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annotate packages/io/eth/current/src/net/eth_drv.c @ 1777:c16341b1bac6 default tip

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* Added execute permissions to files missed in conversion from CVS
author alexs
date Mon, 12 Oct 2009 02:26:09 +0100
parents 9bf998a57d30
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 //==========================================================================
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2 //
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3 // src/net/eth_drv.c
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4 //
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5 // Hardware independent ethernet driver
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 // Copyright (C) 2002, 2003 Gary Thomas
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13 //
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14 // eCos is free software; you can redistribute it and/or modify it under
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15 // the terms of the GNU General Public License as published by the Free
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16 // Software Foundation; either version 2 or (at your option) any later version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License along
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24 // with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use macros
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28 // or inline functions from this file, or you compile this file and link it
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29 // with other works to produce a work based on this file, this file does not
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30 // by itself cause the resulting work to be covered by the GNU General Public
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31 // License. However the source code for this file must still be made available
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32 // in accordance with section (3) of the GNU General Public License.
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33 //
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34 // This exception does not invalidate any other reasons why a work based on
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35 // this file might be covered by the GNU General Public License.
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36 //
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37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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38 // at http://sources.redhat.com/ecos/ecos-license/
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39 // -------------------------------------------
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40 //####ECOSGPLCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): gthomas
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45 // Contributors: gthomas
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46 // Date: 2000-01-10
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47 // Purpose: Hardware independent ethernet driver
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48 // Description:
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49 //
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50 //
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51 //####DESCRIPTIONEND####
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52 //
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53 //==========================================================================
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54
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55 // High-level ethernet driver
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56
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57 #include <sys/param.h>
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58 #include <sys/errno.h>
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59 #include <sys/ioctl.h>
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60 #include <sys/mbuf.h>
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61 #include <sys/socket.h>
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62
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63 #include <net/if.h>
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64 #include <net/if_dl.h>
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65 #include <net/if_types.h>
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66 #include <net/netisr.h>
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67
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68 #ifdef INET
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69 #include <netinet/in.h>
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70 #include <netinet/in_systm.h>
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71 #include <netinet/in_var.h>
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72 #include <netinet/ip.h>
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73 #include <netinet/if_ether.h>
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74 #endif
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75
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76 #ifndef NBPFILTER
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77 #define NBPFILTER 0
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78 #endif
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79
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80 #if NBPFILTER > 0
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81 #include <net/bpf.h>
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82 #include <net/bpfdesc.h>
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83 #endif
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84
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85 #include <cyg/infra/cyg_ass.h>
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86 #include <cyg/hal/drv_api.h>
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87 #include <pkgconf/hal.h>
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88 #include <cyg/hal/hal_if.h>
126
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89 #include <pkgconf/io_eth_drivers.h> // module configury; SIMULATED_FAILURES
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90 #include <pkgconf/net.h> // CYGPKG_NET_FAST_THREAD_TICKLE_DEVS?
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91
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92 #include <cyg/io/eth/eth_drv.h>
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93 #include <cyg/io/eth/netdev.h>
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94
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95 #ifndef min
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96 #define min( _x_, _y_ ) ((_x_) < (_y_) ? (_x_) : (_y_))
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97 #endif
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98
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99 // ------------------------------------------------------------------------
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100 #ifdef CYGPKG_IO_ETH_DRIVERS_SIMULATED_FAILURES
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101
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102 #define noLOG_RANDOM 32 // so you can tell this is really being random
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103 #ifdef LOG_RANDOM
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104 static struct {
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105 unsigned int *which;
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106 unsigned int random;
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107 unsigned int r100;
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108 } random_log[LOG_RANDOM];
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109
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110 static int random_index = 0;
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111 #endif
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112
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113 static unsigned int
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114 randomize( unsigned int *p )
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115 {
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116 unsigned int r100;
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117 HAL_CLOCK_READ( &r100 );
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118 r100 ^= *p;
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119 *p = (r100 * 1103515245) + 12345;
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120 r100 &= 127;
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121 if ( r100 >= 100 ) // spread the overflow around evenly
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122 r100 = 4 * (r100 - 100);
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123 if ( r100 >= 100 ) // and again - (125,126,127=>100,104,108)
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124 r100 = 12 * (r100 - 100); // =>(0,48,96)
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125 #ifdef LOG_RANDOM
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126 random_log[random_index].which = p;
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127 random_log[random_index].random = *p;
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128 random_log[random_index].r100 = r100;
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129 random_index++;
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130 random_index &= (LOG_RANDOM-1);
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131 #endif
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132 return r100;
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133 }
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134
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135 #define SIMULATE_FAIL_SEND 1
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136 #define SIMULATE_FAIL_RECV 2
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137 #define SIMULATE_FAIL_CORRUPT 3
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138
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139 static struct simulated_failure_state {
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140 struct eth_drv_sc *sc;
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141 unsigned int r_tx_fail;
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142 unsigned int r_rx_fail;
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143 unsigned int r_rx_corrupt;
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144 cyg_tick_count_t droptime;
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145 cyg_tick_count_t passtime;
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146 } simulated_failure_states[2] = {{0},{0}};
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147
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148 static int
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149 simulate_fail( struct eth_drv_sc *sc, int which )
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150 {
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151 struct simulated_failure_state *s;
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152
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153 for ( s = &simulated_failure_states[0]; s < &simulated_failure_states[2];
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154 s++ ) {
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155 if ( 0 == s->sc ) {
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156 s->sc = sc;
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157 s->r_tx_fail = (unsigned int)sc;
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158 s->r_rx_fail = (unsigned int)sc ^ 0x01234567;
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159 s->r_rx_corrupt = (unsigned int)sc ^ 0xdeadbeef;
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160 s->droptime = 0;
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161 s->passtime = 0;
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162 }
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163 if ( sc == s->sc )
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164 break;
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165 }
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166 if ( &simulated_failure_states[2] == s ) {
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167 CYG_FAIL( "No free slot in simulated_failure_states[]" );
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168 return 1; // always fail
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169 }
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170
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171 #ifdef CYGPKG_IO_ETH_DRIVERS_SIMULATE_LINE_CUT
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172 // Regardless of the question, we say "yes" during the period of
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173 // unpluggedness...
