#include "dpif.h"
#include "dynamic-string.h"
#include "fail-open.h"
+#include "guarded-list.h"
#include "hmapx.h"
#include "lacp.h"
#include "learn.h"
#include "ofproto-dpif-ipfix.h"
#include "ofproto-dpif-mirror.h"
#include "ofproto-dpif-sflow.h"
+#include "ofproto-dpif-upcall.h"
#include "ofproto-dpif-xlate.h"
#include "poll-loop.h"
#include "simap.h"
COVERAGE_DEFINE(facet_unexpected);
COVERAGE_DEFINE(facet_suppress);
COVERAGE_DEFINE(subfacet_install_fail);
+COVERAGE_DEFINE(packet_in_overflow);
+COVERAGE_DEFINE(flow_mod_overflow);
/* Number of implemented OpenFlow tables. */
enum { N_TABLES = 255 };
struct flow_miss;
struct facet;
-static struct rule_dpif *rule_dpif_lookup(struct ofproto_dpif *,
- const struct flow *,
- struct flow_wildcards *wc);
+struct rule_dpif {
+ struct rule up;
+
+ /* These statistics:
+ *
+ * - Do include packets and bytes from facets that have been deleted or
+ * whose own statistics have been folded into the rule.
+ *
+ * - Do include packets and bytes sent "by hand" that were accounted to
+ * the rule without any facet being involved (this is a rare corner
+ * case in rule_execute()).
+ *
+ * - 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 subfacet.
+ */
+ struct ovs_mutex stats_mutex;
+ uint64_t packet_count OVS_GUARDED; /* Number of packets received. */
+ uint64_t byte_count OVS_GUARDED; /* Number of bytes received. */
+};
static void rule_get_stats(struct rule *, uint64_t *packets, uint64_t *bytes);
-static void rule_invalidate(const struct rule_dpif *);
+static struct rule_dpif *rule_dpif_cast(const struct rule *);
struct ofbundle {
struct hmap_node hmap_node; /* In struct ofproto's "bundles" hmap. */
#define SUBFACET_DESTROY_MAX_BATCH 50
-static struct subfacet *subfacet_create(struct facet *, struct flow_miss *miss,
- long long int now);
+static struct subfacet *subfacet_create(struct facet *, struct flow_miss *);
static struct subfacet *subfacet_find(struct dpif_backer *,
const struct nlattr *key, size_t key_len,
uint32_t key_hash);
uint8_t tcp_flags; /* TCP flags seen for this 'rule'. */
struct xlate_out xout;
- bool fail_open; /* Facet matched the fail open rule. */
/* Storage for a single subfacet, to reduce malloc() time and space
* overhead. (A facet always has at least one subfacet and in the common
long long int learn_rl; /* Rate limiter for facet_learn(). */
};
-static struct facet *facet_create(const struct flow_miss *, struct rule_dpif *,
- struct xlate_out *,
- struct dpif_flow_stats *);
+static struct facet *facet_create(const struct flow_miss *);
static void facet_remove(struct facet *);
static void facet_free(struct facet *);
static void facet_flush_stats(struct facet *);
static void facet_reset_counters(struct facet *);
+static void flow_push_stats(struct ofproto_dpif *, struct flow *,
+ struct dpif_flow_stats *, bool may_learn);
static void facet_push_stats(struct facet *, bool may_learn);
static void facet_learn(struct facet *);
static void facet_account(struct facet *);
struct list bundle_node; /* In struct ofbundle's "ports" list. */
struct cfm *cfm; /* Connectivity Fault Management, if any. */
struct bfd *bfd; /* BFD, if any. */
- tag_type tag; /* Tag associated with this port. */
bool may_enable; /* May be enabled in bonds. */
bool is_tunnel; /* This port is a tunnel. */
long long int carrier_seq; /* Carrier status changes. */
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. */
+ /* Queue to DSCP mapping. */
+ struct ofproto_port_queue *qdscp;
+ size_t n_qdscp;
/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
*
int vlandev_vid;
};
-/* 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. */
-};
-
/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
*
* This is deprecated. It is only for compatibility with broken device drivers
int vid;
};
-static bool vsp_adjust_flow(const struct ofproto_dpif *, struct flow *);
static void vsp_remove(struct ofport_dpif *);
static void vsp_add(struct ofport_dpif *, ofp_port_t realdev_ofp_port, int vid);
static void port_wait(struct ofport_dpif *);
static int set_bfd(struct ofport *, const struct smap *);
static int set_cfm(struct ofport *, const struct cfm_settings *);
-static void ofport_clear_priorities(struct ofport_dpif *);
static void ofport_update_peer(struct ofport_dpif *);
static void run_fast_rl(void);
+static int run_fast(struct ofproto *);
struct dpif_completion {
struct list list_node;
struct ofoperation *op;
};
-/* Extra information about a classifier table.
- * Currently used just for optimized flow revalidation. */
-struct table_dpif {
- /* If either of these is nonnull, then this table has a form that allows
- * flows to be tagged to avoid revalidating most flows for the most common
- * kinds of flow table changes. */
- struct cls_table *catchall_table; /* Table that wildcards all fields. */
- struct cls_table *other_table; /* Table with any other wildcard set. */
- uint32_t basis; /* Keeps each table's tags separate. */
-};
-
/* Reasons that we might need to revalidate every facet, and corresponding
* coverage counters.
*
enum revalidate_reason {
REV_RECONFIGURE = 1, /* Switch configuration changed. */
REV_STP, /* Spanning tree protocol port status change. */
+ REV_BOND, /* Bonding changed. */
REV_PORT_TOGGLED, /* Port enabled or disabled by CFM, LACP, ...*/
REV_FLOW_TABLE, /* Flow table changed. */
+ REV_MAC_LEARNING, /* Mac learning changed. */
REV_INCONSISTENCY /* Facet self-check failed. */
};
COVERAGE_DEFINE(rev_reconfigure);
COVERAGE_DEFINE(rev_stp);
+COVERAGE_DEFINE(rev_bond);
COVERAGE_DEFINE(rev_port_toggled);
COVERAGE_DEFINE(rev_flow_table);
+COVERAGE_DEFINE(rev_mac_learning);
COVERAGE_DEFINE(rev_inconsistency);
-/* Drop keys are odp flow keys which have drop flows installed in the kernel.
- * These are datapath flows which have no associated ofproto, if they did we
- * would use facets. */
-struct drop_key {
- struct hmap_node hmap_node;
- struct nlattr *key;
- size_t key_len;
-};
-
struct avg_subfacet_rates {
double add_rate; /* Moving average of new flows created per minute. */
double del_rate; /* Moving average of flows deleted per minute. */
char *type;
int refcount;
struct dpif *dpif;
+ struct udpif *udpif;
struct timer next_expiration;
- struct hmap odp_to_ofport_map; /* ODP port to ofport mapping. */
+
+ struct ovs_rwlock odp_to_ofport_lock;
+ struct hmap odp_to_ofport_map OVS_GUARDED; /* ODP port to ofport map. */
struct simap tnl_backers; /* Set of dpif ports backing tunnels. */
/* Facet revalidation flags applying to facets which use this backer. */
enum revalidate_reason need_revalidate; /* Revalidate every facet. */
- struct tag_set revalidate_set; /* Revalidate only matching facets. */
struct hmap drop_keys; /* Set of dropped odp keys. */
bool recv_set_enable; /* Enables or disables receiving packets. */
/* Number of subfacets added or deleted from 'created' to 'last_minute.' */
unsigned long long int total_subfacet_add_count;
unsigned long long int total_subfacet_del_count;
+
+ /* Number of upcall handling threads. */
+ unsigned int n_handler_threads;
};
/* All existing ofproto_backer instances, indexed by ofproto->up.type. */
static struct shash all_dpif_backers = SHASH_INITIALIZER(&all_dpif_backers);
static void drop_key_clear(struct dpif_backer *);
-static struct ofport_dpif *
-odp_port_to_ofport(const struct dpif_backer *, odp_port_t odp_port);
static void update_moving_averages(struct dpif_backer *backer);
struct ofproto_dpif {
struct classifier facets; /* Contains 'struct facet's. */
long long int consistency_rl;
- /* Revalidation. */
- struct table_dpif tables[N_TABLES];
-
- /* Support for debugging async flow mods. */
- struct list completions;
-
struct netdev_stats stats; /* To account packets generated and consumed in
* userspace. */
long long int stp_last_tick;
/* VLAN splinters. */
- struct hmap realdev_vid_map; /* (realdev,vid) -> vlandev. */
- struct hmap vlandev_map; /* vlandev -> (realdev,vid). */
+ struct ovs_mutex vsp_mutex;
+ struct hmap realdev_vid_map OVS_GUARDED; /* (realdev,vid) -> vlandev. */
+ struct hmap vlandev_map OVS_GUARDED; /* vlandev -> (realdev,vid). */
/* Ports. */
struct sset ports; /* Set of standard port names. */
/* Per ofproto's dpif stats. */
uint64_t n_hit;
uint64_t n_missed;
-};
-/* Defer flow mod completion until "ovs-appctl ofproto/unclog"? (Useful only
- * for debugging the asynchronous flow_mod implementation.) */
-static bool clogged;
+ /* Work queues. */
+ struct guarded_list flow_mods; /* Contains "struct flow_mod"s. */
+ struct guarded_list pins; /* Contains "struct ofputil_packet_in"s. */
+};
/* By default, flows in the datapath are wildcarded (megaflows). They
* may be disabled with the "ovs-appctl dpif/disable-megaflows" command. */
static struct ofport_dpif *get_ofp_port(const struct ofproto_dpif *ofproto,
ofp_port_t ofp_port);
+static void ofproto_trace(struct ofproto_dpif *, const struct flow *,
+ const struct ofpbuf *packet, struct ds *);
/* Upcalls. */
-#define FLOW_MISS_MAX_BATCH 50
-static int handle_upcalls(struct dpif_backer *, unsigned int max_batch);
+static void handle_upcalls(struct dpif_backer *);
/* Flow expiration. */
static int expire(struct dpif_backer *);
/* Initial mappings of port to bridge mappings. */
static struct shash init_ofp_ports = SHASH_INITIALIZER(&init_ofp_ports);
-int
+/* Executes and takes ownership of 'fm'. */
+void
ofproto_dpif_flow_mod(struct ofproto_dpif *ofproto,
struct ofputil_flow_mod *fm)
{
- return ofproto_flow_mod(&ofproto->up, fm);
+ if (!guarded_list_push_back(&ofproto->flow_mods, &fm->list_node, 1024)) {
+ COVERAGE_INC(flow_mod_overflow);
+ free(fm->ofpacts);
+ free(fm);
+ }
}
+/* Appends 'pin' to the queue of "packet ins" to be sent to the controller.
