bond)) {
2553 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2556 bundle->bond = bond_create(s->bond);
2557 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2560 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2561 bond_slave_register(bundle->bond, port, port->up.netdev);
2564 bond_unref(bundle->bond);
2565 bundle->bond = NULL;
2568 /* If we changed something that would affect MAC learning, un-learn
2569 * everything on this port and force flow revalidation. */
2571 bundle_flush_macs(bundle, false);
2578 bundle_remove(struct ofport *port_)
2580 struct ofport_dpif *port = ofport_dpif_cast(port_);
2581 struct ofbundle *bundle = port->bundle;
2584 bundle_del_port(port);
2585 if (list_is_empty(&bundle->ports)) {
2586 bundle_destroy(bundle);
2587 } else if (list_is_short(&bundle->ports)) {
2588 bond_unref(bundle->bond);
2589 bundle->bond = NULL;
2595 send_pdu_cb(void *port_, const void *pdu, size_t pdu_size)
2597 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
2598 struct ofport_dpif *port = port_;
2599 uint8_t ea[ETH_ADDR_LEN];
2602 error = netdev_get_etheraddr(port->up.netdev, ea);
2604 struct ofpbuf packet;
2607 ofpbuf_init(&packet, 0);
2608 packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP,
2610 memcpy(packet_pdu, pdu, pdu_size);
2612 ofproto_dpif_send_packet(port, &packet);
2613 ofpbuf_uninit(&packet);
2615 VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface "
2616 "%s (%s)", port->bundle->name,
2617 netdev_get_name(port->up.netdev), ovs_strerror(error));
2622 bundle_send_learning_packets(struct ofbundle *bundle)
2624 struct ofproto_dpif *ofproto = bundle->ofproto;
2625 struct ofpbuf *learning_packet;
2626 int error, n_packets, n_errors;
2627 struct mac_entry *e;
2628 struct list packets;
2630 list_init(&packets);
2631 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
2632 LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
2633 if (e->port.p != bundle) {
2636 learning_packet = bond_compose_learning_packet(bundle->bond,
2639 learning_packet->private_p = port_void;
2640 list_push_back(&packets, &learning_packet->list_node);
2643 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2645 error = n_packets = n_errors = 0;
2646 LIST_FOR_EACH (learning_packet, list_node, &packets) {
2649 ret = ofproto_dpif_send_packet(learning_packet->private_p, learning_packet);
2656 ofpbuf_list_delete(&packets);
2659 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2660 VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning "
2661 "packets, last error was: %s",
2662 bundle->name, n_errors, n_packets, ovs_strerror(error));
2664 VLOG_DBG("bond %s: sent %d gratuitous learning packets",
2665 bundle->name, n_packets);
2670 bundle_run(struct ofbundle *bundle)
2673 lacp_run(bundle->lacp, send_pdu_cb);
2676 struct ofport_dpif *port;
2678 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2679 bond_slave_set_may_enable(bundle->bond, port, port->may_enable);
2682 if (bond_run(bundle->bond, lacp_status(bundle->lacp))) {
2683 bundle->ofproto->backer->need_revalidate = REV_BOND;
2686 if (bond_should_send_learning_packets(bundle->bond)) {
2687 bundle_send_learning_packets(bundle);
2693 bundle_wait(struct ofbundle *bundle)
2696 lacp_wait(bundle->lacp);
2699 bond_wait(bundle->bond);
2706 mirror_set__(struct ofproto *ofproto_, void *aux,
2707 const struct ofproto_mirror_settings *s)
2709 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2710 struct ofbundle **srcs, **dsts;
2715 mirror_destroy(ofproto->mbridge, aux);
2719 srcs = xmalloc(s->n_srcs * sizeof *srcs);
2720 dsts = xmalloc(s->n_dsts * sizeof *dsts);
2722 for (i = 0; i < s->n_srcs; i++) {
2723 srcs[i] = bundle_lookup(ofproto, s->srcs[i]);
2726 for (i = 0; i < s->n_dsts; i++) {
2727 dsts[i] = bundle_lookup(ofproto, s->dsts[i]);
2730 error = mirror_set(ofproto->mbridge, aux, s->name, srcs, s->n_srcs, dsts,
2731 s->n_dsts, s->src_vlans,
2732 bundle_lookup(ofproto, s->out_bundle), s->out_vlan);
2739 mirror_get_stats__(struct ofproto *ofproto, void *aux,
2740 uint64_t *packets, uint64_t *bytes)
2743 return mirror_get_stats(ofproto_dpif_cast(ofproto)->mbridge, aux, packets,
2748 set_flood_vlans(struct ofproto *ofproto_, unsigned long *flood_vlans)
2750 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2751 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2752 if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) {
2753 mac_learning_flush(ofproto->ml);
2755 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2760 is_mirror_output_bundle(const struct ofproto *ofproto_, void *aux)
2762 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2763 struct ofbundle *bundle = bundle_lookup(ofproto, aux);
2764 return bundle && mirror_bundle_out(ofproto->mbridge, bundle) != 0;
2768 forward_bpdu_changed(struct ofproto *ofproto_)
2770 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2771 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2775 set_mac_table_config(struct ofproto *ofproto_, unsigned int idle_time,
2778 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2779 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2780 mac_learning_set_idle_time(ofproto->ml, idle_time);
2781 mac_learning_set_max_entries(ofproto->ml, max_entries);
2782 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2787 static struct ofport_dpif *
2788 get_ofp_port(const struct ofproto_dpif *ofproto, ofp_port_t ofp_port)
2790 struct ofport *ofport = ofproto_get_port(&ofproto->up, ofp_port);
2791 return ofport ? ofport_dpif_cast(ofport) : NULL;
2794 static struct ofport_dpif *
2795 get_odp_port(const struct ofproto_dpif *ofproto, odp_port_t odp_port)
2797 struct ofport_dpif *port = odp_port_to_ofport(ofproto->backer, odp_port);
2798 return port && &ofproto->up == port->up.ofproto ? port : NULL;
2802 ofproto_port_from_dpif_port(struct ofproto_dpif *ofproto,
2803 struct ofproto_port *ofproto_port,
2804 struct dpif_port *dpif_port)
2806 ofproto_port->name = dpif_port->name;
2807 ofproto_port->type = dpif_port->type;
2808 ofproto_port->ofp_port = odp_port_to_ofp_port(ofproto, dpif_port->port_no);
2812 ofport_update_peer(struct ofport_dpif *ofport)
2814 const struct ofproto_dpif *ofproto;
2815 struct dpif_backer *backer;
2818 if (!netdev_vport_is_patch(ofport->up.netdev)) {
2822 backer = ofproto_dpif_cast(ofport->up.ofproto)->backer;
2823 backer->need_revalidate = REV_RECONFIGURE;
2826 ofport->peer->peer = NULL;
2827 ofport->peer = NULL;
2830 peer_name = netdev_vport_patch_peer(ofport->up.netdev);
2835 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
2836 struct ofport *peer_ofport;
2837 struct ofport_dpif *peer;
2840 if (ofproto->backer != backer) {
2844 peer_ofport = shash_find_data(&ofproto->up.port_by_name, peer_name);
2849 peer = ofport_dpif_cast(peer_ofport);
2850 peer_peer = netdev_vport_patch_peer(peer->up.netdev);
2851 if (peer_peer && !strcmp(netdev_get_name(ofport->up.netdev),
2853 ofport->peer = peer;
2854 ofport->peer->peer = ofport;
2864 port_run(struct ofport_dpif *ofport)
2866 long long int carrier_seq = netdev_get_carrier_resets(ofport->up.netdev);
2867 bool carrier_changed = carrier_seq != ofport->carrier_seq;
2868 bool enable = netdev_get_carrier(ofport->up.netdev);
2869 bool cfm_enable = false;
2870 bool bfd_enable = false;
2872 ofport->carrier_seq = carrier_seq;
2875 int cfm_opup = cfm_get_opup(ofport->cfm);
2877 cfm_enable = !cfm_get_fault(ofport->cfm);
2879 if (cfm_opup >= 0) {
2880 cfm_enable = cfm_enable && cfm_opup;
2885 bfd_enable = bfd_forwarding(ofport->bfd);
2888 if (ofport->bfd || ofport->cfm) {
2889 enable = enable && (cfm_enable || bfd_enable);
2892 if (ofport->bundle) {
2893 enable = enable && lacp_slave_may_enable(ofport->bundle->lacp, ofport);
2894 if (carrier_changed) {
2895 lacp_slave_carrier_changed(ofport->bundle->lacp, ofport);
2899 if (ofport->may_enable != enable) {
2900 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2901 ofproto->backer->need_revalidate = REV_PORT_TOGGLED;
2904 ofport->may_enable = enable;
2908 port_query_by_name(const struct ofproto *ofproto_, const char *devname,
2909 struct ofproto_port *ofproto_port)
2911 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2912 struct dpif_port dpif_port;
2915 if (sset_contains(&ofproto->ghost_ports, devname)) {
2916 const char *type = netdev_get_type_from_name(devname);
2918 /* We may be called before ofproto->up.port_by_name is populated with
2919 * the appropriate ofport. For this reason, we must get the name and
2920 * type from the netdev layer directly. */
2922 const struct ofport *ofport;
2924 ofport = shash_find_data(&ofproto->up.port_by_name, devname);
2925 ofproto_port->ofp_port = ofport ? ofport->ofp_port : OFPP_NONE;
2926 ofproto_port->name = xstrdup(devname);
2927 ofproto_port->type = xstrdup(type);
2933 if (!sset_contains(&ofproto->ports, devname)) {
2936 error = dpif_port_query_by_name(ofproto->backer->dpif,
2937 devname, &dpif_port);
2939 ofproto_port_from_dpif_port(ofproto, ofproto_port, &dpif_port);
2945 port_add(struct ofproto *ofproto_, struct netdev *netdev)
2947 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2948 const char *devname = netdev_get_name(netdev);
2949 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
2950 const char *dp_port_name;
2952 if (netdev_vport_is_patch(netdev)) {
2953 sset_add(&ofproto->ghost_ports, netdev_get_name(netdev));
2957 dp_port_name = netdev_vport_get_dpif_port(netdev, namebuf, sizeof namebuf);
2958 if (!dpif_port_exists(ofproto->backer->dpif, dp_port_name)) {
2959 odp_port_t port_no = ODPP_NONE;
2962 error = dpif_port_add(ofproto->backer->dpif, netdev, &port_no);
2966 if (netdev_get_tunnel_config(netdev)) {
2967 simap_put(&ofproto->backer->tnl_backers,
2968 dp_port_name, odp_to_u32(port_no));
2972 if (netdev_get_tunnel_config(netdev)) {
2973 sset_add(&ofproto->ghost_ports, devname);
2975 sset_add(&ofproto->ports, devname);
2981 port_del(struct ofproto *ofproto_, ofp_port_t ofp_port)
2983 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2984 struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port);
2991 sset_find_and_delete(&ofproto->ghost_ports,
2992 netdev_get_name(ofport->up.netdev));
2993 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2994 if (!ofport->is_tunnel && !netdev_vport_is_patch(ofport->up.netdev)) {
2995 error = dpif_port_del(ofproto->backer->dpif, ofport->odp_port);
2997 /* The caller is going to close ofport->up.netdev. If this is a
2998 * bonded port, then the bond is using that netdev, so remove it
2999 * from the bond. The client will need to reconfigure everything
3000 * after deleting ports, so then the slave will get re-added. */
3001 bundle_remove(&ofport->up);
3008 port_get_stats(const struct ofport *ofport_, struct netdev_stats *stats)
3010 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
3015 error = netdev_get_stats(ofport->up.netdev, stats);
3017 if (!error && ofport_->ofp_port == OFPP_LOCAL) {
3018 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
3020 ovs_mutex_lock(&ofproto->stats_mutex);
3021 /* ofproto->stats.tx_packets represents packets that we created
3022 * internally and sent to some port (e.g. packets sent with
3023 * ofproto_dpif_send_packet()). Account for them as if they had
3024 * come from OFPP_LOCAL and got forwarded. */
3026 if (stats->rx_packets != UINT64_MAX) {
3027 stats->rx_packets += ofproto->stats.tx_packets;
3030 if (stats->rx_bytes != UINT64_MAX) {
3031 stats->rx_bytes += ofproto->stats.tx_bytes;
3034 /* ofproto->stats.rx_packets represents packets that were received on
3035 * some port and we processed internally and dropped (e.g. STP).
3036 * Account for them as if they had been forwarded to OFPP_LOCAL. */
3038 if (stats->tx_packets != UINT64_MAX) {
3039 stats->tx_packets += ofproto->stats.rx_packets;
3042 if (stats->tx_bytes != UINT64_MAX) {
3043 stats->tx_bytes += ofproto->stats.rx_bytes;
3045 ovs_mutex_unlock(&ofproto->stats_mutex);
3051 struct port_dump_state {
3056 struct ofproto_port port;
3061 port_dump_start(const struct ofproto *ofproto_ OVS_UNUSED, void **statep)
3063 *statep = xzalloc(sizeof(struct port_dump_state));
3068 port_dump_next(const struct ofproto *ofproto_, void *state_,
3069 struct ofproto_port *port)
3071 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3072 struct port_dump_state *state = state_;
3073 const struct sset *sset;
3074 struct sset_node *node;
3076 if (state->has_port) {
3077 ofproto_port_destroy(&state->port);
3078 state->has_port = false;
3080 sset = state->ghost ? &ofproto->ghost_ports : &ofproto->ports;
3081 while ((node = sset_at_position(sset, &state->bucket, &state->offset))) {
3084 error = port_query_by_name(ofproto_, node->name, &state->port);
3086 *port = state->port;
3087 state->has_port = true;
3089 } else if (error != ENODEV) {
3094 if (!state->ghost) {
3095 state->ghost = true;
3098 return port_dump_next(ofproto_, state_, port);
3105 port_dump_done(const struct ofproto *ofproto_ OVS_UNUSED, void *state_)
3107 struct port_dump_state *state = state_;
3109 if (state->has_port) {
3110 ofproto_port_destroy(&state->port);
3117 port_poll(const struct ofproto *ofproto_, char **devnamep)
3119 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3121 if (ofproto->port_poll_errno) {
3122 int error = ofproto->port_poll_errno;
3123 ofproto->port_poll_errno = 0;
3127 if (sset_is_empty(&ofproto->port_poll_set)) {
3131 *devnamep = sset_pop(&ofproto->port_poll_set);
3136 port_poll_wait(const struct ofproto *ofproto_)
3138 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3139 dpif_port_poll_wait(ofproto->backer->dpif);
3143 port_is_lacp_current(const struct ofport *ofport_)
3145 const struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
3146 return (ofport->bundle && ofport->bundle->lacp
3147 ? lacp_slave_is_current(ofport->bundle->lacp, ofport)
3151 /* Upcall handling. */
3153 struct flow_miss_op {
3154 struct dpif_op dpif_op;
3156 uint64_t slow_stub[128 / 8]; /* Buffer for compose_slow_path() */
3157 struct xlate_out xout;
3158 bool xout_garbage; /* 'xout' needs to be uninitialized? */
3160 struct ofpbuf mask; /* Flow mask for "put" ops. */
3161 struct odputil_keybuf maskbuf;
3163 /* If this is a "put" op, then a pointer to the subfacet that should
3164 * be marked as uninstalled if the operation fails. */
3165 struct subfacet *subfacet;
3168 /* Figures out whether a flow that missed in 'ofproto', whose details are in
3169 * 'miss' masked by 'wc', is likely to be worth tracking in detail in userspace
3170 * and (usually) installing a datapath flow. The answer is usually "yes" (a
3171 * return value of true). However, for short flows the cost of bookkeeping is
3172 * much higher than the benefits, so when the datapath holds a large number of
3173 * flows we impose some heuristics to decide which flows are likely to be worth
3176 flow_miss_should_make_facet(struct flow_miss *miss)
3178 struct dpif_backer *backer = miss->ofproto->backer;
3181 switch (flow_miss_model) {
3182 case OFPROTO_HANDLE_MISS_AUTO:
3184 case OFPROTO_HANDLE_MISS_WITH_FACETS:
3186 case OFPROTO_HANDLE_MISS_WITHOUT_FACETS:
3190 if (!backer->governor) {
3193 n_subfacets = hmap_count(&backer->subfacets);
3194 if (n_subfacets * 2 <= flow_eviction_threshold) {
3198 backer->governor = governor_create();
3201 hash = flow_hash_in_wildcards(&miss->flow, &miss->xout.wc, 0);
3202 return governor_should_install_flow(backer->governor, hash,
3203 miss->stats.n_packets);
3206 /* Handles 'miss', which matches 'facet'. May add any required datapath
3207 * operations to 'ops', incrementing '*n_ops' for each new op.
