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annotate packages/devs/eth/arm/ebsa285/current/ChangeLog @ 112:02ea4320376c ecos-sw-2000-07-21

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Merge from eCos master repository on 2000-07-21-21:01:39-BST
author jlarmour
date Fri, 21 Jul 2000 21:34:11 +0000
parents 5a0cc6c243a9
children 6ed91473a1cd
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112
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1 2000-07-18 Hugo Tyson <hmt@cygnus.co.uk>
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2
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3 * src/if_ebsa285.c (i82559_poll): Fill in the flesh of this, it
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4 just calls ISR and DSR repeatedly.
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5 (i82559_start): Look in the device record for promiscuous mode
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6 flag; it should be passed though the common layer, but it's not
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7 [yet] - this change from Andrew Lunn/ASCOM. Also a fix and delay
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8 to the promisc mode code per se.
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9
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10 2000-07-17 Hugo Tyson <hmt@cygnus.co.uk>
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12 * src/if_ebsa285.c (i82559_poll): New function, just to fill in
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13 the interface record; not used.
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15 2000-06-27 Hugo Tyson <hmt@cygnus.co.uk>
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17 * cdl/ebsa285_eth_drivers.cdl: Add sesquipedalian option
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18 CYGDBG_DEVS_ETH_ARM_EBSA285_KEEP_82559_STATISTICS in (now)
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19 component CYGDBG_DEVS_ETH_ARM_EBSA285_KEEP_STATISTICS to control
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20 keeping (well, harvesting really) the i82559's internal stats.
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21 Reputedly, it doesn't service the net whilst this is happening, so
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22 it could be viewed a bad thing. Hence the option.
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23
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24 * include/ebsa285_info.h: Only describe the I82559_COUNTERS
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25 i82559_counters[2]; structs if full stats are to be kept.
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26
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27 * src/if_ebsa285.c (update_statistics): Only include this if full
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28 stats are to be kept.
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29
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30 2000-06-27 Hugo Tyson <hmt@cygnus.co.uk>
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31
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32 * src/if_ebsa285.c (ResetRxRing): Re-do the management of the
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33 RxRing; have an end-of-list flag (EL) in the last entry, and as
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34 you unload filled slots, drag it round after you.
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36 2000-06-14 Hugo Tyson <hmt@cygnus.co.uk>
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38 * cdl/ebsa285_eth_drivers.cdl: Add option to control statistics
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39 keeping.
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40
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41 * include/ebsa285_info.h: Act on it.
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42
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43 2000-06-13 Hugo Tyson <hmt@cygnus.co.uk>
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44
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45 * cdl/ebsa285_eth_drivers.cdl: Properly include the new header
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46 file and define symbols to allow client code to get at it without
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47 knowing the particular device driver name.
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48
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49 * include/ebsa285_info.h: New file: export various statistics
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50 information about the driver for use by monitoring and
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51 network-management systems. This requires exposing the
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52 (otherwise) internal structures of the driver.
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53
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54 * src/if_ebsa285.c: remove a lot of structure definitions &c that
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55 are now necessarily in the new header; add a couple of new
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56 routines which provide status and update statistics from the
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57 device into memory; tidy up control of whether stats-keeping is
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58 enabled.
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60 2000-06-06 Hugo Tyson <hmt@cygnus.co.uk>
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62 * cdl/ebsa285_eth_drivers.cdl (define_proc): Add #define of
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63 CYGDAT_DEVS_ETH_DESCRIPTION in the config file for information.
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65 2000-05-12 Hugo Tyson <hmt@cygnus.co.uk>
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66
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67 * tests/test_net_realtime.h (tnr_print_activity): New routine to
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68 check the system is working, tidied up the API. It works!
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69
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70 2000-05-11 Hugo Tyson <hmt@cygnus.co.uk>
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72 * cdl/ebsa285_eth_drivers.cdl: Added export of the test header
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73 below, and config opts for controlling EEPROM writing and all the
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74 status chatter as the device starts up.
