2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 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"
28 #include "connectivity.h"
33 #include "dynamic-string.h"
34 #include "fail-open.h"
35 #include "guarded-list.h"
39 #include "mac-learning.h"
40 #include "meta-flow.h"
41 #include "multipath.h"
42 #include "netdev-vport.h"
47 #include "odp-execute.h"
50 #include "ofp-actions.h"
51 #include "ofp-parse.h"
52 #include "ofp-print.h"
53 #include "ofproto-dpif-ipfix.h"
54 #include "ofproto-dpif-mirror.h"
55 #include "ofproto-dpif-monitor.h"
56 #include "ofproto-dpif-rid.h"
57 #include "ofproto-dpif-sflow.h"
58 #include "ofproto-dpif-upcall.h"
59 #include "ofproto-dpif-xlate.h"
60 #include "poll-loop.h"
66 #include "unaligned.h"
68 #include "vlan-bitmap.h"
71 VLOG_DEFINE_THIS_MODULE(ofproto_dpif);
73 COVERAGE_DEFINE(ofproto_dpif_expired);
74 COVERAGE_DEFINE(packet_in_overflow);
76 /* No bfd/cfm status change. */
77 #define NO_STATUS_CHANGE -1
86 * - Do include packets and bytes from datapath flows which have not
87 * recently been processed by a revalidator. */
88 struct ovs_mutex stats_mutex;
89 struct dpif_flow_stats stats OVS_GUARDED;
92 /* RULE_CAST() depends on this. */
93 BUILD_ASSERT_DECL(offsetof(struct rule_dpif, up) == 0);
95 static void rule_get_stats(struct rule *, uint64_t *packets, uint64_t *bytes,
97 static struct rule_dpif *rule_dpif_cast(const struct rule *);
98 static void rule_expire(struct rule_dpif *);
105 * - Do include packets and bytes from datapath flows which have not
106 * recently been processed by a revalidator. */
107 struct ovs_mutex stats_mutex;
108 uint64_t packet_count OVS_GUARDED; /* Number of packets received. */
109 uint64_t byte_count OVS_GUARDED; /* Number of bytes received. */
110 struct bucket_counter *bucket_stats OVS_GUARDED; /* Bucket statistics. */
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 *);
146 struct hmap_node odp_port_node; /* In dpif_backer's "odp_to_ofport_map". */
150 struct ofbundle *bundle; /* Bundle that contains this port, if any. */
151 struct list bundle_node; /* In struct ofbundle's "ports" list. */
152 struct cfm *cfm; /* Connectivity Fault Management, if any. */
153 struct bfd *bfd; /* BFD, if any. */
154 bool may_enable; /* May be enabled in bonds. */
155 bool is_tunnel; /* This port is a tunnel. */
156 bool is_layer3; /* This is a layer 3 port. */
157 long long int carrier_seq; /* Carrier status changes. */
158 struct ofport_dpif *peer; /* Peer if patch port. */
161 struct stp_port *stp_port; /* Spanning Tree Protocol, if any. */
162 enum stp_state stp_state; /* Always STP_DISABLED if STP not in use. */
163 long long int stp_state_entered;
165 /* Queue to DSCP mapping. */
166 struct ofproto_port_queue *qdscp;
169 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
171 * This is deprecated. It is only for compatibility with broken device
172 * drivers in old versions of Linux that do not properly support VLANs when
173 * VLAN devices are not used. When broken device drivers are no longer in
174 * widespread use, we will delete these interfaces. */
175 ofp_port_t realdev_ofp_port;
179 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
181 * This is deprecated. It is only for compatibility with broken device drivers
182 * in old versions of Linux that do not properly support VLANs when VLAN
183 * devices are not used. When broken device drivers are no longer in
184 * widespread use, we will delete these interfaces. */
185 struct vlan_splinter {
186 struct hmap_node realdev_vid_node;
187 struct hmap_node vlandev_node;
188 ofp_port_t realdev_ofp_port;
189 ofp_port_t vlandev_ofp_port;
193 static void vsp_remove(struct ofport_dpif *);
194 static void vsp_add(struct ofport_dpif *, ofp_port_t realdev_ofp_port, int vid);
196 static odp_port_t ofp_port_to_odp_port(const struct ofproto_dpif *,
199 static ofp_port_t odp_port_to_ofp_port(const struct ofproto_dpif *,
202 static struct ofport_dpif *
203 ofport_dpif_cast(const struct ofport *ofport)
205 return ofport ? CONTAINER_OF(ofport, struct ofport_dpif, up) : NULL;
208 static void port_run(struct ofport_dpif *);
209 static int set_bfd(struct ofport *, const struct smap *);
210 static int set_cfm(struct ofport *, const struct cfm_settings *);
211 static void ofport_update_peer(struct ofport_dpif *);
213 struct dpif_completion {
214 struct list list_node;
215 struct ofoperation *op;
218 /* Reasons that we might need to revalidate every datapath flow, and
219 * corresponding coverage counters.
221 * A value of 0 means that there is no need to revalidate.
223 * It would be nice to have some cleaner way to integrate with coverage
224 * counters, but with only a few reasons I guess this is good enough for
226 enum revalidate_reason {
227 REV_RECONFIGURE = 1, /* Switch configuration changed. */
228 REV_STP, /* Spanning tree protocol port status change. */
229 REV_BOND, /* Bonding changed. */
230 REV_PORT_TOGGLED, /* Port enabled or disabled by CFM, LACP, ...*/
231 REV_FLOW_TABLE, /* Flow table changed. */
232 REV_MAC_LEARNING, /* Mac learning changed. */
234 COVERAGE_DEFINE(rev_reconfigure);
235 COVERAGE_DEFINE(rev_stp);
236 COVERAGE_DEFINE(rev_bond);
237 COVERAGE_DEFINE(rev_port_toggled);
238 COVERAGE_DEFINE(rev_flow_table);
239 COVERAGE_DEFINE(rev_mac_learning);
241 /* All datapaths of a given type share a single dpif backer instance. */
248 struct ovs_rwlock odp_to_ofport_lock;
249 struct hmap odp_to_ofport_map OVS_GUARDED; /* Contains "struct ofport"s. */
251 struct simap tnl_backers; /* Set of dpif ports backing tunnels. */
253 enum revalidate_reason need_revalidate; /* Revalidate all flows. */
255 bool recv_set_enable; /* Enables or disables receiving packets. */
258 struct recirc_id_pool *rid_pool; /* Recirculation ID pool. */
259 bool enable_recirc; /* True if the datapath supports recirculation */
261 /* True if the datapath supports variable-length
262 * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions.
263 * False if the datapath supports only 8-byte (or shorter) userdata. */
264 bool variable_length_userdata;
266 /* Maximum number of MPLS label stack entries that the datapath supports
268 size_t max_mpls_depth;
271 /* All existing ofproto_backer instances, indexed by ofproto->up.type. */
272 static struct shash all_dpif_backers = SHASH_INITIALIZER(&all_dpif_backers);
274 struct ofproto_dpif {
275 struct hmap_node all_ofproto_dpifs_node; /* In 'all_ofproto_dpifs'. */
277 struct dpif_backer *backer;
279 uint64_t dump_seq; /* Last read of udpif_dump_seq(). */
281 /* Special OpenFlow rules. */
282 struct rule_dpif *miss_rule; /* Sends flow table misses to controller. */
283 struct rule_dpif *no_packet_in_rule; /* Drops flow table misses. */
284 struct rule_dpif *drop_frags_rule; /* Used in OFPC_FRAG_DROP mode. */
287 struct netflow *netflow;
288 struct dpif_sflow *sflow;
289 struct dpif_ipfix *ipfix;
290 struct hmap bundles; /* Contains "struct ofbundle"s. */
291 struct mac_learning *ml;
292 bool has_bonded_bundles;
294 struct mbridge *mbridge;
296 struct ovs_mutex stats_mutex;
297 struct netdev_stats stats OVS_GUARDED; /* To account packets generated and
298 * consumed in userspace. */
302 long long int stp_last_tick;
304 /* VLAN splinters. */
305 struct ovs_mutex vsp_mutex;
306 struct hmap realdev_vid_map OVS_GUARDED; /* (realdev,vid) -> vlandev. */
307 struct hmap vlandev_map OVS_GUARDED; /* vlandev -> (realdev,vid). */
310 struct sset ports; /* Set of standard port names. */
311 struct sset ghost_ports; /* Ports with no datapath port. */
312 struct sset port_poll_set; /* Queued names for port_poll() reply. */
313 int port_poll_errno; /* Last errno for port_poll() reply. */
314 uint64_t change_seq; /* Connectivity status changes. */
317 struct guarded_list pins; /* Contains "struct ofputil_packet_in"s. */
318 struct seq *pins_seq; /* For notifying 'pins' reception. */
322 /* All existing ofproto_dpif instances, indexed by ->up.name. */
323 static struct hmap all_ofproto_dpifs = HMAP_INITIALIZER(&all_ofproto_dpifs);
325 static void ofproto_dpif_unixctl_init(void);
327 static inline struct ofproto_dpif *
328 ofproto_dpif_cast(const struct ofproto *ofproto)
330 ovs_assert(ofproto->ofproto_class == &ofproto_dpif_class);
331 return CONTAINER_OF(ofproto, struct ofproto_dpif, up);
335 ofproto_dpif_get_max_mpls_depth(const struct ofproto_dpif *ofproto)
337 return ofproto->backer->max_mpls_depth;
341 ofproto_dpif_get_enable_recirc(const struct ofproto_dpif *ofproto)
343 return ofproto->backer->enable_recirc;
346 static struct ofport_dpif *get_ofp_port(const struct ofproto_dpif *ofproto,
347 ofp_port_t ofp_port);
348 static void ofproto_trace(struct ofproto_dpif *, struct flow *,
349 const struct ofpbuf *packet,
350 const struct ofpact[], size_t ofpacts_len,
353 /* Global variables. */
354 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
356 /* Initial mappings of port to bridge mappings. */
357 static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports);
359 /* Executes 'fm'. The caller retains ownership of 'fm' and everything in
362 ofproto_dpif_flow_mod(struct ofproto_dpif *ofproto,
363 struct ofputil_flow_mod *fm)
365 ofproto_flow_mod(&ofproto->up, fm);
368 /* Resets the modified time for 'rule' or an equivalent rule. If 'rule' is not
369 * in the classifier, but an equivalent rule is, unref 'rule' and ref the new
370 * rule. Otherwise if 'rule' is no longer installed in the classifier,
373 * Returns the rule whose modified time has been reset. */
375 ofproto_dpif_refresh_rule(struct rule_dpif *rule)
377 return rule_dpif_cast(ofproto_refresh_rule(&rule->up));
380 /* Appends 'pin' to the queue of "packet ins" to be sent to the controller.
381 * Takes ownership of 'pin' and pin->packet. */
383 ofproto_dpif_send_packet_in(struct ofproto_dpif *ofproto,
384 struct ofproto_packet_in *pin)
386 if (!guarded_list_push_back(&ofproto->pins, &pin->list_node, 1024)) {
387 COVERAGE_INC(packet_in_overflow);
388 free(CONST_CAST(void *, pin->up.packet));
392 /* Wakes up main thread for packet-in I/O. */
393 seq_change(ofproto->pins_seq);
396 /* The default "table-miss" behaviour for OpenFlow1.3+ is to drop the
397 * packet rather than to send the packet to the controller.
399 * This function returns false to indicate that a packet_in message
400 * for a "table-miss" should be sent to at least one controller.
401 * False otherwise. */
403 ofproto_dpif_wants_packet_in_on_miss(struct ofproto_dpif *ofproto)
405 return connmgr_wants_packet_in_on_miss(ofproto->up.connmgr);
408 /* Factory functions. */
411 init(const struct shash *iface_hints)
413 struct shash_node *node;
415 /* Make a local copy, since we don't own 'iface_hints' elements. */
416 SHASH_FOR_EACH(node, iface_hints) {
417 const struct iface_hint *orig_hint = node->data;
418 struct iface_hint *new_hint = xmalloc(sizeof *new_hint);
420 new_hint->br_name = xstrdup(orig_hint->br_name);
421 new_hint->br_type = xstrdup(orig_hint->br_type);
422 new_hint->ofp_port = orig_hint->ofp_port;
424 shash_add(&init_ofp_ports, node->name, new_hint);
429 enumerate_types(struct sset *types)
431 dp_enumerate_types(types);
435 enumerate_names(const char *type, struct sset *names)
437 struct ofproto_dpif *ofproto;
440 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
441 if (strcmp(type, ofproto->up.type)) {
444 sset_add(names, ofproto->up.name);
451 del(const char *type, const char *name)
456 error = dpif_open(name, type, &dpif);
458 error = dpif_delete(dpif);
465 port_open_type(const char *datapath_type, const char *port_type)
467 return dpif_port_open_type(datapath_type, port_type);
470 /* Type functions. */
472 static void process_dpif_port_changes(struct dpif_backer *);
473 static void process_dpif_all_ports_changed(struct dpif_backer *);
474 static void process_dpif_port_change(struct dpif_backer *,
475 const char *devname);
476 static void process_dpif_port_error(struct dpif_backer *, int error);
478 static struct ofproto_dpif *
479 lookup_ofproto_dpif_by_port_name(const char *name)
481 struct ofproto_dpif *ofproto;
483 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
484 if (sset_contains(&ofproto->ports, name)) {
493 type_run(const char *type)
495 struct dpif_backer *backer;
497 backer = shash_find_data(&all_dpif_backers, type);
499 /* This is not necessarily a problem, since backers are only
500 * created on demand. */
504 dpif_run(backer->dpif);
506 /* If vswitchd started with other_config:flow_restore_wait set as "true",
507 * and the configuration has now changed to "false", enable receiving
508 * packets from the datapath. */
509 if (!backer->recv_set_enable && !ofproto_get_flow_restore_wait()) {
512 backer->recv_set_enable = true;
514 error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
516 VLOG_ERR("Failed to enable receiving packets in dpif.");
519 dpif_flow_flush(backer->dpif);
520 backer->need_revalidate = REV_RECONFIGURE;
523 if (backer->recv_set_enable) {
524 udpif_set_threads(backer->udpif, n_handlers, n_revalidators);
527 if (backer->need_revalidate) {
528 struct ofproto_dpif *ofproto;
529 struct simap_node *node;
530 struct simap tmp_backers;
532 /* Handle tunnel garbage collection. */
533 simap_init(&tmp_backers);
534 simap_swap(&backer->tnl_backers, &tmp_backers);
536 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
537 struct ofport_dpif *iter;
539 if (backer != ofproto->backer) {
543 HMAP_FOR_EACH (iter, up.hmap_node, &ofproto->up.ports) {
544 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
547 if (!iter->is_tunnel) {
551 dp_port = netdev_vport_get_dpif_port(iter->up.netdev,
552 namebuf, sizeof namebuf);
553 node = simap_find(&tmp_backers, dp_port);
555 simap_put(&backer->tnl_backers, dp_port, node->data);
556 simap_delete(&tmp_backers, node);
557 node = simap_find(&backer->tnl_backers, dp_port);
559 node = simap_find(&backer->tnl_backers, dp_port);
561 odp_port_t odp_port = ODPP_NONE;
563 if (!dpif_port_add(backer->dpif, iter->up.netdev,
565 simap_put(&backer->tnl_backers, dp_port,
566 odp_to_u32(odp_port));
567 node = simap_find(&backer->tnl_backers, dp_port);
572 iter->odp_port = node ? u32_to_odp(node->data) : ODPP_NONE;
573 if (tnl_port_reconfigure(iter, iter->up.netdev,
575 backer->need_revalidate = REV_RECONFIGURE;
580 SIMAP_FOR_EACH (node, &tmp_backers) {
581 dpif_port_del(backer->dpif, u32_to_odp(node->data));
583 simap_destroy(&tmp_backers);
585 switch (backer->need_revalidate) {
586 case REV_RECONFIGURE: COVERAGE_INC(rev_reconfigure); break;
587 case REV_STP: COVERAGE_INC(rev_stp); break;
588 case REV_BOND: COVERAGE_INC(rev_bond); break;
589 case REV_PORT_TOGGLED: COVERAGE_INC(rev_port_toggled); break;
590 case REV_FLOW_TABLE: COVERAGE_INC(rev_flow_table); break;
591 case REV_MAC_LEARNING: COVERAGE_INC(rev_mac_learning); break;
593 backer->need_revalidate = 0;
595 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
596 struct ofport_dpif *ofport;
597 struct ofbundle *bundle;
599 if (ofproto->backer != backer) {
603 ovs_rwlock_wrlock(&xlate_rwlock);
604 xlate_ofproto_set(ofproto, ofproto->up.name,
605 ofproto->backer->dpif, ofproto->miss_rule,
606 ofproto->no_packet_in_rule, ofproto->ml,
607 ofproto->stp, ofproto->mbridge,
608 ofproto->sflow, ofproto->ipfix,
609 ofproto->netflow, ofproto->up.frag_handling,
610 ofproto->up.forward_bpdu,
611 connmgr_has_in_band(ofproto->up.connmgr),
612 ofproto->backer->enable_recirc,
613 ofproto->backer->variable_length_userdata,
614 ofproto->backer->max_mpls_depth);
616 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
617 xlate_bundle_set(ofproto, bundle, bundle->name,
618 bundle->vlan_mode, bundle->vlan,
619 bundle->trunks, bundle->use_priority_tags,
620 bundle->bond, bundle->lacp,
624 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
625 int stp_port = ofport->stp_port
626 ? stp_port_no(ofport->stp_port)
628 xlate_ofport_set(ofproto, ofport->bundle, ofport,
629 ofport->up.ofp_port, ofport->odp_port,
630 ofport->up.netdev, ofport->cfm,
631 ofport->bfd, ofport->peer, stp_port,
632 ofport->qdscp, ofport->n_qdscp,
633 ofport->up.pp.config, ofport->up.pp.state,
634 ofport->is_tunnel, ofport->may_enable);
636 ovs_rwlock_unlock(&xlate_rwlock);
639 udpif_revalidate(backer->udpif);
642 process_dpif_port_changes(backer);
647 /* Check for and handle port changes in 'backer''s dpif. */
649 process_dpif_port_changes(struct dpif_backer *backer)
655 error = dpif_port_poll(backer->dpif, &devname);
661 process_dpif_all_ports_changed(backer);
665 process_dpif_port_change(backer, devname);
670 process_dpif_port_error(backer, error);
677 process_dpif_all_ports_changed(struct dpif_backer *backer)
679 struct ofproto_dpif *ofproto;
680 struct dpif_port dpif_port;
681 struct dpif_port_dump dump;
682 struct sset devnames;
685 sset_init(&devnames);
686 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
687 if (ofproto->backer == backer) {
688 struct ofport *ofport;
690 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
691 sset_add(&devnames, netdev_get_name(ofport->netdev));
695 DPIF_PORT_FOR_EACH (&dpif_port, &dump, backer->dpif) {
696 sset_add(&devnames, dpif_port.name);
699 SSET_FOR_EACH (devname, &devnames) {
700 process_dpif_port_change(backer, devname);
702 sset_destroy(&devnames);
706 process_dpif_port_change(struct dpif_backer *backer, const char *devname)
708 struct ofproto_dpif *ofproto;
709 struct dpif_port port;
711 /* Don't report on the datapath's device. */
712 if (!strcmp(devname, dpif_base_name(backer->dpif))) {
716 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node,
717 &all_ofproto_dpifs) {
718 if (simap_contains(&ofproto->backer->tnl_backers, devname)) {
723 ofproto = lookup_ofproto_dpif_by_port_name(devname);
724 if (dpif_port_query_by_name(backer->dpif, devname, &port)) {
725 /* The port was removed. If we know the datapath,
726 * report it through poll_set(). If we don't, it may be
727 * notifying us of a removal we initiated, so ignore it.