+ * Takes ownership of 'pin' and pin->packet. */
void
ofproto_dpif_send_packet_in(struct ofproto_dpif *ofproto,
struct ofputil_packet_in *pin)
{
- connmgr_send_packet_in(ofproto->up.connmgr, pin);
+ if (!guarded_list_push_back(&ofproto->pins, &pin->list_node, 1024)) {
+ COVERAGE_INC(packet_in_overflow);
+ free(CONST_CAST(void *, pin->packet));
+ free(pin);
+ }
}
\f
/* Factory functions. */
/* Type functions. */
+static void process_dpif_port_changes(struct dpif_backer *);
+static void process_dpif_all_ports_changed(struct dpif_backer *);
+static void process_dpif_port_change(struct dpif_backer *,
+ const char *devname);
+static void process_dpif_port_error(struct dpif_backer *, int error);
+
static struct ofproto_dpif *
lookup_ofproto_dpif_by_port_name(const char *name)
{
{
static long long int push_timer = LLONG_MIN;
struct dpif_backer *backer;
- char *devname;
- int error;
backer = shash_find_data(&all_dpif_backers, type);
if (!backer) {
* and the configuration has now changed to "false", enable receiving
* packets from the datapath. */
if (!backer->recv_set_enable && !ofproto_get_flow_restore_wait()) {
+ int error;
+
backer->recv_set_enable = true;
error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
if (error) {
+ udpif_recv_set(backer->udpif, 0, false);
VLOG_ERR("Failed to enable receiving packets in dpif.");
return error;
}
+ udpif_recv_set(backer->udpif, n_handler_threads,
+ backer->recv_set_enable);
dpif_flow_flush(backer->dpif);
backer->need_revalidate = REV_RECONFIGURE;
}
- if (backer->need_revalidate
- || !tag_set_is_empty(&backer->revalidate_set)) {
- struct tag_set revalidate_set = backer->revalidate_set;
- bool need_revalidate = backer->need_revalidate;
+ /* If the n_handler_threads is reconfigured, call udpif_recv_set()
+ * to reset the handler threads. */
+ if (backer->n_handler_threads != n_handler_threads) {
+ udpif_recv_set(backer->udpif, n_handler_threads,
+ backer->recv_set_enable);
+ backer->n_handler_threads = n_handler_threads;
+ }
+
+ if (backer->need_revalidate) {
struct ofproto_dpif *ofproto;
struct simap_node *node;
struct simap tmp_backers;
switch (backer->need_revalidate) {
case REV_RECONFIGURE: COVERAGE_INC(rev_reconfigure); break;
case REV_STP: COVERAGE_INC(rev_stp); break;
+ case REV_BOND: COVERAGE_INC(rev_bond); break;
case REV_PORT_TOGGLED: COVERAGE_INC(rev_port_toggled); break;
case REV_FLOW_TABLE: COVERAGE_INC(rev_flow_table); break;
+ case REV_MAC_LEARNING: COVERAGE_INC(rev_mac_learning); break;
case REV_INCONSISTENCY: COVERAGE_INC(rev_inconsistency); break;
}
-
- if (backer->need_revalidate) {
- /* Clear the drop_keys in case we should now be accepting some
- * formerly dropped flows. */
- drop_key_clear(backer);
- }
-
- /* Clear the revalidation flags. */
- tag_set_init(&backer->revalidate_set);
backer->need_revalidate = 0;
+ /* Clear the drop_keys in case we should now be accepting some
+ * formerly dropped flows. */
+ drop_key_clear(backer);
+
HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
struct facet *facet, *next;
+ struct ofport_dpif *ofport;
struct cls_cursor cursor;
+ struct ofbundle *bundle;
if (ofproto->backer != backer) {
continue;
}
- if (need_revalidate) {
- struct ofport_dpif *ofport;
- struct ofbundle *bundle;
-
- xlate_ofproto_set(ofproto, ofproto->up.name, ofproto->ml,
- ofproto->mbridge, ofproto->sflow,
- ofproto->ipfix, ofproto->up.frag_handling,
- ofproto->up.forward_bpdu,
- connmgr_has_in_band(ofproto->up.connmgr),
- ofproto->netflow != NULL,
- ofproto->stp != NULL);
-
- HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
- xlate_bundle_set(ofproto, bundle, bundle->name,
- bundle->vlan_mode, bundle->vlan,
- bundle->trunks, bundle->use_priority_tags,
- bundle->bond, bundle->lacp,
- bundle->floodable);
- }
+ ovs_rwlock_wrlock(&xlate_rwlock);
+ xlate_ofproto_set(ofproto, ofproto->up.name,
+ ofproto->backer->dpif, ofproto->miss_rule,
+ ofproto->no_packet_in_rule, ofproto->ml,
+ ofproto->stp, ofproto->mbridge,
+ ofproto->sflow, ofproto->ipfix,
+ ofproto->up.frag_handling,
+ ofproto->up.forward_bpdu,
+ connmgr_has_in_band(ofproto->up.connmgr),
+ ofproto->netflow != NULL);
- HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
- xlate_ofport_set(ofproto, ofport->bundle, ofport,
- ofport->up.ofp_port, ofport->odp_port,
- ofport->up.netdev, ofport->cfm,
- ofport->bfd, ofport->peer,
- ofport->up.pp.config, ofport->stp_state,
- ofport->is_tunnel, ofport->may_enable);
- }
+ HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
+ xlate_bundle_set(ofproto, bundle, bundle->name,
+ bundle->vlan_mode, bundle->vlan,
+ bundle->trunks, bundle->use_priority_tags,
+ bundle->bond, bundle->lacp,
+ bundle->floodable);
}
+ HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
+ int stp_port = ofport->stp_port
+ ? stp_port_no(ofport->stp_port)
+ : -1;
+ xlate_ofport_set(ofproto, ofport->bundle, ofport,
+ ofport->up.ofp_port, ofport->odp_port,
+ ofport->up.netdev, ofport->cfm,
+ ofport->bfd, ofport->peer, stp_port,
+ ofport->qdscp, ofport->n_qdscp,
+ ofport->up.pp.config, ofport->is_tunnel,
+ ofport->may_enable);
+ }
+ ovs_rwlock_unlock(&xlate_rwlock);
+
+ /* Only ofproto-dpif cares about the facet classifier so we just
+ * lock cls_cursor_init() to appease the thread safety analysis. */
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
cls_cursor_init(&cursor, &ofproto->facets, NULL);
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
CLS_CURSOR_FOR_EACH_SAFE (facet, next, cr, &cursor) {
- if (need_revalidate
- || tag_set_intersects(&revalidate_set, facet->xout.tags)) {
- facet_revalidate(facet);
- run_fast_rl();
- }
+ facet_revalidate(facet);
+ run_fast_rl();
}
}
+
+ udpif_revalidate(backer->udpif);
}
if (!backer->recv_set_enable) {
timer_set_duration(&backer->next_expiration, delay);
}
- /* Check for port changes in the dpif. */
- while ((error = dpif_port_poll(backer->dpif, &devname)) == 0) {
- struct ofproto_dpif *ofproto;
- struct dpif_port port;
-
- /* Don't report on the datapath's device. */
- if (!strcmp(devname, dpif_base_name(backer->dpif))) {
- goto next;
- }
-
- HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node,
- &all_ofproto_dpifs) {
- if (simap_contains(&ofproto->backer->tnl_backers, devname)) {
- goto next;
- }
- }
-
- ofproto = lookup_ofproto_dpif_by_port_name(devname);
- if (dpif_port_query_by_name(backer->dpif, devname, &port)) {
- /* The port was removed. If we know the datapath,
- * report it through poll_set(). If we don't, it may be
- * notifying us of a removal we initiated, so ignore it.
- * If there's a pending ENOBUFS, let it stand, since
- * everything will be reevaluated. */
- if (ofproto && ofproto->port_poll_errno != ENOBUFS) {
- sset_add(&ofproto->port_poll_set, devname);
- ofproto->port_poll_errno = 0;
- }
- } else if (!ofproto) {
- /* The port was added, but we don't know with which
- * ofproto we should associate it. Delete it. */
- dpif_port_del(backer->dpif, port.port_no);
- }
- dpif_port_destroy(&port);
-
- next:
- free(devname);
- }
-
- if (error != EAGAIN) {
- struct ofproto_dpif *ofproto;
-
- /* There was some sort of error, so propagate it to all
- * ofprotos that use this backer. */
- HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node,
- &all_ofproto_dpifs) {
- if (ofproto->backer == backer) {
- sset_clear(&ofproto->port_poll_set);
- ofproto->port_poll_errno = error;
- }
- }
- }
+ process_dpif_port_changes(backer);
if (backer->governor) {
size_t n_subfacets;
return 0;
}
-static int
-dpif_backer_run_fast(struct dpif_backer *backer, int max_batch)
+/* Check for and handle port changes in 'backer''s dpif. */
+static void
+process_dpif_port_changes(struct dpif_backer *backer)
{
- unsigned int work;
+ for (;;) {
+ char *devname;
+ int error;
- /* If recv_set_enable is false, we should not handle upcalls. */
- if (!backer->recv_set_enable) {
- return 0;
+ error = dpif_port_poll(backer->dpif, &devname);
+ switch (error) {
+ case EAGAIN:
+ return;
+
+ case ENOBUFS:
+ process_dpif_all_ports_changed(backer);
+ break;
+
+ case 0:
+ process_dpif_port_change(backer, devname);
+ free(devname);
+ break;
+
+ default:
+ process_dpif_port_error(backer, error);
+ break;
+ }
}
+}
- /* Handle one or more batches of upcalls, until there's nothing left to do
- * or until we do a fixed total amount of work.
- *
- * We do work in batches because it can be much cheaper to set up a number
- * of flows and fire off their patches all at once. We do multiple batches
- * because in some cases handling a packet can cause another packet to be
- * queued almost immediately as part of the return flow. Both
- * optimizations can make major improvements on some benchmarks and
- * presumably for real traffic as well. */
- work = 0;
- while (work < max_batch) {
- int retval = handle_upcalls(backer, max_batch - work);
- if (retval <= 0) {
- return -retval;
+static void
+process_dpif_all_ports_changed(struct dpif_backer *backer)
+{
+ struct ofproto_dpif *ofproto;
+ struct dpif_port dpif_port;
+ struct dpif_port_dump dump;
+ struct sset devnames;
+ const char *devname;
+
+ sset_init(&devnames);
+ HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
+ if (ofproto->backer == backer) {
+ struct ofport *ofport;
+
+ HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
+ sset_add(&devnames, netdev_get_name(ofport->netdev));
+ }
+ }
+ }
+ DPIF_PORT_FOR_EACH (&dpif_port, &dump, backer->dpif) {
+ sset_add(&devnames, dpif_port.name);
+ }
+
+ SSET_FOR_EACH (devname, &devnames) {
+ process_dpif_port_change(backer, devname);
+ }
+ sset_destroy(&devnames);
+}
+
+static void
+process_dpif_port_change(struct dpif_backer *backer, const char *devname)
+{
+ struct ofproto_dpif *ofproto;
+ struct dpif_port port;
+
+ /* Don't report on the datapath's device. */
+ if (!strcmp(devname, dpif_base_name(backer->dpif))) {
+ return;
+ }
+
+ HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node,
+ &all_ofproto_dpifs) {
+ if (simap_contains(&ofproto->backer->tnl_backers, devname)) {
+ return;
+ }
+ }
+
+ ofproto = lookup_ofproto_dpif_by_port_name(devname);
+ if (dpif_port_query_by_name(backer->dpif, devname, &port)) {
+ /* The port was removed. If we know the datapath,
+ * report it through poll_set(). If we don't, it may be
+ * notifying us of a removal we initiated, so ignore it.
+ * If there's a pending ENOBUFS, let it stand, since
+ * everything will be reevaluated. */
+ if (ofproto && ofproto->port_poll_errno != ENOBUFS) {
+ sset_add(&ofproto->port_poll_set, devname);
+ ofproto->port_poll_errno = 0;
+ }
+ } else if (!ofproto) {
+ /* The port was added, but we don't know with which
+ * ofproto we should associate it. Delete it. */
+ dpif_port_del(backer->dpif, port.port_no);
+ } else {
+ struct ofport_dpif *ofport;
+
+ ofport = ofport_dpif_cast(shash_find_data(
+ &ofproto->up.port_by_name, devname));
+ if (ofport
+ && ofport->odp_port != port.port_no
+ && !odp_port_to_ofport(backer, port.port_no))
+ {
+ /* 'ofport''s datapath port number has changed from
+ * 'ofport->odp_port' to 'port.port_no'. Update our internal data
+ * structures to match. */
+ ovs_rwlock_wrlock(&backer->odp_to_ofport_lock);
+ hmap_remove(&backer->odp_to_ofport_map, &ofport->odp_port_node);
+ ofport->odp_port = port.port_no;
+ hmap_insert(&backer->odp_to_ofport_map, &ofport->odp_port_node,
+ hash_odp_port(port.port_no));
+ ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
+ backer->need_revalidate = REV_RECONFIGURE;
+ }
+ }
+ dpif_port_destroy(&port);
+}
+
+/* Propagate 'error' to all ofprotos based on 'backer'. */
+static void
+process_dpif_port_error(struct dpif_backer *backer, int error)
+{
+ struct ofproto_dpif *ofproto;
+
+ HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
+ if (ofproto->backer == backer) {
+ sset_clear(&ofproto->port_poll_set);
+ ofproto->port_poll_errno = error;
}
- work += retval;
}
+}
+
+static int
+dpif_backer_run_fast(struct dpif_backer *backer)
+{
+ handle_upcalls(backer);
return 0;
}
return 0;
}
- return dpif_backer_run_fast(backer, FLOW_MISS_MAX_BATCH);
+ return dpif_backer_run_fast(backer);
}
static void
run_fast_rl(void)
{
static long long int port_rl = LLONG_MIN;
- static unsigned int backer_rl = 0;
if (time_msec() >= port_rl) {
struct ofproto_dpif *ofproto;
- struct ofport_dpif *ofport;
HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
-
- HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
- port_run_fast(ofport);
- }
+ run_fast(&ofproto->up);
}
port_rl = time_msec() + 200;
}
-
- /* XXX: We have to be careful not to do too much work in this function. If
- * we call dpif_backer_run_fast() too often, or with too large a batch,
- * performance improves signifcantly, but at a cost. It's possible for the
- * number of flows in the datapath to increase without bound, and for poll
- * loops to take 10s of seconds. The correct solution to this problem,
- * long term, is to separate flow miss handling into it's own thread so it
- * isn't affected by revalidations, and expirations. Until then, this is
- * the best we can do. */
- if (++backer_rl >= 10) {
- struct shash_node *node;
-
- backer_rl = 0;
- SHASH_FOR_EACH (node, &all_dpif_backers) {
