libcfs/include/libcfs/winnt/libcfs.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * GPL HEADER START
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   6  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 only,
  10  * as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License version 2 for more details (a copy is included
  16  * in the LICENSE file that accompanied this code).
  17  *
  18  * You should have received a copy of the GNU General Public License
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  28 /*
  29  * Copyright  2008 Sun Microsystems, Inc. All rights reserved
  30  * Use is subject to license terms.
  31  */
  32 /*
  33  * This file is part of Lustre, http://www.lustre.org/
  34  * Lustre is a trademark of Sun Microsystems, Inc.
  35  */
  36
  37 #ifndef __LIBCFS_WINNT_LIBCFS_H__
  38 #define __LIBCFS_WINNT_LIBCFS_H__
  39
  40 #ifndef __LIBCFS_LIBCFS_H__
  41 #error Do not #include this file directly. #include <libcfs/libcfs.h> instead
  42 #endif
  43
  44 /* workgroud for VC compiler */
  45 #ifndef __FUNCTION__
  46 #define __FUNCTION__ "generic"
  47 #endif
  48
  49 #include <libcfs/winnt/winnt-types.h>
  50 #include <libcfs/portals_utils.h>
  51 #include <libcfs/winnt/winnt-time.h>
  52 #include <libcfs/winnt/winnt-lock.h>
  53 #include <libcfs/winnt/winnt-mem.h>
  54 #include <libcfs/winnt/winnt-prim.h>
  55 #include <libcfs/winnt/winnt-fs.h>
  56 #include <libcfs/winnt/winnt-tcpip.h>
  57
  58 struct ptldebug_header {
  59         __u32 ph_len;
  60         __u32 ph_flags;
  61         __u32 ph_subsys;
  62         __u32 ph_mask;
  63         __u32 ph_cpu_id;
  64         __u32 ph_sec;
  65         __u64 ph_usec;
  66         __u32 ph_stack;
  67         __u32 ph_pid;
  68         __u32 ph_extern_pid;
  69         __u32 ph_line_num;
  70 } __attribute__((packed));
  71
  72 #ifdef __KERNEL__
  73
  74 enum {
  75         /* if you change this, update darwin-util.c:cfs_stack_trace_fill() */
  76         CFS_STACK_TRACE_DEPTH = 16
  77 };
  78
  79 struct cfs_stack_trace {
  80         void *frame[CFS_STACK_TRACE_DEPTH];
  81 };
  82
  83 static inline __u32 query_stack_size()
  84 {
  85     ULONG   LowLimit, HighLimit;
  86
  87     IoGetStackLimits(&LowLimit, &HighLimit);
  88     ASSERT(HighLimit > LowLimit);
  89
  90     return (__u32) (HighLimit - LowLimit);
  91 }
  92 #else
  93 static inline __u32 query_stack_size()
  94 {
  95    return 4096;
  96 }
  97 #endif
  98
  99
 100 #ifndef THREAD_SIZE
 101 # define THREAD_SIZE query_stack_size()
 102 #endif
 103
 104 #define LUSTRE_TRACE_SIZE (THREAD_SIZE >> 5)
 105
 106 #ifdef __KERNEL__
 107 # ifdef  __ia64__
 108 #  define CDEBUG_STACK() (THREAD_SIZE -                         \
 109                           ((ulong_ptr)__builtin_dwarf_cfa() &   \
 110                            (THREAD_SIZE - 1)))
 111 # else
 112 #  define CDEBUG_STACK (IoGetRemainingStackSize())
 113 #  error "This doesn't seem right; CDEBUG_STACK should grow with the stack"
 114 # endif /* __ia64__ */
 115
 116 #define CHECK_STACK()                                                   \
 117 do {                                                                    \
 118         unsigned long _stack = CDEBUG_STACK();                          \
 119                                                                         \
 120         if (_stack > 3*THREAD_SIZE/4 && _stack > libcfs_stack) {        \
 121                 libcfs_stack = _stack;                                  \
 122                 libcfs_debug_msg(NULL, DEBUG_SUBSYSTEM, D_WARNING,      \
 123                                  __FILE__, NULL, __LINE__,              \
 124                                  "maximum lustre stack %lu\n", _stack); \
 125         }                                                               \
 126 } while (0)
 127 #else /* !__KERNEL__ */
 128 #define CHECK_STACK() do { } while(0)
 129 #define CDEBUG_STACK() (0L)
 130 #endif /* __KERNEL__ */
 131
 132 /* initial pid  */
 133 #define LUSTRE_LNET_PID          12345
 134
 135 #define ENTRY_NESTING_SUPPORT (0)
 136 #define ENTRY_NESTING   do {;} while (0)
 137 #define EXIT_NESTING   do {;} while (0)
 138 #define __current_nesting_level() (0)
 139
 140 #endif /* _WINNT_LIBCFS_H */