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 *);
114 struct hmap_node hmap_node; /* In struct ofproto's "bundles" hmap. */
115 struct ofproto_dpif *ofproto; /* Owning ofproto. */
116 void *aux; /* Key supplied by ofproto's client. */
117 char *name; /* Identifier for log messages. */
120 struct list ports; /* Contains "struct ofport"s. */
121 enum port_vlan_mode vlan_mode; /* VLAN mode */
122 int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */
123 unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1.
124 * NULL if all VLANs are trunked. */
125 struct lacp *lacp; /* LACP if LACP is enabled, otherwise NULL. */
126 struct bond *bond; /* Nonnull iff more than one port. */
127 bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */
130 bool floodable; /* True if no port has OFPUTIL_PC_NO_FLOOD set. */
133 static void bundle_remove(struct ofport *);
134 static void bundle_update(struct ofbundle *);
135 static void bundle_destroy(struct ofbundle *);
136 static void bundle_del_port(struct ofport_dpif *);
137 static void bundle_run(struct ofbundle *);
138 static void bundle_wait(struct ofbundle *);
140 static void stp_run(struct ofproto_dpif *ofproto);
141 static void stp_wait(struct ofproto_dpif *ofproto);
142 static int set_stp_port(struct ofport *,
143 const struct ofproto_port_stp_settings *);
145 static void compose_slow_path(const struct ofproto_dpif *, const struct flow *,
146 enum slow_path_reason,
147 uint64_t *stub, size_t stub_size,
148 const struct nlattr **actionsp,
149 size_t *actions_lenp);
151 /* A subfacet (see "struct subfacet" below) has three possible installation
154 * - SF_NOT_INSTALLED: Not installed in the datapath. This will only be the
155 * case just after the subfacet is created, just before the subfacet is
156 * destroyed, or if the datapath returns an error when we try to install a
159 * - SF_FAST_PATH: The subfacet's actions are installed in the datapath.
161 * - SF_SLOW_PATH: An action that sends every packet for the subfacet through
162 * ofproto_dpif is installed in the datapath.
165 SF_NOT_INSTALLED, /* No datapath flow for this subfacet. */
166 SF_FAST_PATH, /* Full actions are installed. */
167 SF_SLOW_PATH, /* Send-to-userspace action is installed. */
170 /* A dpif flow and actions associated with a facet.
172 * See also the large comment on struct facet. */
175 struct hmap_node hmap_node; /* In struct ofproto_dpif 'subfacets' list. */
176 struct list list_node; /* In struct facet's 'facets' list. */
177 struct facet *facet; /* Owning facet. */
178 struct dpif_backer *backer; /* Owning backer. */
183 long long int used; /* Time last used; time created if not used. */
184 long long int created; /* Time created. */
186 uint64_t dp_packet_count; /* Last known packet count in the datapath. */
187 uint64_t dp_byte_count; /* Last known byte count in the datapath. */
189 enum subfacet_path path; /* Installed in datapath? */
192 #define SUBFACET_DESTROY_MAX_BATCH 50
194 static struct subfacet *subfacet_create(struct facet *, struct flow_miss *);
195 static struct subfacet *subfacet_find(struct dpif_backer *,
196 const struct nlattr *key, size_t key_len,
198 static void subfacet_destroy(struct subfacet *);
199 static void subfacet_destroy__(struct subfacet *);
200 static void subfacet_destroy_batch(struct dpif_backer *,
201 struct subfacet **, int n);
202 static void subfacet_reset_dp_stats(struct subfacet *,
203 struct dpif_flow_stats *);
204 static void subfacet_update_stats(struct subfacet *,
205 const struct dpif_flow_stats *);
206 static int subfacet_install(struct subfacet *,
207 const struct ofpbuf *odp_actions,
208 struct dpif_flow_stats *);
209 static void subfacet_uninstall(struct subfacet *);
211 /* A unique, non-overlapping instantiation of an OpenFlow flow.
213 * A facet associates a "struct flow", which represents the Open vSwitch
214 * userspace idea of an exact-match flow, with one or more subfacets.
215 * While the facet is created based on an exact-match flow, it is stored
216 * within the ofproto based on the wildcards that could be expressed
217 * based on the flow table and other configuration. (See the 'wc'
218 * description in "struct xlate_out" for more details.)
220 * Each subfacet tracks the datapath's idea of the flow equivalent to
221 * the facet. When the kernel module (or other dpif implementation) and
222 * Open vSwitch userspace agree on the definition of a flow key, there
223 * is exactly one subfacet per facet. If the dpif implementation
224 * supports more-specific flow matching than userspace, however, a facet
225 * can have more than one subfacet. Examples include the dpif
226 * implementation not supporting the same wildcards as userspace or some
227 * distinction in flow that userspace simply doesn't understand.
229 * Flow expiration works in terms of subfacets, so a facet must have at
230 * least one subfacet or it will never expire, leaking memory. */
233 struct ofproto_dpif *ofproto;
236 struct list subfacets;
237 long long int used; /* Time last used; time created if not used. */
240 struct flow flow; /* Flow of the creating subfacet. */
241 struct cls_rule cr; /* In 'ofproto_dpif's facets classifier. */
245 * - Do include packets and bytes sent "by hand", e.g. with
248 * - Do include packets and bytes that were obtained from the datapath
249 * when a subfacet's statistics were reset (e.g. dpif_flow_put() with
250 * DPIF_FP_ZERO_STATS).
252 * - Do not include packets or bytes that can be obtained from the
253 * datapath for any existing subfacet.
255 uint64_t packet_count; /* Number of packets received. */
256 uint64_t byte_count; /* Number of bytes received. */
258 /* Resubmit statistics. */
259 uint64_t prev_packet_count; /* Number of packets from last stats push. */
260 uint64_t prev_byte_count; /* Number of bytes from last stats push. */
261 long long int prev_used; /* Used time from last stats push. */
264 uint64_t accounted_bytes; /* Bytes processed by facet_account(). */
265 struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */
266 uint16_t tcp_flags; /* TCP flags seen for this 'rule'. */
268 struct xlate_out xout;
270 /* Storage for a single subfacet, to reduce malloc() time and space
271 * overhead. (A facet always has at least one subfacet and in the common
272 * case has exactly one subfacet. However, 'one_subfacet' may not
273 * always be valid, since it could have been removed after newer
274 * subfacets were pushed onto the 'subfacets' list.) */
275 struct subfacet one_subfacet;
277 long long int learn_rl; /* Rate limiter for facet_learn(). */
280 static struct facet *facet_create(const struct flow_miss *);
281 static void facet_remove(struct facet *);
282 static void facet_free(struct facet *);
284 static struct facet *facet_find(struct ofproto_dpif *, const struct flow *);
285 static struct facet *facet_lookup_valid(struct ofproto_dpif *,
286 const struct flow *);
287 static bool facet_revalidate(struct facet *);
288 static bool facet_check_consistency(struct facet *);
290 static void facet_flush_stats(struct facet *);
292 static void facet_reset_counters(struct facet *);
293 static void flow_push_stats(struct ofproto_dpif *, struct flow *,
294 struct dpif_flow_stats *, bool may_learn);
295 static void facet_push_stats(struct facet *, bool may_learn);
296 static void facet_learn(struct facet *);
297 static void facet_account(struct facet *);
298 static void push_all_stats(void);
300 static bool facet_is_controller_flow(struct facet *);
303 struct hmap_node odp_port_node; /* In dpif_backer's "odp_to_ofport_map". */
307 struct ofbundle *bundle; /* Bundle that contains this port, if any. */
308 struct list bundle_node; /* In struct ofbundle's "ports" list. */
309 struct cfm *cfm; /* Connectivity Fault Management, if any. */
310 struct bfd *bfd; /* BFD, if any. */
311 bool may_enable; /* May be enabled in bonds. */
312 bool is_tunnel; /* This port is a tunnel. */
313 long long int carrier_seq; /* Carrier status changes. */
314 struct ofport_dpif *peer; /* Peer if patch port. */
317 struct stp_port *stp_port; /* Spanning Tree Protocol, if any. */
318 enum stp_state stp_state; /* Always STP_DISABLED if STP not in use. */
319 long long int stp_state_entered;
321 /* Queue to DSCP mapping. */
322 struct ofproto_port_queue *qdscp;
325 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
327 * This is deprecated. It is only for compatibility with broken device
328 * drivers in old versions of Linux that do not properly support VLANs when
329 * VLAN devices are not used. When broken device drivers are no longer in
330 * widespread use, we will delete these interfaces. */
331 ofp_port_t realdev_ofp_port;
335 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
337 * This is deprecated. It is only for compatibility with broken device drivers
338 * in old versions of Linux that do not properly support VLANs when VLAN
339 * devices are not used. When broken device drivers are no longer in
340 * widespread use, we will delete these interfaces. */
341 struct vlan_splinter {
342 struct hmap_node realdev_vid_node;
343 struct hmap_node vlandev_node;
344 ofp_port_t realdev_ofp_port;
345 ofp_port_t vlandev_ofp_port;
349 static void vsp_remove(struct ofport_dpif *);
350 static void vsp_add(struct ofport_dpif *, ofp_port_t realdev_ofp_port, int vid);
352 static odp_port_t ofp_port_to_odp_port(const struct ofproto_dpif *,
355 static ofp_port_t odp_port_to_ofp_port(const struct ofproto_dpif *,
358 static struct ofport_dpif *
359 ofport_dpif_cast(const struct ofport *ofport)
361 return ofport ? CONTAINER_OF(ofport, struct ofport_dpif, up) : NULL;
364 static void port_run(struct ofport_dpif *);
365 static int set_bfd(struct ofport *, const struct smap *);
366 static int set_cfm(struct ofport *, const struct cfm_settings *);
367 static void ofport_update_peer(struct ofport_dpif *);
368 static void run_fast_rl(void);
369 static int run_fast(struct ofproto *);
371 struct dpif_completion {
372 struct list list_node;
373 struct ofoperation *op;
376 /* Reasons that we might need to revalidate every facet, and corresponding
379 * A value of 0 means that there is no need to revalidate.
381 * It would be nice to have some cleaner way to integrate with coverage
382 * counters, but with only a few reasons I guess this is good enough for
384 enum revalidate_reason {
385 REV_RECONFIGURE = 1, /* Switch configuration changed. */
386 REV_STP, /* Spanning tree protocol port status change. */
387 REV_BOND, /* Bonding changed. */
388 REV_PORT_TOGGLED, /* Port enabled or disabled by CFM, LACP, ...*/
389 REV_FLOW_TABLE, /* Flow table changed. */
390 REV_MAC_LEARNING, /* Mac learning changed. */
391 REV_INCONSISTENCY /* Facet self-check failed. */
393 COVERAGE_DEFINE(rev_reconfigure);
394 COVERAGE_DEFINE(rev_stp);
395 COVERAGE_DEFINE(rev_bond);
396 COVERAGE_DEFINE(rev_port_toggled);
397 COVERAGE_DEFINE(rev_flow_table);
398 COVERAGE_DEFINE(rev_mac_learning);
399 COVERAGE_DEFINE(rev_inconsistency);
401 struct avg_subfacet_rates {
402 double add_rate; /* Moving average of new flows created per minute. */
403 double del_rate; /* Moving average of flows deleted per minute. */
406 /* All datapaths of a given type share a single dpif backer instance. */
412 struct timer next_expiration;
414 struct ovs_rwlock odp_to_ofport_lock;
415 struct hmap odp_to_ofport_map OVS_GUARDED; /* ODP port to ofport map. */
417 struct simap tnl_backers; /* Set of dpif ports backing tunnels. */
419 /* Facet revalidation flags applying to facets which use this backer. */
420 enum revalidate_reason need_revalidate; /* Revalidate every facet. */
422 struct hmap drop_keys; /* Set of dropped odp keys. */
423 bool recv_set_enable; /* Enables or disables receiving packets. */
425 struct hmap subfacets;
426 struct governor *governor;
428 /* Subfacet statistics.
430 * These keep track of the total number of subfacets added and deleted and
431 * flow life span. They are useful for computing the flow rates stats
432 * exposed via "ovs-appctl dpif/show". The goal is to learn about
433 * traffic patterns in ways that we can use later to improve Open vSwitch
434 * performance in new situations. */
435 long long int created; /* Time when it is created. */
436 unsigned max_n_subfacet; /* Maximum number of flows */
437 unsigned avg_n_subfacet; /* Average number of flows. */
438 long long int avg_subfacet_life; /* Average life span of subfacets. */
440 /* Number of upcall handling threads. */
441 unsigned int n_handler_threads;
444 /* All existing ofproto_backer instances, indexed by ofproto->up.type. */
445 static struct shash all_dpif_backers = SHASH_INITIALIZER(&all_dpif_backers);
447 static void drop_key_clear(struct dpif_backer *);
449 struct ofproto_dpif {
450 struct hmap_node all_ofproto_dpifs_node; /* In 'all_ofproto_dpifs'. */
452 struct dpif_backer *backer;
454 /* Special OpenFlow rules. */
455 struct rule_dpif *miss_rule; /* Sends flow table misses to controller. */
456 struct rule_dpif *no_packet_in_rule; /* Drops flow table misses. */
457 struct rule_dpif *drop_frags_rule; /* Used in OFPC_FRAG_DROP mode. */
460 struct netflow *netflow;
461 struct dpif_sflow *sflow;
462 struct dpif_ipfix *ipfix;
463 struct hmap bundles; /* Contains "struct ofbundle"s. */
464 struct mac_learning *ml;
465 bool has_bonded_bundles;
466 struct mbridge *mbridge;
469 struct classifier facets; /* Contains 'struct facet's. */
470 long long int consistency_rl;
472 struct ovs_mutex stats_mutex;
473 struct netdev_stats stats OVS_GUARDED; /* To account packets generated and
474 * consumed in userspace. */
478 long long int stp_last_tick;
480 /* VLAN splinters. */
481 struct ovs_mutex vsp_mutex;
482 struct hmap realdev_vid_map OVS_GUARDED; /* (realdev,vid) -> vlandev. */
483 struct hmap vlandev_map OVS_GUARDED; /* vlandev -> (realdev,vid). */
486 struct sset ports; /* Set of standard port names. */
487 struct sset ghost_ports; /* Ports with no datapath port. */
488 struct sset port_poll_set; /* Queued names for port_poll() reply. */
489 int port_poll_errno; /* Last errno for port_poll() reply. */
491 /* Per ofproto's dpif stats. */
496 struct guarded_list pins; /* Contains "struct ofputil_packet_in"s. */
499 /* By default, flows in the datapath are wildcarded (megaflows). They
500 * may be disabled with the "ovs-appctl dpif/disable-megaflows" command. */
501 static bool enable_megaflows = true;
503 /* All existing ofproto_dpif instances, indexed by ->up.name. */
504 static struct hmap all_ofproto_dpifs = HMAP_INITIALIZER(&all_ofproto_dpifs);
506 static void ofproto_dpif_unixctl_init(void);
508 static inline struct ofproto_dpif *
509 ofproto_dpif_cast(const struct ofproto *ofproto)
511 ovs_assert(ofproto->ofproto_class == &ofproto_dpif_class);
512 return CONTAINER_OF(ofproto, struct ofproto_dpif, up);
515 static struct ofport_dpif *get_ofp_port(const struct ofproto_dpif *ofproto,
516 ofp_port_t ofp_port);
517 static void ofproto_trace(struct ofproto_dpif *, const struct flow *,
518 const struct ofpbuf *packet, struct ds *);
521 static void handle_upcalls(struct dpif_backer *);
523 /* Flow expiration. */
524 static int expire(struct dpif_backer *);
527 static void send_netflow_active_timeouts(struct ofproto_dpif *);
529 /* Global variables. */
530 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
532 /* Initial mappings of port to bridge mappings. */
533 static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports);
535 /* Executes 'fm'. The caller retains ownership of 'fm' and everything in
538 ofproto_dpif_flow_mod(struct ofproto_dpif *ofproto,
539 struct ofputil_flow_mod *fm)
541 ofproto_flow_mod(&ofproto->up, fm);
544 /* Appends 'pin' to the queue of "packet ins" to be sent to the controller.
545 * Takes ownership of 'pin' and pin->packet. */
547 ofproto_dpif_send_packet_in(struct ofproto_dpif *ofproto,
548 struct ofproto_packet_in *pin)
550 if (!guarded_list_push_back(&ofproto->pins, &pin->list_node, 1024)) {
551 COVERAGE_INC(packet_in_overflow);
552 free(CONST_CAST(void *, pin->up.packet));
557 /* Factory functions. */
560 init(const struct shash *iface_hints)
562 struct shash_node *node;
564 /* Make a local copy, since we don't own 'iface_hints' elements. */
565 SHASH_FOR_EACH(node, iface_hints) {
566 const struct iface_hint *orig_hint = node->data;
567 struct iface_hint *new_hint = xmalloc(sizeof *new_hint);
569 new_hint->br_name = xstrdup(orig_hint->br_name);
570 new_hint->br_type = xstrdup(orig_hint->br_type);
571 new_hint->ofp_port = orig_hint->ofp_port;
573 shash_add(&init_ofp_ports, node->name, new_hint);
578 enumerate_types(struct sset *types)
580 dp_enumerate_types(types);
584 enumerate_names(const char *type, struct sset *names)
586 struct ofproto_dpif *ofproto;
589 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
590 if (strcmp(type, ofproto->up.type)) {
593 sset_add(names, ofproto->up.name);
600 del(const char *type, const char *name)
605 error = dpif_open(name, type, &dpif);
607 error = dpif_delete(dpif);
614 port_open_type(const char *datapath_type, const char *port_type)
616 return dpif_port_open_type(datapath_type, port_type);
619 /* Type functions. */
621 static void process_dpif_port_changes(struct dpif_backer *);
622 static void process_dpif_all_ports_changed(struct dpif_backer *);
623 static void process_dpif_port_change(struct dpif_backer *,
624 const char *devname);
625 static void process_dpif_port_error(struct dpif_backer *, int error);
627 static struct ofproto_dpif *
628 lookup_ofproto_dpif_by_port_name(const char *name)
630 struct ofproto_dpif *ofproto;
632 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
633 if (sset_contains(&ofproto->ports, name)) {
642 type_run(const char *type)
644 static long long int push_timer = LLONG_MIN;
645 struct dpif_backer *backer;
647 backer = shash_find_data(&all_dpif_backers, type);
649 /* This is not necessarily a problem, since backers are only
650 * created on demand. */
654 dpif_run(backer->dpif);
656 /* The most natural place to push facet statistics is when they're pulled
657 * from the datapath. However, when there are many flows in the datapath,
658 * this expensive operation can occur so frequently, that it reduces our
659 * ability to quickly set up flows. To reduce the cost, we push statistics
661 if (time_msec() > push_timer) {
662 push_timer = time_msec() + 2000;
666 /* If vswitchd started with other_config:flow_restore_wait set as "true",
667 * and the configuration has now changed to "false", enable receiving
668 * packets from the datapath. */
669 if (!backer->recv_set_enable && !ofproto_get_flow_restore_wait()) {
672 backer->recv_set_enable = true;
674 error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
676 udpif_recv_set(backer->udpif, 0, false);
677 VLOG_ERR("Failed to enable receiving packets in dpif.");
680 udpif_recv_set(backer->udpif, n_handler_threads,
681 backer->recv_set_enable);
682 dpif_flow_flush(backer->dpif);
683 backer->need_revalidate = REV_RECONFIGURE;
686 /* If the n_handler_threads is reconfigured, call udpif_recv_set()
687 * to reset the handler threads. */
688 if (backer->n_handler_threads != n_handler_threads) {
689 udpif_recv_set(backer->udpif, n_handler_threads,
690 backer->recv_set_enable);
691 backer->n_handler_threads = n_handler_threads;
694 if (backer->need_revalidate) {
695 struct ofproto_dpif *ofproto;
696 struct simap_node *node;
697 struct simap tmp_backers;
699 /* Handle tunnel garbage collection. */
700 simap_init(&tmp_backers);
701 simap_swap(&backer->tnl_backers, &tmp_backers);
703 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
704 struct ofport_dpif *iter;
706 if (backer != ofproto->backer) {
710 HMAP_FOR_EACH (iter, up.hmap_node, &ofproto->up.ports) {
711 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
714 if (!iter->is_tunnel) {
718 dp_port = netdev_vport_get_dpif_port(iter->up.netdev,
719 namebuf, sizeof namebuf);
720 node = simap_find(&tmp_backers, dp_port);
722 simap_put(&backer->tnl_backers, dp_port, node->data);
723 simap_delete(&tmp_backers, node);
724 node = simap_find(&backer->tnl_backers, dp_port);
726 node = simap_find(&backer->tnl_backers, dp_port);
728 odp_port_t odp_port = ODPP_NONE;
730 if (!dpif_port_add(backer->dpif, iter->up.netdev,
732 simap_put(&backer->tnl_backers, dp_port,
733 odp_to_u32(odp_port));
734 node = simap_find(&backer->tnl_backers, dp_port);
739 iter->odp_port = node ? u32_to_odp(node->data) : ODPP_NONE;
740 if (tnl_port_reconfigure(iter, iter->up.netdev,
742 backer->need_revalidate = REV_RECONFIGURE;
747 SIMAP_FOR_EACH (node, &tmp_backers) {
748 dpif_port_del(backer->dpif, u32_to_odp(node->data));
750 simap_destroy(&tmp_backers);
752 switch (backer->need_revalidate) {
753 case REV_RECONFIGURE: COVERAGE_INC(rev_reconfigure); break;
754 case REV_STP: COVERAGE_INC(rev_stp); break;
755 case REV_BOND: COVERAGE_INC(rev_bond); break;
756 case REV_PORT_TOGGLED: COVERAGE_INC(rev_port_toggled); break;
757 case REV_FLOW_TABLE: COVERAGE_INC(rev_flow_table); break;
758 case REV_MAC_LEARNING: COVERAGE_INC(rev_mac_learning); break;
759 case REV_INCONSISTENCY: COVERAGE_INC(rev_inconsistency); break;
761 backer->need_revalidate = 0;
763 /* Clear the drop_keys in case we should now be accepting some
764 * formerly dropped flows. */
765 drop_key_clear(backer);
767 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
768 struct facet *facet, *next;
769 struct ofport_dpif *ofport;
770 struct cls_cursor cursor;
771 struct ofbundle *bundle;
773 if (ofproto->backer != backer) {
777 ovs_rwlock_wrlock(&xlate_rwlock);
778 xlate_ofproto_set(ofproto, ofproto->up.name,
779 ofproto->backer->dpif, ofproto->miss_rule,
780 ofproto->no_packet_in_rule, ofproto->ml,
781 ofproto->stp, ofproto->mbridge,
782 ofproto->sflow, ofproto->ipfix,
783 ofproto->up.frag_handling,
784 ofproto->up.forward_bpdu,
785 connmgr_has_in_band(ofproto->up.connmgr),
786 ofproto->netflow != NULL);
788 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
789 xlate_bundle_set(ofproto, bundle, bundle->name,
790 bundle->vlan_mode, bundle->vlan,
791 bundle->trunks, bundle->use_priority_tags,
792 bundle->bond, bundle->lacp,
796 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
797 int stp_port = ofport->stp_port
798 ? stp_port_no(ofport->stp_port)
800 xlate_ofport_set(ofproto, ofport->bundle, ofport,
801 ofport->up.ofp_port, ofport->odp_port,
802 ofport->up.netdev, ofport->cfm,
803 ofport->bfd, ofport->peer, stp_port,
804 ofport->qdscp, ofport->n_qdscp,
805 ofport->up.pp.config, ofport->is_tunnel,
808 ovs_rwlock_unlock(&xlate_rwlock);
810 /* Only ofproto-dpif cares about the facet classifier so we just
811 * lock cls_cursor_init() to appease the thread safety analysis. */
812 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
813 cls_cursor_init(&cursor, &ofproto->facets, NULL);
814 ovs_rwlock_unlock(&ofproto->facets.rwlock);
815 CLS_CURSOR_FOR_EACH_SAFE (facet, next, cr, &cursor) {
816 facet_revalidate(facet);
821 udpif_revalidate(backer->udpif);
824 if (!backer->recv_set_enable) {
825 /* Wake up before a max of 1000ms. */
826 timer_set_duration(&backer->next_expiration, 1000);
827 } else if (timer_expired(&backer->next_expiration)) {
828 int delay = expire(backer);
829 timer_set_duration(&backer->next_expiration, delay);
832 process_dpif_port_changes(backer);
834 if (backer->governor) {
837 governor_run(backer->governor);
839 /* If the governor has shrunk to its minimum size and the number of
840 * subfacets has dwindled, then drop the governor entirely.
