/*
- * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
* Copyright (c) 2010 Jean Tourrilhes - HP-Labs.
*
* Licensed under the Apache License, Version 2.0 (the "License");
#include "bitmap.h"
#include "byte-order.h"
#include "classifier.h"
+#include "connectivity.h"
#include "connmgr.h"
#include "coverage.h"
#include "dynamic-string.h"
#include "pktbuf.h"
#include "poll-loop.h"
#include "random.h"
+#include "seq.h"
#include "shash.h"
#include "simap.h"
#include "smap.h"
static bool choose_rule_to_evict(struct oftable *table, struct rule **rulep);
static void ofproto_evict(struct ofproto *) OVS_EXCLUDED(ofproto_mutex);
-static uint32_t rule_eviction_priority(struct rule *);
+static uint32_t rule_eviction_priority(struct ofproto *ofproto, struct rule *);
static void eviction_group_add_rule(struct rule *);
static void eviction_group_remove_rule(struct rule *);
/* Global lock that protects all flow table operations. */
struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER;
-unsigned flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT;
-unsigned n_handler_threads;
-enum ofproto_flow_miss_model flow_miss_model = OFPROTO_HANDLE_MISS_AUTO;
+unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT;
+
+size_t n_handlers, n_revalidators;
/* Map from datapath name to struct ofproto, for use by unixctl commands. */
static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos);
{
size_t i;
+ sset_clear(types);
for (i = 0; i < n_ofproto_classes; i++) {
ofproto_classes[i]->enumerate_types(types);
}
/* Sets the number of flows at which eviction from the kernel flow table
* will occur. */
void
-ofproto_set_flow_eviction_threshold(unsigned threshold)
-{
- flow_eviction_threshold = MAX(OFPROTO_FLOW_EVICTION_THRESHOLD_MIN,
- threshold);
-}
-
-/* Sets the path for handling flow misses. */
-void
-ofproto_set_flow_miss_model(unsigned model)
+ofproto_set_flow_limit(unsigned limit)
{
- flow_miss_model = model;
+ ofproto_flow_limit = limit;
}
/* If forward_bpdu is true, the NORMAL action will forward frames with
}
}
-/* Sets number of upcall handler threads. The default is
- * (number of online cores - 2). */
void
-ofproto_set_n_handler_threads(unsigned limit)
+ofproto_set_threads(int n_handlers_, int n_revalidators_)
{
- if (limit) {
- n_handler_threads = limit;
- } else {
- int n_proc = sysconf(_SC_NPROCESSORS_ONLN);
- n_handler_threads = n_proc > 2 ? n_proc - 2 : 1;
+ int threads = MAX(count_cpu_cores(), 2);
+
+ n_revalidators = MAX(n_revalidators_, 0);
+ n_handlers = MAX(n_handlers_, 0);
+
+ if (!n_revalidators) {
+ n_revalidators = n_handlers
+ ? MAX(threads - (int) n_handlers, 1)
+ : threads / 4 + 1;
+ }
+
+ if (!n_handlers) {
+ n_handlers = MAX(threads - (int) n_revalidators, 1);
}
}
? ofproto->ofproto_class->get_stp_port_status(ofport, s)
: EOPNOTSUPP);
}
+
+/* Retrieves STP port statistics of 'ofp_port' on 'ofproto' and stores it in
+ * 's'. If the 'enabled' member in 's' is false, then the other members
+ * are not meaningful.