- dpif_backer_run_fast(node->data, 1);
- }
- }
}
static void
}
timer_wait(&backer->next_expiration);
+ dpif_wait(backer->dpif);
+ udpif_wait(backer->udpif);
}
\f
/* Basic life-cycle. */
hmap_destroy(&backer->drop_keys);
simap_destroy(&backer->tnl_backers);
+ ovs_rwlock_destroy(&backer->odp_to_ofport_lock);
hmap_destroy(&backer->odp_to_ofport_map);
node = shash_find(&all_dpif_backers, backer->type);
free(backer->type);
shash_delete(&all_dpif_backers, node);
+ udpif_destroy(backer->udpif);
dpif_close(backer->dpif);
ovs_assert(hmap_is_empty(&backer->subfacets));
free(backer);
return error;
}
+ backer->udpif = udpif_create(backer, backer->dpif);
backer->type = xstrdup(type);
backer->governor = NULL;
backer->refcount = 1;
hmap_init(&backer->odp_to_ofport_map);
+ ovs_rwlock_init(&backer->odp_to_ofport_lock);
hmap_init(&backer->drop_keys);
hmap_init(&backer->subfacets);
timer_set_duration(&backer->next_expiration, 1000);
backer->need_revalidate = 0;
simap_init(&backer->tnl_backers);
- tag_set_init(&backer->revalidate_set);
backer->recv_set_enable = !ofproto_get_flow_restore_wait();
*backerp = backer;
close_dpif_backer(backer);
return error;
}
+ udpif_recv_set(backer->udpif, n_handler_threads,
+ backer->recv_set_enable);
+ backer->n_handler_threads = n_handler_threads;
backer->max_n_subfacet = 0;
backer->created = time_msec();
{
struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
struct shash_node *node, *next;
- odp_port_t max_ports;
+ uint32_t max_ports;
int error;
- int i;
error = open_dpif_backer(ofproto->up.type, &ofproto->backer);
if (error) {
}
max_ports = dpif_get_max_ports(ofproto->backer->dpif);
- ofproto_init_max_ports(ofproto_, u16_to_ofp(MIN(odp_to_u32(max_ports),
- ofp_to_u16(OFPP_MAX))));
+ ofproto_init_max_ports(ofproto_, MIN(max_ports, ofp_to_u16(OFPP_MAX)));
ofproto->netflow = NULL;
ofproto->sflow = NULL;
ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME);
ofproto->mbridge = mbridge_create();
ofproto->has_bonded_bundles = false;
+ ovs_mutex_init(&ofproto->vsp_mutex);
classifier_init(&ofproto->facets);
ofproto->consistency_rl = LLONG_MIN;
- for (i = 0; i < N_TABLES; i++) {
- struct table_dpif *table = &ofproto->tables[i];
-
- table->catchall_table = NULL;
- table->other_table = NULL;
- table->basis = random_uint32();
- }
-
- list_init(&ofproto->completions);
+ guarded_list_init(&ofproto->flow_mods);
+ guarded_list_init(&ofproto->pins);
ofproto_dpif_unixctl_init();
return error;
}
- *rulep = rule_dpif_lookup_in_table(ofproto, &fm.match.flow, NULL,
- TBL_INTERNAL);
- ovs_assert(*rulep != NULL);
+ if (rule_dpif_lookup_in_table(ofproto, &fm.match.flow, NULL, TBL_INTERNAL,
+ rulep)) {
+ rule_dpif_unref(*rulep);
+ } else {
+ NOT_REACHED();
+ }
return 0;
}
return error;
}
-static void
-complete_operations(struct ofproto_dpif *ofproto)
-{
- struct dpif_completion *c, *next;
-
- LIST_FOR_EACH_SAFE (c, next, list_node, &ofproto->completions) {
- ofoperation_complete(c->op, 0);
- list_remove(&c->list_node);
- free(c);
- }
-}
-
static void
destruct(struct ofproto *ofproto_)
{
struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
struct rule_dpif *rule, *next_rule;
+ struct ofputil_packet_in *pin, *next_pin;
+ struct ofputil_flow_mod *fm, *next_fm;
+ struct facet *facet, *next_facet;
+ struct list flow_mods, pins;
+ struct cls_cursor cursor;
struct oftable *table;
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
+ cls_cursor_init(&cursor, &ofproto->facets, NULL);
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
+ CLS_CURSOR_FOR_EACH_SAFE (facet, next_facet, cr, &cursor) {
+ facet_remove(facet);
+ }
+
ofproto->backer->need_revalidate = REV_RECONFIGURE;
+ ovs_rwlock_wrlock(&xlate_rwlock);
xlate_remove_ofproto(ofproto);
+ ovs_rwlock_unlock(&xlate_rwlock);
+
+ /* Discard any flow_miss_batches queued up for 'ofproto', avoiding a
+ * use-after-free error. */
+ udpif_revalidate(ofproto->backer->udpif);
hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node);
- complete_operations(ofproto);
OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) {
struct cls_cursor cursor;
+ ovs_rwlock_wrlock(&table->cls.rwlock);
cls_cursor_init(&cursor, &table->cls, NULL);
CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) {
- ofproto_rule_destroy(&rule->up);
+ ofproto_rule_delete(&ofproto->up, &table->cls, &rule->up);
}
+ ovs_rwlock_unlock(&table->cls.rwlock);
}
+ guarded_list_pop_all(&ofproto->flow_mods, &flow_mods);
+ LIST_FOR_EACH_SAFE (fm, next_fm, list_node, &flow_mods) {
+ list_remove(&fm->list_node);
+ free(fm->ofpacts);
+ free(fm);
+ }
+ guarded_list_destroy(&ofproto->flow_mods);
+
+ guarded_list_pop_all(&ofproto->pins, &pins);
+ LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
+ list_remove(&pin->list_node);
+ free(CONST_CAST(void *, pin->packet));
+ free(pin);
+ }
+ guarded_list_destroy(&ofproto->pins);
+
mbridge_unref(ofproto->mbridge);
netflow_destroy(ofproto->netflow);
sset_destroy(&ofproto->ghost_ports);
sset_destroy(&ofproto->port_poll_set);
+ ovs_mutex_destroy(&ofproto->vsp_mutex);
+
close_dpif_backer(ofproto->backer);
}
run_fast(struct ofproto *ofproto_)
{
struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+ struct ofputil_packet_in *pin, *next_pin;
+ struct ofputil_flow_mod *fm, *next_fm;
+ struct list flow_mods, pins;
struct ofport_dpif *ofport;
/* Do not perform any periodic activity required by 'ofproto' while
return 0;
}
+ guarded_list_pop_all(&ofproto->flow_mods, &flow_mods);
+ LIST_FOR_EACH_SAFE (fm, next_fm, list_node, &flow_mods) {
+ int error = ofproto_flow_mod(&ofproto->up, fm);
+ if (error && !VLOG_DROP_WARN(&rl)) {
+ VLOG_WARN("learning action failed to modify flow table (%s)",
+ ofperr_get_name(error));
+ }
+
+ list_remove(&fm->list_node);
+ free(fm->ofpacts);
+ free(fm);
+ }
+
+ guarded_list_pop_all(&ofproto->pins, &pins);
+ LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
+ connmgr_send_packet_in(ofproto->up.connmgr, pin);
+ list_remove(&pin->list_node);
+ free(CONST_CAST(void *, pin->packet));
+ free(pin);
+ }
+
HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
port_run_fast(ofport);
}
struct ofbundle *bundle;
int error;
- if (!clogged) {
- complete_operations(ofproto);
- }
-
if (mbridge_need_revalidate(ofproto->mbridge)) {
ofproto->backer->need_revalidate = REV_RECONFIGURE;
- mac_learning_flush(ofproto->ml, NULL);
+ ovs_rwlock_wrlock(&ofproto->ml->rwlock);
+ mac_learning_flush(ofproto->ml);
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
}
/* Do not perform any periodic activity below required by 'ofproto' while
if (ofproto->sflow) {
dpif_sflow_run(ofproto->sflow);
}
+ if (ofproto->ipfix) {
+ dpif_ipfix_run(ofproto->ipfix);
+ }
HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
port_run(ofport);
}
stp_run(ofproto);
- mac_learning_run(ofproto->ml, &ofproto->backer->revalidate_set);
+ ovs_rwlock_wrlock(&ofproto->ml->rwlock);
+ if (mac_learning_run(ofproto->ml)) {
+ ofproto->backer->need_revalidate = REV_MAC_LEARNING;
+ }
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
/* Check the consistency of a random facet, to aid debugging. */
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
if (time_msec() >= ofproto->consistency_rl
&& !classifier_is_empty(&ofproto->facets)
&& !ofproto->backer->need_revalidate) {
hmap_node);
facet = CONTAINER_OF(cr, struct facet, cr);
- if (!tag_set_intersects(&ofproto->backer->revalidate_set,
- facet->xout.tags)) {
- if (!facet_check_consistency(facet)) {
- ofproto->backer->need_revalidate = REV_INCONSISTENCY;
- }
+ if (!facet_check_consistency(facet)) {
+ ofproto->backer->need_revalidate = REV_INCONSISTENCY;
}
}
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
return 0;
}
struct ofport_dpif *ofport;
struct ofbundle *bundle;
- if (!clogged && !list_is_empty(&ofproto->completions)) {
- poll_immediate_wake();
- }
-
if (ofproto_get_flow_restore_wait()) {
return;
}
- dpif_wait(ofproto->backer->dpif);
- dpif_recv_wait(ofproto->backer->dpif);
if (ofproto->sflow) {
dpif_sflow_wait(ofproto->sflow);
}
- if (!tag_set_is_empty(&ofproto->backer->revalidate_set)) {
- poll_immediate_wake();
+ if (ofproto->ipfix) {
+ dpif_ipfix_wait(ofproto->ipfix);
}
HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
port_wait(ofport);
if (ofproto->netflow) {
netflow_wait(ofproto->netflow);
}
+ ovs_rwlock_rdlock(&ofproto->ml->rwlock);
mac_learning_wait(ofproto->ml);
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
stp_wait(ofproto);
if (ofproto->backer->need_revalidate) {
/* Shouldn't happen, but if it does just go around again. */
size_t n_subfacets = 0;
struct facet *facet;
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
simap_increase(usage, "facets", classifier_count(&ofproto->facets));
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
cls_cursor_init(&cursor, &ofproto->facets, NULL);
CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
n_subfacets += list_size(&facet->subfacets);
}
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
simap_increase(usage, "subfacets", n_subfacets);
}
port->bundle = NULL;
port->cfm = NULL;
port->bfd = NULL;
- port->tag = tag_create_random();
port->may_enable = true;
port->stp_port = NULL;
port->stp_state = STP_DISABLED;
port->is_tunnel = false;
port->peer = NULL;
- hmap_init(&port->priorities);
+ port->qdscp = NULL;
+ port->n_qdscp = 0;
port->realdev_ofp_port = 0;
port->vlandev_vid = 0;
port->carrier_seq = netdev_get_carrier_resets(netdev);
return EBUSY;
}
+ ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
hmap_insert(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node,
hash_odp_port(port->odp_port));
+ ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
}
dpif_port_destroy(&dpif_port);
const char *dp_port_name;
ofproto->backer->need_revalidate = REV_RECONFIGURE;
+ ovs_rwlock_wrlock(&xlate_rwlock);
xlate_ofport_remove(port);
+ ovs_rwlock_unlock(&xlate_rwlock);
dp_port_name = netdev_vport_get_dpif_port(port->up.netdev, namebuf,
sizeof namebuf);
}
if (port->odp_port != ODPP_NONE && !port->is_tunnel) {
+ ovs_rwlock_wrlock(&ofproto->backer->odp_to_ofport_lock);
hmap_remove(&ofproto->backer->odp_to_ofport_map, &port->odp_port_node);
+ ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
}
tnl_port_del(port);
dpif_sflow_del_port(ofproto->sflow, port->odp_port);
}
- ofport_clear_priorities(port);
- hmap_destroy(&port->priorities);
+ free(port->qdscp);
}
static void
cfm_set_netdev(port->cfm, port->up.netdev);
}
+ if (port->bfd) {
+ bfd_set_netdev(port->bfd, port->up.netdev);
+ }
+
if (port->is_tunnel && tnl_port_reconfigure(port, port->up.netdev,
port->odp_port)) {
ofproto_dpif_cast(port->up.ofproto)->backer->need_revalidate =
{
struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
struct dpif_ipfix *di = ofproto->ipfix;
+ bool has_options = bridge_exporter_options || flow_exporters_options;
- if (bridge_exporter_options || flow_exporters_options) {
- if (!di) {
- di = ofproto->ipfix = dpif_ipfix_create();
- }
+ if (has_options && !di) {
+ di = ofproto->ipfix = dpif_ipfix_create();
+ }
+
+ if (di) {
+ /* Call set_options in any case to cleanly flush the flow
+ * caches in the last exporters that are to be destroyed. */
dpif_ipfix_set_options(
di, bridge_exporter_options, flow_exporters_options,
n_flow_exporters_options);
- } else {
- if (di) {
+
+ if (!has_options) {
dpif_ipfix_unref(di);
ofproto->ipfix = NULL;
}
}
+
return 0;
}
struct bfd *old;
old = ofport->bfd;
- ofport->bfd = bfd_configure(old, netdev_get_name(ofport->up.netdev), cfg);
+ ofport->bfd = bfd_configure(old, netdev_get_name(ofport->up.netdev),
+ cfg, ofport->up.netdev);
if (ofport->bfd != old) {
ofproto->backer->need_revalidate = REV_RECONFIGURE;
}
set_stp_port(ofport, NULL);
}
- stp_destroy(ofproto->stp);
+ stp_unref(ofproto->stp);
ofproto->stp = NULL;
}
if (stp_learn_in_state(ofport->stp_state)
!= stp_learn_in_state(state)) {
/* xxx Learning action flows should also be flushed. */
- mac_learning_flush(ofproto->ml,
- &ofproto->backer->revalidate_set);
+ ovs_rwlock_wrlock(&ofproto->ml->rwlock);
+ mac_learning_flush(ofproto->ml);
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
}
fwd_change = stp_forward_in_state(ofport->stp_state)
!= stp_forward_in_state(state);
}
if (stp_check_and_reset_fdb_flush(ofproto->stp)) {
- mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set);
+ ovs_rwlock_wrlock(&ofproto->ml->rwlock);
+ mac_learning_flush(ofproto->ml);
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
}
}
}
poll_timer_wait(1000);
}
}
-
-/* Returns true if STP should process 'flow'. Sets fields in 'wc' that
- * were used to make the determination.*/
-bool
-stp_should_process_flow(const struct flow *flow, struct flow_wildcards *wc)
-{
- memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
- return eth_addr_equals(flow->dl_dst, eth_addr_stp);
-}
-
-void
-stp_process_packet(const struct ofport_dpif *ofport,
- const struct ofpbuf *packet)
-{
- struct ofpbuf payload = *packet;
- struct eth_header *eth = payload.data;
- struct stp_port *sp = ofport->stp_port;
-
- /* Sink packets on ports that have STP disabled when the bridge has
- * STP enabled. */
- if (!sp || stp_port_get_state(sp) == STP_DISABLED) {
- return;
- }
-