3209 * All of the packets in 'miss' are considered to have arrived at time
3210 * 'miss->stats.used'. This is really important only for new facets: if we
3211 * just called time_msec() here, then the new subfacet or its packets could
3212 * look (occasionally) as though it was used some time after the facet was
3213 * used. That can make a one-packet flow look like it has a nonzero duration,
3214 * which looks odd in e.g. NetFlow statistics. */
3216 handle_flow_miss_with_facet(struct flow_miss *miss, struct facet *facet,
3217 struct flow_miss_op *ops, size_t *n_ops)
3219 enum subfacet_path want_path;
3220 struct subfacet *subfacet;
3222 facet->packet_count += miss->stats.n_packets;
3223 facet->prev_packet_count += miss->stats.n_packets;
3224 facet->byte_count += miss->stats.n_bytes;
3225 facet->prev_byte_count += miss->stats.n_bytes;
3227 want_path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH;
3229 /* Don't install the flow if it's the result of the "userspace"
3230 * action for an already installed facet. This can occur when a
3231 * datapath flow with wildcards has a "userspace" action and flows
3232 * sent to userspace result in a different subfacet, which will then
3233 * be rejected as overlapping by the datapath. */
3234 if (miss->upcall_type == DPIF_UC_ACTION
3235 && !list_is_empty(&facet->subfacets)) {
3239 subfacet = subfacet_create(facet, miss);
3240 if (subfacet->path != want_path) {
3241 struct flow_miss_op *op = &ops[(*n_ops)++];
3242 struct dpif_flow_put *put = &op->dpif_op.u.flow_put;
3244 subfacet->path = want_path;
3246 ofpbuf_use_stack(&op->mask, &op->maskbuf, sizeof op->maskbuf);
3247 if (enable_megaflows) {
3248 odp_flow_key_from_mask(&op->mask, &facet->xout.wc.masks,
3249 &miss->flow, UINT32_MAX);
3252 op->xout_garbage = false;
3253 op->dpif_op.type = DPIF_OP_FLOW_PUT;
3254 op->subfacet = subfacet;
3255 put->flags = DPIF_FP_CREATE;
3256 put->key = miss->key;
3257 put->key_len = miss->key_len;
3258 put->mask = op->mask.data;
3259 put->mask_len = op->mask.size;
3261 if (want_path == SF_FAST_PATH) {
3262 put->actions = facet->xout.odp_actions.data;
3263 put->actions_len = facet->xout.odp_actions.size;
3265 compose_slow_path(facet->ofproto, &miss->flow, facet->xout.slow,
3266 op->slow_stub, sizeof op->slow_stub,
3267 &put->actions, &put->actions_len);
3273 /* Handles flow miss 'miss'. May add any required datapath operations
3274 * to 'ops', incrementing '*n_ops' for each new op. */
3276 handle_flow_miss(struct flow_miss *miss, struct flow_miss_op *ops,
3279 struct facet *facet;
3281 miss->ofproto->n_missed += miss->stats.n_packets;
3283 facet = facet_lookup_valid(miss->ofproto, &miss->flow);
3285 /* There does not exist a bijection between 'struct flow' and datapath
3286 * flow keys with fitness ODP_FIT_TO_LITTLE. This breaks a fundamental
3287 * assumption used throughout the facet and subfacet handling code.
3288 * Since we have to handle these misses in userspace anyway, we simply
3289 * skip facet creation, avoiding the problem altogether. */
3290 if (miss->key_fitness == ODP_FIT_TOO_LITTLE
3291 || !flow_miss_should_make_facet(miss)) {
3295 facet = facet_create(miss);
3297 handle_flow_miss_with_facet(miss, facet, ops, n_ops);
3300 static struct drop_key *
3301 drop_key_lookup(const struct dpif_backer *backer, const struct nlattr *key,
3304 struct drop_key *drop_key;
3306 HMAP_FOR_EACH_WITH_HASH (drop_key, hmap_node, hash_bytes(key, key_len, 0),
3307 &backer->drop_keys) {
3308 if (drop_key->key_len == key_len
3309 && !memcmp(drop_key->key, key, key_len)) {
3317 drop_key_clear(struct dpif_backer *backer)
3319 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15);
3320 struct drop_key *drop_key, *next;
3322 HMAP_FOR_EACH_SAFE (drop_key, next, hmap_node, &backer->drop_keys) {
3325 error = dpif_flow_del(backer->dpif, drop_key->key, drop_key->key_len,
3327 if (error && !VLOG_DROP_WARN(&rl)) {
3328 struct ds ds = DS_EMPTY_INITIALIZER;
3329 odp_flow_key_format(drop_key->key, drop_key->key_len, &ds);
3330 VLOG_WARN("Failed to delete drop key (%s) (%s)",
3331 ovs_strerror(error), ds_cstr(&ds));
3335 hmap_remove(&backer->drop_keys, &drop_key->hmap_node);
3336 drop_key_destroy(drop_key);
3339 udpif_drop_key_clear(backer->udpif);
3343 handle_flow_misses(struct dpif_backer *backer, struct flow_miss_batch *fmb)
3345 struct flow_miss_op flow_miss_ops[FLOW_MISS_MAX_BATCH];
3346 struct dpif_op *dpif_ops[FLOW_MISS_MAX_BATCH];
3347 struct flow_miss *miss;
3350 /* Process each element in the to-do list, constructing the set of
3351 * operations to batch. */
3353 HMAP_FOR_EACH (miss, hmap_node, &fmb->misses) {
3354 handle_flow_miss(miss, flow_miss_ops, &n_ops);
3356 ovs_assert(n_ops <= ARRAY_SIZE(flow_miss_ops));
3358 /* Execute batch. */
3359 for (i = 0; i < n_ops; i++) {
3360 dpif_ops[i] = &flow_miss_ops[i].dpif_op;
3362 dpif_operate(backer->dpif, dpif_ops, n_ops);
3364 for (i = 0; i < n_ops; i++) {
3365 if (dpif_ops[i]->error != 0
3366 && flow_miss_ops[i].dpif_op.type == DPIF_OP_FLOW_PUT
3367 && flow_miss_ops[i].subfacet) {
3368 struct subfacet *subfacet = flow_miss_ops[i].subfacet;
3370 COVERAGE_INC(subfacet_install_fail);
3372 /* Zero-out subfacet counters when installation failed, but
3373 * datapath reported hits. This should not happen and
3374 * indicates a bug, since if the datapath flow exists, we
3375 * should not be attempting to create a new subfacet. A
3376 * buggy datapath could trigger this, so just zero out the
3377 * counters and log an error. */
3378 if (subfacet->dp_packet_count || subfacet->dp_byte_count) {
3379 VLOG_ERR_RL(&rl, "failed to install subfacet for which "
3380 "datapath reported hits");
3381 subfacet->dp_packet_count = subfacet->dp_byte_count = 0;
3384 subfacet->path = SF_NOT_INSTALLED;
3390 handle_upcalls(struct dpif_backer *backer)
3392 struct flow_miss_batch *fmb;
3395 for (n_processed = 0; n_processed < FLOW_MISS_MAX_BATCH; n_processed++) {
3396 struct drop_key *drop_key = drop_key_next(backer->udpif);
3401 if (!drop_key_lookup(backer, drop_key->key, drop_key->key_len)) {
3402 hmap_insert(&backer->drop_keys, &drop_key->hmap_node,
3403 hash_bytes(drop_key->key, drop_key->key_len, 0));
3404 dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY,
3405 drop_key->key, drop_key->key_len,
3406 NULL, 0, NULL, 0, NULL);
3408 drop_key_destroy(drop_key);
3412 fmb = flow_miss_batch_next(backer->udpif);
3414 handle_flow_misses(backer, fmb);
3415 flow_miss_batch_destroy(fmb);
3419 /* Flow expiration. */
3421 static int subfacet_max_idle(const struct dpif_backer *);
3422 static void update_stats(struct dpif_backer *);
3423 static void rule_expire(struct rule_dpif *) OVS_REQUIRES(ofproto_mutex);
3424 static void expire_subfacets(struct dpif_backer *, int dp_max_idle);
3426 /* This function is called periodically by run(). Its job is to collect
3427 * updates for the flows that have been installed into the datapath, most
3428 * importantly when they last were used, and then use that information to
3429 * expire flows that have not been used recently.
3431 * Returns the number of milliseconds after which it should be called again. */
3433 expire(struct dpif_backer *backer)
3435 struct ofproto_dpif *ofproto;
3439 /* Periodically clear out the drop keys in an effort to keep them
3440 * relatively few. */
3441 drop_key_clear(backer);
3443 /* Update stats for each flow in the backer. */
3444 update_stats(backer);
3446 n_subfacets = hmap_count(&backer->subfacets);
3448 struct subfacet *subfacet;
3449 long long int total, now;
3453 HMAP_FOR_EACH (subfacet, hmap_node, &backer->subfacets) {
3454 total += now - subfacet->created;
3456 backer->avg_subfacet_life += total / n_subfacets;
3458 backer->avg_subfacet_life /= 2;
3460 backer->avg_n_subfacet += n_subfacets;
3461 backer->avg_n_subfacet /= 2;
3463 backer->max_n_subfacet = MAX(backer->max_n_subfacet, n_subfacets);
3465 max_idle = subfacet_max_idle(backer);
3466 expire_subfacets(backer, max_idle);
3468 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
3469 struct rule *rule, *next_rule;
3471 if (ofproto->backer != backer) {
3475 /* Expire OpenFlow flows whose idle_timeout or hard_timeout
3477 ovs_mutex_lock(&ofproto_mutex);
3478 LIST_FOR_EACH_SAFE (rule, next_rule, expirable,
3479 &ofproto->up.expirable) {
3480 rule_expire(rule_dpif_cast(rule));
3482 ovs_mutex_unlock(&ofproto_mutex);
3484 /* All outstanding data in existing flows has been accounted, so it's a
3485 * good time to do bond rebalancing. */
3486 if (ofproto->has_bonded_bundles) {
3487 struct ofbundle *bundle;
3489 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
3491 bond_rebalance(bundle->bond);
3497 return MIN(max_idle, 1000);
3500 /* Updates flow table statistics given that the datapath just reported 'stats'
3501 * as 'subfacet''s statistics. */
3503 update_subfacet_stats(struct subfacet *subfacet,
3504 const struct dpif_flow_stats *stats)
3506 struct facet *facet = subfacet->facet;
3507 struct dpif_flow_stats diff;
3509 diff.tcp_flags = stats->tcp_flags;
3510 diff.used = stats->used;
3512 if (stats->n_packets >= subfacet->dp_packet_count) {
3513 diff.n_packets = stats->n_packets - subfacet->dp_packet_count;
3515 VLOG_WARN_RL(&rl, "unexpected packet count from the datapath");
3519 if (stats->n_bytes >= subfacet->dp_byte_count) {
3520 diff.n_bytes = stats->n_bytes - subfacet->dp_byte_count;
3522 VLOG_WARN_RL(&rl, "unexpected byte count from datapath");
3526 facet->ofproto->n_hit += diff.n_packets;
3527 subfacet->dp_packet_count = stats->n_packets;
3528 subfacet->dp_byte_count = stats->n_bytes;
3529 subfacet_update_stats(subfacet, &diff);
3531 if (facet->accounted_bytes < facet->byte_count) {
3533 facet_account(facet);
3534 facet->accounted_bytes = facet->byte_count;
3538 /* 'key' with length 'key_len' bytes is a flow in 'dpif' that we know nothing
3539 * about, or a flow that shouldn't be installed but was anyway. Delete it. */
3541 delete_unexpected_flow(struct dpif_backer *backer,
3542 const struct nlattr *key, size_t key_len)
3544 if (!VLOG_DROP_WARN(&rl)) {
3548 odp_flow_key_format(key, key_len, &s);
3549 VLOG_WARN("unexpected flow: %s", ds_cstr(&s));
3553 COVERAGE_INC(facet_unexpected);
3554 dpif_flow_del(backer->dpif, key, key_len, NULL);
3557 /* Update 'packet_count', 'byte_count', and 'used' members of installed facets.
3559 * This function also pushes statistics updates to rules which each facet
3560 * resubmits into. Generally these statistics will be accurate. However, if a
3561 * facet changes the rule it resubmits into at some time in between
3562 * update_stats() runs, it is possible that statistics accrued to the
3563 * old rule will be incorrectly attributed to the new rule. This could be
3564 * avoided by calling update_stats() whenever rules are created or
3565 * deleted. However, the performance impact of making so many calls to the
3566 * datapath do not justify the benefit of having perfectly accurate statistics.
3568 * In addition, this function maintains per ofproto flow hit counts. The patch
3569 * port is not treated specially. e.g. A packet ingress from br0 patched into
3570 * br1 will increase the hit count of br0 by 1, however, does not affect
3571 * the hit or miss counts of br1.