+ *
+ * Returns 0 if successful, otherwise a positive errno value.*/
+int
+ofproto_port_get_stp_stats(struct ofproto *ofproto, ofp_port_t ofp_port,
+ struct ofproto_port_stp_stats *s)
+{
+ struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
+ if (!ofport) {
+ VLOG_WARN_RL(&rl, "%s: cannot get STP stats on nonexistent "
+ "port %"PRIu16, ofproto->name, ofp_port);
+ return ENODEV;
+ }
+
+ return (ofproto->ofproto_class->get_stp_port_stats
+ ? ofproto->ofproto_class->get_stp_port_stats(ofport, s)
+ : EOPNOTSUPP);
+}
\f
/* Queue DSCP configuration. */
}
table->max_flows = s->max_flows;
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_wrlock(&table->cls.rwlock);
if (classifier_count(&table->cls) > table->max_flows
&& table->eviction_fields) {
/* 'table' contains more flows than allowed. We might not be able to
break;
}
}
- ovs_rwlock_unlock(&table->cls.rwlock);
+
+ classifier_set_prefix_fields(&table->cls,
+ s->prefix_fields, s->n_prefix_fields);
+
+ fat_rwlock_unlock(&table->cls.rwlock);
}
\f
bool
ofopgroup_submit(group);
}
-/* Deletes 'rule' from 'cls' within 'ofproto'.
+/* Deletes 'rule' from 'ofproto'.
*
* Within an ofproto implementation, this function allows an ofproto
* implementation to destroy any rules that remain when its ->destruct()
continue;
}
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
cls_cursor_init(&cursor, &table->cls, NULL);
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, cr, &cursor) {
if (!rule->pending) {
ofproto_rule_delete__(ofproto, rule, OFPRR_DELETE);
return error;
}
-int
-ofproto_type_run_fast(const char *datapath_type)
-{
- const struct ofproto_class *class;
- int error;
-
- datapath_type = ofproto_normalize_type(datapath_type);
- class = ofproto_class_find__(datapath_type);
-
- error = class->type_run_fast ? class->type_run_fast(datapath_type) : 0;
- if (error && error != EAGAIN) {
- VLOG_ERR_RL(&rl, "%s: type_run_fast failed (%s)",
- datapath_type, ovs_strerror(error));
- }
- return error;
-}
-
void
ofproto_type_wait(const char *datapath_type)
{
int
ofproto_run(struct ofproto *p)
{
- struct sset changed_netdevs;
- const char *changed_netdev;
- struct ofport *ofport;
int error;
+ uint64_t new_seq;
error = p->ofproto_class->run(p);
if (error && error != EAGAIN) {
heap_rebuild(&evg->rules);
}
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
cls_cursor_init(&cursor, &table->cls, NULL);
CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
if (!rule->eviction_group
eviction_group_add_rule(rule);
}
}
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
ovs_mutex_unlock(&ofproto_mutex);
}
}
}
}
- /* Update OpenFlow port status for any port whose netdev has changed.
- *
- * Refreshing a given 'ofport' can cause an arbitrary ofport to be
- * destroyed, so it's not safe to update ports directly from the
- * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we
- * need this two-phase approach. */
- sset_init(&changed_netdevs);
- HMAP_FOR_EACH (ofport, hmap_node, &p->ports) {
- unsigned int change_seq = netdev_change_seq(ofport->netdev);
- if (ofport->change_seq != change_seq) {
- ofport->change_seq = change_seq;
- sset_add(&changed_netdevs, netdev_get_name(ofport->netdev));
+ new_seq = seq_read(connectivity_seq_get());
+ if (new_seq != p->change_seq) {
+ struct sset devnames;
+ const char *devname;
+ struct ofport *ofport;
+
+ /* Update OpenFlow port status for any port whose netdev has changed.
+ *
+ * Refreshing a given 'ofport' can cause an arbitrary ofport to be
+ * destroyed, so it's not safe to update ports directly from the
+ * HMAP_FOR_EACH loop, or even to use HMAP_FOR_EACH_SAFE. Instead, we
+ * need this two-phase approach. */
+ sset_init(&devnames);
+ HMAP_FOR_EACH (ofport, hmap_node, &p->ports) {
+ sset_add(&devnames, netdev_get_name(ofport->netdev));
}
+ SSET_FOR_EACH (devname, &devnames) {
+ update_port(p, devname);
+ }
+ sset_destroy(&devnames);
+
+ p->change_seq = new_seq;
}
- SSET_FOR_EACH (changed_netdev, &changed_netdevs) {
- update_port(p, changed_netdev);
- }
- sset_destroy(&changed_netdevs);
switch (p->state) {
case S_OPENFLOW:
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
if (time_msec() >= p->next_op_report) {
return error;
}
-/* Performs periodic activity required by 'ofproto' that needs to be done
- * with the least possible latency.