728 * If there's a pending ENOBUFS, let it stand, since
729 * everything will be reevaluated. */
730 if (ofproto && ofproto->port_poll_errno != ENOBUFS) {
731 sset_add(&ofproto->port_poll_set, devname);
732 ofproto->port_poll_errno = 0;
734 } else if (!ofproto) {
735 /* The port was added, but we don't know with which
736 * ofproto we should associate it. Delete it. */
737 dpif_port_del(backer->dpif, port.port_no);
739 struct ofport_dpif *ofport;
741 ofport = ofport_dpif_cast(shash_find_data(
742 &ofproto->up.port_by_name, devname));
744 && ofport->odp_port != port.port_no
745 && !odp_port_to_ofport(backer, port.port_no))
747 /* 'ofport''s datapath port number has changed from
748 * 'ofport->odp_port' to 'port.port_no'. Update our internal data
749 * structures to match. */
750 ovs_rwlock_wrlock(&backer->odp_to_ofport_lock);
751 hmap_remove(&backer->odp_to_ofport_map, &ofport->odp_port_node);
752 ofport->odp_port = port.port_no;
753 hmap_insert(&backer->odp_to_ofport_map, &ofport->odp_port_node,
754 hash_odp_port(port.port_no));
755 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
756 backer->need_revalidate = REV_RECONFIGURE;
759 dpif_port_destroy(&port);
762 /* Propagate 'error' to all ofprotos based on 'backer'. */
764 process_dpif_port_error(struct dpif_backer *backer, int error)
766 struct ofproto_dpif *ofproto;
768 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
769 if (ofproto->backer == backer) {
770 sset_clear(&ofproto->port_poll_set);
771 ofproto->port_poll_errno = error;
777 type_wait(const char *type)
779 struct dpif_backer *backer;
781 backer = shash_find_data(&all_dpif_backers, type);
783 /* This is not necessarily a problem, since backers are only
784 * created on demand. */
788 dpif_wait(backer->dpif);
791 /* Basic life-cycle. */
793 static int add_internal_flows(struct ofproto_dpif *);
795 static struct ofproto *
798 struct ofproto_dpif *ofproto = xmalloc(sizeof *ofproto);
803 dealloc(struct ofproto *ofproto_)
805 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
810 close_dpif_backer(struct dpif_backer *backer)
812 ovs_assert(backer->refcount > 0);
814 if (--backer->refcount) {
818 udpif_destroy(backer->udpif);
820 simap_destroy(&backer->tnl_backers);
821 ovs_rwlock_destroy(&backer->odp_to_ofport_lock);
822 hmap_destroy(&backer->odp_to_ofport_map);
823 shash_find_and_delete(&all_dpif_backers, backer->type);
824 recirc_id_pool_destroy(backer->rid_pool);
826 dpif_close(backer->dpif);
830 /* Datapath port slated for removal from datapath. */
832 struct list list_node;
836 static bool check_variable_length_userdata(struct dpif_backer *backer);
837 static size_t check_max_mpls_depth(struct dpif_backer *backer);
838 static bool check_recirc(struct dpif_backer *backer);
841 open_dpif_backer(const char *type, struct dpif_backer **backerp)
843 struct dpif_backer *backer;
844 struct dpif_port_dump port_dump;
845 struct dpif_port port;
846 struct shash_node *node;
847 struct list garbage_list;
848 struct odp_garbage *garbage, *next;
855 backer = shash_find_data(&all_dpif_backers, type);
862 backer_name = xasprintf("ovs-%s", type);
864 /* Remove any existing datapaths, since we assume we're the only
865 * userspace controlling the datapath. */
867 dp_enumerate_names(type, &names);
868 SSET_FOR_EACH(name, &names) {
869 struct dpif *old_dpif;
871 /* Don't remove our backer if it exists. */
872 if (!strcmp(name, backer_name)) {
876 if (dpif_open(name, type, &old_dpif)) {
877 VLOG_WARN("couldn't open old datapath %s to remove it", name);
879 dpif_delete(old_dpif);
880 dpif_close(old_dpif);
883 sset_destroy(&names);
885 backer = xmalloc(sizeof *backer);
887 error = dpif_create_and_open(backer_name, type, &backer->dpif);
890 VLOG_ERR("failed to open datapath of type %s: %s", type,
891 ovs_strerror(error));
895 backer->udpif = udpif_create(backer, backer->dpif);
897 backer->type = xstrdup(type);
898 backer->refcount = 1;
899 hmap_init(&backer->odp_to_ofport_map);
900 ovs_rwlock_init(&backer->odp_to_ofport_lock);
901 backer->need_revalidate = 0;
902 simap_init(&backer->tnl_backers);
903 backer->recv_set_enable = !ofproto_get_flow_restore_wait();
906 if (backer->recv_set_enable) {
907 dpif_flow_flush(backer->dpif);
910 /* Loop through the ports already on the datapath and remove any
911 * that we don't need anymore. */
912 list_init(&garbage_list);
913 dpif_port_dump_start(&port_dump, backer->dpif);
914 while (dpif_port_dump_next(&port_dump, &port)) {
915 node = shash_find(&init_ofp_ports, port.name);
916 if (!node && strcmp(port.name, dpif_base_name(backer->dpif))) {
917 garbage = xmalloc(sizeof *garbage);
918 garbage->odp_port = port.port_no;
919 list_push_front(&garbage_list, &garbage->list_node);
922 dpif_port_dump_done(&port_dump);
924 LIST_FOR_EACH_SAFE (garbage, next, list_node, &garbage_list) {
925 dpif_port_del(backer->dpif, garbage->odp_port);
926 list_remove(&garbage->list_node);
930 shash_add(&all_dpif_backers, type, backer);
932 error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
934 VLOG_ERR("failed to listen on datapath of type %s: %s",
935 type, ovs_strerror(error));
936 close_dpif_backer(backer);
939 backer->enable_recirc = check_recirc(backer);
940 backer->variable_length_userdata = check_variable_length_userdata(backer);
941 backer->max_mpls_depth = check_max_mpls_depth(backer);
942 backer->rid_pool = recirc_id_pool_create();
944 if (backer->recv_set_enable) {
945 udpif_set_threads(backer->udpif, n_handlers, n_revalidators);
951 /* Tests whether 'backer''s datapath supports recirculation Only newer datapath
952 * supports OVS_KEY_ATTR in OVS_ACTION_ATTR_USERSPACE actions. We need to
953 * disable some features on older datapaths that don't support this feature.
955 * Returns false if 'backer' definitely does not support recirculation, true if
956 * it seems to support recirculation or if at least the error we get is
959 check_recirc(struct dpif_backer *backer)
962 struct odputil_keybuf keybuf;
965 bool enable_recirc = false;
967 memset(&flow, 0, sizeof flow);
971 ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
972 odp_flow_key_from_flow(&key, &flow, NULL, 0);
974 error = dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY,
975 ofpbuf_data(&key), ofpbuf_size(&key), NULL, 0, NULL,
977 if (error && error != EEXIST) {
978 if (error != EINVAL) {
979 VLOG_WARN("%s: Reciculation flow probe failed (%s)",
980 dpif_name(backer->dpif), ovs_strerror(error));
985 error = dpif_flow_del(backer->dpif, ofpbuf_data(&key), ofpbuf_size(&key),
988 VLOG_WARN("%s: failed to delete recirculation feature probe flow",
989 dpif_name(backer->dpif));
992 enable_recirc = true;
996 VLOG_INFO("%s: Datapath supports recirculation",
997 dpif_name(backer->dpif));
999 VLOG_INFO("%s: Datapath does not support recirculation",
1000 dpif_name(backer->dpif));
1003 return enable_recirc;
1006 /* Tests whether 'backer''s datapath supports variable-length
1007 * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions. We need
1008 * to disable some features on older datapaths that don't support this
1011 * Returns false if 'backer' definitely does not support variable-length
1012 * userdata, true if it seems to support them or if at least the error we get
1015 check_variable_length_userdata(struct dpif_backer *backer)
1017 struct eth_header *eth;
1018 struct ofpbuf actions;
1019 struct dpif_execute execute;
1020 struct ofpbuf packet;
1024 /* Compose a userspace action that will cause an ERANGE error on older
1025 * datapaths that don't support variable-length userdata.
1027 * We really test for using userdata longer than 8 bytes, but older
1028 * datapaths accepted these, silently truncating the userdata to 8 bytes.
1029 * The same older datapaths rejected userdata shorter than 8 bytes, so we
1030 * test for that instead as a proxy for longer userdata support. */
1031 ofpbuf_init(&actions, 64);
1032 start = nl_msg_start_nested(&actions, OVS_ACTION_ATTR_USERSPACE);
1033 nl_msg_put_u32(&actions, OVS_USERSPACE_ATTR_PID,
1034 dpif_port_get_pid(backer->dpif, ODPP_NONE, 0));
1035 nl_msg_put_unspec_zero(&actions, OVS_USERSPACE_ATTR_USERDATA, 4);
1036 nl_msg_end_nested(&actions, start);
1038 /* Compose a dummy ethernet packet. */
1039 ofpbuf_init(&packet, ETH_HEADER_LEN);
1040 eth = ofpbuf_put_zeros(&packet, ETH_HEADER_LEN);
1041 eth->eth_type = htons(0x1234);
1043 /* Execute the actions. On older datapaths this fails with ERANGE, on
1044 * newer datapaths it succeeds. */
1045 execute.actions = ofpbuf_data(&actions);
1046 execute.actions_len = ofpbuf_size(&actions);
1047 execute.packet = &packet;
1048 execute.md = PKT_METADATA_INITIALIZER(0);
1049 execute.needs_help = false;
1051 error = dpif_execute(backer->dpif, &execute);
1053 ofpbuf_uninit(&packet);
1054 ofpbuf_uninit(&actions);
1058 /* Variable-length userdata is supported.
1060 * Purge received packets to avoid processing the nonsense packet we
1061 * sent to userspace, then report success. */
1062 dpif_recv_purge(backer->dpif);
1066 /* Variable-length userdata is not supported. */
1067 VLOG_WARN("%s: datapath does not support variable-length userdata "
1068 "feature (needs Linux 3.10+ or kernel module from OVS "
1069 "1..11+). The NXAST_SAMPLE action will be ignored.",
1070 dpif_name(backer->dpif));
1074 /* Something odd happened. We're not sure whether variable-length
1075 * userdata is supported. Default to "yes". */
1076 VLOG_WARN("%s: variable-length userdata feature probe failed (%s)",
1077 dpif_name(backer->dpif), ovs_strerror(error));
1082 /* Tests the MPLS label stack depth supported by 'backer''s datapath.
1084 * Returns the number of elements in a struct flow's mpls_lse field
1085 * if the datapath supports at least that many entries in an
1087 * Otherwise returns the number of MPLS push actions supported by
1090 check_max_mpls_depth(struct dpif_backer *backer)
1095 for (n = 0; n < FLOW_MAX_MPLS_LABELS; n++) {
1096 struct odputil_keybuf keybuf;
1100 memset(&flow, 0, sizeof flow);
1101 flow.dl_type = htons(ETH_TYPE_MPLS);
1102 flow_set_mpls_bos(&flow, n, 1);
1104 ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
1105 odp_flow_key_from_flow(&key, &flow, NULL, 0);
1107 error = dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY,
1108 ofpbuf_data(&key), ofpbuf_size(&key), NULL, 0, NULL, 0, NULL);
1109 if (error && error != EEXIST) {
1110 if (error != EINVAL) {
1111 VLOG_WARN("%s: MPLS stack length feature probe failed (%s)",
1112 dpif_name(backer->dpif), ovs_strerror(error));
1117 error = dpif_flow_del(backer->dpif, ofpbuf_data(&key), ofpbuf_size(&key), NULL);
1119 VLOG_WARN("%s: failed to delete MPLS feature probe flow",
1120 dpif_name(backer->dpif));
1124 VLOG_INFO("%s: MPLS label stack length probed as %d",
1125 dpif_name(backer->dpif), n);
1130 construct(struct ofproto *ofproto_)
1132 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1133 struct shash_node *node, *next;
1136 error = open_dpif_backer(ofproto->up.type, &ofproto->backer);
1141 ofproto->netflow = NULL;
1142 ofproto->sflow = NULL;
1143 ofproto->ipfix = NULL;
1144 ofproto->stp = NULL;
1145 ofproto->dump_seq = 0;
1146 hmap_init(&ofproto->bundles);
1147 ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME);
1148 ofproto->mbridge = mbridge_create();
1149 ofproto->has_bonded_bundles = false;
1150 ofproto->lacp_enabled = false;
1151 ovs_mutex_init_adaptive(&ofproto->stats_mutex);
1152 ovs_mutex_init(&ofproto->vsp_mutex);
1154 guarded_list_init(&ofproto->pins);
1156 ofproto_dpif_unixctl_init();
1158 hmap_init(&ofproto->vlandev_map);
1159 hmap_init(&ofproto->realdev_vid_map);
1161 sset_init(&ofproto->ports);
1162 sset_init(&ofproto->ghost_ports);
1163 sset_init(&ofproto->port_poll_set);
1164 ofproto->port_poll_errno = 0;
1165 ofproto->change_seq = 0;
1166 ofproto->pins_seq = seq_create();
1167 ofproto->pins_seqno = seq_read(ofproto->pins_seq);
1170 SHASH_FOR_EACH_SAFE (node, next, &init_ofp_ports) {
1171 struct iface_hint *iface_hint = node->data;
1173 if (!strcmp(iface_hint->br_name, ofproto->up.name)) {
1174 /* Check if the datapath already has this port. */
1175 if (dpif_port_exists(ofproto->backer->dpif, node->name)) {
1176 sset_add(&ofproto->ports, node->name);
1179 free(iface_hint->br_name);
1180 free(iface_hint->br_type);
1182 shash_delete(&init_ofp_ports, node);
1186 hmap_insert(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node,
1187 hash_string(ofproto->up.name, 0));
1188 memset(&ofproto->stats, 0, sizeof ofproto->stats);
1190 ofproto_init_tables(ofproto_, N_TABLES);
1191 error = add_internal_flows(ofproto);
1193 ofproto->up.tables[TBL_INTERNAL].flags = OFTABLE_HIDDEN | OFTABLE_READONLY;
1199 add_internal_miss_flow(struct ofproto_dpif *ofproto, int id,
1200 const struct ofpbuf *ofpacts, struct rule_dpif **rulep)
1206 match_init_catchall(&match);
1207 match_set_reg(&match, 0, id);
1209 error = ofproto_dpif_add_internal_flow(ofproto, &match, 0, ofpacts, &rule);
1210 *rulep = error ? NULL : rule_dpif_cast(rule);
1216 add_internal_flows(struct ofproto_dpif *ofproto)
1218 struct ofpact_controller *controller;
1219 uint64_t ofpacts_stub[128 / 8];
1220 struct ofpbuf ofpacts;
1221 struct rule *unused_rulep OVS_UNUSED;
1222 struct ofpact_resubmit *resubmit;
1227 ofpbuf_use_stack(&ofpacts, ofpacts_stub, sizeof ofpacts_stub);
1230 controller = ofpact_put_CONTROLLER(&ofpacts);
1231 controller->max_len = UINT16_MAX;
1232 controller->controller_id = 0;
1233 controller->reason = OFPR_NO_MATCH;
1234 ofpact_pad(&ofpacts);
1236 error = add_internal_miss_flow(ofproto, id++, &ofpacts,
1237 &ofproto->miss_rule);
1242 ofpbuf_clear(&ofpacts);
1243 error = add_internal_miss_flow(ofproto, id++, &ofpacts,
1244 &ofproto->no_packet_in_rule);
1249 error = add_internal_miss_flow(ofproto, id++, &ofpacts,
1250 &ofproto->drop_frags_rule);
1255 /* Continue non-recirculation rule lookups from table 0.
