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1 /******************************************************************************* |
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2 |
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3 |
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4 Copyright(c) 1999 - 2006 Intel Corporation. All rights reserved. |
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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 of the GNU General Public License as published by the Free |
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8 Software Foundation; either version 2 of the License, or (at your option) |
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9 any later version. |
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10 |
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11 This program is distributed in the hope that it will be useful, but WITHOUT |
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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14 more details. |
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15 |
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16 You should have received a copy of the GNU General Public License along with |
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17 this program; if not, write to the Free Software Foundation, Inc., 59 |
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18 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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19 |
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20 The full GNU General Public License is included in this distribution in the |
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21 file called LICENSE. |
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22 |
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23 Contact Information: |
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24 Linux NICS <linux.nics@intel.com> |
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25 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
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26 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
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27 |
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28 *******************************************************************************/ |
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29 |
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30 |
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31 /* Linux PRO/1000 Ethernet Driver main header file */ |
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32 |
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33 #ifndef _E1000_H_ |
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34 #define _E1000_H_ |
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35 |
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36 #include <linux/stddef.h> |
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37 #include <linux/module.h> |
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38 #include <linux/types.h> |
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39 #include <asm/byteorder.h> |
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40 #include <linux/init.h> |
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41 #include <linux/mm.h> |
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42 #include <linux/errno.h> |
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43 #include <linux/ioport.h> |
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44 #include <linux/pci.h> |
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45 #include <linux/kernel.h> |
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46 #include <linux/netdevice.h> |
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47 #include <linux/etherdevice.h> |
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48 #include <linux/skbuff.h> |
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49 #include <linux/delay.h> |
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50 #include <linux/timer.h> |
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51 #include <linux/slab.h> |
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52 #include <linux/vmalloc.h> |
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53 #include <linux/interrupt.h> |
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54 #include <linux/string.h> |
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55 #include <linux/pagemap.h> |
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56 #include <linux/dma-mapping.h> |
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57 #include <linux/bitops.h> |
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58 #include <asm/io.h> |
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59 #include <asm/irq.h> |
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60 #include <linux/capability.h> |
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61 #include <linux/in.h> |
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62 #include <linux/ip.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 #ifdef NETIF_F_TSO |
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69 #include <net/checksum.h> |
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70 #endif |
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71 #include <linux/mii.h> |
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72 #include <linux/ethtool.h> |
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73 #include <linux/if_vlan.h> |
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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.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 "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 "e1000: " args) |
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93 |
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94 #define PFX "e1000: " |
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95 #define DPRINTK(nlevel, klevel, fmt, args...) \ |
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96 (void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \ |
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97 printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \ |
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98 __FUNCTION__ , ## args)) |
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99 |
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100 #define E1000_MAX_INTR 10 |
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101 |
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102 /* TX/RX descriptor defines */ |
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103 #define E1000_DEFAULT_TXD 256 |
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104 #define E1000_MAX_TXD 256 |
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105 #define E1000_MIN_TXD 80 |
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106 #define E1000_MAX_82544_TXD 4096 |
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107 |
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108 #define E1000_DEFAULT_RXD 256 |
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109 #define E1000_MAX_RXD 256 |
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110 #define E1000_MIN_RXD 80 |
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111 #define E1000_MAX_82544_RXD 4096 |
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112 |
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113 /* this is the size past which hardware will drop packets when setting LPE=0 */ |
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114 #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 |
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115 |
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116 /* Supported Rx Buffer Sizes */ |
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117 #define E1000_RXBUFFER_128 128 /* Used for packet split */ |
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118 #define E1000_RXBUFFER_256 256 /* Used for packet split */ |
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119 #define E1000_RXBUFFER_512 512 |
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120 #define E1000_RXBUFFER_1024 1024 |
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121 #define E1000_RXBUFFER_2048 2048 |
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122 #define E1000_RXBUFFER_4096 4096 |
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123 #define E1000_RXBUFFER_8192 8192 |
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124 #define E1000_RXBUFFER_16384 16384 |
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125 |
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126 /* SmartSpeed delimiters */ |
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127 #define E1000_SMARTSPEED_DOWNSHIFT 3 |
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128 #define E1000_SMARTSPEED_MAX 15 |
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129 |
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130 /* Packet Buffer allocations */ |
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131 #define E1000_PBA_BYTES_SHIFT 0xA |
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132 #define E1000_TX_HEAD_ADDR_SHIFT 7 |
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133 #define E1000_PBA_TX_MASK 0xFFFF0000 |
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134 |
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135 /* Flow Control Watermarks */ |
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136 #define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ |
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137 #define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ |
