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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) 2006-2009 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 and/or |
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10 * modify it under the terms of the GNU General Public License version 2, as |
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11 * published by the Free Software Foundation. |
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12 * |
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13 * The IgH EtherCAT Master is distributed in the hope that it will be useful, |
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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16 * Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU General Public License along |
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19 * with the IgH EtherCAT Master; if not, write to the Free Software |
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20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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21 * |
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22 * --- |
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23 * |
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24 * The license mentioned above concerns the source code only. Using the |
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25 * EtherCAT technology and brand is only permitted in compliance with the |
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26 * industrial property and similar rights of Beckhoff Automation GmbH. |
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27 * |
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28 *****************************************************************************/ |
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29 |
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30 /** |
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31 \file |
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32 EtherCAT driver for RTL8139-compatible NICs. |
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33 */ |
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34 |
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35 /*****************************************************************************/ |
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36 |
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37 /* |
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38 Former documentation: |
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39 |
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40 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux. |
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41 |
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42 Maintained by Jeff Garzik <jgarzik@pobox.com> |
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43 Copyright 2000-2002 Jeff Garzik |
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44 |
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45 Much code comes from Donald Becker's rtl8139.c driver, |
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46 versions 1.13 and older. This driver was originally based |
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47 on rtl8139.c version 1.07. Header of rtl8139.c version 1.13: |
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48 |
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49 -----<snip>----- |
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50 |
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51 Written 1997-2001 by Donald Becker. |
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52 This software may be used and distributed according to the |
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53 terms of the GNU General Public License (GPL), incorporated |
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54 herein by reference. Drivers based on or derived from this |
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55 code fall under the GPL and must retain the authorship, |
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56 copyright and license notice. This file is not a complete |
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57 program and may only be used when the entire operating |
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58 system is licensed under the GPL. |
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59 |
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60 This driver is for boards based on the RTL8129 and RTL8139 |
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61 PCI ethernet chips. |
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62 |
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63 The author may be reached as becker@scyld.com, or C/O Scyld |
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64 Computing Corporation 410 Severn Ave., Suite 210 Annapolis |
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65 MD 21403 |
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66 |
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67 Support and updates available at |
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68 http://www.scyld.com/network/rtl8139.html |
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69 |
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70 Twister-tuning table provided by Kinston |
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71 <shangh@realtek.com.tw>. |
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72 |
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73 -----<snip>----- |
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74 |
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75 This software may be used and distributed according to the terms |
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76 of the GNU General Public License, incorporated herein by reference. |
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77 |
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78 Contributors: |
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79 |
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80 Donald Becker - he wrote the original driver, kudos to him! |
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81 (but please don't e-mail him for support, this isn't his driver) |
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82 |
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83 Tigran Aivazian - bug fixes, skbuff free cleanup |
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84 |
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85 Martin Mares - suggestions for PCI cleanup |
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86 |
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87 David S. Miller - PCI DMA and softnet updates |
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88 |
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89 Ernst Gill - fixes ported from BSD driver |
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90 |
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91 Daniel Kobras - identified specific locations of |
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92 posted MMIO write bugginess |
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93 |
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94 Gerard Sharp - bug fix, testing and feedback |
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95 |
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96 David Ford - Rx ring wrap fix |
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97 |
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98 Dan DeMaggio - swapped RTL8139 cards with me, and allowed me |
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99 to find and fix a crucial bug on older chipsets. |
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100 |
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101 Donald Becker/Chris Butterworth/Marcus Westergren - |
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102 Noticed various Rx packet size-related buglets. |
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103 |
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104 Santiago Garcia Mantinan - testing and feedback |
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105 |
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106 Jens David - 2.2.x kernel backports |
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107 |
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108 Martin Dennett - incredibly helpful insight on undocumented |
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109 features of the 8139 chips |
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110 |
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111 Jean-Jacques Michel - bug fix |
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112 |
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113 Tobias Ringström - Rx interrupt status checking suggestion |
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114 |
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115 Andrew Morton - Clear blocked signals, avoid |
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116 buffer overrun setting current->comm. |
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117 |
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118 Kalle Olavi Niemitalo - Wake-on-LAN ioctls |
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119 |
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120 Robert Kuebel - Save kernel thread from dying on any signal. |
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121 |
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122 Submitting bug reports: |
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123 |
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124 "rtl8139-diag -mmmaaavvveefN" output |
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125 enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log |
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126 |
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127 */ |
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128 |
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129 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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130 |
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131 #define DRV_NAME "ec_8139too" |
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132 #define DRV_VERSION "0.9.28" |
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133 |
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134 |
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135 #include <linux/module.h> |
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136 #include <linux/kernel.h> |
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137 #include <linux/compiler.h> |
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138 #include <linux/pci.h> |
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139 #include <linux/init.h> |
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140 #include <linux/interrupt.h> |
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141 #include <linux/netdevice.h> |
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142 #include <linux/etherdevice.h> |
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143 #include <linux/rtnetlink.h> |
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144 #include <linux/delay.h> |
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145 #include <linux/ethtool.h> |
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146 #include <linux/mii.h> |
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147 #include <linux/completion.h> |
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148 #include <linux/crc32.h> |
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149 #include <linux/io.h> |
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150 #include <linux/uaccess.h> |
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151 #include <linux/gfp.h> |
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152 #include <asm/irq.h> |
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153 |
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154 #include "../globals.h" |
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155 #include "ecdev.h" |
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156 |
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157 #define RTL8139_DRIVER_NAME DRV_NAME \ |
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158 " EtherCAT-capable Fast Ethernet driver " \ |
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159 DRV_VERSION ", master " EC_MASTER_VERSION |
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160 |
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161 #define PFX DRV_NAME ": " |
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162 |
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163 /* Default Message level */ |
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164 #define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ |
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165 NETIF_MSG_PROBE | \ |
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166 NETIF_MSG_LINK) |
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167 |
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168 |
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169 /* define to 1, 2 or 3 to enable copious debugging info */ |
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170 #define RTL8139_DEBUG 0 |
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171 |
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172 /* define to 1 to disable lightweight runtime debugging checks */ |
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173 #undef RTL8139_NDEBUG |
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174 |
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175 |
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176 #ifdef RTL8139_NDEBUG |
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177 # define assert(expr) do {} while (0) |
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178 #else |
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179 # define assert(expr) \ |
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180 if (unlikely(!(expr))) { \ |
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181 pr_err("Assertion failed! %s,%s,%s,line=%d\n", \ |
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182 #expr, __FILE__, __func__, __LINE__); \ |
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183 } |
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184 #endif |
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185 |
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186 |
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187 /* A few user-configurable values. */ |
