#include "odp-util.h"
#include "ofp-print.h"
#include "ofpbuf.h"
+#include "ovs-rcu.h"
#include "packets.h"
#include "poll-loop.h"
#include "random.h"
enum { DP_NETDEV_HEADROOM = 2 + VLAN_HEADER_LEN };
/* Queues. */
-enum { N_QUEUES = 2 }; /* Number of queues for dpif_recv(). */
enum { MAX_QUEUE_LEN = 128 }; /* Maximum number of packets per queue. */
enum { QUEUE_MASK = MAX_QUEUE_LEN - 1 };
BUILD_ASSERT_DECL(IS_POW2(MAX_QUEUE_LEN));
struct ofpbuf buf; /* ofpbuf instance for upcall.packet. */
};
-/* A queue passing packets from a struct dp_netdev to its clients.
+/* A queue passing packets from a struct dp_netdev to its clients (handlers).
*
*
* Thread-safety
* =============
*
- * Any access at all requires the owning 'dp_netdev''s queue_mutex. */
+ * Any access at all requires the owning 'dp_netdev''s queue_rwlock and
+ * its own mutex. */
struct dp_netdev_queue {
+ struct ovs_mutex mutex;
+ struct seq *seq; /* Incremented whenever a packet is queued. */
struct dp_netdev_upcall upcalls[MAX_QUEUE_LEN] OVS_GUARDED;
unsigned int head OVS_GUARDED;
unsigned int tail OVS_GUARDED;
* port_rwlock
* flow_mutex
* cls.rwlock
- * queue_mutex
+ * queue_rwlock
*/
struct dp_netdev {
const struct dpif_class *const class;
/* Queues.
*
- * Everything in 'queues' is protected by 'queue_mutex'. */
- struct ovs_mutex queue_mutex;
- struct dp_netdev_queue queues[N_QUEUES];
- struct seq *queue_seq; /* Incremented whenever a packet is queued. */
+ * 'queue_rwlock' protects the modification of 'handler_queues' and
+ * 'n_handlers'. The queue elements are protected by its
+ * 'handler_queues''s mutex. */
+ struct fat_rwlock queue_rwlock;
+ struct dp_netdev_queue *handler_queues;
+ uint32_t n_handlers;
/* Statistics.
*
const struct hmap_node node; /* In owning dp_netdev's 'flow_table'. */
const struct flow flow; /* The flow that created this entry. */
- /* Number of references.
- * The classifier owns one reference.
- * Any thread trying to keep a rule from being freed should hold its own
- * reference. */
- struct ovs_refcount ref_cnt;
-
/* Protects members marked OVS_GUARDED.
*
* Acquire after datapath's flow_mutex. */
* Reading 'actions' requires 'mutex'.
* Writing 'actions' requires 'mutex' and (to allow for transactions) the
* datapath's flow_mutex. */
- struct dp_netdev_actions *actions OVS_GUARDED;
+ OVSRCU_TYPE(struct dp_netdev_actions *) actions;
};
-static struct dp_netdev_flow *dp_netdev_flow_ref(
- const struct dp_netdev_flow *);
-static void dp_netdev_flow_unref(struct dp_netdev_flow *);
+static void dp_netdev_flow_free(struct dp_netdev_flow *);
/* Contained by struct dp_netdev_flow's 'stats' member. */
struct dp_netdev_flow_stats {
* 'flow' is the dp_netdev_flow for which 'flow->actions == actions') or that
* owns a reference to 'actions->ref_cnt' (or both). */
struct dp_netdev_actions {
- struct ovs_refcount ref_cnt;
-
/* These members are immutable: they do not change during the struct's
* lifetime. */
struct nlattr *actions; /* Sequence of OVS_ACTION_ATTR_* attributes. */
struct dp_netdev_actions *dp_netdev_actions_create(const struct nlattr *,
size_t);
-struct dp_netdev_actions *dp_netdev_actions_ref(
- const struct dp_netdev_actions *);
