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1 /****************************************************************************** |
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2 * |
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3 * $Id$ |
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4 * |
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5 * Copyright (C) 2006 Florian Pose, Ingenieurgemeinschaft IgH |
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6 * |
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7 * This file is part of the IgH EtherCAT Master. |
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8 * |
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9 * The IgH EtherCAT Master is free software; you can redistribute it |
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10 * and/or modify it under the terms of the GNU General Public License |
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11 * as published by the Free Software Foundation; either version 2 of the |
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12 * License, or (at your option) any later version. |
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13 * |
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14 * The IgH EtherCAT Master is distributed in the hope that it will be |
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15 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 * GNU General Public License for more details. |
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18 * |
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19 * You should have received a copy of the GNU General Public License |
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20 * along with the IgH EtherCAT Master; if not, write to the Free Software |
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21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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22 * |
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23 * The right to use EtherCAT Technology is granted and comes free of |
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24 * charge under condition of compatibility of product made by |
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25 * Licensee. People intending to distribute/sell products based on the |
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26 * code, have to sign an agreement to guarantee that products using |
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27 * software based on IgH EtherCAT master stay compatible with the actual |
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28 * EtherCAT specification (which are released themselves as an open |
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29 * standard) as the (only) precondition to have the right to use EtherCAT |
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30 * Technology, IP and trade marks. |
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31 * |
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32 *****************************************************************************/ |
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33 |
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34 /** |
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35 \file |
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36 EtherCAT driver for RTL8139-compatible NICs. |
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37 */ |
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38 |
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39 /*****************************************************************************/ |
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40 |
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41 /* |
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42 Former documentation: |
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43 |
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44 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux. |
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45 |
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46 Maintained by Jeff Garzik <jgarzik@pobox.com> |
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47 Copyright 2000-2002 Jeff Garzik |
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48 |
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49 Much code comes from Donald Becker's rtl8139.c driver, |
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50 versions 1.13 and older. This driver was originally based |
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51 on rtl8139.c version 1.07. Header of rtl8139.c version 1.13: |
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52 |
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53 -----<snip>----- |
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54 |
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55 Written 1997-2001 by Donald Becker. |
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56 This software may be used and distributed according to the |
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57 terms of the GNU General Public License (GPL), incorporated |
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58 herein by reference. Drivers based on or derived from this |
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59 code fall under the GPL and must retain the authorship, |
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60 copyright and license notice. This file is not a complete |
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61 program and may only be used when the entire operating |
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62 system is licensed under the GPL. |
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63 |
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64 This driver is for boards based on the RTL8129 and RTL8139 |
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65 PCI ethernet chips. |
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66 |
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67 The author may be reached as becker@scyld.com, or C/O Scyld |
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68 Computing Corporation 410 Severn Ave., Suite 210 Annapolis |
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69 MD 21403 |
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70 |
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71 Support and updates available at |
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72 http://www.scyld.com/network/rtl8139.html |
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73 |
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74 Twister-tuning table provided by Kinston |
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75 <shangh@realtek.com.tw>. |
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76 |
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77 -----<snip>----- |
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78 |
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79 This software may be used and distributed according to the terms |
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80 of the GNU General Public License, incorporated herein by reference. |
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81 |
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82 Contributors: |
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83 |
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84 Donald Becker - he wrote the original driver, kudos to him! |
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85 (but please don't e-mail him for support, this isn't his driver) |
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86 |
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87 Tigran Aivazian - bug fixes, skbuff free cleanup |
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88 |
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89 Martin Mares - suggestions for PCI cleanup |
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90 |
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91 David S. Miller - PCI DMA and softnet updates |
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92 |
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93 Ernst Gill - fixes ported from BSD driver |
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94 |
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95 Daniel Kobras - identified specific locations of |
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96 posted MMIO write bugginess |
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97 |
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98 Gerard Sharp - bug fix, testing and feedback |
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99 |
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100 David Ford - Rx ring wrap fix |
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101 |
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102 Dan DeMaggio - swapped RTL8139 cards with me, and allowed me |
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103 to find and fix a crucial bug on older chipsets. |
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104 |
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105 Donald Becker/Chris Butterworth/Marcus Westergren - |
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106 Noticed various Rx packet size-related buglets. |
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107 |
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108 Santiago Garcia Mantinan - testing and feedback |
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109 |
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110 Jens David - 2.2.x kernel backports |
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111 |
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112 Martin Dennett - incredibly helpful insight on undocumented |
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113 features of the 8139 chips |
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114 |
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115 Jean-Jacques Michel - bug fix |
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116 |
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117 Tobias Ringström - Rx interrupt status checking suggestion |
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118 |
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119 Andrew Morton - Clear blocked signals, avoid |
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120 buffer overrun setting current->comm. |
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121 |
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122 Kalle Olavi Niemitalo - Wake-on-LAN ioctls |
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123 |
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124 Robert Kuebel - Save kernel thread from dying on any signal. |
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125 |
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126 Submitting bug reports: |
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127 |
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128 "rtl8139-diag -mmmaaavvveefN" output |
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129 enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log |
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130 |
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131 */ |
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132 |
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133 #define DRV_NAME "ec_8139too" |
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134 #define DRV_VERSION "0.9.27" |
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135 |
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136 |
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137 #include <linux/config.h> |
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138 #include <linux/module.h> |
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139 #include <linux/kernel.h> |
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140 #include <linux/compiler.h> |
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141 #include <linux/pci.h> |
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142 #include <linux/init.h> |
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143 #include <linux/ioport.h> |
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144 #include <linux/netdevice.h> |
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145 #include <linux/etherdevice.h> |
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146 #include <linux/rtnetlink.h> |
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147 #include <linux/delay.h> |
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148 #include <linux/ethtool.h> |
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149 #include <linux/mii.h> |
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150 #include <linux/completion.h> |
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151 #include <linux/crc32.h> |
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152 #include <asm/io.h> |
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153 #include <asm/uaccess.h> |
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154 #include <asm/irq.h> |
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155 |
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156 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
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157 |
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158 #include "../globals.h" |
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159 #include "ecdev.h" |
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160 |
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161 #define RTL8139_DRIVER_NAME DRV_NAME \ |
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162 " EtherCAT-capable Fast Ethernet driver " \ |
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163 DRV_VERSION ", master " EC_MASTER_VERSION |
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164 |
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165 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
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166 |
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167 #define PFX DRV_NAME ": " |
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168 |
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169 /* Default Message level */ |
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170 #define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ |
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171 NETIF_MSG_PROBE | \ |
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172 NETIF_MSG_LINK) |
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173 |
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174 |
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175 /* enable PIO instead of MMIO, if CONFIG_8139TOO_PIO is selected */ |
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176 #ifdef CONFIG_8139TOO_PIO |
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177 #define USE_IO_OPS 1 |
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178 #endif |
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179 |
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180 /* define to 1, 2 or 3 to enable copious debugging info */ |
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181 #define RTL8139_DEBUG 0 |
