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 "mcast-snooping.h"
41 #include "meta-flow.h"
42 #include "multipath.h"
43 #include "netdev-vport.h"
48 #include "odp-execute.h"
51 #include "ofp-actions.h"
52 #include "ofp-parse.h"
53 #include "ofp-print.h"
54 #include "ofproto-dpif-ipfix.h"
55 #include "ofproto-dpif-mirror.h"
56 #include "ofproto-dpif-monitor.h"
57 #include "ofproto-dpif-rid.h"
58 #include "ofproto-dpif-sflow.h"
59 #include "ofproto-dpif-upcall.h"
60 #include "ofproto-dpif-xlate.h"
61 #include "ovs-router.h"
62 #include "poll-loop.h"
68 #include "unaligned.h"
70 #include "vlan-bitmap.h"
73 VLOG_DEFINE_THIS_MODULE(ofproto_dpif);
75 COVERAGE_DEFINE(ofproto_dpif_expired);
76 COVERAGE_DEFINE(packet_in_overflow);
85 * - Do include packets and bytes from datapath flows which have not
86 * recently been processed by a revalidator. */
87 struct ovs_mutex stats_mutex;
88 struct dpif_flow_stats stats OVS_GUARDED;
90 /* If non-zero then the recirculation id that has
91 * been allocated for use with this rule.
92 * The recirculation id and associated internal flow should
93 * be freed when the rule is freed */
97 /* RULE_CAST() depends on this. */
98 BUILD_ASSERT_DECL(offsetof(struct rule_dpif, up) == 0);
100 static void rule_get_stats(struct rule *, uint64_t *packets, uint64_t *bytes,
101 long long int *used);
102 static struct rule_dpif *rule_dpif_cast(const struct rule *);
103 static void rule_expire(struct rule_dpif *);
110 * - Do include packets and bytes from datapath flows which have not
111 * recently been processed by a revalidator. */
112 struct ovs_mutex stats_mutex;
113 uint64_t packet_count OVS_GUARDED; /* Number of packets received. */
114 uint64_t byte_count OVS_GUARDED; /* Number of bytes received. */
118 struct hmap_node hmap_node; /* In struct ofproto's "bundles" hmap. */
119 struct ofproto_dpif *ofproto; /* Owning ofproto. */
120 void *aux; /* Key supplied by ofproto's client. */
121 char *name; /* Identifier for log messages. */
124 struct list ports; /* Contains "struct ofport"s. */
125 enum port_vlan_mode vlan_mode; /* VLAN mode */
126 int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */
127 unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1.
128 * NULL if all VLANs are trunked. */
129 struct lacp *lacp; /* LACP if LACP is enabled, otherwise NULL. */
130 struct bond *bond; /* Nonnull iff more than one port. */
131 bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */
134 bool floodable; /* True if no port has OFPUTIL_PC_NO_FLOOD set. */
137 static void bundle_remove(struct ofport *);
138 static void bundle_update(struct ofbundle *);
139 static void bundle_destroy(struct ofbundle *);
140 static void bundle_del_port(struct ofport_dpif *);
141 static void bundle_run(struct ofbundle *);
142 static void bundle_wait(struct ofbundle *);
144 static void stp_run(struct ofproto_dpif *ofproto);
145 static void stp_wait(struct ofproto_dpif *ofproto);
146 static int set_stp_port(struct ofport *,
147 const struct ofproto_port_stp_settings *);
149 static void rstp_run(struct ofproto_dpif *ofproto);
150 static void set_rstp_port(struct ofport *,
151 const struct ofproto_port_rstp_settings *);
154 struct hmap_node odp_port_node; /* In dpif_backer's "odp_to_ofport_map". */
158 struct ofbundle *bundle; /* Bundle that contains this port, if any. */
159 struct list bundle_node; /* In struct ofbundle's "ports" list. */
160 struct cfm *cfm; /* Connectivity Fault Management, if any. */
161 struct bfd *bfd; /* BFD, if any. */
162 bool may_enable; /* May be enabled in bonds. */
163 bool is_tunnel; /* This port is a tunnel. */
164 bool is_layer3; /* This is a layer 3 port. */
165 long long int carrier_seq; /* Carrier status changes. */
166 struct ofport_dpif *peer; /* Peer if patch port. */
169 struct stp_port *stp_port; /* Spanning Tree Protocol, if any. */
170 enum stp_state stp_state; /* Always STP_DISABLED if STP not in use. */
171 long long int stp_state_entered;
173 /* Rapid Spanning Tree. */
174 struct rstp_port *rstp_port; /* Rapid Spanning Tree Protocol, if any. */
175 enum rstp_state rstp_state; /* Always RSTP_DISABLED if RSTP not in use. */
177 /* Queue to DSCP mapping. */
178 struct ofproto_port_queue *qdscp;
181 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
183 * This is deprecated. It is only for compatibility with broken device
184 * drivers in old versions of Linux that do not properly support VLANs when
185 * VLAN devices are not used. When broken device drivers are no longer in
186 * widespread use, we will delete these interfaces. */
187 ofp_port_t realdev_ofp_port;
191 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
193 * This is deprecated. It is only for compatibility with broken device drivers
194 * in old versions of Linux that do not properly support VLANs when VLAN
195 * devices are not used. When broken device drivers are no longer in
196 * widespread use, we will delete these interfaces. */
197 struct vlan_splinter {
198 struct hmap_node realdev_vid_node;
199 struct hmap_node vlandev_node;
200 ofp_port_t realdev_ofp_port;
201 ofp_port_t vlandev_ofp_port;
205 static void vsp_remove(struct ofport_dpif *);
206 static void vsp_add(struct ofport_dpif *, ofp_port_t realdev_ofp_port, int vid);
208 static odp_port_t ofp_port_to_odp_port(const struct ofproto_dpif *,
211 static ofp_port_t odp_port_to_ofp_port(const struct ofproto_dpif *,
214 static struct ofport_dpif *
215 ofport_dpif_cast(const struct ofport *ofport)
217 return ofport ? CONTAINER_OF(ofport, struct ofport_dpif, up) : NULL;
220 static void port_run(struct ofport_dpif *);
221 static int set_bfd(struct ofport *, const struct smap *);
222 static int set_cfm(struct ofport *, const struct cfm_settings *);
223 static void ofport_update_peer(struct ofport_dpif *);
225 /* Reasons that we might need to revalidate every datapath flow, and
226 * corresponding coverage counters.
228 * A value of 0 means that there is no need to revalidate.
230 * It would be nice to have some cleaner way to integrate with coverage
231 * counters, but with only a few reasons I guess this is good enough for
233 enum revalidate_reason {
234 REV_RECONFIGURE = 1, /* Switch configuration changed. */
235 REV_STP, /* Spanning tree protocol port status change. */
236 REV_RSTP, /* RSTP port status change. */
237 REV_BOND, /* Bonding changed. */
238 REV_PORT_TOGGLED, /* Port enabled or disabled by CFM, LACP, ...*/
239 REV_FLOW_TABLE, /* Flow table changed. */
240 REV_MAC_LEARNING, /* Mac learning changed. */
241 REV_MCAST_SNOOPING, /* Multicast snooping changed. */
243 COVERAGE_DEFINE(rev_reconfigure);
244 COVERAGE_DEFINE(rev_stp);
245 COVERAGE_DEFINE(rev_rstp);
246 COVERAGE_DEFINE(rev_bond);
247 COVERAGE_DEFINE(rev_port_toggled);
248 COVERAGE_DEFINE(rev_flow_table);
249 COVERAGE_DEFINE(rev_mac_learning);
250 COVERAGE_DEFINE(rev_mcast_snooping);
252 /* All datapaths of a given type share a single dpif backer instance. */
259 struct ovs_rwlock odp_to_ofport_lock;
260 struct hmap odp_to_ofport_map OVS_GUARDED; /* Contains "struct ofport"s. */
262 struct simap tnl_backers; /* Set of dpif ports backing tunnels. */
264 enum revalidate_reason need_revalidate; /* Revalidate all flows. */
266 bool recv_set_enable; /* Enables or disables receiving packets. */
269 struct recirc_id_pool *rid_pool; /* Recirculation ID pool. */
270 bool enable_recirc; /* True if the datapath supports recirculation */
272 /* True if the datapath supports variable-length
273 * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions.
274 * False if the datapath supports only 8-byte (or shorter) userdata. */
275 bool variable_length_userdata;
277 /* True if the datapath supports masked data in OVS_ACTION_ATTR_SET
279 bool masked_set_action;
281 /* Maximum number of MPLS label stack entries that the datapath supports
283 size_t max_mpls_depth;
285 /* Version string of the datapath stored in OVSDB. */
286 char *dp_version_string;
289 /* All existing ofproto_backer instances, indexed by ofproto->up.type. */
290 static struct shash all_dpif_backers = SHASH_INITIALIZER(&all_dpif_backers);
292 struct ofproto_dpif {
293 struct hmap_node all_ofproto_dpifs_node; /* In 'all_ofproto_dpifs'. */
295 struct dpif_backer *backer;
297 uint64_t dump_seq; /* Last read of udpif_dump_seq(). */
299 /* Special OpenFlow rules. */
300 struct rule_dpif *miss_rule; /* Sends flow table misses to controller. */
301 struct rule_dpif *no_packet_in_rule; /* Drops flow table misses. */
302 struct rule_dpif *drop_frags_rule; /* Used in OFPC_FRAG_DROP mode. */
305 struct netflow *netflow;
306 struct dpif_sflow *sflow;
307 struct dpif_ipfix *ipfix;
308 struct hmap bundles; /* Contains "struct ofbundle"s. */
309 struct mac_learning *ml;
310 struct mcast_snooping *ms;
311 bool has_bonded_bundles;
313 struct mbridge *mbridge;
315 struct ovs_mutex stats_mutex;
316 struct netdev_stats stats OVS_GUARDED; /* To account packets generated and
317 * consumed in userspace. */
321 long long int stp_last_tick;
323 /* Rapid Spanning Tree. */
325 long long int rstp_last_tick;
327 /* VLAN splinters. */
328 struct ovs_mutex vsp_mutex;
329 struct hmap realdev_vid_map OVS_GUARDED; /* (realdev,vid) -> vlandev. */
330 struct hmap vlandev_map OVS_GUARDED; /* vlandev -> (realdev,vid). */
333 struct sset ports; /* Set of standard port names. */
334 struct sset ghost_ports; /* Ports with no datapath port. */
335 struct sset port_poll_set; /* Queued names for port_poll() reply. */
336 int port_poll_errno; /* Last errno for port_poll() reply. */
337 uint64_t change_seq; /* Connectivity status changes. */
340 struct guarded_list pins; /* Contains "struct ofputil_packet_in"s. */
341 struct seq *pins_seq; /* For notifying 'pins' reception. */
345 /* All existing ofproto_dpif instances, indexed by ->up.name. */
346 static struct hmap all_ofproto_dpifs = HMAP_INITIALIZER(&all_ofproto_dpifs);
348 static void ofproto_dpif_unixctl_init(void);
350 static inline struct ofproto_dpif *
351 ofproto_dpif_cast(const struct ofproto *ofproto)
353 ovs_assert(ofproto->ofproto_class == &ofproto_dpif_class);
354 return CONTAINER_OF(ofproto, struct ofproto_dpif, up);
358 ofproto_dpif_get_max_mpls_depth(const struct ofproto_dpif *ofproto)
360 return ofproto->backer->max_mpls_depth;
364 ofproto_dpif_get_enable_recirc(const struct ofproto_dpif *ofproto)
366 return ofproto->backer->enable_recirc;
369 static struct ofport_dpif *get_ofp_port(const struct ofproto_dpif *ofproto,
370 ofp_port_t ofp_port);
371 static void ofproto_trace(struct ofproto_dpif *, struct flow *,
372 const struct ofpbuf *packet,
373 const struct ofpact[], size_t ofpacts_len,
376 /* Global variables. */
377 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
379 /* Initial mappings of port to bridge mappings. */
380 static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports);
382 /* Executes 'fm'. The caller retains ownership of 'fm' and everything in
385 ofproto_dpif_flow_mod(struct ofproto_dpif *ofproto,
386 struct ofputil_flow_mod *fm)
388 ofproto_flow_mod(&ofproto->up, fm);
391 /* Appends 'pin' to the queue of "packet ins" to be sent to the controller.
392 * Takes ownership of 'pin' and pin->packet. */
394 ofproto_dpif_send_packet_in(struct ofproto_dpif *ofproto,
395 struct ofproto_packet_in *pin)
397 if (!guarded_list_push_back(&ofproto->pins, &pin->list_node, 1024)) {
398 COVERAGE_INC(packet_in_overflow);
399 free(CONST_CAST(void *, pin->up.packet));
403 /* Wakes up main thread for packet-in I/O. */
404 seq_change(ofproto->pins_seq);
407 /* The default "table-miss" behaviour for OpenFlow1.3+ is to drop the
408 * packet rather than to send the packet to the controller.
410 * This function returns false to indicate that a packet_in message
411 * for a "table-miss" should be sent to at least one controller.
412 * False otherwise. */
414 ofproto_dpif_wants_packet_in_on_miss(struct ofproto_dpif *ofproto)
416 return connmgr_wants_packet_in_on_miss(ofproto->up.connmgr);
419 /* Factory functions. */
422 init(const struct shash *iface_hints)
424 struct shash_node *node;
426 /* Make a local copy, since we don't own 'iface_hints' elements. */
427 SHASH_FOR_EACH(node, iface_hints) {
428 const struct iface_hint *orig_hint = node->data;
429 struct iface_hint *new_hint = xmalloc(sizeof *new_hint);
431 new_hint->br_name = xstrdup(orig_hint->br_name);
432 new_hint->br_type = xstrdup(orig_hint->br_type);
433 new_hint->ofp_port = orig_hint->ofp_port;
435 shash_add(&init_ofp_ports, node->name, new_hint);
440 enumerate_types(struct sset *types)
442 dp_enumerate_types(types);
446 enumerate_names(const char *type, struct sset *names)
448 struct ofproto_dpif *ofproto;
451 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
452 if (strcmp(type, ofproto->up.type)) {
455 sset_add(names, ofproto->up.name);
462 del(const char *type, const char *name)
467 error = dpif_open(name, type, &dpif);
469 error = dpif_delete(dpif);
476 port_open_type(const char *datapath_type, const char *port_type)
478 return dpif_port_open_type(datapath_type, port_type);
481 /* Type functions. */
483 static void process_dpif_port_changes(struct dpif_backer *);
484 static void process_dpif_all_ports_changed(struct dpif_backer *);
485 static void process_dpif_port_change(struct dpif_backer *,
486 const char *devname);
487 static void process_dpif_port_error(struct dpif_backer *, int error);
489 static struct ofproto_dpif *
490 lookup_ofproto_dpif_by_port_name(const char *name)
492 struct ofproto_dpif *ofproto;
494 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
495 if (sset_contains(&ofproto->ports, name)) {
504 type_run(const char *type)
506 struct dpif_backer *backer;
508 backer = shash_find_data(&all_dpif_backers, type);
510 /* This is not necessarily a problem, since backers are only
511 * created on demand. */
515 dpif_run(backer->dpif);
516 udpif_run(backer->udpif);
518 /* If vswitchd started with other_config:flow_restore_wait set as "true",
519 * and the configuration has now changed to "false", enable receiving
520 * packets from the datapath. */
521 if (!backer->recv_set_enable && !ofproto_get_flow_restore_wait()) {
524 backer->recv_set_enable = true;
526 error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
528 VLOG_ERR("Failed to enable receiving packets in dpif.");
531 dpif_flow_flush(backer->dpif);
532 backer->need_revalidate = REV_RECONFIGURE;
535 if (backer->recv_set_enable) {
536 udpif_set_threads(backer->udpif, n_handlers, n_revalidators);
539 dpif_poll_threads_set(backer->dpif, n_dpdk_rxqs, pmd_cpu_mask);
541 if (backer->need_revalidate) {
542 struct ofproto_dpif *ofproto;
543 struct simap_node *node;
544 struct simap tmp_backers;
546 /* Handle tunnel garbage collection. */
547 simap_init(&tmp_backers);
548 simap_swap(&backer->tnl_backers, &tmp_backers);
550 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
551 struct ofport_dpif *iter;
553 if (backer != ofproto->backer) {
557 HMAP_FOR_EACH (iter, up.hmap_node, &ofproto->up.ports) {
558 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
561 if (!iter->is_tunnel) {
565 dp_port = netdev_vport_get_dpif_port(iter->up.netdev,
566 namebuf, sizeof namebuf);
567 node = simap_find(&tmp_backers, dp_port);
569 simap_put(&backer->tnl_backers, dp_port, node->data);
570 simap_delete(&tmp_backers, node);
571 node = simap_find(&backer->tnl_backers, dp_port);
573 node = simap_find(&backer->tnl_backers, dp_port);
575 odp_port_t odp_port = ODPP_NONE;
577 if (!dpif_port_add(backer->dpif, iter->up.netdev,
579 simap_put(&backer->tnl_backers, dp_port,
580 odp_to_u32(odp_port));
581 node = simap_find(&backer->tnl_backers, dp_port);
586 iter->odp_port = node ? u32_to_odp(node->data) : ODPP_NONE;
587 if (tnl_port_reconfigure(iter, iter->up.netdev,
589 backer->need_revalidate = REV_RECONFIGURE;
594 SIMAP_FOR_EACH (node, &tmp_backers) {
595 dpif_port_del(backer->dpif, u32_to_odp(node->data));
597 simap_destroy(&tmp_backers);
599 switch (backer->need_revalidate) {
600 case REV_RECONFIGURE: COVERAGE_INC(rev_reconfigure); break;
601 case REV_STP: COVERAGE_INC(rev_stp); break;
602 case REV_RSTP: COVERAGE_INC(rev_rstp); break;
603 case REV_BOND: COVERAGE_INC(rev_bond); break;
604 case REV_PORT_TOGGLED: COVERAGE_INC(rev_port_toggled); break;
605 case REV_FLOW_TABLE: COVERAGE_INC(rev_flow_table); break;
606 case REV_MAC_LEARNING: COVERAGE_INC(rev_mac_learning); break;
607 case REV_MCAST_SNOOPING: COVERAGE_INC(rev_mcast_snooping); break;
609 backer->need_revalidate = 0;
611 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
612 struct ofport_dpif *ofport;
613 struct ofbundle *bundle;
615 if (ofproto->backer != backer) {
620 xlate_ofproto_set(ofproto, ofproto->up.name,
621 ofproto->backer->dpif, ofproto->ml,
622 ofproto->stp, ofproto->rstp, ofproto->ms,
623 ofproto->mbridge, ofproto->sflow, ofproto->ipfix,
625 ofproto->up.forward_bpdu,
626 connmgr_has_in_band(ofproto->up.connmgr),
627 ofproto->backer->enable_recirc,
628 ofproto->backer->variable_length_userdata,
629 ofproto->backer->max_mpls_depth,
630 ofproto->backer->masked_set_action);
632 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
633 xlate_bundle_set(ofproto, bundle, bundle->name,
634 bundle->vlan_mode, bundle->vlan,
635 bundle->trunks, bundle->use_priority_tags,
636 bundle->bond, bundle->lacp,
640 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
641 int stp_port = ofport->stp_port
642 ? stp_port_no(ofport->stp_port)
644 xlate_ofport_set(ofproto, ofport->bundle, ofport,
645 ofport->up.ofp_port, ofport->odp_port,
646 ofport->up.netdev, ofport->cfm,
647 ofport->bfd, ofport->peer, stp_port,
648 ofport->rstp_port, ofport->qdscp,
649 ofport->n_qdscp, ofport->up.pp.config,
650 ofport->up.pp.state, ofport->is_tunnel,
656 udpif_revalidate(backer->udpif);
659 process_dpif_port_changes(backer);
664 /* Check for and handle port changes in 'backer''s dpif. */
666 process_dpif_port_changes(struct dpif_backer *backer)
672 error = dpif_port_poll(backer->dpif, &devname);
678 process_dpif_all_ports_changed(backer);
682 process_dpif_port_change(backer, devname);
687 process_dpif_port_error(backer, error);
694 process_dpif_all_ports_changed(struct dpif_backer *backer)
696 struct ofproto_dpif *ofproto;
697 struct dpif_port dpif_port;
698 struct dpif_port_dump dump;
699 struct sset devnames;
702 sset_init(&devnames);
703 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
704 if (ofproto->backer == backer) {
705 struct ofport *ofport;
707 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
708 sset_add(&devnames, netdev_get_name(ofport->netdev));
712 DPIF_PORT_FOR_EACH (&dpif_port, &dump, backer->dpif) {
713 sset_add(&devnames, dpif_port.name);
716 SSET_FOR_EACH (devname, &devnames) {
717 process_dpif_port_change(backer, devname);
719 sset_destroy(&devnames);
723 process_dpif_port_change(struct dpif_backer *backer, const char *devname)
725 struct ofproto_dpif *ofproto;
726 struct dpif_port port;
728 /* Don't report on the datapath's device. */
729 if (!strcmp(devname, dpif_base_name(backer->dpif))) {
733 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node,
734 &all_ofproto_dpifs) {
735 if (simap_contains(&ofproto->backer->tnl_backers, devname)) {
740 ofproto = lookup_ofproto_dpif_by_port_name(devname);
741 if (dpif_port_query_by_name(backer->dpif, devname, &port)) {
742 /* The port was removed. If we know the datapath,
743 * report it through poll_set(). If we don't, it may be
744 * notifying us of a removal we initiated, so ignore it.