- *
- * It makes sense to call this function a couple of times per poll loop, to
- * provide a significant performance boost on some benchmarks with the
- * ofproto-dpif implementation. */
-int
-ofproto_run_fast(struct ofproto *p)
-{
- int error;
-
- error = p->ofproto_class->run_fast ? p->ofproto_class->run_fast(p) : 0;
- if (error && error != EAGAIN) {
- VLOG_ERR_RL(&rl, "%s: fastpath run failed (%s)",
- p->name, ovs_strerror(error));
- }
- return error;
-}
-
void
ofproto_wait(struct ofproto *p)
{
- struct ofport *ofport;
-
p->ofproto_class->wait(p);
if (p->ofproto_class->port_poll_wait) {
p->ofproto_class->port_poll_wait(p);
}
-
- HMAP_FOR_EACH (ofport, hmap_node, &p->ports) {
- if (ofport->change_seq != netdev_change_seq(ofport->netdev)) {
- poll_immediate_wake();
- }
- }
+ seq_wait(connectivity_seq_get(), p->change_seq);
switch (p->state) {
case S_OPENFLOW:
n_rules = 0;
OFPROTO_FOR_EACH_TABLE (table, ofproto) {
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
n_rules += classifier_count(&table->cls);
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
}
simap_increase(usage, "rules", n_rules);
connmgr_get_memory_usage(ofproto->connmgr, usage);
}
+void
+ofproto_type_get_memory_usage(const char *datapath_type, struct simap *usage)
+{
+ const struct ofproto_class *class;
+
+ datapath_type = ofproto_normalize_type(datapath_type);
+ class = ofproto_class_find__(datapath_type);
+
+ if (class && class->type_get_memory_usage) {
+ class->type_get_memory_usage(datapath_type, usage);
+ }
+}
+
void
ofproto_get_ofproto_controller_info(const struct ofproto *ofproto,
struct shash *info)
update_port(ofproto, netdev_name);
}
if (ofp_portp) {
- struct ofproto_port ofproto_port;
-
- ofproto_port_query_by_name(ofproto, netdev_get_name(netdev),
- &ofproto_port);
- *ofp_portp = error ? OFPP_NONE : ofproto_port.ofp_port;
- ofproto_port_destroy(&ofproto_port);
+ *ofp_portp = OFPP_NONE;
+ if (!error) {
+ struct ofproto_port ofproto_port;
+
+ error = ofproto_port_query_by_name(ofproto,
+ netdev_get_name(netdev),
+ &ofproto_port);
+ if (!error) {
+ *ofp_portp = ofproto_port.ofp_port;
+ ofproto_port_destroy(&ofproto_port);
+ }
+ }
}
return error;
}
/* First do a cheap check whether the rule we're looking for already exists
* with the actions that we want. If it does, then we're done. */
- ovs_rwlock_rdlock(&ofproto->tables[0].cls.rwlock);
+ fat_rwlock_rdlock(&ofproto->tables[0].cls.rwlock);
rule = rule_from_cls_rule(classifier_find_match_exactly(
&ofproto->tables[0].cls, match, priority));
if (rule) {
} else {
must_add = true;
}
- ovs_rwlock_unlock(&ofproto->tables[0].cls.rwlock);
+ fat_rwlock_unlock(&ofproto->tables[0].cls.rwlock);
/* If there's no such rule or the rule doesn't have the actions we want,
* fall back to a executing a full flow mod. We can't optimize this at
ofproto_flow_mod(struct ofproto *ofproto, struct ofputil_flow_mod *fm)
OVS_EXCLUDED(ofproto_mutex)
{
+ /* Optimize for the most common case of a repeated learn action.
