/* Global lock that protects all flow table operations. */
struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER;
-unsigned flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT;
+unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT;
enum ofproto_flow_miss_model flow_miss_model = OFPROTO_HANDLE_MISS_AUTO;
-size_t n_handlers;
+size_t n_handlers, n_revalidators;
/* Map from datapath name to struct ofproto, for use by unixctl commands. */
static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos);
/* Sets the number of flows at which eviction from the kernel flow table
* will occur. */
void
-ofproto_set_flow_eviction_threshold(unsigned threshold)
+ofproto_set_flow_limit(unsigned limit)
{
- flow_eviction_threshold = MAX(OFPROTO_FLOW_EVICTION_THRESHOLD_MIN,
- threshold);
+ ofproto_flow_limit = limit;
}
/* Sets the path for handling flow misses. */
}
}
-/* Sets number of upcall handler threads. The default is
- * (number of online cores - 2). */
void
-ofproto_set_threads(size_t n_handlers_)
+ofproto_set_threads(size_t n_handlers_, size_t n_revalidators_)
{
- int threads = MAX(count_cpu_cores() - 2, 1);
- n_handlers = n_handlers_ ? n_handlers_ : threads;
+ int threads = MAX(count_cpu_cores(), 2);
+
+ n_revalidators = n_revalidators_;
+ n_handlers = n_handlers_;
+
+ if (!n_revalidators) {
+ n_revalidators = n_handlers
+ ? MAX(threads - (int) n_handlers, 1)
+ : threads / 4 + 1;
+ }
+
+ if (!n_handlers) {
+ n_handlers = MAX(threads - (int) n_revalidators, 1);
+ }
}
void
}
/* Checks whether 'table_id' is 0xff or a valid table ID in 'ofproto'. Returns
- * 0 if 'table_id' is OK, otherwise an OpenFlow error code. */
-static enum ofperr
+ * true if 'table_id' is OK, false otherwise. */
+static bool
check_table_id(const struct ofproto *ofproto, uint8_t table_id)
{
- return (table_id == 0xff || table_id < ofproto->n_tables
- ? 0
- : OFPERR_OFPBRC_BAD_TABLE_ID);
-
+ return table_id == OFPTT_ALL || table_id < ofproto->n_tables;
}
static struct oftable *
OVS_REQUIRES(ofproto_mutex)
{
struct oftable *table;
- enum ofperr error;
+ enum ofperr error = 0;
rule_collection_init(rules);
- error = check_table_id(ofproto, criteria->table_id);
- if (error) {
+ if (!check_table_id(ofproto, criteria->table_id)) {
+ error = OFPERR_OFPBRC_BAD_TABLE_ID;
goto exit;
}
OVS_REQUIRES(ofproto_mutex)
{
struct oftable *table;
- int error;
+ int error = 0;
rule_collection_init(rules);
- error = check_table_id(ofproto, criteria->table_id);
- if (error) {
+ if (!check_table_id(ofproto, criteria->table_id)) {
+ error = OFPERR_OFPBRC_BAD_TABLE_ID;
goto exit;
}
struct cls_rule cr;
struct rule *rule;
uint8_t table_id;
- int error;
+ int error = 0;
- error = check_table_id(ofproto, fm->table_id);
- if (error) {
+ if (!check_table_id(ofproto, fm->table_id)) {
+ error = OFPERR_OFPBRC_BAD_TABLE_ID;
return error;
}