- /* Trim off padding on payload. */
- if (payload.size > ntohs(eth->eth_type) + ETH_HEADER_LEN) {
- payload.size = ntohs(eth->eth_type) + ETH_HEADER_LEN;
- }
-
- if (ofpbuf_try_pull(&payload, ETH_HEADER_LEN + LLC_HEADER_LEN)) {
- stp_received_bpdu(sp, payload.data, payload.size);
- }
-}
\f
-int
-ofproto_dpif_queue_to_priority(const struct ofproto_dpif *ofproto,
- uint32_t queue_id, uint32_t *priority)
-{
- return dpif_queue_to_priority(ofproto->backer->dpif, queue_id, priority);
-}
-
-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;
-}
-
-bool
-ofproto_dpif_dscp_from_priority(const struct ofport_dpif *ofport,
- uint32_t priority, uint8_t *dscp)
-{
- struct priority_to_dscp *pdscp = get_priority(ofport, priority);
- *dscp = pdscp ? pdscp->dscp : 0;
- return pdscp != 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,
+set_queues(struct ofport *ofport_, const struct ofproto_port_queue *qdscp,
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->backer->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->backer->need_revalidate = REV_RECONFIGURE;
- }
-
- if (pdscp->dscp != dscp) {
- pdscp->dscp = dscp;
- ofproto->backer->need_revalidate = REV_RECONFIGURE;
- }
-
- hmap_insert(&new, &pdscp->hmap_node, hash_int(pdscp->priority, 0));
- }
-
- if (!hmap_is_empty(&ofport->priorities)) {
- ofport_clear_priorities(ofport);
+ if (ofport->n_qdscp != n_qdscp
+ || (n_qdscp && memcmp(ofport->qdscp, qdscp,
+ n_qdscp * sizeof *qdscp))) {
ofproto->backer->need_revalidate = REV_RECONFIGURE;
+ free(ofport->qdscp);
+ ofport->qdscp = n_qdscp
+ ? xmemdup(qdscp, n_qdscp * sizeof *qdscp)
+ : NULL;
+ ofport->n_qdscp = n_qdscp;
}
- hmap_swap(&new, &ofport->priorities);
- hmap_destroy(&new);
-
return 0;
}
\f
struct mac_entry *mac, *next_mac;
ofproto->backer->need_revalidate = REV_RECONFIGURE;
+ ovs_rwlock_wrlock(&ml->rwlock);
LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
if (mac->port.p == bundle) {
if (all_ofprotos) {
if (o != ofproto) {
struct mac_entry *e;
- e = mac_learning_lookup(o->ml, mac->mac, mac->vlan,
- NULL);
+ ovs_rwlock_wrlock(&o->ml->rwlock);
+ e = mac_learning_lookup(o->ml, mac->mac, mac->vlan);
if (e) {
mac_learning_expire(o->ml, e);
}
+ ovs_rwlock_unlock(&o->ml->rwlock);
}
}
}
mac_learning_expire(ml, mac);
}
}
+ ovs_rwlock_unlock(&ml->rwlock);
}
static struct ofbundle *
if (port->bundle != bundle) {
bundle->ofproto->backer->need_revalidate = REV_RECONFIGURE;
if (port->bundle) {
- bundle_del_port(port);
+ bundle_remove(&port->up);
}
port->bundle = bundle;
ofproto = bundle->ofproto;
mbridge_unregister_bundle(ofproto->mbridge, bundle->aux);
+ ovs_rwlock_wrlock(&xlate_rwlock);
xlate_bundle_remove(bundle);
+ ovs_rwlock_unlock(&xlate_rwlock);
LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) {
bundle_del_port(port);
bundle_send_learning_packets(struct ofbundle *bundle)
{
struct ofproto_dpif *ofproto = bundle->ofproto;
+ struct ofpbuf *learning_packet;
int error, n_packets, n_errors;
struct mac_entry *e;
+ struct list packets;
- error = n_packets = n_errors = 0;
+ list_init(&packets);
+ ovs_rwlock_rdlock(&ofproto->ml->rwlock);
LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
if (e->port.p != bundle) {
- struct ofpbuf *learning_packet;
- struct ofport_dpif *port;
void *port_void;
- int ret;
- /* The assignment to "port" is unnecessary but makes "grep"ing for
- * struct ofport_dpif more effective. */
learning_packet = bond_compose_learning_packet(bundle->bond,
e->mac, e->vlan,
&port_void);
- port = port_void;
- ret = send_packet(port, learning_packet);
- ofpbuf_delete(learning_packet);
- if (ret) {
- error = ret;
- n_errors++;
- }
- n_packets++;
+ learning_packet->private_p = port_void;
+ list_push_back(&packets, &learning_packet->list_node);
+ }
+ }
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
+
+ error = n_packets = n_errors = 0;
+ LIST_FOR_EACH (learning_packet, list_node, &packets) {
+ int ret;
+
+ ret = send_packet(learning_packet->private_p, learning_packet);
+ if (ret) {
+ error = ret;
+ n_errors++;
}
+ n_packets++;
}
+ ofpbuf_list_delete(&packets);
if (n_errors) {
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
bond_slave_set_may_enable(bundle->bond, port, port->may_enable);
}
- bond_run(bundle->bond, &bundle->ofproto->backer->revalidate_set,
- lacp_status(bundle->lacp));
+ if (bond_run(bundle->bond, lacp_status(bundle->lacp))) {
+ bundle->ofproto->backer->need_revalidate = REV_BOND;
+ }
+
if (bond_should_send_learning_packets(bundle->bond)) {
bundle_send_learning_packets(bundle);
}
set_flood_vlans(struct ofproto *ofproto_, unsigned long *flood_vlans)
{
struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+ ovs_rwlock_wrlock(&ofproto->ml->rwlock);
if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) {
- mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set);
+ mac_learning_flush(ofproto->ml);
}
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
return 0;
}
size_t max_entries)
{
struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+ ovs_rwlock_wrlock(&ofproto->ml->rwlock);
mac_learning_set_idle_time(ofproto->ml, idle_time);
mac_learning_set_max_entries(ofproto->ml, max_entries);
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
}
\f
/* Ports. */
{
const struct ofproto_dpif *ofproto;
struct dpif_backer *backer;
- const char *peer_name;
+ char *peer_name;
if (!netdev_vport_is_patch(ofport->up.netdev)) {
return;
HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
struct ofport *peer_ofport;
struct ofport_dpif *peer;
- const char *peer_peer;
+ char *peer_peer;
if (ofproto->backer != backer) {
continue;
ofport->peer = peer;
ofport->peer->peer = ofport;
}
+ free(peer_peer);
- return;
+ break;
}
+ free(peer_name);
}
static void
long long int carrier_seq = netdev_get_carrier_resets(ofport->up.netdev);
bool carrier_changed = carrier_seq != ofport->carrier_seq;
bool enable = netdev_get_carrier(ofport->up.netdev);
+ bool cfm_enable = false;
+ bool bfd_enable = false;
ofport->carrier_seq = carrier_seq;
int cfm_opup = cfm_get_opup(ofport->cfm);
cfm_run(ofport->cfm);
- enable = enable && !cfm_get_fault(ofport->cfm);
+ cfm_enable = !cfm_get_fault(ofport->cfm);
if (cfm_opup >= 0) {
- enable = enable && cfm_opup;
+ cfm_enable = cfm_enable && cfm_opup;
}
}
if (ofport->bfd) {
bfd_run(ofport->bfd);
- enable = enable && bfd_forwarding(ofport->bfd);
+ bfd_enable = bfd_forwarding(ofport->bfd);
+ }
+
+ if (ofport->bfd || ofport->cfm) {
+ enable = enable && (cfm_enable || bfd_enable);
}
if (ofport->bundle) {
sset_find_and_delete(&ofproto->ghost_ports,
netdev_get_name(ofport->up.netdev));
ofproto->backer->need_revalidate = REV_RECONFIGURE;
- if (!ofport->is_tunnel) {
+ if (!ofport->is_tunnel && !netdev_vport_is_patch(ofport->up.netdev)) {
error = dpif_port_del(ofproto->backer->dpif, ofport->odp_port);
if (!error) {
/* The caller is going to close ofport->up.netdev. If this is a
\f
/* Upcall handling. */
-/* Flow miss batching.
- *
- * Some dpifs implement operations faster when you hand them off in a batch.
- * To allow batching, "struct flow_miss" queues the dpif-related work needed
- * for a given flow. Each "struct flow_miss" corresponds to sending one or
- * more packets, plus possibly installing the flow in the dpif.
- *
- * So far we only batch the operations that affect flow setup time the most.
- * It's possible to batch more than that, but the benefit might be minimal. */
-struct flow_miss {
- struct hmap_node hmap_node;
- struct ofproto_dpif *ofproto;
- struct flow flow;
- enum odp_key_fitness key_fitness;
- const struct nlattr *key;
- size_t key_len;
- struct list packets;
- enum dpif_upcall_type upcall_type;
-};
-
struct flow_miss_op {
struct dpif_op dpif_op;
struct subfacet *subfacet;
};
-/* Sends an OFPT_PACKET_IN message for 'packet' of type OFPR_NO_MATCH to each
- * OpenFlow controller as necessary according to their individual
- * configurations. */
-static void
-send_packet_in_miss(struct ofproto_dpif *ofproto, const struct ofpbuf *packet,
- const struct flow *flow)
-{
- struct ofputil_packet_in pin;
-
- pin.packet = packet->data;
- pin.packet_len = packet->size;
- pin.reason = OFPR_NO_MATCH;
- pin.controller_id = 0;
-
- pin.table_id = 0;
- pin.cookie = 0;
-
- pin.send_len = 0; /* not used for flow table misses */
-
- flow_get_metadata(flow, &pin.fmd);
-
- connmgr_send_packet_in(ofproto->up.connmgr, &pin);
-}
-
-static struct flow_miss *
-flow_miss_find(struct hmap *todo, const struct ofproto_dpif *ofproto,
- const struct flow *flow, uint32_t hash)
-{
- struct flow_miss *miss;
-
- HMAP_FOR_EACH_WITH_HASH (miss, hmap_node, hash, todo) {
- if (miss->ofproto == ofproto && flow_equal(&miss->flow, flow)) {
- return miss;
- }
- }
-
- return NULL;
-}
-
-/* Partially Initializes 'op' as an "execute" operation for 'miss' and
- * 'packet'. The caller must initialize op->actions and op->actions_len. If
- * 'miss' is associated with a subfacet the caller must also initialize the
- * returned op->subfacet, and if anything needs to be freed after processing
- * the op, the caller must initialize op->garbage also. */
-static void
-init_flow_miss_execute_op(struct flow_miss *miss, struct ofpbuf *packet,
- struct flow_miss_op *op)
-{
- if (miss->flow.in_port.ofp_port
- != vsp_realdev_to_vlandev(miss->ofproto, miss->flow.in_port.ofp_port,
- miss->flow.vlan_tci)) {
- /* This packet was received on a VLAN splinter port. We
- * added a VLAN to the packet to make the packet resemble
- * the flow, but the actions were composed assuming that
- * the packet contained no VLAN. So, we must remove the
- * VLAN header from the packet before trying to execute the
- * actions. */
- eth_pop_vlan(packet);
- }
-
- op->subfacet = NULL;
- op->xout_garbage = false;
- op->dpif_op.type = DPIF_OP_EXECUTE;
- op->dpif_op.u.execute.key = miss->key;
- op->dpif_op.u.execute.key_len = miss->key_len;
- op->dpif_op.u.execute.packet = packet;
- ofpbuf_use_stack(&op->mask, &op->maskbuf, sizeof op->maskbuf);
-}
-
-/* Helper for handle_flow_miss_without_facet() and
- * handle_flow_miss_with_facet(). */
-static void
-handle_flow_miss_common(struct ofproto_dpif *ofproto, struct ofpbuf *packet,
- const struct flow *flow, bool fail_open)
-{
- if (fail_open) {
- /*
- * Extra-special case for fail-open mode.
- *
- * We are in fail-open mode and the packet matched the fail-open
- * rule, but we are connected to a controller too. We should send
- * the packet up to the controller in the hope that it will try to
- * set up a flow and thereby allow us to exit fail-open.
- *
- * See the top-level comment in fail-open.c for more information.
- */
- send_packet_in_miss(ofproto, packet, flow);
- }
-}
-
/* Figures out whether a flow that missed in 'ofproto', whose details are in
* 'miss' masked by 'wc', is likely to be worth tracking in detail in userspace
* and (usually) installing a datapath flow. The answer is usually "yes" (a
* flows we impose some heuristics to decide which flows are likely to be worth
* tracking. */
static bool
-flow_miss_should_make_facet(struct flow_miss *miss, struct flow_wildcards *wc)
+flow_miss_should_make_facet(struct flow_miss *miss)
{
struct dpif_backer *backer = miss->ofproto->backer;
uint32_t hash;
backer->governor = governor_create();
}
- hash = flow_hash_in_wildcards(&miss->flow, wc, 0);
+ hash = flow_hash_in_wildcards(&miss->flow, &miss->xout.wc, 0);
return governor_should_install_flow(backer->governor, hash,
list_size(&miss->packets));
}
-/* Handles 'miss' without creating a facet or subfacet or creating any datapath
- * flow. 'miss->flow' must have matched 'rule' and been xlated into 'xout'.
- * May add an "execute" operation to 'ops' and increment '*n_ops'. */
-static void
-handle_flow_miss_without_facet(struct rule_dpif *rule, struct xlate_out *xout,
- struct flow_miss *miss,
- struct flow_miss_op *ops, size_t *n_ops)
-{
- struct ofpbuf *packet;
-
- LIST_FOR_EACH (packet, list_node, &miss->packets) {
-
- COVERAGE_INC(facet_suppress);
-
- handle_flow_miss_common(miss->ofproto, packet, &miss->flow,
- rule->up.cr.priority == FAIL_OPEN_PRIORITY);
-
- if (xout->slow) {
- struct xlate_in xin;
-
- xlate_in_init(&xin, miss->ofproto, &miss->flow, rule, 0, packet);
- xlate_actions_for_side_effects(&xin);
- }
-
- if (xout->odp_actions.size) {
- struct flow_miss_op *op = &ops[*n_ops];
- struct dpif_execute *execute = &op->dpif_op.u.execute;
-
- init_flow_miss_execute_op(miss, packet, op);
- xlate_out_copy(&op->xout, xout);
- execute->actions = op->xout.odp_actions.data;
- execute->actions_len = op->xout.odp_actions.size;
- op->xout_garbage = true;
-
- (*n_ops)++;
- }
- }
-}
-
/* Handles 'miss', which matches 'facet'. May add any required datapath
* operations to 'ops', incrementing '*n_ops' for each new op.
*
- * All of the packets in 'miss' are considered to have arrived at time 'now'.
- * This is really important only for new facets: if we just called time_msec()
- * here, then the new subfacet or its packets could look (occasionally) as
- * though it was used some time after the facet was used. That can make a
- * one-packet flow look like it has a nonzero duration, which looks odd in
- * e.g. NetFlow statistics.