842 * For hysteresis, the number of subfacets to drop the governor is
843 * smaller than the number needed to trigger its creation. */
844 n_subfacets = hmap_count(&backer->subfacets);
845 if (n_subfacets * 4 < flow_eviction_threshold
846 && governor_is_idle(backer->governor)) {
847 governor_destroy(backer->governor);
848 backer->governor = NULL;
855 /* Check for and handle port changes in 'backer''s dpif. */
857 process_dpif_port_changes(struct dpif_backer *backer)
863 error = dpif_port_poll(backer->dpif, &devname);
869 process_dpif_all_ports_changed(backer);
873 process_dpif_port_change(backer, devname);
878 process_dpif_port_error(backer, error);
885 process_dpif_all_ports_changed(struct dpif_backer *backer)
887 struct ofproto_dpif *ofproto;
888 struct dpif_port dpif_port;
889 struct dpif_port_dump dump;
890 struct sset devnames;
893 sset_init(&devnames);
894 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
895 if (ofproto->backer == backer) {
896 struct ofport *ofport;
898 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
899 sset_add(&devnames, netdev_get_name(ofport->netdev));
903 DPIF_PORT_FOR_EACH (&dpif_port, &dump, backer->dpif) {
904 sset_add(&devnames, dpif_port.name);
907 SSET_FOR_EACH (devname, &devnames) {
908 process_dpif_port_change(backer, devname);
910 sset_destroy(&devnames);
914 process_dpif_port_change(struct dpif_backer *backer, const char *devname)
916 struct ofproto_dpif *ofproto;
917 struct dpif_port port;
919 /* Don't report on the datapath's device. */
920 if (!strcmp(devname, dpif_base_name(backer->dpif))) {
924 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node,
925 &all_ofproto_dpifs) {
926 if (simap_contains(&ofproto->backer->tnl_backers, devname)) {
931 ofproto = lookup_ofproto_dpif_by_port_name(devname);
932 if (dpif_port_query_by_name(backer->dpif, devname, &port)) {
933 /* The port was removed. If we know the datapath,
934 * report it through poll_set(). If we don't, it may be
935 * notifying us of a removal we initiated, so ignore it.
936 * If there's a pending ENOBUFS, let it stand, since
937 * everything will be reevaluated. */
938 if (ofproto && ofproto->port_poll_errno != ENOBUFS) {
939 sset_add(&ofproto->port_poll_set, devname);
940 ofproto->port_poll_errno = 0;
942 } else if (!ofproto) {
943 /* The port was added, but we don't know with which
944 * ofproto we should associate it. Delete it. */
945 dpif_port_del(backer->dpif, port.port_no);
947 struct ofport_dpif *ofport;
949 ofport = ofport_dpif_cast(shash_find_data(
950 &ofproto->up.port_by_name, devname));
952 && ofport->odp_port != port.port_no
953 && !odp_port_to_ofport(backer, port.port_no))
955 /* 'ofport''s datapath port number has changed from
956 * 'ofport->odp_port' to 'port.port_no'. Update our internal data
957 * structures to match. */
958 ovs_rwlock_wrlock(&backer->odp_to_ofport_lock);
959 hmap_remove(&backer->odp_to_ofport_map, &ofport->odp_port_node);
960 ofport->odp_port = port.port_no;
961 hmap_insert(&backer->odp_to_ofport_map, &ofport->odp_port_node,
962 hash_odp_port(port.port_no));
963 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
964 backer->need_revalidate = REV_RECONFIGURE;
967 dpif_port_destroy(&port);
970 /* Propagate 'error' to all ofprotos based on 'backer'. */
972 process_dpif_port_error(struct dpif_backer *backer, int error)
974 struct ofproto_dpif *ofproto;
976 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
977 if (ofproto->backer == backer) {
978 sset_clear(&ofproto->port_poll_set);
979 ofproto->port_poll_errno = error;
985 dpif_backer_run_fast(struct dpif_backer *backer)
987 handle_upcalls(backer);
993 type_run_fast(const char *type)
995 struct dpif_backer *backer;
997 backer = shash_find_data(&all_dpif_backers, type);
999 /* This is not necessarily a problem, since backers are only
1000 * created on demand. */
1004 return dpif_backer_run_fast(backer);
1010 static long long int port_rl = LLONG_MIN;
1012 if (time_msec() >= port_rl) {
1013 struct ofproto_dpif *ofproto;
1015 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
1016 run_fast(&ofproto->up);
1018 port_rl = time_msec() + 200;
1023 type_wait(const char *type)
1025 struct dpif_backer *backer;
1027 backer = shash_find_data(&all_dpif_backers, type);
1029 /* This is not necessarily a problem, since backers are only
1030 * created on demand. */
1034 if (backer->governor) {
1035 governor_wait(backer->governor);
1038 timer_wait(&backer->next_expiration);
1039 dpif_wait(backer->dpif);
1040 udpif_wait(backer->udpif);
1043 /* Basic life-cycle. */
1045 static int add_internal_flows(struct ofproto_dpif *);
1047 static struct ofproto *
1050 struct ofproto_dpif *ofproto = xmalloc(sizeof *ofproto);
1051 return &ofproto->up;
1055 dealloc(struct ofproto *ofproto_)
1057 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1062 close_dpif_backer(struct dpif_backer *backer)
1064 ovs_assert(backer->refcount > 0);
1066 if (--backer->refcount) {
1070 drop_key_clear(backer);
1071 hmap_destroy(&backer->drop_keys);
1073 udpif_destroy(backer->udpif);
1075 simap_destroy(&backer->tnl_backers);
1076 ovs_rwlock_destroy(&backer->odp_to_ofport_lock);
1077 hmap_destroy(&backer->odp_to_ofport_map);
1078 shash_find_and_delete(&all_dpif_backers, backer->type);
1080 dpif_close(backer->dpif);
1082 ovs_assert(hmap_is_empty(&backer->subfacets));
1083 hmap_destroy(&backer->subfacets);
1084 governor_destroy(backer->governor);
1089 /* Datapath port slated for removal from datapath. */
1090 struct odp_garbage {
1091 struct list list_node;
1092 odp_port_t odp_port;
1096 open_dpif_backer(const char *type, struct dpif_backer **backerp)
1098 struct dpif_backer *backer;
1099 struct dpif_port_dump port_dump;
1100 struct dpif_port port;
1101 struct shash_node *node;
1102 struct list garbage_list;
1103 struct odp_garbage *garbage, *next;
1109 backer = shash_find_data(&all_dpif_backers, type);
1116 backer_name = xasprintf("ovs-%s", type);
1118 /* Remove any existing datapaths, since we assume we're the only
1119 * userspace controlling the datapath. */
1121 dp_enumerate_names(type, &names);
1122 SSET_FOR_EACH(name, &names) {
1123 struct dpif *old_dpif;
1125 /* Don't remove our backer if it exists. */
1126 if (!strcmp(name, backer_name)) {
1130 if (dpif_open(name, type, &old_dpif)) {
1131 VLOG_WARN("couldn't open old datapath %s to remove it", name);
1133 dpif_delete(old_dpif);
1134 dpif_close(old_dpif);
1137 sset_destroy(&names);
1139 backer = xmalloc(sizeof *backer);
1141 error = dpif_create_and_open(backer_name, type, &backer->dpif);
1144 VLOG_ERR("failed to open datapath of type %s: %s", type,
1145 ovs_strerror(error));
1149 backer->udpif = udpif_create(backer, backer->dpif);
1151 backer->type = xstrdup(type);
1152 backer->governor = NULL;
1153 backer->refcount = 1;
1154 hmap_init(&backer->odp_to_ofport_map);
1155 ovs_rwlock_init(&backer->odp_to_ofport_lock);
1156 hmap_init(&backer->drop_keys);
1157 hmap_init(&backer->subfacets);
1158 timer_set_duration(&backer->next_expiration, 1000);
1159 backer->need_revalidate = 0;
1160 simap_init(&backer->tnl_backers);
1161 backer->recv_set_enable = !ofproto_get_flow_restore_wait();
1164 if (backer->recv_set_enable) {
1165 dpif_flow_flush(backer->dpif);
1168 /* Loop through the ports already on the datapath and remove any
1169 * that we don't need anymore. */
1170 list_init(&garbage_list);
1171 dpif_port_dump_start(&port_dump, backer->dpif);
1172 while (dpif_port_dump_next(&port_dump, &port)) {
1173 node = shash_find(&init_ofp_ports, port.name);
1174 if (!node && strcmp(port.name, dpif_base_name(backer->dpif))) {
1175 garbage = xmalloc(sizeof *garbage);
1176 garbage->odp_port = port.port_no;
1177 list_push_front(&garbage_list, &garbage->list_node);
1180 dpif_port_dump_done(&port_dump);
1182 LIST_FOR_EACH_SAFE (garbage, next, list_node, &garbage_list) {
1183 dpif_port_del(backer->dpif, garbage->odp_port);
1184 list_remove(&garbage->list_node);
1188 shash_add(&all_dpif_backers, type, backer);
1190 error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
1192 VLOG_ERR("failed to listen on datapath of type %s: %s",
1193 type, ovs_strerror(error));
1194 close_dpif_backer(backer);
1197 udpif_recv_set(backer->udpif, n_handler_threads,
1198 backer->recv_set_enable);
1199 backer->n_handler_threads = n_handler_threads;
1201 backer->max_n_subfacet = 0;
1202 backer->created = time_msec();
1203 backer->avg_n_subfacet = 0;
1204 backer->avg_subfacet_life = 0;
1210 construct(struct ofproto *ofproto_)
1212 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1213 struct shash_node *node, *next;
1217 error = open_dpif_backer(ofproto->up.type, &ofproto->backer);
1222 max_ports = dpif_get_max_ports(ofproto->backer->dpif);
1223 ofproto_init_max_ports(ofproto_, MIN(max_ports, ofp_to_u16(OFPP_MAX)));
1225 ofproto->netflow = NULL;
1226 ofproto->sflow = NULL;
1227 ofproto->ipfix = NULL;
1228 ofproto->stp = NULL;
1229 hmap_init(&ofproto->bundles);
1230 ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME);
1231 ofproto->mbridge = mbridge_create();
1232 ofproto->has_bonded_bundles = false;
1233 ovs_mutex_init(&ofproto->stats_mutex);
1234 ovs_mutex_init(&ofproto->vsp_mutex);
1236 classifier_init(&ofproto->facets);
1237 ofproto->consistency_rl = LLONG_MIN;
1239 guarded_list_init(&ofproto->pins);
1241 ofproto_dpif_unixctl_init();
1243 hmap_init(&ofproto->vlandev_map);
1244 hmap_init(&ofproto->realdev_vid_map);
1246 sset_init(&ofproto->ports);
1247 sset_init(&ofproto->ghost_ports);
1248 sset_init(&ofproto->port_poll_set);
1249 ofproto->port_poll_errno = 0;
1251 SHASH_FOR_EACH_SAFE (node, next, &init_ofp_ports) {
1252 struct iface_hint *iface_hint = node->data;
1254 if (!strcmp(iface_hint->br_name, ofproto->up.name)) {
1255 /* Check if the datapath already has this port. */
1256 if (dpif_port_exists(ofproto->backer->dpif, node->name)) {
1257 sset_add(&ofproto->ports, node->name);
1260 free(iface_hint->br_name);
1261 free(iface_hint->br_type);
1263 shash_delete(&init_ofp_ports, node);
1267 hmap_insert(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node,
1268 hash_string(ofproto->up.name, 0));
1269 memset(&ofproto->stats, 0, sizeof ofproto->stats);
1271 ofproto_init_tables(ofproto_, N_TABLES);
1272 error = add_internal_flows(ofproto);
1273 ofproto->up.tables[TBL_INTERNAL].flags = OFTABLE_HIDDEN | OFTABLE_READONLY;
1276 ofproto->n_missed = 0;
1282 add_internal_flow(struct ofproto_dpif *ofproto, int id,
1283 const struct ofpbuf *ofpacts, struct rule_dpif **rulep)
1285 struct ofputil_flow_mod fm;
1288 match_init_catchall(&fm.match);
1290 match_set_reg(&fm.match, 0, id);
1291 fm.new_cookie = htonll(0);
1292 fm.cookie = htonll(0);
1293 fm.cookie_mask = htonll(0);
1294 fm.modify_cookie = false;
1295 fm.table_id = TBL_INTERNAL;
1296 fm.command = OFPFC_ADD;
1297 fm.idle_timeout = 0;
1298 fm.hard_timeout = 0;
1302 fm.ofpacts = ofpacts->data;
1303 fm.ofpacts_len = ofpacts->size;
1305 error = ofproto_flow_mod(&ofproto->up, &fm);
1307 VLOG_ERR_RL(&rl, "failed to add internal flow %d (%s)",
1308 id, ofperr_to_string(error));
1312 if (rule_dpif_lookup_in_table(ofproto, &fm.match.flow, NULL, TBL_INTERNAL,
1314 rule_dpif_unref(*rulep);
1323 add_internal_flows(struct ofproto_dpif *ofproto)
1325 struct ofpact_controller *controller;
1326 uint64_t ofpacts_stub[128 / 8];
1327 struct ofpbuf ofpacts;
1331 ofpbuf_use_stack(&ofpacts, ofpacts_stub, sizeof ofpacts_stub);
1334 controller = ofpact_put_CONTROLLER(&ofpacts);
1335 controller->max_len = UINT16_MAX;
1336 controller->controller_id = 0;
1337 controller->reason = OFPR_NO_MATCH;
1338 ofpact_pad(&ofpacts);
1340 error = add_internal_flow(ofproto, id++, &ofpacts, &ofproto->miss_rule);
1345 ofpbuf_clear(&ofpacts);
1346 error = add_internal_flow(ofproto, id++, &ofpacts,
1347 &ofproto->no_packet_in_rule);
1352 error = add_internal_flow(ofproto, id++, &ofpacts,
1353 &ofproto->drop_frags_rule);
1358 destruct(struct ofproto *ofproto_)
1360 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1361 struct rule_dpif *rule, *next_rule;
1362 struct ofproto_packet_in *pin, *next_pin;
1363 struct facet *facet, *next_facet;
1364 struct cls_cursor cursor;
1365 struct oftable *table;
1368 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
1369 cls_cursor_init(&cursor, &ofproto->facets, NULL);
1370 ovs_rwlock_unlock(&ofproto->facets.rwlock);
1371 CLS_CURSOR_FOR_EACH_SAFE (facet, next_facet, cr, &cursor) {
1372 facet_remove(facet);
1375 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1376 ovs_rwlock_wrlock(&xlate_rwlock);
1377 xlate_remove_ofproto(ofproto);
1378 ovs_rwlock_unlock(&xlate_rwlock);
1380 /* Discard any flow_miss_batches queued up for 'ofproto', avoiding a
1381 * use-after-free error. */
1382 udpif_revalidate(ofproto->backer->udpif);
1384 hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node);
1386 OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) {
1387 struct cls_cursor cursor;
1389 ovs_rwlock_rdlock(&table->cls.rwlock);
1390 cls_cursor_init(&cursor, &table->cls, NULL);
1391 ovs_rwlock_unlock(&table->cls.rwlock);
1392 CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) {
1393 ofproto_rule_delete(&ofproto->up, &rule->up);
1397 guarded_list_pop_all(&ofproto->pins, &pins);
1398 LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
1399 list_remove(&pin->list_node);
1400 free(CONST_CAST(void *, pin->up.packet));
1403 guarded_list_destroy(&ofproto->pins);
1405 mbridge_unref(ofproto->mbridge);
1407 netflow_destroy(ofproto->netflow);
1408 dpif_sflow_unref(ofproto->sflow);
1409 hmap_destroy(&ofproto->bundles);
1410 mac_learning_unref(ofproto->ml);
1412 classifier_destroy(&ofproto->facets);
1414 hmap_destroy(&ofproto->vlandev_map);
1415 hmap_destroy(&ofproto->realdev_vid_map);
1417 sset_destroy(&ofproto->ports);
1418 sset_destroy(&ofproto->ghost_ports);
1419 sset_destroy(&ofproto->port_poll_set);
1421 ovs_mutex_destroy(&ofproto->stats_mutex);
1422 ovs_mutex_destroy(&ofproto->vsp_mutex);
1424 close_dpif_backer(ofproto->backer);
1428 run_fast(struct ofproto *ofproto_)
1430 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1431 struct ofproto_packet_in *pin, *next_pin;
1434 /* Do not perform any periodic activity required by 'ofproto' while
1435 * waiting for flow restore to complete. */
1436 if (ofproto_get_flow_restore_wait()) {
1440 guarded_list_pop_all(&ofproto->pins, &pins);
1441 LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
1442 connmgr_send_packet_in(ofproto->up.connmgr, pin);
1443 list_remove(&pin->list_node);
1444 free(CONST_CAST(void *, pin->up.packet));
1452 run(struct ofproto *ofproto_)
1454 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1455 struct ofport_dpif *ofport;
1456 struct ofbundle *bundle;
1459 if (mbridge_need_revalidate(ofproto->mbridge)) {
1460 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1461 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1462 mac_learning_flush(ofproto->ml);
1463 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1466 /* Do not perform any periodic activity below required by 'ofproto' while
1467 * waiting for flow restore to complete. */
1468 if (ofproto_get_flow_restore_wait()) {
1472 error = run_fast(ofproto_);
1477 if (ofproto->netflow) {
1478 if (netflow_run(ofproto->netflow)) {
1479 send_netflow_active_timeouts(ofproto);
1482 if (ofproto->sflow) {
1483 dpif_sflow_run(ofproto->sflow);
1485 if (ofproto->ipfix) {
1486 dpif_ipfix_run(ofproto->ipfix);
1489 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1492 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1497 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1498 if (mac_learning_run(ofproto->ml)) {
1499 ofproto->backer->need_revalidate = REV_MAC_LEARNING;
1501 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1503 /* Check the consistency of a random facet, to aid debugging. */
1504 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
1505 if (time_msec() >= ofproto->consistency_rl
1506 && !classifier_is_empty(&ofproto->facets)
1507 && !ofproto->backer->need_revalidate) {
1508 struct cls_subtable *table;
1509 struct cls_rule *cr;
1510 struct facet *facet;
1512 ofproto->consistency_rl = time_msec() + 250;
1514 table = CONTAINER_OF(hmap_random_node(&ofproto->facets.subtables),
1515 struct cls_subtable, hmap_node);
1516 cr = CONTAINER_OF(hmap_random_node(&table->rules), struct cls_rule,
1518 facet = CONTAINER_OF(cr, struct facet, cr);
1520 if (!facet_check_consistency(facet)) {
1521 ofproto->backer->need_revalidate = REV_INCONSISTENCY;
1524 ovs_rwlock_unlock(&ofproto->facets.rwlock);
1530 wait(struct ofproto *ofproto_)
1532 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1533 struct ofbundle *bundle;
1535 if (ofproto_get_flow_restore_wait()) {
1539 if (ofproto->sflow) {
1540 dpif_sflow_wait(ofproto->sflow);
1542 if (ofproto->ipfix) {
1543 dpif_ipfix_wait(ofproto->ipfix);
1545 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1546 bundle_wait(bundle);
1548 if (ofproto->netflow) {
1549 netflow_wait(ofproto->netflow);
1551 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