+ * If an identical flow already exists we only need to update its
+ * 'modified' time. */
+ if (fm->command == OFPFC_MODIFY_STRICT && fm->table_id != OFPTT_ALL
+ && !(fm->flags & OFPUTIL_FF_RESET_COUNTS)) {
+ struct oftable *table = &ofproto->tables[fm->table_id];
+ struct cls_rule match_rule;
+ struct rule *rule;
+ bool done = false;
+
+ cls_rule_init(&match_rule, &fm->match, fm->priority);
+ fat_rwlock_rdlock(&table->cls.rwlock);
+ rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls,
+ &match_rule));
+ if (rule) {
+ /* Reading many of the rule fields and writing on 'modified'
+ * requires the rule->mutex. Also, rule->actions may change
+ * if rule->mutex is not held. */
+ ovs_mutex_lock(&rule->mutex);
+ if (rule->idle_timeout == fm->idle_timeout
+ && rule->hard_timeout == fm->hard_timeout
+ && rule->flags == (fm->flags & OFPUTIL_FF_STATE)
+ && (!fm->modify_cookie || (fm->new_cookie == rule->flow_cookie))
+ && ofpacts_equal(fm->ofpacts, fm->ofpacts_len,
+ rule->actions->ofpacts,
+ rule->actions->ofpacts_len)) {
+ /* Rule already exists and need not change, only update the
+ modified timestamp. */
+ rule->modified = time_msec();
+ done = true;
+ }
+ ovs_mutex_unlock(&rule->mutex);
+ }
+ fat_rwlock_unlock(&table->cls.rwlock);
+
+ if (done) {
+ return 0;
+ }
+ }
+
return handle_flow_mod__(ofproto, NULL, fm, NULL);
}
/* First do a cheap check whether the rule we're looking for has already
* been deleted. If so, then we're done. */
- ovs_rwlock_rdlock(&cls->rwlock);
+ fat_rwlock_rdlock(&cls->rwlock);
rule = rule_from_cls_rule(classifier_find_match_exactly(cls, target,
priority));
- ovs_rwlock_unlock(&cls->rwlock);
+ fat_rwlock_unlock(&cls->rwlock);
if (!rule) {
return true;
}
}
ofport->ofproto = p;
ofport->netdev = netdev;
- ofport->change_seq = netdev_change_seq(netdev);
ofport->pp = *pp;
ofport->ofp_port = pp->port_no;
ofport->created = time_msec();
memcpy(port->pp.hw_addr, pp->hw_addr, ETH_ADDR_LEN);
port->pp.config = ((port->pp.config & ~OFPUTIL_PC_PORT_DOWN)
| (pp->config & OFPUTIL_PC_PORT_DOWN));
- port->pp.state = pp->state;
+ port->pp.state = ((port->pp.state & ~OFPUTIL_PS_LINK_DOWN)
+ | (pp->state & OFPUTIL_PS_LINK_DOWN));
port->pp.curr = pp->curr;
port->pp.advertised = pp->advertised;
port->pp.supported = pp->supported;
* Don't close the old netdev yet in case port_modified has to
* remove a retained reference to it.*/
port->netdev = netdev;
- port->change_seq = netdev_change_seq(netdev);
if (port->ofproto->ofproto_class->port_modified) {
port->ofproto->ofproto_class->port_modified(port);
ofproto_rule_ref(struct rule *rule)
{
if (rule) {
- unsigned int orig;
-
- atomic_add(&rule->ref_count, 1, &orig);
- ovs_assert(orig != 0);
+ ovs_refcount_ref(&rule->ref_count);
}
}
void
ofproto_rule_unref(struct rule *rule)
{
- if (rule) {
- unsigned int orig;
-
- atomic_sub(&rule->ref_count, 1, &orig);
- if (orig == 1) {
- rule->ofproto->ofproto_class->rule_destruct(rule);
- ofproto_rule_destroy__(rule);
- } else {
- ovs_assert(orig != 0);
- }
+ if (rule && ovs_refcount_unref(&rule->ref_count) == 1) {
+ rule->ofproto->ofproto_class->rule_destruct(rule);
+ ofproto_rule_destroy__(rule);