1257 * (priority=2), recirc=0, actions=resubmit(, 0)
1259 resubmit = ofpact_put_RESUBMIT(&ofpacts);
1260 resubmit->ofpact.compat = 0;
1261 resubmit->in_port = OFPP_IN_PORT;
1262 resubmit->table_id = 0;
1264 match_init_catchall(&match);
1265 match_set_recirc_id(&match, 0);
1267 error = ofproto_dpif_add_internal_flow(ofproto, &match, 2, &ofpacts,
1273 /* Drop any run away recirc rule lookups. Recirc_id has to be
1274 * non-zero when reaching this rule.
1276 * (priority=1), *, actions=drop
1278 ofpbuf_clear(&ofpacts);
1279 match_init_catchall(&match);
1280 error = ofproto_dpif_add_internal_flow(ofproto, &match, 1, &ofpacts,
1287 destruct(struct ofproto *ofproto_)
1289 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1290 struct rule_dpif *rule, *next_rule;
1291 struct ofproto_packet_in *pin, *next_pin;
1292 struct oftable *table;
1295 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1296 ovs_rwlock_wrlock(&xlate_rwlock);
1297 xlate_remove_ofproto(ofproto);
1298 ovs_rwlock_unlock(&xlate_rwlock);
1300 /* Ensure that the upcall processing threads have no remaining references
1301 * to the ofproto or anything in it. */
1302 udpif_synchronize(ofproto->backer->udpif);
1304 hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node);
1306 OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) {
1307 struct cls_cursor cursor;
1309 fat_rwlock_rdlock(&table->cls.rwlock);
1310 cls_cursor_init(&cursor, &table->cls, NULL);
1311 fat_rwlock_unlock(&table->cls.rwlock);
1312 CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) {
1313 ofproto_rule_delete(&ofproto->up, &rule->up);
1317 guarded_list_pop_all(&ofproto->pins, &pins);
1318 LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
1319 list_remove(&pin->list_node);
1320 free(CONST_CAST(void *, pin->up.packet));
1323 guarded_list_destroy(&ofproto->pins);
1325 mbridge_unref(ofproto->mbridge);
1327 netflow_unref(ofproto->netflow);
1328 dpif_sflow_unref(ofproto->sflow);
1329 hmap_destroy(&ofproto->bundles);
1330 mac_learning_unref(ofproto->ml);
1332 hmap_destroy(&ofproto->vlandev_map);
1333 hmap_destroy(&ofproto->realdev_vid_map);
1335 sset_destroy(&ofproto->ports);
1336 sset_destroy(&ofproto->ghost_ports);
1337 sset_destroy(&ofproto->port_poll_set);
1339 ovs_mutex_destroy(&ofproto->stats_mutex);
1340 ovs_mutex_destroy(&ofproto->vsp_mutex);
1342 seq_destroy(ofproto->pins_seq);
1344 close_dpif_backer(ofproto->backer);
1348 run(struct ofproto *ofproto_)
1350 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1351 uint64_t new_seq, new_dump_seq;
1353 if (mbridge_need_revalidate(ofproto->mbridge)) {
1354 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1355 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1356 mac_learning_flush(ofproto->ml);
1357 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1360 /* Always updates the ofproto->pins_seqno to avoid frequent wakeup during
1361 * flow restore. Even though nothing is processed during flow restore,
1362 * all queued 'pins' will be handled immediately when flow restore
1364 ofproto->pins_seqno = seq_read(ofproto->pins_seq);
1366 /* Do not perform any periodic activity required by 'ofproto' while
1367 * waiting for flow restore to complete. */
1368 if (!ofproto_get_flow_restore_wait()) {
1369 struct ofproto_packet_in *pin, *next_pin;
1372 guarded_list_pop_all(&ofproto->pins, &pins);
1373 LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
1374 connmgr_send_packet_in(ofproto->up.connmgr, pin);
1375 list_remove(&pin->list_node);
1376 free(CONST_CAST(void *, pin->up.packet));
1381 if (ofproto->netflow) {
1382 netflow_run(ofproto->netflow);
1384 if (ofproto->sflow) {
1385 dpif_sflow_run(ofproto->sflow);
1387 if (ofproto->ipfix) {
1388 dpif_ipfix_run(ofproto->ipfix);
1391 new_seq = seq_read(connectivity_seq_get());
1392 if (ofproto->change_seq != new_seq) {
1393 struct ofport_dpif *ofport;
1395 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1399 ofproto->change_seq = new_seq;
1401 if (ofproto->lacp_enabled || ofproto->has_bonded_bundles) {
1402 struct ofbundle *bundle;
1404 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1410 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1411 if (mac_learning_run(ofproto->ml)) {
1412 ofproto->backer->need_revalidate = REV_MAC_LEARNING;
1414 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1416 new_dump_seq = seq_read(udpif_dump_seq(ofproto->backer->udpif));
1417 if (ofproto->dump_seq != new_dump_seq) {
1418 struct rule *rule, *next_rule;
1420 /* We know stats are relatively fresh, so now is a good time to do some
1422 ofproto->dump_seq = new_dump_seq;
1424 /* Expire OpenFlow flows whose idle_timeout or hard_timeout
1426 ovs_mutex_lock(&ofproto_mutex);
1427 LIST_FOR_EACH_SAFE (rule, next_rule, expirable,
1428 &ofproto->up.expirable) {
1429 rule_expire(rule_dpif_cast(rule));
1431 ovs_mutex_unlock(&ofproto_mutex);
1433 /* All outstanding data in existing flows has been accounted, so it's a
1434 * good time to do bond rebalancing. */
1435 if (ofproto->has_bonded_bundles) {
1436 struct ofbundle *bundle;
1438 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1440 bond_rebalance(bundle->bond);
1450 wait(struct ofproto *ofproto_)
1452 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1454 if (ofproto_get_flow_restore_wait()) {
1458 if (ofproto->sflow) {
1459 dpif_sflow_wait(ofproto->sflow);
1461 if (ofproto->ipfix) {
1462 dpif_ipfix_wait(ofproto->ipfix);
1464 if (ofproto->lacp_enabled || ofproto->has_bonded_bundles) {
1465 struct ofbundle *bundle;
1467 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1468 bundle_wait(bundle);
1471 if (ofproto->netflow) {
1472 netflow_wait(ofproto->netflow);
1474 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
1475 mac_learning_wait(ofproto->ml);
1476 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1478 if (ofproto->backer->need_revalidate) {
1479 /* Shouldn't happen, but if it does just go around again. */
1480 VLOG_DBG_RL(&rl, "need revalidate in ofproto_wait_cb()");
1481 poll_immediate_wake();
1484 seq_wait(udpif_dump_seq(ofproto->backer->udpif), ofproto->dump_seq);
1485 seq_wait(ofproto->pins_seq, ofproto->pins_seqno);
1489 type_get_memory_usage(const char *type, struct simap *usage)
1491 struct dpif_backer *backer;
1493 backer = shash_find_data(&all_dpif_backers, type);
1495 udpif_get_memory_usage(backer->udpif, usage);
1500 flush(struct ofproto *ofproto_)
1502 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1503 struct dpif_backer *backer = ofproto->backer;
1506 udpif_flush(backer->udpif);
1511 get_features(struct ofproto *ofproto_ OVS_UNUSED,
1512 bool *arp_match_ip, enum ofputil_action_bitmap *actions)
1514 *arp_match_ip = true;
1515 *actions = (OFPUTIL_A_OUTPUT |
1516 OFPUTIL_A_SET_VLAN_VID |
1517 OFPUTIL_A_SET_VLAN_PCP |
1518 OFPUTIL_A_STRIP_VLAN |
1519 OFPUTIL_A_SET_DL_SRC |
1520 OFPUTIL_A_SET_DL_DST |
1521 OFPUTIL_A_SET_NW_SRC |
1522 OFPUTIL_A_SET_NW_DST |
1523 OFPUTIL_A_SET_NW_TOS |
1524 OFPUTIL_A_SET_TP_SRC |
1525 OFPUTIL_A_SET_TP_DST |
1530 get_tables(struct ofproto *ofproto_, struct ofp12_table_stats *ots)
1532 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1533 struct dpif_dp_stats s;
1534 uint64_t n_miss, n_no_pkt_in, n_bytes, n_dropped_frags;
1538 strcpy(ots->name, "classifier");
1540 dpif_get_dp_stats(ofproto->backer->dpif, &s);
1541 rule_get_stats(&ofproto->miss_rule->up, &n_miss, &n_bytes, &used);
1542 rule_get_stats(&ofproto->no_packet_in_rule->up, &n_no_pkt_in, &n_bytes,
1544 rule_get_stats(&ofproto->drop_frags_rule->up, &n_dropped_frags, &n_bytes,
1546 n_lookup = s.n_hit + s.n_missed - n_dropped_frags;
1547 ots->lookup_count = htonll(n_lookup);
1548 ots->matched_count = htonll(n_lookup - n_miss - n_no_pkt_in);
1551 static struct ofport *
1554 struct ofport_dpif *port = xmalloc(sizeof *port);
1559 port_dealloc(struct ofport *port_)
1561 struct ofport_dpif *port = ofport_dpif_cast(port_);
1566 port_construct(struct ofport *port_)
1568 struct ofport_dpif *port = ofport_dpif_cast(port_);
1569 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1570 const struct netdev *netdev = port->up.netdev;
1571 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
1572 struct dpif_port dpif_port;
1575 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1576 port->bundle = NULL;
1579 port->may_enable = true;
1580 port->stp_port = NULL;
1581 port->stp_state = STP_DISABLED;
1582 port->is_tunnel = false;
1586 port->realdev_ofp_port = 0;
1587 port->vlandev_vid = 0;
1588 port->carrier_seq = netdev_get_carrier_resets(netdev);
1589 port->is_layer3 = netdev_vport_is_layer3(netdev);
1591 if (netdev_vport_is_patch(netdev)) {
1592 /* By bailing out here, we don't submit the port to the sFlow module
1593 * to be considered for counter polling export. This is correct
1594 * because the patch port represents an interface that sFlow considers
1595 * to be "internal" to the switch as a whole, and therefore not an
1596 * candidate for counter polling. */
1597 port->odp_port = ODPP_NONE;
1598 ofport_update_peer(port);
1602 error = dpif_port_query_by_name(ofproto->backer->dpif,
1603 netdev_vport_get_dpif_port(netdev, namebuf,
1610 port->odp_port = dpif_port.port_no;
1612 if (netdev_get_tunnel_config(netdev)) {
1613 tnl_port_add(port, port->up.netdev, port->odp_port);
1614 port->is_tunnel = true;
1616 /* Sanity-check that a mapping doesn't already exist. This
1617 * shouldn't happen for non-tunnel ports. */
1618 if (odp_port_to_ofp_port(ofproto, port->odp_port) != OFPP_NONE) {
1619 VLOG_ERR("port %s already has an OpenFlow port number",
1621 dpif_port_destroy(&dpif_port);
1625 ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
1626 hmap_insert(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node,
1627 hash_odp_port(port->odp_port));
1628 ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
1630 dpif_port_destroy(&dpif_port);
1632 if (ofproto->sflow) {
1633 dpif_sflow_add_port(ofproto->sflow, port_, port->odp_port);
1640 port_destruct(struct ofport *port_)
1642 struct ofport_dpif *port = ofport_dpif_cast(port_);
1643 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1644 const char *devname = netdev_get_name(port->up.netdev);
1645 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
1646 const char *dp_port_name;
1648 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1649 ovs_rwlock_wrlock(&xlate_rwlock);
1650 xlate_ofport_remove(port);
1651 ovs_rwlock_unlock(&xlate_rwlock);
1653 dp_port_name = netdev_vport_get_dpif_port(port->up.netdev, namebuf,
1655 if (dpif_port_exists(ofproto->backer->dpif, dp_port_name)) {
1656 /* The underlying device is still there, so delete it. This
1657 * happens when the ofproto is being destroyed, since the caller
1658 * assumes that removal of attached ports will happen as part of
1660 if (!port->is_tunnel) {
1661 dpif_port_del(ofproto->backer->dpif, port->odp_port);
1666 port->peer->peer = NULL;
1670 if (port->odp_port != ODPP_NONE && !port->is_tunnel) {
1671 ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
1672 hmap_remove(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node);
1673 ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
1677 sset_find_and_delete(&ofproto->ports, devname);
1678 sset_find_and_delete(&ofproto->ghost_ports, devname);
1679 bundle_remove(port_);
1680 set_cfm(port_, NULL);
1681 set_bfd(port_, NULL);
1682 if (port->stp_port) {
1683 stp_port_disable(port->stp_port);
1685 if (ofproto->sflow) {
1686 dpif_sflow_del_port(ofproto->sflow, port->odp_port);
1693 port_modified(struct ofport *port_)
1695 struct ofport_dpif *port = ofport_dpif_cast(port_);
1697 if (port->bundle && port->bundle->bond) {
1698 bond_slave_set_netdev(port->bundle->bond, port, port->up.netdev);
1702 cfm_set_netdev(port->cfm, port->up.netdev);
1706 bfd_set_netdev(port->bfd, port->up.netdev);
1709 ofproto_dpif_monitor_port_update(port, port->bfd, port->cfm,
1710 port->up.pp.hw_addr);
1712 if (port->is_tunnel && tnl_port_reconfigure(port, port->up.netdev,
1714 ofproto_dpif_cast(port->up.ofproto)->backer->need_revalidate =
1718 ofport_update_peer(port);
1722 port_reconfigured(struct ofport *port_, enum ofputil_port_config old_config)
1724 struct ofport_dpif *port = ofport_dpif_cast(port_);
1725 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1726 enum ofputil_port_config changed = old_config ^ port->up.pp.config;
1728 if (changed & (OFPUTIL_PC_NO_RECV | OFPUTIL_PC_NO_RECV_STP |
1729 OFPUTIL_PC_NO_FWD | OFPUTIL_PC_NO_FLOOD |
1730 OFPUTIL_PC_NO_PACKET_IN)) {
1731 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1733 if (changed & OFPUTIL_PC_NO_FLOOD && port->bundle) {
1734 bundle_update(port->bundle);
1740 set_sflow(struct ofproto *ofproto_,
1741 const struct ofproto_sflow_options *sflow_options)
1743 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1744 struct dpif_sflow *ds = ofproto->sflow;
1746 if (sflow_options) {
1748 struct ofport_dpif *ofport;
1750 ds = ofproto->sflow = dpif_sflow_create();
1751 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1752 dpif_sflow_add_port(ds, &ofport->up, ofport->odp_port);
1754 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1756 dpif_sflow_set_options(ds, sflow_options);
1759 dpif_sflow_unref(ds);
1760 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1761 ofproto->sflow = NULL;
1769 struct ofproto *ofproto_,
1770 const struct ofproto_ipfix_bridge_exporter_options *bridge_exporter_options,
1771 const struct ofproto_ipfix_flow_exporter_options *flow_exporters_options,
1772 size_t n_flow_exporters_options)
1774 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1775 struct dpif_ipfix *di = ofproto->ipfix;
1776 bool has_options = bridge_exporter_options || flow_exporters_options;
1778 if (has_options && !di) {
1779 di = ofproto->ipfix = dpif_ipfix_create();
1783 /* Call set_options in any case to cleanly flush the flow
1784 * caches in the last exporters that are to be destroyed. */
1785 dpif_ipfix_set_options(
1786 di, bridge_exporter_options, flow_exporters_options,
1787 n_flow_exporters_options);
1790 dpif_ipfix_unref(di);
1791 ofproto->ipfix = NULL;
1799 set_cfm(struct ofport *ofport_, const struct cfm_settings *s)
1801 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1806 struct ofproto_dpif *ofproto;
1808 ofproto = ofproto_dpif_cast(ofport->up.ofproto);
1809 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1810 ofport->cfm = cfm_create(ofport->up.netdev);
1813 if (cfm_configure(ofport->cfm, s)) {
1820 cfm_unref(ofport->cfm);
1823 ofproto_dpif_monitor_port_update(ofport, ofport->bfd, ofport->cfm,
1824 ofport->up.pp.hw_addr);
1829 get_cfm_status(const struct ofport *ofport_,
1830 struct ofproto_cfm_status *status)
1832 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1836 if (cfm_check_status_change(ofport->cfm)) {
1837 status->faults = cfm_get_fault(ofport->cfm);
1838 status->flap_count = cfm_get_flap_count(ofport->cfm);
1839 status->remote_opstate = cfm_get_opup(ofport->cfm);
1840 status->health = cfm_get_health(ofport->cfm);
1841 cfm_get_remote_mpids(ofport->cfm, &status->rmps, &status->n_rmps);
1843 ret = NO_STATUS_CHANGE;
1853 set_bfd(struct ofport *ofport_, const struct smap *cfg)
1855 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto);
1856 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1860 ofport->bfd = bfd_configure(old, netdev_get_name(ofport->up.netdev),
1861 cfg, ofport->up.netdev);
1862 if (ofport->bfd != old) {
1863 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1865 ofproto_dpif_monitor_port_update(ofport, ofport->bfd, ofport->cfm,
1866 ofport->up.pp.hw_addr);
