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1 /* |
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2 |
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3 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux. |
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4 |
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5 Maintained by Jeff Garzik <jgarzik@pobox.com> |
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6 Copyright 2000-2002 Jeff Garzik |
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7 |
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8 Much code comes from Donald Becker's rtl8139.c driver, |
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9 versions 1.13 and older. This driver was originally based |
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10 on rtl8139.c version 1.07. Header of rtl8139.c version 1.13: |
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11 |
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12 -----<snip>----- |
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13 |
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14 Written 1997-2001 by Donald Becker. |
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15 This software may be used and distributed according to the |
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16 terms of the GNU General Public License (GPL), incorporated |
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17 herein by reference. Drivers based on or derived from this |
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18 code fall under the GPL and must retain the authorship, |
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19 copyright and license notice. This file is not a complete |
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20 program and may only be used when the entire operating |
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21 system is licensed under the GPL. |
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22 |
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23 This driver is for boards based on the RTL8129 and RTL8139 |
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24 PCI ethernet chips. |
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25 |
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26 The author may be reached as becker@scyld.com, or C/O Scyld |
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27 Computing Corporation 410 Severn Ave., Suite 210 Annapolis |
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28 MD 21403 |
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29 |
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30 Support and updates available at |
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31 http://www.scyld.com/network/rtl8139.html |
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32 |
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33 Twister-tuning table provided by Kinston |
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34 <shangh@realtek.com.tw>. |
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35 |
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36 -----<snip>----- |
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37 |
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38 This software may be used and distributed according to the terms |
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39 of the GNU General Public License, incorporated herein by reference. |
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40 |
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41 Contributors: |
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42 |
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43 Donald Becker - he wrote the original driver, kudos to him! |
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44 (but please don't e-mail him for support, this isn't his driver) |
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45 |
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46 Tigran Aivazian - bug fixes, skbuff free cleanup |
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47 |
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48 Martin Mares - suggestions for PCI cleanup |
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49 |
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50 David S. Miller - PCI DMA and softnet updates |
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51 |
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52 Ernst Gill - fixes ported from BSD driver |
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53 |
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54 Daniel Kobras - identified specific locations of |
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55 posted MMIO write bugginess |
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56 |
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57 Gerard Sharp - bug fix, testing and feedback |
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58 |
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59 David Ford - Rx ring wrap fix |
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60 |
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61 Dan DeMaggio - swapped RTL8139 cards with me, and allowed me |
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62 to find and fix a crucial bug on older chipsets. |
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63 |
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64 Donald Becker/Chris Butterworth/Marcus Westergren - |
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65 Noticed various Rx packet size-related buglets. |
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66 |
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67 Santiago Garcia Mantinan - testing and feedback |
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68 |
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69 Jens David - 2.2.x kernel backports |
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70 |
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71 Martin Dennett - incredibly helpful insight on undocumented |
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72 features of the 8139 chips |
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73 |
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74 Jean-Jacques Michel - bug fix |
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75 |
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76 Tobias Ringström - Rx interrupt status checking suggestion |
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77 |
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78 Andrew Morton - Clear blocked signals, avoid |
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79 buffer overrun setting current->comm. |
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80 |
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81 Kalle Olavi Niemitalo - Wake-on-LAN ioctls |
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82 |
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83 Robert Kuebel - Save kernel thread from dying on any signal. |
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84 |
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85 Submitting bug reports: |
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86 |
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87 "rtl8139-diag -mmmaaavvveefN" output |
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88 enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log |
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89 |
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90 */ |
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91 |
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92 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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93 |
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94 #define DRV_NAME "8139too" |
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95 #define DRV_VERSION "0.9.28" |
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96 |
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97 |
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98 #include <linux/module.h> |
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99 #include <linux/kernel.h> |
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100 #include <linux/compiler.h> |
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101 #include <linux/pci.h> |
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102 #include <linux/init.h> |
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103 #include <linux/netdevice.h> |
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104 #include <linux/etherdevice.h> |
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105 #include <linux/rtnetlink.h> |
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106 #include <linux/delay.h> |
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107 #include <linux/ethtool.h> |
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108 #include <linux/mii.h> |
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109 #include <linux/completion.h> |
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110 #include <linux/crc32.h> |
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111 #include <linux/io.h> |
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112 #include <linux/uaccess.h> |
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113 #include <linux/gfp.h> |
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114 #include <asm/irq.h> |
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115 |
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116 #define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION |
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117 |
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118 /* Default Message level */ |
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119 #define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ |
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120 NETIF_MSG_PROBE | \ |
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121 NETIF_MSG_LINK) |
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122 |
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123 |
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124 /* define to 1, 2 or 3 to enable copious debugging info */ |
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125 #define RTL8139_DEBUG 0 |
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126 |
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127 /* define to 1 to disable lightweight runtime debugging checks */ |
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128 #undef RTL8139_NDEBUG |
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129 |
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130 |
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131 #ifdef RTL8139_NDEBUG |
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132 # define assert(expr) do {} while (0) |
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133 #else |
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134 # define assert(expr) \ |
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135 if (unlikely(!(expr))) { \ |
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136 pr_err("Assertion failed! %s,%s,%s,line=%d\n", \ |
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137 #expr, __FILE__, __func__, __LINE__); \ |
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138 } |
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139 #endif |
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140 |
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141 |
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142 /* A few user-configurable values. */ |
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143 /* media options */ |
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144 #define MAX_UNITS 8 |
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145 static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
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146 static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
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147 |
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148 /* Whether to use MMIO or PIO. Default to MMIO. */ |
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149 #ifdef CONFIG_8139TOO_PIO |
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150 static int use_io = 1; |
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151 #else |
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152 static int use_io = 0; |
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153 #endif |
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154 |
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155 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
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156 The RTL chips use a 64 element hash table based on the Ethernet CRC. */ |
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157 static int multicast_filter_limit = 32; |
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158 |
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159 /* bitmapped message enable number */ |
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160 static int debug = -1; |
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161 |
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162 /* |
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163 * Receive ring size |
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164 * Warning: 64K ring has hardware issues and may lock up. |
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165 */ |
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166 #if defined(CONFIG_SH_DREAMCAST) |
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167 #define RX_BUF_IDX 0 /* 8K ring */ |
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168 #else |
