*
* - Do not include packet or bytes that can be obtained from any facet's
* packet_count or byte_count member or that can be obtained from the
- * datapath by, e.g., dpif_flow_get() for any facet.
+ * datapath by, e.g., dpif_flow_get() for any subfacet.
*/
uint64_t packet_count; /* Number of packets received. */
uint64_t byte_count; /* Number of bytes received. */
static struct rule_dpif *rule_dpif_lookup(struct ofproto_dpif *,
const struct flow *, uint8_t table);
+static void flow_push_stats(const struct rule_dpif *, const struct flow *,
+ uint64_t packets, uint64_t bytes,
+ long long int used);
+
+static uint32_t rule_calculate_tag(const struct flow *,
+ const struct flow_wildcards *,
+ uint32_t basis);
+static void rule_invalidate(const struct rule_dpif *);
+
#define MAX_MIRRORS 32
typedef uint32_t mirror_mask_t;
#define MIRROR_MASK_C(X) UINT32_C(X)
* NULL if all VLANs are trunked. */
struct lacp *lacp; /* LACP if LACP is enabled, otherwise NULL. */
struct bond *bond; /* Nonnull iff more than one port. */
+ bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */
/* Status. */
bool floodable; /* True if no port has OFPPC_NO_FLOOD set. */
static struct ofpbuf *xlate_actions(struct action_xlate_ctx *,
const union ofp_action *in, size_t n_in);
-/* An exact-match instantiation of an OpenFlow flow. */
+/* An exact-match instantiation of an OpenFlow flow.
+ *
+ * A facet associates a "struct flow", which represents the Open vSwitch
+ * userspace idea of an exact-match flow, with a set of datapath actions.
+ *
+ * A facet contains one or more subfacets. Each subfacet tracks the datapath's
+ * idea of the exact-match flow equivalent to the facet. When the kernel
+ * module (or other dpif implementation) and Open vSwitch userspace agree on
+ * the definition of a flow key, there is exactly one subfacet per facet. If
+ * the dpif implementation supports more-specific flow matching than userspace,
+ * however, a facet can have more than one subfacet, each of which corresponds
+ * to some distinction in flow that userspace simply doesn't understand.
+ *
+ * Flow expiration works in terms of subfacets, so a facet must have at least
+ * one subfacet or it will never expire, leaking memory. */
struct facet {
+ /* Owners. */
+ struct hmap_node hmap_node; /* In owning ofproto's 'facets' hmap. */
+ struct list list_node; /* In owning rule's 'facets' list. */
+ struct rule_dpif *rule; /* Owning rule. */
+
+ /* Owned data. */
+ struct list subfacets;
long long int used; /* Time last used; time created if not used. */
+ /* Key. */
+ struct flow flow;
+
/* These statistics:
*
* - Do include packets and bytes sent "by hand", e.g. with
* dpif_execute().
*
* - Do include packets and bytes that were obtained from the datapath
- * when its statistics were reset (e.g. dpif_flow_put() with
+ * when a subfacet's statistics were reset (e.g. dpif_flow_put() with
* DPIF_FP_ZERO_STATS).
+ *
+ * - Do not include packets or bytes that can be obtained from the
+ * datapath for any existing subfacet.
*/
uint64_t packet_count; /* Number of packets received. */
uint64_t byte_count; /* Number of bytes received. */
- uint64_t dp_packet_count; /* Last known packet count in the datapath. */
- uint64_t dp_byte_count; /* Last known byte count in the datapath. */
-
+ /* Resubmit statistics. */
uint64_t rs_packet_count; /* Packets pushed to resubmit children. */
uint64_t rs_byte_count; /* Bytes pushed to resubmit children. */
long long int rs_used; /* Used time pushed to resubmit children. */
+ /* Accounting. */
uint64_t accounted_bytes; /* Bytes processed by facet_account(). */
+ struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */
- struct hmap_node hmap_node; /* In owning ofproto's 'facets' hmap. */
- struct list list_node; /* In owning rule's 'facets' list. */
- struct rule_dpif *rule; /* Owning rule. */
- struct flow flow; /* Exact-match flow. */
- bool installed; /* Installed in datapath? */
- bool may_install; /* True ordinarily; false if actions must
- * be reassessed for every packet. */
+ /* Datapath actions. */
+ bool may_install; /* Reassess actions for every packet? */
bool has_learn; /* Actions include NXAST_LEARN? */
bool has_normal; /* Actions output to OFPP_NORMAL? */
size_t actions_len; /* Number of bytes in actions[]. */
struct nlattr *actions; /* Datapath actions. */
- tag_type tags; /* Tags. */
- struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */
+ tag_type tags; /* Tags that would require revalidation. */
};
static struct facet *facet_create(struct rule_dpif *, const struct flow *);
const struct nlattr *odp_actions,
size_t actions_len,
struct ofpbuf *packet);
-static void facet_execute(struct ofproto_dpif *, struct facet *,
- struct ofpbuf *packet);
-
-static int facet_put__(struct ofproto_dpif *, struct facet *,
- const struct nlattr *actions, size_t actions_len,
- struct dpif_flow_stats *);
-static void facet_install(struct ofproto_dpif *, struct facet *,
- bool zero_stats);
-static void facet_uninstall(struct ofproto_dpif *, struct facet *);
+
static void facet_flush_stats(struct ofproto_dpif *, struct facet *);
static void facet_make_actions(struct ofproto_dpif *, struct facet *,
const struct ofpbuf *packet);
static void facet_update_time(struct ofproto_dpif *, struct facet *,
long long int used);
-static void facet_update_stats(struct ofproto_dpif *, struct facet *,
- const struct dpif_flow_stats *);
static void facet_reset_counters(struct facet *);
-static void facet_reset_dp_stats(struct facet *, struct dpif_flow_stats *);
static void facet_push_stats(struct facet *);
static void facet_account(struct ofproto_dpif *, struct facet *);
static bool facet_is_controller_flow(struct facet *);
-static void flow_push_stats(const struct rule_dpif *,
- struct flow *, uint64_t packets, uint64_t bytes,
- long long int used);
+/* A dpif flow associated with a facet.
+ *
+ * See also the large comment on struct facet. */
+struct subfacet {
+ /* Owners. */
+ struct hmap_node hmap_node; /* In struct ofproto_dpif 'subfacets' list. */
+ struct list list_node; /* In struct facet's 'facets' list. */
+ struct facet *facet; /* Owning facet. */
+
+ /* Key.
+ *
+ * To save memory in the common case, 'key' is NULL if 'key_fitness' is
+ * ODP_FIT_PERFECT, that is, odp_flow_key_from_flow() can accurately
+ * regenerate the ODP flow key from ->facet->flow. */
+ enum odp_key_fitness key_fitness;
+ struct nlattr *key;
+ int key_len;
-static uint32_t rule_calculate_tag(const struct flow *,
- const struct flow_wildcards *,
- uint32_t basis);
-static void rule_invalidate(const struct rule_dpif *);
+ long long int used; /* Time last used; time created if not used. */
+
+ uint64_t dp_packet_count; /* Last known packet count in the datapath. */
+ uint64_t dp_byte_count; /* Last known byte count in the datapath. */
+
+ bool installed; /* Installed in datapath? */
+};
+
+static struct subfacet *subfacet_create(struct ofproto_dpif *, struct facet *,
+ enum odp_key_fitness,
+ const struct nlattr *key,
+ size_t key_len);
+static struct subfacet *subfacet_find(struct ofproto_dpif *,
+ const struct nlattr *key, size_t key_len,
+ const struct flow *);
+static void subfacet_destroy(struct ofproto_dpif *, struct subfacet *);
+static void subfacet_destroy__(struct ofproto_dpif *, struct subfacet *);
+static void subfacet_reset_dp_stats(struct subfacet *,
+ struct dpif_flow_stats *);
+static void subfacet_update_time(struct ofproto_dpif *, struct subfacet *,
+ long long int used);
+static void subfacet_update_stats(struct ofproto_dpif *, struct subfacet *,
+ const struct dpif_flow_stats *);
+static int subfacet_install(struct ofproto_dpif *, struct subfacet *,
+ const struct nlattr *actions, size_t actions_len,
+ struct dpif_flow_stats *);
+static void subfacet_uninstall(struct ofproto_dpif *, struct subfacet *);
struct ofport_dpif {
struct ofport up;
struct stp_port *stp_port; /* Spanning Tree Protocol, if any. */
enum stp_state stp_state; /* Always STP_DISABLED if STP not in use. */
long long int stp_state_entered;
+
+ struct hmap priorities; /* Map of attached 'priority_to_dscp's. */
+};
+
+/* Node in 'ofport_dpif''s 'priorities' map. Used to maintain a map from
+ * 'priority' (the datapath's term for QoS queue) to the dscp bits which all
+ * traffic egressing the 'ofport' with that priority should be marked with. */
+struct priority_to_dscp {
+ struct hmap_node hmap_node; /* Node in 'ofport_dpif''s 'priorities' map. */
+ uint32_t priority; /* Priority of this queue (see struct flow). */
+
+ uint8_t dscp; /* DSCP bits to mark outgoing traffic with. */
};
static struct ofport_dpif *
static void port_run(struct ofport_dpif *);
static void port_wait(struct ofport_dpif *);
static int set_cfm(struct ofport *, const struct cfm_settings *);