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182 |
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183 /* define to 1 to disable lightweight runtime debugging checks */ |
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184 #undef RTL8139_NDEBUG |
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185 |
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186 |
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187 #if RTL8139_DEBUG |
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188 /* note: prints function name for you */ |
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189 # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args) |
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190 #else |
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191 # define DPRINTK(fmt, args...) |
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192 #endif |
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193 |
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194 #ifdef RTL8139_NDEBUG |
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195 # define assert(expr) do {} while (0) |
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196 #else |
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197 # define assert(expr) \ |
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198 if(unlikely(!(expr))) { \ |
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199 printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \ |
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200 #expr,__FILE__,__FUNCTION__,__LINE__); \ |
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201 } |
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202 #endif |
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203 |
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204 |
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205 /* A few user-configurable values. */ |
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206 /* media options */ |
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207 #define MAX_UNITS 8 |
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208 static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
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209 static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
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210 |
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211 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
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212 The RTL chips use a 64 element hash table based on the Ethernet CRC. */ |
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213 static int multicast_filter_limit = 32; |
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214 |
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215 /* bitmapped message enable number */ |
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216 static int debug = -1; |
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217 |
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218 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
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219 |
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220 static int ec_device_index = -1; |
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221 static int ec_device_master_index = 0; |
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222 static ec_device_t *rtl_ec_dev; |
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223 struct net_device *rtl_ec_net_dev = NULL; |
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224 |
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225 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
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226 |
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227 /* |
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228 * Receive ring size |
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229 * Warning: 64K ring has hardware issues and may lock up. |
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230 */ |
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231 #if defined(CONFIG_SH_DREAMCAST) |
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232 #define RX_BUF_IDX 1 /* 16K ring */ |
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233 #else |
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234 #define RX_BUF_IDX 2 /* 32K ring */ |
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235 #endif |
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236 #define RX_BUF_LEN (8192 << RX_BUF_IDX) |
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237 #define RX_BUF_PAD 16 |
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238 #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ |
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239 |
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240 #if RX_BUF_LEN == 65536 |
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241 #define RX_BUF_TOT_LEN RX_BUF_LEN |
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242 #else |
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243 #define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) |
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244 #endif |
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245 |
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246 /* Number of Tx descriptor registers. */ |
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247 #define NUM_TX_DESC 4 |
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248 |
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249 /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ |
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250 #define MAX_ETH_FRAME_SIZE 1536 |
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251 |
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252 /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ |
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253 #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE |
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254 #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) |
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255 |
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256 /* PCI Tuning Parameters |
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257 Threshold is bytes transferred to chip before transmission starts. */ |
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258 #define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ |
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259 |
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260 /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ |
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261 #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ |
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262 #define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ |
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263 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ |
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264 #define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ |
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265 |
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266 /* Operational parameters that usually are not changed. */ |
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267 /* Time in jiffies before concluding the transmitter is hung. */ |
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268 #define TX_TIMEOUT (6*HZ) |
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269 |
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270 |
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271 enum { |
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272 HAS_MII_XCVR = 0x010000, |
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273 HAS_CHIP_XCVR = 0x020000, |
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274 HAS_LNK_CHNG = 0x040000, |
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275 }; |
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276 |
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277 #define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ |
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278 #define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ |
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279 #define RTL_MIN_IO_SIZE 0x80 |
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280 #define RTL8139B_IO_SIZE 256 |
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281 |
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282 #define RTL8129_CAPS HAS_MII_XCVR |
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283 #define RTL8139_CAPS HAS_CHIP_XCVR|HAS_LNK_CHNG |
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284 |
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285 typedef enum { |
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286 RTL8139 = 0, |
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287 RTL8129, |
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288 } board_t; |
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289 |
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290 |
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291 /* indexed by board_t, above */ |
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292 static struct { |
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293 const char *name; |
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294 u32 hw_flags; |
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295 } board_info[] __devinitdata = { |
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296 { "RealTek RTL8139", RTL8139_CAPS }, |
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297 { "RealTek RTL8129", RTL8129_CAPS }, |
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298 }; |
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299 |
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300 |
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301 static struct pci_device_id rtl8139_pci_tbl[] = { |
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302 {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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303 {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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304 {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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305 {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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306 {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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307 {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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308 {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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309 {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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310 {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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311 {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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312 {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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313 {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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314 {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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315 {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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316 {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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317 {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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318 {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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319 {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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320 {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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321 |
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322 #ifdef CONFIG_SH_SECUREEDGE5410 |
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323 /* Bogus 8139 silicon reports 8129 without external PROM :-( */ |
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324 {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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325 #endif |
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326 #ifdef CONFIG_8139TOO_8129 |
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327 {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, |
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328 #endif |
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329 |
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330 /* some crazy cards report invalid vendor ids like |
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331 * 0x0001 here. The other ids are valid and constant, |
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332 * so we simply don't match on the main vendor id. |
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333 */ |
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334 {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, |
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335 {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, |
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336 {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, |
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337 |
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338 {0,} |
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339 }; |
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340 |
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341 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
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342 |
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343 /* prevent driver from being loaded automatically */ |
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344 //MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); |
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345 |
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346 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
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347 |
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348 static struct { |
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349 const char str[ETH_GSTRING_LEN]; |
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350 } ethtool_stats_keys[] = { |
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351 { "early_rx" }, |
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352 { "tx_buf_mapped" }, |
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353 { "tx_timeouts" }, |
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354 { "rx_lost_in_ring" }, |
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355 }; |
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356 |
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357 /* The rest of these values should never change. */ |
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358 |