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188 /* media options */ |
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189 #define MAX_UNITS 8 |
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190 static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
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191 static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
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192 |
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193 /* Whether to use MMIO or PIO. Default to MMIO. */ |
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194 #ifdef CONFIG_8139TOO_PIO |
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195 static int use_io = 1; |
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196 #else |
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197 static int use_io = 0; |
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198 #endif |
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199 |
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200 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
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201 The RTL chips use a 64 element hash table based on the Ethernet CRC. */ |
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202 static int multicast_filter_limit = 32; |
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203 |
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204 /* bitmapped message enable number */ |
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205 static int debug = -1; |
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206 |
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207 /* |
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208 * Receive ring size |
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209 * Warning: 64K ring has hardware issues and may lock up. |
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210 */ |
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211 #if defined(CONFIG_SH_DREAMCAST) |
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212 #define RX_BUF_IDX 0 /* 8K ring */ |
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213 #else |
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214 #define RX_BUF_IDX 2 /* 32K ring */ |
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215 #endif |
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216 #define RX_BUF_LEN (8192 << RX_BUF_IDX) |
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217 #define RX_BUF_PAD 16 |
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218 #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ |
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219 |
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220 #if RX_BUF_LEN == 65536 |
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221 #define RX_BUF_TOT_LEN RX_BUF_LEN |
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222 #else |
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223 #define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) |
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224 #endif |
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225 |
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226 /* Number of Tx descriptor registers. */ |
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227 #define NUM_TX_DESC 4 |
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228 |
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229 /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ |
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230 #define MAX_ETH_FRAME_SIZE 1536 |
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231 |
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232 /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ |
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233 #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE |
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234 #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) |
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235 |
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236 /* PCI Tuning Parameters |
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237 Threshold is bytes transferred to chip before transmission starts. */ |
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238 #define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ |
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239 |
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240 /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ |
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241 #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ |
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242 #define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ |
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243 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ |
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244 #define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ |
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245 |
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246 /* Operational parameters that usually are not changed. */ |
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247 /* Time in jiffies before concluding the transmitter is hung. */ |
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248 #define TX_TIMEOUT (6*HZ) |
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249 |
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250 |
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251 enum { |
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252 HAS_MII_XCVR = 0x010000, |
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253 HAS_CHIP_XCVR = 0x020000, |
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254 HAS_LNK_CHNG = 0x040000, |
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255 }; |
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256 |
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257 #define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ |
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258 #define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ |
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259 #define RTL_MIN_IO_SIZE 0x80 |
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260 #define RTL8139B_IO_SIZE 256 |
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261 |
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262 #define RTL8129_CAPS HAS_MII_XCVR |
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263 #define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG) |
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264 |
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265 typedef enum { |
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266 RTL8139 = 0, |
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267 RTL8129, |
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268 } board_t; |
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269 |
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270 |
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271 /* indexed by board_t, above */ |
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272 static const struct { |
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273 const char *name; |
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274 u32 hw_flags; |
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275 } board_info[] __devinitdata = { |
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276 { "RealTek RTL8139", RTL8139_CAPS }, |
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277 { "RealTek RTL8129", RTL8129_CAPS }, |
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278 }; |
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279 |
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280 |
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281 static DEFINE_PCI_DEVICE_TABLE(rtl8139_pci_tbl) = { |
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282 {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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283 {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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284 {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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285 {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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286 {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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287 {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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288 {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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289 {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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290 {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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291 {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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292 {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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293 {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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294 {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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295 {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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296 {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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297 {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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298 {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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299 {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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300 {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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301 |
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302 #ifdef CONFIG_SH_SECUREEDGE5410 |
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303 /* Bogus 8139 silicon reports 8129 without external PROM :-( */ |
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304 {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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305 #endif |
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306 #ifdef CONFIG_8139TOO_8129 |
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307 {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, |
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308 #endif |
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309 |
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310 /* some crazy cards report invalid vendor ids like |
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311 * 0x0001 here. The other ids are valid and constant, |
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312 * so we simply don't match on the main vendor id. |
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313 */ |
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314 {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, |
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315 {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, |
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316 {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, |
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317 |
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318 {0,} |
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319 }; |
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320 |
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321 /* prevent driver from being loaded automatically */ |
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322 //MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); |
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323 |
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324 static struct { |
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325 const char str[ETH_GSTRING_LEN]; |
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326 } ethtool_stats_keys[] = { |
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327 { "early_rx" }, |
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328 { "tx_buf_mapped" }, |
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329 { "tx_timeouts" }, |
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330 { "rx_lost_in_ring" }, |
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331 }; |
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332 |
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333 /* The rest of these values should never change. */ |
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334 |
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335 /* Symbolic offsets to registers. */ |
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336 enum RTL8139_registers { |
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337 MAC0 = 0, /* Ethernet hardware address. */ |
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338 MAR0 = 8, /* Multicast filter. */ |
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339 TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ |
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340 TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ |
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341 RxBuf = 0x30, |
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342 ChipCmd = 0x37, |
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343 RxBufPtr = 0x38, |
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344 RxBufAddr = 0x3A, |
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345 IntrMask = 0x3C, |
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346 IntrStatus = 0x3E, |
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347 TxConfig = 0x40, |
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348 RxConfig = 0x44, |
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349 Timer = 0x48, /* A general-purpose counter. */ |
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350 RxMissed = 0x4C, /* 24 bits valid, write clears. */ |
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351 Cfg9346 = 0x50, |
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352 Config0 = 0x51, |
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353 Config1 = 0x52, |
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354 TimerInt = 0x54, |
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355 MediaStatus = 0x58, |
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356 Config3 = 0x59, |
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357 Config4 = 0x5A, /* absent on RTL-8139A */ |