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169 #define RX_BUF_IDX 2 /* 32K ring */ |
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170 #endif |
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171 #define RX_BUF_LEN (8192 << RX_BUF_IDX) |
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172 #define RX_BUF_PAD 16 |
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173 #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ |
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174 |
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175 #if RX_BUF_LEN == 65536 |
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176 #define RX_BUF_TOT_LEN RX_BUF_LEN |
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177 #else |
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178 #define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) |
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179 #endif |
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180 |
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181 /* Number of Tx descriptor registers. */ |
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182 #define NUM_TX_DESC 4 |
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183 |
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184 /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ |
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185 #define MAX_ETH_FRAME_SIZE 1536 |
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186 |
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187 /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ |
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188 #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE |
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189 #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) |
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190 |
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191 /* PCI Tuning Parameters |
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192 Threshold is bytes transferred to chip before transmission starts. */ |
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193 #define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ |
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194 |
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195 /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ |
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196 #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ |
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197 #define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ |
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198 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ |
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199 #define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ |
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200 |
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201 /* Operational parameters that usually are not changed. */ |
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202 /* Time in jiffies before concluding the transmitter is hung. */ |
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203 #define TX_TIMEOUT (6*HZ) |
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204 |
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205 |
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206 enum { |
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207 HAS_MII_XCVR = 0x010000, |
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208 HAS_CHIP_XCVR = 0x020000, |
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209 HAS_LNK_CHNG = 0x040000, |
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210 }; |
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211 |
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212 #define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ |
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213 #define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ |
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214 #define RTL_MIN_IO_SIZE 0x80 |
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215 #define RTL8139B_IO_SIZE 256 |
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216 |
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217 #define RTL8129_CAPS HAS_MII_XCVR |
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218 #define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG) |
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219 |
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220 typedef enum { |
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221 RTL8139 = 0, |
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222 RTL8129, |
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223 } board_t; |
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224 |
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225 |
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226 /* indexed by board_t, above */ |
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227 static const struct { |
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228 const char *name; |
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229 u32 hw_flags; |
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230 } board_info[] __devinitdata = { |
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231 { "RealTek RTL8139", RTL8139_CAPS }, |
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232 { "RealTek RTL8129", RTL8129_CAPS }, |
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233 }; |
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234 |
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235 |
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236 static DEFINE_PCI_DEVICE_TABLE(rtl8139_pci_tbl) = { |
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237 {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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238 {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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239 {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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240 {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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241 {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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242 {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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243 {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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244 {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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245 {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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246 {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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247 {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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248 {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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249 {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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250 {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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251 {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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252 {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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253 {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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254 {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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255 {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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256 |
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257 #ifdef CONFIG_SH_SECUREEDGE5410 |
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258 /* Bogus 8139 silicon reports 8129 without external PROM :-( */ |
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259 {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
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260 #endif |
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261 #ifdef CONFIG_8139TOO_8129 |
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262 {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, |
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263 #endif |
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264 |
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265 /* some crazy cards report invalid vendor ids like |
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266 * 0x0001 here. The other ids are valid and constant, |
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267 * so we simply don't match on the main vendor id. |
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268 */ |
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269 {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, |
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270 {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, |
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271 {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, |
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272 |
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273 {0,} |
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274 }; |
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275 MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); |
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276 |
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277 static struct { |
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278 const char str[ETH_GSTRING_LEN]; |
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279 } ethtool_stats_keys[] = { |
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280 { "early_rx" }, |
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281 { "tx_buf_mapped" }, |
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282 { "tx_timeouts" }, |
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283 { "rx_lost_in_ring" }, |
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284 }; |
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285 |
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286 /* The rest of these values should never change. */ |
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287 |
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288 /* Symbolic offsets to registers. */ |
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289 enum RTL8139_registers { |
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290 MAC0 = 0, /* Ethernet hardware address. */ |
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291 MAR0 = 8, /* Multicast filter. */ |
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292 TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ |
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293 TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ |
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294 RxBuf = 0x30, |
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295 ChipCmd = 0x37, |
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296 RxBufPtr = 0x38, |
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297 RxBufAddr = 0x3A, |
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298 IntrMask = 0x3C, |
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299 IntrStatus = 0x3E, |
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300 TxConfig = 0x40, |
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301 RxConfig = 0x44, |
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302 Timer = 0x48, /* A general-purpose counter. */ |
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303 RxMissed = 0x4C, /* 24 bits valid, write clears. */ |
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304 Cfg9346 = 0x50, |
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305 Config0 = 0x51, |
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306 Config1 = 0x52, |
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307 TimerInt = 0x54, |
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308 MediaStatus = 0x58, |
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309 Config3 = 0x59, |
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310 Config4 = 0x5A, /* absent on RTL-8139A */ |
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311 HltClk = 0x5B, |
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312 MultiIntr = 0x5C, |
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313 TxSummary = 0x60, |
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314 BasicModeCtrl = 0x62, |
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315 BasicModeStatus = 0x64, |
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316 NWayAdvert = 0x66, |
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317 NWayLPAR = 0x68, |
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318 NWayExpansion = 0x6A, |
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319 /* Undocumented registers, but required for proper operation. */ |
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320 FIFOTMS = 0x70, /* FIFO Control and test. */ |
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321 CSCR = 0x74, /* Chip Status and Configuration Register. */ |
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322 PARA78 = 0x78, |
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323 FlashReg = 0xD4, /* Communication with Flash ROM, four bytes. */ |
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324 PARA7c = 0x7c, /* Magic transceiver parameter register. */ |
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325 Config5 = 0xD8, /* absent on RTL-8139A */ |
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326 }; |