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174 {
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175 cyg_tick_count_t now = cyg_current_time();
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176 if ( now > s->droptime && 0 == s->passtime ) { // [initial condition]
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177 s->droptime = 0; // go into a passing phase
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178 (void)randomize( &s->r_tx_fail );
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179 (void)randomize( &s->r_rx_fail );
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180 (void)randomize( &s->r_rx_corrupt );
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181 s->passtime = s->r_tx_fail + s->r_rx_fail + s->r_rx_corrupt;
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182 s->passtime &= 0x3fff; // 16k cS is up to 160S, about 2.5 minutes
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183 s->passtime += now;
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184 }
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185 else if ( now > s->passtime && 0 == s->droptime ) {
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186 s->passtime = 0; // go into a dropping phase
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187 (void)randomize( &s->r_tx_fail );
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188 (void)randomize( &s->r_rx_fail );
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189 (void)randomize( &s->r_rx_corrupt );
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190 s->droptime = s->r_tx_fail + s->r_rx_fail + s->r_rx_corrupt;
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191 s->droptime &= 0x0fff; // 4k cS is up to 40S, about 1/2 a minute
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192 s->droptime += now;
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193 }
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194
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195 if ( now < s->droptime )
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196 return 1; // Say "no"
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197 }
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198 #endif
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199
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200 switch ( which ) {
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201 #ifdef CYGPKG_IO_ETH_DRIVERS_SIMULATE_DROP_TX
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202 case SIMULATE_FAIL_SEND: {
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203 unsigned int z = randomize( &s->r_tx_fail );
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204 return z < CYGPKG_IO_ETH_DRIVERS_SIMULATE_DROP_TX;
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205 }
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206 #endif
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207 #ifdef CYGPKG_IO_ETH_DRIVERS_SIMULATE_DROP_RX
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208 case SIMULATE_FAIL_RECV: {
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209 unsigned int z = randomize( &s->r_rx_fail );
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210 return z < CYGPKG_IO_ETH_DRIVERS_SIMULATE_DROP_RX;
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211 }
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212 #endif
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213 #ifdef CYGPKG_IO_ETH_DRIVERS_SIMULATE_CORRUPT_RX
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214 case SIMULATE_FAIL_CORRUPT: {
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215 unsigned int z = randomize( &s->r_rx_corrupt );
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216 return z < CYGPKG_IO_ETH_DRIVERS_SIMULATE_CORRUPT_RX;
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217 }
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218 #endif
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219 default:
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220 // do nothing - for when options above are not enabled.
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221 }
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222 return 0;
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223 }
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224
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225 #define noLOG_CORRUPTION 32 // so you can tell this is really being random
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226 #ifdef LOG_CORRUPTION
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227 static struct {
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228 int len;
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229 int thislen;
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230 int off;
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231 unsigned char xor;
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232 unsigned char idx;
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233 } corruption_log[LOG_CORRUPTION];
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234
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235 static int corruption_index = 0;
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236 #endif
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237
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238 static void
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239 simulate_fail_corrupt_sglist( struct eth_drv_sg *sg_list, int sg_len )
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240 {
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241 unsigned int z, len, i, off;
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242 HAL_CLOCK_READ( &z );
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243 z += simulated_failure_states[0].r_rx_corrupt;
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244 z += simulated_failure_states[1].r_rx_corrupt;
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245
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246 CYG_ASSERT( MAX_ETH_DRV_SG >= sg_len, "sg_len overflow in corrupt" );
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247
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248 for ( i = 0, len = 0; i < sg_len && sg_list[i].buf && sg_list[i].len; i++ )
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249 len =+ sg_list[i].len;
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250
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251 CYG_ASSERT( 1500 >= len, "sg...len > ether MTU" );
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252 if ( 14 >= len ) // normal ether header
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253 return;
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254
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255 off = z & 2047; // next (2^N-1) > MTU
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256 while ( off > len )
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257 off -= len;
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258
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259 for ( i = 0; i < sg_len && sg_list[i].buf && sg_list[i].len; i++ ) {
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260 if ( off < sg_list[i].len ) { // corrupt this one
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261 unsigned char *p = (unsigned char *)sg_list[i].buf;
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262 p[off] ^= (0xff & (z >> 11));
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263 #ifdef LOG_CORRUPTION
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264 corruption_log[corruption_index].len = len;
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265 corruption_log[corruption_index].thislen = sg_list[i].len;
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266 corruption_log[corruption_index].off = off;
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267 corruption_log[corruption_index].xor = (0xff & (z >> 11));
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268 corruption_log[corruption_index].idx = i;
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269 corruption_index++;
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270 corruption_index &= (LOG_CORRUPTION-1);
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271 #endif
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272 return;
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273 }
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274 off -= sg_list[i].len;
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275 }
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276 CYG_FAIL( "Didn't corrupt anything" );
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277 }
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278
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279 #endif // CYGPKG_IO_ETH_DRIVERS_SIMULATED_FAILURES
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280 // ------------------------------------------------------------------------
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281
208
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282 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
199
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283
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284 #include <cyg/hal/hal_if.h>
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285
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286 // Use with care! Local variable defined!
208
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287 #define START_CONSOLE() \
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288 { /* NEW BLOCK */ \
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289 int _cur_console = \
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290 CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT); \
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291 { \
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292 int i; \
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293 if ( CYGACC_CALL_IF_FLASH_CFG_OP( CYGNUM_CALL_IF_FLASH_CFG_GET, \
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294 "info_console_force", &i, \
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295 CYGNUM_FLASH_CFG_TYPE_CONFIG_BOOL ) ) { \
208
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296 if ( i ) { \
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297 if ( CYGACC_CALL_IF_FLASH_CFG_OP( CYGNUM_CALL_IF_FLASH_CFG_GET, \
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298 "info_console_number", &i, \
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299 CYGNUM_FLASH_CFG_TYPE_CONFIG_INT ) ){ \
208
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300 /* Then i is the console to force it to: */ \
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301 CYGACC_CALL_IF_SET_CONSOLE_COMM( i ); \
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302 } \
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303 } \
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304 } \
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305 }
199
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306
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307 #define END_CONSOLE() \
208
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308 CYGACC_CALL_IF_SET_CONSOLE_COMM(_cur_console); \
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309 } /* END BLOCK */
199
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310
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311 #else
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312 #define START_CONSOLE()
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313 #define END_CONSOLE()
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314 #endif
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315 // ------------------------------------------------------------------------
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316
208
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317 #ifdef CYGPKG_NET_FREEBSD_STACK
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318 extern char *_ioctl_name(u_long cmd);
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319 typedef void void_fun(void *);
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320 #endif
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321
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322 static int eth_drv_ioctl(struct ifnet *, u_long, caddr_t);
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323 static void eth_drv_send(struct ifnet *);
208
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324 static void eth_drv_start(struct eth_drv_sc *sc);
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325
191
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326 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
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327 int cyg_io_eth_net_debug = CYGDBG_IO_ETH_DRIVERS_DEBUG_VERBOSITY;
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328 #endif
115
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329
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330 // Interfaces exported to drivers
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331
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332 static void eth_drv_init(struct eth_drv_sc *sc, unsigned char *enaddr);
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333 static void eth_drv_recv(struct eth_drv_sc *sc, int total_len);
121
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334 static void eth_drv_tx_done(struct eth_drv_sc *sc, CYG_ADDRESS key, int status);
115
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335
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336 struct eth_drv_funs eth_drv_funs = {eth_drv_init, eth_drv_recv, eth_drv_tx_done};
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337
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338 //
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339 // This function is called during system initialization to register a
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340 // network interface with the system.