745 * If there's a pending ENOBUFS, let it stand, since
746 * everything will be reevaluated. */
747 if (ofproto && ofproto->port_poll_errno != ENOBUFS) {
748 sset_add(&ofproto->port_poll_set, devname);
749 ofproto->port_poll_errno = 0;
751 } else if (!ofproto) {
752 /* The port was added, but we don't know with which
753 * ofproto we should associate it. Delete it. */
754 dpif_port_del(backer->dpif, port.port_no);
756 struct ofport_dpif *ofport;
758 ofport = ofport_dpif_cast(shash_find_data(
759 &ofproto->up.port_by_name, devname));
761 && ofport->odp_port != port.port_no
762 && !odp_port_to_ofport(backer, port.port_no))
764 /* 'ofport''s datapath port number has changed from
765 * 'ofport->odp_port' to 'port.port_no'. Update our internal data
766 * structures to match. */
767 ovs_rwlock_wrlock(&backer->odp_to_ofport_lock);
768 hmap_remove(&backer->odp_to_ofport_map, &ofport->odp_port_node);
769 ofport->odp_port = port.port_no;
770 hmap_insert(&backer->odp_to_ofport_map, &ofport->odp_port_node,
771 hash_odp_port(port.port_no));
772 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
773 backer->need_revalidate = REV_RECONFIGURE;
776 dpif_port_destroy(&port);
779 /* Propagate 'error' to all ofprotos based on 'backer'. */
781 process_dpif_port_error(struct dpif_backer *backer, int error)
783 struct ofproto_dpif *ofproto;
785 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
786 if (ofproto->backer == backer) {
787 sset_clear(&ofproto->port_poll_set);
788 ofproto->port_poll_errno = error;
794 type_wait(const char *type)
796 struct dpif_backer *backer;
798 backer = shash_find_data(&all_dpif_backers, type);
800 /* This is not necessarily a problem, since backers are only
801 * created on demand. */
805 dpif_wait(backer->dpif);
808 /* Basic life-cycle. */
810 static int add_internal_flows(struct ofproto_dpif *);
812 static struct ofproto *
815 struct ofproto_dpif *ofproto = xmalloc(sizeof *ofproto);
820 dealloc(struct ofproto *ofproto_)
822 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
827 close_dpif_backer(struct dpif_backer *backer)
829 ovs_assert(backer->refcount > 0);
831 if (--backer->refcount) {
835 udpif_destroy(backer->udpif);
837 simap_destroy(&backer->tnl_backers);
838 ovs_rwlock_destroy(&backer->odp_to_ofport_lock);
839 hmap_destroy(&backer->odp_to_ofport_map);
840 shash_find_and_delete(&all_dpif_backers, backer->type);
841 recirc_id_pool_destroy(backer->rid_pool);
843 free(backer->dp_version_string);
844 dpif_close(backer->dpif);
848 /* Datapath port slated for removal from datapath. */
850 struct list list_node;
854 static bool check_variable_length_userdata(struct dpif_backer *backer);
855 static size_t check_max_mpls_depth(struct dpif_backer *backer);
856 static bool check_recirc(struct dpif_backer *backer);
857 static bool check_masked_set_action(struct dpif_backer *backer);
860 open_dpif_backer(const char *type, struct dpif_backer **backerp)
862 struct dpif_backer *backer;
863 struct dpif_port_dump port_dump;
864 struct dpif_port port;
865 struct shash_node *node;
866 struct list garbage_list;
867 struct odp_garbage *garbage, *next;
874 backer = shash_find_data(&all_dpif_backers, type);
881 backer_name = xasprintf("ovs-%s", type);
883 /* Remove any existing datapaths, since we assume we're the only
884 * userspace controlling the datapath. */
886 dp_enumerate_names(type, &names);
887 SSET_FOR_EACH(name, &names) {
888 struct dpif *old_dpif;
890 /* Don't remove our backer if it exists. */
891 if (!strcmp(name, backer_name)) {
895 if (dpif_open(name, type, &old_dpif)) {
896 VLOG_WARN("couldn't open old datapath %s to remove it", name);
898 dpif_delete(old_dpif);
899 dpif_close(old_dpif);
902 sset_destroy(&names);
904 backer = xmalloc(sizeof *backer);
906 error = dpif_create_and_open(backer_name, type, &backer->dpif);
909 VLOG_ERR("failed to open datapath of type %s: %s", type,
910 ovs_strerror(error));
914 backer->udpif = udpif_create(backer, backer->dpif);
916 backer->type = xstrdup(type);
917 backer->refcount = 1;
918 hmap_init(&backer->odp_to_ofport_map);
919 ovs_rwlock_init(&backer->odp_to_ofport_lock);
920 backer->need_revalidate = 0;
921 simap_init(&backer->tnl_backers);
922 backer->recv_set_enable = !ofproto_get_flow_restore_wait();
925 if (backer->recv_set_enable) {
926 dpif_flow_flush(backer->dpif);
929 /* Loop through the ports already on the datapath and remove any
930 * that we don't need anymore. */
931 list_init(&garbage_list);
932 dpif_port_dump_start(&port_dump, backer->dpif);
933 while (dpif_port_dump_next(&port_dump, &port)) {
934 node = shash_find(&init_ofp_ports, port.name);
935 if (!node && strcmp(port.name, dpif_base_name(backer->dpif))) {
936 garbage = xmalloc(sizeof *garbage);
937 garbage->odp_port = port.port_no;
938 list_push_front(&garbage_list, &garbage->list_node);
941 dpif_port_dump_done(&port_dump);
943 LIST_FOR_EACH_SAFE (garbage, next, list_node, &garbage_list) {
944 dpif_port_del(backer->dpif, garbage->odp_port);
945 list_remove(&garbage->list_node);
949 shash_add(&all_dpif_backers, type, backer);
951 backer->enable_recirc = check_recirc(backer);
952 backer->max_mpls_depth = check_max_mpls_depth(backer);
953 backer->masked_set_action = check_masked_set_action(backer);
954 backer->rid_pool = recirc_id_pool_create();
956 error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
958 VLOG_ERR("failed to listen on datapath of type %s: %s",
959 type, ovs_strerror(error));
960 close_dpif_backer(backer);
964 if (backer->recv_set_enable) {
965 udpif_set_threads(backer->udpif, n_handlers, n_revalidators);
968 /* This check fails if performed before udpif threads have been set,
969 * as the kernel module checks that the 'pid' in userspace action
971 backer->variable_length_userdata = check_variable_length_userdata(backer);
972 backer->dp_version_string = dpif_get_dp_version(backer->dpif);
977 /* Tests whether 'backer''s datapath supports recirculation. Only newer
978 * datapaths support OVS_KEY_ATTR_RECIRC_ID in keys. We need to disable some
979 * features on older datapaths that don't support this feature.
981 * Returns false if 'backer' definitely does not support recirculation, true if
982 * it seems to support recirculation or if at least the error we get is
985 check_recirc(struct dpif_backer *backer)
988 struct odputil_keybuf keybuf;
991 bool enable_recirc = false;
993 memset(&flow, 0, sizeof flow);
997 ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
998 odp_flow_key_from_flow(&key, &flow, NULL, 0, true);
1000 error = dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_PROBE,
1001 ofpbuf_data(&key), ofpbuf_size(&key), NULL, 0, NULL,
1003 if (error && error != EEXIST) {
1004 if (error != EINVAL) {
1005 VLOG_WARN("%s: Reciculation flow probe failed (%s)",
1006 dpif_name(backer->dpif), ovs_strerror(error));
1011 error = dpif_flow_del(backer->dpif, ofpbuf_data(&key), ofpbuf_size(&key),
1014 VLOG_WARN("%s: failed to delete recirculation feature probe flow",
1015 dpif_name(backer->dpif));
1018 enable_recirc = true;
1021 if (enable_recirc) {
1022 VLOG_INFO("%s: Datapath supports recirculation",
1023 dpif_name(backer->dpif));
1025 VLOG_INFO("%s: Datapath does not support recirculation",
1026 dpif_name(backer->dpif));
1029 return enable_recirc;
1032 /* Tests whether 'backer''s datapath supports variable-length
1033 * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions. We need
1034 * to disable some features on older datapaths that don't support this
1037 * Returns false if 'backer' definitely does not support variable-length
1038 * userdata, true if it seems to support them or if at least the error we get
1041 check_variable_length_userdata(struct dpif_backer *backer)
1043 struct eth_header *eth;
1044 struct ofpbuf actions;
1045 struct dpif_execute execute;
1046 struct ofpbuf packet;
1050 /* Compose a userspace action that will cause an ERANGE error on older
1051 * datapaths that don't support variable-length userdata.
1053 * We really test for using userdata longer than 8 bytes, but older
1054 * datapaths accepted these, silently truncating the userdata to 8 bytes.
1055 * The same older datapaths rejected userdata shorter than 8 bytes, so we
1056 * test for that instead as a proxy for longer userdata support. */
1057 ofpbuf_init(&actions, 64);
1058 start = nl_msg_start_nested(&actions, OVS_ACTION_ATTR_USERSPACE);
1059 nl_msg_put_u32(&actions, OVS_USERSPACE_ATTR_PID,
1060 dpif_port_get_pid(backer->dpif, ODPP_NONE, 0));
1061 nl_msg_put_unspec_zero(&actions, OVS_USERSPACE_ATTR_USERDATA, 4);
1062 nl_msg_end_nested(&actions, start);
1064 /* Compose a dummy ethernet packet. */
1065 ofpbuf_init(&packet, ETH_HEADER_LEN);
1066 eth = ofpbuf_put_zeros(&packet, ETH_HEADER_LEN);
1067 eth->eth_type = htons(0x1234);
1069 /* Execute the actions. On older datapaths this fails with ERANGE, on
1070 * newer datapaths it succeeds. */
1071 execute.actions = ofpbuf_data(&actions);
1072 execute.actions_len = ofpbuf_size(&actions);
1073 execute.packet = &packet;
1074 execute.md = PKT_METADATA_INITIALIZER(0);
1075 execute.needs_help = false;
1076 execute.probe = true;
1078 error = dpif_execute(backer->dpif, &execute);
1080 ofpbuf_uninit(&packet);
1081 ofpbuf_uninit(&actions);
1088 /* Variable-length userdata is not supported. */
1089 VLOG_WARN("%s: datapath does not support variable-length userdata "
1090 "feature (needs Linux 3.10+ or kernel module from OVS "
1091 "1..11+). The NXAST_SAMPLE action will be ignored.",
1092 dpif_name(backer->dpif));
1096 /* Something odd happened. We're not sure whether variable-length
1097 * userdata is supported. Default to "yes". */
1098 VLOG_WARN("%s: variable-length userdata feature probe failed (%s)",
1099 dpif_name(backer->dpif), ovs_strerror(error));
1104 /* Tests the MPLS label stack depth supported by 'backer''s datapath.
1106 * Returns the number of elements in a struct flow's mpls_lse field
1107 * if the datapath supports at least that many entries in an
1109 * Otherwise returns the number of MPLS push actions supported by
1112 check_max_mpls_depth(struct dpif_backer *backer)
1117 for (n = 0; n < FLOW_MAX_MPLS_LABELS; n++) {
1118 struct odputil_keybuf keybuf;
1122 memset(&flow, 0, sizeof flow);
1123 flow.dl_type = htons(ETH_TYPE_MPLS);
1124 flow_set_mpls_bos(&flow, n, 1);
1126 ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
1127 odp_flow_key_from_flow(&key, &flow, NULL, 0, false);
1129 error = dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_PROBE,
1130 ofpbuf_data(&key), ofpbuf_size(&key), NULL, 0,
1132 if (error && error != EEXIST) {
1133 if (error != EINVAL) {
1134 VLOG_WARN("%s: MPLS stack length feature probe failed (%s)",
1135 dpif_name(backer->dpif), ovs_strerror(error));
1140 error = dpif_flow_del(backer->dpif, ofpbuf_data(&key),
1141 ofpbuf_size(&key), NULL);
1143 VLOG_WARN("%s: failed to delete MPLS feature probe flow",
1144 dpif_name(backer->dpif));
1148 VLOG_INFO("%s: MPLS label stack length probed as %d",
1149 dpif_name(backer->dpif), n);
1153 /* Tests whether 'backer''s datapath supports masked data in
1154 * OVS_ACTION_ATTR_SET actions. We need to disable some features on older
1155 * datapaths that don't support this feature. */
1157 check_masked_set_action(struct dpif_backer *backer)
1159 struct eth_header *eth;
1160 struct ofpbuf actions;
1161 struct dpif_execute execute;
1162 struct ofpbuf packet;
1164 struct ovs_key_ethernet key, mask;
1166 /* Compose a set action that will cause an EINVAL error on older
1167 * datapaths that don't support masked set actions.
1168 * Avoid using a full mask, as it could be translated to a non-masked
1169 * set action instead. */
1170 ofpbuf_init(&actions, 64);
1171 memset(&key, 0x53, sizeof key);
1172 memset(&mask, 0x7f, sizeof mask);
1173 commit_masked_set_action(&actions, OVS_KEY_ATTR_ETHERNET, &key, &mask,
1176 /* Compose a dummy ethernet packet. */
1177 ofpbuf_init(&packet, ETH_HEADER_LEN);
1178 eth = ofpbuf_put_zeros(&packet, ETH_HEADER_LEN);
1179 eth->eth_type = htons(0x1234);
1181 /* Execute the actions. On older datapaths this fails with EINVAL, on
1182 * newer datapaths it succeeds. */
1183 execute.actions = ofpbuf_data(&actions);
1184 execute.actions_len = ofpbuf_size(&actions);
1185 execute.packet = &packet;
1186 execute.md = PKT_METADATA_INITIALIZER(0);
1187 execute.needs_help = false;
1188 execute.probe = true;
1190 error = dpif_execute(backer->dpif, &execute);
1192 ofpbuf_uninit(&packet);
1193 ofpbuf_uninit(&actions);
1196 /* Masked set action is not supported. */
1197 VLOG_INFO("%s: datapath does not support masked set action feature.",
1198 dpif_name(backer->dpif));
1204 construct(struct ofproto *ofproto_)
1206 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1207 struct shash_node *node, *next;
1210 error = open_dpif_backer(ofproto->up.type, &ofproto->backer);
1215 ofproto->netflow = NULL;
1216 ofproto->sflow = NULL;
1217 ofproto->ipfix = NULL;
1218 ofproto->stp = NULL;
1219 ofproto->rstp = NULL;
1220 ofproto->dump_seq = 0;
1221 hmap_init(&ofproto->bundles);
1222 ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME);
1224 ofproto->mbridge = mbridge_create();
1225 ofproto->has_bonded_bundles = false;
1226 ofproto->lacp_enabled = false;
1227 ofproto_tunnel_init();
1228 ovs_mutex_init_adaptive(&ofproto->stats_mutex);
1229 ovs_mutex_init(&ofproto->vsp_mutex);
1231 guarded_list_init(&ofproto->pins);
1233 ofproto_dpif_unixctl_init();
1234 ovs_router_unixctl_register();
1236 hmap_init(&ofproto->vlandev_map);
1237 hmap_init(&ofproto->realdev_vid_map);
1239 sset_init(&ofproto->ports);
1240 sset_init(&ofproto->ghost_ports);
1241 sset_init(&ofproto->port_poll_set);
1242 ofproto->port_poll_errno = 0;
1243 ofproto->change_seq = 0;
1244 ofproto->pins_seq = seq_create();
1245 ofproto->pins_seqno = seq_read(ofproto->pins_seq);
1248 SHASH_FOR_EACH_SAFE (node, next, &init_ofp_ports) {
1249 struct iface_hint *iface_hint = node->data;
1251 if (!strcmp(iface_hint->br_name, ofproto->up.name)) {
1252 /* Check if the datapath already has this port. */
1253 if (dpif_port_exists(ofproto->backer->dpif, node->name)) {
1254 sset_add(&ofproto->ports, node->name);
1257 free(iface_hint->br_name);
1258 free(iface_hint->br_type);
1260 shash_delete(&init_ofp_ports, node);
1264 hmap_insert(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node,
1265 hash_string(ofproto->up.name, 0));
1266 memset(&ofproto->stats, 0, sizeof ofproto->stats);
1268 ofproto_init_tables(ofproto_, N_TABLES);
1269 error = add_internal_flows(ofproto);
1271 ofproto->up.tables[TBL_INTERNAL].flags = OFTABLE_HIDDEN | OFTABLE_READONLY;
1277 add_internal_miss_flow(struct ofproto_dpif *ofproto, int id,
1278 const struct ofpbuf *ofpacts, struct rule_dpif **rulep)
1284 match_init_catchall(&match);
1285 match_set_reg(&match, 0, id);
1287 error = ofproto_dpif_add_internal_flow(ofproto, &match, 0, 0, ofpacts,
1289 *rulep = error ? NULL : rule_dpif_cast(rule);
1295 add_internal_flows(struct ofproto_dpif *ofproto)
1297 struct ofpact_controller *controller;
1298 uint64_t ofpacts_stub[128 / 8];
1299 struct ofpbuf ofpacts;
1300 struct rule *unused_rulep OVS_UNUSED;
1301 struct ofpact_resubmit *resubmit;
1306 ofpbuf_use_stack(&ofpacts, ofpacts_stub, sizeof ofpacts_stub);
1309 controller = ofpact_put_CONTROLLER(&ofpacts);
1310 controller->max_len = UINT16_MAX;
1311 controller->controller_id = 0;
1312 controller->reason = OFPR_NO_MATCH;
1313 ofpact_pad(&ofpacts);
1315 error = add_internal_miss_flow(ofproto, id++, &ofpacts,
1316 &ofproto->miss_rule);
1321 ofpbuf_clear(&ofpacts);
1322 error = add_internal_miss_flow(ofproto, id++, &ofpacts,
1323 &ofproto->no_packet_in_rule);
1328 error = add_internal_miss_flow(ofproto, id++, &ofpacts,
1329 &ofproto->drop_frags_rule);
1334 /* Continue non-recirculation rule lookups from table 0.