}
}
cls_rule_destroy(CONST_CAST(struct cls_rule *, &rule->cr));
rule_actions_unref(rule->actions);
ovs_mutex_destroy(&rule->mutex);
+ ovs_refcount_destroy(&rule->ref_count);
rule->ofproto->ofproto_class->rule_dealloc(rule);
}
struct rule_actions *actions;
actions = xmalloc(sizeof *actions);
- atomic_init(&actions->ref_count, 1);
+ ovs_refcount_init(&actions->ref_count);
actions->ofpacts = xmemdup(ofpacts, ofpacts_len);
actions->ofpacts_len = ofpacts_len;
actions->provider_meter_id
rule_actions_ref(struct rule_actions *actions)
{
if (actions) {
- unsigned int orig;
-
- atomic_add(&actions->ref_count, 1, &orig);
- ovs_assert(orig != 0);
+ ovs_refcount_ref(&actions->ref_count);
}
}
void
rule_actions_unref(struct rule_actions *actions)
{
- if (actions) {
- unsigned int orig;
-
- atomic_sub(&actions->ref_count, 1, &orig);
- if (orig == 1) {
- free(actions->ofpacts);
- free(actions);
- } else {
- ovs_assert(orig != 0);
- }
+ if (actions && ovs_refcount_unref(&actions->ref_count) == 1) {
+ ovs_refcount_destroy(&actions->ref_count);
+ free(actions->ofpacts);
+ free(actions);
}
}
op->actions->ofpacts_len, out_port);
}
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
static void
ots = xcalloc(p->n_tables, sizeof *ots);
for (i = 0; i < p->n_tables; i++) {
ots[i].table_id = i;
- sprintf(ots[i].name, "table%zu", i);
+ sprintf(ots[i].name, "table%"PRIuSIZE, i);
ots[i].match = htonll(OFPXMT13_MASK);
ots[i].wildcards = htonll(OFPXMT13_MASK);
ots[i].write_actions = htonl(OFPAT11_OUTPUT);
ots[i].instructions = htonl(OFPIT11_ALL);
ots[i].config = htonl(OFPTC11_TABLE_MISS_MASK);
ots[i].max_entries = htonl(1000000); /* An arbitrary big number. */
- ovs_rwlock_rdlock(&p->tables[i].cls.rwlock);
+ fat_rwlock_rdlock(&p->tables[i].cls.rwlock);
ots[i].active_count = htonl(classifier_count(&p->tables[i].cls));
- ovs_rwlock_unlock(&p->tables[i].cls.rwlock);
+ fat_rwlock_unlock(&p->tables[i].cls.rwlock);
}
p->ofproto_class->get_tables(p, ots);
}
/* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns
- * 0 if 'table_id' is OK, otherwise an OpenFlow error code. */
-static enum ofperr
+ * true if 'table_id' is OK, false otherwise. */
+static bool
check_table_id(const struct ofproto *ofproto, uint8_t table_id)
{
- return (table_id == 0xff || table_id < ofproto->n_tables
- ? 0
- : OFPERR_OFPBRC_BAD_TABLE_ID);
-
+ return table_id == OFPTT_ALL || table_id < ofproto->n_tables;
}
static struct oftable *
OVS_REQUIRES(ofproto_mutex)
{
struct oftable *table;
- enum ofperr error;
+ enum ofperr error = 0;
rule_collection_init(rules);
- error = check_table_id(ofproto, criteria->table_id);
- if (error) {
+ if (!check_table_id(ofproto, criteria->table_id)) {
+ error = OFPERR_OFPBRC_BAD_TABLE_ID;
goto exit;
}
struct cls_cursor cursor;
struct rule *rule;
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
cls_cursor_init(&cursor, &table->cls, &criteria->cr);
CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
error = collect_rule(rule, criteria, rules);
break;
}
}
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
}
}
OVS_REQUIRES(ofproto_mutex)
{
struct oftable *table;
- int error;
+ int error = 0;