- *
- * If non-null, 'stats' will be folded into 'facet'. */
+ * All of the packets in 'miss' are considered to have arrived at time
+ * 'miss->stats.used'. This is really important only for new facets: if we
+ * just called time_msec() here, then the new subfacet or its packets could
+ * look (occasionally) as though it was used some time after the facet was
+ * used. That can make a one-packet flow look like it has a nonzero duration,
+ * which looks odd in e.g. NetFlow statistics. */
static void
handle_flow_miss_with_facet(struct flow_miss *miss, struct facet *facet,
- long long int now, struct dpif_flow_stats *stats,
struct flow_miss_op *ops, size_t *n_ops)
{
enum subfacet_path want_path;
struct subfacet *subfacet;
- struct ofpbuf *packet;
-
- want_path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH;
- LIST_FOR_EACH (packet, list_node, &miss->packets) {
- struct flow_miss_op *op = &ops[*n_ops];
+ facet->packet_count += miss->stats.n_packets;
+ facet->prev_packet_count += miss->stats.n_packets;
+ facet->byte_count += miss->stats.n_bytes;
+ facet->prev_byte_count += miss->stats.n_bytes;
- handle_flow_miss_common(miss->ofproto, packet, &miss->flow,
- facet->fail_open);
-
- if (want_path != SF_FAST_PATH) {
- struct rule_dpif *rule;
- struct xlate_in xin;
-
- rule = rule_dpif_lookup(facet->ofproto, &facet->flow, NULL);
- xlate_in_init(&xin, facet->ofproto, &miss->flow, rule, 0, packet);
- xlate_actions_for_side_effects(&xin);
- }
-
- if (facet->xout.odp_actions.size) {
- struct dpif_execute *execute = &op->dpif_op.u.execute;
-
- init_flow_miss_execute_op(miss, packet, op);
- execute->actions = facet->xout.odp_actions.data,
- execute->actions_len = facet->xout.odp_actions.size;
- (*n_ops)++;
- }
- }
+ want_path = facet->xout.slow ? SF_SLOW_PATH : SF_FAST_PATH;
/* Don't install the flow if it's the result of the "userspace"
* action for an already installed facet. This can occur when a
* be rejected as overlapping by the datapath. */
if (miss->upcall_type == DPIF_UC_ACTION
&& !list_is_empty(&facet->subfacets)) {
- if (stats) {
- facet->used = MAX(facet->used, stats->used);
- facet->packet_count += stats->n_packets;
- facet->byte_count += stats->n_bytes;
- facet->tcp_flags |= stats->tcp_flags;
- }
return;
}
- subfacet = subfacet_create(facet, miss, now);
- if (stats) {
- subfacet_update_stats(subfacet, stats);
- }
-
- if (miss->upcall_type == DPIF_UC_MISS || subfacet->path != want_path) {
+ subfacet = subfacet_create(facet, miss);
+ if (subfacet->path != want_path) {
struct flow_miss_op *op = &ops[(*n_ops)++];
struct dpif_flow_put *put = &op->dpif_op.u.flow_put;
op->xout_garbage = false;
op->dpif_op.type = DPIF_OP_FLOW_PUT;
op->subfacet = subfacet;
- put->flags = DPIF_FP_CREATE | DPIF_FP_MODIFY;
+ put->flags = DPIF_FP_CREATE;
put->key = miss->key;
put->key_len = miss->key_len;
put->mask = op->mask.data;
handle_flow_miss(struct flow_miss *miss, struct flow_miss_op *ops,
size_t *n_ops)
{
- struct ofproto_dpif *ofproto = miss->ofproto;
- struct dpif_flow_stats stats__;
- struct dpif_flow_stats *stats = &stats__;
- struct ofpbuf *packet;
struct facet *facet;
- long long int now;
- now = time_msec();
- memset(stats, 0, sizeof *stats);
- stats->used = now;
- LIST_FOR_EACH (packet, list_node, &miss->packets) {
- stats->tcp_flags |= packet_get_tcp_flags(packet, &miss->flow);
- stats->n_bytes += packet->size;
- stats->n_packets++;
- }
+ miss->ofproto->n_missed += list_size(&miss->packets);
- facet = facet_lookup_valid(ofproto, &miss->flow);
+ facet = facet_lookup_valid(miss->ofproto, &miss->flow);
if (!facet) {
- struct flow_wildcards wc;
- struct rule_dpif *rule;
- struct xlate_out xout;
- struct xlate_in xin;
-
- flow_wildcards_init_catchall(&wc);
- rule = rule_dpif_lookup(ofproto, &miss->flow, &wc);
- rule_credit_stats(rule, stats);
-
- xlate_in_init(&xin, ofproto, &miss->flow, rule, stats->tcp_flags,
- NULL);
- xin.resubmit_stats = stats;
- xin.may_learn = true;
- xlate_actions(&xin, &xout);
- flow_wildcards_or(&xout.wc, &xout.wc, &wc);
-
/* There does not exist a bijection between 'struct flow' and datapath
* flow keys with fitness ODP_FIT_TO_LITTLE. This breaks a fundamental
* assumption used throughout the facet and subfacet handling code.
* Since we have to handle these misses in userspace anyway, we simply
* skip facet creation, avoiding the problem altogether. */
if (miss->key_fitness == ODP_FIT_TOO_LITTLE
- || !flow_miss_should_make_facet(miss, &xout.wc)) {
- handle_flow_miss_without_facet(rule, &xout, miss, ops, n_ops);
+ || !flow_miss_should_make_facet(miss)) {
return;
}
- facet = facet_create(miss, rule, &xout, stats);
- stats = NULL;
+ facet = facet_create(miss);
}
- handle_flow_miss_with_facet(miss, facet, now, stats, ops, n_ops);
+ handle_flow_miss_with_facet(miss, facet, ops, n_ops);
}
static struct drop_key *
}
hmap_remove(&backer->drop_keys, &drop_key->hmap_node);
- free(drop_key->key);
- free(drop_key);
- }
-}
-
-/* Given a datpath, packet, and flow metadata ('backer', 'packet', and 'key'
- * respectively), populates 'flow' with the result of odp_flow_key_to_flow().
- * Optionally, if nonnull, populates 'fitnessp' with the fitness of 'flow' as
- * returned by odp_flow_key_to_flow(). Also, optionally populates 'ofproto'
- * with the ofproto_dpif, and 'odp_in_port' with the datapath in_port, that
- * 'packet' ingressed.
- *
- * If 'ofproto' is nonnull, requires 'flow''s in_port to exist. Otherwise sets
- * 'flow''s in_port to OFPP_NONE.
- *
- * This function does post-processing on data returned from
- * odp_flow_key_to_flow() to help make VLAN splinters transparent to the rest
- * of the upcall processing logic. In particular, if the extracted in_port is
- * a VLAN splinter port, it replaces flow->in_port by the "real" port, sets
- * flow->vlan_tci correctly for the VLAN of the VLAN splinter port, and pushes
- * a VLAN header onto 'packet' (if it is nonnull).
- *
- * Similarly, this function also includes some logic to help with tunnels. It
- * may modify 'flow' as necessary to make the tunneling implementation
- * transparent to the upcall processing logic.
- *
- * Returns 0 if successful, ENODEV if the parsed flow has no associated ofport,
- * or some other positive errno if there are other problems. */
-static int
-ofproto_receive(const struct dpif_backer *backer, struct ofpbuf *packet,
- const struct nlattr *key, size_t key_len,
- struct flow *flow, enum odp_key_fitness *fitnessp,
- struct ofproto_dpif **ofproto, odp_port_t *odp_in_port)
-{
- const struct ofport_dpif *port;
- enum odp_key_fitness fitness;
- int error = ENODEV;
-
- fitness = odp_flow_key_to_flow(key, key_len, flow);
- if (fitness == ODP_FIT_ERROR) {
- error = EINVAL;
- goto exit;
- }
-
- if (odp_in_port) {
- *odp_in_port = flow->in_port.odp_port;
- }
-
- port = (tnl_port_should_receive(flow)
- ? tnl_port_receive(flow)
- : odp_port_to_ofport(backer, flow->in_port.odp_port));
- flow->in_port.ofp_port = port ? port->up.ofp_port : OFPP_NONE;
- if (!port) {
- goto exit;
- }
-
- /* XXX: Since the tunnel module is not scoped per backer, for a tunnel port
- * it's theoretically possible that we'll receive an ofport belonging to an
- * entirely different datapath. In practice, this can't happen because no
- * platforms has two separate datapaths which each support tunneling. */
- ovs_assert(ofproto_dpif_cast(port->up.ofproto)->backer == backer);
-
- if (vsp_adjust_flow(ofproto_dpif_cast(port->up.ofproto), flow)) {
- if (packet) {
- /* Make the packet resemble the flow, so that it gets sent to
- * an OpenFlow controller properly, so that it looks correct
- * for sFlow, and so that flow_extract() will get the correct
- * vlan_tci if it is called on 'packet'.
- *
- * The allocated space inside 'packet' probably also contains
- * 'key', that is, both 'packet' and 'key' are probably part of
- * a struct dpif_upcall (see the large comment on that
- * structure definition), so pushing data on 'packet' is in
- * general not a good idea since it could overwrite 'key' or
- * free it as a side effect. However, it's OK in this special
- * case because we know that 'packet' is inside a Netlink
- * attribute: pushing 4 bytes will just overwrite the 4-byte
- * "struct nlattr", which is fine since we don't need that
- * header anymore. */
- eth_push_vlan(packet, flow->vlan_tci);
- }
- /* We can't reproduce 'key' from 'flow'. */
- fitness = fitness == ODP_FIT_PERFECT ? ODP_FIT_TOO_MUCH : fitness;
- }
- error = 0;
-
- if (ofproto) {
- *ofproto = ofproto_dpif_cast(port->up.ofproto);
+ drop_key_destroy(drop_key);
}
-exit:
- if (fitnessp) {
- *fitnessp = fitness;
- }
- return error;
+ udpif_drop_key_clear(backer->udpif);
}
static void
-handle_miss_upcalls(struct dpif_backer *backer, struct dpif_upcall *upcalls,
- size_t n_upcalls)
+handle_flow_misses(struct dpif_backer *backer, struct flow_miss_batch *fmb)
{
- struct dpif_upcall *upcall;
+ struct flow_miss_op flow_miss_ops[FLOW_MISS_MAX_BATCH];
+ struct dpif_op *dpif_ops[FLOW_MISS_MAX_BATCH];
struct flow_miss *miss;
- struct flow_miss misses[FLOW_MISS_MAX_BATCH];
- struct flow_miss_op flow_miss_ops[FLOW_MISS_MAX_BATCH * 2];
- struct dpif_op *dpif_ops[FLOW_MISS_MAX_BATCH * 2];
- struct hmap todo;
- int n_misses;
- size_t n_ops;
- size_t i;
-
- if (!n_upcalls) {
- return;
- }
-
- /* Construct the to-do list.
- *
- * This just amounts to extracting the flow from each packet and sticking
- * the packets that have the same flow in the same "flow_miss" structure so
- * that we can process them together. */
- hmap_init(&todo);
- n_misses = 0;
- for (upcall = upcalls; upcall < &upcalls[n_upcalls]; upcall++) {
- struct flow_miss *miss = &misses[n_misses];
- struct flow_miss *existing_miss;
- struct ofproto_dpif *ofproto;
- odp_port_t odp_in_port;
- struct flow flow;
- uint32_t hash;
- int error;
-
- error = ofproto_receive(backer, upcall->packet, upcall->key,
- upcall->key_len, &flow, &miss->key_fitness,
- &ofproto, &odp_in_port);
- if (error == ENODEV) {
- struct drop_key *drop_key;
-
- /* Received packet on datapath port for which we couldn't
- * associate an ofproto. This can happen if a port is removed
- * while traffic is being received. Print a rate-limited message
- * in case it happens frequently. Install a drop flow so
- * that future packets of the flow are inexpensively dropped
- * in the kernel. */
- VLOG_INFO_RL(&rl, "received packet on unassociated datapath port "
- "%"PRIu32, odp_in_port);
-
- drop_key = drop_key_lookup(backer, upcall->key, upcall->key_len);
- if (!drop_key) {
- drop_key = xmalloc(sizeof *drop_key);
- drop_key->key = xmemdup(upcall->key, upcall->key_len);
- drop_key->key_len = upcall->key_len;
-
- hmap_insert(&backer->drop_keys, &drop_key->hmap_node,
- hash_bytes(drop_key->key, drop_key->key_len, 0));
- dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY,
- drop_key->key, drop_key->key_len,
- NULL, 0, NULL, 0, NULL);
- }
- continue;
- }
- if (error) {
- continue;
- }
-
- ofproto->n_missed++;
- flow_extract(upcall->packet, flow.skb_priority, flow.skb_mark,
- &flow.tunnel, &flow.in_port, &miss->flow);
-
- /* Add other packets to a to-do list. */
- hash = flow_hash(&miss->flow, 0);
- existing_miss = flow_miss_find(&todo, ofproto, &miss->flow, hash);
- if (!existing_miss) {
- hmap_insert(&todo, &miss->hmap_node, hash);
- miss->ofproto = ofproto;
- miss->key = upcall->key;
- miss->key_len = upcall->key_len;
- miss->upcall_type = upcall->type;
- list_init(&miss->packets);
-
- n_misses++;
- } else {
- miss = existing_miss;
- }
- list_push_back(&miss->packets, &upcall->packet->list_node);
- }
+ size_t n_ops, i;
/* Process each element in the to-do list, constructing the set of
* operations to batch. */
n_ops = 0;
- HMAP_FOR_EACH (miss, hmap_node, &todo) {
+ HMAP_FOR_EACH (miss, hmap_node, &fmb->misses) {