3574 update_stats(struct dpif_backer *backer)
3576 const struct dpif_flow_stats *stats;
3577 struct dpif_flow_dump dump;
3578 const struct nlattr *key, *mask;
3579 size_t key_len, mask_len;
3581 dpif_flow_dump_start(&dump, backer->dpif);
3582 while (dpif_flow_dump_next(&dump, &key, &key_len,
3583 &mask, &mask_len, NULL, NULL, &stats)) {
3584 struct subfacet *subfacet;
3587 key_hash = odp_flow_key_hash(key, key_len);
3588 subfacet = subfacet_find(backer, key, key_len, key_hash);
3589 switch (subfacet ? subfacet->path : SF_NOT_INSTALLED) {
3591 update_subfacet_stats(subfacet, stats);
3595 /* Stats are updated per-packet. */
3598 case SF_NOT_INSTALLED:
3600 delete_unexpected_flow(backer, key, key_len);
3605 dpif_flow_dump_done(&dump);
3608 /* Calculates and returns the number of milliseconds of idle time after which
3609 * subfacets should expire from the datapath. When a subfacet expires, we fold
3610 * its statistics into its facet, and when a facet's last subfacet expires, we
3611 * fold its statistic into its rule. */
3613 subfacet_max_idle(const struct dpif_backer *backer)
3616 * Idle time histogram.
3618 * Most of the time a switch has a relatively small number of subfacets.
3619 * When this is the case we might as well keep statistics for all of them
3620 * in userspace and to cache them in the kernel datapath for performance as
3623 * As the number of subfacets increases, the memory required to maintain
3624 * statistics about them in userspace and in the kernel becomes
3625 * significant. However, with a large number of subfacets it is likely
3626 * that only a few of them are "heavy hitters" that consume a large amount
3627 * of bandwidth. At this point, only heavy hitters are worth caching in
3628 * the kernel and maintaining in userspaces; other subfacets we can
3631 * The technique used to compute the idle time is to build a histogram with
3632 * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each subfacet
3633 * that is installed in the kernel gets dropped in the appropriate bucket.
3634 * After the histogram has been built, we compute the cutoff so that only
3635 * the most-recently-used 1% of subfacets (but at least
3636 * flow_eviction_threshold flows) are kept cached. At least
3637 * the most-recently-used bucket of subfacets is kept, so actually an
3638 * arbitrary number of subfacets can be kept in any given expiration run
3639 * (though the next run will delete most of those unless they receive
3642 * This requires a second pass through the subfacets, in addition to the
3643 * pass made by update_stats(), because the former function never looks at
3644 * uninstallable subfacets.
3646 enum { BUCKET_WIDTH = 100 };
3647 enum { N_BUCKETS = 5000 / BUCKET_WIDTH };
3648 int buckets[N_BUCKETS] = { 0 };
3649 int total, subtotal, bucket;
3650 struct subfacet *subfacet;
3654 total = hmap_count(&backer->subfacets);
3655 if (total <= flow_eviction_threshold) {
3656 return N_BUCKETS * BUCKET_WIDTH;
3659 /* Build histogram. */
3661 HMAP_FOR_EACH (subfacet, hmap_node, &backer->subfacets) {
3662 long long int idle = now - subfacet->used;
3663 int bucket = (idle <= 0 ? 0
3664 : idle >= BUCKET_WIDTH * N_BUCKETS ? N_BUCKETS - 1
3665 : (unsigned int) idle / BUCKET_WIDTH);
3669 /* Find the first bucket whose flows should be expired. */
3670 subtotal = bucket = 0;
3672 subtotal += buckets[bucket++];
3673 } while (bucket < N_BUCKETS &&
3674 subtotal < MAX(flow_eviction_threshold, total / 100));
3676 if (VLOG_IS_DBG_ENABLED()) {
3680 ds_put_cstr(&s, "keep");
3681 for (i = 0; i < N_BUCKETS; i++) {
3683 ds_put_cstr(&s, ", drop");
3686 ds_put_format(&s, " %d:%d", i * BUCKET_WIDTH, buckets[i]);
3689 VLOG_INFO("%s (msec:count)", ds_cstr(&s));
3693 return bucket * BUCKET_WIDTH;
3697 expire_subfacets(struct dpif_backer *backer, int dp_max_idle)
3699 /* Cutoff time for most flows. */
3700 long long int normal_cutoff = time_msec() - dp_max_idle;
3702 /* We really want to keep flows for special protocols around, so use a more
3703 * conservative cutoff. */
3704 long long int special_cutoff = time_msec() - 10000;
3706 struct subfacet *subfacet, *next_subfacet;
3707 struct subfacet *batch[SUBFACET_DESTROY_MAX_BATCH];
3711 HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node,
3712 &backer->subfacets) {
3713 long long int cutoff;
3715 cutoff = (subfacet->facet->xout.slow & (SLOW_CFM | SLOW_BFD | SLOW_LACP
3719 if (subfacet->used < cutoff) {
3720 if (subfacet->path != SF_NOT_INSTALLED) {
3721 batch[n_batch++] = subfacet;
3722 if (n_batch >= SUBFACET_DESTROY_MAX_BATCH) {
3723 subfacet_destroy_batch(backer, batch, n_batch);
3727 subfacet_destroy(subfacet);
3733 subfacet_destroy_batch(backer, batch, n_batch);
3737 /* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules,
3738 * then delete it entirely. */
3740 rule_expire(struct rule_dpif *rule)
3741 OVS_REQUIRES(ofproto_mutex)
3743 uint16_t idle_timeout, hard_timeout;
3744 long long int now = time_msec();
3747 ovs_assert(!rule->up.pending);
3749 /* Has 'rule' expired? */
3750 ovs_mutex_lock(&rule->up.mutex);
3751 hard_timeout = rule->up.hard_timeout;
3752 idle_timeout = rule->up.idle_timeout;
3753 if (hard_timeout && now > rule->up.modified + hard_timeout * 1000) {
3754 reason = OFPRR_HARD_TIMEOUT;
3755 } else if (idle_timeout && now > rule->up.used + idle_timeout * 1000) {
3756 reason = OFPRR_IDLE_TIMEOUT;
3760 ovs_mutex_unlock(&rule->up.mutex);
3763 COVERAGE_INC(ofproto_dpif_expired);
3764 ofproto_rule_expire(&rule->up, reason);
3770 /* Creates and returns a new facet based on 'miss'.
3772 * The caller must already have determined that no facet with an identical
3773 * 'miss->flow' exists in 'miss->ofproto'.
3775 * 'rule' and 'xout' must have been created based on 'miss'.
3777 * 'facet'' statistics are initialized based on 'stats'.
3779 * The facet will initially have no subfacets. The caller should create (at
3780 * least) one subfacet with subfacet_create(). */
3781 static struct facet *
3782 facet_create(const struct flow_miss *miss)
3784 struct ofproto_dpif *ofproto = miss->ofproto;
3785 struct facet *facet;
3788 COVERAGE_INC(facet_create);
3789 facet = xzalloc(sizeof *facet);
3790 facet->ofproto = miss->ofproto;
3791 facet->used = miss->stats.used;
3792 facet->flow = miss->flow;
3793 facet->learn_rl = time_msec() + 500;
3795 list_init(&facet->subfacets);
3796 netflow_flow_init(&facet->nf_flow);
3797 netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, facet->used);
3799 xlate_out_copy(&facet->xout, &miss->xout);
3801 match_init(&match, &facet->flow, &facet->xout.wc);
3802 cls_rule_init(&facet->cr, &match, OFP_DEFAULT_PRIORITY);
3803 ovs_rwlock_wrlock(&ofproto->facets.rwlock);
3804 classifier_insert(&ofproto->facets, &facet->cr);
3805 ovs_rwlock_unlock(&ofproto->facets.rwlock);
3807 facet->nf_flow.output_iface = facet->xout.nf_output_iface;
3812 facet_free(struct facet *facet)
3815 xlate_out_uninit(&facet->xout);
3820 /* Executes, within 'ofproto', the actions in 'rule' or 'ofpacts' on 'packet'.
3821 * 'flow' must reflect the data in 'packet'. */
3823 ofproto_dpif_execute_actions(struct ofproto_dpif *ofproto,
3824 const struct flow *flow,
3825 struct rule_dpif *rule,
3826 const struct ofpact *ofpacts, size_t ofpacts_len,
3827 struct ofpbuf *packet)
3829 struct odputil_keybuf keybuf;
3830 struct dpif_flow_stats stats;
3831 struct xlate_out xout;
3832 struct xlate_in xin;
3837 ovs_assert((rule != NULL) != (ofpacts != NULL));
3839 dpif_flow_stats_extract(flow, packet, time_msec(), &stats);
3841 rule_dpif_credit_stats(rule, &stats);
3844 xlate_in_init(&xin, ofproto, flow, rule, stats.tcp_flags, packet);
3845 xin.ofpacts = ofpacts;
3846 xin.ofpacts_len = ofpacts_len;
3847 xin.resubmit_stats = &stats;
3848 xlate_actions(&xin, &xout);
3850 ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
3851 in_port = flow->in_port.ofp_port;
3852 if (in_port == OFPP_NONE) {
3853 in_port = OFPP_LOCAL;
3855 odp_flow_key_from_flow(&key, flow, ofp_port_to_odp_port(ofproto, in_port));
3857 error = dpif_execute(ofproto->backer->dpif, key.data, key.size,
3858 xout.odp_actions.data, xout.odp_actions.size, packet,
3859 (xout.slow & SLOW_ACTION) != 0);
3860 xlate_out_uninit(&xout);
3865 /* Remove 'facet' from its ofproto and free up the associated memory:
3867 * - If 'facet' was installed in the datapath, uninstalls it and updates its
3868 * rule's statistics, via subfacet_uninstall().
3870 * - Removes 'facet' from its rule and from ofproto->facets.
3873 facet_remove(struct facet *facet)
3875 struct subfacet *subfacet, *next_subfacet;
3877 COVERAGE_INC(facet_remove);
3878 ovs_assert(!list_is_empty(&facet->subfacets));
3880 /* First uninstall all of the subfacets to get final statistics. */
3881 LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
3882 subfacet_uninstall(subfacet);
3885 /* Flush the final stats to the rule.
3887 * This might require us to have at least one subfacet around so that we
3888 * can use its actions for accounting in facet_account(), which is why we
3889 * have uninstalled but not yet destroyed the subfacets. */
3890 facet_flush_stats(facet);
3892 /* Now we're really all done so destroy everything. */
3893 LIST_FOR_EACH_SAFE (subfacet, next_subfacet, list_node,
3894 &facet->subfacets) {
3895 subfacet_destroy__(subfacet);
3897 ovs_rwlock_wrlock(&facet->ofproto->facets.rwlock);
3898 classifier_remove(&facet->ofproto->facets, &facet->cr);
3899 ovs_rwlock_unlock(&facet->ofproto->facets.rwlock);
3900 cls_rule_destroy(&facet->cr);
3904 /* Feed information from 'facet' back into the learning table to keep it in
3905 * sync with what is actually flowing through the datapath. */
3907 facet_learn(struct facet *facet)
3909 long long int now = time_msec();
3911 if (!facet->xout.has_fin_timeout && now < facet->learn_rl) {
3915 facet->learn_rl = now + 500;
3917 if (!facet->xout.has_learn
3918 && !facet->xout.has_normal
3919 && (!facet->xout.has_fin_timeout
3920 || !(facet->tcp_flags & (TCP_FIN | TCP_RST)))) {
3924 facet_push_stats(facet, true);
3928 facet_account(struct facet *facet)
3930 const struct nlattr *a;
3935 if (!facet->xout.has_normal || !facet->ofproto->has_bonded_bundles) {
3938 n_bytes = facet->byte_count - facet->accounted_bytes;
3940 /* This loop feeds byte counters to bond_account() for rebalancing to use
3941 * as a basis. We also need to track the actual VLAN on which the packet
3942 * is going to be sent to ensure that it matches the one passed to
3943 * bond_choose_output_slave(). (Otherwise, we will account to the wrong
3946 * We use the actions from an arbitrary subfacet because they should all
3947 * be equally valid for our purpose. */
3948 vlan_tci = facet->flow.vlan_tci;
3949 NL_ATTR_FOR_EACH_UNSAFE (a, left, facet->xout.odp_actions.data,
3950 facet->xout.odp_actions.size) {
3951 const struct ovs_action_push_vlan *vlan;
3952 struct ofport_dpif *port;
3954 switch (nl_attr_type(a)) {
3955 case OVS_ACTION_ATTR_OUTPUT:
3956 port = get_odp_port(facet->ofproto, nl_attr_get_odp_port(a));
3957 if (port && port->bundle && port->bundle->bond) {
3958 bond_account(port->bundle->bond, &facet->flow,
3959 vlan_tci_to_vid(vlan_tci), n_bytes);
3963 case OVS_ACTION_ATTR_POP_VLAN:
3964 vlan_tci = htons(0);
3967 case OVS_ACTION_ATTR_PUSH_VLAN:
3968 vlan = nl_attr_get(a);
3969 vlan_tci = vlan->vlan_tci;
3975 /* Returns true if the only action for 'facet' is to send to the controller.
3976 * (We don't report NetFlow expiration messages for such facets because they
3977 * are just part of the control logic for the network, not real traffic). */
3979 facet_is_controller_flow(struct facet *facet)
3982 struct ofproto_dpif *ofproto = facet->ofproto;
3983 const struct ofpact *ofpacts;
3984 struct rule_actions *actions;
3985 struct rule_dpif *rule;
3989 rule_dpif_lookup(ofproto, &facet->flow, NULL, &rule);
3990 actions = rule_dpif_get_actions(rule);
3991 rule_dpif_unref(rule);
3993 ofpacts_len = actions->ofpacts_len;
3994 ofpacts = actions->ofpacts;
3995 is_controller = ofpacts_len > 0
3996 && ofpacts->type == OFPACT_CONTROLLER
3997 && ofpact_next(ofpacts) >= ofpact_end(ofpacts, ofpacts_len);
3998 rule_actions_unref(actions);
4000 return is_controller;
4005 /* Folds all of 'facet''s statistics into its rule. Also updates the
4006 * accounting ofhook and emits a NetFlow expiration if appropriate. All of
4007 * 'facet''s statistics in the datapath should have been zeroed and folded into
4008 * its packet and byte counts before this function is called. */
4010 facet_flush_stats(struct facet *facet)
4012 struct ofproto_dpif *ofproto = facet->ofproto;
4013 struct subfacet *subfacet;
4015 LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
4016 ovs_assert(!subfacet->dp_byte_count);
4017 ovs_assert(!subfacet->dp_packet_count);
4020 facet_push_stats(facet, false);
4021 if (facet->accounted_bytes < facet->byte_count) {
4022 facet_account(facet);
4023 facet->accounted_bytes = facet->byte_count;
4026 if (ofproto->netflow && !facet_is_controller_flow(facet)) {
4027 struct ofexpired expired;
4028 expired.flow = facet->flow;
4029 expired.packet_count = facet->packet_count;
4030 expired.byte_count = facet->byte_count;
4031 expired.used = facet->used;
4032 netflow_expire(ofproto->netflow, &facet->nf_flow, &expired);
4035 /* Reset counters to prevent double counting if 'facet' ever gets
4037 facet_reset_counters(facet);
4039 netflow_flow_clear(&facet->nf_flow);
4040 facet->tcp_flags = 0;
4043 /* Searches 'ofproto''s table of facets for one which would be responsible for
4044 * 'flow'. Returns it if found, otherwise a null pointer.