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327 |
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328 enum ClearBitMasks { |
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329 MultiIntrClear = 0xF000, |
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330 ChipCmdClear = 0xE2, |
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331 Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), |
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332 }; |
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333 |
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334 enum ChipCmdBits { |
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335 CmdReset = 0x10, |
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336 CmdRxEnb = 0x08, |
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337 CmdTxEnb = 0x04, |
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338 RxBufEmpty = 0x01, |
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339 }; |
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340 |
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341 /* Interrupt register bits, using my own meaningful names. */ |
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342 enum IntrStatusBits { |
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343 PCIErr = 0x8000, |
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344 PCSTimeout = 0x4000, |
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345 RxFIFOOver = 0x40, |
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346 RxUnderrun = 0x20, |
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347 RxOverflow = 0x10, |
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348 TxErr = 0x08, |
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349 TxOK = 0x04, |
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350 RxErr = 0x02, |
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351 RxOK = 0x01, |
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352 |
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353 RxAckBits = RxFIFOOver | RxOverflow | RxOK, |
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354 }; |
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355 |
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356 enum TxStatusBits { |
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357 TxHostOwns = 0x2000, |
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358 TxUnderrun = 0x4000, |
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359 TxStatOK = 0x8000, |
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360 TxOutOfWindow = 0x20000000, |
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361 TxAborted = 0x40000000, |
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362 TxCarrierLost = 0x80000000, |
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363 }; |
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364 enum RxStatusBits { |
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365 RxMulticast = 0x8000, |
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366 RxPhysical = 0x4000, |
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367 RxBroadcast = 0x2000, |
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368 RxBadSymbol = 0x0020, |
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369 RxRunt = 0x0010, |
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370 RxTooLong = 0x0008, |
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371 RxCRCErr = 0x0004, |
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372 RxBadAlign = 0x0002, |
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373 RxStatusOK = 0x0001, |
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374 }; |
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375 |
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376 /* Bits in RxConfig. */ |
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377 enum rx_mode_bits { |
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378 AcceptErr = 0x20, |
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379 AcceptRunt = 0x10, |
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380 AcceptBroadcast = 0x08, |
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381 AcceptMulticast = 0x04, |
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382 AcceptMyPhys = 0x02, |
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383 AcceptAllPhys = 0x01, |
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384 }; |
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385 |
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386 /* Bits in TxConfig. */ |
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387 enum tx_config_bits { |
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388 /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ |
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389 TxIFGShift = 24, |
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390 TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */ |
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391 TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */ |
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392 TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */ |
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393 TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */ |
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394 |
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395 TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ |
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396 TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */ |
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397 TxClearAbt = (1 << 0), /* Clear abort (WO) */ |
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398 TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */ |
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399 TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */ |
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400 |
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401 TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ |
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402 }; |
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403 |
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404 /* Bits in Config1 */ |
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405 enum Config1Bits { |
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406 Cfg1_PM_Enable = 0x01, |
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407 Cfg1_VPD_Enable = 0x02, |
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408 Cfg1_PIO = 0x04, |
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409 Cfg1_MMIO = 0x08, |
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410 LWAKE = 0x10, /* not on 8139, 8139A */ |
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411 Cfg1_Driver_Load = 0x20, |
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412 Cfg1_LED0 = 0x40, |
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413 Cfg1_LED1 = 0x80, |
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414 SLEEP = (1 << 1), /* only on 8139, 8139A */ |
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415 PWRDN = (1 << 0), /* only on 8139, 8139A */ |
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416 }; |
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417 |
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418 /* Bits in Config3 */ |
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419 enum Config3Bits { |
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420 Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */ |
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421 Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */ |
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422 Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */ |
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423 Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */ |
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424 Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */ |
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425 Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */ |
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426 Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */ |
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427 Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */ |
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428 }; |
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429 |
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430 /* Bits in Config4 */ |
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431 enum Config4Bits { |
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432 LWPTN = (1 << 2), /* not on 8139, 8139A */ |
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433 }; |
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434 |
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435 /* Bits in Config5 */ |
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436 enum Config5Bits { |
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437 Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */ |
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438 Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */ |
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439 Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */ |
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440 Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */ |
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441 Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */ |
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442 Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */ |
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443 Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */ |
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444 }; |
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445 |
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446 enum RxConfigBits { |
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447 /* rx fifo threshold */ |
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448 RxCfgFIFOShift = 13, |
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449 RxCfgFIFONone = (7 << RxCfgFIFOShift), |
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450 |
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451 /* Max DMA burst */ |
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452 RxCfgDMAShift = 8, |
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453 RxCfgDMAUnlimited = (7 << RxCfgDMAShift), |
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454 |
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455 /* rx ring buffer length */ |
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456 RxCfgRcv8K = 0, |
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457 RxCfgRcv16K = (1 << 11), |
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458 RxCfgRcv32K = (1 << 12), |
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459 RxCfgRcv64K = (1 << 11) | (1 << 12), |
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460 |
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461 /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ |
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462 RxNoWrap = (1 << 7), |
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463 }; |
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464 |
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465 /* Twister tuning parameters from RealTek. |
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466 Completely undocumented, but required to tune bad links on some boards. */ |
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467 enum CSCRBits { |
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468 CSCR_LinkOKBit = 0x0400, |
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469 CSCR_LinkChangeBit = 0x0800, |
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470 CSCR_LinkStatusBits = 0x0f000, |
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471 CSCR_LinkDownOffCmd = 0x003c0, |
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472 CSCR_LinkDownCmd = 0x0f3c0, |
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473 }; |
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474 |
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475 enum Cfg9346Bits { |
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476 Cfg9346_Lock = 0x00, |
|
477 Cfg9346_Unlock = 0xC0, |
|
478 }; |
|
479 |
|
480 typedef enum { |
|
481 CH_8139 = 0, |
|
482 CH_8139_K, |
|
483 CH_8139A, |
|
484 CH_8139A_G, |
|
485 CH_8139B, |
|
486 CH_8130, |
|
487 CH_8139C, |
|
488 CH_8100, |
|
489 CH_8100B_8139D, |
|
490 CH_8101, |
|
491 } chip_t; |
|
492 |
|
493 enum chip_flags { |
|
494 HasHltClk = (1 << 0), |
|
495 HasLWake = (1 << 1), |
|
496 }; |
|
497 |
|
498 #define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \ |
|
499 (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22) |
|
500 #define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1) |
|
501 |
|
502 /* directly indexed by chip_t, above */ |
|
503 static const struct { |
|
504 const char *name; |
|
505 u32 version; /* from RTL8139C/RTL8139D docs */ |
|
506 u32 flags; |
|
507 } rtl_chip_info[] = { |
|
508 { "RTL-8139", |
|
509 HW_REVID(1, 0, 0, 0, 0, 0, 0), |
|
510 HasHltClk, |
|
511 }, |
|
512 |
|
513 { "RTL-8139 rev K", |
|
514 HW_REVID(1, 1, 0, 0, 0, 0, 0), |
|
515 HasHltClk, |
|
516 }, |
|
517 |
|
518 { "RTL-8139A", |
|
519 HW_REVID(1, 1, 1, 0, 0, 0, 0), |
|
520 HasHltClk, /* XXX undocumented? */ |
|
521 }, |
|
522 |
|
523 { "RTL-8139A rev G", |
|
524 HW_REVID(1, 1, 1, 0, 0, 1, 0), |
|
525 HasHltClk, /* XXX undocumented? */ |
|
526 }, |
|
527 |
|
528 { "RTL-8139B", |
|
529 HW_REVID(1, 1, 1, 1, 0, 0, 0), |
|
530 HasLWake, |
|
531 }, |
|
532 |
|
533 { "RTL-8130", |
|
534 HW_REVID(1, 1, 1, 1, 1, 0, 0), |
|
535 HasLWake, |
|
536 }, |
|
537 |
|
538 { "RTL-8139C", |
|
539 HW_REVID(1, 1, 1, 0, 1, 0, 0), |
|
540 HasLWake, |
|
541 }, |
|
542 |
