2 * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "ofproto/ofproto-provider.h"
25 #include "byte-order.h"
30 #include "dynamic-string.h"
31 #include "fail-open.h"
35 #include "mac-learning.h"
36 #include "meta-flow.h"
37 #include "multipath.h"
38 #include "netdev-vport.h"
45 #include "ofp-actions.h"
46 #include "ofp-parse.h"
47 #include "ofp-print.h"
48 #include "ofproto-dpif-governor.h"
49 #include "ofproto-dpif-sflow.h"
50 #include "poll-loop.h"
55 #include "unaligned.h"
57 #include "vlan-bitmap.h"
60 VLOG_DEFINE_THIS_MODULE(ofproto_dpif
);
62 COVERAGE_DEFINE(ofproto_dpif_expired
);
63 COVERAGE_DEFINE(ofproto_dpif_xlate
);
64 COVERAGE_DEFINE(facet_changed_rule
);
65 COVERAGE_DEFINE(facet_revalidate
);
66 COVERAGE_DEFINE(facet_unexpected
);
67 COVERAGE_DEFINE(facet_suppress
);
69 /* Maximum depth of flow table recursion (due to resubmit actions) in a
70 * flow translation. */
71 #define MAX_RESUBMIT_RECURSION 64
73 /* Number of implemented OpenFlow tables. */
74 enum { N_TABLES
= 255 };
75 enum { TBL_INTERNAL
= N_TABLES
- 1 }; /* Used for internal hidden rules. */
76 BUILD_ASSERT_DECL(N_TABLES
>= 2 && N_TABLES
<= 255);
88 * - Do include packets and bytes from facets that have been deleted or
89 * whose own statistics have been folded into the rule.
91 * - Do include packets and bytes sent "by hand" that were accounted to
92 * the rule without any facet being involved (this is a rare corner
93 * case in rule_execute()).
95 * - Do not include packet or bytes that can be obtained from any facet's
96 * packet_count or byte_count member or that can be obtained from the
97 * datapath by, e.g., dpif_flow_get() for any subfacet.
99 uint64_t packet_count
; /* Number of packets received. */
100 uint64_t byte_count
; /* Number of bytes received. */
102 tag_type tag
; /* Caches rule_calculate_tag() result. */
104 struct list facets
; /* List of "struct facet"s. */
107 static struct rule_dpif
*rule_dpif_cast(const struct rule
*rule
)
109 return rule
? CONTAINER_OF(rule
, struct rule_dpif
, up
) : NULL
;
112 static struct rule_dpif
*rule_dpif_lookup(struct ofproto_dpif
*,
113 const struct flow
*);
114 static struct rule_dpif
*rule_dpif_lookup__(struct ofproto_dpif
*,
117 static struct rule_dpif
*rule_dpif_miss_rule(struct ofproto_dpif
*ofproto
,
118 const struct flow
*flow
);
120 static void rule_credit_stats(struct rule_dpif
*,
121 const struct dpif_flow_stats
*);
122 static void flow_push_stats(struct facet
*, const struct dpif_flow_stats
*);
123 static tag_type
rule_calculate_tag(const struct flow
*,
124 const struct minimask
*, uint32_t basis
);
125 static void rule_invalidate(const struct rule_dpif
*);
127 #define MAX_MIRRORS 32
128 typedef uint32_t mirror_mask_t
;
129 #define MIRROR_MASK_C(X) UINT32_C(X)
130 BUILD_ASSERT_DECL(sizeof(mirror_mask_t
) * CHAR_BIT
>= MAX_MIRRORS
);
132 struct ofproto_dpif
*ofproto
; /* Owning ofproto. */
133 size_t idx
; /* In ofproto's "mirrors" array. */
134 void *aux
; /* Key supplied by ofproto's client. */
135 char *name
; /* Identifier for log messages. */
137 /* Selection criteria. */
138 struct hmapx srcs
; /* Contains "struct ofbundle *"s. */
139 struct hmapx dsts
; /* Contains "struct ofbundle *"s. */
140 unsigned long *vlans
; /* Bitmap of chosen VLANs, NULL selects all. */
142 /* Output (exactly one of out == NULL and out_vlan == -1 is true). */
143 struct ofbundle
*out
; /* Output port or NULL. */
144 int out_vlan
; /* Output VLAN or -1. */
145 mirror_mask_t dup_mirrors
; /* Bitmap of mirrors with the same output. */
148 int64_t packet_count
; /* Number of packets sent. */
149 int64_t byte_count
; /* Number of bytes sent. */
152 static void mirror_destroy(struct ofmirror
*);
153 static void update_mirror_stats(struct ofproto_dpif
*ofproto
,
154 mirror_mask_t mirrors
,
155 uint64_t packets
, uint64_t bytes
);
158 struct hmap_node hmap_node
; /* In struct ofproto's "bundles" hmap. */
159 struct ofproto_dpif
*ofproto
; /* Owning ofproto. */
160 void *aux
; /* Key supplied by ofproto's client. */
161 char *name
; /* Identifier for log messages. */
164 struct list ports
; /* Contains "struct ofport"s. */
165 enum port_vlan_mode vlan_mode
; /* VLAN mode */
166 int vlan
; /* -1=trunk port, else a 12-bit VLAN ID. */
167 unsigned long *trunks
; /* Bitmap of trunked VLANs, if 'vlan' == -1.
168 * NULL if all VLANs are trunked. */
169 struct lacp
*lacp
; /* LACP if LACP is enabled, otherwise NULL. */
170 struct bond
*bond
; /* Nonnull iff more than one port. */
171 bool use_priority_tags
; /* Use 802.1p tag for frames in VLAN 0? */
174 bool floodable
; /* True if no port has OFPUTIL_PC_NO_FLOOD set. */
176 /* Port mirroring info. */
177 mirror_mask_t src_mirrors
; /* Mirrors triggered when packet received. */
178 mirror_mask_t dst_mirrors
; /* Mirrors triggered when packet sent. */
179 mirror_mask_t mirror_out
; /* Mirrors that output to this bundle. */
182 static void bundle_remove(struct ofport
*);
183 static void bundle_update(struct ofbundle
*);
184 static void bundle_destroy(struct ofbundle
*);
185 static void bundle_del_port(struct ofport_dpif
*);
186 static void bundle_run(struct ofbundle
*);
187 static void bundle_wait(struct ofbundle
*);
188 static struct ofbundle
*lookup_input_bundle(const struct ofproto_dpif
*,
189 uint16_t in_port
, bool warn
,
190 struct ofport_dpif
**in_ofportp
);
192 /* A controller may use OFPP_NONE as the ingress port to indicate that
193 * it did not arrive on a "real" port. 'ofpp_none_bundle' exists for
194 * when an input bundle is needed for validation (e.g., mirroring or
195 * OFPP_NORMAL processing). It is not connected to an 'ofproto' or have
196 * any 'port' structs, so care must be taken when dealing with it. */
197 static struct ofbundle ofpp_none_bundle
= {
199 .vlan_mode
= PORT_VLAN_TRUNK
202 static void stp_run(struct ofproto_dpif
*ofproto
);
203 static void stp_wait(struct ofproto_dpif
*ofproto
);
204 static int set_stp_port(struct ofport
*,
205 const struct ofproto_port_stp_settings
*);
207 static bool ofbundle_includes_vlan(const struct ofbundle
*, uint16_t vlan
);
209 struct action_xlate_ctx
{
210 /* action_xlate_ctx_init() initializes these members. */
213 struct ofproto_dpif
*ofproto
;
215 /* Flow to which the OpenFlow actions apply. xlate_actions() will modify
216 * this flow when actions change header fields. */
219 /* stack for the push and pop actions.
220 * Each stack element is of the type "union mf_subvalue". */
222 union mf_subvalue init_stack
[1024 / sizeof(union mf_subvalue
)];
224 /* The packet corresponding to 'flow', or a null pointer if we are
225 * revalidating without a packet to refer to. */
226 const struct ofpbuf
*packet
;
228 /* Should OFPP_NORMAL update the MAC learning table? Should "learn"
229 * actions update the flow table?
231 * We want to update these tables if we are actually processing a packet,
232 * or if we are accounting for packets that the datapath has processed, but
233 * not if we are just revalidating. */
236 /* The rule that we are currently translating, or NULL. */
237 struct rule_dpif
*rule
;
239 /* Union of the set of TCP flags seen so far in this flow. (Used only by
240 * NXAST_FIN_TIMEOUT. Set to zero to avoid updating updating rules'
244 /* If nonnull, flow translation calls this function just before executing a
245 * resubmit or OFPP_TABLE action. In addition, disables logging of traces
246 * when the recursion depth is exceeded.
248 * 'rule' is the rule being submitted into. It will be null if the
249 * resubmit or OFPP_TABLE action didn't find a matching rule.
251 * This is normally null so the client has to set it manually after
252 * calling action_xlate_ctx_init(). */
253 void (*resubmit_hook
)(struct action_xlate_ctx
*, struct rule_dpif
*rule
);
255 /* If nonnull, flow translation calls this function to report some
256 * significant decision, e.g. to explain why OFPP_NORMAL translation
257 * dropped a packet. */
258 void (*report_hook
)(struct action_xlate_ctx
*, const char *s
);
260 /* If nonnull, flow translation credits the specified statistics to each
261 * rule reached through a resubmit or OFPP_TABLE action.
263 * This is normally null so the client has to set it manually after
264 * calling action_xlate_ctx_init(). */
265 const struct dpif_flow_stats
*resubmit_stats
;
267 /* xlate_actions() initializes and uses these members. The client might want
268 * to look at them after it returns. */
270 struct ofpbuf
*odp_actions
; /* Datapath actions. */
271 tag_type tags
; /* Tags associated with actions. */
272 enum slow_path_reason slow
; /* 0 if fast path may be used. */
273 bool has_learn
; /* Actions include NXAST_LEARN? */
274 bool has_normal
; /* Actions output to OFPP_NORMAL? */
275 bool has_fin_timeout
; /* Actions include NXAST_FIN_TIMEOUT? */
276 uint16_t nf_output_iface
; /* Output interface index for NetFlow. */
277 mirror_mask_t mirrors
; /* Bitmap of associated mirrors. */
279 /* xlate_actions() initializes and uses these members, but the client has no
280 * reason to look at them. */
282 int recurse
; /* Recursion level, via xlate_table_action. */
283 bool max_resubmit_trigger
; /* Recursed too deeply during translation. */
284 struct flow base_flow
; /* Flow at the last commit. */
285 uint32_t orig_skb_priority
; /* Priority when packet arrived. */
286 uint8_t table_id
; /* OpenFlow table ID where flow was found. */
287 uint32_t sflow_n_outputs
; /* Number of output ports. */
288 uint32_t sflow_odp_port
; /* Output port for composing sFlow action. */
289 uint16_t user_cookie_offset
;/* Used for user_action_cookie fixup. */
290 bool exit
; /* No further actions should be processed. */
293 /* Initial values of fields of the packet that may be changed during
294 * flow processing and needed later. */
295 struct initial_vals
{
296 /* This is the value of vlan_tci in the packet as actually received from
297 * dpif. This is the same as the facet's flow.vlan_tci unless the packet
298 * was received via a VLAN splinter. In that case, this value is 0
299 * (because the packet as actually received from the dpif had no 802.1Q
300 * tag) but the facet's flow.vlan_tci is set to the VLAN that the splinter
303 * This member should be removed when the VLAN splinters feature is no
307 /* If received on a tunnel, the IP TOS value of the tunnel. */
308 uint8_t tunnel_ip_tos
;
311 static void action_xlate_ctx_init(struct action_xlate_ctx
*,
312 struct ofproto_dpif
*, const struct flow
*,
313 const struct initial_vals
*initial_vals
,
315 uint8_t tcp_flags
, const struct ofpbuf
*);
316 static void xlate_actions(struct action_xlate_ctx
*,
317 const struct ofpact
*ofpacts
, size_t ofpacts_len
,
318 struct ofpbuf
*odp_actions
);
319 static void xlate_actions_for_side_effects(struct action_xlate_ctx
*,
320 const struct ofpact
*ofpacts
,
322 static void xlate_table_action(struct action_xlate_ctx
*, uint16_t in_port
,
323 uint8_t table_id
, bool may_packet_in
);
325 static size_t put_userspace_action(const struct ofproto_dpif
*,
326 struct ofpbuf
*odp_actions
,
328 const union user_action_cookie
*);
330 static void compose_slow_path(const struct ofproto_dpif
*, const struct flow
*,
331 enum slow_path_reason
,
332 uint64_t *stub
, size_t stub_size
,
333 const struct nlattr
**actionsp
,
334 size_t *actions_lenp
);
336 static void xlate_report(struct action_xlate_ctx
*ctx
, const char *s
);
338 /* A subfacet (see "struct subfacet" below) has three possible installation
341 * - SF_NOT_INSTALLED: Not installed in the datapath. This will only be the
342 * case just after the subfacet is created, just before the subfacet is
343 * destroyed, or if the datapath returns an error when we try to install a
346 * - SF_FAST_PATH: The subfacet's actions are installed in the datapath.
348 * - SF_SLOW_PATH: An action that sends every packet for the subfacet through
349 * ofproto_dpif is installed in the datapath.
352 SF_NOT_INSTALLED
, /* No datapath flow for this subfacet. */
353 SF_FAST_PATH
, /* Full actions are installed. */
354 SF_SLOW_PATH
, /* Send-to-userspace action is installed. */
357 static const char *subfacet_path_to_string(enum subfacet_path
);
359 /* A dpif flow and actions associated with a facet.
361 * See also the large comment on struct facet. */
364 struct hmap_node hmap_node
; /* In struct ofproto_dpif 'subfacets' list. */
365 struct list list_node
; /* In struct facet's 'facets' list. */
366 struct facet
*facet
; /* Owning facet. */
368 enum odp_key_fitness key_fitness
;
372 long long int used
; /* Time last used; time created if not used. */
374 uint64_t dp_packet_count
; /* Last known packet count in the datapath. */
375 uint64_t dp_byte_count
; /* Last known byte count in the datapath. */
379 * These should be essentially identical for every subfacet in a facet, but
380 * may differ in trivial ways due to VLAN splinters. */
381 size_t actions_len
; /* Number of bytes in actions[]. */
382 struct nlattr
*actions
; /* Datapath actions. */
384 enum slow_path_reason slow
; /* 0 if fast path may be used. */
385 enum subfacet_path path
; /* Installed in datapath? */
387 /* Initial values of the packet that may be needed later. */
388 struct initial_vals initial_vals
;
390 /* Datapath port the packet arrived on. This is needed to remove
391 * flows for ports that are no longer part of the bridge. Since the
392 * flow definition only has the OpenFlow port number and the port is
393 * no longer part of the bridge, we can't determine the datapath port
394 * number needed to delete the flow from the datapath. */
395 uint32_t odp_in_port
;
398 #define SUBFACET_DESTROY_MAX_BATCH 50
400 static struct subfacet
*subfacet_create(struct facet
*, struct flow_miss
*miss
,
402 static struct subfacet
*subfacet_find(struct ofproto_dpif
*,
403 const struct nlattr
*key
, size_t key_len
,
405 static void subfacet_destroy(struct subfacet
*);
406 static void subfacet_destroy__(struct subfacet
*);
407 static void subfacet_destroy_batch(struct ofproto_dpif
*,
408 struct subfacet
**, int n
);
409 static void subfacet_reset_dp_stats(struct subfacet
*,
410 struct dpif_flow_stats
*);
411 static void subfacet_update_time(struct subfacet
*, long long int used
);
412 static void subfacet_update_stats(struct subfacet
*,
413 const struct dpif_flow_stats
*);
414 static void subfacet_make_actions(struct subfacet
*,
415 const struct ofpbuf
*packet
,
416 struct ofpbuf
*odp_actions
);
417 static int subfacet_install(struct subfacet
*,
418 const struct nlattr
*actions
, size_t actions_len
,
419 struct dpif_flow_stats
*, enum slow_path_reason
);
420 static void subfacet_uninstall(struct subfacet
*);
422 static enum subfacet_path
subfacet_want_path(enum slow_path_reason
);
424 /* An exact-match instantiation of an OpenFlow flow.
426 * A facet associates a "struct flow", which represents the Open vSwitch
427 * userspace idea of an exact-match flow, with one or more subfacets. Each
428 * subfacet tracks the datapath's idea of the exact-match flow equivalent to
429 * the facet. When the kernel module (or other dpif implementation) and Open
430 * vSwitch userspace agree on the definition of a flow key, there is exactly
431 * one subfacet per facet. If the dpif implementation supports more-specific
432 * flow matching than userspace, however, a facet can have more than one
433 * subfacet, each of which corresponds to some distinction in flow that
434 * userspace simply doesn't understand.
436 * Flow expiration works in terms of subfacets, so a facet must have at least
437 * one subfacet or it will never expire, leaking memory. */
440 struct hmap_node hmap_node
; /* In owning ofproto's 'facets' hmap. */
441 struct list list_node
; /* In owning rule's 'facets' list. */
442 struct rule_dpif
*rule
; /* Owning rule. */
445 struct list subfacets
;
446 long long int used
; /* Time last used; time created if not used. */
453 * - Do include packets and bytes sent "by hand", e.g. with
456 * - Do include packets and bytes that were obtained from the datapath
457 * when a subfacet's statistics were reset (e.g. dpif_flow_put() with
458 * DPIF_FP_ZERO_STATS).
460 * - Do not include packets or bytes that can be obtained from the
461 * datapath for any existing subfacet.
463 uint64_t packet_count
; /* Number of packets received. */
464 uint64_t byte_count
; /* Number of bytes received. */
466 /* Resubmit statistics. */
467 uint64_t prev_packet_count
; /* Number of packets from last stats push. */
468 uint64_t prev_byte_count
; /* Number of bytes from last stats push. */
469 long long int prev_used
; /* Used time from last stats push. */
472 uint64_t accounted_bytes
; /* Bytes processed by facet_account(). */
473 struct netflow_flow nf_flow
; /* Per-flow NetFlow tracking data. */
474 uint8_t tcp_flags
; /* TCP flags seen for this 'rule'. */
476 /* Properties of datapath actions.
478 * Every subfacet has its own actions because actions can differ slightly
479 * between splintered and non-splintered subfacets due to the VLAN tag
480 * being initially different (present vs. absent). All of them have these
481 * properties in common so we just store one copy of them here. */
482 bool has_learn
; /* Actions include NXAST_LEARN? */
483 bool has_normal
; /* Actions output to OFPP_NORMAL? */
484 bool has_fin_timeout
; /* Actions include NXAST_FIN_TIMEOUT? */
485 tag_type tags
; /* Tags that would require revalidation. */
486 mirror_mask_t mirrors
; /* Bitmap of dependent mirrors. */
488 /* Storage for a single subfacet, to reduce malloc() time and space
489 * overhead. (A facet always has at least one subfacet and in the common
490 * case has exactly one subfacet.) */
491 struct subfacet one_subfacet
;
494 static struct facet
*facet_create(struct rule_dpif
*,
495 const struct flow
*, uint32_t hash
);
496 static void facet_remove(struct facet
*);
497 static void facet_free(struct facet
*);
499 static struct facet
*facet_find(struct ofproto_dpif
*,
500 const struct flow
*, uint32_t hash
);
501 static struct facet
*facet_lookup_valid(struct ofproto_dpif
*,
502 const struct flow
*, uint32_t hash
);
503 static void facet_revalidate(struct facet
*);
504 static bool facet_check_consistency(struct facet
*);
506 static void facet_flush_stats(struct facet
*);
508 static void facet_update_time(struct facet
*, long long int used
);
509 static void facet_reset_counters(struct facet
*);
510 static void facet_push_stats(struct facet
*);
511 static void facet_learn(struct facet
*);
512 static void facet_account(struct facet
*);
514 static bool facet_is_controller_flow(struct facet
*);
517 struct hmap_node odp_port_node
; /* In dpif_backer's "odp_to_ofport_map". */
521 struct ofbundle
*bundle
; /* Bundle that contains this port, if any. */
522 struct list bundle_node
; /* In struct ofbundle's "ports" list. */
523 struct cfm
*cfm
; /* Connectivity Fault Management, if any. */
524 tag_type tag
; /* Tag associated with this port. */
525 bool may_enable
; /* May be enabled in bonds. */
526 long long int carrier_seq
; /* Carrier status changes. */
527 struct tnl_port
*tnl_port
; /* Tunnel handle, or null. */
530 struct stp_port
*stp_port
; /* Spanning Tree Protocol, if any. */
531 enum stp_state stp_state
; /* Always STP_DISABLED if STP not in use. */
532 long long int stp_state_entered
;
534 struct hmap priorities
; /* Map of attached 'priority_to_dscp's. */
536 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
538 * This is deprecated. It is only for compatibility with broken device
539 * drivers in old versions of Linux that do not properly support VLANs when
540 * VLAN devices are not used. When broken device drivers are no longer in
541 * widespread use, we will delete these interfaces. */
542 uint16_t realdev_ofp_port
;
546 /* Node in 'ofport_dpif''s 'priorities' map. Used to maintain a map from
547 * 'priority' (the datapath's term for QoS queue) to the dscp bits which all
548 * traffic egressing the 'ofport' with that priority should be marked with. */
549 struct priority_to_dscp
{
550 struct hmap_node hmap_node
; /* Node in 'ofport_dpif''s 'priorities' map. */
551 uint32_t priority
; /* Priority of this queue (see struct flow). */
553 uint8_t dscp
; /* DSCP bits to mark outgoing traffic with. */
556 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
558 * This is deprecated. It is only for compatibility with broken device drivers
559 * in old versions of Linux that do not properly support VLANs when VLAN
560 * devices are not used. When broken device drivers are no longer in
561 * widespread use, we will delete these interfaces. */
562 struct vlan_splinter
{
563 struct hmap_node realdev_vid_node
;
564 struct hmap_node vlandev_node
;
565 uint16_t realdev_ofp_port
;
566 uint16_t vlandev_ofp_port
;
570 static uint32_t vsp_realdev_to_vlandev(const struct ofproto_dpif
*,
571 uint32_t realdev
, ovs_be16 vlan_tci
);
572 static bool vsp_adjust_flow(const struct ofproto_dpif
*, struct flow
*);
573 static void vsp_remove(struct ofport_dpif
*);
574 static void vsp_add(struct ofport_dpif
*, uint16_t realdev_ofp_port
, int vid
);
576 static uint32_t ofp_port_to_odp_port(const struct ofproto_dpif
*,
578 static uint16_t odp_port_to_ofp_port(const struct ofproto_dpif
*,
581 static struct ofport_dpif
*
582 ofport_dpif_cast(const struct ofport
*ofport
)
584 ovs_assert(ofport
->ofproto
->ofproto_class
== &ofproto_dpif_class
);
585 return ofport
? CONTAINER_OF(ofport
, struct ofport_dpif
, up
) : NULL
;
588 static void port_run(struct ofport_dpif
*);
589 static void port_run_fast(struct ofport_dpif
*);
590 static void port_wait(struct ofport_dpif
*);
591 static int set_cfm(struct ofport
*, const struct cfm_settings
*);
592 static void ofport_clear_priorities(struct ofport_dpif
*);
594 struct dpif_completion
{
595 struct list list_node
;
596 struct ofoperation
*op
;
599 /* Extra information about a classifier table.
600 * Currently used just for optimized flow revalidation. */
602 /* If either of these is nonnull, then this table has a form that allows
603 * flows to be tagged to avoid revalidating most flows for the most common
604 * kinds of flow table changes. */
605 struct cls_table
*catchall_table
; /* Table that wildcards all fields. */
606 struct cls_table
*other_table
; /* Table with any other wildcard set. */
607 uint32_t basis
; /* Keeps each table's tags separate. */
610 /* Reasons that we might need to revalidate every facet, and corresponding
613 * A value of 0 means that there is no need to revalidate.
615 * It would be nice to have some cleaner way to integrate with coverage
616 * counters, but with only a few reasons I guess this is good enough for
618 enum revalidate_reason
{
619 REV_RECONFIGURE
= 1, /* Switch configuration changed. */
620 REV_STP
, /* Spanning tree protocol port status change. */
621 REV_PORT_TOGGLED
, /* Port enabled or disabled by CFM, LACP, ...*/
622 REV_FLOW_TABLE
, /* Flow table changed. */
623 REV_INCONSISTENCY
/* Facet self-check failed. */
625 COVERAGE_DEFINE(rev_reconfigure
);
626 COVERAGE_DEFINE(rev_stp
);
627 COVERAGE_DEFINE(rev_port_toggled
);
628 COVERAGE_DEFINE(rev_flow_table
);
629 COVERAGE_DEFINE(rev_inconsistency
);
631 /* Drop keys are odp flow keys which have drop flows installed in the kernel.
632 * These are datapath flows which have no associated ofproto, if they did we
633 * would use facets. */
635 struct hmap_node hmap_node
;
640 /* All datapaths of a given type share a single dpif backer instance. */
645 struct timer next_expiration
;
646 struct hmap odp_to_ofport_map
; /* ODP port to ofport mapping. */
648 struct simap tnl_backers
; /* Set of dpif ports backing tunnels. */
650 /* Facet revalidation flags applying to facets which use this backer. */
651 enum revalidate_reason need_revalidate
; /* Revalidate every facet. */
652 struct tag_set revalidate_set
; /* Revalidate only matching facets. */
654 struct hmap drop_keys
; /* Set of dropped odp keys. */
657 /* All existing ofproto_backer instances, indexed by ofproto->up.type. */
658 static struct shash all_dpif_backers
= SHASH_INITIALIZER(&all_dpif_backers
);
660 static void drop_key_clear(struct dpif_backer
*);
661 static struct ofport_dpif
*
662 odp_port_to_ofport(const struct dpif_backer
*, uint32_t odp_port
);
664 struct ofproto_dpif
{
665 struct hmap_node all_ofproto_dpifs_node
; /* In 'all_ofproto_dpifs'. */
667 struct dpif_backer
*backer
;
669 /* Special OpenFlow rules. */
670 struct rule_dpif
*miss_rule
; /* Sends flow table misses to controller. */
671 struct rule_dpif
*no_packet_in_rule
; /* Drops flow table misses. */
677 struct netflow
*netflow
;
678 struct dpif_sflow
*sflow
;
679 struct hmap bundles
; /* Contains "struct ofbundle"s. */
680 struct mac_learning
*ml
;
681 struct ofmirror
*mirrors
[MAX_MIRRORS
];
683 bool has_bonded_bundles
;
687 struct hmap subfacets
;
688 struct governor
*governor
;
691 struct table_dpif tables
[N_TABLES
];
693 /* Support for debugging async flow mods. */
694 struct list completions
;
696 bool has_bundle_action
; /* True when the first bundle action appears. */
697 struct netdev_stats stats
; /* To account packets generated and consumed in
702 long long int stp_last_tick
;
704 /* VLAN splinters. */
705 struct hmap realdev_vid_map
; /* (realdev,vid) -> vlandev. */
706 struct hmap vlandev_map
; /* vlandev -> (realdev,vid). */
709 struct sset ports
; /* Set of standard port names. */
710 struct sset ghost_ports
; /* Ports with no datapath port. */
711 struct sset port_poll_set
; /* Queued names for port_poll() reply. */
712 int port_poll_errno
; /* Last errno for port_poll() reply. */
715 /* Defer flow mod completion until "ovs-appctl ofproto/unclog"? (Useful only
716 * for debugging the asynchronous flow_mod implementation.) */
719 /* All existing ofproto_dpif instances, indexed by ->up.name. */
720 static struct hmap all_ofproto_dpifs
= HMAP_INITIALIZER(&all_ofproto_dpifs
);
722 static void ofproto_dpif_unixctl_init(void);
724 static struct ofproto_dpif
*
725 ofproto_dpif_cast(const struct ofproto
*ofproto
)
727 ovs_assert(ofproto
->ofproto_class
== &ofproto_dpif_class
);
728 return CONTAINER_OF(ofproto
, struct ofproto_dpif
, up
);
731 static struct ofport_dpif
*get_ofp_port(const struct ofproto_dpif
*,
733 static struct ofport_dpif
*get_odp_port(const struct ofproto_dpif
*,
735 static void ofproto_trace(struct ofproto_dpif
*, const struct flow
*,
736 const struct ofpbuf
*,
737 const struct initial_vals
*, struct ds
*);
739 /* Packet processing. */
740 static void update_learning_table(struct ofproto_dpif
*,
741 const struct flow
*, int vlan
,
744 #define FLOW_MISS_MAX_BATCH 50
745 static int handle_upcalls(struct dpif_backer
*, unsigned int max_batch
);
747 /* Flow expiration. */
748 static int expire(struct dpif_backer
*);
751 static void send_netflow_active_timeouts(struct ofproto_dpif
*);
754 static int send_packet(const struct ofport_dpif
*, struct ofpbuf
*packet
);
755 static size_t compose_sflow_action(const struct ofproto_dpif
*,
756 struct ofpbuf
*odp_actions
,
757 const struct flow
*, uint32_t odp_port
);
758 static void add_mirror_actions(struct action_xlate_ctx
*ctx
,
759 const struct flow
*flow
);
760 /* Global variables. */
761 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
763 /* Initial mappings of port to bridge mappings. */
764 static struct shash init_ofp_ports
= SHASH_INITIALIZER(&init_ofp_ports
);
766 /* Factory functions. */
769 init(const struct shash
*iface_hints
)
771 struct shash_node
*node
;
773 /* Make a local copy, since we don't own 'iface_hints' elements. */
774 SHASH_FOR_EACH(node
, iface_hints
) {
775 const struct iface_hint
*orig_hint
= node
->data
;
776 struct iface_hint
*new_hint
= xmalloc(sizeof *new_hint
);
778 new_hint
->br_name
= xstrdup(orig_hint
->br_name
);
779 new_hint
->br_type
= xstrdup(orig_hint
->br_type
);
780 new_hint
->ofp_port
= orig_hint
->ofp_port
;
782 shash_add(&init_ofp_ports
, node
->name
, new_hint
);
787 enumerate_types(struct sset
*types
)
789 dp_enumerate_types(types
);
793 enumerate_names(const char *type
, struct sset
*names
)
795 struct ofproto_dpif
*ofproto
;
798 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
799 if (strcmp(type
, ofproto
->up
.type
)) {
802 sset_add(names
, ofproto
->up
.name
);
809 del(const char *type
, const char *name
)
814 error
= dpif_open(name
, type
, &dpif
);
816 error
= dpif_delete(dpif
);
823 port_open_type(const char *datapath_type
, const char *port_type
)
825 return dpif_port_open_type(datapath_type
, port_type
);
828 /* Type functions. */
830 static struct ofproto_dpif
*
831 lookup_ofproto_dpif_by_port_name(const char *name
)
833 struct ofproto_dpif
*ofproto
;
835 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
836 if (sset_contains(&ofproto
->ports
, name
)) {
845 type_run(const char *type
)
847 struct dpif_backer
*backer
;
851 backer
= shash_find_data(&all_dpif_backers
, type
);
853 /* This is not necessarily a problem, since backers are only
854 * created on demand. */
858 dpif_run(backer
->dpif
);
860 if (backer
->need_revalidate
861 || !tag_set_is_empty(&backer
->revalidate_set
)) {
862 struct tag_set revalidate_set
= backer
->revalidate_set
;
863 bool need_revalidate
= backer
->need_revalidate
;
864 struct ofproto_dpif
*ofproto
;
865 struct simap_node
*node
;
866 struct simap tmp_backers
;
868 /* Handle tunnel garbage collection. */
869 simap_init(&tmp_backers
);
870 simap_swap(&backer
->tnl_backers
, &tmp_backers
);
872 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
873 struct ofport_dpif
*iter
;
875 if (backer
!= ofproto
->backer
) {
879 HMAP_FOR_EACH (iter
, up
.hmap_node
, &ofproto
->up
.ports
) {
882 if (!iter
->tnl_port
) {
886 dp_port
= netdev_vport_get_dpif_port(iter
->up
.netdev
);
887 node
= simap_find(&tmp_backers
, dp_port
);
889 simap_put(&backer
->tnl_backers
, dp_port
, node
->data
);
890 simap_delete(&tmp_backers
, node
);
891 node
= simap_find(&backer
->tnl_backers
, dp_port
);
893 node
= simap_find(&backer
->tnl_backers
, dp_port
);
895 uint32_t odp_port
= UINT32_MAX
;
897 if (!dpif_port_add(backer
->dpif
, iter
->up
.netdev
,
899 simap_put(&backer
->tnl_backers
, dp_port
, odp_port
);
900 node
= simap_find(&backer
->tnl_backers
, dp_port
);
905 iter
->odp_port
= node
? node
->data
: OVSP_NONE
;
906 if (tnl_port_reconfigure(&iter
->up
, iter
->odp_port
,
908 backer
->need_revalidate
= REV_RECONFIGURE
;
913 SIMAP_FOR_EACH (node
, &tmp_backers
) {
914 dpif_port_del(backer
->dpif
, node
->data
);
916 simap_destroy(&tmp_backers
);
918 switch (backer
->need_revalidate
) {
919 case REV_RECONFIGURE
: COVERAGE_INC(rev_reconfigure
); break;
920 case REV_STP
: COVERAGE_INC(rev_stp
); break;
921 case REV_PORT_TOGGLED
: COVERAGE_INC(rev_port_toggled
); break;
922 case REV_FLOW_TABLE
: COVERAGE_INC(rev_flow_table
); break;
923 case REV_INCONSISTENCY
: COVERAGE_INC(rev_inconsistency
); break;
926 if (backer
->need_revalidate
) {
927 /* Clear the drop_keys in case we should now be accepting some
928 * formerly dropped flows. */
929 drop_key_clear(backer
);
932 /* Clear the revalidation flags. */
933 tag_set_init(&backer
->revalidate_set
);
934 backer
->need_revalidate
= 0;
936 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
937 struct facet
*facet
, *next
;
939 if (ofproto
->backer
!= backer
) {
943 HMAP_FOR_EACH_SAFE (facet
, next
, hmap_node
, &ofproto
->facets
) {
945 || tag_set_intersects(&revalidate_set
, facet
->tags
)) {
946 facet_revalidate(facet
);
952 if (timer_expired(&backer
->next_expiration
)) {
953 int delay
= expire(backer
);
954 timer_set_duration(&backer
->next_expiration
, delay
);
957 /* Check for port changes in the dpif. */
958 while ((error
= dpif_port_poll(backer
->dpif
, &devname
)) == 0) {
959 struct ofproto_dpif
*ofproto
;
960 struct dpif_port port
;
962 /* Don't report on the datapath's device. */
963 if (!strcmp(devname
, dpif_base_name(backer
->dpif
))) {
967 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
,
968 &all_ofproto_dpifs
) {
969 if (simap_contains(&ofproto
->backer
->tnl_backers
, devname
)) {
974 ofproto
= lookup_ofproto_dpif_by_port_name(devname
);
975 if (dpif_port_query_by_name(backer
->dpif
, devname
, &port
)) {
976 /* The port was removed. If we know the datapath,
977 * report it through poll_set(). If we don't, it may be
978 * notifying us of a removal we initiated, so ignore it.
979 * If there's a pending ENOBUFS, let it stand, since
980 * everything will be reevaluated. */
981 if (ofproto
&& ofproto
->port_poll_errno
!= ENOBUFS
) {
982 sset_add(&ofproto
->port_poll_set
, devname
);
983 ofproto
->port_poll_errno
= 0;
985 } else if (!ofproto
) {
986 /* The port was added, but we don't know with which
987 * ofproto we should associate it. Delete it. */
988 dpif_port_del(backer
->dpif
, port
.port_no
);
990 dpif_port_destroy(&port
);
996 if (error
!= EAGAIN
) {
997 struct ofproto_dpif
*ofproto
;
999 /* There was some sort of error, so propagate it to all
1000 * ofprotos that use this backer. */
1001 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
,
1002 &all_ofproto_dpifs
) {
1003 if (ofproto
->backer
== backer
) {
1004 sset_clear(&ofproto
->port_poll_set
);
1005 ofproto
->port_poll_errno
= error
;
1014 type_run_fast(const char *type
)
1016 struct dpif_backer
*backer
;
1019 backer
= shash_find_data(&all_dpif_backers
, type
);
1021 /* This is not necessarily a problem, since backers are only
1022 * created on demand. */
1026 /* Handle one or more batches of upcalls, until there's nothing left to do
1027 * or until we do a fixed total amount of work.