4046 * The returned facet might need revalidation; use facet_lookup_valid()
4047 * instead if that is important. */
4048 static struct facet *
4049 facet_find(struct ofproto_dpif *ofproto, const struct flow *flow)
4051 struct cls_rule *cr;
4053 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
4054 cr = classifier_lookup(&ofproto->facets, flow, NULL);
4055 ovs_rwlock_unlock(&ofproto->facets.rwlock);
4056 return cr ? CONTAINER_OF(cr, struct facet, cr) : NULL;
4059 /* Searches 'ofproto''s table of facets for one capable that covers
4060 * 'flow'. Returns it if found, otherwise a null pointer.
4062 * The returned facet is guaranteed to be valid. */
4063 static struct facet *
4064 facet_lookup_valid(struct ofproto_dpif *ofproto, const struct flow *flow)
4066 struct facet *facet;
4068 facet = facet_find(ofproto, flow);
4070 && ofproto->backer->need_revalidate
4071 && !facet_revalidate(facet)) {
4079 facet_check_consistency(struct facet *facet)
4081 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15);
4083 struct xlate_out xout;
4084 struct xlate_in xin;
4087 /* Check the datapath actions for consistency. */
4088 xlate_in_init(&xin, facet->ofproto, &facet->flow, NULL, 0, NULL);
4089 xlate_actions(&xin, &xout);
4091 ok = ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)
4092 && facet->xout.slow == xout.slow;
4093 if (!ok && !VLOG_DROP_WARN(&rl)) {
4094 struct ds s = DS_EMPTY_INITIALIZER;
4096 flow_format(&s, &facet->flow);
4097 ds_put_cstr(&s, ": inconsistency in facet");
4099 if (!ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)) {
4100 ds_put_cstr(&s, " (actions were: ");
4101 format_odp_actions(&s, facet->xout.odp_actions.data,
4102 facet->xout.odp_actions.size);
4103 ds_put_cstr(&s, ") (correct actions: ");
4104 format_odp_actions(&s, xout.odp_actions.data,
4105 xout.odp_actions.size);
4106 ds_put_char(&s, ')');
4109 if (facet->xout.slow != xout.slow) {
4110 ds_put_format(&s, " slow path incorrect. should be %d", xout.slow);
4115 xlate_out_uninit(&xout);
4120 /* Re-searches the classifier for 'facet':
4122 * - If the rule found is different from 'facet''s current rule, moves
4123 * 'facet' to the new rule and recompiles its actions.
4125 * - If the rule found is the same as 'facet''s current rule, leaves 'facet'
4126 * where it is and recompiles its actions anyway.
4128 * - If any of 'facet''s subfacets correspond to a new flow according to
4129 * xlate_receive(), 'facet' is removed.
4131 * Returns true if 'facet' is still valid. False if 'facet' was removed. */
4133 facet_revalidate(struct facet *facet)
4135 struct ofproto_dpif *ofproto = facet->ofproto;
4136 struct rule_dpif *new_rule;
4137 struct subfacet *subfacet;
4138 struct flow_wildcards wc;
4139 struct xlate_out xout;
4140 struct xlate_in xin;
4142 COVERAGE_INC(facet_revalidate);
4144 /* Check that child subfacets still correspond to this facet. Tunnel
4145 * configuration changes could cause a subfacet's OpenFlow in_port to
4147 LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
4148 struct ofproto_dpif *recv_ofproto;
4149 struct flow recv_flow;
4152 error = xlate_receive(ofproto->backer, NULL, subfacet->key,
4153 subfacet->key_len, &recv_flow, NULL,
4154 &recv_ofproto, NULL);
4156 || recv_ofproto != ofproto
4157 || facet != facet_find(ofproto, &recv_flow)) {
4158 facet_remove(facet);
4163 flow_wildcards_init_catchall(&wc);
4164 rule_dpif_lookup(ofproto, &facet->flow, &wc, &new_rule);
4166 /* Calculate new datapath actions.
4168 * We do not modify any 'facet' state yet, because we might need to, e.g.,
4169 * emit a NetFlow expiration and, if so, we need to have the old state
4170 * around to properly compose it. */
4171 xlate_in_init(&xin, ofproto, &facet->flow, new_rule, 0, NULL);
4172 xlate_actions(&xin, &xout);
4173 flow_wildcards_or(&xout.wc, &xout.wc, &wc);
4175 /* A facet's slow path reason should only change under dramatic
4176 * circumstances. Rather than try to update everything, it's simpler to
4177 * remove the facet and start over.
4179 * More importantly, if a facet's wildcards change, it will be relatively
4180 * difficult to figure out if its subfacets still belong to it, and if not
4181 * which facet they may belong to. Again, to avoid the complexity, we
4182 * simply give up instead. */
4183 if (facet->xout.slow != xout.slow
4184 || memcmp(&facet->xout.wc, &xout.wc, sizeof xout.wc)) {
4185 facet_remove(facet);
4186 xlate_out_uninit(&xout);
4187 rule_dpif_unref(new_rule);
4191 if (!ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)) {
4192 LIST_FOR_EACH(subfacet, list_node, &facet->subfacets) {
4193 if (subfacet->path == SF_FAST_PATH) {
4194 struct dpif_flow_stats stats;
4196 subfacet_install(subfacet, &xout.odp_actions, &stats);
4197 subfacet_update_stats(subfacet, &stats);
4201 facet_flush_stats(facet);
4203 ofpbuf_clear(&facet->xout.odp_actions);
4204 ofpbuf_put(&facet->xout.odp_actions, xout.odp_actions.data,
4205 xout.odp_actions.size);
4208 /* Update 'facet' now that we've taken care of all the old state. */
4209 facet->xout.slow = xout.slow;
4210 facet->xout.has_learn = xout.has_learn;
4211 facet->xout.has_normal = xout.has_normal;
4212 facet->xout.has_fin_timeout = xout.has_fin_timeout;
4213 facet->xout.nf_output_iface = xout.nf_output_iface;
4214 facet->xout.mirrors = xout.mirrors;
4215 facet->nf_flow.output_iface = facet->xout.nf_output_iface;
4217 ovs_mutex_lock(&new_rule->up.mutex);
4218 facet->used = MAX(facet->used, new_rule->up.created);
4219 ovs_mutex_unlock(&new_rule->up.mutex);
4221 xlate_out_uninit(&xout);
4222 rule_dpif_unref(new_rule);
4227 facet_reset_counters(struct facet *facet)
4229 facet->packet_count = 0;
4230 facet->byte_count = 0;
4231 facet->prev_packet_count = 0;
4232 facet->prev_byte_count = 0;
4233 facet->accounted_bytes = 0;
4237 flow_push_stats(struct ofproto_dpif *ofproto, struct flow *flow,
4238 struct dpif_flow_stats *stats, bool may_learn)
4240 struct ofport_dpif *in_port;
4241 struct xlate_in xin;
4243 in_port = get_ofp_port(ofproto, flow->in_port.ofp_port);
4244 if (in_port && in_port->is_tunnel) {
4245 netdev_vport_inc_rx(in_port->up.netdev, stats);
4248 xlate_in_init(&xin, ofproto, flow, NULL, stats->tcp_flags, NULL);
4249 xin.resubmit_stats = stats;
4250 xin.may_learn = may_learn;
4251 xlate_actions_for_side_effects(&xin);
4255 facet_push_stats(struct facet *facet, bool may_learn)
4257 struct dpif_flow_stats stats;
4259 ovs_assert(facet->packet_count >= facet->prev_packet_count);
4260 ovs_assert(facet->byte_count >= facet->prev_byte_count);
4261 ovs_assert(facet->used >= facet->prev_used);
4263 stats.n_packets = facet->packet_count - facet->prev_packet_count;
4264 stats.n_bytes = facet->byte_count - facet->prev_byte_count;
4265 stats.used = facet->used;
4266 stats.tcp_flags = facet->tcp_flags;
4268 if (may_learn || stats.n_packets || facet->used > facet->prev_used) {
4269 facet->prev_packet_count = facet->packet_count;
4270 facet->prev_byte_count = facet->byte_count;
4271 facet->prev_used = facet->used;
4273 netflow_flow_update_time(facet->ofproto->netflow, &facet->nf_flow,
4275 netflow_flow_update_flags(&facet->nf_flow, facet->tcp_flags);
4276 mirror_update_stats(facet->ofproto->mbridge, facet->xout.mirrors,
4277 stats.n_packets, stats.n_bytes);
4278 flow_push_stats(facet->ofproto, &facet->flow, &stats, may_learn);
4283 push_all_stats__(bool run_fast)
4285 static long long int rl = LLONG_MIN;
4286 struct ofproto_dpif *ofproto;
4288 if (time_msec() < rl) {
4292 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
4293 struct cls_cursor cursor;
4294 struct facet *facet;
4296 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
4297 cls_cursor_init(&cursor, &ofproto->facets, NULL);
4298 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
4299 facet_push_stats(facet, false);
4304 ovs_rwlock_unlock(&ofproto->facets.rwlock);
4307 rl = time_msec() + 100;
4311 push_all_stats(void)
4313 push_all_stats__(true);
4317 rule_dpif_credit_stats(struct rule_dpif *rule,
4318 const struct dpif_flow_stats *stats)
4320 ovs_mutex_lock(&rule->stats_mutex);
4321 rule->packet_count += stats->n_packets;
4322 rule->byte_count += stats->n_bytes;
4323 rule->up.used = MAX(rule->up.used, stats->used);
4324 ovs_mutex_unlock(&rule->stats_mutex);
4328 rule_dpif_is_fail_open(const struct rule_dpif *rule)
4330 return is_fail_open_rule(&rule->up);
4334 rule_dpif_is_table_miss(const struct rule_dpif *rule)
4336 return rule_is_table_miss(&rule->up);
4340 rule_dpif_get_flow_cookie(const struct rule_dpif *rule)
4341 OVS_REQUIRES(rule->up.mutex)
4343 return rule->up.flow_cookie;
4347 rule_dpif_reduce_timeouts(struct rule_dpif *rule, uint16_t idle_timeout,
4348 uint16_t hard_timeout)
4350 ofproto_rule_reduce_timeouts(&rule->up, idle_timeout, hard_timeout);
4353 /* Returns 'rule''s actions. The caller owns a reference on the returned
4354 * actions and must eventually release it (with rule_actions_unref()) to avoid
4356 struct rule_actions *
4357 rule_dpif_get_actions(const struct rule_dpif *rule)
4359 return rule_get_actions(&rule->up);
4364 static struct subfacet *
4365 subfacet_find(struct dpif_backer *backer, const struct nlattr *key,
4366 size_t key_len, uint32_t key_hash)
4368 struct subfacet *subfacet;
4370 HMAP_FOR_EACH_WITH_HASH (subfacet, hmap_node, key_hash,
4371 &backer->subfacets) {
4372 if (subfacet->key_len == key_len
4373 && !memcmp(key, subfacet->key, key_len)) {
4381 /* Searches 'facet' (within 'ofproto') for a subfacet with the specified
4382 * 'key_fitness', 'key', and 'key_len' members in 'miss'. Returns the
4383 * existing subfacet if there is one, otherwise creates and returns a
4385 static struct subfacet *
4386 subfacet_create(struct facet *facet, struct flow_miss *miss)
4388 struct dpif_backer *backer = miss->ofproto->backer;
4389 const struct nlattr *key = miss->key;
4390 size_t key_len = miss->key_len;
4392 struct subfacet *subfacet;
4394 key_hash = odp_flow_key_hash(key, key_len);
4396 if (list_is_empty(&facet->subfacets)) {
4397 subfacet = &facet->one_subfacet;
4399 subfacet = subfacet_find(backer, key, key_len, key_hash);
4401 if (subfacet->facet == facet) {
4405 /* This shouldn't happen. */
4406 VLOG_ERR_RL(&rl, "subfacet with wrong facet");
4407 subfacet_destroy(subfacet);
4410 subfacet = xmalloc(sizeof *subfacet);
4413 COVERAGE_INC(subfacet_create);
4414 hmap_insert(&backer->subfacets, &subfacet->hmap_node, key_hash);
4415 list_push_back(&facet->subfacets, &subfacet->list_node);
4416 subfacet->facet = facet;
4417 subfacet->key = xmemdup(key, key_len);
4418 subfacet->key_len = key_len;
4419 subfacet->used = miss->stats.used;
4420 subfacet->created = subfacet->used;
4421 subfacet->dp_packet_count = 0;
4422 subfacet->dp_byte_count = 0;
4423 subfacet->path = SF_NOT_INSTALLED;
4424 subfacet->backer = backer;
4429 /* Uninstalls 'subfacet' from the datapath, if it is installed, removes it from
4430 * its facet within 'ofproto', and frees it. */
4432 subfacet_destroy__(struct subfacet *subfacet)
4434 struct facet *facet = subfacet->facet;
4436 COVERAGE_INC(subfacet_destroy);
4437 subfacet_uninstall(subfacet);
4438 hmap_remove(&subfacet->backer->subfacets, &subfacet->hmap_node);
4439 list_remove(&subfacet->list_node);
4440 free(subfacet->key);
4441 if (subfacet != &facet->one_subfacet) {
4446 /* Destroys 'subfacet', as with subfacet_destroy__(), and then if this was the
4447 * last remaining subfacet in its facet destroys the facet too. */
4449 subfacet_destroy(struct subfacet *subfacet)
4451 struct facet *facet = subfacet->facet;
4453 if (list_is_singleton(&facet->subfacets)) {
4454 /* facet_remove() needs at least one subfacet (it will remove it). */
4455 facet_remove(facet);
4457 subfacet_destroy__(subfacet);
4462 subfacet_destroy_batch(struct dpif_backer *backer,
4463 struct subfacet **subfacets, int n)
4465 struct dpif_op ops[SUBFACET_DESTROY_MAX_BATCH];
4466 struct dpif_op *opsp[SUBFACET_DESTROY_MAX_BATCH];
4467 struct dpif_flow_stats stats[SUBFACET_DESTROY_MAX_BATCH];
4470 for (i = 0; i < n; i++) {
4471 ops[i].type = DPIF_OP_FLOW_DEL;
4472 ops[i].u.flow_del.key = subfacets[i]->key;
4473 ops[i].u.flow_del.key_len = subfacets[i]->key_len;
4474 ops[i].u.flow_del.stats = &stats[i];
4478 dpif_operate(backer->dpif, opsp, n);
4479 for (i = 0; i < n; i++) {
4480 subfacet_reset_dp_stats(subfacets[i], &stats[i]);
4481 subfacets[i]->path = SF_NOT_INSTALLED;
4482 subfacet_destroy(subfacets[i]);
4487 /* Updates 'subfacet''s datapath flow, setting its actions to 'actions_len'
4488 * bytes of actions in 'actions'. If 'stats' is non-null, statistics counters
4489 * in the datapath will be zeroed and 'stats' will be updated with traffic new
4490 * since 'subfacet' was last updated.