|
543 { "RTL-8100", |
|
544 HW_REVID(1, 1, 1, 1, 0, 1, 0), |
|
545 HasLWake, |
|
546 }, |
|
547 |
|
548 { "RTL-8100B/8139D", |
|
549 HW_REVID(1, 1, 1, 0, 1, 0, 1), |
|
550 HasHltClk /* XXX undocumented? */ |
|
551 | HasLWake, |
|
552 }, |
|
553 |
|
554 { "RTL-8101", |
|
555 HW_REVID(1, 1, 1, 0, 1, 1, 1), |
|
556 HasLWake, |
|
557 }, |
|
558 }; |
|
559 |
|
560 struct rtl_extra_stats { |
|
561 unsigned long early_rx; |
|
562 unsigned long tx_buf_mapped; |
|
563 unsigned long tx_timeouts; |
|
564 unsigned long rx_lost_in_ring; |
|
565 }; |
|
566 |
|
567 struct rtl8139_private { |
|
568 void __iomem *mmio_addr; |
|
569 int drv_flags; |
|
570 struct pci_dev *pci_dev; |
|
571 u32 msg_enable; |
|
572 struct napi_struct napi; |
|
573 struct net_device *dev; |
|
574 |
|
575 unsigned char *rx_ring; |
|
576 unsigned int cur_rx; /* RX buf index of next pkt */ |
|
577 dma_addr_t rx_ring_dma; |
|
578 |
|
579 unsigned int tx_flag; |
|
580 unsigned long cur_tx; |
|
581 unsigned long dirty_tx; |
|
582 unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ |
|
583 unsigned char *tx_bufs; /* Tx bounce buffer region. */ |
|
584 dma_addr_t tx_bufs_dma; |
|
585 |
|
586 signed char phys[4]; /* MII device addresses. */ |
|
587 |
|
588 /* Twister tune state. */ |
|
589 char twistie, twist_row, twist_col; |
|
590 |
|
591 unsigned int watchdog_fired : 1; |
|
592 unsigned int default_port : 4; /* Last dev->if_port value. */ |
|
593 unsigned int have_thread : 1; |
|
594 |
|
595 spinlock_t lock; |
|
596 spinlock_t rx_lock; |
|
597 |
|
598 chip_t chipset; |
|
599 u32 rx_config; |
|
600 struct rtl_extra_stats xstats; |
|
601 |
|
602 struct delayed_work thread; |
|
603 |
|
604 struct mii_if_info mii; |
|
605 unsigned int regs_len; |
|
606 unsigned long fifo_copy_timeout; |
|
607 }; |
|
608 |
|
609 MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>"); |
|
610 MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver"); |
|
611 MODULE_LICENSE("GPL"); |
|
612 MODULE_VERSION(DRV_VERSION); |
|
613 |
|
614 module_param(use_io, int, 0); |
|
615 MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO"); |
|
616 module_param(multicast_filter_limit, int, 0); |
|
617 module_param_array(media, int, NULL, 0); |
|
618 module_param_array(full_duplex, int, NULL, 0); |
|
619 module_param(debug, int, 0); |
|
620 MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); |
|
621 MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); |
|
622 MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); |
|
623 MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); |
|
624 |
|
625 static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); |
|
626 static int rtl8139_open (struct net_device *dev); |
|
627 static int mdio_read (struct net_device *dev, int phy_id, int location); |
|
628 static void mdio_write (struct net_device *dev, int phy_id, int location, |
|
629 int val); |
|
630 static void rtl8139_start_thread(struct rtl8139_private *tp); |
|
631 static void rtl8139_tx_timeout (struct net_device *dev); |
|
632 static void rtl8139_init_ring (struct net_device *dev); |
|
633 static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb, |
|
634 struct net_device *dev); |
|
635 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
636 static void rtl8139_poll_controller(struct net_device *dev); |
|
637 #endif |
|
638 static int rtl8139_set_mac_address(struct net_device *dev, void *p); |
|
639 static int rtl8139_poll(struct napi_struct *napi, int budget); |
|
640 static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance); |
|
641 static int rtl8139_close (struct net_device *dev); |
|
642 static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); |
|
643 static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); |
|
644 static void rtl8139_set_rx_mode (struct net_device *dev); |
|
645 static void __set_rx_mode (struct net_device *dev); |
|
646 static void rtl8139_hw_start (struct net_device *dev); |
|
647 static void rtl8139_thread (struct work_struct *work); |
|
648 static void rtl8139_tx_timeout_task(struct work_struct *work); |
|
649 static const struct ethtool_ops rtl8139_ethtool_ops; |
|
650 |
|
651 /* write MMIO register, with flush */ |
|
652 /* Flush avoids rtl8139 bug w/ posted MMIO writes */ |
|
653 #define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) |
|
654 #define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) |
|
655 #define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0) |
|
656 |
|
657 /* write MMIO register */ |
|
658 #define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) |
|
659 #define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) |
|
660 #define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) |
|
661 |
|
662 /* read MMIO register */ |
|
663 #define RTL_R8(reg) ioread8 (ioaddr + (reg)) |
|
664 #define RTL_R16(reg) ioread16 (ioaddr + (reg)) |
|
665 #define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg))) |
|
666 |
|
667 |
|
668 static const u16 rtl8139_intr_mask = |
|
669 PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | |
|
670 TxErr | TxOK | RxErr | RxOK; |
|
671 |
|
672 static const u16 rtl8139_norx_intr_mask = |
|
673 PCIErr | PCSTimeout | RxUnderrun | |
|
674 TxErr | TxOK | RxErr ; |
|
675 |
|
676 #if RX_BUF_IDX == 0 |
|
677 static const unsigned int rtl8139_rx_config = |
|
678 RxCfgRcv8K | RxNoWrap | |
|
679 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
680 (RX_DMA_BURST << RxCfgDMAShift); |
|
681 #elif RX_BUF_IDX == 1 |
|
682 static const unsigned int rtl8139_rx_config = |
|
683 RxCfgRcv16K | RxNoWrap | |
|
684 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
685 (RX_DMA_BURST << RxCfgDMAShift); |
|
686 #elif RX_BUF_IDX == 2 |
|
687 static const unsigned int rtl8139_rx_config = |
|
688 RxCfgRcv32K | RxNoWrap | |
|
689 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
690 (RX_DMA_BURST << RxCfgDMAShift); |
|
691 #elif RX_BUF_IDX == 3 |
|
692 static const unsigned int rtl8139_rx_config = |
|
693 RxCfgRcv64K | |
|
694 (RX_FIFO_THRESH << RxCfgFIFOShift) | |
|
695 (RX_DMA_BURST << RxCfgDMAShift); |
|
696 #else |
|
697 #error "Invalid configuration for 8139_RXBUF_IDX" |
|
698 #endif |
|
699 |
|
700 static const unsigned int rtl8139_tx_config = |
|
701 TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); |
|
702 |
|
703 static void __rtl8139_cleanup_dev (struct net_device *dev) |
|
704 { |
|
705 struct rtl8139_private *tp = netdev_priv(dev); |
|
706 struct pci_dev *pdev; |
|
707 |
|
708 assert (dev != NULL); |
|
709 assert (tp->pci_dev != NULL); |
|
710 pdev = tp->pci_dev; |
|
711 |
|
712 if (tp->mmio_addr) |
|
713 pci_iounmap (pdev, tp->mmio_addr); |
|
714 |
|
715 /* it's ok to call this even if we have no regions to free */ |
|
716 pci_release_regions (pdev); |
|
717 |
|
718 free_netdev(dev); |
|
719 pci_set_drvdata (pdev, NULL); |
|
720 } |
|
721 |
|
722 |
|
723 static void rtl8139_chip_reset (void __iomem *ioaddr) |
|
724 { |
|
725 int i; |
|
726 |
|
727 /* Soft reset the chip. */ |
|
728 RTL_W8 (ChipCmd, CmdReset); |
|
729 |
|
730 /* Check that the chip has finished the reset. */ |
|
731 for (i = 1000; i > 0; i--) { |
|
732 barrier(); |
|
733 if ((RTL_R8 (ChipCmd) & CmdReset) == 0) |
|
734 break; |
|
735 udelay (10); |
|
736 } |
|
737 } |
|
738 |
|
739 |
|
740 static __devinit struct net_device * rtl8139_init_board (struct pci_dev *pdev) |
|
741 { |
|
742 void __iomem *ioaddr; |
|
743 struct net_device *dev; |
|
744 struct rtl8139_private *tp; |
|
745 u8 tmp8; |
|
746 int rc, disable_dev_on_err = 0; |
|
747 unsigned int i; |
|
748 unsigned long pio_start, pio_end, pio_flags, pio_len; |
|
749 unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; |
|
750 u32 version; |
|
751 |
|
752 assert (pdev != NULL); |
|
753 |
|
754 /* dev and priv zeroed in alloc_etherdev */ |
|
755 dev = alloc_etherdev (sizeof (*tp)); |
|
756 if (dev == NULL) { |
|
757 dev_err(&pdev->dev, "Unable to alloc new net device\n"); |
|
758 return ERR_PTR(-ENOMEM); |
|
759 } |
|
760 SET_NETDEV_DEV(dev, &pdev->dev); |
|
761 |
|
762 tp = netdev_priv(dev); |
|
763 tp->pci_dev = pdev; |
|
764 |
|
765 /* enable device (incl. PCI PM wakeup and hotplug setup) */ |
|
766 rc = pci_enable_device (pdev); |
|
767 if (rc) |
|
768 goto err_out; |
|
769 |
|
770 pio_start = pci_resource_start (pdev, 0); |
|
771 pio_end = pci_resource_end (pdev, 0); |
|
772 pio_flags = pci_resource_flags (pdev, 0); |
|
773 pio_len = pci_resource_len (pdev, 0); |
|
774 |
|
775 mmio_start = pci_resource_start (pdev, 1); |
|
776 mmio_end = pci_resource_end (pdev, 1); |
|
777 mmio_flags = pci_resource_flags (pdev, 1); |
|
778 mmio_len = pci_resource_len (pdev, 1); |
|
779 |
|
780 /* set this immediately, we need to know before |
|
781 * we talk to the chip directly */ |
|
782 pr_debug("PIO region size == 0x%02lX\n", pio_len); |
|
783 pr_debug("MMIO region size == 0x%02lX\n", mmio_len); |
|
784 |
|
785 retry: |
|
786 if (use_io) { |
|
787 /* make sure PCI base addr 0 is PIO */ |
|
788 if (!(pio_flags & IORESOURCE_IO)) { |
|
789 dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n"); |
|
790 rc = -ENODEV; |
|
791 goto err_out; |
|
792 } |
|
793 /* check for weird/broken PCI region reporting */ |
|
794 if (pio_len < RTL_MIN_IO_SIZE) { |
|
795 dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n"); |
|
796 rc = -ENODEV; |
|
797 goto err_out; |
|
798 } |
|
799 } else { |
|
800 /* make sure PCI base addr 1 is MMIO */ |
|
801 if (!(mmio_flags & IORESOURCE_MEM)) { |
|
802 dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); |
|
803 rc = -ENODEV; |
|
804 goto err_out; |
|
805 } |
|
806 if (mmio_len < RTL_MIN_IO_SIZE) { |
|
807 dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n"); |
|
808 rc = -ENODEV; |
|
809 goto err_out; |
|
810 } |
|
811 } |
|
812 |
|
813 rc = pci_request_regions (pdev, DRV_NAME); |
|
814 if (rc) |
|
815 goto err_out; |
|
816 disable_dev_on_err = 1; |
|
817 |
|
818 /* enable PCI bus-mastering */ |
|
819 pci_set_master (pdev); |
|
820 |
|
821 if (use_io) { |
|
822 ioaddr = pci_iomap(pdev, 0, 0); |
|
823 if (!ioaddr) { |
|
824 dev_err(&pdev->dev, "cannot map PIO, aborting\n"); |
|
825 rc = -EIO; |
|
826 goto err_out; |
|
827 } |
|
828 dev->base_addr = pio_start; |
|
829 tp->regs_len = pio_len; |
|
830 } else { |
|
831 /* ioremap MMIO region */ |
|
832 ioaddr = pci_iomap(pdev, 1, 0); |
|
833 if (ioaddr == NULL) { |
|
834 dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n"); |
|
835 pci_release_regions(pdev); |
|
836 use_io = 1; |
|
837 goto retry; |
|
838 } |
|
839 dev->base_addr = (long) ioaddr; |
|
840 tp->regs_len = mmio_len; |
|
841 } |
|
842 tp->mmio_addr = ioaddr; |
|
843 |
|
844 /* Bring old chips out of low-power mode. */ |
|
845 RTL_W8 (HltClk, 'R'); |
|
846 |
|
847 /* check for missing/broken hardware */ |
|
848 if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { |
|
849 dev_err(&pdev->dev, "Chip not responding, ignoring board\n"); |
|
850 rc = -EIO; |
|
851 goto err_out; |
|
852 } |
|
853 |
|
854 /* identify chip attached to board */ |
|
855 version = RTL_R32 (TxConfig) & HW_REVID_MASK; |
|
856 for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) |
|
857 if (version == rtl_chip_info[i].version) { |
|
858 tp->chipset = i; |
|
859 goto match; |
|
860 } |
|
861 |
|
862 /* if unknown chip, assume array element #0, original RTL-8139 in this case */ |
|
863 dev_dbg(&pdev->dev, "unknown chip version, assuming RTL-8139\n"); |
|
864 dev_dbg(&pdev->dev, "TxConfig = 0x%lx\n", RTL_R32 (TxConfig)); |
|
865 tp->chipset = 0; |
|
866 |
|
867 match: |
|
868 pr_debug("chipset id (%d) == index %d, '%s'\n", |
|
869 version, i, rtl_chip_info[i].name); |
|
870 |
|
871 if (tp->chipset >= CH_8139B) { |
|
872 u8 new_tmp8 = tmp8 = RTL_R8 (Config1); |
|
873 pr_debug("PCI PM wakeup\n"); |
|
874 if ((rtl_chip_info[tp->chipset].flags & HasLWake) && |
|
875 (tmp8 & LWAKE)) |
|
876 new_tmp8 &= ~LWAKE; |
|
877 new_tmp8 |= Cfg1_PM_Enable; |
|
878 if (new_tmp8 != tmp8) { |
|
879 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
880 RTL_W8 (Config1, tmp8); |
|
881 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
882 } |
|
883 if (rtl_chip_info[tp->chipset].flags & HasLWake) { |
|
884 tmp8 = RTL_R8 (Config4); |
|
885 if (tmp8 & LWPTN) { |
|
886 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
887 RTL_W8 (Config4, tmp8 & ~LWPTN); |
|
888 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
889 } |
|
890 } |
|
891 } else { |
|
892 pr_debug("Old chip wakeup\n"); |
|
893 tmp8 = RTL_R8 (Config1); |
|
894 tmp8 &= ~(SLEEP | PWRDN); |
|
895 RTL_W8 (Config1, tmp8); |
|
896 } |
|
897 |
|
898 rtl8139_chip_reset (ioaddr); |
|
899 |
|
900 return dev; |
|
901 |
|
902 err_out: |
|
903 __rtl8139_cleanup_dev (dev); |
|
904 if (disable_dev_on_err) |
|
905 pci_disable_device (pdev); |
|
906 return ERR_PTR(rc); |
|
907 } |
|
908 |
|
909 static const struct net_device_ops rtl8139_netdev_ops = { |
|
910 .ndo_open = rtl8139_open, |
|
911 .ndo_stop = rtl8139_close, |
|
912 .ndo_get_stats = rtl8139_get_stats, |
|
913 .ndo_change_mtu = eth_change_mtu, |
|
914 .ndo_validate_addr = eth_validate_addr, |
|
915 .ndo_set_mac_address = rtl8139_set_mac_address, |
|
916 .ndo_start_xmit = rtl8139_start_xmit, |
|
917 .ndo_set_multicast_list = rtl8139_set_rx_mode, |
|
918 .ndo_do_ioctl = netdev_ioctl, |
|
919 .ndo_tx_timeout = rtl8139_tx_timeout, |
|
920 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
921 .ndo_poll_controller = rtl8139_poll_controller, |
|
922 #endif |
|
923 }; |
|
924 |
|
925 static int __devinit rtl8139_init_one (struct pci_dev *pdev, |
|
926 const struct pci_device_id *ent) |
|
927 { |
|
928 struct net_device *dev = NULL; |
|
929 struct rtl8139_private *tp; |
|
930 int i, addr_len, option; |
|
931 void __iomem *ioaddr; |
|
932 static int board_idx = -1; |
|
933 |
|
934 assert (pdev != NULL); |
|
935 assert (ent != NULL); |
|
936 |
|
937 board_idx++; |
|
938 |
|
939 /* when we're built into the kernel, the driver version message |
|
940 * is only printed if at least one 8139 board has been found |
|
941 */ |
|
942 #ifndef MODULE |
|
943 { |
|
944 static int printed_version; |
|
945 if (!printed_version++) |
|
946 pr_info(RTL8139_DRIVER_NAME "\n"); |
|
947 } |
|
948 #endif |
|