+static void ofport_clear_priorities(struct ofport_dpif *);
struct dpif_completion {
struct list list_node;
/* Facets. */
struct hmap facets;
+ struct hmap subfacets;
/* Revalidation. */
struct table_dpif tables[N_TABLES];
static void update_learning_table(struct ofproto_dpif *,
const struct flow *, int vlan,
struct ofbundle *);
-static bool is_admissible(struct ofproto_dpif *, const struct flow *,
- bool have_packet, tag_type *, int *vlanp,
- struct ofbundle **in_bundlep);
-
/* Upcalls. */
#define FLOW_MISS_MAX_BATCH 50
+
static void handle_upcall(struct ofproto_dpif *, struct dpif_upcall *);
static void handle_miss_upcalls(struct ofproto_dpif *,
struct dpif_upcall *, size_t n);
/* Flow expiration. */
static int expire(struct ofproto_dpif *);
+/* NetFlow. */
+static void send_netflow_active_timeouts(struct ofproto_dpif *);
+
/* Utilities. */
static int send_packet(struct ofproto_dpif *, uint32_t odp_port,
const struct ofpbuf *packet);
timer_set_duration(&ofproto->next_expiration, 1000);
hmap_init(&ofproto->facets);
+ hmap_init(&ofproto->subfacets);
for (i = 0; i < N_TABLES; i++) {
struct table_dpif *table = &ofproto->tables[i];
mac_learning_destroy(ofproto->ml);
hmap_destroy(&ofproto->facets);
+ hmap_destroy(&ofproto->subfacets);
dpif_close(ofproto->dpif);
}
}
if (ofproto->netflow) {
- netflow_run(ofproto->netflow);
+ if (netflow_run(ofproto->netflow)) {
+ send_netflow_active_timeouts(ofproto);
+ }
}
if (ofproto->sflow) {
dpif_sflow_run(ofproto->sflow);
HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
bundle_wait(bundle);
}
+ if (ofproto->netflow) {
+ netflow_wait(ofproto->netflow);
+ }
mac_learning_wait(ofproto->ml);
stp_wait(ofproto);
if (ofproto->need_revalidate) {
* bother trying to uninstall it. There is no point in uninstalling it
* individually since we are about to blow away all the facets with
* dpif_flow_flush(). */
- facet->installed = false;
- facet->dp_packet_count = 0;
- facet->dp_byte_count = 0;
+ struct subfacet *subfacet;
+
+ LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
+ subfacet->installed = false;
+ subfacet->dp_packet_count = 0;
+ subfacet->dp_byte_count = 0;
+ }
facet_remove(ofproto, facet);
}
dpif_flow_flush(ofproto->dpif);
htonll(s.n_hit + ofproto->n_matches));
}
-static int
-set_netflow(struct ofproto *ofproto_,
- const struct netflow_options *netflow_options)
-{
- struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
-
- if (netflow_options) {
- if (!ofproto->netflow) {
- ofproto->netflow = netflow_create();
- }
- return netflow_set_options(ofproto->netflow, netflow_options);
- } else {
- netflow_destroy(ofproto->netflow);
- ofproto->netflow = NULL;
- return 0;
- }
-}
-
static struct ofport *
port_alloc(void)
{
port->may_enable = true;
port->stp_port = NULL;
port->stp_state = STP_DISABLED;
+ hmap_init(&port->priorities);
if (ofproto->sflow) {
dpif_sflow_add_port(ofproto->sflow, port->odp_port,
if (ofproto->sflow) {
dpif_sflow_del_port(ofproto->sflow, port->odp_port);
}
+
+ ofport_clear_priorities(port);
+ hmap_destroy(&port->priorities);
}
static void
}
}
\f
+static struct priority_to_dscp *
+get_priority(const struct ofport_dpif *ofport, uint32_t priority)
+{
+ struct priority_to_dscp *pdscp;
+ uint32_t hash;
+
+ hash = hash_int(priority, 0);
+ HMAP_FOR_EACH_IN_BUCKET (pdscp, hmap_node, hash, &ofport->priorities) {
+ if (pdscp->priority == priority) {
+ return pdscp;
+ }
+ }
+ return NULL;
+}
+
+static void
+ofport_clear_priorities(struct ofport_dpif *ofport)
+{
+ struct priority_to_dscp *pdscp, *next;
+
+ HMAP_FOR_EACH_SAFE (pdscp, next, hmap_node, &ofport->priorities) {
+ hmap_remove(&ofport->priorities, &pdscp->hmap_node);
+ free(pdscp);
+ }
+}
+
+static int
+set_queues(struct ofport *ofport_,
+ const struct ofproto_port_queue *qdscp_list,
+ size_t n_qdscp)
+{
+ struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
+ struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
+ struct hmap new = HMAP_INITIALIZER(&new);
+ size_t i;
+
+ for (i = 0; i < n_qdscp; i++) {
+ struct priority_to_dscp *pdscp;
+ uint32_t priority;
+ uint8_t dscp;
+
+ dscp = (qdscp_list[i].dscp << 2) & IP_DSCP_MASK;
+ if (dpif_queue_to_priority(ofproto->dpif, qdscp_list[i].queue,
+ &priority)) {
+ continue;
+ }
+
+ pdscp = get_priority(ofport, priority);
+ if (pdscp) {
+ hmap_remove(&ofport->priorities, &pdscp->hmap_node);
+ } else {
+ pdscp = xmalloc(sizeof *pdscp);
+ pdscp->priority = priority;
+ pdscp->dscp = dscp;
+ ofproto->need_revalidate = true;
+ }
+
+ if (pdscp->dscp != dscp) {
+ pdscp->dscp = dscp;
+ ofproto->need_revalidate = true;
+ }
+
+ hmap_insert(&new, &pdscp->hmap_node, hash_int(pdscp->priority, 0));
+ }
+
+ if (!hmap_is_empty(&ofport->priorities)) {
+ ofport_clear_priorities(ofport);
+ ofproto->need_revalidate = true;
+ }
+
+ hmap_swap(&new, &ofport->priorities);
+ hmap_destroy(&new);
+
+ return 0;
+}
+\f
/* Bundles. */
/* Expires all MAC learning entries associated with 'port' and forces ofproto
bundle->floodable = true;
LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
- if (port->up.opp.config & htonl(OFPPC_NO_FLOOD)
- || !stp_forward_in_state(port->stp_state)) {
+ if (port->up.opp.config & htonl(OFPPC_NO_FLOOD)) {
bundle->floodable = false;
break;
}
port->bundle = bundle;
list_push_back(&bundle->ports, &port->bundle_node);
- if (port->up.opp.config & htonl(OFPPC_NO_FLOOD)
- || !stp_forward_in_state(port->stp_state)) {
+ if (port->up.opp.config & htonl(OFPPC_NO_FLOOD)) {
bundle->floodable = false;
}
}
bundle->vlan_mode = PORT_VLAN_TRUNK;
bundle->vlan = -1;
bundle->trunks = NULL;
+ bundle->use_priority_tags = s->use_priority_tags;
bundle->lacp = NULL;
bundle->bond = NULL;
}
/* Set VLAN tagging mode */
- if (s->vlan_mode != bundle->vlan_mode) {
+ if (s->vlan_mode != bundle->vlan_mode
+ || s->use_priority_tags != bundle->use_priority_tags) {
bundle->vlan_mode = s->vlan_mode;
+ bundle->use_priority_tags = s->use_priority_tags;
need_flush = true;
}
for (j = i + 1; j < MAX_MIRRORS; j++) {
struct ofmirror *m2 = ofproto->mirrors[j];
- if (m1->out == m2->out && m1->out_vlan == m2->out_vlan) {
+ if (m2 && m1->out == m2->out && m1->out_vlan == m2->out_vlan) {
m1->dup_mirrors |= MIRROR_MASK_C(1) << j;
m2->dup_mirrors |= m1->dup_mirrors;
}
struct flow_miss {
struct hmap_node hmap_node;
struct flow flow;
+ enum odp_key_fitness key_fitness;
const struct nlattr *key;
size_t key_len;
struct list packets;
struct flow_miss_op {
union dpif_op dpif_op;
- struct facet *facet;
+ struct subfacet *subfacet;
};
/* Sends an OFPT_PACKET_IN message for 'packet' of type OFPR_NO_MATCH to each
static struct flow_miss *
flow_miss_create(struct hmap *todo, const struct flow *flow,
+ enum odp_key_fitness key_fitness,
const struct nlattr *key, size_t key_len)
{
uint32_t hash = flow_hash(flow, 0);
miss = xmalloc(sizeof *miss);
hmap_insert(todo, &miss->hmap_node, hash);
miss->flow = *flow;
+ miss->key_fitness = key_fitness;
miss->key = key;
miss->key_len = key_len;
list_init(&miss->packets);
{
const struct flow *flow = &miss->flow;
struct ofpbuf *packet, *next_packet;
+ struct subfacet *subfacet;
struct facet *facet;
facet = facet_lookup_valid(ofproto, flow);
facet = facet_create(rule, flow);
}
+ subfacet = subfacet_create(ofproto, facet,
+ miss->key_fitness, miss->key, miss->key_len);
+
LIST_FOR_EACH_SAFE (packet, next_packet, list_node, &miss->packets) {
list_remove(&packet->list_node);
ofproto->n_matches++;
struct flow_miss_op *op = &ops[(*n_ops)++];
struct dpif_execute *execute = &op->dpif_op.execute;
- op->facet = facet;
+ op->subfacet = subfacet;
execute->type = DPIF_OP_EXECUTE;
execute->key = miss->key;
execute->key_len = miss->key_len;
}
}
- if (facet->may_install) {
+ if (facet->may_install && subfacet->key_fitness != ODP_FIT_TOO_LITTLE) {
struct flow_miss_op *op = &ops[(*n_ops)++];
struct dpif_flow_put *put = &op->dpif_op.flow_put;
- op->facet = facet;
+ op->subfacet = subfacet;
put->type = DPIF_OP_FLOW_PUT;
put->flags = DPIF_FP_CREATE | DPIF_FP_MODIFY;
put->key = miss->key;
* that we can process them together. */
hmap_init(&todo);
for (upcall = upcalls; upcall < &upcalls[n_upcalls]; upcall++) {
+ enum odp_key_fitness fitness;
struct flow_miss *miss;
struct flow flow;
- /* Obtain in_port and tun_id, at least, then set 'flow''s header
- * pointers. */
- odp_flow_key_to_flow(upcall->key, upcall->key_len, &flow);
+ /* Obtain metadata and check userspace/kernel agreement on flow match,
+ * then set 'flow''s header pointers. */
+ fitness = odp_flow_key_to_flow(upcall->key, upcall->key_len, &flow);
+ if (fitness == ODP_FIT_ERROR) {
+ continue;
+ }
flow_extract(upcall->packet, flow.priority, flow.tun_id,
flow.in_port, &flow);
}
/* Add other packets to a to-do list. */
- miss = flow_miss_create(&todo, &flow, upcall->key, upcall->key_len);