1336 * (priority=2), recirc=0, actions=resubmit(, 0)
1338 resubmit = ofpact_put_RESUBMIT(&ofpacts);
1339 resubmit->in_port = OFPP_IN_PORT;
1340 resubmit->table_id = 0;
1342 match_init_catchall(&match);
1343 match_set_recirc_id(&match, 0);
1345 error = ofproto_dpif_add_internal_flow(ofproto, &match, 2, 0, &ofpacts,
1351 /* Drop any run away recirc rule lookups. Recirc_id has to be
1352 * non-zero when reaching this rule.
1354 * (priority=1), *, actions=drop
1356 ofpbuf_clear(&ofpacts);
1357 match_init_catchall(&match);
1358 error = ofproto_dpif_add_internal_flow(ofproto, &match, 1, 0, &ofpacts,
1365 destruct(struct ofproto *ofproto_)
1367 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1368 struct ofproto_packet_in *pin, *next_pin;
1369 struct rule_dpif *rule;
1370 struct oftable *table;
1373 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1375 xlate_remove_ofproto(ofproto);
1378 /* Ensure that the upcall processing threads have no remaining references
1379 * to the ofproto or anything in it. */
1380 udpif_synchronize(ofproto->backer->udpif);
1382 hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node);
1384 OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) {
1385 CLS_FOR_EACH_SAFE (rule, up.cr, &table->cls) {
1386 ofproto_rule_delete(&ofproto->up, &rule->up);
1390 guarded_list_pop_all(&ofproto->pins, &pins);
1391 LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
1392 list_remove(&pin->list_node);
1393 free(CONST_CAST(void *, pin->up.packet));
1396 guarded_list_destroy(&ofproto->pins);
1398 mbridge_unref(ofproto->mbridge);
1400 netflow_unref(ofproto->netflow);
1401 dpif_sflow_unref(ofproto->sflow);
1402 dpif_ipfix_unref(ofproto->ipfix);
1403 hmap_destroy(&ofproto->bundles);
1404 mac_learning_unref(ofproto->ml);
1405 mcast_snooping_unref(ofproto->ms);
1407 hmap_destroy(&ofproto->vlandev_map);
1408 hmap_destroy(&ofproto->realdev_vid_map);
1410 sset_destroy(&ofproto->ports);
1411 sset_destroy(&ofproto->ghost_ports);
1412 sset_destroy(&ofproto->port_poll_set);
1414 ovs_mutex_destroy(&ofproto->stats_mutex);
1415 ovs_mutex_destroy(&ofproto->vsp_mutex);
1417 seq_destroy(ofproto->pins_seq);
1419 close_dpif_backer(ofproto->backer);
1423 run(struct ofproto *ofproto_)
1425 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1426 uint64_t new_seq, new_dump_seq;
1428 if (mbridge_need_revalidate(ofproto->mbridge)) {
1429 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1430 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1431 mac_learning_flush(ofproto->ml);
1432 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1433 mcast_snooping_mdb_flush(ofproto->ms);
1436 /* Always updates the ofproto->pins_seqno to avoid frequent wakeup during
1437 * flow restore. Even though nothing is processed during flow restore,
1438 * all queued 'pins' will be handled immediately when flow restore
1440 ofproto->pins_seqno = seq_read(ofproto->pins_seq);
1442 /* Do not perform any periodic activity required by 'ofproto' while
1443 * waiting for flow restore to complete. */
1444 if (!ofproto_get_flow_restore_wait()) {
1445 struct ofproto_packet_in *pin, *next_pin;
1448 guarded_list_pop_all(&ofproto->pins, &pins);
1449 LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
1450 connmgr_send_packet_in(ofproto->up.connmgr, pin);
1451 list_remove(&pin->list_node);
1452 free(CONST_CAST(void *, pin->up.packet));
1457 if (ofproto->netflow) {
1458 netflow_run(ofproto->netflow);
1460 if (ofproto->sflow) {
1461 dpif_sflow_run(ofproto->sflow);
1463 if (ofproto->ipfix) {
1464 dpif_ipfix_run(ofproto->ipfix);
1467 new_seq = seq_read(connectivity_seq_get());
1468 if (ofproto->change_seq != new_seq) {
1469 struct ofport_dpif *ofport;
1471 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1475 ofproto->change_seq = new_seq;
1477 if (ofproto->lacp_enabled || ofproto->has_bonded_bundles) {
1478 struct ofbundle *bundle;
1480 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1487 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
1488 if (mac_learning_run(ofproto->ml)) {
1489 ofproto->backer->need_revalidate = REV_MAC_LEARNING;
1491 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1493 if (mcast_snooping_run(ofproto->ms)) {
1494 ofproto->backer->need_revalidate = REV_MCAST_SNOOPING;
1497 new_dump_seq = seq_read(udpif_dump_seq(ofproto->backer->udpif));
1498 if (ofproto->dump_seq != new_dump_seq) {
1499 struct rule *rule, *next_rule;
1501 /* We know stats are relatively fresh, so now is a good time to do some
1503 ofproto->dump_seq = new_dump_seq;
1505 /* Expire OpenFlow flows whose idle_timeout or hard_timeout
1507 ovs_mutex_lock(&ofproto_mutex);
1508 LIST_FOR_EACH_SAFE (rule, next_rule, expirable,
1509 &ofproto->up.expirable) {
1510 rule_expire(rule_dpif_cast(rule));
1512 ovs_mutex_unlock(&ofproto_mutex);
1514 /* All outstanding data in existing flows has been accounted, so it's a
1515 * good time to do bond rebalancing. */
1516 if (ofproto->has_bonded_bundles) {
1517 struct ofbundle *bundle;
1519 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1521 bond_rebalance(bundle->bond);
1531 wait(struct ofproto *ofproto_)
1533 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1535 if (ofproto_get_flow_restore_wait()) {
1539 if (ofproto->sflow) {
1540 dpif_sflow_wait(ofproto->sflow);
1542 if (ofproto->ipfix) {
1543 dpif_ipfix_wait(ofproto->ipfix);
1545 if (ofproto->lacp_enabled || ofproto->has_bonded_bundles) {
1546 struct ofbundle *bundle;
1548 HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
1549 bundle_wait(bundle);
1552 if (ofproto->netflow) {
1553 netflow_wait(ofproto->netflow);
1555 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
1556 mac_learning_wait(ofproto->ml);
1557 ovs_rwlock_unlock(&ofproto->ml->rwlock);
1558 mcast_snooping_wait(ofproto->ms);
1560 if (ofproto->backer->need_revalidate) {
1561 /* Shouldn't happen, but if it does just go around again. */
1562 VLOG_DBG_RL(&rl, "need revalidate in ofproto_wait_cb()");
1563 poll_immediate_wake();
1566 seq_wait(udpif_dump_seq(ofproto->backer->udpif), ofproto->dump_seq);
1567 seq_wait(ofproto->pins_seq, ofproto->pins_seqno);
1571 type_get_memory_usage(const char *type, struct simap *usage)
1573 struct dpif_backer *backer;
1575 backer = shash_find_data(&all_dpif_backers, type);
1577 udpif_get_memory_usage(backer->udpif, usage);
1582 flush(struct ofproto *ofproto_)
1584 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1585 struct dpif_backer *backer = ofproto->backer;
1588 udpif_flush(backer->udpif);
1593 query_tables(struct ofproto *ofproto,
1594 struct ofputil_table_features *features,
1595 struct ofputil_table_stats *stats)
1597 strcpy(features->name, "classifier");
1602 for (i = 0; i < ofproto->n_tables; i++) {
1603 unsigned long missed, matched;
1605 atomic_read_relaxed(&ofproto->tables[i].n_matched, &matched);
1606 atomic_read_relaxed(&ofproto->tables[i].n_missed, &missed);
1608 stats[i].matched_count = matched;
1609 stats[i].lookup_count = matched + missed;
1614 static struct ofport *
1617 struct ofport_dpif *port = xmalloc(sizeof *port);
1622 port_dealloc(struct ofport *port_)
1624 struct ofport_dpif *port = ofport_dpif_cast(port_);
1629 port_construct(struct ofport *port_)
1631 struct ofport_dpif *port = ofport_dpif_cast(port_);
1632 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1633 const struct netdev *netdev = port->up.netdev;
1634 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
1635 struct dpif_port dpif_port;
1638 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1639 port->bundle = NULL;
1642 port->may_enable = false;
1643 port->stp_port = NULL;
1644 port->stp_state = STP_DISABLED;
1645 port->rstp_port = NULL;
1646 port->rstp_state = RSTP_DISABLED;
1647 port->is_tunnel = false;
1651 port->realdev_ofp_port = 0;
1652 port->vlandev_vid = 0;
1653 port->carrier_seq = netdev_get_carrier_resets(netdev);
1654 port->is_layer3 = netdev_vport_is_layer3(netdev);
1656 if (netdev_vport_is_patch(netdev)) {
1657 /* By bailing out here, we don't submit the port to the sFlow module
1658 * to be considered for counter polling export. This is correct
1659 * because the patch port represents an interface that sFlow considers
1660 * to be "internal" to the switch as a whole, and therefore not an
1661 * candidate for counter polling. */
1662 port->odp_port = ODPP_NONE;
1663 ofport_update_peer(port);
1667 error = dpif_port_query_by_name(ofproto->backer->dpif,
1668 netdev_vport_get_dpif_port(netdev, namebuf,
1675 port->odp_port = dpif_port.port_no;
1677 if (netdev_get_tunnel_config(netdev)) {
1678 tnl_port_add(port, port->up.netdev, port->odp_port);
1679 port->is_tunnel = true;
1680 if (ofproto->ipfix) {
1681 dpif_ipfix_add_tunnel_port(ofproto->ipfix, port_, port->odp_port);
1684 /* Sanity-check that a mapping doesn't already exist. This
1685 * shouldn't happen for non-tunnel ports. */
1686 if (odp_port_to_ofp_port(ofproto, port->odp_port) != OFPP_NONE) {
1687 VLOG_ERR("port %s already has an OpenFlow port number",
1689 dpif_port_destroy(&dpif_port);
1693 ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
1694 hmap_insert(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node,
1695 hash_odp_port(port->odp_port));
1696 ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
1698 dpif_port_destroy(&dpif_port);
1700 if (ofproto->sflow) {
1701 dpif_sflow_add_port(ofproto->sflow, port_, port->odp_port);
1708 port_destruct(struct ofport *port_)
1710 struct ofport_dpif *port = ofport_dpif_cast(port_);
1711 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1712 const char *devname = netdev_get_name(port->up.netdev);
1713 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
1714 const char *dp_port_name;
1716 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1718 xlate_ofport_remove(port);
1721 dp_port_name = netdev_vport_get_dpif_port(port->up.netdev, namebuf,
1723 if (dpif_port_exists(ofproto->backer->dpif, dp_port_name)) {
1724 /* The underlying device is still there, so delete it. This
1725 * happens when the ofproto is being destroyed, since the caller
1726 * assumes that removal of attached ports will happen as part of
1728 if (!port->is_tunnel) {
1729 dpif_port_del(ofproto->backer->dpif, port->odp_port);
1734 port->peer->peer = NULL;
1738 if (port->odp_port != ODPP_NONE && !port->is_tunnel) {
1739 ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
1740 hmap_remove(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node);
1741 ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
1744 if (port->is_tunnel && ofproto->ipfix) {
1745 dpif_ipfix_del_tunnel_port(ofproto->ipfix, port->odp_port);
1749 sset_find_and_delete(&ofproto->ports, devname);
1750 sset_find_and_delete(&ofproto->ghost_ports, devname);
1751 bundle_remove(port_);
1752 set_cfm(port_, NULL);
1753 set_bfd(port_, NULL);
1754 if (port->stp_port) {
1755 stp_port_disable(port->stp_port);
1757 set_rstp_port(port_, NULL);
1758 if (ofproto->sflow) {
1759 dpif_sflow_del_port(ofproto->sflow, port->odp_port);
1766 port_modified(struct ofport *port_)
1768 struct ofport_dpif *port = ofport_dpif_cast(port_);
1770 if (port->bundle && port->bundle->bond) {
1771 bond_slave_set_netdev(port->bundle->bond, port, port->up.netdev);
1775 cfm_set_netdev(port->cfm, port->up.netdev);
1779 bfd_set_netdev(port->bfd, port->up.netdev);
1782 ofproto_dpif_monitor_port_update(port, port->bfd, port->cfm,
1783 port->up.pp.hw_addr);
1785 if (port->is_tunnel && tnl_port_reconfigure(port, port->up.netdev,
1787 ofproto_dpif_cast(port->up.ofproto)->backer->need_revalidate =
1791 ofport_update_peer(port);
1795 port_reconfigured(struct ofport *port_, enum ofputil_port_config old_config)
1797 struct ofport_dpif *port = ofport_dpif_cast(port_);
1798 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
1799 enum ofputil_port_config changed = old_config ^ port->up.pp.config;
1801 if (changed & (OFPUTIL_PC_NO_RECV | OFPUTIL_PC_NO_RECV_STP |
1802 OFPUTIL_PC_NO_FWD | OFPUTIL_PC_NO_FLOOD |
1803 OFPUTIL_PC_NO_PACKET_IN)) {
1804 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1806 if (changed & OFPUTIL_PC_NO_FLOOD && port->bundle) {
1807 bundle_update(port->bundle);
1813 set_sflow(struct ofproto *ofproto_,
1814 const struct ofproto_sflow_options *sflow_options)
1816 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1817 struct dpif_sflow *ds = ofproto->sflow;
1819 if (sflow_options) {
1821 struct ofport_dpif *ofport;
1823 ds = ofproto->sflow = dpif_sflow_create();
1824 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1825 dpif_sflow_add_port(ds, &ofport->up, ofport->odp_port);
1827 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1829 dpif_sflow_set_options(ds, sflow_options);
1832 dpif_sflow_unref(ds);
1833 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1834 ofproto->sflow = NULL;
1842 struct ofproto *ofproto_,
1843 const struct ofproto_ipfix_bridge_exporter_options *bridge_exporter_options,
1844 const struct ofproto_ipfix_flow_exporter_options *flow_exporters_options,
1845 size_t n_flow_exporters_options)
1847 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
1848 struct dpif_ipfix *di = ofproto->ipfix;
1849 bool has_options = bridge_exporter_options || flow_exporters_options;
1850 bool new_di = false;
1852 if (has_options && !di) {
1853 di = ofproto->ipfix = dpif_ipfix_create();
1858 /* Call set_options in any case to cleanly flush the flow
1859 * caches in the last exporters that are to be destroyed. */
1860 dpif_ipfix_set_options(
1861 di, bridge_exporter_options, flow_exporters_options,
1862 n_flow_exporters_options);
1864 /* Add tunnel ports only when a new ipfix created */
1865 if (new_di == true) {
1866 struct ofport_dpif *ofport;
1867 HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
1868 if (ofport->is_tunnel == true) {
1869 dpif_ipfix_add_tunnel_port(di, &ofport->up, ofport->odp_port);
1875 dpif_ipfix_unref(di);
1876 ofproto->ipfix = NULL;
1884 set_cfm(struct ofport *ofport_, const struct cfm_settings *s)
1886 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1891 struct ofproto_dpif *ofproto;
1893 ofproto = ofproto_dpif_cast(ofport->up.ofproto);
1894 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1895 ofport->cfm = cfm_create(ofport->up.netdev);
1898 if (cfm_configure(ofport->cfm, s)) {
1905 cfm_unref(ofport->cfm);
1908 ofproto_dpif_monitor_port_update(ofport, ofport->bfd, ofport->cfm,
1909 ofport->up.pp.hw_addr);
1914 cfm_status_changed(struct ofport *ofport_)
1916 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1918 return ofport->cfm ? cfm_check_status_change(ofport->cfm) : true;
1922 get_cfm_status(const struct ofport *ofport_,
1923 struct cfm_status *status)
1925 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1929 cfm_get_status(ofport->cfm, status);
1938 set_bfd(struct ofport *ofport_, const struct smap *cfg)
1940 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto);
1941 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1945 ofport->bfd = bfd_configure(old, netdev_get_name(ofport->up.netdev),
1946 cfg, ofport->up.netdev);
1947 if (ofport->bfd != old) {
1948 ofproto->backer->need_revalidate = REV_RECONFIGURE;
1950 ofproto_dpif_monitor_port_update(ofport, ofport->bfd, ofport->cfm,
1951 ofport->up.pp.hw_addr);
1956 bfd_status_changed(struct ofport *ofport_)
1958 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1960 return ofport->bfd ? bfd_check_status_change(ofport->bfd) : true;
1964 get_bfd_status(struct ofport *ofport_, struct smap *smap)
1966 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
1970 bfd_get_status(ofport->bfd, smap);
1978 /* Spanning Tree. */
1980 /* Called while rstp_mutex is held. */
1982 rstp_send_bpdu_cb(struct ofpbuf *pkt, void *ofport_, void *ofproto_)
1984 struct ofproto_dpif *ofproto = ofproto_;
1985 struct ofport_dpif *ofport = ofport_;
1986 struct eth_header *eth = ofpbuf_l2(pkt);
1988 netdev_get_etheraddr(ofport->up.netdev, eth->eth_src);
1989 if (eth_addr_is_zero(eth->eth_src)) {
1990 VLOG_WARN_RL(&rl, "%s port %d: cannot send RSTP BPDU on a port which "
1991 "does not have a configured source MAC address.",
1992 ofproto->up.name, ofp_to_u16(ofport->up.ofp_port));
1994 ofproto_dpif_send_packet(ofport, pkt);
2000 send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_)
2002 struct ofproto_dpif *ofproto = ofproto_;
2003 struct stp_port *sp = stp_get_port(ofproto->stp, port_num);
2004 struct ofport_dpif *ofport;
2006 ofport = stp_port_get_aux(sp);
2008 VLOG_WARN_RL(&rl, "%s: cannot send BPDU on unknown port %d",
2009 ofproto->up.name, port_num);
2011 struct eth_header *eth = ofpbuf_l2(pkt);
2013 netdev_get_etheraddr(ofport->up.netdev, eth->eth_src);
2014 if (eth_addr_is_zero(eth->eth_src)) {
2015 VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d "
2016 "with unknown MAC", ofproto->up.name, port_num);
2018 ofproto_dpif_send_packet(ofport, pkt);
2024 /* Configure RSTP on 'ofproto_' using the settings defined in 's'. */
2026 set_rstp(struct ofproto *ofproto_, const struct ofproto_rstp_settings *s)
2028 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2030 /* Only revalidate flows if the configuration changed. */
2031 if (!s != !ofproto->rstp) {
2032 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2036 if (!ofproto->rstp) {
2037 ofproto->rstp = rstp_create(ofproto_->name, s->address,
2038 rstp_send_bpdu_cb, ofproto);
2039 ofproto->rstp_last_tick = time_msec();
2041 rstp_set_bridge_address(ofproto->rstp, s->address);
2042 rstp_set_bridge_priority(ofproto->rstp, s->priority);
2043 rstp_set_bridge_ageing_time(ofproto->rstp, s->ageing_time);
2044 rstp_set_bridge_force_protocol_version(ofproto->rstp,
2045 s->force_protocol_version);
2046 rstp_set_bridge_max_age(ofproto->rstp, s->bridge_max_age);
2047 rstp_set_bridge_forward_delay(ofproto->rstp, s->bridge_forward_delay);
2048 rstp_set_bridge_transmit_hold_count(ofproto->rstp,
2049 s->transmit_hold_count);
2051 struct ofport *ofport;
2052 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
2053 set_rstp_port(ofport, NULL);
2055 rstp_unref(ofproto->rstp);
2056 ofproto->rstp = NULL;
2061 get_rstp_status(struct ofproto *ofproto_, struct ofproto_rstp_status *s)
2063 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2065 if (ofproto->rstp) {
2067 s->root_id = rstp_get_root_id(ofproto->rstp);
2068 s->bridge_id = rstp_get_bridge_id(ofproto->rstp);
2069 s->designated_id = rstp_get_designated_id(ofproto->rstp);
2070 s->root_path_cost = rstp_get_root_path_cost(ofproto->rstp);
2071 s->designated_port_id = rstp_get_designated_port_id(ofproto->rstp);
2072 s->bridge_port_id = rstp_get_bridge_port_id(ofproto->rstp);
2079 update_rstp_port_state(struct ofport_dpif *ofport)
2081 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2082 enum rstp_state state;
2084 /* Figure out new state. */
2085 state = ofport->rstp_port ? rstp_port_get_state(ofport->rstp_port)
2089 if (ofport->rstp_state != state) {
2090 enum ofputil_port_state of_state;
2093 VLOG_DBG("port %s: RSTP state changed from %s to %s",
2094 netdev_get_name(ofport->up.netdev),
2095 rstp_state_name(ofport->rstp_state),
2096 rstp_state_name(state));
2097 if (rstp_learn_in_state(ofport->rstp_state)
2098 != rstp_learn_in_state(state)) {
2099 /* xxx Learning action flows should also be flushed. */
2100 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2101 mac_learning_flush(ofproto->ml);
2102 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2104 fwd_change = rstp_forward_in_state(ofport->rstp_state)
2105 != rstp_forward_in_state(state);
2107 ofproto->backer->need_revalidate = REV_RSTP;
2108 ofport->rstp_state = state;
2110 if (fwd_change && ofport->bundle) {
2111 bundle_update(ofport->bundle);
2114 /* Update the RSTP state bits in the OpenFlow port description. */
2115 of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK;
2116 of_state |= (state == RSTP_LEARNING ? OFPUTIL_PS_STP_LEARN
2117 : state == RSTP_FORWARDING ? OFPUTIL_PS_STP_FORWARD
2118 : state == RSTP_DISCARDING ? OFPUTIL_PS_STP_LISTEN
2120 ofproto_port_set_state(&ofport->up, of_state);
2125 rstp_run(struct ofproto_dpif *ofproto)
2127 if (ofproto->rstp) {
2128 long long int now = time_msec();
2129 long long int elapsed = now - ofproto->rstp_last_tick;
2130 struct rstp_port *rp;
2131 struct ofport_dpif *ofport;
2133 /* Every second, decrease the values of the timers. */
2134 if (elapsed >= 1000) {
2135 rstp_tick_timers(ofproto->rstp);
2136 ofproto->rstp_last_tick = now;
2139 while ((ofport = rstp_get_next_changed_port_aux(ofproto->rstp, &rp))) {
2140 update_rstp_port_state(ofport);
2142 /* FIXME: This check should be done on-event (i.e., when setting
2143 * p->fdb_flush) and not periodically.
