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1 /******************************************************************************* |
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2 |
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3 Intel PRO/1000 Linux driver |
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4 Copyright(c) 1999 - 2006 Intel Corporation. |
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5 |
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6 This program is free software; you can redistribute it and/or modify it |
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7 under the terms and conditions of the GNU General Public License, |
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8 version 2, as published by the Free Software Foundation. |
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9 |
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10 This program is distributed in the hope it will be useful, but WITHOUT |
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11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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13 more details. |
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14 |
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15 You should have received a copy of the GNU General Public License along with |
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16 this program; if not, write to the Free Software Foundation, Inc., |
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17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
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18 |
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19 The full GNU General Public License is included in this distribution in |
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20 the file called "COPYING". |
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21 |
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22 Contact Information: |
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23 Linux NICS <linux.nics@intel.com> |
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24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
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25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
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26 |
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27 *******************************************************************************/ |
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28 |
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29 |
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30 /* Linux PRO/1000 Ethernet Driver main header file */ |
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31 |
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32 #ifndef _E1000_H_ |
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33 #define _E1000_H_ |
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34 |
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35 #include <linux/stddef.h> |
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36 #include <linux/module.h> |
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37 #include <linux/types.h> |
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38 #include <asm/byteorder.h> |
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39 #include <linux/init.h> |
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40 #include <linux/mm.h> |
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41 #include <linux/errno.h> |
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42 #include <linux/ioport.h> |
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43 #include <linux/pci.h> |
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44 #include <linux/kernel.h> |
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45 #include <linux/netdevice.h> |
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46 #include <linux/etherdevice.h> |
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47 #include <linux/skbuff.h> |
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48 #include <linux/delay.h> |
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49 #include <linux/timer.h> |
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50 #include <linux/slab.h> |
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51 #include <linux/vmalloc.h> |
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52 #include <linux/interrupt.h> |
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53 #include <linux/string.h> |
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54 #include <linux/pagemap.h> |
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55 #include <linux/dma-mapping.h> |
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56 #include <linux/bitops.h> |
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57 #include <asm/io.h> |
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58 #include <asm/irq.h> |
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59 #include <linux/capability.h> |
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60 #include <linux/in.h> |
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61 #include <linux/ip.h> |
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62 #include <linux/ipv6.h> |
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63 #include <linux/tcp.h> |
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64 #include <linux/udp.h> |
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65 #include <net/pkt_sched.h> |
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66 #include <linux/list.h> |
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67 #include <linux/reboot.h> |
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68 #include <net/checksum.h> |
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69 #include <linux/mii.h> |
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70 #include <linux/ethtool.h> |
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71 #include <linux/if_vlan.h> |
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72 #include "../ecdev.h" |
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73 |
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74 |
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75 #define BAR_0 0 |
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76 #define BAR_1 1 |
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77 #define BAR_5 5 |
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78 |
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79 #define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ |
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80 PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} |
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81 |
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82 struct e1000_adapter; |
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83 |
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84 #include "e1000_hw-2.6.32-ethercat.h" |
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85 |
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86 #ifdef DBG |
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87 #define E1000_DBG(args...) printk(KERN_DEBUG "ec_e1000: " args) |
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88 #else |
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89 #define E1000_DBG(args...) |
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90 #endif |
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91 |
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92 #define E1000_ERR(args...) printk(KERN_ERR "ec_e1000: " args) |
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93 |
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94 #define PFX "ec_e1000: " |
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95 |
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96 #define DPRINTK(nlevel, klevel, fmt, args...) \ |
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97 do { \ |
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98 if (NETIF_MSG_##nlevel & adapter->msg_enable) \ |
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99 printk(KERN_##klevel PFX "%s: %s: " fmt, \ |
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100 adapter->netdev->name, __func__, ##args); \ |
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101 } while (0) |
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102 |
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103 #define E1000_MAX_INTR 10 |
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104 |
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105 /* TX/RX descriptor defines */ |
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106 #define E1000_DEFAULT_TXD 256 |
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107 #define E1000_MAX_TXD 256 |
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108 #define E1000_MIN_TXD 80 |
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109 #define E1000_MAX_82544_TXD 4096 |
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110 |
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111 #define E1000_DEFAULT_RXD 256 |
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112 #define E1000_MAX_RXD 256 |
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113 #define E1000_MIN_RXD 80 |
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114 #define E1000_MAX_82544_RXD 4096 |
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115 |
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116 #define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */ |
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117 #define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */ |
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118 |
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119 /* this is the size past which hardware will drop packets when setting LPE=0 */ |
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120 #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 |
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121 |