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359 /* Symbolic offsets to registers. */ |
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360 enum RTL8139_registers { |
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361 MAC0 = 0, /* Ethernet hardware address. */ |
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362 MAR0 = 8, /* Multicast filter. */ |
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363 TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ |
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364 TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ |
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365 RxBuf = 0x30, |
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366 ChipCmd = 0x37, |
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367 RxBufPtr = 0x38, |
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368 RxBufAddr = 0x3A, |
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369 IntrMask = 0x3C, |
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370 IntrStatus = 0x3E, |
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371 TxConfig = 0x40, |
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372 RxConfig = 0x44, |
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373 Timer = 0x48, /* A general-purpose counter. */ |
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374 RxMissed = 0x4C, /* 24 bits valid, write clears. */ |
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375 Cfg9346 = 0x50, |
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376 Config0 = 0x51, |
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377 Config1 = 0x52, |
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378 FlashReg = 0x54, |
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379 MediaStatus = 0x58, |
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380 Config3 = 0x59, |
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381 Config4 = 0x5A, /* absent on RTL-8139A */ |
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382 HltClk = 0x5B, |
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383 MultiIntr = 0x5C, |
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384 TxSummary = 0x60, |
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385 BasicModeCtrl = 0x62, |
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386 BasicModeStatus = 0x64, |
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387 NWayAdvert = 0x66, |
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388 NWayLPAR = 0x68, |
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389 NWayExpansion = 0x6A, |
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390 /* Undocumented registers, but required for proper operation. */ |
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391 FIFOTMS = 0x70, /* FIFO Control and test. */ |
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392 CSCR = 0x74, /* Chip Status and Configuration Register. */ |
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393 PARA78 = 0x78, |
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394 PARA7c = 0x7c, /* Magic transceiver parameter register. */ |
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395 Config5 = 0xD8, /* absent on RTL-8139A */ |
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396 }; |
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397 |
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398 enum ClearBitMasks { |
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399 MultiIntrClear = 0xF000, |
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400 ChipCmdClear = 0xE2, |
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401 Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), |
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402 }; |
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403 |
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404 enum ChipCmdBits { |
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405 CmdReset = 0x10, |
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406 CmdRxEnb = 0x08, |
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407 CmdTxEnb = 0x04, |
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408 RxBufEmpty = 0x01, |
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409 }; |
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410 |
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411 /* Interrupt register bits, using my own meaningful names. */ |
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412 enum IntrStatusBits { |
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413 PCIErr = 0x8000, |
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414 PCSTimeout = 0x4000, |
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415 RxFIFOOver = 0x40, |
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416 RxUnderrun = 0x20, |
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417 RxOverflow = 0x10, |
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418 TxErr = 0x08, |
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419 TxOK = 0x04, |
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420 RxErr = 0x02, |
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421 RxOK = 0x01, |
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422 |
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423 RxAckBits = RxFIFOOver | RxOverflow | RxOK, |
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424 }; |
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425 |
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426 enum TxStatusBits { |
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427 TxHostOwns = 0x2000, |
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428 TxUnderrun = 0x4000, |
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429 TxStatOK = 0x8000, |
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430 TxOutOfWindow = 0x20000000, |
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431 TxAborted = 0x40000000, |
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432 TxCarrierLost = 0x80000000, |
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433 }; |
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434 enum RxStatusBits { |
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435 RxMulticast = 0x8000, |
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436 RxPhysical = 0x4000, |
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437 RxBroadcast = 0x2000, |
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438 RxBadSymbol = 0x0020, |
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439 RxRunt = 0x0010, |
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440 RxTooLong = 0x0008, |
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441 RxCRCErr = 0x0004, |
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442 RxBadAlign = 0x0002, |
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443 RxStatusOK = 0x0001, |
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444 }; |
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445 |
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446 /* Bits in RxConfig. */ |
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447 enum rx_mode_bits { |
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448 AcceptErr = 0x20, |
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449 AcceptRunt = 0x10, |
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450 AcceptBroadcast = 0x08, |
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451 AcceptMulticast = 0x04, |
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452 AcceptMyPhys = 0x02, |
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453 AcceptAllPhys = 0x01, |
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454 }; |
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455 |
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456 /* Bits in TxConfig. */ |
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457 enum tx_config_bits { |
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458 |
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459 /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ |
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460 TxIFGShift = 24, |
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461 TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */ |
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462 TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */ |
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463 TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */ |
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464 TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */ |
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465 |
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466 TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ |
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467 TxCRC = (1 << 16), /* DISABLE appending CRC to end of Tx packets */ |
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468 TxClearAbt = (1 << 0), /* Clear abort (WO) */ |
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469 TxDMAShift = 8, /* DMA burst value (0-7) is shifted this many bits */ |
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470 TxRetryShift = 4, /* TXRR value (0-15) is shifted this many bits */ |
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471 |
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472 TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ |
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473 }; |
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474 |
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475 /* Bits in Config1 */ |
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476 enum Config1Bits { |
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477 Cfg1_PM_Enable = 0x01, |
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478 Cfg1_VPD_Enable = 0x02, |
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479 Cfg1_PIO = 0x04, |
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480 Cfg1_MMIO = 0x08, |
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481 LWAKE = 0x10, /* not on 8139, 8139A */ |
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482 Cfg1_Driver_Load = 0x20, |
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483 Cfg1_LED0 = 0x40, |
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484 Cfg1_LED1 = 0x80, |
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485 SLEEP = (1 << 1), /* only on 8139, 8139A */ |
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486 PWRDN = (1 << 0), /* only on 8139, 8139A */ |
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487 }; |
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488 |
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489 /* Bits in Config3 */ |
|
490 enum Config3Bits { |
|
491 Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */ |
|
492 Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */ |
|
493 Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */ |
|
494 Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */ |
|
495 Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */ |
|
496 Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */ |
|
497 Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */ |
|
498 Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */ |
|
499 }; |
|
500 |
|
501 /* Bits in Config4 */ |
|
502 enum Config4Bits { |
|
503 LWPTN = (1 << 2), /* not on 8139, 8139A */ |
|
504 }; |
|
505 |
|
506 /* Bits in Config5 */ |
|
507 enum Config5Bits { |
|
508 Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */ |
|
509 Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */ |
|
510 Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */ |
|
511 Cfg5_FIFOAddrPtr = (1 << 3), /* Realtek internal SRAM testing */ |
|
512 Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */ |
|
513 Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */ |
|
514 Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */ |
|
515 }; |
|
516 |
|
517 enum RxConfigBits { |
|
518 /* rx fifo threshold */ |
|
519 RxCfgFIFOShift = 13, |
|
520 RxCfgFIFONone = (7 << RxCfgFIFOShift), |
|
521 |
|
522 /* Max DMA burst */ |
|
523 RxCfgDMAShift = 8, |
|
524 RxCfgDMAUnlimited = (7 << RxCfgDMAShift), |
|
525 |
|
526 /* rx ring buffer length */ |
|
527 RxCfgRcv8K = 0, |
|
528 RxCfgRcv16K = (1 << 11), |
|
529 RxCfgRcv32K = (1 << 12), |
|
530 RxCfgRcv64K = (1 << 11) | (1 << 12), |
|
531 |
|
532 /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ |
|
533 RxNoWrap = (1 << 7), |
|
534 }; |
|
535 |
|
536 /* Twister tuning parameters from RealTek. |
|
537 Completely undocumented, but required to tune bad links on some boards. */ |
|
538 enum CSCRBits { |
|
539 CSCR_LinkOKBit = 0x0400, |
|
540 CSCR_LinkChangeBit = 0x0800, |
|
541 CSCR_LinkStatusBits = 0x0f000, |
|
542 CSCR_LinkDownOffCmd = 0x003c0, |
|
543 CSCR_LinkDownCmd = 0x0f3c0, |
|
544 }; |
|
545 |
|
546 enum Cfg9346Bits { |
|
547 Cfg9346_Lock = 0x00, |
|
548 Cfg9346_Unlock = 0xC0, |
|
549 }; |
|
550 |
|
551 typedef enum { |
|
552 CH_8139 = 0, |
|
553 CH_8139_K, |
|
554 CH_8139A, |
|
555 CH_8139A_G, |
|
556 CH_8139B, |
|
557 CH_8130, |
|
558 CH_8139C, |
|
559 CH_8100, |
|
560 CH_8100B_8139D, |
|
561 CH_8101, |
|
562 } chip_t; |
|
563 |
|
564 enum chip_flags { |
|
565 HasHltClk = (1 << 0), |
|
566 HasLWake = (1 << 1), |
|
567 }; |
|
568 |
|
569 #define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \ |
|
570 (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22) |
|
571 #define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1) |
|
572 |
|
573 /* directly indexed by chip_t, above */ |
|
574 const static struct { |
|
575 const char *name; |
|
576 u32 version; /* from RTL8139C/RTL8139D docs */ |
|
577 u32 flags; |
|
578 } rtl_chip_info[] = { |
|
579 { "RTL-8139", |
|
580 HW_REVID(1, 0, 0, 0, 0, 0, 0), |
|
581 HasHltClk, |
|
582 }, |
|
583 |
|
584 { "RTL-8139 rev K", |
|
585 HW_REVID(1, 1, 0, 0, 0, 0, 0), |
|
586 HasHltClk, |
|
587 }, |
|
588 |
|
589 { "RTL-8139A", |
|
590 HW_REVID(1, 1, 1, 0, 0, 0, 0), |
|
591 HasHltClk, /* XXX undocumented? */ |
|
592 }, |
|
593 |
|
594 { "RTL-8139A rev G", |
|
595 HW_REVID(1, 1, 1, 0, 0, 1, 0), |
|
596 HasHltClk, /* XXX undocumented? */ |
|
597 }, |
|
598 |
|
599 { "RTL-8139B", |
|
600 HW_REVID(1, 1, 1, 1, 0, 0, 0), |
|
601 HasLWake, |
|
602 }, |
|
603 |
|
604 { "RTL-8130", |
|
605 HW_REVID(1, 1, 1, 1, 1, 0, 0), |
|
606 HasLWake, |
|
607 }, |
|
608 |
|
609 { "RTL-8139C", |
|
610 HW_REVID(1, 1, 1, 0, 1, 0, 0), |
|
611 HasLWake, |
|
612 }, |
|
613 |
|
614 { "RTL-8100", |
|
615 HW_REVID(1, 1, 1, 1, 0, 1, 0), |
|
616 HasLWake, |
|
617 }, |
|
618 |
|
619 { "RTL-8100B/8139D", |
|
620 HW_REVID(1, 1, 1, 0, 1, 0, 1), |
|
621 HasLWake, |
|
622 }, |
|
623 |
|
624 { "RTL-8101", |
|
625 HW_REVID(1, 1, 1, 0, 1, 1, 1), |
|
626 HasLWake, |
|
627 }, |
|
628 }; |
|
629 |
|
630 struct rtl_extra_stats { |
|
631 unsigned long early_rx; |
|
632 unsigned long tx_buf_mapped; |
|
633 unsigned long tx_timeouts; |
|
634 unsigned long rx_lost_in_ring; |
|
635 }; |
|
636 |
|
637 struct rtl8139_private { |
|
638 void __iomem *mmio_addr; |
|
639 int drv_flags; |
|
640 struct pci_dev *pci_dev; |
|
641 u32 msg_enable; |
|
642 struct net_device_stats stats; |
|
643 unsigned char *rx_ring; |
|
644 unsigned int cur_rx; /* Index into the Rx buffer of next Rx pkt. */ |
|
645 unsigned int tx_flag; |
|
646 unsigned long cur_tx; |
|
647 unsigned long dirty_tx; |
|
648 unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ |
|
649 unsigned char *tx_bufs; /* Tx bounce buffer region. */ |
|
650 dma_addr_t rx_ring_dma; |
|
