58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#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);
|
|
|
|
#endif /* !_NETINET_IN_RSS_H_ */
|