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122 /* Supported Rx Buffer Sizes */ |
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123 #define E1000_RXBUFFER_128 128 /* Used for packet split */ |
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124 #define E1000_RXBUFFER_256 256 /* Used for packet split */ |
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125 #define E1000_RXBUFFER_512 512 |
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126 #define E1000_RXBUFFER_1024 1024 |
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127 #define E1000_RXBUFFER_2048 2048 |
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128 #define E1000_RXBUFFER_4096 4096 |
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129 #define E1000_RXBUFFER_8192 8192 |
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130 #define E1000_RXBUFFER_16384 16384 |
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131 |
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132 /* SmartSpeed delimiters */ |
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133 #define E1000_SMARTSPEED_DOWNSHIFT 3 |
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134 #define E1000_SMARTSPEED_MAX 15 |
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135 |
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136 /* Packet Buffer allocations */ |
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137 #define E1000_PBA_BYTES_SHIFT 0xA |
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138 #define E1000_TX_HEAD_ADDR_SHIFT 7 |
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139 #define E1000_PBA_TX_MASK 0xFFFF0000 |
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140 |
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141 /* Flow Control Watermarks */ |
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142 #define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ |
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143 #define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ |
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144 |
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145 #define E1000_FC_PAUSE_TIME 0xFFFF /* pause for the max or until send xon */ |
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146 |
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147 /* How many Tx Descriptors do we need to call netif_wake_queue ? */ |
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148 #define E1000_TX_QUEUE_WAKE 16 |
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149 /* How many Rx Buffers do we bundle into one write to the hardware ? */ |
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150 #define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ |
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151 |
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152 #define AUTO_ALL_MODES 0 |
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153 #define E1000_EEPROM_82544_APM 0x0004 |
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154 #define E1000_EEPROM_APME 0x0400 |
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155 |
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156 #ifndef E1000_MASTER_SLAVE |
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157 /* Switch to override PHY master/slave setting */ |
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158 #define E1000_MASTER_SLAVE e1000_ms_hw_default |
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159 #endif |
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160 |
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161 #define E1000_MNG_VLAN_NONE (-1) |
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162 |
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163 /* wrapper around a pointer to a socket buffer, |
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164 * so a DMA handle can be stored along with the buffer */ |
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165 struct e1000_buffer { |
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166 struct sk_buff *skb; |
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167 dma_addr_t dma; |
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168 struct page *page; |
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169 unsigned long time_stamp; |
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170 u16 length; |
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171 u16 next_to_watch; |
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172 }; |
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173 |
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174 struct e1000_tx_ring { |
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175 /* pointer to the descriptor ring memory */ |
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176 void *desc; |
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177 /* physical address of the descriptor ring */ |
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178 dma_addr_t dma; |
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179 /* length of descriptor ring in bytes */ |
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180 unsigned int size; |
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181 /* number of descriptors in the ring */ |
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182 unsigned int count; |
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183 /* next descriptor to associate a buffer with */ |
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184 unsigned int next_to_use; |
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185 /* next descriptor to check for DD status bit */ |
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186 unsigned int next_to_clean; |
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187 /* array of buffer information structs */ |
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188 struct e1000_buffer *buffer_info; |
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189 |
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190 u16 tdh; |
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191 u16 tdt; |
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192 bool last_tx_tso; |
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193 }; |
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194 |
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195 struct e1000_rx_ring { |
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196 /* pointer to the descriptor ring memory */ |
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197 void *desc; |
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198 /* physical address of the descriptor ring */ |
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199 dma_addr_t dma; |
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200 /* length of descriptor ring in bytes */ |
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201 unsigned int size; |
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202 /* number of descriptors in the ring */ |
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203 unsigned int count; |
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204 /* next descriptor to associate a buffer with */ |
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205 unsigned int next_to_use; |
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206 /* next descriptor to check for DD status bit */ |
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207 unsigned int next_to_clean; |
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208 /* array of buffer information structs */ |
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209 struct e1000_buffer *buffer_info; |
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210 struct sk_buff *rx_skb_top; |
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211 |
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212 /* cpu for rx queue */ |
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213 int cpu; |
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214 |
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215 u16 rdh; |
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216 u16 rdt; |
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217 }; |
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218 |
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219 #define E1000_DESC_UNUSED(R) \ |
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220 ((((R)->next_to_clean > (R)->next_to_use) \ |
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221 ? 0 : (R)->count) + (R)->next_to_clean - (R)->next_to_use - 1) |
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222 |
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223 #define E1000_RX_DESC_EXT(R, i) \ |
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224 (&(((union e1000_rx_desc_extended *)((R).desc))[i])) |
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225 #define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) |
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226 #define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) |
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227 #define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) |
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228 #define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) |
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229 |
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230 /* board specific private data structure */ |
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231 |
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232 struct e1000_adapter { |
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233 struct timer_list tx_fifo_stall_timer; |
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234 struct timer_list watchdog_timer; |
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235 struct timer_list phy_info_timer; |
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236 struct vlan_group *vlgrp; |
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237 u16 mng_vlan_id; |