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341 //
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342 static void
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343 eth_drv_init(struct eth_drv_sc *sc, unsigned char *enaddr)
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344 {
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345 struct ifnet *ifp = &sc->sc_arpcom.ac_if;
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346 #ifdef CYGPKG_NET_FREEBSD_STACK
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347 int unit;
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348 char *np, *xp;
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349 #endif
115
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350
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351 // Set up hardware address
149
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352 if (NULL != enaddr)
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353 bcopy(enaddr, &sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN);
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354
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355 // Initialize ifnet structure
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356 ifp->if_softc = sc;
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357 ifp->if_start = eth_drv_send;
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358 ifp->if_ioctl = eth_drv_ioctl;
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359 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
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360 #ifdef IFF_NOTRAILERS
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361 ifp->if_flags |= IFF_NOTRAILERS;
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362 #endif
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363 #ifdef CYGPKG_NET_FREEBSD_STACK
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364 ifp->if_name = xp = ifp->if_xname;
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365 np = (char *)sc->dev_name;
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366 unit = 0;
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367 while (*np && !((*np >= '0') && (*np <= '9'))) *xp++ = *np++;
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368 if (*np) {
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369 *xp = '\0';
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370 while (*np) {
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371 unit = (unit * 10) + (*np++ - '0');
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372 }
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373 ifp->if_unit = unit;
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374 }
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375 ifp->if_init = (void_fun *)eth_drv_start;
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376 ifp->if_output = ether_output;
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377 #else
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378 bcopy((void *)sc->dev_name, ifp->if_xname, IFNAMSIZ);
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379 #endif
115
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380 sc->state = 0;
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381
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382 // Attach the interface
208
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383 #ifdef CYGPKG_NET_FREEBSD_STACK
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384 ether_ifattach(ifp, 0);
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385 #else
115
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386 if_attach(ifp);
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387 ether_ifattach(ifp);
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388 #endif
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389
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390 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_DIAG
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391 // Set up interfaces so debug environment can share this device
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392 {
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393 void *dbg = CYGACC_CALL_IF_DBG_DATA();
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394 if (!dbg) {
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395 CYGACC_CALL_IF_DBG_DATA_SET((void *)sc);
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396 }
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397 }
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398 #endif
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399 }
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400
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401 //
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402 // This [internal] function will be called to stop activity on an interface.
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403 //
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404 static void
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405 eth_drv_stop(struct eth_drv_sc *sc)
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406 {
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407 (sc->funs->stop)(sc);
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408 sc->state &= ~ETH_DRV_STATE_ACTIVE;
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409 }
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410
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411 //
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412 // This [internal] function will be called to start activity on an interface.
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413 //
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414 static void
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415 eth_drv_start(struct eth_drv_sc *sc)
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416 {
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417 struct ifnet *ifp = &sc->sc_arpcom.ac_if;
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418
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419 // Perform any hardware initialization
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420 (sc->funs->start)(sc, (unsigned char *)&sc->sc_arpcom.ac_enaddr, 0);
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421 #ifdef CYGPKG_NET_FREEBSD_STACK
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422 // resend multicast addresses if present
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423 if(ifp->if_multiaddrs.lh_first && ifp->if_ioctl) {
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parents: 251
diff changeset
424 int s = splimp();
251
c8e3659acd62 Fix from Red Hat: reconfigure multicast addresses if present on startup.
gthomas
parents: 210
diff changeset
425 ifp->if_ioctl(ifp, SIOCADDMULTI, 0);
c8e3659acd62 Fix from Red Hat: reconfigure multicast addresses if present on startup.
gthomas
parents: 210
diff changeset
426 splx(s);
c8e3659acd62 Fix from Red Hat: reconfigure multicast addresses if present on startup.
gthomas
parents: 210
diff changeset
427 }
256
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gthomas
parents: 251
diff changeset
428 #endif
115
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parents:
diff changeset
429 // Set 'running' flag, and clear output active flag.
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parents:
diff changeset
430 ifp->if_flags |= IFF_RUNNING;
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jlarmour
parents:
diff changeset
431 ifp->if_flags &= ~IFF_OACTIVE;
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parents:
diff changeset
432 sc->state |= ETH_DRV_STATE_ACTIVE;
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parents:
diff changeset
433 eth_drv_send(ifp); // Try and start up transmit
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parents:
diff changeset
434 }
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jlarmour
parents:
diff changeset
435
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jlarmour
parents:
diff changeset
436 //
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jlarmour
parents:
diff changeset
437 // This function supports "I/O control" operations on an interface.
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jlarmour
parents:
diff changeset
438 //
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jlarmour
parents:
diff changeset
439 static int
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parents:
diff changeset
440 eth_drv_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
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parents:
diff changeset
441 {
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diff changeset
442 struct eth_drv_sc *sc = ifp->if_softc;
208
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443 #ifndef CYGPKG_NET_FREEBSD_STACK
115
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444 struct ifaddr *ifa = (struct ifaddr *) data;
208
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diff changeset
445 #endif
115
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diff changeset
446 struct ifreq *ifr = (struct ifreq *)data;
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diff changeset
447 int s, error = 0;
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448
208
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449 // DEBUG
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450 #ifdef CYGPKG_NET_FREEBSD_STACK
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451 log(LOG_IOCTL, "%s: cmd: %s, data:\n", __FUNCTION__, _ioctl_name(cmd));
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452 log_dump(LOG_IOCTL, data, 32);
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453 #endif
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454 // DEBUG
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455
115
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456 s = splnet();
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457
208
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diff changeset
458 #ifdef CYGPKG_NET_FREEBSD_STACK
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diff changeset
459 if ((error = ether_ioctl(ifp, cmd, data)) > 0) {
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diff changeset
460 #else
115
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461 if ((error = ether_ioctl(ifp, &sc->sc_arpcom, cmd, data)) > 0) {
208
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diff changeset
462 #endif
115
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diff changeset
463 splx(s);
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diff changeset
464 return error;
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diff changeset
465 }
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466
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diff changeset
467 switch (cmd) {
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468
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469 case SIOCSIFADDR:
208
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diff changeset
470 #ifndef CYGPKG_NET_FREEBSD_STACK // Now in if_ethersubr.c
115
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471 ifp->if_flags |= IFF_UP;
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472
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473 switch (ifa->ifa_addr->sa_family) {
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474 #ifdef INET
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475 case AF_INET:
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476 eth_drv_start(sc);
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477 arp_ifinit(&sc->sc_arpcom, ifa);
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478 break;
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diff changeset
479 #endif
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480 default:
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481 eth_drv_start(sc);
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482 break;
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483 }
208
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484 #endif // CYGPKG_NET_FREEBSD_STACK
115
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485 break;
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jlarmour
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486
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487 case SIOCGIFHWADDR:
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488 // Get hardware (MAC) address
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489 ifr->ifr_hwaddr.sa_family = AF_INET;
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490 bcopy(&sc->sc_arpcom.ac_enaddr, &ifr->ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
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491 break;
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492
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493 case SIOCSIFHWADDR:
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494 // Set hardware (MAC) address
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495 bcopy(&ifr->ifr_hwaddr.sa_data, &sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN);
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496 if ((sc->funs->control)(sc, ETH_DRV_SET_MAC_ADDRESS,
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497 &sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN)) {
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498 error = EINVAL;
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jlarmour
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499 }
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diff changeset
500 break;
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501
117
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diff changeset
502 #ifdef SIOCGIFSTATS
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diff changeset
503 case SIOCGIFSTATS:
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diff changeset
504 #ifdef SIOCGIFSTATSUD
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diff changeset
505 case SIOCGIFSTATSUD:
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diff changeset
506 #endif
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diff changeset
507 // Get interface statistics:
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diff changeset
508 if ((sc->funs->control)(sc, (cmd == SIOCGIFSTATS)
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diff changeset
509 ? ETH_DRV_GET_IF_STATS
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diff changeset
510 : ETH_DRV_GET_IF_STATS_UD,
bd1a71e3e476 Merge from eCos master repository on 2000-08-25-19:22:58-BST
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parents: 115
diff changeset
511 data, 0 ) ) {
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diff changeset
512 error = EINVAL;
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diff changeset
513 }
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514 break;
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515 #endif // SIOCGIFSTATS
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diff changeset
516
115
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517 case SIOCSIFFLAGS:
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518 if ((ifp->if_flags & IFF_UP) == 0 &&
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519 (ifp->if_flags & IFF_RUNNING) != 0) {
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jlarmour
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diff changeset
520 /*
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jlarmour
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diff changeset
521 * If interface is marked down and it is running, then
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jlarmour
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diff changeset
522 * stop it.
