sys/netinet/tcp_private.h

   1 /*      $NetBSD: tcp_private.h,v 1.2 2008/04/23 06:09:05 thorpej Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _NETINET_TCP_PRIVATE_H_
  33 #define _NETINET_TCP_PRIVATE_H_
  34
  35 #ifdef _KERNEL
  36 #include <net/net_stats.h>
  37
  38 extern  percpu_t *tcpstat_percpu;
  39
  40 #define TCP_STAT_GETREF()       _NET_STAT_GETREF(tcpstat_percpu)
  41 #define TCP_STAT_PUTREF()       _NET_STAT_PUTREF(tcpstat_percpu)
  42
  43 #define TCP_STATINC(x)          _NET_STATINC(tcpstat_percpu, x)
  44 #define TCP_STATADD(x, v)       _NET_STATADD(tcpstat_percpu, x, v)
  45
  46 #ifdef __NO_STRICT_ALIGNMENT
  47 #define TCP_HDR_ALIGNED_P(th)   1
  48 #else
  49 #define TCP_HDR_ALIGNED_P(th)   ((((vaddr_t)(th)) & 3) == 0)
  50 #endif /* __NO_STRICT_ALIGNMENT */
  51 #endif /* _KERNEL */
  52
  53 #endif /* !_NETINET_TCP_PRIVATE_H_ */