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75
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76 * src/if_ebsa285.c: Reworked the code for reading and setting the
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77 EEPROM that holds the MAC address. This is very ugly, but now
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78 more reliable. Also tidied up printing cruft with neater
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79 configury, and made it an option (for safety) whether it's
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80 possible to write the EEPROM at all.
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81
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82 * tests/test_net_realtime.h: New file - it is intended to be used
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83 by networking tests to verify that latency is not compromised by
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84 the stack and driver. It's very platform specific, hence the
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85 location in here. This is a preliminary version only.
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86
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87 2000-04-27 Hugo Tyson <hmt@cygnus.co.uk>
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88
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89 * src/if_ebsa285.c: A serious re-write. This cuts out a lot of
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90 code from the old version and improves the performance greatly.
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91
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92 The cruft was mainly doing lots of explicit event communication
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93 between the ISR and DSR, when in fact all the state needed is
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94 present in the tx/rx rings. So both ISRs and DSRs regard their
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95 call as an opportunity to progress everything they can, rather
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96 than only dealing with one interrupt cause at a time; the
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97 connection between them is now rather looser.
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98
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99 Interrups can now be re-enabled after the ISR (in other words they
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100 are not masked in the ISR), no need to wait for the DSR, but in
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101 consequence some DSR code must mask/unmask intrs as it works.
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102
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103 The 82559 appears to be a little slow in reacting to commands and
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104 state changes, so some interrupts were being lost - or persisting
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105 beyond their desired life - so there's some kinda polling code to
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106 deal with that also. We also rely on the foreground to kind of
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107 poll in the same way, in the send/can_send calls - we know the
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108 stack will re-try if necessary, though this is rare.
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109
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110 The driver now works (albeit at much reduced performance) with as
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111 few as 6 rx and tx buffers - in other words the "queue full/out of
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112 rx buffers" states have been tested and all is well. It works
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113 generally fine with 8 buffers of each kind.
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114
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115 The mux ISR and DSR are now rather more polled than the old
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116 versions; we just try to do things with both devices (if active)
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117 by simply calling each unitary ISR/DSR respectively.
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118
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119 I also re-ordered some of the code, moving utilities to the end of
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120 the file and grouping together Tx and Rx machines a bit better.
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121
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122 2000-04-13 Hugo Tyson <hmt@cygnus.co.uk>
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123
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124 * src/if_ebsa285.c: Attribution to Ron Spence, Pacific Softworks
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125 added as a contributor.
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126
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127 2000-04-07 Hugo Tyson <hmt@cygnus.co.uk>
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128
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129 * ecos.db: Re-organize device packages. This is a massive change
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130 involving deleting all the sources for serial and ethernet drivers
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131 from where they used to live in
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132 packages/io/serial/current/src/ARCH/PLATFORM.[ch]
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133 packages/net/drivers/eth/PLATFORM/current/src/...
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134 and reinstating them in
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135 packages/devs/serial/ARCH/PLATFORM/current/src/...
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136 packages/devs/eth/ARCH/PLATFORM/current/src/...
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137
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138 All these new packages are properly defined in ecos.db, and are
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139 all of type "hardware" so that a "target" can grab them.
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140
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141 This directory layout is descriptive of the devices we have right
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142 now, arch and platform are separate levels just to make it easier
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143 to navigate in the filesystem and similar to the HAL structure in
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144 the filesystem.
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145
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146 It is *not* prescriptive of future work; for example, the mythical
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147 common highly-portable 16550 serial driver which works on many
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148 targets would be called "devs/serial/s16550/current", or a serial
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149 device for a particular board (cogent springs to mind) that can
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150 work with different CPUs fitted is "devs/serial/cogent/current".
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151
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152 Changelogs have been preserved and replicated over all the new
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153 packages, so that no history is lost.