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358 HltClk = 0x5B, |
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359 MultiIntr = 0x5C, |
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360 TxSummary = 0x60, |
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361 BasicModeCtrl = 0x62, |
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362 BasicModeStatus = 0x64, |
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363 NWayAdvert = 0x66, |
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364 NWayLPAR = 0x68, |
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365 NWayExpansion = 0x6A, |
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366 /* Undocumented registers, but required for proper operation. */ |
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367 FIFOTMS = 0x70, /* FIFO Control and test. */ |
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368 CSCR = 0x74, /* Chip Status and Configuration Register. */ |
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369 PARA78 = 0x78, |
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370 FlashReg = 0xD4, /* Communication with Flash ROM, four bytes. */ |
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371 PARA7c = 0x7c, /* Magic transceiver parameter register. */ |
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372 Config5 = 0xD8, /* absent on RTL-8139A */ |
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373 }; |
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374 |
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375 enum ClearBitMasks { |
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376 MultiIntrClear = 0xF000, |
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377 ChipCmdClear = 0xE2, |
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378 Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), |
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379 }; |
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380 |
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381 enum ChipCmdBits { |
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382 CmdReset = 0x10, |
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383 CmdRxEnb = 0x08, |
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384 CmdTxEnb = 0x04, |
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385 RxBufEmpty = 0x01, |
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386 }; |
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387 |
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388 /* Interrupt register bits, using my own meaningful names. */ |
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389 enum IntrStatusBits { |
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390 PCIErr = 0x8000, |
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391 PCSTimeout = 0x4000, |
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392 RxFIFOOver = 0x40, |
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393 RxUnderrun = 0x20, |
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394 RxOverflow = 0x10, |
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395 TxErr = 0x08, |
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396 TxOK = 0x04, |
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397 RxErr = 0x02, |
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398 RxOK = 0x01, |
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399 |
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400 RxAckBits = RxFIFOOver | RxOverflow | RxOK, |
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401 }; |
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402 |
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403 enum TxStatusBits { |
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404 TxHostOwns = 0x2000, |
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405 TxUnderrun = 0x4000, |
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406 TxStatOK = 0x8000, |
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407 TxOutOfWindow = 0x20000000, |
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408 TxAborted = 0x40000000, |
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409 TxCarrierLost = 0x80000000, |
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410 }; |
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411 enum RxStatusBits { |
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412 RxMulticast = 0x8000, |
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413 RxPhysical = 0x4000, |
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414 RxBroadcast = 0x2000, |
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415 RxBadSymbol = 0x0020, |
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416 RxRunt = 0x0010, |
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417 RxTooLong = 0x0008, |
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418 RxCRCErr = 0x0004, |
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419 RxBadAlign = 0x0002, |
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420 RxStatusOK = 0x0001, |
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421 }; |
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422 |
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423 /* Bits in RxConfig. */ |
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424 enum rx_mode_bits { |
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425 AcceptErr = 0x20, |
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426 AcceptRunt = 0x10, |
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427 AcceptBroadcast = 0x08, |
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428 AcceptMulticast = 0x04, |
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429 AcceptMyPhys = 0x02, |
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430 AcceptAllPhys = 0x01, |
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431 }; |
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432 |
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433 /* Bits in TxConfig. */ |
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434 enum tx_config_bits { |
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435 /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ |
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436 TxIFGShift = 24, |
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437 TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */ |
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438 TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */ |
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439 TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */ |
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440 TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */ |
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441 |
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442 TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ |
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443 TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */ |
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444 TxClearAbt = (1 << 0), /* Clear abort (WO) */ |
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445 TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */ |
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446 TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */ |
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447 |
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448 TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ |
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449 }; |
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450 |
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451 /* Bits in Config1 */ |
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452 enum Config1Bits { |
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453 Cfg1_PM_Enable = 0x01, |
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454 Cfg1_VPD_Enable = 0x02, |
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455 Cfg1_PIO = 0x04, |
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456 Cfg1_MMIO = 0x08, |
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457 LWAKE = 0x10, /* not on 8139, 8139A */ |
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458 Cfg1_Driver_Load = 0x20, |
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459 Cfg1_LED0 = 0x40, |
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460 Cfg1_LED1 = 0x80, |
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461 SLEEP = (1 << 1), /* only on 8139, 8139A */ |
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462 PWRDN = (1 << 0), /* only on 8139, 8139A */ |
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463 }; |
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464 |
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465 /* Bits in Config3 */ |
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466 enum Config3Bits { |
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467 Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */ |
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468 Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */ |
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469 Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */ |
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470 Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */ |
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471 Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */ |
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472 Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */ |
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473 Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */ |
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474 Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */ |
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475 }; |
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476 |
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477 /* Bits in Config4 */ |
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478 enum Config4Bits { |
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479 LWPTN = (1 << 2), /* not on 8139, 8139A */ |
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480 }; |
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481 |
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482 /* Bits in Config5 */ |
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483 enum Config5Bits { |
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484 Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */ |
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485 Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */ |
|
486 Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */ |
|
487 Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */ |
|
488 Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */ |
|
489 Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */ |
|
490 Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */ |
|
491 }; |
|
492 |
|
493 enum RxConfigBits { |
|
494 /* rx fifo threshold */ |
|
495 RxCfgFIFOShift = 13, |
|
496 RxCfgFIFONone = (7 << RxCfgFIFOShift), |
|
497 |
|
498 /* Max DMA burst */ |
|
499 RxCfgDMAShift = 8, |
|
500 RxCfgDMAUnlimited = (7 << RxCfgDMAShift), |
|
501 |
|
502 /* rx ring buffer length */ |
|
503 RxCfgRcv8K = 0, |
|
504 RxCfgRcv16K = (1 << 11), |
|
505 RxCfgRcv32K = (1 << 12), |
|
506 RxCfgRcv64K = (1 << 11) | (1 << 12), |
|
507 |
|
508 /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ |
|
509 RxNoWrap = (1 << 7), |
|
510 }; |
|
511 |
|
512 /* Twister tuning parameters from RealTek. |
|
513 Completely undocumented, but required to tune bad links on some boards. */ |
|
514 enum CSCRBits { |
|
515 CSCR_LinkOKBit = 0x0400, |
|
516 CSCR_LinkChangeBit = 0x0800, |
|
517 CSCR_LinkStatusBits = 0x0f000, |
|
518 CSCR_LinkDownOffCmd = 0x003c0, |
|
519 CSCR_LinkDownCmd = 0x0f3c0, |
|
520 }; |
|
521 |
|
522 enum Cfg9346Bits { |
|
523 Cfg9346_Lock = 0x00, |
|
524 Cfg9346_Unlock = 0xC0, |
|
525 }; |
|
526 |
|
527 typedef enum { |
|
528 CH_8139 = 0, |
|
529 CH_8139_K, |
|
530 CH_8139A, |
|
531 CH_8139A_G, |
|
532 CH_8139B, |
|
533 CH_8130, |
|
534 CH_8139C, |
|
535 CH_8100, |
|
536 CH_8100B_8139D, |
|
537 CH_8101, |
|
538 } chip_t; |
|
539 |
|
540 enum chip_flags { |
|
541 HasHltClk = (1 << 0), |
|
542 HasLWake = (1 << 1), |
|
543 }; |
|
544 |
|
545 #define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \ |
|
546 (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22) |
|
547 #define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1) |
|
548 |
|
549 /* directly indexed by chip_t, above */ |
|
550 static const struct { |
|
551 const char *name; |
|
552 u32 version; /* from RTL8139C/RTL8139D docs */ |
|
553 u32 flags; |
|
554 } rtl_chip_info[] = { |
|
555 { "RTL-8139", |
|
556 HW_REVID(1, 0, 0, 0, 0, 0, 0), |
|
557 HasHltClk, |
|
558 }, |
|
559 |
|
560 { "RTL-8139 rev K", |
|
561 HW_REVID(1, 1, 0, 0, 0, 0, 0), |
|
562 HasHltClk, |
|
563 }, |
|
564 |
|
565 { "RTL-8139A", |
|
566 HW_REVID(1, 1, 1, 0, 0, 0, 0), |
|
567 HasHltClk, /* XXX undocumented? */ |
|
568 }, |
|
569 |
|
570 { "RTL-8139A rev G", |
|
571 HW_REVID(1, 1, 1, 0, 0, 1, 0), |
|
572 HasHltClk, /* XXX undocumented? */ |
|
573 }, |
|
574 |
|
575 { "RTL-8139B", |
|
576 HW_REVID(1, 1, 1, 1, 0, 0, 0), |
|
577 HasLWake, |
|
578 }, |
|
579 |
|
580 { "RTL-8130", |
|
581 HW_REVID(1, 1, 1, 1, 1, 0, 0), |
|
582 HasLWake, |
|
583 }, |
|
584 |
|
585 { "RTL-8139C", |
|
586 HW_REVID(1, 1, 1, 0, 1, 0, 0), |
|
587 HasLWake, |
|
588 }, |
|
589 |
|
590 { "RTL-8100", |
|
591 HW_REVID(1, 1, 1, 1, 0, 1, 0), |
|
592 HasLWake, |
|
593 }, |
|
594 |
|
595 { "RTL-8100B/8139D", |
|
596 HW_REVID(1, 1, 1, 0, 1, 0, 1), |
|
597 HasHltClk /* XXX undocumented? */ |
|
598 | HasLWake, |
|
599 }, |
|
600 |
|
601 { "RTL-8101", |
|
602 HW_REVID(1, 1, 1, 0, 1, 1, 1), |
|
603 HasLWake, |
|
604 }, |
|
605 }; |
|
606 |
|
607 struct rtl_extra_stats { |
|
608 unsigned long early_rx; |
|
609 unsigned long tx_buf_mapped; |
|
610 unsigned long tx_timeouts; |
|
611 unsigned long rx_lost_in_ring; |
|
612 }; |
|
613 |
|
614 struct rtl8139_stats { |
|
615 u64 packets; |
|
616 u64 bytes; |
|
617 struct u64_stats_sync syncp; |
|
618 }; |
|
619 |
|
620 struct rtl8139_private { |
|
621 void __iomem *mmio_addr; |
|
622 int drv_flags; |
|
623 struct pci_dev *pci_dev; |
|
624 u32 msg_enable; |
|
625 struct napi_struct napi; |
|
626 struct net_device *dev; |
|
627 |
|
628 unsigned char *rx_ring; |
|
629 unsigned int cur_rx; /* RX buf index of next pkt */ |
|
630 struct rtl8139_stats rx_stats; |
|
631 dma_addr_t rx_ring_dma; |
|
632 |
|
633 unsigned int tx_flag; |
|
634 unsigned long cur_tx; |
|
635 unsigned long dirty_tx; |
|
636 struct rtl8139_stats tx_stats; |
|
637 unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ |
|
638 unsigned char *tx_bufs; /* Tx bounce buffer region. */ |
|
639 dma_addr_t tx_bufs_dma; |
