Function rss_hash2cpuid

freebsd/net/rss_config.c:356–371

* netisr CPU affinity lookup given just the hash and hashtype. */

 * netisr CPU affinity lookup given just the hash and hashtype.
 */
u_int
rss_hash2cpuid(uint32_t hash_val, uint32_t hash_type)
{

	switch (hash_type) {
	case M_HASHTYPE_RSS_IPV4:
	case M_HASHTYPE_RSS_TCP_IPV4:
	case M_HASHTYPE_RSS_UDP_IPV4:
	case M_HASHTYPE_RSS_IPV6:
	case M_HASHTYPE_RSS_TCP_IPV6:
	case M_HASHTYPE_RSS_UDP_IPV6:
		return (rss_getcpu(rss_getbucket(hash_val)));
	default:
		return (NETISR_CPUID_NONE);
	}
}

/*
 * Query the RSS bucket associated with the given hash value and