-void dp_netdev_actions_unref(struct dp_netdev_actions *);
+struct dp_netdev_actions *dp_netdev_flow_get_actions(
+ const struct dp_netdev_flow *);
+static void dp_netdev_actions_free(struct dp_netdev_actions *);
/* A thread that receives packets from some ports, looks them up in the flow
* table, and executes the actions it finds. */
OVS_REQ_WRLOCK(dp->port_rwlock);
static int do_del_port(struct dp_netdev *dp, odp_port_t port_no)
OVS_REQ_WRLOCK(dp->port_rwlock);
+static void dp_netdev_destroy_all_queues(struct dp_netdev *dp)
+ OVS_REQ_WRLOCK(dp->queue_rwlock);
static int dpif_netdev_open(const struct dpif_class *, const char *name,
bool create, struct dpif **);
static int dp_netdev_output_userspace(struct dp_netdev *dp, struct ofpbuf *,
- int queue_no, const struct flow *,
- const struct nlattr *userdata)
- OVS_EXCLUDED(dp->queue_mutex);
+ int queue_no, int type,
+ const struct flow *,
+ const struct nlattr *userdata)
+ OVS_EXCLUDED(dp->queue_rwlock);
static void dp_netdev_execute_actions(struct dp_netdev *dp,
const struct flow *, struct ofpbuf *,
struct pkt_metadata *,
{
struct dp_netdev *dp;
int error;
- int i;
dp = xzalloc(sizeof *dp);
shash_add(&dp_netdevs, name, dp);
classifier_init(&dp->cls, NULL);
hmap_init(&dp->flow_table);
- ovs_mutex_init(&dp->queue_mutex);
- ovs_mutex_lock(&dp->queue_mutex);
- for (i = 0; i < N_QUEUES; i++) {
- dp->queues[i].head = dp->queues[i].tail = 0;
- }
- ovs_mutex_unlock(&dp->queue_mutex);
- dp->queue_seq = seq_create();
+ fat_rwlock_init(&dp->queue_rwlock);
ovsthread_stats_init(&dp->stats);
static void
dp_netdev_purge_queues(struct dp_netdev *dp)
+ OVS_REQ_WRLOCK(dp->queue_rwlock)
{
int i;
- ovs_mutex_lock(&dp->queue_mutex);
- for (i = 0; i < N_QUEUES; i++) {
- struct dp_netdev_queue *q = &dp->queues[i];
+ for (i = 0; i < dp->n_handlers; i++) {
+ struct dp_netdev_queue *q = &dp->handler_queues[i];
+ ovs_mutex_lock(&q->mutex);
while (q->tail != q->head) {
struct dp_netdev_upcall *u = &q->upcalls[q->tail++ & QUEUE_MASK];
ofpbuf_uninit(&u->upcall.packet);
ofpbuf_uninit(&u->buf);
}
+ ovs_mutex_unlock(&q->mutex);
}
- ovs_mutex_unlock(&dp->queue_mutex);
}
/* Requires dp_netdev_mutex so that we can't get a new reference to 'dp'
}
ovsthread_stats_destroy(&dp->stats);
- dp_netdev_purge_queues(dp);
- seq_destroy(dp->queue_seq);
- ovs_mutex_destroy(&dp->queue_mutex);
+ fat_rwlock_wrlock(&dp->queue_rwlock);
+ dp_netdev_destroy_all_queues(dp);
+ fat_rwlock_unlock(&dp->queue_rwlock);
+
+ fat_rwlock_destroy(&dp->queue_rwlock);
classifier_destroy(&dp->cls);
hmap_destroy(&dp->flow_table);
return error;
}
+static void
+dp_netdev_flow_free(struct dp_netdev_flow *flow)
+{
+ struct dp_netdev_flow_stats *bucket;
+ size_t i;
+
+ OVSTHREAD_STATS_FOR_EACH_BUCKET (bucket, i, &flow->stats) {
+ ovs_mutex_destroy(&bucket->mutex);
+ free_cacheline(bucket);
+ }
+ ovsthread_stats_destroy(&flow->stats);
+
+ cls_rule_destroy(CONST_CAST(struct cls_rule *, &flow->cr));
+ dp_netdev_actions_free(dp_netdev_flow_get_actions(flow));
+ ovs_mutex_destroy(&flow->mutex);
+ free(flow);
+}
+
static void
dp_netdev_remove_flow(struct dp_netdev *dp, struct dp_netdev_flow *flow)
OVS_REQ_WRLOCK(dp->cls.rwlock)
