int refcount;
};
static struct shash dpif_classes = SHASH_INITIALIZER(&dpif_classes);
+static struct sset dpif_blacklist = SSET_INITIALIZER(&dpif_blacklist);
/* Rate limit for individual messages going to or from the datapath, output at
* DBG level. This is very high because, if these are enabled, it is because
{
struct registered_dpif_class *registered_class;
+ if (sset_contains(&dpif_blacklist, new_class->type)) {
+ VLOG_DBG("attempted to register blacklisted provider: %s",
+ new_class->type);
+ return EINVAL;
+ }
+
if (shash_find(&dpif_classes, new_class->type)) {
VLOG_WARN("attempted to register duplicate datapath provider: %s",
new_class->type);
return 0;
}
+/* Blacklists a provider. Causes future calls of dp_register_provider() with
+ * a dpif_class which implements 'type' to fail. */
+void
+dp_blacklist_provider(const char *type)
+{
+ sset_add(&dpif_blacklist, type);
+}
+
/* Clears 'types' and enumerates the types of all currently registered datapath
* providers into it. The caller must first initialize the sset. */
void
ds_destroy(&flow);
free(packet);
+ } else if (error && error != EAGAIN) {
+ log_operation(dpif, "recv", error);
}
return error;
}
}
/* Translates OpenFlow queue ID 'queue_id' (in host byte order) into a priority
- * value for use in the OVS_ACTION_ATTR_SET_PRIORITY action. On success,
- * returns 0 and stores the priority into '*priority'. On failure, returns a
- * positive errno value and stores 0 into '*priority'. */
+ * value used for setting packet priority.
+ * On success, returns 0 and stores the priority into '*priority'.
+ * On failure, returns a positive errno value and stores 0 into '*priority'. */
int
dpif_queue_to_priority(const struct dpif *dpif, uint32_t queue_id,
uint32_t *priority)