2145 if (rstp_check_and_reset_fdb_flush(ofproto->rstp)) {
2146 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2147 /* FIXME: RSTP should be able to flush the entries pertaining to a
2148 * single port, not the whole table.
2150 mac_learning_flush(ofproto->ml);
2151 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2156 /* Configures STP on 'ofproto_' using the settings defined in 's'. */
2158 set_stp(struct ofproto *ofproto_, const struct ofproto_stp_settings *s)
2160 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2162 /* Only revalidate flows if the configuration changed. */
2163 if (!s != !ofproto->stp) {
2164 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2168 if (!ofproto->stp) {
2169 ofproto->stp = stp_create(ofproto_->name, s->system_id,
2170 send_bpdu_cb, ofproto);
2171 ofproto->stp_last_tick = time_msec();
2174 stp_set_bridge_id(ofproto->stp, s->system_id);
2175 stp_set_bridge_priority(ofproto->stp, s->priority);
2176 stp_set_hello_time(ofproto->stp, s->hello_time);
2177 stp_set_max_age(ofproto->stp, s->max_age);
2178 stp_set_forward_delay(ofproto->stp, s->fwd_delay);
2180 struct ofport *ofport;
2182 HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
2183 set_stp_port(ofport, NULL);
2186 stp_unref(ofproto->stp);
2187 ofproto->stp = NULL;
2194 get_stp_status(struct ofproto *ofproto_, struct ofproto_stp_status *s)
2196 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2200 s->bridge_id = stp_get_bridge_id(ofproto->stp);
2201 s->designated_root = stp_get_designated_root(ofproto->stp);
2202 s->root_path_cost = stp_get_root_path_cost(ofproto->stp);
2211 update_stp_port_state(struct ofport_dpif *ofport)
2213 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2214 enum stp_state state;
2216 /* Figure out new state. */
2217 state = ofport->stp_port ? stp_port_get_state(ofport->stp_port)
2221 if (ofport->stp_state != state) {
2222 enum ofputil_port_state of_state;
2225 VLOG_DBG("port %s: STP state changed from %s to %s",
2226 netdev_get_name(ofport->up.netdev),
2227 stp_state_name(ofport->stp_state),
2228 stp_state_name(state));
2229 if (stp_learn_in_state(ofport->stp_state)
2230 != stp_learn_in_state(state)) {
2231 /* xxx Learning action flows should also be flushed. */
2232 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2233 mac_learning_flush(ofproto->ml);
2234 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2235 mcast_snooping_mdb_flush(ofproto->ms);
2237 fwd_change = stp_forward_in_state(ofport->stp_state)
2238 != stp_forward_in_state(state);
2240 ofproto->backer->need_revalidate = REV_STP;
2241 ofport->stp_state = state;
2242 ofport->stp_state_entered = time_msec();
2244 if (fwd_change && ofport->bundle) {
2245 bundle_update(ofport->bundle);
2248 /* Update the STP state bits in the OpenFlow port description. */
2249 of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK;
2250 of_state |= (state == STP_LISTENING ? OFPUTIL_PS_STP_LISTEN
2251 : state == STP_LEARNING ? OFPUTIL_PS_STP_LEARN
2252 : state == STP_FORWARDING ? OFPUTIL_PS_STP_FORWARD
2253 : state == STP_BLOCKING ? OFPUTIL_PS_STP_BLOCK
2255 ofproto_port_set_state(&ofport->up, of_state);
2259 /* Configures STP on 'ofport_' using the settings defined in 's'. The
2260 * caller is responsible for assigning STP port numbers and ensuring
2261 * there are no duplicates. */
2263 set_stp_port(struct ofport *ofport_,
2264 const struct ofproto_port_stp_settings *s)
2266 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2267 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2268 struct stp_port *sp = ofport->stp_port;
2270 if (!s || !s->enable) {
2272 ofport->stp_port = NULL;
2273 stp_port_disable(sp);
2274 update_stp_port_state(ofport);
2277 } else if (sp && stp_port_no(sp) != s->port_num
2278 && ofport == stp_port_get_aux(sp)) {
2279 /* The port-id changed, so disable the old one if it's not
2280 * already in use by another port. */
2281 stp_port_disable(sp);
2284 sp = ofport->stp_port = stp_get_port(ofproto->stp, s->port_num);
2286 /* Set name before enabling the port so that debugging messages can print
2288 stp_port_set_name(sp, netdev_get_name(ofport->up.netdev));
2289 stp_port_enable(sp);
2291 stp_port_set_aux(sp, ofport);
2292 stp_port_set_priority(sp, s->priority);
2293 stp_port_set_path_cost(sp, s->path_cost);
2295 update_stp_port_state(ofport);
2301 get_stp_port_status(struct ofport *ofport_,
2302 struct ofproto_port_stp_status *s)
2304 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2305 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2306 struct stp_port *sp = ofport->stp_port;
2308 if (!ofproto->stp || !sp) {
2314 s->port_id = stp_port_get_id(sp);
2315 s->state = stp_port_get_state(sp);
2316 s->sec_in_state = (time_msec() - ofport->stp_state_entered) / 1000;
2317 s->role = stp_port_get_role(sp);
2323 get_stp_port_stats(struct ofport *ofport_,
2324 struct ofproto_port_stp_stats *s)
2326 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2327 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2328 struct stp_port *sp = ofport->stp_port;
2330 if (!ofproto->stp || !sp) {
2336 stp_port_get_counts(sp, &s->tx_count, &s->rx_count, &s->error_count);
2342 stp_run(struct ofproto_dpif *ofproto)
2345 long long int now = time_msec();
2346 long long int elapsed = now - ofproto->stp_last_tick;
2347 struct stp_port *sp;
2350 stp_tick(ofproto->stp, MIN(INT_MAX, elapsed));
2351 ofproto->stp_last_tick = now;
2353 while (stp_get_changed_port(ofproto->stp, &sp)) {
2354 struct ofport_dpif *ofport = stp_port_get_aux(sp);
2357 update_stp_port_state(ofport);
2361 if (stp_check_and_reset_fdb_flush(ofproto->stp)) {
2362 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2363 mac_learning_flush(ofproto->ml);
2364 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2365 mcast_snooping_mdb_flush(ofproto->ms);
2371 stp_wait(struct ofproto_dpif *ofproto)
2374 poll_timer_wait(1000);
2378 /* Configures RSTP on 'ofport_' using the settings defined in 's'. The
2379 * caller is responsible for assigning RSTP port numbers and ensuring
2380 * there are no duplicates. */
2382 set_rstp_port(struct ofport *ofport_,
2383 const struct ofproto_port_rstp_settings *s)
2385 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2386 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2387 struct rstp_port *rp = ofport->rstp_port;
2389 if (!s || !s->enable) {
2391 rstp_port_unref(rp);
2392 ofport->rstp_port = NULL;
2393 update_rstp_port_state(ofport);
2398 /* Check if need to add a new port. */
2400 rp = ofport->rstp_port = rstp_add_port(ofproto->rstp);
2403 rstp_port_set(rp, s->port_num, s->priority, s->path_cost,
2404 s->admin_edge_port, s->auto_edge, s->mcheck, ofport);
2405 update_rstp_port_state(ofport);
2406 /* Synchronize operational status. */
2407 rstp_port_set_mac_operational(rp, ofport->may_enable);
2411 get_rstp_port_status(struct ofport *ofport_,
2412 struct ofproto_port_rstp_status *s)
2414 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2415 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2416 struct rstp_port *rp = ofport->rstp_port;
2418 if (!ofproto->rstp || !rp) {
2424 rstp_port_get_status(rp, &s->port_id, &s->state, &s->role, &s->tx_count,
2425 &s->rx_count, &s->error_count, &s->uptime);
2430 set_queues(struct ofport *ofport_, const struct ofproto_port_queue *qdscp,
2433 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
2434 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
2436 if (ofport->n_qdscp != n_qdscp
2437 || (n_qdscp && memcmp(ofport->qdscp, qdscp,
2438 n_qdscp * sizeof *qdscp))) {
2439 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2440 free(ofport->qdscp);
2441 ofport->qdscp = n_qdscp
2442 ? xmemdup(qdscp, n_qdscp * sizeof *qdscp)
2444 ofport->n_qdscp = n_qdscp;
2452 /* Expires all MAC learning entries associated with 'bundle' and forces its
2453 * ofproto to revalidate every flow.
2455 * Normally MAC learning entries are removed only from the ofproto associated
2456 * with 'bundle', but if 'all_ofprotos' is true, then the MAC learning entries
2457 * are removed from every ofproto. When patch ports and SLB bonds are in use
2458 * and a VM migration happens and the gratuitous ARPs are somehow lost, this
2459 * avoids a MAC_ENTRY_IDLE_TIME delay before the migrated VM can communicate
2460 * with the host from which it migrated. */
2462 bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos)
2464 struct ofproto_dpif *ofproto = bundle->ofproto;
2465 struct mac_learning *ml = ofproto->ml;
2466 struct mac_entry *mac, *next_mac;
2468 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2469 ovs_rwlock_wrlock(&ml->rwlock);
2470 LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
2471 if (mac->port.p == bundle) {
2473 struct ofproto_dpif *o;
2475 HMAP_FOR_EACH (o, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
2477 struct mac_entry *e;
2479 ovs_rwlock_wrlock(&o->ml->rwlock);
2480 e = mac_learning_lookup(o->ml, mac->mac, mac->vlan);
2482 mac_learning_expire(o->ml, e);
2484 ovs_rwlock_unlock(&o->ml->rwlock);
2489 mac_learning_expire(ml, mac);
2492 ovs_rwlock_unlock(&ml->rwlock);
2495 static struct ofbundle *
2496 bundle_lookup(const struct ofproto_dpif *ofproto, void *aux)
2498 struct ofbundle *bundle;
2500 HMAP_FOR_EACH_IN_BUCKET (bundle, hmap_node, hash_pointer(aux, 0),
2501 &ofproto->bundles) {
2502 if (bundle->aux == aux) {
2510 bundle_update(struct ofbundle *bundle)
2512 struct ofport_dpif *port;
2514 bundle->floodable = true;
2515 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2516 if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
2518 || !stp_forward_in_state(port->stp_state)) {
2519 bundle->floodable = false;
2526 bundle_del_port(struct ofport_dpif *port)
2528 struct ofbundle *bundle = port->bundle;
2530 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2532 list_remove(&port->bundle_node);
2533 port->bundle = NULL;
2536 lacp_slave_unregister(bundle->lacp, port);
2539 bond_slave_unregister(bundle->bond, port);
2542 bundle_update(bundle);
2546 bundle_add_port(struct ofbundle *bundle, ofp_port_t ofp_port,
2547 struct lacp_slave_settings *lacp)
2549 struct ofport_dpif *port;
2551 port = get_ofp_port(bundle->ofproto, ofp_port);
2556 if (port->bundle != bundle) {
2557 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2559 bundle_remove(&port->up);
2562 port->bundle = bundle;
2563 list_push_back(&bundle->ports, &port->bundle_node);
2564 if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
2566 || !stp_forward_in_state(port->stp_state)) {
2567 bundle->floodable = false;
2571 bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
2572 lacp_slave_register(bundle->lacp, port, lacp);
2579 bundle_destroy(struct ofbundle *bundle)
2581 struct ofproto_dpif *ofproto;
2582 struct ofport_dpif *port, *next_port;
2588 ofproto = bundle->ofproto;
2589 mbridge_unregister_bundle(ofproto->mbridge, bundle->aux);
2592 xlate_bundle_remove(bundle);
2595 LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
2596 bundle_del_port(port);
2599 bundle_flush_macs(bundle, true);
2600 hmap_remove(&ofproto->bundles, &bundle->hmap_node);
2602 free(bundle->trunks);
2603 lacp_unref(bundle->lacp);
2604 bond_unref(bundle->bond);
2609 bundle_set(struct ofproto *ofproto_, void *aux,
2610 const struct ofproto_bundle_settings *s)
2612 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2613 bool need_flush = false;
2614 struct ofport_dpif *port;
2615 struct ofbundle *bundle;
2616 unsigned long *trunks;
2622 bundle_destroy(bundle_lookup(ofproto, aux));
2626 ovs_assert(s->n_slaves == 1 || s->bond != NULL);
2627 ovs_assert((s->lacp != NULL) == (s->lacp_slaves != NULL));
2629 bundle = bundle_lookup(ofproto, aux);
2631 bundle = xmalloc(sizeof *bundle);
2633 bundle->ofproto = ofproto;
2634 hmap_insert(&ofproto->bundles, &bundle->hmap_node,
2635 hash_pointer(aux, 0));
2637 bundle->name = NULL;
2639 list_init(&bundle->ports);
2640 bundle->vlan_mode = PORT_VLAN_TRUNK;
2642 bundle->trunks = NULL;
2643 bundle->use_priority_tags = s->use_priority_tags;
2644 bundle->lacp = NULL;
2645 bundle->bond = NULL;
2647 bundle->floodable = true;
2648 mbridge_register_bundle(ofproto->mbridge, bundle);
2651 if (!bundle->name || strcmp(s->name, bundle->name)) {
2653 bundle->name = xstrdup(s->name);
2658 ofproto->lacp_enabled = true;
2659 if (!bundle->lacp) {
2660 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2661 bundle->lacp = lacp_create();
2663 lacp_configure(bundle->lacp, s->lacp);
2665 lacp_unref(bundle->lacp);
2666 bundle->lacp = NULL;
2669 /* Update set of ports. */
2671 for (i = 0; i < s->n_slaves; i++) {
2672 if (!bundle_add_port(bundle, s->slaves[i],
2673 s->lacp ? &s->lacp_slaves[i] : NULL)) {
2677 if (!ok || list_size(&bundle->ports) != s->n_slaves) {
2678 struct ofport_dpif *next_port;
2680 LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
2681 for (i = 0; i < s->n_slaves; i++) {
2682 if (s->slaves[i] == port->up.ofp_port) {
2687 bundle_del_port(port);
2691 ovs_assert(list_size(&bundle->ports) <= s->n_slaves);
2693 if (list_is_empty(&bundle->ports)) {
2694 bundle_destroy(bundle);
2698 /* Set VLAN tagging mode */
2699 if (s->vlan_mode != bundle->vlan_mode
2700 || s->use_priority_tags != bundle->use_priority_tags) {
2701 bundle->vlan_mode = s->vlan_mode;
2702 bundle->use_priority_tags = s->use_priority_tags;
2707 vlan = (s->vlan_mode == PORT_VLAN_TRUNK ? -1
2708 : s->vlan >= 0 && s->vlan <= 4095 ? s->vlan
2710 if (vlan != bundle->vlan) {
2711 bundle->vlan = vlan;
2715 /* Get trunked VLANs. */
2716 switch (s->vlan_mode) {
2717 case PORT_VLAN_ACCESS:
2721 case PORT_VLAN_TRUNK:
2722 trunks = CONST_CAST(unsigned long *, s->trunks);
2725 case PORT_VLAN_NATIVE_UNTAGGED:
2726 case PORT_VLAN_NATIVE_TAGGED:
2727 if (vlan != 0 && (!s->trunks
2728 || !bitmap_is_set(s->trunks, vlan)
2729 || bitmap_is_set(s->trunks, 0))) {
2730 /* Force trunking the native VLAN and prohibit trunking VLAN 0. */
2732 trunks = bitmap_clone(s->trunks, 4096);
2734 trunks = bitmap_allocate1(4096);
2736 bitmap_set1(trunks, vlan);
2737 bitmap_set0(trunks, 0);
2739 trunks = CONST_CAST(unsigned long *, s->trunks);
2746 if (!vlan_bitmap_equal(trunks, bundle->trunks)) {
2747 free(bundle->trunks);
2748 if (trunks == s->trunks) {
2749 bundle->trunks = vlan_bitmap_clone(trunks);
2751 bundle->trunks = trunks;
2756 if (trunks != s->trunks) {
2761 if (!list_is_short(&bundle->ports)) {
2762 bundle->ofproto->has_bonded_bundles = true;
2764 if (bond_reconfigure(bundle->bond, s->bond)) {
2765 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2768 bundle->bond = bond_create(s->bond, ofproto);
2769 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2772 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2773 bond_slave_register(bundle->bond, port,
2774 port->up.ofp_port, port->up.netdev);
2777 bond_unref(bundle->bond);
2778 bundle->bond = NULL;
2781 /* If we changed something that would affect MAC learning, un-learn
2782 * everything on this port and force flow revalidation. */
2784 bundle_flush_macs(bundle, false);
2791 bundle_remove(struct ofport *port_)
2793 struct ofport_dpif *port = ofport_dpif_cast(port_);
2794 struct ofbundle *bundle = port->bundle;
2797 bundle_del_port(port);
2798 if (list_is_empty(&bundle->ports)) {
2799 bundle_destroy(bundle);
2800 } else if (list_is_short(&bundle->ports)) {
2801 bond_unref(bundle->bond);
2802 bundle->bond = NULL;
2808 send_pdu_cb(void *port_, const void *pdu, size_t pdu_size)
2810 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
2811 struct ofport_dpif *port = port_;
2812 uint8_t ea[ETH_ADDR_LEN];
2815 error = netdev_get_etheraddr(port->up.netdev, ea);
2817 struct ofpbuf packet;
2820 ofpbuf_init(&packet, 0);
2821 packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP,
2823 memcpy(packet_pdu, pdu, pdu_size);
2825 ofproto_dpif_send_packet(port, &packet);
2826 ofpbuf_uninit(&packet);
2828 VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface "
2829 "%s (%s)", port->bundle->name,
2830 netdev_get_name(port->up.netdev), ovs_strerror(error));
2835 bundle_send_learning_packets(struct ofbundle *bundle)
2837 struct ofproto_dpif *ofproto = bundle->ofproto;
2838 struct ofpbuf *learning_packet;
2839 int error, n_packets, n_errors;
2840 struct mac_entry *e;
2841 struct list packets;
2843 list_init(&packets);
2844 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
2845 LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
2846 if (e->port.p != bundle) {
2849 learning_packet = bond_compose_learning_packet(bundle->bond,
2852 /* Temporarily use 'frame' as a private pointer (see below). */
2853 ovs_assert(learning_packet->frame == ofpbuf_data(learning_packet));
2854 learning_packet->frame = port_void;
2855 list_push_back(&packets, &learning_packet->list_node);
2858 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2860 error = n_packets = n_errors = 0;
2861 LIST_FOR_EACH (learning_packet, list_node, &packets) {
2863 void *port_void = learning_packet->frame;
2865 /* Restore 'frame'. */
2866 learning_packet->frame = ofpbuf_data(learning_packet);