949 |
|
950 if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
|
951 pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) { |
|
952 dev_info(&pdev->dev, |
|
953 "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip, use 8139cp\n", |
|
954 pdev->vendor, pdev->device, pdev->revision); |
|
955 return -ENODEV; |
|
956 } |
|
957 |
|
958 if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
|
959 pdev->device == PCI_DEVICE_ID_REALTEK_8139 && |
|
960 pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS && |
|
961 pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) { |
|
962 pr_info("OQO Model 2 detected. Forcing PIO\n"); |
|
963 use_io = 1; |
|
964 } |
|
965 |
|
966 dev = rtl8139_init_board (pdev); |
|
967 if (IS_ERR(dev)) |
|
968 return PTR_ERR(dev); |
|
969 |
|
970 assert (dev != NULL); |
|
971 tp = netdev_priv(dev); |
|
972 tp->dev = dev; |
|
973 |
|
974 ioaddr = tp->mmio_addr; |
|
975 assert (ioaddr != NULL); |
|
976 |
|
977 addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; |
|
978 for (i = 0; i < 3; i++) |
|
979 ((__le16 *) (dev->dev_addr))[i] = |
|
980 cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len)); |
|
981 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
|
982 |
|
983 /* The Rtl8139-specific entries in the device structure. */ |
|
984 dev->netdev_ops = &rtl8139_netdev_ops; |
|
985 dev->ethtool_ops = &rtl8139_ethtool_ops; |
|
986 dev->watchdog_timeo = TX_TIMEOUT; |
|
987 netif_napi_add(dev, &tp->napi, rtl8139_poll, 64); |
|
988 |
|
989 /* note: the hardware is not capable of sg/csum/highdma, however |
|
990 * through the use of skb_copy_and_csum_dev we enable these |
|
991 * features |
|
992 */ |
|
993 dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; |
|
994 |
|
995 dev->irq = pdev->irq; |
|
996 |
|
997 /* tp zeroed and aligned in alloc_etherdev */ |
|
998 tp = netdev_priv(dev); |
|
999 |
|
1000 /* note: tp->chipset set in rtl8139_init_board */ |
|
1001 tp->drv_flags = board_info[ent->driver_data].hw_flags; |
|
1002 tp->mmio_addr = ioaddr; |
|
1003 tp->msg_enable = |
|
1004 (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); |
|
1005 spin_lock_init (&tp->lock); |
|
1006 spin_lock_init (&tp->rx_lock); |
|
1007 INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
|
1008 tp->mii.dev = dev; |
|
1009 tp->mii.mdio_read = mdio_read; |
|
1010 tp->mii.mdio_write = mdio_write; |
|
1011 tp->mii.phy_id_mask = 0x3f; |
|
1012 tp->mii.reg_num_mask = 0x1f; |
|
1013 |
|
1014 /* dev is fully set up and ready to use now */ |
|
1015 pr_debug("about to register device named %s (%p)...\n", |
|
1016 dev->name, dev); |
|
1017 i = register_netdev (dev); |
|
1018 if (i) goto err_out; |
|
1019 |
|
1020 pci_set_drvdata (pdev, dev); |
|
1021 |
|
1022 netdev_info(dev, "%s at 0x%lx, %pM, IRQ %d\n", |
|
1023 board_info[ent->driver_data].name, |
|
1024 dev->base_addr, dev->dev_addr, dev->irq); |
|
1025 |
|
1026 netdev_dbg(dev, "Identified 8139 chip type '%s'\n", |
|
1027 rtl_chip_info[tp->chipset].name); |
|
1028 |
|
1029 /* Find the connected MII xcvrs. |
|
1030 Doing this in open() would allow detecting external xcvrs later, but |
|
1031 takes too much time. */ |
|
1032 #ifdef CONFIG_8139TOO_8129 |
|
1033 if (tp->drv_flags & HAS_MII_XCVR) { |
|
1034 int phy, phy_idx = 0; |
|
1035 for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { |
|
1036 int mii_status = mdio_read(dev, phy, 1); |
|
1037 if (mii_status != 0xffff && mii_status != 0x0000) { |
|
1038 u16 advertising = mdio_read(dev, phy, 4); |
|
1039 tp->phys[phy_idx++] = phy; |
|
1040 netdev_info(dev, "MII transceiver %d status 0x%04x advertising %04x\n", |
|
1041 phy, mii_status, advertising); |
|
1042 } |
|
1043 } |
|
1044 if (phy_idx == 0) { |
|
1045 netdev_info(dev, "No MII transceivers found! Assuming SYM transceiver\n"); |
|
1046 tp->phys[0] = 32; |
|
1047 } |
|
1048 } else |
|
1049 #endif |
|
1050 tp->phys[0] = 32; |
|
1051 tp->mii.phy_id = tp->phys[0]; |
|
1052 |
|
1053 /* The lower four bits are the media type. */ |
|
1054 option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; |
|
1055 if (option > 0) { |
|
1056 tp->mii.full_duplex = (option & 0x210) ? 1 : 0; |
|
1057 tp->default_port = option & 0xFF; |
|
1058 if (tp->default_port) |
|
1059 tp->mii.force_media = 1; |
|
1060 } |
|
1061 if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) |
|
1062 tp->mii.full_duplex = full_duplex[board_idx]; |
|
1063 if (tp->mii.full_duplex) { |
|
1064 netdev_info(dev, "Media type forced to Full Duplex\n"); |
|
1065 /* Changing the MII-advertised media because might prevent |
|
1066 re-connection. */ |
|
1067 tp->mii.force_media = 1; |
|
1068 } |
|
1069 if (tp->default_port) { |
|
1070 netdev_info(dev, " Forcing %dMbps %s-duplex operation\n", |
|
1071 (option & 0x20 ? 100 : 10), |
|
1072 (option & 0x10 ? "full" : "half")); |
|
1073 mdio_write(dev, tp->phys[0], 0, |
|
1074 ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ |
|
1075 ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ |
|
1076 } |
|
1077 |
|
1078 /* Put the chip into low-power mode. */ |
|
1079 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
1080 RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
|
1081 |
|
1082 return 0; |
|
1083 |
|
1084 err_out: |
|
1085 __rtl8139_cleanup_dev (dev); |
|
1086 pci_disable_device (pdev); |
|
1087 return i; |
|
1088 } |
|
1089 |
|
1090 |
|
1091 static void __devexit rtl8139_remove_one (struct pci_dev *pdev) |
|
1092 { |
|
1093 struct net_device *dev = pci_get_drvdata (pdev); |
|
1094 |
|
1095 assert (dev != NULL); |
|
1096 |
|
1097 flush_scheduled_work(); |
|
1098 |
|
1099 unregister_netdev (dev); |
|
1100 |
|
1101 __rtl8139_cleanup_dev (dev); |
|
1102 pci_disable_device (pdev); |
|
1103 } |
|
1104 |
|
1105 |
|
1106 /* Serial EEPROM section. */ |
|
1107 |
|
1108 /* EEPROM_Ctrl bits. */ |
|
1109 #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ |
|
1110 #define EE_CS 0x08 /* EEPROM chip select. */ |
|
1111 #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ |
|
1112 #define EE_WRITE_0 0x00 |
|
1113 #define EE_WRITE_1 0x02 |
|
1114 #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ |
|
1115 #define EE_ENB (0x80 | EE_CS) |
|
1116 |
|
1117 /* Delay between EEPROM clock transitions. |
|
1118 No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. |
|
1119 */ |
|
1120 |
|
1121 #define eeprom_delay() (void)RTL_R32(Cfg9346) |
|
1122 |
|
1123 /* The EEPROM commands include the alway-set leading bit. */ |
|
1124 #define EE_WRITE_CMD (5) |
|
1125 #define EE_READ_CMD (6) |
|
1126 #define EE_ERASE_CMD (7) |
|
1127 |
|
1128 static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len) |
|
1129 { |
|
1130 int i; |
|
1131 unsigned retval = 0; |
|
1132 int read_cmd = location | (EE_READ_CMD << addr_len); |
|
1133 |
|
1134 RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); |
|
1135 RTL_W8 (Cfg9346, EE_ENB); |
|
1136 eeprom_delay (); |
|
1137 |
|
1138 /* Shift the read command bits out. */ |
|
1139 for (i = 4 + addr_len; i >= 0; i--) { |
|
1140 int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; |
|
1141 RTL_W8 (Cfg9346, EE_ENB | dataval); |
|
1142 eeprom_delay (); |
|
1143 RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); |
|
1144 eeprom_delay (); |
|
1145 } |
|
1146 RTL_W8 (Cfg9346, EE_ENB); |
|
1147 eeprom_delay (); |
|
1148 |
|
1149 for (i = 16; i > 0; i--) { |
|
1150 RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); |
|
1151 eeprom_delay (); |
|
1152 retval = |
|
1153 (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : |
|
1154 0); |
|
1155 RTL_W8 (Cfg9346, EE_ENB); |
|
1156 eeprom_delay (); |
|
1157 } |
|
1158 |
|
1159 /* Terminate the EEPROM access. */ |
|
1160 RTL_W8 (Cfg9346, ~EE_CS); |
|
1161 eeprom_delay (); |
|
1162 |
|
1163 return retval; |
|
1164 } |
|
1165 |
|
1166 /* MII serial management: mostly bogus for now. */ |
|
1167 /* Read and write the MII management registers using software-generated |
|
1168 serial MDIO protocol. |
|
1169 The maximum data clock rate is 2.5 Mhz. The minimum timing is usually |
|
1170 met by back-to-back PCI I/O cycles, but we insert a delay to avoid |
|
1171 "overclocking" issues. */ |
|
1172 #define MDIO_DIR 0x80 |
|
1173 #define MDIO_DATA_OUT 0x04 |
|
1174 #define MDIO_DATA_IN 0x02 |
|
1175 #define MDIO_CLK 0x01 |
|
1176 #define MDIO_WRITE0 (MDIO_DIR) |
|
1177 #define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) |
|
1178 |
|
1179 #define mdio_delay() RTL_R8(Config4) |
|
1180 |
|
1181 |
|
1182 static const char mii_2_8139_map[8] = { |
|
1183 BasicModeCtrl, |
|
1184 BasicModeStatus, |
|
1185 0, |
|
1186 0, |
|
1187 NWayAdvert, |
|
1188 NWayLPAR, |
|
1189 NWayExpansion, |
|
1190 0 |
|
1191 }; |
|
1192 |
|
1193 |
|
1194 #ifdef CONFIG_8139TOO_8129 |
|
1195 /* Syncronize the MII management interface by shifting 32 one bits out. */ |
|
1196 static void mdio_sync (void __iomem *ioaddr) |
|
1197 { |
|
1198 int i; |
|
1199 |
|
1200 for (i = 32; i >= 0; i--) { |
|
1201 RTL_W8 (Config4, MDIO_WRITE1); |
|
1202 mdio_delay (); |
|
1203 RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); |
|
1204 mdio_delay (); |
|
1205 } |
|
1206 } |
|
1207 #endif |
|
1208 |
|
1209 static int mdio_read (struct net_device *dev, int phy_id, int location) |
|
1210 { |
|
1211 struct rtl8139_private *tp = netdev_priv(dev); |
|
1212 int retval = 0; |
|
1213 #ifdef CONFIG_8139TOO_8129 |
|
1214 void __iomem *ioaddr = tp->mmio_addr; |
|
1215 int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; |
|
1216 int i; |
|
1217 #endif |
|
1218 |
|
1219 if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
|
1220 void __iomem *ioaddr = tp->mmio_addr; |
|
1221 return location < 8 && mii_2_8139_map[location] ? |
|
1222 RTL_R16 (mii_2_8139_map[location]) : 0; |
|
1223 } |
|
1224 |
|
1225 #ifdef CONFIG_8139TOO_8129 |
|
1226 mdio_sync (ioaddr); |
|
1227 /* Shift the read command bits out. */ |
|
1228 for (i = 15; i >= 0; i--) { |
|
1229 int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; |
|
1230 |
|
1231 RTL_W8 (Config4, MDIO_DIR | dataval); |
|
1232 mdio_delay (); |
|
1233 RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); |
|
1234 mdio_delay (); |
|
1235 } |
|
1236 |
|
1237 /* Read the two transition, 16 data, and wire-idle bits. */ |
|
1238 for (i = 19; i > 0; i--) { |
|
1239 RTL_W8 (Config4, 0); |
|
1240 mdio_delay (); |
|
1241 retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); |
|
1242 RTL_W8 (Config4, MDIO_CLK); |
|
1243 mdio_delay (); |
|
1244 } |
|
1245 #endif |
|
1246 |
|
1247 return (retval >> 1) & 0xffff; |
|
1248 } |
|
1249 |
|
1250 |
|
1251 static void mdio_write (struct net_device *dev, int phy_id, int location, |
|
1252 int value) |
|
1253 { |
|
1254 struct rtl8139_private *tp = netdev_priv(dev); |
|
1255 #ifdef CONFIG_8139TOO_8129 |
|
1256 void __iomem *ioaddr = tp->mmio_addr; |
|
1257 int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; |
|
1258 int i; |
|
1259 #endif |
|
1260 |
|
1261 if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
|
1262 void __iomem *ioaddr = tp->mmio_addr; |
|
1263 if (location == 0) { |
|
1264 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
1265 RTL_W16 (BasicModeCtrl, value); |
|
1266 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1267 } else if (location < 8 && mii_2_8139_map[location]) |
|
1268 RTL_W16 (mii_2_8139_map[location], value); |
|
1269 return; |
|
1270 } |
|
1271 |
|
1272 #ifdef CONFIG_8139TOO_8129 |
|
1273 mdio_sync (ioaddr); |
|
1274 |
|
1275 /* Shift the command bits out. */ |
|
1276 for (i = 31; i >= 0; i--) { |
|
1277 int dataval = |
|
1278 (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; |
|
1279 RTL_W8 (Config4, dataval); |
|
1280 mdio_delay (); |
|
1281 RTL_W8 (Config4, dataval | MDIO_CLK); |
|
1282 mdio_delay (); |
|
1283 } |
|
1284 /* Clear out extra bits. */ |
|
1285 for (i = 2; i > 0; i--) { |
|
1286 RTL_W8 (Config4, 0); |
|
1287 mdio_delay (); |
|
1288 RTL_W8 (Config4, MDIO_CLK); |
|
1289 mdio_delay (); |
|
1290 } |
|
1291 #endif |
|
1292 } |
|
1293 |
|
1294 |
|
1295 static int rtl8139_open (struct net_device *dev) |
|
1296 { |
|
1297 struct rtl8139_private *tp = netdev_priv(dev); |
|
1298 int retval; |
|
1299 void __iomem *ioaddr = tp->mmio_addr; |
|
1300 |
|
1301 retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev); |
|
1302 if (retval) |
|
1303 return retval; |
|
1304 |
|
1305 tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
|
1306 &tp->tx_bufs_dma, GFP_KERNEL); |
|
1307 tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
|
1308 &tp->rx_ring_dma, GFP_KERNEL); |
|
1309 if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { |
|
1310 free_irq(dev->irq, dev); |
|
1311 |
|
1312 if (tp->tx_bufs) |
|
1313 dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
|
1314 tp->tx_bufs, tp->tx_bufs_dma); |
|
1315 if (tp->rx_ring) |
|
1316 dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
|
1317 tp->rx_ring, tp->rx_ring_dma); |
|
1318 |
|
1319 return -ENOMEM; |
|
1320 |
|
1321 } |
|
1322 |
|
1323 napi_enable(&tp->napi); |
|
1324 |
|
1325 tp->mii.full_duplex = tp->mii.force_media; |
|
1326 tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000; |
|
1327 |
|
1328 rtl8139_init_ring (dev); |
|
1329 rtl8139_hw_start (dev); |
|
1330 netif_start_queue (dev); |
|
1331 |
|
1332 netif_dbg(tp, ifup, dev, |
|
1333 "%s() ioaddr %#llx IRQ %d GP Pins %02x %s-duplex\n", |
|
1334 __func__, |
|
1335 (unsigned long long)pci_resource_start (tp->pci_dev, 1), |
|
1336 dev->irq, RTL_R8 (MediaStatus), |
|
1337 tp->mii.full_duplex ? "full" : "half"); |
|
1338 |
|
1339 rtl8139_start_thread(tp); |
|
1340 |
|
1341 return 0; |
|
1342 } |
|
1343 |
|
1344 |
|
1345 static void rtl_check_media (struct net_device *dev, unsigned int init_media) |
|
1346 { |
|
1347 struct rtl8139_private *tp = netdev_priv(dev); |
|
1348 |
|
1349 if (tp->phys[0] >= 0) { |
|
1350 mii_check_media(&tp->mii, netif_msg_link(tp), init_media); |
|
1351 } |
|
1352 } |
|
1353 |
|
1354 /* Start the hardware at open or resume. */ |
|
1355 static void rtl8139_hw_start (struct net_device *dev) |
|
1356 { |
|
1357 struct rtl8139_private *tp = netdev_priv(dev); |
|
1358 void __iomem *ioaddr = tp->mmio_addr; |
|
1359 u32 i; |
|
1360 u8 tmp; |
|
1361 |
|
1362 /* Bring old chips out of low-power mode. */ |