|
640 |
|
641 signed char phys[4]; /* MII device addresses. */ |
|
642 |
|
643 /* Twister tune state. */ |
|
644 char twistie, twist_row, twist_col; |
|
645 |
|
646 unsigned int watchdog_fired : 1; |
|
647 unsigned int default_port : 4; /* Last dev->if_port value. */ |
|
648 unsigned int have_thread : 1; |
|
649 |
|
650 spinlock_t lock; |
|
651 spinlock_t rx_lock; |
|
652 |
|
653 chip_t chipset; |
|
654 u32 rx_config; |
|
655 struct rtl_extra_stats xstats; |
|
656 |
|
657 struct delayed_work thread; |
|
658 |
|
659 struct mii_if_info mii; |
|
660 unsigned int regs_len; |
|
661 unsigned long fifo_copy_timeout; |
|
662 |
|
663 ec_device_t *ecdev; |
|
664 }; |
|
665 |
|
666 MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>"); |
|
667 MODULE_DESCRIPTION("RealTek RTL-8139 EtherCAT driver"); |
|
668 MODULE_LICENSE("GPL"); |
|
669 MODULE_VERSION(EC_MASTER_VERSION); |
|
670 |
|
671 module_param(use_io, int, 0); |
|
672 MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO"); |
|
673 module_param(multicast_filter_limit, int, 0); |
|
674 module_param_array(media, int, NULL, 0); |
|
675 module_param_array(full_duplex, int, NULL, 0); |
|
676 module_param(debug, int, 0); |
|
677 MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); |
|
678 MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); |
|
679 MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); |
|
680 MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); |
|
681 |
|
682 void ec_poll(struct net_device *); |
|
683 |
|
684 static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); |
|
685 static int rtl8139_open (struct net_device *dev); |
|
686 static int mdio_read (struct net_device *dev, int phy_id, int location); |
|
687 static void mdio_write (struct net_device *dev, int phy_id, int location, |
|
688 int val); |
|
689 static void rtl8139_start_thread(struct rtl8139_private *tp); |
|
690 static void rtl8139_tx_timeout (struct net_device *dev); |
|
691 static void rtl8139_init_ring (struct net_device *dev); |
|
692 static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb, |
|
693 struct net_device *dev); |
|
694 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
695 static void rtl8139_poll_controller(struct net_device *dev); |
|
696 #endif |
|
697 static int rtl8139_set_mac_address(struct net_device *dev, void *p); |
|
698 static int rtl8139_poll(struct napi_struct *napi, int budget); |
|
699 static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance); |
|
700 static int rtl8139_close (struct net_device *dev); |
|
701 static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); |
|
702 static struct rtnl_link_stats64 *rtl8139_get_stats64(struct net_device *dev, |
|
703 struct rtnl_link_stats64 |
|
704 *stats); |
|
705 static void rtl8139_set_rx_mode (struct net_device *dev); |
|
706 static void __set_rx_mode (struct net_device *dev); |
|
707 static void rtl8139_hw_start (struct net_device *dev); |
|
708 static void rtl8139_thread (struct work_struct *work); |
|
709 static void rtl8139_tx_timeout_task(struct work_struct *work); |
|
710 static const struct ethtool_ops rtl8139_ethtool_ops; |
|
711 |
|
712 /* write MMIO register, with flush */ |
|
713 /* Flush avoids rtl8139 bug w/ posted MMIO writes */ |
|
714 #define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) |
|
715 #define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) |
|
716 #define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0) |
|
717 |
|
718 /* write MMIO register */ |
|
719 #define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) |
|
720 #define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) |
|
721 #define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) |
|
722 |
|
723 /* read MMIO register */ |
|
724 #define RTL_R8(reg) ioread8 (ioaddr + (reg)) |
|
725 #define RTL_R16(reg) ioread16 (ioaddr + (reg)) |
|
726 #define RTL_R32(reg) ioread32 (ioaddr + (reg)) |
|
727 |
|
728 |
|
729 static const u16 rtl8139_intr_mask = |
|
730 PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | |
|
731 TxErr | TxOK | RxErr | RxOK; |
|
732 |
|
733 static const u16 rtl8139_norx_intr_mask = |
|
734 PCIErr | PCSTimeout | RxUnderrun | |
|
735 TxErr | TxOK | RxErr ; |
|
736 |
|
737 #if RX_BUF_IDX == 0 |
|
738 static const unsigned int rtl8139_rx_config = |
|
739 RxCfgRcv8K | RxNoWrap | |
|
740 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
741 (RX_DMA_BURST << RxCfgDMAShift); |
|
742 #elif RX_BUF_IDX == 1 |
|
743 static const unsigned int rtl8139_rx_config = |
|
744 RxCfgRcv16K | RxNoWrap | |
|
745 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
746 (RX_DMA_BURST << RxCfgDMAShift); |
|
747 #elif RX_BUF_IDX == 2 |
|
748 static const unsigned int rtl8139_rx_config = |
|
749 RxCfgRcv32K | RxNoWrap | |
|
750 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
751 (RX_DMA_BURST << RxCfgDMAShift); |
|
752 #elif RX_BUF_IDX == 3 |
|
753 static const unsigned int rtl8139_rx_config = |
|
754 RxCfgRcv64K | |
|
755 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
756 (RX_DMA_BURST << RxCfgDMAShift); |
|
757 #else |
|
758 #error "Invalid configuration for 8139_RXBUF_IDX" |
|
759 #endif |
|
760 |
|
761 static const unsigned int rtl8139_tx_config = |
|
762 TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); |
|
763 |
|
764 static void __rtl8139_cleanup_dev (struct net_device *dev) |
|
765 { |
|
766 struct rtl8139_private *tp = netdev_priv(dev); |
|
767 struct pci_dev *pdev; |
|
768 |
|
769 assert (dev != NULL); |
|
770 assert (tp->pci_dev != NULL); |
|
771 pdev = tp->pci_dev; |
|
772 |
|
773 if (tp->mmio_addr) |
|
774 pci_iounmap (pdev, tp->mmio_addr); |
|
775 |
|
776 /* it's ok to call this even if we have no regions to free */ |
|
777 pci_release_regions (pdev); |
|
778 |
|
779 free_netdev(dev); |
|
780 pci_set_drvdata (pdev, NULL); |
|
781 } |
|
782 |
|
783 |
|
784 static void rtl8139_chip_reset (void __iomem *ioaddr) |
|
785 { |
|
786 int i; |
|
787 |
|
788 /* Soft reset the chip. */ |
|
789 RTL_W8 (ChipCmd, CmdReset); |
|
790 |
|
791 /* Check that the chip has finished the reset. */ |
|
792 for (i = 1000; i > 0; i--) { |
|
793 barrier(); |
|
794 if ((RTL_R8 (ChipCmd) & CmdReset) == 0) |
|
795 break; |
|
796 udelay (10); |
|
797 } |
|
798 } |
|
799 |
|
800 |
|
801 static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev) |
|
802 { |
|
803 void __iomem *ioaddr; |
|
804 struct net_device *dev; |
|
805 struct rtl8139_private *tp; |
|
806 u8 tmp8; |
|
807 int rc, disable_dev_on_err = 0; |
|
808 unsigned int i; |
|
809 unsigned long pio_start, pio_end __attribute__ ((unused)), pio_flags, |
|
810 pio_len; |
|
811 unsigned long mmio_start __attribute__ ((unused)), |
|
812 mmio_end __attribute__ ((unused)), mmio_flags, mmio_len; |
|
813 u32 version; |
|
814 |
|
815 assert (pdev != NULL); |
|
816 |
|
817 /* dev and priv zeroed in alloc_etherdev */ |
|
818 dev = alloc_etherdev (sizeof (*tp)); |
|
819 if (dev == NULL) |
|
820 return ERR_PTR(-ENOMEM); |
|
821 |
|
822 SET_NETDEV_DEV(dev, &pdev->dev); |
|
823 |
|
824 tp = netdev_priv(dev); |
|
825 tp->pci_dev = pdev; |
|
826 |
|
827 /* enable device (incl. PCI PM wakeup and hotplug setup) */ |
|
828 rc = pci_enable_device (pdev); |
|
829 if (rc) |
|
830 goto err_out; |
|
831 |
|
832 pio_start = pci_resource_start (pdev, 0); |
|
833 pio_end = pci_resource_end (pdev, 0); |
|
834 pio_flags = pci_resource_flags (pdev, 0); |
|
835 pio_len = pci_resource_len (pdev, 0); |
|
836 |
|
837 mmio_start = pci_resource_start (pdev, 1); |
|
838 mmio_end = pci_resource_end (pdev, 1); |
|
839 mmio_flags = pci_resource_flags (pdev, 1); |
|
840 mmio_len = pci_resource_len (pdev, 1); |
|
841 |
|
842 /* set this immediately, we need to know before |
|
843 * we talk to the chip directly */ |
|
844 pr_debug("PIO region size == 0x%02lX\n", pio_len); |
|
845 pr_debug("MMIO region size == 0x%02lX\n", mmio_len); |
|
846 |
|
847 retry: |
|
848 if (use_io) { |
|
849 /* make sure PCI base addr 0 is PIO */ |
|
850 if (!(pio_flags & IORESOURCE_IO)) { |
|
851 dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n"); |
|
852 rc = -ENODEV; |
|
853 goto err_out; |
|
854 } |
|
855 /* check for weird/broken PCI region reporting */ |
|
856 if (pio_len < RTL_MIN_IO_SIZE) { |
|
857 dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n"); |
|
858 rc = -ENODEV; |
|
859 goto err_out; |
|
860 } |
|
861 } else { |
|
862 /* make sure PCI base addr 1 is MMIO */ |
|
863 if (!(mmio_flags & IORESOURCE_MEM)) { |
|
864 dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); |
|
865 rc = -ENODEV; |
|
866 goto err_out; |
|
867 } |
|
868 if (mmio_len < RTL_MIN_IO_SIZE) { |
|
869 dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n"); |
|
870 rc = -ENODEV; |
|
871 goto err_out; |
|
872 } |
|
873 } |
|
874 |
|
875 rc = pci_request_regions (pdev, DRV_NAME); |
|
876 if (rc) |
|
877 goto err_out; |
|
878 disable_dev_on_err = 1; |
|
879 |
|
880 /* enable PCI bus-mastering */ |
|
881 pci_set_master (pdev); |
|
882 |
|
883 if (use_io) { |
|
884 ioaddr = pci_iomap(pdev, 0, 0); |
|
885 if (!ioaddr) { |
|
886 dev_err(&pdev->dev, "cannot map PIO, aborting\n"); |
|
887 rc = -EIO; |
|
888 goto err_out; |
|
889 } |
|
890 dev->base_addr = pio_start; |
|
891 tp->regs_len = pio_len; |
|
892 } else { |
|
893 /* ioremap MMIO region */ |
|
894 ioaddr = pci_iomap(pdev, 1, 0); |
|
895 if (ioaddr == NULL) { |
|
896 dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n"); |
|
897 pci_release_regions(pdev); |
|
898 use_io = 1; |
|
899 goto retry; |
|
900 } |
|
901 dev->base_addr = (long) ioaddr; |
|
902 tp->regs_len = mmio_len; |
|
903 } |
|
904 tp->mmio_addr = ioaddr; |
|
905 |
|
906 /* Bring old chips out of low-power mode. */ |
|
907 RTL_W8 (HltClk, 'R'); |
|
908 |
|
909 /* check for missing/broken hardware */ |
|
910 if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { |
|
911 dev_err(&pdev->dev, "Chip not responding, ignoring board\n"); |
|
912 rc = -EIO; |
|
913 goto err_out; |
|
914 } |
|
915 |
|
916 /* identify chip attached to board */ |
|
917 version = RTL_R32 (TxConfig) & HW_REVID_MASK; |
|
918 for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) |
|
919 if (version == rtl_chip_info[i].version) { |
|
920 tp->chipset = i; |
|
921 goto match; |
|
922 } |
|
923 |
|
924 /* if unknown chip, assume array element #0, original RTL-8139 in this case */ |
|
925 i = 0; |
|
926 dev_dbg(&pdev->dev, "unknown chip version, assuming RTL-8139\n"); |
|
927 dev_dbg(&pdev->dev, "TxConfig = 0x%x\n", RTL_R32 (TxConfig)); |
|
928 tp->chipset = 0; |
|
929 |
|
930 match: |
|
931 pr_debug("chipset id (%d) == index %d, '%s'\n", |
|
932 version, i, rtl_chip_info[i].name); |
|
933 |
|
934 if (tp->chipset >= CH_8139B) { |
|
935 u8 new_tmp8 = tmp8 = RTL_R8 (Config1); |
|
936 pr_debug("PCI PM wakeup\n"); |
|
937 if ((rtl_chip_info[tp->chipset].flags & HasLWake) && |
|
938 (tmp8 & LWAKE)) |
|
939 new_tmp8 &= ~LWAKE; |
|
940 new_tmp8 |= Cfg1_PM_Enable; |
|
941 if (new_tmp8 != tmp8) { |
|
942 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
943 RTL_W8 (Config1, tmp8); |
|
944 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
945 } |
|
946 if (rtl_chip_info[tp->chipset].flags & HasLWake) { |
|
947 tmp8 = RTL_R8 (Config4); |
|
948 if (tmp8 & LWPTN) { |
|
949 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
950 RTL_W8 (Config4, tmp8 & ~LWPTN); |
|
951 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
952 } |
|
953 } |
|
954 } else { |
|
955 pr_debug("Old chip wakeup\n"); |
|
956 tmp8 = RTL_R8 (Config1); |
|
957 tmp8 &= ~(SLEEP | PWRDN); |
|
958 RTL_W8 (Config1, tmp8); |
|
959 } |
|
960 |
|
961 rtl8139_chip_reset (ioaddr); |
|
962 |
|
963 return dev; |
|
964 |
|
965 err_out: |
|
966 __rtl8139_cleanup_dev (dev); |
|
967 if (disable_dev_on_err) |
|
968 pci_disable_device (pdev); |
|
969 return ERR_PTR(rc); |
|
970 } |
|
971 |
|
972 static int rtl8139_set_features(struct net_device *dev, netdev_features_t features) |
|
973 { |
|
974 struct rtl8139_private *tp = netdev_priv(dev); |
|
975 unsigned long flags; |
|
976 netdev_features_t changed = features ^ dev->features; |
|
977 void __iomem *ioaddr = tp->mmio_addr; |
|
978 |
|
979 if (!(changed & (NETIF_F_RXALL))) |
|
980 return 0; |
|
981 |
|
982 spin_lock_irqsave(&tp->lock, flags); |
|
983 |
|
984 if (changed & NETIF_F_RXALL) { |
|
985 int rx_mode = tp->rx_config; |
|
986 if (features & NETIF_F_RXALL) |
|
987 rx_mode |= (AcceptErr | AcceptRunt); |
|
988 else |
|
989 rx_mode &= ~(AcceptErr | AcceptRunt); |
|
990 tp->rx_config = rtl8139_rx_config | rx_mode; |
|
991 RTL_W32_F(RxConfig, tp->rx_config); |
|
992 } |
|
993 |
|
994 spin_unlock_irqrestore(&tp->lock, flags); |
|
995 |
|
996 return 0; |
|
997 } |
|
998 |
|
999 static const struct net_device_ops rtl8139_netdev_ops = { |
|
1000 .ndo_open = rtl8139_open, |
|
1001 .ndo_stop = rtl8139_close, |
|
1002 .ndo_get_stats64 = rtl8139_get_stats64, |
|
1003 .ndo_change_mtu = eth_change_mtu, |
|
1004 .ndo_validate_addr = eth_validate_addr, |
|
1005 .ndo_set_mac_address = rtl8139_set_mac_address, |
|
1006 .ndo_start_xmit = rtl8139_start_xmit, |
|
1007 .ndo_set_rx_mode = rtl8139_set_rx_mode, |
|
1008 .ndo_do_ioctl = netdev_ioctl, |
|
1009 .ndo_tx_timeout = rtl8139_tx_timeout, |
|
1010 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
1011 .ndo_poll_controller = rtl8139_poll_controller, |
|
1012 #endif |
|
1013 .ndo_set_features = rtl8139_set_features, |
|
1014 }; |
|
1015 |
|
1016 static int __devinit rtl8139_init_one (struct pci_dev *pdev, |
|
1017 const struct pci_device_id *ent) |
|
1018 { |
|
1019 struct net_device *dev = NULL; |
|
1020 struct rtl8139_private *tp; |
|
1021 int i, addr_len, option; |
|
1022 void __iomem *ioaddr; |
|
1023 static int board_idx = -1; |
|
1024 |
|
1025 assert (pdev != NULL); |
|
1026 assert (ent != NULL); |
|
1027 |
|
1028 board_idx++; |
|
1029 |
|
1030 /* when we're built into the kernel, the driver version message |
|
1031 * is only printed if at least one 8139 board has been found |
|
1032 */ |
|
1033 #ifndef MODULE |
|
1034 { |
|
1035 static int printed_version; |
|
1036 if (!printed_version++) |
|
1037 pr_info(RTL8139_DRIVER_NAME "\n"); |
|
1038 } |
|
1039 #endif |
|
1040 |
|
1041 if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
|
1042 pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) { |
|
1043 dev_info(&pdev->dev, |
|
1044 "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip, use 8139cp\n", |
|
1045 pdev->vendor, pdev->device, pdev->revision); |
|
1046 return -ENODEV; |
|
1047 } |
|
1048 |
|
1049 if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
|
1050 pdev->device == PCI_DEVICE_ID_REALTEK_8139 && |
|
1051 pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS && |
|
1052 pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) { |
|
1053 pr_info("OQO Model 2 detected. Forcing PIO\n"); |
|
1054 use_io = 1; |
|
1055 } |
|
1056 |
|
1057 dev = rtl8139_init_board (pdev); |
|
1058 if (IS_ERR(dev)) |
|
1059 return PTR_ERR(dev); |
|
1060 |
|
1061 assert (dev != NULL); |
|
1062 tp = netdev_priv(dev); |
|
1063 tp->dev = dev; |
|
1064 |
|
1065 ioaddr = tp->mmio_addr; |
|
1066 assert (ioaddr != NULL); |
|
