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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/mm.h> |
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40 #include <linux/errno.h> |
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41 #include <linux/ioport.h> |
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42 #include <linux/pci.h> |
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43 #include <linux/kernel.h> |
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44 #include <linux/netdevice.h> |
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45 #include <linux/etherdevice.h> |
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46 #include <linux/skbuff.h> |
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47 #include <linux/delay.h> |
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48 #include <linux/timer.h> |
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49 #include <linux/slab.h> |
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50 #include <linux/vmalloc.h> |
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51 #include <linux/interrupt.h> |
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52 #include <linux/string.h> |
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53 #include <linux/pagemap.h> |
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54 #include <linux/dma-mapping.h> |
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55 #include <linux/bitops.h> |
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56 #include <asm/io.h> |
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57 #include <asm/irq.h> |
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58 #include <linux/capability.h> |
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59 #include <linux/in.h> |
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60 #include <linux/ip.h> |
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61 #include <linux/ipv6.h> |
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62 #include <linux/tcp.h> |
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63 #include <linux/udp.h> |
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64 #include <net/pkt_sched.h> |
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65 #include <linux/list.h> |
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66 #include <linux/reboot.h> |
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67 #include <net/checksum.h> |
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68 #include <linux/mii.h> |
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69 #include <linux/ethtool.h> |
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70 #include <linux/if_vlan.h> |
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71 |
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72 #define BAR_0 0 |
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73 #define BAR_1 1 |
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74 #define BAR_5 5 |
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75 |
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76 #define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ |
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77 PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} |
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78 |
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79 struct e1000_adapter; |
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80 |
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81 #include "e1000_hw.h" |
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82 |
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83 #define E1000_MAX_INTR 10 |
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84 |
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85 /* |
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86 * Count for polling __E1000_RESET condition every 10-20msec. |
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87 */ |
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88 #define E1000_CHECK_RESET_COUNT 50 |
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89 |
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90 /* TX/RX descriptor defines */ |
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91 #define E1000_DEFAULT_TXD 256 |
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92 #define E1000_MAX_TXD 256 |
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93 #define E1000_MIN_TXD 48 |
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94 #define E1000_MAX_82544_TXD 4096 |
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95 |
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96 #define E1000_DEFAULT_RXD 256 |
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97 #define E1000_MAX_RXD 256 |
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98 #define E1000_MIN_RXD 48 |
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99 #define E1000_MAX_82544_RXD 4096 |
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100 |
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101 #define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */ |
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102 #define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */ |
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103 |
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104 /* this is the size past which hardware will drop packets when setting LPE=0 */ |
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105 #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 |
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106 |
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107 /* Supported Rx Buffer Sizes */ |
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108 #define E1000_RXBUFFER_128 128 /* Used for packet split */ |
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109 #define E1000_RXBUFFER_256 256 /* Used for packet split */ |
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110 #define E1000_RXBUFFER_512 512 |
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111 #define E1000_RXBUFFER_1024 1024 |
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112 #define E1000_RXBUFFER_2048 2048 |
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113 #define E1000_RXBUFFER_4096 4096 |
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114 #define E1000_RXBUFFER_8192 8192 |
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115 #define E1000_RXBUFFER_16384 16384 |
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116 |
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117 /* SmartSpeed delimiters */ |
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118 #define E1000_SMARTSPEED_DOWNSHIFT 3 |
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119 #define E1000_SMARTSPEED_MAX 15 |
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120 |
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121 /* Packet Buffer allocations */ |
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122 #define E1000_PBA_BYTES_SHIFT 0xA |
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123 #define E1000_TX_HEAD_ADDR_SHIFT 7 |
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124 #define E1000_PBA_TX_MASK 0xFFFF0000 |
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125 |
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126 /* Flow Control Watermarks */ |
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127 #define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ |
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128 #define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ |
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129 |
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130 #define E1000_FC_PAUSE_TIME 0xFFFF /* pause for the max or until send xon */ |
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131 |
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132 /* How many Tx Descriptors do we need to call netif_wake_queue ? */ |
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133 #define E1000_TX_QUEUE_WAKE 16 |
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134 /* How many Rx Buffers do we bundle into one write to the hardware ? */ |
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135 #define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ |
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136 |
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137 #define AUTO_ALL_MODES 0 |
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138 #define E1000_EEPROM_82544_APM 0x0004 |
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139 #define E1000_EEPROM_APME 0x0400 |
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140 |
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141 #ifndef E1000_MASTER_SLAVE |
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142 /* Switch to override PHY master/slave setting */ |
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143 #define E1000_MASTER_SLAVE e1000_ms_hw_default |
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144 #endif |
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145 |
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146 #define E1000_MNG_VLAN_NONE (-1) |
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147 |