1029 * We do work in batches because it can be much cheaper to set up a number
1030 * of flows and fire off their patches all at once. We do multiple batches
1031 * because in some cases handling a packet can cause another packet to be
1032 * queued almost immediately as part of the return flow. Both
1033 * optimizations can make major improvements on some benchmarks and
1034 * presumably for real traffic as well. */
1036 while (work
< FLOW_MISS_MAX_BATCH
) {
1037 int retval
= handle_upcalls(backer
, FLOW_MISS_MAX_BATCH
- work
);
1048 type_wait(const char *type
)
1050 struct dpif_backer
*backer
;
1052 backer
= shash_find_data(&all_dpif_backers
, type
);
1054 /* This is not necessarily a problem, since backers are only
1055 * created on demand. */
1059 timer_wait(&backer
->next_expiration
);
1062 /* Basic life-cycle. */
1064 static int add_internal_flows(struct ofproto_dpif
*);
1066 static struct ofproto
*
1069 struct ofproto_dpif
*ofproto
= xmalloc(sizeof *ofproto
);
1070 return &ofproto
->up
;
1074 dealloc(struct ofproto
*ofproto_
)
1076 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1081 close_dpif_backer(struct dpif_backer
*backer
)
1083 struct shash_node
*node
;
1085 ovs_assert(backer
->refcount
> 0);
1087 if (--backer
->refcount
) {
1091 drop_key_clear(backer
);
1092 hmap_destroy(&backer
->drop_keys
);
1094 simap_destroy(&backer
->tnl_backers
);
1095 hmap_destroy(&backer
->odp_to_ofport_map
);
1096 node
= shash_find(&all_dpif_backers
, backer
->type
);
1098 shash_delete(&all_dpif_backers
, node
);
1099 dpif_close(backer
->dpif
);
1104 /* Datapath port slated for removal from datapath. */
1105 struct odp_garbage
{
1106 struct list list_node
;
1111 open_dpif_backer(const char *type
, struct dpif_backer
**backerp
)
1113 struct dpif_backer
*backer
;
1114 struct dpif_port_dump port_dump
;
1115 struct dpif_port port
;
1116 struct shash_node
*node
;
1117 struct list garbage_list
;
1118 struct odp_garbage
*garbage
, *next
;
1124 backer
= shash_find_data(&all_dpif_backers
, type
);
1131 backer_name
= xasprintf("ovs-%s", type
);
1133 /* Remove any existing datapaths, since we assume we're the only
1134 * userspace controlling the datapath. */
1136 dp_enumerate_names(type
, &names
);
1137 SSET_FOR_EACH(name
, &names
) {
1138 struct dpif
*old_dpif
;
1140 /* Don't remove our backer if it exists. */
1141 if (!strcmp(name
, backer_name
)) {
1145 if (dpif_open(name
, type
, &old_dpif
)) {
1146 VLOG_WARN("couldn't open old datapath %s to remove it", name
);
1148 dpif_delete(old_dpif
);
1149 dpif_close(old_dpif
);
1152 sset_destroy(&names
);
1154 backer
= xmalloc(sizeof *backer
);
1156 error
= dpif_create_and_open(backer_name
, type
, &backer
->dpif
);
1159 VLOG_ERR("failed to open datapath of type %s: %s", type
,
1165 backer
->type
= xstrdup(type
);
1166 backer
->refcount
= 1;
1167 hmap_init(&backer
->odp_to_ofport_map
);
1168 hmap_init(&backer
->drop_keys
);
1169 timer_set_duration(&backer
->next_expiration
, 1000);
1170 backer
->need_revalidate
= 0;
1171 simap_init(&backer
->tnl_backers
);
1172 tag_set_init(&backer
->revalidate_set
);
1175 dpif_flow_flush(backer
->dpif
);
1177 /* Loop through the ports already on the datapath and remove any
1178 * that we don't need anymore. */
1179 list_init(&garbage_list
);
1180 dpif_port_dump_start(&port_dump
, backer
->dpif
);
1181 while (dpif_port_dump_next(&port_dump
, &port
)) {
1182 node
= shash_find(&init_ofp_ports
, port
.name
);
1183 if (!node
&& strcmp(port
.name
, dpif_base_name(backer
->dpif
))) {
1184 garbage
= xmalloc(sizeof *garbage
);
1185 garbage
->odp_port
= port
.port_no
;
1186 list_push_front(&garbage_list
, &garbage
->list_node
);
1189 dpif_port_dump_done(&port_dump
);
1191 LIST_FOR_EACH_SAFE (garbage
, next
, list_node
, &garbage_list
) {
1192 dpif_port_del(backer
->dpif
, garbage
->odp_port
);
1193 list_remove(&garbage
->list_node
);
1197 shash_add(&all_dpif_backers
, type
, backer
);
1199 error
= dpif_recv_set(backer
->dpif
, true);
1201 VLOG_ERR("failed to listen on datapath of type %s: %s",
1202 type
, strerror(error
));
1203 close_dpif_backer(backer
);
1211 construct(struct ofproto
*ofproto_
)
1213 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1214 struct shash_node
*node
, *next
;
1219 error
= open_dpif_backer(ofproto
->up
.type
, &ofproto
->backer
);
1224 max_ports
= dpif_get_max_ports(ofproto
->backer
->dpif
);
1225 ofproto_init_max_ports(ofproto_
, MIN(max_ports
, OFPP_MAX
));
1227 ofproto
->n_matches
= 0;
1229 ofproto
->netflow
= NULL
;
1230 ofproto
->sflow
= NULL
;
1231 ofproto
->stp
= NULL
;
1232 hmap_init(&ofproto
->bundles
);
1233 ofproto
->ml
= mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME
);
1234 for (i
= 0; i
< MAX_MIRRORS
; i
++) {
1235 ofproto
->mirrors
[i
] = NULL
;
1237 ofproto
->has_bonded_bundles
= false;
1239 hmap_init(&ofproto
->facets
);
1240 hmap_init(&ofproto
->subfacets
);
1241 ofproto
->governor
= NULL
;
1243 for (i
= 0; i
< N_TABLES
; i
++) {
1244 struct table_dpif
*table
= &ofproto
->tables
[i
];
1246 table
->catchall_table
= NULL
;
1247 table
->other_table
= NULL
;
1248 table
->basis
= random_uint32();
1251 list_init(&ofproto
->completions
);
1253 ofproto_dpif_unixctl_init();
1255 ofproto
->has_mirrors
= false;
1256 ofproto
->has_bundle_action
= false;
1258 hmap_init(&ofproto
->vlandev_map
);
1259 hmap_init(&ofproto
->realdev_vid_map
);
1261 sset_init(&ofproto
->ports
);
1262 sset_init(&ofproto
->ghost_ports
);
1263 sset_init(&ofproto
->port_poll_set
);
1264 ofproto
->port_poll_errno
= 0;
1266 SHASH_FOR_EACH_SAFE (node
, next
, &init_ofp_ports
) {
1267 struct iface_hint
*iface_hint
= node
->data
;
1269 if (!strcmp(iface_hint
->br_name
, ofproto
->up
.name
)) {
1270 /* Check if the datapath already has this port. */
1271 if (dpif_port_exists(ofproto
->backer
->dpif
, node
->name
)) {
1272 sset_add(&ofproto
->ports
, node
->name
);
1275 free(iface_hint
->br_name
);
1276 free(iface_hint
->br_type
);
1278 shash_delete(&init_ofp_ports
, node
);
1282 hmap_insert(&all_ofproto_dpifs
, &ofproto
->all_ofproto_dpifs_node
,
1283 hash_string(ofproto
->up
.name
, 0));
1284 memset(&ofproto
->stats
, 0, sizeof ofproto
->stats
);
1286 ofproto_init_tables(ofproto_
, N_TABLES
);
1287 error
= add_internal_flows(ofproto
);
1288 ofproto
->up
.tables
[TBL_INTERNAL
].flags
= OFTABLE_HIDDEN
| OFTABLE_READONLY
;
1294 add_internal_flow(struct ofproto_dpif
*ofproto
, int id
,
1295 const struct ofpbuf
*ofpacts
, struct rule_dpif
**rulep
)
1297 struct ofputil_flow_mod fm
;
1300 match_init_catchall(&fm
.match
);
1302 match_set_reg(&fm
.match
, 0, id
);
1303 fm
.new_cookie
= htonll(0);
1304 fm
.cookie
= htonll(0);
1305 fm
.cookie_mask
= htonll(0);
1306 fm
.table_id
= TBL_INTERNAL
;
1307 fm
.command
= OFPFC_ADD
;
1308 fm
.idle_timeout
= 0;
1309 fm
.hard_timeout
= 0;
1313 fm
.ofpacts
= ofpacts
->data
;
1314 fm
.ofpacts_len
= ofpacts
->size
;
1316 error
= ofproto_flow_mod(&ofproto
->up
, &fm
);
1318 VLOG_ERR_RL(&rl
, "failed to add internal flow %d (%s)",
1319 id
, ofperr_to_string(error
));
1323 *rulep
= rule_dpif_lookup__(ofproto
, &fm
.match
.flow
, TBL_INTERNAL
);
1324 ovs_assert(*rulep
!= NULL
);
1330 add_internal_flows(struct ofproto_dpif
*ofproto
)
1332 struct ofpact_controller
*controller
;
1333 uint64_t ofpacts_stub
[128 / 8];
1334 struct ofpbuf ofpacts
;
1338 ofpbuf_use_stack(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
1341 controller
= ofpact_put_CONTROLLER(&ofpacts
);
1342 controller
->max_len
= UINT16_MAX
;
1343 controller
->controller_id
= 0;
1344 controller
->reason
= OFPR_NO_MATCH
;
1345 ofpact_pad(&ofpacts
);
1347 error
= add_internal_flow(ofproto
, id
++, &ofpacts
, &ofproto
->miss_rule
);
1352 ofpbuf_clear(&ofpacts
);
1353 error
= add_internal_flow(ofproto
, id
++, &ofpacts
,
1354 &ofproto
->no_packet_in_rule
);
1359 complete_operations(struct ofproto_dpif
*ofproto
)
1361 struct dpif_completion
*c
, *next
;
1363 LIST_FOR_EACH_SAFE (c
, next
, list_node
, &ofproto
->completions
) {
1364 ofoperation_complete(c
->op
, 0);
1365 list_remove(&c
->list_node
);
1371 destruct(struct ofproto
*ofproto_
)
1373 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1374 struct rule_dpif
*rule
, *next_rule
;
1375 struct oftable
*table
;
1378 hmap_remove(&all_ofproto_dpifs
, &ofproto
->all_ofproto_dpifs_node
);
1379 complete_operations(ofproto
);
1381 OFPROTO_FOR_EACH_TABLE (table
, &ofproto
->up
) {
1382 struct cls_cursor cursor
;
1384 cls_cursor_init(&cursor
, &table
->cls
, NULL
);
1385 CLS_CURSOR_FOR_EACH_SAFE (rule
, next_rule
, up
.cr
, &cursor
) {
1386 ofproto_rule_destroy(&rule
->up
);
1390 for (i
= 0; i
< MAX_MIRRORS
; i
++) {
1391 mirror_destroy(ofproto
->mirrors
[i
]);
1394 netflow_destroy(ofproto
->netflow
);
1395 dpif_sflow_destroy(ofproto
->sflow
);
1396 hmap_destroy(&ofproto
->bundles
);
1397 mac_learning_destroy(ofproto
->ml
);
1399 hmap_destroy(&ofproto
->facets
);
1400 hmap_destroy(&ofproto
->subfacets
);
1401 governor_destroy(ofproto
->governor
);
1403 hmap_destroy(&ofproto
->vlandev_map
);
1404 hmap_destroy(&ofproto
->realdev_vid_map
);
1406 sset_destroy(&ofproto
->ports
);
1407 sset_destroy(&ofproto
->ghost_ports
);
1408 sset_destroy(&ofproto
->port_poll_set
);
1410 close_dpif_backer(ofproto
->backer
);
1414 run_fast(struct ofproto
*ofproto_
)
1416 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1417 struct ofport_dpif
*ofport
;
1419 HMAP_FOR_EACH (ofport
, up
.hmap_node
, &ofproto
->up
.ports
) {
1420 port_run_fast(ofport
);
1427 run(struct ofproto
*ofproto_
)
1429 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1430 struct ofport_dpif
*ofport
;
1431 struct ofbundle
*bundle
;
1435 complete_operations(ofproto
);
1438 error
= run_fast(ofproto_
);
1443 if (ofproto
->netflow
) {
1444 if (netflow_run(ofproto
->netflow
)) {
1445 send_netflow_active_timeouts(ofproto
);
1448 if (ofproto
->sflow
) {
1449 dpif_sflow_run(ofproto
->sflow
);
1452 HMAP_FOR_EACH (ofport
, up
.hmap_node
, &ofproto
->up
.ports
) {
1455 HMAP_FOR_EACH (bundle
, hmap_node
, &ofproto
->bundles
) {
1460 mac_learning_run(ofproto
->ml
, &ofproto
->backer
->revalidate_set
);
1462 /* Check the consistency of a random facet, to aid debugging. */
1463 if (!hmap_is_empty(&ofproto
->facets
)
1464 && !ofproto
->backer
->need_revalidate
) {
1465 struct facet
*facet
;
1467 facet
= CONTAINER_OF(hmap_random_node(&ofproto
->facets
),
1468 struct facet
, hmap_node
);
1469 if (!tag_set_intersects(&ofproto
->backer
->revalidate_set
,
1471 if (!facet_check_consistency(facet
)) {
1472 ofproto
->backer
->need_revalidate
= REV_INCONSISTENCY
;
1477 if (ofproto
->governor
) {
1480 governor_run(ofproto
->governor
);
1482 /* If the governor has shrunk to its minimum size and the number of
1483 * subfacets has dwindled, then drop the governor entirely.
1485 * For hysteresis, the number of subfacets to drop the governor is
1486 * smaller than the number needed to trigger its creation. */
1487 n_subfacets
= hmap_count(&ofproto
->subfacets
);
1488 if (n_subfacets
* 4 < ofproto
->up
.flow_eviction_threshold
1489 && governor_is_idle(ofproto
->governor
)) {
1490 governor_destroy(ofproto
->governor
);
1491 ofproto
->governor
= NULL
;
1499 wait(struct ofproto
*ofproto_
)
1501 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1502 struct ofport_dpif
*ofport
;
1503 struct ofbundle
*bundle
;
1505 if (!clogged
&& !list_is_empty(&ofproto
->completions
)) {
1506 poll_immediate_wake();
1509 dpif_wait(ofproto
->backer
->dpif
);
1510 dpif_recv_wait(ofproto
->backer
->dpif
);
1511 if (ofproto
->sflow
) {
1512 dpif_sflow_wait(ofproto
->sflow
);
1514 if (!tag_set_is_empty(&ofproto
->backer
->revalidate_set
)) {
1515 poll_immediate_wake();
1517 HMAP_FOR_EACH (ofport
, up
.hmap_node
, &ofproto
->up
.ports
) {
1520 HMAP_FOR_EACH (bundle
, hmap_node
, &ofproto
->bundles
) {
1521 bundle_wait(bundle
);
1523 if (ofproto
->netflow
) {
1524 netflow_wait(ofproto
->netflow
);
1526 mac_learning_wait(ofproto
->ml
);
1528 if (ofproto
->backer
->need_revalidate
) {
1529 /* Shouldn't happen, but if it does just go around again. */
1530 VLOG_DBG_RL(&rl
, "need revalidate in ofproto_wait_cb()");
1531 poll_immediate_wake();
1533 if (ofproto
->governor
) {
1534 governor_wait(ofproto
->governor
);
1539 get_memory_usage(const struct ofproto
*ofproto_
, struct simap
*usage
)
1541 const struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1543 simap_increase(usage
, "facets", hmap_count(&ofproto
->facets
));
1544 simap_increase(usage
, "subfacets", hmap_count(&ofproto
->subfacets
));
1548 flush(struct ofproto
*ofproto_
)
1550 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1551 struct subfacet
*subfacet
, *next_subfacet
;
1552 struct subfacet
*batch
[SUBFACET_DESTROY_MAX_BATCH
];
1556 HMAP_FOR_EACH_SAFE (subfacet
, next_subfacet
, hmap_node
,
1557 &ofproto
->subfacets
) {
1558 if (subfacet
->path
!= SF_NOT_INSTALLED
) {
1559 batch
[n_batch
++] = subfacet
;
1560 if (n_batch
>= SUBFACET_DESTROY_MAX_BATCH
) {
1561 subfacet_destroy_batch(ofproto
, batch
, n_batch
);
1565 subfacet_destroy(subfacet
);
1570 subfacet_destroy_batch(ofproto
, batch
, n_batch
);
1575 get_features(struct ofproto
*ofproto_ OVS_UNUSED
,
1576 bool *arp_match_ip
, enum ofputil_action_bitmap
*actions
)
1578 *arp_match_ip
= true;
1579 *actions
= (OFPUTIL_A_OUTPUT
|
1580 OFPUTIL_A_SET_VLAN_VID
|
1581 OFPUTIL_A_SET_VLAN_PCP
|
1582 OFPUTIL_A_STRIP_VLAN
|
1583 OFPUTIL_A_SET_DL_SRC
|
1584 OFPUTIL_A_SET_DL_DST
|
1585 OFPUTIL_A_SET_NW_SRC
|
1586 OFPUTIL_A_SET_NW_DST
|
1587 OFPUTIL_A_SET_NW_TOS
|
1588 OFPUTIL_A_SET_TP_SRC
|
1589 OFPUTIL_A_SET_TP_DST
|
1594 get_tables(struct ofproto
*ofproto_
, struct ofp12_table_stats
*ots
)
1596 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1597 struct dpif_dp_stats s
;
1599 strcpy(ots
->name
, "classifier");
1601 dpif_get_dp_stats(ofproto
->backer
->dpif
, &s
);
1603 ots
->lookup_count
= htonll(s
.n_hit
+ s
.n_missed
);
1604 ots
->matched_count
= htonll(s
.n_hit
+ ofproto
->n_matches
);
1607 static struct ofport
*
1610 struct ofport_dpif
*port
= xmalloc(sizeof *port
);
1615 port_dealloc(struct ofport
*port_
)
1617 struct ofport_dpif
*port
= ofport_dpif_cast(port_
);
1622 port_construct(struct ofport
*port_
)
1624 struct ofport_dpif
*port
= ofport_dpif_cast(port_
);
1625 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(port
->up
.ofproto
);
1626 const struct netdev
*netdev
= port
->up
.netdev
;
1627 struct dpif_port dpif_port
;
1630 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
1631 port
->bundle
= NULL
;
1633 port
->tag
= tag_create_random();
1634 port
->may_enable
= true;
1635 port
->stp_port
= NULL
;
1636 port
->stp_state
= STP_DISABLED
;
1637 port
->tnl_port
= NULL
;
1638 hmap_init(&port
->priorities
);
1639 port
->realdev_ofp_port
= 0;
1640 port
->vlandev_vid
= 0;
1641 port
->carrier_seq
= netdev_get_carrier_resets(netdev
);
1643 if (netdev_vport_is_patch(netdev
)) {
1644 /* XXX By bailing out here, we don't do required sFlow work. */
1645 port
->odp_port
= OVSP_NONE
;
1649 error
= dpif_port_query_by_name(ofproto
->backer
->dpif
,
1650 netdev_vport_get_dpif_port(netdev
),
1656 port
->odp_port
= dpif_port
.port_no
;
1658 if (netdev_get_tunnel_config(netdev
)) {
1659 port
->tnl_port
= tnl_port_add(&port
->up
, port
->odp_port
);
1661 /* Sanity-check that a mapping doesn't already exist. This
1662 * shouldn't happen for non-tunnel ports. */
1663 if (odp_port_to_ofp_port(ofproto
, port
->odp_port
) != OFPP_NONE
) {
1664 VLOG_ERR("port %s already has an OpenFlow port number",
1666 dpif_port_destroy(&dpif_port
);
1670 hmap_insert(&ofproto
->backer
->odp_to_ofport_map
, &port
->odp_port_node
,
1671 hash_int(port
->odp_port
, 0));
1673 dpif_port_destroy(&dpif_port
);
1675 if (ofproto
->sflow
) {
1676 dpif_sflow_add_port(ofproto
->sflow
, port_
, port
->odp_port
);
1683 port_destruct(struct ofport
*port_
)
1685 struct ofport_dpif
*port
= ofport_dpif_cast(port_
);
1686 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(port
->up
.ofproto
);
1687 const char *dp_port_name
= netdev_vport_get_dpif_port(port
->up
.netdev
);
1688 const char *devname
= netdev_get_name(port
->up
.netdev
);
1690 if (dpif_port_exists(ofproto
->backer
->dpif
, dp_port_name
)) {
1691 /* The underlying device is still there, so delete it. This
1692 * happens when the ofproto is being destroyed, since the caller
1693 * assumes that removal of attached ports will happen as part of
1695 if (!port
->tnl_port
) {
1696 dpif_port_del(ofproto
->backer
->dpif
, port
->odp_port
);
1698 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
1701 if (port
->odp_port
!= OVSP_NONE
&& !port
->tnl_port
) {
1702 hmap_remove(&ofproto
->backer
->odp_to_ofport_map
, &port
->odp_port_node
);
1705 tnl_port_del(port
->tnl_port
);
1706 sset_find_and_delete(&ofproto
->ports
, devname
);
1707 sset_find_and_delete(&ofproto
->ghost_ports
, devname
);
1708 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
1709 bundle_remove(port_
);
1710 set_cfm(port_
, NULL
);
1711 if (ofproto
->sflow
) {
1712 dpif_sflow_del_port(ofproto
->sflow
, port
->odp_port
);
1715 ofport_clear_priorities(port
);
1716 hmap_destroy(&port
->priorities
);
1720 port_modified(struct ofport
*port_
)
1722 struct ofport_dpif
*port
= ofport_dpif_cast(port_
);
1724 if (port
->bundle
&& port
->bundle
->bond
) {
1725 bond_slave_set_netdev(port
->bundle
->bond
, port
, port
->up
.netdev
);
1730 port_reconfigured(struct ofport
*port_
, enum ofputil_port_config old_config
)
1732 struct ofport_dpif
*port
= ofport_dpif_cast(port_
);
1733 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(port
->up
.ofproto
);
1734 enum ofputil_port_config changed
= old_config
^ port
->up
.pp
.config
;
1736 if (changed
& (OFPUTIL_PC_NO_RECV
| OFPUTIL_PC_NO_RECV_STP
|
1737 OFPUTIL_PC_NO_FWD
| OFPUTIL_PC_NO_FLOOD
|
1738 OFPUTIL_PC_NO_PACKET_IN
)) {
1739 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
1741 if (changed
& OFPUTIL_PC_NO_FLOOD
&& port
->bundle
) {
1742 bundle_update(port
->bundle
);
1748 set_sflow(struct ofproto
*ofproto_
,
1749 const struct ofproto_sflow_options
*sflow_options
)
1751 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1752 struct dpif_sflow
*ds
= ofproto
->sflow
;
1754 if (sflow_options
) {
1756 struct ofport_dpif
*ofport
;
1758 ds
= ofproto
->sflow
= dpif_sflow_create();
1759 HMAP_FOR_EACH (ofport
, up
.hmap_node
, &ofproto
->up
.ports
) {
1760 dpif_sflow_add_port(ds
, &ofport
->up
, ofport
->odp_port
);
1762 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
1764 dpif_sflow_set_options(ds
, sflow_options
);
1767 dpif_sflow_destroy(ds
);
1768 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
1769 ofproto
->sflow
= NULL
;
1776 set_cfm(struct ofport
*ofport_
, const struct cfm_settings
*s
)
1778 struct ofport_dpif
*ofport
= ofport_dpif_cast(ofport_
);
1785 struct ofproto_dpif
*ofproto
;
1787 ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
1788 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
1789 ofport
->cfm
= cfm_create(netdev_get_name(ofport
->up
.netdev
));
1792 if (cfm_configure(ofport
->cfm
, s
)) {
1798 cfm_destroy(ofport
->cfm
);
1804 get_cfm_status(const struct ofport
*ofport_
,
1805 struct ofproto_cfm_status
*status
)
1807 struct ofport_dpif
*ofport
= ofport_dpif_cast(ofport_
);
1810 status
->faults
= cfm_get_fault(ofport
->cfm
);
1811 status
->remote_opstate
= cfm_get_opup(ofport
->cfm
);
1812 status
->health
= cfm_get_health(ofport
->cfm
);
1813 cfm_get_remote_mpids(ofport
->cfm
, &status
->rmps
, &status
->n_rmps
);
1820 /* Spanning Tree. */
1823 send_bpdu_cb(struct ofpbuf
*pkt
, int port_num
, void *ofproto_
)
1825 struct ofproto_dpif
*ofproto
= ofproto_
;
1826 struct stp_port
*sp
= stp_get_port(ofproto
->stp
, port_num
);
1827 struct ofport_dpif
*ofport
;
1829 ofport
= stp_port_get_aux(sp
);
1831 VLOG_WARN_RL(&rl
, "%s: cannot send BPDU on unknown port %d",
1832 ofproto
->up
.name
, port_num
);
1834 struct eth_header
*eth
= pkt
->l2
;
1836 netdev_get_etheraddr(ofport
->up
.netdev
, eth
->eth_src
);
1837 if (eth_addr_is_zero(eth
->eth_src
)) {
1838 VLOG_WARN_RL(&rl
, "%s: cannot send BPDU on port %d "
1839 "with unknown MAC", ofproto
->up
.name
, port_num
);
1841 send_packet(ofport
, pkt
);
1847 /* Configures STP on 'ofproto_' using the settings defined in 's'. */
1849 set_stp(struct ofproto
*ofproto_
, const struct ofproto_stp_settings
*s
)
1851 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1853 /* Only revalidate flows if the configuration changed. */
1854 if (!s
!= !ofproto
->stp
) {
1855 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
1859 if (!ofproto
->stp
) {
1860 ofproto
->stp
= stp_create(ofproto_
->name
, s
->system_id
,
1861 send_bpdu_cb
, ofproto
);
1862 ofproto
->stp_last_tick
= time_msec();
1865 stp_set_bridge_id(ofproto
->stp
, s
->system_id
);
1866 stp_set_bridge_priority(ofproto
->stp
, s
->priority
);
1867 stp_set_hello_time(ofproto
->stp
, s
->hello_time
);
1868 stp_set_max_age(ofproto
->stp
, s
->max_age
);
1869 stp_set_forward_delay(ofproto
->stp
, s
->fwd_delay
);
1871 struct ofport
*ofport
;
1873 HMAP_FOR_EACH (ofport
, hmap_node
, &ofproto
->up
.ports
) {
1874 set_stp_port(ofport
, NULL
);
1877 stp_destroy(ofproto
->stp
);
1878 ofproto
->stp
= NULL
;
1885 get_stp_status(struct ofproto
*ofproto_
, struct ofproto_stp_status
*s
)
1887 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
1891 s
->bridge_id
= stp_get_bridge_id(ofproto
->stp
);
1892 s
->designated_root
= stp_get_designated_root(ofproto
->stp
);
1893 s
->root_path_cost
= stp_get_root_path_cost(ofproto
->stp
);
1902 update_stp_port_state(struct ofport_dpif
*ofport
)
1904 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
1905 enum stp_state state
;
1907 /* Figure out new state. */
1908 state
= ofport
->stp_port
? stp_port_get_state(ofport
->stp_port
)
1912 if (ofport
->stp_state
!= state
) {
1913 enum ofputil_port_state of_state
;
1916 VLOG_DBG_RL(&rl
, "port %s: STP state changed from %s to %s",
1917 netdev_get_name(ofport
->up
.netdev
),
1918 stp_state_name(ofport
->stp_state
),
1919 stp_state_name(state
));
1920 if (stp_learn_in_state(ofport
->stp_state
)
1921 != stp_learn_in_state(state
)) {
1922 /* xxx Learning action flows should also be flushed. */
1923 mac_learning_flush(ofproto
->ml
,
1924 &ofproto
->backer
->revalidate_set
);
1926 fwd_change
= stp_forward_in_state(ofport
->stp_state
)
1927 != stp_forward_in_state(state
);
1929 ofproto
->backer
->need_revalidate
= REV_STP
;
1930 ofport
->stp_state
= state
;
1931 ofport
->stp_state_entered
= time_msec();
1933 if (fwd_change
&& ofport
->bundle
) {
1934 bundle_update(ofport
->bundle
);
1937 /* Update the STP state bits in the OpenFlow port description. */
1938 of_state
= ofport
->up
.pp
.state
& ~OFPUTIL_PS_STP_MASK
;
1939 of_state
|= (state
== STP_LISTENING
? OFPUTIL_PS_STP_LISTEN
1940 : state
== STP_LEARNING
? OFPUTIL_PS_STP_LEARN
1941 : state
== STP_FORWARDING
? OFPUTIL_PS_STP_FORWARD
1942 : state
== STP_BLOCKING
? OFPUTIL_PS_STP_BLOCK
1944 ofproto_port_set_state(&ofport
->up
, of_state
);
1948 /* Configures STP on 'ofport_' using the settings defined in 's'. The
1949 * caller is responsible for assigning STP port numbers and ensuring
1950 * there are no duplicates. */
1952 set_stp_port(struct ofport
*ofport_
,
1953 const struct ofproto_port_stp_settings
*s
)
1955 struct ofport_dpif
*ofport
= ofport_dpif_cast(ofport_
);
1956 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
1957 struct stp_port
*sp
= ofport
->stp_port
;
1959 if (!s
|| !s
->enable
) {
1961 ofport
->stp_port
= NULL
;
1962 stp_port_disable(sp
);
1963 update_stp_port_state(ofport
);
1966 } else if (sp
&& stp_port_no(sp
) != s
->port_num
1967 && ofport
== stp_port_get_aux(sp
)) {
1968 /* The port-id changed, so disable the old one if it's not
1969 * already in use by another port. */
1970 stp_port_disable(sp
);
1973 sp
= ofport
->stp_port
= stp_get_port(ofproto
->stp
, s
->port_num
);
1974 stp_port_enable(sp
);
1976 stp_port_set_aux(sp
, ofport
);
1977 stp_port_set_priority(sp
, s
->priority
);
1978 stp_port_set_path_cost(sp
, s
->path_cost
);
1980 update_stp_port_state(ofport
);
1986 get_stp_port_status(struct ofport
*ofport_
,
1987 struct ofproto_port_stp_status
*s
)
1989 struct ofport_dpif
*ofport
= ofport_dpif_cast(ofport_
);
1990 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
1991 struct stp_port
*sp
= ofport
->stp_port
;
1993 if (!ofproto
->stp
|| !sp
) {
1999 s
->port_id
= stp_port_get_id(sp
);
2000 s
->state
= stp_port_get_state(sp
);
2001 s
->sec_in_state
= (time_msec() - ofport
->stp_state_entered
) / 1000;
2002 s
->role
= stp_port_get_role(sp
);
2003 stp_port_get_counts(sp
, &s
->tx_count
, &s
->rx_count
, &s
->error_count
);
2009 stp_run(struct ofproto_dpif
*ofproto
)
2012 long long int now
= time_msec();
2013 long long int elapsed
= now
- ofproto
->stp_last_tick
;
2014 struct stp_port
*sp
;
2017 stp_tick(ofproto
->stp
, MIN(INT_MAX
, elapsed
));
2018 ofproto
->stp_last_tick
= now
;
2020 while (stp_get_changed_port(ofproto
->stp
, &sp
)) {
2021 struct ofport_dpif
*ofport
= stp_port_get_aux(sp
);
2024 update_stp_port_state(ofport
);
2028 if (stp_check_and_reset_fdb_flush(ofproto
->stp
)) {
2029 mac_learning_flush(ofproto
->ml
, &ofproto
->backer
->revalidate_set
);
2035 stp_wait(struct ofproto_dpif
*ofproto
)
2038 poll_timer_wait(1000);
2042 /* Returns true if STP should process 'flow'. */
2044 stp_should_process_flow(const struct flow
*flow
)
2046 return eth_addr_equals(flow
->dl_dst
, eth_addr_stp
);
2050 stp_process_packet(const struct ofport_dpif
*ofport
,
2051 const struct ofpbuf
*packet
)
2053 struct ofpbuf payload
= *packet
;
2054 struct eth_header
*eth
= payload
.data
;
2055 struct stp_port
*sp
= ofport
->stp_port
;
2057 /* Sink packets on ports that have STP disabled when the bridge has
2059 if (!sp
|| stp_port_get_state(sp
) == STP_DISABLED
) {
2063 /* Trim off padding on payload. */
2064 if (payload
.size
> ntohs(eth
->eth_type
) + ETH_HEADER_LEN
) {
2065 payload
.size
= ntohs(eth
->eth_type
) + ETH_HEADER_LEN
;
2068 if (ofpbuf_try_pull(&payload
, ETH_HEADER_LEN
+ LLC_HEADER_LEN
)) {
2069 stp_received_bpdu(sp
, payload
.data
, payload
.size
);
2073 static struct priority_to_dscp
*
2074 get_priority(const struct ofport_dpif
*ofport
, uint32_t priority
)
2076 struct priority_to_dscp
*pdscp
;
2079 hash
= hash_int(priority
, 0);
2080 HMAP_FOR_EACH_IN_BUCKET (pdscp
, hmap_node
, hash
, &ofport
->priorities
) {
2081 if (pdscp
->priority
== priority
) {
2089 ofport_clear_priorities(struct ofport_dpif
*ofport
)
2091 struct priority_to_dscp
*pdscp
, *next
;
2093 HMAP_FOR_EACH_SAFE (pdscp
, next
, hmap_node
, &ofport
->priorities
) {
2094 hmap_remove(&ofport
->priorities
, &pdscp
->hmap_node
);
2100 set_queues(struct ofport
*ofport_
,
2101 const struct ofproto_port_queue
*qdscp_list
,
2104 struct ofport_dpif
*ofport
= ofport_dpif_cast(ofport_
);
2105 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
2106 struct hmap
new = HMAP_INITIALIZER(&new);
2109 for (i
= 0; i
< n_qdscp
; i
++) {
2110 struct priority_to_dscp
*pdscp
;
2114 dscp
= (qdscp_list
[i
].dscp
<< 2) & IP_DSCP_MASK
;
2115 if (dpif_queue_to_priority(ofproto
->backer
->dpif
, qdscp_list
[i
].queue
,
2120 pdscp
= get_priority(ofport
, priority
);
2122 hmap_remove(&ofport
->priorities
, &pdscp
->hmap_node
);
2124 pdscp
= xmalloc(sizeof *pdscp
);
2125 pdscp
->priority
= priority
;
2127 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2130 if (pdscp
->dscp
!= dscp
) {
2132 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2135 hmap_insert(&new, &pdscp
->hmap_node
, hash_int(pdscp
->priority
, 0));
2138 if (!hmap_is_empty(&ofport
->priorities
)) {
2139 ofport_clear_priorities(ofport
);
2140 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2143 hmap_swap(&new, &ofport
->priorities
);
2151 /* Expires all MAC learning entries associated with 'bundle' and forces its
2152 * ofproto to revalidate every flow.