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138 |
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139 #define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */ |
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140 |
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141 /* How many Tx Descriptors do we need to call netif_wake_queue ? */ |
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142 #define E1000_TX_QUEUE_WAKE 16 |
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143 /* How many Rx Buffers do we bundle into one write to the hardware ? */ |
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144 #define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ |
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145 |
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146 #define AUTO_ALL_MODES 0 |
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147 #define E1000_EEPROM_82544_APM 0x0004 |
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148 #define E1000_EEPROM_ICH8_APME 0x0004 |
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149 #define E1000_EEPROM_APME 0x0400 |
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150 |
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151 #ifndef E1000_MASTER_SLAVE |
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152 /* Switch to override PHY master/slave setting */ |
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153 #define E1000_MASTER_SLAVE e1000_ms_hw_default |
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154 #endif |
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155 |
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156 #define E1000_MNG_VLAN_NONE -1 |
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157 /* Number of packet split data buffers (not including the header buffer) */ |
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158 #define PS_PAGE_BUFFERS MAX_PS_BUFFERS-1 |
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159 |
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160 /* only works for sizes that are powers of 2 */ |
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161 #define E1000_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 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 unsigned long time_stamp; |
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169 uint16_t length; |
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170 uint16_t next_to_watch; |
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171 }; |
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172 |
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173 |
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174 struct e1000_ps_page { struct page *ps_page[PS_PAGE_BUFFERS]; }; |
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175 struct e1000_ps_page_dma { uint64_t ps_page_dma[PS_PAGE_BUFFERS]; }; |
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176 |
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177 struct e1000_tx_ring { |
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178 /* pointer to the descriptor ring memory */ |
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179 void *desc; |
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180 /* physical address of the descriptor ring */ |
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181 dma_addr_t dma; |
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182 /* length of descriptor ring in bytes */ |
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183 unsigned int size; |
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184 /* number of descriptors in the ring */ |
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185 unsigned int count; |
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186 /* next descriptor to associate a buffer with */ |
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187 unsigned int next_to_use; |
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188 /* next descriptor to check for DD status bit */ |
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189 unsigned int next_to_clean; |
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190 /* array of buffer information structs */ |
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191 struct e1000_buffer *buffer_info; |
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192 |
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193 spinlock_t tx_lock; |
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194 uint16_t tdh; |
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195 uint16_t tdt; |
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196 boolean_t last_tx_tso; |
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197 }; |
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198 |
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199 struct e1000_rx_ring { |
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200 /* pointer to the descriptor ring memory */ |
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201 void *desc; |
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202 /* physical address of the descriptor ring */ |
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203 dma_addr_t dma; |
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204 /* length of descriptor ring in bytes */ |
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205 unsigned int size; |
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206 /* number of descriptors in the ring */ |
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207 unsigned int count; |
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208 /* next descriptor to associate a buffer with */ |
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209 unsigned int next_to_use; |
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210 /* next descriptor to check for DD status bit */ |
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211 unsigned int next_to_clean; |
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212 /* array of buffer information structs */ |
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213 struct e1000_buffer *buffer_info; |
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214 /* arrays of page information for packet split */ |
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215 struct e1000_ps_page *ps_page; |
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216 struct e1000_ps_page_dma *ps_page_dma; |
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217 |
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218 /* cpu for rx queue */ |
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219 int cpu; |
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220 |
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221 uint16_t rdh; |
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222 uint16_t rdt; |
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223 }; |
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224 |
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225 #define E1000_DESC_UNUSED(R) \ |
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226 ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ |
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227 (R)->next_to_clean - (R)->next_to_use - 1) |
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228 |
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229 #define E1000_RX_DESC_PS(R, i) \ |
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230 (&(((union e1000_rx_desc_packet_split *)((R).desc))[i])) |
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231 #define E1000_RX_DESC_EXT(R, i) \ |
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232 (&(((union e1000_rx_desc_extended *)((R).desc))[i])) |
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233 #define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) |
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234 #define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) |
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235 #define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) |
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236 #define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) |
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237 |
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238 /* board specific private data structure */ |
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239 |
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240 struct e1000_adapter { |
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241 struct timer_list tx_fifo_stall_timer; |
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242 struct timer_list watchdog_timer; |
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243 struct timer_list phy_info_timer; |
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244 struct vlan_group *vlgrp; |
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245 uint16_t mng_vlan_id; |
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246 uint32_t bd_number; |
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247 uint32_t rx_buffer_len; |
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248 uint32_t part_num; |
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249 uint32_t wol; |
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250 uint32_t ksp3_port_a; |
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251 uint32_t smartspeed; |
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252 uint32_t en_mng_pt; |
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253 uint16_t link_speed; |
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254 uint16_t link_duplex; |
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255 spinlock_t stats_lock; |
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256 #ifdef CONFIG_E1000_NAPI |