651 dma_addr_t tx_bufs_dma; |
|
652 signed char phys[4]; /* MII device addresses. */ |
|
653 char twistie, twist_row, twist_col; /* Twister tune state. */ |
|
654 unsigned int default_port:4; /* Last dev->if_port value. */ |
|
655 spinlock_t lock; |
|
656 spinlock_t rx_lock; |
|
657 chip_t chipset; |
|
658 pid_t thr_pid; |
|
659 wait_queue_head_t thr_wait; |
|
660 struct completion thr_exited; |
|
661 u32 rx_config; |
|
662 struct rtl_extra_stats xstats; |
|
663 int time_to_die; |
|
664 struct mii_if_info mii; |
|
665 unsigned int regs_len; |
|
666 unsigned long fifo_copy_timeout; |
|
667 }; |
|
668 |
|
669 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
670 |
|
671 MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>"); |
|
672 MODULE_DESCRIPTION("RealTek RTL-8139 EtherCAT driver"); |
|
673 MODULE_LICENSE("GPL"); |
|
674 MODULE_VERSION(EC_MASTER_VERSION); |
|
675 |
|
676 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
677 |
|
678 module_param(multicast_filter_limit, int, 0); |
|
679 module_param_array(media, int, NULL, 0); |
|
680 module_param_array(full_duplex, int, NULL, 0); |
|
681 module_param(debug, int, 0); |
|
682 MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); |
|
683 MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); |
|
684 MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); |
|
685 MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); |
|
686 |
|
687 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
688 |
|
689 module_param(ec_device_index, int, -1); |
|
690 module_param(ec_device_master_index, int, 0); |
|
691 MODULE_PARM_DESC(ec_device_index, |
|
692 "Index of the device reserved for EtherCAT."); |
|
693 MODULE_PARM_DESC(ec_device_master_index, |
|
694 "Index of the EtherCAT master to register the device."); |
|
695 |
|
696 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
697 |
|
698 static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); |
|
699 static int rtl8139_open (struct net_device *dev); |
|
700 static int mdio_read (struct net_device *dev, int phy_id, int location); |
|
701 static void mdio_write (struct net_device *dev, int phy_id, int location, |
|
702 int val); |
|
703 static void rtl8139_start_thread(struct net_device *dev); |
|
704 static void rtl8139_tx_timeout (struct net_device *dev); |
|
705 static void rtl8139_init_ring (struct net_device *dev); |
|
706 static int rtl8139_start_xmit (struct sk_buff *skb, |
|
707 struct net_device *dev); |
|
708 static int rtl8139_poll(struct net_device *dev, int *budget); |
|
709 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
710 static void rtl8139_poll_controller(struct net_device *dev); |
|
711 #endif |
|
712 irqreturn_t rtl8139_interrupt (int irq, void *dev_instance, |
|
713 struct pt_regs *regs); |
|
714 static int rtl8139_close (struct net_device *dev); |
|
715 static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); |
|
716 static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); |
|
717 static void rtl8139_set_rx_mode (struct net_device *dev); |
|
718 static void __set_rx_mode (struct net_device *dev); |
|
719 static void rtl8139_hw_start (struct net_device *dev); |
|
720 static struct ethtool_ops rtl8139_ethtool_ops; |
|
721 |
|
722 /* write MMIO register, with flush */ |
|
723 /* Flush avoids rtl8139 bug w/ posted MMIO writes */ |
|
724 #define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) |
|
725 #define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) |
|
726 #define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0) |
|
727 |
|
728 |
|
729 #define MMIO_FLUSH_AUDIT_COMPLETE 1 |
|
730 #if MMIO_FLUSH_AUDIT_COMPLETE |
|
731 |
|
732 /* write MMIO register */ |
|
733 #define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) |
|
734 #define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) |
|
735 #define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) |
|
736 |
|
737 #else |
|
738 |
|
739 /* write MMIO register, then flush */ |
|
740 #define RTL_W8 RTL_W8_F |
|
741 #define RTL_W16 RTL_W16_F |
|
742 #define RTL_W32 RTL_W32_F |
|
743 |
|
744 #endif /* MMIO_FLUSH_AUDIT_COMPLETE */ |
|
745 |
|
746 /* read MMIO register */ |
|
747 #define RTL_R8(reg) ioread8 (ioaddr + (reg)) |
|
748 #define RTL_R16(reg) ioread16 (ioaddr + (reg)) |
|
749 #define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg))) |
|
750 |
|
751 |
|
752 static const u16 rtl8139_intr_mask = |
|
753 PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | |
|
754 TxErr | TxOK | RxErr | RxOK; |
|
755 |
|
756 static const u16 rtl8139_norx_intr_mask = |
|
757 PCIErr | PCSTimeout | RxUnderrun | |
|
758 TxErr | TxOK | RxErr ; |
|
759 |
|
760 #if RX_BUF_IDX == 0 |
|
761 static const unsigned int rtl8139_rx_config = |
|
762 RxCfgRcv8K | RxNoWrap | |
|
763 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
764 (RX_DMA_BURST << RxCfgDMAShift); |
|
765 #elif RX_BUF_IDX == 1 |
|
766 static const unsigned int rtl8139_rx_config = |
|
767 RxCfgRcv16K | RxNoWrap | |
|
768 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
769 (RX_DMA_BURST << RxCfgDMAShift); |
|
770 #elif RX_BUF_IDX == 2 |
|
771 static const unsigned int rtl8139_rx_config = |
|
772 RxCfgRcv32K | RxNoWrap | |
|
773 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
774 (RX_DMA_BURST << RxCfgDMAShift); |
|
775 #elif RX_BUF_IDX == 3 |
|
776 static const unsigned int rtl8139_rx_config = |
|
777 RxCfgRcv64K | |
|
778 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
779 (RX_DMA_BURST << RxCfgDMAShift); |
|
780 #else |
|
781 #error "Invalid configuration for 8139_RXBUF_IDX" |
|
782 #endif |
|
783 |
|
784 static const unsigned int rtl8139_tx_config = |
|
785 TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); |
|
786 |
|
787 static void __rtl8139_cleanup_dev (struct net_device *dev) |
|
788 { |
|
789 struct rtl8139_private *tp = netdev_priv(dev); |
|
790 struct pci_dev *pdev; |
|
791 |
|
792 assert (dev != NULL); |
|
793 assert (tp->pci_dev != NULL); |
|
794 pdev = tp->pci_dev; |
|
795 |
|
796 #ifdef USE_IO_OPS |
|
797 if (tp->mmio_addr) |
|
798 ioport_unmap (tp->mmio_addr); |
|
799 #else |
|
800 if (tp->mmio_addr) |
|
801 pci_iounmap (pdev, tp->mmio_addr); |
|
802 #endif /* USE_IO_OPS */ |
|
803 |
|
804 /* it's ok to call this even if we have no regions to free */ |
|
805 pci_release_regions (pdev); |
|
806 |
|
807 free_netdev(dev); |
|
808 pci_set_drvdata (pdev, NULL); |
|
809 } |
|
810 |
|
811 |
|
812 static void rtl8139_chip_reset (void __iomem *ioaddr) |
|
813 { |
|
814 int i; |
|
815 |
|
816 /* Soft reset the chip. */ |
|
817 RTL_W8 (ChipCmd, CmdReset); |
|
818 |
|
819 /* Check that the chip has finished the reset. */ |
|
820 for (i = 1000; i > 0; i--) { |
|
821 barrier(); |
|
822 if ((RTL_R8 (ChipCmd) & CmdReset) == 0) |
|
823 break; |
|
824 udelay (10); |
|
825 } |
|
826 } |
|
827 |
|
828 |
|
829 static int __devinit rtl8139_init_board (struct pci_dev *pdev, |
|
830 struct net_device **dev_out) |
|
831 { |
|
832 void __iomem *ioaddr; |
|
833 struct net_device *dev; |
|
834 struct rtl8139_private *tp; |
|
835 u8 tmp8; |
|
836 int rc, disable_dev_on_err = 0; |
|
837 unsigned int i; |
|
838 unsigned long pio_start, pio_end, pio_flags, pio_len; |
|
839 unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; |
|
840 u32 version; |
|
841 |
|
842 assert (pdev != NULL); |
|
843 |
|
844 *dev_out = NULL; |
|
845 |
|
846 /* dev and priv zeroed in alloc_etherdev */ |
|
847 dev = alloc_etherdev (sizeof (*tp)); |
|
848 if (dev == NULL) { |
|
849 printk (KERN_ERR PFX "%s: Unable to alloc new net device\n", pci_name(pdev)); |
|
850 return -ENOMEM; |
|
851 } |
|
852 SET_MODULE_OWNER(dev); |
|
853 SET_NETDEV_DEV(dev, &pdev->dev); |
|
854 |
|
855 tp = netdev_priv(dev); |
|
856 tp->pci_dev = pdev; |
|
857 |
|
858 /* enable device (incl. PCI PM wakeup and hotplug setup) */ |
|
859 rc = pci_enable_device (pdev); |
|
860 if (rc) |
|
861 goto err_out; |
|
862 |
|
863 pio_start = pci_resource_start (pdev, 0); |
|
864 pio_end = pci_resource_end (pdev, 0); |
|
865 pio_flags = pci_resource_flags (pdev, 0); |
|
866 pio_len = pci_resource_len (pdev, 0); |
|
867 |
|
868 mmio_start = pci_resource_start (pdev, 1); |
|
869 mmio_end = pci_resource_end (pdev, 1); |
|
870 mmio_flags = pci_resource_flags (pdev, 1); |
|
871 mmio_len = pci_resource_len (pdev, 1); |
|
872 |
|
873 /* set this immediately, we need to know before |
|
874 * we talk to the chip directly */ |
|
875 DPRINTK("PIO region size == 0x%02X\n", pio_len); |
|
876 DPRINTK("MMIO region size == 0x%02lX\n", mmio_len); |
|
877 |
|
878 #ifdef USE_IO_OPS |
|
879 /* make sure PCI base addr 0 is PIO */ |
|
880 if (!(pio_flags & IORESOURCE_IO)) { |
|
881 printk (KERN_ERR PFX "%s: region #0 not a PIO resource, aborting\n", pci_name(pdev)); |
|
882 rc = -ENODEV; |
|
883 goto err_out; |
|
884 } |
|
885 /* check for weird/broken PCI region reporting */ |
|
886 if (pio_len < RTL_MIN_IO_SIZE) { |
|
887 printk (KERN_ERR PFX "%s: Invalid PCI I/O region size(s), aborting\n", pci_name(pdev)); |
|
888 rc = -ENODEV; |
|
889 goto err_out; |
|
890 } |
|
891 #else |
|
892 /* make sure PCI base addr 1 is MMIO */ |
|
893 if (!(mmio_flags & IORESOURCE_MEM)) { |
|
894 printk (KERN_ERR PFX "%s: region #1 not an MMIO resource, aborting\n", pci_name(pdev)); |
|
895 rc = -ENODEV; |
|
896 goto err_out; |
|
897 } |
|
898 if (mmio_len < RTL_MIN_IO_SIZE) { |
|
899 printk (KERN_ERR PFX "%s: Invalid PCI mem region size(s), aborting\n", pci_name(pdev)); |
|
900 rc = -ENODEV; |
|
901 goto err_out; |
|
902 } |
|
903 #endif |
|
904 |
|
905 rc = pci_request_regions (pdev, "8139too"); |
|
906 if (rc) |
|
907 goto err_out; |
|
908 disable_dev_on_err = 1; |
|
909 |
|
910 /* enable PCI bus-mastering */ |
|
911 pci_set_master (pdev); |
|
912 |
|
913 #ifdef USE_IO_OPS |
|
914 ioaddr = ioport_map(pio_start, pio_len); |
|
915 if (!ioaddr) { |
|
916 printk (KERN_ERR PFX "%s: cannot map PIO, aborting\n", pci_name(pdev)); |
|
917 rc = -EIO; |
|
918 goto err_out; |
|
919 } |
|
920 dev->base_addr = pio_start; |
|
921 tp->mmio_addr = ioaddr; |
|
922 tp->regs_len = pio_len; |
|
923 #else |
|
924 /* ioremap MMIO region */ |
|
925 ioaddr = pci_iomap(pdev, 1, 0); |
|
926 if (ioaddr == NULL) { |
|
927 printk (KERN_ERR PFX "%s: cannot remap MMIO, aborting\n", pci_name(pdev)); |
|
928 rc = -EIO; |
|
929 goto err_out; |
|
930 } |
|
931 dev->base_addr = (long) ioaddr; |
|
932 tp->mmio_addr = ioaddr; |
|
933 tp->regs_len = mmio_len; |
|
934 #endif /* USE_IO_OPS */ |
|
935 |
|
936 /* Bring old chips out of low-power mode. */ |
|
937 RTL_W8 (HltClk, 'R'); |
|
938 |
|
939 /* check for missing/broken hardware */ |
|
940 if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { |
|
941 printk (KERN_ERR PFX "%s: Chip not responding, ignoring board\n", |
|
942 pci_name(pdev)); |
|
943 rc = -EIO; |
|
944 goto err_out; |
|
945 } |
|
946 |
|
947 /* identify chip attached to board */ |
|
948 version = RTL_R32 (TxConfig) & HW_REVID_MASK; |
|
949 for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) |
|
950 if (version == rtl_chip_info[i].version) { |
|
951 tp->chipset = i; |
|
952 goto match; |
|
953 } |
|
954 |
|
955 /* if unknown chip, assume array element #0, original RTL-8139 in this case */ |
|
956 printk (KERN_DEBUG PFX "%s: unknown chip version, assuming RTL-8139\n", |
|
957 pci_name(pdev)); |
|
958 printk (KERN_DEBUG PFX "%s: TxConfig = 0x%lx\n", pci_name(pdev), RTL_R32 (TxConfig)); |
|
959 tp->chipset = 0; |
|
960 |
|
961 match: |
|
962 DPRINTK ("chipset id (%d) == index %d, '%s'\n", |
|
963 version, i, rtl_chip_info[i].name); |
|
964 |
|
965 if (tp->chipset >= CH_8139B) { |
|
966 u8 new_tmp8 = tmp8 = RTL_R8 (Config1); |
|
967 DPRINTK("PCI PM wakeup\n"); |
|
968 if ((rtl_chip_info[tp->chipset].flags & HasLWake) && |
|
969 (tmp8 & LWAKE)) |
|
970 new_tmp8 &= ~LWAKE; |
|
971 new_tmp8 |= Cfg1_PM_Enable; |
|
972 if (new_tmp8 != tmp8) { |
|
973 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
974 RTL_W8 (Config1, tmp8); |
|
975 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
976 } |
|
977 if (rtl_chip_info[tp->chipset].flags & HasLWake) { |
|
978 tmp8 = RTL_R8 (Config4); |
|
979 if (tmp8 & LWPTN) { |
|
980 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
981 RTL_W8 (Config4, tmp8 & ~LWPTN); |
|
982 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
983 } |
|
984 } |
|
985 } else { |
|
986 DPRINTK("Old chip wakeup\n"); |
|
987 tmp8 = RTL_R8 (Config1); |
|
988 tmp8 &= ~(SLEEP | PWRDN); |
|
989 RTL_W8 (Config1, tmp8); |
|
990 } |
|
991 |
|
992 rtl8139_chip_reset (ioaddr); |
|
993 |
|
994 *dev_out = dev; |
|
995 return 0; |
|
996 |
|
997 err_out: |
|
998 __rtl8139_cleanup_dev (dev); |
|
999 if (disable_dev_on_err) |
|
1000 pci_disable_device (pdev); |
|
1001 return rc; |
|
1002 } |
|
1003 |
|
1004 |
|
1005 static int __devinit rtl8139_init_one (struct pci_dev *pdev, |
|
1006 const struct pci_device_id *ent) |
|
1007 { |
|
1008 struct net_device *dev = NULL; |
|
1009 struct rtl8139_private *tp; |
|
1010 int i, addr_len, option; |
|
1011 void __iomem *ioaddr; |
|
1012 static int board_idx = -1; |
|
1013 u8 pci_rev; |
|
1014 |
|
1015 assert (pdev != NULL); |
|
1016 assert (ent != NULL); |
|
1017 |
|
1018 board_idx++; |
|
1019 |
|
1020 /* when we're built into the kernel, the driver version message |
|
1021 * is only printed if at least one 8139 board has been found |
|
1022 */ |
|
1023 #ifndef MODULE |
|
1024 { |
|
1025 static int printed_version; |
|
1026 if (!printed_version++) |
|
1027 printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); |
|
1028 } |
|
1029 #endif |
|
1030 |
|
1031 pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev); |
|
1032 |
|
1033 if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
|
1034 pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pci_rev >= 0x20) { |
|
1035 printk(KERN_INFO PFX "pci dev %s (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n", |
|
1036 pci_name(pdev), pdev->vendor, pdev->device, pci_rev); |
|
1037 printk(KERN_INFO PFX "Use the \"8139cp\" driver for improved performance and stability.\n"); |
|
1038 } |
|
1039 |
|
1040 i = rtl8139_init_board (pdev, &dev); |
|
1041 if (i < 0) |
|
1042 return i; |
|
1043 |
|
1044 assert (dev != NULL); |
|
1045 tp = netdev_priv(dev); |
|
1046 |
|
1047 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1048 |
|
1049 if (board_idx == ec_device_index) { |
|
1050 rtl_ec_net_dev = dev; |
|
1051 strcpy(dev->name, "ec0"); |
|
1052 } |
|
1053 |
|
1054 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1055 |
|
1056 ioaddr = tp->mmio_addr; |
|
1057 assert (ioaddr != NULL); |
|
1058 |
|
1059 addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; |
|
1060 for (i = 0; i < 3; i++) |
|
1061 ((u16 *) (dev->dev_addr))[i] = |
|
1062 le16_to_cpu (read_eeprom (ioaddr, i + 7, addr_len)); |
|
1063 |
|
1064 /* The Rtl8139-specific entries in the device structure. */ |
|
1065 dev->open = rtl8139_open; |
|
1066 dev->hard_start_xmit = rtl8139_start_xmit; |
|
1067 dev->poll = rtl8139_poll; |
|
1068 dev->weight = 64; |
|
1069 dev->stop = rtl8139_close; |
|
1070 dev->get_stats = rtl8139_get_stats; |
|
1071 dev->set_multicast_list = rtl8139_set_rx_mode; |
|
1072 dev->do_ioctl = netdev_ioctl; |
|
1073 dev->ethtool_ops = &rtl8139_ethtool_ops; |
|
1074 dev->tx_timeout = rtl8139_tx_timeout; |
|
1075 dev->watchdog_timeo = TX_TIMEOUT; |
|
1076 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
1077 dev->poll_controller = rtl8139_poll_controller; |
|
1078 #endif |
|
1079 |
|
1080 /* note: the hardware is not capable of sg/csum/highdma, however |
|
1081 * through the use of skb_copy_and_csum_dev we enable these |
|
1082 * features |
|
1083 */ |
|
1084 dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; |