handle_flow_miss(miss, flow_miss_ops, &n_ops);
}
ovs_assert(n_ops <= ARRAY_SIZE(flow_miss_ops));
subfacet->path = SF_NOT_INSTALLED;
}
-
- /* Free memory. */
- if (flow_miss_ops[i].xout_garbage) {
- xlate_out_uninit(&flow_miss_ops[i].xout);
- }
- }
- hmap_destroy(&todo);
-}
-
-static enum { SFLOW_UPCALL, MISS_UPCALL, BAD_UPCALL, FLOW_SAMPLE_UPCALL,
- IPFIX_UPCALL }
-classify_upcall(const struct dpif_upcall *upcall)
-{
- size_t userdata_len;
- union user_action_cookie cookie;
-
- /* First look at the upcall type. */
- switch (upcall->type) {
- case DPIF_UC_ACTION:
- break;
-
- case DPIF_UC_MISS:
- return MISS_UPCALL;
-
- case DPIF_N_UC_TYPES:
- default:
- VLOG_WARN_RL(&rl, "upcall has unexpected type %"PRIu32, upcall->type);
- return BAD_UPCALL;
- }
-
- /* "action" upcalls need a closer look. */
- if (!upcall->userdata) {
- VLOG_WARN_RL(&rl, "action upcall missing cookie");
- return BAD_UPCALL;
- }
- userdata_len = nl_attr_get_size(upcall->userdata);
- if (userdata_len < sizeof cookie.type
- || userdata_len > sizeof cookie) {
- VLOG_WARN_RL(&rl, "action upcall cookie has unexpected size %zu",
- userdata_len);
- return BAD_UPCALL;
- }
- memset(&cookie, 0, sizeof cookie);
- memcpy(&cookie, nl_attr_get(upcall->userdata), userdata_len);
- if (userdata_len == sizeof cookie.sflow
- && cookie.type == USER_ACTION_COOKIE_SFLOW) {
- return SFLOW_UPCALL;
- } else if (userdata_len == sizeof cookie.slow_path
- && cookie.type == USER_ACTION_COOKIE_SLOW_PATH) {
- return MISS_UPCALL;
- } else if (userdata_len == sizeof cookie.flow_sample
- && cookie.type == USER_ACTION_COOKIE_FLOW_SAMPLE) {
- return FLOW_SAMPLE_UPCALL;
- } else if (userdata_len == sizeof cookie.ipfix
- && cookie.type == USER_ACTION_COOKIE_IPFIX) {
- return IPFIX_UPCALL;
- } else {
- VLOG_WARN_RL(&rl, "invalid user cookie of type %"PRIu16
- " and size %zu", cookie.type, userdata_len);
- return BAD_UPCALL;
}
}
struct flow flow;
odp_port_t odp_in_port;
- if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len,
- &flow, NULL, &ofproto, &odp_in_port)
+ if (xlate_receive(backer, upcall->packet, upcall->key, upcall->key_len,
+ &flow, NULL, &ofproto, &odp_in_port)
|| !ofproto->sflow) {
return;
}
union user_action_cookie cookie;
struct flow flow;
- if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len,
- &flow, NULL, &ofproto, NULL)
+ if (xlate_receive(backer, upcall->packet, upcall->key, upcall->key_len,
+ &flow, NULL, &ofproto, NULL)
|| !ofproto->ipfix) {
return;
}
struct ofproto_dpif *ofproto;
struct flow flow;
- if (ofproto_receive(backer, upcall->packet, upcall->key, upcall->key_len,
- &flow, NULL, &ofproto, NULL)
+ if (xlate_receive(backer, upcall->packet, upcall->key, upcall->key_len,
+ &flow, NULL, &ofproto, NULL)
|| !ofproto->ipfix) {
return;
}
dpif_ipfix_bridge_sample(ofproto->ipfix, upcall->packet, &flow);
}
-static int
-handle_upcalls(struct dpif_backer *backer, unsigned int max_batch)
+static void
+handle_upcalls(struct dpif_backer *backer)
{
- struct dpif_upcall misses[FLOW_MISS_MAX_BATCH];
- struct ofpbuf miss_bufs[FLOW_MISS_MAX_BATCH];
- uint64_t miss_buf_stubs[FLOW_MISS_MAX_BATCH][4096 / 8];
+ struct flow_miss_batch *fmb;
int n_processed;
- int n_misses;
- int i;
-
- ovs_assert(max_batch <= FLOW_MISS_MAX_BATCH);
- n_misses = 0;
- for (n_processed = 0; n_processed < max_batch; n_processed++) {
- struct dpif_upcall *upcall = &misses[n_misses];
- struct ofpbuf *buf = &miss_bufs[n_misses];
- int error;
+ for (n_processed = 0; n_processed < FLOW_MISS_MAX_BATCH; n_processed++) {
+ struct upcall *upcall = upcall_next(backer->udpif);
- ofpbuf_use_stub(buf, miss_buf_stubs[n_misses],
- sizeof miss_buf_stubs[n_misses]);
- error = dpif_recv(backer->dpif, upcall, buf);
- if (error) {
- ofpbuf_uninit(buf);
+ if (!upcall) {
break;
}
- switch (classify_upcall(upcall)) {
- case MISS_UPCALL:
- /* Handle it later. */
- n_misses++;
- break;
-
+ switch (upcall->type) {
case SFLOW_UPCALL:
- handle_sflow_upcall(backer, upcall);
- ofpbuf_uninit(buf);
+ handle_sflow_upcall(backer, &upcall->dpif_upcall);
break;
case FLOW_SAMPLE_UPCALL:
- handle_flow_sample_upcall(backer, upcall);
- ofpbuf_uninit(buf);
+ handle_flow_sample_upcall(backer, &upcall->dpif_upcall);
break;
case IPFIX_UPCALL:
- handle_ipfix_upcall(backer, upcall);
- ofpbuf_uninit(buf);
+ handle_ipfix_upcall(backer, &upcall->dpif_upcall);
break;
case BAD_UPCALL:
- ofpbuf_uninit(buf);
break;
+
+ case MISS_UPCALL:
+ NOT_REACHED();
}
+
+ upcall_destroy(upcall);
}
- /* Handle deferred MISS_UPCALL processing. */
- handle_miss_upcalls(backer, misses, n_misses);
- for (i = 0; i < n_misses; i++) {
- ofpbuf_uninit(&miss_bufs[i]);
+ for (n_processed = 0; n_processed < FLOW_MISS_MAX_BATCH; n_processed++) {
+ struct drop_key *drop_key = drop_key_next(backer->udpif);
+ if (!drop_key) {
+ break;
+ }
+
+ if (!drop_key_lookup(backer, drop_key->key, drop_key->key_len)) {
+ hmap_insert(&backer->drop_keys, &drop_key->hmap_node,
+ hash_bytes(drop_key->key, drop_key->key_len, 0));
+ dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY,
+ drop_key->key, drop_key->key_len,
+ NULL, 0, NULL, 0, NULL);
+ } else {
+ drop_key_destroy(drop_key);
+ }
}
- return n_processed;
+ fmb = flow_miss_batch_next(backer->udpif);
+ if (fmb) {
+ handle_flow_misses(backer, fmb);
+ flow_miss_batch_destroy(fmb);
+ }
}
\f
/* Flow expiration. */
/* Expire OpenFlow flows whose idle_timeout or hard_timeout
* has passed. */
+ ovs_mutex_lock(&ofproto->up.expirable_mutex);
LIST_FOR_EACH_SAFE (rule, next_rule, expirable,
&ofproto->up.expirable) {
rule_expire(rule_dpif_cast(rule));
}
+ ovs_mutex_unlock(&ofproto->up.expirable_mutex);
/* All outstanding data in existing flows has been accounted, so it's a
* good time to do bond rebalancing. */
HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
if (bundle->bond) {
- bond_rebalance(bundle->bond, &backer->revalidate_set);
+ bond_rebalance(bundle->bond);
}
}
}
static void
rule_expire(struct rule_dpif *rule)
{
+ uint16_t idle_timeout, hard_timeout;
long long int now;
uint8_t reason;
- if (rule->up.pending) {
- /* We'll have to expire it later. */
- return;
- }
+ ovs_assert(!rule->up.pending);
+
+ ovs_mutex_lock(&rule->up.timeout_mutex);
+ hard_timeout = rule->up.hard_timeout;
+ idle_timeout = rule->up.idle_timeout;
+ ovs_mutex_unlock(&rule->up.timeout_mutex);
/* Has 'rule' expired? */
now = time_msec();
- if (rule->up.hard_timeout
- && now > rule->up.modified + rule->up.hard_timeout * 1000) {
+ if (hard_timeout && now > rule->up.modified + hard_timeout * 1000) {
reason = OFPRR_HARD_TIMEOUT;
- } else if (rule->up.idle_timeout
- && now > rule->up.used + rule->up.idle_timeout * 1000) {
+ } else if (idle_timeout && now > rule->up.used + idle_timeout * 1000) {
reason = OFPRR_IDLE_TIMEOUT;
} else {
return;
}
COVERAGE_INC(ofproto_dpif_expired);
-
- /* Get rid of the rule. */
ofproto_rule_expire(&rule->up, reason);
}
\f
* The facet will initially have no subfacets. The caller should create (at
* least) one subfacet with subfacet_create(). */
static struct facet *
-facet_create(const struct flow_miss *miss, struct rule_dpif *rule,
- struct xlate_out *xout, struct dpif_flow_stats *stats)
+facet_create(const struct flow_miss *miss)
{
struct ofproto_dpif *ofproto = miss->ofproto;
struct facet *facet;
facet = xzalloc(sizeof *facet);
facet->ofproto = miss->ofproto;
- facet->packet_count = facet->prev_packet_count = stats->n_packets;
- facet->byte_count = facet->prev_byte_count = stats->n_bytes;
- facet->tcp_flags = stats->tcp_flags;
- facet->used = stats->used;
+ facet->used = miss->stats.used;
facet->flow = miss->flow;
facet->learn_rl = time_msec() + 500;
netflow_flow_init(&facet->nf_flow);
netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, facet->used);
- xlate_out_copy(&facet->xout, xout);
+ xlate_out_copy(&facet->xout, &miss->xout);
match_init(&match, &facet->flow, &facet->xout.wc);
cls_rule_init(&facet->cr, &match, OFP_DEFAULT_PRIORITY);
+ ovs_rwlock_wrlock(&ofproto->facets.rwlock);
classifier_insert(&ofproto->facets, &facet->cr);
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
facet->nf_flow.output_iface = facet->xout.nf_output_iface;
- facet->fail_open = rule->up.cr.priority == FAIL_OPEN_PRIORITY;
-
return facet;
}
&facet->subfacets) {
subfacet_destroy__(subfacet);
}
+ ovs_rwlock_wrlock(&facet->ofproto->facets.rwlock);
classifier_remove(&facet->ofproto->facets, &facet->cr);
+ ovs_rwlock_unlock(&facet->ofproto->facets.rwlock);
cls_rule_destroy(&facet->cr);
facet_free(facet);
}
{
if (facet) {
struct ofproto_dpif *ofproto = facet->ofproto;
- const struct rule_dpif *rule = rule_dpif_lookup(ofproto, &facet->flow,
- NULL);
- const struct ofpact *ofpacts = rule->up.ofpacts;
- size_t ofpacts_len = rule->up.ofpacts_len;
-
- if (ofpacts_len > 0 &&
- ofpacts->type == OFPACT_CONTROLLER &&
- ofpact_next(ofpacts) >= ofpact_end(ofpacts, ofpacts_len)) {
- return true;
- }
+ const struct ofpact *ofpacts;
+ struct rule_dpif *rule;
+ size_t ofpacts_len;
+ bool is_controller;
+
+ rule_dpif_lookup(ofproto, &facet->flow, NULL, &rule);
+ ofpacts_len = rule->up.actions->ofpacts_len;
+ ofpacts = rule->up.actions->ofpacts;
+ is_controller = ofpacts_len > 0
+ && ofpacts->type == OFPACT_CONTROLLER
+ && ofpact_next(ofpacts) >= ofpact_end(ofpacts, ofpacts_len);
+ rule_dpif_unref(rule);
+
+ return is_controller;
}
return false;
}
static struct facet *
facet_find(struct ofproto_dpif *ofproto, const struct flow *flow)
{
- struct cls_rule *cr = classifier_lookup(&ofproto->facets, flow, NULL);
+ struct cls_rule *cr;
+
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
+ cr = classifier_lookup(&ofproto->facets, flow, NULL);
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
return cr ? CONTAINER_OF(cr, struct facet, cr) : NULL;
}
facet = facet_find(ofproto, flow);
if (facet
- && (ofproto->backer->need_revalidate
- || tag_set_intersects(&ofproto->backer->revalidate_set,
- facet->xout.tags))
+ && ofproto->backer->need_revalidate
&& !facet_revalidate(facet)) {
return NULL;
}
struct xlate_in xin;
struct rule_dpif *rule;
- bool ok, fail_open;
+ bool ok;
/* Check the datapath actions for consistency. */
- rule = rule_dpif_lookup(facet->ofproto, &facet->flow, NULL);
+ rule_dpif_lookup(facet->ofproto, &facet->flow, NULL, &rule);
xlate_in_init(&xin, facet->ofproto, &facet->flow, rule, 0, NULL);
xlate_actions(&xin, &xout);
+ rule_dpif_unref(rule);
- fail_open = rule->up.cr.priority == FAIL_OPEN_PRIORITY;
ok = ofpbuf_equal(&facet->xout.odp_actions, &xout.odp_actions)
- && facet->xout.slow == xout.slow
- && facet->fail_open == fail_open;
+ && facet->xout.slow == xout.slow;
if (!ok && !VLOG_DROP_WARN(&rl)) {
struct ds s = DS_EMPTY_INITIALIZER;
ds_put_format(&s, " slow path incorrect. should be %d", xout.slow);
}
- if (facet->fail_open != fail_open) {
- ds_put_format(&s, " fail open incorrect. should be %s",
- fail_open ? "true" : "false");
- }
ds_destroy(&s);
}
xlate_out_uninit(&xout);
* where it is and recompiles its actions anyway.
*
* - If any of 'facet''s subfacets correspond to a new flow according to
- * ofproto_receive(), 'facet' is removed.
+ * xlate_receive(), 'facet' is removed.
*
* Returns true if 'facet' is still valid. False if 'facet' was removed. */
static bool
struct flow recv_flow;
int error;
- error = ofproto_receive(ofproto->backer, NULL, subfacet->key,
- subfacet->key_len, &recv_flow, NULL,
- &recv_ofproto, NULL);
+ error = xlate_receive(ofproto->backer, NULL, subfacet->key,
+ subfacet->key_len, &recv_flow, NULL,
+ &recv_ofproto, NULL);
if (error
|| recv_ofproto != ofproto
|| facet != facet_find(ofproto, &recv_flow)) {
}
flow_wildcards_init_catchall(&wc);
- new_rule = rule_dpif_lookup(ofproto, &facet->flow, &wc);
+ rule_dpif_lookup(ofproto, &facet->flow, &wc, &new_rule);
/* Calculate new datapath actions.