2154 * Normally MAC learning entries are removed only from the ofproto associated
2155 * with 'bundle', but if 'all_ofprotos' is true, then the MAC learning entries
2156 * are removed from every ofproto. When patch ports and SLB bonds are in use
2157 * and a VM migration happens and the gratuitous ARPs are somehow lost, this
2158 * avoids a MAC_ENTRY_IDLE_TIME delay before the migrated VM can communicate
2159 * with the host from which it migrated. */
2161 bundle_flush_macs(struct ofbundle
*bundle
, bool all_ofprotos
)
2163 struct ofproto_dpif
*ofproto
= bundle
->ofproto
;
2164 struct mac_learning
*ml
= ofproto
->ml
;
2165 struct mac_entry
*mac
, *next_mac
;
2167 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2168 LIST_FOR_EACH_SAFE (mac
, next_mac
, lru_node
, &ml
->lrus
) {
2169 if (mac
->port
.p
== bundle
) {
2171 struct ofproto_dpif
*o
;
2173 HMAP_FOR_EACH (o
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
2175 struct mac_entry
*e
;
2177 e
= mac_learning_lookup(o
->ml
, mac
->mac
, mac
->vlan
,
2180 mac_learning_expire(o
->ml
, e
);
2186 mac_learning_expire(ml
, mac
);
2191 static struct ofbundle
*
2192 bundle_lookup(const struct ofproto_dpif
*ofproto
, void *aux
)
2194 struct ofbundle
*bundle
;
2196 HMAP_FOR_EACH_IN_BUCKET (bundle
, hmap_node
, hash_pointer(aux
, 0),
2197 &ofproto
->bundles
) {
2198 if (bundle
->aux
== aux
) {
2205 /* Looks up each of the 'n_auxes' pointers in 'auxes' as bundles and adds the
2206 * ones that are found to 'bundles'. */
2208 bundle_lookup_multiple(struct ofproto_dpif
*ofproto
,
2209 void **auxes
, size_t n_auxes
,
2210 struct hmapx
*bundles
)
2214 hmapx_init(bundles
);
2215 for (i
= 0; i
< n_auxes
; i
++) {
2216 struct ofbundle
*bundle
= bundle_lookup(ofproto
, auxes
[i
]);
2218 hmapx_add(bundles
, bundle
);
2224 bundle_update(struct ofbundle
*bundle
)
2226 struct ofport_dpif
*port
;
2228 bundle
->floodable
= true;
2229 LIST_FOR_EACH (port
, bundle_node
, &bundle
->ports
) {
2230 if (port
->up
.pp
.config
& OFPUTIL_PC_NO_FLOOD
2231 || !stp_forward_in_state(port
->stp_state
)) {
2232 bundle
->floodable
= false;
2239 bundle_del_port(struct ofport_dpif
*port
)
2241 struct ofbundle
*bundle
= port
->bundle
;
2243 bundle
->ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2245 list_remove(&port
->bundle_node
);
2246 port
->bundle
= NULL
;
2249 lacp_slave_unregister(bundle
->lacp
, port
);
2252 bond_slave_unregister(bundle
->bond
, port
);
2255 bundle_update(bundle
);
2259 bundle_add_port(struct ofbundle
*bundle
, uint32_t ofp_port
,
2260 struct lacp_slave_settings
*lacp
)
2262 struct ofport_dpif
*port
;
2264 port
= get_ofp_port(bundle
->ofproto
, ofp_port
);
2269 if (port
->bundle
!= bundle
) {
2270 bundle
->ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2272 bundle_del_port(port
);
2275 port
->bundle
= bundle
;
2276 list_push_back(&bundle
->ports
, &port
->bundle_node
);
2277 if (port
->up
.pp
.config
& OFPUTIL_PC_NO_FLOOD
2278 || !stp_forward_in_state(port
->stp_state
)) {
2279 bundle
->floodable
= false;
2283 bundle
->ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2284 lacp_slave_register(bundle
->lacp
, port
, lacp
);
2291 bundle_destroy(struct ofbundle
*bundle
)
2293 struct ofproto_dpif
*ofproto
;
2294 struct ofport_dpif
*port
, *next_port
;
2301 ofproto
= bundle
->ofproto
;
2302 for (i
= 0; i
< MAX_MIRRORS
; i
++) {
2303 struct ofmirror
*m
= ofproto
->mirrors
[i
];
2305 if (m
->out
== bundle
) {
2307 } else if (hmapx_find_and_delete(&m
->srcs
, bundle
)
2308 || hmapx_find_and_delete(&m
->dsts
, bundle
)) {
2309 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2314 LIST_FOR_EACH_SAFE (port
, next_port
, bundle_node
, &bundle
->ports
) {
2315 bundle_del_port(port
);
2318 bundle_flush_macs(bundle
, true);
2319 hmap_remove(&ofproto
->bundles
, &bundle
->hmap_node
);
2321 free(bundle
->trunks
);
2322 lacp_destroy(bundle
->lacp
);
2323 bond_destroy(bundle
->bond
);
2328 bundle_set(struct ofproto
*ofproto_
, void *aux
,
2329 const struct ofproto_bundle_settings
*s
)
2331 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
2332 bool need_flush
= false;
2333 struct ofport_dpif
*port
;
2334 struct ofbundle
*bundle
;
2335 unsigned long *trunks
;
2341 bundle_destroy(bundle_lookup(ofproto
, aux
));
2345 ovs_assert(s
->n_slaves
== 1 || s
->bond
!= NULL
);
2346 ovs_assert((s
->lacp
!= NULL
) == (s
->lacp_slaves
!= NULL
));
2348 bundle
= bundle_lookup(ofproto
, aux
);
2350 bundle
= xmalloc(sizeof *bundle
);
2352 bundle
->ofproto
= ofproto
;
2353 hmap_insert(&ofproto
->bundles
, &bundle
->hmap_node
,
2354 hash_pointer(aux
, 0));
2356 bundle
->name
= NULL
;
2358 list_init(&bundle
->ports
);
2359 bundle
->vlan_mode
= PORT_VLAN_TRUNK
;
2361 bundle
->trunks
= NULL
;
2362 bundle
->use_priority_tags
= s
->use_priority_tags
;
2363 bundle
->lacp
= NULL
;
2364 bundle
->bond
= NULL
;
2366 bundle
->floodable
= true;
2368 bundle
->src_mirrors
= 0;
2369 bundle
->dst_mirrors
= 0;
2370 bundle
->mirror_out
= 0;
2373 if (!bundle
->name
|| strcmp(s
->name
, bundle
->name
)) {
2375 bundle
->name
= xstrdup(s
->name
);
2380 if (!bundle
->lacp
) {
2381 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2382 bundle
->lacp
= lacp_create();
2384 lacp_configure(bundle
->lacp
, s
->lacp
);
2386 lacp_destroy(bundle
->lacp
);
2387 bundle
->lacp
= NULL
;
2390 /* Update set of ports. */
2392 for (i
= 0; i
< s
->n_slaves
; i
++) {
2393 if (!bundle_add_port(bundle
, s
->slaves
[i
],
2394 s
->lacp
? &s
->lacp_slaves
[i
] : NULL
)) {
2398 if (!ok
|| list_size(&bundle
->ports
) != s
->n_slaves
) {
2399 struct ofport_dpif
*next_port
;
2401 LIST_FOR_EACH_SAFE (port
, next_port
, bundle_node
, &bundle
->ports
) {
2402 for (i
= 0; i
< s
->n_slaves
; i
++) {
2403 if (s
->slaves
[i
] == port
->up
.ofp_port
) {
2408 bundle_del_port(port
);
2412 ovs_assert(list_size(&bundle
->ports
) <= s
->n_slaves
);
2414 if (list_is_empty(&bundle
->ports
)) {
2415 bundle_destroy(bundle
);
2419 /* Set VLAN tagging mode */
2420 if (s
->vlan_mode
!= bundle
->vlan_mode
2421 || s
->use_priority_tags
!= bundle
->use_priority_tags
) {
2422 bundle
->vlan_mode
= s
->vlan_mode
;
2423 bundle
->use_priority_tags
= s
->use_priority_tags
;
2428 vlan
= (s
->vlan_mode
== PORT_VLAN_TRUNK
? -1
2429 : s
->vlan
>= 0 && s
->vlan
<= 4095 ? s
->vlan
2431 if (vlan
!= bundle
->vlan
) {
2432 bundle
->vlan
= vlan
;
2436 /* Get trunked VLANs. */
2437 switch (s
->vlan_mode
) {
2438 case PORT_VLAN_ACCESS
:
2442 case PORT_VLAN_TRUNK
:
2443 trunks
= CONST_CAST(unsigned long *, s
->trunks
);
2446 case PORT_VLAN_NATIVE_UNTAGGED
:
2447 case PORT_VLAN_NATIVE_TAGGED
:
2448 if (vlan
!= 0 && (!s
->trunks
2449 || !bitmap_is_set(s
->trunks
, vlan
)
2450 || bitmap_is_set(s
->trunks
, 0))) {
2451 /* Force trunking the native VLAN and prohibit trunking VLAN 0. */
2453 trunks
= bitmap_clone(s
->trunks
, 4096);
2455 trunks
= bitmap_allocate1(4096);
2457 bitmap_set1(trunks
, vlan
);
2458 bitmap_set0(trunks
, 0);
2460 trunks
= CONST_CAST(unsigned long *, s
->trunks
);
2467 if (!vlan_bitmap_equal(trunks
, bundle
->trunks
)) {
2468 free(bundle
->trunks
);
2469 if (trunks
== s
->trunks
) {
2470 bundle
->trunks
= vlan_bitmap_clone(trunks
);
2472 bundle
->trunks
= trunks
;
2477 if (trunks
!= s
->trunks
) {
2482 if (!list_is_short(&bundle
->ports
)) {
2483 bundle
->ofproto
->has_bonded_bundles
= true;
2485 if (bond_reconfigure(bundle
->bond
, s
->bond
)) {
2486 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2489 bundle
->bond
= bond_create(s
->bond
);
2490 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2493 LIST_FOR_EACH (port
, bundle_node
, &bundle
->ports
) {
2494 bond_slave_register(bundle
->bond
, port
, port
->up
.netdev
);
2497 bond_destroy(bundle
->bond
);
2498 bundle
->bond
= NULL
;
2501 /* If we changed something that would affect MAC learning, un-learn
2502 * everything on this port and force flow revalidation. */
2504 bundle_flush_macs(bundle
, false);
2511 bundle_remove(struct ofport
*port_
)
2513 struct ofport_dpif
*port
= ofport_dpif_cast(port_
);
2514 struct ofbundle
*bundle
= port
->bundle
;
2517 bundle_del_port(port
);
2518 if (list_is_empty(&bundle
->ports
)) {
2519 bundle_destroy(bundle
);
2520 } else if (list_is_short(&bundle
->ports
)) {
2521 bond_destroy(bundle
->bond
);
2522 bundle
->bond
= NULL
;
2528 send_pdu_cb(void *port_
, const void *pdu
, size_t pdu_size
)
2530 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 10);
2531 struct ofport_dpif
*port
= port_
;
2532 uint8_t ea
[ETH_ADDR_LEN
];
2535 error
= netdev_get_etheraddr(port
->up
.netdev
, ea
);
2537 struct ofpbuf packet
;
2540 ofpbuf_init(&packet
, 0);
2541 packet_pdu
= eth_compose(&packet
, eth_addr_lacp
, ea
, ETH_TYPE_LACP
,
2543 memcpy(packet_pdu
, pdu
, pdu_size
);
2545 send_packet(port
, &packet
);
2546 ofpbuf_uninit(&packet
);
2548 VLOG_ERR_RL(&rl
, "port %s: cannot obtain Ethernet address of iface "
2549 "%s (%s)", port
->bundle
->name
,
2550 netdev_get_name(port
->up
.netdev
), strerror(error
));
2555 bundle_send_learning_packets(struct ofbundle
*bundle
)
2557 struct ofproto_dpif
*ofproto
= bundle
->ofproto
;
2558 int error
, n_packets
, n_errors
;
2559 struct mac_entry
*e
;
2561 error
= n_packets
= n_errors
= 0;
2562 LIST_FOR_EACH (e
, lru_node
, &ofproto
->ml
->lrus
) {
2563 if (e
->port
.p
!= bundle
) {
2564 struct ofpbuf
*learning_packet
;
2565 struct ofport_dpif
*port
;
2569 /* The assignment to "port" is unnecessary but makes "grep"ing for
2570 * struct ofport_dpif more effective. */
2571 learning_packet
= bond_compose_learning_packet(bundle
->bond
,
2575 ret
= send_packet(port
, learning_packet
);
2576 ofpbuf_delete(learning_packet
);
2586 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
2587 VLOG_WARN_RL(&rl
, "bond %s: %d errors sending %d gratuitous learning "
2588 "packets, last error was: %s",
2589 bundle
->name
, n_errors
, n_packets
, strerror(error
));
2591 VLOG_DBG("bond %s: sent %d gratuitous learning packets",
2592 bundle
->name
, n_packets
);
2597 bundle_run(struct ofbundle
*bundle
)
2600 lacp_run(bundle
->lacp
, send_pdu_cb
);
2603 struct ofport_dpif
*port
;
2605 LIST_FOR_EACH (port
, bundle_node
, &bundle
->ports
) {
2606 bond_slave_set_may_enable(bundle
->bond
, port
, port
->may_enable
);
2609 bond_run(bundle
->bond
, &bundle
->ofproto
->backer
->revalidate_set
,
2610 lacp_status(bundle
->lacp
));
2611 if (bond_should_send_learning_packets(bundle
->bond
)) {
2612 bundle_send_learning_packets(bundle
);
2618 bundle_wait(struct ofbundle
*bundle
)
2621 lacp_wait(bundle
->lacp
);
2624 bond_wait(bundle
->bond
);
2631 mirror_scan(struct ofproto_dpif
*ofproto
)
2635 for (idx
= 0; idx
< MAX_MIRRORS
; idx
++) {
2636 if (!ofproto
->mirrors
[idx
]) {
2643 static struct ofmirror
*
2644 mirror_lookup(struct ofproto_dpif
*ofproto
, void *aux
)
2648 for (i
= 0; i
< MAX_MIRRORS
; i
++) {
2649 struct ofmirror
*mirror
= ofproto
->mirrors
[i
];
2650 if (mirror
&& mirror
->aux
== aux
) {
2658 /* Update the 'dup_mirrors' member of each of the ofmirrors in 'ofproto'. */
2660 mirror_update_dups(struct ofproto_dpif
*ofproto
)
2664 for (i
= 0; i
< MAX_MIRRORS
; i
++) {
2665 struct ofmirror
*m
= ofproto
->mirrors
[i
];
2668 m
->dup_mirrors
= MIRROR_MASK_C(1) << i
;
2672 for (i
= 0; i
< MAX_MIRRORS
; i
++) {
2673 struct ofmirror
*m1
= ofproto
->mirrors
[i
];
2680 for (j
= i
+ 1; j
< MAX_MIRRORS
; j
++) {
2681 struct ofmirror
*m2
= ofproto
->mirrors
[j
];
2683 if (m2
&& m1
->out
== m2
->out
&& m1
->out_vlan
== m2
->out_vlan
) {
2684 m1
->dup_mirrors
|= MIRROR_MASK_C(1) << j
;
2685 m2
->dup_mirrors
|= m1
->dup_mirrors
;
2692 mirror_set(struct ofproto
*ofproto_
, void *aux
,
2693 const struct ofproto_mirror_settings
*s
)
2695 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
2696 mirror_mask_t mirror_bit
;
2697 struct ofbundle
*bundle
;
2698 struct ofmirror
*mirror
;
2699 struct ofbundle
*out
;
2700 struct hmapx srcs
; /* Contains "struct ofbundle *"s. */
2701 struct hmapx dsts
; /* Contains "struct ofbundle *"s. */
2704 mirror
= mirror_lookup(ofproto
, aux
);
2706 mirror_destroy(mirror
);
2712 idx
= mirror_scan(ofproto
);
2714 VLOG_WARN("bridge %s: maximum of %d port mirrors reached, "
2716 ofproto
->up
.name
, MAX_MIRRORS
, s
->name
);
2720 mirror
= ofproto
->mirrors
[idx
] = xzalloc(sizeof *mirror
);
2721 mirror
->ofproto
= ofproto
;
2724 mirror
->out_vlan
= -1;
2725 mirror
->name
= NULL
;
2728 if (!mirror
->name
|| strcmp(s
->name
, mirror
->name
)) {
2730 mirror
->name
= xstrdup(s
->name
);
2733 /* Get the new configuration. */
2734 if (s
->out_bundle
) {
2735 out
= bundle_lookup(ofproto
, s
->out_bundle
);
2737 mirror_destroy(mirror
);
2743 out_vlan
= s
->out_vlan
;
2745 bundle_lookup_multiple(ofproto
, s
->srcs
, s
->n_srcs
, &srcs
);
2746 bundle_lookup_multiple(ofproto
, s
->dsts
, s
->n_dsts
, &dsts
);
2748 /* If the configuration has not changed, do nothing. */
2749 if (hmapx_equals(&srcs
, &mirror
->srcs
)
2750 && hmapx_equals(&dsts
, &mirror
->dsts
)
2751 && vlan_bitmap_equal(mirror
->vlans
, s
->src_vlans
)
2752 && mirror
->out
== out
2753 && mirror
->out_vlan
== out_vlan
)
2755 hmapx_destroy(&srcs
);
2756 hmapx_destroy(&dsts
);
2760 hmapx_swap(&srcs
, &mirror
->srcs
);
2761 hmapx_destroy(&srcs
);
2763 hmapx_swap(&dsts
, &mirror
->dsts
);
2764 hmapx_destroy(&dsts
);
2766 free(mirror
->vlans
);
2767 mirror
->vlans
= vlan_bitmap_clone(s
->src_vlans
);
2770 mirror
->out_vlan
= out_vlan
;
2772 /* Update bundles. */
2773 mirror_bit
= MIRROR_MASK_C(1) << mirror
->idx
;
2774 HMAP_FOR_EACH (bundle
, hmap_node
, &mirror
->ofproto
->bundles
) {
2775 if (hmapx_contains(&mirror
->srcs
, bundle
)) {
2776 bundle
->src_mirrors
|= mirror_bit
;
2778 bundle
->src_mirrors
&= ~mirror_bit
;
2781 if (hmapx_contains(&mirror
->dsts
, bundle
)) {
2782 bundle
->dst_mirrors
|= mirror_bit
;
2784 bundle
->dst_mirrors
&= ~mirror_bit
;
2787 if (mirror
->out
== bundle
) {
2788 bundle
->mirror_out
|= mirror_bit
;
2790 bundle
->mirror_out
&= ~mirror_bit
;
2794 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2795 ofproto
->has_mirrors
= true;
2796 mac_learning_flush(ofproto
->ml
,
2797 &ofproto
->backer
->revalidate_set
);
2798 mirror_update_dups(ofproto
);
2804 mirror_destroy(struct ofmirror
*mirror
)
2806 struct ofproto_dpif
*ofproto
;
2807 mirror_mask_t mirror_bit
;
2808 struct ofbundle
*bundle
;
2815 ofproto
= mirror
->ofproto
;
2816 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2817 mac_learning_flush(ofproto
->ml
, &ofproto
->backer
->revalidate_set
);
2819 mirror_bit
= MIRROR_MASK_C(1) << mirror
->idx
;
2820 HMAP_FOR_EACH (bundle
, hmap_node
, &ofproto
->bundles
) {
2821 bundle
->src_mirrors
&= ~mirror_bit
;
2822 bundle
->dst_mirrors
&= ~mirror_bit
;
2823 bundle
->mirror_out
&= ~mirror_bit
;
2826 hmapx_destroy(&mirror
->srcs
);
2827 hmapx_destroy(&mirror
->dsts
);
2828 free(mirror
->vlans
);
2830 ofproto
->mirrors
[mirror
->idx
] = NULL
;
2834 mirror_update_dups(ofproto
);
2836 ofproto
->has_mirrors
= false;
2837 for (i
= 0; i
< MAX_MIRRORS
; i
++) {
2838 if (ofproto
->mirrors
[i
]) {
2839 ofproto
->has_mirrors
= true;
2846 mirror_get_stats(struct ofproto
*ofproto_
, void *aux
,
2847 uint64_t *packets
, uint64_t *bytes
)
2849 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
2850 struct ofmirror
*mirror
= mirror_lookup(ofproto
, aux
);
2853 *packets
= *bytes
= UINT64_MAX
;
2857 *packets
= mirror
->packet_count
;
2858 *bytes
= mirror
->byte_count
;
2864 set_flood_vlans(struct ofproto
*ofproto_
, unsigned long *flood_vlans
)
2866 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
2867 if (mac_learning_set_flood_vlans(ofproto
->ml
, flood_vlans
)) {
2868 mac_learning_flush(ofproto
->ml
, &ofproto
->backer
->revalidate_set
);
2874 is_mirror_output_bundle(const struct ofproto
*ofproto_
, void *aux
)
2876 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
2877 struct ofbundle
*bundle
= bundle_lookup(ofproto
, aux
);
2878 return bundle
&& bundle
->mirror_out
!= 0;
2882 forward_bpdu_changed(struct ofproto
*ofproto_
)
2884 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
2885 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
2889 set_mac_table_config(struct ofproto
*ofproto_
, unsigned int idle_time
,
2892 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
2893 mac_learning_set_idle_time(ofproto
->ml
, idle_time
);
2894 mac_learning_set_max_entries(ofproto
->ml
, max_entries
);
2899 static struct ofport_dpif
*
2900 get_ofp_port(const struct ofproto_dpif
*ofproto
, uint16_t ofp_port
)
2902 struct ofport
*ofport
= ofproto_get_port(&ofproto
->up
, ofp_port
);
2903 return ofport
? ofport_dpif_cast(ofport
) : NULL
;
2906 static struct ofport_dpif
*
2907 get_odp_port(const struct ofproto_dpif
*ofproto
, uint32_t odp_port
)
2909 struct ofport_dpif
*port
= odp_port_to_ofport(ofproto
->backer
, odp_port
);
2910 return port
&& &ofproto
->up
== port
->up
.ofproto
? port
: NULL
;
2914 ofproto_port_from_dpif_port(struct ofproto_dpif
*ofproto
,
2915 struct ofproto_port
*ofproto_port
,
2916 struct dpif_port
*dpif_port
)
2918 ofproto_port
->name
= dpif_port
->name
;
2919 ofproto_port
->type
= dpif_port
->type
;
2920 ofproto_port
->ofp_port
= odp_port_to_ofp_port(ofproto
, dpif_port
->port_no
);
2923 static struct ofport_dpif
*
2924 ofport_get_peer(const struct ofport_dpif
*ofport_dpif
)
2926 const struct ofproto_dpif
*ofproto
;
2929 peer
= netdev_vport_patch_peer(ofport_dpif
->up
.netdev
);
2934 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
2935 struct ofport
*ofport
;
2937 ofport
= shash_find_data(&ofproto
->up
.port_by_name
, peer
);
2938 if (ofport
&& ofport
->ofproto
->ofproto_class
== &ofproto_dpif_class
) {
2939 return ofport_dpif_cast(ofport
);
2946 port_run_fast(struct ofport_dpif
*ofport
)
2948 if (ofport
->cfm
&& cfm_should_send_ccm(ofport
->cfm
)) {
2949 struct ofpbuf packet
;
2951 ofpbuf_init(&packet
, 0);
2952 cfm_compose_ccm(ofport
->cfm
, &packet
, ofport
->up
.pp
.hw_addr
);
2953 send_packet(ofport
, &packet
);
2954 ofpbuf_uninit(&packet
);
2959 port_run(struct ofport_dpif
*ofport
)
2961 long long int carrier_seq
= netdev_get_carrier_resets(ofport
->up
.netdev
);
2962 bool carrier_changed
= carrier_seq
!= ofport
->carrier_seq
;
2963 bool enable
= netdev_get_carrier(ofport
->up
.netdev
);
2965 ofport
->carrier_seq
= carrier_seq
;
2967 port_run_fast(ofport
);
2969 if (ofport
->tnl_port
2970 && tnl_port_reconfigure(&ofport
->up
, ofport
->odp_port
,
2971 &ofport
->tnl_port
)) {
2972 ofproto_dpif_cast(ofport
->up
.ofproto
)->backer
->need_revalidate
= true;
2976 int cfm_opup
= cfm_get_opup(ofport
->cfm
);
2978 cfm_run(ofport
->cfm
);
2979 enable
= enable
&& !cfm_get_fault(ofport
->cfm
);
2981 if (cfm_opup
>= 0) {
2982 enable
= enable
&& cfm_opup
;
2986 if (ofport
->bundle
) {
2987 enable
= enable
&& lacp_slave_may_enable(ofport
->bundle
->lacp
, ofport
);
2988 if (carrier_changed
) {
2989 lacp_slave_carrier_changed(ofport
->bundle
->lacp
, ofport
);
2993 if (ofport
->may_enable
!= enable
) {
2994 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
2996 if (ofproto
->has_bundle_action
) {
2997 ofproto
->backer
->need_revalidate
= REV_PORT_TOGGLED
;
3001 ofport
->may_enable
= enable
;
3005 port_wait(struct ofport_dpif
*ofport
)
3008 cfm_wait(ofport
->cfm
);
3013 port_query_by_name(const struct ofproto
*ofproto_
, const char *devname
,
3014 struct ofproto_port
*ofproto_port
)
3016 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
3017 struct dpif_port dpif_port
;
3020 if (sset_contains(&ofproto
->ghost_ports
, devname
)) {
3021 const char *type
= netdev_get_type_from_name(devname
);
3023 /* We may be called before ofproto->up.port_by_name is populated with
3024 * the appropriate ofport. For this reason, we must get the name and
3025 * type from the netdev layer directly. */
3027 const struct ofport
*ofport
;
3029 ofport
= shash_find_data(&ofproto
->up
.port_by_name
, devname
);
3030 ofproto_port
->ofp_port
= ofport
? ofport
->ofp_port
: OFPP_NONE
;
3031 ofproto_port
->name
= xstrdup(devname
);
3032 ofproto_port
->type
= xstrdup(type
);
3038 if (!sset_contains(&ofproto
->ports
, devname
)) {
3041 error
= dpif_port_query_by_name(ofproto
->backer
->dpif
,
3042 devname
, &dpif_port
);
3044 ofproto_port_from_dpif_port(ofproto
, ofproto_port
, &dpif_port
);
3050 port_add(struct ofproto
*ofproto_
, struct netdev
*netdev
)
3052 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
3053 const char *dp_port_name
= netdev_vport_get_dpif_port(netdev
);
3054 const char *devname
= netdev_get_name(netdev
);
3056 if (netdev_vport_is_patch(netdev
)) {
3057 sset_add(&ofproto
->ghost_ports
, netdev_get_name(netdev
));
3061 if (!dpif_port_exists(ofproto
->backer
->dpif
, dp_port_name
)) {
3062 uint32_t port_no
= UINT32_MAX
;
3065 error
= dpif_port_add(ofproto
->backer
->dpif
, netdev
, &port_no
);
3069 if (netdev_get_tunnel_config(netdev
)) {
3070 simap_put(&ofproto
->backer
->tnl_backers
, dp_port_name
, port_no
);
3074 if (netdev_get_tunnel_config(netdev
)) {
3075 sset_add(&ofproto
->ghost_ports
, devname
);
3077 sset_add(&ofproto
->ports
, devname
);
3083 port_del(struct ofproto
*ofproto_
, uint16_t ofp_port
)
3085 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
3086 struct ofport_dpif
*ofport
= get_ofp_port(ofproto
, ofp_port
);
3093 sset_find_and_delete(&ofproto
->ghost_ports
,
3094 netdev_get_name(ofport
->up
.netdev
));
3095 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
3096 if (!ofport
->tnl_port
) {
3097 error
= dpif_port_del(ofproto
->backer
->dpif
, ofport
->odp_port
);
3099 /* The caller is going to close ofport->up.netdev. If this is a
3100 * bonded port, then the bond is using that netdev, so remove it
3101 * from the bond. The client will need to reconfigure everything
3102 * after deleting ports, so then the slave will get re-added. */
3103 bundle_remove(&ofport
->up
);
3110 port_get_stats(const struct ofport
*ofport_
, struct netdev_stats
*stats
)
3112 struct ofport_dpif
*ofport
= ofport_dpif_cast(ofport_
);
3115 error
= netdev_get_stats(ofport
->up
.netdev
, stats
);
3117 if (!error
&& ofport_
->ofp_port
== OFPP_LOCAL
) {
3118 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
3120 /* ofproto->stats.tx_packets represents packets that we created
3121 * internally and sent to some port (e.g. packets sent with
3122 * send_packet()). Account for them as if they had come from
3123 * OFPP_LOCAL and got forwarded. */
3125 if (stats
->rx_packets
!= UINT64_MAX
) {
3126 stats
->rx_packets
+= ofproto
->stats
.tx_packets
;
3129 if (stats
->rx_bytes
!= UINT64_MAX
) {
3130 stats
->rx_bytes
+= ofproto
->stats
.tx_bytes
;
3133 /* ofproto->stats.rx_packets represents packets that were received on
3134 * some port and we processed internally and dropped (e.g. STP).
3135 * Account for them as if they had been forwarded to OFPP_LOCAL. */
3137 if (stats
->tx_packets
!= UINT64_MAX
) {
3138 stats
->tx_packets
+= ofproto
->stats
.rx_packets
;
3141 if (stats
->tx_bytes
!= UINT64_MAX
) {
3142 stats
->tx_bytes
+= ofproto
->stats
.rx_bytes
;
3149 /* Account packets for LOCAL port. */
3151 ofproto_update_local_port_stats(const struct ofproto
*ofproto_
,
3152 size_t tx_size
, size_t rx_size
)
3154 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
3157 ofproto
->stats
.rx_packets
++;
3158 ofproto
->stats
.rx_bytes
+= rx_size
;
3161 ofproto
->stats
.tx_packets
++;
3162 ofproto
->stats
.tx_bytes
+= tx_size
;
3166 struct port_dump_state
{
3171 struct ofproto_port port
;
3176 port_dump_start(const struct ofproto
*ofproto_ OVS_UNUSED
, void **statep
)
3178 *statep
= xzalloc(sizeof(struct port_dump_state
));
3183 port_dump_next(const struct ofproto
*ofproto_
, void *state_
,
3184 struct ofproto_port
*port
)
3186 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
3187 struct port_dump_state
*state
= state_
;
3188 const struct sset
*sset
;
3189 struct sset_node
*node
;
3191 if (state
->has_port
) {
3192 ofproto_port_destroy(&state
->port
);
3193 state
->has_port
= false;
3195 sset
= state
->ghost
? &ofproto
->ghost_ports
: &ofproto
->ports
;
3196 while ((node
= sset_at_position(sset
, &state
->bucket
, &state
->offset
))) {
3199 error
= port_query_by_name(ofproto_
, node
->name
, &state
->port
);
3201 *port
= state
->port
;
3202 state
->has_port
= true;
3204 } else if (error
!= ENODEV
) {
3209 if (!state
->ghost
) {
3210 state
->ghost
= true;
3213 return port_dump_next(ofproto_
, state_
, port
);
3220 port_dump_done(const struct ofproto
*ofproto_ OVS_UNUSED
, void *state_
)
3222 struct port_dump_state
*state
= state_
;
3224 if (state
->has_port
) {
3225 ofproto_port_destroy(&state
->port
);
3232 port_poll(const struct ofproto
*ofproto_
, char **devnamep
)
3234 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
3236 if (ofproto
->port_poll_errno
) {
3237 int error
= ofproto
->port_poll_errno
;
3238 ofproto
->port_poll_errno
= 0;
3242 if (sset_is_empty(&ofproto
->port_poll_set
)) {
3246 *devnamep
= sset_pop(&ofproto
->port_poll_set
);
3251 port_poll_wait(const struct ofproto
*ofproto_
)
3253 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
3254 dpif_port_poll_wait(ofproto
->backer
->dpif
);
3258 port_is_lacp_current(const struct ofport
*ofport_
)
3260 const struct ofport_dpif
*ofport
= ofport_dpif_cast(ofport_
);
3261 return (ofport
->bundle
&& ofport
->bundle
->lacp
3262 ? lacp_slave_is_current(ofport
->bundle
->lacp
, ofport
)
3266 /* Upcall handling. */
3268 /* Flow miss batching.
3270 * Some dpifs implement operations faster when you hand them off in a batch.
3271 * To allow batching, "struct flow_miss" queues the dpif-related work needed
3272 * for a given flow. Each "struct flow_miss" corresponds to sending one or
3273 * more packets, plus possibly installing the flow in the dpif.
3275 * So far we only batch the operations that affect flow setup time the most.
3276 * It's possible to batch more than that, but the benefit might be minimal. */
3278 struct hmap_node hmap_node
;
3279 struct ofproto_dpif
*ofproto
;
3281 enum odp_key_fitness key_fitness
;
3282 const struct nlattr
*key
;
3284 struct initial_vals initial_vals
;
3285 struct list packets
;
3286 enum dpif_upcall_type upcall_type
;
3287 uint32_t odp_in_port
;
3290 struct flow_miss_op
{
3291 struct dpif_op dpif_op
;
3292 void *garbage
; /* Pointer to pass to free(), NULL if none. */
3293 uint64_t stub
[1024 / 8]; /* Temporary buffer. */
3296 /* Sends an OFPT_PACKET_IN message for 'packet' of type OFPR_NO_MATCH to each
3297 * OpenFlow controller as necessary according to their individual
3298 * configurations. */
3300 send_packet_in_miss(struct ofproto_dpif
*ofproto
, const struct ofpbuf
*packet
,
3301 const struct flow
*flow
)
3303 struct ofputil_packet_in pin
;
3305 pin
.packet
= packet
->data
;
3306 pin
.packet_len
= packet
->size
;
3307 pin
.reason
= OFPR_NO_MATCH
;
3308 pin
.controller_id
= 0;
3313 pin
.send_len
= 0; /* not used for flow table misses */
3315 flow_get_metadata(flow
, &pin
.fmd
);
3317 connmgr_send_packet_in(ofproto
->up
.connmgr
, &pin
);
3320 static enum slow_path_reason
3321 process_special(struct ofproto_dpif
*ofproto
, const struct flow
*flow
,
3322 const struct ofport_dpif
*ofport
, const struct ofpbuf
*packet
)
3326 } else if (ofport
->cfm
&& cfm_should_process_flow(ofport
->cfm
, flow
)) {
3328 cfm_process_heartbeat(ofport
->cfm
, packet
);
3331 } else if (ofport
->bundle
&& ofport
->bundle
->lacp
3332 && flow
->dl_type
== htons(ETH_TYPE_LACP
)) {
3334 lacp_process_packet(ofport
->bundle
->lacp
, ofport
, packet
);
3337 } else if (ofproto
->stp
&& stp_should_process_flow(flow
)) {
3339 stp_process_packet(ofport
, packet
);
3347 static struct flow_miss
*
3348 flow_miss_find(struct hmap
*todo
, const struct ofproto_dpif
*ofproto
,
3349 const struct flow
*flow
, uint32_t hash
)
3351 struct flow_miss
*miss
;
3353 HMAP_FOR_EACH_WITH_HASH (miss
, hmap_node
, hash
, todo
) {
3354 if (miss
->ofproto
== ofproto
&& flow_equal(&miss
->flow
, flow
)) {
3362 /* Partially Initializes 'op' as an "execute" operation for 'miss' and
3363 * 'packet'. The caller must initialize op->actions and op->actions_len. If
3364 * 'miss' is associated with a subfacet the caller must also initialize the
3365 * returned op->subfacet, and if anything needs to be freed after processing
3366 * the op, the caller must initialize op->garbage also. */
3368 init_flow_miss_execute_op(struct flow_miss
*miss
, struct ofpbuf
*packet
,
3369 struct flow_miss_op
*op
)
3371 if (miss
->flow
.vlan_tci
!= miss
->initial_vals
.vlan_tci
) {
3372 /* This packet was received on a VLAN splinter port. We
3373 * added a VLAN to the packet to make the packet resemble
3374 * the flow, but the actions were composed assuming that
3375 * the packet contained no VLAN. So, we must remove the
3376 * VLAN header from the packet before trying to execute the
3378 eth_pop_vlan(packet
);
3382 op
->dpif_op
.type
= DPIF_OP_EXECUTE
;
3383 op
->dpif_op
.u
.execute
.key
= miss
->key
;
3384 op
->dpif_op
.u
.execute
.key_len
= miss
->key_len
;
3385 op
->dpif_op
.u
.execute
.packet
= packet
;
3388 /* Helper for handle_flow_miss_without_facet() and
3389 * handle_flow_miss_with_facet(). */
3391 handle_flow_miss_common(struct rule_dpif
*rule
,
3392 struct ofpbuf
*packet
, const struct flow
*flow
)
3394 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
3396 ofproto
->n_matches
++;
3398 if (rule
->up
.cr
.priority
== FAIL_OPEN_PRIORITY
) {
3400 * Extra-special case for fail-open mode.
3402 * We are in fail-open mode and the packet matched the fail-open
3403 * rule, but we are connected to a controller too. We should send
3404 * the packet up to the controller in the hope that it will try to
3405 * set up a flow and thereby allow us to exit fail-open.