1871 get_bfd_status(struct ofport *ofport_, struct smap *smap)
1873 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1877 if (bfd_check_status_change(ofport->bfd)) {
1878 bfd_get_status(ofport->bfd, smap);
1880 ret = NO_STATUS_CHANGE;
1889 /* Spanning Tree. */
1892 send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_)
1894 struct ofproto_dpif *ofproto = ofproto_;
1895 struct stp_port *sp = stp_get_port(ofproto->stp, port_num);
1896 struct ofport_dpif *ofport;
1898 ofport = stp_port_get_aux(sp);
1900 VLOG_WARN_RL(&rl, "%s: cannot send BPDU on unknown port %d",
1901 ofproto->up.name, port_num);
1903 struct eth_header *eth = ofpbuf_l2(pkt);
1905 netdev_get_etheraddr(ofport->up.netdev, eth->eth_src);
1906 if (eth_addr_is_zero(eth->eth_src)) {
1907 VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d "
1908 "with unknown MAC", ofproto->up.name, port_num);
1910 ofproto_dpif_send_packet(ofport, pkt);
1916 /* Configures STP on 'ofproto_' using the settings defined in 's'. */
1918 set_stp(struct ofproto *ofproto_, const struct ofproto_stp_settings *s)
1920 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1922 /* Only revalidate flows if the configuration changed. */
1923 if (!s != !ofproto->stp) {
1924 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1928 if (!ofproto->stp) {
1929 ofproto->stp = stp_create(ofproto_->name, s->system_id,
1930 send_bpdu_cb, ofproto);
1931 ofproto->stp_last_tick = time_msec();
1934 stp_set_bridge_id(ofproto->stp, s->system_id);
1935 stp_set_bridge_priority(ofproto->stp, s->priority);
1936 stp_set_hello_time(ofproto->stp, s->hello_time);
1937 stp_set_max_age(ofproto->stp, s->max_age);
1938 stp_set_forward_delay(ofproto->stp, s->fwd_delay);
1940 struct ofport *ofport;
1942 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
1943 set_stp_port(ofport, NULL);
1946 stp_unref(ofproto->stp);
1947 ofproto->stp = NULL;
1954 get_stp_status(struct ofproto *ofproto_, struct ofproto_stp_status *s)
1956 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1960 s->bridge_id = stp_get_bridge_id(ofproto->stp);
1961 s->designated_root = stp_get_designated_root(ofproto->stp);
1962 s->root_path_cost = stp_get_root_path_cost(ofproto->stp);
1971 update_stp_port_state(struct ofport_dpif *ofport)
1973 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
1974 enum stp_state state;
1976 /* Figure out new state. */
1977 state = ofport->stp_port ? stp_port_get_state(ofport->stp_port)
1981 if (ofport->stp_state != state) {
1982 enum ofputil_port_state of_state;
1985 VLOG_DBG_RL(&rl, "port %s: STP state changed from %s to %s",
1986 netdev_get_name(ofport->up.netdev),
1987 stp_state_name(ofport->stp_state),
1988 stp_state_name(state));
1989 if (stp_learn_in_state(ofport->stp_state)
1990 != stp_learn_in_state(state)) {
1991 /* xxx Learning action flows should also be flushed. */
1992 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1993 mac_learning_flush(ofproto->ml);
1994 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1996 fwd_change = stp_forward_in_state(ofport->stp_state)
1997 != stp_forward_in_state(state);
1999 ofproto->backer->need_revalidate = REV_STP;
2000 ofport->stp_state = state;
2001 ofport->stp_state_entered = time_msec();
2003 if (fwd_change && ofport->bundle) {
2004 bundle_update(ofport->bundle);
2007 /* Update the STP state bits in the OpenFlow port description. */
2008 of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK;
2009 of_state |= (state == STP_LISTENING ? OFPUTIL_PS_STP_LISTEN
2010 : state == STP_LEARNING ? OFPUTIL_PS_STP_LEARN
2011 : state == STP_FORWARDING ? OFPUTIL_PS_STP_FORWARD
2012 : state == STP_BLOCKING ? OFPUTIL_PS_STP_BLOCK
2014 ofproto_port_set_state(&ofport->up, of_state);
2018 /* Configures STP on 'ofport_' using the settings defined in 's'. The
2019 * caller is responsible for assigning STP port numbers and ensuring
2020 * there are no duplicates. */
2022 set_stp_port(struct ofport *ofport_,
2023 const struct ofproto_port_stp_settings *s)
2025 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2026 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2027 struct stp_port *sp = ofport->stp_port;
2029 if (!s || !s->enable) {
2031 ofport->stp_port = NULL;
2032 stp_port_disable(sp);
2033 update_stp_port_state(ofport);
2036 } else if (sp && stp_port_no(sp) != s->port_num
2037 && ofport == stp_port_get_aux(sp)) {
2038 /* The port-id changed, so disable the old one if it's not
2039 * already in use by another port. */
2040 stp_port_disable(sp);
2043 sp = ofport->stp_port = stp_get_port(ofproto->stp, s->port_num);
2044 stp_port_enable(sp);
2046 stp_port_set_aux(sp, ofport);
2047 stp_port_set_priority(sp, s->priority);
2048 stp_port_set_path_cost(sp, s->path_cost);
2050 update_stp_port_state(ofport);
2056 get_stp_port_status(struct ofport *ofport_,
2057 struct ofproto_port_stp_status *s)
2059 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2060 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2061 struct stp_port *sp = ofport->stp_port;
2063 if (!ofproto->stp || !sp) {
2069 s->port_id = stp_port_get_id(sp);
2070 s->state = stp_port_get_state(sp);
2071 s->sec_in_state = (time_msec() - ofport->stp_state_entered) / 1000;
2072 s->role = stp_port_get_role(sp);
2078 get_stp_port_stats(struct ofport *ofport_,
2079 struct ofproto_port_stp_stats *s)
2081 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2082 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2083 struct stp_port *sp = ofport->stp_port;
2085 if (!ofproto->stp || !sp) {
2091 stp_port_get_counts(sp, &s->tx_count, &s->rx_count, &s->error_count);
2097 stp_run(struct ofproto_dpif *ofproto)
2100 long long int now = time_msec();
2101 long long int elapsed = now - ofproto->stp_last_tick;
2102 struct stp_port *sp;
2105 stp_tick(ofproto->stp, MIN(INT_MAX, elapsed));
2106 ofproto->stp_last_tick = now;
2108 while (stp_get_changed_port(ofproto->stp, &sp)) {
2109 struct ofport_dpif *ofport = stp_port_get_aux(sp);
2112 update_stp_port_state(ofport);
2116 if (stp_check_and_reset_fdb_flush(ofproto->stp)) {
2117 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2118 mac_learning_flush(ofproto->ml);
2119 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2125 stp_wait(struct ofproto_dpif *ofproto)
2128 poll_timer_wait(1000);
2133 set_queues(struct ofport *ofport_, const struct ofproto_port_queue *qdscp,
2136 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2137 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2139 if (ofport->n_qdscp != n_qdscp
2140 || (n_qdscp && memcmp(ofport->qdscp, qdscp,
2141 n_qdscp * sizeof *qdscp))) {
2142 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2143 free(ofport->qdscp);
2144 ofport->qdscp = n_qdscp
2145 ? xmemdup(qdscp, n_qdscp * sizeof *qdscp)
2147 ofport->n_qdscp = n_qdscp;
2155 /* Expires all MAC learning entries associated with 'bundle' and forces its
2156 * ofproto to revalidate every flow.
2158 * Normally MAC learning entries are removed only from the ofproto associated
2159 * with 'bundle', but if 'all_ofprotos' is true, then the MAC learning entries
2160 * are removed from every ofproto. When patch ports and SLB bonds are in use
2161 * and a VM migration happens and the gratuitous ARPs are somehow lost, this
2162 * avoids a MAC_ENTRY_IDLE_TIME delay before the migrated VM can communicate
2163 * with the host from which it migrated. */
2165 bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos)
2167 struct ofproto_dpif *ofproto = bundle->ofproto;
2168 struct mac_learning *ml = ofproto->ml;
2169 struct mac_entry *mac, *next_mac;
2171 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2172 ovs_rwlock_wrlock(&ml->rwlock);
2173 LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
2174 if (mac->port.p == bundle) {
2176 struct ofproto_dpif *o;
2178 HMAP_FOR_EACH (o, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
2180 struct mac_entry *e;
2182 ovs_rwlock_wrlock(&o->ml->rwlock);
2183 e = mac_learning_lookup(o->ml, mac->mac, mac->vlan);
2185 mac_learning_expire(o->ml, e);
2187 ovs_rwlock_unlock(&o->ml->rwlock);
2192 mac_learning_expire(ml, mac);
2195 ovs_rwlock_unlock(&ml->rwlock);
2198 static struct ofbundle *
2199 bundle_lookup(const struct ofproto_dpif *ofproto, void *aux)
2201 struct ofbundle *bundle;
2203 HMAP_FOR_EACH_IN_BUCKET (bundle, hmap_node, hash_pointer(aux, 0),
2204 &ofproto->bundles) {
2205 if (bundle->aux == aux) {
2213 bundle_update(struct ofbundle *bundle)
2215 struct ofport_dpif *port;
2217 bundle->floodable = true;
2218 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2219 if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
2221 || !stp_forward_in_state(port->stp_state)) {
2222 bundle->floodable = false;
2229 bundle_del_port(struct ofport_dpif *port)
2231 struct ofbundle *bundle = port->bundle;
2233 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2235 list_remove(&port->bundle_node);
2236 port->bundle = NULL;
2239 lacp_slave_unregister(bundle->lacp, port);
2242 bond_slave_unregister(bundle->bond, port);
2245 bundle_update(bundle);
2249 bundle_add_port(struct ofbundle *bundle, ofp_port_t ofp_port,
2250 struct lacp_slave_settings *lacp)
2252 struct ofport_dpif *port;
2254 port = get_ofp_port(bundle->ofproto, ofp_port);
2259 if (port->bundle != bundle) {
2260 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2262 bundle_remove(&port->up);
2265 port->bundle = bundle;
2266 list_push_back(&bundle->ports, &port->bundle_node);
2267 if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
2269 || !stp_forward_in_state(port->stp_state)) {
2270 bundle->floodable = false;
2274 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2275 lacp_slave_register(bundle->lacp, port, lacp);
2282 bundle_destroy(struct ofbundle *bundle)
2284 struct ofproto_dpif *ofproto;
2285 struct ofport_dpif *port, *next_port;
2291 ofproto = bundle->ofproto;
2292 mbridge_unregister_bundle(ofproto->mbridge, bundle->aux);
2294 ovs_rwlock_wrlock(&xlate_rwlock);
2295 xlate_bundle_remove(bundle);
2296 ovs_rwlock_unlock(&xlate_rwlock);
2298 LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
2299 bundle_del_port(port);
2302 bundle_flush_macs(bundle, true);
2303 hmap_remove(&ofproto->bundles, &bundle->hmap_node);
2305 free(bundle->trunks);
2306 lacp_unref(bundle->lacp);
2307 bond_unref(bundle->bond);
2312 bundle_set(struct ofproto *ofproto_, void *aux,
2313 const struct ofproto_bundle_settings *s)
2315 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2316 bool need_flush = false;
2317 struct ofport_dpif *port;
2318 struct ofbundle *bundle;
2319 unsigned long *trunks;
2325 bundle_destroy(bundle_lookup(ofproto, aux));
2329 ovs_assert(s->n_slaves == 1 || s->bond != NULL);
2330 ovs_assert((s->lacp != NULL) == (s->lacp_slaves != NULL));
2332 bundle = bundle_lookup(ofproto, aux);
2334 bundle = xmalloc(sizeof *bundle);
2336 bundle->ofproto = ofproto;
2337 hmap_insert(&ofproto->bundles, &bundle->hmap_node,
2338 hash_pointer(aux, 0));
2340 bundle->name = NULL;
2342 list_init(&bundle->ports);
2343 bundle->vlan_mode = PORT_VLAN_TRUNK;
2345 bundle->trunks = NULL;
2346 bundle->use_priority_tags = s->use_priority_tags;
2347 bundle->lacp = NULL;
2348 bundle->bond = NULL;
2350 bundle->floodable = true;
2351 mbridge_register_bundle(ofproto->mbridge, bundle);
2354 if (!bundle->name || strcmp(s->name, bundle->name)) {
2356 bundle->name = xstrdup(s->name);
2361 ofproto->lacp_enabled = true;
2362 if (!bundle->lacp) {
2363 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2364 bundle->lacp = lacp_create();
2366 lacp_configure(bundle->lacp, s->lacp);
2368 lacp_unref(bundle->lacp);
2369 bundle->lacp = NULL;
2372 /* Update set of ports. */
2374 for (i = 0; i < s->n_slaves; i++) {
2375 if (!bundle_add_port(bundle, s->slaves[i],
2376 s->lacp ? &s->lacp_slaves[i] : NULL)) {
2380 if (!ok || list_size(&bundle->ports) != s->n_slaves) {
2381 struct ofport_dpif *next_port;
2383 LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
2384 for (i = 0; i < s->n_slaves; i++) {
2385 if (s->slaves[i] == port->up.ofp_port) {
2390 bundle_del_port(port);
2394 ovs_assert(list_size(&bundle->ports) <= s->n_slaves);
2396 if (list_is_empty(&bundle->ports)) {
2397 bundle_destroy(bundle);
2401 /* Set VLAN tagging mode */
2402 if (s->vlan_mode != bundle->vlan_mode
2403 || s->use_priority_tags != bundle->use_priority_tags) {
2404 bundle->vlan_mode = s->vlan_mode;
2405 bundle->use_priority_tags = s->use_priority_tags;
2410 vlan = (s->vlan_mode == PORT_VLAN_TRUNK ? -1
2411 : s->vlan >= 0 && s->vlan <= 4095 ? s->vlan
2413 if (vlan != bundle->vlan) {
2414 bundle->vlan = vlan;
2418 /* Get trunked VLANs. */
2419 switch (s->vlan_mode) {
2420 case PORT_VLAN_ACCESS:
2424 case PORT_VLAN_TRUNK:
2425 trunks = CONST_CAST(unsigned long *, s->trunks);
2428 case PORT_VLAN_NATIVE_UNTAGGED:
2429 case PORT_VLAN_NATIVE_TAGGED:
2430 if (vlan != 0 && (!s->trunks
2431 || !bitmap_is_set(s->trunks, vlan)
2432 || bitmap_is_set(s->trunks, 0))) {
2433 /* Force trunking the native VLAN and prohibit trunking VLAN 0. */
2435 trunks = bitmap_clone(s->trunks, 4096);
2437 trunks = bitmap_allocate1(4096);
2439 bitmap_set1(trunks, vlan);
2440 bitmap_set0(trunks, 0);
2442 trunks = CONST_CAST(unsigned long *, s->trunks);
2449 if (!vlan_bitmap_equal(trunks, bundle->trunks)) {
2450 free(bundle->trunks);
2451 if (trunks == s->trunks) {
2452 bundle->trunks = vlan_bitmap_clone(trunks);
2454 bundle->trunks = trunks;
2459 if (trunks != s->trunks) {
2464 if (!list_is_short(&bundle->ports)) {
2465 bundle->ofproto->has_bonded_bundles = true;
2467 if (bond_reconfigure(bundle->bond, s->bond)) {
2468 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2471 bundle->bond = bond_create(s->bond, ofproto);
2472 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2475 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2476 bond_slave_register(bundle->bond, port,
2477 port->up.ofp_port, port->up.netdev);
2480 bond_unref(bundle->bond);
2481 bundle->bond = NULL;
2484 /* If we changed something that would affect MAC learning, un-learn
2485 * everything on this port and force flow revalidation. */
2487 bundle_flush_macs(bundle, false);
2494 bundle_remove(struct ofport *port_)
2496 struct ofport_dpif *port = ofport_dpif_cast(port_);
2497 struct ofbundle *bundle = port->bundle;
2500 bundle_del_port(port);
2501 if (list_is_empty(&bundle->ports)) {
2502 bundle_destroy(bundle);
2503 } else if (list_is_short(&bundle->ports)) {
2504 bond_unref(bundle->bond);
2505 bundle->bond = NULL;
2511 send_pdu_cb(void *port_, const void *pdu, size_t pdu_size)
2513 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
2514 struct ofport_dpif *port = port_;
2515 uint8_t ea[ETH_ADDR_LEN];
2518 error = netdev_get_etheraddr(port->up.netdev, ea);
2520 struct ofpbuf packet;
2523 ofpbuf_init(&packet, 0);
2524 packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP,
2526 memcpy(packet_pdu, pdu, pdu_size);
2528 ofproto_dpif_send_packet(port, &packet);
2529 ofpbuf_uninit(&packet);
2531 VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface "
2532 "%s (%s)", port->bundle->name,
2533 netdev_get_name(port->up.netdev), ovs_strerror(error));
2538 bundle_send_learning_packets(struct ofbundle *bundle)
2540 struct ofproto_dpif *ofproto = bundle->ofproto;
2541 struct ofpbuf *learning_packet;
2542 int error, n_packets, n_errors;
2543 struct mac_entry *e;
2544 struct list packets;
2546 list_init(&packets);
2547 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
2548 LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
2549 if (e->port.p != bundle) {