classifier_remove(&dp->cls, cr);
hmap_remove(&dp->flow_table, node);
- dp_netdev_flow_unref(flow);
-}
-
-static struct dp_netdev_flow *
-dp_netdev_flow_ref(const struct dp_netdev_flow *flow_)
-{
- struct dp_netdev_flow *flow = CONST_CAST(struct dp_netdev_flow *, flow_);
- if (flow) {
- ovs_refcount_ref(&flow->ref_cnt);
- }
- return flow;
-}
-
-static void
-dp_netdev_flow_unref(struct dp_netdev_flow *flow)
-{
- if (flow && ovs_refcount_unref(&flow->ref_cnt) == 1) {
- struct dp_netdev_flow_stats *bucket;
- size_t i;
-
- OVSTHREAD_STATS_FOR_EACH_BUCKET (bucket, i, &flow->stats) {
- ovs_mutex_destroy(&bucket->mutex);
- free_cacheline(bucket);
- }
- ovsthread_stats_destroy(&flow->stats);
-
- cls_rule_destroy(CONST_CAST(struct cls_rule *, &flow->cr));
- ovs_mutex_lock(&flow->mutex);
- dp_netdev_actions_unref(flow->actions);
- ovs_mutex_unlock(&flow->mutex);
- ovs_mutex_destroy(&flow->mutex);
- free(flow);
- }
+ ovsrcu_postpone(dp_netdev_flow_free, flow);
}
static void
fat_rwlock_rdlock(&dp->cls.rwlock);
netdev_flow = dp_netdev_flow_cast(classifier_lookup(&dp->cls, flow, NULL));
- dp_netdev_flow_ref(netdev_flow);
fat_rwlock_unlock(&dp->cls.rwlock);
return netdev_flow;
HMAP_FOR_EACH_WITH_HASH (netdev_flow, node, flow_hash(flow, 0),
&dp->flow_table) {
if (flow_equal(&netdev_flow->flow, flow)) {
- return dp_netdev_flow_ref(netdev_flow);
+ return netdev_flow;
}
}
fat_rwlock_unlock(&dp->cls.rwlock);
if (netdev_flow) {
- struct dp_netdev_actions *actions = NULL;
-
if (stats) {
get_dpif_flow_stats(netdev_flow, stats);
}
- ovs_mutex_lock(&netdev_flow->mutex);
if (actionsp) {
- actions = dp_netdev_actions_ref(netdev_flow->actions);
- }
- ovs_mutex_unlock(&netdev_flow->mutex);
-
- dp_netdev_flow_unref(netdev_flow);
+ struct dp_netdev_actions *actions;
- if (actionsp) {
+ actions = dp_netdev_flow_get_actions(netdev_flow);
*actionsp = ofpbuf_clone_data(actions->actions, actions->size);
- dp_netdev_actions_unref(actions);
}
- } else {
+ } else {
error = ENOENT;
}
netdev_flow = xzalloc(sizeof *netdev_flow);
*CONST_CAST(struct flow *, &netdev_flow->flow) = *flow;
- ovs_refcount_init(&netdev_flow->ref_cnt);
ovs_mutex_init(&netdev_flow->mutex);
- ovs_mutex_lock(&netdev_flow->mutex);
ovsthread_stats_init(&netdev_flow->stats);
- netdev_flow->actions = dp_netdev_actions_create(actions, actions_len);
+ ovsrcu_set(&netdev_flow->actions,
+ dp_netdev_actions_create(actions, actions_len));
match_init(&match, flow, wc);
cls_rule_init(CONST_CAST(struct cls_rule *, &netdev_flow->cr),
flow_hash(flow, 0));
fat_rwlock_unlock(&dp->cls.rwlock);
- ovs_mutex_unlock(&netdev_flow->mutex);
-
return 0;
}
new_actions = dp_netdev_actions_create(put->actions,
put->actions_len);
- ovs_mutex_lock(&netdev_flow->mutex);
- old_actions = netdev_flow->actions;
- netdev_flow->actions = new_actions;
- ovs_mutex_unlock(&netdev_flow->mutex);
+ old_actions = dp_netdev_flow_get_actions(netdev_flow);
+ ovsrcu_set(&netdev_flow->actions, new_actions);
if (put->stats) {
get_dpif_flow_stats(netdev_flow, put->stats);
clear_stats(netdev_flow);
}
- dp_netdev_actions_unref(old_actions);
+ ovsrcu_postpone(dp_netdev_actions_free, old_actions);
} else if (put->flags & DPIF_FP_CREATE) {
