/*- * Copyright (c) 2010-2011 Juniper Networks, Inc. * All rights reserved. * * This software was developed by Robert N. M. Watson under contract * to Juniper Networks, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _NETINET_IN_RSS_H_ #define _NETINET_IN_RSS_H_ #include <netinet/in.h> /* in_addr_t */ /* * Network stack interface to generate a hash for a protocol tuple. */ uint32_t rss_hash_ip4_4tuple(struct in_addr src, u_short srcport, struct in_addr dst, u_short dstport); uint32_t rss_hash_ip4_2tuple(struct in_addr src, struct in_addr dst); /* * Functions to calculate a software RSS hash for a given mbuf or * packet detail. */ int rss_mbuf_software_hash_v4(const struct mbuf *m, int dir, uint32_t *hashval, uint32_t *hashtype); int rss_proto_software_hash_v4(struct in_addr src, struct in_addr dst, u_short src_port, u_short dst_port, int proto, uint32_t *hashval, uint32_t *hashtype); struct mbuf * rss_soft_m2cpuid_v4(struct mbuf *m, uintptr_t source, u_int *cpuid); uint32_t xps_proto_software_hash_v4(struct in_addr s, struct in_addr d, u_short sp, u_short dp, int proto, uint32_t *hashtype); #endif /* !_NETINET_IN_RSS_H_ */