2552 learning_packet = bond_compose_learning_packet(bundle->bond,
2555 /* Temporarily use 'frame' as a private pointer (see below). */
2556 ovs_assert(learning_packet->frame == ofpbuf_data(learning_packet));
2557 learning_packet->frame = port_void;
2558 list_push_back(&packets, &learning_packet->list_node);
2561 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2563 error = n_packets = n_errors = 0;
2564 LIST_FOR_EACH (learning_packet, list_node, &packets) {
2566 void *port_void = learning_packet->frame;
2568 /* Restore 'frame'. */
2569 learning_packet->frame = ofpbuf_data(learning_packet);
2570 ret = ofproto_dpif_send_packet(port_void, learning_packet);
2577 ofpbuf_list_delete(&packets);
2580 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2581 VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning "
2582 "packets, last error was: %s",
2583 bundle->name, n_errors, n_packets, ovs_strerror(error));
2585 VLOG_DBG("bond %s: sent %d gratuitous learning packets",
2586 bundle->name, n_packets);
2591 bundle_run(struct ofbundle *bundle)
2594 lacp_run(bundle->lacp, send_pdu_cb);
2597 struct ofport_dpif *port;
2599 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2600 bond_slave_set_may_enable(bundle->bond, port, port->may_enable);
2603 if (bond_run(bundle->bond, lacp_status(bundle->lacp))) {
2604 bundle->ofproto->backer->need_revalidate = REV_BOND;
2607 if (bond_should_send_learning_packets(bundle->bond)) {
2608 bundle_send_learning_packets(bundle);
2614 bundle_wait(struct ofbundle *bundle)
2617 lacp_wait(bundle->lacp);
2620 bond_wait(bundle->bond);
2627 mirror_set__(struct ofproto *ofproto_, void *aux,
2628 const struct ofproto_mirror_settings *s)
2630 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2631 struct ofbundle **srcs, **dsts;
2636 mirror_destroy(ofproto->mbridge, aux);
2640 srcs = xmalloc(s->n_srcs * sizeof *srcs);
2641 dsts = xmalloc(s->n_dsts * sizeof *dsts);
2643 for (i = 0; i < s->n_srcs; i++) {
2644 srcs[i] = bundle_lookup(ofproto, s->srcs[i]);
2647 for (i = 0; i < s->n_dsts; i++) {
2648 dsts[i] = bundle_lookup(ofproto, s->dsts[i]);
2651 error = mirror_set(ofproto->mbridge, aux, s->name, srcs, s->n_srcs, dsts,
2652 s->n_dsts, s->src_vlans,
2653 bundle_lookup(ofproto, s->out_bundle), s->out_vlan);
2660 mirror_get_stats__(struct ofproto *ofproto, void *aux,
2661 uint64_t *packets, uint64_t *bytes)
2663 return mirror_get_stats(ofproto_dpif_cast(ofproto)->mbridge, aux, packets,
2668 set_flood_vlans(struct ofproto *ofproto_, unsigned long *flood_vlans)
2670 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2671 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2672 if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) {
2673 mac_learning_flush(ofproto->ml);
2675 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2680 is_mirror_output_bundle(const struct ofproto *ofproto_, void *aux)
2682 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2683 struct ofbundle *bundle = bundle_lookup(ofproto, aux);
2684 return bundle && mirror_bundle_out(ofproto->mbridge, bundle) != 0;
2688 forward_bpdu_changed(struct ofproto *ofproto_)
2690 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2691 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2695 set_mac_table_config(struct ofproto *ofproto_, unsigned int idle_time,
2698 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2699 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2700 mac_learning_set_idle_time(ofproto->ml, idle_time);
2701 mac_learning_set_max_entries(ofproto->ml, max_entries);
2702 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2707 static struct ofport_dpif *
2708 get_ofp_port(const struct ofproto_dpif *ofproto, ofp_port_t ofp_port)
2710 struct ofport *ofport = ofproto_get_port(&ofproto->up, ofp_port);
2711 return ofport ? ofport_dpif_cast(ofport) : NULL;
2715 ofproto_port_from_dpif_port(struct ofproto_dpif *ofproto,
2716 struct ofproto_port *ofproto_port,
2717 struct dpif_port *dpif_port)
2719 ofproto_port->name = dpif_port->name;
2720 ofproto_port->type = dpif_port->type;
2721 ofproto_port->ofp_port = odp_port_to_ofp_port(ofproto, dpif_port->port_no);
2725 ofport_update_peer(struct ofport_dpif *ofport)
2727 const struct ofproto_dpif *ofproto;
2728 struct dpif_backer *backer;
2731 if (!netdev_vport_is_patch(ofport->up.netdev)) {
2735 backer = ofproto_dpif_cast(ofport->up.ofproto)->backer;
2736 backer->need_revalidate = REV_RECONFIGURE;
2739 ofport->peer->peer = NULL;
2740 ofport->peer = NULL;
2743 peer_name = netdev_vport_patch_peer(ofport->up.netdev);
2748 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
2749 struct ofport *peer_ofport;
2750 struct ofport_dpif *peer;
2753 if (ofproto->backer != backer) {
2757 peer_ofport = shash_find_data(&ofproto->up.port_by_name, peer_name);
2762 peer = ofport_dpif_cast(peer_ofport);
2763 peer_peer = netdev_vport_patch_peer(peer->up.netdev);
2764 if (peer_peer && !strcmp(netdev_get_name(ofport->up.netdev),
2766 ofport->peer = peer;
2767 ofport->peer->peer = ofport;
2777 port_run(struct ofport_dpif *ofport)
2779 long long int carrier_seq = netdev_get_carrier_resets(ofport->up.netdev);
2780 bool carrier_changed = carrier_seq != ofport->carrier_seq;
2781 bool enable = netdev_get_carrier(ofport->up.netdev);
2782 bool cfm_enable = false;
2783 bool bfd_enable = false;
2785 ofport->carrier_seq = carrier_seq;
2788 int cfm_opup = cfm_get_opup(ofport->cfm);
2790 cfm_enable = !cfm_get_fault(ofport->cfm);
2792 if (cfm_opup >= 0) {
2793 cfm_enable = cfm_enable && cfm_opup;
2798 bfd_enable = bfd_forwarding(ofport->bfd);
2801 if (ofport->bfd || ofport->cfm) {
2802 enable = enable && (cfm_enable || bfd_enable);
2805 if (ofport->bundle) {
2806 enable = enable && lacp_slave_may_enable(ofport->bundle->lacp, ofport);
2807 if (carrier_changed) {
2808 lacp_slave_carrier_changed(ofport->bundle->lacp, ofport);
2812 if (ofport->may_enable != enable) {
2813 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2814 ofproto->backer->need_revalidate = REV_PORT_TOGGLED;
2817 ofport->may_enable = enable;
2821 port_query_by_name(const struct ofproto *ofproto_, const char *devname,
2822 struct ofproto_port *ofproto_port)
2824 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2825 struct dpif_port dpif_port;
2828 if (sset_contains(&ofproto->ghost_ports, devname)) {
2829 const char *type = netdev_get_type_from_name(devname);
2831 /* We may be called before ofproto->up.port_by_name is populated with
2832 * the appropriate ofport. For this reason, we must get the name and
2833 * type from the netdev layer directly. */
2835 const struct ofport *ofport;
2837 ofport = shash_find_data(&ofproto->up.port_by_name, devname);
2838 ofproto_port->ofp_port = ofport ? ofport->ofp_port : OFPP_NONE;
2839 ofproto_port->name = xstrdup(devname);
2840 ofproto_port->type = xstrdup(type);
2846 if (!sset_contains(&ofproto->ports, devname)) {
2849 error = dpif_port_query_by_name(ofproto->backer->dpif,
2850 devname, &dpif_port);
2852 ofproto_port_from_dpif_port(ofproto, ofproto_port, &dpif_port);
2858 port_add(struct ofproto *ofproto_, struct netdev *netdev)
2860 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2861 const char *devname = netdev_get_name(netdev);
2862 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
2863 const char *dp_port_name;
2865 if (netdev_vport_is_patch(netdev)) {
2866 sset_add(&ofproto->ghost_ports, netdev_get_name(netdev));
2870 dp_port_name = netdev_vport_get_dpif_port(netdev, namebuf, sizeof namebuf);
2871 if (!dpif_port_exists(ofproto->backer->dpif, dp_port_name)) {
2872 odp_port_t port_no = ODPP_NONE;
2875 error = dpif_port_add(ofproto->backer->dpif, netdev, &port_no);
2879 if (netdev_get_tunnel_config(netdev)) {
2880 simap_put(&ofproto->backer->tnl_backers,
2881 dp_port_name, odp_to_u32(port_no));
2885 if (netdev_get_tunnel_config(netdev)) {
2886 sset_add(&ofproto->ghost_ports, devname);
2888 sset_add(&ofproto->ports, devname);
2894 port_del(struct ofproto *ofproto_, ofp_port_t ofp_port)
2896 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2897 struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port);
2904 sset_find_and_delete(&ofproto->ghost_ports,
2905 netdev_get_name(ofport->up.netdev));
2906 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2907 if (!ofport->is_tunnel && !netdev_vport_is_patch(ofport->up.netdev)) {
2908 error = dpif_port_del(ofproto->backer->dpif, ofport->odp_port);
2910 /* The caller is going to close ofport->up.netdev. If this is a
2911 * bonded port, then the bond is using that netdev, so remove it
2912 * from the bond. The client will need to reconfigure everything
2913 * after deleting ports, so then the slave will get re-added. */
2914 bundle_remove(&ofport->up);
2921 port_get_stats(const struct ofport *ofport_, struct netdev_stats *stats)
2923 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2926 error = netdev_get_stats(ofport->up.netdev, stats);
2928 if (!error && ofport_->ofp_port == OFPP_LOCAL) {
2929 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2931 ovs_mutex_lock(&ofproto->stats_mutex);
2932 /* ofproto->stats.tx_packets represents packets that we created
2933 * internally and sent to some port (e.g. packets sent with
2934 * ofproto_dpif_send_packet()). Account for them as if they had
2935 * come from OFPP_LOCAL and got forwarded. */
2937 if (stats->rx_packets != UINT64_MAX) {
2938 stats->rx_packets += ofproto->stats.tx_packets;
2941 if (stats->rx_bytes != UINT64_MAX) {
2942 stats->rx_bytes += ofproto->stats.tx_bytes;
2945 /* ofproto->stats.rx_packets represents packets that were received on
2946 * some port and we processed internally and dropped (e.g. STP).
2947 * Account for them as if they had been forwarded to OFPP_LOCAL. */
2949 if (stats->tx_packets != UINT64_MAX) {
2950 stats->tx_packets += ofproto->stats.rx_packets;
2953 if (stats->tx_bytes != UINT64_MAX) {
2954 stats->tx_bytes += ofproto->stats.rx_bytes;
2956 ovs_mutex_unlock(&ofproto->stats_mutex);
2962 struct port_dump_state {
2967 struct ofproto_port port;
2972 port_dump_start(const struct ofproto *ofproto_ OVS_UNUSED, void **statep)
2974 *statep = xzalloc(sizeof(struct port_dump_state));
2979 port_dump_next(const struct ofproto *ofproto_, void *state_,
2980 struct ofproto_port *port)
2982 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2983 struct port_dump_state *state = state_;
2984 const struct sset *sset;
2985 struct sset_node *node;
2987 if (state->has_port) {
2988 ofproto_port_destroy(&state->port);
2989 state->has_port = false;
2991 sset = state->ghost ? &ofproto->ghost_ports : &ofproto->ports;
2992 while ((node = sset_at_position(sset, &state->bucket, &state->offset))) {
2995 error = port_query_by_name(ofproto_, node->name, &state->port);
2997 *port = state->port;
2998 state->has_port = true;
3000 } else if (error != ENODEV) {
3005 if (!state->ghost) {
3006 state->ghost = true;
3009 return port_dump_next(ofproto_, state_, port);
3016 port_dump_done(const struct ofproto *ofproto_ OVS_UNUSED, void *state_)
3018 struct port_dump_state *state = state_;
3020 if (state->has_port) {
3021 ofproto_port_destroy(&state->port);
3028 port_poll(const struct ofproto *ofproto_, char **devnamep)
3030 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3032 if (ofproto->port_poll_errno) {
3033 int error = ofproto->port_poll_errno;
3034 ofproto->port_poll_errno = 0;
3038 if (sset_is_empty(&ofproto->port_poll_set)) {
3042 *devnamep = sset_pop(&ofproto->port_poll_set);
3047 port_poll_wait(const struct ofproto *ofproto_)
3049 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3050 dpif_port_poll_wait(ofproto->backer->dpif);
3054 port_is_lacp_current(const struct ofport *ofport_)
3056 const struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
3057 return (ofport->bundle && ofport->bundle->lacp
3058 ? lacp_slave_is_current(ofport->bundle->lacp, ofport)
3062 /* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules,
3063 * then delete it entirely. */
3065 rule_expire(struct rule_dpif *rule)
3066 OVS_REQUIRES(ofproto_mutex)
3068 uint16_t hard_timeout, idle_timeout;
3069 long long int now = time_msec();
3072 ovs_assert(!rule->up.pending);
3074 hard_timeout = rule->up.hard_timeout;
3075 idle_timeout = rule->up.idle_timeout;
3077 /* Has 'rule' expired? */
3079 long long int modified;
3081 ovs_mutex_lock(&rule->up.mutex);
3082 modified = rule->up.modified;
3083 ovs_mutex_unlock(&rule->up.mutex);
3085 if (now > modified + hard_timeout * 1000) {
3086 reason = OFPRR_HARD_TIMEOUT;
3090 if (reason < 0 && idle_timeout) {
3093 ovs_mutex_lock(&rule->stats_mutex);
3094 used = rule->stats.used;
3095 ovs_mutex_unlock(&rule->stats_mutex);
3097 if (now > used + idle_timeout * 1000) {
3098 reason = OFPRR_IDLE_TIMEOUT;
3103 COVERAGE_INC(ofproto_dpif_expired);
3104 ofproto_rule_expire(&rule->up, reason);
3108 /* Executes, within 'ofproto', the actions in 'rule' or 'ofpacts' on 'packet'.
3109 * 'flow' must reflect the data in 'packet'. */
3111 ofproto_dpif_execute_actions(struct ofproto_dpif *ofproto,
3112 const struct flow *flow,
3113 struct rule_dpif *rule,
3114 const struct ofpact *ofpacts, size_t ofpacts_len,
3115 struct ofpbuf *packet)
3117 struct dpif_flow_stats stats;
3118 struct xlate_out xout;
3119 struct xlate_in xin;
3121 struct dpif_execute execute;
3124 ovs_assert((rule != NULL) != (ofpacts != NULL));
3126 dpif_flow_stats_extract(flow, packet, time_msec(), &stats);
3129 rule_dpif_credit_stats(rule, &stats);
3132 xlate_in_init(&xin, ofproto, flow, rule, stats.tcp_flags, packet);
3133 xin.ofpacts = ofpacts;
3134 xin.ofpacts_len = ofpacts_len;
3135 xin.resubmit_stats = &stats;
3136 xlate_actions(&xin, &xout);
3138 in_port = flow->in_port.ofp_port;
3139 if (in_port == OFPP_NONE) {
3140 in_port = OFPP_LOCAL;
3142 execute.actions = ofpbuf_data(&xout.odp_actions);
3143 execute.actions_len = ofpbuf_size(&xout.odp_actions);
3144 execute.packet = packet;
3145 execute.md.tunnel = flow->tunnel;
3146 execute.md.skb_priority = flow->skb_priority;
3147 execute.md.pkt_mark = flow->pkt_mark;
3148 execute.md.in_port.odp_port = ofp_port_to_odp_port(ofproto, in_port);
3149 execute.needs_help = (xout.slow & SLOW_ACTION) != 0;
3151 error = dpif_execute(ofproto->backer->dpif, &execute);
3153 xlate_out_uninit(&xout);
3159 rule_dpif_credit_stats(struct rule_dpif *rule,
3160 const struct dpif_flow_stats *stats)
3162 ovs_mutex_lock(&rule->stats_mutex);
3163 rule->stats.n_packets += stats->n_packets;
3164 rule->stats.n_bytes += stats->n_bytes;
3165 rule->stats.used = MAX(rule->stats.used, stats->used);
3166 ovs_mutex_unlock(&rule->stats_mutex);
3170 rule_dpif_get_flow_cookie(const struct rule_dpif *rule)
3171 OVS_REQUIRES(rule->up.mutex)
3173 return rule->up.flow_cookie;
3177 rule_dpif_reduce_timeouts(struct rule_dpif *rule, uint16_t idle_timeout,
3178 uint16_t hard_timeout)
3180 ofproto_rule_reduce_timeouts(&rule->up, idle_timeout, hard_timeout);
3183 /* Returns 'rule''s actions. The caller owns a reference on the returned
3184 * actions and must eventually release it (with rule_actions_unref()) to avoid
3186 const struct rule_actions *
3187 rule_dpif_get_actions(const struct rule_dpif *rule)
3189 return rule_get_actions(&rule->up);
3192 /* Lookup 'flow' in table 0 of 'ofproto''s classifier.
3193 * If 'wc' is non-null, sets the fields that were relevant as part of
3194 * the lookup. Returns the table_id where a match or miss occurred.
3196 * The return value will be zero unless there was a miss and
3197 * OFPTC11_TABLE_MISS_CONTINUE is in effect for the sequence of tables
3198 * where misses occur.