*
|| memcmp(&facet->xout.wc, &xout.wc, sizeof xout.wc)) {
facet_remove(facet);
xlate_out_uninit(&xout);
+ rule_dpif_unref(new_rule);
return false;
}
}
/* Update 'facet' now that we've taken care of all the old state. */
- facet->xout.tags = xout.tags;
facet->xout.slow = xout.slow;
facet->xout.has_learn = xout.has_learn;
facet->xout.has_normal = xout.has_normal;
facet->xout.mirrors = xout.mirrors;
facet->nf_flow.output_iface = facet->xout.nf_output_iface;
facet->used = MAX(facet->used, new_rule->up.created);
- facet->fail_open = new_rule->up.cr.priority == FAIL_OPEN_PRIORITY;
xlate_out_uninit(&xout);
+ rule_dpif_unref(new_rule);
return true;
}
facet->accounted_bytes = 0;
}
+static void
+flow_push_stats(struct ofproto_dpif *ofproto, struct flow *flow,
+ struct dpif_flow_stats *stats, bool may_learn)
+{
+ struct ofport_dpif *in_port;
+ struct rule_dpif *rule;
+ struct xlate_in xin;
+
+ in_port = get_ofp_port(ofproto, flow->in_port.ofp_port);
+ if (in_port && in_port->is_tunnel) {
+ netdev_vport_inc_rx(in_port->up.netdev, stats);
+ }
+
+ rule_dpif_lookup(ofproto, flow, NULL, &rule);
+ rule_dpif_credit_stats(rule, stats);
+ xlate_in_init(&xin, ofproto, flow, rule, stats->tcp_flags, NULL);
+ xin.resubmit_stats = stats;
+ xin.may_learn = may_learn;
+ xlate_actions_for_side_effects(&xin);
+ rule_dpif_unref(rule);
+}
+
static void
facet_push_stats(struct facet *facet, bool may_learn)
{
stats.tcp_flags = facet->tcp_flags;
if (may_learn || stats.n_packets || facet->used > facet->prev_used) {
- struct ofproto_dpif *ofproto = facet->ofproto;
- struct ofport_dpif *in_port;
- struct rule_dpif *rule;
- struct xlate_in xin;
-
facet->prev_packet_count = facet->packet_count;
facet->prev_byte_count = facet->byte_count;
facet->prev_used = facet->used;
- in_port = get_ofp_port(ofproto, facet->flow.in_port.ofp_port);
- if (in_port && in_port->is_tunnel) {
- netdev_vport_inc_rx(in_port->up.netdev, &stats);
- }
-
- rule = rule_dpif_lookup(ofproto, &facet->flow, NULL);
- rule_credit_stats(rule, &stats);
- netflow_flow_update_time(ofproto->netflow, &facet->nf_flow,
+ netflow_flow_update_time(facet->ofproto->netflow, &facet->nf_flow,
facet->used);
netflow_flow_update_flags(&facet->nf_flow, facet->tcp_flags);
- mirror_update_stats(ofproto->mbridge, facet->xout.mirrors,
+ mirror_update_stats(facet->ofproto->mbridge, facet->xout.mirrors,
stats.n_packets, stats.n_bytes);
-
- xlate_in_init(&xin, ofproto, &facet->flow, rule, stats.tcp_flags,
- NULL);
- xin.resubmit_stats = &stats;
- xin.may_learn = may_learn;
- xlate_actions_for_side_effects(&xin);
+ flow_push_stats(facet->ofproto, &facet->flow, &stats, may_learn);
}
}
struct cls_cursor cursor;
struct facet *facet;
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
cls_cursor_init(&cursor, &ofproto->facets, NULL);
CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
facet_push_stats(facet, false);
run_fast_rl();
}
}
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
}
rl = time_msec() + 100;
}
void
-rule_credit_stats(struct rule_dpif *rule, const struct dpif_flow_stats *stats)
+rule_dpif_credit_stats(struct rule_dpif *rule,
+ const struct dpif_flow_stats *stats)
{
+ ovs_mutex_lock(&rule->stats_mutex);
rule->packet_count += stats->n_packets;
rule->byte_count += stats->n_bytes;
- ofproto_rule_update_used(&rule->up, stats->used);
+ rule->up.used = MAX(rule->up.used, stats->used);
+ ovs_mutex_unlock(&rule->stats_mutex);
+}
+
+bool
+rule_dpif_fail_open(const struct rule_dpif *rule)
+{
+ return rule->up.cr.priority == FAIL_OPEN_PRIORITY;
+}
+
+ovs_be64
+rule_dpif_get_flow_cookie(const struct rule_dpif *rule)
+{
+ return rule->up.flow_cookie;
+}
+
+void
+rule_dpif_reduce_timeouts(struct rule_dpif *rule, uint16_t idle_timeout,
+ uint16_t hard_timeout)
+{
+ ofproto_rule_reduce_timeouts(&rule->up, idle_timeout, hard_timeout);
+}
+
+/* Returns 'rule''s actions. The caller owns a reference on the returned
+ * actions and must eventually release it (with rule_actions_unref()) to avoid
+ * a memory leak. */
+struct rule_actions *
+rule_dpif_get_actions(const struct rule_dpif *rule)
+{
+ struct rule_actions *actions;
+
+ ovs_rwlock_rdlock(&rule->up.rwlock);
+ actions = rule->up.actions;
+ rule_actions_ref(actions);
+ ovs_rwlock_unlock(&rule->up.rwlock);
+
+ return actions;
}
\f
/* Subfacets. */
* existing subfacet if there is one, otherwise creates and returns a
* new subfacet. */
static struct subfacet *
-subfacet_create(struct facet *facet, struct flow_miss *miss,
- long long int now)
+subfacet_create(struct facet *facet, struct flow_miss *miss)
{
struct dpif_backer *backer = miss->ofproto->backer;
enum odp_key_fitness key_fitness = miss->key_fitness;
subfacet->key_fitness = key_fitness;
subfacet->key = xmemdup(key, key_len);
subfacet->key_len = key_len;
- subfacet->used = now;
- subfacet->created = now;
+ subfacet->used = miss->stats.used;
+ subfacet->created = subfacet->used;
subfacet->dp_packet_count = 0;
subfacet->dp_byte_count = 0;
subfacet->path = SF_NOT_INSTALLED;
enum dpif_flow_put_flags flags;
int ret;
- flags = DPIF_FP_CREATE | DPIF_FP_MODIFY;
+ flags = subfacet->path == SF_NOT_INSTALLED ? DPIF_FP_CREATE
+ : DPIF_FP_MODIFY;
if (stats) {
flags |= DPIF_FP_ZERO_STATS;
}
/* Lookup 'flow' in 'ofproto''s classifier. If 'wc' is non-null, sets
* the fields that were relevant as part of the lookup. */
-static struct rule_dpif *
+void
rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow,
- struct flow_wildcards *wc)
+ struct flow_wildcards *wc, struct rule_dpif **rule)
{
- struct rule_dpif *rule;
+ struct ofport_dpif *port;
- rule = rule_dpif_lookup_in_table(ofproto, flow, wc, 0);
- if (rule) {
- return rule;
+ if (rule_dpif_lookup_in_table(ofproto, flow, wc, 0, rule)) {
+ return;
+ }
+ port = get_ofp_port(ofproto, flow->in_port.ofp_port);
+ if (!port) {
+ VLOG_WARN_RL(&rl, "packet-in on unknown OpenFlow port %"PRIu16,
+ flow->in_port.ofp_port);
}
- return rule_dpif_miss_rule(ofproto, flow);
+ choose_miss_rule(port ? port->up.pp.config : 0, ofproto->miss_rule,
+ ofproto->no_packet_in_rule, rule);
}
-struct rule_dpif *
+bool
rule_dpif_lookup_in_table(struct ofproto_dpif *ofproto,
const struct flow *flow, struct flow_wildcards *wc,
- uint8_t table_id)
+ uint8_t table_id, struct rule_dpif **rule)
{
struct cls_rule *cls_rule;
struct classifier *cls;
bool frag;
+ *rule = NULL;
if (table_id >= N_TABLES) {
- return NULL;
+ return false;
}
if (wc) {
}
cls = &ofproto->up.tables[table_id].cls;
+ ovs_rwlock_rdlock(&cls->rwlock);
frag = (flow->nw_frag & FLOW_NW_FRAG_ANY) != 0;
if (frag && ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
/* We must pretend that transport ports are unavailable. */
} else {
cls_rule = classifier_lookup(cls, flow, wc);
}
- return rule_dpif_cast(rule_from_cls_rule(cls_rule));
+
+ *rule = rule_dpif_cast(rule_from_cls_rule(cls_rule));
+ rule_dpif_ref(*rule);
+ ovs_rwlock_unlock(&cls->rwlock);
+
+ return *rule != NULL;
}
-struct rule_dpif *
-rule_dpif_miss_rule(struct ofproto_dpif *ofproto, const struct flow *flow)
+/* Given a port configuration (specified as zero if there's no port), chooses
+ * which of 'miss_rule' and 'no_packet_in_rule' should be used in case of a
+ * flow table miss. */
+void
+choose_miss_rule(enum ofputil_port_config config, struct rule_dpif *miss_rule,
+ struct rule_dpif *no_packet_in_rule, struct rule_dpif **rule)
{
- struct ofport_dpif *port;
+ *rule = config & OFPUTIL_PC_NO_PACKET_IN ? no_packet_in_rule : miss_rule;
+ rule_dpif_ref(*rule);
+}
- port = get_ofp_port(ofproto, flow->in_port.ofp_port);
- if (!port) {
- VLOG_WARN_RL(&rl, "packet-in on unknown OpenFlow port %"PRIu16,
- flow->in_port.ofp_port);
- return ofproto->miss_rule;
+void
+rule_dpif_ref(struct rule_dpif *rule)
+{
+ if (rule) {
+ ofproto_rule_ref(&rule->up);
}
+}
- if (port->up.pp.config & OFPUTIL_PC_NO_PACKET_IN) {
- return ofproto->no_packet_in_rule;
+void
+rule_dpif_unref(struct rule_dpif *rule)
+{
+ if (rule) {
+ ofproto_rule_unref(&rule->up);
}
- return ofproto->miss_rule;
}
static void
{
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 {
- ofoperation_complete(rule->up.pending, 0);
- }
+ ofproto->backer->need_revalidate = REV_FLOW_TABLE;
+ ofoperation_complete(rule->up.pending, 0);
+}
+
+static struct rule_dpif *rule_dpif_cast(const struct rule *rule)
+{
+ return rule ? CONTAINER_OF(rule, struct rule_dpif, up) : NULL;
}
static struct rule *
rule_construct(struct rule *rule_)
{
struct rule_dpif *rule = rule_dpif_cast(rule_);
- struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
- struct rule_dpif *victim;
- uint8_t table_id;
-
+ ovs_mutex_init(&rule->stats_mutex);
+ ovs_mutex_lock(&rule->stats_mutex);
rule->packet_count = 0;
rule->byte_count = 0;
+ ovs_mutex_unlock(&rule->stats_mutex);
+ return 0;
+}
- table_id = rule->up.table_id;
- victim = rule_dpif_cast(ofoperation_get_victim(rule->up.pending));
- if (victim) {
- rule->tag = victim->tag;
- } else if (table_id == 0) {
- rule->tag = 0;
- } else {
- struct flow flow;
-
- miniflow_expand(&rule->up.cr.match.flow, &flow);
- rule->tag = rule_calculate_tag(&flow, &rule->up.cr.match.mask,
- ofproto->tables[table_id].basis);
- }
+static void
+rule_insert(struct rule *rule_)
+{
+ struct rule_dpif *rule = rule_dpif_cast(rule_);
+ complete_operation(rule);
+}
+static void
+rule_delete(struct rule *rule_)
+{
+ struct rule_dpif *rule = rule_dpif_cast(rule_);
complete_operation(rule);
- return 0;
}
static void
-rule_destruct(struct rule *rule)
+rule_destruct(struct rule *rule_)
{
- complete_operation(rule_dpif_cast(rule));
+ struct rule_dpif *rule = rule_dpif_cast(rule_);
+ ovs_mutex_destroy(&rule->stats_mutex);
}
static void
/* Start from historical data for 'rule' itself that are no longer tracked
* in facets. This counts, for example, facets that have expired. */
+ ovs_mutex_lock(&rule->stats_mutex);
*packets = rule->packet_count;
*bytes = rule->byte_count;
+ ovs_mutex_unlock(&rule->stats_mutex);
}
static void
struct xlate_in xin;
dpif_flow_stats_extract(flow, packet, time_msec(), &stats);
- rule_credit_stats(rule, &stats);
+ rule_dpif_credit_stats(rule, &stats);
xlate_in_init(&xin, ofproto, flow, rule, stats.tcp_flags, packet);
xin.resubmit_stats = &stats;
}
static void
-rule_modify_actions(struct rule *rule_)
+rule_modify_actions(struct rule *rule_, bool reset_counters)
{
struct rule_dpif *rule = rule_dpif_cast(rule_);
+ if (reset_counters) {
+ ovs_mutex_lock(&rule->stats_mutex);
+ rule->packet_count = 0;
+ rule->byte_count = 0;
+ ovs_mutex_unlock(&rule->stats_mutex);
+ }
+
complete_operation(rule);
}
\f
ODPP_NONE);
odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, &buf);
} else {
- put_userspace_action(ofproto, &buf, flow, &cookie,
- sizeof cookie.slow_path);
+ odp_port_t odp_port;
+ uint32_t pid;
+
+ odp_port = ofp_port_to_odp_port(ofproto, flow->in_port.ofp_port);
+ pid = dpif_port_get_pid(ofproto->backer->dpif, odp_port);
+ odp_put_userspace_action(pid, &cookie, sizeof cookie.slow_path, &buf);
}
*actionsp = buf.data;
*actions_lenp = buf.size;
}
-
-size_t
-put_userspace_action(const struct ofproto_dpif *ofproto,
- struct ofpbuf *odp_actions,
- const struct flow *flow,
- const union user_action_cookie *cookie,
- const size_t cookie_size)
-{
- uint32_t pid;
-
- pid = dpif_port_get_pid(ofproto->backer->dpif,
- ofp_port_to_odp_port(ofproto,
- flow->in_port.ofp_port));
-
- return odp_put_userspace_action(pid, cookie, cookie_size, odp_actions);
-}
-
-tag_type
-calculate_flow_tag(struct ofproto_dpif *ofproto, const struct flow *flow,
- uint8_t table_id, struct rule_dpif *rule)
-{
- if (table_id > 0 && table_id < N_TABLES) {
- struct table_dpif *table = &ofproto->tables[table_id];
- if (table->other_table) {
- return (rule && rule->tag
- ? rule->tag
- : rule_calculate_tag(flow, &table->other_table->mask,
- table->basis));
- }
- }
-
- return 0;
-}
-\f
-/* Optimized flow revalidation.
- *
- * It's a difficult problem, in general, to tell which facets need to have
- * their actions recalculated whenever the OpenFlow flow table changes. We
- * don't try to solve that general problem: for most kinds of OpenFlow flow
- * table changes, we recalculate the actions for every facet. This is
- * relatively expensive, but it's good enough if the OpenFlow flow table
- * doesn't change very often.