1067 |
|
1068 addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; |
|
1069 for (i = 0; i < 3; i++) |
|
1070 ((__le16 *) (dev->dev_addr))[i] = |
|
1071 cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len)); |
|
1072 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
|
1073 |
|
1074 /* The Rtl8139-specific entries in the device structure. */ |
|
1075 dev->netdev_ops = &rtl8139_netdev_ops; |
|
1076 dev->ethtool_ops = &rtl8139_ethtool_ops; |
|
1077 dev->watchdog_timeo = TX_TIMEOUT; |
|
1078 netif_napi_add(dev, &tp->napi, rtl8139_poll, 64); |
|
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 dev->vlan_features = dev->features; |
|
1086 |
|
1087 dev->hw_features |= NETIF_F_RXALL; |
|
1088 dev->hw_features |= NETIF_F_RXFCS; |
|
1089 |
|
1090 dev->irq = pdev->irq; |
|
1091 |
|
1092 /* tp zeroed and aligned in alloc_etherdev */ |
|
1093 tp = netdev_priv(dev); |
|
1094 |
|
1095 /* note: tp->chipset set in rtl8139_init_board */ |
|
1096 tp->drv_flags = board_info[ent->driver_data].hw_flags; |
|
1097 tp->mmio_addr = ioaddr; |
|
1098 tp->msg_enable = |
|
1099 (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); |
|
1100 spin_lock_init (&tp->lock); |
|
1101 spin_lock_init (&tp->rx_lock); |
|
1102 INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
|
1103 tp->mii.dev = dev; |
|
1104 tp->mii.mdio_read = mdio_read; |
|
1105 tp->mii.mdio_write = mdio_write; |
|
1106 tp->mii.phy_id_mask = 0x3f; |
|
1107 tp->mii.reg_num_mask = 0x1f; |
|
1108 |
|
1109 /* dev is fully set up and ready to use now */ |
|
1110 // offer device to EtherCAT master module |
|
1111 tp->ecdev = ecdev_offer(dev, ec_poll, THIS_MODULE); |
|
1112 |
|
1113 if (!tp->ecdev) { |
|
1114 pr_debug("about to register device named %s (%p)...\n", dev->name, dev); |
|
1115 i = register_netdev (dev); |
|
1116 if (i) goto err_out; |
|
1117 } |
|
1118 |
|
1119 pci_set_drvdata (pdev, dev); |
|
1120 |
|
1121 pr_info("%s: %s at 0x%lx, %pM, IRQ %d\n", |
|
1122 dev->name, |
|
1123 board_info[ent->driver_data].name, |
|
1124 dev->base_addr, |
|
1125 dev->dev_addr, |
|
1126 dev->irq); |
|
1127 |
|
1128 pr_debug("%s: Identified 8139 chip type '%s'\n", |
|
1129 dev->name, rtl_chip_info[tp->chipset].name); |
|
1130 |
|
1131 /* Find the connected MII xcvrs. |
|
1132 Doing this in open() would allow detecting external xcvrs later, but |
|
1133 takes too much time. */ |
|
1134 #ifdef CONFIG_8139TOO_8129 |
|
1135 if (tp->drv_flags & HAS_MII_XCVR) { |
|
1136 int phy, phy_idx = 0; |
|
1137 for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { |
|
1138 int mii_status = mdio_read(dev, phy, 1); |
|
1139 if (mii_status != 0xffff && mii_status != 0x0000) { |
|
1140 u16 advertising = mdio_read(dev, phy, 4); |
|
1141 tp->phys[phy_idx++] = phy; |
|
1142 pr_info("%s: MII transceiver %d status 0x%4.4x advertising %4.4x.\n", |
|
1143 dev->name, phy, mii_status, advertising); |
|
1144 } |
|
1145 } |
|
1146 if (phy_idx == 0) { |
|
1147 pr_info("%s: No MII transceivers found! Assuming SYM transceiver.\n", |
|
1148 dev->name); |
|
1149 tp->phys[0] = 32; |
|
1150 } |
|
1151 } else |
|
1152 #endif |
|
1153 tp->phys[0] = 32; |
|
1154 tp->mii.phy_id = tp->phys[0]; |
|
1155 |
|
1156 /* The lower four bits are the media type. */ |
|
1157 option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; |
|
1158 if (option > 0) { |
|
1159 tp->mii.full_duplex = (option & 0x210) ? 1 : 0; |
|
1160 tp->default_port = option & 0xFF; |
|
1161 if (tp->default_port) |
|
1162 tp->mii.force_media = 1; |
|
1163 } |
|
1164 if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) |
|
1165 tp->mii.full_duplex = full_duplex[board_idx]; |
|
1166 if (tp->mii.full_duplex) { |
|
1167 pr_info("%s: Media type forced to Full Duplex.\n", dev->name); |
|
1168 /* Changing the MII-advertised media because might prevent |
|
1169 re-connection. */ |
|
1170 tp->mii.force_media = 1; |
|
1171 } |
|
1172 if (tp->default_port) { |
|
1173 pr_info(" Forcing %dMbps %s-duplex operation.\n", |
|
1174 (option & 0x20 ? 100 : 10), |
|
1175 (option & 0x10 ? "full" : "half")); |
|
1176 mdio_write(dev, tp->phys[0], 0, |
|
1177 ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ |
|
1178 ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ |
|
1179 } |
|
1180 |
|
1181 /* Put the chip into low-power mode. */ |
|
1182 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
1183 RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
|
1184 |
|
1185 if (tp->ecdev) { |
|
1186 i = ecdev_open(tp->ecdev); |
|
1187 if (i) { |
|
1188 ecdev_withdraw(tp->ecdev); |
|
1189 goto err_out; |
|
1190 } |
|
1191 } |
|
1192 |
|
1193 return 0; |
|
1194 |
|
1195 err_out: |
|
1196 __rtl8139_cleanup_dev (dev); |
|
1197 pci_disable_device (pdev); |
|
1198 return i; |
|
1199 } |
|
1200 |
|
1201 |
|
1202 static void __devexit rtl8139_remove_one (struct pci_dev *pdev) |
|
1203 { |
|
1204 struct net_device *dev = pci_get_drvdata (pdev); |
|
1205 struct rtl8139_private *tp = netdev_priv(dev); |
|
1206 |
|
1207 assert (dev != NULL); |
|
1208 |
|
1209 if (tp->ecdev) { |
|
1210 ecdev_close(tp->ecdev); |
|
1211 ecdev_withdraw(tp->ecdev); |
|
1212 } |
|
1213 else { |
|
1214 cancel_delayed_work_sync(&tp->thread); |
|
1215 |
|
1216 unregister_netdev (dev); |
|
1217 } |
|
1218 |
|
1219 __rtl8139_cleanup_dev (dev); |
|
1220 pci_disable_device (pdev); |
|
1221 } |
|
1222 |
|
1223 |
|
1224 /* Serial EEPROM section. */ |
|
1225 |
|
1226 /* EEPROM_Ctrl bits. */ |
|
1227 #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ |
|
1228 #define EE_CS 0x08 /* EEPROM chip select. */ |
|
1229 #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ |
|
1230 #define EE_WRITE_0 0x00 |
|
1231 #define EE_WRITE_1 0x02 |
|
1232 #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ |
|
1233 #define EE_ENB (0x80 | EE_CS) |
|
1234 |
|
1235 /* Delay between EEPROM clock transitions. |
|
1236 No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. |
|
1237 */ |
|
1238 |
|
1239 #define eeprom_delay() (void)RTL_R8(Cfg9346) |
|
1240 |
|
1241 /* The EEPROM commands include the alway-set leading bit. */ |
|
1242 #define EE_WRITE_CMD (5) |
|
1243 #define EE_READ_CMD (6) |
|
1244 #define EE_ERASE_CMD (7) |
|
1245 |
|
1246 static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len) |
|
1247 { |
|
1248 int i; |
|
1249 unsigned retval = 0; |
|
1250 int read_cmd = location | (EE_READ_CMD << addr_len); |
|
1251 |
|
1252 RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); |
|
1253 RTL_W8 (Cfg9346, EE_ENB); |
|
1254 eeprom_delay (); |
|
1255 |
|
1256 /* Shift the read command bits out. */ |
|
1257 for (i = 4 + addr_len; i >= 0; i--) { |
|
1258 int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; |
|
1259 RTL_W8 (Cfg9346, EE_ENB | dataval); |
|
1260 eeprom_delay (); |
|
1261 RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); |
|
1262 eeprom_delay (); |
|
1263 } |
|
1264 RTL_W8 (Cfg9346, EE_ENB); |
|
1265 eeprom_delay (); |
|
1266 |
|
1267 for (i = 16; i > 0; i--) { |
|
1268 RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); |
|
1269 eeprom_delay (); |
|
1270 retval = |
|
1271 (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : |
|
1272 0); |
|
1273 RTL_W8 (Cfg9346, EE_ENB); |
|
1274 eeprom_delay (); |
|
1275 } |
|
1276 |
|
1277 /* Terminate the EEPROM access. */ |
|
1278 RTL_W8 (Cfg9346, ~EE_CS); |
|
1279 eeprom_delay (); |
|
1280 |
|
1281 return retval; |
|
1282 } |
|
1283 |
|
1284 /* MII serial management: mostly bogus for now. */ |
|
1285 /* Read and write the MII management registers using software-generated |
|
1286 serial MDIO protocol. |
|
1287 The maximum data clock rate is 2.5 Mhz. The minimum timing is usually |
|
1288 met by back-to-back PCI I/O cycles, but we insert a delay to avoid |
|
1289 "overclocking" issues. */ |
|
1290 #define MDIO_DIR 0x80 |
|
1291 #define MDIO_DATA_OUT 0x04 |
|
1292 #define MDIO_DATA_IN 0x02 |
|
1293 #define MDIO_CLK 0x01 |
|
1294 #define MDIO_WRITE0 (MDIO_DIR) |
|
1295 #define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) |
|
1296 |
|
1297 #define mdio_delay() RTL_R8(Config4) |
|
1298 |
|
1299 |
|
1300 static const char mii_2_8139_map[8] = { |
|
1301 BasicModeCtrl, |
|
1302 BasicModeStatus, |
|
1303 0, |
|
1304 0, |
|
1305 NWayAdvert, |
|
1306 NWayLPAR, |
|
1307 NWayExpansion, |
|
1308 0 |
|
1309 }; |
|
1310 |
|
1311 |
|
1312 #ifdef CONFIG_8139TOO_8129 |
|
1313 /* Syncronize the MII management interface by shifting 32 one bits out. */ |
|
1314 static void mdio_sync (void __iomem *ioaddr) |
|
1315 { |
|
1316 int i; |
|
1317 |
|
1318 for (i = 32; i >= 0; i--) { |
|
1319 RTL_W8 (Config4, MDIO_WRITE1); |
|
1320 mdio_delay (); |
|
1321 RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); |
|
1322 mdio_delay (); |
|
1323 } |
|
1324 } |
|
1325 #endif |
|
1326 |
|
1327 static int mdio_read (struct net_device *dev, int phy_id, int location) |
|
1328 { |
|
1329 struct rtl8139_private *tp = netdev_priv(dev); |
|
1330 int retval = 0; |
|
1331 #ifdef CONFIG_8139TOO_8129 |
|
1332 void __iomem *ioaddr = tp->mmio_addr; |
|
1333 int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; |
|
1334 int i; |
|
1335 #endif |
|
1336 |
|
1337 if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
|
1338 void __iomem *ioaddr = tp->mmio_addr; |
|
1339 return location < 8 && mii_2_8139_map[location] ? |
|
1340 RTL_R16 (mii_2_8139_map[location]) : 0; |
|
1341 } |
|
1342 |
|
1343 #ifdef CONFIG_8139TOO_8129 |
|
1344 mdio_sync (ioaddr); |
|
1345 /* Shift the read command bits out. */ |
|
1346 for (i = 15; i >= 0; i--) { |
|
1347 int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; |
|
1348 |
|
1349 RTL_W8 (Config4, MDIO_DIR | dataval); |
|
1350 mdio_delay (); |
|
1351 RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); |
|
1352 mdio_delay (); |
|
1353 } |
|
1354 |
|
1355 /* Read the two transition, 16 data, and wire-idle bits. */ |
|
1356 for (i = 19; i > 0; i--) { |
|
1357 RTL_W8 (Config4, 0); |
|
1358 mdio_delay (); |
|
1359 retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); |
|
1360 RTL_W8 (Config4, MDIO_CLK); |
|
1361 mdio_delay (); |
|
1362 } |
|
1363 #endif |
|
1364 |
|
1365 return (retval >> 1) & 0xffff; |
|
1366 } |
|
1367 |
|
1368 |
|
1369 static void mdio_write (struct net_device *dev, int phy_id, int location, |
|
1370 int value) |
|
1371 { |
|
1372 struct rtl8139_private *tp = netdev_priv(dev); |
|
1373 #ifdef CONFIG_8139TOO_8129 |
|
1374 void __iomem *ioaddr = tp->mmio_addr; |
|
1375 int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; |
|
1376 int i; |
|
1377 #endif |
|
1378 |
|
1379 if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
|
1380 void __iomem *ioaddr = tp->mmio_addr; |
|
1381 if (location == 0) { |
|
1382 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
1383 RTL_W16 (BasicModeCtrl, value); |
|
1384 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1385 } else if (location < 8 && mii_2_8139_map[location]) |
|
1386 RTL_W16 (mii_2_8139_map[location], value); |
|
1387 return; |
|
1388 } |
|
1389 |
|
1390 #ifdef CONFIG_8139TOO_8129 |
|
1391 mdio_sync (ioaddr); |
|
1392 |
|
1393 /* Shift the command bits out. */ |
|
1394 for (i = 31; i >= 0; i--) { |
|
1395 int dataval = |
|
1396 (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; |
|
1397 RTL_W8 (Config4, dataval); |
|
1398 mdio_delay (); |
|
1399 RTL_W8 (Config4, dataval | MDIO_CLK); |
|
1400 mdio_delay (); |
|
1401 } |
|
1402 /* Clear out extra bits. */ |
|
1403 for (i = 2; i > 0; i--) { |
|
1404 RTL_W8 (Config4, 0); |
|
1405 mdio_delay (); |
|
1406 RTL_W8 (Config4, MDIO_CLK); |
|
1407 mdio_delay (); |
|
1408 } |
|
1409 #endif |
|
1410 } |
|
1411 |
|
1412 |
|
1413 static int rtl8139_open (struct net_device *dev) |
|
1414 { |
|
1415 struct rtl8139_private *tp = netdev_priv(dev); |
|
1416 int retval; |
|
1417 void __iomem *ioaddr = tp->mmio_addr; |
|
1418 |
|
1419 if (!tp->ecdev) { |
|
1420 retval = request_irq(dev->irq, rtl8139_interrupt, |
|
1421 IRQF_SHARED, dev->name, dev); |
|
1422 if (retval) |
|
1423 return retval; |
|
1424 } |
|
1425 |
|
1426 tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
|
1427 &tp->tx_bufs_dma, GFP_KERNEL); |
|
1428 tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
|
1429 &tp->rx_ring_dma, GFP_KERNEL); |
|
1430 if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { |
|
1431 if (!tp->ecdev) { |
|
1432 free_irq(dev->irq, dev); |
|
1433 } |
|
1434 |
|
1435 if (tp->tx_bufs) |
|
1436 dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
|
1437 tp->tx_bufs, tp->tx_bufs_dma); |
|
1438 if (tp->rx_ring) |
|
1439 dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
|
1440 tp->rx_ring, tp->rx_ring_dma); |
|
1441 |
|
1442 return -ENOMEM; |
|
1443 |
|
1444 } |
|
1445 |
|
1446 napi_enable(&tp->napi); |
|
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 if (!tp->ecdev) { |
|
1454 netif_start_queue (dev); |
|
1455 } |
|
1456 |
|
1457 netif_dbg(tp, ifup, dev, |
|
1458 "%s() ioaddr %#llx IRQ %d GP Pins %02x %s-duplex\n", |
|
1459 __func__, |
|
1460 (unsigned long long)pci_resource_start (tp->pci_dev, 1), |
|
1461 dev->irq, RTL_R8 (MediaStatus), |
|
1462 tp->mii.full_duplex ? "full" : "half"); |
|
1463 |
|
1464 if (!tp->ecdev) { |
|
1465 rtl8139_start_thread(tp); |
|
1466 } |
|
1467 |
|
1468 return 0; |
|
1469 } |
|
1470 |
|
1471 |
|
1472 static void rtl_check_media (struct net_device *dev, unsigned int init_media) |
|
1473 { |
|
1474 struct rtl8139_private *tp = netdev_priv(dev); |
|
1475 |
|
1476 if (tp->ecdev) { |
|
1477 void __iomem *ioaddr = tp->mmio_addr; |
|
1478 u16 state = RTL_R16(BasicModeStatus) & BMSR_LSTATUS; |
|
1479 ecdev_set_link(tp->ecdev, state ? 1 : 0); |
|
1480 } |
|
1481 else { |
|
1482 if (tp->phys[0] >= 0) { |
|
1483 mii_check_media(&tp->mii, netif_msg_link(tp), init_media); |
|
1484 } |
|
1485 } |
|
1486 } |
|
1487 |
|
1488 /* Start the hardware at open or resume. */ |
|
1489 static void rtl8139_hw_start (struct net_device *dev) |
|
1490 { |
|
1491 struct rtl8139_private *tp = netdev_priv(dev); |
|
1492 void __iomem *ioaddr = tp->mmio_addr; |
|
1493 u32 i; |
|
1494 u8 tmp; |
|
1495 |
|
1496 /* Bring old chips out of low-power mode. */ |
|
1497 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
1498 RTL_W8 (HltClk, 'R'); |
|
1499 |
|
1500 rtl8139_chip_reset (ioaddr); |
|
1501 |
|
1502 /* unlock Config[01234] and BMCR register writes */ |
|
1503 RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
|
1504 /* Restore our idea of the MAC address. */ |
|
1505 RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); |
|
1506 RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4))); |
|
1507 |
|
1508 tp->cur_rx = 0; |
|
1509 |
|
1510 /* init Rx ring buffer DMA address */ |
|
1511 RTL_W32_F (RxBuf, tp->rx_ring_dma); |
|
1512 |
|
1513 /* Must enable Tx/Rx before setting transfer thresholds! */ |
|
1514 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
1515 |
|
1516 tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
|
1517 RTL_W32 (RxConfig, tp->rx_config); |
|
1518 RTL_W32 (TxConfig, rtl8139_tx_config); |
|
1519 |
|
1520 rtl_check_media (dev, 1); |
|
1521 |
|
1522 if (tp->chipset >= CH_8139B) { |
|
1523 /* Disable magic packet scanning, which is enabled |
|