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154
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155 The contents of individual source files are unchanged; they build
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156 in just the same emvironment except for a very few cases where the
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157 config file name changed in this movement.
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158
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159 Targets in ecos.db have been redefined to bring in all relevant
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160 hardware packages including net and serial drivers (but the newly
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161 included packages are only active if their desired parent is
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162 available.)
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163
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164 The names of CDL options (and their #defines of course) stay the
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165 same for the serial drivers, for backward compatibility.
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166
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167 * templates/*/current.ect: these have had CYGPKG_IO_SERIAL added
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168 rather than it being in (almost) all target definitions.
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169
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170 2000-03-29 Hugo Tyson <hmt@cygnus.co.uk>
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171
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172 * src/if_ebsa285.c (i82559_recv): Be happy with NULLs in the
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173 SGlist; it means the caller is out of memory so drop the packet on
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174 the floor. Also remove a completely redundant test.
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175
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176 2000-03-06 Hugo Tyson <hmt@cygnus.co.uk>
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177
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178 * src/if_ebsa285.c (i82559_can_send): Update net driver to new
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179 interface style. This is incomplete wrt promiscuous mode, but
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180 that's probably about all.
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181
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182 2000-02-14 Gary Thomas <gthomas@cygnus.co.uk>
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183
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184 * cdl/ebsa285_eth_drivers.cdl: Update CDL to indicate multiple
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185 interface support.
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186
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187 2000-02-14 Hugo Tyson <hmt@cygnus.co.uk>
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188
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189 * src/if_ebsa285.c (pci_init_find_82559s): Tidy comments somewhat
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190 and set debug and stats collecting defines to most friendly
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191 settings.
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192
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193 2000-02-10 Hugo Tyson <hmt@cygnus.co.uk>
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194
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195 * src/if_ebsa285.c (PacketRxReady): Fix bug; current descriptor
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196 was not being write back for the callback to use. Hence asserts
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197 on state of rfd were firing in busy times - that leading rfd had
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198 already been drained.
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199
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200 Also rationalized meaning of DEBUG printy symbols a bit - it's now
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201 chatty during startup/foreground manipulations but not in any
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202 performance related activities ie. rx or tx.
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203
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204 2000-02-09 John Dallaway <jld@cygnus.co.uk>
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205
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206 * cdl/ebsa285_eth_drivers.cdl:
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207
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208 Reparent under CYGPKG_NET_ETH_DRIVERS and tidy display strings.
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209
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210 2000-02-08 Hugo Tyson <hmt@cygnus.co.uk>
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211
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212 * src/if_ebsa285.c: New File.
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213 * cdl/ebsa285_eth_drivers.cdl: New File.
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214
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215 Initial Checkin of EBSA285 Ethernet driver.
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216
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217 It's one monolithic file at present, and should be split up into a
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218 more generic Intel 82559 driver plus platform-specific parts (PCI
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219 et al) plus eCos/Red-Hat-BSD-stack parts.
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220
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221 //===========================================================================
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222 //####COPYRIGHTBEGIN####
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223 //
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224 // -------------------------------------------
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225 // The contents of this file are subject to the Red Hat eCos Public License
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226 // Version 1.1 (the "License"); you may not use this file except in
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227 // compliance with the License. You may obtain a copy of the License at
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228 // http://www.redhat.com/
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229 //
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230 // Software distributed under the License is distributed on an "AS IS"
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231 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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232 // License for the specific language governing rights and limitations under
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233 // the License.
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234 //
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235 // The Original Code is eCos - Embedded Configurable Operating System,
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236 // released September 30, 1998.
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237 //
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238 // The Initial Developer of the Original Code is Red Hat.
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239 // Portions created by Red Hat are
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240 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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241 // All Rights Reserved.
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242 // -------------------------------------------
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243 //
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244 //####COPYRIGHTEND####
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245 //===========================================================================
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246
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247
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248