|
1363 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
1364 RTL_W8 (HltClk, 'R'); |
|
1365 |
|
1366 rtl8139_chip_reset (ioaddr); |
|
1367 |
|
1368 /* unlock Config[01234] and BMCR register writes */ |
|
1369 RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
|
1370 /* Restore our idea of the MAC address. */ |
|
1371 RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); |
|
1372 RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4))); |
|
1373 |
|
1374 tp->cur_rx = 0; |
|
1375 |
|
1376 /* init Rx ring buffer DMA address */ |
|
1377 RTL_W32_F (RxBuf, tp->rx_ring_dma); |
|
1378 |
|
1379 /* Must enable Tx/Rx before setting transfer thresholds! */ |
|
1380 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
1381 |
|
1382 tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
|
1383 RTL_W32 (RxConfig, tp->rx_config); |
|
1384 RTL_W32 (TxConfig, rtl8139_tx_config); |
|
1385 |
|
1386 rtl_check_media (dev, 1); |
|
1387 |
|
1388 if (tp->chipset >= CH_8139B) { |
|
1389 /* Disable magic packet scanning, which is enabled |
|
1390 * when PM is enabled in Config1. It can be reenabled |
|
1391 * via ETHTOOL_SWOL if desired. */ |
|
1392 RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); |
|
1393 } |
|
1394 |
|
1395 netdev_dbg(dev, "init buffer addresses\n"); |
|
1396 |
|
1397 /* Lock Config[01234] and BMCR register writes */ |
|
1398 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1399 |
|
1400 /* init Tx buffer DMA addresses */ |
|
1401 for (i = 0; i < NUM_TX_DESC; i++) |
|
1402 RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); |
|
1403 |
|
1404 RTL_W32 (RxMissed, 0); |
|
1405 |
|
1406 rtl8139_set_rx_mode (dev); |
|
1407 |
|
1408 /* no early-rx interrupts */ |
|
1409 RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); |
|
1410 |
|
1411 /* make sure RxTx has started */ |
|
1412 tmp = RTL_R8 (ChipCmd); |
|
1413 if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) |
|
1414 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
1415 |
|
1416 /* Enable all known interrupts by setting the interrupt mask. */ |
|
1417 RTL_W16 (IntrMask, rtl8139_intr_mask); |
|
1418 } |
|
1419 |
|
1420 |
|
1421 /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ |
|
1422 static void rtl8139_init_ring (struct net_device *dev) |
|
1423 { |
|
1424 struct rtl8139_private *tp = netdev_priv(dev); |
|
1425 int i; |
|
1426 |
|
1427 tp->cur_rx = 0; |
|
1428 tp->cur_tx = 0; |
|
1429 tp->dirty_tx = 0; |
|
1430 |
|
1431 for (i = 0; i < NUM_TX_DESC; i++) |
|
1432 tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; |
|
1433 } |
|
1434 |
|
1435 |
|
1436 /* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ |
|
1437 static int next_tick = 3 * HZ; |
|
1438 |
|
1439 #ifndef CONFIG_8139TOO_TUNE_TWISTER |
|
1440 static inline void rtl8139_tune_twister (struct net_device *dev, |
|
1441 struct rtl8139_private *tp) {} |
|
1442 #else |
|
1443 enum TwisterParamVals { |
|
1444 PARA78_default = 0x78fa8388, |
|
1445 PARA7c_default = 0xcb38de43, /* param[0][3] */ |
|
1446 PARA7c_xxx = 0xcb38de43, |
|
1447 }; |
|
1448 |
|
1449 static const unsigned long param[4][4] = { |
|
1450 {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, |
|
1451 {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
|
1452 {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
|
1453 {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} |
|
1454 }; |
|
1455 |
|
1456 static void rtl8139_tune_twister (struct net_device *dev, |
|
1457 struct rtl8139_private *tp) |
|
1458 { |
|
1459 int linkcase; |
|
1460 void __iomem *ioaddr = tp->mmio_addr; |
|
1461 |
|
1462 /* This is a complicated state machine to configure the "twister" for |
|
1463 impedance/echos based on the cable length. |
|
1464 All of this is magic and undocumented. |
|
1465 */ |
|
1466 switch (tp->twistie) { |
|
1467 case 1: |
|
1468 if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { |
|
1469 /* We have link beat, let us tune the twister. */ |
|
1470 RTL_W16 (CSCR, CSCR_LinkDownOffCmd); |
|
1471 tp->twistie = 2; /* Change to state 2. */ |
|
1472 next_tick = HZ / 10; |
|
1473 } else { |
|
1474 /* Just put in some reasonable defaults for when beat returns. */ |
|
1475 RTL_W16 (CSCR, CSCR_LinkDownCmd); |
|
1476 RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ |
|
1477 RTL_W32 (PARA78, PARA78_default); |
|
1478 RTL_W32 (PARA7c, PARA7c_default); |
|
1479 tp->twistie = 0; /* Bail from future actions. */ |
|
1480 } |
|
1481 break; |
|
1482 case 2: |
|
1483 /* Read how long it took to hear the echo. */ |
|
1484 linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; |
|
1485 if (linkcase == 0x7000) |
|
1486 tp->twist_row = 3; |
|
1487 else if (linkcase == 0x3000) |
|
1488 tp->twist_row = 2; |
|
1489 else if (linkcase == 0x1000) |
|
1490 tp->twist_row = 1; |
|
1491 else |
|
1492 tp->twist_row = 0; |
|
1493 tp->twist_col = 0; |
|
1494 tp->twistie = 3; /* Change to state 2. */ |
|
1495 next_tick = HZ / 10; |
|
1496 break; |
|
1497 case 3: |
|
1498 /* Put out four tuning parameters, one per 100msec. */ |
|
1499 if (tp->twist_col == 0) |
|
1500 RTL_W16 (FIFOTMS, 0); |
|
1501 RTL_W32 (PARA7c, param[(int) tp->twist_row] |
|
1502 [(int) tp->twist_col]); |
|
1503 next_tick = HZ / 10; |
|
1504 if (++tp->twist_col >= 4) { |
|
1505 /* For short cables we are done. |
|
1506 For long cables (row == 3) check for mistune. */ |
|
1507 tp->twistie = |
|
1508 (tp->twist_row == 3) ? 4 : 0; |
|
1509 } |
|
1510 break; |
|
1511 case 4: |
|
1512 /* Special case for long cables: check for mistune. */ |
|
1513 if ((RTL_R16 (CSCR) & |
|
1514 CSCR_LinkStatusBits) == 0x7000) { |
|
1515 tp->twistie = 0; |
|
1516 break; |
|
1517 } else { |
|
1518 RTL_W32 (PARA7c, 0xfb38de03); |
|
1519 tp->twistie = 5; |
|
1520 next_tick = HZ / 10; |
|
1521 } |
|
1522 break; |
|
1523 case 5: |
|
1524 /* Retune for shorter cable (column 2). */ |
|
1525 RTL_W32 (FIFOTMS, 0x20); |
|
1526 RTL_W32 (PARA78, PARA78_default); |
|
1527 RTL_W32 (PARA7c, PARA7c_default); |
|
1528 RTL_W32 (FIFOTMS, 0x00); |
|
1529 tp->twist_row = 2; |
|
1530 tp->twist_col = 0; |
|
1531 tp->twistie = 3; |
|
1532 next_tick = HZ / 10; |
|
1533 break; |
|
1534 |
|
1535 default: |
|
1536 /* do nothing */ |
|
1537 break; |
|
1538 } |
|
1539 } |
|
1540 #endif /* CONFIG_8139TOO_TUNE_TWISTER */ |
|
1541 |
|
1542 static inline void rtl8139_thread_iter (struct net_device *dev, |
|
1543 struct rtl8139_private *tp, |
|
1544 void __iomem *ioaddr) |
|
1545 { |
|
1546 int mii_lpa; |
|
1547 |
|
1548 mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); |
|
1549 |
|
1550 if (!tp->mii.force_media && mii_lpa != 0xffff) { |
|
1551 int duplex = ((mii_lpa & LPA_100FULL) || |
|
1552 (mii_lpa & 0x01C0) == 0x0040); |
|
1553 if (tp->mii.full_duplex != duplex) { |
|
1554 tp->mii.full_duplex = duplex; |
|
1555 |
|
1556 if (mii_lpa) { |
|
1557 netdev_info(dev, "Setting %s-duplex based on MII #%d link partner ability of %04x\n", |
|
1558 tp->mii.full_duplex ? "full" : "half", |
|
1559 tp->phys[0], mii_lpa); |
|
1560 } else { |
|
1561 netdev_info(dev, "media is unconnected, link down, or incompatible connection\n"); |
|
1562 } |
|
1563 #if 0 |
|
1564 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
1565 RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); |
|
1566 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1567 #endif |
|
1568 } |
|
1569 } |
|
1570 |
|
1571 next_tick = HZ * 60; |
|
1572 |
|
1573 rtl8139_tune_twister (dev, tp); |
|
1574 |
|
1575 netdev_dbg(dev, "Media selection tick, Link partner %04x\n", |
|
1576 RTL_R16(NWayLPAR)); |
|
1577 netdev_dbg(dev, "Other registers are IntMask %04x IntStatus %04x\n", |
|
1578 RTL_R16(IntrMask), RTL_R16(IntrStatus)); |
|
1579 netdev_dbg(dev, "Chip config %02x %02x\n", |
|
1580 RTL_R8(Config0), RTL_R8(Config1)); |
|
1581 } |
|
1582 |
|
1583 static void rtl8139_thread (struct work_struct *work) |
|
1584 { |
|
1585 struct rtl8139_private *tp = |
|
1586 container_of(work, struct rtl8139_private, thread.work); |
|
1587 struct net_device *dev = tp->mii.dev; |
|
1588 unsigned long thr_delay = next_tick; |
|
1589 |
|
1590 rtnl_lock(); |
|
1591 |
|
1592 if (!netif_running(dev)) |
|
1593 goto out_unlock; |
|
1594 |
|
1595 if (tp->watchdog_fired) { |
|
1596 tp->watchdog_fired = 0; |
|
1597 rtl8139_tx_timeout_task(work); |
|
1598 } else |
|
1599 rtl8139_thread_iter(dev, tp, tp->mmio_addr); |
|
1600 |
|
1601 if (tp->have_thread) |
|
1602 schedule_delayed_work(&tp->thread, thr_delay); |
|
1603 out_unlock: |
|
1604 rtnl_unlock (); |
|
1605 } |
|
1606 |
|
1607 static void rtl8139_start_thread(struct rtl8139_private *tp) |
|
1608 { |
|
1609 tp->twistie = 0; |
|
1610 if (tp->chipset == CH_8139_K) |
|
1611 tp->twistie = 1; |
|
1612 else if (tp->drv_flags & HAS_LNK_CHNG) |
|
1613 return; |
|
1614 |
|
1615 tp->have_thread = 1; |
|
1616 tp->watchdog_fired = 0; |
|
1617 |
|
1618 schedule_delayed_work(&tp->thread, next_tick); |
|
1619 } |
|
1620 |
|
1621 static inline void rtl8139_tx_clear (struct rtl8139_private *tp) |
|
1622 { |
|
1623 tp->cur_tx = 0; |
|
1624 tp->dirty_tx = 0; |
|
1625 |
|
1626 /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ |
|
1627 } |
|
1628 |
|
1629 static void rtl8139_tx_timeout_task (struct work_struct *work) |
|
1630 { |
|
1631 struct rtl8139_private *tp = |
|
1632 container_of(work, struct rtl8139_private, thread.work); |
|
1633 struct net_device *dev = tp->mii.dev; |
|
1634 void __iomem *ioaddr = tp->mmio_addr; |
|
1635 int i; |
|
1636 u8 tmp8; |
|
1637 |
|
1638 netdev_dbg(dev, "Transmit timeout, status %02x %04x %04x media %02x\n", |
|
1639 RTL_R8(ChipCmd), RTL_R16(IntrStatus), |
|
1640 RTL_R16(IntrMask), RTL_R8(MediaStatus)); |
|
1641 /* Emit info to figure out what went wrong. */ |
|
1642 netdev_dbg(dev, "Tx queue start entry %ld dirty entry %ld\n", |
|
1643 tp->cur_tx, tp->dirty_tx); |
|
1644 for (i = 0; i < NUM_TX_DESC; i++) |
|
1645 netdev_dbg(dev, "Tx descriptor %d is %08lx%s\n", |
|
1646 i, RTL_R32(TxStatus0 + (i * 4)), |
|
1647 i == tp->dirty_tx % NUM_TX_DESC ? |
|
1648 " (queue head)" : ""); |
|
1649 |
|
1650 tp->xstats.tx_timeouts++; |
|
1651 |
|
1652 /* disable Tx ASAP, if not already */ |
|
1653 tmp8 = RTL_R8 (ChipCmd); |
|
1654 if (tmp8 & CmdTxEnb) |
|
1655 RTL_W8 (ChipCmd, CmdRxEnb); |
|
1656 |
|
1657 spin_lock_bh(&tp->rx_lock); |
|
1658 /* Disable interrupts by clearing the interrupt mask. */ |
|
1659 RTL_W16 (IntrMask, 0x0000); |
|
1660 |
|
1661 /* Stop a shared interrupt from scavenging while we are. */ |
|
1662 spin_lock_irq(&tp->lock); |
|
1663 rtl8139_tx_clear (tp); |
|
1664 spin_unlock_irq(&tp->lock); |
|
1665 |
|
1666 /* ...and finally, reset everything */ |
|
1667 if (netif_running(dev)) { |
|
1668 rtl8139_hw_start (dev); |
|
1669 netif_wake_queue (dev); |
|
1670 } |
|
1671 spin_unlock_bh(&tp->rx_lock); |
|
1672 } |
|
1673 |
|
1674 static void rtl8139_tx_timeout (struct net_device *dev) |
|
1675 { |
|
1676 struct rtl8139_private *tp = netdev_priv(dev); |
|
1677 |
|
1678 tp->watchdog_fired = 1; |
|
1679 if (!tp->have_thread) { |
|
1680 INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
|
1681 schedule_delayed_work(&tp->thread, next_tick); |
|
1682 } |
|
1683 } |
|
1684 |
|
1685 static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb, |
|
1686 struct net_device *dev) |
|
1687 { |
|
1688 struct rtl8139_private *tp = netdev_priv(dev); |
|
1689 void __iomem *ioaddr = tp->mmio_addr; |
|
1690 unsigned int entry; |
|
1691 unsigned int len = skb->len; |
|
1692 unsigned long flags; |
|
1693 |
|
1694 /* Calculate the next Tx descriptor entry. */ |
|
1695 entry = tp->cur_tx % NUM_TX_DESC; |
|
1696 |
|
1697 /* Note: the chip doesn't have auto-pad! */ |
|
1698 if (likely(len < TX_BUF_SIZE)) { |
|
1699 if (len < ETH_ZLEN) |
|
1700 memset(tp->tx_buf[entry], 0, ETH_ZLEN); |
|
1701 skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); |
|
1702 dev_kfree_skb(skb); |
|
1703 } else { |
|
1704 dev_kfree_skb(skb); |
|
1705 dev->stats.tx_dropped++; |
|
1706 return NETDEV_TX_OK; |
|
1707 } |
|
1708 |
|
1709 spin_lock_irqsave(&tp->lock, flags); |
|
1710 /* |
|
1711 * Writing to TxStatus triggers a DMA transfer of the data |
|
1712 * copied to tp->tx_buf[entry] above. Use a memory barrier |
|
1713 * to make sure that the device sees the updated data. |
|
1714 */ |
|
1715 wmb(); |
|
1716 RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), |
|
1717 tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); |
|
1718 |
|
1719 dev->trans_start = jiffies; |
|
1720 |
|
1721 tp->cur_tx++; |
|
1722 |
|
1723 if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) |
|
1724 netif_stop_queue (dev); |
|
1725 spin_unlock_irqrestore(&tp->lock, flags); |
|
1726 |
|
1727 netif_dbg(tp, tx_queued, dev, "Queued Tx packet size %u to slot %d\n", |
|
1728 len, entry); |
|
1729 |
|
1730 return NETDEV_TX_OK; |
|
1731 } |
|
1732 |
|
1733 |
|
1734 static void rtl8139_tx_interrupt (struct net_device *dev, |
|
1735 struct rtl8139_private *tp, |
|
1736 void __iomem *ioaddr) |
|
1737 { |
|
1738 unsigned long dirty_tx, tx_left; |
|
1739 |
|
1740 assert (dev != NULL); |
|
1741 assert (ioaddr != NULL); |
|
1742 |
|
1743 dirty_tx = tp->dirty_tx; |
|
1744 tx_left = tp->cur_tx - dirty_tx; |
|
1745 while (tx_left > 0) { |
|
1746 int entry = dirty_tx % NUM_TX_DESC; |
|
1747 int txstatus; |
|
1748 |
|
1749 txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); |
|
1750 |
|
1751 if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) |
|
1752 break; /* It still hasn't been Txed */ |
|
1753 |
|
1754 /* Note: TxCarrierLost is always asserted at 100mbps. */ |
|
1755 if (txstatus & (TxOutOfWindow | TxAborted)) { |
|
1756 /* There was an major error, log it. */ |
|
1757 netif_dbg(tp, tx_err, dev, "Transmit error, Tx status %08x\n", |
|
1758 txstatus); |
|
1759 dev->stats.tx_errors++; |
|
1760 if (txstatus & TxAborted) { |
|
1761 dev->stats.tx_aborted_errors++; |
|
1762 RTL_W32 (TxConfig, TxClearAbt); |
|
1763 RTL_W16 (IntrStatus, TxErr); |
|
1764 wmb(); |
|
1765 } |
|
1766 if (txstatus & TxCarrierLost) |
|
1767 dev->stats.tx_carrier_errors++; |
|
1768 if (txstatus & TxOutOfWindow) |
|
1769 dev->stats.tx_window_errors++; |
|
1770 } else { |
|
1771 if (txstatus & TxUnderrun) { |
|
1772 /* Add 64 to the Tx FIFO threshold. */ |