rule_collection_init(rules);
- error = check_table_id(ofproto, criteria->table_id);
- if (error) {
+ if (!check_table_id(ofproto, criteria->table_id)) {
+ error = OFPERR_OFPBRC_BAD_TABLE_ID;
goto exit;
}
FOR_EACH_MATCHING_TABLE (table, criteria->table_id, ofproto) {
struct rule *rule;
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
rule = rule_from_cls_rule(classifier_find_rule_exactly(
&table->cls, &criteria->cr));
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
if (rule) {
error = collect_rule(rule, criteria, rules);
if (error) {
fs.idle_timeout = rule->idle_timeout;
fs.hard_timeout = rule->hard_timeout;
created = rule->created;
- used = rule->used;
modified = rule->modified;
actions = rule_get_actions__(rule);
flags = rule->flags;
ovs_mutex_unlock(&rule->mutex);
+ ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count,
+ &fs.byte_count, &used);
+
minimatch_expand(&rule->cr.match, &fs.match);
fs.table_id = rule->table_id;
calc_duration(created, now, &fs.duration_sec, &fs.duration_nsec);
fs.priority = rule->cr.priority;
fs.idle_age = age_secs(now - used);
fs.hard_age = age_secs(now - modified);
- ofproto->ofproto_class->rule_get_stats(rule, &fs.packet_count,
- &fs.byte_count);
fs.ofpacts = actions->ofpacts;
fs.ofpacts_len = actions->ofpacts_len;
{
uint64_t packet_count, byte_count;
struct rule_actions *actions;
- long long int created;
+ long long int created, used;
- rule->ofproto->ofproto_class->rule_get_stats(rule,
- &packet_count, &byte_count);
+ rule->ofproto->ofproto_class->rule_get_stats(rule, &packet_count,
+ &byte_count, &used);
ovs_mutex_lock(&rule->mutex);
actions = rule_get_actions__(rule);
struct cls_cursor cursor;
struct rule *rule;
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
cls_cursor_init(&cursor, &table->cls, NULL);
CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
flow_stats_ds(rule, results);
}
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
}
}
struct rule *rule = rules.rules[i];
uint64_t packet_count;
uint64_t byte_count;
+ long long int used;
ofproto->ofproto_class->rule_get_stats(rule, &packet_count,
- &byte_count);
+ &byte_count, &used);
if (packet_count == UINT64_MAX) {
unknown_packets = true;
struct cls_rule cr;
struct rule *rule;
uint8_t table_id;
- int error;
+ int error = 0;
- error = check_table_id(ofproto, fm->table_id);
- if (error) {
+ if (!check_table_id(ofproto, fm->table_id)) {
+ error = OFPERR_OFPBRC_BAD_TABLE_ID;
return error;
}
cls_rule_init(&cr, &fm->match, fm->priority);
/* Transform "add" into "modify" if there's an existing identical flow. */
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
rule = rule_from_cls_rule(classifier_find_rule_exactly(&table->cls, &cr));
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
if (rule) {
cls_rule_destroy(&cr);
if (!rule_is_modifiable(rule)) {
if (fm->flags & OFPUTIL_FF_CHECK_OVERLAP) {
bool overlaps;
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
overlaps = classifier_rule_overlaps(&table->cls, &cr);
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
if (overlaps) {
cls_rule_destroy(&cr);
/* Initialize base state. */
*CONST_CAST(struct ofproto **, &rule->ofproto) = ofproto;