|
1085 |
|
1086 dev->irq = pdev->irq; |
|
1087 |
|
1088 /* tp zeroed and aligned in alloc_etherdev */ |
|
1089 tp = netdev_priv(dev); |
|
1090 |
|
1091 /* note: tp->chipset set in rtl8139_init_board */ |
|
1092 tp->drv_flags = board_info[ent->driver_data].hw_flags; |
|
1093 tp->mmio_addr = ioaddr; |
|
1094 tp->msg_enable = |
|
1095 (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); |
|
1096 spin_lock_init (&tp->lock); |
|
1097 spin_lock_init (&tp->rx_lock); |
|
1098 init_waitqueue_head (&tp->thr_wait); |
|
1099 init_completion (&tp->thr_exited); |
|
1100 tp->mii.dev = dev; |
|
1101 tp->mii.mdio_read = mdio_read; |
|
1102 tp->mii.mdio_write = mdio_write; |
|
1103 tp->mii.phy_id_mask = 0x3f; |
|
1104 tp->mii.reg_num_mask = 0x1f; |
|
1105 |
|
1106 /* dev is fully set up and ready to use now */ |
|
1107 |
|
1108 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1109 |
|
1110 if (dev != rtl_ec_net_dev) { |
|
1111 DPRINTK("about to register device named %s (%p)...\n", dev->name, dev); |
|
1112 i = register_netdev (dev); |
|
1113 if (i) goto err_out; |
|
1114 } |
|
1115 |
|
1116 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1117 |
|
1118 pci_set_drvdata (pdev, dev); |
|
1119 |
|
1120 printk (KERN_INFO "%s: %s at 0x%lx, " |
|
1121 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " |
|
1122 "IRQ %d\n", |
|
1123 dev->name, |
|
1124 board_info[ent->driver_data].name, |
|
1125 dev->base_addr, |
|
1126 dev->dev_addr[0], dev->dev_addr[1], |
|
1127 dev->dev_addr[2], dev->dev_addr[3], |
|
1128 dev->dev_addr[4], dev->dev_addr[5], |
|
1129 dev->irq); |
|
1130 |
|
1131 printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n", |
|
1132 dev->name, rtl_chip_info[tp->chipset].name); |
|
1133 |
|
1134 /* Find the connected MII xcvrs. |
|
1135 Doing this in open() would allow detecting external xcvrs later, but |
|
1136 takes too much time. */ |
|
1137 #ifdef CONFIG_8139TOO_8129 |
|
1138 if (tp->drv_flags & HAS_MII_XCVR) { |
|
1139 int phy, phy_idx = 0; |
|
1140 for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { |
|
1141 int mii_status = mdio_read(dev, phy, 1); |
|
1142 if (mii_status != 0xffff && mii_status != 0x0000) { |
|
1143 u16 advertising = mdio_read(dev, phy, 4); |
|
1144 tp->phys[phy_idx++] = phy; |
|
1145 printk(KERN_INFO "%s: MII transceiver %d status 0x%4.4x " |
|
1146 "advertising %4.4x.\n", |
|
1147 dev->name, phy, mii_status, advertising); |
|
1148 } |
|
1149 } |
|
1150 if (phy_idx == 0) { |
|
1151 printk(KERN_INFO "%s: No MII transceivers found! Assuming SYM " |
|
1152 "transceiver.\n", |
|
1153 dev->name); |
|
1154 tp->phys[0] = 32; |
|
1155 } |
|
1156 } else |
|
1157 #endif |
|
1158 tp->phys[0] = 32; |
|
1159 tp->mii.phy_id = tp->phys[0]; |
|
1160 |
|
1161 /* The lower four bits are the media type. */ |
|
1162 option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; |
|
1163 if (option > 0) { |
|
1164 tp->mii.full_duplex = (option & 0x210) ? 1 : 0; |
|
1165 tp->default_port = option & 0xFF; |
|
1166 if (tp->default_port) |
|
1167 tp->mii.force_media = 1; |
|
1168 } |
|
1169 if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) |
|
1170 tp->mii.full_duplex = full_duplex[board_idx]; |
|
1171 if (tp->mii.full_duplex) { |
|
1172 printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name); |
|
1173 /* Changing the MII-advertised media because might prevent |
|
1174 re-connection. */ |
|
1175 tp->mii.force_media = 1; |
|
1176 } |
|
1177 if (tp->default_port) { |
|
1178 printk(KERN_INFO " Forcing %dMbps %s-duplex operation.\n", |
|
1179 (option & 0x20 ? 100 : 10), |
|
1180 (option & 0x10 ? "full" : "half")); |
|
1181 mdio_write(dev, tp->phys[0], 0, |
|
1182 ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ |
|
1183 ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ |
|
1184 } |
|
1185 |
|
1186 /* Put the chip into low-power mode. */ |
|
1187 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
1188 RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
|
1189 |
|
1190 return 0; |
|
1191 |
|
1192 err_out: |
|
1193 __rtl8139_cleanup_dev (dev); |
|
1194 pci_disable_device (pdev); |
|
1195 return i; |
|
1196 } |
|
1197 |
|
1198 |
|
1199 static void __devexit rtl8139_remove_one (struct pci_dev *pdev) |
|
1200 { |
|
1201 struct net_device *dev = pci_get_drvdata (pdev); |
|
1202 |
|
1203 assert (dev != NULL); |
|
1204 |
|
1205 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1206 |
|
1207 if (dev != rtl_ec_net_dev) { |
|
1208 unregister_netdev (dev); |
|
1209 } |
|
1210 |
|
1211 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1212 |
|
1213 __rtl8139_cleanup_dev (dev); |
|
1214 pci_disable_device (pdev); |
|
1215 } |
|
1216 |
|
1217 |
|
1218 /* Serial EEPROM section. */ |
|
1219 |
|
1220 /* EEPROM_Ctrl bits. */ |
|
1221 #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ |
|
1222 #define EE_CS 0x08 /* EEPROM chip select. */ |
|
1223 #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ |
|
1224 #define EE_WRITE_0 0x00 |
|
1225 #define EE_WRITE_1 0x02 |
|
1226 #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ |
|
1227 #define EE_ENB (0x80 | EE_CS) |
|
1228 |
|
1229 /* Delay between EEPROM clock transitions. |
|
1230 No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. |
|
1231 */ |
|
1232 |
|
1233 #define eeprom_delay() RTL_R32(Cfg9346) |
|
1234 |
|
1235 /* The EEPROM commands include the alway-set leading bit. */ |
|
1236 #define EE_WRITE_CMD (5) |
|
1237 #define EE_READ_CMD (6) |
|
1238 #define EE_ERASE_CMD (7) |
|
1239 |
|
1240 static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len) |
|
1241 { |
|
1242 int i; |
|
1243 unsigned retval = 0; |
|
1244 int read_cmd = location | (EE_READ_CMD << addr_len); |
|
1245 |
|
1246 RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); |
|
1247 RTL_W8 (Cfg9346, EE_ENB); |
|
1248 eeprom_delay (); |
|
1249 |
|
1250 /* Shift the read command bits out. */ |
|
1251 for (i = 4 + addr_len; i >= 0; i--) { |
|
1252 int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; |
|
1253 RTL_W8 (Cfg9346, EE_ENB | dataval); |
|
1254 eeprom_delay (); |
|
1255 RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); |
|
1256 eeprom_delay (); |
|
1257 } |
|
1258 RTL_W8 (Cfg9346, EE_ENB); |
|
1259 eeprom_delay (); |
|
1260 |
|
1261 for (i = 16; i > 0; i--) { |
|
1262 RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); |
|
1263 eeprom_delay (); |
|
1264 retval = |
|
1265 (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : |
|
1266 0); |
|
1267 RTL_W8 (Cfg9346, EE_ENB); |
|
1268 eeprom_delay (); |
|
1269 } |
|
1270 |
|
1271 /* Terminate the EEPROM access. */ |
|
1272 RTL_W8 (Cfg9346, ~EE_CS); |
|
1273 eeprom_delay (); |
|
1274 |
|
1275 return retval; |
|
1276 } |
|
1277 |
|
1278 /* MII serial management: mostly bogus for now. */ |
|
1279 /* Read and write the MII management registers using software-generated |
|
1280 serial MDIO protocol. |
|
1281 The maximum data clock rate is 2.5 Mhz. The minimum timing is usually |
|
1282 met by back-to-back PCI I/O cycles, but we insert a delay to avoid |
|
1283 "overclocking" issues. */ |
|
1284 #define MDIO_DIR 0x80 |
|
1285 #define MDIO_DATA_OUT 0x04 |
|
1286 #define MDIO_DATA_IN 0x02 |
|
1287 #define MDIO_CLK 0x01 |
|
1288 #define MDIO_WRITE0 (MDIO_DIR) |
|
1289 #define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) |
|
1290 |
|
1291 #define mdio_delay() RTL_R8(Config4) |
|
1292 |
|
1293 |
|
1294 static char mii_2_8139_map[8] = { |
|
1295 BasicModeCtrl, |
|
1296 BasicModeStatus, |
|
1297 0, |
|
1298 0, |
|
1299 NWayAdvert, |
|
1300 NWayLPAR, |
|
1301 NWayExpansion, |
|
1302 0 |
|
1303 }; |
|
1304 |
|
1305 |
|
1306 #ifdef CONFIG_8139TOO_8129 |
|
1307 /* Syncronize the MII management interface by shifting 32 one bits out. */ |
|
1308 static void mdio_sync (void __iomem *ioaddr) |
|
1309 { |
|
1310 int i; |
|
1311 |
|
1312 for (i = 32; i >= 0; i--) { |
|
1313 RTL_W8 (Config4, MDIO_WRITE1); |
|
1314 mdio_delay (); |
|
1315 RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); |
|
1316 mdio_delay (); |
|
1317 } |
|
1318 } |
|
1319 #endif |
|
1320 |
|
1321 static int mdio_read (struct net_device *dev, int phy_id, int location) |
|
1322 { |
|
1323 struct rtl8139_private *tp = netdev_priv(dev); |
|
1324 int retval = 0; |
|
1325 #ifdef CONFIG_8139TOO_8129 |
|
1326 void __iomem *ioaddr = tp->mmio_addr; |
|
1327 int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; |
|
1328 int i; |
|
1329 #endif |
|
1330 |
|
1331 if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
|
1332 void __iomem *ioaddr = tp->mmio_addr; |
|
1333 return location < 8 && mii_2_8139_map[location] ? |
|
1334 RTL_R16 (mii_2_8139_map[location]) : 0; |
|
1335 } |
|
1336 |
|
1337 #ifdef CONFIG_8139TOO_8129 |
|
1338 mdio_sync (ioaddr); |
|
1339 /* Shift the read command bits out. */ |
|
1340 for (i = 15; i >= 0; i--) { |
|
1341 int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; |
|
1342 |
|
1343 RTL_W8 (Config4, MDIO_DIR | dataval); |
|
1344 mdio_delay (); |
|
1345 RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); |
|
1346 mdio_delay (); |
|
1347 } |
|
1348 |
|
1349 /* Read the two transition, 16 data, and wire-idle bits. */ |
|
1350 for (i = 19; i > 0; i--) { |
|
1351 RTL_W8 (Config4, 0); |
|
1352 mdio_delay (); |
|
1353 retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); |
|
1354 RTL_W8 (Config4, MDIO_CLK); |
|
1355 mdio_delay (); |
|
1356 } |
|
1357 #endif |
|
1358 |
|
1359 return (retval >> 1) & 0xffff; |
|
1360 } |
|
1361 |
|
1362 |
|
1363 static void mdio_write (struct net_device *dev, int phy_id, int location, |
|
1364 int value) |
|
1365 { |
|
1366 struct rtl8139_private *tp = netdev_priv(dev); |
|
1367 #ifdef CONFIG_8139TOO_8129 |
|
1368 void __iomem *ioaddr = tp->mmio_addr; |
|
1369 int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; |
|
1370 int i; |
|
1371 #endif |
|
1372 |
|
1373 if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
|
1374 void __iomem *ioaddr = tp->mmio_addr; |
|
1375 if (location == 0) { |
|
1376 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
1377 RTL_W16 (BasicModeCtrl, value); |
|
1378 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1379 } else if (location < 8 && mii_2_8139_map[location]) |
|
1380 RTL_W16 (mii_2_8139_map[location], value); |
|
1381 return; |
|
1382 } |
|
1383 |
|
1384 #ifdef CONFIG_8139TOO_8129 |
|
1385 mdio_sync (ioaddr); |
|
1386 |
|
1387 /* Shift the command bits out. */ |
|
1388 for (i = 31; i >= 0; i--) { |
|
1389 int dataval = |
|
1390 (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; |
|
1391 RTL_W8 (Config4, dataval); |
|
1392 mdio_delay (); |
|
1393 RTL_W8 (Config4, dataval | MDIO_CLK); |
|
1394 mdio_delay (); |
|
1395 } |
|
1396 /* Clear out extra bits. */ |
|
1397 for (i = 2; i > 0; i--) { |
|
1398 RTL_W8 (Config4, 0); |
|
1399 mdio_delay (); |
|
1400 RTL_W8 (Config4, MDIO_CLK); |
|
1401 mdio_delay (); |
|
1402 } |
|
1403 #endif |
|
1404 } |
|
1405 |
|
1406 |
|
1407 static int rtl8139_open (struct net_device *dev) |
|
1408 { |
|
1409 struct rtl8139_private *tp = netdev_priv(dev); |
|
1410 int retval; |
|
1411 void __iomem *ioaddr = tp->mmio_addr; |
|
1412 |
|
1413 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1414 |
|
1415 if (dev != rtl_ec_net_dev) { |
|
1416 retval = request_irq(dev->irq, rtl8139_interrupt, |
|
1417 SA_SHIRQ, dev->name, dev); |
|
1418 if (retval) |
|
1419 return retval; |
|
1420 } |
|
1421 |
|
1422 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1423 |
|
1424 tp->tx_bufs = pci_alloc_consistent(tp->pci_dev, TX_BUF_TOT_LEN, |
|
1425 &tp->tx_bufs_dma); |
|
1426 tp->rx_ring = pci_alloc_consistent(tp->pci_dev, RX_BUF_TOT_LEN, |
|
1427 &tp->rx_ring_dma); |
|
1428 if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { |
|
1429 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1430 |
|
1431 if (dev != rtl_ec_net_dev) { |
|
1432 free_irq(dev->irq, dev); |
|
1433 } |
|
1434 |
|
1435 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1436 |
|
1437 if (tp->tx_bufs) |
|
1438 pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN, |
|
1439 tp->tx_bufs, tp->tx_bufs_dma); |
|
1440 if (tp->rx_ring) |
|
1441 pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN, |
|
1442 tp->rx_ring, tp->rx_ring_dma); |
|
1443 |
|
1444 return -ENOMEM; |
|
1445 |
|
1446 } |
|
1447 |
|
1448 tp->mii.full_duplex = tp->mii.force_media; |
|
1449 tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000; |
|
1450 |
|
1451 rtl8139_init_ring (dev); |
|
1452 rtl8139_hw_start (dev); |
|
1453 |
|
1454 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1455 |
|
1456 if (dev != rtl_ec_net_dev) { |
|
1457 netif_start_queue (dev); |
|
1458 |
|
1459 if (netif_msg_ifup(tp)) |
|
1460 printk(KERN_DEBUG "%s: rtl8139_open() ioaddr %#lx IRQ %d" |
|
1461 " GP Pins %2.2x %s-duplex.\n", |
|
1462 dev->name, pci_resource_start (tp->pci_dev, 1), |
|
1463 dev->irq, RTL_R8 (MediaStatus), |
|
1464 tp->mii.full_duplex ? "full" : "half"); |
|
1465 |
|
1466 rtl8139_start_thread(dev); |
|
1467 } |
|
1468 |
|
1469 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1470 |
|
1471 return 0; |
|
1472 } |
|
1473 |
|
1474 |
|
1475 static void rtl_check_media (struct net_device *dev, unsigned int init_media) |
|
1476 { |
|
1477 struct rtl8139_private *tp = netdev_priv(dev); |
|
1478 |
|
1479 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1480 |
|
1481 if (dev != rtl_ec_net_dev) { |
|
1482 if (tp->phys[0] >= 0) { |
|
1483 mii_check_media(&tp->mii, netif_msg_link(tp), init_media); |
|
1484 } |
|
1485 } else { |
|
1486 void __iomem *ioaddr = tp->mmio_addr; |
|
1487 uint16_t state = RTL_R16(BasicModeStatus) & BMSR_LSTATUS; |
|
1488 ecdev_link_state(rtl_ec_dev, state ? 1 : 0); |
|
1489 } |
|
1490 |
|
1491 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1492 } |
|
1493 |
|
1494 /* Start the hardware at open or resume. */ |
|
1495 static void rtl8139_hw_start (struct net_device *dev) |
|
1496 { |
|
1497 struct rtl8139_private *tp = netdev_priv(dev); |
|
1498 void __iomem *ioaddr = tp->mmio_addr; |
|
1499 u32 i; |
|
1500 u8 tmp; |
|
1501 |
|
1502 /* Bring old chips out of low-power mode. */ |
|
1503 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
1504 RTL_W8 (HltClk, 'R'); |
|
1505 |
|
1506 rtl8139_chip_reset (ioaddr); |
|
1507 |
|
1508 /* unlock Config[01234] and BMCR register writes */ |
|
1509 RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
|
1510 /* Restore our idea of the MAC address. */ |
|
1511 RTL_W32_F (MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0))); |
|
1512 RTL_W32_F (MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4))); |
|
1513 |
|
1514 /* Must enable Tx/Rx before setting transfer thresholds! */ |
|
1515 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
1516 |
|
1517 tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
|
1518 RTL_W32 (RxConfig, tp->rx_config); |
|
1519 RTL_W32 (TxConfig, rtl8139_tx_config); |
|
1520 |
|
1521 tp->cur_rx = 0; |
|
1522 |
|
1523 rtl_check_media (dev, 1); |
|
1524 |
|
1525 if (tp->chipset >= CH_8139B) { |
|
1526 /* Disable magic packet scanning, which is enabled |
|
1527 * when PM is enabled in Config1. It can be reenabled |
|
1528 * via ETHTOOL_SWOL if desired. */ |
|
1529 RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); |
|
1530 } |
|
1531 |
|
1532 DPRINTK("init buffer addresses\n"); |
|
1533 |
|
1534 /* Lock Config[01234] and BMCR register writes */ |
|
1535 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1536 |
|
1537 /* init Rx ring buffer DMA address */ |
|
1538 RTL_W32_F (RxBuf, tp->rx_ring_dma); |
|
1539 |
|
1540 /* init Tx buffer DMA addresses */ |
|
1541 for (i = 0; i < NUM_TX_DESC; i++) |
|
1542 RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); |
|
1543 |
|