|
1773 if (tp->tx_flag < 0x00300000) |
|
1774 tp->tx_flag += 0x00020000; |
|
1775 dev->stats.tx_fifo_errors++; |
|
1776 } |
|
1777 dev->stats.collisions += (txstatus >> 24) & 15; |
|
1778 dev->stats.tx_bytes += txstatus & 0x7ff; |
|
1779 dev->stats.tx_packets++; |
|
1780 } |
|
1781 |
|
1782 dirty_tx++; |
|
1783 tx_left--; |
|
1784 } |
|
1785 |
|
1786 #ifndef RTL8139_NDEBUG |
|
1787 if (tp->cur_tx - dirty_tx > NUM_TX_DESC) { |
|
1788 netdev_err(dev, "Out-of-sync dirty pointer, %ld vs. %ld\n", |
|
1789 dirty_tx, tp->cur_tx); |
|
1790 dirty_tx += NUM_TX_DESC; |
|
1791 } |
|
1792 #endif /* RTL8139_NDEBUG */ |
|
1793 |
|
1794 /* only wake the queue if we did work, and the queue is stopped */ |
|
1795 if (tp->dirty_tx != dirty_tx) { |
|
1796 tp->dirty_tx = dirty_tx; |
|
1797 mb(); |
|
1798 netif_wake_queue (dev); |
|
1799 } |
|
1800 } |
|
1801 |
|
1802 |
|
1803 /* TODO: clean this up! Rx reset need not be this intensive */ |
|
1804 static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, |
|
1805 struct rtl8139_private *tp, void __iomem *ioaddr) |
|
1806 { |
|
1807 u8 tmp8; |
|
1808 #ifdef CONFIG_8139_OLD_RX_RESET |
|
1809 int tmp_work; |
|
1810 #endif |
|
1811 |
|
1812 netif_dbg(tp, rx_err, dev, "Ethernet frame had errors, status %08x\n", |
|
1813 rx_status); |
|
1814 dev->stats.rx_errors++; |
|
1815 if (!(rx_status & RxStatusOK)) { |
|
1816 if (rx_status & RxTooLong) { |
|
1817 netdev_dbg(dev, "Oversized Ethernet frame, status %04x!\n", |
|
1818 rx_status); |
|
1819 /* A.C.: The chip hangs here. */ |
|
1820 } |
|
1821 if (rx_status & (RxBadSymbol | RxBadAlign)) |
|
1822 dev->stats.rx_frame_errors++; |
|
1823 if (rx_status & (RxRunt | RxTooLong)) |
|
1824 dev->stats.rx_length_errors++; |
|
1825 if (rx_status & RxCRCErr) |
|
1826 dev->stats.rx_crc_errors++; |
|
1827 } else { |
|
1828 tp->xstats.rx_lost_in_ring++; |
|
1829 } |
|
1830 |
|
1831 #ifndef CONFIG_8139_OLD_RX_RESET |
|
1832 tmp8 = RTL_R8 (ChipCmd); |
|
1833 RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); |
|
1834 RTL_W8 (ChipCmd, tmp8); |
|
1835 RTL_W32 (RxConfig, tp->rx_config); |
|
1836 tp->cur_rx = 0; |
|
1837 #else |
|
1838 /* Reset the receiver, based on RealTek recommendation. (Bug?) */ |
|
1839 |
|
1840 /* disable receive */ |
|
1841 RTL_W8_F (ChipCmd, CmdTxEnb); |
|
1842 tmp_work = 200; |
|
1843 while (--tmp_work > 0) { |
|
1844 udelay(1); |
|
1845 tmp8 = RTL_R8 (ChipCmd); |
|
1846 if (!(tmp8 & CmdRxEnb)) |
|
1847 break; |
|
1848 } |
|
1849 if (tmp_work <= 0) |
|
1850 netdev_warn(dev, "rx stop wait too long\n"); |
|
1851 /* restart receive */ |
|
1852 tmp_work = 200; |
|
1853 while (--tmp_work > 0) { |
|
1854 RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
1855 udelay(1); |
|
1856 tmp8 = RTL_R8 (ChipCmd); |
|
1857 if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) |
|
1858 break; |
|
1859 } |
|
1860 if (tmp_work <= 0) |
|
1861 netdev_warn(dev, "tx/rx enable wait too long\n"); |
|
1862 |
|
1863 /* and reinitialize all rx related registers */ |
|
1864 RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
|
1865 /* Must enable Tx/Rx before setting transfer thresholds! */ |
|
1866 RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
|
1867 |
|
1868 tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
|
1869 RTL_W32 (RxConfig, tp->rx_config); |
|
1870 tp->cur_rx = 0; |
|
1871 |
|
1872 netdev_dbg(dev, "init buffer addresses\n"); |
|
1873 |
|
1874 /* Lock Config[01234] and BMCR register writes */ |
|
1875 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
1876 |
|
1877 /* init Rx ring buffer DMA address */ |
|
1878 RTL_W32_F (RxBuf, tp->rx_ring_dma); |
|
1879 |
|
1880 /* A.C.: Reset the multicast list. */ |
|
1881 __set_rx_mode (dev); |
|
1882 #endif |
|
1883 } |
|
1884 |
|
1885 #if RX_BUF_IDX == 3 |
|
1886 static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring, |
|
1887 u32 offset, unsigned int size) |
|
1888 { |
|
1889 u32 left = RX_BUF_LEN - offset; |
|
1890 |
|
1891 if (size > left) { |
|
1892 skb_copy_to_linear_data(skb, ring + offset, left); |
|
1893 skb_copy_to_linear_data_offset(skb, left, ring, size - left); |
|
1894 } else |
|
1895 skb_copy_to_linear_data(skb, ring + offset, size); |
|
1896 } |
|
1897 #endif |
|
1898 |
|
1899 static void rtl8139_isr_ack(struct rtl8139_private *tp) |
|
1900 { |
|
1901 void __iomem *ioaddr = tp->mmio_addr; |
|
1902 u16 status; |
|
1903 |
|
1904 status = RTL_R16 (IntrStatus) & RxAckBits; |
|
1905 |
|
1906 /* Clear out errors and receive interrupts */ |
|
1907 if (likely(status != 0)) { |
|
1908 if (unlikely(status & (RxFIFOOver | RxOverflow))) { |
|
1909 tp->dev->stats.rx_errors++; |
|
1910 if (status & RxFIFOOver) |
|
1911 tp->dev->stats.rx_fifo_errors++; |
|
1912 } |
|
1913 RTL_W16_F (IntrStatus, RxAckBits); |
|
1914 } |
|
1915 } |
|
1916 |
|
1917 static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, |
|
1918 int budget) |
|
1919 { |
|
1920 void __iomem *ioaddr = tp->mmio_addr; |
|
1921 int received = 0; |
|
1922 unsigned char *rx_ring = tp->rx_ring; |
|
1923 unsigned int cur_rx = tp->cur_rx; |
|
1924 unsigned int rx_size = 0; |
|
1925 |
|
1926 netdev_dbg(dev, "In %s(), current %04x BufAddr %04x, free to %04x, Cmd %02x\n", |
|
1927 __func__, (u16)cur_rx, |
|
1928 RTL_R16(RxBufAddr), RTL_R16(RxBufPtr), RTL_R8(ChipCmd)); |
|
1929 |
|
1930 while (netif_running(dev) && received < budget && |
|
1931 (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { |
|
1932 u32 ring_offset = cur_rx % RX_BUF_LEN; |
|
1933 u32 rx_status; |
|
1934 unsigned int pkt_size; |
|
1935 struct sk_buff *skb; |
|
1936 |
|
1937 rmb(); |
|
1938 |
|
1939 /* read size+status of next frame from DMA ring buffer */ |
|
1940 rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset)); |
|
1941 rx_size = rx_status >> 16; |
|
1942 pkt_size = rx_size - 4; |
|
1943 |
|
1944 netif_dbg(tp, rx_status, dev, "%s() status %04x, size %04x, cur %04x\n", |
|
1945 __func__, rx_status, rx_size, cur_rx); |
|
1946 #if RTL8139_DEBUG > 2 |
|
1947 print_hex_dump(KERN_DEBUG, "Frame contents: ", |
|
1948 DUMP_PREFIX_OFFSET, 16, 1, |
|
1949 &rx_ring[ring_offset], 70, true); |
|
1950 #endif |
|
1951 |
|
1952 /* Packet copy from FIFO still in progress. |
|
1953 * Theoretically, this should never happen |
|
1954 * since EarlyRx is disabled. |
|
1955 */ |
|
1956 if (unlikely(rx_size == 0xfff0)) { |
|
1957 if (!tp->fifo_copy_timeout) |
|
1958 tp->fifo_copy_timeout = jiffies + 2; |
|
1959 else if (time_after(jiffies, tp->fifo_copy_timeout)) { |
|
1960 netdev_dbg(dev, "hung FIFO. Reset\n"); |
|
1961 rx_size = 0; |
|
1962 goto no_early_rx; |
|
1963 } |
|
1964 netif_dbg(tp, intr, dev, "fifo copy in progress\n"); |
|
1965 tp->xstats.early_rx++; |
|
1966 break; |
|
1967 } |
|
1968 |
|
1969 no_early_rx: |
|
1970 tp->fifo_copy_timeout = 0; |
|
1971 |
|
1972 /* If Rx err or invalid rx_size/rx_status received |
|
1973 * (which happens if we get lost in the ring), |
|
1974 * Rx process gets reset, so we abort any further |
|
1975 * Rx processing. |
|
1976 */ |
|
1977 if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || |
|
1978 (rx_size < 8) || |
|
1979 (!(rx_status & RxStatusOK)))) { |
|
1980 rtl8139_rx_err (rx_status, dev, tp, ioaddr); |
|
1981 received = -1; |
|
1982 goto out; |
|
1983 } |
|
1984 |
|
1985 /* Malloc up new buffer, compatible with net-2e. */ |
|
1986 /* Omit the four octet CRC from the length. */ |
|
1987 |
|
1988 skb = netdev_alloc_skb_ip_align(dev, pkt_size); |
|
1989 if (likely(skb)) { |
|
1990 #if RX_BUF_IDX == 3 |
|
1991 wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); |
|
1992 #else |
|
1993 skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size); |
|
1994 #endif |
|
1995 skb_put (skb, pkt_size); |
|
1996 |
|
1997 skb->protocol = eth_type_trans (skb, dev); |
|
1998 |
|
1999 dev->stats.rx_bytes += pkt_size; |
|
2000 dev->stats.rx_packets++; |
|
2001 |
|
2002 netif_receive_skb (skb); |
|
2003 } else { |
|
2004 if (net_ratelimit()) |
|
2005 netdev_warn(dev, "Memory squeeze, dropping packet\n"); |
|
2006 dev->stats.rx_dropped++; |
|
2007 } |
|
2008 received++; |
|
2009 |
|
2010 cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; |
|
2011 RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); |
|
2012 |
|
2013 rtl8139_isr_ack(tp); |
|
2014 } |
|
2015 |
|
2016 if (unlikely(!received || rx_size == 0xfff0)) |
|
2017 rtl8139_isr_ack(tp); |
|
2018 |
|
2019 netdev_dbg(dev, "Done %s(), current %04x BufAddr %04x, free to %04x, Cmd %02x\n", |
|
2020 __func__, cur_rx, |
|
2021 RTL_R16(RxBufAddr), RTL_R16(RxBufPtr), RTL_R8(ChipCmd)); |
|
2022 |
|
2023 tp->cur_rx = cur_rx; |
|
2024 |
|
2025 /* |
|
2026 * The receive buffer should be mostly empty. |
|
2027 * Tell NAPI to reenable the Rx irq. |
|
2028 */ |
|
2029 if (tp->fifo_copy_timeout) |
|
2030 received = budget; |
|
2031 |
|
2032 out: |
|
2033 return received; |
|
2034 } |
|
2035 |
|
2036 |
|
2037 static void rtl8139_weird_interrupt (struct net_device *dev, |
|
2038 struct rtl8139_private *tp, |
|
2039 void __iomem *ioaddr, |
|
2040 int status, int link_changed) |
|
2041 { |
|
2042 netdev_dbg(dev, "Abnormal interrupt, status %08x\n", status); |
|
2043 |
|
2044 assert (dev != NULL); |
|
2045 assert (tp != NULL); |
|
2046 assert (ioaddr != NULL); |
|
2047 |
|
2048 /* Update the error count. */ |
|
2049 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2050 RTL_W32 (RxMissed, 0); |
|
2051 |
|
2052 if ((status & RxUnderrun) && link_changed && |
|
2053 (tp->drv_flags & HAS_LNK_CHNG)) { |
|
2054 rtl_check_media(dev, 0); |
|
2055 status &= ~RxUnderrun; |
|
2056 } |
|
2057 |
|
2058 if (status & (RxUnderrun | RxErr)) |
|
2059 dev->stats.rx_errors++; |
|
2060 |
|
2061 if (status & PCSTimeout) |
|
2062 dev->stats.rx_length_errors++; |
|
2063 if (status & RxUnderrun) |
|
2064 dev->stats.rx_fifo_errors++; |
|
2065 if (status & PCIErr) { |
|
2066 u16 pci_cmd_status; |
|
2067 pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); |
|
2068 pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); |
|
2069 |
|
2070 netdev_err(dev, "PCI Bus error %04x\n", pci_cmd_status); |
|
2071 } |
|
2072 } |
|
2073 |
|
2074 static int rtl8139_poll(struct napi_struct *napi, int budget) |
|
2075 { |
|
2076 struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi); |
|
2077 struct net_device *dev = tp->dev; |
|
2078 void __iomem *ioaddr = tp->mmio_addr; |
|
2079 int work_done; |
|
2080 |
|
2081 spin_lock(&tp->rx_lock); |
|
2082 work_done = 0; |
|
2083 if (likely(RTL_R16(IntrStatus) & RxAckBits)) |
|
2084 work_done += rtl8139_rx(dev, tp, budget); |
|
2085 |
|
2086 if (work_done < budget) { |
|
2087 unsigned long flags; |
|
2088 /* |
|
2089 * Order is important since data can get interrupted |
|
2090 * again when we think we are done. |
|
2091 */ |
|
2092 spin_lock_irqsave(&tp->lock, flags); |
|
2093 RTL_W16_F(IntrMask, rtl8139_intr_mask); |
|
2094 __napi_complete(napi); |
|
2095 spin_unlock_irqrestore(&tp->lock, flags); |
|
2096 } |
|
2097 spin_unlock(&tp->rx_lock); |
|
2098 |
|
2099 return work_done; |
|
2100 } |
|
2101 |
|
2102 /* The interrupt handler does all of the Rx thread work and cleans up |
|
2103 after the Tx thread. */ |
|
2104 static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance) |
|
2105 { |
|
2106 struct net_device *dev = (struct net_device *) dev_instance; |
|
2107 struct rtl8139_private *tp = netdev_priv(dev); |
|
2108 void __iomem *ioaddr = tp->mmio_addr; |
|
2109 u16 status, ackstat; |
|
2110 int link_changed = 0; /* avoid bogus "uninit" warning */ |
|
2111 int handled = 0; |
|
2112 |
|
2113 spin_lock (&tp->lock); |
|
2114 status = RTL_R16 (IntrStatus); |
|
2115 |
|
2116 /* shared irq? */ |
|
2117 if (unlikely((status & rtl8139_intr_mask) == 0)) |
|
2118 goto out; |
|
2119 |
|
2120 handled = 1; |
|
2121 |
|
2122 /* h/w no longer present (hotplug?) or major error, bail */ |
|
2123 if (unlikely(status == 0xFFFF)) |
|
2124 goto out; |
|
2125 |
|
2126 /* close possible race's with dev_close */ |
|
2127 if (unlikely(!netif_running(dev))) { |
|
2128 RTL_W16 (IntrMask, 0); |
|
2129 goto out; |
|
2130 } |
|
2131 |
|
2132 /* Acknowledge all of the current interrupt sources ASAP, but |
|
2133 an first get an additional status bit from CSCR. */ |
|
2134 if (unlikely(status & RxUnderrun)) |
|
2135 link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; |
|
2136 |
|
2137 ackstat = status & ~(RxAckBits | TxErr); |
|
2138 if (ackstat) |
|
2139 RTL_W16 (IntrStatus, ackstat); |
|
2140 |
|
2141 /* Receive packets are processed by poll routine. |
|
2142 If not running start it now. */ |
|
2143 if (status & RxAckBits){ |
|
2144 if (napi_schedule_prep(&tp->napi)) { |
|
2145 RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); |
|
2146 __napi_schedule(&tp->napi); |
|
2147 } |
|
2148 } |
|
2149 |
|
2150 /* Check uncommon events with one test. */ |
|
2151 if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) |
|
2152 rtl8139_weird_interrupt (dev, tp, ioaddr, |
|
2153 status, link_changed); |
|
2154 |
|
2155 if (status & (TxOK | TxErr)) { |
|
2156 rtl8139_tx_interrupt (dev, tp, ioaddr); |
|
2157 if (status & TxErr) |
|
2158 RTL_W16 (IntrStatus, TxErr); |
|
2159 } |
|
2160 out: |
|
2161 spin_unlock (&tp->lock); |
|
2162 |
|
2163 netdev_dbg(dev, "exiting interrupt, intr_status=%#4.4x\n", |
|
2164 RTL_R16(IntrStatus)); |
|
2165 return IRQ_RETVAL(handled); |
|
2166 } |
|
2167 |
|
2168 #ifdef CONFIG_NET_POLL_CONTROLLER |
|
2169 /* |
|
2170 * Polling receive - used by netconsole and other diagnostic tools |
|
2171 * to allow network i/o with interrupts disabled. |
|
2172 */ |
|
2173 static void rtl8139_poll_controller(struct net_device *dev) |
|
2174 { |
|
2175 disable_irq(dev->irq); |
|
2176 rtl8139_interrupt(dev->irq, dev); |
|
2177 enable_irq(dev->irq); |
|
2178 } |
|
2179 #endif |
|
2180 |
|
2181 static int rtl8139_set_mac_address(struct net_device *dev, void *p) |
|
2182 { |
|
2183 struct rtl8139_private *tp = netdev_priv(dev); |
|
2184 void __iomem *ioaddr = tp->mmio_addr; |
|
2185 struct sockaddr *addr = p; |
|
2186 |
|
2187 if (!is_valid_ether_addr(addr->sa_data)) |
|
2188 return -EADDRNOTAVAIL; |
|
2189 |
|
2190 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
|
2191 |
|
2192 spin_lock_irq(&tp->lock); |
|
2193 |
|