3407 * See the top-level comment in fail-open.c for more information.
3409 send_packet_in_miss(ofproto
, packet
, flow
);
3413 /* Figures out whether a flow that missed in 'ofproto', whose details are in
3414 * 'miss', is likely to be worth tracking in detail in userspace and (usually)
3415 * installing a datapath flow. The answer is usually "yes" (a return value of
3416 * true). However, for short flows the cost of bookkeeping is much higher than
3417 * the benefits, so when the datapath holds a large number of flows we impose
3418 * some heuristics to decide which flows are likely to be worth tracking. */
3420 flow_miss_should_make_facet(struct ofproto_dpif
*ofproto
,
3421 struct flow_miss
*miss
, uint32_t hash
)
3423 if (!ofproto
->governor
) {
3426 n_subfacets
= hmap_count(&ofproto
->subfacets
);
3427 if (n_subfacets
* 2 <= ofproto
->up
.flow_eviction_threshold
) {
3431 ofproto
->governor
= governor_create(ofproto
->up
.name
);
3434 return governor_should_install_flow(ofproto
->governor
, hash
,
3435 list_size(&miss
->packets
));
3438 /* Handles 'miss', which matches 'rule', without creating a facet or subfacet
3439 * or creating any datapath flow. May add an "execute" operation to 'ops' and
3440 * increment '*n_ops'. */
3442 handle_flow_miss_without_facet(struct flow_miss
*miss
,
3443 struct rule_dpif
*rule
,
3444 struct flow_miss_op
*ops
, size_t *n_ops
)
3446 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
3447 long long int now
= time_msec();
3448 struct action_xlate_ctx ctx
;
3449 struct ofpbuf
*packet
;
3451 LIST_FOR_EACH (packet
, list_node
, &miss
->packets
) {
3452 struct flow_miss_op
*op
= &ops
[*n_ops
];
3453 struct dpif_flow_stats stats
;
3454 struct ofpbuf odp_actions
;
3456 COVERAGE_INC(facet_suppress
);
3458 ofpbuf_use_stub(&odp_actions
, op
->stub
, sizeof op
->stub
);
3460 dpif_flow_stats_extract(&miss
->flow
, packet
, now
, &stats
);
3461 rule_credit_stats(rule
, &stats
);
3463 action_xlate_ctx_init(&ctx
, ofproto
, &miss
->flow
,
3464 &miss
->initial_vals
, rule
, 0, packet
);
3465 ctx
.resubmit_stats
= &stats
;
3466 xlate_actions(&ctx
, rule
->up
.ofpacts
, rule
->up
.ofpacts_len
,
3469 if (odp_actions
.size
) {
3470 struct dpif_execute
*execute
= &op
->dpif_op
.u
.execute
;
3472 init_flow_miss_execute_op(miss
, packet
, op
);
3473 execute
->actions
= odp_actions
.data
;
3474 execute
->actions_len
= odp_actions
.size
;
3475 op
->garbage
= ofpbuf_get_uninit_pointer(&odp_actions
);
3479 ofpbuf_uninit(&odp_actions
);
3484 /* Handles 'miss', which matches 'facet'. May add any required datapath
3485 * operations to 'ops', incrementing '*n_ops' for each new op.
3487 * All of the packets in 'miss' are considered to have arrived at time 'now'.
3488 * This is really important only for new facets: if we just called time_msec()
3489 * here, then the new subfacet or its packets could look (occasionally) as
3490 * though it was used some time after the facet was used. That can make a
3491 * one-packet flow look like it has a nonzero duration, which looks odd in
3492 * e.g. NetFlow statistics. */
3494 handle_flow_miss_with_facet(struct flow_miss
*miss
, struct facet
*facet
,
3496 struct flow_miss_op
*ops
, size_t *n_ops
)
3498 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
3499 enum subfacet_path want_path
;
3500 struct subfacet
*subfacet
;
3501 struct ofpbuf
*packet
;
3503 subfacet
= subfacet_create(facet
, miss
, now
);
3505 LIST_FOR_EACH (packet
, list_node
, &miss
->packets
) {
3506 struct flow_miss_op
*op
= &ops
[*n_ops
];
3507 struct dpif_flow_stats stats
;
3508 struct ofpbuf odp_actions
;
3510 handle_flow_miss_common(facet
->rule
, packet
, &miss
->flow
);
3512 ofpbuf_use_stub(&odp_actions
, op
->stub
, sizeof op
->stub
);
3513 if (!subfacet
->actions
|| subfacet
->slow
) {
3514 subfacet_make_actions(subfacet
, packet
, &odp_actions
);
3517 dpif_flow_stats_extract(&facet
->flow
, packet
, now
, &stats
);
3518 subfacet_update_stats(subfacet
, &stats
);
3520 if (subfacet
->actions_len
) {
3521 struct dpif_execute
*execute
= &op
->dpif_op
.u
.execute
;
3523 init_flow_miss_execute_op(miss
, packet
, op
);
3524 if (!subfacet
->slow
) {
3525 execute
->actions
= subfacet
->actions
;
3526 execute
->actions_len
= subfacet
->actions_len
;
3527 ofpbuf_uninit(&odp_actions
);
3529 execute
->actions
= odp_actions
.data
;
3530 execute
->actions_len
= odp_actions
.size
;
3531 op
->garbage
= ofpbuf_get_uninit_pointer(&odp_actions
);
3536 ofpbuf_uninit(&odp_actions
);
3540 want_path
= subfacet_want_path(subfacet
->slow
);
3541 if (miss
->upcall_type
== DPIF_UC_MISS
|| subfacet
->path
!= want_path
) {
3542 struct flow_miss_op
*op
= &ops
[(*n_ops
)++];
3543 struct dpif_flow_put
*put
= &op
->dpif_op
.u
.flow_put
;
3545 subfacet
->path
= want_path
;
3548 op
->dpif_op
.type
= DPIF_OP_FLOW_PUT
;
3549 put
->flags
= DPIF_FP_CREATE
| DPIF_FP_MODIFY
;
3550 put
->key
= miss
->key
;
3551 put
->key_len
= miss
->key_len
;
3552 if (want_path
== SF_FAST_PATH
) {
3553 put
->actions
= subfacet
->actions
;
3554 put
->actions_len
= subfacet
->actions_len
;
3556 compose_slow_path(ofproto
, &facet
->flow
, subfacet
->slow
,
3557 op
->stub
, sizeof op
->stub
,
3558 &put
->actions
, &put
->actions_len
);
3564 /* Handles flow miss 'miss'. May add any required datapath operations
3565 * to 'ops', incrementing '*n_ops' for each new op. */
3567 handle_flow_miss(struct flow_miss
*miss
, struct flow_miss_op
*ops
,
3570 struct ofproto_dpif
*ofproto
= miss
->ofproto
;
3571 struct facet
*facet
;
3575 /* The caller must ensure that miss->hmap_node.hash contains
3576 * flow_hash(miss->flow, 0). */
3577 hash
= miss
->hmap_node
.hash
;
3579 facet
= facet_lookup_valid(ofproto
, &miss
->flow
, hash
);
3581 struct rule_dpif
*rule
= rule_dpif_lookup(ofproto
, &miss
->flow
);
3583 if (!flow_miss_should_make_facet(ofproto
, miss
, hash
)) {
3584 handle_flow_miss_without_facet(miss
, rule
, ops
, n_ops
);
3588 facet
= facet_create(rule
, &miss
->flow
, hash
);
3593 handle_flow_miss_with_facet(miss
, facet
, now
, ops
, n_ops
);
3596 static struct drop_key
*
3597 drop_key_lookup(const struct dpif_backer
*backer
, const struct nlattr
*key
,
3600 struct drop_key
*drop_key
;
3602 HMAP_FOR_EACH_WITH_HASH (drop_key
, hmap_node
, hash_bytes(key
, key_len
, 0),
3603 &backer
->drop_keys
) {
3604 if (drop_key
->key_len
== key_len
3605 && !memcmp(drop_key
->key
, key
, key_len
)) {
3613 drop_key_clear(struct dpif_backer
*backer
)
3615 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 15);
3616 struct drop_key
*drop_key
, *next
;
3618 HMAP_FOR_EACH_SAFE (drop_key
, next
, hmap_node
, &backer
->drop_keys
) {
3621 error
= dpif_flow_del(backer
->dpif
, drop_key
->key
, drop_key
->key_len
,
3623 if (error
&& !VLOG_DROP_WARN(&rl
)) {
3624 struct ds ds
= DS_EMPTY_INITIALIZER
;
3625 odp_flow_key_format(drop_key
->key
, drop_key
->key_len
, &ds
);
3626 VLOG_WARN("Failed to delete drop key (%s) (%s)", strerror(error
),
3631 hmap_remove(&backer
->drop_keys
, &drop_key
->hmap_node
);
3632 free(drop_key
->key
);
3637 /* Given a datpath, packet, and flow metadata ('backer', 'packet', and 'key'
3638 * respectively), populates 'flow' with the result of odp_flow_key_to_flow().
3639 * Optionally, if nonnull, populates 'fitnessp' with the fitness of 'flow' as
3640 * returned by odp_flow_key_to_flow(). Also, optionally populates 'ofproto'
3641 * with the ofproto_dpif, and 'odp_in_port' with the datapath in_port, that
3642 * 'packet' ingressed.
3644 * If 'ofproto' is nonnull, requires 'flow''s in_port to exist. Otherwise sets
3645 * 'flow''s in_port to OFPP_NONE.
3647 * This function does post-processing on data returned from
3648 * odp_flow_key_to_flow() to help make VLAN splinters transparent to the rest
3649 * of the upcall processing logic. In particular, if the extracted in_port is
3650 * a VLAN splinter port, it replaces flow->in_port by the "real" port, sets
3651 * flow->vlan_tci correctly for the VLAN of the VLAN splinter port, and pushes
3652 * a VLAN header onto 'packet' (if it is nonnull).
3654 * Optionally, if 'initial_vals' is nonnull, sets 'initial_vals->vlan_tci'
3655 * to the VLAN TCI with which the packet was really received, that is, the
3656 * actual VLAN TCI extracted by odp_flow_key_to_flow(). (This differs from
3657 * the value returned in flow->vlan_tci only for packets received on
3658 * VLAN splinters.) Also, if received on an IP tunnel, sets
3659 * 'initial_vals->tunnel_ip_tos' to the tunnel's IP TOS.
3661 * Similarly, this function also includes some logic to help with tunnels. It
3662 * may modify 'flow' as necessary to make the tunneling implementation
3663 * transparent to the upcall processing logic.
3665 * Returns 0 if successful, ENODEV if the parsed flow has no associated ofport,
3666 * or some other positive errno if there are other problems. */
3668 ofproto_receive(const struct dpif_backer
*backer
, struct ofpbuf
*packet
,
3669 const struct nlattr
*key
, size_t key_len
,
3670 struct flow
*flow
, enum odp_key_fitness
*fitnessp
,
3671 struct ofproto_dpif
**ofproto
, uint32_t *odp_in_port
,
3672 struct initial_vals
*initial_vals
)
3674 const struct ofport_dpif
*port
;
3675 enum odp_key_fitness fitness
;
3678 fitness
= odp_flow_key_to_flow(key
, key_len
, flow
);
3679 if (fitness
== ODP_FIT_ERROR
) {
3685 initial_vals
->vlan_tci
= flow
->vlan_tci
;
3686 initial_vals
->tunnel_ip_tos
= flow
->tunnel
.ip_tos
;
3690 *odp_in_port
= flow
->in_port
;
3693 if (tnl_port_should_receive(flow
)) {
3694 const struct ofport
*ofport
= tnl_port_receive(flow
);
3696 flow
->in_port
= OFPP_NONE
;
3699 port
= ofport_dpif_cast(ofport
);
3701 /* We can't reproduce 'key' from 'flow'. */
3702 fitness
= fitness
== ODP_FIT_PERFECT
? ODP_FIT_TOO_MUCH
: fitness
;
3704 /* XXX: Since the tunnel module is not scoped per backer, it's
3705 * theoretically possible that we'll receive an ofport belonging to an
3706 * entirely different datapath. In practice, this can't happen because
3707 * no platforms has two separate datapaths which each support
3709 ovs_assert(ofproto_dpif_cast(port
->up
.ofproto
)->backer
== backer
);
3711 port
= odp_port_to_ofport(backer
, flow
->in_port
);
3713 flow
->in_port
= OFPP_NONE
;
3717 flow
->in_port
= port
->up
.ofp_port
;
3718 if (vsp_adjust_flow(ofproto_dpif_cast(port
->up
.ofproto
), flow
)) {
3720 /* Make the packet resemble the flow, so that it gets sent to
3721 * an OpenFlow controller properly, so that it looks correct
3722 * for sFlow, and so that flow_extract() will get the correct
3723 * vlan_tci if it is called on 'packet'.
3725 * The allocated space inside 'packet' probably also contains
3726 * 'key', that is, both 'packet' and 'key' are probably part of
3727 * a struct dpif_upcall (see the large comment on that
3728 * structure definition), so pushing data on 'packet' is in
3729 * general not a good idea since it could overwrite 'key' or
3730 * free it as a side effect. However, it's OK in this special
3731 * case because we know that 'packet' is inside a Netlink
3732 * attribute: pushing 4 bytes will just overwrite the 4-byte
3733 * "struct nlattr", which is fine since we don't need that
3734 * header anymore. */
3735 eth_push_vlan(packet
, flow
->vlan_tci
);
3737 /* We can't reproduce 'key' from 'flow'. */
3738 fitness
= fitness
== ODP_FIT_PERFECT
? ODP_FIT_TOO_MUCH
: fitness
;
3744 *ofproto
= ofproto_dpif_cast(port
->up
.ofproto
);
3749 *fitnessp
= fitness
;
3755 handle_miss_upcalls(struct dpif_backer
*backer
, struct dpif_upcall
*upcalls
,
3758 struct dpif_upcall
*upcall
;
3759 struct flow_miss
*miss
;
3760 struct flow_miss misses
[FLOW_MISS_MAX_BATCH
];
3761 struct flow_miss_op flow_miss_ops
[FLOW_MISS_MAX_BATCH
* 2];
3762 struct dpif_op
*dpif_ops
[FLOW_MISS_MAX_BATCH
* 2];
3772 /* Construct the to-do list.
3774 * This just amounts to extracting the flow from each packet and sticking
3775 * the packets that have the same flow in the same "flow_miss" structure so
3776 * that we can process them together. */
3779 for (upcall
= upcalls
; upcall
< &upcalls
[n_upcalls
]; upcall
++) {
3780 struct flow_miss
*miss
= &misses
[n_misses
];
3781 struct flow_miss
*existing_miss
;
3782 struct ofproto_dpif
*ofproto
;
3783 uint32_t odp_in_port
;
3788 error
= ofproto_receive(backer
, upcall
->packet
, upcall
->key
,
3789 upcall
->key_len
, &flow
, &miss
->key_fitness
,
3790 &ofproto
, &odp_in_port
, &miss
->initial_vals
);
3791 if (error
== ENODEV
) {
3792 struct drop_key
*drop_key
;
3794 /* Received packet on port for which we couldn't associate
3795 * an ofproto. This can happen if a port is removed while
3796 * traffic is being received. Print a rate-limited message
3797 * in case it happens frequently. Install a drop flow so
3798 * that future packets of the flow are inexpensively dropped
3800 VLOG_INFO_RL(&rl
, "received packet on unassociated port %"PRIu32
,
3803 drop_key
= drop_key_lookup(backer
, upcall
->key
, upcall
->key_len
);
3805 drop_key
= xmalloc(sizeof *drop_key
);
3806 drop_key
->key
= xmemdup(upcall
->key
, upcall
->key_len
);
3807 drop_key
->key_len
= upcall
->key_len
;
3809 hmap_insert(&backer
->drop_keys
, &drop_key
->hmap_node
,
3810 hash_bytes(drop_key
->key
, drop_key
->key_len
, 0));
3811 dpif_flow_put(backer
->dpif
, DPIF_FP_CREATE
| DPIF_FP_MODIFY
,
3812 drop_key
->key
, drop_key
->key_len
, NULL
, 0, NULL
);
3819 flow_extract(upcall
->packet
, flow
.skb_priority
, flow
.skb_mark
,
3820 &flow
.tunnel
, flow
.in_port
, &miss
->flow
);
3822 /* Add other packets to a to-do list. */
3823 hash
= flow_hash(&miss
->flow
, 0);
3824 existing_miss
= flow_miss_find(&todo
, ofproto
, &miss
->flow
, hash
);
3825 if (!existing_miss
) {
3826 hmap_insert(&todo
, &miss
->hmap_node
, hash
);
3827 miss
->ofproto
= ofproto
;
3828 miss
->key
= upcall
->key
;
3829 miss
->key_len
= upcall
->key_len
;
3830 miss
->upcall_type
= upcall
->type
;
3831 miss
->odp_in_port
= odp_in_port
;
3832 list_init(&miss
->packets
);
3836 miss
= existing_miss
;
3838 list_push_back(&miss
->packets
, &upcall
->packet
->list_node
);
3841 /* Process each element in the to-do list, constructing the set of
3842 * operations to batch. */
3844 HMAP_FOR_EACH (miss
, hmap_node
, &todo
) {
3845 handle_flow_miss(miss
, flow_miss_ops
, &n_ops
);
3847 ovs_assert(n_ops
<= ARRAY_SIZE(flow_miss_ops
));
3849 /* Execute batch. */
3850 for (i
= 0; i
< n_ops
; i
++) {
3851 dpif_ops
[i
] = &flow_miss_ops
[i
].dpif_op
;
3853 dpif_operate(backer
->dpif
, dpif_ops
, n_ops
);
3856 for (i
= 0; i
< n_ops
; i
++) {
3857 free(flow_miss_ops
[i
].garbage
);
3859 hmap_destroy(&todo
);
3862 static enum { SFLOW_UPCALL
, MISS_UPCALL
, BAD_UPCALL
}
3863 classify_upcall(const struct dpif_upcall
*upcall
)
3865 union user_action_cookie cookie
;
3867 /* First look at the upcall type. */
3868 switch (upcall
->type
) {
3869 case DPIF_UC_ACTION
:
3875 case DPIF_N_UC_TYPES
:
3877 VLOG_WARN_RL(&rl
, "upcall has unexpected type %"PRIu32
, upcall
->type
);
3881 /* "action" upcalls need a closer look. */
3882 if (!upcall
->userdata
) {
3883 VLOG_WARN_RL(&rl
, "action upcall missing cookie");
3886 if (nl_attr_get_size(upcall
->userdata
) != sizeof(cookie
)) {
3887 VLOG_WARN_RL(&rl
, "action upcall cookie has unexpected size %zu",
3888 nl_attr_get_size(upcall
->userdata
));
3891 memcpy(&cookie
, nl_attr_get(upcall
->userdata
), sizeof(cookie
));
3892 switch (cookie
.type
) {
3893 case USER_ACTION_COOKIE_SFLOW
:
3894 return SFLOW_UPCALL
;
3896 case USER_ACTION_COOKIE_SLOW_PATH
:
3899 case USER_ACTION_COOKIE_UNSPEC
:
3901 VLOG_WARN_RL(&rl
, "invalid user cookie : 0x%"PRIx64
,
3902 nl_attr_get_u64(upcall
->userdata
));
3908 handle_sflow_upcall(struct dpif_backer
*backer
,
3909 const struct dpif_upcall
*upcall
)
3911 struct ofproto_dpif
*ofproto
;
3912 union user_action_cookie cookie
;
3914 uint32_t odp_in_port
;
3916 if (ofproto_receive(backer
, upcall
->packet
, upcall
->key
, upcall
->key_len
,
3917 &flow
, NULL
, &ofproto
, &odp_in_port
, NULL
)
3918 || !ofproto
->sflow
) {
3922 memcpy(&cookie
, nl_attr_get(upcall
->userdata
), sizeof(cookie
));
3923 dpif_sflow_received(ofproto
->sflow
, upcall
->packet
, &flow
,
3924 odp_in_port
, &cookie
);
3928 handle_upcalls(struct dpif_backer
*backer
, unsigned int max_batch
)
3930 struct dpif_upcall misses
[FLOW_MISS_MAX_BATCH
];
3931 struct ofpbuf miss_bufs
[FLOW_MISS_MAX_BATCH
];
3932 uint64_t miss_buf_stubs
[FLOW_MISS_MAX_BATCH
][4096 / 8];
3937 ovs_assert(max_batch
<= FLOW_MISS_MAX_BATCH
);
3940 for (n_processed
= 0; n_processed
< max_batch
; n_processed
++) {
3941 struct dpif_upcall
*upcall
= &misses
[n_misses
];
3942 struct ofpbuf
*buf
= &miss_bufs
[n_misses
];
3945 ofpbuf_use_stub(buf
, miss_buf_stubs
[n_misses
],
3946 sizeof miss_buf_stubs
[n_misses
]);
3947 error
= dpif_recv(backer
->dpif
, upcall
, buf
);
3953 switch (classify_upcall(upcall
)) {
3955 /* Handle it later. */
3960 handle_sflow_upcall(backer
, upcall
);
3970 /* Handle deferred MISS_UPCALL processing. */
3971 handle_miss_upcalls(backer
, misses
, n_misses
);
3972 for (i
= 0; i
< n_misses
; i
++) {
3973 ofpbuf_uninit(&miss_bufs
[i
]);
3979 /* Flow expiration. */
3981 static int subfacet_max_idle(const struct ofproto_dpif
*);
3982 static void update_stats(struct dpif_backer
*);
3983 static void rule_expire(struct rule_dpif
*);
3984 static void expire_subfacets(struct ofproto_dpif
*, int dp_max_idle
);
3986 /* This function is called periodically by run(). Its job is to collect
3987 * updates for the flows that have been installed into the datapath, most
3988 * importantly when they last were used, and then use that information to
3989 * expire flows that have not been used recently.
3991 * Returns the number of milliseconds after which it should be called again. */
3993 expire(struct dpif_backer
*backer
)
3995 struct ofproto_dpif
*ofproto
;
3996 int max_idle
= INT32_MAX
;
3998 /* Periodically clear out the drop keys in an effort to keep them
3999 * relatively few. */
4000 drop_key_clear(backer
);
4002 /* Update stats for each flow in the backer. */
4003 update_stats(backer
);
4005 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
4006 struct rule
*rule
, *next_rule
;
4009 if (ofproto
->backer
!= backer
) {
4013 /* Expire subfacets that have been idle too long. */
4014 dp_max_idle
= subfacet_max_idle(ofproto
);
4015 expire_subfacets(ofproto
, dp_max_idle
);
4017 max_idle
= MIN(max_idle
, dp_max_idle
);
4019 /* Expire OpenFlow flows whose idle_timeout or hard_timeout
4021 LIST_FOR_EACH_SAFE (rule
, next_rule
, expirable
,
4022 &ofproto
->up
.expirable
) {
4023 rule_expire(rule_dpif_cast(rule
));
4026 /* All outstanding data in existing flows has been accounted, so it's a
4027 * good time to do bond rebalancing. */
4028 if (ofproto
->has_bonded_bundles
) {
4029 struct ofbundle
*bundle
;
4031 HMAP_FOR_EACH (bundle
, hmap_node
, &ofproto
->bundles
) {
4033 bond_rebalance(bundle
->bond
, &backer
->revalidate_set
);
4039 return MIN(max_idle
, 1000);
4042 /* Updates flow table statistics given that the datapath just reported 'stats'
4043 * as 'subfacet''s statistics. */
4045 update_subfacet_stats(struct subfacet
*subfacet
,
4046 const struct dpif_flow_stats
*stats
)
4048 struct facet
*facet
= subfacet
->facet
;
4050 if (stats
->n_packets
>= subfacet
->dp_packet_count
) {
4051 uint64_t extra
= stats
->n_packets
- subfacet
->dp_packet_count
;
4052 facet
->packet_count
+= extra
;
4054 VLOG_WARN_RL(&rl
, "unexpected packet count from the datapath");
4057 if (stats
->n_bytes
>= subfacet
->dp_byte_count
) {
4058 facet
->byte_count
+= stats
->n_bytes
- subfacet
->dp_byte_count
;
4060 VLOG_WARN_RL(&rl
, "unexpected byte count from datapath");
4063 subfacet
->dp_packet_count
= stats
->n_packets
;
4064 subfacet
->dp_byte_count
= stats
->n_bytes
;
4066 facet
->tcp_flags
|= stats
->tcp_flags
;
4068 subfacet_update_time(subfacet
, stats
->used
);
4069 if (facet
->accounted_bytes
< facet
->byte_count
) {
4071 facet_account(facet
);
4072 facet
->accounted_bytes
= facet
->byte_count
;
4074 facet_push_stats(facet
);
4077 /* 'key' with length 'key_len' bytes is a flow in 'dpif' that we know nothing
4078 * about, or a flow that shouldn't be installed but was anyway. Delete it. */
4080 delete_unexpected_flow(struct ofproto_dpif
*ofproto
,
4081 const struct nlattr
*key
, size_t key_len
)
4083 if (!VLOG_DROP_WARN(&rl
)) {
4087 odp_flow_key_format(key
, key_len
, &s
);
4088 VLOG_WARN("unexpected flow on %s: %s", ofproto
->up
.name
, ds_cstr(&s
));
4092 COVERAGE_INC(facet_unexpected
);
4093 dpif_flow_del(ofproto
->backer
->dpif
, key
, key_len
, NULL
);
4096 /* Update 'packet_count', 'byte_count', and 'used' members of installed facets.
4098 * This function also pushes statistics updates to rules which each facet
4099 * resubmits into. Generally these statistics will be accurate. However, if a
4100 * facet changes the rule it resubmits into at some time in between
4101 * update_stats() runs, it is possible that statistics accrued to the
4102 * old rule will be incorrectly attributed to the new rule. This could be
4103 * avoided by calling update_stats() whenever rules are created or
4104 * deleted. However, the performance impact of making so many calls to the
4105 * datapath do not justify the benefit of having perfectly accurate statistics.
4108 update_stats(struct dpif_backer
*backer
)
4110 const struct dpif_flow_stats
*stats
;
4111 struct dpif_flow_dump dump
;
4112 const struct nlattr
*key
;
4115 dpif_flow_dump_start(&dump
, backer
->dpif
);
4116 while (dpif_flow_dump_next(&dump
, &key
, &key_len
, NULL
, NULL
, &stats
)) {
4118 struct subfacet
*subfacet
;
4119 struct ofproto_dpif
*ofproto
;
4120 struct ofport_dpif
*ofport
;
4123 if (ofproto_receive(backer
, NULL
, key
, key_len
, &flow
, NULL
, &ofproto
,
4128 ofport
= get_ofp_port(ofproto
, flow
.in_port
);
4129 if (ofport
&& ofport
->tnl_port
) {
4130 netdev_vport_inc_rx(ofport
->up
.netdev
, stats
);
4133 key_hash
= odp_flow_key_hash(key
, key_len
);
4134 subfacet
= subfacet_find(ofproto
, key
, key_len
, key_hash
);
4135 switch (subfacet
? subfacet
->path
: SF_NOT_INSTALLED
) {
4137 update_subfacet_stats(subfacet
, stats
);
4141 /* Stats are updated per-packet. */
4144 case SF_NOT_INSTALLED
:
4146 delete_unexpected_flow(ofproto
, key
, key_len
);
4150 dpif_flow_dump_done(&dump
);
4153 /* Calculates and returns the number of milliseconds of idle time after which
4154 * subfacets should expire from the datapath. When a subfacet expires, we fold
4155 * its statistics into its facet, and when a facet's last subfacet expires, we
4156 * fold its statistic into its rule. */
4158 subfacet_max_idle(const struct ofproto_dpif
*ofproto
)
4161 * Idle time histogram.
4163 * Most of the time a switch has a relatively small number of subfacets.
4164 * When this is the case we might as well keep statistics for all of them
4165 * in userspace and to cache them in the kernel datapath for performance as
4168 * As the number of subfacets increases, the memory required to maintain
4169 * statistics about them in userspace and in the kernel becomes
4170 * significant. However, with a large number of subfacets it is likely
4171 * that only a few of them are "heavy hitters" that consume a large amount
4172 * of bandwidth. At this point, only heavy hitters are worth caching in
4173 * the kernel and maintaining in userspaces; other subfacets we can
4176 * The technique used to compute the idle time is to build a histogram with
4177 * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each subfacet
4178 * that is installed in the kernel gets dropped in the appropriate bucket.
4179 * After the histogram has been built, we compute the cutoff so that only
4180 * the most-recently-used 1% of subfacets (but at least
4181 * ofproto->up.flow_eviction_threshold flows) are kept cached. At least
4182 * the most-recently-used bucket of subfacets is kept, so actually an
4183 * arbitrary number of subfacets can be kept in any given expiration run
4184 * (though the next run will delete most of those unless they receive
4187 * This requires a second pass through the subfacets, in addition to the
4188 * pass made by update_stats(), because the former function never looks at
4189 * uninstallable subfacets.
4191 enum { BUCKET_WIDTH
= ROUND_UP(100, TIME_UPDATE_INTERVAL
) };
4192 enum { N_BUCKETS
= 5000 / BUCKET_WIDTH
};
4193 int buckets
[N_BUCKETS
] = { 0 };
4194 int total
, subtotal
, bucket
;
4195 struct subfacet
*subfacet
;
4199 total
= hmap_count(&ofproto
->subfacets
);
4200 if (total
<= ofproto
->up
.flow_eviction_threshold
) {
4201 return N_BUCKETS
* BUCKET_WIDTH
;
4204 /* Build histogram. */
4206 HMAP_FOR_EACH (subfacet
, hmap_node
, &ofproto
->subfacets
) {
4207 long long int idle
= now
- subfacet
->used
;
4208 int bucket
= (idle
<= 0 ? 0
4209 : idle
>= BUCKET_WIDTH
* N_BUCKETS
? N_BUCKETS
- 1
4210 : (unsigned int) idle
/ BUCKET_WIDTH
);
4214 /* Find the first bucket whose flows should be expired. */
4215 subtotal
= bucket
= 0;
4217 subtotal
+= buckets
[bucket
++];
4218 } while (bucket
< N_BUCKETS
&&
4219 subtotal
< MAX(ofproto
->up
.flow_eviction_threshold
, total
/ 100));
4221 if (VLOG_IS_DBG_ENABLED()) {
4225 ds_put_cstr(&s
, "keep");
4226 for (i
= 0; i
< N_BUCKETS
; i
++) {
4228 ds_put_cstr(&s
, ", drop");
4231 ds_put_format(&s
, " %d:%d", i
* BUCKET_WIDTH
, buckets
[i
]);
4234 VLOG_INFO("%s: %s (msec:count)", ofproto
->up
.name
, ds_cstr(&s
));
4238 return bucket
* BUCKET_WIDTH
;
4242 expire_subfacets(struct ofproto_dpif
*ofproto
, int dp_max_idle
)
4244 /* Cutoff time for most flows. */
4245 long long int normal_cutoff
= time_msec() - dp_max_idle
;
4247 /* We really want to keep flows for special protocols around, so use a more
4248 * conservative cutoff. */
4249 long long int special_cutoff
= time_msec() - 10000;
4251 struct subfacet
*subfacet
, *next_subfacet
;
4252 struct subfacet
*batch
[SUBFACET_DESTROY_MAX_BATCH
];
4256 HMAP_FOR_EACH_SAFE (subfacet
, next_subfacet
, hmap_node
,
4257 &ofproto
->subfacets
) {
4258 long long int cutoff
;
4260 cutoff
= (subfacet
->slow
& (SLOW_CFM
| SLOW_LACP
| SLOW_STP
)
4263 if (subfacet
->used
< cutoff
) {
4264 if (subfacet
->path
!= SF_NOT_INSTALLED
) {
4265 batch
[n_batch
++] = subfacet
;
4266 if (n_batch
>= SUBFACET_DESTROY_MAX_BATCH
) {
4267 subfacet_destroy_batch(ofproto
, batch
, n_batch
);
4271 subfacet_destroy(subfacet
);
4277 subfacet_destroy_batch(ofproto
, batch
, n_batch
);
4281 /* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules,
4282 * then delete it entirely. */
4284 rule_expire(struct rule_dpif
*rule
)
4286 struct facet
*facet
, *next_facet
;
4290 if (rule
->up
.pending
) {
4291 /* We'll have to expire it later. */
4295 /* Has 'rule' expired? */
4297 if (rule
->up
.hard_timeout
4298 && now
> rule
->up
.modified
+ rule
->up
.hard_timeout
* 1000) {
4299 reason
= OFPRR_HARD_TIMEOUT
;
4300 } else if (rule
->up
.idle_timeout
4301 && now
> rule
->up
.used
+ rule
->up
.idle_timeout
* 1000) {
4302 reason
= OFPRR_IDLE_TIMEOUT
;
4307 COVERAGE_INC(ofproto_dpif_expired
);
4309 /* Update stats. (This is a no-op if the rule expired due to an idle
4310 * timeout, because that only happens when the rule has no facets left.) */
4311 LIST_FOR_EACH_SAFE (facet
, next_facet
, list_node
, &rule
->facets
) {
4312 facet_remove(facet
);
4315 /* Get rid of the rule. */
4316 ofproto_rule_expire(&rule
->up
, reason
);
4321 /* Creates and returns a new facet owned by 'rule', given a 'flow'.
4323 * The caller must already have determined that no facet with an identical
4324 * 'flow' exists in 'ofproto' and that 'flow' is the best match for 'rule' in
4325 * the ofproto's classifier table.
4327 * 'hash' must be the return value of flow_hash(flow, 0).
4329 * The facet will initially have no subfacets. The caller should create (at
4330 * least) one subfacet with subfacet_create(). */
4331 static struct facet
*
4332 facet_create(struct rule_dpif
*rule
, const struct flow
*flow
, uint32_t hash
)
4334 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
4335 struct facet
*facet
;
4337 facet
= xzalloc(sizeof *facet
);
4338 facet
->used
= time_msec();
4339 hmap_insert(&ofproto
->facets
, &facet
->hmap_node
, hash
);
4340 list_push_back(&rule
->facets
, &facet
->list_node
);
4342 facet
->flow
= *flow
;
4343 list_init(&facet
->subfacets
);
4344 netflow_flow_init(&facet
->nf_flow
);
4345 netflow_flow_update_time(ofproto
->netflow
, &facet
->nf_flow
, facet
->used
);
4351 facet_free(struct facet
*facet
)
4356 /* Executes, within 'ofproto', the 'n_actions' actions in 'actions' on
4357 * 'packet', which arrived on 'in_port'. */
4359 execute_odp_actions(struct ofproto_dpif
*ofproto
, const struct flow
*flow
,
4360 const struct nlattr
*odp_actions
, size_t actions_len
,
4361 struct ofpbuf
*packet
)
4363 struct odputil_keybuf keybuf
;
4367 ofpbuf_use_stack(&key
, &keybuf
, sizeof keybuf
);
4368 odp_flow_key_from_flow(&key
, flow
,
4369 ofp_port_to_odp_port(ofproto
, flow
->in_port
));
4371 error
= dpif_execute(ofproto
->backer
->dpif
, key
.data
, key
.size
,
4372 odp_actions
, actions_len
, packet
);
4376 /* Remove 'facet' from 'ofproto' and free up the associated memory:
4378 * - If 'facet' was installed in the datapath, uninstalls it and updates its
4379 * rule's statistics, via subfacet_uninstall().
4381 * - Removes 'facet' from its rule and from ofproto->facets.
4384 facet_remove(struct facet
*facet
)
4386 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
4387 struct subfacet
*subfacet
, *next_subfacet
;
4389 ovs_assert(!list_is_empty(&facet
->subfacets
));
4391 /* First uninstall all of the subfacets to get final statistics. */
4392 LIST_FOR_EACH (subfacet
, list_node
, &facet
->subfacets
) {
4393 subfacet_uninstall(subfacet
);
4396 /* Flush the final stats to the rule.