1552 mac_learning_wait(ofproto->ml);
1553 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1555 if (ofproto->backer->need_revalidate) {
1556 /* Shouldn't happen, but if it does just go around again. */
1557 VLOG_DBG_RL(&rl, "need revalidate in ofproto_wait_cb()");
1558 poll_immediate_wake();
1563 get_memory_usage(const struct ofproto *ofproto_, struct simap *usage)
1565 const struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1566 struct cls_cursor cursor;
1567 size_t n_subfacets = 0;
1568 struct facet *facet;
1570 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
1571 simap_increase(usage, "facets", classifier_count(&ofproto->facets));
1572 ovs_rwlock_unlock(&ofproto->facets.rwlock);
1574 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
1575 cls_cursor_init(&cursor, &ofproto->facets, NULL);
1576 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
1577 n_subfacets += list_size(&facet->subfacets);
1579 ovs_rwlock_unlock(&ofproto->facets.rwlock);
1580 simap_increase(usage, "subfacets", n_subfacets);
1584 flush(struct ofproto *ofproto_)
1586 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1587 struct subfacet *subfacet, *next_subfacet;
1588 struct subfacet *batch[SUBFACET_DESTROY_MAX_BATCH];
1592 HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node,
1593 &ofproto->backer->subfacets) {
1594 if (subfacet->facet->ofproto != ofproto) {
1598 if (subfacet->path != SF_NOT_INSTALLED) {
1599 batch[n_batch++] = subfacet;
1600 if (n_batch >= SUBFACET_DESTROY_MAX_BATCH) {
1601 subfacet_destroy_batch(ofproto->backer, batch, n_batch);
1605 subfacet_destroy(subfacet);
1610 subfacet_destroy_batch(ofproto->backer, batch, n_batch);
1615 get_features(struct ofproto *ofproto_ OVS_UNUSED,
1616 bool *arp_match_ip, enum ofputil_action_bitmap *actions)
1618 *arp_match_ip = true;
1619 *actions = (OFPUTIL_A_OUTPUT |
1620 OFPUTIL_A_SET_VLAN_VID |
1621 OFPUTIL_A_SET_VLAN_PCP |
1622 OFPUTIL_A_STRIP_VLAN |
1623 OFPUTIL_A_SET_DL_SRC |
1624 OFPUTIL_A_SET_DL_DST |
1625 OFPUTIL_A_SET_NW_SRC |
1626 OFPUTIL_A_SET_NW_DST |
1627 OFPUTIL_A_SET_NW_TOS |
1628 OFPUTIL_A_SET_TP_SRC |
1629 OFPUTIL_A_SET_TP_DST |
1634 get_tables(struct ofproto *ofproto_, struct ofp12_table_stats *ots)
1636 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1637 struct dpif_dp_stats s;
1638 uint64_t n_miss, n_no_pkt_in, n_bytes, n_dropped_frags;
1641 strcpy(ots->name, "classifier");
1643 dpif_get_dp_stats(ofproto->backer->dpif, &s);
1644 rule_get_stats(&ofproto->miss_rule->up, &n_miss, &n_bytes);
1645 rule_get_stats(&ofproto->no_packet_in_rule->up, &n_no_pkt_in, &n_bytes);
1646 rule_get_stats(&ofproto->drop_frags_rule->up, &n_dropped_frags, &n_bytes);
1648 n_lookup = s.n_hit + s.n_missed - n_dropped_frags;
1649 ots->lookup_count = htonll(n_lookup);
1650 ots->matched_count = htonll(n_lookup - n_miss - n_no_pkt_in);
1653 static struct ofport *
1656 struct ofport_dpif *port = xmalloc(sizeof *port);
1661 port_dealloc(struct ofport *port_)
1663 struct ofport_dpif *port = ofport_dpif_cast(port_);
1668 port_construct(struct ofport *port_)
1670 struct ofport_dpif *port = ofport_dpif_cast(port_);
1671 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1672 const struct netdev *netdev = port->up.netdev;
1673 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
1674 struct dpif_port dpif_port;
1677 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1678 port->bundle = NULL;
1681 port->may_enable = true;
1682 port->stp_port = NULL;
1683 port->stp_state = STP_DISABLED;
1684 port->is_tunnel = false;
1688 port->realdev_ofp_port = 0;
1689 port->vlandev_vid = 0;
1690 port->carrier_seq = netdev_get_carrier_resets(netdev);
1692 if (netdev_vport_is_patch(netdev)) {
1693 /* By bailing out here, we don't submit the port to the sFlow module
1694 * to be considered for counter polling export. This is correct
1695 * because the patch port represents an interface that sFlow considers
1696 * to be "internal" to the switch as a whole, and therefore not an
1697 * candidate for counter polling. */
1698 port->odp_port = ODPP_NONE;
1699 ofport_update_peer(port);
1703 error = dpif_port_query_by_name(ofproto->backer->dpif,
1704 netdev_vport_get_dpif_port(netdev, namebuf,
1711 port->odp_port = dpif_port.port_no;
1713 if (netdev_get_tunnel_config(netdev)) {
1714 tnl_port_add(port, port->up.netdev, port->odp_port);
1715 port->is_tunnel = true;
1717 /* Sanity-check that a mapping doesn't already exist. This
1718 * shouldn't happen for non-tunnel ports. */
1719 if (odp_port_to_ofp_port(ofproto, port->odp_port) != OFPP_NONE) {
1720 VLOG_ERR("port %s already has an OpenFlow port number",
1722 dpif_port_destroy(&dpif_port);
1726 ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
1727 hmap_insert(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node,
1728 hash_odp_port(port->odp_port));
1729 ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
1731 dpif_port_destroy(&dpif_port);
1733 if (ofproto->sflow) {
1734 dpif_sflow_add_port(ofproto->sflow, port_, port->odp_port);
1741 port_destruct(struct ofport *port_)
1743 struct ofport_dpif *port = ofport_dpif_cast(port_);
1744 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1745 const char *devname = netdev_get_name(port->up.netdev);
1746 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
1747 const char *dp_port_name;
1749 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1750 ovs_rwlock_wrlock(&xlate_rwlock);
1751 xlate_ofport_remove(port);
1752 ovs_rwlock_unlock(&xlate_rwlock);
1754 dp_port_name = netdev_vport_get_dpif_port(port->up.netdev, namebuf,
1756 if (dpif_port_exists(ofproto->backer->dpif, dp_port_name)) {
1757 /* The underlying device is still there, so delete it. This
1758 * happens when the ofproto is being destroyed, since the caller
1759 * assumes that removal of attached ports will happen as part of
1761 if (!port->is_tunnel) {
1762 dpif_port_del(ofproto->backer->dpif, port->odp_port);
1767 port->peer->peer = NULL;
1771 if (port->odp_port != ODPP_NONE && !port->is_tunnel) {
1772 ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
1773 hmap_remove(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node);
1774 ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
1778 sset_find_and_delete(&ofproto->ports, devname);
1779 sset_find_and_delete(&ofproto->ghost_ports, devname);
1780 bundle_remove(port_);
1781 set_cfm(port_, NULL);
1782 set_bfd(port_, NULL);
1783 if (ofproto->sflow) {
1784 dpif_sflow_del_port(ofproto->sflow, port->odp_port);
1791 port_modified(struct ofport *port_)
1793 struct ofport_dpif *port = ofport_dpif_cast(port_);
1795 if (port->bundle && port->bundle->bond) {
1796 bond_slave_set_netdev(port->bundle->bond, port, port->up.netdev);
1800 cfm_set_netdev(port->cfm, port->up.netdev);
1804 bfd_set_netdev(port->bfd, port->up.netdev);
1807 ofproto_dpif_monitor_port_update(port, port->bfd, port->cfm,
1808 port->up.pp.hw_addr);
1810 if (port->is_tunnel && tnl_port_reconfigure(port, port->up.netdev,
1812 ofproto_dpif_cast(port->up.ofproto)->backer->need_revalidate =
1816 ofport_update_peer(port);
1820 port_reconfigured(struct ofport *port_, enum ofputil_port_config old_config)
1822 struct ofport_dpif *port = ofport_dpif_cast(port_);
1823 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1824 enum ofputil_port_config changed = old_config ^ port->up.pp.config;
1826 if (changed & (OFPUTIL_PC_NO_RECV | OFPUTIL_PC_NO_RECV_STP |
1827 OFPUTIL_PC_NO_FWD | OFPUTIL_PC_NO_FLOOD |
1828 OFPUTIL_PC_NO_PACKET_IN)) {
1829 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1831 if (changed & OFPUTIL_PC_NO_FLOOD && port->bundle) {
1832 bundle_update(port->bundle);
1838 set_sflow(struct ofproto *ofproto_,
1839 const struct ofproto_sflow_options *sflow_options)
1841 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1842 struct dpif_sflow *ds = ofproto->sflow;
1844 if (sflow_options) {
1846 struct ofport_dpif *ofport;
1848 ds = ofproto->sflow = dpif_sflow_create();
1849 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1850 dpif_sflow_add_port(ds, &ofport->up, ofport->odp_port);
1852 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1854 dpif_sflow_set_options(ds, sflow_options);
1857 dpif_sflow_unref(ds);
1858 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1859 ofproto->sflow = NULL;
1867 struct ofproto *ofproto_,
1868 const struct ofproto_ipfix_bridge_exporter_options *bridge_exporter_options,
1869 const struct ofproto_ipfix_flow_exporter_options *flow_exporters_options,
1870 size_t n_flow_exporters_options)
1872 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1873 struct dpif_ipfix *di = ofproto->ipfix;
1874 bool has_options = bridge_exporter_options || flow_exporters_options;
1876 if (has_options && !di) {
1877 di = ofproto->ipfix = dpif_ipfix_create();
1881 /* Call set_options in any case to cleanly flush the flow
1882 * caches in the last exporters that are to be destroyed. */
1883 dpif_ipfix_set_options(
1884 di, bridge_exporter_options, flow_exporters_options,
1885 n_flow_exporters_options);
1888 dpif_ipfix_unref(di);
1889 ofproto->ipfix = NULL;
1897 set_cfm(struct ofport *ofport_, const struct cfm_settings *s)
1899 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1904 struct ofproto_dpif *ofproto;
1906 ofproto = ofproto_dpif_cast(ofport->up.ofproto);
1907 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1908 ofport->cfm = cfm_create(ofport->up.netdev);
1911 if (cfm_configure(ofport->cfm, s)) {
1918 cfm_unref(ofport->cfm);
1921 ofproto_dpif_monitor_port_update(ofport, ofport->bfd, ofport->cfm,
1922 ofport->up.pp.hw_addr);
1927 get_cfm_status(const struct ofport *ofport_,
1928 struct ofproto_cfm_status *status)
1930 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1933 status->faults = cfm_get_fault(ofport->cfm);
1934 status->remote_opstate = cfm_get_opup(ofport->cfm);
1935 status->health = cfm_get_health(ofport->cfm);
1936 cfm_get_remote_mpids(ofport->cfm, &status->rmps, &status->n_rmps);
1944 set_bfd(struct ofport *ofport_, const struct smap *cfg)
1946 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto);
1947 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1951 ofport->bfd = bfd_configure(old, netdev_get_name(ofport->up.netdev),
1952 cfg, ofport->up.netdev);
1953 if (ofport->bfd != old) {
1954 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1956 ofproto_dpif_monitor_port_update(ofport, ofport->bfd, ofport->cfm,
1957 ofport->up.pp.hw_addr);
1962 get_bfd_status(struct ofport *ofport_, struct smap *smap)
1964 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1967 bfd_get_status(ofport->bfd, smap);
1974 /* Spanning Tree. */
1977 send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_)
1979 struct ofproto_dpif *ofproto = ofproto_;
1980 struct stp_port *sp = stp_get_port(ofproto->stp, port_num);
1981 struct ofport_dpif *ofport;
1983 ofport = stp_port_get_aux(sp);
1985 VLOG_WARN_RL(&rl, "%s: cannot send BPDU on unknown port %d",
1986 ofproto->up.name, port_num);
1988 struct eth_header *eth = pkt->l2;
1990 netdev_get_etheraddr(ofport->up.netdev, eth->eth_src);
1991 if (eth_addr_is_zero(eth->eth_src)) {
1992 VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d "
1993 "with unknown MAC", ofproto->up.name, port_num);
1995 ofproto_dpif_send_packet(ofport, pkt);
2001 /* Configures STP on 'ofproto_' using the settings defined in 's'. */
2003 set_stp(struct ofproto *ofproto_, const struct ofproto_stp_settings *s)
2005 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2007 /* Only revalidate flows if the configuration changed. */
2008 if (!s != !ofproto->stp) {
2009 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2013 if (!ofproto->stp) {
2014 ofproto->stp = stp_create(ofproto_->name, s->system_id,
2015 send_bpdu_cb, ofproto);
2016 ofproto->stp_last_tick = time_msec();
2019 stp_set_bridge_id(ofproto->stp, s->system_id);
2020 stp_set_bridge_priority(ofproto->stp, s->priority);
2021 stp_set_hello_time(ofproto->stp, s->hello_time);
2022 stp_set_max_age(ofproto->stp, s->max_age);
2023 stp_set_forward_delay(ofproto->stp, s->fwd_delay);
2025 struct ofport *ofport;
2027 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
2028 set_stp_port(ofport, NULL);
2031 stp_unref(ofproto->stp);
2032 ofproto->stp = NULL;
2039 get_stp_status(struct ofproto *ofproto_, struct ofproto_stp_status *s)
2041 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2045 s->bridge_id = stp_get_bridge_id(ofproto->stp);
2046 s->designated_root = stp_get_designated_root(ofproto->stp);
2047 s->root_path_cost = stp_get_root_path_cost(ofproto->stp);
2056 update_stp_port_state(struct ofport_dpif *ofport)
2058 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2059 enum stp_state state;
2061 /* Figure out new state. */
2062 state = ofport->stp_port ? stp_port_get_state(ofport->stp_port)
2066 if (ofport->stp_state != state) {
2067 enum ofputil_port_state of_state;
2070 VLOG_DBG_RL(&rl, "port %s: STP state changed from %s to %s",
2071 netdev_get_name(ofport->up.netdev),
2072 stp_state_name(ofport->stp_state),
2073 stp_state_name(state));
2074 if (stp_learn_in_state(ofport->stp_state)
2075 != stp_learn_in_state(state)) {
2076 /* xxx Learning action flows should also be flushed. */
2077 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2078 mac_learning_flush(ofproto->ml);
2079 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2081 fwd_change = stp_forward_in_state(ofport->stp_state)
2082 != stp_forward_in_state(state);
2084 ofproto->backer->need_revalidate = REV_STP;
2085 ofport->stp_state = state;
2086 ofport->stp_state_entered = time_msec();
2088 if (fwd_change && ofport->bundle) {
2089 bundle_update(ofport->bundle);
2092 /* Update the STP state bits in the OpenFlow port description. */
2093 of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK;
2094 of_state |= (state == STP_LISTENING ? OFPUTIL_PS_STP_LISTEN
2095 : state == STP_LEARNING ? OFPUTIL_PS_STP_LEARN
2096 : state == STP_FORWARDING ? OFPUTIL_PS_STP_FORWARD
2097 : state == STP_BLOCKING ? OFPUTIL_PS_STP_BLOCK
2099 ofproto_port_set_state(&ofport->up, of_state);
2103 /* Configures STP on 'ofport_' using the settings defined in 's'. The
2104 * caller is responsible for assigning STP port numbers and ensuring
2105 * there are no duplicates. */
2107 set_stp_port(struct ofport *ofport_,
2108 const struct ofproto_port_stp_settings *s)
2110 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2111 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2112 struct stp_port *sp = ofport->stp_port;
2114 if (!s || !s->enable) {
2116 ofport->stp_port = NULL;
2117 stp_port_disable(sp);
2118 update_stp_port_state(ofport);
2121 } else if (sp && stp_port_no(sp) != s->port_num
2122 && ofport == stp_port_get_aux(sp)) {
2123 /* The port-id changed, so disable the old one if it's not
2124 * already in use by another port. */
2125 stp_port_disable(sp);
2128 sp = ofport->stp_port = stp_get_port(ofproto->stp, s->port_num);
2129 stp_port_enable(sp);
2131 stp_port_set_aux(sp, ofport);
2132 stp_port_set_priority(sp, s->priority);
2133 stp_port_set_path_cost(sp, s->path_cost);
2135 update_stp_port_state(ofport);
2141 get_stp_port_status(struct ofport *ofport_,
2142 struct ofproto_port_stp_status *s)
2144 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2145 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2146 struct stp_port *sp = ofport->stp_port;
2148 if (!ofproto->stp || !sp) {
2154 s->port_id = stp_port_get_id(sp);
2155 s->state = stp_port_get_state(sp);
2156 s->sec_in_state = (time_msec() - ofport->stp_state_entered) / 1000;
2157 s->role = stp_port_get_role(sp);
2158 stp_port_get_counts(sp, &s->tx_count, &s->rx_count, &s->error_count);
2164 stp_run(struct ofproto_dpif *ofproto)
2167 long long int now = time_msec();
2168 long long int elapsed = now - ofproto->stp_last_tick;
2169 struct stp_port *sp;
2172 stp_tick(ofproto->stp, MIN(INT_MAX, elapsed));
2173 ofproto->stp_last_tick = now;
2175 while (stp_get_changed_port(ofproto->stp, &sp)) {
2176 struct ofport_dpif *ofport = stp_port_get_aux(sp);
2179 update_stp_port_state(ofport);
2183 if (stp_check_and_reset_fdb_flush(ofproto->stp)) {
2184 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2185 mac_learning_flush(ofproto->ml);
2186 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2192 stp_wait(struct ofproto_dpif *ofproto)
2195 poll_timer_wait(1000);
2200 set_queues(struct ofport *ofport_, const struct ofproto_port_queue *qdscp,
2203 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2204 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2206 if (ofport->n_qdscp != n_qdscp
2207 || (n_qdscp && memcmp(ofport->qdscp, qdscp,
2208 n_qdscp * sizeof *qdscp))) {
2209 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2210 free(ofport->qdscp);
2211 ofport->qdscp = n_qdscp
2212 ? xmemdup(qdscp, n_qdscp * sizeof *qdscp)
2214 ofport->n_qdscp = n_qdscp;
2222 /* Expires all MAC learning entries associated with 'bundle' and forces its
2223 * ofproto to revalidate every flow.