- *
- * However, we can expect one particular kind of OpenFlow flow table change to
- * happen frequently: changes caused by MAC learning. To avoid wasting a lot
- * of CPU on revalidating every facet whenever MAC learning modifies the flow
- * table, we add a special case that applies to flow tables in which every rule
- * has the same form (that is, the same wildcards), except that the table is
- * also allowed to have a single "catch-all" flow that matches all packets. We
- * optimize this case by tagging all of the facets that resubmit into the table
- * and invalidating the same tag whenever a flow changes in that table. The
- * end result is that we revalidate just the facets that need it (and sometimes
- * a few more, but not all of the facets or even all of the facets that
- * resubmit to the table modified by MAC learning). */
-
-/* Calculates the tag to use for 'flow' and mask 'mask' when it is inserted
- * into an OpenFlow table with the given 'basis'. */
-tag_type
-rule_calculate_tag(const struct flow *flow, const struct minimask *mask,
- uint32_t secret)
-{
- if (minimask_is_catchall(mask)) {
- return 0;
- } else {
- uint32_t hash = flow_hash_in_minimask(flow, mask, secret);
- return tag_create_deterministic(hash);
- }
-}
-
-/* Following a change to OpenFlow table 'table_id' in 'ofproto', update the
- * taggability of that table.
- *
- * This function must be called after *each* change to a flow table. If you
- * skip calling it on some changes then the pointer comparisons at the end can
- * be invalid if you get unlucky. For example, if a flow removal causes a
- * cls_table to be destroyed and then a flow insertion causes a cls_table with
- * different wildcards to be created with the same address, then this function
- * will incorrectly skip revalidation. */
-static void
-table_update_taggable(struct ofproto_dpif *ofproto, uint8_t table_id)
-{
- struct table_dpif *table = &ofproto->tables[table_id];
- const struct oftable *oftable = &ofproto->up.tables[table_id];
- struct cls_table *catchall, *other;
- struct cls_table *t;
-
- catchall = other = NULL;
-
- switch (hmap_count(&oftable->cls.tables)) {
- case 0:
- /* We could tag this OpenFlow table but it would make the logic a
- * little harder and it's a corner case that doesn't seem worth it
- * yet. */
- break;
-
- case 1:
- case 2:
- HMAP_FOR_EACH (t, hmap_node, &oftable->cls.tables) {
- if (cls_table_is_catchall(t)) {
- catchall = t;
- } else if (!other) {
- other = t;
- } else {
- /* Indicate that we can't tag this by setting both tables to
- * NULL. (We know that 'catchall' is already NULL.) */
- other = NULL;
- }
- }
- break;
-
- default:
- /* Can't tag this table. */
- break;
- }
-
- if (table->catchall_table != catchall || table->other_table != other) {
- table->catchall_table = catchall;
- table->other_table = other;
- ofproto->backer->need_revalidate = REV_FLOW_TABLE;
- }
-}
-
-/* Given 'rule' that has changed in some way (either it is a rule being
- * inserted, a rule being deleted, or a rule whose actions are being
- * modified), marks facets for revalidation to ensure that packets will be
- * forwarded correctly according to the new state of the flow table.
- *
- * This function must be called after *each* change to a flow table. See
- * the comment on table_update_taggable() for more information. */
-static void
-rule_invalidate(const struct rule_dpif *rule)
-{
- struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
-
- table_update_taggable(ofproto, rule->up.table_id);
-
- if (!ofproto->backer->need_revalidate) {
- struct table_dpif *table = &ofproto->tables[rule->up.table_id];
-
- if (table->other_table && rule->tag) {
- tag_set_add(&ofproto->backer->revalidate_set, rule->tag);
- } else {
- ofproto->backer->need_revalidate = REV_FLOW_TABLE;
- }
- }
-}
\f
static bool
set_frag_handling(struct ofproto *ofproto_,
struct cls_cursor cursor;
struct facet *facet;
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
cls_cursor_init(&cursor, &ofproto->facets, NULL);
CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
send_active_timeout(ofproto, facet);
}
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
}
\f
static struct ofproto_dpif *
unixctl_command_reply_error(conn, "no such bridge");
return;
}
- mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set);
+ ovs_rwlock_wrlock(&ofproto->ml->rwlock);
+ mac_learning_flush(ofproto->ml);
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
} else {
HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
- mac_learning_flush(ofproto->ml, &ofproto->backer->revalidate_set);
+ ovs_rwlock_wrlock(&ofproto->ml->rwlock);
+ mac_learning_flush(ofproto->ml);
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
}
}
}
ds_put_cstr(&ds, " port VLAN MAC Age\n");
+ ovs_rwlock_rdlock(&ofproto->ml->rwlock);
LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
struct ofbundle *bundle = e->port.p;
char name[OFP_MAX_PORT_NAME_LEN];
name, e->vlan, ETH_ADDR_ARGS(e->mac),
mac_entry_age(ofproto->ml, e));
}
+ ovs_rwlock_unlock(&ofproto->ml->rwlock);
unixctl_command_reply(conn, ds_cstr(&ds));
ds_destroy(&ds);
}
ds_put_char_multiple(result, '\t', level);
ds_put_cstr(result, "OpenFlow ");
- ofpacts_format(rule->up.ofpacts, rule->up.ofpacts_len, result);
+ ofpacts_format(rule->up.actions->ofpacts, rule->up.actions->ofpacts_len,
+ result);
ds_put_char(result, '\n');
}
backer = node->data;
}
- /* Extract the ofproto_dpif object from the ofproto_receive()
- * function. */
- if (ofproto_receive(backer, NULL, odp_key.data,
- odp_key.size, &flow, NULL, &ofproto, NULL)) {
+ if (xlate_receive(backer, NULL, odp_key.data, odp_key.size, &flow,
+ NULL, &ofproto, NULL)) {
unixctl_command_reply_error(conn, "Invalid datapath flow");
goto exit;
}
/* Use the metadata from the flow and the packet argument
* to reconstruct the flow. */
- flow_extract(packet, flow.skb_priority, flow.skb_mark, NULL,
+ flow_extract(packet, flow.skb_priority, flow.pkt_mark, NULL,
&in_port_, &flow);
}
}
ofpbuf_uninit(&odp_mask);
}
-void
+static void
ofproto_trace(struct ofproto_dpif *ofproto, const struct flow *flow,
const struct ofpbuf *packet, struct ds *ds)
{
struct rule_dpif *rule;
+ struct flow_wildcards wc;
ds_put_cstr(ds, "Flow: ");
flow_format(ds, flow);
ds_put_char(ds, '\n');
- rule = rule_dpif_lookup(ofproto, flow, NULL);
+ flow_wildcards_init_catchall(&wc);
+ rule_dpif_lookup(ofproto, flow, &wc, &rule);
trace_format_rule(ds, 0, rule);
if (rule == ofproto->miss_rule) {
trace.xin.report_hook = trace_report;
xlate_actions(&trace.xin, &trace.xout);
+ flow_wildcards_or(&trace.xout.wc, &trace.xout.wc, &wc);
ds_put_char(ds, '\n');
trace_format_flow(ds, 0, "Final flow", &trace);
xlate_out_uninit(&trace.xout);
}
-}
-static void
-ofproto_dpif_clog(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED,
- const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
-{
- clogged = true;
- unixctl_command_reply(conn, NULL);
-}
-
-static void
-ofproto_dpif_unclog(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED,
- const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
-{
- clogged = false;
- unixctl_command_reply(conn, NULL);
+ rule_dpif_unref(rule);
}
/* Runs a self-check of flow translations in 'ofproto'. Appends a message to
int errors;
errors = 0;
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
cls_cursor_init(&cursor, &ofproto->facets, NULL);
CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
if (!facet_check_consistency(facet)) {
errors++;
}
}
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
if (errors) {
ofproto->backer->need_revalidate = REV_INCONSISTENCY;
}
return;
}
+ ovs_rwlock_rdlock(&ofproto->facets.rwlock);
cls_cursor_init(&cursor, &ofproto->facets, NULL);
CLS_CURSOR_FOR_EACH (facet, cr, &cursor) {
cls_rule_format(&facet->cr, &ds);
}
ds_put_cstr(&ds, "\n");
}
+ ovs_rwlock_unlock(&ofproto->facets.rwlock);
ds_chomp(&ds, '\n');
unixctl_command_reply(conn, ds_cstr(&ds));
}
odp_flow_format(subfacet->key, subfacet->key_len,
- mask.data, mask.size, &ds);
+ mask.data, mask.size, &ds, false);
ds_put_format(&ds, ", packets:%"PRIu64", bytes:%"PRIu64", used:",
subfacet->dp_packet_count, subfacet->dp_byte_count);
ofproto_unixctl_fdb_flush, NULL);
unixctl_command_register("fdb/show", "bridge", 1, 1,
ofproto_unixctl_fdb_show, NULL);
- unixctl_command_register("ofproto/clog", "", 0, 0,
- ofproto_dpif_clog, NULL);
- unixctl_command_register("ofproto/unclog", "", 0, 0,
- ofproto_dpif_unclog, NULL);
unixctl_command_register("ofproto/self-check", "[bridge]", 0, 1,
ofproto_dpif_self_check, NULL);
unixctl_command_register("dpif/dump-dps", "", 0, 0,
bool
ofproto_has_vlan_splinters(const struct ofproto_dpif *ofproto)
+ OVS_EXCLUDED(ofproto->vsp_mutex)
{
- return !hmap_is_empty(&ofproto->realdev_vid_map);
+ bool ret;
+
+ ovs_mutex_lock(&ofproto->vsp_mutex);
+ ret = !hmap_is_empty(&ofproto->realdev_vid_map);
+ ovs_mutex_unlock(&ofproto->vsp_mutex);
+ return ret;
}
-/* Returns the OFP port number of the Linux VLAN device that corresponds to
- * 'vlan_tci' on the network device with port number 'realdev_ofp_port' in
- * 'struct ofport_dpif'. For example, given 'realdev_ofp_port' of eth0 and
- * 'vlan_tci' 9, it would return the port number of eth0.9.
- *
- * Unless VLAN splinters are enabled for port 'realdev_ofp_port', this
- * function just returns its 'realdev_ofp_port' argument. */
-ofp_port_t
-vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto,
- ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
+static ofp_port_t
+vsp_realdev_to_vlandev__(const struct ofproto_dpif *ofproto,
+ ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
+ OVS_REQUIRES(ofproto->vsp_mutex)
{
if (!hmap_is_empty(&ofproto->realdev_vid_map)) {
int vid = vlan_tci_to_vid(vlan_tci);
return realdev_ofp_port;
}
+/* Returns the OFP port number of the Linux VLAN device that corresponds to
+ * 'vlan_tci' on the network device with port number 'realdev_ofp_port' in
+ * 'struct ofport_dpif'. For example, given 'realdev_ofp_port' of eth0 and
+ * 'vlan_tci' 9, it would return the port number of eth0.9.
+ *
+ * Unless VLAN splinters are enabled for port 'realdev_ofp_port', this
+ * function just returns its 'realdev_ofp_port' argument. */
+ofp_port_t
+vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto,
+ ofp_port_t realdev_ofp_port, ovs_be16 vlan_tci)
+ OVS_EXCLUDED(ofproto->vsp_mutex)
+{
+ ofp_port_t ret;
+
+ ovs_mutex_lock(&ofproto->vsp_mutex);
+ ret = vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, vlan_tci);
+ ovs_mutex_unlock(&ofproto->vsp_mutex);
+ return ret;
+}
+
static struct vlan_splinter *
vlandev_find(const struct ofproto_dpif *ofproto, ofp_port_t vlandev_ofp_port)
{
static ofp_port_t
vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto,
ofp_port_t vlandev_ofp_port, int *vid)
+ OVS_REQUIRES(ofproto->vsp_mutex)
{
if (!hmap_is_empty(&ofproto->vlandev_map)) {
const struct vlan_splinter *vsp;
* 'flow->vlan_tci' to the VLAN VID, and returns true. Otherwise (which is
* always the case unless VLAN splinters are enabled), returns false without
* making any changes. */
-static bool
+bool
vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow)
+ OVS_EXCLUDED(ofproto->vsp_mutex)
{
ofp_port_t realdev;
int vid;
+ ovs_mutex_lock(&ofproto->vsp_mutex);
realdev = vsp_vlandev_to_realdev(ofproto, flow->in_port.ofp_port, &vid);
+ ovs_mutex_unlock(&ofproto->vsp_mutex);
if (!realdev) {
return false;
}
struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
struct vlan_splinter *vsp;
+ ovs_mutex_lock(&ofproto->vsp_mutex);
vsp = vlandev_find(ofproto, port->up.ofp_port);
if (vsp) {
hmap_remove(&ofproto->vlandev_map, &vsp->vlandev_node);
} else {
VLOG_ERR("missing vlan device record");
}
+ ovs_mutex_unlock(&ofproto->vsp_mutex);
}
static void
{
struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
+ ovs_mutex_lock(&ofproto->vsp_mutex);
if (!vsp_vlandev_to_realdev(ofproto, port->up.ofp_port, NULL)
- && (vsp_realdev_to_vlandev(ofproto, realdev_ofp_port, htons(vid))
+ && (vsp_realdev_to_vlandev__(ofproto, realdev_ofp_port, htons(vid))
== realdev_ofp_port)) {
struct vlan_splinter *vsp;
vsp = xmalloc(sizeof *vsp);
- hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node,
- hash_ofp_port(port->up.ofp_port));
- hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node,
- hash_realdev_vid(realdev_ofp_port, vid));
vsp->realdev_ofp_port = realdev_ofp_port;
vsp->vlandev_ofp_port = port->up.ofp_port;
vsp->vid = vid;
port->realdev_ofp_port = realdev_ofp_port;
+
+ hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node,
+ hash_ofp_port(port->up.ofp_port));
+ hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node,
+ hash_realdev_vid(realdev_ofp_port, vid));
} else {
VLOG_ERR("duplicate vlan device record");
}
+ ovs_mutex_unlock(&ofproto->vsp_mutex);
}
static odp_port_t
return ofport ? ofport->odp_port : ODPP_NONE;
}
-static struct ofport_dpif *
+struct ofport_dpif *
odp_port_to_ofport(const struct dpif_backer *backer, odp_port_t odp_port)
{
struct ofport_dpif *port;
+ ovs_rwlock_rdlock(&backer->odp_to_ofport_lock);
HMAP_FOR_EACH_IN_BUCKET (port, odp_port_node, hash_odp_port(odp_port),
&backer->odp_to_ofport_map) {
if (port->odp_port == odp_port) {
+ ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
return port;
}
}
+ ovs_rwlock_unlock(&backer->odp_to_ofport_lock);
return NULL;
}
NULL, /* rule_choose_table */
rule_alloc,
rule_construct,
+ rule_insert,
+ rule_delete,
rule_destruct,
rule_dealloc,
rule_get_stats,
projects / cascardo / ovs.git / blobdiff