4398 * This might require us to have at least one subfacet around so that we
4399 * can use its actions for accounting in facet_account(), which is why we
4400 * have uninstalled but not yet destroyed the subfacets. */
4401 facet_flush_stats(facet
);
4403 /* Now we're really all done so destroy everything. */
4404 LIST_FOR_EACH_SAFE (subfacet
, next_subfacet
, list_node
,
4405 &facet
->subfacets
) {
4406 subfacet_destroy__(subfacet
);
4408 hmap_remove(&ofproto
->facets
, &facet
->hmap_node
);
4409 list_remove(&facet
->list_node
);
4413 /* Feed information from 'facet' back into the learning table to keep it in
4414 * sync with what is actually flowing through the datapath. */
4416 facet_learn(struct facet
*facet
)
4418 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
4419 struct subfacet
*subfacet
= CONTAINER_OF(list_front(&facet
->subfacets
),
4420 struct subfacet
, list_node
);
4421 struct action_xlate_ctx ctx
;
4423 if (!facet
->has_learn
4424 && !facet
->has_normal
4425 && (!facet
->has_fin_timeout
4426 || !(facet
->tcp_flags
& (TCP_FIN
| TCP_RST
)))) {
4430 action_xlate_ctx_init(&ctx
, ofproto
, &facet
->flow
,
4431 &subfacet
->initial_vals
,
4432 facet
->rule
, facet
->tcp_flags
, NULL
);
4433 ctx
.may_learn
= true;
4434 xlate_actions_for_side_effects(&ctx
, facet
->rule
->up
.ofpacts
,
4435 facet
->rule
->up
.ofpacts_len
);
4439 facet_account(struct facet
*facet
)
4441 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
4442 struct subfacet
*subfacet
;
4443 const struct nlattr
*a
;
4448 if (!facet
->has_normal
|| !ofproto
->has_bonded_bundles
) {
4451 n_bytes
= facet
->byte_count
- facet
->accounted_bytes
;
4453 /* This loop feeds byte counters to bond_account() for rebalancing to use
4454 * as a basis. We also need to track the actual VLAN on which the packet
4455 * is going to be sent to ensure that it matches the one passed to
4456 * bond_choose_output_slave(). (Otherwise, we will account to the wrong
4459 * We use the actions from an arbitrary subfacet because they should all
4460 * be equally valid for our purpose. */
4461 subfacet
= CONTAINER_OF(list_front(&facet
->subfacets
),
4462 struct subfacet
, list_node
);
4463 vlan_tci
= facet
->flow
.vlan_tci
;
4464 NL_ATTR_FOR_EACH_UNSAFE (a
, left
,
4465 subfacet
->actions
, subfacet
->actions_len
) {
4466 const struct ovs_action_push_vlan
*vlan
;
4467 struct ofport_dpif
*port
;
4469 switch (nl_attr_type(a
)) {
4470 case OVS_ACTION_ATTR_OUTPUT
:
4471 port
= get_odp_port(ofproto
, nl_attr_get_u32(a
));
4472 if (port
&& port
->bundle
&& port
->bundle
->bond
) {
4473 bond_account(port
->bundle
->bond
, &facet
->flow
,
4474 vlan_tci_to_vid(vlan_tci
), n_bytes
);
4478 case OVS_ACTION_ATTR_POP_VLAN
:
4479 vlan_tci
= htons(0);
4482 case OVS_ACTION_ATTR_PUSH_VLAN
:
4483 vlan
= nl_attr_get(a
);
4484 vlan_tci
= vlan
->vlan_tci
;
4490 /* Returns true if the only action for 'facet' is to send to the controller.
4491 * (We don't report NetFlow expiration messages for such facets because they
4492 * are just part of the control logic for the network, not real traffic). */
4494 facet_is_controller_flow(struct facet
*facet
)
4497 const struct rule
*rule
= &facet
->rule
->up
;
4498 const struct ofpact
*ofpacts
= rule
->ofpacts
;
4499 size_t ofpacts_len
= rule
->ofpacts_len
;
4501 if (ofpacts_len
> 0 &&
4502 ofpacts
->type
== OFPACT_CONTROLLER
&&
4503 ofpact_next(ofpacts
) >= ofpact_end(ofpacts
, ofpacts_len
)) {
4510 /* Folds all of 'facet''s statistics into its rule. Also updates the
4511 * accounting ofhook and emits a NetFlow expiration if appropriate. All of
4512 * 'facet''s statistics in the datapath should have been zeroed and folded into
4513 * its packet and byte counts before this function is called. */
4515 facet_flush_stats(struct facet
*facet
)
4517 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
4518 struct subfacet
*subfacet
;
4520 LIST_FOR_EACH (subfacet
, list_node
, &facet
->subfacets
) {
4521 ovs_assert(!subfacet
->dp_byte_count
);
4522 ovs_assert(!subfacet
->dp_packet_count
);
4525 facet_push_stats(facet
);
4526 if (facet
->accounted_bytes
< facet
->byte_count
) {
4527 facet_account(facet
);
4528 facet
->accounted_bytes
= facet
->byte_count
;
4531 if (ofproto
->netflow
&& !facet_is_controller_flow(facet
)) {
4532 struct ofexpired expired
;
4533 expired
.flow
= facet
->flow
;
4534 expired
.packet_count
= facet
->packet_count
;
4535 expired
.byte_count
= facet
->byte_count
;
4536 expired
.used
= facet
->used
;
4537 netflow_expire(ofproto
->netflow
, &facet
->nf_flow
, &expired
);
4540 facet
->rule
->packet_count
+= facet
->packet_count
;
4541 facet
->rule
->byte_count
+= facet
->byte_count
;
4543 /* Reset counters to prevent double counting if 'facet' ever gets
4545 facet_reset_counters(facet
);
4547 netflow_flow_clear(&facet
->nf_flow
);
4548 facet
->tcp_flags
= 0;
4551 /* Searches 'ofproto''s table of facets for one exactly equal to 'flow'.
4552 * Returns it if found, otherwise a null pointer.
4554 * 'hash' must be the return value of flow_hash(flow, 0).
4556 * The returned facet might need revalidation; use facet_lookup_valid()
4557 * instead if that is important. */
4558 static struct facet
*
4559 facet_find(struct ofproto_dpif
*ofproto
,
4560 const struct flow
*flow
, uint32_t hash
)
4562 struct facet
*facet
;
4564 HMAP_FOR_EACH_WITH_HASH (facet
, hmap_node
, hash
, &ofproto
->facets
) {
4565 if (flow_equal(flow
, &facet
->flow
)) {
4573 /* Searches 'ofproto''s table of facets for one exactly equal to 'flow'.
4574 * Returns it if found, otherwise a null pointer.
4576 * 'hash' must be the return value of flow_hash(flow, 0).
4578 * The returned facet is guaranteed to be valid. */
4579 static struct facet
*
4580 facet_lookup_valid(struct ofproto_dpif
*ofproto
, const struct flow
*flow
,
4583 struct facet
*facet
;
4585 facet
= facet_find(ofproto
, flow
, hash
);
4587 && (ofproto
->backer
->need_revalidate
4588 || tag_set_intersects(&ofproto
->backer
->revalidate_set
,
4590 facet_revalidate(facet
);
4592 /* facet_revalidate() may have destroyed 'facet'. */
4593 facet
= facet_find(ofproto
, flow
, hash
);
4600 subfacet_path_to_string(enum subfacet_path path
)
4603 case SF_NOT_INSTALLED
:
4604 return "not installed";
4606 return "in fast path";
4608 return "in slow path";
4614 /* Returns the path in which a subfacet should be installed if its 'slow'
4615 * member has the specified value. */
4616 static enum subfacet_path
4617 subfacet_want_path(enum slow_path_reason slow
)
4619 return slow
? SF_SLOW_PATH
: SF_FAST_PATH
;
4622 /* Returns true if 'subfacet' needs to have its datapath flow updated,
4623 * supposing that its actions have been recalculated as 'want_actions' and that
4624 * 'slow' is nonzero iff 'subfacet' should be in the slow path. */
4626 subfacet_should_install(struct subfacet
*subfacet
, enum slow_path_reason slow
,
4627 const struct ofpbuf
*want_actions
)
4629 enum subfacet_path want_path
= subfacet_want_path(slow
);
4630 return (want_path
!= subfacet
->path
4631 || (want_path
== SF_FAST_PATH
4632 && (subfacet
->actions_len
!= want_actions
->size
4633 || memcmp(subfacet
->actions
, want_actions
->data
,
4634 subfacet
->actions_len
))));
4638 facet_check_consistency(struct facet
*facet
)
4640 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 15);
4642 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
4644 uint64_t odp_actions_stub
[1024 / 8];
4645 struct ofpbuf odp_actions
;
4647 struct rule_dpif
*rule
;
4648 struct subfacet
*subfacet
;
4649 bool may_log
= false;
4652 /* Check the rule for consistency. */
4653 rule
= rule_dpif_lookup(ofproto
, &facet
->flow
);
4654 ok
= rule
== facet
->rule
;
4656 may_log
= !VLOG_DROP_WARN(&rl
);
4661 flow_format(&s
, &facet
->flow
);
4662 ds_put_format(&s
, ": facet associated with wrong rule (was "
4663 "table=%"PRIu8
",", facet
->rule
->up
.table_id
);
4664 cls_rule_format(&facet
->rule
->up
.cr
, &s
);
4665 ds_put_format(&s
, ") (should have been table=%"PRIu8
",",
4667 cls_rule_format(&rule
->up
.cr
, &s
);
4668 ds_put_char(&s
, ')');
4670 VLOG_WARN("%s", ds_cstr(&s
));
4675 /* Check the datapath actions for consistency. */
4676 ofpbuf_use_stub(&odp_actions
, odp_actions_stub
, sizeof odp_actions_stub
);
4677 LIST_FOR_EACH (subfacet
, list_node
, &facet
->subfacets
) {
4678 enum subfacet_path want_path
;
4679 struct action_xlate_ctx ctx
;
4682 action_xlate_ctx_init(&ctx
, ofproto
, &facet
->flow
,
4683 &subfacet
->initial_vals
, rule
, 0, NULL
);
4684 xlate_actions(&ctx
, rule
->up
.ofpacts
, rule
->up
.ofpacts_len
,
4687 if (subfacet
->path
== SF_NOT_INSTALLED
) {
4688 /* This only happens if the datapath reported an error when we
4689 * tried to install the flow. Don't flag another error here. */
4693 want_path
= subfacet_want_path(subfacet
->slow
);
4694 if (want_path
== SF_SLOW_PATH
&& subfacet
->path
== SF_SLOW_PATH
) {
4695 /* The actions for slow-path flows may legitimately vary from one
4696 * packet to the next. We're done. */
4700 if (!subfacet_should_install(subfacet
, subfacet
->slow
, &odp_actions
)) {
4704 /* Inconsistency! */
4706 may_log
= !VLOG_DROP_WARN(&rl
);
4710 /* Rate-limited, skip reporting. */
4715 odp_flow_key_format(subfacet
->key
, subfacet
->key_len
, &s
);
4717 ds_put_cstr(&s
, ": inconsistency in subfacet");
4718 if (want_path
!= subfacet
->path
) {
4719 enum odp_key_fitness fitness
= subfacet
->key_fitness
;
4721 ds_put_format(&s
, " (%s, fitness=%s)",
4722 subfacet_path_to_string(subfacet
->path
),
4723 odp_key_fitness_to_string(fitness
));
4724 ds_put_format(&s
, " (should have been %s)",
4725 subfacet_path_to_string(want_path
));
4726 } else if (want_path
== SF_FAST_PATH
) {
4727 ds_put_cstr(&s
, " (actions were: ");
4728 format_odp_actions(&s
, subfacet
->actions
,
4729 subfacet
->actions_len
);
4730 ds_put_cstr(&s
, ") (correct actions: ");
4731 format_odp_actions(&s
, odp_actions
.data
, odp_actions
.size
);
4732 ds_put_char(&s
, ')');
4734 ds_put_cstr(&s
, " (actions: ");
4735 format_odp_actions(&s
, subfacet
->actions
,
4736 subfacet
->actions_len
);
4737 ds_put_char(&s
, ')');
4739 VLOG_WARN("%s", ds_cstr(&s
));
4742 ofpbuf_uninit(&odp_actions
);
4747 /* Re-searches the classifier for 'facet':
4749 * - If the rule found is different from 'facet''s current rule, moves
4750 * 'facet' to the new rule and recompiles its actions.
4752 * - If the rule found is the same as 'facet''s current rule, leaves 'facet'
4753 * where it is and recompiles its actions anyway.
4755 * - If any of 'facet''s subfacets correspond to a new flow according to
4756 * ofproto_receive(), 'facet' is removed. */
4758 facet_revalidate(struct facet
*facet
)
4760 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
4762 struct nlattr
*odp_actions
;
4765 struct actions
*new_actions
;
4767 struct action_xlate_ctx ctx
;
4768 uint64_t odp_actions_stub
[1024 / 8];
4769 struct ofpbuf odp_actions
;
4771 struct rule_dpif
*new_rule
;
4772 struct subfacet
*subfacet
;
4775 COVERAGE_INC(facet_revalidate
);
4777 /* Check that child subfacets still correspond to this facet. Tunnel
4778 * configuration changes could cause a subfacet's OpenFlow in_port to
4780 LIST_FOR_EACH (subfacet
, list_node
, &facet
->subfacets
) {
4781 struct ofproto_dpif
*recv_ofproto
;
4782 struct flow recv_flow
;
4785 error
= ofproto_receive(ofproto
->backer
, NULL
, subfacet
->key
,
4786 subfacet
->key_len
, &recv_flow
, NULL
,
4787 &recv_ofproto
, NULL
, NULL
);
4789 || recv_ofproto
!= ofproto
4790 || memcmp(&recv_flow
, &facet
->flow
, sizeof recv_flow
)) {
4791 facet_remove(facet
);
4796 new_rule
= rule_dpif_lookup(ofproto
, &facet
->flow
);
4798 /* Calculate new datapath actions.
4800 * We do not modify any 'facet' state yet, because we might need to, e.g.,
4801 * emit a NetFlow expiration and, if so, we need to have the old state
4802 * around to properly compose it. */
4804 /* If the datapath actions changed or the installability changed,
4805 * then we need to talk to the datapath. */
4808 memset(&ctx
, 0, sizeof ctx
);
4809 ofpbuf_use_stub(&odp_actions
, odp_actions_stub
, sizeof odp_actions_stub
);
4810 LIST_FOR_EACH (subfacet
, list_node
, &facet
->subfacets
) {
4811 enum slow_path_reason slow
;
4813 action_xlate_ctx_init(&ctx
, ofproto
, &facet
->flow
,
4814 &subfacet
->initial_vals
, new_rule
, 0, NULL
);
4815 xlate_actions(&ctx
, new_rule
->up
.ofpacts
, new_rule
->up
.ofpacts_len
,
4818 slow
= (subfacet
->slow
& SLOW_MATCH
) | ctx
.slow
;
4819 if (subfacet_should_install(subfacet
, slow
, &odp_actions
)) {
4820 struct dpif_flow_stats stats
;
4822 subfacet_install(subfacet
,
4823 odp_actions
.data
, odp_actions
.size
, &stats
, slow
);
4824 subfacet_update_stats(subfacet
, &stats
);
4827 new_actions
= xcalloc(list_size(&facet
->subfacets
),
4828 sizeof *new_actions
);
4830 new_actions
[i
].odp_actions
= xmemdup(odp_actions
.data
,
4832 new_actions
[i
].actions_len
= odp_actions
.size
;
4837 ofpbuf_uninit(&odp_actions
);
4840 facet_flush_stats(facet
);
4843 /* Update 'facet' now that we've taken care of all the old state. */
4844 facet
->tags
= ctx
.tags
;
4845 facet
->nf_flow
.output_iface
= ctx
.nf_output_iface
;
4846 facet
->has_learn
= ctx
.has_learn
;
4847 facet
->has_normal
= ctx
.has_normal
;
4848 facet
->has_fin_timeout
= ctx
.has_fin_timeout
;
4849 facet
->mirrors
= ctx
.mirrors
;
4852 LIST_FOR_EACH (subfacet
, list_node
, &facet
->subfacets
) {
4853 subfacet
->slow
= (subfacet
->slow
& SLOW_MATCH
) | ctx
.slow
;
4855 if (new_actions
&& new_actions
[i
].odp_actions
) {
4856 free(subfacet
->actions
);
4857 subfacet
->actions
= new_actions
[i
].odp_actions
;
4858 subfacet
->actions_len
= new_actions
[i
].actions_len
;
4864 if (facet
->rule
!= new_rule
) {
4865 COVERAGE_INC(facet_changed_rule
);
4866 list_remove(&facet
->list_node
);
4867 list_push_back(&new_rule
->facets
, &facet
->list_node
);
4868 facet
->rule
= new_rule
;
4869 facet
->used
= new_rule
->up
.created
;
4870 facet
->prev_used
= facet
->used
;
4874 /* Updates 'facet''s used time. Caller is responsible for calling
4875 * facet_push_stats() to update the flows which 'facet' resubmits into. */
4877 facet_update_time(struct facet
*facet
, long long int used
)
4879 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
4880 if (used
> facet
->used
) {
4882 ofproto_rule_update_used(&facet
->rule
->up
, used
);
4883 netflow_flow_update_time(ofproto
->netflow
, &facet
->nf_flow
, used
);
4888 facet_reset_counters(struct facet
*facet
)
4890 facet
->packet_count
= 0;
4891 facet
->byte_count
= 0;
4892 facet
->prev_packet_count
= 0;
4893 facet
->prev_byte_count
= 0;
4894 facet
->accounted_bytes
= 0;
4898 facet_push_stats(struct facet
*facet
)
4900 struct dpif_flow_stats stats
;
4902 ovs_assert(facet
->packet_count
>= facet
->prev_packet_count
);
4903 ovs_assert(facet
->byte_count
>= facet
->prev_byte_count
);
4904 ovs_assert(facet
->used
>= facet
->prev_used
);
4906 stats
.n_packets
= facet
->packet_count
- facet
->prev_packet_count
;
4907 stats
.n_bytes
= facet
->byte_count
- facet
->prev_byte_count
;
4908 stats
.used
= facet
->used
;
4909 stats
.tcp_flags
= 0;
4911 if (stats
.n_packets
|| stats
.n_bytes
|| facet
->used
> facet
->prev_used
) {
4912 facet
->prev_packet_count
= facet
->packet_count
;
4913 facet
->prev_byte_count
= facet
->byte_count
;
4914 facet
->prev_used
= facet
->used
;
4916 flow_push_stats(facet
, &stats
);
4918 update_mirror_stats(ofproto_dpif_cast(facet
->rule
->up
.ofproto
),
4919 facet
->mirrors
, stats
.n_packets
, stats
.n_bytes
);
4924 rule_credit_stats(struct rule_dpif
*rule
, const struct dpif_flow_stats
*stats
)
4926 rule
->packet_count
+= stats
->n_packets
;
4927 rule
->byte_count
+= stats
->n_bytes
;
4928 ofproto_rule_update_used(&rule
->up
, stats
->used
);
4931 /* Pushes flow statistics to the rules which 'facet->flow' resubmits
4932 * into given 'facet->rule''s actions and mirrors. */
4934 flow_push_stats(struct facet
*facet
, const struct dpif_flow_stats
*stats
)
4936 struct rule_dpif
*rule
= facet
->rule
;
4937 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
4938 struct subfacet
*subfacet
= CONTAINER_OF(list_front(&facet
->subfacets
),
4939 struct subfacet
, list_node
);
4940 struct action_xlate_ctx ctx
;
4942 ofproto_rule_update_used(&rule
->up
, stats
->used
);
4944 action_xlate_ctx_init(&ctx
, ofproto
, &facet
->flow
,
4945 &subfacet
->initial_vals
, rule
, 0, NULL
);
4946 ctx
.resubmit_stats
= stats
;
4947 xlate_actions_for_side_effects(&ctx
, rule
->up
.ofpacts
,
4948 rule
->up
.ofpacts_len
);
4953 static struct subfacet
*
4954 subfacet_find(struct ofproto_dpif
*ofproto
,
4955 const struct nlattr
*key
, size_t key_len
, uint32_t key_hash
)
4957 struct subfacet
*subfacet
;
4959 HMAP_FOR_EACH_WITH_HASH (subfacet
, hmap_node
, key_hash
,
4960 &ofproto
->subfacets
) {
4961 if (subfacet
->key_len
== key_len
4962 && !memcmp(key
, subfacet
->key
, key_len
)) {
4970 /* Searches 'facet' (within 'ofproto') for a subfacet with the specified
4971 * 'key_fitness', 'key', and 'key_len' members in 'miss'. Returns the
4972 * existing subfacet if there is one, otherwise creates and returns a
4975 * If the returned subfacet is new, then subfacet->actions will be NULL, in
4976 * which case the caller must populate the actions with
4977 * subfacet_make_actions(). */
4978 static struct subfacet
*
4979 subfacet_create(struct facet
*facet
, struct flow_miss
*miss
,
4982 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
4983 enum odp_key_fitness key_fitness
= miss
->key_fitness
;
4984 const struct nlattr
*key
= miss
->key
;
4985 size_t key_len
= miss
->key_len
;
4987 struct subfacet
*subfacet
;
4989 key_hash
= odp_flow_key_hash(key
, key_len
);
4991 if (list_is_empty(&facet
->subfacets
)) {
4992 subfacet
= &facet
->one_subfacet
;
4994 subfacet
= subfacet_find(ofproto
, key
, key_len
, key_hash
);
4996 if (subfacet
->facet
== facet
) {
5000 /* This shouldn't happen. */
5001 VLOG_ERR_RL(&rl
, "subfacet with wrong facet");
5002 subfacet_destroy(subfacet
);
5005 subfacet
= xmalloc(sizeof *subfacet
);
5008 hmap_insert(&ofproto
->subfacets
, &subfacet
->hmap_node
, key_hash
);
5009 list_push_back(&facet
->subfacets
, &subfacet
->list_node
);
5010 subfacet
->facet
= facet
;
5011 subfacet
->key_fitness
= key_fitness
;
5012 subfacet
->key
= xmemdup(key
, key_len
);
5013 subfacet
->key_len
= key_len
;
5014 subfacet
->used
= now
;
5015 subfacet
->dp_packet_count
= 0;
5016 subfacet
->dp_byte_count
= 0;
5017 subfacet
->actions_len
= 0;
5018 subfacet
->actions
= NULL
;
5019 subfacet
->slow
= (subfacet
->key_fitness
== ODP_FIT_TOO_LITTLE
5022 subfacet
->path
= SF_NOT_INSTALLED
;
5023 subfacet
->initial_vals
= miss
->initial_vals
;
5024 subfacet
->odp_in_port
= miss
->odp_in_port
;
5029 /* Uninstalls 'subfacet' from the datapath, if it is installed, removes it from
5030 * its facet within 'ofproto', and frees it. */
5032 subfacet_destroy__(struct subfacet
*subfacet
)
5034 struct facet
*facet
= subfacet
->facet
;
5035 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
5037 subfacet_uninstall(subfacet
);
5038 hmap_remove(&ofproto
->subfacets
, &subfacet
->hmap_node
);
5039 list_remove(&subfacet
->list_node
);
5040 free(subfacet
->key
);
5041 free(subfacet
->actions
);
5042 if (subfacet
!= &facet
->one_subfacet
) {
5047 /* Destroys 'subfacet', as with subfacet_destroy__(), and then if this was the
5048 * last remaining subfacet in its facet destroys the facet too. */
5050 subfacet_destroy(struct subfacet
*subfacet
)
5052 struct facet
*facet
= subfacet
->facet
;
5054 if (list_is_singleton(&facet
->subfacets
)) {
5055 /* facet_remove() needs at least one subfacet (it will remove it). */
5056 facet_remove(facet
);
5058 subfacet_destroy__(subfacet
);
5063 subfacet_destroy_batch(struct ofproto_dpif
*ofproto
,
5064 struct subfacet
**subfacets
, int n
)
5066 struct dpif_op ops
[SUBFACET_DESTROY_MAX_BATCH
];
5067 struct dpif_op
*opsp
[SUBFACET_DESTROY_MAX_BATCH
];
5068 struct dpif_flow_stats stats
[SUBFACET_DESTROY_MAX_BATCH
];
5071 for (i
= 0; i
< n
; i
++) {
5072 ops
[i
].type
= DPIF_OP_FLOW_DEL
;
5073 ops
[i
].u
.flow_del
.key
= subfacets
[i
]->key
;
5074 ops
[i
].u
.flow_del
.key_len
= subfacets
[i
]->key_len
;
5075 ops
[i
].u
.flow_del
.stats
= &stats
[i
];
5079 dpif_operate(ofproto
->backer
->dpif
, opsp
, n
);
5080 for (i
= 0; i
< n
; i
++) {
5081 subfacet_reset_dp_stats(subfacets
[i
], &stats
[i
]);
5082 subfacets
[i
]->path
= SF_NOT_INSTALLED
;
5083 subfacet_destroy(subfacets
[i
]);
5087 /* Composes the datapath actions for 'subfacet' based on its rule's actions.
5088 * Translates the actions into 'odp_actions', which the caller must have
5089 * initialized and is responsible for uninitializing. */
5091 subfacet_make_actions(struct subfacet
*subfacet
, const struct ofpbuf
*packet
,
5092 struct ofpbuf
*odp_actions
)
5094 struct facet
*facet
= subfacet
->facet
;
5095 struct rule_dpif
*rule
= facet
->rule
;
5096 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
5098 struct action_xlate_ctx ctx
;
5100 action_xlate_ctx_init(&ctx
, ofproto
, &facet
->flow
,
5101 &subfacet
->initial_vals
, rule
, 0, packet
);
5102 xlate_actions(&ctx
, rule
->up
.ofpacts
, rule
->up
.ofpacts_len
, odp_actions
);
5103 facet
->tags
= ctx
.tags
;
5104 facet
->has_learn
= ctx
.has_learn
;
5105 facet
->has_normal
= ctx
.has_normal
;
5106 facet
->has_fin_timeout
= ctx
.has_fin_timeout
;
5107 facet
->nf_flow
.output_iface
= ctx
.nf_output_iface
;
5108 facet
->mirrors
= ctx
.mirrors
;
5110 subfacet
->slow
= (subfacet
->slow
& SLOW_MATCH
) | ctx
.slow
;
5111 if (subfacet
->actions_len
!= odp_actions
->size
5112 || memcmp(subfacet
->actions
, odp_actions
->data
, odp_actions
->size
)) {
5113 free(subfacet
->actions
);
5114 subfacet
->actions_len
= odp_actions
->size
;
5115 subfacet
->actions
= xmemdup(odp_actions
->data
, odp_actions
->size
);
5119 /* Updates 'subfacet''s datapath flow, setting its actions to 'actions_len'
5120 * bytes of actions in 'actions'. If 'stats' is non-null, statistics counters
5121 * in the datapath will be zeroed and 'stats' will be updated with traffic new
5122 * since 'subfacet' was last updated.
5124 * Returns 0 if successful, otherwise a positive errno value. */
5126 subfacet_install(struct subfacet
*subfacet
,
5127 const struct nlattr
*actions
, size_t actions_len
,
5128 struct dpif_flow_stats
*stats
,
5129 enum slow_path_reason slow
)
5131 struct facet
*facet
= subfacet
->facet
;
5132 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(facet
->rule
->up
.ofproto
);
5133 enum subfacet_path path
= subfacet_want_path(slow
);
5134 uint64_t slow_path_stub
[128 / 8];
5135 enum dpif_flow_put_flags flags
;
5138 flags
= DPIF_FP_CREATE
| DPIF_FP_MODIFY
;
5140 flags
|= DPIF_FP_ZERO_STATS
;
5143 if (path
== SF_SLOW_PATH
) {
5144 compose_slow_path(ofproto
, &facet
->flow
, slow
,
5145 slow_path_stub
, sizeof slow_path_stub
,
5146 &actions
, &actions_len
);
5149 ret
= dpif_flow_put(ofproto
->backer
->dpif
, flags
, subfacet
->key
,
5150 subfacet
->key_len
, actions
, actions_len
, stats
);
5153 subfacet_reset_dp_stats(subfacet
, stats
);
5157 subfacet
->path
= path
;
5163 subfacet_reinstall(struct subfacet
*subfacet
, struct dpif_flow_stats
*stats
)
5165 return subfacet_install(subfacet
, subfacet
->actions
, subfacet
->actions_len
,
5166 stats
, subfacet
->slow
);
5169 /* If 'subfacet' is installed in the datapath, uninstalls it. */
5171 subfacet_uninstall(struct subfacet
*subfacet
)
5173 if (subfacet
->path
!= SF_NOT_INSTALLED
) {
5174 struct rule_dpif
*rule
= subfacet
->facet
->rule
;
5175 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
5176 struct dpif_flow_stats stats
;
5179 error
= dpif_flow_del(ofproto
->backer
->dpif
, subfacet
->key
,
5180 subfacet
->key_len
, &stats
);
5181 subfacet_reset_dp_stats(subfacet
, &stats
);
5183 subfacet_update_stats(subfacet
, &stats
);
5185 subfacet
->path
= SF_NOT_INSTALLED
;
5187 ovs_assert(subfacet
->dp_packet_count
== 0);
5188 ovs_assert(subfacet
->dp_byte_count
== 0);
5192 /* Resets 'subfacet''s datapath statistics counters. This should be called
5193 * when 'subfacet''s statistics are cleared in the datapath. If 'stats' is
5194 * non-null, it should contain the statistics returned by dpif when 'subfacet'
5195 * was reset in the datapath. 'stats' will be modified to include only
5196 * statistics new since 'subfacet' was last updated. */
5198 subfacet_reset_dp_stats(struct subfacet
*subfacet
,
5199 struct dpif_flow_stats
*stats
)
5202 && subfacet
->dp_packet_count
<= stats
->n_packets
5203 && subfacet
->dp_byte_count
<= stats
->n_bytes
) {
5204 stats
->n_packets
-= subfacet
->dp_packet_count
;
5205 stats
->n_bytes
-= subfacet
->dp_byte_count
;
5208 subfacet
->dp_packet_count
= 0;
5209 subfacet
->dp_byte_count
= 0;
5212 /* Updates 'subfacet''s used time. The caller is responsible for calling
5213 * facet_push_stats() to update the flows which 'subfacet' resubmits into. */
5215 subfacet_update_time(struct subfacet
*subfacet
, long long int used
)
5217 if (used
> subfacet
->used
) {
5218 subfacet
->used
= used
;
5219 facet_update_time(subfacet
->facet
, used
);
5223 /* Folds the statistics from 'stats' into the counters in 'subfacet'.
5225 * Because of the meaning of a subfacet's counters, it only makes sense to do
5226 * this if 'stats' are not tracked in the datapath, that is, if 'stats'
5227 * represents a packet that was sent by hand or if it represents statistics
5228 * that have been cleared out of the datapath. */
5230 subfacet_update_stats(struct subfacet
*subfacet
,
5231 const struct dpif_flow_stats
*stats
)
5233 if (stats
->n_packets
|| stats
->used
> subfacet
->used
) {
5234 struct facet
*facet
= subfacet
->facet
;
5236 subfacet_update_time(subfacet
, stats
->used
);
5237 facet
->packet_count
+= stats
->n_packets
;
5238 facet
->byte_count
+= stats
->n_bytes
;
5239 facet
->tcp_flags
|= stats
->tcp_flags
;
5240 facet_push_stats(facet
);
5241 netflow_flow_update_flags(&facet
->nf_flow
, stats
->tcp_flags
);
5247 static struct rule_dpif
*
5248 rule_dpif_lookup(struct ofproto_dpif
*ofproto
, const struct flow
*flow
)
5250 struct rule_dpif
*rule
;
5252 rule
= rule_dpif_lookup__(ofproto
, flow
, 0);
5257 return rule_dpif_miss_rule(ofproto
, flow
);
5260 static struct rule_dpif
*
5261 rule_dpif_lookup__(struct ofproto_dpif
*ofproto
, const struct flow
*flow
,
5264 struct cls_rule
*cls_rule
;
5265 struct classifier
*cls
;
5267 if (table_id
>= N_TABLES
) {
5271 cls
= &ofproto
->up
.tables
[table_id
].cls
;
5272 if (flow
->nw_frag
& FLOW_NW_FRAG_ANY
5273 && ofproto
->up
.frag_handling
== OFPC_FRAG_NORMAL
) {
5274 /* For OFPC_NORMAL frag_handling, we must pretend that transport ports
5275 * are unavailable. */
5276 struct flow ofpc_normal_flow
= *flow
;
5277 ofpc_normal_flow
.tp_src
= htons(0);
5278 ofpc_normal_flow
.tp_dst
= htons(0);
5279 cls_rule
= classifier_lookup(cls
, &ofpc_normal_flow
);
5281 cls_rule
= classifier_lookup(cls
, flow
);
5283 return rule_dpif_cast(rule_from_cls_rule(cls_rule
));
5286 static struct rule_dpif
*
5287 rule_dpif_miss_rule(struct ofproto_dpif
*ofproto
, const struct flow
*flow
)
5289 struct ofport_dpif
*port
;
5291 port
= get_ofp_port(ofproto
, flow
->in_port
);
5293 VLOG_WARN_RL(&rl
, "packet-in on unknown port %"PRIu16
, flow
->in_port
);
5294 return ofproto
->miss_rule
;
5297 if (port
->up
.pp
.config
& OFPUTIL_PC_NO_PACKET_IN
) {
5298 return ofproto
->no_packet_in_rule
;
5300 return ofproto
->miss_rule
;
5304 complete_operation(struct rule_dpif
*rule
)
5306 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
5308 rule_invalidate(rule
);
5310 struct dpif_completion
*c
= xmalloc(sizeof *c
);
5311 c
->op
= rule
->up
.pending
;
5312 list_push_back(&ofproto
->completions
, &c
->list_node
);
5314 ofoperation_complete(rule
->up
.pending
, 0);
5318 static struct rule
*
5321 struct rule_dpif
*rule
= xmalloc(sizeof *rule
);
5326 rule_dealloc(struct rule
*rule_
)
5328 struct rule_dpif
*rule
= rule_dpif_cast(rule_
);
5333 rule_construct(struct rule
*rule_
)
5335 struct rule_dpif
*rule
= rule_dpif_cast(rule_
);
5336 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
5337 struct rule_dpif
*victim
;
5340 rule
->packet_count
= 0;
5341 rule
->byte_count
= 0;
5343 victim
= rule_dpif_cast(ofoperation_get_victim(rule
->up
.pending
));
5344 if (victim
&& !list_is_empty(&victim
->facets
)) {
5345 struct facet
*facet
;
5347 rule
->facets
= victim
->facets
;
5348 list_moved(&rule
->facets
);
5349 LIST_FOR_EACH (facet
, list_node
, &rule
->facets
) {
5350 /* XXX: We're only clearing our local counters here. It's possible
5351 * that quite a few packets are unaccounted for in the datapath
5352 * statistics. These will be accounted to the new rule instead of
5353 * cleared as required. This could be fixed by clearing out the
5354 * datapath statistics for this facet, but currently it doesn't
5356 facet_reset_counters(facet
);
5360 /* Must avoid list_moved() in this case. */
5361 list_init(&rule
->facets
);
5364 table_id
= rule
->up
.table_id
;
5366 rule
->tag
= victim
->tag
;
5367 } else if (table_id
== 0) {
5372 miniflow_expand(&rule
->up
.cr
.match
.flow
, &flow
);
5373 rule
->tag
= rule_calculate_tag(&flow
, &rule
->up
.cr
.match
.mask
,
5374 ofproto
->tables
[table_id
].basis
);
5377 complete_operation(rule
);
5382 rule_destruct(struct rule
*rule_
)
5384 struct rule_dpif
*rule
= rule_dpif_cast(rule_
);
5385 struct facet
*facet
, *next_facet
;
5387 LIST_FOR_EACH_SAFE (facet
, next_facet
, list_node
, &rule
->facets
) {
5388 facet_revalidate(facet
);
5391 complete_operation(rule
);
5395 rule_get_stats(struct rule
*rule_
, uint64_t *packets
, uint64_t *bytes
)
5397 struct rule_dpif
*rule
= rule_dpif_cast(rule_
);
5398 struct facet
*facet
;
5400 /* Start from historical data for 'rule' itself that are no longer tracked
5401 * in facets. This counts, for example, facets that have expired. */
5402 *packets
= rule
->packet_count
;
5403 *bytes
= rule
->byte_count
;
5405 /* Add any statistics that are tracked by facets. This includes
5406 * statistical data recently updated by ofproto_update_stats() as well as
5407 * stats for packets that were executed "by hand" via dpif_execute(). */
5408 LIST_FOR_EACH (facet
, list_node
, &rule
->facets
) {
5409 *packets
+= facet
->packet_count
;
5410 *bytes
+= facet
->byte_count
;
5415 rule_dpif_execute(struct rule_dpif
*rule
, const struct flow
*flow
,
5416 struct ofpbuf
*packet
)
5418 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
5419 struct initial_vals initial_vals
;
5420 struct dpif_flow_stats stats
;
5421 struct action_xlate_ctx ctx
;
5422 uint64_t odp_actions_stub
[1024 / 8];
5423 struct ofpbuf odp_actions
;
5425 dpif_flow_stats_extract(flow
, packet
, time_msec(), &stats
);
5426 rule_credit_stats(rule
, &stats
);
5428 initial_vals
.vlan_tci
= flow
->vlan_tci
;
5429 initial_vals
.tunnel_ip_tos
= flow
->tunnel
.ip_tos
;
5430 ofpbuf_use_stub(&odp_actions
, odp_actions_stub
, sizeof odp_actions_stub
);
5431 action_xlate_ctx_init(&ctx
, ofproto
, flow
, &initial_vals
,
5432 rule
, stats
.tcp_flags
, packet
);
5433 ctx
.resubmit_stats
= &stats
;
5434 xlate_actions(&ctx
, rule
->up
.ofpacts
, rule
->up
.ofpacts_len
, &odp_actions
);
5436 execute_odp_actions(ofproto
, flow
, odp_actions
.data
,
5437 odp_actions
.size
, packet
);
5439 ofpbuf_uninit(&odp_actions
);
5443 rule_execute(struct rule
*rule
, const struct flow
*flow
,
5444 struct ofpbuf
*packet
)
5446 rule_dpif_execute(rule_dpif_cast(rule
), flow
, packet
);
5447 ofpbuf_delete(packet
);
5452 rule_modify_actions(struct rule
*rule_
)
5454 struct rule_dpif
*rule
= rule_dpif_cast(rule_
);
5456 complete_operation(rule
);
5459 /* Sends 'packet' out 'ofport'.