+ miss = flow_miss_create(&todo, &flow, fitness,
+ upcall->key, upcall->key_len);
list_push_back(&miss->packets, &upcall->packet->list_node);
}
switch (op->dpif_op.type) {
case DPIF_OP_EXECUTE:
execute = &op->dpif_op.execute;
- if (op->facet->actions != execute->actions) {
+ if (op->subfacet->facet->actions != execute->actions) {
free((struct nlattr *) execute->actions);
}
ofpbuf_delete((struct ofpbuf *) execute->packet);
case DPIF_OP_FLOW_PUT:
put = &op->dpif_op.flow_put;
if (!put->error) {
- op->facet->installed = true;
+ op->subfacet->installed = true;
}
break;
}
\f
/* Flow expiration. */
-static int facet_max_idle(const struct ofproto_dpif *);
+static int subfacet_max_idle(const struct ofproto_dpif *);
static void update_stats(struct ofproto_dpif *);
static void rule_expire(struct rule_dpif *);
-static void expire_facets(struct ofproto_dpif *, int dp_max_idle);
+static void expire_subfacets(struct ofproto_dpif *, int dp_max_idle);
/* This function is called periodically by run(). Its job is to collect
* updates for the flows that have been installed into the datapath, most
/* Update stats for each flow in the datapath. */
update_stats(ofproto);
- /* Expire facets that have been idle too long. */
- dp_max_idle = facet_max_idle(ofproto);
- expire_facets(ofproto, dp_max_idle);
+ /* Expire subfacets that have been idle too long. */
+ dp_max_idle = subfacet_max_idle(ofproto);
+ expire_subfacets(ofproto, dp_max_idle);
/* Expire OpenFlow flows whose idle_timeout or hard_timeout has passed. */
OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) {
dpif_flow_dump_start(&dump, p->dpif);
while (dpif_flow_dump_next(&dump, &key, &key_len, NULL, NULL, &stats)) {
- struct facet *facet;
+ enum odp_key_fitness fitness;
+ struct subfacet *subfacet;
struct flow flow;
- if (odp_flow_key_to_flow(key, key_len, &flow)) {
- struct ds s;
-
- ds_init(&s);
- odp_flow_key_format(key, key_len, &s);
- VLOG_WARN_RL(&rl, "failed to convert datapath flow key to flow: %s",
- ds_cstr(&s));
- ds_destroy(&s);
-
+ fitness = odp_flow_key_to_flow(key, key_len, &flow);
+ if (fitness == ODP_FIT_ERROR) {
continue;
}
- facet = facet_find(p, &flow);
- if (facet && facet->installed) {
+ subfacet = subfacet_find(p, key, key_len, &flow);
+ if (subfacet && subfacet->installed) {
+ struct facet *facet = subfacet->facet;
- if (stats->n_packets >= facet->dp_packet_count) {
- uint64_t extra = stats->n_packets - facet->dp_packet_count;
+ if (stats->n_packets >= subfacet->dp_packet_count) {
+ uint64_t extra = stats->n_packets - subfacet->dp_packet_count;
facet->packet_count += extra;
} else {
VLOG_WARN_RL(&rl, "unexpected packet count from the datapath");
}
- if (stats->n_bytes >= facet->dp_byte_count) {
- facet->byte_count += stats->n_bytes - facet->dp_byte_count;
+ if (stats->n_bytes >= subfacet->dp_byte_count) {
+ facet->byte_count += stats->n_bytes - subfacet->dp_byte_count;
} else {
VLOG_WARN_RL(&rl, "unexpected byte count from datapath");
}
- facet->dp_packet_count = stats->n_packets;
- facet->dp_byte_count = stats->n_bytes;
+ subfacet->dp_packet_count = stats->n_packets;
+ subfacet->dp_byte_count = stats->n_bytes;
- facet_update_time(p, facet, stats->used);
+ subfacet_update_time(p, subfacet, stats->used);
facet_account(p, facet);
facet_push_stats(facet);
} else {
- /* There's a flow in the datapath that we know nothing about.
- * Delete it. */
+ /* There's a flow in the datapath that we know nothing about, or a
+ * flow that shouldn't be installed but was anyway. Delete it. */
COVERAGE_INC(facet_unexpected);
dpif_flow_del(p->dpif, key, key_len, NULL);
}
}
/* Calculates and returns the number of milliseconds of idle time after which
- * facets should expire from the datapath and we should fold their statistics
- * into their parent rules in userspace. */
+ * subfacets should expire from the datapath. When a subfacet expires, we fold
+ * its statistics into its facet, and when a facet's last subfacet expires, we
+ * fold its statistic into its rule. */
static int
-facet_max_idle(const struct ofproto_dpif *ofproto)
+subfacet_max_idle(const struct ofproto_dpif *ofproto)
{
/*
* Idle time histogram.
*
- * Most of the time a switch has a relatively small number of facets. When
- * this is the case we might as well keep statistics for all of them in
- * userspace and to cache them in the kernel datapath for performance as
+ * Most of the time a switch has a relatively small number of subfacets.
+ * When this is the case we might as well keep statistics for all of them
+ * in userspace and to cache them in the kernel datapath for performance as
* well.
*
- * As the number of facets increases, the memory required to maintain
+ * As the number of subfacets increases, the memory required to maintain
* statistics about them in userspace and in the kernel becomes
- * significant. However, with a large number of facets it is likely that
- * only a few of them are "heavy hitters" that consume a large amount of
- * bandwidth. At this point, only heavy hitters are worth caching in the
- * kernel and maintaining in userspaces; other facets we can discard.
+ * significant. However, with a large number of subfacets it is likely
+ * that only a few of them are "heavy hitters" that consume a large amount
+ * of bandwidth. At this point, only heavy hitters are worth caching in
+ * the kernel and maintaining in userspaces; other subfacets we can
+ * discard.
*
* The technique used to compute the idle time is to build a histogram with
- * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each facet
+ * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each subfacet
* that is installed in the kernel gets dropped in the appropriate bucket.
* After the histogram has been built, we compute the cutoff so that only
- * the most-recently-used 1% of facets (but at least
+ * the most-recently-used 1% of subfacets (but at least
* ofproto->up.flow_eviction_threshold flows) are kept cached. At least
- * the most-recently-used bucket of facets is kept, so actually an
- * arbitrary number of facets can be kept in any given expiration run
+ * the most-recently-used bucket of subfacets is kept, so actually an
+ * arbitrary number of subfacets can be kept in any given expiration run
* (though the next run will delete most of those unless they receive
* additional data).
*
- * This requires a second pass through the facets, in addition to the pass
- * made by update_stats(), because the former function never looks
- * at uninstallable facets.
+ * This requires a second pass through the subfacets, in addition to the
+ * pass made by update_stats(), because the former function never looks at
+ * uninstallable subfacets.
*/
enum { BUCKET_WIDTH = ROUND_UP(100, TIME_UPDATE_INTERVAL) };
enum { N_BUCKETS = 5000 / BUCKET_WIDTH };
int buckets[N_BUCKETS] = { 0 };
int total, subtotal, bucket;
- struct facet *facet;
+ struct subfacet *subfacet;
long long int now;
int i;
- total = hmap_count(&ofproto->facets);
+ total = hmap_count(&ofproto->subfacets);
if (total <= ofproto->up.flow_eviction_threshold) {
return N_BUCKETS * BUCKET_WIDTH;
}
/* Build histogram. */
now = time_msec();
- HMAP_FOR_EACH (facet, hmap_node, &ofproto->facets) {
- long long int idle = now - facet->used;
+ HMAP_FOR_EACH (subfacet, hmap_node, &ofproto->subfacets) {
+ long long int idle = now - subfacet->used;
int bucket = (idle <= 0 ? 0
: idle >= BUCKET_WIDTH * N_BUCKETS ? N_BUCKETS - 1
: (unsigned int) idle / BUCKET_WIDTH);
}
static void
-facet_active_timeout(struct ofproto_dpif *ofproto, struct facet *facet)
-{
- if (ofproto->netflow && !facet_is_controller_flow(facet) &&
- netflow_active_timeout_expired(ofproto->netflow, &facet->nf_flow)) {
- struct ofexpired expired;
-
- if (facet->installed) {
- struct dpif_flow_stats stats;
-
- facet_put__(ofproto, facet, facet->actions, facet->actions_len,
- &stats);
- facet_update_stats(ofproto, facet, &stats);
- }
-
- expired.flow = facet->flow;
- expired.packet_count = facet->packet_count;
- expired.byte_count = facet->byte_count;
- expired.used = facet->used;
- netflow_expire(ofproto->netflow, &facet->nf_flow, &expired);
- }
-}
-
-static void
-expire_facets(struct ofproto_dpif *ofproto, int dp_max_idle)
+expire_subfacets(struct ofproto_dpif *ofproto, int dp_max_idle)
{
long long int cutoff = time_msec() - dp_max_idle;
- struct facet *facet, *next_facet;
+ struct subfacet *subfacet, *next_subfacet;
- HMAP_FOR_EACH_SAFE (facet, next_facet, hmap_node, &ofproto->facets) {
- facet_active_timeout(ofproto, facet);
- if (facet->used < cutoff) {
- facet_remove(ofproto, facet);
+ HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node,
+ &ofproto->subfacets) {
+ if (subfacet->used < cutoff) {
+ subfacet_destroy(ofproto, subfacet);
}
}
}
* the ofproto's classifier table.