3200 * The rule is returned in '*rule', which is valid at least until the next
3201 * RCU quiescent period. If the '*rule' needs to stay around longer,
3202 * a non-zero 'take_ref' must be passed in to cause a reference to be taken
3203 * on it before this returns. */
3205 rule_dpif_lookup(struct ofproto_dpif *ofproto, struct flow *flow,
3206 struct flow_wildcards *wc, struct rule_dpif **rule,
3209 enum rule_dpif_lookup_verdict verdict;
3210 enum ofputil_port_config config = 0;
3213 if (ofproto_dpif_get_enable_recirc(ofproto)) {
3214 /* Always exactly match recirc_id since datapath supports
3217 wc->masks.recirc_id = UINT32_MAX;
3220 /* Start looking up from internal table for post recirculation flows
3221 * or packets. We can also simply send all, including normal flows
3222 * or packets to the internal table. They will not match any post
3223 * recirculation rules except the 'catch all' rule that resubmit
3226 * As an optimization, we send normal flows and packets to table 0
3227 * directly, saving one table lookup. */
3228 table_id = flow->recirc_id ? TBL_INTERNAL : 0;
3233 verdict = rule_dpif_lookup_from_table(ofproto, flow, wc, true,
3234 &table_id, rule, take_ref);
3237 case RULE_DPIF_LOOKUP_VERDICT_MATCH:
3239 case RULE_DPIF_LOOKUP_VERDICT_CONTROLLER: {
3240 struct ofport_dpif *port;
3242 port = get_ofp_port(ofproto, flow->in_port.ofp_port);
3244 VLOG_WARN_RL(&rl, "packet-in on unknown OpenFlow port %"PRIu16,
3245 flow->in_port.ofp_port);
3247 config = port ? port->up.pp.config : 0;
3250 case RULE_DPIF_LOOKUP_VERDICT_DROP:
3251 config = OFPUTIL_PC_NO_PACKET_IN;
3253 case RULE_DPIF_LOOKUP_VERDICT_DEFAULT:
3254 if (!connmgr_wants_packet_in_on_miss(ofproto->up.connmgr)) {
3255 config = OFPUTIL_PC_NO_PACKET_IN;
3262 choose_miss_rule(config, ofproto->miss_rule,
3263 ofproto->no_packet_in_rule, rule, take_ref);
3267 /* The returned rule is valid at least until the next RCU quiescent period.
3268 * If the '*rule' needs to stay around longer, a non-zero 'take_ref' must be
3269 * passed in to cause a reference to be taken on it before this returns. */
3270 static struct rule_dpif *
3271 rule_dpif_lookup_in_table(struct ofproto_dpif *ofproto, uint8_t table_id,
3272 const struct flow *flow, struct flow_wildcards *wc,
3275 struct classifier *cls = &ofproto->up.tables[table_id].cls;
3276 const struct cls_rule *cls_rule;
3277 struct rule_dpif *rule;
3279 fat_rwlock_rdlock(&cls->rwlock);
3280 if (ofproto->up.frag_handling != OFPC_FRAG_NX_MATCH) {
3282 memset(&wc->masks.dl_type, 0xff, sizeof wc->masks.dl_type);
3283 if (is_ip_any(flow)) {
3284 wc->masks.nw_frag |= FLOW_NW_FRAG_MASK;
3288 if (flow->nw_frag & FLOW_NW_FRAG_ANY) {
3289 if (ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
3290 /* We must pretend that transport ports are unavailable. */
3291 struct flow ofpc_normal_flow = *flow;
3292 ofpc_normal_flow.tp_src = htons(0);
3293 ofpc_normal_flow.tp_dst = htons(0);
3294 cls_rule = classifier_lookup(cls, &ofpc_normal_flow, wc);
3296 /* Must be OFPC_FRAG_DROP (we don't have OFPC_FRAG_REASM). */
3297 cls_rule = &ofproto->drop_frags_rule->up.cr;
3300 cls_rule = classifier_lookup(cls, flow, wc);
3303 cls_rule = classifier_lookup(cls, flow, wc);
3306 rule = rule_dpif_cast(rule_from_cls_rule(cls_rule));
3308 rule_dpif_ref(rule);
3310 fat_rwlock_unlock(&cls->rwlock);
3315 /* Look up 'flow' in 'ofproto''s classifier starting from table '*table_id'.
3316 * Stores the rule that was found in '*rule', or NULL if none was found.
3317 * Updates 'wc', if nonnull, to reflect the fields that were used during the
3320 * If 'honor_table_miss' is true, the first lookup occurs in '*table_id', but
3321 * if none is found then the table miss configuration for that table is
3322 * honored, which can result in additional lookups in other OpenFlow tables.
3323 * In this case the function updates '*table_id' to reflect the final OpenFlow
3324 * table that was searched.
3326 * If 'honor_table_miss' is false, then only one table lookup occurs, in
3331 * - RULE_DPIF_LOOKUP_VERDICT_MATCH if a rule (in '*rule') was found.
3333 * - RULE_OFPTC_TABLE_MISS_CONTROLLER if no rule was found and either:
3334 * + 'honor_table_miss' is false
3335 * + a table miss configuration specified that the packet should be
3336 * sent to the controller in this case.
3338 * - RULE_DPIF_LOOKUP_VERDICT_DROP if no rule was found, 'honor_table_miss'
3339 * is true and a table miss configuration specified that the packet
3340 * should be dropped in this case.
3342 * - RULE_DPIF_LOOKUP_VERDICT_DEFAULT if no rule was found,
3343 * 'honor_table_miss' is true and a table miss configuration has
3344 * not been specified in this case.
3346 * The rule is returned in '*rule', which is valid at least until the next
3347 * RCU quiescent period. If the '*rule' needs to stay around longer,
3348 * a non-zero 'take_ref' must be passed in to cause a reference to be taken
3349 * on it before this returns. */
3350 enum rule_dpif_lookup_verdict
3351 rule_dpif_lookup_from_table(struct ofproto_dpif *ofproto,
3352 const struct flow *flow,
3353 struct flow_wildcards *wc,
3354 bool honor_table_miss,
3355 uint8_t *table_id, struct rule_dpif **rule,
3360 for (next_id = *table_id;
3361 next_id < ofproto->up.n_tables;
3362 next_id++, next_id += (next_id == TBL_INTERNAL))
3364 *table_id = next_id;
3365 *rule = rule_dpif_lookup_in_table(ofproto, *table_id, flow, wc,
3368 return RULE_DPIF_LOOKUP_VERDICT_MATCH;
3369 } else if (!honor_table_miss) {
3370 return RULE_DPIF_LOOKUP_VERDICT_CONTROLLER;
3372 switch (ofproto_table_get_config(&ofproto->up, *table_id)) {
3373 case OFPROTO_TABLE_MISS_CONTINUE:
3376 case OFPROTO_TABLE_MISS_CONTROLLER:
3377 return RULE_DPIF_LOOKUP_VERDICT_CONTROLLER;
3379 case OFPROTO_TABLE_MISS_DROP:
3380 return RULE_DPIF_LOOKUP_VERDICT_DROP;
3382 case OFPROTO_TABLE_MISS_DEFAULT:
3383 return RULE_DPIF_LOOKUP_VERDICT_DEFAULT;
3388 return RULE_DPIF_LOOKUP_VERDICT_CONTROLLER;
3391 /* Given a port configuration (specified as zero if there's no port), chooses
3392 * which of 'miss_rule' and 'no_packet_in_rule' should be used in case of a
3395 * The rule is returned in '*rule', which is valid at least until the next
3396 * RCU quiescent period. If the '*rule' needs to stay around longer,
3397 * a reference must be taken on it (rule_dpif_ref()).
3400 choose_miss_rule(enum ofputil_port_config config, struct rule_dpif *miss_rule,
3401 struct rule_dpif *no_packet_in_rule, struct rule_dpif **rule,
3404 *rule = config & OFPUTIL_PC_NO_PACKET_IN ? no_packet_in_rule : miss_rule;
3406 rule_dpif_ref(*rule);
3411 complete_operation(struct rule_dpif *rule)
3412 OVS_REQUIRES(ofproto_mutex)
3414 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
3416 ofproto->backer->need_revalidate = REV_FLOW_TABLE;
3417 ofoperation_complete(rule->up.pending, 0);
3420 static struct rule_dpif *rule_dpif_cast(const struct rule *rule)
3422 return rule ? CONTAINER_OF(rule, struct rule_dpif, up) : NULL;
3425 static struct rule *
3428 struct rule_dpif *rule = xmalloc(sizeof *rule);
3433 rule_dealloc(struct rule *rule_)
3435 struct rule_dpif *rule = rule_dpif_cast(rule_);
3440 rule_construct(struct rule *rule_)
3441 OVS_NO_THREAD_SAFETY_ANALYSIS
3443 struct rule_dpif *rule = rule_dpif_cast(rule_);
3444 ovs_mutex_init_adaptive(&rule->stats_mutex);
3445 rule->stats.n_packets = 0;
3446 rule->stats.n_bytes = 0;
3447 rule->stats.used = rule->up.modified;
3452 rule_insert(struct rule *rule_)
3453 OVS_REQUIRES(ofproto_mutex)
3455 struct rule_dpif *rule = rule_dpif_cast(rule_);
3456 complete_operation(rule);
3460 rule_delete(struct rule *rule_)
3461 OVS_REQUIRES(ofproto_mutex)
3463 struct rule_dpif *rule = rule_dpif_cast(rule_);
3464 complete_operation(rule);
3468 rule_destruct(struct rule *rule_)
3470 struct rule_dpif *rule = rule_dpif_cast(rule_);
3471 ovs_mutex_destroy(&rule->stats_mutex);
3475 rule_get_stats(struct rule *rule_, uint64_t *packets, uint64_t *bytes,
3476 long long int *used)
3478 struct rule_dpif *rule = rule_dpif_cast(rule_);
3480 ovs_mutex_lock(&rule->stats_mutex);
3481 *packets = rule->stats.n_packets;
3482 *bytes = rule->stats.n_bytes;
3483 *used = rule->stats.used;
3484 ovs_mutex_unlock(&rule->stats_mutex);
3488 rule_dpif_execute(struct rule_dpif *rule, const struct flow *flow,
3489 struct ofpbuf *packet)
3491 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
3493 ofproto_dpif_execute_actions(ofproto, flow, rule, NULL, 0, packet);
3497 rule_execute(struct rule *rule, const struct flow *flow,
3498 struct ofpbuf *packet)
3500 rule_dpif_execute(rule_dpif_cast(rule), flow, packet);
3501 ofpbuf_delete(packet);
3506 rule_modify_actions(struct rule *rule_, bool reset_counters)
3507 OVS_REQUIRES(ofproto_mutex)
3509 struct rule_dpif *rule = rule_dpif_cast(rule_);
3511 if (reset_counters) {
3512 ovs_mutex_lock(&rule->stats_mutex);
3513 rule->stats.n_packets = 0;
3514 rule->stats.n_bytes = 0;
3515 ovs_mutex_unlock(&rule->stats_mutex);
3518 complete_operation(rule);
3521 static struct group_dpif *group_dpif_cast(const struct ofgroup *group)
3523 return group ? CONTAINER_OF(group, struct group_dpif, up) : NULL;
3526 static struct ofgroup *
3529 struct group_dpif *group = xzalloc(sizeof *group);
3534 group_dealloc(struct ofgroup *group_)
3536 struct group_dpif *group = group_dpif_cast(group_);
3541 group_construct_stats(struct group_dpif *group)
3542 OVS_REQUIRES(group->stats_mutex)
3544 group->packet_count = 0;
3545 group->byte_count = 0;
3546 if (!group->bucket_stats) {
3547 group->bucket_stats = xcalloc(group->up.n_buckets,
3548 sizeof *group->bucket_stats);
3550 memset(group->bucket_stats, 0, group->up.n_buckets *
3551 sizeof *group->bucket_stats);
3556 group_construct(struct ofgroup *group_)
3558 struct group_dpif *group = group_dpif_cast(group_);
3559 const struct ofputil_bucket *bucket;
3561 /* Prevent group chaining because our locking structure makes it hard to
3562 * implement deadlock-free. (See xlate_group_resource_check().) */
3563 LIST_FOR_EACH (bucket, list_node, &group->up.buckets) {
3564 const struct ofpact *a;
3566 OFPACT_FOR_EACH (a, bucket->ofpacts, bucket->ofpacts_len) {
3567 if (a->type == OFPACT_GROUP) {
3568 return OFPERR_OFPGMFC_CHAINING_UNSUPPORTED;
3573 ovs_mutex_init_adaptive(&group->stats_mutex);
3574 ovs_mutex_lock(&group->stats_mutex);
3575 group_construct_stats(group);
3576 ovs_mutex_unlock(&group->stats_mutex);
3581 group_destruct__(struct group_dpif *group)
3582 OVS_REQUIRES(group->stats_mutex)
3584 free(group->bucket_stats);
3585 group->bucket_stats = NULL;
3589 group_destruct(struct ofgroup *group_)
3591 struct group_dpif *group = group_dpif_cast(group_);
3592 ovs_mutex_lock(&group->stats_mutex);
3593 group_destruct__(group);
3594 ovs_mutex_unlock(&group->stats_mutex);
3595 ovs_mutex_destroy(&group->stats_mutex);
3599 group_modify(struct ofgroup *group_, struct ofgroup *victim_)
3601 struct ofproto_dpif *ofproto = ofproto_dpif_cast(group_->ofproto);
3602 struct group_dpif *group = group_dpif_cast(group_);
3603 struct group_dpif *victim = group_dpif_cast(victim_);
3605 ovs_mutex_lock(&group->stats_mutex);
3606 if (victim->up.n_buckets < group->up.n_buckets) {
3607 group_destruct__(group);
3609 group_construct_stats(group);
3610 ovs_mutex_unlock(&group->stats_mutex);
3612 ofproto->backer->need_revalidate = REV_FLOW_TABLE;
3618 group_get_stats(const struct ofgroup *group_, struct ofputil_group_stats *ogs)
3620 struct group_dpif *group = group_dpif_cast(group_);
3622 ovs_mutex_lock(&group->stats_mutex);
3623 ogs->packet_count = group->packet_count;
3624 ogs->byte_count = group->byte_count;
3625 memcpy(ogs->bucket_stats, group->bucket_stats,
3626 group->up.n_buckets * sizeof *group->bucket_stats);
3627 ovs_mutex_unlock(&group->stats_mutex);
3633 group_dpif_lookup(struct ofproto_dpif *ofproto, uint32_t group_id,
3634 struct group_dpif **group)
3635 OVS_TRY_RDLOCK(true, (*group)->up.rwlock)
3637 struct ofgroup *ofgroup;
3641 found = ofproto_group_lookup(&ofproto->up, group_id, &ofgroup);
3642 *group = found ? group_dpif_cast(ofgroup) : NULL;
3648 group_dpif_release(struct group_dpif *group)
3649 OVS_RELEASES(group->up.rwlock)
3651 ofproto_group_release(&group->up);
3655 group_dpif_get_buckets(const struct group_dpif *group,
3656 const struct list **buckets)
3658 *buckets = &group->up.buckets;
3661 enum ofp11_group_type
3662 group_dpif_get_type(const struct group_dpif *group)
3664 return group->up.type;
3667 /* Sends 'packet' out 'ofport'.
3668 * May modify 'packet'.