2225 * Normally MAC learning entries are removed only from the ofproto associated
2226 * with 'bundle', but if 'all_ofprotos' is true, then the MAC learning entries
2227 * are removed from every ofproto. When patch ports and SLB bonds are in use
2228 * and a VM migration happens and the gratuitous ARPs are somehow lost, this
2229 * avoids a MAC_ENTRY_IDLE_TIME delay before the migrated VM can communicate
2230 * with the host from which it migrated. */
2232 bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos)
2234 struct ofproto_dpif *ofproto = bundle->ofproto;
2235 struct mac_learning *ml = ofproto->ml;
2236 struct mac_entry *mac, *next_mac;
2238 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2239 ovs_rwlock_wrlock(&ml->rwlock);
2240 LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
2241 if (mac->port.p == bundle) {
2243 struct ofproto_dpif *o;
2245 HMAP_FOR_EACH (o, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
2247 struct mac_entry *e;
2249 ovs_rwlock_wrlock(&o->ml->rwlock);
2250 e = mac_learning_lookup(o->ml, mac->mac, mac->vlan);
2252 mac_learning_expire(o->ml, e);
2254 ovs_rwlock_unlock(&o->ml->rwlock);
2259 mac_learning_expire(ml, mac);
2262 ovs_rwlock_unlock(&ml->rwlock);
2265 static struct ofbundle *
2266 bundle_lookup(const struct ofproto_dpif *ofproto, void *aux)
2268 struct ofbundle *bundle;
2270 HMAP_FOR_EACH_IN_BUCKET (bundle, hmap_node, hash_pointer(aux, 0),
2271 &ofproto->bundles) {
2272 if (bundle->aux == aux) {
2280 bundle_update(struct ofbundle *bundle)
2282 struct ofport_dpif *port;
2284 bundle->floodable = true;
2285 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2286 if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
2287 || !stp_forward_in_state(port->stp_state)) {
2288 bundle->floodable = false;
2295 bundle_del_port(struct ofport_dpif *port)
2297 struct ofbundle *bundle = port->bundle;
2299 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2301 list_remove(&port->bundle_node);
2302 port->bundle = NULL;
2305 lacp_slave_unregister(bundle->lacp, port);
2308 bond_slave_unregister(bundle->bond, port);
2311 bundle_update(bundle);
2315 bundle_add_port(struct ofbundle *bundle, ofp_port_t ofp_port,
2316 struct lacp_slave_settings *lacp)
2318 struct ofport_dpif *port;
2320 port = get_ofp_port(bundle->ofproto, ofp_port);
2325 if (port->bundle != bundle) {
2326 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2328 bundle_remove(&port->up);
2331 port->bundle = bundle;
2332 list_push_back(&bundle->ports, &port->bundle_node);
2333 if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
2334 || !stp_forward_in_state(port->stp_state)) {
2335 bundle->floodable = false;
2339 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2340 lacp_slave_register(bundle->lacp, port, lacp);
2347 bundle_destroy(struct ofbundle *bundle)
2349 struct ofproto_dpif *ofproto;
2350 struct ofport_dpif *port, *next_port;
2356 ofproto = bundle->ofproto;
2357 mbridge_unregister_bundle(ofproto->mbridge, bundle->aux);
2359 ovs_rwlock_wrlock(&xlate_rwlock);
2360 xlate_bundle_remove(bundle);
2361 ovs_rwlock_unlock(&xlate_rwlock);
2363 LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
2364 bundle_del_port(port);
2367 bundle_flush_macs(bundle, true);
2368 hmap_remove(&ofproto->bundles, &bundle->hmap_node);
2370 free(bundle->trunks);
2371 lacp_unref(bundle->lacp);
2372 bond_unref(bundle->bond);
2377 bundle_set(struct ofproto *ofproto_, void *aux,
2378 const struct ofproto_bundle_settings *s)
2380 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2381 bool need_flush = false;
2382 struct ofport_dpif *port;
2383 struct ofbundle *bundle;
2384 unsigned long *trunks;
2390 bundle_destroy(bundle_lookup(ofproto, aux));
2394 ovs_assert(s->n_slaves == 1 || s->bond != NULL);
2395 ovs_assert((s->lacp != NULL) == (s->lacp_slaves != NULL));
2397 bundle = bundle_lookup(ofproto, aux);
2399 bundle = xmalloc(sizeof *bundle);
2401 bundle->ofproto = ofproto;
2402 hmap_insert(&ofproto->bundles, &bundle->hmap_node,
2403 hash_pointer(aux, 0));
2405 bundle->name = NULL;
2407 list_init(&bundle->ports);
2408 bundle->vlan_mode = PORT_VLAN_TRUNK;
2410 bundle->trunks = NULL;
2411 bundle->use_priority_tags = s->use_priority_tags;
2412 bundle->lacp = NULL;
2413 bundle->bond = NULL;
2415 bundle->floodable = true;
2416 mbridge_register_bundle(ofproto->mbridge, bundle);
2419 if (!bundle->name || strcmp(s->name, bundle->name)) {
2421 bundle->name = xstrdup(s->name);
2426 if (!bundle->lacp) {
2427 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2428 bundle->lacp = lacp_create();
2430 lacp_configure(bundle->lacp, s->lacp);
2432 lacp_unref(bundle->lacp);
2433 bundle->lacp = NULL;
2436 /* Update set of ports. */
2438 for (i = 0; i < s->n_slaves; i++) {
2439 if (!bundle_add_port(bundle, s->slaves[i],
2440 s->lacp ? &s->lacp_slaves[i] : NULL)) {
2444 if (!ok || list_size(&bundle->ports) != s->n_slaves) {
2445 struct ofport_dpif *next_port;
2447 LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
2448 for (i = 0; i < s->n_slaves; i++) {
2449 if (s->slaves[i] == port->up.ofp_port) {
2454 bundle_del_port(port);
2458 ovs_assert(list_size(&bundle->ports) <= s->n_slaves);
2460 if (list_is_empty(&bundle->ports)) {
2461 bundle_destroy(bundle);
2465 /* Set VLAN tagging mode */
2466 if (s->vlan_mode != bundle->vlan_mode
2467 || s->use_priority_tags != bundle->use_priority_tags) {
2468 bundle->vlan_mode = s->vlan_mode;
2469 bundle->use_priority_tags = s->use_priority_tags;
2474 vlan = (s->vlan_mode == PORT_VLAN_TRUNK ? -1
2475 : s->vlan >= 0 && s->vlan <= 4095 ? s->vlan
2477 if (vlan != bundle->vlan) {
2478 bundle->vlan = vlan;
2482 /* Get trunked VLANs. */
2483 switch (s->vlan_mode) {
2484 case PORT_VLAN_ACCESS:
2488 case PORT_VLAN_TRUNK:
2489 trunks = CONST_CAST(unsigned long *, s->trunks);
2492 case PORT_VLAN_NATIVE_UNTAGGED:
2493 case PORT_VLAN_NATIVE_TAGGED:
2494 if (vlan != 0 && (!s->trunks
2495 || !bitmap_is_set(s->trunks, vlan)
2496 || bitmap_is_set(s->trunks, 0))) {
2497 /* Force trunking the native VLAN and prohibit trunking VLAN 0. */
2499 trunks = bitmap_clone(s->trunks, 4096);
2501 trunks = bitmap_allocate1(4096);
2503 bitmap_set1(trunks, vlan);
2504 bitmap_set0(trunks, 0);
2506 trunks = CONST_CAST(unsigned long *, s->trunks);
2513 if (!vlan_bitmap_equal(trunks, bundle->trunks)) {
2514 free(bundle->trunks);
2515 if (trunks == s->trunks) {
2516 bundle->trunks = vlan_bitmap_clone(trunks);
2518 bundle->trunks = trunks;
2523 if (trunks != s->trunks) {
2528 if (!list_is_short(&bundle->ports)) {
2529 bundle->ofproto->has_bonded_bundles = true;
2531 if (bond_reconfigure(bundle->bond, s->bond)) {
2532 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2535 bundle->bond = bond_create(s->bond);
2536 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2539 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2540 bond_slave_register(bundle->bond, port, port->up.netdev);
2543 bond_unref(bundle->bond);
2544 bundle->bond = NULL;
2547 /* If we changed something that would affect MAC learning, un-learn
2548 * everything on this port and force flow revalidation. */
2550 bundle_flush_macs(bundle, false);
2557 bundle_remove(struct ofport *port_)
2559 struct ofport_dpif *port = ofport_dpif_cast(port_);
2560 struct ofbundle *bundle = port->bundle;
2563 bundle_del_port(port);
2564 if (list_is_empty(&bundle->ports)) {
2565 bundle_destroy(bundle);
2566 } else if (list_is_short(&bundle->ports)) {
2567 bond_unref(bundle->bond);
2568 bundle->bond = NULL;
2574 send_pdu_cb(void *port_, const void *pdu, size_t pdu_size)
2576 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
2577 struct ofport_dpif *port = port_;
2578 uint8_t ea[ETH_ADDR_LEN];
2581 error = netdev_get_etheraddr(port->up.netdev, ea);
2583 struct ofpbuf packet;
2586 ofpbuf_init(&packet, 0);
2587 packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP,
2589 memcpy(packet_pdu, pdu, pdu_size);
2591 ofproto_dpif_send_packet(port, &packet);
2592 ofpbuf_uninit(&packet);
2594 VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface "
2595 "%s (%s)", port->bundle->name,
2596 netdev_get_name(port->up.netdev), ovs_strerror(error));
2601 bundle_send_learning_packets(struct ofbundle *bundle)
2603 struct ofproto_dpif *ofproto = bundle->ofproto;
2604 struct ofpbuf *learning_packet;
2605 int error, n_packets, n_errors;
2606 struct mac_entry *e;
2607 struct list packets;
2609 list_init(&packets);
2610 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
2611 LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
2612 if (e->port.p != bundle) {
2615 learning_packet = bond_compose_learning_packet(bundle->bond,
2618 learning_packet->private_p = port_void;
2619 list_push_back(&packets, &learning_packet->list_node);
2622 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2624 error = n_packets = n_errors = 0;
2625 LIST_FOR_EACH (learning_packet, list_node, &packets) {
2628 ret = ofproto_dpif_send_packet(learning_packet->private_p, learning_packet);
2635 ofpbuf_list_delete(&packets);
2638 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2639 VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning "
2640 "packets, last error was: %s",
2641 bundle->name, n_errors, n_packets, ovs_strerror(error));
2643 VLOG_DBG("bond %s: sent %d gratuitous learning packets",
2644 bundle->name, n_packets);
2649 bundle_run(struct ofbundle *bundle)
2652 lacp_run(bundle->lacp, send_pdu_cb);
2655 struct ofport_dpif *port;
2657 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2658 bond_slave_set_may_enable(bundle->bond, port, port->may_enable);
2661 if (bond_run(bundle->bond, lacp_status(bundle->lacp))) {
2662 bundle->ofproto->backer->need_revalidate = REV_BOND;
2665 if (bond_should_send_learning_packets(bundle->bond)) {
2666 bundle_send_learning_packets(bundle);
2672 bundle_wait(struct ofbundle *bundle)
2675 lacp_wait(bundle->lacp);
2678 bond_wait(bundle->bond);
2685 mirror_set__(struct ofproto *ofproto_, void *aux,
2686 const struct ofproto_mirror_settings *s)
2688 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2689 struct ofbundle **srcs, **dsts;
2694 mirror_destroy(ofproto->mbridge, aux);
2698 srcs = xmalloc(s->n_srcs * sizeof *srcs);
2699 dsts = xmalloc(s->n_dsts * sizeof *dsts);
2701 for (i = 0; i < s->n_srcs; i++) {
2702 srcs[i] = bundle_lookup(ofproto, s->srcs[i]);
2705 for (i = 0; i < s->n_dsts; i++) {
2706 dsts[i] = bundle_lookup(ofproto, s->dsts[i]);
2709 error = mirror_set(ofproto->mbridge, aux, s->name, srcs, s->n_srcs, dsts,
2710 s->n_dsts, s->src_vlans,
2711 bundle_lookup(ofproto, s->out_bundle), s->out_vlan);
2718 mirror_get_stats__(struct ofproto *ofproto, void *aux,
2719 uint64_t *packets, uint64_t *bytes)
2722 return mirror_get_stats(ofproto_dpif_cast(ofproto)->mbridge, aux, packets,
2727 set_flood_vlans(struct ofproto *ofproto_, unsigned long *flood_vlans)
2729 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2730 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2731 if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) {
2732 mac_learning_flush(ofproto->ml);
2734 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2739 is_mirror_output_bundle(const struct ofproto *ofproto_, void *aux)
2741 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2742 struct ofbundle *bundle = bundle_lookup(ofproto, aux);
2743 return bundle && mirror_bundle_out(ofproto->mbridge, bundle) != 0;
2747 forward_bpdu_changed(struct ofproto *ofproto_)
2749 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2750 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2754 set_mac_table_config(struct ofproto *ofproto_, unsigned int idle_time,
2757 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2758 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2759 mac_learning_set_idle_time(ofproto->ml, idle_time);
2760 mac_learning_set_max_entries(ofproto->ml, max_entries);
2761 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2766 static struct ofport_dpif *
2767 get_ofp_port(const struct ofproto_dpif *ofproto, ofp_port_t ofp_port)
2769 struct ofport *ofport = ofproto_get_port(&ofproto->up, ofp_port);
2770 return ofport ? ofport_dpif_cast(ofport) : NULL;
2773 static struct ofport_dpif *
2774 get_odp_port(const struct ofproto_dpif *ofproto, odp_port_t odp_port)
2776 struct ofport_dpif *port = odp_port_to_ofport(ofproto->backer, odp_port);
2777 return port && &ofproto->up == port->up.ofproto ? port : NULL;
2781 ofproto_port_from_dpif_port(struct ofproto_dpif *ofproto,
2782 struct ofproto_port *ofproto_port,
2783 struct dpif_port *dpif_port)
2785 ofproto_port->name = dpif_port->name;
2786 ofproto_port->type = dpif_port->type;
2787 ofproto_port->ofp_port = odp_port_to_ofp_port(ofproto, dpif_port->port_no);
2791 ofport_update_peer(struct ofport_dpif *ofport)
2793 const struct ofproto_dpif *ofproto;
2794 struct dpif_backer *backer;
2797 if (!netdev_vport_is_patch(ofport->up.netdev)) {
2801 backer = ofproto_dpif_cast(ofport->up.ofproto)->backer;
2802 backer->need_revalidate = REV_RECONFIGURE;
2805 ofport->peer->peer = NULL;
2806 ofport->peer = NULL;
2809 peer_name = netdev_vport_patch_peer(ofport->up.netdev);
2814 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
2815 struct ofport *peer_ofport;
2816 struct ofport_dpif *peer;
2819 if (ofproto->backer != backer) {
2823 peer_ofport = shash_find_data(&ofproto->up.port_by_name, peer_name);
2828 peer = ofport_dpif_cast(peer_ofport);
2829 peer_peer = netdev_vport_patch_peer(peer->up.netdev);
2830 if (peer_peer && !strcmp(netdev_get_name(ofport->up.netdev),
2832 ofport->peer = peer;
2833 ofport->peer->peer = ofport;
2843 port_run(struct ofport_dpif *ofport)
2845 long long int carrier_seq = netdev_get_carrier_resets(ofport->up.netdev);
2846 bool carrier_changed = carrier_seq != ofport->carrier_seq;
2847 bool enable = netdev_get_carrier(ofport->up.netdev);
2848 bool cfm_enable = false;
2849 bool bfd_enable = false;
2851 ofport->carrier_seq = carrier_seq;
2854 int cfm_opup = cfm_get_opup(ofport->cfm);
2856 cfm_enable = !cfm_get_fault(ofport->cfm);
2858 if (cfm_opup >= 0) {
2859 cfm_enable = cfm_enable && cfm_opup;
2864 bfd_enable = bfd_forwarding(ofport->bfd);
2867 if (ofport->bfd || ofport->cfm) {
2868 enable = enable && (cfm_enable || bfd_enable);
2871 if (ofport->bundle) {
2872 enable = enable && lacp_slave_may_enable(ofport->bundle->lacp, ofport);
2873 if (carrier_changed) {
2874 lacp_slave_carrier_changed(ofport->bundle->lacp, ofport);
2878 if (ofport->may_enable != enable) {
2879 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2880 ofproto->backer->need_revalidate = REV_PORT_TOGGLED;
2883 ofport->may_enable = enable;
2887 port_query_by_name(const struct ofproto *ofproto_, const char *devname,
2888 struct ofproto_port *ofproto_port)
2890 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2891 struct dpif_port dpif_port;
2894 if (sset_contains(&ofproto->ghost_ports, devname)) {
2895 const char *type = netdev_get_type_from_name(devname);
2897 /* We may be called before ofproto->up.port_by_name is populated with
2898 * the appropriate ofport. For this reason, we must get the name and
2899 * type from the netdev layer directly. */
2901 const struct ofport *ofport;
2903 ofport = shash_find_data(&ofproto->up.port_by_name, devname);
2904 ofproto_port->ofp_port = ofport ? ofport->ofp_port : OFPP_NONE;
2905 ofproto_port->name = xstrdup(devname);
2906 ofproto_port->type = xstrdup(type);
2912 if (!sset_contains(&ofproto->ports, devname)) {
2915 error = dpif_port_query_by_name(ofproto->backer->dpif,
2916 devname, &dpif_port);
2918 ofproto_port_from_dpif_port(ofproto, ofproto_port, &dpif_port);
2924 port_add(struct ofproto *ofproto_, struct netdev *netdev)
2926 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2927 const char *devname = netdev_get_name(netdev);
2928 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
2929 const char *dp_port_name;
2931 if (netdev_vport_is_patch(netdev)) {
2932 sset_add(&ofproto->ghost_ports, netdev_get_name(netdev));
2936 dp_port_name = netdev_vport_get_dpif_port(netdev, namebuf, sizeof namebuf);
2937 if (!dpif_port_exists(ofproto->backer->dpif, dp_port_name)) {
2938 odp_port_t port_no = ODPP_NONE;
2941 error = dpif_port_add(ofproto->backer->dpif, netdev, &port_no);
2945 if (netdev_get_tunnel_config(netdev)) {
2946 simap_put(&ofproto->backer->tnl_backers,
2947 dp_port_name, odp_to_u32(port_no));
2951 if (netdev_get_tunnel_config(netdev)) {
2952 sset_add(&ofproto->ghost_ports, devname);
2954 sset_add(&ofproto->ports, devname);
2960 port_del(struct ofproto *ofproto_, ofp_port_t ofp_port)
2962 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2963 struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port);
2970 sset_find_and_delete(&ofproto->ghost_ports,
2971 netdev_get_name(ofport->up.netdev));
2972 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2973 if (!ofport->is_tunnel && !netdev_vport_is_patch(ofport->up.netdev)) {
2974 error = dpif_port_del(ofproto->backer->dpif, ofport->odp_port);
2976 /* The caller is going to close ofport->up.netdev. If this is a
2977 * bonded port, then the bond is using that netdev, so remove it
2978 * from the bond. The client will need to reconfigure everything
2979 * after deleting ports, so then the slave will get re-added. */
2980 bundle_remove(&ofport->up);
2987 port_get_stats(const struct ofport *ofport_, struct netdev_stats *stats)
2989 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2994 error = netdev_get_stats(ofport->up.netdev, stats);
2996 if (!error && ofport_->ofp_port == OFPP_LOCAL) {
2997 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2999 ovs_mutex_lock(&ofproto->stats_mutex);
3000 /* ofproto->stats.tx_packets represents packets that we created
3001 * internally and sent to some port (e.g. packets sent with
3002 * ofproto_dpif_send_packet()). Account for them as if they had
3003 * come from OFPP_LOCAL and got forwarded. */
3005 if (stats->rx_packets != UINT64_MAX) {
3006 stats->rx_packets += ofproto->stats.tx_packets;
3009 if (stats->rx_bytes != UINT64_MAX) {
3010 stats->rx_bytes += ofproto->stats.tx_bytes;
3013 /* ofproto->stats.rx_packets represents packets that were received on
3014 * some port and we processed internally and dropped (e.g. STP).
3015 * Account for them as if they had been forwarded to OFPP_LOCAL. */
3017 if (stats->tx_packets != UINT64_MAX) {
3018 stats->tx_packets += ofproto->stats.rx_packets;
3021 if (stats->tx_bytes != UINT64_MAX) {
3022 stats->tx_bytes += ofproto->stats.rx_bytes;
3024 ovs_mutex_unlock(&ofproto->stats_mutex);
3030 struct port_dump_state {
3035 struct ofproto_port port;
3040 port_dump_start(const struct ofproto *ofproto_ OVS_UNUSED, void **statep)
3042 *statep = xzalloc(sizeof(struct port_dump_state));
3047 port_dump_next(const struct ofproto *ofproto_, void *state_,
3048 struct ofproto_port *port)
3050 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3051 struct port_dump_state *state = state_;
3052 const struct sset *sset;
3053 struct sset_node *node;
3055 if (state->has_port) {
3056 ofproto_port_destroy(&state->port);
3057 state->has_port = false;
3059 sset = state->ghost ? &ofproto->ghost_ports : &ofproto->ports;
3060 while ((node = sset_at_position(sset, &state->bucket, &state->offset))) {
3063 error = port_query_by_name(ofproto_, node->name, &state->port);
3065 *port = state->port;
3066 state->has_port = true;
3068 } else if (error != ENODEV) {
3073 if (!state->ghost) {
3074 state->ghost = true;
3077 return port_dump_next(ofproto_, state_, port);
3084 port_dump_done(const struct ofproto *ofproto_ OVS_UNUSED, void *state_)
3086 struct port_dump_state *state = state_;
3088 if (state->has_port) {
3089 ofproto_port_destroy(&state->port);
3096 port_poll(const struct ofproto *ofproto_, char **devnamep)
3098 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3100 if (ofproto->port_poll_errno) {
3101 int error = ofproto->port_poll_errno;
3102 ofproto->port_poll_errno = 0;
3106 if (sset_is_empty(&ofproto->port_poll_set)) {
3110 *devnamep = sset_pop(&ofproto->port_poll_set);
3115 port_poll_wait(const struct ofproto *ofproto_)
3117 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3118 dpif_port_poll_wait(ofproto->backer->dpif);
3122 port_is_lacp_current(const struct ofport *ofport_)
3124 const struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
3125 return (ofport->bundle && ofport->bundle->lacp
3126 ? lacp_slave_is_current(ofport->bundle->lacp, ofport)
3130 /* Upcall handling. */
3132 struct flow_miss_op {
3133 struct dpif_op dpif_op;
3135 uint64_t slow_stub[128 / 8]; /* Buffer for compose_slow_path() */
3136 struct xlate_out xout;
3137 bool xout_garbage; /* 'xout' needs to be uninitialized? */
3139 struct ofpbuf mask; /* Flow mask for "put" ops. */
3140 struct odputil_keybuf maskbuf;
3142 /* If this is a "put" op, then a pointer to the subfacet that should
3143 * be marked as uninstalled if the operation fails. */
3144 struct subfacet *subfacet;
3147 /* Figures out whether a flow that missed in 'ofproto', whose details are in
3148 * 'miss' masked by 'wc', is likely to be worth tracking in detail in userspace
3149 * and (usually) installing a datapath flow. The answer is usually "yes" (a
3150 * return value of true). However, for short flows the cost of bookkeeping is
3151 * much higher than the benefits, so when the datapath holds a large number of
3152 * flows we impose some heuristics to decide which flows are likely to be worth
3155 flow_miss_should_make_facet(struct flow_miss *miss)
3157 struct dpif_backer *backer = miss->ofproto->backer;
3160 switch (flow_miss_model) {
3161 case OFPROTO_HANDLE_MISS_AUTO:
3163 case OFPROTO_HANDLE_MISS_WITH_FACETS:
3165 case OFPROTO_HANDLE_MISS_WITHOUT_FACETS:
3169 if (!backer->governor) {
3172 n_subfacets = hmap_count(&backer->subfacets);
3173 if (n_subfacets * 2 <= flow_eviction_threshold) {
3177 backer->governor = governor_create();
3180 hash = flow_hash_in_wildcards(&miss->flow, &miss->xout.wc, 0);
3181 return governor_should_install_flow(backer->governor, hash,
3182 miss->stats.n_packets);
3185 /* Handles 'miss', which matches 'facet'. May add any required datapath
3186 * operations to 'ops', incrementing '*n_ops' for each new op.
3188 * All of the packets in 'miss' are considered to have arrived at time
3189 * 'miss->stats.used'. This is really important only for new facets: if we
3190 * just called time_msec() here, then the new subfacet or its packets could
3191 * look (occasionally) as though it was used some time after the facet was
3192 * used. That can make a one-packet flow look like it has a nonzero duration,
3193 * which looks odd in e.g. NetFlow statistics. */
3195 handle_flow_miss_with_facet(struct flow_miss *miss, struct facet *facet,
3196 struct flow_miss_op *ops, size_t *n_ops)
3198 enum subfacet_path want_path;
3199 struct subfacet *subfacet;
3201 facet->packet_count += miss->stats.n_packets;
3202 facet->prev_packet_count += miss->stats.n_packets;
3203 facet->byte_count += miss->stats.n_bytes;
3204 facet->prev_byte_count += miss->stats.n_bytes;
3206 want_path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH;
3208 /* Don't install the flow if it's the result of the "userspace"
3209 * action for an already installed facet. This can occur when a
3210 * datapath flow with wildcards has a "userspace" action and flows
3211 * sent to userspace result in a different subfacet, which will then
3212 * be rejected as overlapping by the datapath. */
3213 if (miss->upcall_type == DPIF_UC_ACTION
3214 && !list_is_empty(&facet->subfacets)) {
3218 subfacet = subfacet_create(facet, miss);
3219 if (subfacet->path != want_path) {
3220 struct flow_miss_op *op = &ops[(*n_ops)++];
3221 struct dpif_flow_put *put = &op->dpif_op.u.flow_put;
3223 subfacet->path = want_path;
3225 ofpbuf_use_stack(&op->mask, &op->maskbuf, sizeof op->maskbuf);
3226 if (enable_megaflows) {
3227 odp_flow_key_from_mask(&op->mask, &facet->xout.wc.masks,
3228 &miss->flow, UINT32_MAX);
3231 op->xout_garbage = false;
3232 op->dpif_op.type = DPIF_OP_FLOW_PUT;
3233 op->subfacet = subfacet;
3234 put->flags = DPIF_FP_CREATE;
3235 put->key = miss->key;
3236 put->key_len = miss->key_len;
3237 put->mask = op->mask.data;
3238 put->mask_len = op->mask.size;
3240 if (want_path == SF_FAST_PATH) {
3241 put->actions = facet->xout.odp_actions.data;
3242 put->actions_len = facet->xout.odp_actions.size;
3244 compose_slow_path(facet->ofproto, &miss->flow, facet->xout.slow,
3245 op->slow_stub, sizeof op->slow_stub,
3246 &put->actions, &put->actions_len);
3252 /* Handles flow miss 'miss'. May add any required datapath operations
3253 * to 'ops', incrementing '*n_ops' for each new op. */
3255 handle_flow_miss(struct flow_miss *miss, struct flow_miss_op *ops,
3258 struct facet *facet;
3260 miss->ofproto->n_missed += miss->stats.n_packets;
3262 facet = facet_lookup_valid(miss->ofproto, &miss->flow);
3264 /* There does not exist a bijection between 'struct flow' and datapath
3265 * flow keys with fitness ODP_FIT_TO_LITTLE. This breaks a fundamental
3266 * assumption used throughout the facet and subfacet handling code.