cls_rule_move(CONST_CAST(struct cls_rule *, &rule->cr), &cr);
- atomic_init(&rule->ref_count, 1);
+ ovs_refcount_init(&rule->ref_count);
rule->pending = NULL;
rule->flow_cookie = fm->new_cookie;
- rule->created = rule->modified = rule->used = time_msec();
+ rule->created = rule->modified = time_msec();
ovs_mutex_init(&rule->mutex);
ovs_mutex_lock(&rule->mutex);
OVS_REQUIRES(ofproto_mutex)
{
struct ofputil_flow_removed fr;
+ long long int used;
if (ofproto_rule_is_hidden(rule) ||
!(rule->flags & OFPUTIL_FF_SEND_FLOW_REM)) {
fr.hard_timeout = rule->hard_timeout;
ovs_mutex_unlock(&rule->mutex);
rule->ofproto->ofproto_class->rule_get_stats(rule, &fr.packet_count,
- &fr.byte_count);
+ &fr.byte_count, &used);
connmgr_send_flow_removed(rule->ofproto->connmgr, &fr);
}
* actions, so that when the operation commits we report the change. */
switch (op->type) {
case OFOPERATION_ADD:
- NOT_REACHED();
+ OVS_NOT_REACHED();
case OFOPERATION_MODIFY:
case OFOPERATION_REPLACE:
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
}
fu.ofpacts = actions ? actions->ofpacts : NULL;
struct cls_cursor cursor;
struct rule *rule;
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
cls_cursor_init(&cursor, &table->cls, &target);
CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
ovs_assert(!rule->pending); /* XXX */
ofproto_collect_ofmonitor_refresh_rule(m, rule, seqno, rules);
}
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
}
HMAP_FOR_EACH (op, hmap_node, &ofproto->deletions) {
}
}
+static enum ofperr
+table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm)
+{
+ /* XXX Reject all configurations because none are currently supported */
+ return OFPERR_OFPTMFC_BAD_CONFIG;
+
+ if (tm->table_id == OFPTT_ALL) {
+ int i;
+ for (i = 0; i < ofproto->n_tables; i++) {
+ atomic_store(&ofproto->tables[i].config,
+ (unsigned int)tm->config);
+ }
+ } else if (!check_table_id(ofproto, tm->table_id)) {
+ return OFPERR_OFPTMFC_BAD_TABLE;
+ } else {
+ atomic_store(&ofproto->tables[tm->table_id].config,
+ (unsigned int)tm->config);
+ }
+
+ return 0;
+}
+
static enum ofperr
handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh)
{
+ struct ofproto *ofproto = ofconn_get_ofproto(ofconn);
struct ofputil_table_mod tm;
enum ofperr error;
return error;
}
- /* XXX Actual table mod support is not implemented yet. */
- return 0;
+ return table_mod(ofproto, &tm);
}
static enum ofperr
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
ofmonitor_report(ofproto->connmgr, rule, event_type,
if (!op->error) {
long long int now = time_msec();
+ ovs_mutex_lock(&rule->mutex);
rule->modified = now;
if (op->type == OFOPERATION_REPLACE) {
- rule->created = rule->used = now;
+ rule->created = now;
}
+ ovs_mutex_unlock(&rule->mutex);
} else {
ofproto_rule_change_cookie(ofproto, rule, op->flow_cookie);
ovs_mutex_lock(&rule->mutex);
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
ofoperation_destroy(op);
/* Returns an eviction priority for 'rule'. The return value should be
* interpreted so that higher priorities make a rule more attractive candidates
- * for eviction. */
+ * for eviction.