1544 RTL_W32 (RxMissed, 0); |
|
1545 |
|
1546 rtl8139_set_rx_mode (dev); |
|
1547 |
|
1548 /* no early-rx interrupts */ |
|
1549 RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); |
|
1550 |
|
1551 /* make sure RxTx has started */ |
|
1552 tmp = RTL_R8 (ChipCmd); |
|
1553 if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) |
|
1554 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
1555 |
|
1556 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1557 |
|
1558 if (dev != rtl_ec_net_dev) { |
|
1559 /* Enable all known interrupts by setting the interrupt mask. */ |
|
1560 RTL_W16 (IntrMask, rtl8139_intr_mask); |
|
1561 } |
|
1562 |
|
1563 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1564 } |
|
1565 |
|
1566 |
|
1567 /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ |
|
1568 static void rtl8139_init_ring (struct net_device *dev) |
|
1569 { |
|
1570 struct rtl8139_private *tp = netdev_priv(dev); |
|
1571 int i; |
|
1572 |
|
1573 tp->cur_rx = 0; |
|
1574 tp->cur_tx = 0; |
|
1575 tp->dirty_tx = 0; |
|
1576 |
|
1577 for (i = 0; i < NUM_TX_DESC; i++) |
|
1578 tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; |
|
1579 } |
|
1580 |
|
1581 |
|
1582 /* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ |
|
1583 static int next_tick = 3 * HZ; |
|
1584 |
|
1585 #ifndef CONFIG_8139TOO_TUNE_TWISTER |
|
1586 static inline void rtl8139_tune_twister (struct net_device *dev, |
|
1587 struct rtl8139_private *tp) {} |
|
1588 #else |
|
1589 enum TwisterParamVals { |
|
1590 PARA78_default = 0x78fa8388, |
|
1591 PARA7c_default = 0xcb38de43, /* param[0][3] */ |
|
1592 PARA7c_xxx = 0xcb38de43, |
|
1593 }; |
|
1594 |
|
1595 static const unsigned long param[4][4] = { |
|
1596 {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, |
|
1597 {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
|
1598 {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
|
1599 {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} |
|
1600 }; |
|
1601 |
|
1602 static void rtl8139_tune_twister (struct net_device *dev, |
|
1603 struct rtl8139_private *tp) |
|
1604 { |
|
1605 int linkcase; |
|
1606 void __iomem *ioaddr = tp->mmio_addr; |
|
1607 |
|
1608 /* This is a complicated state machine to configure the "twister" for |
|
1609 impedance/echos based on the cable length. |
|
1610 All of this is magic and undocumented. |
|
1611 */ |
|
1612 switch (tp->twistie) { |
|
1613 case 1: |
|
1614 if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { |
|
1615 /* We have link beat, let us tune the twister. */ |
|
1616 RTL_W16 (CSCR, CSCR_LinkDownOffCmd); |
|
1617 tp->twistie = 2; /* Change to state 2. */ |
|
1618 next_tick = HZ / 10; |
|
1619 } else { |
|
1620 /* Just put in some reasonable defaults for when beat returns. */ |
|
1621 RTL_W16 (CSCR, CSCR_LinkDownCmd); |
|
1622 RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ |
|
1623 RTL_W32 (PARA78, PARA78_default); |
|
1624 RTL_W32 (PARA7c, PARA7c_default); |
|
1625 tp->twistie = 0; /* Bail from future actions. */ |
|
1626 } |
|
1627 break; |
|
1628 case 2: |
|
1629 /* Read how long it took to hear the echo. */ |
|
1630 linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; |
|
1631 if (linkcase == 0x7000) |
|
1632 tp->twist_row = 3; |
|
1633 else if (linkcase == 0x3000) |
|
1634 tp->twist_row = 2; |
|
1635 else if (linkcase == 0x1000) |
|
1636 tp->twist_row = 1; |
|
1637 else |
|
1638 tp->twist_row = 0; |
|
1639 tp->twist_col = 0; |
|
1640 tp->twistie = 3; /* Change to state 2. */ |
|
1641 next_tick = HZ / 10; |
|
1642 break; |
|
1643 case 3: |
|
1644 /* Put out four tuning parameters, one per 100msec. */ |
|
1645 if (tp->twist_col == 0) |
|
1646 RTL_W16 (FIFOTMS, 0); |
|
1647 RTL_W32 (PARA7c, param[(int) tp->twist_row] |
|
1648 [(int) tp->twist_col]); |
|
1649 next_tick = HZ / 10; |
|
1650 if (++tp->twist_col >= 4) { |
|
1651 /* For short cables we are done. |
|
1652 For long cables (row == 3) check for mistune. */ |
|
1653 tp->twistie = |
|
1654 (tp->twist_row == 3) ? 4 : 0; |
|
1655 } |
|
1656 break; |
|
1657 case 4: |
|
1658 /* Special case for long cables: check for mistune. */ |
|
1659 if ((RTL_R16 (CSCR) & |
|
1660 CSCR_LinkStatusBits) == 0x7000) { |
|
1661 tp->twistie = 0; |
|
1662 break; |
|
1663 } else { |
|
1664 RTL_W32 (PARA7c, 0xfb38de03); |
|
1665 tp->twistie = 5; |
|
1666 next_tick = HZ / 10; |
|
1667 } |
|
1668 break; |
|
1669 case 5: |
|
1670 /* Retune for shorter cable (column 2). */ |
|
1671 RTL_W32 (FIFOTMS, 0x20); |
|
1672 RTL_W32 (PARA78, PARA78_default); |
|
1673 RTL_W32 (PARA7c, PARA7c_default); |
|
1674 RTL_W32 (FIFOTMS, 0x00); |
|
1675 tp->twist_row = 2; |
|
1676 tp->twist_col = 0; |
|
1677 tp->twistie = 3; |
|
1678 next_tick = HZ / 10; |
|
1679 break; |
|
1680 |
|
1681 default: |
|
1682 /* do nothing */ |
|
1683 break; |
|
1684 } |
|
1685 } |
|
1686 #endif /* CONFIG_8139TOO_TUNE_TWISTER */ |
|
1687 |
|
1688 static inline void rtl8139_thread_iter (struct net_device *dev, |
|
1689 struct rtl8139_private *tp, |
|
1690 void __iomem *ioaddr) |
|
1691 { |
|
1692 int mii_lpa; |
|
1693 |
|
1694 mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); |
|
1695 |
|
1696 if (!tp->mii.force_media && mii_lpa != 0xffff) { |
|
1697 int duplex = (mii_lpa & LPA_100FULL) |
|
1698 || (mii_lpa & 0x01C0) == 0x0040; |
|
1699 if (tp->mii.full_duplex != duplex) { |
|
1700 tp->mii.full_duplex = duplex; |
|
1701 |
|
1702 if (mii_lpa) { |
|
1703 printk (KERN_INFO |
|
1704 "%s: Setting %s-duplex based on MII #%d link" |
|
1705 " partner ability of %4.4x.\n", |
|
1706 dev->name, |
|
1707 tp->mii.full_duplex ? "full" : "half", |
|
1708 tp->phys[0], mii_lpa); |
|
1709 } else { |
|
1710 printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n", |
|
1711 dev->name); |
|
1712 } |
|
1713 #if 0 |
|
1714 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
1715 RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); |
|
1716 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1717 #endif |
|
1718 } |
|
1719 } |
|
1720 |
|
1721 next_tick = HZ * 60; |
|
1722 |
|
1723 rtl8139_tune_twister (dev, tp); |
|
1724 |
|
1725 DPRINTK ("%s: Media selection tick, Link partner %4.4x.\n", |
|
1726 dev->name, RTL_R16 (NWayLPAR)); |
|
1727 DPRINTK ("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n", |
|
1728 dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus)); |
|
1729 DPRINTK ("%s: Chip config %2.2x %2.2x.\n", |
|
1730 dev->name, RTL_R8 (Config0), |
|
1731 RTL_R8 (Config1)); |
|
1732 } |
|
1733 |
|
1734 static int rtl8139_thread (void *data) |
|
1735 { |
|
1736 struct net_device *dev = data; |
|
1737 struct rtl8139_private *tp = netdev_priv(dev); |
|
1738 unsigned long timeout; |
|
1739 |
|
1740 daemonize("%s", dev->name); |
|
1741 allow_signal(SIGTERM); |
|
1742 |
|
1743 while (1) { |
|
1744 timeout = next_tick; |
|
1745 do { |
|
1746 timeout = interruptible_sleep_on_timeout (&tp->thr_wait, timeout); |
|
1747 /* make swsusp happy with our thread */ |
|
1748 try_to_freeze(); |
|
1749 } while (!signal_pending (current) && (timeout > 0)); |
|
1750 |
|
1751 if (signal_pending (current)) { |
|
1752 flush_signals(current); |
|
1753 } |
|
1754 |
|
1755 if (tp->time_to_die) |
|
1756 break; |
|
1757 |
|
1758 if (rtnl_lock_interruptible ()) |
|
1759 break; |
|
1760 rtl8139_thread_iter (dev, tp, tp->mmio_addr); |
|
1761 rtnl_unlock (); |
|
1762 } |
|
1763 |
|
1764 complete_and_exit (&tp->thr_exited, 0); |
|
1765 } |
|
1766 |
|
1767 static void rtl8139_start_thread(struct net_device *dev) |
|
1768 { |
|
1769 struct rtl8139_private *tp = netdev_priv(dev); |
|
1770 |
|
1771 tp->thr_pid = -1; |
|
1772 tp->twistie = 0; |
|
1773 tp->time_to_die = 0; |
|
1774 if (tp->chipset == CH_8139_K) |
|
1775 tp->twistie = 1; |
|
1776 else if (tp->drv_flags & HAS_LNK_CHNG) |
|
1777 return; |
|
1778 |
|
1779 tp->thr_pid = kernel_thread(rtl8139_thread, dev, CLONE_FS|CLONE_FILES); |
|
1780 if (tp->thr_pid < 0) { |
|
1781 printk (KERN_WARNING "%s: unable to start kernel thread\n", |
|
1782 dev->name); |
|
1783 } |
|
1784 } |
|
1785 |
|
1786 static inline void rtl8139_tx_clear (struct rtl8139_private *tp) |
|
1787 { |
|
1788 tp->cur_tx = 0; |
|
1789 tp->dirty_tx = 0; |
|
1790 |
|
1791 /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ |
|
1792 } |
|
1793 |
|
1794 |
|
1795 static void rtl8139_tx_timeout (struct net_device *dev) |
|
1796 { |
|
1797 struct rtl8139_private *tp = netdev_priv(dev); |
|
1798 void __iomem *ioaddr = tp->mmio_addr; |
|
1799 int i; |
|
1800 u8 tmp8; |
|
1801 unsigned long flags; |
|
1802 |
|
1803 printk (KERN_DEBUG "%s: Transmit timeout, status %2.2x %4.4x %4.4x " |
|
1804 "media %2.2x.\n", dev->name, RTL_R8 (ChipCmd), |
|
1805 RTL_R16(IntrStatus), RTL_R16(IntrMask), RTL_R8(MediaStatus)); |
|
1806 /* Emit info to figure out what went wrong. */ |
|
1807 printk (KERN_DEBUG "%s: Tx queue start entry %ld dirty entry %ld.\n", |
|
1808 dev->name, tp->cur_tx, tp->dirty_tx); |
|
1809 for (i = 0; i < NUM_TX_DESC; i++) |
|
1810 printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n", |
|
1811 dev->name, i, RTL_R32 (TxStatus0 + (i * 4)), |
|
1812 i == tp->dirty_tx % NUM_TX_DESC ? |
|
1813 " (queue head)" : ""); |
|
1814 |
|
1815 tp->xstats.tx_timeouts++; |
|
1816 |
|
1817 /* disable Tx ASAP, if not already */ |
|
1818 tmp8 = RTL_R8 (ChipCmd); |
|
1819 if (tmp8 & CmdTxEnb) |
|
1820 RTL_W8 (ChipCmd, CmdRxEnb); |
|
1821 |
|
1822 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1823 |
|
1824 if (dev != rtl_ec_net_dev) { |
|
1825 spin_lock(&tp->rx_lock); |
|
1826 /* Disable interrupts by clearing the interrupt mask. */ |
|
1827 RTL_W16 (IntrMask, 0x0000); |
|
1828 |
|
1829 /* Stop a shared interrupt from scavenging while we are. */ |
|
1830 spin_lock_irqsave (&tp->lock, flags); |
|
1831 rtl8139_tx_clear (tp); |
|
1832 spin_unlock_irqrestore (&tp->lock, flags); |
|
1833 |
|
1834 /* ...and finally, reset everything */ |
|
1835 if (netif_running(dev)) { |
|
1836 rtl8139_hw_start (dev); |
|
1837 netif_wake_queue (dev); |
|
1838 } |
|
1839 spin_unlock(&tp->rx_lock); |
|
1840 } else { |
|
1841 rtl8139_tx_clear (tp); |
|
1842 rtl8139_hw_start (dev); |
|
1843 } |
|
1844 |
|
1845 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1846 } |
|
1847 |
|
1848 |
|
1849 static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev) |
|
1850 { |
|
1851 struct rtl8139_private *tp = netdev_priv(dev); |
|
1852 void __iomem *ioaddr = tp->mmio_addr; |
|
1853 unsigned int entry; |
|
1854 unsigned int len = skb->len; |
|
1855 |
|
1856 /* Calculate the next Tx descriptor entry. */ |
|
1857 entry = tp->cur_tx % NUM_TX_DESC; |
|
1858 |
|
1859 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1860 |
|
1861 /* Note: the chip doesn't have auto-pad! */ |
|
1862 if (likely(len < TX_BUF_SIZE)) { |
|
1863 if (len < ETH_ZLEN) |
|
1864 memset(tp->tx_buf[entry], 0, ETH_ZLEN); |
|
1865 skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); |
|
1866 if (dev != rtl_ec_net_dev) { |
|
1867 dev_kfree_skb(skb); |
|
1868 } |
|
1869 } else { |
|
1870 if (dev != rtl_ec_net_dev) { |
|
1871 dev_kfree_skb(skb); |
|
1872 } |
|
1873 tp->stats.tx_dropped++; |
|
1874 return 0; |
|
1875 } |
|
1876 |
|
1877 if (dev != rtl_ec_net_dev) { |
|
1878 spin_lock_irq(&tp->lock); |
|
1879 } |
|
1880 |
|
1881 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1882 |
|
1883 RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), |
|
1884 tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); |
|
1885 |
|
1886 dev->trans_start = jiffies; |
|
1887 |
|
1888 tp->cur_tx++; |
|
1889 wmb(); |
|
1890 |
|
1891 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1892 |
|
1893 if (dev != rtl_ec_net_dev) { |
|
1894 if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) |
|
1895 netif_stop_queue (dev); |
|
1896 spin_unlock_irq(&tp->lock); |
|
1897 |
|
1898 if (netif_msg_tx_queued(tp)) |
|
1899 printk (KERN_DEBUG "%s: Queued Tx packet size %u to slot %d.\n", |
|
1900 dev->name, len, entry); |
|
1901 } |
|
1902 |
|
1903 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1904 |
|
1905 return 0; |
|
1906 } |
|
1907 |
|
1908 |
|
1909 static void rtl8139_tx_interrupt (struct net_device *dev, |
|
1910 struct rtl8139_private *tp, |
|
1911 void __iomem *ioaddr) |
|
1912 { |
|
1913 unsigned long dirty_tx, tx_left; |
|
1914 |
|
1915 assert (dev != NULL); |
|
1916 assert (ioaddr != NULL); |
|
1917 |
|
1918 dirty_tx = tp->dirty_tx; |
|
1919 tx_left = tp->cur_tx - dirty_tx; |
|
1920 while (tx_left > 0) { |
|
1921 int entry = dirty_tx % NUM_TX_DESC; |
|
1922 int txstatus; |
|
1923 |
|
1924 txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); |
|
1925 |
|
1926 if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) |
|
1927 break; /* It still hasn't been Txed */ |
|
1928 |
|
1929 /* Note: TxCarrierLost is always asserted at 100mbps. */ |
|
1930 if (txstatus & (TxOutOfWindow | TxAborted)) { |
|
1931 /* There was an major error, log it. */ |
|
1932 if (netif_msg_tx_err(tp)) |
|
1933 printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n", |
|
1934 dev->name, txstatus); |
|
1935 tp->stats.tx_errors++; |
|
1936 if (txstatus & TxAborted) { |
|
1937 tp->stats.tx_aborted_errors++; |
|
1938 RTL_W32 (TxConfig, TxClearAbt); |
|
1939 RTL_W16 (IntrStatus, TxErr); |
|
1940 wmb(); |
|
1941 } |
|
1942 if (txstatus & TxCarrierLost) |
|
1943 tp->stats.tx_carrier_errors++; |
|
1944 if (txstatus & TxOutOfWindow) |
|
1945 tp->stats.tx_window_errors++; |
|
1946 } else { |
|
1947 if (txstatus & TxUnderrun) { |
|
1948 /* Add 64 to the Tx FIFO threshold. */ |
|
1949 if (tp->tx_flag < 0x00300000) |
|
1950 tp->tx_flag += 0x00020000; |
|
1951 tp->stats.tx_fifo_errors++; |
|
1952 } |
|
1953 tp->stats.collisions += (txstatus >> 24) & 15; |
|
1954 tp->stats.tx_bytes += txstatus & 0x7ff; |
|
1955 tp->stats.tx_packets++; |
|
1956 } |
|
1957 |
|
1958 dirty_tx++; |
|
1959 tx_left--; |
|
1960 } |
|
1961 |
|
1962 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
1963 |
|
1964 #ifndef RTL8139_NDEBUG |
|
1965 if (dev != rtl_ec_net_dev && tp->cur_tx - dirty_tx > NUM_TX_DESC) { |
|
1966 printk (KERN_ERR "%s: Out-of-sync dirty pointer, %ld vs. %ld.\n", |
|
1967 dev->name, dirty_tx, tp->cur_tx); |
|
1968 dirty_tx += NUM_TX_DESC; |
|
1969 } |
|
1970 #endif /* RTL8139_NDEBUG */ |
|
1971 |
|
1972 if (dev != rtl_ec_net_dev) { |
|
1973 /* only wake the queue if we did work, and the queue is stopped */ |
|
1974 if (tp->dirty_tx != dirty_tx) { |
|
1975 tp->dirty_tx = dirty_tx; |
|
1976 mb(); |
|
1977 netif_wake_queue (dev); |
|
1978 } |
|
1979 } |
|
1980 |
|
1981 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
1982 } |
|
1983 |
|
1984 |
|
1985 /* TODO: clean this up! Rx reset need not be this intensive */ |
|
1986 static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, |
|
1987 struct rtl8139_private *tp, void __iomem *ioaddr) |
|
1988 { |
|
1989 u8 tmp8; |
|
1990 #ifdef CONFIG_8139_OLD_RX_RESET |
|
1991 int tmp_work; |
|
1992 #endif |
|
1993 |
|
1994 if (netif_msg_rx_err (tp)) |
|
1995 printk(KERN_DEBUG "%s: Ethernet frame had errors, status %8.8x.\n", |
|
1996 dev->name, rx_status); |
|
1997 tp->stats.rx_errors++; |
|
1998 if (!(rx_status & RxStatusOK)) { |
|
1999 if (rx_status & RxTooLong) { |
|
2000 DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n", |
|
2001 dev->name, rx_status); |
|
2002 /* A.C.: The chip hangs here. */ |
|
2003 } |
|
2004 if (rx_status & (RxBadSymbol | RxBadAlign)) |
|
2005 tp->stats.rx_frame_errors++; |
|
2006 if (rx_status & (RxRunt | RxTooLong)) |
|
2007 tp->stats.rx_length_errors++; |
|
2008 if (rx_status & RxCRCErr) |
|
2009 tp->stats.rx_crc_errors++; |
|
2010 } else { |
|
2011 tp->xstats.rx_lost_in_ring++; |
|
2012 } |
|
2013 |
|
2014 #ifndef CONFIG_8139_OLD_RX_RESET |
|
2015 tmp8 = RTL_R8 (ChipCmd); |