5460 * May modify 'packet'.
5461 * Returns 0 if successful, otherwise a positive errno value. */
5463 send_packet(const struct ofport_dpif
*ofport
, struct ofpbuf
*packet
)
5465 const struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
5466 uint64_t odp_actions_stub
[1024 / 8];
5467 struct ofpbuf key
, odp_actions
;
5468 struct odputil_keybuf keybuf
;
5473 flow_extract(packet
, 0, 0, NULL
, OFPP_LOCAL
, &flow
);
5474 if (netdev_vport_is_patch(ofport
->up
.netdev
)) {
5475 struct ofproto_dpif
*peer_ofproto
;
5476 struct dpif_flow_stats stats
;
5477 struct ofport_dpif
*peer
;
5478 struct rule_dpif
*rule
;
5480 peer
= ofport_get_peer(ofport
);
5485 dpif_flow_stats_extract(&flow
, packet
, time_msec(), &stats
);
5486 netdev_vport_inc_tx(ofport
->up
.netdev
, &stats
);
5487 netdev_vport_inc_rx(peer
->up
.netdev
, &stats
);
5489 flow
.in_port
= peer
->up
.ofp_port
;
5490 peer_ofproto
= ofproto_dpif_cast(peer
->up
.ofproto
);
5491 rule
= rule_dpif_lookup(peer_ofproto
, &flow
);
5492 rule_dpif_execute(rule
, &flow
, packet
);
5497 ofpbuf_use_stub(&odp_actions
, odp_actions_stub
, sizeof odp_actions_stub
);
5499 if (ofport
->tnl_port
) {
5500 struct dpif_flow_stats stats
;
5502 odp_port
= tnl_port_send(ofport
->tnl_port
, &flow
);
5503 if (odp_port
== OVSP_NONE
) {
5507 dpif_flow_stats_extract(&flow
, packet
, time_msec(), &stats
);
5508 netdev_vport_inc_tx(ofport
->up
.netdev
, &stats
);
5509 odp_put_tunnel_action(&flow
.tunnel
, &odp_actions
);
5510 odp_put_skb_mark_action(flow
.skb_mark
, &odp_actions
);
5512 odp_port
= vsp_realdev_to_vlandev(ofproto
, ofport
->odp_port
,
5514 if (odp_port
!= ofport
->odp_port
) {
5515 eth_pop_vlan(packet
);
5516 flow
.vlan_tci
= htons(0);
5520 ofpbuf_use_stack(&key
, &keybuf
, sizeof keybuf
);
5521 odp_flow_key_from_flow(&key
, &flow
,
5522 ofp_port_to_odp_port(ofproto
, flow
.in_port
));
5524 compose_sflow_action(ofproto
, &odp_actions
, &flow
, odp_port
);
5526 nl_msg_put_u32(&odp_actions
, OVS_ACTION_ATTR_OUTPUT
, odp_port
);
5527 error
= dpif_execute(ofproto
->backer
->dpif
,
5529 odp_actions
.data
, odp_actions
.size
,
5531 ofpbuf_uninit(&odp_actions
);
5534 VLOG_WARN_RL(&rl
, "%s: failed to send packet on port %"PRIu32
" (%s)",
5535 ofproto
->up
.name
, odp_port
, strerror(error
));
5537 ofproto_update_local_port_stats(ofport
->up
.ofproto
, packet
->size
, 0);
5541 /* OpenFlow to datapath action translation. */
5543 static bool may_receive(const struct ofport_dpif
*, struct action_xlate_ctx
*);
5544 static void do_xlate_actions(const struct ofpact
*, size_t ofpacts_len
,
5545 struct action_xlate_ctx
*);
5546 static void xlate_normal(struct action_xlate_ctx
*);
5548 /* Composes an ODP action for a "slow path" action for 'flow' within 'ofproto'.
5549 * The action will state 'slow' as the reason that the action is in the slow
5550 * path. (This is purely informational: it allows a human viewing "ovs-dpctl
5551 * dump-flows" output to see why a flow is in the slow path.)
5553 * The 'stub_size' bytes in 'stub' will be used to store the action.
5554 * 'stub_size' must be large enough for the action.
5556 * The action and its size will be stored in '*actionsp' and '*actions_lenp',
5559 compose_slow_path(const struct ofproto_dpif
*ofproto
, const struct flow
*flow
,
5560 enum slow_path_reason slow
,
5561 uint64_t *stub
, size_t stub_size
,
5562 const struct nlattr
**actionsp
, size_t *actions_lenp
)
5564 union user_action_cookie cookie
;
5567 cookie
.type
= USER_ACTION_COOKIE_SLOW_PATH
;
5568 cookie
.slow_path
.unused
= 0;
5569 cookie
.slow_path
.reason
= slow
;
5571 ofpbuf_use_stack(&buf
, stub
, stub_size
);
5572 if (slow
& (SLOW_CFM
| SLOW_LACP
| SLOW_STP
)) {
5573 uint32_t pid
= dpif_port_get_pid(ofproto
->backer
->dpif
, UINT32_MAX
);
5574 odp_put_userspace_action(pid
, &cookie
, sizeof cookie
, &buf
);
5576 put_userspace_action(ofproto
, &buf
, flow
, &cookie
);
5578 *actionsp
= buf
.data
;
5579 *actions_lenp
= buf
.size
;
5583 put_userspace_action(const struct ofproto_dpif
*ofproto
,
5584 struct ofpbuf
*odp_actions
,
5585 const struct flow
*flow
,
5586 const union user_action_cookie
*cookie
)
5590 pid
= dpif_port_get_pid(ofproto
->backer
->dpif
,
5591 ofp_port_to_odp_port(ofproto
, flow
->in_port
));
5593 return odp_put_userspace_action(pid
, cookie
, sizeof *cookie
, odp_actions
);
5597 compose_sflow_cookie(const struct ofproto_dpif
*ofproto
,
5598 ovs_be16 vlan_tci
, uint32_t odp_port
,
5599 unsigned int n_outputs
, union user_action_cookie
*cookie
)
5603 cookie
->type
= USER_ACTION_COOKIE_SFLOW
;
5604 cookie
->sflow
.vlan_tci
= vlan_tci
;
5606 /* See http://www.sflow.org/sflow_version_5.txt (search for "Input/output
5607 * port information") for the interpretation of cookie->output. */
5608 switch (n_outputs
) {
5610 /* 0x40000000 | 256 means "packet dropped for unknown reason". */
5611 cookie
->sflow
.output
= 0x40000000 | 256;
5615 ifindex
= dpif_sflow_odp_port_to_ifindex(ofproto
->sflow
, odp_port
);
5617 cookie
->sflow
.output
= ifindex
;
5622 /* 0x80000000 means "multiple output ports. */
5623 cookie
->sflow
.output
= 0x80000000 | n_outputs
;
5628 /* Compose SAMPLE action for sFlow. */
5630 compose_sflow_action(const struct ofproto_dpif
*ofproto
,
5631 struct ofpbuf
*odp_actions
,
5632 const struct flow
*flow
,
5635 uint32_t probability
;
5636 union user_action_cookie cookie
;
5637 size_t sample_offset
, actions_offset
;
5640 if (!ofproto
->sflow
|| flow
->in_port
== OFPP_NONE
) {
5644 sample_offset
= nl_msg_start_nested(odp_actions
, OVS_ACTION_ATTR_SAMPLE
);
5646 /* Number of packets out of UINT_MAX to sample. */
5647 probability
= dpif_sflow_get_probability(ofproto
->sflow
);
5648 nl_msg_put_u32(odp_actions
, OVS_SAMPLE_ATTR_PROBABILITY
, probability
);
5650 actions_offset
= nl_msg_start_nested(odp_actions
, OVS_SAMPLE_ATTR_ACTIONS
);
5651 compose_sflow_cookie(ofproto
, htons(0), odp_port
,
5652 odp_port
== OVSP_NONE
? 0 : 1, &cookie
);
5653 cookie_offset
= put_userspace_action(ofproto
, odp_actions
, flow
, &cookie
);
5655 nl_msg_end_nested(odp_actions
, actions_offset
);
5656 nl_msg_end_nested(odp_actions
, sample_offset
);
5657 return cookie_offset
;
5660 /* SAMPLE action must be first action in any given list of actions.
5661 * At this point we do not have all information required to build it. So try to
5662 * build sample action as complete as possible. */
5664 add_sflow_action(struct action_xlate_ctx
*ctx
)
5666 ctx
->user_cookie_offset
= compose_sflow_action(ctx
->ofproto
,
5668 &ctx
->flow
, OVSP_NONE
);
5669 ctx
->sflow_odp_port
= 0;
5670 ctx
->sflow_n_outputs
= 0;
5673 /* Fix SAMPLE action according to data collected while composing ODP actions.
5674 * We need to fix SAMPLE actions OVS_SAMPLE_ATTR_ACTIONS attribute, i.e. nested
5675 * USERSPACE action's user-cookie which is required for sflow. */
5677 fix_sflow_action(struct action_xlate_ctx
*ctx
)
5679 const struct flow
*base
= &ctx
->base_flow
;
5680 union user_action_cookie
*cookie
;
5682 if (!ctx
->user_cookie_offset
) {
5686 cookie
= ofpbuf_at(ctx
->odp_actions
, ctx
->user_cookie_offset
,
5688 ovs_assert(cookie
->type
== USER_ACTION_COOKIE_SFLOW
);
5690 compose_sflow_cookie(ctx
->ofproto
, base
->vlan_tci
,
5691 ctx
->sflow_odp_port
, ctx
->sflow_n_outputs
, cookie
);
5695 compose_output_action__(struct action_xlate_ctx
*ctx
, uint16_t ofp_port
,
5698 const struct ofport_dpif
*ofport
= get_ofp_port(ctx
->ofproto
, ofp_port
);
5699 ovs_be16 flow_vlan_tci
= ctx
->flow
.vlan_tci
;
5700 ovs_be64 flow_tun_id
= ctx
->flow
.tunnel
.tun_id
;
5701 uint8_t flow_nw_tos
= ctx
->flow
.nw_tos
;
5702 struct priority_to_dscp
*pdscp
;
5703 uint32_t out_port
, odp_port
;
5705 /* If 'struct flow' gets additional metadata, we'll need to zero it out
5706 * before traversing a patch port. */
5707 BUILD_ASSERT_DECL(FLOW_WC_SEQ
== 19);
5710 xlate_report(ctx
, "Nonexistent output port");
5712 } else if (ofport
->up
.pp
.config
& OFPUTIL_PC_NO_FWD
) {
5713 xlate_report(ctx
, "OFPPC_NO_FWD set, skipping output");
5715 } else if (check_stp
&& !stp_forward_in_state(ofport
->stp_state
)) {
5716 xlate_report(ctx
, "STP not in forwarding state, skipping output");
5720 if (netdev_vport_is_patch(ofport
->up
.netdev
)) {
5721 struct ofport_dpif
*peer
= ofport_get_peer(ofport
);
5722 struct flow old_flow
= ctx
->flow
;
5723 const struct ofproto_dpif
*peer_ofproto
;
5724 enum slow_path_reason special
;
5725 struct ofport_dpif
*in_port
;
5728 xlate_report(ctx
, "Nonexistent patch port peer");
5732 peer_ofproto
= ofproto_dpif_cast(peer
->up
.ofproto
);
5733 if (peer_ofproto
->backer
!= ctx
->ofproto
->backer
) {
5734 xlate_report(ctx
, "Patch port peer on a different datapath");
5738 ctx
->ofproto
= ofproto_dpif_cast(peer
->up
.ofproto
);
5739 ctx
->flow
.in_port
= peer
->up
.ofp_port
;
5740 ctx
->flow
.metadata
= htonll(0);
5741 memset(&ctx
->flow
.tunnel
, 0, sizeof ctx
->flow
.tunnel
);
5742 memset(ctx
->flow
.regs
, 0, sizeof ctx
->flow
.regs
);
5744 in_port
= get_ofp_port(ctx
->ofproto
, ctx
->flow
.in_port
);
5745 special
= process_special(ctx
->ofproto
, &ctx
->flow
, in_port
,
5748 ctx
->slow
|= special
;
5749 } else if (!in_port
|| may_receive(in_port
, ctx
)) {
5750 if (!in_port
|| stp_forward_in_state(in_port
->stp_state
)) {
5751 xlate_table_action(ctx
, ctx
->flow
.in_port
, 0, true);
5753 /* Forwarding is disabled by STP. Let OFPP_NORMAL and the
5754 * learning action look at the packet, then drop it. */
5755 struct flow old_base_flow
= ctx
->base_flow
;
5756 size_t old_size
= ctx
->odp_actions
->size
;
5757 xlate_table_action(ctx
, ctx
->flow
.in_port
, 0, true);
5758 ctx
->base_flow
= old_base_flow
;
5759 ctx
->odp_actions
->size
= old_size
;
5763 ctx
->flow
= old_flow
;
5764 ctx
->ofproto
= ofproto_dpif_cast(ofport
->up
.ofproto
);
5766 if (ctx
->resubmit_stats
) {
5767 netdev_vport_inc_tx(ofport
->up
.netdev
, ctx
->resubmit_stats
);
5768 netdev_vport_inc_rx(peer
->up
.netdev
, ctx
->resubmit_stats
);
5774 pdscp
= get_priority(ofport
, ctx
->flow
.skb_priority
);
5776 ctx
->flow
.nw_tos
&= ~IP_DSCP_MASK
;
5777 ctx
->flow
.nw_tos
|= pdscp
->dscp
;
5780 odp_port
= ofp_port_to_odp_port(ctx
->ofproto
, ofp_port
);
5781 if (ofport
->tnl_port
) {
5782 odp_port
= tnl_port_send(ofport
->tnl_port
, &ctx
->flow
);
5783 if (odp_port
== OVSP_NONE
) {
5784 xlate_report(ctx
, "Tunneling decided against output");
5788 if (ctx
->resubmit_stats
) {
5789 netdev_vport_inc_tx(ofport
->up
.netdev
, ctx
->resubmit_stats
);
5791 out_port
= odp_port
;
5792 commit_odp_tunnel_action(&ctx
->flow
, &ctx
->base_flow
,
5795 out_port
= vsp_realdev_to_vlandev(ctx
->ofproto
, odp_port
,
5796 ctx
->flow
.vlan_tci
);
5797 if (out_port
!= odp_port
) {
5798 ctx
->flow
.vlan_tci
= htons(0);
5801 commit_odp_actions(&ctx
->flow
, &ctx
->base_flow
, ctx
->odp_actions
);
5802 nl_msg_put_u32(ctx
->odp_actions
, OVS_ACTION_ATTR_OUTPUT
, out_port
);
5804 ctx
->sflow_odp_port
= odp_port
;
5805 ctx
->sflow_n_outputs
++;
5806 ctx
->nf_output_iface
= ofp_port
;
5807 ctx
->flow
.tunnel
.tun_id
= flow_tun_id
;
5808 ctx
->flow
.vlan_tci
= flow_vlan_tci
;
5809 ctx
->flow
.nw_tos
= flow_nw_tos
;
5813 compose_output_action(struct action_xlate_ctx
*ctx
, uint16_t ofp_port
)
5815 compose_output_action__(ctx
, ofp_port
, true);
5819 xlate_table_action(struct action_xlate_ctx
*ctx
,
5820 uint16_t in_port
, uint8_t table_id
, bool may_packet_in
)
5822 if (ctx
->recurse
< MAX_RESUBMIT_RECURSION
) {
5823 struct ofproto_dpif
*ofproto
= ctx
->ofproto
;
5824 struct rule_dpif
*rule
;
5825 uint16_t old_in_port
;
5826 uint8_t old_table_id
;
5828 old_table_id
= ctx
->table_id
;
5829 ctx
->table_id
= table_id
;
5831 /* Look up a flow with 'in_port' as the input port. */
5832 old_in_port
= ctx
->flow
.in_port
;
5833 ctx
->flow
.in_port
= in_port
;
5834 rule
= rule_dpif_lookup__(ofproto
, &ctx
->flow
, table_id
);
5837 if (table_id
> 0 && table_id
< N_TABLES
) {
5838 struct table_dpif
*table
= &ofproto
->tables
[table_id
];
5839 if (table
->other_table
) {
5840 ctx
->tags
|= (rule
&& rule
->tag
5842 : rule_calculate_tag(&ctx
->flow
,
5843 &table
->other_table
->mask
,
5848 /* Restore the original input port. Otherwise OFPP_NORMAL and
5849 * OFPP_IN_PORT will have surprising behavior. */
5850 ctx
->flow
.in_port
= old_in_port
;
5852 if (ctx
->resubmit_hook
) {
5853 ctx
->resubmit_hook(ctx
, rule
);
5856 if (rule
== NULL
&& may_packet_in
) {
5858 * check if table configuration flags
5859 * OFPTC_TABLE_MISS_CONTROLLER, default.
5860 * OFPTC_TABLE_MISS_CONTINUE,
5861 * OFPTC_TABLE_MISS_DROP
5862 * When OF1.0, OFPTC_TABLE_MISS_CONTINUE is used. What to do?
5864 rule
= rule_dpif_miss_rule(ofproto
, &ctx
->flow
);
5868 struct rule_dpif
*old_rule
= ctx
->rule
;
5870 if (ctx
->resubmit_stats
) {
5871 rule_credit_stats(rule
, ctx
->resubmit_stats
);
5876 do_xlate_actions(rule
->up
.ofpacts
, rule
->up
.ofpacts_len
, ctx
);
5877 ctx
->rule
= old_rule
;
5881 ctx
->table_id
= old_table_id
;
5883 static struct vlog_rate_limit recurse_rl
= VLOG_RATE_LIMIT_INIT(1, 1);
5885 VLOG_ERR_RL(&recurse_rl
, "resubmit actions recursed over %d times",
5886 MAX_RESUBMIT_RECURSION
);
5887 ctx
->max_resubmit_trigger
= true;
5892 xlate_ofpact_resubmit(struct action_xlate_ctx
*ctx
,
5893 const struct ofpact_resubmit
*resubmit
)
5898 in_port
= resubmit
->in_port
;
5899 if (in_port
== OFPP_IN_PORT
) {
5900 in_port
= ctx
->flow
.in_port
;
5903 table_id
= resubmit
->table_id
;
5904 if (table_id
== 255) {
5905 table_id
= ctx
->table_id
;
5908 xlate_table_action(ctx
, in_port
, table_id
, false);
5912 flood_packets(struct action_xlate_ctx
*ctx
, bool all
)
5914 struct ofport_dpif
*ofport
;
5916 HMAP_FOR_EACH (ofport
, up
.hmap_node
, &ctx
->ofproto
->up
.ports
) {
5917 uint16_t ofp_port
= ofport
->up
.ofp_port
;
5919 if (ofp_port
== ctx
->flow
.in_port
) {
5924 compose_output_action__(ctx
, ofp_port
, false);
5925 } else if (!(ofport
->up
.pp
.config
& OFPUTIL_PC_NO_FLOOD
)) {
5926 compose_output_action(ctx
, ofp_port
);
5930 ctx
->nf_output_iface
= NF_OUT_FLOOD
;
5934 execute_controller_action(struct action_xlate_ctx
*ctx
, int len
,
5935 enum ofp_packet_in_reason reason
,
5936 uint16_t controller_id
)
5938 struct ofputil_packet_in pin
;
5939 struct ofpbuf
*packet
;
5941 ctx
->slow
|= SLOW_CONTROLLER
;
5946 packet
= ofpbuf_clone(ctx
->packet
);
5948 if (packet
->l2
&& packet
->l3
) {
5949 struct eth_header
*eh
;
5950 uint16_t mpls_depth
;
5952 eth_pop_vlan(packet
);
5955 memcpy(eh
->eth_src
, ctx
->flow
.dl_src
, sizeof eh
->eth_src
);
5956 memcpy(eh
->eth_dst
, ctx
->flow
.dl_dst
, sizeof eh
->eth_dst
);
5958 if (ctx
->flow
.vlan_tci
& htons(VLAN_CFI
)) {
5959 eth_push_vlan(packet
, ctx
->flow
.vlan_tci
);
5962 mpls_depth
= eth_mpls_depth(packet
);
5964 if (mpls_depth
< ctx
->flow
.mpls_depth
) {
5965 push_mpls(packet
, ctx
->flow
.dl_type
, ctx
->flow
.mpls_lse
);
5966 } else if (mpls_depth
> ctx
->flow
.mpls_depth
) {
5967 pop_mpls(packet
, ctx
->flow
.dl_type
);
5968 } else if (mpls_depth
) {
5969 set_mpls_lse(packet
, ctx
->flow
.mpls_lse
);
5973 if (ctx
->flow
.dl_type
== htons(ETH_TYPE_IP
)) {
5974 packet_set_ipv4(packet
, ctx
->flow
.nw_src
, ctx
->flow
.nw_dst
,
5975 ctx
->flow
.nw_tos
, ctx
->flow
.nw_ttl
);
5979 if (ctx
->flow
.nw_proto
== IPPROTO_TCP
) {
5980 packet_set_tcp_port(packet
, ctx
->flow
.tp_src
,
5982 } else if (ctx
->flow
.nw_proto
== IPPROTO_UDP
) {
5983 packet_set_udp_port(packet
, ctx
->flow
.tp_src
,
5990 pin
.packet
= packet
->data
;
5991 pin
.packet_len
= packet
->size
;
5992 pin
.reason
= reason
;
5993 pin
.controller_id
= controller_id
;
5994 pin
.table_id
= ctx
->table_id
;
5995 pin
.cookie
= ctx
->rule
? ctx
->rule
->up
.flow_cookie
: 0;
5998 flow_get_metadata(&ctx
->flow
, &pin
.fmd
);
6000 connmgr_send_packet_in(ctx
->ofproto
->up
.connmgr
, &pin
);
6001 ofpbuf_delete(packet
);
6005 execute_mpls_push_action(struct action_xlate_ctx
*ctx
, ovs_be16 eth_type
)
6007 ovs_assert(eth_type_mpls(eth_type
));
6009 if (ctx
->base_flow
.mpls_depth
) {
6010 ctx
->flow
.mpls_lse
&= ~htonl(MPLS_BOS_MASK
);
6011 ctx
->flow
.mpls_depth
++;
6016 if (ctx
->flow
.dl_type
== htons(ETH_TYPE_IPV6
)) {
6017 label
= htonl(0x2); /* IPV6 Explicit Null. */
6019 label
= htonl(0x0); /* IPV4 Explicit Null. */
6021 tc
= (ctx
->flow
.nw_tos
& IP_DSCP_MASK
) >> 2;
6022 ttl
= ctx
->flow
.nw_ttl
? ctx
->flow
.nw_ttl
: 0x40;
6023 ctx
->flow
.mpls_lse
= set_mpls_lse_values(ttl
, tc
, 1, label
);
6024 ctx
->flow
.encap_dl_type
= ctx
->flow
.dl_type
;
6025 ctx
->flow
.mpls_depth
= 1;
6027 ctx
->flow
.dl_type
= eth_type
;
6031 execute_mpls_pop_action(struct action_xlate_ctx
*ctx
, ovs_be16 eth_type
)
6033 ovs_assert(eth_type_mpls(ctx
->flow
.dl_type
));
6034 ovs_assert(!eth_type_mpls(eth_type
));
6036 if (ctx
->flow
.mpls_depth
) {
6037 ctx
->flow
.mpls_depth
--;
6038 ctx
->flow
.mpls_lse
= htonl(0);
6039 if (!ctx
->flow
.mpls_depth
) {
6040 ctx
->flow
.dl_type
= eth_type
;
6041 ctx
->flow
.encap_dl_type
= htons(0);
6047 compose_dec_ttl(struct action_xlate_ctx
*ctx
, struct ofpact_cnt_ids
*ids
)
6049 if (ctx
->flow
.dl_type
!= htons(ETH_TYPE_IP
) &&
6050 ctx
->flow
.dl_type
!= htons(ETH_TYPE_IPV6
)) {
6054 if (ctx
->flow
.nw_ttl
> 1) {
6060 for (i
= 0; i
< ids
->n_controllers
; i
++) {
6061 execute_controller_action(ctx
, UINT16_MAX
, OFPR_INVALID_TTL
,
6065 /* Stop processing for current table. */
6071 execute_set_mpls_ttl_action(struct action_xlate_ctx
*ctx
, uint8_t ttl
)
6073 if (!eth_type_mpls(ctx
->flow
.dl_type
)) {
6077 set_mpls_lse_ttl(&ctx
->flow
.mpls_lse
, ttl
);
6082 execute_dec_mpls_ttl_action(struct action_xlate_ctx
*ctx
)
6084 uint8_t ttl
= mpls_lse_to_ttl(ctx
->flow
.mpls_lse
);
6086 if (!eth_type_mpls(ctx
->flow
.dl_type
)) {
6092 set_mpls_lse_ttl(&ctx
->flow
.mpls_lse
, ttl
);
6095 execute_controller_action(ctx
, UINT16_MAX
, OFPR_INVALID_TTL
, 0);
6097 /* Stop processing for current table. */
6103 xlate_output_action(struct action_xlate_ctx
*ctx
,
6104 uint16_t port
, uint16_t max_len
, bool may_packet_in
)
6106 uint16_t prev_nf_output_iface
= ctx
->nf_output_iface
;
6108 ctx
->nf_output_iface
= NF_OUT_DROP
;
6112 compose_output_action(ctx
, ctx
->flow
.in_port
);
6115 xlate_table_action(ctx
, ctx
->flow
.in_port
, 0, may_packet_in
);
6121 flood_packets(ctx
, false);
6124 flood_packets(ctx
, true);
6126 case OFPP_CONTROLLER
:
6127 execute_controller_action(ctx
, max_len
, OFPR_ACTION
, 0);
6133 if (port
!= ctx
->flow
.in_port
) {
6134 compose_output_action(ctx
, port
);
6136 xlate_report(ctx
, "skipping output to input port");
6141 if (prev_nf_output_iface
== NF_OUT_FLOOD
) {
6142 ctx
->nf_output_iface
= NF_OUT_FLOOD
;
6143 } else if (ctx
->nf_output_iface
== NF_OUT_DROP
) {
6144 ctx
->nf_output_iface
= prev_nf_output_iface
;
6145 } else if (prev_nf_output_iface
!= NF_OUT_DROP
&&
6146 ctx
->nf_output_iface
!= NF_OUT_FLOOD
) {
6147 ctx
->nf_output_iface
= NF_OUT_MULTI
;
6152 xlate_output_reg_action(struct action_xlate_ctx
*ctx
,
6153 const struct ofpact_output_reg
*or)
6155 uint64_t port
= mf_get_subfield(&or->src
, &ctx
->flow
);
6156 if (port
<= UINT16_MAX
) {
6157 xlate_output_action(ctx
, port
, or->max_len
, false);
6162 xlate_enqueue_action(struct action_xlate_ctx
*ctx
,
6163 const struct ofpact_enqueue
*enqueue
)
6165 uint16_t ofp_port
= enqueue
->port
;
6166 uint32_t queue_id
= enqueue
->queue
;
6167 uint32_t flow_priority
, priority
;
6170 /* Translate queue to priority. */
6171 error
= dpif_queue_to_priority(ctx
->ofproto
->backer
->dpif
,
6172 queue_id
, &priority
);
6174 /* Fall back to ordinary output action. */
6175 xlate_output_action(ctx
, enqueue
->port
, 0, false);
6179 /* Check output port. */
6180 if (ofp_port
== OFPP_IN_PORT
) {
6181 ofp_port
= ctx
->flow
.in_port
;
6182 } else if (ofp_port
== ctx
->flow
.in_port
) {
6186 /* Add datapath actions. */
6187 flow_priority
= ctx
->flow
.skb_priority
;
6188 ctx
->flow
.skb_priority
= priority
;
6189 compose_output_action(ctx
, ofp_port
);
6190 ctx
->flow
.skb_priority
= flow_priority
;
6192 /* Update NetFlow output port. */
6193 if (ctx
->nf_output_iface
== NF_OUT_DROP
) {
6194 ctx
->nf_output_iface
= ofp_port
;
6195 } else if (ctx
->nf_output_iface
!= NF_OUT_FLOOD
) {
6196 ctx
->nf_output_iface
= NF_OUT_MULTI
;
6201 xlate_set_queue_action(struct action_xlate_ctx
*ctx
, uint32_t queue_id
)
6203 uint32_t skb_priority
;
6205 if (!dpif_queue_to_priority(ctx
->ofproto
->backer
->dpif
,
6206 queue_id
, &skb_priority
)) {
6207 ctx
->flow
.skb_priority
= skb_priority
;
6209 /* Couldn't translate queue to a priority. Nothing to do. A warning
6210 * has already been logged. */
6214 struct xlate_reg_state
{
6220 slave_enabled_cb(uint16_t ofp_port
, void *ofproto_
)
6222 struct ofproto_dpif
*ofproto
= ofproto_
;
6223 struct ofport_dpif
*port
;
6233 case OFPP_CONTROLLER
: /* Not supported by the bundle action. */
6236 port
= get_ofp_port(ofproto
, ofp_port
);
6237 return port
? port
->may_enable
: false;
6242 xlate_bundle_action(struct action_xlate_ctx
*ctx
,
6243 const struct ofpact_bundle
*bundle
)
6247 port
= bundle_execute(bundle
, &ctx
->flow
, slave_enabled_cb
, ctx
->ofproto
);
6248 if (bundle
->dst
.field
) {
6249 nxm_reg_load(&bundle
->dst
, port
, &ctx
->flow
);
6251 xlate_output_action(ctx
, port
, 0, false);
6256 xlate_learn_action(struct action_xlate_ctx
*ctx
,
6257 const struct ofpact_learn
*learn
)
6259 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(5, 1);
6260 struct ofputil_flow_mod fm
;
6261 uint64_t ofpacts_stub
[1024 / 8];
6262 struct ofpbuf ofpacts
;
6265 ofpbuf_use_stack(&ofpacts
, ofpacts_stub
, sizeof ofpacts_stub
);
6266 learn_execute(learn
, &ctx
->flow
, &fm
, &ofpacts
);
6268 error
= ofproto_flow_mod(&ctx
->ofproto
->up
, &fm
);
6269 if (error
&& !VLOG_DROP_WARN(&rl
)) {
6270 VLOG_WARN("learning action failed to modify flow table (%s)",
6271 ofperr_get_name(error
));
6274 ofpbuf_uninit(&ofpacts
);
6277 /* Reduces '*timeout' to no more than 'max'. A value of zero in either case
6278 * means "infinite". */
6280 reduce_timeout(uint16_t max
, uint16_t *timeout
)
6282 if (max
&& (!*timeout
|| *timeout
> max
)) {
6288 xlate_fin_timeout(struct action_xlate_ctx
*ctx
,
6289 const struct ofpact_fin_timeout
*oft
)
6291 if (ctx
->tcp_flags
& (TCP_FIN
| TCP_RST
) && ctx
->rule
) {
6292 struct rule_dpif
*rule
= ctx
->rule
;
6294 reduce_timeout(oft
->fin_idle_timeout
, &rule
->up
.idle_timeout
);
6295 reduce_timeout(oft
->fin_hard_timeout
, &rule
->up
.hard_timeout
);
6300 may_receive(const struct ofport_dpif
*port
, struct action_xlate_ctx
*ctx
)
6302 if (port
->up
.pp
.config
& (eth_addr_equals(ctx
->flow
.dl_dst
, eth_addr_stp
)
6303 ? OFPUTIL_PC_NO_RECV_STP
6304 : OFPUTIL_PC_NO_RECV
)) {
6308 /* Only drop packets here if both forwarding and learning are
6309 * disabled. If just learning is enabled, we need to have
6310 * OFPP_NORMAL and the learning action have a look at the packet
6311 * before we can drop it. */
6312 if (!stp_forward_in_state(port
->stp_state
)
6313 && !stp_learn_in_state(port
->stp_state
)) {
6321 tunnel_ecn_ok(struct action_xlate_ctx
*ctx
)
6323 if (is_ip_any(&ctx
->base_flow
)
6324 && (ctx
->base_flow
.tunnel
.ip_tos
& IP_ECN_MASK
) == IP_ECN_CE
) {
6325 if ((ctx
->base_flow
.nw_tos
& IP_ECN_MASK
) == IP_ECN_NOT_ECT
) {
6326 VLOG_WARN_RL(&rl
, "dropping tunnel packet marked ECN CE"
6327 " but is not ECN capable");
6330 /* Set the ECN CE value in the tunneled packet. */
6331 ctx
->flow
.nw_tos
|= IP_ECN_CE
;
6339 do_xlate_actions(const struct ofpact
*ofpacts
, size_t ofpacts_len
,
6340 struct action_xlate_ctx
*ctx
)
6342 bool was_evictable
= true;
6343 const struct ofpact
*a
;
6346 /* Don't let the rule we're working on get evicted underneath us. */
6347 was_evictable
= ctx
->rule
->up
.evictable
;
6348 ctx
->rule
->up
.evictable
= false;
6350 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
6351 struct ofpact_controller
*controller
;
6352 const struct ofpact_metadata
*metadata
;
6360 xlate_output_action(ctx
, ofpact_get_OUTPUT(a
)->port
,
6361 ofpact_get_OUTPUT(a
)->max_len
, true);
6364 case OFPACT_CONTROLLER
:
6365 controller
= ofpact_get_CONTROLLER(a
);
6366 execute_controller_action(ctx
, controller
->max_len
,
6368 controller
->controller_id
);
6371 case OFPACT_ENQUEUE
:
6372 xlate_enqueue_action(ctx
, ofpact_get_ENQUEUE(a
));
6375 case OFPACT_SET_VLAN_VID
:
6376 ctx
->flow
.vlan_tci
&= ~htons(VLAN_VID_MASK
);
6377 ctx
->flow
.vlan_tci
|= (htons(ofpact_get_SET_VLAN_VID(a
)->vlan_vid
)
6381 case OFPACT_SET_VLAN_PCP
:
6382 ctx
->flow
.vlan_tci
&= ~htons(VLAN_PCP_MASK
);
6383 ctx
->flow
.vlan_tci
|= htons((ofpact_get_SET_VLAN_PCP(a
)->vlan_pcp
6388 case OFPACT_STRIP_VLAN
:
6389 ctx
->flow
.vlan_tci
= htons(0);
6392 case OFPACT_PUSH_VLAN
:
6393 /* XXX 802.1AD(QinQ) */
6394 ctx
->flow
.vlan_tci
= htons(VLAN_CFI
);
6397 case OFPACT_SET_ETH_SRC
:
6398 memcpy(ctx
->flow
.dl_src
, ofpact_get_SET_ETH_SRC(a
)->mac
,
6402 case OFPACT_SET_ETH_DST
:
6403 memcpy(ctx
->flow
.dl_dst
, ofpact_get_SET_ETH_DST(a
)->mac
,
6407 case OFPACT_SET_IPV4_SRC
:
6408 ctx
->flow
.nw_src
= ofpact_get_SET_IPV4_SRC(a
)->ipv4
;
6411 case OFPACT_SET_IPV4_DST
:
6412 ctx
->flow
.nw_dst
= ofpact_get_SET_IPV4_DST(a
)->ipv4
;
6415 case OFPACT_SET_IPV4_DSCP
:
6416 /* OpenFlow 1.0 only supports IPv4. */
6417 if (ctx
->flow
.dl_type
== htons(ETH_TYPE_IP
)) {
6418 ctx
->flow
.nw_tos
&= ~IP_DSCP_MASK
;
6419 ctx
->flow
.nw_tos
|= ofpact_get_SET_IPV4_DSCP(a
)->dscp
;
6423 case OFPACT_SET_L4_SRC_PORT
:
6424 ctx
->flow
.tp_src
= htons(ofpact_get_SET_L4_SRC_PORT(a
)->port
);
6427 case OFPACT_SET_L4_DST_PORT
:
6428 ctx
->flow
.tp_dst
= htons(ofpact_get_SET_L4_DST_PORT(a
)->port
);
6431 case OFPACT_RESUBMIT
:
6432 xlate_ofpact_resubmit(ctx
, ofpact_get_RESUBMIT(a
));
6435 case OFPACT_SET_TUNNEL
:
6436 ctx
->flow
.tunnel
.tun_id
= htonll(ofpact_get_SET_TUNNEL(a
)->tun_id
);
6439 case OFPACT_SET_QUEUE
:
6440 xlate_set_queue_action(ctx
, ofpact_get_SET_QUEUE(a
)->queue_id
);
6443 case OFPACT_POP_QUEUE
:
6444 ctx
->flow
.skb_priority
= ctx
->orig_skb_priority
;
6447 case OFPACT_REG_MOVE
:
6448 nxm_execute_reg_move(ofpact_get_REG_MOVE(a
), &ctx
->flow
);
6451 case OFPACT_REG_LOAD
:
6452 nxm_execute_reg_load(ofpact_get_REG_LOAD(a
), &ctx
->flow
);
6455 case OFPACT_STACK_PUSH
:
6456 nxm_execute_stack_push(ofpact_get_STACK_PUSH(a
), &ctx
->flow
,
6460 case OFPACT_STACK_POP
:
6461 nxm_execute_stack_pop(ofpact_get_STACK_POP(a
), &ctx
->flow
,
6465 case OFPACT_PUSH_MPLS
:
6466 execute_mpls_push_action(ctx
, ofpact_get_PUSH_MPLS(a
)->ethertype
);
6469 case OFPACT_POP_MPLS
:
6470 execute_mpls_pop_action(ctx
, ofpact_get_POP_MPLS(a
)->ethertype
);
6473 case OFPACT_SET_MPLS_TTL
:
6474 if (execute_set_mpls_ttl_action(ctx
, ofpact_get_SET_MPLS_TTL(a
)->ttl
)) {
6479 case OFPACT_DEC_MPLS_TTL
:
6480 if (execute_dec_mpls_ttl_action(ctx
)) {
6485 case OFPACT_DEC_TTL
:
6486 if (compose_dec_ttl(ctx
, ofpact_get_DEC_TTL(a
))) {
6492 /* Nothing to do. */
6495 case OFPACT_MULTIPATH
:
6496 multipath_execute(ofpact_get_MULTIPATH(a
), &ctx
->flow
);
6500 ctx
->ofproto
->has_bundle_action
= true;
6501 xlate_bundle_action(ctx
, ofpact_get_BUNDLE(a
));
6504 case OFPACT_OUTPUT_REG
:
6505 xlate_output_reg_action(ctx
, ofpact_get_OUTPUT_REG(a
));
6509 ctx
->has_learn
= true;
6510 if (ctx
->may_learn
) {
6511 xlate_learn_action(ctx
, ofpact_get_LEARN(a
));
6519 case OFPACT_FIN_TIMEOUT
:
6520 ctx
->has_fin_timeout
= true;
6521 xlate_fin_timeout(ctx
, ofpact_get_FIN_TIMEOUT(a
));
6524 case OFPACT_CLEAR_ACTIONS
:
6526 * Nothing to do because writa-actions is not supported for now.