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jlarmour
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diff changeset
523 */
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diff changeset
524 eth_drv_stop(sc);
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diff changeset
525 ifp->if_flags &= ~IFF_RUNNING;
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jlarmour
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diff changeset
526 } else
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diff changeset
527 if ((ifp->if_flags & IFF_UP) != 0 &&
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jlarmour
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diff changeset
528 (ifp->if_flags & IFF_RUNNING) == 0) {
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jlarmour
parents:
diff changeset
529 /*
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jlarmour
parents:
diff changeset
530 * If interface is marked up and it is stopped, then
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jlarmour
parents:
diff changeset
531 * start it.
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jlarmour
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diff changeset
532 */
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diff changeset
533 eth_drv_start(sc);
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jlarmour
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diff changeset
534 } else {
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jlarmour
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diff changeset
535 /*
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jlarmour
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536 * Reset the interface to pick up changes in any other
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jlarmour
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537 * flags that affect hardware registers.
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jlarmour
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diff changeset
538 */
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jlarmour
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diff changeset
539 eth_drv_stop(sc);
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jlarmour
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diff changeset
540 eth_drv_start(sc);
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jlarmour
parents:
diff changeset
541 }
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jlarmour
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diff changeset
542 break;
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jlarmour
parents:
diff changeset
543
208
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diff changeset
544 #ifdef CYGPKG_NET_FREEBSD_STACK
115
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parents:
diff changeset
545 case SIOCADDMULTI:
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jlarmour
parents:
diff changeset
546 case SIOCDELMULTI:
208
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parents: 199
diff changeset
547 {
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diff changeset
548 struct ifmultiaddr *ifma;
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diff changeset
549 struct eth_drv_mc_list mc_list;
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diff changeset
550 int mode = (ifp->if_flags & IFF_ALLMULTI) ? ETH_DRV_SET_MC_ALL :
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diff changeset
551 ETH_DRV_SET_MC_LIST;
115
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jlarmour
parents:
diff changeset
552
208
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parents: 199
diff changeset
553 #ifdef DEBUG
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parents: 199
diff changeset
554 log(LOG_ADDR, "%s Multi\n",(cmd == SIOCADDMULTI) ? "Add" : "Del");
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diff changeset
555 #endif
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jlarmour
parents: 199
diff changeset
556 mc_list.len = 0;
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diff changeset
557 LIST_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) {
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diff changeset
558 if (ifma->ifma_addr->sa_family != AF_LINK) {
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diff changeset
559 continue;
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diff changeset
560 }
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diff changeset
561 #ifdef DEBUG
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diff changeset
562 log_dump(LOG_ADDR, LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 6);
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diff changeset
563 #endif
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diff changeset
564 if ((LLADDR((struct sockaddr_dl *)ifma->ifma_addr)[0] & 0x01) == 0) {
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parents: 199
diff changeset
565 #ifdef DEBUG
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parents: 199
diff changeset
566 log(LOG_ADDR, "** Not a multicast address - ignored\n");
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diff changeset
567 #endif
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parents: 199
diff changeset
568 continue;
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jlarmour
parents: 199
diff changeset
569 }
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parents: 199
diff changeset
570 if (mc_list.len < ETH_DRV_MAX_MC) {
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parents: 199
diff changeset
571 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
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parents: 199
diff changeset
572 mc_list.addrs[mc_list.len], ETHER_ADDR_LEN);
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parents: 199
diff changeset
573 mc_list.len++;
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parents: 199
diff changeset
574 } else {
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jlarmour
parents: 199
diff changeset
575 mode = ETH_DRV_SET_MC_ALL;
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jlarmour
parents: 199
diff changeset
576 }
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parents: 199
diff changeset
577 }
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parents: 199
diff changeset
578 // Note: drivers may behave like IFF_ALLMULTI if the list is
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parents: 199
diff changeset
579 // more than their hardware can handle, e.g. some can only handle 1.
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parents: 199
diff changeset
580 if ((sc->funs->control)(sc, mode, &mc_list, sizeof(mc_list))) {
581
e2b797ca39b4 * src/net/eth_drv.c: If driver can't set multi-cast, indicate it's
jlarmour
parents: 289
diff changeset
581 diag_printf( "[%s] Warning: Driver can't set multi-cast mode\n",
e2b797ca39b4 * src/net/eth_drv.c: If driver can't set multi-cast, indicate it's
jlarmour
parents: 289
diff changeset
582 __FUNCTION__ );
208
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diff changeset
583 error = EINVAL;
115
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parents:
diff changeset
584 }
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parents:
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585 break;
208
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parents: 199
diff changeset
586 }
115
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parents:
diff changeset
587 #endif
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parents:
diff changeset
588
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parents:
diff changeset
589 default:
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diff changeset
590 error = EINVAL;
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parents:
diff changeset
591 break;
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parents:
diff changeset
592 }
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parents:
diff changeset
593
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jlarmour
parents:
diff changeset
594 splx(s);
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parents:
diff changeset
595 return (error);
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parents:
diff changeset
596 }
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parents:
diff changeset
597
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parents:
diff changeset
598 //
179
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599 // Control whether any special locking needs to take place if we intend to
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diff changeset
600 // cooperate with a ROM monitor (e.g. RedBoot) using this hardware.
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diff changeset
601 //
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diff changeset
602 #if defined(CYGSEM_HAL_USE_ROM_MONITOR) && \
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603 defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG) && \
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diff changeset
604 !defined(CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS)
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diff changeset
605
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diff changeset
606 // Indicate that special locking precautions are warranted.
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diff changeset
607 #define _LOCK_WITH_ROM_MONITOR
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diff changeset
608
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diff changeset
609 // This defines the [well known] channel that RedBoot will use when it is
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diff changeset
610 // using the network hardware for the debug channel.
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diff changeset
611 #define RedBoot_TCP_CHANNEL CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS
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diff changeset
612
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diff changeset
613 // Define this if you ever need to call 'diag_printf()' from interrupt level
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diff changeset
614 // code (ISR) and the debug channel might be using the network hardware. If
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parents: 177
diff changeset
615 // this is not the case, then disabling interrupts here is over-kill.
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parents: 177
diff changeset
616 //#define _LOCK_USING_INTERRUPTS
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diff changeset
617 #endif
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diff changeset
618
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diff changeset
619 //
115
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diff changeset
620 // This routine is called to start transmitting if there is data
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jlarmour
parents:
diff changeset
621 // available.