*
* The facet will initially have no ODP actions. The caller should fix that
- * by calling facet_make_actions(). */
+ * by calling facet_make_actions().
+ *
+ * The facet will initially have no subfacets. The caller should create (at
+ * least) one subfacet with subfacet_create(). */
static struct facet *
facet_create(struct rule_dpif *rule, const struct flow *flow)
{
list_push_back(&rule->facets, &facet->list_node);
facet->rule = rule;
facet->flow = *flow;
+ list_init(&facet->subfacets);
netflow_flow_init(&facet->nf_flow);
netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, facet->used);
return !error;
}
-/* Executes the actions indicated by 'facet' on 'packet' and credits 'facet''s
- * statistics appropriately. 'packet' must have at least sizeof(struct
- * ofp_packet_in) bytes of headroom.
- *
- * For correct results, 'packet' must actually be in 'facet''s flow; that is,
- * applying flow_extract() to 'packet' would yield the same flow as
- * 'facet->flow'.
- *
- * 'facet' must have accurately composed datapath actions; that is, it must
- * not be in need of revalidation.
- *
- * Takes ownership of 'packet'. */
-static void
-facet_execute(struct ofproto_dpif *ofproto, struct facet *facet,
- struct ofpbuf *packet)
-{
- struct dpif_flow_stats stats;
-
- assert(ofpbuf_headroom(packet) >= sizeof(struct ofp_packet_in));
-
- dpif_flow_stats_extract(&facet->flow, packet, &stats);
- stats.used = time_msec();
- if (execute_odp_actions(ofproto, &facet->flow,
- facet->actions, facet->actions_len, packet)) {
- facet_update_stats(ofproto, facet, &stats);
- }
-}
-
/* Remove 'facet' from 'ofproto' and free up the associated memory:
*
* - If 'facet' was installed in the datapath, uninstalls it and updates its
- * rule's statistics, via facet_uninstall().
+ * rule's statistics, via subfacet_uninstall().
*
* - Removes 'facet' from its rule and from ofproto->facets.
*/
static void
facet_remove(struct ofproto_dpif *ofproto, struct facet *facet)
{
- facet_uninstall(ofproto, facet);
+ struct subfacet *subfacet, *next_subfacet;
+
+ LIST_FOR_EACH_SAFE (subfacet, next_subfacet, list_node,
+ &facet->subfacets) {
+ subfacet_destroy__(ofproto, subfacet);
+ }
+
facet_flush_stats(ofproto, facet);
hmap_remove(&ofproto->facets, &facet->hmap_node);
list_remove(&facet->list_node);
ofpbuf_delete(odp_actions);
}
-/* Updates 'facet''s flow in the datapath setting its actions to 'actions_len'
- * bytes of actions in 'actions'. If 'stats' is non-null, statistics counters
- * in the datapath will be zeroed and 'stats' will be updated with traffic new
- * since 'facet' was last updated.
- *
- * Returns 0 if successful, otherwise a positive errno value.*/
-static int
-facet_put__(struct ofproto_dpif *ofproto, struct facet *facet,
- const struct nlattr *actions, size_t actions_len,
- struct dpif_flow_stats *stats)
-{
- struct odputil_keybuf keybuf;
- enum dpif_flow_put_flags flags;
- struct ofpbuf key;
- int ret;
-
- flags = DPIF_FP_CREATE | DPIF_FP_MODIFY;
- if (stats) {
- flags |= DPIF_FP_ZERO_STATS;
- }
-
- ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
- odp_flow_key_from_flow(&key, &facet->flow);
-
- ret = dpif_flow_put(ofproto->dpif, flags, key.data, key.size,
- actions, actions_len, stats);
-
- if (stats) {
- facet_reset_dp_stats(facet, stats);
- }
-
- return ret;
-}
-
-/* If 'facet' is installable, inserts or re-inserts it into 'p''s datapath. If
- * 'zero_stats' is true, clears any existing statistics from the datapath for
- * 'facet'. */
-static void
-facet_install(struct ofproto_dpif *p, struct facet *facet, bool zero_stats)
-{
- struct dpif_flow_stats stats;
-
- if (facet->may_install
- && !facet_put__(p, facet, facet->actions, facet->actions_len,
- zero_stats ? &stats : NULL)) {
- facet->installed = true;
- }
-}
-
static void
facet_account(struct ofproto_dpif *ofproto, struct facet *facet)
{
}
}
-/* If 'rule' is installed in the datapath, uninstalls it. */
-static void
-facet_uninstall(struct ofproto_dpif *p, struct facet *facet)
-{
- if (facet->installed) {
- struct odputil_keybuf keybuf;
- struct dpif_flow_stats stats;
- struct ofpbuf key;
- int error;
-
- ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
- odp_flow_key_from_flow(&key, &facet->flow);
-
- error = dpif_flow_del(p->dpif, key.data, key.size, &stats);
- facet_reset_dp_stats(facet, &stats);
- if (!error) {
- facet_update_stats(p, facet, &stats);
- }
- facet->installed = false;
- } else {
- assert(facet->dp_packet_count == 0);
- assert(facet->dp_byte_count == 0);
- }
-}
-
/* Returns true if the only action for 'facet' is to send to the controller.
* (We don't report NetFlow expiration messages for such facets because they
* are just part of the control logic for the network, not real traffic). */
htons(OFPP_CONTROLLER)));
}
-/* Resets 'facet''s datapath statistics counters. This should be called when
- * 'facet''s statistics are cleared in the datapath. If 'stats' is non-null,
- * it should contain the statistics returned by dpif when 'facet' was reset in
- * the datapath. 'stats' will be modified to only included statistics new
- * since 'facet' was last updated. */
-static void
-facet_reset_dp_stats(struct facet *facet, struct dpif_flow_stats *stats)
-{
- if (stats && facet->dp_packet_count <= stats->n_packets
- && facet->dp_byte_count <= stats->n_bytes) {
- stats->n_packets -= facet->dp_packet_count;
- stats->n_bytes -= facet->dp_byte_count;
- }
-
- facet->dp_packet_count = 0;
- facet->dp_byte_count = 0;
-}
-
/* Folds all of 'facet''s statistics into its rule. Also updates the
* accounting ofhook and emits a NetFlow expiration if appropriate. All of
* 'facet''s statistics in the datapath should have been zeroed and folded into
static void
facet_flush_stats(struct ofproto_dpif *ofproto, struct facet *facet)
{
- assert(!facet->dp_byte_count);
- assert(!facet->dp_packet_count);
+ struct subfacet *subfacet;
+
+ LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
+ assert(!subfacet->dp_byte_count);
+ assert(!subfacet->dp_packet_count);
+ }
facet_push_stats(facet);
facet_account(ofproto, facet);
struct action_xlate_ctx ctx;
struct ofpbuf *odp_actions;
struct rule_dpif *new_rule;
+ struct subfacet *subfacet;
bool actions_changed;
+ bool flush_stats;
COVERAGE_INC(facet_revalidate);
/* If the datapath actions changed or the installability changed,
* then we need to talk to the datapath. */
- if (actions_changed || ctx.may_set_up_flow != facet->installed) {
- if (ctx.may_set_up_flow) {
- struct dpif_flow_stats stats;
-
- facet_put__(ofproto, facet,
- odp_actions->data, odp_actions->size, &stats);
- facet_update_stats(ofproto, facet, &stats);
- } else {
- facet_uninstall(ofproto, facet);
+ flush_stats = false;
+ LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
+ bool should_install = (ctx.may_set_up_flow
+ && subfacet->key_fitness != ODP_FIT_TOO_LITTLE);
+ if (actions_changed || should_install != subfacet->installed) {
+ if (should_install) {
+ struct dpif_flow_stats stats;
+
+ subfacet_install(ofproto, subfacet,
+ odp_actions->data, odp_actions->size, &stats);
+ subfacet_update_stats(ofproto, subfacet, &stats);
+ } else {
+ subfacet_uninstall(ofproto, subfacet);
+ }
+ flush_stats = true;
}
-
- /* The datapath flow is gone or has zeroed stats, so push stats out of
- * 'facet' into 'rule'. */
+ }
+ if (flush_stats) {
facet_flush_stats(ofproto, facet);
}
}
}
-/* Folds the statistics from 'stats' into the counters in 'facet'.