|
2016 RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); |
|
2017 RTL_W8 (ChipCmd, tmp8); |
|
2018 RTL_W32 (RxConfig, tp->rx_config); |
|
2019 tp->cur_rx = 0; |
|
2020 #else |
|
2021 /* Reset the receiver, based on RealTek recommendation. (Bug?) */ |
|
2022 |
|
2023 /* disable receive */ |
|
2024 RTL_W8_F (ChipCmd, CmdTxEnb); |
|
2025 tmp_work = 200; |
|
2026 while (--tmp_work > 0) { |
|
2027 udelay(1); |
|
2028 tmp8 = RTL_R8 (ChipCmd); |
|
2029 if (!(tmp8 & CmdRxEnb)) |
|
2030 break; |
|
2031 } |
|
2032 if (tmp_work <= 0) |
|
2033 printk (KERN_WARNING PFX "rx stop wait too long\n"); |
|
2034 /* restart receive */ |
|
2035 tmp_work = 200; |
|
2036 while (--tmp_work > 0) { |
|
2037 RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
2038 udelay(1); |
|
2039 tmp8 = RTL_R8 (ChipCmd); |
|
2040 if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) |
|
2041 break; |
|
2042 } |
|
2043 if (tmp_work <= 0) |
|
2044 printk (KERN_WARNING PFX "tx/rx enable wait too long\n"); |
|
2045 |
|
2046 /* and reinitialize all rx related registers */ |
|
2047 RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
|
2048 /* Must enable Tx/Rx before setting transfer thresholds! */ |
|
2049 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
2050 |
|
2051 tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
|
2052 RTL_W32 (RxConfig, tp->rx_config); |
|
2053 tp->cur_rx = 0; |
|
2054 |
|
2055 DPRINTK("init buffer addresses\n"); |
|
2056 |
|
2057 /* Lock Config[01234] and BMCR register writes */ |
|
2058 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
2059 |
|
2060 /* init Rx ring buffer DMA address */ |
|
2061 RTL_W32_F (RxBuf, tp->rx_ring_dma); |
|
2062 |
|
2063 /* A.C.: Reset the multicast list. */ |
|
2064 __set_rx_mode (dev); |
|
2065 #endif |
|
2066 } |
|
2067 |
|
2068 #if RX_BUF_IDX == 3 |
|
2069 static __inline__ void wrap_copy(struct sk_buff *skb, const unsigned char *ring, |
|
2070 u32 offset, unsigned int size) |
|
2071 { |
|
2072 u32 left = RX_BUF_LEN - offset; |
|
2073 |
|
2074 if (size > left) { |
|
2075 memcpy(skb->data, ring + offset, left); |
|
2076 memcpy(skb->data+left, ring, size - left); |
|
2077 } else |
|
2078 memcpy(skb->data, ring + offset, size); |
|
2079 } |
|
2080 #endif |
|
2081 |
|
2082 static void rtl8139_isr_ack(struct rtl8139_private *tp) |
|
2083 { |
|
2084 void __iomem *ioaddr = tp->mmio_addr; |
|
2085 u16 status; |
|
2086 |
|
2087 status = RTL_R16 (IntrStatus) & RxAckBits; |
|
2088 |
|
2089 /* Clear out errors and receive interrupts */ |
|
2090 if (likely(status != 0)) { |
|
2091 if (unlikely(status & (RxFIFOOver | RxOverflow))) { |
|
2092 tp->stats.rx_errors++; |
|
2093 if (status & RxFIFOOver) |
|
2094 tp->stats.rx_fifo_errors++; |
|
2095 } |
|
2096 RTL_W16_F (IntrStatus, RxAckBits); |
|
2097 } |
|
2098 } |
|
2099 |
|
2100 static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, |
|
2101 int budget) |
|
2102 { |
|
2103 void __iomem *ioaddr = tp->mmio_addr; |
|
2104 int received = 0; |
|
2105 unsigned char *rx_ring = tp->rx_ring; |
|
2106 unsigned int cur_rx = tp->cur_rx; |
|
2107 unsigned int rx_size = 0; |
|
2108 |
|
2109 DPRINTK ("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x," |
|
2110 " free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx, |
|
2111 RTL_R16 (RxBufAddr), |
|
2112 RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); |
|
2113 |
|
2114 |
|
2115 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2116 |
|
2117 while ((dev == rtl_ec_net_dev || netif_running(dev)) |
|
2118 && received < budget |
|
2119 && (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { |
|
2120 |
|
2121 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2122 |
|
2123 u32 ring_offset = cur_rx % RX_BUF_LEN; |
|
2124 u32 rx_status; |
|
2125 unsigned int pkt_size; |
|
2126 struct sk_buff *skb; |
|
2127 |
|
2128 rmb(); |
|
2129 |
|
2130 /* read size+status of next frame from DMA ring buffer */ |
|
2131 rx_status = le32_to_cpu (*(u32 *) (rx_ring + ring_offset)); |
|
2132 rx_size = rx_status >> 16; |
|
2133 pkt_size = rx_size - 4; |
|
2134 |
|
2135 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2136 |
|
2137 if (dev != rtl_ec_net_dev) { |
|
2138 if (netif_msg_rx_status(tp)) |
|
2139 printk(KERN_DEBUG "%s: rtl8139_rx() status %4.4x, size %4.4x," |
|
2140 " cur %4.4x.\n", dev->name, rx_status, |
|
2141 rx_size, cur_rx); |
|
2142 } |
|
2143 |
|
2144 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2145 |
|
2146 #if RTL8139_DEBUG > 2 |
|
2147 { |
|
2148 int i; |
|
2149 DPRINTK ("%s: Frame contents ", dev->name); |
|
2150 for (i = 0; i < 70; i++) |
|
2151 printk (" %2.2x", |
|
2152 rx_ring[ring_offset + i]); |
|
2153 printk (".\n"); |
|
2154 } |
|
2155 #endif |
|
2156 |
|
2157 /* Packet copy from FIFO still in progress. |
|
2158 * Theoretically, this should never happen |
|
2159 * since EarlyRx is disabled. |
|
2160 */ |
|
2161 if (unlikely(rx_size == 0xfff0)) { |
|
2162 if (!tp->fifo_copy_timeout) |
|
2163 tp->fifo_copy_timeout = jiffies + 2; |
|
2164 else if (time_after(jiffies, tp->fifo_copy_timeout)) { |
|
2165 DPRINTK ("%s: hung FIFO. Reset.", dev->name); |
|
2166 rx_size = 0; |
|
2167 goto no_early_rx; |
|
2168 } |
|
2169 if (netif_msg_intr(tp)) { |
|
2170 printk(KERN_DEBUG "%s: fifo copy in progress.", |
|
2171 dev->name); |
|
2172 } |
|
2173 tp->xstats.early_rx++; |
|
2174 break; |
|
2175 } |
|
2176 |
|
2177 no_early_rx: |
|
2178 tp->fifo_copy_timeout = 0; |
|
2179 |
|
2180 /* If Rx err or invalid rx_size/rx_status received |
|
2181 * (which happens if we get lost in the ring), |
|
2182 * Rx process gets reset, so we abort any further |
|
2183 * Rx processing. |
|
2184 */ |
|
2185 if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || |
|
2186 (rx_size < 8) || |
|
2187 (!(rx_status & RxStatusOK)))) { |
|
2188 rtl8139_rx_err (rx_status, dev, tp, ioaddr); |
|
2189 received = -1; |
|
2190 goto out; |
|
2191 } |
|
2192 |
|
2193 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2194 |
|
2195 if (dev != rtl_ec_net_dev) { |
|
2196 /* Malloc up new buffer, compatible with net-2e. */ |
|
2197 /* Omit the four octet CRC from the length. */ |
|
2198 |
|
2199 skb = dev_alloc_skb (pkt_size + 2); |
|
2200 if (likely(skb)) { |
|
2201 skb->dev = dev; |
|
2202 skb_reserve (skb, 2); /* 16 byte align the IP fields. */ |
|
2203 #if RX_BUF_IDX == 3 |
|
2204 wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); |
|
2205 #else |
|
2206 eth_copy_and_sum (skb, &rx_ring[ring_offset + 4], pkt_size, 0); |
|
2207 #endif |
|
2208 skb_put (skb, pkt_size); |
|
2209 |
|
2210 skb->protocol = eth_type_trans (skb, dev); |
|
2211 |
|
2212 dev->last_rx = jiffies; |
|
2213 tp->stats.rx_bytes += pkt_size; |
|
2214 tp->stats.rx_packets++; |
|
2215 |
|
2216 netif_receive_skb (skb); |
|
2217 } else { |
|
2218 if (net_ratelimit()) |
|
2219 printk(KERN_WARNING |
|
2220 "%s: Memory squeeze, dropping packet.\n", |
|
2221 dev->name); |
|
2222 tp->stats.rx_dropped++; |
|
2223 } |
|
2224 } else { |
|
2225 ecdev_receive(rtl_ec_dev, |
|
2226 &rx_ring[ring_offset + 4], pkt_size); |
|
2227 dev->last_rx = jiffies; |
|
2228 tp->stats.rx_bytes += pkt_size; |
|
2229 tp->stats.rx_packets++; |
|
2230 } |
|
2231 |
|
2232 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2233 |
|
2234 received++; |
|
2235 |
|
2236 cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; |
|
2237 RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); |
|
2238 |
|
2239 rtl8139_isr_ack(tp); |
|
2240 } |
|
2241 |
|
2242 if (unlikely(!received || rx_size == 0xfff0)) |
|
2243 rtl8139_isr_ack(tp); |
|
2244 |
|
2245 #if RTL8139_DEBUG > 1 |
|
2246 DPRINTK ("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x," |
|
2247 " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx, |
|
2248 RTL_R16 (RxBufAddr), |
|
2249 RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); |
|
2250 #endif |
|
2251 |
|
2252 tp->cur_rx = cur_rx; |
|
2253 |
|
2254 /* |
|
2255 * The receive buffer should be mostly empty. |
|
2256 * Tell NAPI to reenable the Rx irq. |
|
2257 */ |
|
2258 if (tp->fifo_copy_timeout) |
|
2259 received = budget; |
|
2260 |
|
2261 out: |
|
2262 return received; |
|
2263 } |
|
2264 |
|
2265 |
|
2266 static void rtl8139_weird_interrupt (struct net_device *dev, |
|
2267 struct rtl8139_private *tp, |
|
2268 void __iomem *ioaddr, |
|
2269 int status, int link_changed) |
|
2270 { |
|
2271 DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n", |
|
2272 dev->name, status); |
|
2273 |
|
2274 assert (dev != NULL); |
|
2275 assert (tp != NULL); |
|
2276 assert (ioaddr != NULL); |
|
2277 |
|
2278 /* Update the error count. */ |
|
2279 tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2280 RTL_W32 (RxMissed, 0); |
|
2281 |
|
2282 if ((status & RxUnderrun) && link_changed && |
|
2283 (tp->drv_flags & HAS_LNK_CHNG)) { |
|
2284 rtl_check_media(dev, 0); |
|
2285 status &= ~RxUnderrun; |
|
2286 } |
|
2287 |
|
2288 if (status & (RxUnderrun | RxErr)) |
|
2289 tp->stats.rx_errors++; |
|
2290 |
|
2291 if (status & PCSTimeout) |
|
2292 tp->stats.rx_length_errors++; |
|
2293 if (status & RxUnderrun) |
|
2294 tp->stats.rx_fifo_errors++; |
|
2295 if (status & PCIErr) { |
|
2296 u16 pci_cmd_status; |
|
2297 pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); |
|
2298 pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); |
|
2299 |
|
2300 printk (KERN_ERR "%s: PCI Bus error %4.4x.\n", |
|
2301 dev->name, pci_cmd_status); |
|
2302 } |
|
2303 } |
|
2304 |
|
2305 static int rtl8139_poll(struct net_device *dev, int *budget) |
|
2306 { |
|
2307 struct rtl8139_private *tp = netdev_priv(dev); |
|
2308 void __iomem *ioaddr = tp->mmio_addr; |
|
2309 int orig_budget = min(*budget, dev->quota); |
|
2310 int done = 1; |
|
2311 |
|
2312 spin_lock(&tp->rx_lock); |
|
2313 if (likely(RTL_R16(IntrStatus) & RxAckBits)) { |
|
2314 int work_done; |
|
2315 |
|
2316 work_done = rtl8139_rx(dev, tp, orig_budget); |
|
2317 if (likely(work_done > 0)) { |
|
2318 *budget -= work_done; |
|
2319 dev->quota -= work_done; |
|
2320 done = (work_done < orig_budget); |
|
2321 } |
|
2322 } |
|
2323 |
|
2324 if (done) { |
|
2325 /* |
|
2326 * Order is important since data can get interrupted |
|
2327 * again when we think we are done. |
|
2328 */ |
|
2329 local_irq_disable(); |
|
2330 RTL_W16_F(IntrMask, rtl8139_intr_mask); |
|
2331 __netif_rx_complete(dev); |
|
2332 local_irq_enable(); |
|
2333 } |
|
2334 spin_unlock(&tp->rx_lock); |
|
2335 |
|
2336 return !done; |
|
2337 } |
|
2338 |
|
2339 /* The interrupt handler does all of the Rx thread work and cleans up |
|
2340 after the Tx thread. */ |
|
2341 irqreturn_t rtl8139_interrupt (int irq, void *dev_instance, |
|
2342 struct pt_regs *regs) |
|
2343 { |
|
2344 struct net_device *dev = (struct net_device *) dev_instance; |
|
2345 struct rtl8139_private *tp = netdev_priv(dev); |
|
2346 void __iomem *ioaddr = tp->mmio_addr; |
|
2347 u16 status, ackstat; |
|
2348 int link_changed = 0; /* avoid bogus "uninit" warning */ |
|
2349 int handled = 0; |
|
2350 |
|
2351 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2352 |
|
2353 if (dev != rtl_ec_net_dev) { |
|
2354 spin_lock (&tp->lock); |
|
2355 status = RTL_R16 (IntrStatus); |
|
2356 |
|
2357 /* shared irq? */ |
|
2358 if (unlikely((status & rtl8139_intr_mask) == 0)) |
|
2359 goto out; |
|
2360 } else { |
|
2361 status = RTL_R16 (IntrStatus); |
|
2362 } |
|
2363 |
|
2364 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2365 |
|
2366 handled = 1; |
|
2367 |
|
2368 /* h/w no longer present (hotplug?) or major error, bail */ |
|
2369 if (unlikely(status == 0xFFFF)) |
|
2370 goto out; |
|
2371 |
|
2372 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2373 |
|
2374 if (dev != rtl_ec_net_dev) { |
|
2375 /* close possible race's with dev_close */ |
|
2376 if (unlikely(!netif_running(dev))) { |
|
2377 RTL_W16 (IntrMask, 0); |
|
2378 goto out; |
|
2379 } |
|
2380 } |
|
2381 |
|
2382 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2383 |
|
2384 /* Acknowledge all of the current interrupt sources ASAP, but |
|
2385 an first get an additional status bit from CSCR. */ |
|
2386 if (unlikely(status & RxUnderrun)) |
|
2387 link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; |
|
2388 |
|
2389 ackstat = status & ~(RxAckBits | TxErr); |
|
2390 if (ackstat) |
|
2391 RTL_W16 (IntrStatus, ackstat); |
|
2392 |
|
2393 /* Receive packets are processed by poll routine. |
|
2394 If not running start it now. */ |
|
2395 |
|
2396 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2397 |
|
2398 if (status & RxAckBits){ |
|
2399 if (dev != rtl_ec_net_dev) { |
|
2400 /* Mark for polling */ |
|
2401 if (netif_rx_schedule_prep(dev)) { |
|
2402 RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); |
|
2403 __netif_rx_schedule (dev); |
|
2404 } |
|
2405 } else { |
|
2406 /* EtherCAT device: Just receive all frames */ |
|
2407 rtl8139_rx(dev, tp, 100); // FIXME |
|
2408 } |
|
2409 } |
|
2410 |
|
2411 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2412 |
|
2413 /* Check uncommon events with one test. */ |
|
2414 if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) |
|
2415 rtl8139_weird_interrupt (dev, tp, ioaddr, |
|
2416 status, link_changed); |
|
2417 |
|
2418 if (status & (TxOK | TxErr)) { |
|
2419 rtl8139_tx_interrupt (dev, tp, ioaddr); |
|
2420 if (status & TxErr) |
|
2421 RTL_W16 (IntrStatus, TxErr); |
|
2422 } |
|
2423 out: |
|
2424 |
|
2425 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2426 |
|
2427 if (dev != rtl_ec_net_dev) { |
|
2428 spin_unlock (&tp->lock); |
|
2429 } |
|
2430 |
|
2431 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2432 |
|
2433 DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n", |
|
2434 dev->name, RTL_R16 (IntrStatus)); |
|
2435 return IRQ_RETVAL(handled); |
|
2436 } |
|
2437 |
|
2438 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
2439 /* |
|
2440 * Polling receive - used by netconsole and other diagnostic tools |
|
2441 * to allow network i/o with interrupts disabled. |
|
2442 */ |
|
2443 static void rtl8139_poll_controller(struct net_device *dev) |
|
2444 { |
|
2445 disable_irq(dev->irq); |
|
2446 rtl8139_interrupt(dev->irq, dev, NULL); |
|
2447 enable_irq(dev->irq); |
|
2448 } |
|
2449 #endif |
|
2450 |
|
2451 static int rtl8139_close (struct net_device *dev) |
|
2452 { |
|
2453 struct rtl8139_private *tp = netdev_priv(dev); |
|
2454 void __iomem *ioaddr = tp->mmio_addr; |
|
2455 int ret = 0; |
|
2456 unsigned long flags; |
|
2457 |
|
2458 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2459 |
|
2460 if (dev != rtl_ec_net_dev) { |
|
2461 netif_stop_queue (dev); |
|
2462 |
|
2463 if (tp->thr_pid >= 0) { |
|
2464 tp->time_to_die = 1; |
|
2465 wmb(); |
|
2466 ret = kill_proc (tp->thr_pid, SIGTERM, 1); |
|
2467 if (ret) { |
|
2468 printk (KERN_ERR "%s: unable to signal thread\n", dev->name); |
|
2469 return ret; |
|
2470 } |
|
2471 wait_for_completion (&tp->thr_exited); |
|
2472 } |
|
2473 |
|
2474 if (netif_msg_ifdown(tp)) |
|
2475 printk(KERN_DEBUG "%s: Shutting down ethercard, status was 0x%4.4x.\n", |
|
2476 dev->name, RTL_R16 (IntrStatus)); |
|
2477 |
|
2478 spin_lock_irqsave (&tp->lock, flags); |
|
2479 |
|
2480 /* Stop the chip's Tx and Rx DMA processes. */ |
|
2481 RTL_W8 (ChipCmd, 0); |
|
2482 |
|
2483 /* Disable interrupts by clearing the interrupt mask. */ |
|
2484 RTL_W16 (IntrMask, 0); |
|
2485 |
|
2486 /* Update the error counts. */ |
|
2487 tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2488 RTL_W32 (RxMissed, 0); |
|
2489 |
|
2490 spin_unlock_irqrestore (&tp->lock, flags); |
|
2491 |
|
2492 synchronize_irq (dev->irq); /* racy, but that's ok here */ |
|
2493 free_irq (dev->irq, dev); |
|
2494 } else { |
|
2495 /* Stop the chip's Tx and Rx DMA processes. */ |