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257 spinlock_t tx_queue_lock; |
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258 #endif |
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259 atomic_t irq_sem; |
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260 struct work_struct reset_task; |
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261 uint8_t fc_autoneg; |
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262 |
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263 struct timer_list blink_timer; |
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264 unsigned long led_status; |
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265 |
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266 /* TX */ |
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267 struct e1000_tx_ring *tx_ring; /* One per active queue */ |
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268 unsigned long tx_queue_len; |
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269 uint32_t txd_cmd; |
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270 uint32_t tx_int_delay; |
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271 uint32_t tx_abs_int_delay; |
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272 uint32_t gotcl; |
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273 uint64_t gotcl_old; |
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274 uint64_t tpt_old; |
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275 uint64_t colc_old; |
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276 uint32_t tx_timeout_count; |
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277 uint32_t tx_fifo_head; |
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278 uint32_t tx_head_addr; |
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279 uint32_t tx_fifo_size; |
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280 uint8_t tx_timeout_factor; |
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281 atomic_t tx_fifo_stall; |
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282 boolean_t pcix_82544; |
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283 boolean_t detect_tx_hung; |
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284 |
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285 /* RX */ |
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286 #ifdef CONFIG_E1000_NAPI |
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287 boolean_t (*clean_rx) (struct e1000_adapter *adapter, |
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288 struct e1000_rx_ring *rx_ring, |
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289 int *work_done, int work_to_do); |
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290 #else |
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291 boolean_t (*clean_rx) (struct e1000_adapter *adapter, |
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292 struct e1000_rx_ring *rx_ring); |
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293 #endif |
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294 void (*alloc_rx_buf) (struct e1000_adapter *adapter, |
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295 struct e1000_rx_ring *rx_ring, |
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296 int cleaned_count); |
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297 struct e1000_rx_ring *rx_ring; /* One per active queue */ |
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298 #ifdef CONFIG_E1000_NAPI |
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299 struct net_device *polling_netdev; /* One per active queue */ |
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300 #endif |
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301 int num_tx_queues; |
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302 int num_rx_queues; |
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303 |
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304 uint64_t hw_csum_err; |
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305 uint64_t hw_csum_good; |
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306 uint64_t rx_hdr_split; |
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307 uint32_t alloc_rx_buff_failed; |
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308 uint32_t rx_int_delay; |
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309 uint32_t rx_abs_int_delay; |
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310 boolean_t rx_csum; |
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311 unsigned int rx_ps_pages; |
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312 uint32_t gorcl; |
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313 uint64_t gorcl_old; |
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314 uint16_t rx_ps_bsize0; |
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315 |
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316 /* Interrupt Throttle Rate */ |
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317 uint32_t itr; |
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318 |
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319 /* OS defined structs */ |
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320 struct net_device *netdev; |
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321 struct pci_dev *pdev; |
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322 struct net_device_stats net_stats; |
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323 |
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324 /* structs defined in e1000_hw.h */ |
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325 struct e1000_hw hw; |
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326 struct e1000_hw_stats stats; |
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327 struct e1000_phy_info phy_info; |
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328 struct e1000_phy_stats phy_stats; |
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329 |
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330 uint32_t test_icr; |
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331 struct e1000_tx_ring test_tx_ring; |
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332 struct e1000_rx_ring test_rx_ring; |
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333 |
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334 |
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335 uint32_t *config_space; |
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336 int msg_enable; |
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337 #ifdef CONFIG_PCI_MSI |
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338 boolean_t have_msi; |
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339 #endif |
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340 /* to not mess up cache alignment, always add to the bottom */ |
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341 #ifdef NETIF_F_TSO |
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342 boolean_t tso_force; |
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343 #endif |
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344 boolean_t smart_power_down; /* phy smart power down */ |
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345 unsigned long flags; |
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346 }; |
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347 |
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348 enum e1000_state_t { |
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349 __E1000_DRIVER_TESTING, |
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350 __E1000_RESETTING, |
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351 }; |
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352 |
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353 /* e1000_main.c */ |
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354 extern char e1000_driver_name[]; |
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355 extern char e1000_driver_version[]; |
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356 int e1000_up(struct e1000_adapter *adapter); |
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357 void e1000_down(struct e1000_adapter *adapter); |
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358 void e1000_reset(struct e1000_adapter *adapter); |
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359 void e1000_reinit_locked(struct e1000_adapter *adapter); |
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360 int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); |
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361 void e1000_free_all_tx_resources(struct e1000_adapter *adapter); |
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362 int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); |
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363 void e1000_free_all_rx_resources(struct e1000_adapter *adapter); |
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364 void e1000_update_stats(struct e1000_adapter *adapter); |
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365 int e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx); |
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366 |
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367 /* e1000_ethtool.c */ |
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368 void e1000_set_ethtool_ops(struct net_device *netdev); |
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369 |
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370 /* e1000_param.c */ |
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371 void e1000_check_options(struct e1000_adapter *adapter); |
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372 |
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373 |
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374 #endif /* _E1000_H_ */ |