3267 * Since we have to handle these misses in userspace anyway, we simply
3268 * skip facet creation, avoiding the problem altogether. */
3269 if (miss->key_fitness == ODP_FIT_TOO_LITTLE
3270 || !flow_miss_should_make_facet(miss)) {
3274 facet = facet_create(miss);
3276 handle_flow_miss_with_facet(miss, facet, ops, n_ops);
3279 static struct drop_key *
3280 drop_key_lookup(const struct dpif_backer *backer, const struct nlattr *key,
3283 struct drop_key *drop_key;
3285 HMAP_FOR_EACH_WITH_HASH (drop_key, hmap_node, hash_bytes(key, key_len, 0),
3286 &backer->drop_keys) {
3287 if (drop_key->key_len == key_len
3288 && !memcmp(drop_key->key, key, key_len)) {
3296 drop_key_clear(struct dpif_backer *backer)
3298 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15);
3299 struct drop_key *drop_key, *next;
3301 HMAP_FOR_EACH_SAFE (drop_key, next, hmap_node, &backer->drop_keys) {
3304 error = dpif_flow_del(backer->dpif, drop_key->key, drop_key->key_len,
3306 if (error && !VLOG_DROP_WARN(&rl)) {
3307 struct ds ds = DS_EMPTY_INITIALIZER;
3308 odp_flow_key_format(drop_key->key, drop_key->key_len, &ds);
3309 VLOG_WARN("Failed to delete drop key (%s) (%s)",
3310 ovs_strerror(error), ds_cstr(&ds));
3314 hmap_remove(&backer->drop_keys, &drop_key->hmap_node);
3315 drop_key_destroy(drop_key);
3318 udpif_drop_key_clear(backer->udpif);
3322 handle_flow_misses(struct dpif_backer *backer, struct flow_miss_batch *fmb)
3324 struct flow_miss_op flow_miss_ops[FLOW_MISS_MAX_BATCH];
3325 struct dpif_op *dpif_ops[FLOW_MISS_MAX_BATCH];
3326 struct flow_miss *miss;
3329 /* Process each element in the to-do list, constructing the set of
3330 * operations to batch. */
3332 HMAP_FOR_EACH (miss, hmap_node, &fmb->misses) {
3333 handle_flow_miss(miss, flow_miss_ops, &n_ops);
3335 ovs_assert(n_ops <= ARRAY_SIZE(flow_miss_ops));
3337 /* Execute batch. */
3338 for (i = 0; i < n_ops; i++) {
3339 dpif_ops[i] = &flow_miss_ops[i].dpif_op;
3341 dpif_operate(backer->dpif, dpif_ops, n_ops);
3343 for (i = 0; i < n_ops; i++) {
3344 if (dpif_ops[i]->error != 0
3345 && flow_miss_ops[i].dpif_op.type == DPIF_OP_FLOW_PUT
3346 && flow_miss_ops[i].subfacet) {
3347 struct subfacet *subfacet = flow_miss_ops[i].subfacet;
3349 COVERAGE_INC(subfacet_install_fail);
3351 /* Zero-out subfacet counters when installation failed, but
3352 * datapath reported hits. This should not happen and
3353 * indicates a bug, since if the datapath flow exists, we
3354 * should not be attempting to create a new subfacet. A
3355 * buggy datapath could trigger this, so just zero out the
3356 * counters and log an error. */
3357 if (subfacet->dp_packet_count || subfacet->dp_byte_count) {
3358 VLOG_ERR_RL(&rl, "failed to install subfacet for which "
3359 "datapath reported hits");
3360 subfacet->dp_packet_count = subfacet->dp_byte_count = 0;
3363 subfacet->path = SF_NOT_INSTALLED;
3369 handle_upcalls(struct dpif_backer *backer)
3371 struct flow_miss_batch *fmb;
3374 for (n_processed = 0; n_processed < FLOW_MISS_MAX_BATCH; n_processed++) {
3375 struct drop_key *drop_key = drop_key_next(backer->udpif);
3380 if (!drop_key_lookup(backer, drop_key->key, drop_key->key_len)) {
3381 hmap_insert(&backer->drop_keys, &drop_key->hmap_node,
3382 hash_bytes(drop_key->key, drop_key->key_len, 0));
3383 dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY,
3384 drop_key->key, drop_key->key_len,
3385 NULL, 0, NULL, 0, NULL);
3387 drop_key_destroy(drop_key);
3391 fmb = flow_miss_batch_next(backer->udpif);
3393 handle_flow_misses(backer, fmb);
3394 flow_miss_batch_destroy(fmb);
3398 /* Flow expiration. */
3400 static int subfacet_max_idle(const struct dpif_backer *);
3401 static void update_stats(struct dpif_backer *);
3402 static void rule_expire(struct rule_dpif *) OVS_REQUIRES(ofproto_mutex);
3403 static void expire_subfacets(struct dpif_backer *, int dp_max_idle);
3405 /* This function is called periodically by run(). Its job is to collect
3406 * updates for the flows that have been installed into the datapath, most
3407 * importantly when they last were used, and then use that information to
3408 * expire flows that have not been used recently.
3410 * Returns the number of milliseconds after which it should be called again. */
3412 expire(struct dpif_backer *backer)
3414 struct ofproto_dpif *ofproto;
3418 /* Periodically clear out the drop keys in an effort to keep them
3419 * relatively few. */
3420 drop_key_clear(backer);
3422 /* Update stats for each flow in the backer. */
3423 update_stats(backer);
3425 n_subfacets = hmap_count(&backer->subfacets);
3427 struct subfacet *subfacet;
3428 long long int total, now;
3432 HMAP_FOR_EACH (subfacet, hmap_node, &backer->subfacets) {
3433 total += now - subfacet->created;
3435 backer->avg_subfacet_life += total / n_subfacets;
3437 backer->avg_subfacet_life /= 2;
3439 backer->avg_n_subfacet += n_subfacets;
3440 backer->avg_n_subfacet /= 2;
3442 backer->max_n_subfacet = MAX(backer->max_n_subfacet, n_subfacets);
3444 max_idle = subfacet_max_idle(backer);
3445 expire_subfacets(backer, max_idle);
3447 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
3448 struct rule *rule, *next_rule;
3450 if (ofproto->backer != backer) {
3454 /* Expire OpenFlow flows whose idle_timeout or hard_timeout
3456 ovs_mutex_lock(&ofproto_mutex);
3457 LIST_FOR_EACH_SAFE (rule, next_rule, expirable,
3458 &ofproto->up.expirable) {
3459 rule_expire(rule_dpif_cast(rule));
3461 ovs_mutex_unlock(&ofproto_mutex);
3463 /* All outstanding data in existing flows has been accounted, so it's a
3464 * good time to do bond rebalancing. */
3465 if (ofproto->has_bonded_bundles) {
3466 struct ofbundle *bundle;
3468 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
3470 bond_rebalance(bundle->bond);
3476 return MIN(max_idle, 1000);
3479 /* Updates flow table statistics given that the datapath just reported 'stats'
3480 * as 'subfacet''s statistics. */
3482 update_subfacet_stats(struct subfacet *subfacet,
3483 const struct dpif_flow_stats *stats)
3485 struct facet *facet = subfacet->facet;
3486 struct dpif_flow_stats diff;
3488 diff.tcp_flags = stats->tcp_flags;
3489 diff.used = stats->used;
3491 if (stats->n_packets >= subfacet->dp_packet_count) {
3492 diff.n_packets = stats->n_packets - subfacet->dp_packet_count;
3494 VLOG_WARN_RL(&rl, "unexpected packet count from the datapath");
3498 if (stats->n_bytes >= subfacet->dp_byte_count) {
3499 diff.n_bytes = stats->n_bytes - subfacet->dp_byte_count;
3501 VLOG_WARN_RL(&rl, "unexpected byte count from datapath");
3505 facet->ofproto->n_hit += diff.n_packets;
3506 subfacet->dp_packet_count = stats->n_packets;
3507 subfacet->dp_byte_count = stats->n_bytes;
3508 subfacet_update_stats(subfacet, &diff);
3510 if (facet->accounted_bytes < facet->byte_count) {
3512 facet_account(facet);
3513 facet->accounted_bytes = facet->byte_count;
3517 /* 'key' with length 'key_len' bytes is a flow in 'dpif' that we know nothing
3518 * about, or a flow that shouldn't be installed but was anyway. Delete it. */
3520 delete_unexpected_flow(struct dpif_backer *backer,
3521 const struct nlattr *key, size_t key_len)
3523 if (!VLOG_DROP_WARN(&rl)) {
3527 odp_flow_key_format(key, key_len, &s);
3528 VLOG_WARN("unexpected flow: %s", ds_cstr(&s));
3532 COVERAGE_INC(facet_unexpected);
3533 dpif_flow_del(backer->dpif, key, key_len, NULL);
3536 /* Update 'packet_count', 'byte_count', and 'used' members of installed facets.
3538 * This function also pushes statistics updates to rules which each facet
3539 * resubmits into. Generally these statistics will be accurate. However, if a
3540 * facet changes the rule it resubmits into at some time in between
3541 * update_stats() runs, it is possible that statistics accrued to the
3542 * old rule will be incorrectly attributed to the new rule. This could be
3543 * avoided by calling update_stats() whenever rules are created or
3544 * deleted. However, the performance impact of making so many calls to the
3545 * datapath do not justify the benefit of having perfectly accurate statistics.
3547 * In addition, this function maintains per ofproto flow hit counts. The patch
3548 * port is not treated specially. e.g. A packet ingress from br0 patched into
3549 * br1 will increase the hit count of br0 by 1, however, does not affect
3550 * the hit or miss counts of br1.
3553 update_stats(struct dpif_backer *backer)
3555 const struct dpif_flow_stats *stats;
3556 struct dpif_flow_dump dump;
3557 const struct nlattr *key, *mask;
3558 size_t key_len, mask_len;
3560 dpif_flow_dump_start(&dump, backer->dpif);
3561 while (dpif_flow_dump_next(&dump, &key, &key_len,
3562 &mask, &mask_len, NULL, NULL, &stats)) {
3563 struct subfacet *subfacet;
3566 key_hash = odp_flow_key_hash(key, key_len);
3567 subfacet = subfacet_find(backer, key, key_len, key_hash);
3568 switch (subfacet ? subfacet->path : SF_NOT_INSTALLED) {
3570 update_subfacet_stats(subfacet, stats);
3574 /* Stats are updated per-packet. */
3577 case SF_NOT_INSTALLED:
3579 delete_unexpected_flow(backer, key, key_len);
3584 dpif_flow_dump_done(&dump);
3587 /* Calculates and returns the number of milliseconds of idle time after which
3588 * subfacets should expire from the datapath. When a subfacet expires, we fold
3589 * its statistics into its facet, and when a facet's last subfacet expires, we
3590 * fold its statistic into its rule. */
3592 subfacet_max_idle(const struct dpif_backer *backer)
3595 * Idle time histogram.
3597 * Most of the time a switch has a relatively small number of subfacets.
3598 * When this is the case we might as well keep statistics for all of them
3599 * in userspace and to cache them in the kernel datapath for performance as
3602 * As the number of subfacets increases, the memory required to maintain
3603 * statistics about them in userspace and in the kernel becomes
3604 * significant. However, with a large number of subfacets it is likely
3605 * that only a few of them are "heavy hitters" that consume a large amount
3606 * of bandwidth. At this point, only heavy hitters are worth caching in
3607 * the kernel and maintaining in userspaces; other subfacets we can
3610 * The technique used to compute the idle time is to build a histogram with
3611 * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each subfacet
3612 * that is installed in the kernel gets dropped in the appropriate bucket.
3613 * After the histogram has been built, we compute the cutoff so that only
3614 * the most-recently-used 1% of subfacets (but at least
3615 * flow_eviction_threshold flows) are kept cached. At least
3616 * the most-recently-used bucket of subfacets is kept, so actually an
3617 * arbitrary number of subfacets can be kept in any given expiration run
3618 * (though the next run will delete most of those unless they receive
3621 * This requires a second pass through the subfacets, in addition to the
3622 * pass made by update_stats(), because the former function never looks at
3623 * uninstallable subfacets.
3625 enum { BUCKET_WIDTH = 100 };
3626 enum { N_BUCKETS = 5000 / BUCKET_WIDTH };
3627 int buckets[N_BUCKETS] = { 0 };
3628 int total, subtotal, bucket;
3629 struct subfacet *subfacet;
3633 total = hmap_count(&backer->subfacets);
3634 if (total <= flow_eviction_threshold) {
3635 return N_BUCKETS * BUCKET_WIDTH;
3638 /* Build histogram. */
3640 HMAP_FOR_EACH (subfacet, hmap_node, &backer->subfacets) {
3641 long long int idle = now - subfacet->used;
3642 int bucket = (idle <= 0 ? 0
3643 : idle >= BUCKET_WIDTH * N_BUCKETS ? N_BUCKETS - 1
3644 : (unsigned int) idle / BUCKET_WIDTH);
3648 /* Find the first bucket whose flows should be expired. */
3649 subtotal = bucket = 0;
3651 subtotal += buckets[bucket++];
3652 } while (bucket < N_BUCKETS &&
3653 subtotal < MAX(flow_eviction_threshold, total / 100));
3655 if (VLOG_IS_DBG_ENABLED()) {
3659 ds_put_cstr(&s, "keep");
3660 for (i = 0; i < N_BUCKETS; i++) {
3662 ds_put_cstr(&s, ", drop");
3665 ds_put_format(&s, " %d:%d", i * BUCKET_WIDTH, buckets[i]);
3668 VLOG_INFO("%s (msec:count)", ds_cstr(&s));
3672 return bucket * BUCKET_WIDTH;
3676 expire_subfacets(struct dpif_backer *backer, int dp_max_idle)
3678 /* Cutoff time for most flows. */
3679 long long int normal_cutoff = time_msec() - dp_max_idle;
3681 /* We really want to keep flows for special protocols around, so use a more
3682 * conservative cutoff. */
3683 long long int special_cutoff = time_msec() - 10000;
3685 struct subfacet *subfacet, *next_subfacet;
3686 struct subfacet *batch[SUBFACET_DESTROY_MAX_BATCH];
3690 HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node,
3691 &backer->subfacets) {
3692 long long int cutoff;
3694 cutoff = (subfacet->facet->xout.slow & (SLOW_CFM | SLOW_BFD | SLOW_LACP
3698 if (subfacet->used < cutoff) {
3699 if (subfacet->path != SF_NOT_INSTALLED) {
3700 batch[n_batch++] = subfacet;
3701 if (n_batch >= SUBFACET_DESTROY_MAX_BATCH) {
3702 subfacet_destroy_batch(backer, batch, n_batch);
3706 subfacet_destroy(subfacet);
3712 subfacet_destroy_batch(backer, batch, n_batch);
3716 /* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules,
3717 * then delete it entirely. */
3719 rule_expire(struct rule_dpif *rule)
3720 OVS_REQUIRES(ofproto_mutex)
3722 uint16_t idle_timeout, hard_timeout;
3723 long long int now = time_msec();
3726 ovs_assert(!rule->up.pending);
3728 /* Has 'rule' expired? */
3729 ovs_mutex_lock(&rule->up.mutex);
3730 hard_timeout = rule->up.hard_timeout;
3731 idle_timeout = rule->up.idle_timeout;
3732 if (hard_timeout && now > rule->up.modified + hard_timeout * 1000) {
3733 reason = OFPRR_HARD_TIMEOUT;
3734 } else if (idle_timeout && now > rule->up.used + idle_timeout * 1000) {
3735 reason = OFPRR_IDLE_TIMEOUT;
3739 ovs_mutex_unlock(&rule->up.mutex);
3742 COVERAGE_INC(ofproto_dpif_expired);
3743 ofproto_rule_expire(&rule->up, reason);
3749 /* Creates and returns a new facet based on 'miss'.
3751 * The caller must already have determined that no facet with an identical
3752 * 'miss->flow' exists in 'miss->ofproto'.
3754 * 'rule' and 'xout' must have been created based on 'miss'.
3756 * 'facet'' statistics are initialized based on 'stats'.
3758 * The facet will initially have no subfacets. The caller should create (at
3759 * least) one subfacet with subfacet_create(). */
3760 static struct facet *
3761 facet_create(const struct flow_miss *miss)
3763 struct ofproto_dpif *ofproto = miss->ofproto;
3764 struct facet *facet;
3767 COVERAGE_INC(facet_create);
3768 facet = xzalloc(sizeof *facet);
3769 facet->ofproto = miss->ofproto;
3770 facet->used = miss->stats.used;
3771 facet->flow = miss->flow;
3772 facet->learn_rl = time_msec() + 500;
3774 list_init(&facet->subfacets);
3775 netflow_flow_init(&facet->nf_flow);
3776 netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, facet->used);
3778 xlate_out_copy(&facet->xout, &miss->xout);
3780 match_init(&match, &facet->flow, &facet->xout.wc);
3781 cls_rule_init(&facet->cr, &match, OFP_DEFAULT_PRIORITY);
3782 ovs_rwlock_wrlock(&ofproto->facets.rwlock);
3783 classifier_insert(&ofproto->facets, &facet->cr);
3784 ovs_rwlock_unlock(&ofproto->facets.rwlock);
3786 facet->nf_flow.output_iface = facet->xout.nf_output_iface;
3791 facet_free(struct facet *facet)
3794 xlate_out_uninit(&facet->xout);
3799 /* Executes, within 'ofproto', the actions in 'rule' or 'ofpacts' on 'packet'.
3800 * 'flow' must reflect the data in 'packet'. */
3802 ofproto_dpif_execute_actions(struct ofproto_dpif *ofproto,
3803 const struct flow *flow,
3804 struct rule_dpif *rule,
3805 const struct ofpact *ofpacts, size_t ofpacts_len,
3806 struct ofpbuf *packet)
3808 struct odputil_keybuf keybuf;
3809 struct dpif_flow_stats stats;
3810 struct xlate_out xout;
3811 struct xlate_in xin;
3816 ovs_assert((rule != NULL) != (ofpacts != NULL));
3818 dpif_flow_stats_extract(flow, packet, time_msec(), &stats);
3820 rule_dpif_credit_stats(rule, &stats);
3823 xlate_in_init(&xin, ofproto, flow, rule, stats.tcp_flags, packet);
3824 xin.ofpacts = ofpacts;
3825 xin.ofpacts_len = ofpacts_len;
3826 xin.resubmit_stats = &stats;
3827 xlate_actions(&xin, &xout);
3829 ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
3830 in_port = flow->in_port.ofp_port;
3831 if (in_port == OFPP_NONE) {
3832 in_port = OFPP_LOCAL;
3834 odp_flow_key_from_flow(&key, flow, ofp_port_to_odp_port(ofproto, in_port));
3836 error = dpif_execute(ofproto->backer->dpif, key.data, key.size,
3837 xout.odp_actions.data, xout.odp_actions.size, packet,
3838 (xout.slow & SLOW_ACTION) != 0);
3839 xlate_out_uninit(&xout);
3844 /* Remove 'facet' from its ofproto and free up the associated memory:
3846 * - If 'facet' was installed in the datapath, uninstalls it and updates its
3847 * rule's statistics, via subfacet_uninstall().
3849 * - Removes 'facet' from its rule and from ofproto->facets.
3852 facet_remove(struct facet *facet)
3854 struct subfacet *subfacet, *next_subfacet;
3856 COVERAGE_INC(facet_remove);
3857 ovs_assert(!list_is_empty(&facet->subfacets));
3859 /* First uninstall all of the subfacets to get final statistics. */
3860 LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
3861 subfacet_uninstall(subfacet);
3864 /* Flush the final stats to the rule.
3866 * This might require us to have at least one subfacet around so that we
3867 * can use its actions for accounting in facet_account(), which is why we
3868 * have uninstalled but not yet destroyed the subfacets. */
3869 facet_flush_stats(facet);
3871 /* Now we're really all done so destroy everything. */
3872 LIST_FOR_EACH_SAFE (subfacet, next_subfacet, list_node,
3873 &facet->subfacets) {
3874 subfacet_destroy__(subfacet);
3876 ovs_rwlock_wrlock(&facet->ofproto->facets.rwlock);
3877 classifier_remove(&facet->ofproto->facets, &facet->cr);
3878 ovs_rwlock_unlock(&facet->ofproto->facets.rwlock);
3879 cls_rule_destroy(&facet->cr);
3883 /* Feed information from 'facet' back into the learning table to keep it in
3884 * sync with what is actually flowing through the datapath. */
3886 facet_learn(struct facet *facet)
3888 long long int now = time_msec();
3890 if (!facet->xout.has_fin_timeout && now < facet->learn_rl) {
3894 facet->learn_rl = now + 500;
3896 if (!facet->xout.has_learn
3897 && !facet->xout.has_normal
3898 && (!facet->xout.has_fin_timeout
3899 || !(facet->tcp_flags & (TCP_FIN | TCP_RST)))) {
3903 facet_push_stats(facet, true);
3907 facet_account(struct facet *facet)
3909 const struct nlattr *a;
3914 if (!facet->xout.has_normal || !facet->ofproto->has_bonded_bundles) {
3917 n_bytes = facet->byte_count - facet->accounted_bytes;
3919 /* This loop feeds byte counters to bond_account() for rebalancing to use
3920 * as a basis. We also need to track the actual VLAN on which the packet
3921 * is going to be sent to ensure that it matches the one passed to
3922 * bond_choose_output_slave(). (Otherwise, we will account to the wrong
3925 * We use the actions from an arbitrary subfacet because they should all
3926 * be equally valid for our purpose. */
3927 vlan_tci = facet->flow.vlan_tci;
3928 NL_ATTR_FOR_EACH_UNSAFE (a, left, facet->xout.odp_actions.data,
3929 facet->xout.odp_actions.size) {
3930 const struct ovs_action_push_vlan *vlan;
3931 struct ofport_dpif *port;
3933 switch (nl_attr_type(a)) {
3934 case OVS_ACTION_ATTR_OUTPUT:
3935 port = get_odp_port(facet->ofproto, nl_attr_get_odp_port(a));
3936 if (port && port->bundle && port->bundle->bond) {
3937 bond_account(port->bundle->bond, &facet->flow,
3938 vlan_tci_to_vid(vlan_tci), n_bytes);
3942 case OVS_ACTION_ATTR_POP_VLAN:
3943 vlan_tci = htons(0);
3946 case OVS_ACTION_ATTR_PUSH_VLAN:
3947 vlan = nl_attr_get(a);
3948 vlan_tci = vlan->vlan_tci;
3954 /* Returns true if the only action for 'facet' is to send to the controller.