1524 * when PM is enabled in Config1. It can be reenabled |
|
1525 * via ETHTOOL_SWOL if desired. */ |
|
1526 RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); |
|
1527 } |
|
1528 |
|
1529 netdev_dbg(dev, "init buffer addresses\n"); |
|
1530 |
|
1531 /* Lock Config[01234] and BMCR register writes */ |
|
1532 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1533 |
|
1534 /* init Tx buffer DMA addresses */ |
|
1535 for (i = 0; i < NUM_TX_DESC; i++) |
|
1536 RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); |
|
1537 |
|
1538 RTL_W32 (RxMissed, 0); |
|
1539 |
|
1540 rtl8139_set_rx_mode (dev); |
|
1541 |
|
1542 /* no early-rx interrupts */ |
|
1543 RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); |
|
1544 |
|
1545 /* make sure RxTx has started */ |
|
1546 tmp = RTL_R8 (ChipCmd); |
|
1547 if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) |
|
1548 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
1549 |
|
1550 if (!tp->ecdev) { |
|
1551 /* Enable all known interrupts by setting the interrupt mask. */ |
|
1552 RTL_W16 (IntrMask, rtl8139_intr_mask); |
|
1553 } |
|
1554 } |
|
1555 |
|
1556 |
|
1557 /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ |
|
1558 static void rtl8139_init_ring (struct net_device *dev) |
|
1559 { |
|
1560 struct rtl8139_private *tp = netdev_priv(dev); |
|
1561 int i; |
|
1562 |
|
1563 tp->cur_rx = 0; |
|
1564 tp->cur_tx = 0; |
|
1565 tp->dirty_tx = 0; |
|
1566 |
|
1567 for (i = 0; i < NUM_TX_DESC; i++) |
|
1568 tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; |
|
1569 } |
|
1570 |
|
1571 |
|
1572 /* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ |
|
1573 static int next_tick = 3 * HZ; |
|
1574 |
|
1575 #ifndef CONFIG_8139TOO_TUNE_TWISTER |
|
1576 static inline void rtl8139_tune_twister (struct net_device *dev, |
|
1577 struct rtl8139_private *tp) {} |
|
1578 #else |
|
1579 enum TwisterParamVals { |
|
1580 PARA78_default = 0x78fa8388, |
|
1581 PARA7c_default = 0xcb38de43, /* param[0][3] */ |
|
1582 PARA7c_xxx = 0xcb38de43, |
|
1583 }; |
|
1584 |
|
1585 static const unsigned long param[4][4] = { |
|
1586 {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, |
|
1587 {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
|
1588 {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
|
1589 {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} |
|
1590 }; |
|
1591 |
|
1592 static void rtl8139_tune_twister (struct net_device *dev, |
|
1593 struct rtl8139_private *tp) |
|
1594 { |
|
1595 int linkcase; |
|
1596 void __iomem *ioaddr = tp->mmio_addr; |
|
1597 |
|
1598 /* This is a complicated state machine to configure the "twister" for |
|
1599 impedance/echos based on the cable length. |
|
1600 All of this is magic and undocumented. |
|
1601 */ |
|
1602 switch (tp->twistie) { |
|
1603 case 1: |
|
1604 if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { |
|
1605 /* We have link beat, let us tune the twister. */ |
|
1606 RTL_W16 (CSCR, CSCR_LinkDownOffCmd); |
|
1607 tp->twistie = 2; /* Change to state 2. */ |
|
1608 next_tick = HZ / 10; |
|
1609 } else { |
|
1610 /* Just put in some reasonable defaults for when beat returns. */ |
|
1611 RTL_W16 (CSCR, CSCR_LinkDownCmd); |
|
1612 RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ |
|
1613 RTL_W32 (PARA78, PARA78_default); |
|
1614 RTL_W32 (PARA7c, PARA7c_default); |
|
1615 tp->twistie = 0; /* Bail from future actions. */ |
|
1616 } |
|
1617 break; |
|
1618 case 2: |
|
1619 /* Read how long it took to hear the echo. */ |
|
1620 linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; |
|
1621 if (linkcase == 0x7000) |
|
1622 tp->twist_row = 3; |
|
1623 else if (linkcase == 0x3000) |
|
1624 tp->twist_row = 2; |
|
1625 else if (linkcase == 0x1000) |
|
1626 tp->twist_row = 1; |
|
1627 else |
|
1628 tp->twist_row = 0; |
|
1629 tp->twist_col = 0; |
|
1630 tp->twistie = 3; /* Change to state 2. */ |
|
1631 next_tick = HZ / 10; |
|
1632 break; |
|
1633 case 3: |
|
1634 /* Put out four tuning parameters, one per 100msec. */ |
|
1635 if (tp->twist_col == 0) |
|
1636 RTL_W16 (FIFOTMS, 0); |
|
1637 RTL_W32 (PARA7c, param[(int) tp->twist_row] |
|
1638 [(int) tp->twist_col]); |
|
1639 next_tick = HZ / 10; |
|
1640 if (++tp->twist_col >= 4) { |
|
1641 /* For short cables we are done. |
|
1642 For long cables (row == 3) check for mistune. */ |
|
1643 tp->twistie = |
|
1644 (tp->twist_row == 3) ? 4 : 0; |
|
1645 } |
|
1646 break; |
|
1647 case 4: |
|
1648 /* Special case for long cables: check for mistune. */ |
|
1649 if ((RTL_R16 (CSCR) & |
|
1650 CSCR_LinkStatusBits) == 0x7000) { |
|
1651 tp->twistie = 0; |
|
1652 break; |
|
1653 } else { |
|
1654 RTL_W32 (PARA7c, 0xfb38de03); |
|
1655 tp->twistie = 5; |
|
1656 next_tick = HZ / 10; |
|
1657 } |
|
1658 break; |
|
1659 case 5: |
|
1660 /* Retune for shorter cable (column 2). */ |
|
1661 RTL_W32 (FIFOTMS, 0x20); |
|
1662 RTL_W32 (PARA78, PARA78_default); |
|
1663 RTL_W32 (PARA7c, PARA7c_default); |
|
1664 RTL_W32 (FIFOTMS, 0x00); |
|
1665 tp->twist_row = 2; |
|
1666 tp->twist_col = 0; |
|
1667 tp->twistie = 3; |
|
1668 next_tick = HZ / 10; |
|
1669 break; |
|
1670 |
|
1671 default: |
|
1672 /* do nothing */ |
|
1673 break; |
|
1674 } |
|
1675 } |
|
1676 #endif /* CONFIG_8139TOO_TUNE_TWISTER */ |
|
1677 |
|
1678 static inline void rtl8139_thread_iter (struct net_device *dev, |
|
1679 struct rtl8139_private *tp, |
|
1680 void __iomem *ioaddr) |
|
1681 { |
|
1682 int mii_lpa; |
|
1683 |
|
1684 mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); |
|
1685 |
|
1686 if (!tp->mii.force_media && mii_lpa != 0xffff) { |
|
1687 int duplex = ((mii_lpa & LPA_100FULL) || |
|
1688 (mii_lpa & 0x01C0) == 0x0040); |
|
1689 if (tp->mii.full_duplex != duplex) { |
|
1690 tp->mii.full_duplex = duplex; |
|
1691 |
|
1692 if (mii_lpa) { |
|
1693 netdev_info(dev, "Setting %s-duplex based on MII #%d link partner ability of %04x\n", |
|
1694 tp->mii.full_duplex ? "full" : "half", |
|
1695 tp->phys[0], mii_lpa); |
|
1696 } else { |
|
1697 netdev_info(dev, "media is unconnected, link down, or incompatible connection\n"); |
|
1698 } |
|
1699 #if 0 |
|
1700 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
1701 RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); |
|
1702 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1703 #endif |
|
1704 } |
|
1705 } |
|
1706 |
|
1707 next_tick = HZ * 60; |
|
1708 |
|
1709 rtl8139_tune_twister (dev, tp); |
|
1710 |
|
1711 netdev_dbg(dev, "Media selection tick, Link partner %04x\n", |
|
1712 RTL_R16(NWayLPAR)); |
|
1713 netdev_dbg(dev, "Other registers are IntMask %04x IntStatus %04x\n", |
|
1714 RTL_R16(IntrMask), RTL_R16(IntrStatus)); |
|
1715 netdev_dbg(dev, "Chip config %02x %02x\n", |
|
1716 RTL_R8(Config0), RTL_R8(Config1)); |
|
1717 } |
|
1718 |
|
1719 static void rtl8139_thread (struct work_struct *work) |
|
1720 { |
|
1721 struct rtl8139_private *tp = |
|
1722 container_of(work, struct rtl8139_private, thread.work); |
|
1723 struct net_device *dev = tp->mii.dev; |
|
1724 unsigned long thr_delay = next_tick; |
|
1725 |
|
1726 rtnl_lock(); |
|
1727 |
|
1728 if (!netif_running(dev)) |
|
1729 goto out_unlock; |
|
1730 |
|
1731 if (tp->watchdog_fired) { |
|
1732 tp->watchdog_fired = 0; |
|
1733 rtl8139_tx_timeout_task(work); |
|
1734 } else |
|
1735 rtl8139_thread_iter(dev, tp, tp->mmio_addr); |
|
1736 |
|
1737 if (tp->have_thread) |
|
1738 schedule_delayed_work(&tp->thread, thr_delay); |
|
1739 out_unlock: |
|
1740 rtnl_unlock (); |
|
1741 } |
|
1742 |
|
1743 static void rtl8139_start_thread(struct rtl8139_private *tp) |
|
1744 { |
|
1745 tp->twistie = 0; |
|
1746 if (tp->chipset == CH_8139_K) |
|
1747 tp->twistie = 1; |
|
1748 else if (tp->drv_flags & HAS_LNK_CHNG) |
|
1749 return; |
|
1750 |
|
1751 tp->have_thread = 1; |
|
1752 tp->watchdog_fired = 0; |
|
1753 |
|
1754 schedule_delayed_work(&tp->thread, next_tick); |
|
1755 } |
|
1756 |
|
1757 static inline void rtl8139_tx_clear (struct rtl8139_private *tp) |
|
1758 { |
|
1759 tp->cur_tx = 0; |
|
1760 tp->dirty_tx = 0; |
|
1761 |
|
1762 /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ |
|
1763 } |
|
1764 |
|
1765 static void rtl8139_tx_timeout_task (struct work_struct *work) |
|
1766 { |
|
1767 struct rtl8139_private *tp = |
|
1768 container_of(work, struct rtl8139_private, thread.work); |
|
1769 struct net_device *dev = tp->mii.dev; |
|
1770 void __iomem *ioaddr = tp->mmio_addr; |
|
1771 int i; |
|
1772 u8 tmp8; |
|
1773 |
|
1774 netdev_dbg(dev, "Transmit timeout, status %02x %04x %04x media %02x\n", |
|
1775 RTL_R8(ChipCmd), RTL_R16(IntrStatus), |
|
1776 RTL_R16(IntrMask), RTL_R8(MediaStatus)); |
|
1777 /* Emit info to figure out what went wrong. */ |
|
1778 netdev_dbg(dev, "Tx queue start entry %ld dirty entry %ld\n", |
|
1779 tp->cur_tx, tp->dirty_tx); |
|
1780 for (i = 0; i < NUM_TX_DESC; i++) |
|
1781 netdev_dbg(dev, "Tx descriptor %d is %08x%s\n", |
|
1782 i, RTL_R32(TxStatus0 + (i * 4)), |
|
1783 i == tp->dirty_tx % NUM_TX_DESC ? |
|
1784 " (queue head)" : ""); |
|
1785 |
|
1786 tp->xstats.tx_timeouts++; |
|
1787 |
|
1788 /* disable Tx ASAP, if not already */ |
|
1789 tmp8 = RTL_R8 (ChipCmd); |
|
1790 if (tmp8 & CmdTxEnb) |
|
1791 RTL_W8 (ChipCmd, CmdRxEnb); |
|
1792 |
|
1793 if (tp->ecdev) { |
|
1794 rtl8139_tx_clear (tp); |
|
1795 rtl8139_hw_start (dev); |
|
1796 } |
|
1797 else { |
|
1798 spin_lock_bh(&tp->rx_lock); |
|
1799 /* Disable interrupts by clearing the interrupt mask. */ |
|
1800 RTL_W16 (IntrMask, 0x0000); |
|
1801 |
|
1802 /* Stop a shared interrupt from scavenging while we are. */ |
|
1803 spin_lock_irq(&tp->lock); |
|
1804 rtl8139_tx_clear (tp); |
|
1805 spin_unlock_irq(&tp->lock); |
|
1806 |
|
1807 /* ...and finally, reset everything */ |
|
1808 if (netif_running(dev)) { |
|
1809 rtl8139_hw_start (dev); |
|
1810 netif_wake_queue (dev); |
|
1811 } |
|
1812 spin_unlock_bh(&tp->rx_lock); |
|
1813 } |
|
1814 } |
|
1815 |
|
1816 static void rtl8139_tx_timeout (struct net_device *dev) |
|
1817 { |
|
1818 struct rtl8139_private *tp = netdev_priv(dev); |
|
1819 |
|
1820 tp->watchdog_fired = 1; |
|
1821 if (!tp->ecdev && !tp->have_thread) { |
|
1822 INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
|
1823 schedule_delayed_work(&tp->thread, next_tick); |
|
1824 } |
|
1825 } |
|
1826 |
|
1827 static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb, |
|
1828 struct net_device *dev) |
|
1829 { |
|
1830 struct rtl8139_private *tp = netdev_priv(dev); |
|
1831 void __iomem *ioaddr = tp->mmio_addr; |
|
1832 unsigned int entry; |
|
1833 unsigned int len = skb->len; |
|
1834 unsigned long flags = 0; |
|
1835 |
|
1836 /* Calculate the next Tx descriptor entry. */ |
|
1837 entry = tp->cur_tx % NUM_TX_DESC; |
|
1838 |
|
1839 /* Note: the chip doesn't have auto-pad! */ |
|
1840 if (likely(len < TX_BUF_SIZE)) { |
|
1841 if (len < ETH_ZLEN) |
|
1842 memset(tp->tx_buf[entry], 0, ETH_ZLEN); |
|
1843 skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); |
|
1844 if (!tp->ecdev) { |
|
1845 dev_kfree_skb(skb); |
|
1846 } |
|
1847 } else { |
|
1848 if (!tp->ecdev) { |
|
1849 dev_kfree_skb(skb); |
|
1850 } |
|
1851 dev->stats.tx_dropped++; |
|
1852 return NETDEV_TX_OK; |
|
1853 } |
|
1854 |
|
1855 if (!tp->ecdev) { |
|
1856 spin_lock_irqsave(&tp->lock, flags); |
|
1857 } |
|
1858 /* |
|
1859 * Writing to TxStatus triggers a DMA transfer of the data |
|
1860 * copied to tp->tx_buf[entry] above. Use a memory barrier |
|
1861 * to make sure that the device sees the updated data. |
|
1862 */ |
|
1863 wmb(); |
|
1864 RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), |
|
1865 tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); |
|
1866 |
|
1867 tp->cur_tx++; |
|
1868 |
|
1869 if (!tp->ecdev) { |
|
1870 if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) |
|
1871 netif_stop_queue (dev); |
|
1872 spin_unlock_irqrestore(&tp->lock, flags); |
|
1873 } |
|
1874 |
|
1875 netif_dbg(tp, tx_queued, dev, "Queued Tx packet size %u to slot %d\n", |
|
1876 len, entry); |
|
1877 |
|
1878 return NETDEV_TX_OK; |
|
1879 } |
|
1880 |
|
1881 |
|
1882 static void rtl8139_tx_interrupt (struct net_device *dev, |
|
1883 struct rtl8139_private *tp, |
|
1884 void __iomem *ioaddr) |
|
1885 { |
|
1886 unsigned long dirty_tx, tx_left; |
|
1887 |
|
1888 assert (dev != NULL); |
|
1889 assert (ioaddr != NULL); |
|
1890 |
|
1891 dirty_tx = tp->dirty_tx; |
|
1892 tx_left = tp->cur_tx - dirty_tx; |
|
1893 while (tx_left > 0) { |
|
1894 int entry = dirty_tx % NUM_TX_DESC; |
|
1895 int txstatus; |
|
1896 |
|
1897 txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); |
|
1898 |
|
1899 if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) |
|
1900 break; /* It still hasn't been Txed */ |
|
1901 |
|
1902 /* Note: TxCarrierLost is always asserted at 100mbps. */ |
|
1903 if (txstatus & (TxOutOfWindow | TxAborted)) { |
|
1904 /* There was an major error, log it. */ |
|
1905 netif_dbg(tp, tx_err, dev, "Transmit error, Tx status %08x\n", |
|
1906 txstatus); |
|
1907 dev->stats.tx_errors++; |
|
1908 if (txstatus & TxAborted) { |
|
1909 dev->stats.tx_aborted_errors++; |
|
1910 RTL_W32 (TxConfig, TxClearAbt); |
|
1911 RTL_W16 (IntrStatus, TxErr); |
|
1912 wmb(); |
|
1913 } |
|
1914 if (txstatus & TxCarrierLost) |
|
1915 dev->stats.tx_carrier_errors++; |
|
1916 if (txstatus & TxOutOfWindow) |
|
1917 dev->stats.tx_window_errors++; |
|
1918 } else { |
|
1919 if (txstatus & TxUnderrun) { |
|
1920 /* Add 64 to the Tx FIFO threshold. */ |
|
1921 if (tp->tx_flag < 0x00300000) |
|
1922 tp->tx_flag += 0x00020000; |
|
1923 dev->stats.tx_fifo_errors++; |
|
1924 } |
|
1925 dev->stats.collisions += (txstatus >> 24) & 15; |
|
1926 u64_stats_update_begin(&tp->tx_stats.syncp); |
|
1927 tp->tx_stats.packets++; |
|
1928 tp->tx_stats.bytes += txstatus & 0x7ff; |
|
1929 u64_stats_update_end(&tp->tx_stats.syncp); |
|
1930 } |
|
1931 |
|
1932 dirty_tx++; |
|
1933 tx_left--; |
|
1934 } |
|
1935 |
|
1936 #ifndef RTL8139_NDEBUG |
|
1937 if (tp->cur_tx - dirty_tx > NUM_TX_DESC) { |
|
1938 pr_err("%s: Out-of-sync dirty pointer, %ld vs. %ld.\n", |
|
1939 dev->name, dirty_tx, tp->cur_tx); |
|
1940 dirty_tx += NUM_TX_DESC; |
|
1941 } |
|
1942 #endif /* RTL8139_NDEBUG */ |
|
1943 |
|
1944 /* only wake the queue if we did work, and the queue is stopped */ |
|
1945 if (tp->dirty_tx != dirty_tx) { |
|
1946 tp->dirty_tx = dirty_tx; |
|
1947 mb(); |
|
1948 if (!tp->ecdev) { |
|
1949 netif_wake_queue (dev); |
|
1950 } |
|
1951 } |
|
1952 } |
|
1953 |
|
1954 |
|
1955 /* TODO: clean this up! Rx reset need not be this intensive */ |
|
1956 static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, |
|
1957 struct rtl8139_private *tp, void __iomem *ioaddr) |
|
1958 { |
|
1959 u8 tmp8; |
|
1960 #ifdef CONFIG_8139_OLD_RX_RESET |
|
1961 int tmp_work; |
|
1962 #endif |
|
1963 |
|
1964 if (netif_msg_rx_err (tp)) |
|
1965 pr_debug("%s: Ethernet frame had errors, status %8.8x.\n", |
|
1966 dev->name, rx_status); |
|
1967 dev->stats.rx_errors++; |
|
1968 if (!(rx_status & RxStatusOK)) { |
|
1969 if (rx_status & RxTooLong) { |
|
1970 pr_debug("%s: Oversized Ethernet frame, status %4.4x!\n", |
|
1971 dev->name, rx_status); |