- *
- * Because of the meaning of a facet's counters, it only makes sense to do this
- * if 'stats' are not tracked in the datapath, that is, if 'stats' represents a
- * packet that was sent by hand or if it represents statistics that have been
- * cleared out of the datapath. */
-static void
-facet_update_stats(struct ofproto_dpif *ofproto, struct facet *facet,
- const struct dpif_flow_stats *stats)
-{
- if (stats->n_packets || stats->used > facet->used) {
- facet_update_time(ofproto, facet, stats->used);
- facet->packet_count += stats->n_packets;
- facet->byte_count += stats->n_bytes;
- facet_push_stats(facet);
- netflow_flow_update_flags(&facet->nf_flow, stats->tcp_flags);
- }
-}
-
static void
facet_reset_counters(struct facet *facet)
{
* 'rule''s actions. */
static void
flow_push_stats(const struct rule_dpif *rule,
- struct flow *flow, uint64_t packets, uint64_t bytes,
+ const struct flow *flow, uint64_t packets, uint64_t bytes,
long long int used)
{
struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
rule->up.actions, rule->up.n_actions));
}
\f
-/* Rules. */
+/* Subfacets. */
+
+static struct subfacet *
+subfacet_find__(struct ofproto_dpif *ofproto,
+ const struct nlattr *key, size_t key_len, uint32_t key_hash,
+ const struct flow *flow)
+{
+ struct subfacet *subfacet;
+
+ HMAP_FOR_EACH_WITH_HASH (subfacet, hmap_node, key_hash,
+ &ofproto->subfacets) {
+ if (subfacet->key
+ ? (subfacet->key_len == key_len
+ && !memcmp(key, subfacet->key, key_len))
+ : flow_equal(flow, &subfacet->facet->flow)) {
+ return subfacet;
+ }
+ }
-static struct rule_dpif *
-rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow,
- uint8_t table_id)
+ return NULL;
+}
+
+/* Searches 'facet' (within 'ofproto') for a subfacet with the specified
+ * 'key_fitness', 'key', and 'key_len'. Returns the existing subfacet if
+ * there is one, otherwise creates and returns a new subfacet. */
+static struct subfacet *
+subfacet_create(struct ofproto_dpif *ofproto, struct facet *facet,
+ enum odp_key_fitness key_fitness,
+ const struct nlattr *key, size_t key_len)
{
- struct cls_rule *cls_rule;
- struct classifier *cls;
+ uint32_t key_hash = odp_flow_key_hash(key, key_len);
+ struct subfacet *subfacet;
- if (table_id >= N_TABLES) {
- return NULL;
+ subfacet = subfacet_find__(ofproto, key, key_len, key_hash, &facet->flow);
+ if (subfacet) {
+ if (subfacet->facet == facet) {
+ return subfacet;
+ }
+
+ /* This shouldn't happen. */
+ VLOG_ERR_RL(&rl, "subfacet with wrong facet");
+ subfacet_destroy(ofproto, subfacet);
}
- cls = &ofproto->up.tables[table_id];
- if (flow->nw_frag & FLOW_NW_FRAG_ANY
- && ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
- /* For OFPC_NORMAL frag_handling, we must pretend that transport ports
- * are unavailable. */
- struct flow ofpc_normal_flow = *flow;
- ofpc_normal_flow.tp_src = htons(0);
- ofpc_normal_flow.tp_dst = htons(0);
- cls_rule = classifier_lookup(cls, &ofpc_normal_flow);
- } else {
- cls_rule = classifier_lookup(cls, flow);
+ subfacet = xzalloc(sizeof *subfacet);
+ hmap_insert(&ofproto->subfacets, &subfacet->hmap_node, key_hash);
+ list_push_back(&facet->subfacets, &subfacet->list_node);
+ subfacet->facet = facet;
+ subfacet->used = time_msec();
+ subfacet->key_fitness = key_fitness;
+ if (key_fitness != ODP_FIT_PERFECT) {
+ subfacet->key = xmemdup(key, key_len);
+ subfacet->key_len = key_len;
}
- return rule_dpif_cast(rule_from_cls_rule(cls_rule));
+ subfacet->installed = false;
+
+ return subfacet;
}
-static void
-complete_operation(struct rule_dpif *rule)
+/* Searches 'ofproto' for a subfacet with the given 'key', 'key_len', and
+ * 'flow'. Returns the subfacet if one exists, otherwise NULL. */
+static struct subfacet *
+subfacet_find(struct ofproto_dpif *ofproto,
+ const struct nlattr *key, size_t key_len,
+ const struct flow *flow)
{
- struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
+ uint32_t key_hash = odp_flow_key_hash(key, key_len);
- rule_invalidate(rule);
- if (clogged) {
- struct dpif_completion *c = xmalloc(sizeof *c);
+ return subfacet_find__(ofproto, key, key_len, key_hash, flow);
+}
+
+/* Uninstalls 'subfacet' from the datapath, if it is installed, removes it from
+ * its facet within 'ofproto', and frees it. */
+static void
+subfacet_destroy__(struct ofproto_dpif *ofproto, struct subfacet *subfacet)
+{
+ subfacet_uninstall(ofproto, subfacet);
+ hmap_remove(&ofproto->subfacets, &subfacet->hmap_node);
+ list_remove(&subfacet->list_node);
+ free(subfacet->key);
+ free(subfacet);
+}
+
+/* Destroys 'subfacet', as with subfacet_destroy__(), and then if this was the
+ * last remaining subfacet in its facet destroys the facet too. */
+static void
+subfacet_destroy(struct ofproto_dpif *ofproto, struct subfacet *subfacet)
+{
+ struct facet *facet = subfacet->facet;
+
+ subfacet_destroy__(ofproto, subfacet);
+ if (list_is_empty(&facet->subfacets)) {
+ facet_remove(ofproto, facet);
+ }
+}
+
+/* Initializes 'key' with the sequence of OVS_KEY_ATTR_* Netlink attributes
+ * that can be used to refer to 'subfacet'. The caller must provide 'keybuf'
+ * for use as temporary storage. */
+static void
+subfacet_get_key(struct subfacet *subfacet, struct odputil_keybuf *keybuf,
+ struct ofpbuf *key)
+{
+ if (!subfacet->key) {
+ ofpbuf_use_stack(key, keybuf, sizeof *keybuf);
+ odp_flow_key_from_flow(key, &subfacet->facet->flow);
+ } else {
+ ofpbuf_use_const(key, subfacet->key, subfacet->key_len);
+ }
+}
+
+/* Updates 'subfacet''s datapath flow, setting its actions to 'actions_len'
+ * bytes of actions in 'actions'. If 'stats' is non-null, statistics counters
+ * in the datapath will be zeroed and 'stats' will be updated with traffic new
+ * since 'subfacet' was last updated.
+ *
+ * Returns 0 if successful, otherwise a positive errno value. */
+static int
+subfacet_install(struct ofproto_dpif *ofproto, struct subfacet *subfacet,
+ const struct nlattr *actions, size_t actions_len,
+ struct dpif_flow_stats *stats)
+{
+ struct odputil_keybuf keybuf;
+ enum dpif_flow_put_flags flags;
+ struct ofpbuf key;
+ int ret;
+
+ flags = DPIF_FP_CREATE | DPIF_FP_MODIFY;
+ if (stats) {
+ flags |= DPIF_FP_ZERO_STATS;
+ }
+
+ subfacet_get_key(subfacet, &keybuf, &key);
+ ret = dpif_flow_put(ofproto->dpif, flags, key.data, key.size,
+ actions, actions_len, stats);
+
+ if (stats) {
+ subfacet_reset_dp_stats(subfacet, stats);
+ }
+
+ return ret;
+}
+
+/* If 'subfacet' is installed in the datapath, uninstalls it. */
+static void
+subfacet_uninstall(struct ofproto_dpif *p, struct subfacet *subfacet)
+{
+ if (subfacet->installed) {
+ struct odputil_keybuf keybuf;
+ struct dpif_flow_stats stats;
+ struct ofpbuf key;
+ int error;
+
+ subfacet_get_key(subfacet, &keybuf, &key);
+ error = dpif_flow_del(p->dpif, key.data, key.size, &stats);
+ subfacet_reset_dp_stats(subfacet, &stats);
+ if (!error) {
+ subfacet_update_stats(p, subfacet, &stats);
+ }
+ subfacet->installed = false;
+ } else {
+ assert(subfacet->dp_packet_count == 0);
+ assert(subfacet->dp_byte_count == 0);
+ }
+}
+
+/* Resets 'subfacet''s datapath statistics counters. This should be called
+ * when 'subfacet''s statistics are cleared in the datapath. If 'stats' is
+ * non-null, it should contain the statistics returned by dpif when 'subfacet'
+ * was reset in the datapath. 'stats' will be modified to include only
+ * statistics new since 'subfacet' was last updated. */
+static void
+subfacet_reset_dp_stats(struct subfacet *subfacet,
+ struct dpif_flow_stats *stats)
+{
+ if (stats
+ && subfacet->dp_packet_count <= stats->n_packets
+ && subfacet->dp_byte_count <= stats->n_bytes) {
+ stats->n_packets -= subfacet->dp_packet_count;
+ stats->n_bytes -= subfacet->dp_byte_count;
+ }
+
+ subfacet->dp_packet_count = 0;
+ subfacet->dp_byte_count = 0;
+}
+
+/* Updates 'subfacet''s used time. The caller is responsible for calling
+ * facet_push_stats() to update the flows which 'subfacet' resubmits into. */
+static void
+subfacet_update_time(struct ofproto_dpif *ofproto, struct subfacet *subfacet,
+ long long int used)
+{
+ if (used > subfacet->used) {
+ subfacet->used = used;
+ facet_update_time(ofproto, subfacet->facet, used);
+ }
+}
+
+/* Folds the statistics from 'stats' into the counters in 'subfacet'.