error = EEXIST;
} else {
/* Overlapping flow. */
error = EINVAL;
}
- dp_netdev_flow_unref(netdev_flow);
}
ovs_mutex_unlock(&dp->flow_mutex);
get_dpif_flow_stats(netdev_flow, del->stats);
}
dp_netdev_remove_flow(dp, netdev_flow);
- dp_netdev_flow_unref(netdev_flow);
} else {
error = ENOENT;
}
{
struct dp_netdev_flow_state *state = state_;
- dp_netdev_actions_unref(state->actions);
free(state);
}
return 0;
}
+/* XXX the caller must use 'actions' without quiescing */
static int
dpif_netdev_flow_dump_next(const struct dpif *dpif, void *iter_, void *state_,
const struct nlattr **key, size_t *key_len,
node = hmap_at_position(&dp->flow_table, &iter->bucket, &iter->offset);
if (node) {
netdev_flow = CONTAINER_OF(node, struct dp_netdev_flow, node);
- dp_netdev_flow_ref(netdev_flow);
}
fat_rwlock_unlock(&dp->cls.rwlock);
if (!node) {
}
if (actions || stats) {
- dp_netdev_actions_unref(state->actions);
state->actions = NULL;
- ovs_mutex_lock(&netdev_flow->mutex);
if (actions) {
- state->actions = dp_netdev_actions_ref(netdev_flow->actions);
+ state->actions = dp_netdev_flow_get_actions(netdev_flow);
*actions = state->actions->actions;
*actions_len = state->actions->size;
}
- ovs_mutex_unlock(&netdev_flow->mutex);
if (stats) {
get_dpif_flow_stats(netdev_flow, &state->stats);
}
}
- dp_netdev_flow_unref(netdev_flow);
-
return 0;
}
return 0;
}
+static void
+dp_netdev_destroy_all_queues(struct dp_netdev *dp)
+ OVS_REQ_WRLOCK(dp->queue_rwlock)
+{
+ size_t i;
+
+ dp_netdev_purge_queues(dp);
+
+ for (i = 0; i < dp->n_handlers; i++) {
+ struct dp_netdev_queue *q = &dp->handler_queues[i];
+
+ ovs_mutex_destroy(&q->mutex);
+ seq_destroy(q->seq);
+ }
+ free(dp->handler_queues);
+ dp->handler_queues = NULL;
+ dp->n_handlers = 0;
+}
+
+static void
+dp_netdev_refresh_queues(struct dp_netdev *dp, uint32_t n_handlers)
+ OVS_REQ_WRLOCK(dp->queue_rwlock)
+{
+ if (dp->n_handlers != n_handlers) {
+ size_t i;
+
+ dp_netdev_destroy_all_queues(dp);
+
+ dp->n_handlers = n_handlers;
+ dp->handler_queues = xzalloc(n_handlers * sizeof *dp->handler_queues);
+
+ for (i = 0; i < n_handlers; i++) {
+ struct dp_netdev_queue *q = &dp->handler_queues[i];
+
+ ovs_mutex_init(&q->mutex);
+ q->seq = seq_create();
+ }
+ }
+}
+
+static int
+dpif_netdev_recv_set(struct dpif *dpif, bool enable)
+{
+ struct dp_netdev *dp = get_dp_netdev(dpif);
+
+ if ((dp->handler_queues != NULL) == enable) {
+ return 0;
+ }
+
+ fat_rwlock_wrlock(&dp->queue_rwlock);
+ if (!enable) {
+ dp_netdev_destroy_all_queues(dp);
+ } else {
+ dp_netdev_refresh_queues(dp, 1);
+ }
+ fat_rwlock_unlock(&dp->queue_rwlock);
+
+ return 0;
+}
+
static int
-dpif_netdev_recv_set(struct dpif *dpif OVS_UNUSED, bool enable OVS_UNUSED)
+dpif_netdev_handlers_set(struct dpif *dpif, uint32_t n_handlers)
{
+ struct dp_netdev *dp = get_dp_netdev(dpif);
+
+ fat_rwlock_wrlock(&dp->queue_rwlock);
+ if (dp->handler_queues) {
+ dp_netdev_refresh_queues(dp, n_handlers);
+ }
+ fat_rwlock_unlock(&dp->queue_rwlock);
+
return 0;
}
return 0;
}
-static struct dp_netdev_queue *
-find_nonempty_queue(struct dp_netdev *dp)
- OVS_REQUIRES(dp->queue_mutex)
+static bool
+dp_netdev_recv_check(const struct dp_netdev *dp, const uint32_t handler_id)
