1/*-
2 * Copyright (c) 2002-2007 Neterion, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef XGE_OS_PAL_H
30#define XGE_OS_PAL_H
31
32#include <dev/nxge/include/xge-defs.h>
33
34__EXTERN_BEGIN_DECLS
35
36/*--------------------------- platform switch ------------------------------*/
37
38/* platform specific header */
39#include <dev/nxge/xge-osdep.h>
40
41#if !defined(XGE_OS_PLATFORM_64BIT) && !defined(XGE_OS_PLATFORM_32BIT)
42#error "either 32bit or 64bit switch must be defined!"
43#endif
44
45#if !defined(XGE_OS_HOST_BIG_ENDIAN) && !defined(XGE_OS_HOST_LITTLE_ENDIAN)
46#error "either little endian or big endian switch must be defined!"
47#endif
48
49#if defined(XGE_OS_PLATFORM_64BIT)
50#define XGE_OS_MEMORY_DEADCODE_PAT  0x5a5a5a5a5a5a5a5a
51#else
52#define XGE_OS_MEMORY_DEADCODE_PAT  0x5a5a5a5a
53#endif
54
55#define XGE_OS_TRACE_MSGBUF_MAX     512
56typedef struct xge_os_tracebuf_t {
57	int     wrapped_once;     /* circular buffer been wrapped */
58	int     timestamp;        /* whether timestamps are enabled */
59	volatile int    offset;           /* offset within the tracebuf */
60	int     size;             /* total size of trace buffer */
61	char        msg[XGE_OS_TRACE_MSGBUF_MAX]; /* each individual buffer */
62	int     msgbuf_max;   /* actual size of msg buffer */
63	char        *data;            /* pointer to data buffer */
64} xge_os_tracebuf_t;
65extern xge_os_tracebuf_t *g_xge_os_tracebuf;
66
67#ifdef XGE_TRACE_INTO_CIRCULAR_ARR
68extern xge_os_tracebuf_t *g_xge_os_tracebuf;
69extern char *dmesg_start;
70
71/* Calculate the size of the msg and copy it into the global buffer */
72#define __xge_trace(tb) { \
73	int msgsize = xge_os_strlen(tb->msg) + 2; \
74	int offset = tb->offset; \
75	if (msgsize != 2 && msgsize < tb->msgbuf_max) { \
76	    int leftsize =  tb->size - offset; \
77	    if ((msgsize + tb->msgbuf_max) > leftsize) { \
78	        xge_os_memzero(tb->data + offset, leftsize); \
79	        offset = 0; \
80	        tb->wrapped_once = 1; \
81	    } \
82	    xge_os_memcpy(tb->data + offset, tb->msg, msgsize-1); \
83	    *(tb->data + offset + msgsize-1) = '\n'; \
84	    *(tb->data + offset + msgsize) = 0; \
85	    offset += msgsize; \
86	    tb->offset = offset; \
87	    dmesg_start = tb->data + offset; \
88	    *tb->msg = 0; \
89	} \
90}
91
92#define xge_os_vatrace(tb, fmt) { \
93	if (tb != NULL) { \
94	    char *_p = tb->msg; \
95	    if (tb->timestamp) { \
96	        xge_os_timestamp(tb->msg); \
97	        _p = tb->msg + xge_os_strlen(tb->msg); \
98	    } \
99	    xge_os_vasprintf(_p, fmt); \
100	    __xge_trace(tb); \
101	} \
102}
103
104#ifdef __GNUC__
105#define xge_os_trace(tb, fmt...) { \
106	if (tb != NULL) { \
107	    if (tb->timestamp) { \
108	        xge_os_timestamp(tb->msg); \
109	    } \
110	    xge_os_sprintf(tb->msg + xge_os_strlen(tb->msg), fmt); \
111	    __xge_trace(tb); \
112	} \
113}
114#endif /* __GNUC__ */
115
116#else
117#define xge_os_vatrace(tb, fmt)
118#ifdef __GNUC__
119#define xge_os_trace(tb, fmt...)
120#endif /* __GNUC__ */
121#endif
122
123__EXTERN_END_DECLS
124
125#endif /* XGE_OS_PAL_H */
126