4492 * Returns 0 if successful, otherwise a positive errno value. */
4494 subfacet_install(struct subfacet *subfacet, const struct ofpbuf *odp_actions,
4495 struct dpif_flow_stats *stats)
4497 struct facet *facet = subfacet->facet;
4498 enum subfacet_path path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH;
4499 const struct nlattr *actions = odp_actions->data;
4500 size_t actions_len = odp_actions->size;
4501 struct odputil_keybuf maskbuf;
4504 uint64_t slow_path_stub[128 / 8];
4505 enum dpif_flow_put_flags flags;
4508 flags = subfacet->path == SF_NOT_INSTALLED ? DPIF_FP_CREATE
4511 flags |= DPIF_FP_ZERO_STATS;
4514 if (path == SF_SLOW_PATH) {
4515 compose_slow_path(facet->ofproto, &facet->flow, facet->xout.slow,
4516 slow_path_stub, sizeof slow_path_stub,
4517 &actions, &actions_len);
4520 ofpbuf_use_stack(&mask, &maskbuf, sizeof maskbuf);
4521 if (enable_megaflows) {
4522 odp_flow_key_from_mask(&mask, &facet->xout.wc.masks,
4523 &facet->flow, UINT32_MAX);
4526 ret = dpif_flow_put(subfacet->backer->dpif, flags, subfacet->key,
4527 subfacet->key_len, mask.data, mask.size,
4528 actions, actions_len, stats);
4531 subfacet_reset_dp_stats(subfacet, stats);
4535 COVERAGE_INC(subfacet_install_fail);
4537 subfacet->path = path;
4542 /* If 'subfacet' is installed in the datapath, uninstalls it. */
4544 subfacet_uninstall(struct subfacet *subfacet)
4546 if (subfacet->path != SF_NOT_INSTALLED) {
4547 struct ofproto_dpif *ofproto = subfacet->facet->ofproto;
4548 struct dpif_flow_stats stats;
4551 error = dpif_flow_del(ofproto->backer->dpif, subfacet->key,
4552 subfacet->key_len, &stats);
4553 subfacet_reset_dp_stats(subfacet, &stats);
4555 subfacet_update_stats(subfacet, &stats);
4557 subfacet->path = SF_NOT_INSTALLED;
4559 ovs_assert(subfacet->dp_packet_count == 0);
4560 ovs_assert(subfacet->dp_byte_count == 0);
4564 /* Resets 'subfacet''s datapath statistics counters. This should be called
4565 * when 'subfacet''s statistics are cleared in the datapath. If 'stats' is
4566 * non-null, it should contain the statistics returned by dpif when 'subfacet'
4567 * was reset in the datapath. 'stats' will be modified to include only
4568 * statistics new since 'subfacet' was last updated. */
4570 subfacet_reset_dp_stats(struct subfacet *subfacet,
4571 struct dpif_flow_stats *stats)
4574 && subfacet->dp_packet_count <= stats->n_packets
4575 && subfacet->dp_byte_count <= stats->n_bytes) {
4576 stats->n_packets -= subfacet->dp_packet_count;
4577 stats->n_bytes -= subfacet->dp_byte_count;
4580 subfacet->dp_packet_count = 0;
4581 subfacet->dp_byte_count = 0;
4584 /* Folds the statistics from 'stats' into the counters in 'subfacet'.
4586 * Because of the meaning of a subfacet's counters, it only makes sense to do
4587 * this if 'stats' are not tracked in the datapath, that is, if 'stats'
4588 * represents a packet that was sent by hand or if it represents statistics
4589 * that have been cleared out of the datapath. */
4591 subfacet_update_stats(struct subfacet *subfacet,
4592 const struct dpif_flow_stats *stats)
4594 if (stats->n_packets || stats->used > subfacet->used) {
4595 struct facet *facet = subfacet->facet;
4597 subfacet->used = MAX(subfacet->used, stats->used);
4598 facet->used = MAX(facet->used, stats->used);
4599 facet->packet_count += stats->n_packets;
4600 facet->byte_count += stats->n_bytes;
4601 facet->tcp_flags |= stats->tcp_flags;
4607 /* Lookup 'flow' in 'ofproto''s classifier. If 'wc' is non-null, sets
4608 * the fields that were relevant as part of the lookup. */
4610 rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow,
4611 struct flow_wildcards *wc, struct rule_dpif **rule)
4613 struct ofport_dpif *port;
4615 if (rule_dpif_lookup_in_table(ofproto, flow, wc, 0, rule)) {
4618 port = get_ofp_port(ofproto, flow->in_port.ofp_port);
4620 VLOG_WARN_RL(&rl, "packet-in on unknown OpenFlow port %"PRIu16,
4621 flow->in_port.ofp_port);
4624 choose_miss_rule(port ? port->up.pp.config : 0, ofproto->miss_rule,
4625 ofproto->no_packet_in_rule, rule);
4629 rule_dpif_lookup_in_table(struct ofproto_dpif *ofproto,
4630 const struct flow *flow, struct flow_wildcards *wc,
4631 uint8_t table_id, struct rule_dpif **rule)
4633 const struct cls_rule *cls_rule;
4634 struct classifier *cls;
4638 if (table_id >= N_TABLES) {
4643 memset(&wc->masks.dl_type, 0xff, sizeof wc->masks.dl_type);
4644 wc->masks.nw_frag |= FLOW_NW_FRAG_MASK;
4647 cls = &ofproto->up.tables[table_id].cls;
4648 ovs_rwlock_rdlock(&cls->rwlock);
4649 frag = (flow->nw_frag & FLOW_NW_FRAG_ANY) != 0;
4650 if (frag && ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
4651 /* We must pretend that transport ports are unavailable. */
4652 struct flow ofpc_normal_flow = *flow;
4653 ofpc_normal_flow.tp_src = htons(0);
4654 ofpc_normal_flow.tp_dst = htons(0);
4655 cls_rule = classifier_lookup(cls, &ofpc_normal_flow, wc);
4656 } else if (frag && ofproto->up.frag_handling == OFPC_FRAG_DROP) {
4657 cls_rule = &ofproto->drop_frags_rule->up.cr;
4658 /* Frag mask in wc already set above. */
4660 cls_rule = classifier_lookup(cls, flow, wc);
4663 *rule = rule_dpif_cast(rule_from_cls_rule(cls_rule));
4664 rule_dpif_ref(*rule);
4665 ovs_rwlock_unlock(&cls->rwlock);
4667 return *rule != NULL;
4670 /* Given a port configuration (specified as zero if there's no port), chooses
4671 * which of 'miss_rule' and 'no_packet_in_rule' should be used in case of a
4672 * flow table miss. */
4674 choose_miss_rule(enum ofputil_port_config config, struct rule_dpif *miss_rule,
4675 struct rule_dpif *no_packet_in_rule, struct rule_dpif **rule)
4677 *rule = config & OFPUTIL_PC_NO_PACKET_IN ? no_packet_in_rule : miss_rule;
4678 rule_dpif_ref(*rule);
4682 rule_dpif_ref(struct rule_dpif *rule)
4685 ofproto_rule_ref(&rule->up);
4690 rule_dpif_unref(struct rule_dpif *rule)
4693 ofproto_rule_unref(&rule->up);
4698 complete_operation(struct rule_dpif *rule)
4699 OVS_REQUIRES(ofproto_mutex)
4701 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
4703 ofproto->backer->need_revalidate = REV_FLOW_TABLE;
4704 ofoperation_complete(rule->up.pending, 0);
4707 static struct rule_dpif *rule_dpif_cast(const struct rule *rule)
4709 return rule ? CONTAINER_OF(rule, struct rule_dpif, up) : NULL;
4712 static struct rule *
4715 struct rule_dpif *rule = xmalloc(sizeof *rule);
4720 rule_dealloc(struct rule *rule_)
4722 struct rule_dpif *rule = rule_dpif_cast(rule_);
4727 rule_construct(struct rule *rule_)
4729 struct rule_dpif *rule = rule_dpif_cast(rule_);
4730 ovs_mutex_init(&rule->stats_mutex);
4731 ovs_mutex_lock(&rule->stats_mutex);
4732 rule->packet_count = 0;
4733 rule->byte_count = 0;
4734 ovs_mutex_unlock(&rule->stats_mutex);
4739 rule_insert(struct rule *rule_)
4740 OVS_REQUIRES(ofproto_mutex)
4742 struct rule_dpif *rule = rule_dpif_cast(rule_);
4743 complete_operation(rule);
4747 rule_delete(struct rule *rule_)
4748 OVS_REQUIRES(ofproto_mutex)
4750 struct rule_dpif *rule = rule_dpif_cast(rule_);
4751 complete_operation(rule);
4755 rule_destruct(struct rule *rule_)
4757 struct rule_dpif *rule = rule_dpif_cast(rule_);
4758 ovs_mutex_destroy(&rule->stats_mutex);
4762 rule_get_stats(struct rule *rule_, uint64_t *packets, uint64_t *bytes)
4764 struct rule_dpif *rule = rule_dpif_cast(rule_);
4766 /* push_all_stats() can handle flow misses which, when using the learn
4767 * action, can cause rules to be added and deleted. This can corrupt our
4768 * caller's datastructures which assume that rule_get_stats() doesn't have
4769 * an impact on the flow table. To be safe, we disable miss handling. */
4770 push_all_stats__(false);
4772 /* Start from historical data for 'rule' itself that are no longer tracked
4773 * in facets. This counts, for example, facets that have expired. */
4774 ovs_mutex_lock(&rule->stats_mutex);
4775 *packets = rule->packet_count;
4776 *bytes = rule->byte_count;
4777 ovs_mutex_unlock(&rule->stats_mutex);
4781 rule_dpif_execute(struct rule_dpif *rule, const struct flow *flow,
4782 struct ofpbuf *packet)
4784 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
4786 ofproto_dpif_execute_actions(ofproto, flow, rule, NULL, 0, packet);
4790 rule_execute(struct rule *rule, const struct flow *flow,
4791 struct ofpbuf *packet)
4793 rule_dpif_execute(rule_dpif_cast(rule), flow, packet);
4794 ofpbuf_delete(packet);
4799 rule_modify_actions(struct rule *rule_, bool reset_counters)
4800 OVS_REQUIRES(ofproto_mutex)
4802 struct rule_dpif *rule = rule_dpif_cast(rule_);
4804 if (reset_counters) {
4805 ovs_mutex_lock(&rule->stats_mutex);
4806 rule->packet_count = 0;
4807 rule->byte_count = 0;
4808 ovs_mutex_unlock(&rule->stats_mutex);
4811 complete_operation(rule);
4814 static struct group_dpif *group_dpif_cast(const struct ofgroup *group)
4816 return group ? CONTAINER_OF(group, struct group_dpif, up) : NULL;
4819 static struct ofgroup *
4822 struct group_dpif *group = xzalloc(sizeof *group);
4827 group_dealloc(struct ofgroup *group_)
4829 struct group_dpif *group = group_dpif_cast(group_);
4834 group_construct_stats(struct group_dpif *group)
4835 OVS_REQUIRES(group->stats_mutex)
4837 group->packet_count = 0;
4838 group->byte_count = 0;
4839 if (!group->bucket_stats) {
4840 group->bucket_stats = xcalloc(group->up.n_buckets,
4841 sizeof *group->bucket_stats);
4843 memset(group->bucket_stats, 0, group->up.n_buckets *
4844 sizeof *group->bucket_stats);
4849 group_construct(struct ofgroup *group_)
4851 struct group_dpif *group = group_dpif_cast(group_);
4852 ovs_mutex_init(&group->stats_mutex);
4853 ovs_mutex_lock(&group->stats_mutex);
4854 group_construct_stats(group);
4855 ovs_mutex_unlock(&group->stats_mutex);
4860 group_destruct__(struct group_dpif *group)
4861 OVS_REQUIRES(group->stats_mutex)
4863 free(group->bucket_stats);
4864 group->bucket_stats = NULL;
4868 group_destruct(struct ofgroup *group_)
4870 struct group_dpif *group = group_dpif_cast(group_);
4871 ovs_mutex_lock(&group->stats_mutex);
4872 group_destruct__(group);
4873 ovs_mutex_unlock(&group->stats_mutex);
4874 ovs_mutex_destroy(&group->stats_mutex);
4878 group_modify(struct ofgroup *group_, struct ofgroup *victim_)
4880 struct group_dpif *group = group_dpif_cast(group_);
4881 struct group_dpif *victim = group_dpif_cast(victim_);
4883 ovs_mutex_lock(&group->stats_mutex);
4884 if (victim->up.n_buckets < group->up.n_buckets) {
4885 group_destruct__(group);
4887 group_construct_stats(group);
4888 ovs_mutex_unlock(&group->stats_mutex);
4894 group_get_stats(const struct ofgroup *group_, struct ofputil_group_stats *ogs)
4896 struct group_dpif *group = group_dpif_cast(group_);
4898 /* Start from historical data for 'group' itself that are no longer tracked
4899 * in facets. This counts, for example, facets that have expired. */
4900 ovs_mutex_lock(&group->stats_mutex);
4901 ogs->packet_count = group->packet_count;
4902 ogs->byte_count = group->byte_count;
4903 memcpy(ogs->bucket_stats, group->bucket_stats,
4904 group->up.n_buckets * sizeof *group->bucket_stats);
4905 ovs_mutex_unlock(&group->stats_mutex);
4911 group_dpif_lookup(struct ofproto_dpif *ofproto, uint32_t group_id,
4912 struct group_dpif **group)
4913 OVS_TRY_RDLOCK(true, (*group)->up.rwlock)
4915 struct ofgroup *ofgroup;
4919 found = ofproto_group_lookup(&ofproto->up, group_id, &ofgroup);
4920 *group = found ? group_dpif_cast(ofgroup) : NULL;
4926 group_dpif_release(struct group_dpif *group)
4927 OVS_RELEASES(group->up.rwlock)
4929 ofproto_group_release(&group->up);
4933 group_dpif_get_buckets(const struct group_dpif *group,
4934 const struct list **buckets)
4936 *buckets = &group->up.buckets;
4939 enum ofp11_group_type
4940 group_dpif_get_type(const struct group_dpif *group)
4942 return group->up.type;
4945 /* Sends 'packet' out 'ofport'.