2194 RTL_W8_F(Cfg9346, Cfg9346_Unlock); |
|
2195 RTL_W32_F(MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0))); |
|
2196 RTL_W32_F(MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4))); |
|
2197 RTL_W8_F(Cfg9346, Cfg9346_Lock); |
|
2198 |
|
2199 spin_unlock_irq(&tp->lock); |
|
2200 |
|
2201 return 0; |
|
2202 } |
|
2203 |
|
2204 static int rtl8139_close (struct net_device *dev) |
|
2205 { |
|
2206 struct rtl8139_private *tp = netdev_priv(dev); |
|
2207 void __iomem *ioaddr = tp->mmio_addr; |
|
2208 unsigned long flags; |
|
2209 |
|
2210 netif_stop_queue(dev); |
|
2211 napi_disable(&tp->napi); |
|
2212 |
|
2213 netif_dbg(tp, ifdown, dev, "Shutting down ethercard, status was 0x%04x\n", |
|
2214 RTL_R16(IntrStatus)); |
|
2215 |
|
2216 spin_lock_irqsave (&tp->lock, flags); |
|
2217 |
|
2218 /* Stop the chip's Tx and Rx DMA processes. */ |
|
2219 RTL_W8 (ChipCmd, 0); |
|
2220 |
|
2221 /* Disable interrupts by clearing the interrupt mask. */ |
|
2222 RTL_W16 (IntrMask, 0); |
|
2223 |
|
2224 /* Update the error counts. */ |
|
2225 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2226 RTL_W32 (RxMissed, 0); |
|
2227 |
|
2228 spin_unlock_irqrestore (&tp->lock, flags); |
|
2229 |
|
2230 free_irq (dev->irq, dev); |
|
2231 |
|
2232 rtl8139_tx_clear (tp); |
|
2233 |
|
2234 dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
|
2235 tp->rx_ring, tp->rx_ring_dma); |
|
2236 dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
|
2237 tp->tx_bufs, tp->tx_bufs_dma); |
|
2238 tp->rx_ring = NULL; |
|
2239 tp->tx_bufs = NULL; |
|
2240 |
|
2241 /* Green! Put the chip in low-power mode. */ |
|
2242 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
2243 |
|
2244 if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
|
2245 RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
|
2246 |
|
2247 return 0; |
|
2248 } |
|
2249 |
|
2250 |
|
2251 /* Get the ethtool Wake-on-LAN settings. Assumes that wol points to |
|
2252 kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and |
|
2253 other threads or interrupts aren't messing with the 8139. */ |
|
2254 static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
|
2255 { |
|
2256 struct rtl8139_private *tp = netdev_priv(dev); |
|
2257 void __iomem *ioaddr = tp->mmio_addr; |
|
2258 |
|
2259 spin_lock_irq(&tp->lock); |
|
2260 if (rtl_chip_info[tp->chipset].flags & HasLWake) { |
|
2261 u8 cfg3 = RTL_R8 (Config3); |
|
2262 u8 cfg5 = RTL_R8 (Config5); |
|
2263 |
|
2264 wol->supported = WAKE_PHY | WAKE_MAGIC |
|
2265 | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; |
|
2266 |
|
2267 wol->wolopts = 0; |
|
2268 if (cfg3 & Cfg3_LinkUp) |
|
2269 wol->wolopts |= WAKE_PHY; |
|
2270 if (cfg3 & Cfg3_Magic) |
|
2271 wol->wolopts |= WAKE_MAGIC; |
|
2272 /* (KON)FIXME: See how netdev_set_wol() handles the |
|
2273 following constants. */ |
|
2274 if (cfg5 & Cfg5_UWF) |
|
2275 wol->wolopts |= WAKE_UCAST; |
|
2276 if (cfg5 & Cfg5_MWF) |
|
2277 wol->wolopts |= WAKE_MCAST; |
|
2278 if (cfg5 & Cfg5_BWF) |
|
2279 wol->wolopts |= WAKE_BCAST; |
|
2280 } |
|
2281 spin_unlock_irq(&tp->lock); |
|
2282 } |
|
2283 |
|
2284 |
|
2285 /* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes |
|
2286 that wol points to kernel memory and other threads or interrupts |
|
2287 aren't messing with the 8139. */ |
|
2288 static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
|
2289 { |
|
2290 struct rtl8139_private *tp = netdev_priv(dev); |
|
2291 void __iomem *ioaddr = tp->mmio_addr; |
|
2292 u32 support; |
|
2293 u8 cfg3, cfg5; |
|
2294 |
|
2295 support = ((rtl_chip_info[tp->chipset].flags & HasLWake) |
|
2296 ? (WAKE_PHY | WAKE_MAGIC |
|
2297 | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) |
|
2298 : 0); |
|
2299 if (wol->wolopts & ~support) |
|
2300 return -EINVAL; |
|
2301 |
|
2302 spin_lock_irq(&tp->lock); |
|
2303 cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); |
|
2304 if (wol->wolopts & WAKE_PHY) |
|
2305 cfg3 |= Cfg3_LinkUp; |
|
2306 if (wol->wolopts & WAKE_MAGIC) |
|
2307 cfg3 |= Cfg3_Magic; |
|
2308 RTL_W8 (Cfg9346, Cfg9346_Unlock); |
|
2309 RTL_W8 (Config3, cfg3); |
|
2310 RTL_W8 (Cfg9346, Cfg9346_Lock); |
|
2311 |
|
2312 cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); |
|
2313 /* (KON)FIXME: These are untested. We may have to set the |
|
2314 CRC0, Wakeup0 and LSBCRC0 registers too, but I have no |
|
2315 documentation. */ |
|
2316 if (wol->wolopts & WAKE_UCAST) |
|
2317 cfg5 |= Cfg5_UWF; |
|
2318 if (wol->wolopts & WAKE_MCAST) |
|
2319 cfg5 |= Cfg5_MWF; |
|
2320 if (wol->wolopts & WAKE_BCAST) |
|
2321 cfg5 |= Cfg5_BWF; |
|
2322 RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ |
|
2323 spin_unlock_irq(&tp->lock); |
|
2324 |
|
2325 return 0; |
|
2326 } |
|
2327 |
|
2328 static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
|
2329 { |
|
2330 struct rtl8139_private *tp = netdev_priv(dev); |
|
2331 strcpy(info->driver, DRV_NAME); |
|
2332 strcpy(info->version, DRV_VERSION); |
|
2333 strcpy(info->bus_info, pci_name(tp->pci_dev)); |
|
2334 info->regdump_len = tp->regs_len; |
|
2335 } |
|
2336 |
|
2337 static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
|
2338 { |
|
2339 struct rtl8139_private *tp = netdev_priv(dev); |
|
2340 spin_lock_irq(&tp->lock); |
|
2341 mii_ethtool_gset(&tp->mii, cmd); |
|
2342 spin_unlock_irq(&tp->lock); |
|
2343 return 0; |
|
2344 } |
|
2345 |
|
2346 static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
|
2347 { |
|
2348 struct rtl8139_private *tp = netdev_priv(dev); |
|
2349 int rc; |
|
2350 spin_lock_irq(&tp->lock); |
|
2351 rc = mii_ethtool_sset(&tp->mii, cmd); |
|
2352 spin_unlock_irq(&tp->lock); |
|
2353 return rc; |
|
2354 } |
|
2355 |
|
2356 static int rtl8139_nway_reset(struct net_device *dev) |
|
2357 { |
|
2358 struct rtl8139_private *tp = netdev_priv(dev); |
|
2359 return mii_nway_restart(&tp->mii); |
|
2360 } |
|
2361 |
|
2362 static u32 rtl8139_get_link(struct net_device *dev) |
|
2363 { |
|
2364 struct rtl8139_private *tp = netdev_priv(dev); |
|
2365 return mii_link_ok(&tp->mii); |
|
2366 } |
|
2367 |
|
2368 static u32 rtl8139_get_msglevel(struct net_device *dev) |
|
2369 { |
|
2370 struct rtl8139_private *tp = netdev_priv(dev); |
|
2371 return tp->msg_enable; |
|
2372 } |
|
2373 |
|
2374 static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) |
|
2375 { |
|
2376 struct rtl8139_private *tp = netdev_priv(dev); |
|
2377 tp->msg_enable = datum; |
|
2378 } |
|
2379 |
|
2380 static int rtl8139_get_regs_len(struct net_device *dev) |
|
2381 { |
|
2382 struct rtl8139_private *tp; |
|
2383 /* TODO: we are too slack to do reg dumping for pio, for now */ |
|
2384 if (use_io) |
|
2385 return 0; |
|
2386 tp = netdev_priv(dev); |
|
2387 return tp->regs_len; |
|
2388 } |
|
2389 |
|
2390 static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
|
2391 { |
|
2392 struct rtl8139_private *tp; |
|
2393 |
|
2394 /* TODO: we are too slack to do reg dumping for pio, for now */ |
|
2395 if (use_io) |
|
2396 return; |
|
2397 tp = netdev_priv(dev); |
|
2398 |
|
2399 regs->version = RTL_REGS_VER; |
|
2400 |
|
2401 spin_lock_irq(&tp->lock); |
|
2402 memcpy_fromio(regbuf, tp->mmio_addr, regs->len); |
|
2403 spin_unlock_irq(&tp->lock); |
|
2404 } |
|
2405 |
|
2406 static int rtl8139_get_sset_count(struct net_device *dev, int sset) |
|
2407 { |
|
2408 switch (sset) { |
|
2409 case ETH_SS_STATS: |
|
2410 return RTL_NUM_STATS; |
|
2411 default: |
|
2412 return -EOPNOTSUPP; |
|
2413 } |
|
2414 } |
|
2415 |
|
2416 static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) |
|
2417 { |
|
2418 struct rtl8139_private *tp = netdev_priv(dev); |
|
2419 |
|
2420 data[0] = tp->xstats.early_rx; |
|
2421 data[1] = tp->xstats.tx_buf_mapped; |
|
2422 data[2] = tp->xstats.tx_timeouts; |
|
2423 data[3] = tp->xstats.rx_lost_in_ring; |
|
2424 } |
|
2425 |
|
2426 static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
|
2427 { |
|
2428 memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); |
|
2429 } |
|
2430 |
|
2431 static const struct ethtool_ops rtl8139_ethtool_ops = { |
|
2432 .get_drvinfo = rtl8139_get_drvinfo, |
|
2433 .get_settings = rtl8139_get_settings, |
|
2434 .set_settings = rtl8139_set_settings, |
|
2435 .get_regs_len = rtl8139_get_regs_len, |
|
2436 .get_regs = rtl8139_get_regs, |
|
2437 .nway_reset = rtl8139_nway_reset, |
|
2438 .get_link = rtl8139_get_link, |
|
2439 .get_msglevel = rtl8139_get_msglevel, |
|
2440 .set_msglevel = rtl8139_set_msglevel, |
|
2441 .get_wol = rtl8139_get_wol, |
|
2442 .set_wol = rtl8139_set_wol, |
|
2443 .get_strings = rtl8139_get_strings, |
|
2444 .get_sset_count = rtl8139_get_sset_count, |
|
2445 .get_ethtool_stats = rtl8139_get_ethtool_stats, |
|
2446 }; |
|
2447 |
|
2448 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
|
2449 { |
|
2450 struct rtl8139_private *tp = netdev_priv(dev); |
|
2451 int rc; |
|
2452 |
|
2453 if (!netif_running(dev)) |
|
2454 return -EINVAL; |
|
2455 |
|
2456 spin_lock_irq(&tp->lock); |
|
2457 rc = generic_mii_ioctl(&tp->mii, if_mii(rq), cmd, NULL); |
|
2458 spin_unlock_irq(&tp->lock); |
|
2459 |
|
2460 return rc; |
|
2461 } |
|
2462 |
|
2463 |
|
2464 static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) |
|
2465 { |
|
2466 struct rtl8139_private *tp = netdev_priv(dev); |
|
2467 void __iomem *ioaddr = tp->mmio_addr; |
|
2468 unsigned long flags; |
|
2469 |
|
2470 if (netif_running(dev)) { |
|
2471 spin_lock_irqsave (&tp->lock, flags); |
|
2472 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2473 RTL_W32 (RxMissed, 0); |
|
2474 spin_unlock_irqrestore (&tp->lock, flags); |
|
2475 } |
|
2476 |
|
2477 return &dev->stats; |
|
2478 } |
|
2479 |
|
2480 /* Set or clear the multicast filter for this adaptor. |
|
2481 This routine is not state sensitive and need not be SMP locked. */ |
|
2482 |
|
2483 static void __set_rx_mode (struct net_device *dev) |
|
2484 { |
|
2485 struct rtl8139_private *tp = netdev_priv(dev); |
|
2486 void __iomem *ioaddr = tp->mmio_addr; |
|
2487 u32 mc_filter[2]; /* Multicast hash filter */ |
|
2488 int rx_mode; |
|
2489 u32 tmp; |
|
2490 |
|
2491 netdev_dbg(dev, "rtl8139_set_rx_mode(%04x) done -- Rx config %08lx\n", |
|
2492 dev->flags, RTL_R32(RxConfig)); |
|
2493 |
|
2494 /* Note: do not reorder, GCC is clever about common statements. */ |
|
2495 if (dev->flags & IFF_PROMISC) { |
|
2496 rx_mode = |
|
2497 AcceptBroadcast | AcceptMulticast | AcceptMyPhys | |
|
2498 AcceptAllPhys; |
|
2499 mc_filter[1] = mc_filter[0] = 0xffffffff; |
|
2500 } else if ((netdev_mc_count(dev) > multicast_filter_limit) || |
|
2501 (dev->flags & IFF_ALLMULTI)) { |
|
2502 /* Too many to filter perfectly -- accept all multicasts. */ |
|
2503 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; |
|
2504 mc_filter[1] = mc_filter[0] = 0xffffffff; |
|
2505 } else { |
|
2506 struct dev_mc_list *mclist; |
|
2507 rx_mode = AcceptBroadcast | AcceptMyPhys; |
|
2508 mc_filter[1] = mc_filter[0] = 0; |
|
2509 netdev_for_each_mc_addr(mclist, dev) { |
|
2510 int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; |
|
2511 |
|
2512 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); |
|
2513 rx_mode |= AcceptMulticast; |
|
2514 } |
|
2515 } |
|
2516 |
|
2517 /* We can safely update without stopping the chip. */ |
|
2518 tmp = rtl8139_rx_config | rx_mode; |
|
2519 if (tp->rx_config != tmp) { |
|
2520 RTL_W32_F (RxConfig, tmp); |
|
2521 tp->rx_config = tmp; |
|
2522 } |
|
2523 RTL_W32_F (MAR0 + 0, mc_filter[0]); |
|
2524 RTL_W32_F (MAR0 + 4, mc_filter[1]); |
|
2525 } |
|
2526 |
|
2527 static void rtl8139_set_rx_mode (struct net_device *dev) |
|
2528 { |
|
2529 unsigned long flags; |
|
2530 struct rtl8139_private *tp = netdev_priv(dev); |
|
2531 |
|
2532 spin_lock_irqsave (&tp->lock, flags); |
|
2533 __set_rx_mode(dev); |
|
2534 spin_unlock_irqrestore (&tp->lock, flags); |
|
2535 } |
|
2536 |
|
2537 #ifdef CONFIG_PM |
|
2538 |
|
2539 static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) |
|
2540 { |
|
2541 struct net_device *dev = pci_get_drvdata (pdev); |
|
2542 struct rtl8139_private *tp = netdev_priv(dev); |
|
2543 void __iomem *ioaddr = tp->mmio_addr; |
|
2544 unsigned long flags; |
|
2545 |
|
2546 pci_save_state (pdev); |
|
2547 |
|
2548 if (!netif_running (dev)) |
|
2549 return 0; |
|
2550 |
|
2551 netif_device_detach (dev); |
|
2552 |
|
2553 spin_lock_irqsave (&tp->lock, flags); |
|
2554 |
|
2555 /* Disable interrupts, stop Tx and Rx. */ |
|
2556 RTL_W16 (IntrMask, 0); |
|
2557 RTL_W8 (ChipCmd, 0); |
|
2558 |
|
2559 /* Update the error counts. */ |
|
2560 dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
|
2561 RTL_W32 (RxMissed, 0); |
|
2562 |
|
2563 spin_unlock_irqrestore (&tp->lock, flags); |
|
2564 |
|
2565 pci_set_power_state (pdev, PCI_D3hot); |
|
2566 |
|
2567 return 0; |
|
2568 } |
|
2569 |
|
2570 |
|
2571 static int rtl8139_resume (struct pci_dev *pdev) |
|
2572 { |
|
2573 struct net_device *dev = pci_get_drvdata (pdev); |
|
2574 |
|
2575 pci_restore_state (pdev); |
|
2576 if (!netif_running (dev)) |
|
2577 return 0; |
|
2578 pci_set_power_state (pdev, PCI_D0); |
|
2579 rtl8139_init_ring (dev); |
|
2580 rtl8139_hw_start (dev); |
|
2581 netif_device_attach (dev); |
|
2582 return 0; |
|
2583 } |
|
2584 |
|
2585 #endif /* CONFIG_PM */ |
|
2586 |
|
2587 |
|
2588 static struct pci_driver rtl8139_pci_driver = { |
|
2589 .name = DRV_NAME, |
|
2590 .id_table = rtl8139_pci_tbl, |
|
2591 .probe = rtl8139_init_one, |
|
2592 .remove = __devexit_p(rtl8139_remove_one), |
|
2593 #ifdef CONFIG_PM |
|
2594 .suspend = rtl8139_suspend, |
|
2595 .resume = rtl8139_resume, |
|
2596 #endif /* CONFIG_PM */ |
|
2597 }; |
|
2598 |
|
2599 |
|
2600 static int __init rtl8139_init_module (void) |
|
2601 { |
|
2602 /* when we're a module, we always print a version message, |
|
2603 * even if no 8139 board is found. |
|
2604 */ |
|
2605 #ifdef MODULE |
|
2606 pr_info(RTL8139_DRIVER_NAME "\n"); |
|
2607 #endif |
|
2608 |
|
2609 return pci_register_driver(&rtl8139_pci_driver); |
|
2610 } |
|
2611 |
|
2612 |
|
2613 static void __exit rtl8139_cleanup_module (void) |
|
2614 { |
|
2615 pci_unregister_driver (&rtl8139_pci_driver); |
|
2616 } |
|
2617 |
|
2618 |
|
2619 module_init(rtl8139_init_module); |
|
2620 module_exit(rtl8139_cleanup_module); |