3669 * Returns 0 if successful, otherwise a positive errno value. */
3671 ofproto_dpif_send_packet(const struct ofport_dpif *ofport, struct ofpbuf *packet)
3673 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
3676 error = xlate_send_packet(ofport, packet);
3678 ovs_mutex_lock(&ofproto->stats_mutex);
3679 ofproto->stats.tx_packets++;
3680 ofproto->stats.tx_bytes += ofpbuf_size(packet);
3681 ovs_mutex_unlock(&ofproto->stats_mutex);
3686 set_frag_handling(struct ofproto *ofproto_,
3687 enum ofp_config_flags frag_handling)
3689 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3690 if (frag_handling != OFPC_FRAG_REASM) {
3691 ofproto->backer->need_revalidate = REV_RECONFIGURE;
3699 packet_out(struct ofproto *ofproto_, struct ofpbuf *packet,
3700 const struct flow *flow,
3701 const struct ofpact *ofpacts, size_t ofpacts_len)
3703 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3705 ofproto_dpif_execute_actions(ofproto, flow, NULL, ofpacts,
3706 ofpacts_len, packet);
3713 set_netflow(struct ofproto *ofproto_,
3714 const struct netflow_options *netflow_options)
3716 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3718 if (netflow_options) {
3719 if (!ofproto->netflow) {
3720 ofproto->netflow = netflow_create();
3721 ofproto->backer->need_revalidate = REV_RECONFIGURE;
3723 return netflow_set_options(ofproto->netflow, netflow_options);
3724 } else if (ofproto->netflow) {
3725 ofproto->backer->need_revalidate = REV_RECONFIGURE;
3726 netflow_unref(ofproto->netflow);
3727 ofproto->netflow = NULL;
3734 get_netflow_ids(const struct ofproto *ofproto_,
3735 uint8_t *engine_type, uint8_t *engine_id)
3737 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3739 dpif_get_netflow_ids(ofproto->backer->dpif, engine_type, engine_id);
3742 static struct ofproto_dpif *
3743 ofproto_dpif_lookup(const char *name)
3745 struct ofproto_dpif *ofproto;
3747 HMAP_FOR_EACH_WITH_HASH (ofproto, all_ofproto_dpifs_node,
3748 hash_string(name, 0), &all_ofproto_dpifs) {
3749 if (!strcmp(ofproto->up.name, name)) {
3757 ofproto_unixctl_fdb_flush(struct unixctl_conn *conn, int argc,
3758 const char *argv[], void *aux OVS_UNUSED)
3760 struct ofproto_dpif *ofproto;
3763 ofproto = ofproto_dpif_lookup(argv[1]);
3765 unixctl_command_reply_error(conn, "no such bridge");
3768 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
3769 mac_learning_flush(ofproto->ml);
3770 ovs_rwlock_unlock(&ofproto->ml->rwlock);
3772 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
3773 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
3774 mac_learning_flush(ofproto->ml);
3775 ovs_rwlock_unlock(&ofproto->ml->rwlock);
3779 unixctl_command_reply(conn, "table successfully flushed");
3782 static struct ofport_dpif *
3783 ofbundle_get_a_port(const struct ofbundle *bundle)
3785 return CONTAINER_OF(list_front(&bundle->ports), struct ofport_dpif,
3790 ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
3791 const char *argv[], void *aux OVS_UNUSED)
3793 struct ds ds = DS_EMPTY_INITIALIZER;
3794 const struct ofproto_dpif *ofproto;
3795 const struct mac_entry *e;
3797 ofproto = ofproto_dpif_lookup(argv[1]);
3799 unixctl_command_reply_error(conn, "no such bridge");
3803 ds_put_cstr(&ds, " port VLAN MAC Age\n");
3804 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
3805 LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
3806 struct ofbundle *bundle = e->port.p;
3807 char name[OFP_MAX_PORT_NAME_LEN];
3809 ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
3811 ds_put_format(&ds, "%5s %4d "ETH_ADDR_FMT" %3d\n",
3812 name, e->vlan, ETH_ADDR_ARGS(e->mac),
3813 mac_entry_age(ofproto->ml, e));
3815 ovs_rwlock_unlock(&ofproto->ml->rwlock);
3816 unixctl_command_reply(conn, ds_cstr(&ds));
3821 struct xlate_out xout;
3822 struct xlate_in xin;
3823 const struct flow *key;
3825 struct flow_wildcards wc;
3830 trace_format_rule(struct ds *result, int level, const struct rule_dpif *rule)
3832 const struct rule_actions *actions;
3835 ds_put_char_multiple(result, '\t', level);
3837 ds_put_cstr(result, "No match\n");
3841 ovs_mutex_lock(&rule->up.mutex);
3842 cookie = rule->up.flow_cookie;
3843 ovs_mutex_unlock(&rule->up.mutex);
3845 ds_put_format(result, "Rule: table=%"PRIu8" cookie=%#"PRIx64" ",
3846 rule ? rule->up.table_id : 0, ntohll(cookie));
3847 cls_rule_format(&rule->up.cr, result);
3848 ds_put_char(result, '\n');
3850 actions = rule_dpif_get_actions(rule);
3852 ds_put_char_multiple(result, '\t', level);
3853 ds_put_cstr(result, "OpenFlow actions=");
3854 ofpacts_format(actions->ofpacts, actions->ofpacts_len, result);
3855 ds_put_char(result, '\n');
3859 trace_format_flow(struct ds *result, int level, const char *title,
3860 struct trace_ctx *trace)
3862 ds_put_char_multiple(result, '\t', level);
3863 ds_put_format(result, "%s: ", title);
3864 /* Do not report unchanged flows for resubmits. */
3865 if ((level > 0 && flow_equal(&trace->xin.flow, &trace->flow))
3866 || (level == 0 && flow_equal(&trace->xin.flow, trace->key))) {
3867 ds_put_cstr(result, "unchanged");
3869 flow_format(result, &trace->xin.flow);
3870 trace->flow = trace->xin.flow;
3872 ds_put_char(result, '\n');
3876 trace_format_regs(struct ds *result, int level, const char *title,
3877 struct trace_ctx *trace)
3881 ds_put_char_multiple(result, '\t', level);
3882 ds_put_format(result, "%s:", title);
3883 for (i = 0; i < FLOW_N_REGS; i++) {
3884 ds_put_format(result, " reg%"PRIuSIZE"=0x%"PRIx32, i, trace->flow.regs[i]);
3886 ds_put_char(result, '\n');
3890 trace_format_odp(struct ds *result, int level, const char *title,
3891 struct trace_ctx *trace)
3893 struct ofpbuf *odp_actions = &trace->xout.odp_actions;
3895 ds_put_char_multiple(result, '\t', level);
3896 ds_put_format(result, "%s: ", title);
3897 format_odp_actions(result, ofpbuf_data(odp_actions),
3898 ofpbuf_size(odp_actions));
3899 ds_put_char(result, '\n');
3903 trace_format_megaflow(struct ds *result, int level, const char *title,
3904 struct trace_ctx *trace)
3908 ds_put_char_multiple(result, '\t', level);
3909 ds_put_format(result, "%s: ", title);
3910 flow_wildcards_or(&trace->wc, &trace->xout.wc, &trace->wc);
3911 match_init(&match, trace->key, &trace->wc);
3912 match_format(&match, result, OFP_DEFAULT_PRIORITY);
3913 ds_put_char(result, '\n');
3917 trace_resubmit(struct xlate_in *xin, struct rule_dpif *rule, int recurse)
3919 struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
3920 struct ds *result = trace->result;
3922 ds_put_char(result, '\n');
3923 trace_format_flow(result, recurse + 1, "Resubmitted flow", trace);
3924 trace_format_regs(result, recurse + 1, "Resubmitted regs", trace);
3925 trace_format_odp(result, recurse + 1, "Resubmitted odp", trace);
3926 trace_format_megaflow(result, recurse + 1, "Resubmitted megaflow", trace);
3927 trace_format_rule(result, recurse + 1, rule);
3931 trace_report(struct xlate_in *xin, const char *s, int recurse)
3933 struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
3934 struct ds *result = trace->result;
3936 ds_put_char_multiple(result, '\t', recurse);
3937 ds_put_cstr(result, s);
3938 ds_put_char(result, '\n');
3941 /* Parses the 'argc' elements of 'argv', ignoring argv[0]. The following
3942 * forms are supported:
3944 * - [dpname] odp_flow [-generate | packet]
3945 * - bridge br_flow [-generate | packet]
3947 * On success, initializes '*ofprotop' and 'flow' and returns NULL. On failure
3948 * returns a nonnull malloced error message. */
3949 static char * WARN_UNUSED_RESULT
3950 parse_flow_and_packet(int argc, const char *argv[],
3951 struct ofproto_dpif **ofprotop, struct flow *flow,
3952 struct ofpbuf **packetp)
3954 const struct dpif_backer *backer = NULL;
3955 const char *error = NULL;
3957 struct simap port_names = SIMAP_INITIALIZER(&port_names);
3958 struct ofpbuf *packet;
3959 struct ofpbuf odp_key;
3960 struct ofpbuf odp_mask;
3962 ofpbuf_init(&odp_key, 0);
3963 ofpbuf_init(&odp_mask, 0);
3965 /* Handle "-generate" or a hex string as the last argument. */
3966 if (!strcmp(argv[argc - 1], "-generate")) {
3967 packet = ofpbuf_new(0);
3970 error = eth_from_hex(argv[argc - 1], &packet);
3973 } else if (argc == 4) {
3974 /* The 3-argument form must end in "-generate' or a hex string. */
3980 /* odp_flow can have its in_port specified as a name instead of port no.
3981 * We do not yet know whether a given flow is a odp_flow or a br_flow.
3982 * But, to know whether a flow is odp_flow through odp_flow_from_string(),
3983 * we need to create a simap of name to port no. */
3985 const char *dp_type;
3986 if (!strncmp(argv[1], "ovs-", 4)) {
3987 dp_type = argv[1] + 4;
3991 backer = shash_find_data(&all_dpif_backers, dp_type);
3992 } else if (argc == 2) {
3993 struct shash_node *node;
3994 if (shash_count(&all_dpif_backers) == 1) {
3995 node = shash_first(&all_dpif_backers);
3996 backer = node->data;
3999 error = "Syntax error";
4002 if (backer && backer->dpif) {
4003 struct dpif_port dpif_port;
4004 struct dpif_port_dump port_dump;
4005 DPIF_PORT_FOR_EACH (&dpif_port, &port_dump, backer->dpif) {
4006 simap_put(&port_names, dpif_port.name,
4007 odp_to_u32(dpif_port.port_no));
4011 /* Parse the flow and determine whether a datapath or
4012 * bridge is specified. If function odp_flow_key_from_string()
4013 * returns 0, the flow is a odp_flow. If function
4014 * parse_ofp_exact_flow() returns NULL, the flow is a br_flow. */
4015 if (!odp_flow_from_string(argv[argc - 1], &port_names,
4016 &odp_key, &odp_mask)) {
4018 error = "Cannot find the datapath";
4022 if (xlate_receive(backer, NULL, ofpbuf_data(&odp_key),
4023 ofpbuf_size(&odp_key), flow,
4024 ofprotop, NULL, NULL, NULL, NULL)) {
4025 error = "Invalid datapath flow";
4029 char *err = parse_ofp_exact_flow(flow, NULL, argv[argc - 1], NULL);
4032 m_err = xasprintf("Bad flow syntax: %s", err);
4037 error = "Must specify bridge name";
4041 *ofprotop = ofproto_dpif_lookup(argv[1]);
4043 error = "Unknown bridge name";
4049 /* Generate a packet, if requested. */
4051 if (!ofpbuf_size(packet)) {
4052 flow_compose(packet, flow);
4054 struct pkt_metadata md = pkt_metadata_from_flow(flow);
4056 /* Use the metadata from the flow and the packet argument
4057 * to reconstruct the flow. */
4058 flow_extract(packet, &md, flow);
4063 if (error && !m_err) {
4064 m_err = xstrdup(error);
4067 ofpbuf_delete(packet);
4071 ofpbuf_uninit(&odp_key);
4072 ofpbuf_uninit(&odp_mask);
4073 simap_destroy(&port_names);
4078 ofproto_unixctl_trace(struct unixctl_conn *conn, int argc, const char *argv[],
4079 void *aux OVS_UNUSED)
4081 struct ofproto_dpif *ofproto;
4082 struct ofpbuf *packet;
4086 error = parse_flow_and_packet(argc, argv, &ofproto, &flow, &packet);
4091 ofproto_trace(ofproto, &flow, packet, NULL, 0, &result);
4092 unixctl_command_reply(conn, ds_cstr(&result));
4093 ds_destroy(&result);
4094 ofpbuf_delete(packet);
4096 unixctl_command_reply_error(conn, error);
4102 ofproto_unixctl_trace_actions(struct unixctl_conn *conn, int argc,
4103 const char *argv[], void *aux OVS_UNUSED)
4105 enum ofputil_protocol usable_protocols;
4106 struct ofproto_dpif *ofproto;
4107 bool enforce_consistency;
4108 struct ofpbuf ofpacts;
4109 struct ofpbuf *packet;
4114 /* Three kinds of error return values! */
4120 ofpbuf_init(&ofpacts, 0);
4122 /* Parse actions. */
4123 error = parse_ofpacts(argv[--argc], &ofpacts, &usable_protocols);
4125 unixctl_command_reply_error(conn, error);
4130 /* OpenFlow 1.1 and later suggest that the switch enforces certain forms of
4131 * consistency between the flow and the actions. With -consistent, we
4132 * enforce consistency even for a flow supported in OpenFlow 1.0. */
4133 if (!strcmp(argv[1], "-consistent")) {
4134 enforce_consistency = true;
4138 enforce_consistency = false;
4141 error = parse_flow_and_packet(argc, argv, &ofproto, &flow, &packet);
4143 unixctl_command_reply_error(conn, error);
4148 /* Do the same checks as handle_packet_out() in ofproto.c.
4150 * We pass a 'table_id' of 0 to ofproto_check_ofpacts(), which isn't
4151 * strictly correct because these actions aren't in any table, but it's OK
4152 * because it 'table_id' is used only to check goto_table instructions, but
4153 * packet-outs take a list of actions and therefore it can't include
4156 * We skip the "meter" check here because meter is an instruction, not an
4157 * action, and thus cannot appear in ofpacts. */
4158 in_port = ofp_to_u16(flow.in_port.ofp_port);
4159 if (in_port >= ofproto->up.max_ports && in_port < ofp_to_u16(OFPP_MAX)) {
4160 unixctl_command_reply_error(conn, "invalid in_port");
4163 if (enforce_consistency) {
4164 retval = ofpacts_check_consistency(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts),
4165 &flow, u16_to_ofp(ofproto->up.max_ports),
4166 0, 0, usable_protocols);
4168 retval = ofpacts_check(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &flow,
4169 u16_to_ofp(ofproto->up.max_ports), 0, 0,
4175 ds_put_format(&result, "Bad actions: %s", ofperr_to_string(retval));
4176 unixctl_command_reply_error(conn, ds_cstr(&result));
4180 ofproto_trace(ofproto, &flow, packet,
4181 ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &result);
4182 unixctl_command_reply(conn, ds_cstr(&result));
4185 ds_destroy(&result);
4186 ofpbuf_delete(packet);
4187 ofpbuf_uninit(&ofpacts);
4190 /* Implements a "trace" through 'ofproto''s flow table, appending a textual
4191 * description of the results to 'ds'.
4193 * The trace follows a packet with the specified 'flow' through the flow
4194 * table. 'packet' may be nonnull to trace an actual packet, with consequent
4195 * side effects (if it is nonnull then its flow must be 'flow').