4946 * May modify 'packet'.
4947 * Returns 0 if successful, otherwise a positive errno value. */
4949 ofproto_dpif_send_packet(const struct ofport_dpif *ofport, struct ofpbuf *packet)
4951 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
4954 error = xlate_send_packet(ofport, packet);
4956 ovs_mutex_lock(&ofproto->stats_mutex);
4957 ofproto->stats.tx_packets++;
4958 ofproto->stats.tx_bytes += packet->size;
4959 ovs_mutex_unlock(&ofproto->stats_mutex);
4963 /* Composes an ODP action for a "slow path" action for 'flow' within 'ofproto'.
4964 * The action will state 'slow' as the reason that the action is in the slow
4965 * path. (This is purely informational: it allows a human viewing "ovs-dpctl
4966 * dump-flows" output to see why a flow is in the slow path.)
4968 * The 'stub_size' bytes in 'stub' will be used to store the action.
4969 * 'stub_size' must be large enough for the action.
4971 * The action and its size will be stored in '*actionsp' and '*actions_lenp',
4974 compose_slow_path(const struct ofproto_dpif *ofproto, const struct flow *flow,
4975 enum slow_path_reason slow,
4976 uint64_t *stub, size_t stub_size,
4977 const struct nlattr **actionsp, size_t *actions_lenp)
4979 union user_action_cookie cookie;
4982 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
4983 cookie.slow_path.unused = 0;
4984 cookie.slow_path.reason = slow;
4986 ofpbuf_use_stack(&buf, stub, stub_size);
4987 if (slow & (SLOW_CFM | SLOW_BFD | SLOW_LACP | SLOW_STP)) {
4988 uint32_t pid = dpif_port_get_pid(ofproto->backer->dpif,
4990 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, &buf);
4992 odp_port_t odp_port;
4995 odp_port = ofp_port_to_odp_port(ofproto, flow->in_port.ofp_port);
4996 pid = dpif_port_get_pid(ofproto->backer->dpif, odp_port);
4997 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, &buf);
4999 *actionsp = buf.data;
5000 *actions_lenp = buf.size;
5004 set_frag_handling(struct ofproto *ofproto_,
5005 enum ofp_config_flags frag_handling)
5007 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
5008 if (frag_handling != OFPC_FRAG_REASM) {
5009 ofproto->backer->need_revalidate = REV_RECONFIGURE;
5017 packet_out(struct ofproto *ofproto_, struct ofpbuf *packet,
5018 const struct flow *flow,
5019 const struct ofpact *ofpacts, size_t ofpacts_len)
5021 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
5023 ofproto_dpif_execute_actions(ofproto, flow, NULL, ofpacts,
5024 ofpacts_len, packet);
5031 set_netflow(struct ofproto *ofproto_,
5032 const struct netflow_options *netflow_options)
5034 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
5036 if (netflow_options) {
5037 if (!ofproto->netflow) {
5038 ofproto->netflow = netflow_create();
5039 ofproto->backer->need_revalidate = REV_RECONFIGURE;
5041 return netflow_set_options(ofproto->netflow, netflow_options);
5042 } else if (ofproto->netflow) {
5043 ofproto->backer->need_revalidate = REV_RECONFIGURE;
5044 netflow_destroy(ofproto->netflow);
5045 ofproto->netflow = NULL;
5052 get_netflow_ids(const struct ofproto *ofproto_,
5053 uint8_t *engine_type, uint8_t *engine_id)
5055 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
5057 dpif_get_netflow_ids(ofproto->backer->dpif, engine_type, engine_id);
5061 send_active_timeout(struct ofproto_dpif *ofproto, struct facet *facet)
5063 if (!facet_is_controller_flow(facet) &&
5064 netflow_active_timeout_expired(ofproto->netflow, &facet->nf_flow)) {
5065 struct subfacet *subfacet;
5066 struct ofexpired expired;
5068 LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
5069 if (subfacet->path == SF_FAST_PATH) {
5070 struct dpif_flow_stats stats;
5072 subfacet_install(subfacet, &facet->xout.odp_actions,
5074 subfacet_update_stats(subfacet, &stats);
5078 expired.flow = facet->flow;
5079 expired.packet_count = facet->packet_count;
5080 expired.byte_count = facet->byte_count;
5081 expired.used = facet->used;
5082 netflow_expire(ofproto->netflow, &facet->nf_flow, &expired);
5087 send_netflow_active_timeouts(struct ofproto_dpif *ofproto)
5089 struct cls_cursor cursor;
5090 struct facet *facet;
5092 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
5093 cls_cursor_init(&cursor, &ofproto->facets, NULL);
5094 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
5095 send_active_timeout(ofproto, facet);
5097 ovs_rwlock_unlock(&ofproto->facets.rwlock);
5100 static struct ofproto_dpif *
5101 ofproto_dpif_lookup(const char *name)
5103 struct ofproto_dpif *ofproto;
5105 HMAP_FOR_EACH_WITH_HASH (ofproto, all_ofproto_dpifs_node,
5106 hash_string(name, 0), &all_ofproto_dpifs) {
5107 if (!strcmp(ofproto->up.name, name)) {
5115 ofproto_unixctl_fdb_flush(struct unixctl_conn *conn, int argc,
5116 const char *argv[], void *aux OVS_UNUSED)
5118 struct ofproto_dpif *ofproto;
5121 ofproto = ofproto_dpif_lookup(argv[1]);
5123 unixctl_command_reply_error(conn, "no such bridge");
5126 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
5127 mac_learning_flush(ofproto->ml);
5128 ovs_rwlock_unlock(&ofproto->ml->rwlock);
5130 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5131 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
5132 mac_learning_flush(ofproto->ml);
5133 ovs_rwlock_unlock(&ofproto->ml->rwlock);
5137 unixctl_command_reply(conn, "table successfully flushed");
5140 static struct ofport_dpif *
5141 ofbundle_get_a_port(const struct ofbundle *bundle)
5143 return CONTAINER_OF(list_front(&bundle->ports), struct ofport_dpif,
5148 ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
5149 const char *argv[], void *aux OVS_UNUSED)
5151 struct ds ds = DS_EMPTY_INITIALIZER;
5152 const struct ofproto_dpif *ofproto;
5153 const struct mac_entry *e;
5155 ofproto = ofproto_dpif_lookup(argv[1]);
5157 unixctl_command_reply_error(conn, "no such bridge");
5161 ds_put_cstr(&ds, " port VLAN MAC Age\n");
5162 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
5163 LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
5164 struct ofbundle *bundle = e->port.p;
5165 char name[OFP_MAX_PORT_NAME_LEN];
5167 ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
5169 ds_put_format(&ds, "%5s %4d "ETH_ADDR_FMT" %3d\n",
5170 name, e->vlan, ETH_ADDR_ARGS(e->mac),
5171 mac_entry_age(ofproto->ml, e));
5173 ovs_rwlock_unlock(&ofproto->ml->rwlock);
5174 unixctl_command_reply(conn, ds_cstr(&ds));
5179 struct xlate_out xout;
5180 struct xlate_in xin;
5186 trace_format_rule(struct ds *result, int level, const struct rule_dpif *rule)
5188 struct rule_actions *actions;
5191 ds_put_char_multiple(result, '\t', level);
5193 ds_put_cstr(result, "No match\n");
5197 ovs_mutex_lock(&rule->up.mutex);
5198 cookie = rule->up.flow_cookie;
5199 ovs_mutex_unlock(&rule->up.mutex);
5201 ds_put_format(result, "Rule: table=%"PRIu8" cookie=%#"PRIx64" ",
5202 rule ? rule->up.table_id : 0, ntohll(cookie));
5203 cls_rule_format(&rule->up.cr, result);
5204 ds_put_char(result, '\n');
5206 actions = rule_dpif_get_actions(rule);
5208 ds_put_char_multiple(result, '\t', level);
5209 ds_put_cstr(result, "OpenFlow actions=");
5210 ofpacts_format(actions->ofpacts, actions->ofpacts_len, result);
5211 ds_put_char(result, '\n');
5213 rule_actions_unref(actions);
5217 trace_format_flow(struct ds *result, int level, const char *title,
5218 struct trace_ctx *trace)
5220 ds_put_char_multiple(result, '\t', level);
5221 ds_put_format(result, "%s: ", title);
5222 if (flow_equal(&trace->xin.flow, &trace->flow)) {
5223 ds_put_cstr(result, "unchanged");
5225 flow_format(result, &trace->xin.flow);
5226 trace->flow = trace->xin.flow;
5228 ds_put_char(result, '\n');
5232 trace_format_regs(struct ds *result, int level, const char *title,
5233 struct trace_ctx *trace)
5237 ds_put_char_multiple(result, '\t', level);
5238 ds_put_format(result, "%s:", title);
5239 for (i = 0; i < FLOW_N_REGS; i++) {
5240 ds_put_format(result, " reg%zu=0x%"PRIx32, i, trace->flow.regs[i]);
5242 ds_put_char(result, '\n');
5246 trace_format_odp(struct ds *result, int level, const char *title,
5247 struct trace_ctx *trace)
5249 struct ofpbuf *odp_actions = &trace->xout.odp_actions;
5251 ds_put_char_multiple(result, '\t', level);
5252 ds_put_format(result, "%s: ", title);
5253 format_odp_actions(result, odp_actions->data, odp_actions->size);
5254 ds_put_char(result, '\n');
5258 trace_resubmit(struct xlate_in *xin, struct rule_dpif *rule, int recurse)
5260 struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
5261 struct ds *result = trace->result;
5263 ds_put_char(result, '\n');
5264 trace_format_flow(result, recurse + 1, "Resubmitted flow", trace);
5265 trace_format_regs(result, recurse + 1, "Resubmitted regs", trace);
5266 trace_format_odp(result, recurse + 1, "Resubmitted odp", trace);
5267 trace_format_rule(result, recurse + 1, rule);
5271 trace_report(struct xlate_in *xin, const char *s, int recurse)
5273 struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
5274 struct ds *result = trace->result;
5276 ds_put_char_multiple(result, '\t', recurse);
5277 ds_put_cstr(result, s);
5278 ds_put_char(result, '\n');
5281 /* Parses the 'argc' elements of 'argv', ignoring argv[0]. The following
5282 * forms are supported:
5284 * - [dpname] odp_flow [-generate | packet]
5285 * - bridge br_flow [-generate | packet]
5287 * On success, initializes '*ofprotop' and 'flow' and returns NULL. On failure
5288 * returns a nonnull error message. */
5290 parse_flow_and_packet(int argc, const char *argv[],
5291 struct ofproto_dpif **ofprotop, struct flow *flow,
5292 struct ofpbuf **packetp)
5294 const struct dpif_backer *backer = NULL;
5295 const char *error = NULL;
5296 struct simap port_names = SIMAP_INITIALIZER(&port_names);
5297 struct ofpbuf *packet;
5298 struct ofpbuf odp_key;
5299 struct ofpbuf odp_mask;
5301 ofpbuf_init(&odp_key, 0);
5302 ofpbuf_init(&odp_mask, 0);
5304 /* Handle "-generate" or a hex string as the last argument. */
5305 if (!strcmp(argv[argc - 1], "-generate")) {
5306 packet = ofpbuf_new(0);
5309 error = eth_from_hex(argv[argc - 1], &packet);
5312 } else if (argc == 4) {
5313 /* The 3-argument form must end in "-generate' or a hex string. */
5318 /* odp_flow can have its in_port specified as a name instead of port no.
5319 * We do not yet know whether a given flow is a odp_flow or a br_flow.
5320 * But, to know whether a flow is odp_flow through odp_flow_from_string(),
5321 * we need to create a simap of name to port no. */
5323 const char *dp_type;
5324 if (!strncmp(argv[1], "ovs-", 4)) {
5325 dp_type = argv[1] + 4;
5329 backer = shash_find_data(&all_dpif_backers, dp_type);
5330 } else if (argc == 2) {
5331 struct shash_node *node;
5332 if (shash_count(&all_dpif_backers) == 1) {
5333 node = shash_first(&all_dpif_backers);
5334 backer = node->data;
5337 error = "Syntax error";
5340 if (backer && backer->dpif) {
5341 struct dpif_port dpif_port;
5342 struct dpif_port_dump port_dump;
5343 DPIF_PORT_FOR_EACH (&dpif_port, &port_dump, backer->dpif) {
5344 simap_put(&port_names, dpif_port.name,
5345 odp_to_u32(dpif_port.port_no));
5349 /* Parse the flow and determine whether a datapath or
5350 * bridge is specified. If function odp_flow_key_from_string()
5351 * returns 0, the flow is a odp_flow. If function
5352 * parse_ofp_exact_flow() returns 0, the flow is a br_flow. */
5353 if (!odp_flow_from_string(argv[argc - 1], &port_names,
5354 &odp_key, &odp_mask)) {
5356 error = "Cannot find the datapath";
5360 if (xlate_receive(backer, NULL, odp_key.data, odp_key.size, flow,
5361 NULL, ofprotop, NULL)) {
5362 error = "Invalid datapath flow";
5365 } else if (!parse_ofp_exact_flow(flow, NULL, argv[argc - 1], NULL)) {
5367 error = "Must specify bridge name";
5371 *ofprotop = ofproto_dpif_lookup(argv[1]);
5373 error = "Unknown bridge name";
5377 error = "Bad flow syntax";
5381 /* Generate a packet, if requested. */
5383 if (!packet->size) {
5384 flow_compose(packet, flow);
5386 union flow_in_port in_port = flow->in_port;
5388 /* Use the metadata from the flow and the packet argument
5389 * to reconstruct the flow. */
5390 flow_extract(packet, flow->skb_priority, flow->pkt_mark, NULL,
5399 ofpbuf_delete(packet);
5403 ofpbuf_uninit(&odp_key);
5404 ofpbuf_uninit(&odp_mask);
5405 simap_destroy(&port_names);
5410 ofproto_unixctl_trace(struct unixctl_conn *conn, int argc, const char *argv[],
5411 void *aux OVS_UNUSED)
5413 struct ofproto_dpif *ofproto;
5414 struct ofpbuf *packet;
5418 error = parse_flow_and_packet(argc, argv, &ofproto, &flow, &packet);
5423 ofproto_trace(ofproto, &flow, packet, NULL, 0, &result);
5424 unixctl_command_reply(conn, ds_cstr(&result));
5425 ds_destroy(&result);
5426 ofpbuf_delete(packet);
5428 unixctl_command_reply_error(conn, error);
5433 ofproto_unixctl_trace_actions(struct unixctl_conn *conn, int argc,
5434 const char *argv[], void *aux OVS_UNUSED)
5436 enum ofputil_protocol usable_protocols;
5437 struct ofproto_dpif *ofproto;
5438 bool enforce_consistency;
5439 struct ofpbuf ofpacts;
5440 struct ofpbuf *packet;
5445 /* Three kinds of error return values! */
5452 ofpbuf_init(&ofpacts, 0);
5454 /* Parse actions. */
5455 rw_error = parse_ofpacts(argv[--argc], &ofpacts, &usable_protocols);
5457 unixctl_command_reply_error(conn, rw_error);
5462 /* OpenFlow 1.1 and later suggest that the switch enforces certain forms of
5463 * consistency between the flow and the actions, so enforce these by
5464 * default if the actions can only work in OF1.1 or later. */
5465 enforce_consistency = !(usable_protocols & OFPUTIL_P_OF10_ANY);
5466 if (!strcmp(argv[1], "-consistent")) {
5467 enforce_consistency = true;
5472 error = parse_flow_and_packet(argc, argv, &ofproto, &flow, &packet);
5474 unixctl_command_reply_error(conn, error);
5478 /* Do the same checks as handle_packet_out() in ofproto.c.