6527 * When writa-actions is supported, clear-actions also must
6528 * be supported at the same time.
6532 case OFPACT_WRITE_METADATA
:
6533 metadata
= ofpact_get_WRITE_METADATA(a
);
6534 ctx
->flow
.metadata
&= ~metadata
->mask
;
6535 ctx
->flow
.metadata
|= metadata
->metadata
& metadata
->mask
;
6538 case OFPACT_GOTO_TABLE
: {
6539 /* XXX remove recursion */
6540 /* It is assumed that goto-table is last action */
6541 struct ofpact_goto_table
*ogt
= ofpact_get_GOTO_TABLE(a
);
6542 ovs_assert(ctx
->table_id
< ogt
->table_id
);
6543 xlate_table_action(ctx
, ctx
->flow
.in_port
, ogt
->table_id
, true);
6551 ctx
->rule
->up
.evictable
= was_evictable
;
6556 action_xlate_ctx_init(struct action_xlate_ctx
*ctx
,
6557 struct ofproto_dpif
*ofproto
, const struct flow
*flow
,
6558 const struct initial_vals
*initial_vals
,
6559 struct rule_dpif
*rule
,
6560 uint8_t tcp_flags
, const struct ofpbuf
*packet
)
6562 ovs_be64 initial_tun_id
= flow
->tunnel
.tun_id
;
6564 /* Flow initialization rules:
6565 * - 'base_flow' must match the kernel's view of the packet at the
6566 * time that action processing starts. 'flow' represents any
6567 * transformations we wish to make through actions.
6568 * - By default 'base_flow' and 'flow' are the same since the input
6569 * packet matches the output before any actions are applied.
6570 * - When using VLAN splinters, 'base_flow''s VLAN is set to the value
6571 * of the received packet as seen by the kernel. If we later output
6572 * to another device without any modifications this will cause us to
6573 * insert a new tag since the original one was stripped off by the
6575 * - Tunnel 'flow' is largely cleared when transitioning between
6576 * the input and output stages since it does not make sense to output
6577 * a packet with the exact headers that it was received with (i.e.
6578 * the destination IP is us). The one exception is the tun_id, which
6579 * is preserved to allow use in later resubmit lookups and loads into
6581 * - Tunnel 'base_flow' is completely cleared since that is what the
6582 * kernel does. If we wish to maintain the original values an action
6583 * needs to be generated. */
6585 ctx
->ofproto
= ofproto
;
6587 memset(&ctx
->flow
.tunnel
, 0, sizeof ctx
->flow
.tunnel
);
6588 ctx
->base_flow
= ctx
->flow
;
6589 ctx
->base_flow
.vlan_tci
= initial_vals
->vlan_tci
;
6590 ctx
->base_flow
.tunnel
.ip_tos
= initial_vals
->tunnel_ip_tos
;
6591 ctx
->flow
.tunnel
.tun_id
= initial_tun_id
;
6593 ctx
->packet
= packet
;
6594 ctx
->may_learn
= packet
!= NULL
;
6595 ctx
->tcp_flags
= tcp_flags
;
6596 ctx
->resubmit_hook
= NULL
;
6597 ctx
->report_hook
= NULL
;
6598 ctx
->resubmit_stats
= NULL
;
6601 /* Translates the 'ofpacts_len' bytes of "struct ofpacts" starting at 'ofpacts'
6602 * into datapath actions in 'odp_actions', using 'ctx'. */
6604 xlate_actions(struct action_xlate_ctx
*ctx
,
6605 const struct ofpact
*ofpacts
, size_t ofpacts_len
,
6606 struct ofpbuf
*odp_actions
)
6608 /* Normally false. Set to true if we ever hit MAX_RESUBMIT_RECURSION, so
6609 * that in the future we always keep a copy of the original flow for
6610 * tracing purposes. */
6611 static bool hit_resubmit_limit
;
6613 enum slow_path_reason special
;
6614 struct ofport_dpif
*in_port
;
6615 struct flow orig_flow
;
6617 COVERAGE_INC(ofproto_dpif_xlate
);
6619 ofpbuf_clear(odp_actions
);
6620 ofpbuf_reserve(odp_actions
, NL_A_U32_SIZE
);
6622 ctx
->odp_actions
= odp_actions
;
6625 ctx
->has_learn
= false;
6626 ctx
->has_normal
= false;
6627 ctx
->has_fin_timeout
= false;
6628 ctx
->nf_output_iface
= NF_OUT_DROP
;
6631 ctx
->max_resubmit_trigger
= false;
6632 ctx
->orig_skb_priority
= ctx
->flow
.skb_priority
;
6636 ofpbuf_use_stub(&ctx
->stack
, ctx
->init_stack
, sizeof ctx
->init_stack
);
6638 if (ctx
->ofproto
->has_mirrors
|| hit_resubmit_limit
) {
6639 /* Do this conditionally because the copy is expensive enough that it
6640 * shows up in profiles. */
6641 orig_flow
= ctx
->flow
;
6644 if (ctx
->flow
.nw_frag
& FLOW_NW_FRAG_ANY
) {
6645 switch (ctx
->ofproto
->up
.frag_handling
) {
6646 case OFPC_FRAG_NORMAL
:
6647 /* We must pretend that transport ports are unavailable. */
6648 ctx
->flow
.tp_src
= ctx
->base_flow
.tp_src
= htons(0);
6649 ctx
->flow
.tp_dst
= ctx
->base_flow
.tp_dst
= htons(0);
6652 case OFPC_FRAG_DROP
:
6655 case OFPC_FRAG_REASM
:
6658 case OFPC_FRAG_NX_MATCH
:
6659 /* Nothing to do. */
6662 case OFPC_INVALID_TTL_TO_CONTROLLER
:
6667 in_port
= get_ofp_port(ctx
->ofproto
, ctx
->flow
.in_port
);
6668 special
= process_special(ctx
->ofproto
, &ctx
->flow
, in_port
, ctx
->packet
);
6670 ctx
->slow
|= special
;
6672 static struct vlog_rate_limit trace_rl
= VLOG_RATE_LIMIT_INIT(1, 1);
6673 struct initial_vals initial_vals
;
6674 uint32_t local_odp_port
;
6676 initial_vals
.vlan_tci
= ctx
->base_flow
.vlan_tci
;
6677 initial_vals
.tunnel_ip_tos
= ctx
->base_flow
.tunnel
.ip_tos
;
6679 add_sflow_action(ctx
);
6681 if (tunnel_ecn_ok(ctx
) && (!in_port
|| may_receive(in_port
, ctx
))) {
6682 do_xlate_actions(ofpacts
, ofpacts_len
, ctx
);
6684 /* We've let OFPP_NORMAL and the learning action look at the
6685 * packet, so drop it now if forwarding is disabled. */
6686 if (in_port
&& !stp_forward_in_state(in_port
->stp_state
)) {
6687 ofpbuf_clear(ctx
->odp_actions
);
6688 add_sflow_action(ctx
);
6692 if (ctx
->max_resubmit_trigger
&& !ctx
->resubmit_hook
) {
6693 if (!hit_resubmit_limit
) {
6694 /* We didn't record the original flow. Make sure we do from
6696 hit_resubmit_limit
= true;
6697 } else if (!VLOG_DROP_ERR(&trace_rl
)) {
6698 struct ds ds
= DS_EMPTY_INITIALIZER
;
6700 ofproto_trace(ctx
->ofproto
, &orig_flow
, ctx
->packet
,
6701 &initial_vals
, &ds
);
6702 VLOG_ERR("Trace triggered by excessive resubmit "
6703 "recursion:\n%s", ds_cstr(&ds
));
6708 local_odp_port
= ofp_port_to_odp_port(ctx
->ofproto
, OFPP_LOCAL
);
6709 if (!connmgr_may_set_up_flow(ctx
->ofproto
->up
.connmgr
, &ctx
->flow
,
6711 ctx
->odp_actions
->data
,
6712 ctx
->odp_actions
->size
)) {
6713 ctx
->slow
|= SLOW_IN_BAND
;
6715 && connmgr_msg_in_hook(ctx
->ofproto
->up
.connmgr
, &ctx
->flow
,
6717 compose_output_action(ctx
, OFPP_LOCAL
);
6720 if (ctx
->ofproto
->has_mirrors
) {
6721 add_mirror_actions(ctx
, &orig_flow
);
6723 fix_sflow_action(ctx
);
6726 ofpbuf_uninit(&ctx
->stack
);
6729 /* Translates the 'ofpacts_len' bytes of "struct ofpact"s starting at 'ofpacts'
6730 * into datapath actions, using 'ctx', and discards the datapath actions. */
6732 xlate_actions_for_side_effects(struct action_xlate_ctx
*ctx
,
6733 const struct ofpact
*ofpacts
,
6736 uint64_t odp_actions_stub
[1024 / 8];
6737 struct ofpbuf odp_actions
;
6739 ofpbuf_use_stub(&odp_actions
, odp_actions_stub
, sizeof odp_actions_stub
);
6740 xlate_actions(ctx
, ofpacts
, ofpacts_len
, &odp_actions
);
6741 ofpbuf_uninit(&odp_actions
);
6745 xlate_report(struct action_xlate_ctx
*ctx
, const char *s
)
6747 if (ctx
->report_hook
) {
6748 ctx
->report_hook(ctx
, s
);
6752 /* OFPP_NORMAL implementation. */
6754 static struct ofport_dpif
*ofbundle_get_a_port(const struct ofbundle
*);
6756 /* Given 'vid', the VID obtained from the 802.1Q header that was received as
6757 * part of a packet (specify 0 if there was no 802.1Q header), and 'in_bundle',
6758 * the bundle on which the packet was received, returns the VLAN to which the
6761 * Both 'vid' and the return value are in the range 0...4095. */
6763 input_vid_to_vlan(const struct ofbundle
*in_bundle
, uint16_t vid
)
6765 switch (in_bundle
->vlan_mode
) {
6766 case PORT_VLAN_ACCESS
:
6767 return in_bundle
->vlan
;
6770 case PORT_VLAN_TRUNK
:
6773 case PORT_VLAN_NATIVE_UNTAGGED
:
6774 case PORT_VLAN_NATIVE_TAGGED
:
6775 return vid
? vid
: in_bundle
->vlan
;
6782 /* Checks whether a packet with the given 'vid' may ingress on 'in_bundle'.
6783 * If so, returns true. Otherwise, returns false and, if 'warn' is true, logs
6786 * 'vid' should be the VID obtained from the 802.1Q header that was received as
6787 * part of a packet (specify 0 if there was no 802.1Q header), in the range
6790 input_vid_is_valid(uint16_t vid
, struct ofbundle
*in_bundle
, bool warn
)
6792 /* Allow any VID on the OFPP_NONE port. */
6793 if (in_bundle
== &ofpp_none_bundle
) {
6797 switch (in_bundle
->vlan_mode
) {
6798 case PORT_VLAN_ACCESS
:
6801 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
6802 VLOG_WARN_RL(&rl
, "bridge %s: dropping VLAN %"PRIu16
" tagged "
6803 "packet received on port %s configured as VLAN "
6804 "%"PRIu16
" access port",
6805 in_bundle
->ofproto
->up
.name
, vid
,
6806 in_bundle
->name
, in_bundle
->vlan
);
6812 case PORT_VLAN_NATIVE_UNTAGGED
:
6813 case PORT_VLAN_NATIVE_TAGGED
:
6815 /* Port must always carry its native VLAN. */
6819 case PORT_VLAN_TRUNK
:
6820 if (!ofbundle_includes_vlan(in_bundle
, vid
)) {
6822 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
6823 VLOG_WARN_RL(&rl
, "bridge %s: dropping VLAN %"PRIu16
" packet "
6824 "received on port %s not configured for trunking "
6826 in_bundle
->ofproto
->up
.name
, vid
,
6827 in_bundle
->name
, vid
);
6839 /* Given 'vlan', the VLAN that a packet belongs to, and
6840 * 'out_bundle', a bundle on which the packet is to be output, returns the VID
6841 * that should be included in the 802.1Q header. (If the return value is 0,
6842 * then the 802.1Q header should only be included in the packet if there is a
6845 * Both 'vlan' and the return value are in the range 0...4095. */
6847 output_vlan_to_vid(const struct ofbundle
*out_bundle
, uint16_t vlan
)
6849 switch (out_bundle
->vlan_mode
) {
6850 case PORT_VLAN_ACCESS
:
6853 case PORT_VLAN_TRUNK
:
6854 case PORT_VLAN_NATIVE_TAGGED
:
6857 case PORT_VLAN_NATIVE_UNTAGGED
:
6858 return vlan
== out_bundle
->vlan
? 0 : vlan
;
6866 output_normal(struct action_xlate_ctx
*ctx
, const struct ofbundle
*out_bundle
,
6869 struct ofport_dpif
*port
;
6871 ovs_be16 tci
, old_tci
;
6873 vid
= output_vlan_to_vid(out_bundle
, vlan
);
6874 if (!out_bundle
->bond
) {
6875 port
= ofbundle_get_a_port(out_bundle
);
6877 port
= bond_choose_output_slave(out_bundle
->bond
, &ctx
->flow
,
6880 /* No slaves enabled, so drop packet. */
6885 old_tci
= ctx
->flow
.vlan_tci
;
6887 if (tci
|| out_bundle
->use_priority_tags
) {
6888 tci
|= ctx
->flow
.vlan_tci
& htons(VLAN_PCP_MASK
);
6890 tci
|= htons(VLAN_CFI
);
6893 ctx
->flow
.vlan_tci
= tci
;
6895 compose_output_action(ctx
, port
->up
.ofp_port
);
6896 ctx
->flow
.vlan_tci
= old_tci
;
6900 mirror_mask_ffs(mirror_mask_t mask
)
6902 BUILD_ASSERT_DECL(sizeof(unsigned int) >= sizeof(mask
));
6907 ofbundle_trunks_vlan(const struct ofbundle
*bundle
, uint16_t vlan
)
6909 return (bundle
->vlan_mode
!= PORT_VLAN_ACCESS
6910 && (!bundle
->trunks
|| bitmap_is_set(bundle
->trunks
, vlan
)));
6914 ofbundle_includes_vlan(const struct ofbundle
*bundle
, uint16_t vlan
)
6916 return vlan
== bundle
->vlan
|| ofbundle_trunks_vlan(bundle
, vlan
);
6919 /* Returns an arbitrary interface within 'bundle'. */
6920 static struct ofport_dpif
*
6921 ofbundle_get_a_port(const struct ofbundle
*bundle
)
6923 return CONTAINER_OF(list_front(&bundle
->ports
),
6924 struct ofport_dpif
, bundle_node
);
6928 vlan_is_mirrored(const struct ofmirror
*m
, int vlan
)
6930 return !m
->vlans
|| bitmap_is_set(m
->vlans
, vlan
);
6934 add_mirror_actions(struct action_xlate_ctx
*ctx
, const struct flow
*orig_flow
)
6936 struct ofproto_dpif
*ofproto
= ctx
->ofproto
;
6937 mirror_mask_t mirrors
;
6938 struct ofbundle
*in_bundle
;
6941 const struct nlattr
*a
;
6944 in_bundle
= lookup_input_bundle(ctx
->ofproto
, orig_flow
->in_port
,
6945 ctx
->packet
!= NULL
, NULL
);
6949 mirrors
= in_bundle
->src_mirrors
;
6951 /* Drop frames on bundles reserved for mirroring. */
6952 if (in_bundle
->mirror_out
) {
6953 if (ctx
->packet
!= NULL
) {
6954 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
6955 VLOG_WARN_RL(&rl
, "bridge %s: dropping packet received on port "
6956 "%s, which is reserved exclusively for mirroring",
6957 ctx
->ofproto
->up
.name
, in_bundle
->name
);
6963 vid
= vlan_tci_to_vid(orig_flow
->vlan_tci
);
6964 if (!input_vid_is_valid(vid
, in_bundle
, ctx
->packet
!= NULL
)) {
6967 vlan
= input_vid_to_vlan(in_bundle
, vid
);
6969 /* Look at the output ports to check for destination selections. */
6971 NL_ATTR_FOR_EACH (a
, left
, ctx
->odp_actions
->data
,
6972 ctx
->odp_actions
->size
) {
6973 enum ovs_action_attr type
= nl_attr_type(a
);
6974 struct ofport_dpif
*ofport
;
6976 if (type
!= OVS_ACTION_ATTR_OUTPUT
) {
6980 ofport
= get_odp_port(ofproto
, nl_attr_get_u32(a
));
6981 if (ofport
&& ofport
->bundle
) {
6982 mirrors
|= ofport
->bundle
->dst_mirrors
;
6990 /* Restore the original packet before adding the mirror actions. */
6991 ctx
->flow
= *orig_flow
;
6996 m
= ofproto
->mirrors
[mirror_mask_ffs(mirrors
) - 1];
6998 if (!vlan_is_mirrored(m
, vlan
)) {
6999 mirrors
= zero_rightmost_1bit(mirrors
);
7003 mirrors
&= ~m
->dup_mirrors
;
7004 ctx
->mirrors
|= m
->dup_mirrors
;
7006 output_normal(ctx
, m
->out
, vlan
);
7007 } else if (vlan
!= m
->out_vlan
7008 && !eth_addr_is_reserved(orig_flow
->dl_dst
)) {
7009 struct ofbundle
*bundle
;
7011 HMAP_FOR_EACH (bundle
, hmap_node
, &ofproto
->bundles
) {
7012 if (ofbundle_includes_vlan(bundle
, m
->out_vlan
)
7013 && !bundle
->mirror_out
) {
7014 output_normal(ctx
, bundle
, m
->out_vlan
);
7022 update_mirror_stats(struct ofproto_dpif
*ofproto
, mirror_mask_t mirrors
,
7023 uint64_t packets
, uint64_t bytes
)
7029 for (; mirrors
; mirrors
= zero_rightmost_1bit(mirrors
)) {
7032 m
= ofproto
->mirrors
[mirror_mask_ffs(mirrors
) - 1];
7035 /* In normal circumstances 'm' will not be NULL. However,
7036 * if mirrors are reconfigured, we can temporarily get out
7037 * of sync in facet_revalidate(). We could "correct" the
7038 * mirror list before reaching here, but doing that would
7039 * not properly account the traffic stats we've currently
7040 * accumulated for previous mirror configuration. */
7044 m
->packet_count
+= packets
;
7045 m
->byte_count
+= bytes
;
7049 /* A VM broadcasts a gratuitous ARP to indicate that it has resumed after
7050 * migration. Older Citrix-patched Linux DomU used gratuitous ARP replies to
7051 * indicate this; newer upstream kernels use gratuitous ARP requests. */
7053 is_gratuitous_arp(const struct flow
*flow
)
7055 return (flow
->dl_type
== htons(ETH_TYPE_ARP
)
7056 && eth_addr_is_broadcast(flow
->dl_dst
)
7057 && (flow
->nw_proto
== ARP_OP_REPLY
7058 || (flow
->nw_proto
== ARP_OP_REQUEST
7059 && flow
->nw_src
== flow
->nw_dst
)));
7063 update_learning_table(struct ofproto_dpif
*ofproto
,
7064 const struct flow
*flow
, int vlan
,
7065 struct ofbundle
*in_bundle
)
7067 struct mac_entry
*mac
;
7069 /* Don't learn the OFPP_NONE port. */
7070 if (in_bundle
== &ofpp_none_bundle
) {
7074 if (!mac_learning_may_learn(ofproto
->ml
, flow
->dl_src
, vlan
)) {
7078 mac
= mac_learning_insert(ofproto
->ml
, flow
->dl_src
, vlan
);
7079 if (is_gratuitous_arp(flow
)) {
7080 /* We don't want to learn from gratuitous ARP packets that are
7081 * reflected back over bond slaves so we lock the learning table. */
7082 if (!in_bundle
->bond
) {
7083 mac_entry_set_grat_arp_lock(mac
);
7084 } else if (mac_entry_is_grat_arp_locked(mac
)) {
7089 if (mac_entry_is_new(mac
) || mac
->port
.p
!= in_bundle
) {
7090 /* The log messages here could actually be useful in debugging,
7091 * so keep the rate limit relatively high. */
7092 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(30, 300);
7093 VLOG_DBG_RL(&rl
, "bridge %s: learned that "ETH_ADDR_FMT
" is "
7094 "on port %s in VLAN %d",
7095 ofproto
->up
.name
, ETH_ADDR_ARGS(flow
->dl_src
),
7096 in_bundle
->name
, vlan
);
7098 mac
->port
.p
= in_bundle
;
7099 tag_set_add(&ofproto
->backer
->revalidate_set
,
7100 mac_learning_changed(ofproto
->ml
, mac
));
7104 static struct ofbundle
*
7105 lookup_input_bundle(const struct ofproto_dpif
*ofproto
, uint16_t in_port
,
7106 bool warn
, struct ofport_dpif
**in_ofportp
)
7108 struct ofport_dpif
*ofport
;
7110 /* Find the port and bundle for the received packet. */
7111 ofport
= get_ofp_port(ofproto
, in_port
);
7113 *in_ofportp
= ofport
;
7115 if (ofport
&& ofport
->bundle
) {
7116 return ofport
->bundle
;
7119 /* Special-case OFPP_NONE, which a controller may use as the ingress
7120 * port for traffic that it is sourcing. */
7121 if (in_port
== OFPP_NONE
) {
7122 return &ofpp_none_bundle
;
7125 /* Odd. A few possible reasons here:
7127 * - We deleted a port but there are still a few packets queued up
7130 * - Someone externally added a port (e.g. "ovs-dpctl add-if") that
7131 * we don't know about.
7133 * - The ofproto client didn't configure the port as part of a bundle.
7134 * This is particularly likely to happen if a packet was received on the
7135 * port after it was created, but before the client had a chance to
7136 * configure its bundle.
7139 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
7141 VLOG_WARN_RL(&rl
, "bridge %s: received packet on unknown "
7142 "port %"PRIu16
, ofproto
->up
.name
, in_port
);
7147 /* Determines whether packets in 'flow' within 'ofproto' should be forwarded or
7148 * dropped. Returns true if they may be forwarded, false if they should be
7151 * 'in_port' must be the ofport_dpif that corresponds to flow->in_port.
7152 * 'in_port' must be part of a bundle (e.g. in_port->bundle must be nonnull).
7154 * 'vlan' must be the VLAN that corresponds to flow->vlan_tci on 'in_port', as
7155 * returned by input_vid_to_vlan(). It must be a valid VLAN for 'in_port', as
7156 * checked by input_vid_is_valid().
7158 * May also add tags to '*tags', although the current implementation only does
7159 * so in one special case.
7162 is_admissible(struct action_xlate_ctx
*ctx
, struct ofport_dpif
*in_port
,
7165 struct ofproto_dpif
*ofproto
= ctx
->ofproto
;
7166 struct flow
*flow
= &ctx
->flow
;
7167 struct ofbundle
*in_bundle
= in_port
->bundle
;
7169 /* Drop frames for reserved multicast addresses
7170 * only if forward_bpdu option is absent. */
7171 if (!ofproto
->up
.forward_bpdu
&& eth_addr_is_reserved(flow
->dl_dst
)) {
7172 xlate_report(ctx
, "packet has reserved destination MAC, dropping");
7176 if (in_bundle
->bond
) {
7177 struct mac_entry
*mac
;
7179 switch (bond_check_admissibility(in_bundle
->bond
, in_port
,
7180 flow
->dl_dst
, &ctx
->tags
)) {
7185 xlate_report(ctx
, "bonding refused admissibility, dropping");
7188 case BV_DROP_IF_MOVED
:
7189 mac
= mac_learning_lookup(ofproto
->ml
, flow
->dl_src
, vlan
, NULL
);
7190 if (mac
&& mac
->port
.p
!= in_bundle
&&
7191 (!is_gratuitous_arp(flow
)
7192 || mac_entry_is_grat_arp_locked(mac
))) {
7193 xlate_report(ctx
, "SLB bond thinks this packet looped back, "
7205 xlate_normal(struct action_xlate_ctx
*ctx
)
7207 struct ofport_dpif
*in_port
;
7208 struct ofbundle
*in_bundle
;
7209 struct mac_entry
*mac
;
7213 ctx
->has_normal
= true;
7215 in_bundle
= lookup_input_bundle(ctx
->ofproto
, ctx
->flow
.in_port
,
7216 ctx
->packet
!= NULL
, &in_port
);
7218 xlate_report(ctx
, "no input bundle, dropping");
7222 /* Drop malformed frames. */
7223 if (ctx
->flow
.dl_type
== htons(ETH_TYPE_VLAN
) &&
7224 !(ctx
->flow
.vlan_tci
& htons(VLAN_CFI
))) {
7225 if (ctx
->packet
!= NULL
) {
7226 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
7227 VLOG_WARN_RL(&rl
, "bridge %s: dropping packet with partial "
7228 "VLAN tag received on port %s",
7229 ctx
->ofproto
->up
.name
, in_bundle
->name
);
7231 xlate_report(ctx
, "partial VLAN tag, dropping");
7235 /* Drop frames on bundles reserved for mirroring. */
7236 if (in_bundle
->mirror_out
) {
7237 if (ctx
->packet
!= NULL
) {
7238 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
7239 VLOG_WARN_RL(&rl
, "bridge %s: dropping packet received on port "
7240 "%s, which is reserved exclusively for mirroring",
7241 ctx
->ofproto
->up
.name
, in_bundle
->name
);
7243 xlate_report(ctx
, "input port is mirror output port, dropping");
7248 vid
= vlan_tci_to_vid(ctx
->flow
.vlan_tci
);
7249 if (!input_vid_is_valid(vid
, in_bundle
, ctx
->packet
!= NULL
)) {
7250 xlate_report(ctx
, "disallowed VLAN VID for this input port, dropping");
7253 vlan
= input_vid_to_vlan(in_bundle
, vid
);
7255 /* Check other admissibility requirements. */
7256 if (in_port
&& !is_admissible(ctx
, in_port
, vlan
)) {
7260 /* Learn source MAC. */
7261 if (ctx
->may_learn
) {
7262 update_learning_table(ctx
->ofproto
, &ctx
->flow
, vlan
, in_bundle
);
7265 /* Determine output bundle. */
7266 mac
= mac_learning_lookup(ctx
->ofproto
->ml
, ctx
->flow
.dl_dst
, vlan
,
7269 if (mac
->port
.p
!= in_bundle
) {
7270 xlate_report(ctx
, "forwarding to learned port");
7271 output_normal(ctx
, mac
->port
.p
, vlan
);
7273 xlate_report(ctx
, "learned port is input port, dropping");
7276 struct ofbundle
*bundle
;
7278 xlate_report(ctx
, "no learned MAC for destination, flooding");
7279 HMAP_FOR_EACH (bundle
, hmap_node
, &ctx
->ofproto
->bundles
) {
7280 if (bundle
!= in_bundle
7281 && ofbundle_includes_vlan(bundle
, vlan
)
7282 && bundle
->floodable
7283 && !bundle
->mirror_out
) {
7284 output_normal(ctx
, bundle
, vlan
);
7287 ctx
->nf_output_iface
= NF_OUT_FLOOD
;
7291 /* Optimized flow revalidation.
7293 * It's a difficult problem, in general, to tell which facets need to have
7294 * their actions recalculated whenever the OpenFlow flow table changes. We
7295 * don't try to solve that general problem: for most kinds of OpenFlow flow
7296 * table changes, we recalculate the actions for every facet. This is
7297 * relatively expensive, but it's good enough if the OpenFlow flow table
7298 * doesn't change very often.
7300 * However, we can expect one particular kind of OpenFlow flow table change to
7301 * happen frequently: changes caused by MAC learning. To avoid wasting a lot
7302 * of CPU on revalidating every facet whenever MAC learning modifies the flow
7303 * table, we add a special case that applies to flow tables in which every rule
7304 * has the same form (that is, the same wildcards), except that the table is
7305 * also allowed to have a single "catch-all" flow that matches all packets. We
7306 * optimize this case by tagging all of the facets that resubmit into the table
7307 * and invalidating the same tag whenever a flow changes in that table. The
7308 * end result is that we revalidate just the facets that need it (and sometimes
7309 * a few more, but not all of the facets or even all of the facets that
7310 * resubmit to the table modified by MAC learning). */
7312 /* Calculates the tag to use for 'flow' and mask 'mask' when it is inserted
7313 * into an OpenFlow table with the given 'basis'. */
7315 rule_calculate_tag(const struct flow
*flow
, const struct minimask
*mask
,
7318 if (minimask_is_catchall(mask
)) {
7321 uint32_t hash
= flow_hash_in_minimask(flow
, mask
, secret
);
7322 return tag_create_deterministic(hash
);
7326 /* Following a change to OpenFlow table 'table_id' in 'ofproto', update the
7327 * taggability of that table.
7329 * This function must be called after *each* change to a flow table. If you
7330 * skip calling it on some changes then the pointer comparisons at the end can
7331 * be invalid if you get unlucky. For example, if a flow removal causes a
7332 * cls_table to be destroyed and then a flow insertion causes a cls_table with
7333 * different wildcards to be created with the same address, then this function
7334 * will incorrectly skip revalidation. */
7336 table_update_taggable(struct ofproto_dpif
*ofproto
, uint8_t table_id
)
7338 struct table_dpif
*table
= &ofproto
->tables
[table_id
];
7339 const struct oftable
*oftable
= &ofproto
->up
.tables
[table_id
];
7340 struct cls_table
*catchall
, *other
;
7341 struct cls_table
*t
;
7343 catchall
= other
= NULL
;
7345 switch (hmap_count(&oftable
->cls
.tables
)) {
7347 /* We could tag this OpenFlow table but it would make the logic a
7348 * little harder and it's a corner case that doesn't seem worth it
7354 HMAP_FOR_EACH (t
, hmap_node
, &oftable
->cls
.tables
) {
7355 if (cls_table_is_catchall(t
)) {
7357 } else if (!other
) {
7360 /* Indicate that we can't tag this by setting both tables to
7361 * NULL. (We know that 'catchall' is already NULL.) */
7368 /* Can't tag this table. */
7372 if (table
->catchall_table
!= catchall
|| table
->other_table
!= other
) {
7373 table
->catchall_table
= catchall
;
7374 table
->other_table
= other
;
7375 ofproto
->backer
->need_revalidate
= REV_FLOW_TABLE
;
7379 /* Given 'rule' that has changed in some way (either it is a rule being
7380 * inserted, a rule being deleted, or a rule whose actions are being
7381 * modified), marks facets for revalidation to ensure that packets will be
7382 * forwarded correctly according to the new state of the flow table.