|
1972 /* A.C.: The chip hangs here. */ |
|
1973 } |
|
1974 if (rx_status & (RxBadSymbol | RxBadAlign)) |
|
1975 dev->stats.rx_frame_errors++; |
|
1976 if (rx_status & (RxRunt | RxTooLong)) |
|
1977 dev->stats.rx_length_errors++; |
|
1978 if (rx_status & RxCRCErr) |
|
1979 dev->stats.rx_crc_errors++; |
|
1980 } else { |
|
1981 tp->xstats.rx_lost_in_ring++; |
|
1982 } |
|
1983 |
|
1984 #ifndef CONFIG_8139_OLD_RX_RESET |
|
1985 tmp8 = RTL_R8 (ChipCmd); |
|
1986 RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); |
|
1987 RTL_W8 (ChipCmd, tmp8); |
|
1988 RTL_W32 (RxConfig, tp->rx_config); |
|
1989 tp->cur_rx = 0; |
|
1990 #else |
|
1991 /* Reset the receiver, based on RealTek recommendation. (Bug?) */ |
|
1992 |
|
1993 /* disable receive */ |
|
1994 RTL_W8_F (ChipCmd, CmdTxEnb); |
|
1995 tmp_work = 200; |
|
1996 while (--tmp_work > 0) { |
|
1997 udelay(1); |
|
1998 tmp8 = RTL_R8 (ChipCmd); |
|
1999 if (!(tmp8 & CmdRxEnb)) |
|
2000 break; |
|
2001 } |
|
2002 if (tmp_work <= 0) |
|
2003 pr_warning(PFX "rx stop wait too long\n"); |
|
2004 /* restart receive */ |
|
2005 tmp_work = 200; |
|
2006 while (--tmp_work > 0) { |
|
2007 RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
2008 udelay(1); |
|
2009 tmp8 = RTL_R8 (ChipCmd); |
|
2010 if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) |
|
2011 break; |
|
2012 } |
|
2013 if (tmp_work <= 0) |
|
2014 pr_warning(PFX "tx/rx enable wait too long\n"); |
|
2015 |
|
2016 /* and reinitialize all rx related registers */ |
|
2017 RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
|
2018 /* Must enable Tx/Rx before setting transfer thresholds! */ |
|
2019 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
2020 |
|
2021 tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
|
2022 RTL_W32 (RxConfig, tp->rx_config); |
|
2023 tp->cur_rx = 0; |
|
2024 |
|
2025 pr_debug("init buffer addresses\n"); |
|
2026 |
|
2027 /* Lock Config[01234] and BMCR register writes */ |
|
2028 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
2029 |
|
2030 /* init Rx ring buffer DMA address */ |
|
2031 RTL_W32_F (RxBuf, tp->rx_ring_dma); |
|
2032 |
|
2033 /* A.C.: Reset the multicast list. */ |
|
2034 __set_rx_mode (dev); |
|
2035 #endif |
|
2036 } |
|
2037 |
|
2038 #if RX_BUF_IDX == 3 |
|
2039 static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring, |
|
2040 u32 offset, unsigned int size) |
|
2041 { |
|
2042 u32 left = RX_BUF_LEN - offset; |
|
2043 |
|
2044 if (size > left) { |
|
2045 skb_copy_to_linear_data(skb, ring + offset, left); |
|
2046 skb_copy_to_linear_data_offset(skb, left, ring, size - left); |
|
2047 } else |
|
2048 skb_copy_to_linear_data(skb, ring + offset, size); |
|
2049 } |
|
2050 #endif |
|
2051 |
|
2052 static void rtl8139_isr_ack(struct rtl8139_private *tp) |
|
2053 { |
|
2054 void __iomem *ioaddr = tp->mmio_addr; |
|
2055 u16 status; |
|
2056 |
|
2057 status = RTL_R16 (IntrStatus) & RxAckBits; |
|
2058 |
|
2059 /* Clear out errors and receive interrupts */ |
|
2060 if (likely(status != 0)) { |
|
2061 if (unlikely(status & (RxFIFOOver | RxOverflow))) { |
|
2062 tp->dev->stats.rx_errors++; |
|
2063 if (status & RxFIFOOver) |
|
2064 tp->dev->stats.rx_fifo_errors++; |
|
2065 } |
|
2066 RTL_W16_F (IntrStatus, RxAckBits); |
|
2067 } |
|
2068 } |
|
2069 |
|
2070 static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, |
|
2071 int budget) |
|
2072 { |
|
2073 void __iomem *ioaddr = tp->mmio_addr; |
|
2074 int received = 0; |
|
2075 unsigned char *rx_ring = tp->rx_ring; |
|
2076 unsigned int cur_rx = tp->cur_rx; |
|
2077 unsigned int rx_size = 0; |
|
2078 |
|
2079 pr_debug("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x," |
|
2080 " free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx, |
|
2081 RTL_R16 (RxBufAddr), |
|
2082 RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); |
|
2083 |
|
2084 while ((tp->ecdev || netif_running(dev)) |
|
2085 && received < budget |
|
2086 && (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { |
|
2087 u32 ring_offset = cur_rx % RX_BUF_LEN; |
|
2088 u32 rx_status; |
|
2089 unsigned int pkt_size; |
|
2090 struct sk_buff *skb; |
|
2091 |
|
2092 rmb(); |
|
2093 |
|
2094 /* read size+status of next frame from DMA ring buffer */ |
|
2095 rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset)); |
|
2096 rx_size = rx_status >> 16; |
|
2097 if (likely(!(dev->features & NETIF_F_RXFCS))) |
|
2098 pkt_size = rx_size - 4; |
|
2099 else |
|
2100 pkt_size = rx_size; |
|
2101 |
|
2102 if (!tp->ecdev) { |
|
2103 if (netif_msg_rx_status(tp)) |
|
2104 pr_debug("%s: rtl8139_rx() status %4.4x, size %4.4x," |
|
2105 " cur %4.4x.\n", dev->name, rx_status, |
|
2106 rx_size, cur_rx); |
|
2107 } |
|
2108 #if RTL8139_DEBUG > 2 |
|
2109 { |
|
2110 int i; |
|
2111 pr_debug("%s: Frame contents ", dev->name); |
|
2112 for (i = 0; i < 70; i++) |
|
2113 pr_cont(" %2.2x", |
|
2114 rx_ring[ring_offset + i]); |
|
2115 pr_cont(".\n"); |
|
2116 } |
|
2117 #endif |
|
2118 |
|
2119 /* Packet copy from FIFO still in progress. |
|
2120 * Theoretically, this should never happen |
|
2121 * since EarlyRx is disabled. |
|
2122 */ |
|
2123 if (unlikely(rx_size == 0xfff0)) { |
|
2124 if (!tp->fifo_copy_timeout) |
|
2125 tp->fifo_copy_timeout = jiffies + 2; |
|
2126 else if (time_after(jiffies, tp->fifo_copy_timeout)) { |
|
2127 pr_debug("%s: hung FIFO. Reset.", dev->name); |
|
2128 rx_size = 0; |
|
2129 goto no_early_rx; |
|
2130 } |
|
2131 if (netif_msg_intr(tp)) { |
|
2132 pr_debug("%s: fifo copy in progress.", |
|
2133 dev->name); |
|
2134 } |
|
2135 tp->xstats.early_rx++; |
|
2136 break; |
|
2137 } |
|
2138 |
|
2139 no_early_rx: |
|
2140 tp->fifo_copy_timeout = 0; |
|
2141 |
|
2142 /* If Rx err or invalid rx_size/rx_status received |
|
2143 * (which happens if we get lost in the ring), |
|
2144 * Rx process gets reset, so we abort any further |
|
2145 * Rx processing. |
|
2146 */ |
|
2147 if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || |
|
2148 (rx_size < 8) || |
|
2149 (!(rx_status & RxStatusOK)))) { |
|
2150 if ((dev->features & NETIF_F_RXALL) && |
|
2151 (rx_size <= (MAX_ETH_FRAME_SIZE + 4)) && |
|
2152 (rx_size >= 8) && |
|
2153 (!(rx_status & RxStatusOK))) { |
|
2154 /* Length is at least mostly OK, but pkt has |
|
2155 * error. I'm hoping we can handle some of these |
|
2156 * errors without resetting the chip. --Ben |
|
2157 */ |
|
2158 dev->stats.rx_errors++; |
|
2159 if (rx_status & RxCRCErr) { |
|
2160 dev->stats.rx_crc_errors++; |
|
2161 goto keep_pkt; |
|
2162 } |
|
2163 if (rx_status & RxRunt) { |
|
2164 dev->stats.rx_length_errors++; |
|
2165 goto keep_pkt; |
|
2166 } |
|
2167 } |
|
2168 rtl8139_rx_err (rx_status, dev, tp, ioaddr); |
|
2169 received = -1; |
|
2170 goto out; |
|
2171 } |
|
2172 |
|
2173 keep_pkt: |
|
2174 if (tp->ecdev) { |
|
2175 ecdev_receive(tp->ecdev, |
|
2176 &rx_ring[ring_offset + 4], pkt_size); |
|
2177 dev->last_rx = jiffies; |
|
2178 dev->stats.rx_bytes += pkt_size; |
|
2179 dev->stats.rx_packets++; |
|
2180 } else { |
|
2181 /* Malloc up new buffer, compatible with net-2e. */ |
|
2182 /* Omit the four octet CRC from the length. */ |
|
2183 |
|
2184 skb = netdev_alloc_skb_ip_align(dev, pkt_size); |
|
2185 if (likely(skb)) { |
|
2186 #if RX_BUF_IDX == 3 |
|
2187 wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); |
|
2188 #else |
|
2189 skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], |
|
2190 pkt_size); |
|
2191 #endif |
|
2192 skb_put (skb, pkt_size); |
|
2193 |
|
2194 skb->protocol = eth_type_trans (skb, dev); |
|
2195 |
|
2196 u64_stats_update_begin(&tp->rx_stats.syncp); |
|
2197 tp->rx_stats.packets++; |
|
2198 tp->rx_stats.bytes += pkt_size; |
|
2199 u64_stats_update_end(&tp->rx_stats.syncp); |
|
2200 |
|
2201 netif_receive_skb (skb); |
|
2202 } else { |
|
2203 if (net_ratelimit()) |
|
2204 netdev_warn(dev, "Memory squeeze, dropping packet\n"); |
|
2205 dev->stats.rx_dropped++; |
|
2206 } |
|
2207 } |
|
2208 received++; |
|
2209 |
|
2210 cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; |
|
2211 RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); |
|
2212 |
|
2213 rtl8139_isr_ack(tp); |
|
2214 } |
|
2215 |
|
2216 if (unlikely(!received || rx_size == 0xfff0)) |
|
2217 rtl8139_isr_ack(tp); |
|
2218 |
|
2219 pr_debug("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x," |
|
2220 " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx, |
|
2221 RTL_R16 (RxBufAddr), |
|
2222 RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); |
|
2223 |
|
2224 tp->cur_rx = cur_rx; |
|
2225 |
|
2226 /* |
|
2227 * The receive buffer should be mostly empty. |
|
2228 * Tell NAPI to reenable the Rx irq. |
|
2229 */ |
|
2230 if (tp->fifo_copy_timeout) |
|
2231 received = budget; |
|
2232 |
|
2233 out: |
|
2234 return received; |
|
2235 } |
|
2236 |
|
2237 |
|
2238 static void rtl8139_weird_interrupt (struct net_device *dev, |
|
2239 struct rtl8139_private *tp, |
|
2240 void __iomem *ioaddr, |
|
2241 int status, int link_changed) |
|
2242 { |
|
2243 pr_debug("%s: Abnormal interrupt, status %8.8x.\n", |
|
2244 dev->name, status); |
|
2245 |
|
2246 assert (dev != NULL); |
|
2247 assert (tp != NULL); |
|
2248 assert (ioaddr != NULL); |
|
2249 |
|
2250 /* Update the error count. */ |
|
2251 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2252 RTL_W32 (RxMissed, 0); |
|
2253 |
|
2254 if ((status & RxUnderrun) && link_changed && |
|
2255 (tp->drv_flags & HAS_LNK_CHNG)) { |
|
2256 rtl_check_media(dev, 0); |
|
2257 status &= ~RxUnderrun; |
|
2258 } |
|
2259 |
|
2260 if (status & (RxUnderrun | RxErr)) |
|
2261 dev->stats.rx_errors++; |
|
2262 |
|
2263 if (status & PCSTimeout) |
|
2264 dev->stats.rx_length_errors++; |
|
2265 if (status & RxUnderrun) |
|
2266 dev->stats.rx_fifo_errors++; |
|
2267 if (status & PCIErr) { |
|
2268 u16 pci_cmd_status; |
|
2269 pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); |
|
2270 pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); |
|
2271 |
|
2272 pr_err("%s: PCI Bus error %4.4x.\n", |
|
2273 dev->name, pci_cmd_status); |
|
2274 } |
|
2275 } |
|
2276 |
|
2277 static int rtl8139_poll(struct napi_struct *napi, int budget) |
|
2278 { |
|
2279 struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi); |
|
2280 struct net_device *dev = tp->dev; |
|
2281 void __iomem *ioaddr = tp->mmio_addr; |
|
2282 int work_done; |
|
2283 |
|
2284 spin_lock(&tp->rx_lock); |
|
2285 work_done = 0; |
|
2286 if (likely(RTL_R16(IntrStatus) & RxAckBits)) |
|
2287 work_done += rtl8139_rx(dev, tp, budget); |
|
2288 |
|
2289 if (work_done < budget) { |
|
2290 unsigned long flags; |
|
2291 /* |
|
2292 * Order is important since data can get interrupted |
|
2293 * again when we think we are done. |
|
2294 */ |
|
2295 spin_lock_irqsave(&tp->lock, flags); |
|
2296 __napi_complete(napi); |
|
2297 RTL_W16_F(IntrMask, rtl8139_intr_mask); |
|
2298 spin_unlock_irqrestore(&tp->lock, flags); |
|
2299 } |
|
2300 spin_unlock(&tp->rx_lock); |
|
2301 |
|
2302 return work_done; |
|
2303 } |
|
2304 |
|
2305 void ec_poll(struct net_device *dev) |
|
2306 { |
|
2307 rtl8139_interrupt(0, dev); |
|
2308 } |
|
2309 |
|
2310 /* The interrupt handler does all of the Rx thread work and cleans up |
|
2311 after the Tx thread. */ |
|
2312 static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance) |
|
2313 { |
|
2314 struct net_device *dev = (struct net_device *) dev_instance; |
|
2315 struct rtl8139_private *tp = netdev_priv(dev); |
|
2316 void __iomem *ioaddr = tp->mmio_addr; |
|
2317 u16 status, ackstat; |
|
2318 int link_changed = 0; /* avoid bogus "uninit" warning */ |
|
2319 int handled = 0; |
|
2320 |
|
2321 if (tp->ecdev) { |
|
2322 status = RTL_R16 (IntrStatus); |
|
2323 } |
|
2324 else { |
|
2325 spin_lock (&tp->lock); |
|
2326 status = RTL_R16 (IntrStatus); |
|
2327 |
|
2328 /* shared irq? */ |
|
2329 if (unlikely((status & rtl8139_intr_mask) == 0)) |
|
2330 goto out; |
|
2331 } |
|
2332 |
|
2333 handled = 1; |
|
2334 |
|
2335 /* h/w no longer present (hotplug?) or major error, bail */ |
|
2336 if (unlikely(status == 0xFFFF)) |
|
2337 goto out; |
|
2338 |
|
2339 if (!tp->ecdev) { |
|
2340 /* close possible race's with dev_close */ |
|
2341 if (unlikely(!netif_running(dev))) { |
|
2342 RTL_W16 (IntrMask, 0); |
|
2343 goto out; |
|
2344 } |
|
2345 } |
|
2346 |
|
2347 /* Acknowledge all of the current interrupt sources ASAP, but |
|
2348 an first get an additional status bit from CSCR. */ |
|
2349 if (unlikely(status & RxUnderrun)) |
|
2350 link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; |
|
2351 |
|
2352 ackstat = status & ~(RxAckBits | TxErr); |
|
2353 if (ackstat) |
|
2354 RTL_W16 (IntrStatus, ackstat); |
|
2355 |
|
2356 /* Receive packets are processed by poll routine. |
|
2357 If not running start it now. */ |
|
2358 if (status & RxAckBits){ |
|
2359 if (tp->ecdev) { |
|
2360 /* EtherCAT device: Just receive all frames */ |
|
2361 rtl8139_rx(dev, tp, 100); // FIXME |
|
2362 } else { |
|
2363 /* Mark for polling */ |
|
2364 if (napi_schedule_prep(&tp->napi)) { |
|
2365 RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); |
|
2366 __napi_schedule(&tp->napi); |
|
2367 } |
|
2368 } |
|
2369 } |
|
2370 |
|
2371 /* Check uncommon events with one test. */ |
|
2372 if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) |
|
2373 rtl8139_weird_interrupt (dev, tp, ioaddr, |
|
2374 status, link_changed); |
|
2375 |
|
2376 if (status & (TxOK | TxErr)) { |
|
2377 rtl8139_tx_interrupt (dev, tp, ioaddr); |
|
2378 if (status & TxErr) |
|
2379 RTL_W16 (IntrStatus, TxErr); |
|
2380 } |
|
2381 out: |
|
2382 if (!tp->ecdev) { |
|
2383 spin_unlock (&tp->lock); |
|
2384 } |
|
2385 |
|
2386 pr_debug("%s: exiting interrupt, intr_status=%#4.4x.\n", |
|
2387 dev->name, RTL_R16 (IntrStatus)); |
|
2388 return IRQ_RETVAL(handled); |
|
2389 } |
|
2390 |
|
2391 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
2392 /* |
|
2393 * Polling receive - used by netconsole and other diagnostic tools |
|
2394 * to allow network i/o with interrupts disabled. |
|
2395 */ |
|
2396 static void rtl8139_poll_controller(struct net_device *dev) |
|
2397 { |
|
2398 disable_irq_nosync(dev->irq); |
|
2399 rtl8139_interrupt(dev->irq, dev); |
|
2400 enable_irq(dev->irq); |
|
2401 } |
|
2402 #endif |
|
2403 |
|
2404 static int rtl8139_set_mac_address(struct net_device *dev, void *p) |
|
2405 { |
|
2406 struct rtl8139_private *tp = netdev_priv(dev); |
|
2407 void __iomem *ioaddr = tp->mmio_addr; |
|
2408 struct sockaddr *addr = p; |
|
2409 |
|
2410 if (!is_valid_ether_addr(addr->sa_data)) |
|
2411 return -EADDRNOTAVAIL; |
|
2412 |
|
2413 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
|
2414 |
|
2415 spin_lock_irq(&tp->lock); |
|
2416 |
|
2417 RTL_W8_F(Cfg9346, Cfg9346_Unlock); |
|
2418 RTL_W32_F(MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0))); |
|
2419 RTL_W32_F(MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4))); |
|
2420 RTL_W8_F(Cfg9346, Cfg9346_Lock); |
|
2421 |
|
2422 spin_unlock_irq(&tp->lock); |
|
2423 |
|
2424 return 0; |
|
2425 } |
|
2426 |
|
2427 static int rtl8139_close (struct net_device *dev) |
|
2428 { |
|
2429 struct rtl8139_private *tp = netdev_priv(dev); |