5480 * We pass a 'table_id' of 0 to ofproto_check_ofpacts(), which isn't
5481 * strictly correct because these actions aren't in any table, but it's OK
5482 * because it 'table_id' is used only to check goto_table instructions, but
5483 * packet-outs take a list of actions and therefore it can't include
5486 * We skip the "meter" check here because meter is an instruction, not an
5487 * action, and thus cannot appear in ofpacts. */
5488 in_port = ofp_to_u16(flow.in_port.ofp_port);
5489 if (in_port >= ofproto->up.max_ports && in_port < ofp_to_u16(OFPP_MAX)) {
5490 unixctl_command_reply_error(conn, "invalid in_port");
5493 retval = ofpacts_check(ofpacts.data, ofpacts.size, &flow,
5494 enforce_consistency,
5495 u16_to_ofp(ofproto->up.max_ports), 0, 0);
5498 ds_put_format(&result, "Bad actions: %s", ofperr_to_string(retval));
5499 unixctl_command_reply_error(conn, ds_cstr(&result));
5503 ofproto_trace(ofproto, &flow, packet, ofpacts.data, ofpacts.size, &result);
5504 unixctl_command_reply(conn, ds_cstr(&result));
5507 ds_destroy(&result);
5508 ofpbuf_delete(packet);
5509 ofpbuf_uninit(&ofpacts);
5512 /* Implements a "trace" through 'ofproto''s flow table, appending a textual
5513 * description of the results to 'ds'.
5515 * The trace follows a packet with the specified 'flow' through the flow
5516 * table. 'packet' may be nonnull to trace an actual packet, with consequent
5517 * side effects (if it is nonnull then its flow must be 'flow').
5519 * If 'ofpacts' is nonnull then its 'ofpacts_len' bytes specify the actions to
5520 * trace, otherwise the actions are determined by a flow table lookup. */
5522 ofproto_trace(struct ofproto_dpif *ofproto, const struct flow *flow,
5523 const struct ofpbuf *packet,
5524 const struct ofpact ofpacts[], size_t ofpacts_len,
5527 struct rule_dpif *rule;
5528 struct flow_wildcards wc;
5530 ds_put_format(ds, "Bridge: %s\n", ofproto->up.name);
5531 ds_put_cstr(ds, "Flow: ");
5532 flow_format(ds, flow);
5533 ds_put_char(ds, '\n');
5535 flow_wildcards_init_catchall(&wc);
5539 rule_dpif_lookup(ofproto, flow, &wc, &rule);
5541 trace_format_rule(ds, 0, rule);
5542 if (rule == ofproto->miss_rule) {
5543 ds_put_cstr(ds, "\nNo match, flow generates \"packet in\"s.\n");
5544 } else if (rule == ofproto->no_packet_in_rule) {
5545 ds_put_cstr(ds, "\nNo match, packets dropped because "
5546 "OFPPC_NO_PACKET_IN is set on in_port.\n");
5547 } else if (rule == ofproto->drop_frags_rule) {
5548 ds_put_cstr(ds, "\nPackets dropped because they are IP fragments "
5549 "and the fragment handling mode is \"drop\".\n");
5553 if (rule || ofpacts) {
5554 uint64_t odp_actions_stub[1024 / 8];
5555 struct ofpbuf odp_actions;
5556 struct trace_ctx trace;
5560 tcp_flags = packet ? packet_get_tcp_flags(packet, flow) : 0;
5563 ofpbuf_use_stub(&odp_actions,
5564 odp_actions_stub, sizeof odp_actions_stub);
5565 xlate_in_init(&trace.xin, ofproto, flow, rule, tcp_flags, packet);
5567 trace.xin.ofpacts = ofpacts;
5568 trace.xin.ofpacts_len = ofpacts_len;
5570 trace.xin.resubmit_hook = trace_resubmit;
5571 trace.xin.report_hook = trace_report;
5573 xlate_actions(&trace.xin, &trace.xout);
5574 flow_wildcards_or(&trace.xout.wc, &trace.xout.wc, &wc);
5576 ds_put_char(ds, '\n');
5577 trace_format_flow(ds, 0, "Final flow", &trace);
5579 match_init(&match, flow, &trace.xout.wc);
5580 ds_put_cstr(ds, "Relevant fields: ");
5581 match_format(&match, ds, OFP_DEFAULT_PRIORITY);
5582 ds_put_char(ds, '\n');
5584 ds_put_cstr(ds, "Datapath actions: ");
5585 format_odp_actions(ds, trace.xout.odp_actions.data,
5586 trace.xout.odp_actions.size);
5588 if (trace.xout.slow) {
5589 enum slow_path_reason slow;
5591 ds_put_cstr(ds, "\nThis flow is handled by the userspace "
5592 "slow path because it:");
5594 slow = trace.xout.slow;
5596 enum slow_path_reason bit = rightmost_1bit(slow);
5598 ds_put_format(ds, "\n\t- %s.",
5599 slow_path_reason_to_explanation(bit));
5605 xlate_out_uninit(&trace.xout);
5608 rule_dpif_unref(rule);
5611 /* Runs a self-check of flow translations in 'ofproto'. Appends a message to
5612 * 'reply' describing the results. */
5614 ofproto_dpif_self_check__(struct ofproto_dpif *ofproto, struct ds *reply)
5616 struct cls_cursor cursor;
5617 struct facet *facet;
5621 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
5622 cls_cursor_init(&cursor, &ofproto->facets, NULL);
5623 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
5624 if (!facet_check_consistency(facet)) {
5628 ovs_rwlock_unlock(&ofproto->facets.rwlock);
5630 ofproto->backer->need_revalidate = REV_INCONSISTENCY;
5634 ds_put_format(reply, "%s: self-check failed (%d errors)\n",
5635 ofproto->up.name, errors);
5637 ds_put_format(reply, "%s: self-check passed\n", ofproto->up.name);
5642 ofproto_dpif_self_check(struct unixctl_conn *conn,
5643 int argc, const char *argv[], void *aux OVS_UNUSED)
5645 struct ds reply = DS_EMPTY_INITIALIZER;
5646 struct ofproto_dpif *ofproto;
5649 ofproto = ofproto_dpif_lookup(argv[1]);
5651 unixctl_command_reply_error(conn, "Unknown ofproto (use "
5652 "ofproto/list for help)");
5655 ofproto_dpif_self_check__(ofproto, &reply);
5657 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5658 ofproto_dpif_self_check__(ofproto, &reply);
5662 unixctl_command_reply(conn, ds_cstr(&reply));
5666 /* Store the current ofprotos in 'ofproto_shash'. Returns a sorted list
5667 * of the 'ofproto_shash' nodes. It is the responsibility of the caller
5668 * to destroy 'ofproto_shash' and free the returned value. */
5669 static const struct shash_node **
5670 get_ofprotos(struct shash *ofproto_shash)
5672 const struct ofproto_dpif *ofproto;
5674 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5675 char *name = xasprintf("%s@%s", ofproto->up.type, ofproto->up.name);
5676 shash_add_nocopy(ofproto_shash, name, ofproto);
5679 return shash_sort(ofproto_shash);
5683 ofproto_unixctl_dpif_dump_dps(struct unixctl_conn *conn, int argc OVS_UNUSED,
5684 const char *argv[] OVS_UNUSED,
5685 void *aux OVS_UNUSED)
5687 struct ds ds = DS_EMPTY_INITIALIZER;
5688 struct shash ofproto_shash;
5689 const struct shash_node **sorted_ofprotos;
5692 shash_init(&ofproto_shash);
5693 sorted_ofprotos = get_ofprotos(&ofproto_shash);
5694 for (i = 0; i < shash_count(&ofproto_shash); i++) {
5695 const struct shash_node *node = sorted_ofprotos[i];
5696 ds_put_format(&ds, "%s\n", node->name);
5699 shash_destroy(&ofproto_shash);
5700 free(sorted_ofprotos);
5702 unixctl_command_reply(conn, ds_cstr(&ds));
5707 dpif_show_backer(const struct dpif_backer *backer, struct ds *ds)
5709 const struct shash_node **ofprotos;
5710 struct ofproto_dpif *ofproto;
5711 struct shash ofproto_shash;
5712 uint64_t n_hit, n_missed;
5715 n_hit = n_missed = 0;
5716 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5717 if (ofproto->backer == backer) {
5718 n_missed += ofproto->n_missed;
5719 n_hit += ofproto->n_hit;
5723 ds_put_format(ds, "%s: hit:%"PRIu64" missed:%"PRIu64"\n",
5724 dpif_name(backer->dpif), n_hit, n_missed);
5725 ds_put_format(ds, "\tflows: cur: %zu, avg: %u, max: %u,"
5726 " life span: %lldms\n", hmap_count(&backer->subfacets),
5727 backer->avg_n_subfacet, backer->max_n_subfacet,
5728 backer->avg_subfacet_life);
5730 shash_init(&ofproto_shash);
5731 ofprotos = get_ofprotos(&ofproto_shash);
5732 for (i = 0; i < shash_count(&ofproto_shash); i++) {
5733 struct ofproto_dpif *ofproto = ofprotos[i]->data;
5734 const struct shash_node **ports;
5737 if (ofproto->backer != backer) {
5741 ds_put_format(ds, "\t%s: hit:%"PRIu64" missed:%"PRIu64"\n",
5742 ofproto->up.name, ofproto->n_hit, ofproto->n_missed);
5744 ports = shash_sort(&ofproto->up.port_by_name);
5745 for (j = 0; j < shash_count(&ofproto->up.port_by_name); j++) {
5746 const struct shash_node *node = ports[j];
5747 struct ofport *ofport = node->data;
5749 odp_port_t odp_port;
5751 ds_put_format(ds, "\t\t%s %u/", netdev_get_name(ofport->netdev),
5754 odp_port = ofp_port_to_odp_port(ofproto, ofport->ofp_port);
5755 if (odp_port != ODPP_NONE) {
5756 ds_put_format(ds, "%"PRIu32":", odp_port);
5758 ds_put_cstr(ds, "none:");
5761 ds_put_format(ds, " (%s", netdev_get_type(ofport->netdev));
5764 if (!netdev_get_config(ofport->netdev, &config)) {
5765 const struct smap_node **nodes;
5768 nodes = smap_sort(&config);
5769 for (i = 0; i < smap_count(&config); i++) {
5770 const struct smap_node *node = nodes[i];
5771 ds_put_format(ds, "%c %s=%s", i ? ',' : ':',
5772 node->key, node->value);
5776 smap_destroy(&config);
5778 ds_put_char(ds, ')');
5779 ds_put_char(ds, '\n');
5783 shash_destroy(&ofproto_shash);
5788 ofproto_unixctl_dpif_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
5789 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
5791 struct ds ds = DS_EMPTY_INITIALIZER;
5792 const struct shash_node **backers;
5795 backers = shash_sort(&all_dpif_backers);
5796 for (i = 0; i < shash_count(&all_dpif_backers); i++) {
5797 dpif_show_backer(backers[i]->data, &ds);
5801 unixctl_command_reply(conn, ds_cstr(&ds));
5805 /* Dump the megaflow (facet) cache. This is useful to check the
5806 * correctness of flow wildcarding, since the same mechanism is used for
5807 * both xlate caching and kernel wildcarding.
5809 * It's important to note that in the output the flow description uses
5810 * OpenFlow (OFP) ports, but the actions use datapath (ODP) ports.
5812 * This command is only needed for advanced debugging, so it's not
5813 * documented in the man page. */
5815 ofproto_unixctl_dpif_dump_megaflows(struct unixctl_conn *conn,
5816 int argc OVS_UNUSED, const char *argv[],
5817 void *aux OVS_UNUSED)
5819 struct ds ds = DS_EMPTY_INITIALIZER;
5820 const struct ofproto_dpif *ofproto;
5821 long long int now = time_msec();
5822 struct cls_cursor cursor;
5823 struct facet *facet;
5825 ofproto = ofproto_dpif_lookup(argv[1]);
5827 unixctl_command_reply_error(conn, "no such bridge");
5831 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
5832 cls_cursor_init(&cursor, &ofproto->facets, NULL);
5833 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
5834 cls_rule_format(&facet->cr, &ds);
5835 ds_put_cstr(&ds, ", ");
5836 ds_put_format(&ds, "n_subfacets:%zu, ", list_size(&facet->subfacets));
5837 ds_put_format(&ds, "used:%.3fs, ", (now - facet->used) / 1000.0);
5838 ds_put_cstr(&ds, "Datapath actions: ");
5839 if (facet->xout.slow) {
5840 uint64_t slow_path_stub[128 / 8];
5841 const struct nlattr *actions;
5844 compose_slow_path(ofproto, &facet->flow, facet->xout.slow,
5845 slow_path_stub, sizeof slow_path_stub,
5846 &actions, &actions_len);
5847 format_odp_actions(&ds, actions, actions_len);
5849 format_odp_actions(&ds, facet->xout.odp_actions.data,
5850 facet->xout.odp_actions.size);
5852 ds_put_cstr(&ds, "\n");
5854 ovs_rwlock_unlock(&ofproto->facets.rwlock);
5856 ds_chomp(&ds, '\n');
5857 unixctl_command_reply(conn, ds_cstr(&ds));
5861 /* Disable using the megaflows.