3955 * (We don't report NetFlow expiration messages for such facets because they
3956 * are just part of the control logic for the network, not real traffic). */
3958 facet_is_controller_flow(struct facet *facet)
3961 struct ofproto_dpif *ofproto = facet->ofproto;
3962 const struct ofpact *ofpacts;
3963 struct rule_actions *actions;
3964 struct rule_dpif *rule;
3968 rule_dpif_lookup(ofproto, &facet->flow, NULL, &rule);
3969 actions = rule_dpif_get_actions(rule);
3970 rule_dpif_unref(rule);
3972 ofpacts_len = actions->ofpacts_len;
3973 ofpacts = actions->ofpacts;
3974 is_controller = ofpacts_len > 0
3975 && ofpacts->type == OFPACT_CONTROLLER
3976 && ofpact_next(ofpacts) >= ofpact_end(ofpacts, ofpacts_len);
3977 rule_actions_unref(actions);
3979 return is_controller;
3984 /* Folds all of 'facet''s statistics into its rule. Also updates the
3985 * accounting ofhook and emits a NetFlow expiration if appropriate. All of
3986 * 'facet''s statistics in the datapath should have been zeroed and folded into
3987 * its packet and byte counts before this function is called. */
3989 facet_flush_stats(struct facet *facet)
3991 struct ofproto_dpif *ofproto = facet->ofproto;
3992 struct subfacet *subfacet;
3994 LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
3995 ovs_assert(!subfacet->dp_byte_count);
3996 ovs_assert(!subfacet->dp_packet_count);
3999 facet_push_stats(facet, false);
4000 if (facet->accounted_bytes < facet->byte_count) {
4001 facet_account(facet);
4002 facet->accounted_bytes = facet->byte_count;
4005 if (ofproto->netflow && !facet_is_controller_flow(facet)) {
4006 struct ofexpired expired;
4007 expired.flow = facet->flow;
4008 expired.packet_count = facet->packet_count;
4009 expired.byte_count = facet->byte_count;
4010 expired.used = facet->used;
4011 netflow_expire(ofproto->netflow, &facet->nf_flow, &expired);
4014 /* Reset counters to prevent double counting if 'facet' ever gets
4016 facet_reset_counters(facet);
4018 netflow_flow_clear(&facet->nf_flow);
4019 facet->tcp_flags = 0;
4022 /* Searches 'ofproto''s table of facets for one which would be responsible for
4023 * 'flow'. Returns it if found, otherwise a null pointer.
4025 * The returned facet might need revalidation; use facet_lookup_valid()
4026 * instead if that is important. */
4027 static struct facet *
4028 facet_find(struct ofproto_dpif *ofproto, const struct flow *flow)
4030 struct cls_rule *cr;
4032 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
4033 cr = classifier_lookup(&ofproto->facets, flow, NULL);
4034 ovs_rwlock_unlock(&ofproto->facets.rwlock);
4035 return cr ? CONTAINER_OF(cr, struct facet, cr) : NULL;
4038 /* Searches 'ofproto''s table of facets for one capable that covers
4039 * 'flow'. Returns it if found, otherwise a null pointer.
4041 * The returned facet is guaranteed to be valid. */
4042 static struct facet *
4043 facet_lookup_valid(struct ofproto_dpif *ofproto, const struct flow *flow)
4045 struct facet *facet;
4047 facet = facet_find(ofproto, flow);
4049 && ofproto->backer->need_revalidate
4050 && !facet_revalidate(facet)) {
4058 facet_check_consistency(struct facet *facet)
4060 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15);
4062 struct xlate_out xout;
4063 struct xlate_in xin;
4066 /* Check the datapath actions for consistency. */
4067 xlate_in_init(&xin, facet->ofproto, &facet->flow, NULL, 0, NULL);
4068 xlate_actions(&xin, &xout);
4070 ok = ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)
4071 && facet->xout.slow == xout.slow;
4072 if (!ok && !VLOG_DROP_WARN(&rl)) {
4073 struct ds s = DS_EMPTY_INITIALIZER;
4075 flow_format(&s, &facet->flow);
4076 ds_put_cstr(&s, ": inconsistency in facet");
4078 if (!ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)) {
4079 ds_put_cstr(&s, " (actions were: ");
4080 format_odp_actions(&s, facet->xout.odp_actions.data,
4081 facet->xout.odp_actions.size);
4082 ds_put_cstr(&s, ") (correct actions: ");
4083 format_odp_actions(&s, xout.odp_actions.data,
4084 xout.odp_actions.size);
4085 ds_put_char(&s, ')');
4088 if (facet->xout.slow != xout.slow) {
4089 ds_put_format(&s, " slow path incorrect. should be %d", xout.slow);
4094 xlate_out_uninit(&xout);
4099 /* Re-searches the classifier for 'facet':
4101 * - If the rule found is different from 'facet''s current rule, moves
4102 * 'facet' to the new rule and recompiles its actions.
4104 * - If the rule found is the same as 'facet''s current rule, leaves 'facet'
4105 * where it is and recompiles its actions anyway.
4107 * - If any of 'facet''s subfacets correspond to a new flow according to
4108 * xlate_receive(), 'facet' is removed.
4110 * Returns true if 'facet' is still valid. False if 'facet' was removed. */
4112 facet_revalidate(struct facet *facet)
4114 struct ofproto_dpif *ofproto = facet->ofproto;
4115 struct rule_dpif *new_rule;
4116 struct subfacet *subfacet;
4117 struct flow_wildcards wc;
4118 struct xlate_out xout;
4119 struct xlate_in xin;
4121 COVERAGE_INC(facet_revalidate);
4123 /* Check that child subfacets still correspond to this facet. Tunnel
4124 * configuration changes could cause a subfacet's OpenFlow in_port to
4126 LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
4127 struct ofproto_dpif *recv_ofproto;
4128 struct flow recv_flow;
4131 error = xlate_receive(ofproto->backer, NULL, subfacet->key,
4132 subfacet->key_len, &recv_flow, NULL,
4133 &recv_ofproto, NULL);
4135 || recv_ofproto != ofproto
4136 || facet != facet_find(ofproto, &recv_flow)) {
4137 facet_remove(facet);
4142 flow_wildcards_init_catchall(&wc);
4143 rule_dpif_lookup(ofproto, &facet->flow, &wc, &new_rule);
4145 /* Calculate new datapath actions.
4147 * We do not modify any 'facet' state yet, because we might need to, e.g.,
4148 * emit a NetFlow expiration and, if so, we need to have the old state
4149 * around to properly compose it. */
4150 xlate_in_init(&xin, ofproto, &facet->flow, new_rule, 0, NULL);
4151 xlate_actions(&xin, &xout);
4152 flow_wildcards_or(&xout.wc, &xout.wc, &wc);
4154 /* A facet's slow path reason should only change under dramatic
4155 * circumstances. Rather than try to update everything, it's simpler to
4156 * remove the facet and start over.
4158 * More importantly, if a facet's wildcards change, it will be relatively
4159 * difficult to figure out if its subfacets still belong to it, and if not
4160 * which facet they may belong to. Again, to avoid the complexity, we
4161 * simply give up instead. */
4162 if (facet->xout.slow != xout.slow
4163 || memcmp(&facet->xout.wc, &xout.wc, sizeof xout.wc)) {
4164 facet_remove(facet);
4165 xlate_out_uninit(&xout);
4166 rule_dpif_unref(new_rule);
4170 if (!ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)) {
4171 LIST_FOR_EACH(subfacet, list_node, &facet->subfacets) {
4172 if (subfacet->path == SF_FAST_PATH) {
4173 struct dpif_flow_stats stats;
4175 subfacet_install(subfacet, &xout.odp_actions, &stats);
4176 subfacet_update_stats(subfacet, &stats);
4180 facet_flush_stats(facet);
4182 ofpbuf_clear(&facet->xout.odp_actions);
4183 ofpbuf_put(&facet->xout.odp_actions, xout.odp_actions.data,
4184 xout.odp_actions.size);
4187 /* Update 'facet' now that we've taken care of all the old state. */
4188 facet->xout.slow = xout.slow;
4189 facet->xout.has_learn = xout.has_learn;
4190 facet->xout.has_normal = xout.has_normal;
4191 facet->xout.has_fin_timeout = xout.has_fin_timeout;
4192 facet->xout.nf_output_iface = xout.nf_output_iface;
4193 facet->xout.mirrors = xout.mirrors;
4194 facet->nf_flow.output_iface = facet->xout.nf_output_iface;
4196 ovs_mutex_lock(&new_rule->up.mutex);
4197 facet->used = MAX(facet->used, new_rule->up.created);
4198 ovs_mutex_unlock(&new_rule->up.mutex);
4200 xlate_out_uninit(&xout);
4201 rule_dpif_unref(new_rule);
4206 facet_reset_counters(struct facet *facet)
4208 facet->packet_count = 0;
4209 facet->byte_count = 0;
4210 facet->prev_packet_count = 0;
4211 facet->prev_byte_count = 0;
4212 facet->accounted_bytes = 0;
4216 flow_push_stats(struct ofproto_dpif *ofproto, struct flow *flow,
4217 struct dpif_flow_stats *stats, bool may_learn)
4219 struct ofport_dpif *in_port;
4220 struct xlate_in xin;
4222 in_port = get_ofp_port(ofproto, flow->in_port.ofp_port);
4223 if (in_port && in_port->is_tunnel) {
4224 netdev_vport_inc_rx(in_port->up.netdev, stats);
4227 xlate_in_init(&xin, ofproto, flow, NULL, stats->tcp_flags, NULL);
4228 xin.resubmit_stats = stats;
4229 xin.may_learn = may_learn;
4230 xlate_actions_for_side_effects(&xin);
4234 facet_push_stats(struct facet *facet, bool may_learn)
4236 struct dpif_flow_stats stats;
4238 ovs_assert(facet->packet_count >= facet->prev_packet_count);
4239 ovs_assert(facet->byte_count >= facet->prev_byte_count);
4240 ovs_assert(facet->used >= facet->prev_used);
4242 stats.n_packets = facet->packet_count - facet->prev_packet_count;
4243 stats.n_bytes = facet->byte_count - facet->prev_byte_count;
4244 stats.used = facet->used;
4245 stats.tcp_flags = facet->tcp_flags;
4247 if (may_learn || stats.n_packets || facet->used > facet->prev_used) {
4248 facet->prev_packet_count = facet->packet_count;
4249 facet->prev_byte_count = facet->byte_count;
4250 facet->prev_used = facet->used;
4252 netflow_flow_update_time(facet->ofproto->netflow, &facet->nf_flow,
4254 netflow_flow_update_flags(&facet->nf_flow, facet->tcp_flags);
4255 mirror_update_stats(facet->ofproto->mbridge, facet->xout.mirrors,
4256 stats.n_packets, stats.n_bytes);
4257 flow_push_stats(facet->ofproto, &facet->flow, &stats, may_learn);
4262 push_all_stats__(bool run_fast)
4264 static long long int rl = LLONG_MIN;
4265 struct ofproto_dpif *ofproto;
4267 if (time_msec() < rl) {
4271 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
4272 struct cls_cursor cursor;
4273 struct facet *facet;
4275 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
4276 cls_cursor_init(&cursor, &ofproto->facets, NULL);
4277 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
4278 facet_push_stats(facet, false);
4283 ovs_rwlock_unlock(&ofproto->facets.rwlock);
4286 rl = time_msec() + 100;
4290 push_all_stats(void)
4292 push_all_stats__(true);
4296 rule_dpif_credit_stats(struct rule_dpif *rule,
4297 const struct dpif_flow_stats *stats)
4299 ovs_mutex_lock(&rule->stats_mutex);
4300 rule->packet_count += stats->n_packets;
4301 rule->byte_count += stats->n_bytes;
4302 rule->up.used = MAX(rule->up.used, stats->used);
4303 ovs_mutex_unlock(&rule->stats_mutex);
4307 rule_dpif_is_fail_open(const struct rule_dpif *rule)
4309 return is_fail_open_rule(&rule->up);
4313 rule_dpif_is_table_miss(const struct rule_dpif *rule)
4315 return rule_is_table_miss(&rule->up);
4319 rule_dpif_get_flow_cookie(const struct rule_dpif *rule)
4320 OVS_REQUIRES(rule->up.mutex)
4322 return rule->up.flow_cookie;
4326 rule_dpif_reduce_timeouts(struct rule_dpif *rule, uint16_t idle_timeout,
4327 uint16_t hard_timeout)
4329 ofproto_rule_reduce_timeouts(&rule->up, idle_timeout, hard_timeout);
4332 /* Returns 'rule''s actions. The caller owns a reference on the returned
4333 * actions and must eventually release it (with rule_actions_unref()) to avoid
4335 struct rule_actions *
4336 rule_dpif_get_actions(const struct rule_dpif *rule)
4338 return rule_get_actions(&rule->up);
4343 static struct subfacet *
4344 subfacet_find(struct dpif_backer *backer, const struct nlattr *key,
4345 size_t key_len, uint32_t key_hash)
4347 struct subfacet *subfacet;
4349 HMAP_FOR_EACH_WITH_HASH (subfacet, hmap_node, key_hash,
4350 &backer->subfacets) {
4351 if (subfacet->key_len == key_len
4352 && !memcmp(key, subfacet->key, key_len)) {
4360 /* Searches 'facet' (within 'ofproto') for a subfacet with the specified
4361 * 'key_fitness', 'key', and 'key_len' members in 'miss'. Returns the
4362 * existing subfacet if there is one, otherwise creates and returns a
4364 static struct subfacet *
4365 subfacet_create(struct facet *facet, struct flow_miss *miss)
4367 struct dpif_backer *backer = miss->ofproto->backer;
4368 const struct nlattr *key = miss->key;
4369 size_t key_len = miss->key_len;
4371 struct subfacet *subfacet;
4373 key_hash = odp_flow_key_hash(key, key_len);
4375 if (list_is_empty(&facet->subfacets)) {
4376 subfacet = &facet->one_subfacet;
4378 subfacet = subfacet_find(backer, key, key_len, key_hash);
4380 if (subfacet->facet == facet) {
4384 /* This shouldn't happen. */
4385 VLOG_ERR_RL(&rl, "subfacet with wrong facet");
4386 subfacet_destroy(subfacet);
4389 subfacet = xmalloc(sizeof *subfacet);
4392 COVERAGE_INC(subfacet_create);
4393 hmap_insert(&backer->subfacets, &subfacet->hmap_node, key_hash);
4394 list_push_back(&facet->subfacets, &subfacet->list_node);
4395 subfacet->facet = facet;
4396 subfacet->key = xmemdup(key, key_len);
4397 subfacet->key_len = key_len;
4398 subfacet->used = miss->stats.used;
4399 subfacet->created = subfacet->used;
4400 subfacet->dp_packet_count = 0;
4401 subfacet->dp_byte_count = 0;
4402 subfacet->path = SF_NOT_INSTALLED;
4403 subfacet->backer = backer;
4408 /* Uninstalls 'subfacet' from the datapath, if it is installed, removes it from
4409 * its facet within 'ofproto', and frees it. */
4411 subfacet_destroy__(struct subfacet *subfacet)
4413 struct facet *facet = subfacet->facet;
4415 COVERAGE_INC(subfacet_destroy);
4416 subfacet_uninstall(subfacet);
4417 hmap_remove(&subfacet->backer->subfacets, &subfacet->hmap_node);
4418 list_remove(&subfacet->list_node);
4419 free(subfacet->key);
4420 if (subfacet != &facet->one_subfacet) {
4425 /* Destroys 'subfacet', as with subfacet_destroy__(), and then if this was the
4426 * last remaining subfacet in its facet destroys the facet too. */
4428 subfacet_destroy(struct subfacet *subfacet)
4430 struct facet *facet = subfacet->facet;
4432 if (list_is_singleton(&facet->subfacets)) {
4433 /* facet_remove() needs at least one subfacet (it will remove it). */
4434 facet_remove(facet);
4436 subfacet_destroy__(subfacet);
4441 subfacet_destroy_batch(struct dpif_backer *backer,
4442 struct subfacet **subfacets, int n)
4444 struct dpif_op ops[SUBFACET_DESTROY_MAX_BATCH];
4445 struct dpif_op *opsp[SUBFACET_DESTROY_MAX_BATCH];
4446 struct dpif_flow_stats stats[SUBFACET_DESTROY_MAX_BATCH];
4449 for (i = 0; i < n; i++) {
4450 ops[i].type = DPIF_OP_FLOW_DEL;
4451 ops[i].u.flow_del.key = subfacets[i]->key;
4452 ops[i].u.flow_del.key_len = subfacets[i]->key_len;
4453 ops[i].u.flow_del.stats = &stats[i];
4457 dpif_operate(backer->dpif, opsp, n);
4458 for (i = 0; i < n; i++) {
4459 subfacet_reset_dp_stats(subfacets[i], &stats[i]);
4460 subfacets[i]->path = SF_NOT_INSTALLED;
4461 subfacet_destroy(subfacets[i]);
4466 /* Updates 'subfacet''s datapath flow, setting its actions to 'actions_len'
4467 * bytes of actions in 'actions'. If 'stats' is non-null, statistics counters
4468 * in the datapath will be zeroed and 'stats' will be updated with traffic new
4469 * since 'subfacet' was last updated.
4471 * Returns 0 if successful, otherwise a positive errno value. */
4473 subfacet_install(struct subfacet *subfacet, const struct ofpbuf *odp_actions,
4474 struct dpif_flow_stats *stats)
4476 struct facet *facet = subfacet->facet;
4477 enum subfacet_path path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH;
4478 const struct nlattr *actions = odp_actions->data;
4479 size_t actions_len = odp_actions->size;
4480 struct odputil_keybuf maskbuf;
4483 uint64_t slow_path_stub[128 / 8];
4484 enum dpif_flow_put_flags flags;
4487 flags = subfacet->path == SF_NOT_INSTALLED ? DPIF_FP_CREATE
4490 flags |= DPIF_FP_ZERO_STATS;
4493 if (path == SF_SLOW_PATH) {
4494 compose_slow_path(facet->ofproto, &facet->flow, facet->xout.slow,
4495 slow_path_stub, sizeof slow_path_stub,
4496 &actions, &actions_len);
4499 ofpbuf_use_stack(&mask, &maskbuf, sizeof maskbuf);
4500 if (enable_megaflows) {
4501 odp_flow_key_from_mask(&mask, &facet->xout.wc.masks,
4502 &facet->flow, UINT32_MAX);
4505 ret = dpif_flow_put(subfacet->backer->dpif, flags, subfacet->key,
4506 subfacet->key_len, mask.data, mask.size,
4507 actions, actions_len, stats);
4510 subfacet_reset_dp_stats(subfacet, stats);
4514 COVERAGE_INC(subfacet_install_fail);
4516 subfacet->path = path;
4521 /* If 'subfacet' is installed in the datapath, uninstalls it. */
4523 subfacet_uninstall(struct subfacet *subfacet)
4525 if (subfacet->path != SF_NOT_INSTALLED) {
4526 struct ofproto_dpif *ofproto = subfacet->facet->ofproto;
4527 struct dpif_flow_stats stats;
4530 error = dpif_flow_del(ofproto->backer->dpif, subfacet->key,
4531 subfacet->key_len, &stats);
4532 subfacet_reset_dp_stats(subfacet, &stats);
4534 subfacet_update_stats(subfacet, &stats);
4536 subfacet->path = SF_NOT_INSTALLED;
4538 ovs_assert(subfacet->dp_packet_count == 0);
4539 ovs_assert(subfacet->dp_byte_count == 0);
4543 /* Resets 'subfacet''s datapath statistics counters. This should be called
4544 * when 'subfacet''s statistics are cleared in the datapath. If 'stats' is
4545 * non-null, it should contain the statistics returned by dpif when 'subfacet'
4546 * was reset in the datapath. 'stats' will be modified to include only
4547 * statistics new since 'subfacet' was last updated. */
4549 subfacet_reset_dp_stats(struct subfacet *subfacet,
4550 struct dpif_flow_stats *stats)
4553 && subfacet->dp_packet_count <= stats->n_packets
4554 && subfacet->dp_byte_count <= stats->n_bytes) {
4555 stats->n_packets -= subfacet->dp_packet_count;
4556 stats->n_bytes -= subfacet->dp_byte_count;
4559 subfacet->dp_packet_count = 0;
4560 subfacet->dp_byte_count = 0;
4563 /* Folds the statistics from 'stats' into the counters in 'subfacet'.