2867 ret = ofproto_dpif_send_packet(port_void, learning_packet);
2874 ofpbuf_list_delete(&packets);
2877 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2878 VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning "
2879 "packets, last error was: %s",
2880 bundle->name, n_errors, n_packets, ovs_strerror(error));
2882 VLOG_DBG("bond %s: sent %d gratuitous learning packets",
2883 bundle->name, n_packets);
2888 bundle_run(struct ofbundle *bundle)
2891 lacp_run(bundle->lacp, send_pdu_cb);
2894 struct ofport_dpif *port;
2896 LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
2897 bond_slave_set_may_enable(bundle->bond, port, port->may_enable);
2900 if (bond_run(bundle->bond, lacp_status(bundle->lacp))) {
2901 bundle->ofproto->backer->need_revalidate = REV_BOND;
2904 if (bond_should_send_learning_packets(bundle->bond)) {
2905 bundle_send_learning_packets(bundle);
2911 bundle_wait(struct ofbundle *bundle)
2914 lacp_wait(bundle->lacp);
2917 bond_wait(bundle->bond);
2924 mirror_set__(struct ofproto *ofproto_, void *aux,
2925 const struct ofproto_mirror_settings *s)
2927 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2928 struct ofbundle **srcs, **dsts;
2933 mirror_destroy(ofproto->mbridge, aux);
2937 srcs = xmalloc(s->n_srcs * sizeof *srcs);
2938 dsts = xmalloc(s->n_dsts * sizeof *dsts);
2940 for (i = 0; i < s->n_srcs; i++) {
2941 srcs[i] = bundle_lookup(ofproto, s->srcs[i]);
2944 for (i = 0; i < s->n_dsts; i++) {
2945 dsts[i] = bundle_lookup(ofproto, s->dsts[i]);
2948 error = mirror_set(ofproto->mbridge, aux, s->name, srcs, s->n_srcs, dsts,
2949 s->n_dsts, s->src_vlans,
2950 bundle_lookup(ofproto, s->out_bundle), s->out_vlan);
2957 mirror_get_stats__(struct ofproto *ofproto, void *aux,
2958 uint64_t *packets, uint64_t *bytes)
2960 return mirror_get_stats(ofproto_dpif_cast(ofproto)->mbridge, aux, packets,
2965 set_flood_vlans(struct ofproto *ofproto_, unsigned long *flood_vlans)
2967 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2968 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2969 if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) {
2970 mac_learning_flush(ofproto->ml);
2972 ovs_rwlock_unlock(&ofproto->ml->rwlock);
2977 is_mirror_output_bundle(const struct ofproto *ofproto_, void *aux)
2979 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2980 struct ofbundle *bundle = bundle_lookup(ofproto, aux);
2981 return bundle && mirror_bundle_out(ofproto->mbridge, bundle) != 0;
2985 forward_bpdu_changed(struct ofproto *ofproto_)
2987 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2988 ofproto->backer->need_revalidate = REV_RECONFIGURE;
2992 set_mac_table_config(struct ofproto *ofproto_, unsigned int idle_time,
2995 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
2996 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
2997 mac_learning_set_idle_time(ofproto->ml, idle_time);
2998 mac_learning_set_max_entries(ofproto->ml, max_entries);
2999 ovs_rwlock_unlock(&ofproto->ml->rwlock);
3002 /* Configures multicast snooping on 'ofport' using the settings
3003 * defined in 's'. */
3005 set_mcast_snooping(struct ofproto *ofproto_,
3006 const struct ofproto_mcast_snooping_settings *s)
3008 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3010 /* Only revalidate flows if the configuration changed. */
3011 if (!s != !ofproto->ms) {
3012 ofproto->backer->need_revalidate = REV_RECONFIGURE;
3017 ofproto->ms = mcast_snooping_create();
3020 ovs_rwlock_wrlock(&ofproto->ms->rwlock);
3021 mcast_snooping_set_idle_time(ofproto->ms, s->idle_time);
3022 mcast_snooping_set_max_entries(ofproto->ms, s->max_entries);
3023 if (mcast_snooping_set_flood_unreg(ofproto->ms, s->flood_unreg)) {
3024 ofproto->backer->need_revalidate = REV_RECONFIGURE;
3026 ovs_rwlock_unlock(&ofproto->ms->rwlock);
3028 mcast_snooping_unref(ofproto->ms);
3035 /* Configures multicast snooping port's flood setting on 'ofproto'. */
3037 set_mcast_snooping_port(struct ofproto *ofproto_, void *aux, bool flood)
3039 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3040 struct ofbundle *bundle = bundle_lookup(ofproto, aux);
3043 ovs_rwlock_wrlock(&ofproto->ms->rwlock);
3044 mcast_snooping_set_port_flood(ofproto->ms, bundle->vlan, bundle,
3046 ovs_rwlock_unlock(&ofproto->ms->rwlock);
3054 static struct ofport_dpif *
3055 get_ofp_port(const struct ofproto_dpif *ofproto, ofp_port_t ofp_port)
3057 struct ofport *ofport = ofproto_get_port(&ofproto->up, ofp_port);
3058 return ofport ? ofport_dpif_cast(ofport) : NULL;
3062 ofproto_port_from_dpif_port(struct ofproto_dpif *ofproto,
3063 struct ofproto_port *ofproto_port,
3064 struct dpif_port *dpif_port)
3066 ofproto_port->name = dpif_port->name;
3067 ofproto_port->type = dpif_port->type;
3068 ofproto_port->ofp_port = odp_port_to_ofp_port(ofproto, dpif_port->port_no);
3072 ofport_update_peer(struct ofport_dpif *ofport)
3074 const struct ofproto_dpif *ofproto;
3075 struct dpif_backer *backer;
3078 if (!netdev_vport_is_patch(ofport->up.netdev)) {
3082 backer = ofproto_dpif_cast(ofport->up.ofproto)->backer;
3083 backer->need_revalidate = REV_RECONFIGURE;
3086 ofport->peer->peer = NULL;
3087 ofport->peer = NULL;
3090 peer_name = netdev_vport_patch_peer(ofport->up.netdev);
3095 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
3096 struct ofport *peer_ofport;
3097 struct ofport_dpif *peer;
3100 if (ofproto->backer != backer) {
3104 peer_ofport = shash_find_data(&ofproto->up.port_by_name, peer_name);
3109 peer = ofport_dpif_cast(peer_ofport);
3110 peer_peer = netdev_vport_patch_peer(peer->up.netdev);
3111 if (peer_peer && !strcmp(netdev_get_name(ofport->up.netdev),
3113 ofport->peer = peer;
3114 ofport->peer->peer = ofport;
3124 port_run(struct ofport_dpif *ofport)
3126 long long int carrier_seq = netdev_get_carrier_resets(ofport->up.netdev);
3127 bool carrier_changed = carrier_seq != ofport->carrier_seq;
3128 bool enable = netdev_get_carrier(ofport->up.netdev);
3129 bool cfm_enable = false;
3130 bool bfd_enable = false;
3132 ofport->carrier_seq = carrier_seq;
3135 int cfm_opup = cfm_get_opup(ofport->cfm);
3137 cfm_enable = !cfm_get_fault(ofport->cfm);
3139 if (cfm_opup >= 0) {
3140 cfm_enable = cfm_enable && cfm_opup;
3145 bfd_enable = bfd_forwarding(ofport->bfd);
3148 if (ofport->bfd || ofport->cfm) {
3149 enable = enable && (cfm_enable || bfd_enable);
3152 if (ofport->bundle) {
3153 enable = enable && lacp_slave_may_enable(ofport->bundle->lacp, ofport);
3154 if (carrier_changed) {
3155 lacp_slave_carrier_changed(ofport->bundle->lacp, ofport);
3159 if (ofport->may_enable != enable) {
3160 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
3162 ofproto->backer->need_revalidate = REV_PORT_TOGGLED;
3164 if (ofport->rstp_port) {
3165 rstp_port_set_mac_operational(ofport->rstp_port, enable);
3169 ofport->may_enable = enable;
3173 port_query_by_name(const struct ofproto *ofproto_, const char *devname,
3174 struct ofproto_port *ofproto_port)
3176 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3177 struct dpif_port dpif_port;
3180 if (sset_contains(&ofproto->ghost_ports, devname)) {
3181 const char *type = netdev_get_type_from_name(devname);
3183 /* We may be called before ofproto->up.port_by_name is populated with
3184 * the appropriate ofport. For this reason, we must get the name and
3185 * type from the netdev layer directly. */
3187 const struct ofport *ofport;
3189 ofport = shash_find_data(&ofproto->up.port_by_name, devname);
3190 ofproto_port->ofp_port = ofport ? ofport->ofp_port : OFPP_NONE;
3191 ofproto_port->name = xstrdup(devname);
3192 ofproto_port->type = xstrdup(type);
3198 if (!sset_contains(&ofproto->ports, devname)) {
3201 error = dpif_port_query_by_name(ofproto->backer->dpif,
3202 devname, &dpif_port);
3204 ofproto_port_from_dpif_port(ofproto, ofproto_port, &dpif_port);
3210 port_add(struct ofproto *ofproto_, struct netdev *netdev)
3212 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3213 const char *devname = netdev_get_name(netdev);
3214 char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
3215 const char *dp_port_name;
3217 if (netdev_vport_is_patch(netdev)) {
3218 sset_add(&ofproto->ghost_ports, netdev_get_name(netdev));
3222 dp_port_name = netdev_vport_get_dpif_port(netdev, namebuf, sizeof namebuf);
3223 if (!dpif_port_exists(ofproto->backer->dpif, dp_port_name)) {
3224 odp_port_t port_no = ODPP_NONE;
3227 error = dpif_port_add(ofproto->backer->dpif, netdev, &port_no);
3231 if (netdev_get_tunnel_config(netdev)) {
3232 simap_put(&ofproto->backer->tnl_backers,
3233 dp_port_name, odp_to_u32(port_no));
3237 if (netdev_get_tunnel_config(netdev)) {
3238 sset_add(&ofproto->ghost_ports, devname);
3240 sset_add(&ofproto->ports, devname);
3246 port_del(struct ofproto *ofproto_, ofp_port_t ofp_port)
3248 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3249 struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port);
3256 sset_find_and_delete(&ofproto->ghost_ports,
3257 netdev_get_name(ofport->up.netdev));
3258 ofproto->backer->need_revalidate = REV_RECONFIGURE;
3259 if (!ofport->is_tunnel && !netdev_vport_is_patch(ofport->up.netdev)) {
3260 error = dpif_port_del(ofproto->backer->dpif, ofport->odp_port);
3262 /* The caller is going to close ofport->up.netdev. If this is a
3263 * bonded port, then the bond is using that netdev, so remove it
3264 * from the bond. The client will need to reconfigure everything
3265 * after deleting ports, so then the slave will get re-added. */
3266 bundle_remove(&ofport->up);
3273 port_get_stats(const struct ofport *ofport_, struct netdev_stats *stats)
3275 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
3278 error = netdev_get_stats(ofport->up.netdev, stats);
3280 if (!error && ofport_->ofp_port == OFPP_LOCAL) {
3281 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
3283 ovs_mutex_lock(&ofproto->stats_mutex);
3284 /* ofproto->stats.tx_packets represents packets that we created
3285 * internally and sent to some port (e.g. packets sent with
3286 * ofproto_dpif_send_packet()). Account for them as if they had
3287 * come from OFPP_LOCAL and got forwarded. */
3289 if (stats->rx_packets != UINT64_MAX) {
3290 stats->rx_packets += ofproto->stats.tx_packets;
3293 if (stats->rx_bytes != UINT64_MAX) {
3294 stats->rx_bytes += ofproto->stats.tx_bytes;
3297 /* ofproto->stats.rx_packets represents packets that were received on
3298 * some port and we processed internally and dropped (e.g. STP).
3299 * Account for them as if they had been forwarded to OFPP_LOCAL. */
3301 if (stats->tx_packets != UINT64_MAX) {
3302 stats->tx_packets += ofproto->stats.rx_packets;
3305 if (stats->tx_bytes != UINT64_MAX) {
3306 stats->tx_bytes += ofproto->stats.rx_bytes;
3308 ovs_mutex_unlock(&ofproto->stats_mutex);
3315 port_get_lacp_stats(const struct ofport *ofport_, struct lacp_slave_stats *stats)
3317 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
3318 if (ofport->bundle && ofport->bundle->lacp) {
3319 if (lacp_get_slave_stats(ofport->bundle->lacp, ofport, stats)) {
3326 struct port_dump_state {
3331 struct ofproto_port port;
3336 port_dump_start(const struct ofproto *ofproto_ OVS_UNUSED, void **statep)
3338 *statep = xzalloc(sizeof(struct port_dump_state));
3343 port_dump_next(const struct ofproto *ofproto_, void *state_,
3344 struct ofproto_port *port)
3346 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3347 struct port_dump_state *state = state_;
3348 const struct sset *sset;
3349 struct sset_node *node;
3351 if (state->has_port) {
3352 ofproto_port_destroy(&state->port);
3353 state->has_port = false;
3355 sset = state->ghost ? &ofproto->ghost_ports : &ofproto->ports;
3356 while ((node = sset_at_position(sset, &state->bucket, &state->offset))) {
3359 error = port_query_by_name(ofproto_, node->name, &state->port);
3361 *port = state->port;
3362 state->has_port = true;
3364 } else if (error != ENODEV) {
3369 if (!state->ghost) {
3370 state->ghost = true;
3373 return port_dump_next(ofproto_, state_, port);
3380 port_dump_done(const struct ofproto *ofproto_ OVS_UNUSED, void *state_)
3382 struct port_dump_state *state = state_;
3384 if (state->has_port) {
3385 ofproto_port_destroy(&state->port);
3392 port_poll(const struct ofproto *ofproto_, char **devnamep)
3394 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3396 if (ofproto->port_poll_errno) {
3397 int error = ofproto->port_poll_errno;
3398 ofproto->port_poll_errno = 0;
3402 if (sset_is_empty(&ofproto->port_poll_set)) {
3406 *devnamep = sset_pop(&ofproto->port_poll_set);
3411 port_poll_wait(const struct ofproto *ofproto_)
3413 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
3414 dpif_port_poll_wait(ofproto->backer->dpif);
3418 port_is_lacp_current(const struct ofport *ofport_)
3420 const struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
3421 return (ofport->bundle && ofport->bundle->lacp
3422 ? lacp_slave_is_current(ofport->bundle->lacp, ofport)
3426 /* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules,
3427 * then delete it entirely. */
3429 rule_expire(struct rule_dpif *rule)
3430 OVS_REQUIRES(ofproto_mutex)
3432 uint16_t hard_timeout, idle_timeout;
3433 long long int now = time_msec();
3436 hard_timeout = rule->up.hard_timeout;
3437 idle_timeout = rule->up.idle_timeout;
3439 /* Has 'rule' expired? */
3441 long long int modified;
3443 ovs_mutex_lock(&rule->up.mutex);
3444 modified = rule->up.modified;
3445 ovs_mutex_unlock(&rule->up.mutex);
3447 if (now > modified + hard_timeout * 1000) {
3448 reason = OFPRR_HARD_TIMEOUT;
3452 if (reason < 0 && idle_timeout) {
3455 ovs_mutex_lock(&rule->stats_mutex);
3456 used = rule->stats.used;
3457 ovs_mutex_unlock(&rule->stats_mutex);
3459 if (now > used + idle_timeout * 1000) {
3460 reason = OFPRR_IDLE_TIMEOUT;
3465 COVERAGE_INC(ofproto_dpif_expired);
3466 ofproto_rule_expire(&rule->up, reason);
3470 /* Executes, within 'ofproto', the actions in 'rule' or 'ofpacts' on 'packet'.
3471 * 'flow' must reflect the data in 'packet'. */
3473 ofproto_dpif_execute_actions(struct ofproto_dpif *ofproto,
3474 const struct flow *flow,
3475 struct rule_dpif *rule,
3476 const struct ofpact *ofpacts, size_t ofpacts_len,
3477 struct ofpbuf *packet)
3479 struct dpif_flow_stats stats;
3480 struct xlate_out xout;
3481 struct xlate_in xin;
3483 struct dpif_execute execute;
3486 ovs_assert((rule != NULL) != (ofpacts != NULL));
3488 dpif_flow_stats_extract(flow, packet, time_msec(), &stats);
3491 rule_dpif_credit_stats(rule, &stats);
3494 xlate_in_init(&xin, ofproto, flow, flow->in_port.ofp_port, rule,
3495 stats.tcp_flags, packet);
3496 xin.ofpacts = ofpacts;
3497 xin.ofpacts_len = ofpacts_len;
3498 xin.resubmit_stats = &stats;
3499 xlate_actions(&xin, &xout);
3501 execute.actions = ofpbuf_data(xout.odp_actions);
3502 execute.actions_len = ofpbuf_size(xout.odp_actions);
3503 execute.packet = packet;
3504 execute.md = pkt_metadata_from_flow(flow);
3505 execute.needs_help = (xout.slow & SLOW_ACTION) != 0;
3506 execute.probe = false;
3508 /* Fix up in_port. */
3509 in_port = flow->in_port.ofp_port;
3510 if (in_port == OFPP_NONE) {
3511 in_port = OFPP_LOCAL;
3513 execute.md.in_port.odp_port = ofp_port_to_odp_port(ofproto, in_port);
3515 error = dpif_execute(ofproto->backer->dpif, &execute);
3517 xlate_out_uninit(&xout);
3523 rule_dpif_credit_stats(struct rule_dpif *rule,
3524 const struct dpif_flow_stats *stats)
3526 ovs_mutex_lock(&rule->stats_mutex);
3527 rule->stats.n_packets += stats->n_packets;
3528 rule->stats.n_bytes += stats->n_bytes;
3529 rule->stats.used = MAX(rule->stats.used, stats->used);
3530 ovs_mutex_unlock(&rule->stats_mutex);
3534 rule_dpif_get_flow_cookie(const struct rule_dpif *rule)
3535 OVS_REQUIRES(rule->up.mutex)
3537 return rule->up.flow_cookie;
3541 rule_dpif_reduce_timeouts(struct rule_dpif *rule, uint16_t idle_timeout,
3542 uint16_t hard_timeout)
3544 ofproto_rule_reduce_timeouts(&rule->up, idle_timeout, hard_timeout);
3547 /* Returns 'rule''s actions. The returned actions are RCU-protected, and can
3548 * be read until the calling thread quiesces. */
3549 const struct rule_actions *
3550 rule_dpif_get_actions(const struct rule_dpif *rule)
3552 return rule_get_actions(&rule->up);
3555 /* Sets 'rule''s recirculation id. */
3557 rule_dpif_set_recirc_id(struct rule_dpif *rule, uint32_t id)
3558 OVS_REQUIRES(rule->up.mutex)
3560 ovs_assert(!rule->recirc_id);
3561 rule->recirc_id = id;
3564 /* Returns 'rule''s recirculation id. */
3566 rule_dpif_get_recirc_id(struct rule_dpif *rule)
3567 OVS_REQUIRES(rule->up.mutex)
3569 if (!rule->recirc_id) {
3570 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
3572 rule_dpif_set_recirc_id(rule, ofproto_dpif_alloc_recirc_id(ofproto));
3574 return rule->recirc_id;
3577 /* Sets 'rule''s recirculation id. */
3579 rule_set_recirc_id(struct rule *rule_, uint32_t id)
3581 struct rule_dpif *rule = rule_dpif_cast(rule_);
3583 ovs_mutex_lock(&rule->up.mutex);
3584 rule_dpif_set_recirc_id(rule, id);
3585 ovs_mutex_unlock(&rule->up.mutex);
3588 /* Lookup 'flow' in table 0 of 'ofproto''s classifier.