5863 * This command is only needed for advanced debugging, so it's not
5864 * documented in the man page. */
5866 ofproto_unixctl_dpif_disable_megaflows(struct unixctl_conn *conn,
5867 int argc OVS_UNUSED,
5868 const char *argv[] OVS_UNUSED,
5869 void *aux OVS_UNUSED)
5871 struct ofproto_dpif *ofproto;
5873 enable_megaflows = false;
5875 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5876 flush(&ofproto->up);
5879 unixctl_command_reply(conn, "megaflows disabled");
5882 /* Re-enable using megaflows.
5884 * This command is only needed for advanced debugging, so it's not
5885 * documented in the man page. */
5887 ofproto_unixctl_dpif_enable_megaflows(struct unixctl_conn *conn,
5888 int argc OVS_UNUSED,
5889 const char *argv[] OVS_UNUSED,
5890 void *aux OVS_UNUSED)
5892 struct ofproto_dpif *ofproto;
5894 enable_megaflows = true;
5896 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5897 flush(&ofproto->up);
5900 unixctl_command_reply(conn, "megaflows enabled");
5904 ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn,
5905 int argc OVS_UNUSED, const char *argv[],
5906 void *aux OVS_UNUSED)
5908 struct ds ds = DS_EMPTY_INITIALIZER;
5909 const struct ofproto_dpif *ofproto;
5910 struct subfacet *subfacet;
5912 ofproto = ofproto_dpif_lookup(argv[1]);
5914 unixctl_command_reply_error(conn, "no such bridge");
5918 update_stats(ofproto->backer);
5920 HMAP_FOR_EACH (subfacet, hmap_node, &ofproto->backer->subfacets) {
5921 struct facet *facet = subfacet->facet;
5922 struct odputil_keybuf maskbuf;
5925 if (facet->ofproto != ofproto) {
5929 ofpbuf_use_stack(&mask, &maskbuf, sizeof maskbuf);
5930 if (enable_megaflows) {
5931 odp_flow_key_from_mask(&mask, &facet->xout.wc.masks,
5932 &facet->flow, UINT32_MAX);
5935 odp_flow_format(subfacet->key, subfacet->key_len,
5936 mask.data, mask.size, NULL, &ds, false);
5938 ds_put_format(&ds, ", packets:%"PRIu64", bytes:%"PRIu64", used:",
5939 subfacet->dp_packet_count, subfacet->dp_byte_count);
5940 if (subfacet->used) {
5941 ds_put_format(&ds, "%.3fs",
5942 (time_msec() - subfacet->used) / 1000.0);
5944 ds_put_format(&ds, "never");
5946 if (subfacet->facet->tcp_flags) {
5947 ds_put_cstr(&ds, ", flags:");
5948 packet_format_tcp_flags(&ds, subfacet->facet->tcp_flags);
5951 ds_put_cstr(&ds, ", actions:");
5952 if (facet->xout.slow) {
5953 uint64_t slow_path_stub[128 / 8];
5954 const struct nlattr *actions;
5957 compose_slow_path(ofproto, &facet->flow, facet->xout.slow,
5958 slow_path_stub, sizeof slow_path_stub,
5959 &actions, &actions_len);
5960 format_odp_actions(&ds, actions, actions_len);
5962 format_odp_actions(&ds, facet->xout.odp_actions.data,
5963 facet->xout.odp_actions.size);
5965 ds_put_char(&ds, '\n');
5968 unixctl_command_reply(conn, ds_cstr(&ds));
5973 ofproto_unixctl_dpif_del_flows(struct unixctl_conn *conn,
5974 int argc OVS_UNUSED, const char *argv[],
5975 void *aux OVS_UNUSED)
5977 struct ds ds = DS_EMPTY_INITIALIZER;
5978 struct ofproto_dpif *ofproto;
5980 ofproto = ofproto_dpif_lookup(argv[1]);
5982 unixctl_command_reply_error(conn, "no such bridge");
5986 flush(&ofproto->up);
5988 unixctl_command_reply(conn, ds_cstr(&ds));
5993 ofproto_dpif_unixctl_init(void)
5995 static bool registered;
6001 unixctl_command_register(
6003 "{[dp_name] odp_flow | bridge br_flow} [-generate|packet]",
6004 1, 3, ofproto_unixctl_trace, NULL);
6005 unixctl_command_register(
6006 "ofproto/trace-packet-out",
6007 "[-consistent] {[dp_name] odp_flow | bridge br_flow} [-generate|packet] actions",
6008 2, 6, ofproto_unixctl_trace_actions, NULL);
6009 unixctl_command_register("fdb/flush", "[bridge]", 0, 1,
6010 ofproto_unixctl_fdb_flush, NULL);
6011 unixctl_command_register("fdb/show", "bridge", 1, 1,
6012 ofproto_unixctl_fdb_show, NULL);
6013 unixctl_command_register("ofproto/self-check", "[bridge]", 0, 1,
6014 ofproto_dpif_self_check, NULL);
6015 unixctl_command_register("dpif/dump-dps", "", 0, 0,
6016 ofproto_unixctl_dpif_dump_dps, NULL);
6017 unixctl_command_register("dpif/show", "", 0, 0, ofproto_unixctl_dpif_show,
6019 unixctl_command_register("dpif/dump-flows", "bridge", 1, 1,
6020 ofproto_unixctl_dpif_dump_flows, NULL);
6021 unixctl_command_register("dpif/del-flows", "bridge", 1, 1,
6022 ofproto_unixctl_dpif_del_flows, NULL);
6023 unixctl_command_register("dpif/dump-megaflows", "bridge", 1, 1,
6024 ofproto_unixctl_dpif_dump_megaflows, NULL);
6025 unixctl_command_register("dpif/disable-megaflows", "", 0, 0,
6026 ofproto_unixctl_dpif_disable_megaflows, NULL);
6027 unixctl_command_register("dpif/enable-megaflows", "", 0, 0,
6028 ofproto_unixctl_dpif_enable_megaflows, NULL);
6031 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
6033 * This is deprecated. It is only for compatibility with broken device drivers
6034 * in old versions of Linux that do not properly support VLANs when VLAN
6035 * devices are not used. When broken device drivers are no longer in
6036 * widespread use, we will delete these interfaces. */
6039 set_realdev(struct ofport *ofport_, ofp_port_t realdev_ofp_port, int vid)
6041 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto);
6042 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
6044 if (realdev_ofp_port == ofport->realdev_ofp_port
6045 && vid == ofport->vlandev_vid) {
6049 ofproto->backer->need_revalidate = REV_RECONFIGURE;
6051 if (ofport->realdev_ofp_port) {
6054 if (realdev_ofp_port && ofport->bundle) {
6055 /* vlandevs are enslaved to their realdevs, so they are not allowed to
6056 * themselves be part of a bundle. */
6057 bundle_set(ofport->up.ofproto, ofport->bundle, NULL);
6060 ofport->realdev_ofp_port = realdev_ofp_port;
6061 ofport->vlandev_vid = vid;
6063 if (realdev_ofp_port) {
6064 vsp_add(ofport, realdev_ofp_port, vid);
6071 hash_realdev_vid(ofp_port_t realdev_ofp_port, int vid)
6073 return hash_2words(ofp_to_u16(realdev_ofp_port), vid);
6077 ofproto_has_vlan_splinters(const struct ofproto_dpif *ofproto)
6078 OVS_EXCLUDED(ofproto->vsp_mutex)
6082 ovs_mutex_lock(&ofproto->vsp_mutex);
6083 ret = !hmap_is_empty(&ofproto->realdev_vid_map);
6084 ovs_mutex_unlock(&ofproto->vsp_mutex);
6089 vsp_realdev_to_vlandev__(const struct ofproto_dpif *ofproto,
6090 ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
6091 OVS_REQUIRES(ofproto->vsp_mutex)
6093 if (!hmap_is_empty(&ofproto->realdev_vid_map)) {
6094 int vid = vlan_tci_to_vid(vlan_tci);
6095 const struct vlan_splinter *vsp;
6097 HMAP_FOR_EACH_WITH_HASH (vsp, realdev_vid_node,
6098 hash_realdev_vid(realdev_ofp_port, vid),
6099 &ofproto->realdev_vid_map) {
6100 if (vsp->realdev_ofp_port == realdev_ofp_port
6101 && vsp->vid == vid) {
6102 return vsp->vlandev_ofp_port;
6106 return realdev_ofp_port;
6109 /* Returns the OFP port number of the Linux VLAN device that corresponds to
6110 * 'vlan_tci' on the network device with port number 'realdev_ofp_port' in
6111 * 'struct ofport_dpif'. For example, given 'realdev_ofp_port' of eth0 and
6112 * 'vlan_tci' 9, it would return the port number of eth0.9.
6114 * Unless VLAN splinters are enabled for port 'realdev_ofp_port', this
6115 * function just returns its 'realdev_ofp_port' argument. */
6117 vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto,
6118 ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
6119 OVS_EXCLUDED(ofproto->vsp_mutex)
6123 ovs_mutex_lock(&ofproto->vsp_mutex);
6124 ret = vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, vlan_tci);
6125 ovs_mutex_unlock(&ofproto->vsp_mutex);
6129 static struct vlan_splinter *
6130 vlandev_find(const struct ofproto_dpif *ofproto, ofp_port_t vlandev_ofp_port)
6132 struct vlan_splinter *vsp;
6134 HMAP_FOR_EACH_WITH_HASH (vsp, vlandev_node,
6135 hash_ofp_port(vlandev_ofp_port),
6136 &ofproto->vlandev_map) {
6137 if (vsp->vlandev_ofp_port == vlandev_ofp_port) {
6145 /* Returns the OpenFlow port number of the "real" device underlying the Linux
6146 * VLAN device with OpenFlow port number 'vlandev_ofp_port' and stores the
6147 * VLAN VID of the Linux VLAN device in '*vid'. For example, given
6148 * 'vlandev_ofp_port' of eth0.9, it would return the OpenFlow port number of
6149 * eth0 and store 9 in '*vid'.
6151 * Returns 0 and does not modify '*vid' if 'vlandev_ofp_port' is not a Linux
6152 * VLAN device. Unless VLAN splinters are enabled, this is what this function
6155 vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto,
6156 ofp_port_t vlandev_ofp_port, int *vid)
6157 OVS_REQUIRES(ofproto->vsp_mutex)
6159 if (!hmap_is_empty(&ofproto->vlandev_map)) {
6160 const struct vlan_splinter *vsp;
6162 vsp = vlandev_find(ofproto, vlandev_ofp_port);
6167 return vsp->realdev_ofp_port;
6173 /* Given 'flow', a flow representing a packet received on 'ofproto', checks
6174 * whether 'flow->in_port' represents a Linux VLAN device. If so, changes
6175 * 'flow->in_port' to the "real" device backing the VLAN device, sets
6176 * 'flow->vlan_tci' to the VLAN VID, and returns true. Otherwise (which is
6177 * always the case unless VLAN splinters are enabled), returns false without
6178 * making any changes. */
6180 vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow)
6181 OVS_EXCLUDED(ofproto->vsp_mutex)
6186 ovs_mutex_lock(&ofproto->vsp_mutex);
6187 realdev = vsp_vlandev_to_realdev(ofproto, flow->in_port.ofp_port, &vid);
6188 ovs_mutex_unlock(&ofproto->vsp_mutex);
6193 /* Cause the flow to be processed as if it came in on the real device with
6194 * the VLAN device's VLAN ID. */
6195 flow->in_port.ofp_port = realdev;
6196 flow->vlan_tci = htons((vid & VLAN_VID_MASK) | VLAN_CFI);
6201 vsp_remove(struct ofport_dpif *port)
6203 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
6204 struct vlan_splinter *vsp;
6206 ovs_mutex_lock(&ofproto->vsp_mutex);
6207 vsp = vlandev_find(ofproto, port->up.ofp_port);
6209 hmap_remove(&ofproto->vlandev_map, &vsp->vlandev_node);
6210 hmap_remove(&ofproto->realdev_vid_map, &vsp->realdev_vid_node);
6213 port->realdev_ofp_port = 0;
6215 VLOG_ERR("missing vlan device record");
6217 ovs_mutex_unlock(&ofproto->vsp_mutex);
6221 vsp_add(struct ofport_dpif *port, ofp_port_t realdev_ofp_port, int vid)
6223 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
6225 ovs_mutex_lock(&ofproto->vsp_mutex);
6226 if (!vsp_vlandev_to_realdev(ofproto, port->up.ofp_port, NULL)
6227 && (vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, htons(vid))
6228 == realdev_ofp_port)) {
6229 struct vlan_splinter *vsp;
6231 vsp = xmalloc(sizeof *vsp);
6232 vsp->realdev_ofp_port = realdev_ofp_port;
6233 vsp->vlandev_ofp_port = port->up.ofp_port;
6236 port->realdev_ofp_port = realdev_ofp_port;
6238 hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node,
6239 hash_ofp_port(port->up.ofp_port));
6240 hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node,
6241 hash_realdev_vid(realdev_ofp_port, vid));
6243 VLOG_ERR("duplicate vlan device record");
6245 ovs_mutex_unlock(&ofproto->vsp_mutex);
6249 ofp_port_to_odp_port(const struct ofproto_dpif *ofproto, ofp_port_t ofp_port)
6251 const struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port);
6252 return ofport ? ofport->odp_port : ODPP_NONE;
6255 struct ofport_dpif *
6256 odp_port_to_ofport(const struct dpif_backer *backer, odp_port_t odp_port)
6258 struct ofport_dpif *port;
6260 ovs_rwlock_rdlock(&backer->odp_to_ofport_lock);
6261 HMAP_FOR_EACH_IN_BUCKET (port, odp_port_node, hash_odp_port(odp_port),
6262 &backer->odp_to_ofport_map) {
6263 if (port->odp_port == odp_port) {
6264 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
6269 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
6274 odp_port_to_ofp_port(const struct ofproto_dpif *ofproto, odp_port_t odp_port)
6276 struct ofport_dpif *port;
6278 port = odp_port_to_ofport(ofproto->backer, odp_port);
6279 if (port && &ofproto->up == port->up.ofproto) {
6280 return port->up.ofp_port;
6286 const struct ofproto_class ofproto_dpif_class = {
6321 port_is_lacp_current,
6322 NULL, /* rule_choose_table */
6331 rule_modify_actions,
6345 get_stp_port_status,
6352 is_mirror_output_bundle,
6353 forward_bpdu_changed,
6354 set_mac_table_config,
6356 NULL, /* meter_get_features */
6357 NULL, /* meter_set */
6358 NULL, /* meter_get */
6359 NULL, /* meter_del */
6360 group_alloc, /* group_alloc */
6361 group_construct, /* group_construct */
6362 group_destruct, /* group_destruct */
6363 group_dealloc, /* group_dealloc */
6364 group_modify, /* group_modify */
6365 group_get_stats, /* group_get_stats */