4565 * Because of the meaning of a subfacet's counters, it only makes sense to do
4566 * this if 'stats' are not tracked in the datapath, that is, if 'stats'
4567 * represents a packet that was sent by hand or if it represents statistics
4568 * that have been cleared out of the datapath. */
4570 subfacet_update_stats(struct subfacet *subfacet,
4571 const struct dpif_flow_stats *stats)
4573 if (stats->n_packets || stats->used > subfacet->used) {
4574 struct facet *facet = subfacet->facet;
4576 subfacet->used = MAX(subfacet->used, stats->used);
4577 facet->used = MAX(facet->used, stats->used);
4578 facet->packet_count += stats->n_packets;
4579 facet->byte_count += stats->n_bytes;
4580 facet->tcp_flags |= stats->tcp_flags;
4586 /* Lookup 'flow' in 'ofproto''s classifier. If 'wc' is non-null, sets
4587 * the fields that were relevant as part of the lookup. */
4589 rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow,
4590 struct flow_wildcards *wc, struct rule_dpif **rule)
4592 struct ofport_dpif *port;
4594 if (rule_dpif_lookup_in_table(ofproto, flow, wc, 0, rule)) {
4597 port = get_ofp_port(ofproto, flow->in_port.ofp_port);
4599 VLOG_WARN_RL(&rl, "packet-in on unknown OpenFlow port %"PRIu16,
4600 flow->in_port.ofp_port);
4603 choose_miss_rule(port ? port->up.pp.config : 0, ofproto->miss_rule,
4604 ofproto->no_packet_in_rule, rule);
4608 rule_dpif_lookup_in_table(struct ofproto_dpif *ofproto,
4609 const struct flow *flow, struct flow_wildcards *wc,
4610 uint8_t table_id, struct rule_dpif **rule)
4612 const struct cls_rule *cls_rule;
4613 struct classifier *cls;
4617 if (table_id >= N_TABLES) {
4622 memset(&wc->masks.dl_type, 0xff, sizeof wc->masks.dl_type);
4623 wc->masks.nw_frag |= FLOW_NW_FRAG_MASK;
4626 cls = &ofproto->up.tables[table_id].cls;
4627 ovs_rwlock_rdlock(&cls->rwlock);
4628 frag = (flow->nw_frag & FLOW_NW_FRAG_ANY) != 0;
4629 if (frag && ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
4630 /* We must pretend that transport ports are unavailable. */
4631 struct flow ofpc_normal_flow = *flow;
4632 ofpc_normal_flow.tp_src = htons(0);
4633 ofpc_normal_flow.tp_dst = htons(0);
4634 cls_rule = classifier_lookup(cls, &ofpc_normal_flow, wc);
4635 } else if (frag && ofproto->up.frag_handling == OFPC_FRAG_DROP) {
4636 cls_rule = &ofproto->drop_frags_rule->up.cr;
4637 /* Frag mask in wc already set above. */
4639 cls_rule = classifier_lookup(cls, flow, wc);
4642 *rule = rule_dpif_cast(rule_from_cls_rule(cls_rule));
4643 rule_dpif_ref(*rule);
4644 ovs_rwlock_unlock(&cls->rwlock);
4646 return *rule != NULL;
4649 /* Given a port configuration (specified as zero if there's no port), chooses
4650 * which of 'miss_rule' and 'no_packet_in_rule' should be used in case of a
4651 * flow table miss. */
4653 choose_miss_rule(enum ofputil_port_config config, struct rule_dpif *miss_rule,
4654 struct rule_dpif *no_packet_in_rule, struct rule_dpif **rule)
4656 *rule = config & OFPUTIL_PC_NO_PACKET_IN ? no_packet_in_rule : miss_rule;
4657 rule_dpif_ref(*rule);
4661 rule_dpif_ref(struct rule_dpif *rule)
4664 ofproto_rule_ref(&rule->up);
4669 rule_dpif_unref(struct rule_dpif *rule)
4672 ofproto_rule_unref(&rule->up);
4677 complete_operation(struct rule_dpif *rule)
4678 OVS_REQUIRES(ofproto_mutex)
4680 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
4682 ofproto->backer->need_revalidate = REV_FLOW_TABLE;
4683 ofoperation_complete(rule->up.pending, 0);
4686 static struct rule_dpif *rule_dpif_cast(const struct rule *rule)
4688 return rule ? CONTAINER_OF(rule, struct rule_dpif, up) : NULL;
4691 static struct rule *
4694 struct rule_dpif *rule = xmalloc(sizeof *rule);
4699 rule_dealloc(struct rule *rule_)
4701 struct rule_dpif *rule = rule_dpif_cast(rule_);
4706 rule_construct(struct rule *rule_)
4708 struct rule_dpif *rule = rule_dpif_cast(rule_);
4709 ovs_mutex_init(&rule->stats_mutex);
4710 ovs_mutex_lock(&rule->stats_mutex);
4711 rule->packet_count = 0;
4712 rule->byte_count = 0;
4713 ovs_mutex_unlock(&rule->stats_mutex);
4718 rule_insert(struct rule *rule_)
4719 OVS_REQUIRES(ofproto_mutex)
4721 struct rule_dpif *rule = rule_dpif_cast(rule_);
4722 complete_operation(rule);
4726 rule_delete(struct rule *rule_)
4727 OVS_REQUIRES(ofproto_mutex)
4729 struct rule_dpif *rule = rule_dpif_cast(rule_);
4730 complete_operation(rule);
4734 rule_destruct(struct rule *rule_)
4736 struct rule_dpif *rule = rule_dpif_cast(rule_);
4737 ovs_mutex_destroy(&rule->stats_mutex);
4741 rule_get_stats(struct rule *rule_, uint64_t *packets, uint64_t *bytes)
4743 struct rule_dpif *rule = rule_dpif_cast(rule_);
4745 /* push_all_stats() can handle flow misses which, when using the learn
4746 * action, can cause rules to be added and deleted. This can corrupt our
4747 * caller's datastructures which assume that rule_get_stats() doesn't have
4748 * an impact on the flow table. To be safe, we disable miss handling. */
4749 push_all_stats__(false);
4751 /* Start from historical data for 'rule' itself that are no longer tracked
4752 * in facets. This counts, for example, facets that have expired. */
4753 ovs_mutex_lock(&rule->stats_mutex);
4754 *packets = rule->packet_count;
4755 *bytes = rule->byte_count;
4756 ovs_mutex_unlock(&rule->stats_mutex);
4760 rule_dpif_execute(struct rule_dpif *rule, const struct flow *flow,
4761 struct ofpbuf *packet)
4763 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
4765 ofproto_dpif_execute_actions(ofproto, flow, rule, NULL, 0, packet);
4769 rule_execute(struct rule *rule, const struct flow *flow,
4770 struct ofpbuf *packet)
4772 rule_dpif_execute(rule_dpif_cast(rule), flow, packet);
4773 ofpbuf_delete(packet);
4778 rule_modify_actions(struct rule *rule_, bool reset_counters)
4779 OVS_REQUIRES(ofproto_mutex)
4781 struct rule_dpif *rule = rule_dpif_cast(rule_);
4783 if (reset_counters) {
4784 ovs_mutex_lock(&rule->stats_mutex);
4785 rule->packet_count = 0;
4786 rule->byte_count = 0;
4787 ovs_mutex_unlock(&rule->stats_mutex);
4790 complete_operation(rule);
4793 /* Sends 'packet' out 'ofport'.
4794 * May modify 'packet'.
4795 * Returns 0 if successful, otherwise a positive errno value. */
4797 ofproto_dpif_send_packet(const struct ofport_dpif *ofport, struct ofpbuf *packet)
4799 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
4802 error = xlate_send_packet(ofport, packet);
4804 ovs_mutex_lock(&ofproto->stats_mutex);
4805 ofproto->stats.tx_packets++;
4806 ofproto->stats.tx_bytes += packet->size;
4807 ovs_mutex_unlock(&ofproto->stats_mutex);
4811 /* Composes an ODP action for a "slow path" action for 'flow' within 'ofproto'.
4812 * The action will state 'slow' as the reason that the action is in the slow
4813 * path. (This is purely informational: it allows a human viewing "ovs-dpctl
4814 * dump-flows" output to see why a flow is in the slow path.)
4816 * The 'stub_size' bytes in 'stub' will be used to store the action.
4817 * 'stub_size' must be large enough for the action.
4819 * The action and its size will be stored in '*actionsp' and '*actions_lenp',
4822 compose_slow_path(const struct ofproto_dpif *ofproto, const struct flow *flow,
4823 enum slow_path_reason slow,
4824 uint64_t *stub, size_t stub_size,
4825 const struct nlattr **actionsp, size_t *actions_lenp)
4827 union user_action_cookie cookie;
4830 cookie.type = USER_ACTION_COOKIE_SLOW_PATH;
4831 cookie.slow_path.unused = 0;
4832 cookie.slow_path.reason = slow;
4834 ofpbuf_use_stack(&buf, stub, stub_size);
4835 if (slow & (SLOW_CFM | SLOW_BFD | SLOW_LACP | SLOW_STP)) {
4836 uint32_t pid = dpif_port_get_pid(ofproto->backer->dpif,
4838 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, &buf);
4840 odp_port_t odp_port;
4843 odp_port = ofp_port_to_odp_port(ofproto, flow->in_port.ofp_port);
4844 pid = dpif_port_get_pid(ofproto->backer->dpif, odp_port);
4845 odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, &buf);
4847 *actionsp = buf.data;
4848 *actions_lenp = buf.size;
4852 set_frag_handling(struct ofproto *ofproto_,
4853 enum ofp_config_flags frag_handling)
4855 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4856 if (frag_handling != OFPC_FRAG_REASM) {
4857 ofproto->backer->need_revalidate = REV_RECONFIGURE;
4865 packet_out(struct ofproto *ofproto_, struct ofpbuf *packet,
4866 const struct flow *flow,
4867 const struct ofpact *ofpacts, size_t ofpacts_len)
4869 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4871 ofproto_dpif_execute_actions(ofproto, flow, NULL, ofpacts,
4872 ofpacts_len, packet);
4879 set_netflow(struct ofproto *ofproto_,
4880 const struct netflow_options *netflow_options)
4882 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4884 if (netflow_options) {
4885 if (!ofproto->netflow) {
4886 ofproto->netflow = netflow_create();
4887 ofproto->backer->need_revalidate = REV_RECONFIGURE;
4889 return netflow_set_options(ofproto->netflow, netflow_options);
4890 } else if (ofproto->netflow) {
4891 ofproto->backer->need_revalidate = REV_RECONFIGURE;
4892 netflow_destroy(ofproto->netflow);
4893 ofproto->netflow = NULL;
4900 get_netflow_ids(const struct ofproto *ofproto_,
4901 uint8_t *engine_type, uint8_t *engine_id)
4903 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4905 dpif_get_netflow_ids(ofproto->backer->dpif, engine_type, engine_id);
4909 send_active_timeout(struct ofproto_dpif *ofproto, struct facet *facet)
4911 if (!facet_is_controller_flow(facet) &&
4912 netflow_active_timeout_expired(ofproto->netflow, &facet->nf_flow)) {
4913 struct subfacet *subfacet;
4914 struct ofexpired expired;
4916 LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
4917 if (subfacet->path == SF_FAST_PATH) {
4918 struct dpif_flow_stats stats;
4920 subfacet_install(subfacet, &facet->xout.odp_actions,
4922 subfacet_update_stats(subfacet, &stats);
4926 expired.flow = facet->flow;
4927 expired.packet_count = facet->packet_count;
4928 expired.byte_count = facet->byte_count;
4929 expired.used = facet->used;
4930 netflow_expire(ofproto->netflow, &facet->nf_flow, &expired);
4935 send_netflow_active_timeouts(struct ofproto_dpif *ofproto)
4937 struct cls_cursor cursor;
4938 struct facet *facet;
4940 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
4941 cls_cursor_init(&cursor, &ofproto->facets, NULL);
4942 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
4943 send_active_timeout(ofproto, facet);
4945 ovs_rwlock_unlock(&ofproto->facets.rwlock);
4948 static struct ofproto_dpif *
4949 ofproto_dpif_lookup(const char *name)
4951 struct ofproto_dpif *ofproto;
4953 HMAP_FOR_EACH_WITH_HASH (ofproto, all_ofproto_dpifs_node,
4954 hash_string(name, 0), &all_ofproto_dpifs) {
4955 if (!strcmp(ofproto->up.name, name)) {
4963 ofproto_unixctl_fdb_flush(struct unixctl_conn *conn, int argc,
4964 const char *argv[], void *aux OVS_UNUSED)
4966 struct ofproto_dpif *ofproto;
4969 ofproto = ofproto_dpif_lookup(argv[1]);
4971 unixctl_command_reply_error(conn, "no such bridge");
4974 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
4975 mac_learning_flush(ofproto->ml);
4976 ovs_rwlock_unlock(&ofproto->ml->rwlock);
4978 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
4979 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
4980 mac_learning_flush(ofproto->ml);
4981 ovs_rwlock_unlock(&ofproto->ml->rwlock);
4985 unixctl_command_reply(conn, "table successfully flushed");
4988 static struct ofport_dpif *
4989 ofbundle_get_a_port(const struct ofbundle *bundle)
4991 return CONTAINER_OF(list_front(&bundle->ports), struct ofport_dpif,
4996 ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
4997 const char *argv[], void *aux OVS_UNUSED)
4999 struct ds ds = DS_EMPTY_INITIALIZER;
5000 const struct ofproto_dpif *ofproto;
5001 const struct mac_entry *e;
5003 ofproto = ofproto_dpif_lookup(argv[1]);
5005 unixctl_command_reply_error(conn, "no such bridge");
5009 ds_put_cstr(&ds, " port VLAN MAC Age\n");
5010 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
5011 LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
5012 struct ofbundle *bundle = e->port.p;
5013 char name[OFP_MAX_PORT_NAME_LEN];
5015 ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
5017 ds_put_format(&ds, "%5s %4d "ETH_ADDR_FMT" %3d\n",
5018 name, e->vlan, ETH_ADDR_ARGS(e->mac),
5019 mac_entry_age(ofproto->ml, e));
5021 ovs_rwlock_unlock(&ofproto->ml->rwlock);
5022 unixctl_command_reply(conn, ds_cstr(&ds));
5027 struct xlate_out xout;
5028 struct xlate_in xin;
5034 trace_format_rule(struct ds *result, int level, const struct rule_dpif *rule)
5036 struct rule_actions *actions;
5039 ds_put_char_multiple(result, '\t', level);
5041 ds_put_cstr(result, "No match\n");
5045 ovs_mutex_lock(&rule->up.mutex);
5046 cookie = rule->up.flow_cookie;
5047 ovs_mutex_unlock(&rule->up.mutex);
5049 ds_put_format(result, "Rule: table=%"PRIu8" cookie=%#"PRIx64" ",
5050 rule ? rule->up.table_id : 0, ntohll(cookie));
5051 cls_rule_format(&rule->up.cr, result);
5052 ds_put_char(result, '\n');
5054 actions = rule_dpif_get_actions(rule);
5056 ds_put_char_multiple(result, '\t', level);
5057 ds_put_cstr(result, "OpenFlow actions=");
5058 ofpacts_format(actions->ofpacts, actions->ofpacts_len, result);
5059 ds_put_char(result, '\n');
5061 rule_actions_unref(actions);
5065 trace_format_flow(struct ds *result, int level, const char *title,
5066 struct trace_ctx *trace)
5068 ds_put_char_multiple(result, '\t', level);
5069 ds_put_format(result, "%s: ", title);
5070 if (flow_equal(&trace->xin.flow, &trace->flow)) {
5071 ds_put_cstr(result, "unchanged");
5073 flow_format(result, &trace->xin.flow);
5074 trace->flow = trace->xin.flow;
5076 ds_put_char(result, '\n');
5080 trace_format_regs(struct ds *result, int level, const char *title,
5081 struct trace_ctx *trace)
5085 ds_put_char_multiple(result, '\t', level);
5086 ds_put_format(result, "%s:", title);
5087 for (i = 0; i < FLOW_N_REGS; i++) {
5088 ds_put_format(result, " reg%zu=0x%"PRIx32, i, trace->flow.regs[i]);
5090 ds_put_char(result, '\n');
5094 trace_format_odp(struct ds *result, int level, const char *title,
5095 struct trace_ctx *trace)
5097 struct ofpbuf *odp_actions = &trace->xout.odp_actions;
5099 ds_put_char_multiple(result, '\t', level);
5100 ds_put_format(result, "%s: ", title);
5101 format_odp_actions(result, odp_actions->data, odp_actions->size);
5102 ds_put_char(result, '\n');
5106 trace_resubmit(struct xlate_in *xin, struct rule_dpif *rule, int recurse)
5108 struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
5109 struct ds *result = trace->result;
5111 ds_put_char(result, '\n');
5112 trace_format_flow(result, recurse + 1, "Resubmitted flow", trace);
5113 trace_format_regs(result, recurse + 1, "Resubmitted regs", trace);
5114 trace_format_odp(result, recurse + 1, "Resubmitted odp", trace);
5115 trace_format_rule(result, recurse + 1, rule);
5119 trace_report(struct xlate_in *xin, const char *s, int recurse)
5121 struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
5122 struct ds *result = trace->result;
5124 ds_put_char_multiple(result, '\t', recurse);
5125 ds_put_cstr(result, s);
5126 ds_put_char(result, '\n');
5130 ofproto_unixctl_trace(struct unixctl_conn *conn, int argc, const char *argv[],
5131 void *aux OVS_UNUSED)
5133 const struct dpif_backer *backer = NULL;
5134 struct ofproto_dpif *ofproto;
5135 struct ofpbuf odp_key, odp_mask;
5136 struct ofpbuf *packet;
5139 struct simap port_names;
5145 ofpbuf_init(&odp_key, 0);
5146 ofpbuf_init(&odp_mask, 0);
5147 simap_init(&port_names);
5149 /* Handle "-generate" or a hex string as the last argument. */
5150 if (!strcmp(argv[argc - 1], "-generate")) {
5151 packet = ofpbuf_new(0);
5154 const char *error = eth_from_hex(argv[argc - 1], &packet);
5157 } else if (argc == 4) {
5158 /* The 3-argument form must end in "-generate' or a hex string. */
5159 unixctl_command_reply_error(conn, error);
5164 /* odp_flow can have its in_port specified as a name instead of port no.
5165 * We do not yet know whether a given flow is a odp_flow or a br_flow.
5166 * But, to know whether a flow is odp_flow through odp_flow_from_string(),
5167 * we need to create a simap of name to port no. */
5169 const char *dp_type;
5170 if (!strncmp(argv[1], "ovs-", 4)) {
5171 dp_type = argv[1] + 4;
5175 backer = shash_find_data(&all_dpif_backers, dp_type);
5177 struct shash_node *node;
5178 if (shash_count(&all_dpif_backers) == 1) {
5179 node = shash_first(&all_dpif_backers);
5180 backer = node->data;
5183 if (backer && backer->dpif) {
5184 struct dpif_port dpif_port;
5185 struct dpif_port_dump port_dump;
5186 DPIF_PORT_FOR_EACH (&dpif_port, &port_dump, backer->dpif) {
5187 simap_put(&port_names, dpif_port.name,
5188 odp_to_u32(dpif_port.port_no));
5192 /* Parse the flow and determine whether a datapath or
5193 * bridge is specified. If function odp_flow_key_from_string()
5194 * returns 0, the flow is a odp_flow. If function
5195 * parse_ofp_exact_flow() returns 0, the flow is a br_flow. */
5196 if (!odp_flow_from_string(argv[argc - 1], &port_names, &odp_key, &odp_mask)) {
5198 unixctl_command_reply_error(conn, "Cannot find the datapath");
5202 if (xlate_receive(backer, NULL, odp_key.data, odp_key.size, &flow,
5203 NULL, &ofproto, NULL)) {
5204 unixctl_command_reply_error(conn, "Invalid datapath flow");
5207 ds_put_format(&result, "Bridge: %s\n", ofproto->up.name);
5208 } else if (!parse_ofp_exact_flow(&flow, NULL, argv[argc - 1], NULL)) {
5210 unixctl_command_reply_error(conn, "Must specify bridge name");
5214 ofproto = ofproto_dpif_lookup(argv[1]);
5216 unixctl_command_reply_error(conn, "Unknown bridge name");
5220 unixctl_command_reply_error(conn, "Bad flow syntax");
5224 /* Generate a packet, if requested. */
5226 if (!packet->size) {
5227 flow_compose(packet, &flow);
5229 union flow_in_port in_port_;
5231 in_port_ = flow.in_port;
5232 ds_put_cstr(&result, "Packet: ");
5233 s = ofp_packet_to_string(packet->data, packet->size);
5234 ds_put_cstr(&result, s);
5237 /* Use the metadata from the flow and the packet argument
5238 * to reconstruct the flow. */
5239 flow_extract(packet, flow.skb_priority, flow.pkt_mark, NULL,
5244 ofproto_trace(ofproto, &flow, packet, &result);
5245 unixctl_command_reply(conn, ds_cstr(&result));
5248 ds_destroy(&result);
5249 ofpbuf_delete(packet);
5250 ofpbuf_uninit(&odp_key);
5251 ofpbuf_uninit(&odp_mask);
5252 simap_destroy(&port_names);
5256 ofproto_trace(struct ofproto_dpif *ofproto, const struct flow *flow,
5257 const struct ofpbuf *packet, struct ds *ds)
5259 struct rule_dpif *rule;
5260 struct flow_wildcards wc;
5262 ds_put_cstr(ds, "Flow: ");
5263 flow_format(ds, flow);
5264 ds_put_char(ds, '\n');
5266 flow_wildcards_init_catchall(&wc);
5267 rule_dpif_lookup(ofproto, flow, &wc, &rule);
5269 trace_format_rule(ds, 0, rule);
5270 if (rule == ofproto->miss_rule) {
5271 ds_put_cstr(ds, "\nNo match, flow generates \"packet in\"s.\n");
5272 } else if (rule == ofproto->no_packet_in_rule) {
5273 ds_put_cstr(ds, "\nNo match, packets dropped because "
5274 "OFPPC_NO_PACKET_IN is set on in_port.\n");
5275 } else if (rule == ofproto->drop_frags_rule) {
5276 ds_put_cstr(ds, "\nPackets dropped because they are IP fragments "
5277 "and the fragment handling mode is \"drop\".\n");
5281 uint64_t odp_actions_stub[1024 / 8];
5282 struct ofpbuf odp_actions;
5283 struct trace_ctx trace;
5287 tcp_flags = packet ? packet_get_tcp_flags(packet, flow) : 0;
5290 ofpbuf_use_stub(&odp_actions,
5291 odp_actions_stub, sizeof odp_actions_stub);
5292 xlate_in_init(&trace.xin, ofproto, flow, rule, tcp_flags, packet);
5293 trace.xin.resubmit_hook = trace_resubmit;
5294 trace.xin.report_hook = trace_report;
5296 xlate_actions(&trace.xin, &trace.xout);
5297 flow_wildcards_or(&trace.xout.wc, &trace.xout.wc, &wc);
5299 ds_put_char(ds, '\n');
5300 trace_format_flow(ds, 0, "Final flow", &trace);
5302 match_init(&match, flow, &trace.xout.wc);
5303 ds_put_cstr(ds, "Relevant fields: ");
5304 match_format(&match, ds, OFP_DEFAULT_PRIORITY);
5305 ds_put_char(ds, '\n');
5307 ds_put_cstr(ds, "Datapath actions: ");
5308 format_odp_actions(ds, trace.xout.odp_actions.data,
5309 trace.xout.odp_actions.size);
5311 if (trace.xout.slow) {
5312 enum slow_path_reason slow;
5314 ds_put_cstr(ds, "\nThis flow is handled by the userspace "
5315 "slow path because it:");
5317 slow = trace.xout.slow;
5319 enum slow_path_reason bit = rightmost_1bit(slow);
5321 ds_put_format(ds, "\n\t- %s.",
5322 slow_path_reason_to_explanation(bit));
5328 xlate_out_uninit(&trace.xout);
5331 rule_dpif_unref(rule);
5334 /* Runs a self-check of flow translations in 'ofproto'. Appends a message to
5335 * 'reply' describing the results. */
5337 ofproto_dpif_self_check__(struct ofproto_dpif *ofproto, struct ds *reply)
5339 struct cls_cursor cursor;
5340 struct facet *facet;
5344 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
5345 cls_cursor_init(&cursor, &ofproto->facets, NULL);
5346 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
5347 if (!facet_check_consistency(facet)) {
5351 ovs_rwlock_unlock(&ofproto->facets.rwlock);
5353 ofproto->backer->need_revalidate = REV_INCONSISTENCY;
5357 ds_put_format(reply, "%s: self-check failed (%d errors)\n",
5358 ofproto->up.name, errors);
5360 ds_put_format(reply, "%s: self-check passed\n", ofproto->up.name);
5365 ofproto_dpif_self_check(struct unixctl_conn *conn,
5366 int argc, const char *argv[], void *aux OVS_UNUSED)
5368 struct ds reply = DS_EMPTY_INITIALIZER;
5369 struct ofproto_dpif *ofproto;
5372 ofproto = ofproto_dpif_lookup(argv[1]);
5374 unixctl_command_reply_error(conn, "Unknown ofproto (use "
5375 "ofproto/list for help)");
5378 ofproto_dpif_self_check__(ofproto, &reply);
5380 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5381 ofproto_dpif_self_check__(ofproto, &reply);
5385 unixctl_command_reply(conn, ds_cstr(&reply));
5389 /* Store the current ofprotos in 'ofproto_shash'. Returns a sorted list
5390 * of the 'ofproto_shash' nodes. It is the responsibility of the caller
5391 * to destroy 'ofproto_shash' and free the returned value. */
5392 static const struct shash_node **
5393 get_ofprotos(struct shash *ofproto_shash)
5395 const struct ofproto_dpif *ofproto;
5397 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5398 char *name = xasprintf("%s@%s", ofproto->up.type, ofproto->up.name);
5399 shash_add_nocopy(ofproto_shash, name, ofproto);
5402 return shash_sort(ofproto_shash);
5406 ofproto_unixctl_dpif_dump_dps(struct unixctl_conn *conn, int argc OVS_UNUSED,
5407 const char *argv[] OVS_UNUSED,
5408 void *aux OVS_UNUSED)
5410 struct ds ds = DS_EMPTY_INITIALIZER;
5411 struct shash ofproto_shash;
5412 const struct shash_node **sorted_ofprotos;
5415 shash_init(&ofproto_shash);
5416 sorted_ofprotos = get_ofprotos(&ofproto_shash);
5417 for (i = 0; i < shash_count(&ofproto_shash); i++) {
5418 const struct shash_node *node = sorted_ofprotos[i];
5419 ds_put_format(&ds, "%s\n", node->name);
5422 shash_destroy(&ofproto_shash);
5423 free(sorted_ofprotos);
5425 unixctl_command_reply(conn, ds_cstr(&ds));
5430 dpif_show_backer(const struct dpif_backer *backer, struct ds *ds)
5432 const struct shash_node **ofprotos;
5433 struct ofproto_dpif *ofproto;
5434 struct shash ofproto_shash;
5435 uint64_t n_hit, n_missed;
5438 n_hit = n_missed = 0;
5439 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5440 if (ofproto->backer == backer) {
5441 n_missed += ofproto->n_missed;
5442 n_hit += ofproto->n_hit;
5446 ds_put_format(ds, "%s: hit:%"PRIu64" missed:%"PRIu64"\n",
5447 dpif_name(backer->dpif), n_hit, n_missed);
5448 ds_put_format(ds, "\tflows: cur: %zu, avg: %u, max: %u,"
5449 " life span: %lldms\n", hmap_count(&backer->subfacets),
5450 backer->avg_n_subfacet, backer->max_n_subfacet,
5451 backer->avg_subfacet_life);
5453 shash_init(&ofproto_shash);
5454 ofprotos = get_ofprotos(&ofproto_shash);
5455 for (i = 0; i < shash_count(&ofproto_shash); i++) {
5456 struct ofproto_dpif *ofproto = ofprotos[i]->data;
5457 const struct shash_node **ports;
5460 if (ofproto->backer != backer) {
5464 ds_put_format(ds, "\t%s: hit:%"PRIu64" missed:%"PRIu64"\n",
5465 ofproto->up.name, ofproto->n_hit, ofproto->n_missed);
5467 ports = shash_sort(&ofproto->up.port_by_name);
5468 for (j = 0; j < shash_count(&ofproto->up.port_by_name); j++) {
5469 const struct shash_node *node = ports[j];
5470 struct ofport *ofport = node->data;
5472 odp_port_t odp_port;
5474 ds_put_format(ds, "\t\t%s %u/", netdev_get_name(ofport->netdev),
5477 odp_port = ofp_port_to_odp_port(ofproto, ofport->ofp_port);
5478 if (odp_port != ODPP_NONE) {
5479 ds_put_format(ds, "%"PRIu32":", odp_port);
5481 ds_put_cstr(ds, "none:");
5484 ds_put_format(ds, " (%s", netdev_get_type(ofport->netdev));
5487 if (!netdev_get_config(ofport->netdev, &config)) {
5488 const struct smap_node **nodes;
5491 nodes = smap_sort(&config);
5492 for (i = 0; i < smap_count(&config); i++) {
5493 const struct smap_node *node = nodes[i];
5494 ds_put_format(ds, "%c %s=%s", i ? ',' : ':',
5495 node->key, node->value);
5499 smap_destroy(&config);
5501 ds_put_char(ds, ')');
5502 ds_put_char(ds, '\n');
5506 shash_destroy(&ofproto_shash);
5511 ofproto_unixctl_dpif_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
5512 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
5514 struct ds ds = DS_EMPTY_INITIALIZER;
5515 const struct shash_node **backers;
5518 backers = shash_sort(&all_dpif_backers);
5519 for (i = 0; i < shash_count(&all_dpif_backers); i++) {
5520 dpif_show_backer(backers[i]->data, &ds);
5524 unixctl_command_reply(conn, ds_cstr(&ds));
5528 /* Dump the megaflow (facet) cache. This is useful to check the
5529 * correctness of flow wildcarding, since the same mechanism is used for
5530 * both xlate caching and kernel wildcarding.