+ *
+ * Because of the meaning of a subfacet's counters, it only makes sense to do
+ * this if 'stats' are not tracked in the datapath, that is, if 'stats'
+ * represents a packet that was sent by hand or if it represents statistics
+ * that have been cleared out of the datapath. */
+static void
+subfacet_update_stats(struct ofproto_dpif *ofproto, struct subfacet *subfacet,
+ const struct dpif_flow_stats *stats)
+{
+ if (stats->n_packets || stats->used > subfacet->used) {
+ struct facet *facet = subfacet->facet;
+
+ subfacet_update_time(ofproto, subfacet, stats->used);
+ facet->packet_count += stats->n_packets;
+ facet->byte_count += stats->n_bytes;
+ facet_push_stats(facet);
+ netflow_flow_update_flags(&facet->nf_flow, stats->tcp_flags);
+ }
+}
+\f
+/* Rules. */
+
+static struct rule_dpif *
+rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow,
+ uint8_t table_id)
+{
+ struct cls_rule *cls_rule;
+ struct classifier *cls;
+
+ if (table_id >= N_TABLES) {
+ return NULL;
+ }
+
+ cls = &ofproto->up.tables[table_id];
+ if (flow->nw_frag & FLOW_NW_FRAG_ANY
+ && ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
+ /* For OFPC_NORMAL frag_handling, we must pretend that transport ports
+ * are unavailable. */
+ struct flow ofpc_normal_flow = *flow;
+ ofpc_normal_flow.tp_src = htons(0);
+ ofpc_normal_flow.tp_dst = htons(0);
+ cls_rule = classifier_lookup(cls, &ofpc_normal_flow);
+ } else {
+ cls_rule = classifier_lookup(cls, flow);
+ }
+ return rule_dpif_cast(rule_from_cls_rule(cls_rule));
+}
+
+static void
+complete_operation(struct rule_dpif *rule)
+{
+ struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
+
+ rule_invalidate(rule);
+ if (clogged) {
+ struct dpif_completion *c = xmalloc(sizeof *c);
c->op = rule->up.pending;
list_push_back(&ofproto->completions, &c->list_node);
} else {
}
static int
-rule_execute(struct rule *rule_, struct flow *flow, struct ofpbuf *packet)
+rule_execute(struct rule *rule_, const struct flow *flow,
+ struct ofpbuf *packet)
{
struct rule_dpif *rule = rule_dpif_cast(rule_);
struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
struct action_xlate_ctx ctx;
struct ofpbuf *odp_actions;
- struct facet *facet;
size_t size;
- /* First look for a related facet. If we find one, account it to that. */
- facet = facet_lookup_valid(ofproto, flow);
- if (facet && facet->rule == rule) {
- if (!facet->may_install) {
- facet_make_actions(ofproto, facet, packet);
- }
- facet_execute(ofproto, facet, packet);
- return 0;
- }
-
- /* Otherwise, if 'rule' is in fact the correct rule for 'packet', then
- * create a new facet for it and use that. */
- if (rule_dpif_lookup(ofproto, flow, 0) == rule) {
- facet = facet_create(rule, flow);
- facet_make_actions(ofproto, facet, packet);
- facet_execute(ofproto, facet, packet);
- facet_install(ofproto, facet, true);
- return 0;
- }
-
- /* We can't account anything to a facet. If we were to try, then that
- * facet would have a non-matching rule, busting our invariants. */
action_xlate_ctx_init(&ctx, ofproto, flow, packet);
odp_actions = xlate_actions(&ctx, rule->up.actions, rule->up.n_actions);
size = packet->size;
const struct flow *flow,
const struct user_action_cookie *cookie)
{
- size_t offset;
uint32_t pid;
pid = dpif_port_get_pid(ofproto->dpif,
ofp_port_to_odp_port(flow->in_port));
- offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_USERSPACE);
- nl_msg_put_u32(odp_actions, OVS_USERSPACE_ATTR_PID, pid);
- nl_msg_put_unspec(odp_actions, OVS_USERSPACE_ATTR_USERDATA,
- cookie, sizeof *cookie);
- nl_msg_end_nested(odp_actions, offset);
-
- return odp_actions->size - NLA_ALIGN(sizeof *cookie);
+ return odp_put_userspace_action(pid, cookie, odp_actions);
}
/* Compose SAMPLE action for sFlow. */
}
static void
-commit_vlan_action(struct action_xlate_ctx *ctx, ovs_be16 new_tci)
+commit_vlan_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
{
- struct flow *base = &ctx->base_flow;
-
- if (base->vlan_tci == new_tci) {
+ if (base->vlan_tci == flow->vlan_tci) {
return;
}
if (base->vlan_tci & htons(VLAN_CFI)) {
- nl_msg_put_flag(ctx->odp_actions, OVS_ACTION_ATTR_POP_VLAN);
+ nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
}
- if (new_tci & htons(VLAN_CFI)) {
+ if (flow->vlan_tci & htons(VLAN_CFI)) {
struct ovs_action_push_vlan vlan;
vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
- vlan.vlan_tci = new_tci;
- nl_msg_put_unspec(ctx->odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
+ vlan.vlan_tci = flow->vlan_tci;
+ nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
&vlan, sizeof vlan);
}
- base->vlan_tci = new_tci;
+ base->vlan_tci = flow->vlan_tci;
}
static void
ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
+ ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
+ ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
ipv4_key.ipv4_proto = base->nw_proto;
- ipv4_key.ipv4_tos = flow->nw_tos;
- ipv4_key.ipv4_ttl = flow->nw_ttl;
ipv4_key.ipv4_frag = (base->nw_frag == 0 ? OVS_FRAG_TYPE_NONE
: base->nw_frag == FLOW_NW_FRAG_ANY
? OVS_FRAG_TYPE_FIRST : OVS_FRAG_TYPE_LATER);
commit_set_tun_id_action(flow, base, odp_actions);
commit_set_ether_addr_action(flow, base, odp_actions);
- commit_vlan_action(ctx, flow->vlan_tci);
+ commit_vlan_action(flow, base, odp_actions);
commit_set_nw_action(flow, base, odp_actions);
commit_set_port_action(flow, base, odp_actions);
commit_set_priority_action(flow, base, odp_actions);
}
static void
-compose_output_action(struct action_xlate_ctx *ctx, uint16_t odp_port)
-{
- nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_OUTPUT, odp_port);
- ctx->sflow_odp_port = odp_port;
- ctx->sflow_n_outputs++;
-}
-
-static void
-add_output_action(struct action_xlate_ctx *ctx, uint16_t ofp_port)
+compose_output_action__(struct action_xlate_ctx *ctx, uint16_t ofp_port,
+ bool check_stp)
{
const struct ofport_dpif *ofport = get_ofp_port(ctx->ofproto, ofp_port);
uint16_t odp_port = ofp_port_to_odp_port(ofp_port);
+ uint8_t flow_nw_tos = ctx->flow.nw_tos;
if (ofport) {
+ struct priority_to_dscp *pdscp;
+
if (ofport->up.opp.config & htonl(OFPPC_NO_FWD)
- || !stp_forward_in_state(ofport->stp_state)) {
- /* Forwarding disabled on port. */
+ || (check_stp && !stp_forward_in_state(ofport->stp_state))) {
return;
}
+
+ pdscp = get_priority(ofport, ctx->flow.priority);
+ if (pdscp) {
+ ctx->flow.nw_tos &= ~IP_DSCP_MASK;
+ ctx->flow.nw_tos |= pdscp->dscp;
+ }
} else {
- /*
- * We don't have an ofport record for this port, but it doesn't hurt to
- * allow forwarding to it anyhow. Maybe such a port will appear later
- * and we're pre-populating the flow table.
- */
+ /* We may not have an ofport record for this port, but it doesn't hurt
+ * to allow forwarding to it anyhow. Maybe such a port will appear
+ * later and we're pre-populating the flow table. */
}
commit_odp_actions(ctx);
- compose_output_action(ctx, odp_port);
+ nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_OUTPUT, odp_port);
+ ctx->sflow_odp_port = odp_port;
+ ctx->sflow_n_outputs++;
ctx->nf_output_iface = ofp_port;
+ ctx->flow.nw_tos = flow_nw_tos;
+}
+
+static void
+compose_output_action(struct action_xlate_ctx *ctx, uint16_t ofp_port)
+{
+ compose_output_action__(ctx, ofp_port, true);
}
static void
}
static void
-flood_packets(struct action_xlate_ctx *ctx, ovs_be32 mask)
+flood_packets(struct action_xlate_ctx *ctx, bool all)
{
struct ofport_dpif *ofport;
commit_odp_actions(ctx);
HMAP_FOR_EACH (ofport, up.hmap_node, &ctx->ofproto->up.ports) {
uint16_t ofp_port = ofport->up.ofp_port;
- if (ofp_port != ctx->flow.in_port
- && !(ofport->up.opp.config & mask)
- && stp_forward_in_state(ofport->stp_state)) {
- compose_output_action(ctx, ofport->odp_port);
+
+ if (ofp_port == ctx->flow.in_port) {
+ continue;
+ }
+
+ if (all) {
+ compose_output_action__(ctx, ofp_port, false);
+ } else if (!(ofport->up.opp.config & htonl(OFPPC_NO_FLOOD))) {
+ compose_output_action(ctx, ofp_port);
}
}
{
struct user_action_cookie cookie;
+ commit_odp_actions(ctx);
cookie.type = USER_ACTION_COOKIE_CONTROLLER;
cookie.data = len;
cookie.n_output = 0;
switch (port) {
case OFPP_IN_PORT:
- add_output_action(ctx, ctx->flow.in_port);
+ compose_output_action(ctx, ctx->flow.in_port);
break;
case OFPP_TABLE:
xlate_table_action(ctx, ctx->flow.in_port, ctx->table_id);
xlate_normal(ctx);
break;
case OFPP_FLOOD:
- flood_packets(ctx, htonl(OFPPC_NO_FLOOD));