|
2430 void __iomem *ioaddr = tp->mmio_addr; |
|
2431 unsigned long flags; |
|
2432 |
|
2433 if (tp->ecdev) { |
|
2434 /* Stop the chip's Tx and Rx DMA processes. */ |
|
2435 RTL_W8 (ChipCmd, 0); |
|
2436 |
|
2437 /* Disable interrupts by clearing the interrupt mask. */ |
|
2438 RTL_W16 (IntrMask, 0); |
|
2439 |
|
2440 /* Update the error counts. */ |
|
2441 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2442 RTL_W32 (RxMissed, 0); |
|
2443 } else { |
|
2444 netif_stop_queue(dev); |
|
2445 napi_disable(&tp->napi); |
|
2446 |
|
2447 if (netif_msg_ifdown(tp)) |
|
2448 pr_debug("%s: Shutting down ethercard, status was 0x%4.4x.\n", |
|
2449 dev->name, RTL_R16 (IntrStatus)); |
|
2450 |
|
2451 spin_lock_irqsave (&tp->lock, flags); |
|
2452 |
|
2453 /* Stop the chip's Tx and Rx DMA processes. */ |
|
2454 RTL_W8 (ChipCmd, 0); |
|
2455 |
|
2456 /* Disable interrupts by clearing the interrupt mask. */ |
|
2457 RTL_W16 (IntrMask, 0); |
|
2458 |
|
2459 /* Update the error counts. */ |
|
2460 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2461 RTL_W32 (RxMissed, 0); |
|
2462 |
|
2463 spin_unlock_irqrestore (&tp->lock, flags); |
|
2464 |
|
2465 free_irq (dev->irq, dev); |
|
2466 } |
|
2467 |
|
2468 rtl8139_tx_clear (tp); |
|
2469 |
|
2470 dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
|
2471 tp->rx_ring, tp->rx_ring_dma); |
|
2472 dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
|
2473 tp->tx_bufs, tp->tx_bufs_dma); |
|
2474 tp->rx_ring = NULL; |
|
2475 tp->tx_bufs = NULL; |
|
2476 |
|
2477 /* Green! Put the chip in low-power mode. */ |
|
2478 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
2479 |
|
2480 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
2481 RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
|
2482 |
|
2483 return 0; |
|
2484 } |
|
2485 |
|
2486 |
|
2487 /* Get the ethtool Wake-on-LAN settings. Assumes that wol points to |
|
2488 kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and |
|
2489 other threads or interrupts aren't messing with the 8139. */ |
|
2490 static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
|
2491 { |
|
2492 struct rtl8139_private *tp = netdev_priv(dev); |
|
2493 void __iomem *ioaddr = tp->mmio_addr; |
|
2494 |
|
2495 spin_lock_irq(&tp->lock); |
|
2496 if (rtl_chip_info[tp->chipset].flags & HasLWake) { |
|
2497 u8 cfg3 = RTL_R8 (Config3); |
|
2498 u8 cfg5 = RTL_R8 (Config5); |
|
2499 |
|
2500 wol->supported = WAKE_PHY | WAKE_MAGIC |
|
2501 | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; |
|
2502 |
|
2503 wol->wolopts = 0; |
|
2504 if (cfg3 & Cfg3_LinkUp) |
|
2505 wol->wolopts |= WAKE_PHY; |
|
2506 if (cfg3 & Cfg3_Magic) |
|
2507 wol->wolopts |= WAKE_MAGIC; |
|
2508 /* (KON)FIXME: See how netdev_set_wol() handles the |
|
2509 following constants. */ |
|
2510 if (cfg5 & Cfg5_UWF) |
|
2511 wol->wolopts |= WAKE_UCAST; |
|
2512 if (cfg5 & Cfg5_MWF) |
|
2513 wol->wolopts |= WAKE_MCAST; |
|
2514 if (cfg5 & Cfg5_BWF) |
|
2515 wol->wolopts |= WAKE_BCAST; |
|
2516 } |
|
2517 spin_unlock_irq(&tp->lock); |
|
2518 } |
|
2519 |
|
2520 |
|
2521 /* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes |
|
2522 that wol points to kernel memory and other threads or interrupts |
|
2523 aren't messing with the 8139. */ |
|
2524 static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
|
2525 { |
|
2526 struct rtl8139_private *tp = netdev_priv(dev); |
|
2527 void __iomem *ioaddr = tp->mmio_addr; |
|
2528 u32 support; |
|
2529 u8 cfg3, cfg5; |
|
2530 |
|
2531 support = ((rtl_chip_info[tp->chipset].flags & HasLWake) |
|
2532 ? (WAKE_PHY | WAKE_MAGIC |
|
2533 | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) |
|
2534 : 0); |
|
2535 if (wol->wolopts & ~support) |
|
2536 return -EINVAL; |
|
2537 |
|
2538 spin_lock_irq(&tp->lock); |
|
2539 cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); |
|
2540 if (wol->wolopts & WAKE_PHY) |
|
2541 cfg3 |= Cfg3_LinkUp; |
|
2542 if (wol->wolopts & WAKE_MAGIC) |
|
2543 cfg3 |= Cfg3_Magic; |
|
2544 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
2545 RTL_W8 (Config3, cfg3); |
|
2546 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
2547 |
|
2548 cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); |
|
2549 /* (KON)FIXME: These are untested. We may have to set the |
|
2550 CRC0, Wakeup0 and LSBCRC0 registers too, but I have no |
|
2551 documentation. */ |
|
2552 if (wol->wolopts & WAKE_UCAST) |
|
2553 cfg5 |= Cfg5_UWF; |
|
2554 if (wol->wolopts & WAKE_MCAST) |
|
2555 cfg5 |= Cfg5_MWF; |
|
2556 if (wol->wolopts & WAKE_BCAST) |
|
2557 cfg5 |= Cfg5_BWF; |
|
2558 RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ |
|
2559 spin_unlock_irq(&tp->lock); |
|
2560 |
|
2561 return 0; |
|
2562 } |
|
2563 |
|
2564 static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
|
2565 { |
|
2566 struct rtl8139_private *tp = netdev_priv(dev); |
|
2567 strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); |
|
2568 strlcpy(info->version, DRV_VERSION, sizeof(info->version)); |
|
2569 strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info)); |
|
2570 info->regdump_len = tp->regs_len; |
|
2571 } |
|
2572 |
|
2573 static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
|
2574 { |
|
2575 struct rtl8139_private *tp = netdev_priv(dev); |
|
2576 spin_lock_irq(&tp->lock); |
|
2577 mii_ethtool_gset(&tp->mii, cmd); |
|
2578 spin_unlock_irq(&tp->lock); |
|
2579 return 0; |
|
2580 } |
|
2581 |
|
2582 static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
|
2583 { |
|
2584 struct rtl8139_private *tp = netdev_priv(dev); |
|
2585 int rc; |
|
2586 spin_lock_irq(&tp->lock); |
|
2587 rc = mii_ethtool_sset(&tp->mii, cmd); |
|
2588 spin_unlock_irq(&tp->lock); |
|
2589 return rc; |
|
2590 } |
|
2591 |
|
2592 static int rtl8139_nway_reset(struct net_device *dev) |
|
2593 { |
|
2594 struct rtl8139_private *tp = netdev_priv(dev); |
|
2595 return mii_nway_restart(&tp->mii); |
|
2596 } |
|
2597 |
|
2598 static u32 rtl8139_get_link(struct net_device *dev) |
|
2599 { |
|
2600 struct rtl8139_private *tp = netdev_priv(dev); |
|
2601 return mii_link_ok(&tp->mii); |
|
2602 } |
|
2603 |
|
2604 static u32 rtl8139_get_msglevel(struct net_device *dev) |
|
2605 { |
|
2606 struct rtl8139_private *tp = netdev_priv(dev); |
|
2607 return tp->msg_enable; |
|
2608 } |
|
2609 |
|
2610 static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) |
|
2611 { |
|
2612 struct rtl8139_private *tp = netdev_priv(dev); |
|
2613 tp->msg_enable = datum; |
|
2614 } |
|
2615 |
|
2616 static int rtl8139_get_regs_len(struct net_device *dev) |
|
2617 { |
|
2618 struct rtl8139_private *tp; |
|
2619 /* TODO: we are too slack to do reg dumping for pio, for now */ |
|
2620 if (use_io) |
|
2621 return 0; |
|
2622 tp = netdev_priv(dev); |
|
2623 return tp->regs_len; |
|
2624 } |
|
2625 |
|
2626 static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
|
2627 { |
|
2628 struct rtl8139_private *tp; |
|
2629 |
|
2630 /* TODO: we are too slack to do reg dumping for pio, for now */ |
|
2631 if (use_io) |
|
2632 return; |
|
2633 tp = netdev_priv(dev); |
|
2634 |
|
2635 regs->version = RTL_REGS_VER; |
|
2636 |
|
2637 spin_lock_irq(&tp->lock); |
|
2638 memcpy_fromio(regbuf, tp->mmio_addr, regs->len); |
|
2639 spin_unlock_irq(&tp->lock); |
|
2640 } |
|
2641 |
|
2642 static int rtl8139_get_sset_count(struct net_device *dev, int sset) |
|
2643 { |
|
2644 switch (sset) { |
|
2645 case ETH_SS_STATS: |
|
2646 return RTL_NUM_STATS; |
|
2647 default: |
|
2648 return -EOPNOTSUPP; |
|
2649 } |
|
2650 } |
|
2651 |
|
2652 static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) |
|
2653 { |
|
2654 struct rtl8139_private *tp = netdev_priv(dev); |
|
2655 |
|
2656 data[0] = tp->xstats.early_rx; |
|
2657 data[1] = tp->xstats.tx_buf_mapped; |
|
2658 data[2] = tp->xstats.tx_timeouts; |
|
2659 data[3] = tp->xstats.rx_lost_in_ring; |
|
2660 } |
|
2661 |
|
2662 static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
|
2663 { |
|
2664 memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); |
|
2665 } |
|
2666 |
|
2667 static const struct ethtool_ops rtl8139_ethtool_ops = { |
|
2668 .get_drvinfo = rtl8139_get_drvinfo, |
|
2669 .get_settings = rtl8139_get_settings, |
|
2670 .set_settings = rtl8139_set_settings, |
|
2671 .get_regs_len = rtl8139_get_regs_len, |
|
2672 .get_regs = rtl8139_get_regs, |
|
2673 .nway_reset = rtl8139_nway_reset, |
|
2674 .get_link = rtl8139_get_link, |
|
2675 .get_msglevel = rtl8139_get_msglevel, |
|
2676 .set_msglevel = rtl8139_set_msglevel, |
|
2677 .get_wol = rtl8139_get_wol, |
|
2678 .set_wol = rtl8139_set_wol, |
|
2679 .get_strings = rtl8139_get_strings, |
|
2680 .get_sset_count = rtl8139_get_sset_count, |
|
2681 .get_ethtool_stats = rtl8139_get_ethtool_stats, |
|
2682 }; |
|
2683 |
|
2684 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
|
2685 { |
|
2686 struct rtl8139_private *tp = netdev_priv(dev); |
|
2687 int rc; |
|
2688 |
|
2689 if (tp->ecdev || !netif_running(dev)) |
|
2690 return -EINVAL; |
|
2691 |
|
2692 spin_lock_irq(&tp->lock); |
|
2693 rc = generic_mii_ioctl(&tp->mii, if_mii(rq), cmd, NULL); |
|
2694 spin_unlock_irq(&tp->lock); |
|
2695 |
|
2696 return rc; |
|
2697 } |
|
2698 |
|
2699 |
|
2700 static struct rtnl_link_stats64 * |
|
2701 rtl8139_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) |
|
2702 { |
|
2703 struct rtl8139_private *tp = netdev_priv(dev); |
|
2704 void __iomem *ioaddr = tp->mmio_addr; |
|
2705 unsigned long flags; |
|
2706 unsigned int start; |
|
2707 |
|
2708 if (tp->ecdev || netif_running(dev)) { |
|
2709 spin_lock_irqsave (&tp->lock, flags); |
|
2710 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2711 RTL_W32 (RxMissed, 0); |
|
2712 spin_unlock_irqrestore (&tp->lock, flags); |
|
2713 } |
|
2714 |
|
2715 netdev_stats_to_stats64(stats, &dev->stats); |
|
2716 |
|
2717 do { |
|
2718 start = u64_stats_fetch_begin_bh(&tp->rx_stats.syncp); |
|
2719 stats->rx_packets = tp->rx_stats.packets; |
|
2720 stats->rx_bytes = tp->rx_stats.bytes; |
|
2721 } while (u64_stats_fetch_retry_bh(&tp->rx_stats.syncp, start)); |
|
2722 |
|
2723 do { |
|
2724 start = u64_stats_fetch_begin_bh(&tp->tx_stats.syncp); |
|
2725 stats->tx_packets = tp->tx_stats.packets; |
|
2726 stats->tx_bytes = tp->tx_stats.bytes; |
|
2727 } while (u64_stats_fetch_retry_bh(&tp->tx_stats.syncp, start)); |
|
2728 |
|
2729 return stats; |
|
2730 } |
|
2731 |
|
2732 /* Set or clear the multicast filter for this adaptor. |
|
2733 This routine is not state sensitive and need not be SMP locked. */ |
|
2734 |
|
2735 static void __set_rx_mode (struct net_device *dev) |
|
2736 { |
|
2737 struct rtl8139_private *tp = netdev_priv(dev); |
|
2738 void __iomem *ioaddr = tp->mmio_addr; |
|
2739 u32 mc_filter[2]; /* Multicast hash filter */ |
|
2740 int rx_mode; |
|
2741 u32 tmp; |
|
2742 |
|
2743 netdev_dbg(dev, "rtl8139_set_rx_mode(%04x) done -- Rx config %08x\n", |
|
2744 dev->flags, RTL_R32(RxConfig)); |
|
2745 |
|
2746 /* Note: do not reorder, GCC is clever about common statements. */ |
|
2747 if (dev->flags & IFF_PROMISC) { |
|
2748 rx_mode = |
|
2749 AcceptBroadcast | AcceptMulticast | AcceptMyPhys | |
|
2750 AcceptAllPhys; |
|
2751 mc_filter[1] = mc_filter[0] = 0xffffffff; |
|
2752 } else if ((netdev_mc_count(dev) > multicast_filter_limit) || |
|
2753 (dev->flags & IFF_ALLMULTI)) { |
|
2754 /* Too many to filter perfectly -- accept all multicasts. */ |
|
2755 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; |
|
2756 mc_filter[1] = mc_filter[0] = 0xffffffff; |
|
2757 } else { |
|
2758 struct netdev_hw_addr *ha; |
|
2759 rx_mode = AcceptBroadcast | AcceptMyPhys; |
|
2760 mc_filter[1] = mc_filter[0] = 0; |
|
2761 netdev_for_each_mc_addr(ha, dev) { |
|
2762 int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26; |
|
2763 |
|
2764 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); |
|
2765 rx_mode |= AcceptMulticast; |
|
2766 } |
|
2767 } |
|
2768 |
|
2769 if (dev->features & NETIF_F_RXALL) |
|
2770 rx_mode |= (AcceptErr | AcceptRunt); |
|
2771 |
|
2772 /* We can safely update without stopping the chip. */ |
|
2773 tmp = rtl8139_rx_config | rx_mode; |
|
2774 if (tp->rx_config != tmp) { |
|
2775 RTL_W32_F (RxConfig, tmp); |
|
2776 tp->rx_config = tmp; |
|
2777 } |
|
2778 RTL_W32_F (MAR0 + 0, mc_filter[0]); |
|
2779 RTL_W32_F (MAR0 + 4, mc_filter[1]); |
|
2780 } |
|
2781 |
|
2782 static void rtl8139_set_rx_mode (struct net_device *dev) |
|
2783 { |
|
2784 unsigned long flags; |
|
2785 struct rtl8139_private *tp = netdev_priv(dev); |
|
2786 |
|
2787 spin_lock_irqsave (&tp->lock, flags); |
|
2788 __set_rx_mode(dev); |
|
2789 spin_unlock_irqrestore (&tp->lock, flags); |
|
2790 } |
|
2791 |
|
2792 #ifdef CONFIG_PM |
|
2793 |
|
2794 static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) |
|
2795 { |
|
2796 struct net_device *dev = pci_get_drvdata (pdev); |
|
2797 struct rtl8139_private *tp = netdev_priv(dev); |
|
2798 void __iomem *ioaddr = tp->mmio_addr; |
|
2799 unsigned long flags; |
|
2800 |
|
2801 pci_save_state (pdev); |
|
2802 |
|
2803 if (tp->ecdev || !netif_running (dev)) |
|
2804 return 0; |
|
2805 |
|
2806 netif_device_detach (dev); |
|
2807 |
|
2808 spin_lock_irqsave (&tp->lock, flags); |
|
2809 |
|
2810 /* Disable interrupts, stop Tx and Rx. */ |
|
2811 RTL_W16 (IntrMask, 0); |
|
2812 RTL_W8 (ChipCmd, 0); |
|
2813 |
|
2814 /* Update the error counts. */ |
|
2815 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2816 RTL_W32 (RxMissed, 0); |
|
2817 |
|
2818 spin_unlock_irqrestore (&tp->lock, flags); |
|
2819 |
|
2820 pci_set_power_state (pdev, PCI_D3hot); |
|
2821 |
|
2822 return 0; |
|
2823 } |
|
2824 |
|
2825 |
|
2826 static int rtl8139_resume (struct pci_dev *pdev) |
|
2827 { |
|
2828 struct net_device *dev = pci_get_drvdata (pdev); |
|
2829 struct rtl8139_private *tp = netdev_priv(dev); |
|
2830 |
|
2831 pci_restore_state (pdev); |
|
2832 if (tp->ecdev || !netif_running (dev)) |
|
2833 return 0; |
|
2834 pci_set_power_state (pdev, PCI_D0); |
|
2835 rtl8139_init_ring (dev); |
|
2836 rtl8139_hw_start (dev); |
|
2837 netif_device_attach (dev); |
|
2838 return 0; |
|
2839 } |
|
2840 |
|
2841 #endif /* CONFIG_PM */ |
|
2842 |
|
2843 |
|
2844 static struct pci_driver rtl8139_pci_driver = { |
|
2845 .name = DRV_NAME, |
|
2846 .id_table = rtl8139_pci_tbl, |
|
2847 .probe = rtl8139_init_one, |
|
2848 .remove = __devexit_p(rtl8139_remove_one), |
|
2849 #ifdef CONFIG_PM |
|
2850 .suspend = rtl8139_suspend, |
|
2851 .resume = rtl8139_resume, |
|
2852 #endif /* CONFIG_PM */ |
|
2853 }; |
|
2854 |
|
2855 |
|
2856 static int __init rtl8139_init_module (void) |
|
2857 { |
|
2858 /* when we're a module, we always print a version message, |
|
2859 * even if no 8139 board is found. |
|
2860 */ |
|
2861 #ifdef MODULE |
|
2862 pr_info(RTL8139_DRIVER_NAME "\n"); |
|
2863 #endif |
|
2864 |
|
2865 return pci_register_driver(&rtl8139_pci_driver); |
|
2866 } |
|
2867 |
|
2868 |
|
2869 static void __exit rtl8139_cleanup_module (void) |
|
2870 { |
|
2871 pci_unregister_driver (&rtl8139_pci_driver); |
|
2872 } |
|
2873 |
|
2874 |
|
2875 module_init(rtl8139_init_module); |
|
2876 module_exit(rtl8139_cleanup_module); |