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parents:
diff changeset
622 //
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diff changeset
623 static void
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diff changeset
624 eth_drv_send(struct ifnet *ifp)
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diff changeset
625 {
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626 struct eth_drv_sc *sc = ifp->if_softc;
289
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
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diff changeset
627 #if MAX_ETH_DRV_SG > 64
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
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diff changeset
628 static // Avoid large stack requirements
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
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diff changeset
629 #endif
115
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diff changeset
630 struct eth_drv_sg sg_list[MAX_ETH_DRV_SG];
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diff changeset
631 int sg_len;
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diff changeset
632 struct mbuf *m0, *m;
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diff changeset
633 int len, total_len;
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diff changeset
634 unsigned char *data;
179
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diff changeset
635 #ifdef _LOCK_WITH_ROM_MONITOR
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diff changeset
636 #ifdef _LOCK_USING_INTERRUPTS
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diff changeset
637 cyg_uint32 ints;
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diff changeset
638 #endif
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diff changeset
639 bool need_lock = false;
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diff changeset
640 int debug_chan;
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diff changeset
641 #endif // _LOCK_WITH_ROM_MONITOR
115
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642
121
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diff changeset
643 // This is now only called from network threads, so no guarding is
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diff changeset
644 // required; locking is in place via the splfoo() mechanism already.
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diff changeset
645
115
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diff changeset
646 if ((ifp->if_flags & IFF_RUNNING) != IFF_RUNNING) {
121
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diff changeset
647 return;
115
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diff changeset
648 }
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diff changeset
649
1169
83f799d5b41a Improve stand-alone networking speeds.
gthomas
parents: 1126
diff changeset
650 // If nothing on the queue, no need to bother hardware
83f799d5b41a Improve stand-alone networking speeds.
gthomas
parents: 1126
diff changeset
651 if (IF_IS_EMPTY(&ifp->if_snd)) {
83f799d5b41a Improve stand-alone networking speeds.
gthomas
parents: 1126
diff changeset
652 return;
83f799d5b41a Improve stand-alone networking speeds.
gthomas
parents: 1126
diff changeset
653 }
83f799d5b41a Improve stand-alone networking speeds.
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diff changeset
654
115
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diff changeset
655 while ((sc->funs->can_send)(sc) > 0) {
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diff changeset
656 IF_DEQUEUE(&ifp->if_snd, m0);
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diff changeset
657 if (m0 == 0) {
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diff changeset
658 break;
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659 }
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660
126
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diff changeset
661 #ifdef CYGPKG_IO_ETH_DRIVERS_SIMULATED_FAILURES
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662 if ( simulate_fail( sc, SIMULATE_FAIL_SEND ) ) {
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663 // must free the mbufs
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diff changeset
664 m_freem(m0);
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665 continue; // next packet to send
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diff changeset
666 }
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diff changeset
667 #endif
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668
191
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diff changeset
669 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
199
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diff changeset
670 if (cyg_io_eth_net_debug) {
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diff changeset
671 START_CONSOLE();
115
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672 diag_printf("Sending %d bytes\n", m0->m_pkthdr.len);
199
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diff changeset
673 END_CONSOLE();
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diff changeset
674 }
191
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diff changeset
675 #endif
115
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676
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diff changeset
677 /* We need to use m->m_pkthdr.len, so require the header */
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parents:
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678 if ((m0->m_flags & M_PKTHDR) == 0)
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diff changeset
679 panic("eth_drv_send: no header mbuf");
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diff changeset
680
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diff changeset
681 #if NBPFILTER > 0
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diff changeset
682 /* Tap off here if there is a BPF listener. */
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diff changeset
683 if (ifp->if_bpf)
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diff changeset
684 bpf_mtap(ifp->if_bpf, m0);
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parents:
diff changeset
685 #endif
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diff changeset
686
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687 // Extract data pointers (don't actually move data here)
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688 sg_len = 0; total_len = 0;
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diff changeset
689 for (m = m0; m ; m = m->m_next) {
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diff changeset
690 data = mtod(m, u_char *);
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diff changeset
691 len = m->m_len;
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diff changeset
692 total_len += len;
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diff changeset
693 sg_list[sg_len].buf = (CYG_ADDRESS)data;
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parents:
diff changeset
694 sg_list[sg_len].len = len;
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diff changeset
695 if ( len )
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diff changeset
696 sg_len++;
191
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diff changeset
697 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
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diff changeset
698 if (cyg_io_eth_net_debug) {
199
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diff changeset
699 START_CONSOLE();
115
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diff changeset
700 diag_printf("xmit %d bytes at %x sg[%d]\n", len, data, sg_len);
191
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701 if ( cyg_io_eth_net_debug > 1)
115
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702 diag_dump_buf(data, len);
199
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703 END_CONSOLE();
115
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704 }
191
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parents: 188
diff changeset
705 #endif
115
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parents:
diff changeset
706 if ( MAX_ETH_DRV_SG < sg_len ) {
199
920b9b754b53 Merge from eCos master repository on 2001-12-15-12:00:33-GMT
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parents: 195
diff changeset
707 #ifdef CYGPKG_IO_ETH_DRIVERS_WARN_NO_MBUFS
289
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
parents: 256
diff changeset
708 int needed = 0;
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
parents: 256
diff changeset
709 struct mbuf *m1;
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
parents: 256
diff changeset
710 for (m1 = m0; m1 ; m1 = m1->m_next) needed++;
199
920b9b754b53 Merge from eCos master repository on 2001-12-15-12:00:33-GMT
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parents: 195
diff changeset
711 START_CONSOLE();
289
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
parents: 256
diff changeset
712 diag_printf("too many mbufs to tx, %d > %d, need %d\n",
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
parents: 256
diff changeset
713 sg_len, MAX_ETH_DRV_SG, needed );
199
920b9b754b53 Merge from eCos master repository on 2001-12-15-12:00:33-GMT
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parents: 195
diff changeset
714 END_CONSOLE();
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parents: 195
diff changeset
715 #endif
115
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parents:
diff changeset
716 sg_len = 0;
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jlarmour
parents:
diff changeset
717 break; // drop it on the floor
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jlarmour
parents:
diff changeset
718 }
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jlarmour
parents:
diff changeset
719 }
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jlarmour
parents:
diff changeset
720
179
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
jlarmour
parents: 177
diff changeset
721 #ifdef _LOCK_WITH_ROM_MONITOR
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parents: 177
diff changeset
722 // Firm lock on this portion of the driver. Since we are about to
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
jlarmour
parents: 177
diff changeset
723 // start messing with the actual hardware, it is imperative that the
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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parents: 177
diff changeset
724 // current thread not loose control of the CPU at this time. Otherwise,
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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parents: 177
diff changeset
725 // the hardware could be left in an unusable state. This caution is
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
jlarmour
parents: 177
diff changeset
726 // only warranted if there is a possibility of some other thread trying
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jlarmour
parents: 177
diff changeset
727 // to use the hardware simultaneously. The network stack would prevent
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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diff changeset
728 // this implicitly since all accesses are controlled by the "splX()"
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parents: 177
diff changeset
729 // locks, but if there is a ROM monitor, such as RedBoot, also using
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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parents: 177
diff changeset
730 // the hardware, all bets are off.