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148 /* wrapper around a pointer to a socket buffer, |
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149 * so a DMA handle can be stored along with the buffer |
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150 */ |
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151 struct e1000_buffer { |
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152 struct sk_buff *skb; |
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153 dma_addr_t dma; |
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154 struct page *page; |
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155 unsigned long time_stamp; |
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156 u16 length; |
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157 u16 next_to_watch; |
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158 unsigned int segs; |
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159 unsigned int bytecount; |
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160 u16 mapped_as_page; |
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161 }; |
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162 |
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163 struct e1000_tx_ring { |
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164 /* pointer to the descriptor ring memory */ |
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165 void *desc; |
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166 /* physical address of the descriptor ring */ |
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167 dma_addr_t dma; |
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168 /* length of descriptor ring in bytes */ |
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169 unsigned int size; |
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170 /* number of descriptors in the ring */ |
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171 unsigned int count; |
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172 /* next descriptor to associate a buffer with */ |
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173 unsigned int next_to_use; |
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174 /* next descriptor to check for DD status bit */ |
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175 unsigned int next_to_clean; |
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176 /* array of buffer information structs */ |
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177 struct e1000_buffer *buffer_info; |
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178 |
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179 u16 tdh; |
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180 u16 tdt; |
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181 bool last_tx_tso; |
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182 }; |
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183 |
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184 struct e1000_rx_ring { |
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185 /* pointer to the descriptor ring memory */ |
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186 void *desc; |
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187 /* physical address of the descriptor ring */ |
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188 dma_addr_t dma; |
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189 /* length of descriptor ring in bytes */ |
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190 unsigned int size; |
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191 /* number of descriptors in the ring */ |
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192 unsigned int count; |
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193 /* next descriptor to associate a buffer with */ |
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194 unsigned int next_to_use; |
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195 /* next descriptor to check for DD status bit */ |
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196 unsigned int next_to_clean; |
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197 /* array of buffer information structs */ |
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198 struct e1000_buffer *buffer_info; |
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199 struct sk_buff *rx_skb_top; |
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200 |
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201 /* cpu for rx queue */ |
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202 int cpu; |
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203 |
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204 u16 rdh; |
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205 u16 rdt; |
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206 }; |
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207 |
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208 #define E1000_DESC_UNUSED(R) \ |
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209 ((((R)->next_to_clean > (R)->next_to_use) \ |
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210 ? 0 : (R)->count) + (R)->next_to_clean - (R)->next_to_use - 1) |
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211 |
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212 #define E1000_RX_DESC_EXT(R, i) \ |
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213 (&(((union e1000_rx_desc_extended *)((R).desc))[i])) |
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214 #define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) |
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215 #define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) |
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216 #define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) |
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217 #define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) |
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218 |
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219 /* board specific private data structure */ |
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220 |
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221 struct e1000_adapter { |
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222 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; |
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223 u16 mng_vlan_id; |
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224 u32 bd_number; |
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225 u32 rx_buffer_len; |
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226 u32 wol; |
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227 u32 smartspeed; |
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228 u32 en_mng_pt; |
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229 u16 link_speed; |
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230 u16 link_duplex; |
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231 spinlock_t stats_lock; |
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232 unsigned int total_tx_bytes; |
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233 unsigned int total_tx_packets; |
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234 unsigned int total_rx_bytes; |
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235 unsigned int total_rx_packets; |
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236 /* Interrupt Throttle Rate */ |
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237 u32 itr; |
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238 u32 itr_setting; |
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239 u16 tx_itr; |
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240 u16 rx_itr; |
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241 |
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242 u8 fc_autoneg; |
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243 |
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244 /* TX */ |
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245 struct e1000_tx_ring *tx_ring; /* One per active queue */ |
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246 unsigned int restart_queue; |
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247 u32 txd_cmd; |
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248 u32 tx_int_delay; |
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249 u32 tx_abs_int_delay; |
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250 u32 gotcl; |
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251 u64 gotcl_old; |
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252 u64 tpt_old; |
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253 u64 colc_old; |
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254 u32 tx_timeout_count; |
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255 u32 tx_fifo_head; |
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256 u32 tx_head_addr; |
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257 u32 tx_fifo_size; |
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258 u8 tx_timeout_factor; |
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259 atomic_t tx_fifo_stall; |
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260 bool pcix_82544; |
