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annotate packages/net/tcpip/current/include/machine/param.h @ 3292:7f8e529b4d82 default tip

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Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents 74dbf4c3f2e1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 //==========================================================================
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2 //
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3 // include/machine/param.h
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4 //
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5 // Architecture/platform specific parameters
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6 //
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7 //==========================================================================
2729
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8 // ####BSDALTCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // Portions of this software may have been derived from OpenBSD
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11 // or other sources, and if so are covered by the appropriate copyright
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12 // and license included herein.
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13 // -------------------------------------------
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14 // ####BSDALTCOPYRIGHTEND####
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15 //==========================================================================
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16 //#####DESCRIPTIONBEGIN####
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17 //
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18 // Author(s): gthomas
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19 // Contributors: gthomas
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20 // Date: 2000-01-10
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21 // Purpose:
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22 // Description:
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23 //
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24 //
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25 //####DESCRIPTIONEND####
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26 //
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27 //==========================================================================
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28
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29
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30 #ifndef _MACHINE_PARAM_H_
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31 #define _MACHINE_PARAM_H_
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32
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33 #include <pkgconf/net.h>
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34
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35 /*
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36 * Constants related to network buffer management.
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37 * MCLBYTES must be no larger than CLBYTES (the software page size), and,
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38 * on machines that exchange pages of input or output buffers with mbuf
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39 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
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40 * of the hardware page size.
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41 */
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42 #define MSIZE 128 /* size of an mbuf */
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43 #define MCLSHIFT 11 /* convert bytes to m_buf clusters */
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44 #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
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45 #define MCLOFSET (MCLBYTES - 1) /* offset within a m_buf cluster */
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46 #define CLBYTES 4096 /* size of actual cluster */
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47
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48 /*
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49 * Round p (pointer or byte index) up to a correctly-aligned value
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50 * for all data types (int, long, ...). The result is u_int and
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51 * must be cast to any desired pointer type.
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52 */
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53 #define ALIGNBYTES (sizeof(int) - 1)
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54 #define ALIGN(p) (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
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55
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56 // These symbols are used in the IPV6 stuff
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57 // (be more defensive about external setup)
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58 #ifdef __linux__
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59 #undef __linux__
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60 #endif
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61 #ifdef __bsdi__
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62 #undef __bsdi__
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63 #endif
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64 #ifdef __FreeBSD__
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65 #undef __FreeBSD__
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66 #endif
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67 #ifdef __OpenBSD__
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68 #undef __OpenBSD__
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69 #endif
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70 #ifdef __NetBSD__
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71 #undef __NetBSD__
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72 #endif
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73
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74
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75 #define __linux__ 0
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76 #define __bsdi__ 0
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77 #define __FreeBSD__ 0
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78 #define __OpenBSD__ 1
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79 #define __NetBSD__ 0
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80
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81 // These definitions here to avoid needing <sys/systm.h>
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82 // This probably doesn't belong here, but we need these definitions
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83 #include <lib/libkern/libkern.h>
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84 #define SCARG(p,k) ((p)->k.datum) /* get arg from args pointer */
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85 #include <stdarg.h>
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86
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87 // TEMP
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88
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89 #include <cyg/infra/diag.h>
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90 #include <cyg/hal/hal_intr.h>
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91 #include <cyg/kernel/kapi.h>
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92 #include <cyg/io/file.h>
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93
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94 struct net_stats {
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95 int count;
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96 cyg_uint32 min_time, max_time, total_time;
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97 };
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98
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99 #ifdef CYGDBG_NET_TIMING_STATS
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100 #define START_STATS() \
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101 cyg_uint32 start_time, end_time, elapsed_time; \
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102 HAL_CLOCK_READ(&start_time);
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103 #define FINISH_STATS(stats) \
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104 HAL_CLOCK_READ(&end_time); \
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105 if (end_time < start_time) { \
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106 elapsed_time = (end_time+CYGNUM_KERNEL_COUNTERS_RTC_PERIOD) - start_time; \
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107 } else { \
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108 elapsed_time = end_time - start_time; \
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109 } \
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110 if (stats.min_time == 0) { \
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111 stats.min_time = 0x7FFFFFFF; \
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112 } \
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113 if (elapsed_time < stats.min_time) \
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114 stats.min_time = elapsed_time; \
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115 if (elapsed_time > stats.max_time) \
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116 stats.max_time = elapsed_time; \
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117 stats.total_time += elapsed_time; \
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118 stats.count++;
199
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119 #else
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120 #define START_STATS()
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121 #define FINISH_STATS(X)
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122 #endif
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123
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124 // timeout support
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125 typedef void (timeout_fun)(void *);
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126 extern cyg_uint32 timeout(timeout_fun *fun, void *arg, cyg_int32 delta);
112
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127 extern void untimeout(timeout_fun *fun, void *arg);
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128 extern int uiomove(caddr_t cp, int n, struct uio *uio);
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129 extern int copyout(const void *s, void *d, size_t len);
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130 extern int copyin(const void *s, void *d, size_t len);
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131 extern void ovbcopy(const void *s, void *d, size_t len);
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132 extern void get_mono_time(void);
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133 extern int arc4random(void);
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134 extern void get_random_bytes(void *buf, size_t len);
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135
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136 extern void *hashinit(int elements, int type, int flags, u_long *hashmask);
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137
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138 #endif // _MACHINE_PARAM_H_