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parents: 177
diff changeset
731
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parents: 177
diff changeset
732 // Note: these operations can be avoided if it were well known that
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parents: 177
diff changeset
733 // RedBoot was not using the network hardware for diagnostic I/O. This
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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parents: 177
diff changeset
734 // can be inferred by checking which I/O channel RedBoot is currently
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diff changeset
735 // hooked to.
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parents: 177
diff changeset
736 debug_chan = CYGACC_CALL_IF_SET_DEBUG_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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parents: 177
diff changeset
737 if (debug_chan == RedBoot_TCP_CHANNEL) {
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jlarmour
parents: 177
diff changeset
738 need_lock = true;
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parents: 177
diff changeset
739 #ifdef _LOCK_USING_INTERRUPTS
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parents: 177
diff changeset
740 HAL_DISABLE_INTERRUPTS(ints);
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jlarmour
parents: 177
diff changeset
741 #endif
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parents: 177
diff changeset
742 cyg_drv_dsr_lock();
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jlarmour
parents: 177
diff changeset
743 }
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parents: 177
diff changeset
744 #endif // _LOCK_WITH_ROM_MONITOR
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parents: 177
diff changeset
745
115
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jlarmour
parents:
diff changeset
746 // Tell hardware to send this packet
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jlarmour
parents:
diff changeset
747 if ( sg_len )
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parents:
diff changeset
748 (sc->funs->send)(sc, sg_list, sg_len, total_len, (unsigned long)m0);
179
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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parents: 177
diff changeset
749
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parents: 177
diff changeset
750 #ifdef _LOCK_WITH_ROM_MONITOR
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diff changeset
751 // Unlock the driver & hardware. It can once again be safely shared.
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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parents: 177
diff changeset
752 if (need_lock) {
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jlarmour
parents: 177
diff changeset
753 cyg_drv_dsr_unlock();
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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parents: 177
diff changeset
754 #ifdef _LOCK_USING_INTERRUPTS
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parents: 177
diff changeset
755 HAL_RESTORE_INTERRUPTS(ints);
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parents: 177
diff changeset
756 #endif
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parents: 177
diff changeset
757 }
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parents: 177
diff changeset
758 #endif // _LOCK_WITH_ROM_MONITOR
391299f9e541 Merge from eCos master repository on 2001-08-17-16:31:54-BST
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parents: 177
diff changeset
759 #undef _LOCK_WITH_ROM_MONITOR
180
2bdd82a025e1 Quick fix for eth driver build problem
jlarmour
parents: 179
diff changeset
760 }
115
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jlarmour
parents:
diff changeset
761 }
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jlarmour
parents:
diff changeset
762
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jlarmour
parents:
diff changeset
763 //
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jlarmour
parents:
diff changeset
764 // This function is called from the hardware driver when an output operation
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jlarmour
parents:
diff changeset
765 // has completed - i.e. the packet has been sent.
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jlarmour
parents:
diff changeset
766 //
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jlarmour
parents:
diff changeset
767 static struct mbuf *mbuf_key;
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jlarmour
parents:
diff changeset
768
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parents:
diff changeset
769 static void
121
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parents: 117
diff changeset
770 eth_drv_tx_done(struct eth_drv_sc *sc, CYG_ADDRESS key, int status)
115
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parents:
diff changeset
771 {
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diff changeset
772 struct ifnet *ifp = &sc->sc_arpcom.ac_if;
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jlarmour
parents:
diff changeset
773 struct mbuf *m0 = (struct mbuf *)key;
177
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parents: 169
diff changeset
774 CYGARC_HAL_SAVE_GP();
147
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parents: 145
diff changeset
775
115
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jlarmour
parents:
diff changeset
776 // Check for errors here (via 'status')
147
d397fc472bcf Merge from eCos master repository on 2001-01-05-06:43:02-GMT
jlarmour
parents: 145
diff changeset
777 ifp->if_opackets++;
115
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jlarmour
parents:
diff changeset
778 // Done with packet
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents: 180
diff changeset
779
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents: 180
diff changeset
780 // Guard against a NULL return - can be caused by race conditions in
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents: 180
diff changeset
781 // the driver, this is the neatest fixup:
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents: 180
diff changeset
782 if (m0) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents: 180
diff changeset
783 mbuf_key = m0;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents: 180
diff changeset
784 m_freem(m0);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents: 180
diff changeset
785 }
115
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jlarmour
parents:
diff changeset
786 // Start another if possible
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jlarmour
parents:
diff changeset
787 eth_drv_send(ifp);
177
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
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parents: 169
diff changeset
788 CYGARC_HAL_RESTORE_GP();
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
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parents:
diff changeset
789 }
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jlarmour
parents:
diff changeset
790
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
791 //
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jlarmour
parents:
diff changeset
792 // This function is called from a hardware driver to indicate that an input
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
793 // packet has arrived. The routine will set up appropriate network resources
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
794 // (mbuf's) to hold the data and call back into the driver to retrieve the data.
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
795 //
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jlarmour
parents:
diff changeset
796 static void
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jlarmour
parents:
diff changeset
797 eth_drv_recv(struct eth_drv_sc *sc, int total_len)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
798 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
799 struct ifnet *ifp = &sc->sc_arpcom.ac_if;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
800 struct ether_header _eh, *eh=&_eh;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
801 struct mbuf *top, **mp, *m;
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
802 int mlen;
115
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jlarmour
parents:
diff changeset
803 unsigned char *data;
289
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
parents: 256
diff changeset
804 #if MAX_ETH_DRV_SG > 64
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
parents: 256
diff changeset
805 static // Avoid large stack requirements
bd1db6a90df9 Fix problems with overflowing scatter-gather lists.
