1b2bdc62aSAdrian Chadd /*- 2b2bdc62aSAdrian Chadd * Copyright (c) 2010-2011 Juniper Networks, Inc. 3b2bdc62aSAdrian Chadd * All rights reserved. 4b2bdc62aSAdrian Chadd * 5b2bdc62aSAdrian Chadd * This software was developed by Robert N. M. Watson under contract 6b2bdc62aSAdrian Chadd * to Juniper Networks, Inc. 7b2bdc62aSAdrian Chadd * 8b2bdc62aSAdrian Chadd * Redistribution and use in source and binary forms, with or without 9b2bdc62aSAdrian Chadd * modification, are permitted provided that the following conditions 10b2bdc62aSAdrian Chadd * are met: 11b2bdc62aSAdrian Chadd * 1. Redistributions of source code must retain the above copyright 12b2bdc62aSAdrian Chadd * notice, this list of conditions and the following disclaimer. 13b2bdc62aSAdrian Chadd * 2. Redistributions in binary form must reproduce the above copyright 14b2bdc62aSAdrian Chadd * notice, this list of conditions and the following disclaimer in the 15b2bdc62aSAdrian Chadd * documentation and/or other materials provided with the distribution. 16b2bdc62aSAdrian Chadd * 17b2bdc62aSAdrian Chadd * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18b2bdc62aSAdrian Chadd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19b2bdc62aSAdrian Chadd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20b2bdc62aSAdrian Chadd * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21b2bdc62aSAdrian Chadd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22b2bdc62aSAdrian Chadd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23b2bdc62aSAdrian Chadd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24b2bdc62aSAdrian Chadd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25b2bdc62aSAdrian Chadd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26b2bdc62aSAdrian Chadd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27b2bdc62aSAdrian Chadd * SUCH DAMAGE. 28b2bdc62aSAdrian Chadd */ 29b2bdc62aSAdrian Chadd 30b2bdc62aSAdrian Chadd #ifndef _NETINET6_IN6_RSS_H_ 31b2bdc62aSAdrian Chadd #define _NETINET6_IN6_RSS_H_ 32b2bdc62aSAdrian Chadd 33b2bdc62aSAdrian Chadd #include <netinet/in.h> /* in_addr_t */ 34b2bdc62aSAdrian Chadd 35b2bdc62aSAdrian Chadd /* 36b2bdc62aSAdrian Chadd * Network stack interface to generate a hash for a protocol tuple. 37b2bdc62aSAdrian Chadd */ 38b2bdc62aSAdrian Chadd uint32_t rss_hash_ip6_4tuple(const struct in6_addr *src, u_short srcport, 39b2bdc62aSAdrian Chadd const struct in6_addr *dst, u_short dstport); 40b2bdc62aSAdrian Chadd uint32_t rss_hash_ip6_2tuple(const struct in6_addr *src, 41b2bdc62aSAdrian Chadd const struct in6_addr *dst); 42b2bdc62aSAdrian Chadd 4320dbdf88SAdrian Chadd /* 4420dbdf88SAdrian Chadd * Functions to calculate a software RSS hash for a given mbuf or 4520dbdf88SAdrian Chadd * packet detail. 4620dbdf88SAdrian Chadd */ 470be18915SAdrian Chadd int rss_mbuf_software_hash_v6(const struct mbuf *m, int dir, 480be18915SAdrian Chadd uint32_t *hashval, uint32_t *hashtype); 4920dbdf88SAdrian Chadd int rss_proto_software_hash_v6(const struct in6_addr *src, 5020dbdf88SAdrian Chadd const struct in6_addr *dst, u_short src_port, 5120dbdf88SAdrian Chadd u_short dst_port, int proto, uint32_t *hashval, 5220dbdf88SAdrian Chadd uint32_t *hashtype); 530be18915SAdrian Chadd struct mbuf * rss_soft_m2cpuid_v6(struct mbuf *m, uintptr_t source, 540be18915SAdrian Chadd u_int *cpuid); 55*0c325f53SAlexander V. Chernikov uint32_t xps_proto_software_hash_v6(const struct in6_addr *s, 56*0c325f53SAlexander V. Chernikov const struct in6_addr *d, u_short sp, u_short dp, 57*0c325f53SAlexander V. Chernikov int proto, uint32_t *hashtype); 580be18915SAdrian Chadd 59b2bdc62aSAdrian Chadd #endif /* !_NETINET6_IN6_RSS_H_ */ 60