+ OVS_REQ_RDLOCK(dp->queue_rwlock)
{
- int i;
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
- for (i = 0; i < N_QUEUES; i++) {
- struct dp_netdev_queue *q = &dp->queues[i];
- if (q->head != q->tail) {
- return q;
- }
+ if (!dp->handler_queues) {
+ VLOG_WARN_RL(&rl, "receiving upcall disabled");
+ return false;
}
- return NULL;
+
+ if (handler_id >= dp->n_handlers) {
+ VLOG_WARN_RL(&rl, "handler index out of bound");
+ return false;
+ }
+
+ return true;
}
static int
-dpif_netdev_recv(struct dpif *dpif, struct dpif_upcall *upcall,
- struct ofpbuf *buf)
+dpif_netdev_recv(struct dpif *dpif, uint32_t handler_id,
+ struct dpif_upcall *upcall, struct ofpbuf *buf)
{
struct dp_netdev *dp = get_dp_netdev(dpif);
struct dp_netdev_queue *q;
- int error;
+ int error = 0;
+
+ fat_rwlock_rdlock(&dp->queue_rwlock);
+
+ if (!dp_netdev_recv_check(dp, handler_id)) {
+ error = EAGAIN;
+ goto out;
+ }
- ovs_mutex_lock(&dp->queue_mutex);
- q = find_nonempty_queue(dp);
- if (q) {
+ q = &dp->handler_queues[handler_id];
+ ovs_mutex_lock(&q->mutex);
+ if (q->head != q->tail) {
struct dp_netdev_upcall *u = &q->upcalls[q->tail++ & QUEUE_MASK];
*upcall = u->upcall;
ofpbuf_uninit(buf);
*buf = u->buf;
-
- error = 0;
} else {
error = EAGAIN;
}
- ovs_mutex_unlock(&dp->queue_mutex);
+ ovs_mutex_unlock(&q->mutex);
+
+out:
+ fat_rwlock_unlock(&dp->queue_rwlock);
return error;
}
static void
-dpif_netdev_recv_wait(struct dpif *dpif)
+dpif_netdev_recv_wait(struct dpif *dpif, uint32_t handler_id)
{
struct dp_netdev *dp = get_dp_netdev(dpif);
+ struct dp_netdev_queue *q;
uint64_t seq;
- ovs_mutex_lock(&dp->queue_mutex);
- seq = seq_read(dp->queue_seq);
- if (find_nonempty_queue(dp)) {
+ fat_rwlock_rdlock(&dp->queue_rwlock);
+
+ if (!dp_netdev_recv_check(dp, handler_id)) {
+ goto out;
+ }
+
+ q = &dp->handler_queues[handler_id];
+ ovs_mutex_lock(&q->mutex);
+ seq = seq_read(q->seq);
+ if (q->head != q->tail) {
poll_immediate_wake();
} else {
- seq_wait(dp->queue_seq, seq);
+ seq_wait(q->seq, seq);
}
- ovs_mutex_unlock(&dp->queue_mutex);
+
+ ovs_mutex_unlock(&q->mutex);
+
+out:
+ fat_rwlock_unlock(&dp->queue_rwlock);
}
static void
{
struct dpif_netdev *dpif_netdev = dpif_netdev_cast(dpif);
+ fat_rwlock_wrlock(&dpif_netdev->dp->queue_rwlock);
dp_netdev_purge_queues(dpif_netdev->dp);
+ fat_rwlock_unlock(&dpif_netdev->dp->queue_rwlock);
}
\f
/* Creates and returns a new 'struct dp_netdev_actions', with a reference count
struct dp_netdev_actions *netdev_actions;
netdev_actions = xmalloc(sizeof *netdev_actions);
- ovs_refcount_init(&netdev_actions->ref_cnt);
netdev_actions->actions = xmemdup(actions, size);
netdev_actions->size = size;
return netdev_actions;
}
-/* Increments 'actions''s refcount. */
struct dp_netdev_actions *
-dp_netdev_actions_ref(const struct dp_netdev_actions *actions_)
+dp_netdev_flow_get_actions(const struct dp_netdev_flow *flow)
{
- struct dp_netdev_actions *actions;
-
- actions = CONST_CAST(struct dp_netdev_actions *, actions_);
- if (actions) {
- ovs_refcount_ref(&actions->ref_cnt);
- }
- return actions;
+ return ovsrcu_get(struct dp_netdev_actions *, &flow->actions);
}
-/* Decrements 'actions''s refcount and frees 'actions' if the refcount reaches