gthomas
parents: 256
diff changeset
806 #endif
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
807 struct eth_drv_sg sg_list[MAX_ETH_DRV_SG];
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jlarmour
parents:
diff changeset
808 int sg_len;
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jlarmour
parents:
diff changeset
809
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jlarmour
parents:
diff changeset
810 if ((ifp->if_flags & IFF_RUNNING) != IFF_RUNNING) {
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jlarmour
parents:
diff changeset
811 return; // Interface not up, ignore this request
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jlarmour
parents:
diff changeset
812 }
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parents:
diff changeset
813
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jlarmour
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diff changeset
814 CYG_ASSERT( 0 != total_len, "total_len is zero!" );
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jlarmour
parents:
diff changeset
815 CYG_ASSERT( 0 <= total_len, "total_len is negative!" );
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jlarmour
parents:
diff changeset
816 CYG_ASSERT( sizeof( struct ether_header ) <= total_len,
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jlarmour
parents:
diff changeset
817 "No ether header here!" );
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jlarmour
parents:
diff changeset
818
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jlarmour
parents:
diff changeset
819 if ( total_len < sizeof( struct ether_header ) )
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jlarmour
parents:
diff changeset
820 // Our arithmetic below would go wrong
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jlarmour
parents:
diff changeset
821 return;
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diff changeset
822
177
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diff changeset
823 CYGARC_HAL_SAVE_GP(); // This is down here to make matching restore neat
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parents: 169
diff changeset
824
115
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parents:
diff changeset
825 /* Pull packet off interface. */
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jlarmour
parents:
diff changeset
826 MGETHDR(m, M_DONTWAIT, MT_DATA);
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jlarmour
parents:
diff changeset
827 if (m == 0) {
130
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parents: 128
diff changeset
828 #ifdef CYGPKG_IO_ETH_DRIVERS_WARN_NO_MBUFS
199
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parents: 195
diff changeset
829 START_CONSOLE();
115
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diff changeset
830 diag_printf("warning: eth_recv out of MBUFs\n");
828
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
831 #ifdef CYGDBG_NET_SHOW_MBUFS
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
832 cyg_net_show_mbufs();
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
833 #endif
199
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diff changeset
834 END_CONSOLE();
130
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diff changeset
835 #endif
115
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parents:
diff changeset
836 }
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parents:
diff changeset
837
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jlarmour
parents:
diff changeset
838 // Set up buffers
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
839 // Unload ethernet header separately so IP/UDP/TCP headers are aligned
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
840 sg_list[0].buf = (CYG_ADDRESS)eh;
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jlarmour
parents:
diff changeset
841 sg_list[0].len = sizeof(*eh);
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jlarmour
parents:
diff changeset
842 sg_len = 1;
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jlarmour
parents:
diff changeset
843
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jlarmour
parents:
diff changeset
844 // Compute total length (minus ethernet header)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
845 total_len -= sizeof(*eh);
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jlarmour
parents:
diff changeset
846
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jlarmour
parents:
diff changeset
847 top = 0;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
848 mlen = MHLEN;
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jlarmour
parents:
diff changeset
849 mp = &top;
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jlarmour
parents:
diff changeset
850
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jlarmour
parents:
diff changeset
851 if (m) {
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jlarmour
parents:
diff changeset
852 m->m_pkthdr.rcvif = ifp;
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jlarmour
parents:
diff changeset
853 m->m_pkthdr.len = total_len;
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jlarmour
parents:
diff changeset
854 } else {
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jlarmour
parents:
diff changeset
855 sg_list[sg_len].buf = (CYG_ADDRESS)0;
169
11b54a94cf58 Merge from eCos master repository on 2001-07-06-06:43:02-BST
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parents: 160
diff changeset
856 sg_list[sg_len].len = total_len;
115
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parents:
diff changeset
857 sg_len++;
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jlarmour
parents:
diff changeset
858 total_len = 0;
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jlarmour
parents:
diff changeset
859 }
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jlarmour
parents:
diff changeset
860
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jlarmour
parents:
diff changeset
861 while (total_len > 0) {
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jlarmour
parents:
diff changeset
862 if (top) {
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jlarmour
parents:
diff changeset
863 MGET(m, M_DONTWAIT, MT_DATA);
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jlarmour
parents:
diff changeset
864 if (m == 0) {
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jlarmour
parents:
diff changeset
865 m_freem(top);
130
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parents: 128
diff changeset
866 #ifdef CYGPKG_IO_ETH_DRIVERS_WARN_NO_MBUFS
199
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parents: 195
diff changeset
867 START_CONSOLE();
130
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parents: 128
diff changeset
868 diag_printf("out of MBUFs [2]");
828
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
869 #ifdef CYGDBG_NET_SHOW_MBUFS
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
870 cyg_net_show_mbufs();
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
871 #endif
199
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parents: 195
diff changeset
872 END_CONSOLE();
130
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parents: 128
diff changeset
873 #endif
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parents: 128
diff changeset
874 sg_list[sg_len].buf = (CYG_ADDRESS)0;
169
11b54a94cf58 Merge from eCos master repository on 2001-07-06-06:43:02-BST
jlarmour
parents: 160
diff changeset
875 sg_list[sg_len].len = total_len;
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jlarmour
parents: 160
diff changeset
876 sg_len++;
11b54a94cf58 Merge from eCos master repository on 2001-07-06-06:43:02-BST
jlarmour
parents: 160
diff changeset
877 top = 0;
130
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents: 128
diff changeset
878 break;
115
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jlarmour
parents:
diff changeset
879 }
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jlarmour
parents:
diff changeset
880 mlen = MLEN;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
881 }
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jlarmour
parents:
diff changeset
882 if (total_len >= MINCLSIZE) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
883 MCLGET(m, M_DONTWAIT);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
884 if ((m->m_flags & M_EXT) == 0) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
885 m_freem(top);
160
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST
jlarmour
parents: 149
diff changeset
886 m_free(m);
130
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents: 128
diff changeset
887 #ifdef CYGPKG_IO_ETH_DRIVERS_WARN_NO_MBUFS
199
920b9b754b53 Merge from eCos master repository on 2001-12-15-12:00:33-GMT
jlarmour
parents: 195
diff changeset
888 START_CONSOLE();
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
889 diag_printf("warning: eth_recv out of MBUFs\n");
828
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
890 #ifdef CYGDBG_NET_SHOW_MBUFS
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
891 cyg_net_show_mbufs();
a6926bb063e1 * src/net/eth_drv.c: Added calls to cyg_net_show_mbufs() whenever
nickg
parents: 581
diff changeset
892 #endif
199
920b9b754b53 Merge from eCos master repository on 2001-12-15-12:00:33-GMT
jlarmour
parents: 195
diff changeset
893 END_CONSOLE();
130
eb9fd8c04db3 Merge from eCos master repository on 2000-10-23-17:01:37-BST
jlarmour
parents: 128
diff changeset
894 #endif
115
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jlarmour
parents:
diff changeset
895 sg_list[sg_len].buf = (CYG_ADDRESS)0;
169
11b54a94cf58 Merge from eCos master repository on 2001-07-06-06:43:02-BST
jlarmour
parents: 160
diff changeset
896 sg_list[sg_len].len = total_len;
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
897 sg_len++;
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jlarmour
parents:
diff changeset
898 top = 0;
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jlarmour
parents:
diff changeset
899 break;
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jlarmour
parents:
diff changeset
900 }
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jlarmour
parents:
diff changeset
901 mlen = MCLBYTES;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
902 }
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jlarmour
parents:
diff changeset
903 m->m_len = mlen = min(total_len, mlen);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
904 total_len -= mlen;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
905 data = mtod(m, caddr_t);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
906 sg_list[sg_len].buf = (CYG_ADDRESS)data;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
907 sg_list[sg_len].len = mlen;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
908 sg_len++;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
909 *mp = m;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
910 mp = &m->m_next;
160
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST
jlarmour
parents: 149
diff changeset
911 } // endwhile
115
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jlarmour
parents:
diff changeset
912
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
913 // Ask hardware to unload buffers
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
914 (sc->funs->recv)(sc, sg_list, sg_len);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
915
126
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST
jlarmour
parents: 121
diff changeset
916 #ifdef CYGPKG_IO_ETH_DRIVERS_SIMULATED_FAILURES
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
917 if ( simulate_fail( sc, SIMULATE_FAIL_RECV ) ) {
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jlarmour
parents: 199
diff changeset
918 // toss the packet - note that some hardware gets
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
919 // fussy if the packet isn't "unloaded", thus we
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
920 // have to wait until now to throw it away
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
921 if (top) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
922 m_free(top);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
923 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