5532 * It's important to note that in the output the flow description uses
5533 * OpenFlow (OFP) ports, but the actions use datapath (ODP) ports.
5535 * This command is only needed for advanced debugging, so it's not
5536 * documented in the man page. */
5538 ofproto_unixctl_dpif_dump_megaflows(struct unixctl_conn *conn,
5539 int argc OVS_UNUSED, const char *argv[],
5540 void *aux OVS_UNUSED)
5542 struct ds ds = DS_EMPTY_INITIALIZER;
5543 const struct ofproto_dpif *ofproto;
5544 long long int now = time_msec();
5545 struct cls_cursor cursor;
5546 struct facet *facet;
5548 ofproto = ofproto_dpif_lookup(argv[1]);
5550 unixctl_command_reply_error(conn, "no such bridge");
5554 ovs_rwlock_rdlock(&ofproto->facets.rwlock);
5555 cls_cursor_init(&cursor, &ofproto->facets, NULL);
5556 CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
5557 cls_rule_format(&facet->cr, &ds);
5558 ds_put_cstr(&ds, ", ");
5559 ds_put_format(&ds, "n_subfacets:%zu, ", list_size(&facet->subfacets));
5560 ds_put_format(&ds, "used:%.3fs, ", (now - facet->used) / 1000.0);
5561 ds_put_cstr(&ds, "Datapath actions: ");
5562 if (facet->xout.slow) {
5563 uint64_t slow_path_stub[128 / 8];
5564 const struct nlattr *actions;
5567 compose_slow_path(ofproto, &facet->flow, facet->xout.slow,
5568 slow_path_stub, sizeof slow_path_stub,
5569 &actions, &actions_len);
5570 format_odp_actions(&ds, actions, actions_len);
5572 format_odp_actions(&ds, facet->xout.odp_actions.data,
5573 facet->xout.odp_actions.size);
5575 ds_put_cstr(&ds, "\n");
5577 ovs_rwlock_unlock(&ofproto->facets.rwlock);
5579 ds_chomp(&ds, '\n');
5580 unixctl_command_reply(conn, ds_cstr(&ds));
5584 /* Disable using the megaflows.
5586 * This command is only needed for advanced debugging, so it's not
5587 * documented in the man page. */
5589 ofproto_unixctl_dpif_disable_megaflows(struct unixctl_conn *conn,
5590 int argc OVS_UNUSED,
5591 const char *argv[] OVS_UNUSED,
5592 void *aux OVS_UNUSED)
5594 struct ofproto_dpif *ofproto;
5596 enable_megaflows = false;
5598 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5599 flush(&ofproto->up);
5602 unixctl_command_reply(conn, "megaflows disabled");
5605 /* Re-enable using megaflows.
5607 * This command is only needed for advanced debugging, so it's not
5608 * documented in the man page. */
5610 ofproto_unixctl_dpif_enable_megaflows(struct unixctl_conn *conn,
5611 int argc OVS_UNUSED,
5612 const char *argv[] OVS_UNUSED,
5613 void *aux OVS_UNUSED)
5615 struct ofproto_dpif *ofproto;
5617 enable_megaflows = true;
5619 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
5620 flush(&ofproto->up);
5623 unixctl_command_reply(conn, "megaflows enabled");
5627 ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn,
5628 int argc OVS_UNUSED, const char *argv[],
5629 void *aux OVS_UNUSED)
5631 struct ds ds = DS_EMPTY_INITIALIZER;
5632 const struct ofproto_dpif *ofproto;
5633 struct subfacet *subfacet;
5635 ofproto = ofproto_dpif_lookup(argv[1]);
5637 unixctl_command_reply_error(conn, "no such bridge");
5641 update_stats(ofproto->backer);
5643 HMAP_FOR_EACH (subfacet, hmap_node, &ofproto->backer->subfacets) {
5644 struct facet *facet = subfacet->facet;
5645 struct odputil_keybuf maskbuf;
5648 if (facet->ofproto != ofproto) {
5652 ofpbuf_use_stack(&mask, &maskbuf, sizeof maskbuf);
5653 if (enable_megaflows) {
5654 odp_flow_key_from_mask(&mask, &facet->xout.wc.masks,
5655 &facet->flow, UINT32_MAX);
5658 odp_flow_format(subfacet->key, subfacet->key_len,
5659 mask.data, mask.size, NULL, &ds, false);
5661 ds_put_format(&ds, ", packets:%"PRIu64", bytes:%"PRIu64", used:",
5662 subfacet->dp_packet_count, subfacet->dp_byte_count);
5663 if (subfacet->used) {
5664 ds_put_format(&ds, "%.3fs",
5665 (time_msec() - subfacet->used) / 1000.0);
5667 ds_put_format(&ds, "never");
5669 if (subfacet->facet->tcp_flags) {
5670 ds_put_cstr(&ds, ", flags:");
5671 packet_format_tcp_flags(&ds, subfacet->facet->tcp_flags);
5674 ds_put_cstr(&ds, ", actions:");
5675 if (facet->xout.slow) {
5676 uint64_t slow_path_stub[128 / 8];
5677 const struct nlattr *actions;
5680 compose_slow_path(ofproto, &facet->flow, facet->xout.slow,
5681 slow_path_stub, sizeof slow_path_stub,
5682 &actions, &actions_len);
5683 format_odp_actions(&ds, actions, actions_len);
5685 format_odp_actions(&ds, facet->xout.odp_actions.data,
5686 facet->xout.odp_actions.size);
5688 ds_put_char(&ds, '\n');
5691 unixctl_command_reply(conn, ds_cstr(&ds));
5696 ofproto_unixctl_dpif_del_flows(struct unixctl_conn *conn,
5697 int argc OVS_UNUSED, const char *argv[],
5698 void *aux OVS_UNUSED)
5700 struct ds ds = DS_EMPTY_INITIALIZER;
5701 struct ofproto_dpif *ofproto;
5703 ofproto = ofproto_dpif_lookup(argv[1]);
5705 unixctl_command_reply_error(conn, "no such bridge");
5709 flush(&ofproto->up);
5711 unixctl_command_reply(conn, ds_cstr(&ds));
5716 ofproto_dpif_unixctl_init(void)
5718 static bool registered;
5724 unixctl_command_register(
5726 "[dp_name]|bridge odp_flow|br_flow [-generate|packet]",
5727 1, 3, ofproto_unixctl_trace, NULL);
5728 unixctl_command_register("fdb/flush", "[bridge]", 0, 1,
5729 ofproto_unixctl_fdb_flush, NULL);
5730 unixctl_command_register("fdb/show", "bridge", 1, 1,
5731 ofproto_unixctl_fdb_show, NULL);
5732 unixctl_command_register("ofproto/self-check", "[bridge]", 0, 1,
5733 ofproto_dpif_self_check, NULL);
5734 unixctl_command_register("dpif/dump-dps", "", 0, 0,
5735 ofproto_unixctl_dpif_dump_dps, NULL);
5736 unixctl_command_register("dpif/show", "", 0, 0, ofproto_unixctl_dpif_show,
5738 unixctl_command_register("dpif/dump-flows", "bridge", 1, 1,
5739 ofproto_unixctl_dpif_dump_flows, NULL);
5740 unixctl_command_register("dpif/del-flows", "bridge", 1, 1,
5741 ofproto_unixctl_dpif_del_flows, NULL);
5742 unixctl_command_register("dpif/dump-megaflows", "bridge", 1, 1,
5743 ofproto_unixctl_dpif_dump_megaflows, NULL);
5744 unixctl_command_register("dpif/disable-megaflows", "", 0, 0,
5745 ofproto_unixctl_dpif_disable_megaflows, NULL);
5746 unixctl_command_register("dpif/enable-megaflows", "", 0, 0,
5747 ofproto_unixctl_dpif_enable_megaflows, NULL);
5750 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
5752 * This is deprecated. It is only for compatibility with broken device drivers
5753 * in old versions of Linux that do not properly support VLANs when VLAN
5754 * devices are not used. When broken device drivers are no longer in
5755 * widespread use, we will delete these interfaces. */
5758 set_realdev(struct ofport *ofport_, ofp_port_t realdev_ofp_port, int vid)
5760 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto);
5761 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
5763 if (realdev_ofp_port == ofport->realdev_ofp_port
5764 && vid == ofport->vlandev_vid) {
5768 ofproto->backer->need_revalidate = REV_RECONFIGURE;
5770 if (ofport->realdev_ofp_port) {
5773 if (realdev_ofp_port && ofport->bundle) {
5774 /* vlandevs are enslaved to their realdevs, so they are not allowed to
5775 * themselves be part of a bundle. */
5776 bundle_set(ofport->up.ofproto, ofport->bundle, NULL);
5779 ofport->realdev_ofp_port = realdev_ofp_port;
5780 ofport->vlandev_vid = vid;
5782 if (realdev_ofp_port) {
5783 vsp_add(ofport, realdev_ofp_port, vid);
5790 hash_realdev_vid(ofp_port_t realdev_ofp_port, int vid)
5792 return hash_2words(ofp_to_u16(realdev_ofp_port), vid);
5796 ofproto_has_vlan_splinters(const struct ofproto_dpif *ofproto)
5797 OVS_EXCLUDED(ofproto->vsp_mutex)
5801 ovs_mutex_lock(&ofproto->vsp_mutex);
5802 ret = !hmap_is_empty(&ofproto->realdev_vid_map);
5803 ovs_mutex_unlock(&ofproto->vsp_mutex);
5808 vsp_realdev_to_vlandev__(const struct ofproto_dpif *ofproto,
5809 ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
5810 OVS_REQUIRES(ofproto->vsp_mutex)
5812 if (!hmap_is_empty(&ofproto->realdev_vid_map)) {
5813 int vid = vlan_tci_to_vid(vlan_tci);
5814 const struct vlan_splinter *vsp;
5816 HMAP_FOR_EACH_WITH_HASH (vsp, realdev_vid_node,
5817 hash_realdev_vid(realdev_ofp_port, vid),
5818 &ofproto->realdev_vid_map) {
5819 if (vsp->realdev_ofp_port == realdev_ofp_port
5820 && vsp->vid == vid) {
5821 return vsp->vlandev_ofp_port;
5825 return realdev_ofp_port;
5828 /* Returns the OFP port number of the Linux VLAN device that corresponds to
5829 * 'vlan_tci' on the network device with port number 'realdev_ofp_port' in
5830 * 'struct ofport_dpif'. For example, given 'realdev_ofp_port' of eth0 and
5831 * 'vlan_tci' 9, it would return the port number of eth0.9.
5833 * Unless VLAN splinters are enabled for port 'realdev_ofp_port', this
5834 * function just returns its 'realdev_ofp_port' argument. */
5836 vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto,
5837 ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
5838 OVS_EXCLUDED(ofproto->vsp_mutex)
5842 ovs_mutex_lock(&ofproto->vsp_mutex);
5843 ret = vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, vlan_tci);
5844 ovs_mutex_unlock(&ofproto->vsp_mutex);
5848 static struct vlan_splinter *
5849 vlandev_find(const struct ofproto_dpif *ofproto, ofp_port_t vlandev_ofp_port)
5851 struct vlan_splinter *vsp;
5853 HMAP_FOR_EACH_WITH_HASH (vsp, vlandev_node,
5854 hash_ofp_port(vlandev_ofp_port),
5855 &ofproto->vlandev_map) {
5856 if (vsp->vlandev_ofp_port == vlandev_ofp_port) {
5864 /* Returns the OpenFlow port number of the "real" device underlying the Linux
5865 * VLAN device with OpenFlow port number 'vlandev_ofp_port' and stores the
5866 * VLAN VID of the Linux VLAN device in '*vid'. For example, given
5867 * 'vlandev_ofp_port' of eth0.9, it would return the OpenFlow port number of
5868 * eth0 and store 9 in '*vid'.
5870 * Returns 0 and does not modify '*vid' if 'vlandev_ofp_port' is not a Linux
5871 * VLAN device. Unless VLAN splinters are enabled, this is what this function
5874 vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto,
5875 ofp_port_t vlandev_ofp_port, int *vid)
5876 OVS_REQUIRES(ofproto->vsp_mutex)
5878 if (!hmap_is_empty(&ofproto->vlandev_map)) {
5879 const struct vlan_splinter *vsp;
5881 vsp = vlandev_find(ofproto, vlandev_ofp_port);
5886 return vsp->realdev_ofp_port;
5892 /* Given 'flow', a flow representing a packet received on 'ofproto', checks
5893 * whether 'flow->in_port' represents a Linux VLAN device. If so, changes
5894 * 'flow->in_port' to the "real" device backing the VLAN device, sets
5895 * 'flow->vlan_tci' to the VLAN VID, and returns true. Otherwise (which is
5896 * always the case unless VLAN splinters are enabled), returns false without
5897 * making any changes. */
5899 vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow)
5900 OVS_EXCLUDED(ofproto->vsp_mutex)
5905 ovs_mutex_lock(&ofproto->vsp_mutex);
5906 realdev = vsp_vlandev_to_realdev(ofproto, flow->in_port.ofp_port, &vid);
5907 ovs_mutex_unlock(&ofproto->vsp_mutex);
5912 /* Cause the flow to be processed as if it came in on the real device with
5913 * the VLAN device's VLAN ID. */
5914 flow->in_port.ofp_port = realdev;
5915 flow->vlan_tci = htons((vid & VLAN_VID_MASK) | VLAN_CFI);
5920 vsp_remove(struct ofport_dpif *port)
5922 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
5923 struct vlan_splinter *vsp;
5925 ovs_mutex_lock(&ofproto->vsp_mutex);
5926 vsp = vlandev_find(ofproto, port->up.ofp_port);
5928 hmap_remove(&ofproto->vlandev_map, &vsp->vlandev_node);
5929 hmap_remove(&ofproto->realdev_vid_map, &vsp->realdev_vid_node);
5932 port->realdev_ofp_port = 0;
5934 VLOG_ERR("missing vlan device record");
5936 ovs_mutex_unlock(&ofproto->vsp_mutex);
5940 vsp_add(struct ofport_dpif *port, ofp_port_t realdev_ofp_port, int vid)
5942 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
5944 ovs_mutex_lock(&ofproto->vsp_mutex);
5945 if (!vsp_vlandev_to_realdev(ofproto, port->up.ofp_port, NULL)
5946 && (vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, htons(vid))
5947 == realdev_ofp_port)) {
5948 struct vlan_splinter *vsp;
5950 vsp = xmalloc(sizeof *vsp);
5951 vsp->realdev_ofp_port = realdev_ofp_port;
5952 vsp->vlandev_ofp_port = port->up.ofp_port;
5955 port->realdev_ofp_port = realdev_ofp_port;
5957 hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node,
5958 hash_ofp_port(port->up.ofp_port));
5959 hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node,
5960 hash_realdev_vid(realdev_ofp_port, vid));
5962 VLOG_ERR("duplicate vlan device record");
5964 ovs_mutex_unlock(&ofproto->vsp_mutex);
5968 ofp_port_to_odp_port(const struct ofproto_dpif *ofproto, ofp_port_t ofp_port)
5970 const struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port);
5971 return ofport ? ofport->odp_port : ODPP_NONE;
5974 struct ofport_dpif *
5975 odp_port_to_ofport(const struct dpif_backer *backer, odp_port_t odp_port)
5977 struct ofport_dpif *port;
5979 ovs_rwlock_rdlock(&backer->odp_to_ofport_lock);
5980 HMAP_FOR_EACH_IN_BUCKET (port, odp_port_node, hash_odp_port(odp_port),
5981 &backer->odp_to_ofport_map) {
5982 if (port->odp_port == odp_port) {
5983 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
5988 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
5993 odp_port_to_ofp_port(const struct ofproto_dpif *ofproto, odp_port_t odp_port)
5995 struct ofport_dpif *port;
5997 port = odp_port_to_ofport(ofproto->backer, odp_port);
5998 if (port && &ofproto->up == port->up.ofproto) {
5999 return port->up.ofp_port;
6005 const struct ofproto_class ofproto_dpif_class = {
6040 port_is_lacp_current,
6041 NULL, /* rule_choose_table */
6050 rule_modify_actions,
6064 get_stp_port_status,
6071 is_mirror_output_bundle,
6072 forward_bpdu_changed,
6073 set_mac_table_config,
6075 NULL, /* meter_get_features */
6076 NULL, /* meter_set */
6077 NULL, /* meter_get */
6078 NULL, /* meter_del */
6079 NULL, /* group_alloc */
6080 NULL, /* group_construct */
6081 NULL, /* group_destruct */
6082 NULL, /* group_dealloc */
6083 NULL, /* group_modify */
6084 NULL, /* group_get_stats */