7384 * This function must be called after *each* change to a flow table. See
7385 * the comment on table_update_taggable() for more information. */
7387 rule_invalidate(const struct rule_dpif
*rule
)
7389 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(rule
->up
.ofproto
);
7391 table_update_taggable(ofproto
, rule
->up
.table_id
);
7393 if (!ofproto
->backer
->need_revalidate
) {
7394 struct table_dpif
*table
= &ofproto
->tables
[rule
->up
.table_id
];
7396 if (table
->other_table
&& rule
->tag
) {
7397 tag_set_add(&ofproto
->backer
->revalidate_set
, rule
->tag
);
7399 ofproto
->backer
->need_revalidate
= REV_FLOW_TABLE
;
7405 set_frag_handling(struct ofproto
*ofproto_
,
7406 enum ofp_config_flags frag_handling
)
7408 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
7409 if (frag_handling
!= OFPC_FRAG_REASM
) {
7410 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
7418 packet_out(struct ofproto
*ofproto_
, struct ofpbuf
*packet
,
7419 const struct flow
*flow
,
7420 const struct ofpact
*ofpacts
, size_t ofpacts_len
)
7422 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
7423 struct initial_vals initial_vals
;
7424 struct odputil_keybuf keybuf
;
7425 struct dpif_flow_stats stats
;
7429 struct action_xlate_ctx ctx
;
7430 uint64_t odp_actions_stub
[1024 / 8];
7431 struct ofpbuf odp_actions
;
7433 ofpbuf_use_stack(&key
, &keybuf
, sizeof keybuf
);
7434 odp_flow_key_from_flow(&key
, flow
,
7435 ofp_port_to_odp_port(ofproto
, flow
->in_port
));
7437 dpif_flow_stats_extract(flow
, packet
, time_msec(), &stats
);
7439 initial_vals
.vlan_tci
= flow
->vlan_tci
;
7440 initial_vals
.tunnel_ip_tos
= 0;
7441 action_xlate_ctx_init(&ctx
, ofproto
, flow
, &initial_vals
, NULL
,
7442 packet_get_tcp_flags(packet
, flow
), packet
);
7443 ctx
.resubmit_stats
= &stats
;
7445 ofpbuf_use_stub(&odp_actions
,
7446 odp_actions_stub
, sizeof odp_actions_stub
);
7447 xlate_actions(&ctx
, ofpacts
, ofpacts_len
, &odp_actions
);
7448 dpif_execute(ofproto
->backer
->dpif
, key
.data
, key
.size
,
7449 odp_actions
.data
, odp_actions
.size
, packet
);
7450 ofpbuf_uninit(&odp_actions
);
7458 set_netflow(struct ofproto
*ofproto_
,
7459 const struct netflow_options
*netflow_options
)
7461 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
7463 if (netflow_options
) {
7464 if (!ofproto
->netflow
) {
7465 ofproto
->netflow
= netflow_create();
7467 return netflow_set_options(ofproto
->netflow
, netflow_options
);
7469 netflow_destroy(ofproto
->netflow
);
7470 ofproto
->netflow
= NULL
;
7476 get_netflow_ids(const struct ofproto
*ofproto_
,
7477 uint8_t *engine_type
, uint8_t *engine_id
)
7479 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofproto_
);
7481 dpif_get_netflow_ids(ofproto
->backer
->dpif
, engine_type
, engine_id
);
7485 send_active_timeout(struct ofproto_dpif
*ofproto
, struct facet
*facet
)
7487 if (!facet_is_controller_flow(facet
) &&
7488 netflow_active_timeout_expired(ofproto
->netflow
, &facet
->nf_flow
)) {
7489 struct subfacet
*subfacet
;
7490 struct ofexpired expired
;
7492 LIST_FOR_EACH (subfacet
, list_node
, &facet
->subfacets
) {
7493 if (subfacet
->path
== SF_FAST_PATH
) {
7494 struct dpif_flow_stats stats
;
7496 subfacet_reinstall(subfacet
, &stats
);
7497 subfacet_update_stats(subfacet
, &stats
);
7501 expired
.flow
= facet
->flow
;
7502 expired
.packet_count
= facet
->packet_count
;
7503 expired
.byte_count
= facet
->byte_count
;
7504 expired
.used
= facet
->used
;
7505 netflow_expire(ofproto
->netflow
, &facet
->nf_flow
, &expired
);
7510 send_netflow_active_timeouts(struct ofproto_dpif
*ofproto
)
7512 struct facet
*facet
;
7514 HMAP_FOR_EACH (facet
, hmap_node
, &ofproto
->facets
) {
7515 send_active_timeout(ofproto
, facet
);
7519 static struct ofproto_dpif
*
7520 ofproto_dpif_lookup(const char *name
)
7522 struct ofproto_dpif
*ofproto
;
7524 HMAP_FOR_EACH_WITH_HASH (ofproto
, all_ofproto_dpifs_node
,
7525 hash_string(name
, 0), &all_ofproto_dpifs
) {
7526 if (!strcmp(ofproto
->up
.name
, name
)) {
7534 ofproto_unixctl_fdb_flush(struct unixctl_conn
*conn
, int argc
,
7535 const char *argv
[], void *aux OVS_UNUSED
)
7537 struct ofproto_dpif
*ofproto
;
7540 ofproto
= ofproto_dpif_lookup(argv
[1]);
7542 unixctl_command_reply_error(conn
, "no such bridge");
7545 mac_learning_flush(ofproto
->ml
, &ofproto
->backer
->revalidate_set
);
7547 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
7548 mac_learning_flush(ofproto
->ml
, &ofproto
->backer
->revalidate_set
);
7552 unixctl_command_reply(conn
, "table successfully flushed");
7556 ofproto_unixctl_fdb_show(struct unixctl_conn
*conn
, int argc OVS_UNUSED
,
7557 const char *argv
[], void *aux OVS_UNUSED
)
7559 struct ds ds
= DS_EMPTY_INITIALIZER
;
7560 const struct ofproto_dpif
*ofproto
;
7561 const struct mac_entry
*e
;
7563 ofproto
= ofproto_dpif_lookup(argv
[1]);
7565 unixctl_command_reply_error(conn
, "no such bridge");
7569 ds_put_cstr(&ds
, " port VLAN MAC Age\n");
7570 LIST_FOR_EACH (e
, lru_node
, &ofproto
->ml
->lrus
) {
7571 struct ofbundle
*bundle
= e
->port
.p
;
7572 ds_put_format(&ds
, "%5d %4d "ETH_ADDR_FMT
" %3d\n",
7573 ofbundle_get_a_port(bundle
)->odp_port
,
7574 e
->vlan
, ETH_ADDR_ARGS(e
->mac
),
7575 mac_entry_age(ofproto
->ml
, e
));
7577 unixctl_command_reply(conn
, ds_cstr(&ds
));
7582 struct action_xlate_ctx ctx
;
7588 trace_format_rule(struct ds
*result
, uint8_t table_id
, int level
,
7589 const struct rule_dpif
*rule
)
7591 ds_put_char_multiple(result
, '\t', level
);
7593 ds_put_cstr(result
, "No match\n");
7597 ds_put_format(result
, "Rule: table=%"PRIu8
" cookie=%#"PRIx64
" ",
7598 table_id
, ntohll(rule
->up
.flow_cookie
));
7599 cls_rule_format(&rule
->up
.cr
, result
);
7600 ds_put_char(result
, '\n');
7602 ds_put_char_multiple(result
, '\t', level
);
7603 ds_put_cstr(result
, "OpenFlow ");
7604 ofpacts_format(rule
->up
.ofpacts
, rule
->up
.ofpacts_len
, result
);
7605 ds_put_char(result
, '\n');
7609 trace_format_flow(struct ds
*result
, int level
, const char *title
,
7610 struct trace_ctx
*trace
)
7612 ds_put_char_multiple(result
, '\t', level
);
7613 ds_put_format(result
, "%s: ", title
);
7614 if (flow_equal(&trace
->ctx
.flow
, &trace
->flow
)) {
7615 ds_put_cstr(result
, "unchanged");
7617 flow_format(result
, &trace
->ctx
.flow
);
7618 trace
->flow
= trace
->ctx
.flow
;
7620 ds_put_char(result
, '\n');
7624 trace_format_regs(struct ds
*result
, int level
, const char *title
,
7625 struct trace_ctx
*trace
)
7629 ds_put_char_multiple(result
, '\t', level
);
7630 ds_put_format(result
, "%s:", title
);
7631 for (i
= 0; i
< FLOW_N_REGS
; i
++) {
7632 ds_put_format(result
, " reg%zu=0x%"PRIx32
, i
, trace
->flow
.regs
[i
]);
7634 ds_put_char(result
, '\n');
7638 trace_format_odp(struct ds
*result
, int level
, const char *title
,
7639 struct trace_ctx
*trace
)
7641 struct ofpbuf
*odp_actions
= trace
->ctx
.odp_actions
;
7643 ds_put_char_multiple(result
, '\t', level
);
7644 ds_put_format(result
, "%s: ", title
);
7645 format_odp_actions(result
, odp_actions
->data
, odp_actions
->size
);
7646 ds_put_char(result
, '\n');
7650 trace_resubmit(struct action_xlate_ctx
*ctx
, struct rule_dpif
*rule
)
7652 struct trace_ctx
*trace
= CONTAINER_OF(ctx
, struct trace_ctx
, ctx
);
7653 struct ds
*result
= trace
->result
;
7655 ds_put_char(result
, '\n');
7656 trace_format_flow(result
, ctx
->recurse
+ 1, "Resubmitted flow", trace
);
7657 trace_format_regs(result
, ctx
->recurse
+ 1, "Resubmitted regs", trace
);
7658 trace_format_odp(result
, ctx
->recurse
+ 1, "Resubmitted odp", trace
);
7659 trace_format_rule(result
, ctx
->table_id
, ctx
->recurse
+ 1, rule
);
7663 trace_report(struct action_xlate_ctx
*ctx
, const char *s
)
7665 struct trace_ctx
*trace
= CONTAINER_OF(ctx
, struct trace_ctx
, ctx
);
7666 struct ds
*result
= trace
->result
;
7668 ds_put_char_multiple(result
, '\t', ctx
->recurse
);
7669 ds_put_cstr(result
, s
);
7670 ds_put_char(result
, '\n');
7674 ofproto_unixctl_trace(struct unixctl_conn
*conn
, int argc
, const char *argv
[],
7675 void *aux OVS_UNUSED
)
7677 const char *dpname
= argv
[1];
7678 struct ofproto_dpif
*ofproto
;
7679 struct ofpbuf odp_key
;
7680 struct ofpbuf
*packet
;
7681 struct initial_vals initial_vals
;
7687 ofpbuf_init(&odp_key
, 0);
7690 ofproto
= ofproto_dpif_lookup(dpname
);
7692 unixctl_command_reply_error(conn
, "Unknown ofproto (use ofproto/list "
7696 if (argc
== 3 || (argc
== 4 && !strcmp(argv
[3], "-generate"))) {
7697 /* ofproto/trace dpname flow [-generate] */
7698 const char *flow_s
= argv
[2];
7699 const char *generate_s
= argv
[3];
7701 /* Allow 'flow_s' to be either a datapath flow or an OpenFlow-like
7702 * flow. We guess which type it is based on whether 'flow_s' contains
7703 * an '(', since a datapath flow always contains '(') but an
7704 * OpenFlow-like flow should not (in fact it's allowed but I believe
7705 * that's not documented anywhere).
7707 * An alternative would be to try to parse 'flow_s' both ways, but then
7708 * it would be tricky giving a sensible error message. After all, do
7709 * you just say "syntax error" or do you present both error messages?
7710 * Both choices seem lousy. */
7711 if (strchr(flow_s
, '(')) {
7714 /* Convert string to datapath key. */
7715 ofpbuf_init(&odp_key
, 0);
7716 error
= odp_flow_key_from_string(flow_s
, NULL
, &odp_key
);
7718 unixctl_command_reply_error(conn
, "Bad flow syntax");
7722 /* XXX: Since we allow the user to specify an ofproto, it's
7723 * possible they will specify a different ofproto than the one the
7724 * port actually belongs too. Ideally we should simply remove the
7725 * ability to specify the ofproto. */
7726 if (ofproto_receive(ofproto
->backer
, NULL
, odp_key
.data
,
7727 odp_key
.size
, &flow
, NULL
, NULL
, NULL
,
7729 unixctl_command_reply_error(conn
, "Invalid flow");
7735 error_s
= parse_ofp_exact_flow(&flow
, argv
[2]);
7737 unixctl_command_reply_error(conn
, error_s
);
7742 initial_vals
.vlan_tci
= flow
.vlan_tci
;
7743 initial_vals
.tunnel_ip_tos
= flow
.tunnel
.ip_tos
;
7746 /* Generate a packet, if requested. */
7748 packet
= ofpbuf_new(0);
7749 flow_compose(packet
, &flow
);
7751 } else if (argc
== 7) {
7752 /* ofproto/trace dpname priority tun_id in_port mark packet */
7753 const char *priority_s
= argv
[2];
7754 const char *tun_id_s
= argv
[3];
7755 const char *in_port_s
= argv
[4];
7756 const char *mark_s
= argv
[5];
7757 const char *packet_s
= argv
[6];
7758 uint32_t in_port
= atoi(in_port_s
);
7759 ovs_be64 tun_id
= htonll(strtoull(tun_id_s
, NULL
, 0));
7760 uint32_t priority
= atoi(priority_s
);
7761 uint32_t mark
= atoi(mark_s
);
7764 msg
= eth_from_hex(packet_s
, &packet
);
7766 unixctl_command_reply_error(conn
, msg
);
7770 ds_put_cstr(&result
, "Packet: ");
7771 s
= ofp_packet_to_string(packet
->data
, packet
->size
);
7772 ds_put_cstr(&result
, s
);
7775 flow_extract(packet
, priority
, mark
, NULL
, in_port
, &flow
);
7776 flow
.tunnel
.tun_id
= tun_id
;
7777 initial_vals
.vlan_tci
= flow
.vlan_tci
;
7778 initial_vals
.tunnel_ip_tos
= flow
.tunnel
.ip_tos
;
7780 unixctl_command_reply_error(conn
, "Bad command syntax");
7784 ofproto_trace(ofproto
, &flow
, packet
, &initial_vals
, &result
);
7785 unixctl_command_reply(conn
, ds_cstr(&result
));
7788 ds_destroy(&result
);
7789 ofpbuf_delete(packet
);
7790 ofpbuf_uninit(&odp_key
);
7794 ofproto_trace(struct ofproto_dpif
*ofproto
, const struct flow
*flow
,
7795 const struct ofpbuf
*packet
,
7796 const struct initial_vals
*initial_vals
, struct ds
*ds
)
7798 struct rule_dpif
*rule
;
7800 ds_put_cstr(ds
, "Flow: ");
7801 flow_format(ds
, flow
);
7802 ds_put_char(ds
, '\n');
7804 rule
= rule_dpif_lookup(ofproto
, flow
);
7806 trace_format_rule(ds
, 0, 0, rule
);
7807 if (rule
== ofproto
->miss_rule
) {
7808 ds_put_cstr(ds
, "\nNo match, flow generates \"packet in\"s.\n");
7809 } else if (rule
== ofproto
->no_packet_in_rule
) {
7810 ds_put_cstr(ds
, "\nNo match, packets dropped because "
7811 "OFPPC_NO_PACKET_IN is set on in_port.\n");
7815 uint64_t odp_actions_stub
[1024 / 8];
7816 struct ofpbuf odp_actions
;
7818 struct trace_ctx trace
;
7821 tcp_flags
= packet
? packet_get_tcp_flags(packet
, flow
) : 0;
7824 ofpbuf_use_stub(&odp_actions
,
7825 odp_actions_stub
, sizeof odp_actions_stub
);
7826 action_xlate_ctx_init(&trace
.ctx
, ofproto
, flow
, initial_vals
,
7827 rule
, tcp_flags
, packet
);
7828 trace
.ctx
.resubmit_hook
= trace_resubmit
;
7829 trace
.ctx
.report_hook
= trace_report
;
7830 xlate_actions(&trace
.ctx
, rule
->up
.ofpacts
, rule
->up
.ofpacts_len
,
7833 ds_put_char(ds
, '\n');
7834 trace_format_flow(ds
, 0, "Final flow", &trace
);
7835 ds_put_cstr(ds
, "Datapath actions: ");
7836 format_odp_actions(ds
, odp_actions
.data
, odp_actions
.size
);
7837 ofpbuf_uninit(&odp_actions
);
7839 if (trace
.ctx
.slow
) {
7840 enum slow_path_reason slow
;
7842 ds_put_cstr(ds
, "\nThis flow is handled by the userspace "
7843 "slow path because it:");
7844 for (slow
= trace
.ctx
.slow
; slow
; ) {
7845 enum slow_path_reason bit
= rightmost_1bit(slow
);
7849 ds_put_cstr(ds
, "\n\t- Consists of CFM packets.");
7852 ds_put_cstr(ds
, "\n\t- Consists of LACP packets.");
7855 ds_put_cstr(ds
, "\n\t- Consists of STP packets.");
7858 ds_put_cstr(ds
, "\n\t- Needs in-band special case "
7861 ds_put_cstr(ds
, "\n\t (The datapath actions are "
7862 "incomplete--for complete actions, "
7863 "please supply a packet.)");
7866 case SLOW_CONTROLLER
:
7867 ds_put_cstr(ds
, "\n\t- Sends \"packet-in\" messages "
7868 "to the OpenFlow controller.");
7871 ds_put_cstr(ds
, "\n\t- Needs more specific matching "
7872 "than the datapath supports.");
7879 if (slow
& ~SLOW_MATCH
) {
7880 ds_put_cstr(ds
, "\nThe datapath actions above do not reflect "
7881 "the special slow-path processing.");
7888 ofproto_dpif_clog(struct unixctl_conn
*conn OVS_UNUSED
, int argc OVS_UNUSED
,
7889 const char *argv
[] OVS_UNUSED
, void *aux OVS_UNUSED
)
7892 unixctl_command_reply(conn
, NULL
);
7896 ofproto_dpif_unclog(struct unixctl_conn
*conn OVS_UNUSED
, int argc OVS_UNUSED
,
7897 const char *argv
[] OVS_UNUSED
, void *aux OVS_UNUSED
)
7900 unixctl_command_reply(conn
, NULL
);
7903 /* Runs a self-check of flow translations in 'ofproto'. Appends a message to
7904 * 'reply' describing the results. */
7906 ofproto_dpif_self_check__(struct ofproto_dpif
*ofproto
, struct ds
*reply
)
7908 struct facet
*facet
;
7912 HMAP_FOR_EACH (facet
, hmap_node
, &ofproto
->facets
) {
7913 if (!facet_check_consistency(facet
)) {
7918 ofproto
->backer
->need_revalidate
= REV_INCONSISTENCY
;
7922 ds_put_format(reply
, "%s: self-check failed (%d errors)\n",
7923 ofproto
->up
.name
, errors
);
7925 ds_put_format(reply
, "%s: self-check passed\n", ofproto
->up
.name
);
7930 ofproto_dpif_self_check(struct unixctl_conn
*conn
,
7931 int argc
, const char *argv
[], void *aux OVS_UNUSED
)
7933 struct ds reply
= DS_EMPTY_INITIALIZER
;
7934 struct ofproto_dpif
*ofproto
;
7937 ofproto
= ofproto_dpif_lookup(argv
[1]);
7939 unixctl_command_reply_error(conn
, "Unknown ofproto (use "
7940 "ofproto/list for help)");
7943 ofproto_dpif_self_check__(ofproto
, &reply
);
7945 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
7946 ofproto_dpif_self_check__(ofproto
, &reply
);
7950 unixctl_command_reply(conn
, ds_cstr(&reply
));
7954 /* Store the current ofprotos in 'ofproto_shash'. Returns a sorted list
7955 * of the 'ofproto_shash' nodes. It is the responsibility of the caller
7956 * to destroy 'ofproto_shash' and free the returned value. */
7957 static const struct shash_node
**
7958 get_ofprotos(struct shash
*ofproto_shash
)
7960 const struct ofproto_dpif
*ofproto
;
7962 HMAP_FOR_EACH (ofproto
, all_ofproto_dpifs_node
, &all_ofproto_dpifs
) {
7963 char *name
= xasprintf("%s@%s", ofproto
->up
.type
, ofproto
->up
.name
);
7964 shash_add_nocopy(ofproto_shash
, name
, ofproto
);
7967 return shash_sort(ofproto_shash
);
7971 ofproto_unixctl_dpif_dump_dps(struct unixctl_conn
*conn
, int argc OVS_UNUSED
,
7972 const char *argv
[] OVS_UNUSED
,
7973 void *aux OVS_UNUSED
)
7975 struct ds ds
= DS_EMPTY_INITIALIZER
;
7976 struct shash ofproto_shash
;
7977 const struct shash_node
**sorted_ofprotos
;
7980 shash_init(&ofproto_shash
);
7981 sorted_ofprotos
= get_ofprotos(&ofproto_shash
);
7982 for (i
= 0; i
< shash_count(&ofproto_shash
); i
++) {
7983 const struct shash_node
*node
= sorted_ofprotos
[i
];
7984 ds_put_format(&ds
, "%s\n", node
->name
);
7987 shash_destroy(&ofproto_shash
);
7988 free(sorted_ofprotos
);
7990 unixctl_command_reply(conn
, ds_cstr(&ds
));
7995 show_dp_format(const struct ofproto_dpif
*ofproto
, struct ds
*ds
)
7997 struct dpif_dp_stats s
;
7998 const struct shash_node
**ports
;
8001 dpif_get_dp_stats(ofproto
->backer
->dpif
, &s
);
8003 ds_put_format(ds
, "%s (%s):\n", ofproto
->up
.name
,
8004 dpif_name(ofproto
->backer
->dpif
));
8005 /* xxx It would be better to show bridge-specific stats instead
8006 * xxx of dp ones. */
8008 "\tlookups: hit:%"PRIu64
" missed:%"PRIu64
" lost:%"PRIu64
"\n",
8009 s
.n_hit
, s
.n_missed
, s
.n_lost
);
8010 ds_put_format(ds
, "\tflows: %zu\n",
8011 hmap_count(&ofproto
->subfacets
));
8013 ports
= shash_sort(&ofproto
->up
.port_by_name
);
8014 for (i
= 0; i
< shash_count(&ofproto
->up
.port_by_name
); i
++) {
8015 const struct shash_node
*node
= ports
[i
];
8016 struct ofport
*ofport
= node
->data
;
8017 const char *name
= netdev_get_name(ofport
->netdev
);
8018 const char *type
= netdev_get_type(ofport
->netdev
);
8021 ds_put_format(ds
, "\t%s %u/", name
, ofport
->ofp_port
);
8023 odp_port
= ofp_port_to_odp_port(ofproto
, ofport
->ofp_port
);
8024 if (odp_port
!= OVSP_NONE
) {
8025 ds_put_format(ds
, "%"PRIu32
":", odp_port
);
8027 ds_put_cstr(ds
, "none:");
8030 if (strcmp(type
, "system")) {
8031 struct netdev
*netdev
;
8034 ds_put_format(ds
, " (%s", type
);
8036 error
= netdev_open(name
, type
, &netdev
);
8041 error
= netdev_get_config(netdev
, &config
);
8043 const struct smap_node
**nodes
;
8046 nodes
= smap_sort(&config
);
8047 for (i
= 0; i
< smap_count(&config
); i
++) {
8048 const struct smap_node
*node
= nodes
[i
];
8049 ds_put_format(ds
, "%c %s=%s", i
? ',' : ':',
8050 node
->key
, node
->value
);
8054 smap_destroy(&config
);
8056 netdev_close(netdev
);
8058 ds_put_char(ds
, ')');
8060 ds_put_char(ds
, '\n');
8066 ofproto_unixctl_dpif_show(struct unixctl_conn
*conn
, int argc
,
8067 const char *argv
[], void *aux OVS_UNUSED
)
8069 struct ds ds
= DS_EMPTY_INITIALIZER
;
8070 const struct ofproto_dpif
*ofproto
;
8074 for (i
= 1; i
< argc
; i
++) {
8075 ofproto
= ofproto_dpif_lookup(argv
[i
]);
8077 ds_put_format(&ds
, "Unknown bridge %s (use dpif/dump-dps "
8078 "for help)", argv
[i
]);
8079 unixctl_command_reply_error(conn
, ds_cstr(&ds
));
8082 show_dp_format(ofproto
, &ds
);
8085 struct shash ofproto_shash
;
8086 const struct shash_node
**sorted_ofprotos
;
8089 shash_init(&ofproto_shash
);
8090 sorted_ofprotos
= get_ofprotos(&ofproto_shash
);
8091 for (i
= 0; i
< shash_count(&ofproto_shash
); i
++) {
8092 const struct shash_node
*node
= sorted_ofprotos
[i
];
8093 show_dp_format(node
->data
, &ds
);
8096 shash_destroy(&ofproto_shash
);
8097 free(sorted_ofprotos
);
8100 unixctl_command_reply(conn
, ds_cstr(&ds
));
8105 ofproto_unixctl_dpif_dump_flows(struct unixctl_conn
*conn
,
8106 int argc OVS_UNUSED
, const char *argv
[],
8107 void *aux OVS_UNUSED
)
8109 struct ds ds
= DS_EMPTY_INITIALIZER
;
8110 const struct ofproto_dpif
*ofproto
;
8111 struct subfacet
*subfacet
;
8113 ofproto
= ofproto_dpif_lookup(argv
[1]);
8115 unixctl_command_reply_error(conn
, "no such bridge");
8119 update_stats(ofproto
->backer
);
8121 HMAP_FOR_EACH (subfacet
, hmap_node
, &ofproto
->subfacets
) {
8122 odp_flow_key_format(subfacet
->key
, subfacet
->key_len
, &ds
);
8124 ds_put_format(&ds
, ", packets:%"PRIu64
", bytes:%"PRIu64
", used:",
8125 subfacet
->dp_packet_count
, subfacet
->dp_byte_count
);
8126 if (subfacet
->used
) {
8127 ds_put_format(&ds
, "%.3fs",
8128 (time_msec() - subfacet
->used
) / 1000.0);
8130 ds_put_format(&ds
, "never");
8132 if (subfacet
->facet
->tcp_flags
) {
8133 ds_put_cstr(&ds
, ", flags:");
8134 packet_format_tcp_flags(&ds
, subfacet
->facet
->tcp_flags
);
8137 ds_put_cstr(&ds
, ", actions:");
8138 format_odp_actions(&ds
, subfacet
->actions
, subfacet
->actions_len
);
8139 ds_put_char(&ds
, '\n');
8142 unixctl_command_reply(conn
, ds_cstr(&ds
));
8147 ofproto_unixctl_dpif_del_flows(struct unixctl_conn
*conn
,
8148 int argc OVS_UNUSED
, const char *argv
[],
8149 void *aux OVS_UNUSED
)
8151 struct ds ds
= DS_EMPTY_INITIALIZER
;
8152 struct ofproto_dpif
*ofproto
;
8154 ofproto
= ofproto_dpif_lookup(argv
[1]);
8156 unixctl_command_reply_error(conn
, "no such bridge");
8160 flush(&ofproto
->up
);
8162 unixctl_command_reply(conn
, ds_cstr(&ds
));
8167 ofproto_dpif_unixctl_init(void)
8169 static bool registered
;
8175 unixctl_command_register(
8177 "bridge {priority tun_id in_port mark packet | odp_flow [-generate]}",
8178 2, 6, ofproto_unixctl_trace
, NULL
);
8179 unixctl_command_register("fdb/flush", "[bridge]", 0, 1,
8180 ofproto_unixctl_fdb_flush
, NULL
);
8181 unixctl_command_register("fdb/show", "bridge", 1, 1,
8182 ofproto_unixctl_fdb_show
, NULL
);
8183 unixctl_command_register("ofproto/clog", "", 0, 0,
8184 ofproto_dpif_clog
, NULL
);
8185 unixctl_command_register("ofproto/unclog", "", 0, 0,
8186 ofproto_dpif_unclog
, NULL
);
8187 unixctl_command_register("ofproto/self-check", "[bridge]", 0, 1,
8188 ofproto_dpif_self_check
, NULL
);
8189 unixctl_command_register("dpif/dump-dps", "", 0, 0,
8190 ofproto_unixctl_dpif_dump_dps
, NULL
);
8191 unixctl_command_register("dpif/show", "[bridge]", 0, INT_MAX
,
8192 ofproto_unixctl_dpif_show
, NULL
);
8193 unixctl_command_register("dpif/dump-flows", "bridge", 1, 1,
8194 ofproto_unixctl_dpif_dump_flows
, NULL
);
8195 unixctl_command_register("dpif/del-flows", "bridge", 1, 1,
8196 ofproto_unixctl_dpif_del_flows
, NULL
);
8199 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
8201 * This is deprecated. It is only for compatibility with broken device drivers
8202 * in old versions of Linux that do not properly support VLANs when VLAN
8203 * devices are not used. When broken device drivers are no longer in
8204 * widespread use, we will delete these interfaces. */
8207 set_realdev(struct ofport
*ofport_
, uint16_t realdev_ofp_port
, int vid
)
8209 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(ofport_
->ofproto
);
8210 struct ofport_dpif
*ofport
= ofport_dpif_cast(ofport_
);
8212 if (realdev_ofp_port
== ofport
->realdev_ofp_port
8213 && vid
== ofport
->vlandev_vid
) {
8217 ofproto
->backer
->need_revalidate
= REV_RECONFIGURE
;
8219 if (ofport
->realdev_ofp_port
) {
8222 if (realdev_ofp_port
&& ofport
->bundle
) {
8223 /* vlandevs are enslaved to their realdevs, so they are not allowed to
8224 * themselves be part of a bundle. */
8225 bundle_set(ofport
->up
.ofproto
, ofport
->bundle
, NULL
);
8228 ofport
->realdev_ofp_port
= realdev_ofp_port
;
8229 ofport
->vlandev_vid
= vid
;
8231 if (realdev_ofp_port
) {
8232 vsp_add(ofport
, realdev_ofp_port
, vid
);
8239 hash_realdev_vid(uint16_t realdev_ofp_port
, int vid
)
8241 return hash_2words(realdev_ofp_port
, vid
);
8244 /* Returns the ODP port number of the Linux VLAN device that corresponds to
8245 * 'vlan_tci' on the network device with port number 'realdev_odp_port' in
8246 * 'ofproto'. For example, given 'realdev_odp_port' of eth0 and 'vlan_tci' 9,
8247 * it would return the port number of eth0.9.
8249 * Unless VLAN splinters are enabled for port 'realdev_odp_port', this
8250 * function just returns its 'realdev_odp_port' argument. */
8252 vsp_realdev_to_vlandev(const struct ofproto_dpif
*ofproto
,
8253 uint32_t realdev_odp_port
, ovs_be16 vlan_tci
)
8255 if (!hmap_is_empty(&ofproto
->realdev_vid_map
)) {
8256 uint16_t realdev_ofp_port
;
8257 int vid
= vlan_tci_to_vid(vlan_tci
);
8258 const struct vlan_splinter
*vsp
;
8260 realdev_ofp_port
= odp_port_to_ofp_port(ofproto
, realdev_odp_port
);
8261 HMAP_FOR_EACH_WITH_HASH (vsp
, realdev_vid_node
,
8262 hash_realdev_vid(realdev_ofp_port
, vid
),
8263 &ofproto
->realdev_vid_map
) {
8264 if (vsp
->realdev_ofp_port
== realdev_ofp_port
8265 && vsp
->vid
== vid
) {
8266 return ofp_port_to_odp_port(ofproto
, vsp
->vlandev_ofp_port
);
8270 return realdev_odp_port
;
8273 static struct vlan_splinter
*
8274 vlandev_find(const struct ofproto_dpif
*ofproto
, uint16_t vlandev_ofp_port
)
8276 struct vlan_splinter
*vsp
;
8278 HMAP_FOR_EACH_WITH_HASH (vsp
, vlandev_node
, hash_int(vlandev_ofp_port
, 0),
8279 &ofproto
->vlandev_map
) {
8280 if (vsp
->vlandev_ofp_port
== vlandev_ofp_port
) {
8288 /* Returns the OpenFlow port number of the "real" device underlying the Linux
8289 * VLAN device with OpenFlow port number 'vlandev_ofp_port' and stores the
8290 * VLAN VID of the Linux VLAN device in '*vid'. For example, given
8291 * 'vlandev_ofp_port' of eth0.9, it would return the OpenFlow port number of
8292 * eth0 and store 9 in '*vid'.
8294 * Returns 0 and does not modify '*vid' if 'vlandev_ofp_port' is not a Linux
8295 * VLAN device. Unless VLAN splinters are enabled, this is what this function
8298 vsp_vlandev_to_realdev(const struct ofproto_dpif
*ofproto
,
8299 uint16_t vlandev_ofp_port
, int *vid
)
8301 if (!hmap_is_empty(&ofproto
->vlandev_map
)) {
8302 const struct vlan_splinter
*vsp
;
8304 vsp
= vlandev_find(ofproto
, vlandev_ofp_port
);
8309 return vsp
->realdev_ofp_port
;
8315 /* Given 'flow', a flow representing a packet received on 'ofproto', checks
8316 * whether 'flow->in_port' represents a Linux VLAN device. If so, changes
8317 * 'flow->in_port' to the "real" device backing the VLAN device, sets
8318 * 'flow->vlan_tci' to the VLAN VID, and returns true. Otherwise (which is
8319 * always the case unless VLAN splinters are enabled), returns false without
8320 * making any changes. */
8322 vsp_adjust_flow(const struct ofproto_dpif
*ofproto
, struct flow
*flow
)
8327 realdev
= vsp_vlandev_to_realdev(ofproto
, flow
->in_port
, &vid
);
8332 /* Cause the flow to be processed as if it came in on the real device with
8333 * the VLAN device's VLAN ID. */
8334 flow
->in_port
= realdev
;
8335 flow
->vlan_tci
= htons((vid
& VLAN_VID_MASK
) | VLAN_CFI
);
8340 vsp_remove(struct ofport_dpif
*port
)
8342 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(port
->up
.ofproto
);
8343 struct vlan_splinter
*vsp
;
8345 vsp
= vlandev_find(ofproto
, port
->up
.ofp_port
);
8347 hmap_remove(&ofproto
->vlandev_map
, &vsp
->vlandev_node
);
8348 hmap_remove(&ofproto
->realdev_vid_map
, &vsp
->realdev_vid_node
);
8351 port
->realdev_ofp_port
= 0;
8353 VLOG_ERR("missing vlan device record");
8358 vsp_add(struct ofport_dpif
*port
, uint16_t realdev_ofp_port
, int vid
)
8360 struct ofproto_dpif
*ofproto
= ofproto_dpif_cast(port
->up
.ofproto
);
8362 if (!vsp_vlandev_to_realdev(ofproto
, port
->up
.ofp_port
, NULL
)
8363 && (vsp_realdev_to_vlandev(ofproto
, realdev_ofp_port
, htons(vid
))
8364 == realdev_ofp_port
)) {
8365 struct vlan_splinter
*vsp
;
8367 vsp
= xmalloc(sizeof *vsp
);
8368 hmap_insert(&ofproto
->vlandev_map
, &vsp
->vlandev_node
,
8369 hash_int(port
->up
.ofp_port
, 0));
8370 hmap_insert(&ofproto
->realdev_vid_map
, &vsp
->realdev_vid_node
,
8371 hash_realdev_vid(realdev_ofp_port
, vid
));
8372 vsp
->realdev_ofp_port
= realdev_ofp_port
;
8373 vsp
->vlandev_ofp_port
= port
->up
.ofp_port
;
8376 port
->realdev_ofp_port
= realdev_ofp_port
;
8378 VLOG_ERR("duplicate vlan device record");
8383 ofp_port_to_odp_port(const struct ofproto_dpif
*ofproto
, uint16_t ofp_port
)
8385 const struct ofport_dpif
*ofport
= get_ofp_port(ofproto
, ofp_port
);
8386 return ofport
? ofport
->odp_port
: OVSP_NONE
;
8389 static struct ofport_dpif
*
8390 odp_port_to_ofport(const struct dpif_backer
*backer
, uint32_t odp_port
)
8392 struct ofport_dpif
*port
;
8394 HMAP_FOR_EACH_IN_BUCKET (port
, odp_port_node
,
8395 hash_int(odp_port
, 0),
8396 &backer
->odp_to_ofport_map
) {
8397 if (port
->odp_port
== odp_port
) {
8406 odp_port_to_ofp_port(const struct ofproto_dpif
*ofproto
, uint32_t odp_port
)
8408 struct ofport_dpif
*port
;
8410 port
= odp_port_to_ofport(ofproto
->backer
, odp_port
);
8411 if (port
&& &ofproto
->up
== port
->up
.ofproto
) {
8412 return port
->up
.ofp_port
;
8418 const struct ofproto_class ofproto_dpif_class
= {
8453 port_is_lacp_current
,
8454 NULL
, /* rule_choose_table */
8461 rule_modify_actions
,
8472 get_stp_port_status
,
8479 is_mirror_output_bundle
,
8480 forward_bpdu_changed
,
8481 set_mac_table_config
,