- * 0. */
-void
-dp_netdev_actions_unref(struct dp_netdev_actions *actions)
+static void
+dp_netdev_actions_free(struct dp_netdev_actions *actions)
{
- if (actions && ovs_refcount_unref(&actions->ref_cnt) == 1) {
- free(actions->actions);
- free(actions);
- }
+ free(actions->actions);
+ free(actions);
}
\f
static void *
static void
dp_netdev_flow_used(struct dp_netdev_flow *netdev_flow,
- const struct ofpbuf *packet)
+ const struct ofpbuf *packet,
+ const struct flow *key)
{
- uint16_t tcp_flags = packet_get_tcp_flags(packet, &netdev_flow->flow);
+ uint16_t tcp_flags = ntohs(key->tcp_flags);
long long int now = time_msec();
struct dp_netdev_flow_stats *bucket;
if (netdev_flow) {
struct dp_netdev_actions *actions;
- dp_netdev_flow_used(netdev_flow, packet);
-
- ovs_mutex_lock(&netdev_flow->mutex);
- actions = dp_netdev_actions_ref(netdev_flow->actions);
- ovs_mutex_unlock(&netdev_flow->mutex);
+ dp_netdev_flow_used(netdev_flow, packet, &key);
+ actions = dp_netdev_flow_get_actions(netdev_flow);
dp_netdev_execute_actions(dp, &key, packet, md,
actions->actions, actions->size);
- dp_netdev_actions_unref(actions);
- dp_netdev_flow_unref(netdev_flow);
dp_netdev_count_packet(dp, DP_STAT_HIT);
- } else {
+ } else if (dp->handler_queues) {
dp_netdev_count_packet(dp, DP_STAT_MISS);
- dp_netdev_output_userspace(dp, packet, DPIF_UC_MISS, &key, NULL);
+ dp_netdev_output_userspace(dp, packet,
+ flow_hash_5tuple(&key, 0) % dp->n_handlers,
+ DPIF_UC_MISS, &key, NULL);
}
}
static int
dp_netdev_output_userspace(struct dp_netdev *dp, struct ofpbuf *packet,
- int queue_no, const struct flow *flow,
+ int queue_no, int type, const struct flow *flow,
const struct nlattr *userdata)
- OVS_EXCLUDED(dp->queue_mutex)
+ OVS_EXCLUDED(dp->queue_rwlock)
{
- struct dp_netdev_queue *q = &dp->queues[queue_no];
+ struct dp_netdev_queue *q;
int error;
- ovs_mutex_lock(&dp->queue_mutex);
+ fat_rwlock_rdlock(&dp->queue_rwlock);
+ q = &dp->handler_queues[queue_no];
+ ovs_mutex_lock(&q->mutex);
if (q->head - q->tail < MAX_QUEUE_LEN) {
struct dp_netdev_upcall *u = &q->upcalls[q->head++ & QUEUE_MASK];
struct dpif_upcall *upcall = &u->upcall;
struct ofpbuf *buf = &u->buf;
size_t buf_size;
- upcall->type = queue_no;
+ upcall->type = type;
/* Allocate buffer big enough for everything. */
buf_size = ODPUTIL_FLOW_KEY_BYTES;
upcall->packet = *packet;
ofpbuf_use(packet, NULL, 0);
- seq_change(dp->queue_seq);
+ seq_change(q->seq);
error = 0;
} else {
dp_netdev_count_packet(dp, DP_STAT_LOST);
error = ENOBUFS;
}
- ovs_mutex_unlock(&dp->queue_mutex);
+ ovs_mutex_unlock(&q->mutex);
+ fat_rwlock_unlock(&dp->queue_rwlock);
return error;
}
if (!may_steal) {
packet = ofpbuf_clone_with_headroom(packet, DP_NETDEV_HEADROOM);
}
- dp_netdev_output_userspace(aux->dp, packet, DPIF_UC_ACTION, aux->key,
+ dp_netdev_output_userspace(aux->dp, packet,
+ flow_hash_5tuple(aux->key, 0)
+ % aux->dp->n_handlers,
+ DPIF_UC_ACTION, aux->key,
userdata);
if (!may_steal) {
ofpbuf_uninit(packet);
dpif_netdev_execute,
NULL, /* operate */
dpif_netdev_recv_set,
+ dpif_netdev_handlers_set,
dpif_netdev_queue_to_priority,
dpif_netdev_recv,
dpif_netdev_recv_wait,