924 ifp->if_ierrors++;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
925 return;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
926 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
927
126
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST
jlarmour
parents: 121
diff changeset
928 if ( simulate_fail( sc, SIMULATE_FAIL_CORRUPT ) ) {
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jlarmour
parents: 121
diff changeset
929 // Corrupt the data
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST
jlarmour
parents: 121
diff changeset
930 simulate_fail_corrupt_sglist( sg_list, sg_len );
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST
jlarmour
parents: 121
diff changeset
931 }
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST
jlarmour
parents: 121
diff changeset
932 #endif
518f42066aba Merge from eCos master repository on 2000-09-19-06:25:26-BST
jlarmour
parents: 121
diff changeset
933
191
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST
jlarmour
parents: 188
diff changeset
934 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST
jlarmour
parents: 188
diff changeset
935 if (cyg_io_eth_net_debug) {
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 199
diff changeset
936 int i;
199
920b9b754b53 Merge from eCos master repository on 2001-12-15-12:00:33-GMT
jlarmour
parents: 195
diff changeset
937 START_CONSOLE();
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
938 for (i = 0; i < sg_len; i++) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
939 if (sg_list[i].buf) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
940 diag_printf("rx %d bytes at %x sg[%d]\n", sg_list[i].len, sg_list[i].buf, i);
191
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST
jlarmour
parents: 188
diff changeset
941 if ( cyg_io_eth_net_debug > 1 )
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
942 diag_dump_buf((void *)sg_list[i].buf, sg_list[i].len);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
943 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
944 }
199
920b9b754b53 Merge from eCos master repository on 2001-12-15-12:00:33-GMT
jlarmour
parents: 195
diff changeset
945 END_CONSOLE();
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
946 }
191
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST
jlarmour
parents: 188
diff changeset
947 #endif
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
948 m = top;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
949 if (m == 0) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
950 ifp->if_ierrors++;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
951 }
177
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
952 else {
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
953 ifp->if_ipackets++;
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
954
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
955 #if NBPFILTER > 0
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
956 #error FIXME - Need mbuf with ethernet header attached
177
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
957 /*
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
958 * Check if there's a BPF listener on this interface.
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
959 * If so, hand off the raw packet to bpf.
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
960 */
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
961 if (ifp->if_bpf)
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
962 bpf_mtap(ifp->if_bpf, m);
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
963 #endif
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
964
177
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
965 // Push data into protocol stacks
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
966 ether_input(ifp, eh, m);
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
967 }
4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST
jlarmour
parents: 169
diff changeset
968 CYGARC_HAL_RESTORE_GP();
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
969 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
970
121
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
971
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
972 // ------------------------------------------------------------------------
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
973 // DSR to schedule network delivery thread
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
974
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
975 extern void ecos_synch_eth_drv_dsr(void); // from ecos/timeout.c in net stack
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jlarmour
parents: 117
diff changeset
976
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
977 void
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
978 eth_drv_dsr(cyg_vector_t vector,
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
979 cyg_ucount32 count,
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
980 cyg_addrword_t data)
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
981 {
6bd9d475ed4b Merge from eCos master repository on 2000-09-04-20:50:20-BST
jlarmour
parents: 117
diff changeset
982 struct eth_drv_sc *sc = (struct eth_drv_sc *)data;
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983
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984 #ifdef CYGDBG_USE_ASSERTS
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985 // then check that this really is a "sc"
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986 {
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987 cyg_netdevtab_entry_t *t;
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988 for (t = &__NETDEVTAB__[0]; t != &__NETDEVTAB_END__; t++)
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989 if ( ((struct eth_drv_sc *)t->device_instance) == sc )
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990 break; // found it
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991 CYG_ASSERT( t != &__NETDEVTAB_END__, "eth_drv_dsr: Failed to find sc in NETDEVTAB" );
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992 }
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993 #endif // Checking code
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994
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995 sc->state |= ETH_DRV_NEEDS_DELIVERY;
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996
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997 ecos_synch_eth_drv_dsr(); // [request] run delivery function for this dev
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998 }
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999
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1000 // This is called from the delivery thread, to do just that:
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1001 void eth_drv_run_deliveries( void )
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1002 {
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1003 cyg_netdevtab_entry_t *t;
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1004 for (t = &__NETDEVTAB__[0]; t != &__NETDEVTAB_END__; t++) {
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1005 struct eth_drv_sc *sc = (struct eth_drv_sc *)t->device_instance;
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1006 if ( ETH_DRV_NEEDS_DELIVERY & sc->state ) {
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1007 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT)
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1008 cyg_bool was_ctrlc_int;
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1009 #endif
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1010 sc->state &=~ETH_DRV_NEEDS_DELIVERY;
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1011 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT)
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1012 was_ctrlc_int = HAL_CTRLC_CHECK((*sc->funs->int_vector)(sc), (int)sc);
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1013 if (!was_ctrlc_int) // Fall through and run normal code
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1014 #endif
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1015 (*sc->funs->deliver)(sc);
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1016 }
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1017 }
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1018 }
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1019
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1020 // This is called from the delivery thread, to unstick devices if there is
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1021 // no network activity.
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1022 #ifdef CYGPKG_NET_FAST_THREAD_TICKLE_DEVS
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1023 void eth_drv_tickle_devices( void )
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1024 {
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1025 cyg_netdevtab_entry_t *t;
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1026 for (t = &__NETDEVTAB__[0]; t != &__NETDEVTAB_END__; t++) {
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1027 struct eth_drv_sc *sc = (struct eth_drv_sc *)t->device_instance;
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1028 if ( ETH_DRV_STATE_ACTIVE & sc->state ) {
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1029 struct ifnet *ifp = &sc->sc_arpcom.ac_if;
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1030 // Try to dequeue a packet for this interface, if we can. This
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1031 // will call can_send() for active interfaces. It is calls to
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1032 // this function from tx_done() which normally provide
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1033 // continuous transmissions; otherwise we do not get control.
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1034 // This call fixes that.
1169
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1035 if (!IF_IS_EMPTY(&ifp->if_snd)) {
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1036 eth_drv_send(ifp);
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1037 }
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1038 }
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1039 }
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1040 }
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1041 #endif // CYGPKG_NET_FAST_THREAD_TICKLE_DEVS
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1042
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1043 // ------------------------------------------------------------------------
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1044
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1045 #ifdef CYGPKG_IO_PCMCIA
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1046 // Lookup a 'netdev' entry, assuming that it is an ethernet device.
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1047 cyg_netdevtab_entry_t *
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1048 eth_drv_netdev(char *name)
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1049 {
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1050 cyg_netdevtab_entry_t *t;
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1051 struct eth_drv_sc *sc;
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1052 for (t = &__NETDEVTAB__[0]; t != &__NETDEVTAB_END__; t++) {
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1053 sc = (struct eth_drv_sc *)t->device_instance;
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1054 if (strcmp(sc->dev_name, name) == 0) {
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1055 return t;
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1056 }
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1057 }
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1058 return (cyg_netdevtab_entry_t *)NULL;
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1059 }
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1060 #endif // CYGPKG_IO_PCMCIA
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1061
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1062 // EOF src/net/eth_drv.c