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238 u32 bd_number; |
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239 u32 rx_buffer_len; |
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240 u32 wol; |
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241 u32 smartspeed; |
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242 u32 en_mng_pt; |
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243 u16 link_speed; |
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244 u16 link_duplex; |
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245 spinlock_t stats_lock; |
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246 unsigned int total_tx_bytes; |
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247 unsigned int total_tx_packets; |
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248 unsigned int total_rx_bytes; |
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249 unsigned int total_rx_packets; |
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250 /* Interrupt Throttle Rate */ |
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251 u32 itr; |
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252 u32 itr_setting; |
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253 u16 tx_itr; |
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254 u16 rx_itr; |
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255 |
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256 struct work_struct reset_task; |
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257 u8 fc_autoneg; |
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258 |
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259 struct timer_list blink_timer; |
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260 unsigned long led_status; |
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261 |
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262 /* TX */ |
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263 struct e1000_tx_ring *tx_ring; /* One per active queue */ |
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264 unsigned int restart_queue; |
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265 unsigned long tx_queue_len; |
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266 u32 txd_cmd; |
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267 u32 tx_int_delay; |
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268 u32 tx_abs_int_delay; |
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269 u32 gotcl; |
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270 u64 gotcl_old; |
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271 u64 tpt_old; |
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272 u64 colc_old; |
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273 u32 tx_timeout_count; |
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274 u32 tx_fifo_head; |
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275 u32 tx_head_addr; |
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276 u32 tx_fifo_size; |
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277 u8 tx_timeout_factor; |
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278 atomic_t tx_fifo_stall; |
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279 bool pcix_82544; |
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280 bool detect_tx_hung; |
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281 |
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282 /* RX */ |
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283 bool (*clean_rx)(struct e1000_adapter *adapter, |
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284 struct e1000_rx_ring *rx_ring, |
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285 int *work_done, int work_to_do); |
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286 void (*alloc_rx_buf)(struct e1000_adapter *adapter, |
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287 struct e1000_rx_ring *rx_ring, |
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288 int cleaned_count); |
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289 struct e1000_rx_ring *rx_ring; /* One per active queue */ |
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290 struct napi_struct napi; |
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291 |
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292 int num_tx_queues; |
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293 int num_rx_queues; |
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294 |
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295 u64 hw_csum_err; |
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296 u64 hw_csum_good; |
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297 u32 alloc_rx_buff_failed; |
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298 u32 rx_int_delay; |
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299 u32 rx_abs_int_delay; |
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300 bool rx_csum; |
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301 u32 gorcl; |
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302 u64 gorcl_old; |
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303 |
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304 /* OS defined structs */ |
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305 struct net_device *netdev; |
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306 struct pci_dev *pdev; |
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307 struct net_device_stats net_stats; |
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308 |
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309 /* structs defined in e1000_hw.h */ |
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310 struct e1000_hw hw; |
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311 struct e1000_hw_stats stats; |
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312 struct e1000_phy_info phy_info; |
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313 struct e1000_phy_stats phy_stats; |
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314 |
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315 u32 test_icr; |
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316 struct e1000_tx_ring test_tx_ring; |
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317 struct e1000_rx_ring test_rx_ring; |
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318 |
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319 int msg_enable; |
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320 |
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321 /* to not mess up cache alignment, always add to the bottom */ |
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322 bool tso_force; |
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323 bool smart_power_down; /* phy smart power down */ |
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324 bool quad_port_a; |
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325 unsigned long flags; |
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326 u32 eeprom_wol; |
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327 |
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328 /* for ioport free */ |
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329 int bars; |
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330 int need_ioport; |
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331 |
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332 bool discarding; |
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333 |
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334 ec_device_t *ecdev; |
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335 unsigned long ec_watchdog_jiffies; |
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336 }; |
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337 |
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338 enum e1000_state_t { |
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339 __E1000_TESTING, |
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340 __E1000_RESETTING, |
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341 __E1000_DOWN |
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342 }; |
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343 |
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344 extern char e1000_driver_name[]; |
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345 extern const char e1000_driver_version[]; |
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346 |
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347 extern int e1000_up(struct e1000_adapter *adapter); |
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348 extern void e1000_down(struct e1000_adapter *adapter); |
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349 extern void e1000_reinit_locked(struct e1000_adapter *adapter); |
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350 extern void e1000_reset(struct e1000_adapter *adapter); |
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351 extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx); |
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352 extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); |
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353 extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); |
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354 extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter); |
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355 extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter); |
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356 extern void e1000_update_stats(struct e1000_adapter *adapter); |
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357 extern void e1000_power_up_phy(struct e1000_adapter *); |
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358 extern void e1000_set_ethtool_ops(struct net_device *netdev); |
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359 extern void e1000_check_options(struct e1000_adapter *adapter); |
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360 |
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361 #endif /* _E1000_H_ */ |