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261 bool detect_tx_hung; |
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262 bool dump_buffers; |
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263 |
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264 /* RX */ |
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265 bool (*clean_rx)(struct e1000_adapter *adapter, |
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266 struct e1000_rx_ring *rx_ring, |
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267 int *work_done, int work_to_do); |
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268 void (*alloc_rx_buf)(struct e1000_adapter *adapter, |
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269 struct e1000_rx_ring *rx_ring, |
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270 int cleaned_count); |
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271 struct e1000_rx_ring *rx_ring; /* One per active queue */ |
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272 struct napi_struct napi; |
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273 |
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274 int num_tx_queues; |
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275 int num_rx_queues; |
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276 |
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277 u64 hw_csum_err; |
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278 u64 hw_csum_good; |
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279 u32 alloc_rx_buff_failed; |
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280 u32 rx_int_delay; |
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281 u32 rx_abs_int_delay; |
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282 bool rx_csum; |
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283 u32 gorcl; |
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284 u64 gorcl_old; |
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285 |
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286 /* OS defined structs */ |
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287 struct net_device *netdev; |
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288 struct pci_dev *pdev; |
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289 |
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290 /* structs defined in e1000_hw.h */ |
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291 struct e1000_hw hw; |
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292 struct e1000_hw_stats stats; |
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293 struct e1000_phy_info phy_info; |
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294 struct e1000_phy_stats phy_stats; |
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295 |
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296 u32 test_icr; |
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297 struct e1000_tx_ring test_tx_ring; |
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298 struct e1000_rx_ring test_rx_ring; |
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299 |
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300 int msg_enable; |
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301 |
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302 /* to not mess up cache alignment, always add to the bottom */ |
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303 bool tso_force; |
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304 bool smart_power_down; /* phy smart power down */ |
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305 bool quad_port_a; |
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306 unsigned long flags; |
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307 u32 eeprom_wol; |
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308 |
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309 /* for ioport free */ |
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310 int bars; |
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311 int need_ioport; |
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312 |
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313 bool discarding; |
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314 |
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315 struct work_struct reset_task; |
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316 struct delayed_work watchdog_task; |
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317 struct delayed_work fifo_stall_task; |
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318 struct delayed_work phy_info_task; |
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319 }; |
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320 |
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321 enum e1000_state_t { |
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322 __E1000_TESTING, |
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323 __E1000_RESETTING, |
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324 __E1000_DOWN |
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325 }; |
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326 |
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327 #undef pr_fmt |
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328 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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329 |
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330 struct net_device *e1000_get_hw_dev(struct e1000_hw *hw); |
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331 #define e_dbg(format, arg...) \ |
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332 netdev_dbg(e1000_get_hw_dev(hw), format, ## arg) |
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333 #define e_err(msglvl, format, arg...) \ |
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334 netif_err(adapter, msglvl, adapter->netdev, format, ## arg) |
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335 #define e_info(msglvl, format, arg...) \ |
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336 netif_info(adapter, msglvl, adapter->netdev, format, ## arg) |
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337 #define e_warn(msglvl, format, arg...) \ |
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338 netif_warn(adapter, msglvl, adapter->netdev, format, ## arg) |
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339 #define e_notice(msglvl, format, arg...) \ |
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340 netif_notice(adapter, msglvl, adapter->netdev, format, ## arg) |
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341 #define e_dev_info(format, arg...) \ |
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342 dev_info(&adapter->pdev->dev, format, ## arg) |
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343 #define e_dev_warn(format, arg...) \ |
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344 dev_warn(&adapter->pdev->dev, format, ## arg) |
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345 #define e_dev_err(format, arg...) \ |
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346 dev_err(&adapter->pdev->dev, format, ## arg) |
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347 |
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348 extern char e1000_driver_name[]; |
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349 extern const char e1000_driver_version[]; |
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350 |
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351 int e1000_up(struct e1000_adapter *adapter); |
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352 void e1000_down(struct e1000_adapter *adapter); |
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353 void e1000_reinit_locked(struct e1000_adapter *adapter); |
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354 void e1000_reset(struct e1000_adapter *adapter); |
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355 int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx); |
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356 int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); |
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357 int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); |
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358 void e1000_free_all_rx_resources(struct e1000_adapter *adapter); |
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359 void e1000_free_all_tx_resources(struct e1000_adapter *adapter); |
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360 void e1000_update_stats(struct e1000_adapter *adapter); |
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361 bool e1000_has_link(struct e1000_adapter *adapter); |
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362 void e1000_power_up_phy(struct e1000_adapter *); |
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363 void e1000_set_ethtool_ops(struct net_device *netdev); |
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364 void e1000_check_options(struct e1000_adapter *adapter); |
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365 char *e1000_get_hw_dev_name(struct e1000_hw *hw); |
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366 |
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367 #endif /* _E1000_H_ */ |