Пример #1
0
struct inpcbgroup *
in6_pcbgroup_bytuple(struct inpcbinfo *pcbinfo, const struct in6_addr *laddrp,
    u_short lport, const struct in6_addr *faddrp, u_short fport)
{
	uint32_t hash;

	/*
	 * RSS note: we pass foreign addr/port as source, and local addr/port
	 * as destination, as we want to align with what the hardware is
	 * doing.
	 */
	switch (pcbinfo->ipi_hashfields) {
	case IPI_HASHFIELDS_4TUPLE:
#ifdef RSS
		hash = rss_hash_ip6_4tuple(faddrp, fport, laddrp, lport);
#else
		hash = faddrp->s6_addr32[3] ^ fport;
#endif
		break;

	case IPI_HASHFIELDS_2TUPLE:
#ifdef RSS
		hash = rss_hash_ip6_2tuple(faddrp, laddrp);
#else
		hash = faddrp->s6_addr32[3] ^ laddrp->s6_addr32[3];
#endif
		break;

	default:
		hash = 0;
	}
	return (&pcbinfo->ipi_pcbgroups[in6_pcbgroup_getbucket(pcbinfo,
	    hash)]);
}
Пример #2
0
/*
 * Map a (hashtype, hash) tuple into a connection group, or NULL if the hash 
 * information is insufficient to identify the pcbgroup.  This might occur if
 * a TCP packet turnsup with a 2-tuple hash, or if an RSS hash is present but
 * RSS is not compiled into the kernel.
 */
struct inpcbgroup *
in6_pcbgroup_byhash(struct inpcbinfo *pcbinfo, u_int hashtype, uint32_t hash)
{

#ifdef RSS
	if ((pcbinfo->ipi_hashfields == IPI_HASHFIELDS_4TUPLE &&
	    hashtype == M_HASHTYPE_RSS_TCP_IPV6) ||
	    (pcbinfo->ipi_hashfields == IPI_HASHFIELDS_4TUPLE &&
	    hashtype == M_HASHTYPE_RSS_UDP_IPV6) ||
	    (pcbinfo->ipi_hashfields == IPI_HASHFIELDS_2TUPLE &&
	    hashtype == M_HASHTYPE_RSS_IPV6))
		return (&pcbinfo->ipi_pcbgroups[
		    in6_pcbgroup_getbucket(pcbinfo, hash)]);
#endif
	return (NULL);
}
Пример #3
0
struct inpcbgroup *
in6_pcbgroup_bytuple(struct inpcbinfo *pcbinfo, const struct in6_addr *laddrp,
    u_short lport, const struct in6_addr *faddrp, u_short fport)
{
	uint32_t hash;

	switch (pcbinfo->ipi_hashfields) {
	case IPI_HASHFIELDS_4TUPLE:
		hash = faddrp->s6_addr32[3] ^ fport;
		break;

	case IPI_HASHFIELDS_2TUPLE:
		hash = faddrp->s6_addr32[3] ^ laddrp->s6_addr32[3];
		break;

	default:
		hash = 0;
	}
	return (&pcbinfo->ipi_pcbgroups[in6_pcbgroup_getbucket(pcbinfo,
	    hash)]);
}