4197 * If 'ofpacts' is nonnull then its 'ofpacts_len' bytes specify the actions to
4198 * trace, otherwise the actions are determined by a flow table lookup. */
4200 ofproto_trace(struct ofproto_dpif *ofproto, struct flow *flow,
4201 const struct ofpbuf *packet,
4202 const struct ofpact ofpacts[], size_t ofpacts_len,
4205 struct rule_dpif *rule;
4206 struct trace_ctx trace;
4208 ds_put_format(ds, "Bridge: %s\n", ofproto->up.name);
4209 ds_put_cstr(ds, "Flow: ");
4210 flow_format(ds, flow);
4211 ds_put_char(ds, '\n');
4213 flow_wildcards_init_catchall(&trace.wc);
4217 rule_dpif_lookup(ofproto, flow, &trace.wc, &rule, false);
4219 trace_format_rule(ds, 0, rule);
4220 if (rule == ofproto->miss_rule) {
4221 ds_put_cstr(ds, "\nNo match, flow generates \"packet in\"s.\n");
4222 } else if (rule == ofproto->no_packet_in_rule) {
4223 ds_put_cstr(ds, "\nNo match, packets dropped because "
4224 "OFPPC_NO_PACKET_IN is set on in_port.\n");
4225 } else if (rule == ofproto->drop_frags_rule) {
4226 ds_put_cstr(ds, "\nPackets dropped because they are IP fragments "
4227 "and the fragment handling mode is \"drop\".\n");
4231 if (rule || ofpacts) {
4233 trace.key = flow; /* Original flow key, used for megaflow. */
4234 trace.flow = *flow; /* May be modified by actions. */
4235 xlate_in_init(&trace.xin, ofproto, flow, rule, ntohs(flow->tcp_flags),
4238 trace.xin.ofpacts = ofpacts;
4239 trace.xin.ofpacts_len = ofpacts_len;
4241 trace.xin.resubmit_hook = trace_resubmit;
4242 trace.xin.report_hook = trace_report;
4244 xlate_actions(&trace.xin, &trace.xout);
4246 ds_put_char(ds, '\n');
4247 trace_format_flow(ds, 0, "Final flow", &trace);
4248 trace_format_megaflow(ds, 0, "Megaflow", &trace);
4250 ds_put_cstr(ds, "Datapath actions: ");
4251 format_odp_actions(ds, ofpbuf_data(&trace.xout.odp_actions),
4252 ofpbuf_size(&trace.xout.odp_actions));
4254 if (trace.xout.slow) {
4255 enum slow_path_reason slow;
4257 ds_put_cstr(ds, "\nThis flow is handled by the userspace "
4258 "slow path because it:");
4260 slow = trace.xout.slow;
4262 enum slow_path_reason bit = rightmost_1bit(slow);
4264 ds_put_format(ds, "\n\t- %s.",
4265 slow_path_reason_to_explanation(bit));
4271 xlate_out_uninit(&trace.xout);
4275 /* Store the current ofprotos in 'ofproto_shash'. Returns a sorted list
4276 * of the 'ofproto_shash' nodes. It is the responsibility of the caller
4277 * to destroy 'ofproto_shash' and free the returned value. */
4278 static const struct shash_node **
4279 get_ofprotos(struct shash *ofproto_shash)
4281 const struct ofproto_dpif *ofproto;
4283 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
4284 char *name = xasprintf("%s@%s", ofproto->up.type, ofproto->up.name);
4285 shash_add_nocopy(ofproto_shash, name, ofproto);
4288 return shash_sort(ofproto_shash);
4292 ofproto_unixctl_dpif_dump_dps(struct unixctl_conn *conn, int argc OVS_UNUSED,
4293 const char *argv[] OVS_UNUSED,
4294 void *aux OVS_UNUSED)
4296 struct ds ds = DS_EMPTY_INITIALIZER;
4297 struct shash ofproto_shash;
4298 const struct shash_node **sorted_ofprotos;
4301 shash_init(&ofproto_shash);
4302 sorted_ofprotos = get_ofprotos(&ofproto_shash);
4303 for (i = 0; i < shash_count(&ofproto_shash); i++) {
4304 const struct shash_node *node = sorted_ofprotos[i];
4305 ds_put_format(&ds, "%s\n", node->name);
4308 shash_destroy(&ofproto_shash);
4309 free(sorted_ofprotos);
4311 unixctl_command_reply(conn, ds_cstr(&ds));
4316 dpif_show_backer(const struct dpif_backer *backer, struct ds *ds)
4318 const struct shash_node **ofprotos;
4319 struct dpif_dp_stats dp_stats;
4320 struct shash ofproto_shash;
4323 dpif_get_dp_stats(backer->dpif, &dp_stats);
4325 ds_put_format(ds, "%s: hit:%"PRIu64" missed:%"PRIu64"\n",
4326 dpif_name(backer->dpif), dp_stats.n_hit, dp_stats.n_missed);
4328 shash_init(&ofproto_shash);
4329 ofprotos = get_ofprotos(&ofproto_shash);
4330 for (i = 0; i < shash_count(&ofproto_shash); i++) {
4331 struct ofproto_dpif *ofproto = ofprotos[i]->data;
4332 const struct shash_node **ports;
4335 if (ofproto->backer != backer) {
4339 ds_put_format(ds, "\t%s:\n", ofproto->up.name);
4341 ports = shash_sort(&ofproto->up.port_by_name);
4342 for (j = 0; j < shash_count(&ofproto->up.port_by_name); j++) {
4343 const struct shash_node *node = ports[j];
4344 struct ofport *ofport = node->data;
4346 odp_port_t odp_port;
4348 ds_put_format(ds, "\t\t%s %u/", netdev_get_name(ofport->netdev),
4351 odp_port = ofp_port_to_odp_port(ofproto, ofport->ofp_port);
4352 if (odp_port != ODPP_NONE) {
4353 ds_put_format(ds, "%"PRIu32":", odp_port);
4355 ds_put_cstr(ds, "none:");
4358 ds_put_format(ds, " (%s", netdev_get_type(ofport->netdev));
4361 if (!netdev_get_config(ofport->netdev, &config)) {
4362 const struct smap_node **nodes;
4365 nodes = smap_sort(&config);
4366 for (i = 0; i < smap_count(&config); i++) {
4367 const struct smap_node *node = nodes[i];
4368 ds_put_format(ds, "%c %s=%s", i ? ',' : ':',
4369 node->key, node->value);
4373 smap_destroy(&config);
4375 ds_put_char(ds, ')');
4376 ds_put_char(ds, '\n');
4380 shash_destroy(&ofproto_shash);
4385 ofproto_unixctl_dpif_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
4386 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
4388 struct ds ds = DS_EMPTY_INITIALIZER;
4389 const struct shash_node **backers;
4392 backers = shash_sort(&all_dpif_backers);
4393 for (i = 0; i < shash_count(&all_dpif_backers); i++) {
4394 dpif_show_backer(backers[i]->data, &ds);
4398 unixctl_command_reply(conn, ds_cstr(&ds));
4403 ofproto_dpif_contains_flow(const struct ofproto_dpif *ofproto,
4404 const struct nlattr *key, size_t key_len)
4406 struct ofproto_dpif *ofp;
4409 xlate_receive(ofproto->backer, NULL, key, key_len, &flow, &ofp,
4410 NULL, NULL, NULL, NULL);
4411 return ofp == ofproto;
4415 ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn,
4416 int argc OVS_UNUSED, const char *argv[],
4417 void *aux OVS_UNUSED)
4419 struct ds ds = DS_EMPTY_INITIALIZER;
4420 const struct dpif_flow_stats *stats;
4421 const struct ofproto_dpif *ofproto;
4422 struct dpif_flow_dump flow_dump;
4423 const struct nlattr *actions;
4424 const struct nlattr *mask;
4425 const struct nlattr *key;
4429 bool verbosity = false;
4430 struct dpif_port dpif_port;
4431 struct dpif_port_dump port_dump;
4432 struct hmap portno_names;
4436 ofproto = ofproto_dpif_lookup(argv[argc - 1]);
4438 unixctl_command_reply_error(conn, "no such bridge");
4442 if (argc > 2 && !strcmp(argv[1], "-m")) {
4446 hmap_init(&portno_names);
4447 DPIF_PORT_FOR_EACH (&dpif_port, &port_dump, ofproto->backer->dpif) {
4448 odp_portno_names_set(&portno_names, dpif_port.port_no, dpif_port.name);
4452 error = dpif_flow_dump_start(&flow_dump, ofproto->backer->dpif);
4456 dpif_flow_dump_state_init(ofproto->backer->dpif, &state);
4457 while (dpif_flow_dump_next(&flow_dump, state, &key, &key_len,
4458 &mask, &mask_len, &actions, &actions_len,
4460 if (!ofproto_dpif_contains_flow(ofproto, key, key_len)) {
4464 odp_flow_format(key, key_len, mask, mask_len, &portno_names, &ds,
4466 ds_put_cstr(&ds, ", ");
4467 dpif_flow_stats_format(stats, &ds);
4468 ds_put_cstr(&ds, ", actions:");
4469 format_odp_actions(&ds, actions, actions_len);
4470 ds_put_char(&ds, '\n');
4472 dpif_flow_dump_state_uninit(ofproto->backer->dpif, state);
4473 error = dpif_flow_dump_done(&flow_dump);
4478 ds_put_format(&ds, "dpif/dump_flows failed: %s", ovs_strerror(errno));
4479 unixctl_command_reply_error(conn, ds_cstr(&ds));
4481 unixctl_command_reply(conn, ds_cstr(&ds));
4483 odp_portno_names_destroy(&portno_names);
4484 hmap_destroy(&portno_names);
4489 ofproto_dpif_unixctl_init(void)
4491 static bool registered;
4497 unixctl_command_register(
4499 "{[dp_name] odp_flow | bridge br_flow} [-generate|packet]",
4500 1, 3, ofproto_unixctl_trace, NULL);
4501 unixctl_command_register(
4502 "ofproto/trace-packet-out",
4503 "[-consistent] {[dp_name] odp_flow | bridge br_flow} [-generate|packet] actions",
4504 2, 6, ofproto_unixctl_trace_actions, NULL);
4505 unixctl_command_register("fdb/flush", "[bridge]", 0, 1,
4506 ofproto_unixctl_fdb_flush, NULL);
4507 unixctl_command_register("fdb/show", "bridge", 1, 1,
4508 ofproto_unixctl_fdb_show, NULL);
4509 unixctl_command_register("dpif/dump-dps", "", 0, 0,
4510 ofproto_unixctl_dpif_dump_dps, NULL);
4511 unixctl_command_register("dpif/show", "", 0, 0, ofproto_unixctl_dpif_show,
4513 unixctl_command_register("dpif/dump-flows", "[-m] bridge", 1, 2,
4514 ofproto_unixctl_dpif_dump_flows, NULL);
4518 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
4520 * This is deprecated. It is only for compatibility with broken device drivers
4521 * in old versions of Linux that do not properly support VLANs when VLAN
4522 * devices are not used. When broken device drivers are no longer in
4523 * widespread use, we will delete these interfaces. */
4526 set_realdev(struct ofport *ofport_, ofp_port_t realdev_ofp_port, int vid)
4528 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto);
4529 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
4531 if (realdev_ofp_port == ofport->realdev_ofp_port
4532 && vid == ofport->vlandev_vid) {
4536 ofproto->backer->need_revalidate = REV_RECONFIGURE;
4538 if (ofport->realdev_ofp_port) {
4541 if (realdev_ofp_port && ofport->bundle) {
4542 /* vlandevs are enslaved to their realdevs, so they are not allowed to
4543 * themselves be part of a bundle. */
4544 bundle_set(ofport_->ofproto, ofport->bundle, NULL);
4547 ofport->realdev_ofp_port = realdev_ofp_port;
4548 ofport->vlandev_vid = vid;
4550 if (realdev_ofp_port) {
4551 vsp_add(ofport, realdev_ofp_port, vid);
4558 hash_realdev_vid(ofp_port_t realdev_ofp_port, int vid)
4560 return hash_2words(ofp_to_u16(realdev_ofp_port), vid);
4564 ofproto_has_vlan_splinters(const struct ofproto_dpif *ofproto)
4565 OVS_EXCLUDED(ofproto->vsp_mutex)
4567 /* hmap_is_empty is thread safe. */
4568 return !hmap_is_empty(&ofproto->realdev_vid_map);
4573 vsp_realdev_to_vlandev__(const struct ofproto_dpif *ofproto,
4574 ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
4575 OVS_REQUIRES(ofproto->vsp_mutex)
4577 if (!hmap_is_empty(&ofproto->realdev_vid_map)) {
4578 int vid = vlan_tci_to_vid(vlan_tci);
4579 const struct vlan_splinter *vsp;
4581 HMAP_FOR_EACH_WITH_HASH (vsp, realdev_vid_node,
4582 hash_realdev_vid(realdev_ofp_port, vid),
4583 &ofproto->realdev_vid_map) {
4584 if (vsp->realdev_ofp_port == realdev_ofp_port
4585 && vsp->vid == vid) {
4586 return vsp->vlandev_ofp_port;
4590 return realdev_ofp_port;
4593 /* Returns the OFP port number of the Linux VLAN device that corresponds to
4594 * 'vlan_tci' on the network device with port number 'realdev_ofp_port' in
4595 * 'struct ofport_dpif'. For example, given 'realdev_ofp_port' of eth0 and
4596 * 'vlan_tci' 9, it would return the port number of eth0.9.
4598 * Unless VLAN splinters are enabled for port 'realdev_ofp_port', this
4599 * function just returns its 'realdev_ofp_port' argument. */
4601 vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto,
4602 ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
4603 OVS_EXCLUDED(ofproto->vsp_mutex)
4607 /* hmap_is_empty is thread safe, see if we can return immediately. */
4608 if (hmap_is_empty(&ofproto->realdev_vid_map)) {
4609 return realdev_ofp_port;
4611 ovs_mutex_lock(&ofproto->vsp_mutex);
4612 ret = vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, vlan_tci);
4613 ovs_mutex_unlock(&ofproto->vsp_mutex);
4617 static struct vlan_splinter *
4618 vlandev_find(const struct ofproto_dpif *ofproto, ofp_port_t vlandev_ofp_port)
4620 struct vlan_splinter *vsp;
4622 HMAP_FOR_EACH_WITH_HASH (vsp, vlandev_node,
4623 hash_ofp_port(vlandev_ofp_port),
4624 &ofproto->vlandev_map) {
4625 if (vsp->vlandev_ofp_port == vlandev_ofp_port) {
4633 /* Returns the OpenFlow port number of the "real" device underlying the Linux
4634 * VLAN device with OpenFlow port number 'vlandev_ofp_port' and stores the
4635 * VLAN VID of the Linux VLAN device in '*vid'. For example, given
4636 * 'vlandev_ofp_port' of eth0.9, it would return the OpenFlow port number of
4637 * eth0 and store 9 in '*vid'.
4639 * Returns 0 and does not modify '*vid' if 'vlandev_ofp_port' is not a Linux
4640 * VLAN device. Unless VLAN splinters are enabled, this is what this function
4643 vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto,
4644 ofp_port_t vlandev_ofp_port, int *vid)
4645 OVS_REQUIRES(ofproto->vsp_mutex)
4647 if (!hmap_is_empty(&ofproto->vlandev_map)) {
4648 const struct vlan_splinter *vsp;
4650 vsp = vlandev_find(ofproto, vlandev_ofp_port);
4655 return vsp->realdev_ofp_port;
4661 /* Given 'flow', a flow representing a packet received on 'ofproto', checks
4662 * whether 'flow->in_port' represents a Linux VLAN device. If so, changes
4663 * 'flow->in_port' to the "real" device backing the VLAN device, sets
4664 * 'flow->vlan_tci' to the VLAN VID, and returns true. Otherwise (which is
4665 * always the case unless VLAN splinters are enabled), returns false without
4666 * making any changes. */
4668 vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow)
4669 OVS_EXCLUDED(ofproto->vsp_mutex)
4674 /* hmap_is_empty is thread safe. */
4675 if (hmap_is_empty(&ofproto->vlandev_map)) {
4679 ovs_mutex_lock(&ofproto->vsp_mutex);
4680 realdev = vsp_vlandev_to_realdev(ofproto, flow->in_port.ofp_port, &vid);
4681 ovs_mutex_unlock(&ofproto->vsp_mutex);
4686 /* Cause the flow to be processed as if it came in on the real device with
4687 * the VLAN device's VLAN ID. */
4688 flow->in_port.ofp_port = realdev;
4689 flow->vlan_tci = htons((vid & VLAN_VID_MASK) | VLAN_CFI);
4694 vsp_remove(struct ofport_dpif *port)
4696 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
4697 struct vlan_splinter *vsp;
4699 ovs_mutex_lock(&ofproto->vsp_mutex);
4700 vsp = vlandev_find(ofproto, port->up.ofp_port);
4702 hmap_remove(&ofproto->vlandev_map, &vsp->vlandev_node);
4703 hmap_remove(&ofproto->realdev_vid_map, &vsp->realdev_vid_node);
4706 port->realdev_ofp_port = 0;
4708 VLOG_ERR("missing vlan device record");
4710 ovs_mutex_unlock(&ofproto->vsp_mutex);
4714 vsp_add(struct ofport_dpif *port, ofp_port_t realdev_ofp_port, int vid)
4716 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
4718 ovs_mutex_lock(&ofproto->vsp_mutex);
4719 if (!vsp_vlandev_to_realdev(ofproto, port->up.ofp_port, NULL)
4720 && (vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, htons(vid))
4721 == realdev_ofp_port)) {
4722 struct vlan_splinter *vsp;
4724 vsp = xmalloc(sizeof *vsp);
4725 vsp->realdev_ofp_port = realdev_ofp_port;
4726 vsp->vlandev_ofp_port = port->up.ofp_port;
4729 port->realdev_ofp_port = realdev_ofp_port;
4731 hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node,
4732 hash_ofp_port(port->up.ofp_port));
4733 hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node,
4734 hash_realdev_vid(realdev_ofp_port, vid));
4736 VLOG_ERR("duplicate vlan device record");
4738 ovs_mutex_unlock(&ofproto->vsp_mutex);
4742 ofp_port_to_odp_port(const struct ofproto_dpif *ofproto, ofp_port_t ofp_port)
4744 const struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port);
4745 return ofport ? ofport->odp_port : ODPP_NONE;
4748 struct ofport_dpif *
4749 odp_port_to_ofport(const struct dpif_backer *backer, odp_port_t odp_port)
4751 struct ofport_dpif *port;
4753 ovs_rwlock_rdlock(&backer->odp_to_ofport_lock);
4754 HMAP_FOR_EACH_IN_BUCKET (port, odp_port_node, hash_odp_port(odp_port),
4755 &backer->odp_to_ofport_map) {
4756 if (port->odp_port == odp_port) {
4757 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
4762 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
4767 odp_port_to_ofp_port(const struct ofproto_dpif *ofproto, odp_port_t odp_port)
4769 struct ofport_dpif *port;
4771 port = odp_port_to_ofport(ofproto->backer, odp_port);
4772 if (port && &ofproto->up == port->up.ofproto) {
4773 return port->up.ofp_port;
4780 ofproto_dpif_alloc_recirc_id(struct ofproto_dpif *ofproto)
4782 struct dpif_backer *backer = ofproto->backer;
4784 return recirc_id_alloc(backer->rid_pool);
4788 ofproto_dpif_free_recirc_id(struct ofproto_dpif *ofproto, uint32_t recirc_id)
4790 struct dpif_backer *backer = ofproto->backer;
4792 recirc_id_free(backer->rid_pool, recirc_id);
4796 ofproto_dpif_add_internal_flow(struct ofproto_dpif *ofproto,
4797 struct match *match, int priority,
4798 const struct ofpbuf *ofpacts,
4799 struct rule **rulep)
4801 struct ofputil_flow_mod fm;
4802 struct rule_dpif *rule;
4806 fm.priority = priority;
4807 fm.new_cookie = htonll(0);
4808 fm.cookie = htonll(0);
4809 fm.cookie_mask = htonll(0);
4810 fm.modify_cookie = false;
4811 fm.table_id = TBL_INTERNAL;
4812 fm.command = OFPFC_ADD;
4813 fm.idle_timeout = 0;
4814 fm.hard_timeout = 0;
4817 fm.flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY;
4818 fm.ofpacts = ofpbuf_data(ofpacts);
4819 fm.ofpacts_len = ofpbuf_size(ofpacts);
4821 error = ofproto_flow_mod(&ofproto->up, &fm);
4823 VLOG_ERR_RL(&rl, "failed to add internal flow (%s)",
4824 ofperr_to_string(error));
4829 rule = rule_dpif_lookup_in_table(ofproto, TBL_INTERNAL, &match->flow,
4840 ofproto_dpif_delete_internal_flow(struct ofproto_dpif *ofproto,
4841 struct match *match, int priority)
4843 struct ofputil_flow_mod fm;
4847 fm.priority = priority;
4848 fm.new_cookie = htonll(0);
4849 fm.cookie = htonll(0);
4850 fm.cookie_mask = htonll(0);
4851 fm.modify_cookie = false;
4852 fm.table_id = TBL_INTERNAL;
4853 fm.flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY;
4854 fm.command = OFPFC_DELETE_STRICT;
4856 error = ofproto_flow_mod(&ofproto->up, &fm);
4858 VLOG_ERR_RL(&rl, "failed to delete internal flow (%s)",
4859 ofperr_to_string(error));
4866 const struct ofproto_class ofproto_dpif_class = {
4880 NULL, /* get_memory_usage. */
4881 type_get_memory_usage,
4900 port_is_lacp_current,
4901 NULL, /* rule_choose_table */
4910 rule_modify_actions,
4924 get_stp_port_status,
4932 is_mirror_output_bundle,
4933 forward_bpdu_changed,
4934 set_mac_table_config,
4936 NULL, /* meter_get_features */
4937 NULL, /* meter_set */
4938 NULL, /* meter_get */
4939 NULL, /* meter_del */
4940 group_alloc, /* group_alloc */
4941 group_construct, /* group_construct */
4942 group_destruct, /* group_destruct */
4943 group_dealloc, /* group_dealloc */
4944 group_modify, /* group_modify */
4945 group_get_stats, /* group_get_stats */