3589 * If 'wc' is non-null, sets the fields that were relevant as part of
3590 * the lookup. Returns the table id where a match or miss occurred via
3591 * 'table_id'. This will be zero unless there was a miss and
3592 * OFPTC11_TABLE_MISS_CONTINUE is in effect for the sequence of tables
3593 * where misses occur, or TBL_INTERNAL if the rule has a non-zero
3594 * recirculation ID, and a match was found in the internal table, or if
3595 * there was no match and one of the special rules (drop_frags_rule,
3596 * miss_rule, or no_packet_in_rule) was returned.
3598 * The return value is the found rule, which is valid at least until the next
3599 * RCU quiescent period. If the rule needs to stay around longer,
3600 * a non-zero 'take_ref' must be passed in to cause a reference to be taken
3601 * on it before this returns. */
3603 rule_dpif_lookup(struct ofproto_dpif *ofproto, struct flow *flow,
3604 struct flow_wildcards *wc, bool take_ref,
3605 const struct dpif_flow_stats *stats, uint8_t *table_id)
3609 if (ofproto_dpif_get_enable_recirc(ofproto)) {
3610 /* Always exactly match recirc_id since datapath supports
3613 wc->masks.recirc_id = UINT32_MAX;
3615 if (flow->recirc_id) {
3616 /* Start looking up from internal table for post recirculation
3617 * flows or packets. */
3618 *table_id = TBL_INTERNAL;
3622 return rule_dpif_lookup_from_table(ofproto, flow, wc, take_ref, stats,
3623 table_id, flow->in_port.ofp_port, true,
3627 /* The returned rule (if any) is valid at least until the next RCU quiescent
3628 * period. If the rule needs to stay around longer, a non-zero 'take_ref'
3629 * must be passed in to cause a reference to be taken on it. */
3630 static struct rule_dpif *
3631 rule_dpif_lookup_in_table(struct ofproto_dpif *ofproto, uint8_t table_id,
3632 const struct flow *flow, struct flow_wildcards *wc,
3635 struct classifier *cls = &ofproto->up.tables[table_id].cls;
3636 const struct cls_rule *cls_rule;
3637 struct rule_dpif *rule;
3640 cls_rule = classifier_lookup(cls, flow, wc);
3642 rule = rule_dpif_cast(rule_from_cls_rule(cls_rule));
3644 /* Try again if the rule was released before we get the reference. */
3645 } while (rule && take_ref && !rule_dpif_try_ref(rule));
3650 /* Look up 'flow' in 'ofproto''s classifier starting from table '*table_id'.
3651 * Returns the rule that was found, which may be one of the special rules
3652 * according to packet miss hadling. If 'may_packet_in' is false, returning of
3653 * the miss_rule (which issues packet ins for the controller) is avoided.
3654 * Updates 'wc', if nonnull, to reflect the fields that were used during the
3657 * If 'honor_table_miss' is true, the first lookup occurs in '*table_id', but
3658 * if none is found then the table miss configuration for that table is
3659 * honored, which can result in additional lookups in other OpenFlow tables.
3660 * In this case the function updates '*table_id' to reflect the final OpenFlow
3661 * table that was searched.
3663 * If 'honor_table_miss' is false, then only one table lookup occurs, in
3666 * The rule is returned in '*rule', which is valid at least until the next
3667 * RCU quiescent period. If the '*rule' needs to stay around longer,
3668 * a non-zero 'take_ref' must be passed in to cause a reference to be taken
3669 * on it before this returns.
3671 * 'in_port' allows the lookup to take place as if the in port had the value
3672 * 'in_port'. This is needed for resubmit action support. */
3674 rule_dpif_lookup_from_table(struct ofproto_dpif *ofproto, struct flow *flow,
3675 struct flow_wildcards *wc, bool take_ref,
3676 const struct dpif_flow_stats *stats,
3677 uint8_t *table_id, ofp_port_t in_port,
3678 bool may_packet_in, bool honor_table_miss)
3680 ovs_be16 old_tp_src = flow->tp_src, old_tp_dst = flow->tp_dst;
3681 ofp_port_t old_in_port = flow->in_port.ofp_port;
3682 enum ofputil_table_miss miss_config;
3683 struct rule_dpif *rule;
3686 /* We always unwildcard nw_frag (for IP), so they
3687 * need not be unwildcarded here. */
3688 if (flow->nw_frag & FLOW_NW_FRAG_ANY
3689 && ofproto->up.frag_handling != OFPC_FRAG_NX_MATCH) {
3690 if (ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
3691 /* We must pretend that transport ports are unavailable. */
3692 flow->tp_src = htons(0);
3693 flow->tp_dst = htons(0);
3695 /* Must be OFPC_FRAG_DROP (we don't have OFPC_FRAG_REASM).
3696 * Use the drop_frags_rule (which cannot disappear). */
3697 rule = ofproto->drop_frags_rule;
3699 rule_dpif_ref(rule);
3702 struct oftable *tbl = &ofproto->up.tables[*table_id];
3705 atomic_add_relaxed(&tbl->n_matched, stats->n_packets, &orig);
3711 /* Look up a flow with 'in_port' as the input port. Then restore the
3712 * original input port (otherwise OFPP_NORMAL and OFPP_IN_PORT will
3713 * have surprising behavior). */
3714 flow->in_port.ofp_port = in_port;
3716 /* Our current implementation depends on n_tables == N_TABLES, and
3717 * TBL_INTERNAL being the last table. */
3718 BUILD_ASSERT_DECL(N_TABLES == TBL_INTERNAL + 1);
3720 miss_config = OFPUTIL_TABLE_MISS_CONTINUE;
3722 for (next_id = *table_id;
3723 next_id < ofproto->up.n_tables;
3724 next_id++, next_id += (next_id == TBL_INTERNAL))
3726 *table_id = next_id;
3727 rule = rule_dpif_lookup_in_table(ofproto, next_id, flow, wc, take_ref);
3729 struct oftable *tbl = &ofproto->up.tables[next_id];
3732 atomic_add_relaxed(rule ? &tbl->n_matched : &tbl->n_missed,
3733 stats->n_packets, &orig);
3736 goto out; /* Match. */
3738 if (honor_table_miss) {
3739 miss_config = ofproto_table_get_miss_config(&ofproto->up,
3741 if (miss_config == OFPUTIL_TABLE_MISS_CONTINUE) {
3748 rule = ofproto->no_packet_in_rule;
3749 if (may_packet_in) {
3750 if (miss_config == OFPUTIL_TABLE_MISS_CONTINUE
3751 || miss_config == OFPUTIL_TABLE_MISS_CONTROLLER) {
3752 struct ofport_dpif *port;
3754 port = get_ofp_port(ofproto, old_in_port);
3756 VLOG_WARN_RL(&rl, "packet-in on unknown OpenFlow port %"PRIu16,
3758 } else if (!(port->up.pp.config & OFPUTIL_PC_NO_PACKET_IN)) {
3759 rule = ofproto->miss_rule;
3761 } else if (miss_config == OFPUTIL_TABLE_MISS_DEFAULT &&
3762 connmgr_wants_packet_in_on_miss(ofproto->up.connmgr)) {
3763 rule = ofproto->miss_rule;
3767 rule_dpif_ref(rule);
3770 /* Restore port numbers, as they may have been modified above. */
3771 flow->tp_src = old_tp_src;
3772 flow->tp_dst = old_tp_dst;
3773 /* Restore the old in port. */
3774 flow->in_port.ofp_port = old_in_port;
3780 complete_operation(struct rule_dpif *rule)
3781 OVS_REQUIRES(ofproto_mutex)
3783 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
3785 ofproto->backer->need_revalidate = REV_FLOW_TABLE;
3788 static struct rule_dpif *rule_dpif_cast(const struct rule *rule)
3790 return rule ? CONTAINER_OF(rule, struct rule_dpif, up) : NULL;
3793 static struct rule *
3796 struct rule_dpif *rule = xmalloc(sizeof *rule);
3801 rule_dealloc(struct rule *rule_)
3803 struct rule_dpif *rule = rule_dpif_cast(rule_);
3808 rule_construct(struct rule *rule_)
3809 OVS_NO_THREAD_SAFETY_ANALYSIS
3811 struct rule_dpif *rule = rule_dpif_cast(rule_);
3812 ovs_mutex_init_adaptive(&rule->stats_mutex);
3813 rule->stats.n_packets = 0;
3814 rule->stats.n_bytes = 0;
3815 rule->stats.used = rule->up.modified;
3816 rule->recirc_id = 0;
3822 rule_insert(struct rule *rule_)
3823 OVS_REQUIRES(ofproto_mutex)
3825 struct rule_dpif *rule = rule_dpif_cast(rule_);
3826 complete_operation(rule);
3831 rule_delete(struct rule *rule_)
3832 OVS_REQUIRES(ofproto_mutex)
3834 struct rule_dpif *rule = rule_dpif_cast(rule_);
3835 complete_operation(rule);
3839 rule_destruct(struct rule *rule_)
3841 struct rule_dpif *rule = rule_dpif_cast(rule_);
3843 ovs_mutex_destroy(&rule->stats_mutex);
3844 if (rule->recirc_id) {
3845 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
3847 ofproto_dpif_free_recirc_id(ofproto, rule->recirc_id);
3852 rule_get_stats(struct rule *rule_, uint64_t *packets, uint64_t *bytes,
3853 long long int *used)
3855 struct rule_dpif *rule = rule_dpif_cast(rule_);
3857 ovs_mutex_lock(&rule->stats_mutex);
3858 *packets = rule->stats.n_packets;
3859 *bytes = rule->stats.n_bytes;
3860 *used = rule->stats.used;
3861 ovs_mutex_unlock(&rule->stats_mutex);
3865 rule_dpif_execute(struct rule_dpif *rule, const struct flow *flow,
3866 struct ofpbuf *packet)
3868 struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
3870 ofproto_dpif_execute_actions(ofproto, flow, rule, NULL, 0, packet);
3874 rule_execute(struct rule *rule, const struct flow *flow,
3875 struct ofpbuf *packet)
3877 rule_dpif_execute(rule_dpif_cast(rule), flow, packet);
3878 ofpbuf_delete(packet);
3883 rule_modify_actions(struct rule *rule_, bool reset_counters)
3884 OVS_REQUIRES(ofproto_mutex)
3886 struct rule_dpif *rule = rule_dpif_cast(rule_);
3888 if (reset_counters) {
3889 ovs_mutex_lock(&rule->stats_mutex);
3890 rule->stats.n_packets = 0;
3891 rule->stats.n_bytes = 0;
3892 ovs_mutex_unlock(&rule->stats_mutex);
3895 complete_operation(rule);
3898 static struct group_dpif *group_dpif_cast(const struct ofgroup *group)
3900 return group ? CONTAINER_OF(group, struct group_dpif, up) : NULL;
3903 static struct ofgroup *
3906 struct group_dpif *group = xzalloc(sizeof *group);
3911 group_dealloc(struct ofgroup *group_)
3913 struct group_dpif *group = group_dpif_cast(group_);
3918 group_construct_stats(struct group_dpif *group)
3919 OVS_REQUIRES(group->stats_mutex)
3921 struct ofputil_bucket *bucket;
3922 const struct list *buckets;
3924 group->packet_count = 0;
3925 group->byte_count = 0;
3927 group_dpif_get_buckets(group, &buckets);
3928 LIST_FOR_EACH (bucket, list_node, buckets) {
3929 bucket->stats.packet_count = 0;
3930 bucket->stats.byte_count = 0;
3935 group_dpif_credit_stats(struct group_dpif *group,
3936 struct ofputil_bucket *bucket,
3937 const struct dpif_flow_stats *stats)
3939 ovs_mutex_lock(&group->stats_mutex);
3940 group->packet_count += stats->n_packets;
3941 group->byte_count += stats->n_bytes;
3943 bucket->stats.packet_count += stats->n_packets;
3944 bucket->stats.byte_count += stats->n_bytes;
3945 } else { /* Credit to all buckets */
3946 const struct list *buckets;
3948 group_dpif_get_buckets(group, &buckets);
3949 LIST_FOR_EACH (bucket, list_node, buckets) {
3950 bucket->stats.packet_count += stats->n_packets;
3951 bucket->stats.byte_count += stats->n_bytes;
3954 ovs_mutex_unlock(&group->stats_mutex);
3958 group_construct(struct ofgroup *group_)
3960 struct group_dpif *group = group_dpif_cast(group_);
3961 const struct ofputil_bucket *bucket;
3963 /* Prevent group chaining because our locking structure makes it hard to
3964 * implement deadlock-free. (See xlate_group_resource_check().) */
3965 LIST_FOR_EACH (bucket, list_node, &group->up.buckets) {
3966 const struct ofpact *a;
3968 OFPACT_FOR_EACH (a, bucket->ofpacts, bucket->ofpacts_len) {
3969 if (a->type == OFPACT_GROUP) {
3970 return OFPERR_OFPGMFC_CHAINING_UNSUPPORTED;
3975 ovs_mutex_init_adaptive(&group->stats_mutex);
3976 ovs_mutex_lock(&group->stats_mutex);
3977 group_construct_stats(group);
3978 ovs_mutex_unlock(&group->stats_mutex);
3983 group_destruct(struct ofgroup *group_)
3985 struct group_dpif *group = group_dpif_cast(group_);
3986 ovs_mutex_destroy(&group->stats_mutex);
3990 group_modify(struct ofgroup *group_)
3992 struct ofproto_dpif *ofproto = ofproto_dpif_cast(group_->ofproto);
3994 ofproto->backer->need_revalidate = REV_FLOW_TABLE;
4000 group_get_stats(const struct ofgroup *group_, struct ofputil_group_stats *ogs)
4002 struct group_dpif *group = group_dpif_cast(group_);
4003 struct ofputil_bucket *bucket;
4004 const struct list *buckets;
4005 struct bucket_counter *bucket_stats;
4007 ovs_mutex_lock(&group->stats_mutex);
4008 ogs->packet_count = group->packet_count;
4009 ogs->byte_count = group->byte_count;
4011 group_dpif_get_buckets(group, &buckets);
4012 bucket_stats = ogs->bucket_stats;
4013 LIST_FOR_EACH (bucket, list_node, buckets) {
4014 bucket_stats->packet_count = bucket->stats.packet_count;
4015 bucket_stats->byte_count = bucket->stats.byte_count;
4018 ovs_mutex_unlock(&group->stats_mutex);
4023 /* If the group exists, this function increments the groups's reference count.
4025 * Make sure to call group_dpif_unref() after no longer needing to maintain
4026 * a reference to the group. */
4028 group_dpif_lookup(struct ofproto_dpif *ofproto, uint32_t group_id,
4029 struct group_dpif **group)
4031 struct ofgroup *ofgroup;
4034 found = ofproto_group_lookup(&ofproto->up, group_id, &ofgroup);
4035 *group = found ? group_dpif_cast(ofgroup) : NULL;
4041 group_dpif_get_buckets(const struct group_dpif *group,
4042 const struct list **buckets)
4044 *buckets = &group->up.buckets;
4047 enum ofp11_group_type
4048 group_dpif_get_type(const struct group_dpif *group)
4050 return group->up.type;
4053 /* Sends 'packet' out 'ofport'.
4054 * May modify 'packet'.