+ flood_packets(ctx, false);
break;
case OFPP_ALL:
- flood_packets(ctx, htonl(0));
+ flood_packets(ctx, true);
break;
case OFPP_CONTROLLER:
- commit_odp_actions(ctx);
compose_controller_action(ctx, max_len);
break;
case OFPP_LOCAL:
- add_output_action(ctx, OFPP_LOCAL);
+ compose_output_action(ctx, OFPP_LOCAL);
break;
case OFPP_NONE:
break;
default:
if (port != ctx->flow.in_port) {
- add_output_action(ctx, port);
+ compose_output_action(ctx, port);
}
break;
}
xlate_enqueue_action(struct action_xlate_ctx *ctx,
const struct ofp_action_enqueue *oae)
{
- uint16_t ofp_port, odp_port;
+ uint16_t ofp_port;
uint32_t flow_priority, priority;
int error;
} else if (ofp_port == ctx->flow.in_port) {
return;
}
- odp_port = ofp_port_to_odp_port(ofp_port);
/* Add datapath actions. */
flow_priority = ctx->flow.priority;
ctx->flow.priority = priority;
- add_output_action(ctx, odp_port);
+ compose_output_action(ctx, ofp_port);
ctx->flow.priority = flow_priority;
/* Update NetFlow output port. */
if (ctx->nf_output_iface == NF_OUT_DROP) {
- ctx->nf_output_iface = odp_port;
+ ctx->nf_output_iface = ofp_port;
} else if (ctx->nf_output_iface != NF_OUT_FLOOD) {
ctx->nf_output_iface = NF_OUT_MULTI;
}
if (ctx->packet
&& connmgr_msg_in_hook(ctx->ofproto->up.connmgr, &ctx->flow,
ctx->packet)) {
- compose_output_action(ctx, OVSP_LOCAL);
+ compose_output_action(ctx, OFPP_LOCAL);
}
}
fix_sflow_action(ctx);
\f
/* OFPP_NORMAL implementation. */
-struct dst {
- struct ofport_dpif *port;
- uint16_t vid;
-};
-
-struct dst_set {
- struct dst builtin[32];
- struct dst *dsts;
- size_t n, allocated;
-};
-
-static void dst_set_init(struct dst_set *);
-static void dst_set_add(struct dst_set *, const struct dst *);
-static void dst_set_free(struct dst_set *);
-
static struct ofport_dpif *ofbundle_get_a_port(const struct ofbundle *);
/* Given 'vid', the VID obtained from the 802.1Q header that was received as
}
}
-static bool
-set_dst(struct action_xlate_ctx *ctx, struct dst *dst,
- const struct ofbundle *in_bundle, const struct ofbundle *out_bundle)
+static void
+output_normal(struct action_xlate_ctx *ctx, const struct ofbundle *out_bundle,
+ uint16_t vlan)
{
- uint16_t vlan;
+ struct ofport_dpif *port;
+ uint16_t vid;
+ ovs_be16 tci, old_tci;
- vlan = input_vid_to_vlan(in_bundle, vlan_tci_to_vid(ctx->flow.vlan_tci));
- dst->vid = output_vlan_to_vid(out_bundle, vlan);
+ vid = output_vlan_to_vid(out_bundle, vlan);
+ if (!out_bundle->bond) {
+ port = ofbundle_get_a_port(out_bundle);
+ } else {
+ port = bond_choose_output_slave(out_bundle->bond, &ctx->flow,
+ vid, &ctx->tags);
+ if (!port) {
+ /* No slaves enabled, so drop packet. */
+ return;
+ }
+ }
+
+ old_tci = ctx->flow.vlan_tci;
+ tci = htons(vid);
+ if (tci || out_bundle->use_priority_tags) {
+ tci |= ctx->flow.vlan_tci & htons(VLAN_PCP_MASK);
+ if (tci) {
+ tci |= htons(VLAN_CFI);
+ }
+ }
+ ctx->flow.vlan_tci = tci;
- dst->port = (!out_bundle->bond
- ? ofbundle_get_a_port(out_bundle)
- : bond_choose_output_slave(out_bundle->bond, &ctx->flow,
- dst->vid, &ctx->tags));
- return dst->port != NULL;
+ compose_output_action(ctx, port->up.ofp_port);
+ ctx->flow.vlan_tci = old_tci;
}
static int
return ffs(mask);
}
-static void
-dst_set_init(struct dst_set *set)
-{
- set->dsts = set->builtin;
- set->n = 0;
- set->allocated = ARRAY_SIZE(set->builtin);
-}
-
-static void
-dst_set_add(struct dst_set *set, const struct dst *dst)
-{
- if (set->n >= set->allocated) {
- size_t new_allocated;
- struct dst *new_dsts;
-
- new_allocated = set->allocated * 2;
- new_dsts = xmalloc(new_allocated * sizeof *new_dsts);
- memcpy(new_dsts, set->dsts, set->n * sizeof *new_dsts);
-
- dst_set_free(set);
-
- set->dsts = new_dsts;
- set->allocated = new_allocated;
- }
- set->dsts[set->n++] = *dst;
-}
-
-static void
-dst_set_free(struct dst_set *set)
-{
- if (set->dsts != set->builtin) {
- free(set->dsts);
- }
-}
-
static bool
ofbundle_trunks_vlan(const struct ofbundle *bundle, uint16_t vlan)
{
struct ofport_dpif, bundle_node);
}
-static void
+static mirror_mask_t
compose_dsts(struct action_xlate_ctx *ctx, uint16_t vlan,
const struct ofbundle *in_bundle,
- const struct ofbundle *out_bundle, struct dst_set *set)
+ const struct ofbundle *out_bundle)
{
- struct dst dst;
+ mirror_mask_t dst_mirrors = 0;
if (out_bundle == OFBUNDLE_FLOOD) {
struct ofbundle *bundle;
if (bundle != in_bundle
&& ofbundle_includes_vlan(bundle, vlan)
&& bundle->floodable
- && !bundle->mirror_out
- && set_dst(ctx, &dst, in_bundle, bundle)) {
- dst_set_add(set, &dst);
+ && !bundle->mirror_out) {
+ output_normal(ctx, bundle, vlan);
+ dst_mirrors |= bundle->dst_mirrors;
}
}
ctx->nf_output_iface = NF_OUT_FLOOD;
- } else if (out_bundle && set_dst(ctx, &dst, in_bundle, out_bundle)) {
- dst_set_add(set, &dst);
- ctx->nf_output_iface = dst.port->odp_port;
+ } else if (out_bundle) {
+ output_normal(ctx, out_bundle, vlan);
+ dst_mirrors = out_bundle->dst_mirrors;
}
+
+ return dst_mirrors;
}
static bool
}
static void
-compose_mirror_dsts(struct action_xlate_ctx *ctx,
- uint16_t vlan, const struct ofbundle *in_bundle,
- struct dst_set *set)
+output_mirrors(struct action_xlate_ctx *ctx,
+ uint16_t vlan, const struct ofbundle *in_bundle,
+ mirror_mask_t dst_mirrors)
{
struct ofproto_dpif *ofproto = ctx->ofproto;
mirror_mask_t mirrors;
- uint16_t flow_vid;
- size_t i;
-
- mirrors = in_bundle->src_mirrors;
- for (i = 0; i < set->n; i++) {
- mirrors |= set->dsts[i].port->bundle->dst_mirrors;
- }
+ mirrors = in_bundle->src_mirrors | dst_mirrors;
if (!mirrors) {
return;
}
- flow_vid = vlan_tci_to_vid(ctx->flow.vlan_tci);
while (mirrors) {
struct ofmirror *m;
- struct dst dst;
m = ofproto->mirrors[mirror_mask_ffs(mirrors) - 1];
mirrors &= ~m->dup_mirrors;
if (m->out) {
- if (set_dst(ctx, &dst, in_bundle, m->out)) {
- dst_set_add(set, &dst);
- }
+ output_normal(ctx, m->out, vlan);
} else if (eth_dst_may_rspan(ctx->flow.dl_dst)
&& vlan != m->out_vlan) {
struct ofbundle *bundle;
HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
if (ofbundle_includes_vlan(bundle, m->out_vlan)
- && !bundle->mirror_out
- && set_dst(ctx, &dst, in_bundle, bundle))
- {
- /* set_dst() got dst->vid from the input packet's VLAN,
- * not from m->out_vlan, so recompute it. */
- dst.vid = output_vlan_to_vid(bundle, m->out_vlan);
-
- if (bundle == in_bundle && dst.vid == flow_vid) {
- /* Don't send out input port on same VLAN. */
- continue;
- }
- dst_set_add(set, &dst);
+ && !bundle->mirror_out) {
+ output_normal(ctx, bundle, m->out_vlan);
}
}
}
}
}
-static void
-compose_actions(struct action_xlate_ctx *ctx, uint16_t vlan,
- const struct ofbundle *in_bundle,
- const struct ofbundle *out_bundle)
-{
- uint16_t initial_vid, cur_vid;
- const struct dst *dst;
- struct dst_set set;
-
- dst_set_init(&set);
- compose_dsts(ctx, vlan, in_bundle, out_bundle, &set);
- compose_mirror_dsts(ctx, vlan, in_bundle, &set);
- if (!set.n) {
- dst_set_free(&set);
- return;
- }
-
- /* Output all the packets we can without having to change the VLAN. */
- commit_odp_actions(ctx);
- initial_vid = vlan_tci_to_vid(ctx->flow.vlan_tci);
- for (dst = set.dsts; dst < &set.dsts[set.n]; dst++) {
- if (dst->vid != initial_vid) {
- continue;
- }
- compose_output_action(ctx, dst->port->odp_port);
- }
-
- /* Then output the rest. */
- cur_vid = initial_vid;
- for (dst = set.dsts; dst < &set.dsts[set.n]; dst++) {
- if (dst->vid == initial_vid) {
- continue;
- }
- if (dst->vid != cur_vid) {
- ovs_be16 tci;
-
- tci = htons(dst->vid);
- tci |= ctx->flow.vlan_tci & htons(VLAN_PCP_MASK);
- if (tci) {
- tci |= htons(VLAN_CFI);
- }
- commit_vlan_action(ctx, tci);
-
- cur_vid = dst->vid;
- }
- compose_output_action(ctx, dst->port->odp_port);
- }
-
- dst_set_free(&set);
-}
-
/* A VM broadcasts a gratuitous ARP to indicate that it has resumed after
* migration. Older Citrix-patched Linux DomU used gratuitous ARP replies to
* indicate this; newer upstream kernels use gratuitous ARP requests. */
}
}
+static struct ofport_dpif *
+lookup_input_bundle(struct ofproto_dpif *ofproto, uint16_t in_port, bool warn)
+{
+ struct ofport_dpif *ofport;
+
+ /* Find the port and bundle for the received packet. */
+ ofport = get_ofp_port(ofproto, in_port);
+ if (ofport && ofport->bundle) {
+ return ofport;
+ }
+
+ /* Odd. A few possible reasons here:
+ *
+ * - We deleted a port but there are still a few packets queued up
+ * from it.