+ * Called only if have a timeout. */
static uint32_t
-rule_eviction_priority(struct rule *rule)
+rule_eviction_priority(struct ofproto *ofproto, struct rule *rule)
OVS_REQUIRES(ofproto_mutex)
{
- long long int hard_expiration;
- long long int idle_expiration;
- long long int expiration;
+ long long int expiration = LLONG_MAX;
+ long long int modified;
uint32_t expiration_offset;
- /* Calculate time of expiration. */
+ /* 'modified' needs protection even when we hold 'ofproto_mutex'. */
ovs_mutex_lock(&rule->mutex);
- hard_expiration = (rule->hard_timeout
- ? rule->modified + rule->hard_timeout * 1000
- : LLONG_MAX);
- idle_expiration = (rule->idle_timeout
- ? rule->used + rule->idle_timeout * 1000
- : LLONG_MAX);
- expiration = MIN(hard_expiration, idle_expiration);
+ modified = rule->modified;
ovs_mutex_unlock(&rule->mutex);
+
+ if (rule->hard_timeout) {
+ expiration = modified + rule->hard_timeout * 1000;
+ }
+ if (rule->idle_timeout) {
+ uint64_t packets, bytes;
+ long long int used;
+ long long int idle_expiration;
+
+ ofproto->ofproto_class->rule_get_stats(rule, &packets, &bytes, &used);
+ idle_expiration = used + rule->idle_timeout * 1000;
+ expiration = MIN(expiration, idle_expiration);
+ }
+
if (expiration == LLONG_MAX) {
return 0;
}
struct oftable *table = &ofproto->tables[rule->table_id];
bool has_timeout;
- ovs_mutex_lock(&rule->mutex);
+ /* Timeouts may be modified only when holding 'ofproto_mutex'. We have it
+ * so no additional protection is needed. */
has_timeout = rule->hard_timeout || rule->idle_timeout;
- ovs_mutex_unlock(&rule->mutex);
if (table->eviction_fields && has_timeout) {
struct eviction_group *evg;
rule->eviction_group = evg;
heap_insert(&evg->rules, &rule->evg_node,
- rule_eviction_priority(rule));
+ rule_eviction_priority(ofproto, rule));
eviction_group_resized(table, evg);
}
}
oftable_init(struct oftable *table)
{
memset(table, 0, sizeof *table);
- classifier_init(&table->cls);
+ classifier_init(&table->cls, flow_segment_u32s);
table->max_flows = UINT_MAX;
+ atomic_init(&table->config, (unsigned int)OFPTC11_TABLE_MISS_CONTROLLER);
}
/* Destroys 'table', including its classifier and eviction groups.
static void
oftable_destroy(struct oftable *table)
{
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
ovs_assert(classifier_is_empty(&table->cls));
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
oftable_disable_eviction(table);
classifier_destroy(&table->cls);
free(table->name);
+ atomic_destroy(&table->config);
}
/* Changes the name of 'table' to 'name'. If 'name' is NULL or the empty
hmap_init(&table->eviction_groups_by_id);
heap_init(&table->eviction_groups_by_size);
- ovs_rwlock_rdlock(&table->cls.rwlock);
+ fat_rwlock_rdlock(&table->cls.rwlock);
cls_cursor_init(&cursor, &table->cls, NULL);
CLS_CURSOR_FOR_EACH (rule, cr, &cursor) {
eviction_group_add_rule(rule);
}
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
}
/* Removes 'rule' from the oftable that contains it. */
{
struct classifier *cls = &ofproto->tables[rule->table_id].cls;
- ovs_rwlock_wrlock(&cls->rwlock);
+ fat_rwlock_wrlock(&cls->rwlock);
classifier_remove(cls, CONST_CAST(struct cls_rule *, &rule->cr));
- ovs_rwlock_unlock(&cls->rwlock);
+ fat_rwlock_unlock(&cls->rwlock);
cookies_remove(ofproto, rule);
struct meter *meter = ofproto->meters[meter_id];
list_insert(&meter->rules, &rule->meter_list_node);
}
- ovs_rwlock_wrlock(&table->cls.rwlock);
+ fat_rwlock_wrlock(&table->cls.rwlock);
classifier_insert(&table->cls, CONST_CAST(struct cls_rule *, &rule->cr));
- ovs_rwlock_unlock(&table->cls.rwlock);
+ fat_rwlock_unlock(&table->cls.rwlock);
eviction_group_add_rule(rule);
}
\f
OFPROTO_FOR_EACH_TABLE (oftable, ofproto) {
const struct cls_subtable *table;
- ovs_rwlock_rdlock(&oftable->cls.rwlock);
+ fat_rwlock_rdlock(&oftable->cls.rwlock);
HMAP_FOR_EACH (table, hmap_node, &oftable->cls.subtables) {
if (minimask_get_vid_mask(&table->mask) == VLAN_VID_MASK) {
const struct cls_rule *rule;
}
}
}
- ovs_rwlock_unlock(&oftable->cls.rwlock);
+ fat_rwlock_unlock(&oftable->cls.rwlock);
}
}