4055 * Returns 0 if successful, otherwise a positive errno value. */
4057 ofproto_dpif_send_packet(const struct ofport_dpif *ofport, struct ofpbuf *packet)
4059 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
4062 error = xlate_send_packet(ofport, packet);
4064 ovs_mutex_lock(&ofproto->stats_mutex);
4065 ofproto->stats.tx_packets++;
4066 ofproto->stats.tx_bytes += ofpbuf_size(packet);
4067 ovs_mutex_unlock(&ofproto->stats_mutex);
4071 /* Return the version string of the datapath that backs up
4075 get_datapath_version(const struct ofproto *ofproto_)
4077 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4079 return ofproto->backer->dp_version_string;
4083 set_frag_handling(struct ofproto *ofproto_,
4084 enum ofp_config_flags frag_handling)
4086 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4087 if (frag_handling != OFPC_FRAG_REASM) {
4088 ofproto->backer->need_revalidate = REV_RECONFIGURE;
4096 packet_out(struct ofproto *ofproto_, struct ofpbuf *packet,
4097 const struct flow *flow,
4098 const struct ofpact *ofpacts, size_t ofpacts_len)
4100 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4102 ofproto_dpif_execute_actions(ofproto, flow, NULL, ofpacts,
4103 ofpacts_len, packet);
4110 set_netflow(struct ofproto *ofproto_,
4111 const struct netflow_options *netflow_options)
4113 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4115 if (netflow_options) {
4116 if (!ofproto->netflow) {
4117 ofproto->netflow = netflow_create();
4118 ofproto->backer->need_revalidate = REV_RECONFIGURE;
4120 return netflow_set_options(ofproto->netflow, netflow_options);
4121 } else if (ofproto->netflow) {
4122 ofproto->backer->need_revalidate = REV_RECONFIGURE;
4123 netflow_unref(ofproto->netflow);
4124 ofproto->netflow = NULL;
4131 get_netflow_ids(const struct ofproto *ofproto_,
4132 uint8_t *engine_type, uint8_t *engine_id)
4134 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
4136 dpif_get_netflow_ids(ofproto->backer->dpif, engine_type, engine_id);
4139 static struct ofproto_dpif *
4140 ofproto_dpif_lookup(const char *name)
4142 struct ofproto_dpif *ofproto;
4144 HMAP_FOR_EACH_WITH_HASH (ofproto, all_ofproto_dpifs_node,
4145 hash_string(name, 0), &all_ofproto_dpifs) {
4146 if (!strcmp(ofproto->up.name, name)) {
4154 ofproto_unixctl_fdb_flush(struct unixctl_conn *conn, int argc,
4155 const char *argv[], void *aux OVS_UNUSED)
4157 struct ofproto_dpif *ofproto;
4160 ofproto = ofproto_dpif_lookup(argv[1]);
4162 unixctl_command_reply_error(conn, "no such bridge");
4165 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
4166 mac_learning_flush(ofproto->ml);
4167 ovs_rwlock_unlock(&ofproto->ml->rwlock);
4169 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
4170 ovs_rwlock_wrlock(&ofproto->ml->rwlock);
4171 mac_learning_flush(ofproto->ml);
4172 ovs_rwlock_unlock(&ofproto->ml->rwlock);
4176 unixctl_command_reply(conn, "table successfully flushed");
4180 ofproto_unixctl_mcast_snooping_flush(struct unixctl_conn *conn, int argc,
4181 const char *argv[], void *aux OVS_UNUSED)
4183 struct ofproto_dpif *ofproto;
4186 ofproto = ofproto_dpif_lookup(argv[1]);
4188 unixctl_command_reply_error(conn, "no such bridge");
4192 if (!mcast_snooping_enabled(ofproto->ms)) {
4193 unixctl_command_reply_error(conn, "multicast snooping is disabled");
4196 mcast_snooping_mdb_flush(ofproto->ms);
4198 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
4199 if (!mcast_snooping_enabled(ofproto->ms)) {
4202 mcast_snooping_mdb_flush(ofproto->ms);
4206 unixctl_command_reply(conn, "table successfully flushed");
4209 static struct ofport_dpif *
4210 ofbundle_get_a_port(const struct ofbundle *bundle)
4212 return CONTAINER_OF(list_front(&bundle->ports), struct ofport_dpif,
4217 ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
4218 const char *argv[], void *aux OVS_UNUSED)
4220 struct ds ds = DS_EMPTY_INITIALIZER;
4221 const struct ofproto_dpif *ofproto;
4222 const struct mac_entry *e;
4224 ofproto = ofproto_dpif_lookup(argv[1]);
4226 unixctl_command_reply_error(conn, "no such bridge");
4230 ds_put_cstr(&ds, " port VLAN MAC Age\n");
4231 ovs_rwlock_rdlock(&ofproto->ml->rwlock);
4232 LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
4233 struct ofbundle *bundle = e->port.p;
4234 char name[OFP_MAX_PORT_NAME_LEN];
4236 ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
4238 ds_put_format(&ds, "%5s %4d "ETH_ADDR_FMT" %3d\n",
4239 name, e->vlan, ETH_ADDR_ARGS(e->mac),
4240 mac_entry_age(ofproto->ml, e));
4242 ovs_rwlock_unlock(&ofproto->ml->rwlock);
4243 unixctl_command_reply(conn, ds_cstr(&ds));
4248 ofproto_unixctl_mcast_snooping_show(struct unixctl_conn *conn,
4249 int argc OVS_UNUSED,
4251 void *aux OVS_UNUSED)
4253 struct ds ds = DS_EMPTY_INITIALIZER;
4254 const struct ofproto_dpif *ofproto;
4255 const struct ofbundle *bundle;
4256 const struct mcast_group *grp;
4257 struct mcast_group_bundle *b;
4258 struct mcast_mrouter_bundle *mrouter;
4260 ofproto = ofproto_dpif_lookup(argv[1]);
4262 unixctl_command_reply_error(conn, "no such bridge");
4266 if (!mcast_snooping_enabled(ofproto->ms)) {
4267 unixctl_command_reply_error(conn, "multicast snooping is disabled");
4271 ds_put_cstr(&ds, " port VLAN GROUP Age\n");
4272 ovs_rwlock_rdlock(&ofproto->ms->rwlock);
4273 LIST_FOR_EACH (grp, group_node, &ofproto->ms->group_lru) {
4274 LIST_FOR_EACH(b, bundle_node, &grp->bundle_lru) {
4275 char name[OFP_MAX_PORT_NAME_LEN];
4278 ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
4280 ds_put_format(&ds, "%5s %4d "IP_FMT" %3d\n",
4281 name, grp->vlan, IP_ARGS(grp->ip4),
4282 mcast_bundle_age(ofproto->ms, b));
4286 /* ports connected to multicast routers */
4287 LIST_FOR_EACH(mrouter, mrouter_node, &ofproto->ms->mrouter_lru) {
4288 char name[OFP_MAX_PORT_NAME_LEN];
4290 bundle = mrouter->port;
4291 ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
4293 ds_put_format(&ds, "%5s %4d querier %3d\n",
4294 name, mrouter->vlan,
4295 mcast_mrouter_age(ofproto->ms, mrouter));
4297 ovs_rwlock_unlock(&ofproto->ms->rwlock);
4298 unixctl_command_reply(conn, ds_cstr(&ds));
4303 struct xlate_out xout;
4304 struct xlate_in xin;
4305 const struct flow *key;
4307 struct flow_wildcards wc;
4312 trace_format_rule(struct ds *result, int level, const struct rule_dpif *rule)
4314 const struct rule_actions *actions;
4317 ds_put_char_multiple(result, '\t', level);
4319 ds_put_cstr(result, "No match\n");
4323 ovs_mutex_lock(&rule->up.mutex);
4324 cookie = rule->up.flow_cookie;
4325 ovs_mutex_unlock(&rule->up.mutex);
4327 ds_put_format(result, "Rule: table=%"PRIu8" cookie=%#"PRIx64" ",
4328 rule ? rule->up.table_id : 0, ntohll(cookie));
4329 cls_rule_format(&rule->up.cr, result);
4330 ds_put_char(result, '\n');
4332 actions = rule_dpif_get_actions(rule);
4334 ds_put_char_multiple(result, '\t', level);
4335 ds_put_cstr(result, "OpenFlow actions=");
4336 ofpacts_format(actions->ofpacts, actions->ofpacts_len, result);
4337 ds_put_char(result, '\n');
4341 trace_format_flow(struct ds *result, int level, const char *title,
4342 struct trace_ctx *trace)
4344 ds_put_char_multiple(result, '\t', level);
4345 ds_put_format(result, "%s: ", title);
4346 /* Do not report unchanged flows for resubmits. */
4347 if ((level > 0 && flow_equal(&trace->xin.flow, &trace->flow))
4348 || (level == 0 && flow_equal(&trace->xin.flow, trace->key))) {
4349 ds_put_cstr(result, "unchanged");
4351 flow_format(result, &trace->xin.flow);
4352 trace->flow = trace->xin.flow;
4354 ds_put_char(result, '\n');
4358 trace_format_regs(struct ds *result, int level, const char *title,
4359 struct trace_ctx *trace)
4363 ds_put_char_multiple(result, '\t', level);
4364 ds_put_format(result, "%s:", title);
4365 for (i = 0; i < FLOW_N_REGS; i++) {
4366 ds_put_format(result, " reg%"PRIuSIZE"=0x%"PRIx32, i, trace->flow.regs[i]);
4368 ds_put_char(result, '\n');
4372 trace_format_odp(struct ds *result, int level, const char *title,
4373 struct trace_ctx *trace)
4375 struct ofpbuf *odp_actions = trace->xout.odp_actions;
4377 ds_put_char_multiple(result, '\t', level);
4378 ds_put_format(result, "%s: ", title);
4379 format_odp_actions(result, ofpbuf_data(odp_actions),
4380 ofpbuf_size(odp_actions));
4381 ds_put_char(result, '\n');
4385 trace_format_megaflow(struct ds *result, int level, const char *title,
4386 struct trace_ctx *trace)
4390 ds_put_char_multiple(result, '\t', level);
4391 ds_put_format(result, "%s: ", title);
4392 flow_wildcards_or(&trace->wc, &trace->xout.wc, &trace->wc);
4393 match_init(&match, trace->key, &trace->wc);
4394 match_format(&match, result, OFP_DEFAULT_PRIORITY);
4395 ds_put_char(result, '\n');
4398 static void trace_report(struct xlate_in *xin, const char *s, int recurse);
4401 trace_resubmit(struct xlate_in *xin, struct rule_dpif *rule, int recurse)
4403 struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
4404 struct ds *result = trace->result;
4407 if (rule == xin->ofproto->miss_rule) {
4408 trace_report(xin, "No match, flow generates \"packet in\"s.",
4410 } else if (rule == xin->ofproto->no_packet_in_rule) {
4411 trace_report(xin, "No match, packets dropped because "
4412 "OFPPC_NO_PACKET_IN is set on in_port.", recurse);
4413 } else if (rule == xin->ofproto->drop_frags_rule) {
4414 trace_report(xin, "Packets dropped because they are IP "
4415 "fragments and the fragment handling mode is "
4416 "\"drop\".", recurse);
4420 ds_put_char(result, '\n');
4422 trace_format_flow(result, recurse, "Resubmitted flow", trace);
4423 trace_format_regs(result, recurse, "Resubmitted regs", trace);
4424 trace_format_odp(result, recurse, "Resubmitted odp", trace);
4425 trace_format_megaflow(result, recurse, "Resubmitted megaflow", trace);
4427 trace_format_rule(result, recurse, rule);
4431 trace_report(struct xlate_in *xin, const char *s, int recurse)
4433 struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
4434 struct ds *result = trace->result;
4436 ds_put_char_multiple(result, '\t', recurse);
4437 ds_put_cstr(result, s);
4438 ds_put_char(result, '\n');
4441 /* Parses the 'argc' elements of 'argv', ignoring argv[0]. The following
4442 * forms are supported:
4444 * - [dpname] odp_flow [-generate | packet]
4445 * - bridge br_flow [-generate | packet]
4447 * On success, initializes '*ofprotop' and 'flow' and returns NULL. On failure
4448 * returns a nonnull malloced error message. */
4449 static char * WARN_UNUSED_RESULT
4450 parse_flow_and_packet(int argc, const char *argv[],
4451 struct ofproto_dpif **ofprotop, struct flow *flow,
4452 struct ofpbuf **packetp)
4454 const struct dpif_backer *backer = NULL;
4455 const char *error = NULL;
4457 struct simap port_names = SIMAP_INITIALIZER(&port_names);
4458 struct ofpbuf *packet;
4459 struct ofpbuf odp_key;
4460 struct ofpbuf odp_mask;
4462 ofpbuf_init(&odp_key, 0);
4463 ofpbuf_init(&odp_mask, 0);
4465 /* Handle "-generate" or a hex string as the last argument. */
4466 if (!strcmp(argv[argc - 1], "-generate")) {
4467 packet = ofpbuf_new(0);
4470 error = eth_from_hex(argv[argc - 1], &packet);
4473 } else if (argc == 4) {
4474 /* The 3-argument form must end in "-generate' or a hex string. */
4480 /* odp_flow can have its in_port specified as a name instead of port no.
4481 * We do not yet know whether a given flow is a odp_flow or a br_flow.
4482 * But, to know whether a flow is odp_flow through odp_flow_from_string(),
4483 * we need to create a simap of name to port no. */
4485 const char *dp_type;
4486 if (!strncmp(argv[1], "ovs-", 4)) {
4487 dp_type = argv[1] + 4;
4491 backer = shash_find_data(&all_dpif_backers, dp_type);
4492 } else if (argc == 2) {
4493 struct shash_node *node;
4494 if (shash_count(&all_dpif_backers) == 1) {
4495 node = shash_first(&all_dpif_backers);
4496 backer = node->data;
4499 error = "Syntax error";
4502 if (backer && backer->dpif) {
4503 struct dpif_port dpif_port;
4504 struct dpif_port_dump port_dump;
4505 DPIF_PORT_FOR_EACH (&dpif_port, &port_dump, backer->dpif) {
4506 simap_put(&port_names, dpif_port.name,
4507 odp_to_u32(dpif_port.port_no));
4511 /* Parse the flow and determine whether a datapath or
4512 * bridge is specified. If function odp_flow_key_from_string()
4513 * returns 0, the flow is a odp_flow. If function
4514 * parse_ofp_exact_flow() returns NULL, the flow is a br_flow. */
4515 if (!odp_flow_from_string(argv[argc - 1], &port_names,
4516 &odp_key, &odp_mask)) {
4518 error = "Cannot find the datapath";
4522 if (odp_flow_key_to_flow(ofpbuf_data(&odp_key), ofpbuf_size(&odp_key),
4523 flow) == ODP_FIT_ERROR) {
4524 error = "Failed to parse flow key";
4528 *ofprotop = xlate_lookup_ofproto(backer, flow,
4529 &flow->in_port.ofp_port);
4530 if (*ofprotop == NULL) {
4531 error = "Invalid datapath flow";
4535 vsp_adjust_flow(*ofprotop, flow, NULL);
4538 char *err = parse_ofp_exact_flow(flow, NULL, argv[argc - 1], NULL);
4541 m_err = xasprintf("Bad flow syntax: %s", err);
4546 error = "Must specify bridge name";
4550 *ofprotop = ofproto_dpif_lookup(argv[1]);
4552 error = "Unknown bridge name";
4558 /* Generate a packet, if requested. */
4560 if (!ofpbuf_size(packet)) {
4561 flow_compose(packet, flow);
4563 struct pkt_metadata md = pkt_metadata_from_flow(flow);
4565 /* Use the metadata from the flow and the packet argument
4566 * to reconstruct the flow. */
4567 flow_extract(packet, &md, flow);
4572 if (error && !m_err) {
4573 m_err = xstrdup(error);
4576 ofpbuf_delete(packet);
4580 ofpbuf_uninit(&odp_key);
4581 ofpbuf_uninit(&odp_mask);
4582 simap_destroy(&port_names);
4587 ofproto_unixctl_trace(struct unixctl_conn *conn, int argc, const char *argv[],
4588 void *aux OVS_UNUSED)
4590 struct ofproto_dpif *ofproto;
4591 struct ofpbuf *packet;
4595 error = parse_flow_and_packet(argc, argv, &ofproto, &flow, &packet);
4600 ofproto_trace(ofproto, &flow, packet, NULL, 0, &result);
4601 unixctl_command_reply(conn, ds_cstr(&result));
4602 ds_destroy(&result);
4603 ofpbuf_delete(packet);
4605 unixctl_command_reply_error(conn, error);
4611 ofproto_unixctl_trace_actions(struct unixctl_conn *conn, int argc,
4612 const char *argv[], void *aux OVS_UNUSED)
4614 enum ofputil_protocol usable_protocols;
4615 struct ofproto_dpif *ofproto;
4616 bool enforce_consistency;
4617 struct ofpbuf ofpacts;
4618 struct ofpbuf *packet;
4623 /* Three kinds of error return values! */
4629 ofpbuf_init(&ofpacts, 0);
4631 /* Parse actions. */
4632 error = ofpacts_parse_actions(argv[--argc], &ofpacts, &usable_protocols);
4634 unixctl_command_reply_error(conn, error);
4639 /* OpenFlow 1.1 and later suggest that the switch enforces certain forms of
4640 * consistency between the flow and the actions. With -consistent, we
4641 * enforce consistency even for a flow supported in OpenFlow 1.0. */
4642 if (!strcmp(argv[1], "-consistent")) {
4643 enforce_consistency = true;
4647 enforce_consistency = false;
4650 error = parse_flow_and_packet(argc, argv, &ofproto, &flow, &packet);
4652 unixctl_command_reply_error(conn, error);
4657 /* Do the same checks as handle_packet_out() in ofproto.c.
4659 * We pass a 'table_id' of 0 to ofpacts_check(), which isn't
4660 * strictly correct because these actions aren't in any table, but it's OK
4661 * because it 'table_id' is used only to check goto_table instructions, but
4662 * packet-outs take a list of actions and therefore it can't include
4665 * We skip the "meter" check here because meter is an instruction, not an
4666 * action, and thus cannot appear in ofpacts. */
4667 in_port = ofp_to_u16(flow.in_port.ofp_port);
4668 if (in_port >= ofproto->up.max_ports && in_port < ofp_to_u16(OFPP_MAX)) {
4669 unixctl_command_reply_error(conn, "invalid in_port");
4672 if (enforce_consistency) {
4673 retval = ofpacts_check_consistency(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts),
4674 &flow, u16_to_ofp(ofproto->up.max_ports),
4675 0, 0, usable_protocols);
4677 retval = ofpacts_check(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &flow,
4678 u16_to_ofp(ofproto->up.max_ports), 0, 0,
4684 ds_put_format(&result, "Bad actions: %s", ofperr_to_string(retval));
4685 unixctl_command_reply_error(conn, ds_cstr(&result));
4689 ofproto_trace(ofproto, &flow, packet,
4690 ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &result);
4691 unixctl_command_reply(conn, ds_cstr(&result));
4694 ds_destroy(&result);
4695 ofpbuf_delete(packet);
4696 ofpbuf_uninit(&ofpacts);
4699 /* Implements a "trace" through 'ofproto''s flow table, appending a textual
4700 * description of the results to 'ds'.
4702 * The trace follows a packet with the specified 'flow' through the flow
4703 * table. 'packet' may be nonnull to trace an actual packet, with consequent
4704 * side effects (if it is nonnull then its flow must be 'flow').