+ *
+ * - Someone externally added a port (e.g. "ovs-dpctl add-if") that
+ * we don't know about.
+ *
+ * - The ofproto client didn't configure the port as part of a bundle.
+ */
+ if (warn) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+
+ VLOG_WARN_RL(&rl, "bridge %s: received packet on unknown "
+ "port %"PRIu16, ofproto->up.name, in_port);
+ }
+ return NULL;
+}
+
/* Determines whether packets in 'flow' within 'ofproto' should be forwarded or
* dropped. Returns true if they may be forwarded, false if they should be
* dropped.
*
- * If 'have_packet' is true, it indicates that the caller is processing a
- * received packet. If 'have_packet' is false, then the caller is just
- * revalidating an existing flow because configuration has changed. Either
- * way, 'have_packet' only affects logging (there is no point in logging errors
- * during revalidation).
- *
- * Sets '*in_bundlep' to the input bundle. This will be a null pointer if
- * flow->in_port does not designate a known input port (in which case
- * is_admissible() returns false).
+ * 'in_port' must be the ofport_dpif that corresponds to flow->in_port.
+ * 'in_port' must be part of a bundle (e.g. in_port->bundle must be nonnull).
*
- * When returning true, sets '*vlanp' to the effective VLAN of the input
- * packet, as returned by input_vid_to_vlan().
+ * 'vlan' must be the VLAN that corresponds to flow->vlan_tci on 'in_port', as
+ * returned by input_vid_to_vlan(). It must be a valid VLAN for 'in_port', as
+ * checked by input_vid_is_valid().
*
* May also add tags to '*tags', although the current implementation only does
* so in one special case.
*/
static bool
is_admissible(struct ofproto_dpif *ofproto, const struct flow *flow,
- bool have_packet,
- tag_type *tags, int *vlanp, struct ofbundle **in_bundlep)
+ struct ofport_dpif *in_port, uint16_t vlan, tag_type *tags)
{
- struct ofport_dpif *in_port;
- struct ofbundle *in_bundle;
- uint16_t vid;
- int vlan;
-
- *vlanp = -1;
+ struct ofbundle *in_bundle = in_port->bundle;
- /* Find the port and bundle for the received packet. */
- in_port = get_ofp_port(ofproto, flow->in_port);
- *in_bundlep = in_bundle = in_port ? in_port->bundle : NULL;
- if (!in_port || !in_bundle) {
- /* No interface? Something fishy... */
- if (have_packet) {
- /* Odd. A few possible reasons here:
- *
- * - We deleted a port but there are still a few packets queued up
- * from it.
- *
- * - Someone externally added a port (e.g. "ovs-dpctl add-if") that
- * we don't know about.
- *
- * - Packet arrived on the local port but the local port is not
- * part of a bundle.
- */
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
-
- VLOG_WARN_RL(&rl, "bridge %s: received packet on unknown "
- "port %"PRIu16,
- ofproto->up.name, flow->in_port);
- }
- return false;
- }
-
- if (flow->dl_type == htons(ETH_TYPE_VLAN) &&
- !(flow->vlan_tci & htons(VLAN_CFI))) {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_WARN_RL(&rl, "bridge %s: dropping packet with partial "
- "VLAN tag received on port %s",
- ofproto->up.name, in_bundle->name);
- return -1;
- }
-
- vid = vlan_tci_to_vid(flow->vlan_tci);
- if (!input_vid_is_valid(vid, in_bundle, have_packet)) {
- return false;
- }
- *vlanp = vlan = input_vid_to_vlan(in_bundle, vid);
-
- /* Drop frames for reserved multicast addresses only if forward_bpdu
- * option is absent. */
+ /* Drop frames for reserved multicast addresses
+ * only if forward_bpdu option is absent. */
if (eth_addr_is_reserved(flow->dl_dst) && !ofproto->up.forward_bpdu) {
return false;
}
- /* Drop frames on bundles reserved for mirroring. */
- if (in_bundle->mirror_out) {
- if (have_packet) {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port "
- "%s, which is reserved exclusively for mirroring",
- ofproto->up.name, in_bundle->name);
- }
- return false;
- }
-
if (in_bundle->bond) {
struct mac_entry *mac;
static void
xlate_normal(struct action_xlate_ctx *ctx)
{
+ mirror_mask_t dst_mirrors = 0;
+ struct ofport_dpif *in_port;
struct ofbundle *in_bundle;
struct ofbundle *out_bundle;
struct mac_entry *mac;
- int vlan;
+ uint16_t vlan;
+ uint16_t vid;
ctx->has_normal = true;
- /* Check whether we should drop packets in this flow. */
- if (!is_admissible(ctx->ofproto, &ctx->flow, ctx->packet != NULL,
- &ctx->tags, &vlan, &in_bundle)) {
- out_bundle = NULL;
- goto done;
+ /* Obtain in_port from ctx->flow.in_port.
+ *
+ * lookup_input_bundle() also ensures that in_port belongs to a bundle. */
+ in_port = lookup_input_bundle(ctx->ofproto, ctx->flow.in_port,
+ ctx->packet != NULL);
+ if (!in_port) {
+ return;
+ }
+ in_bundle = in_port->bundle;
+
+ /* Drop malformed frames. */
+ if (ctx->flow.dl_type == htons(ETH_TYPE_VLAN) &&
+ !(ctx->flow.vlan_tci & htons(VLAN_CFI))) {
+ if (ctx->packet != NULL) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+ VLOG_WARN_RL(&rl, "bridge %s: dropping packet with partial "
+ "VLAN tag received on port %s",
+ ctx->ofproto->up.name, in_bundle->name);
+ }
+ return;
+ }
+
+ /* Drop frames on bundles reserved for mirroring. */
+ if (in_bundle->mirror_out) {
+ if (ctx->packet != NULL) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+ VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port "
+ "%s, which is reserved exclusively for mirroring",
+ ctx->ofproto->up.name, in_bundle->name);
+ }
+ return;
+ }
+
+ /* Check VLAN. */
+ vid = vlan_tci_to_vid(ctx->flow.vlan_tci);
+ if (!input_vid_is_valid(vid, in_bundle, ctx->packet != NULL)) {
+ return;
+ }
+ vlan = input_vid_to_vlan(in_bundle, vid);
+
+ /* Check other admissibility requirements. */
+ if (!is_admissible(ctx->ofproto, &ctx->flow, in_port, vlan, &ctx->tags)) {
+ output_mirrors(ctx, vlan, in_bundle, 0);
+ return;
}
/* Learn source MAC. */
}
/* Don't send packets out their input bundles. */
- if (in_bundle == out_bundle) {
- out_bundle = NULL;
- }
-
-done:
- if (in_bundle) {
- compose_actions(ctx, vlan, in_bundle, out_bundle);
+ if (in_bundle != out_bundle) {
+ dst_mirrors = compose_dsts(ctx, vlan, in_bundle, out_bundle);
}
+ output_mirrors(ctx, vlan, in_bundle, dst_mirrors);
}
\f
/* Optimized flow revalidation.
}
return error;
}
+\f
+/* NetFlow. */
+
+static int
+set_netflow(struct ofproto *ofproto_,
+ const struct netflow_options *netflow_options)
+{
+ struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+
+ if (netflow_options) {
+ if (!ofproto->netflow) {
+ ofproto->netflow = netflow_create();
+ }
+ return netflow_set_options(ofproto->netflow, netflow_options);
+ } else {
+ netflow_destroy(ofproto->netflow);
+ ofproto->netflow = NULL;
+ return 0;
+ }
+}
static void
get_netflow_ids(const struct ofproto *ofproto_,
dpif_get_netflow_ids(ofproto->dpif, engine_type, engine_id);
}
+
+static void
+send_active_timeout(struct ofproto_dpif *ofproto, struct facet *facet)
+{
+ if (!facet_is_controller_flow(facet) &&
+ netflow_active_timeout_expired(ofproto->netflow, &facet->nf_flow)) {
+ struct subfacet *subfacet;
+ struct ofexpired expired;
+
+ LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) {
+ if (subfacet->installed) {
+ struct dpif_flow_stats stats;
+
+ subfacet_install(ofproto, subfacet, facet->actions,
+ facet->actions_len, &stats);
+ subfacet_update_stats(ofproto, subfacet, &stats);
+ }
+ }
+
+ expired.flow = facet->flow;
+ expired.packet_count = facet->packet_count;
+ expired.byte_count = facet->byte_count;
+ expired.used = facet->used;
+ netflow_expire(ofproto->netflow, &facet->nf_flow, &expired);
+ }
+}
+
+static void
+send_netflow_active_timeouts(struct ofproto_dpif *ofproto)
+{
+ struct facet *facet;
+
+ HMAP_FOR_EACH (facet, hmap_node, &ofproto->facets) {
+ send_active_timeout(ofproto, facet);
+ }
+}
\f
static struct ofproto_dpif *
ofproto_dpif_lookup(const char *name)
/* Convert string to datapath key. */
ofpbuf_init(&odp_key, 0);
- error = odp_flow_key_from_string(arg1, &odp_key);
+ error = odp_flow_key_from_string(arg1, NULL, &odp_key);
if (error) {
unixctl_command_reply(conn, 501, "Bad flow syntax");
goto exit;
unixctl_command_register("fdb/flush", "bridge", ofproto_unixctl_fdb_flush,
NULL);
unixctl_command_register("fdb/show", "bridge", ofproto_unixctl_fdb_show,
- NULL);
+ NULL);
unixctl_command_register("ofproto/clog", "", ofproto_dpif_clog, NULL);
unixctl_command_register("ofproto/unclog", "", ofproto_dpif_unclog, NULL);
}
get_stp_status,
set_stp_port,
get_stp_port_status,
+ set_queues,
bundle_set,
bundle_remove,
mirror_set,
projects / cascardo / ovs.git / blobdiff