|
2496 RTL_W8 (ChipCmd, 0); |
|
2497 |
|
2498 /* Disable interrupts by clearing the interrupt mask. */ |
|
2499 RTL_W16 (IntrMask, 0); |
|
2500 |
|
2501 /* Update the error counts. */ |
|
2502 tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2503 RTL_W32 (RxMissed, 0); |
|
2504 } |
|
2505 |
|
2506 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2507 |
|
2508 rtl8139_tx_clear (tp); |
|
2509 |
|
2510 pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN, |
|
2511 tp->rx_ring, tp->rx_ring_dma); |
|
2512 pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN, |
|
2513 tp->tx_bufs, tp->tx_bufs_dma); |
|
2514 tp->rx_ring = NULL; |
|
2515 tp->tx_bufs = NULL; |
|
2516 |
|
2517 /* Green! Put the chip in low-power mode. */ |
|
2518 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
2519 |
|
2520 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
2521 RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
|
2522 |
|
2523 return 0; |
|
2524 } |
|
2525 |
|
2526 |
|
2527 /* Get the ethtool Wake-on-LAN settings. Assumes that wol points to |
|
2528 kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and |
|
2529 other threads or interrupts aren't messing with the 8139. */ |
|
2530 static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
|
2531 { |
|
2532 struct rtl8139_private *np = netdev_priv(dev); |
|
2533 void __iomem *ioaddr = np->mmio_addr; |
|
2534 |
|
2535 spin_lock_irq(&np->lock); |
|
2536 if (rtl_chip_info[np->chipset].flags & HasLWake) { |
|
2537 u8 cfg3 = RTL_R8 (Config3); |
|
2538 u8 cfg5 = RTL_R8 (Config5); |
|
2539 |
|
2540 wol->supported = WAKE_PHY | WAKE_MAGIC |
|
2541 | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; |
|
2542 |
|
2543 wol->wolopts = 0; |
|
2544 if (cfg3 & Cfg3_LinkUp) |
|
2545 wol->wolopts |= WAKE_PHY; |
|
2546 if (cfg3 & Cfg3_Magic) |
|
2547 wol->wolopts |= WAKE_MAGIC; |
|
2548 /* (KON)FIXME: See how netdev_set_wol() handles the |
|
2549 following constants. */ |
|
2550 if (cfg5 & Cfg5_UWF) |
|
2551 wol->wolopts |= WAKE_UCAST; |
|
2552 if (cfg5 & Cfg5_MWF) |
|
2553 wol->wolopts |= WAKE_MCAST; |
|
2554 if (cfg5 & Cfg5_BWF) |
|
2555 wol->wolopts |= WAKE_BCAST; |
|
2556 } |
|
2557 spin_unlock_irq(&np->lock); |
|
2558 } |
|
2559 |
|
2560 |
|
2561 /* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes |
|
2562 that wol points to kernel memory and other threads or interrupts |
|
2563 aren't messing with the 8139. */ |
|
2564 static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
|
2565 { |
|
2566 struct rtl8139_private *np = netdev_priv(dev); |
|
2567 void __iomem *ioaddr = np->mmio_addr; |
|
2568 u32 support; |
|
2569 u8 cfg3, cfg5; |
|
2570 |
|
2571 support = ((rtl_chip_info[np->chipset].flags & HasLWake) |
|
2572 ? (WAKE_PHY | WAKE_MAGIC |
|
2573 | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) |
|
2574 : 0); |
|
2575 if (wol->wolopts & ~support) |
|
2576 return -EINVAL; |
|
2577 |
|
2578 spin_lock_irq(&np->lock); |
|
2579 cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); |
|
2580 if (wol->wolopts & WAKE_PHY) |
|
2581 cfg3 |= Cfg3_LinkUp; |
|
2582 if (wol->wolopts & WAKE_MAGIC) |
|
2583 cfg3 |= Cfg3_Magic; |
|
2584 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
2585 RTL_W8 (Config3, cfg3); |
|
2586 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
2587 |
|
2588 cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); |
|
2589 /* (KON)FIXME: These are untested. We may have to set the |
|
2590 CRC0, Wakeup0 and LSBCRC0 registers too, but I have no |
|
2591 documentation. */ |
|
2592 if (wol->wolopts & WAKE_UCAST) |
|
2593 cfg5 |= Cfg5_UWF; |
|
2594 if (wol->wolopts & WAKE_MCAST) |
|
2595 cfg5 |= Cfg5_MWF; |
|
2596 if (wol->wolopts & WAKE_BCAST) |
|
2597 cfg5 |= Cfg5_BWF; |
|
2598 RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ |
|
2599 spin_unlock_irq(&np->lock); |
|
2600 |
|
2601 return 0; |
|
2602 } |
|
2603 |
|
2604 static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
|
2605 { |
|
2606 struct rtl8139_private *np = netdev_priv(dev); |
|
2607 strcpy(info->driver, DRV_NAME); |
|
2608 strcpy(info->version, DRV_VERSION); |
|
2609 strcpy(info->bus_info, pci_name(np->pci_dev)); |
|
2610 info->regdump_len = np->regs_len; |
|
2611 } |
|
2612 |
|
2613 static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
|
2614 { |
|
2615 struct rtl8139_private *np = netdev_priv(dev); |
|
2616 spin_lock_irq(&np->lock); |
|
2617 mii_ethtool_gset(&np->mii, cmd); |
|
2618 spin_unlock_irq(&np->lock); |
|
2619 return 0; |
|
2620 } |
|
2621 |
|
2622 static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
|
2623 { |
|
2624 struct rtl8139_private *np = netdev_priv(dev); |
|
2625 int rc; |
|
2626 spin_lock_irq(&np->lock); |
|
2627 rc = mii_ethtool_sset(&np->mii, cmd); |
|
2628 spin_unlock_irq(&np->lock); |
|
2629 return rc; |
|
2630 } |
|
2631 |
|
2632 static int rtl8139_nway_reset(struct net_device *dev) |
|
2633 { |
|
2634 struct rtl8139_private *np = netdev_priv(dev); |
|
2635 return mii_nway_restart(&np->mii); |
|
2636 } |
|
2637 |
|
2638 static u32 rtl8139_get_link(struct net_device *dev) |
|
2639 { |
|
2640 struct rtl8139_private *np = netdev_priv(dev); |
|
2641 return mii_link_ok(&np->mii); |
|
2642 } |
|
2643 |
|
2644 static u32 rtl8139_get_msglevel(struct net_device *dev) |
|
2645 { |
|
2646 struct rtl8139_private *np = netdev_priv(dev); |
|
2647 return np->msg_enable; |
|
2648 } |
|
2649 |
|
2650 static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) |
|
2651 { |
|
2652 struct rtl8139_private *np = netdev_priv(dev); |
|
2653 np->msg_enable = datum; |
|
2654 } |
|
2655 |
|
2656 /* TODO: we are too slack to do reg dumping for pio, for now */ |
|
2657 #ifdef CONFIG_8139TOO_PIO |
|
2658 #define rtl8139_get_regs_len NULL |
|
2659 #define rtl8139_get_regs NULL |
|
2660 #else |
|
2661 static int rtl8139_get_regs_len(struct net_device *dev) |
|
2662 { |
|
2663 struct rtl8139_private *np = netdev_priv(dev); |
|
2664 return np->regs_len; |
|
2665 } |
|
2666 |
|
2667 static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
|
2668 { |
|
2669 struct rtl8139_private *np = netdev_priv(dev); |
|
2670 |
|
2671 regs->version = RTL_REGS_VER; |
|
2672 |
|
2673 spin_lock_irq(&np->lock); |
|
2674 memcpy_fromio(regbuf, np->mmio_addr, regs->len); |
|
2675 spin_unlock_irq(&np->lock); |
|
2676 } |
|
2677 #endif /* CONFIG_8139TOO_MMIO */ |
|
2678 |
|
2679 static int rtl8139_get_stats_count(struct net_device *dev) |
|
2680 { |
|
2681 return RTL_NUM_STATS; |
|
2682 } |
|
2683 |
|
2684 static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) |
|
2685 { |
|
2686 struct rtl8139_private *np = netdev_priv(dev); |
|
2687 |
|
2688 data[0] = np->xstats.early_rx; |
|
2689 data[1] = np->xstats.tx_buf_mapped; |
|
2690 data[2] = np->xstats.tx_timeouts; |
|
2691 data[3] = np->xstats.rx_lost_in_ring; |
|
2692 } |
|
2693 |
|
2694 static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
|
2695 { |
|
2696 memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); |
|
2697 } |
|
2698 |
|
2699 static struct ethtool_ops rtl8139_ethtool_ops = { |
|
2700 .get_drvinfo = rtl8139_get_drvinfo, |
|
2701 .get_settings = rtl8139_get_settings, |
|
2702 .set_settings = rtl8139_set_settings, |
|
2703 .get_regs_len = rtl8139_get_regs_len, |
|
2704 .get_regs = rtl8139_get_regs, |
|
2705 .nway_reset = rtl8139_nway_reset, |
|
2706 .get_link = rtl8139_get_link, |
|
2707 .get_msglevel = rtl8139_get_msglevel, |
|
2708 .set_msglevel = rtl8139_set_msglevel, |
|
2709 .get_wol = rtl8139_get_wol, |
|
2710 .set_wol = rtl8139_set_wol, |
|
2711 .get_strings = rtl8139_get_strings, |
|
2712 .get_stats_count = rtl8139_get_stats_count, |
|
2713 .get_ethtool_stats = rtl8139_get_ethtool_stats, |
|
2714 }; |
|
2715 |
|
2716 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
|
2717 { |
|
2718 struct rtl8139_private *np = netdev_priv(dev); |
|
2719 int rc; |
|
2720 |
|
2721 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2722 |
|
2723 if (dev == rtl_ec_net_dev || !netif_running(dev)) |
|
2724 return -EINVAL; |
|
2725 |
|
2726 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2727 |
|
2728 spin_lock_irq(&np->lock); |
|
2729 rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL); |
|
2730 spin_unlock_irq(&np->lock); |
|
2731 |
|
2732 return rc; |
|
2733 } |
|
2734 |
|
2735 |
|
2736 static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) |
|
2737 { |
|
2738 struct rtl8139_private *tp = netdev_priv(dev); |
|
2739 void __iomem *ioaddr = tp->mmio_addr; |
|
2740 unsigned long flags; |
|
2741 |
|
2742 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2743 |
|
2744 if (dev == rtl_ec_net_dev || netif_running(dev)) { |
|
2745 spin_lock_irqsave (&tp->lock, flags); |
|
2746 tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2747 RTL_W32 (RxMissed, 0); |
|
2748 spin_unlock_irqrestore (&tp->lock, flags); |
|
2749 } |
|
2750 |
|
2751 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2752 |
|
2753 return &tp->stats; |
|
2754 } |
|
2755 |
|
2756 /* Set or clear the multicast filter for this adaptor. |
|
2757 This routine is not state sensitive and need not be SMP locked. */ |
|
2758 |
|
2759 static void __set_rx_mode (struct net_device *dev) |
|
2760 { |
|
2761 struct rtl8139_private *tp = netdev_priv(dev); |
|
2762 void __iomem *ioaddr = tp->mmio_addr; |
|
2763 u32 mc_filter[2]; /* Multicast hash filter */ |
|
2764 int i, rx_mode; |
|
2765 u32 tmp; |
|
2766 |
|
2767 DPRINTK ("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n", |
|
2768 dev->name, dev->flags, RTL_R32 (RxConfig)); |
|
2769 |
|
2770 /* Note: do not reorder, GCC is clever about common statements. */ |
|
2771 if (dev->flags & IFF_PROMISC) { |
|
2772 /* Unconditionally log net taps. */ |
|
2773 printk (KERN_NOTICE "%s: Promiscuous mode enabled.\n", |
|
2774 dev->name); |
|
2775 rx_mode = |
|
2776 AcceptBroadcast | AcceptMulticast | AcceptMyPhys | |
|
2777 AcceptAllPhys; |
|
2778 mc_filter[1] = mc_filter[0] = 0xffffffff; |
|
2779 } else if ((dev->mc_count > multicast_filter_limit) |
|
2780 || (dev->flags & IFF_ALLMULTI)) { |
|
2781 /* Too many to filter perfectly -- accept all multicasts. */ |
|
2782 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; |
|
2783 mc_filter[1] = mc_filter[0] = 0xffffffff; |
|
2784 } else { |
|
2785 struct dev_mc_list *mclist; |
|
2786 rx_mode = AcceptBroadcast | AcceptMyPhys; |
|
2787 mc_filter[1] = mc_filter[0] = 0; |
|
2788 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; |
|
2789 i++, mclist = mclist->next) { |
|
2790 int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; |
|
2791 |
|
2792 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); |
|
2793 rx_mode |= AcceptMulticast; |
|
2794 } |
|
2795 } |
|
2796 |
|
2797 /* We can safely update without stopping the chip. */ |
|
2798 tmp = rtl8139_rx_config | rx_mode; |
|
2799 if (tp->rx_config != tmp) { |
|
2800 RTL_W32_F (RxConfig, tmp); |
|
2801 tp->rx_config = tmp; |
|
2802 } |
|
2803 RTL_W32_F (MAR0 + 0, mc_filter[0]); |
|
2804 RTL_W32_F (MAR0 + 4, mc_filter[1]); |
|
2805 } |
|
2806 |
|
2807 static void rtl8139_set_rx_mode (struct net_device *dev) |
|
2808 { |
|
2809 unsigned long flags; |
|
2810 struct rtl8139_private *tp = netdev_priv(dev); |
|
2811 |
|
2812 spin_lock_irqsave (&tp->lock, flags); |
|
2813 __set_rx_mode(dev); |
|
2814 spin_unlock_irqrestore (&tp->lock, flags); |
|
2815 } |
|
2816 |
|
2817 #ifdef CONFIG_PM |
|
2818 |
|
2819 static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) |
|
2820 { |
|
2821 struct net_device *dev = pci_get_drvdata (pdev); |
|
2822 struct rtl8139_private *tp = netdev_priv(dev); |
|
2823 void __iomem *ioaddr = tp->mmio_addr; |
|
2824 unsigned long flags; |
|
2825 |
|
2826 pci_save_state (pdev); |
|
2827 |
|
2828 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2829 |
|
2830 if (dev == rtl_ec_net_dev || !netif_running (dev)) |
|
2831 return 0; |
|
2832 |
|
2833 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2834 |
|
2835 netif_device_detach (dev); |
|
2836 |
|
2837 spin_lock_irqsave (&tp->lock, flags); |
|
2838 |
|
2839 /* Disable interrupts, stop Tx and Rx. */ |
|
2840 RTL_W16 (IntrMask, 0); |
|
2841 RTL_W8 (ChipCmd, 0); |
|
2842 |
|
2843 /* Update the error counts. */ |
|
2844 tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2845 RTL_W32 (RxMissed, 0); |
|
2846 |
|
2847 spin_unlock_irqrestore (&tp->lock, flags); |
|
2848 |
|
2849 pci_set_power_state (pdev, PCI_D3hot); |
|
2850 |
|
2851 return 0; |
|
2852 } |
|
2853 |
|
2854 |
|
2855 static int rtl8139_resume (struct pci_dev *pdev) |
|
2856 { |
|
2857 struct net_device *dev = pci_get_drvdata (pdev); |
|
2858 |
|
2859 pci_restore_state (pdev); |
|
2860 |
|
2861 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2862 |
|
2863 if (dev == rtl_ec_net_dev || !netif_running (dev)) |
|
2864 return 0; |
|
2865 |
|
2866 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2867 |
|
2868 pci_set_power_state (pdev, PCI_D0); |
|
2869 rtl8139_init_ring (dev); |
|
2870 rtl8139_hw_start (dev); |
|
2871 netif_device_attach (dev); |
|
2872 return 0; |
|
2873 } |
|
2874 |
|
2875 #endif /* CONFIG_PM */ |
|
2876 |
|
2877 |
|
2878 static struct pci_driver rtl8139_pci_driver = { |
|
2879 .name = DRV_NAME, |
|
2880 .id_table = rtl8139_pci_tbl, |
|
2881 .probe = rtl8139_init_one, |
|
2882 .remove = __devexit_p(rtl8139_remove_one), |
|
2883 #ifdef CONFIG_PM |
|
2884 .suspend = rtl8139_suspend, |
|
2885 .resume = rtl8139_resume, |
|
2886 #endif /* CONFIG_PM */ |
|
2887 }; |
|
2888 |
|
2889 |
|
2890 static int __init rtl8139_init_module (void) |
|
2891 { |
|
2892 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2893 |
|
2894 printk(KERN_INFO RTL8139_DRIVER_NAME "\n"); |
|
2895 printk(KERN_INFO "ec_device_index is %i\n", ec_device_index); |
|
2896 |
|
2897 if (pci_module_init(&rtl8139_pci_driver) < 0) { |
|
2898 printk(KERN_ERR "Failed to init PCI module.\n"); |
|
2899 goto out_return; |
|
2900 } |
|
2901 |
|
2902 if (rtl_ec_net_dev) { |
|
2903 printk(KERN_INFO "Registering EtherCAT device...\n"); |
|
2904 if (!(rtl_ec_dev = ecdev_register(ec_device_master_index, |
|
2905 rtl_ec_net_dev, rtl8139_interrupt, THIS_MODULE))) { |
|
2906 printk(KERN_ERR "Failed to register EtherCAT device!\n"); |
|
2907 goto out_pci; |
|
2908 } |
|
2909 |
|
2910 printk(KERN_INFO "Starting EtherCAT device...\n"); |
|
2911 if (ecdev_start(ec_device_master_index)) { |
|
2912 printk(KERN_ERR "Failed to start EtherCAT device!\n"); |
|
2913 goto out_unregister; |
|
2914 } |
|
2915 } else { |
|
2916 printk(KERN_WARNING "No EtherCAT device registered!\n"); |
|
2917 } |
|
2918 |
|
2919 return 0; |
|
2920 |
|
2921 out_unregister: |
|
2922 ecdev_unregister(ec_device_master_index, rtl_ec_dev); |
|
2923 out_pci: |
|
2924 pci_unregister_driver(&rtl8139_pci_driver); |
|
2925 out_return: |
|
2926 return -1; |
|
2927 |
|
2928 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2929 } |
|
2930 |
|
2931 |
|
2932 static void __exit rtl8139_cleanup_module (void) |
|
2933 { |
|
2934 /* EtherCAT >>>>>>>>>>>>>>>>>>>>>>>>>>>>*/ |
|
2935 |
|
2936 printk(KERN_INFO "Cleaning up RTL8139-EtherCAT module...\n"); |
|
2937 |
|
2938 if (rtl_ec_net_dev) { |
|
2939 printk(KERN_INFO "Stopping device...\n"); |
|
2940 ecdev_stop(ec_device_master_index); |
|
2941 printk(KERN_INFO "Unregistering device...\n"); |
|
2942 ecdev_unregister(ec_device_master_index, rtl_ec_dev); |
|
2943 rtl_ec_dev = NULL; |
|
2944 } |
|
2945 |
|
2946 pci_unregister_driver(&rtl8139_pci_driver); |
|
2947 |
|
2948 printk(KERN_INFO "RTL8139-EtherCAT module cleaned up.\n"); |
|
2949 |
|
2950 /* EtherCAT <<<<<<<<<<<<<<<<<<<<<<<<<<<<*/ |
|
2951 } |
|
2952 |
|
2953 |
|
2954 module_init(rtl8139_init_module); |
|
2955 module_exit(rtl8139_cleanup_module); |