4706 * If 'ofpacts' is nonnull then its 'ofpacts_len' bytes specify the actions to
4707 * trace, otherwise the actions are determined by a flow table lookup. */
4709 ofproto_trace(struct ofproto_dpif *ofproto, struct flow *flow,
4710 const struct ofpbuf *packet,
4711 const struct ofpact ofpacts[], size_t ofpacts_len,
4714 struct trace_ctx trace;
4716 ds_put_format(ds, "Bridge: %s\n", ofproto->up.name);
4717 ds_put_cstr(ds, "Flow: ");
4718 flow_format(ds, flow);
4719 ds_put_char(ds, '\n');
4721 flow_wildcards_init_catchall(&trace.wc);
4724 trace.key = flow; /* Original flow key, used for megaflow. */
4725 trace.flow = *flow; /* May be modified by actions. */
4726 xlate_in_init(&trace.xin, ofproto, flow, flow->in_port.ofp_port, NULL,
4727 ntohs(flow->tcp_flags), packet);
4728 trace.xin.ofpacts = ofpacts;
4729 trace.xin.ofpacts_len = ofpacts_len;
4730 trace.xin.resubmit_hook = trace_resubmit;
4731 trace.xin.report_hook = trace_report;
4733 xlate_actions(&trace.xin, &trace.xout);
4735 ds_put_char(ds, '\n');
4736 trace_format_flow(ds, 0, "Final flow", &trace);
4737 trace_format_megaflow(ds, 0, "Megaflow", &trace);
4739 ds_put_cstr(ds, "Datapath actions: ");
4740 format_odp_actions(ds, ofpbuf_data(trace.xout.odp_actions),
4741 ofpbuf_size(trace.xout.odp_actions));
4743 if (trace.xout.slow) {
4744 enum slow_path_reason slow;
4746 ds_put_cstr(ds, "\nThis flow is handled by the userspace "
4747 "slow path because it:");
4749 slow = trace.xout.slow;
4751 enum slow_path_reason bit = rightmost_1bit(slow);
4753 ds_put_format(ds, "\n\t- %s.",
4754 slow_path_reason_to_explanation(bit));
4760 xlate_out_uninit(&trace.xout);
4763 /* Store the current ofprotos in 'ofproto_shash'. Returns a sorted list
4764 * of the 'ofproto_shash' nodes. It is the responsibility of the caller
4765 * to destroy 'ofproto_shash' and free the returned value. */
4766 static const struct shash_node **
4767 get_ofprotos(struct shash *ofproto_shash)
4769 const struct ofproto_dpif *ofproto;
4771 HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
4772 char *name = xasprintf("%s@%s", ofproto->up.type, ofproto->up.name);
4773 shash_add_nocopy(ofproto_shash, name, ofproto);
4776 return shash_sort(ofproto_shash);
4780 ofproto_unixctl_dpif_dump_dps(struct unixctl_conn *conn, int argc OVS_UNUSED,
4781 const char *argv[] OVS_UNUSED,
4782 void *aux OVS_UNUSED)
4784 struct ds ds = DS_EMPTY_INITIALIZER;
4785 struct shash ofproto_shash;
4786 const struct shash_node **sorted_ofprotos;
4789 shash_init(&ofproto_shash);
4790 sorted_ofprotos = get_ofprotos(&ofproto_shash);
4791 for (i = 0; i < shash_count(&ofproto_shash); i++) {
4792 const struct shash_node *node = sorted_ofprotos[i];
4793 ds_put_format(&ds, "%s\n", node->name);
4796 shash_destroy(&ofproto_shash);
4797 free(sorted_ofprotos);
4799 unixctl_command_reply(conn, ds_cstr(&ds));
4804 dpif_show_backer(const struct dpif_backer *backer, struct ds *ds)
4806 const struct shash_node **ofprotos;
4807 struct dpif_dp_stats dp_stats;
4808 struct shash ofproto_shash;
4811 dpif_get_dp_stats(backer->dpif, &dp_stats);
4813 ds_put_format(ds, "%s: hit:%"PRIu64" missed:%"PRIu64"\n",
4814 dpif_name(backer->dpif), dp_stats.n_hit, dp_stats.n_missed);
4816 shash_init(&ofproto_shash);
4817 ofprotos = get_ofprotos(&ofproto_shash);
4818 for (i = 0; i < shash_count(&ofproto_shash); i++) {
4819 struct ofproto_dpif *ofproto = ofprotos[i]->data;
4820 const struct shash_node **ports;
4823 if (ofproto->backer != backer) {
4827 ds_put_format(ds, "\t%s:\n", ofproto->up.name);
4829 ports = shash_sort(&ofproto->up.port_by_name);
4830 for (j = 0; j < shash_count(&ofproto->up.port_by_name); j++) {
4831 const struct shash_node *node = ports[j];
4832 struct ofport *ofport = node->data;
4834 odp_port_t odp_port;
4836 ds_put_format(ds, "\t\t%s %u/", netdev_get_name(ofport->netdev),
4839 odp_port = ofp_port_to_odp_port(ofproto, ofport->ofp_port);
4840 if (odp_port != ODPP_NONE) {
4841 ds_put_format(ds, "%"PRIu32":", odp_port);
4843 ds_put_cstr(ds, "none:");
4846 ds_put_format(ds, " (%s", netdev_get_type(ofport->netdev));
4849 if (!netdev_get_config(ofport->netdev, &config)) {
4850 const struct smap_node **nodes;
4853 nodes = smap_sort(&config);
4854 for (i = 0; i < smap_count(&config); i++) {
4855 const struct smap_node *node = nodes[i];
4856 ds_put_format(ds, "%c %s=%s", i ? ',' : ':',
4857 node->key, node->value);
4861 smap_destroy(&config);
4863 ds_put_char(ds, ')');
4864 ds_put_char(ds, '\n');
4868 shash_destroy(&ofproto_shash);
4873 ofproto_unixctl_dpif_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
4874 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
4876 struct ds ds = DS_EMPTY_INITIALIZER;
4877 const struct shash_node **backers;
4880 backers = shash_sort(&all_dpif_backers);
4881 for (i = 0; i < shash_count(&all_dpif_backers); i++) {
4882 dpif_show_backer(backers[i]->data, &ds);
4886 unixctl_command_reply(conn, ds_cstr(&ds));
4891 ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn,
4892 int argc OVS_UNUSED, const char *argv[],
4893 void *aux OVS_UNUSED)
4895 const struct ofproto_dpif *ofproto;
4897 struct ds ds = DS_EMPTY_INITIALIZER;
4898 bool verbosity = false;
4900 struct dpif_port dpif_port;
4901 struct dpif_port_dump port_dump;
4902 struct hmap portno_names;
4904 struct dpif_flow_dump *flow_dump;
4905 struct dpif_flow_dump_thread *flow_dump_thread;
4909 ofproto = ofproto_dpif_lookup(argv[argc - 1]);
4911 unixctl_command_reply_error(conn, "no such bridge");
4915 if (argc > 2 && !strcmp(argv[1], "-m")) {
4919 hmap_init(&portno_names);
4920 DPIF_PORT_FOR_EACH (&dpif_port, &port_dump, ofproto->backer->dpif) {
4921 odp_portno_names_set(&portno_names, dpif_port.port_no, dpif_port.name);
4925 flow_dump = dpif_flow_dump_create(ofproto->backer->dpif);
4926 flow_dump_thread = dpif_flow_dump_thread_create(flow_dump);
4927 while (dpif_flow_dump_next(flow_dump_thread, &f, 1)) {
4930 if (odp_flow_key_to_flow(f.key, f.key_len, &flow) == ODP_FIT_ERROR
4931 || xlate_lookup_ofproto(ofproto->backer, &flow, NULL) != ofproto) {
4935 odp_flow_format(f.key, f.key_len, f.mask, f.mask_len,
4936 &portno_names, &ds, verbosity);
4937 ds_put_cstr(&ds, ", ");
4938 dpif_flow_stats_format(&f.stats, &ds);
4939 ds_put_cstr(&ds, ", actions:");
4940 format_odp_actions(&ds, f.actions, f.actions_len);
4941 ds_put_char(&ds, '\n');
4943 dpif_flow_dump_thread_destroy(flow_dump_thread);
4944 error = dpif_flow_dump_destroy(flow_dump);
4948 ds_put_format(&ds, "dpif/dump_flows failed: %s", ovs_strerror(errno));
4949 unixctl_command_reply_error(conn, ds_cstr(&ds));
4951 unixctl_command_reply(conn, ds_cstr(&ds));
4953 odp_portno_names_destroy(&portno_names);
4954 hmap_destroy(&portno_names);
4959 ofproto_dpif_unixctl_init(void)
4961 static bool registered;
4967 unixctl_command_register(
4969 "{[dp_name] odp_flow | bridge br_flow} [-generate|packet]",
4970 1, 3, ofproto_unixctl_trace, NULL);
4971 unixctl_command_register(
4972 "ofproto/trace-packet-out",
4973 "[-consistent] {[dp_name] odp_flow | bridge br_flow} [-generate|packet] actions",
4974 2, 6, ofproto_unixctl_trace_actions, NULL);
4975 unixctl_command_register("fdb/flush", "[bridge]", 0, 1,
4976 ofproto_unixctl_fdb_flush, NULL);
4977 unixctl_command_register("fdb/show", "bridge", 1, 1,
4978 ofproto_unixctl_fdb_show, NULL);
4979 unixctl_command_register("mdb/flush", "[bridge]", 0, 1,
4980 ofproto_unixctl_mcast_snooping_flush, NULL);
4981 unixctl_command_register("mdb/show", "bridge", 1, 1,
4982 ofproto_unixctl_mcast_snooping_show, NULL);
4983 unixctl_command_register("dpif/dump-dps", "", 0, 0,
4984 ofproto_unixctl_dpif_dump_dps, NULL);
4985 unixctl_command_register("dpif/show", "", 0, 0, ofproto_unixctl_dpif_show,
4987 unixctl_command_register("dpif/dump-flows", "[-m] bridge", 1, 2,
4988 ofproto_unixctl_dpif_dump_flows, NULL);
4991 /* Returns true if 'table' is the table used for internal rules,
4992 * false otherwise. */
4994 table_is_internal(uint8_t table_id)
4996 return table_id == TBL_INTERNAL;
4999 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
5001 * This is deprecated. It is only for compatibility with broken device drivers
5002 * in old versions of Linux that do not properly support VLANs when VLAN
5003 * devices are not used. When broken device drivers are no longer in
5004 * widespread use, we will delete these interfaces. */
5007 set_realdev(struct ofport *ofport_, ofp_port_t realdev_ofp_port, int vid)
5009 struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto);
5010 struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
5012 if (realdev_ofp_port == ofport->realdev_ofp_port
5013 && vid == ofport->vlandev_vid) {
5017 ofproto->backer->need_revalidate = REV_RECONFIGURE;
5019 if (ofport->realdev_ofp_port) {
5022 if (realdev_ofp_port && ofport->bundle) {
5023 /* vlandevs are enslaved to their realdevs, so they are not allowed to
5024 * themselves be part of a bundle. */
5025 bundle_set(ofport_->ofproto, ofport->bundle, NULL);
5028 ofport->realdev_ofp_port = realdev_ofp_port;
5029 ofport->vlandev_vid = vid;
5031 if (realdev_ofp_port) {
5032 vsp_add(ofport, realdev_ofp_port, vid);
5039 hash_realdev_vid(ofp_port_t realdev_ofp_port, int vid)
5041 return hash_2words(ofp_to_u16(realdev_ofp_port), vid);
5045 ofproto_has_vlan_splinters(const struct ofproto_dpif *ofproto)
5046 OVS_EXCLUDED(ofproto->vsp_mutex)
5048 /* hmap_is_empty is thread safe. */
5049 return !hmap_is_empty(&ofproto->realdev_vid_map);
5054 vsp_realdev_to_vlandev__(const struct ofproto_dpif *ofproto,
5055 ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
5056 OVS_REQUIRES(ofproto->vsp_mutex)
5058 if (!hmap_is_empty(&ofproto->realdev_vid_map)) {
5059 int vid = vlan_tci_to_vid(vlan_tci);
5060 const struct vlan_splinter *vsp;
5062 HMAP_FOR_EACH_WITH_HASH (vsp, realdev_vid_node,
5063 hash_realdev_vid(realdev_ofp_port, vid),
5064 &ofproto->realdev_vid_map) {
5065 if (vsp->realdev_ofp_port == realdev_ofp_port
5066 && vsp->vid == vid) {
5067 return vsp->vlandev_ofp_port;
5071 return realdev_ofp_port;
5074 /* Returns the OFP port number of the Linux VLAN device that corresponds to
5075 * 'vlan_tci' on the network device with port number 'realdev_ofp_port' in
5076 * 'struct ofport_dpif'. For example, given 'realdev_ofp_port' of eth0 and
5077 * 'vlan_tci' 9, it would return the port number of eth0.9.
5079 * Unless VLAN splinters are enabled for port 'realdev_ofp_port', this
5080 * function just returns its 'realdev_ofp_port' argument. */
5082 vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto,
5083 ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
5084 OVS_EXCLUDED(ofproto->vsp_mutex)
5088 /* hmap_is_empty is thread safe, see if we can return immediately. */
5089 if (hmap_is_empty(&ofproto->realdev_vid_map)) {
5090 return realdev_ofp_port;
5092 ovs_mutex_lock(&ofproto->vsp_mutex);
5093 ret = vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, vlan_tci);
5094 ovs_mutex_unlock(&ofproto->vsp_mutex);
5098 static struct vlan_splinter *
5099 vlandev_find(const struct ofproto_dpif *ofproto, ofp_port_t vlandev_ofp_port)
5101 struct vlan_splinter *vsp;
5103 HMAP_FOR_EACH_WITH_HASH (vsp, vlandev_node,
5104 hash_ofp_port(vlandev_ofp_port),
5105 &ofproto->vlandev_map) {
5106 if (vsp->vlandev_ofp_port == vlandev_ofp_port) {
5114 /* Returns the OpenFlow port number of the "real" device underlying the Linux
5115 * VLAN device with OpenFlow port number 'vlandev_ofp_port' and stores the
5116 * VLAN VID of the Linux VLAN device in '*vid'. For example, given
5117 * 'vlandev_ofp_port' of eth0.9, it would return the OpenFlow port number of
5118 * eth0 and store 9 in '*vid'.
5120 * Returns 0 and does not modify '*vid' if 'vlandev_ofp_port' is not a Linux
5121 * VLAN device. Unless VLAN splinters are enabled, this is what this function
5124 vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto,
5125 ofp_port_t vlandev_ofp_port, int *vid)
5126 OVS_REQUIRES(ofproto->vsp_mutex)
5128 if (!hmap_is_empty(&ofproto->vlandev_map)) {
5129 const struct vlan_splinter *vsp;
5131 vsp = vlandev_find(ofproto, vlandev_ofp_port);
5136 return vsp->realdev_ofp_port;
5142 /* Given 'flow', a flow representing a packet received on 'ofproto', checks
5143 * whether 'flow->in_port' represents a Linux VLAN device. If so, changes
5144 * 'flow->in_port' to the "real" device backing the VLAN device, sets
5145 * 'flow->vlan_tci' to the VLAN VID, and returns true. Optionally pushes the
5146 * appropriate VLAN on 'packet' if provided. Otherwise (which is always the
5147 * case unless VLAN splinters are enabled), returns false without making any
5150 vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow,
5151 struct ofpbuf *packet)
5152 OVS_EXCLUDED(ofproto->vsp_mutex)
5157 /* hmap_is_empty is thread safe. */
5158 if (hmap_is_empty(&ofproto->vlandev_map)) {
5162 ovs_mutex_lock(&ofproto->vsp_mutex);
5163 realdev = vsp_vlandev_to_realdev(ofproto, flow->in_port.ofp_port, &vid);
5164 ovs_mutex_unlock(&ofproto->vsp_mutex);
5169 /* Cause the flow to be processed as if it came in on the real device with
5170 * the VLAN device's VLAN ID. */
5171 flow->in_port.ofp_port = realdev;
5172 flow->vlan_tci = htons((vid & VLAN_VID_MASK) | VLAN_CFI);
5175 /* Make the packet resemble the flow, so that it gets sent to an
5176 * OpenFlow controller properly, so that it looks correct for sFlow,
5177 * and so that flow_extract() will get the correct vlan_tci if it is
5178 * called on 'packet'. */
5179 eth_push_vlan(packet, htons(ETH_TYPE_VLAN), flow->vlan_tci);
5186 vsp_remove(struct ofport_dpif *port)
5188 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
5189 struct vlan_splinter *vsp;
5191 ovs_mutex_lock(&ofproto->vsp_mutex);
5192 vsp = vlandev_find(ofproto, port->up.ofp_port);
5194 hmap_remove(&ofproto->vlandev_map, &vsp->vlandev_node);
5195 hmap_remove(&ofproto->realdev_vid_map, &vsp->realdev_vid_node);
5198 port->realdev_ofp_port = 0;
5200 VLOG_ERR("missing vlan device record");
5202 ovs_mutex_unlock(&ofproto->vsp_mutex);
5206 vsp_add(struct ofport_dpif *port, ofp_port_t realdev_ofp_port, int vid)
5208 struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
5210 ovs_mutex_lock(&ofproto->vsp_mutex);
5211 if (!vsp_vlandev_to_realdev(ofproto, port->up.ofp_port, NULL)
5212 && (vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, htons(vid))
5213 == realdev_ofp_port)) {
5214 struct vlan_splinter *vsp;
5216 vsp = xmalloc(sizeof *vsp);
5217 vsp->realdev_ofp_port = realdev_ofp_port;
5218 vsp->vlandev_ofp_port = port->up.ofp_port;
5221 port->realdev_ofp_port = realdev_ofp_port;
5223 hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node,
5224 hash_ofp_port(port->up.ofp_port));
5225 hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node,
5226 hash_realdev_vid(realdev_ofp_port, vid));
5228 VLOG_ERR("duplicate vlan device record");
5230 ovs_mutex_unlock(&ofproto->vsp_mutex);
5234 ofp_port_to_odp_port(const struct ofproto_dpif *ofproto, ofp_port_t ofp_port)
5236 const struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port);
5237 return ofport ? ofport->odp_port : ODPP_NONE;
5240 struct ofport_dpif *
5241 odp_port_to_ofport(const struct dpif_backer *backer, odp_port_t odp_port)
5243 struct ofport_dpif *port;
5245 ovs_rwlock_rdlock(&backer->odp_to_ofport_lock);
5246 HMAP_FOR_EACH_IN_BUCKET (port, odp_port_node, hash_odp_port(odp_port),
5247 &backer->odp_to_ofport_map) {
5248 if (port->odp_port == odp_port) {
5249 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
5254 ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
5259 odp_port_to_ofp_port(const struct ofproto_dpif *ofproto, odp_port_t odp_port)
5261 struct ofport_dpif *port;
5263 port = odp_port_to_ofport(ofproto->backer, odp_port);
5264 if (port && &ofproto->up == port->up.ofproto) {
5265 return port->up.ofp_port;
5272 ofproto_dpif_alloc_recirc_id(struct ofproto_dpif *ofproto)
5274 struct dpif_backer *backer = ofproto->backer;
5276 return recirc_id_alloc(backer->rid_pool);
5280 ofproto_dpif_free_recirc_id(struct ofproto_dpif *ofproto, uint32_t recirc_id)
5282 struct dpif_backer *backer = ofproto->backer;
5284 recirc_id_free(backer->rid_pool, recirc_id);
5288 ofproto_dpif_add_internal_flow(struct ofproto_dpif *ofproto,
5289 const struct match *match, int priority,
5290 uint16_t idle_timeout,
5291 const struct ofpbuf *ofpacts,
5292 struct rule **rulep)
5294 struct ofputil_flow_mod fm;
5295 struct rule_dpif *rule;
5299 fm.priority = priority;
5300 fm.new_cookie = htonll(0);
5301 fm.cookie = htonll(0);
5302 fm.cookie_mask = htonll(0);
5303 fm.modify_cookie = false;
5304 fm.table_id = TBL_INTERNAL;
5305 fm.command = OFPFC_ADD;
5306 fm.idle_timeout = idle_timeout;
5307 fm.hard_timeout = 0;
5311 fm.flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY;
5312 fm.ofpacts = ofpbuf_data(ofpacts);
5313 fm.ofpacts_len = ofpbuf_size(ofpacts);
5315 error = ofproto_flow_mod(&ofproto->up, &fm);
5317 VLOG_ERR_RL(&rl, "failed to add internal flow (%s)",
5318 ofperr_to_string(error));
5323 rule = rule_dpif_lookup_in_table(ofproto, TBL_INTERNAL, &fm.match.flow,
5324 &fm.match.wc, false);
5334 ofproto_dpif_delete_internal_flow(struct ofproto_dpif *ofproto,
5335 struct match *match, int priority)
5337 struct ofputil_flow_mod fm;
5341 fm.priority = priority;
5342 fm.new_cookie = htonll(0);
5343 fm.cookie = htonll(0);
5344 fm.cookie_mask = htonll(0);
5345 fm.modify_cookie = false;
5346 fm.table_id = TBL_INTERNAL;
5347 fm.flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY;
5348 fm.command = OFPFC_DELETE_STRICT;
5350 error = ofproto_flow_mod(&ofproto->up, &fm);
5352 VLOG_ERR_RL(&rl, "failed to delete internal flow (%s)",
5353 ofperr_to_string(error));
5360 const struct ofproto_class ofproto_dpif_class = {
5374 NULL, /* get_memory_usage. */
5375 type_get_memory_usage,
5393 port_is_lacp_current,
5394 port_get_lacp_stats,
5395 NULL, /* rule_choose_table */
5404 NULL, /* rule_premodify_actions */
5405 rule_modify_actions,
5421 get_stp_port_status,
5426 get_rstp_port_status,
5433 is_mirror_output_bundle,
5434 forward_bpdu_changed,
5435 set_mac_table_config,
5437 set_mcast_snooping_port,
5439 NULL, /* meter_get_features */
5440 NULL, /* meter_set */
5441 NULL, /* meter_get */
5442 NULL, /* meter_del */
5443 group_alloc, /* group_alloc */
5444 group_construct, /* group_construct */
5445 group_destruct, /* group_destruct */
5446 group_dealloc, /* group_dealloc */
5447 group_modify, /* group_modify */
5448 group_get_stats, /* group_get_stats */
5449 get_datapath_version, /* get_datapath_version */