reltek r8168 网卡驱动 for linux 2.4 2.6

/* ################################################################################ # # r8168 is the Linux device driver released for Realtek Gigabit Ethernet # controllers with PCI-Express interface. # # Copyright(c) 2015 Realtek Semiconductor Corp. All rights reserved. # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the Free # Software Foundation; either version 2 of the License, or (at your option) # any later version. # # This program is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for # more details. # # You should have received a copy of the GNU General Public License along with # this program; if not, see <http://www.gnu.org/licenses/>. # # Author: # Realtek NIC software team <nicfae@realtek.com> # No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan # ################################################################################ */ /************************************************************************************ * This product is covered by one or more of the following patents: * US6,570,884, US6,115,776, and US6,327,625. ***********************************************************************************/ /* * This driver is modified from r8169.c in Linux kernel 2.6.18 */ #include <linux/module.h> #include <linux/version.h> #include <linux/pci.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/delay.h> #include <linux/ethtool.h> #include <linux/mii.h> #include <linux/if_vlan.h> #include <linux/crc32.h> #include <linux/interrupt.h> #include <linux/in.h> #include <linux/ip.h> #include <linux/tcp.h> #include <linux/init.h> #include <linux/rtnetlink.h> #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) #include <linux/pci-aspm.h> #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,37) #include <linux/prefetch.h> #endif #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) #define dev_printk(A,B,fmt,args...) printk(A fmt,##args) #else #include <linux/dma-mapping.h> #include <linux/moduleparam.h> #endif #include <asm/io.h> #include <asm/irq.h> #include <asm/uaccess.h> #include "r8168.h" #include "r8168_asf.h" #include "rtl_eeprom.h" #include "rtltool.h" #ifdef ENABLE_R8168_PROCFS #include <linux/proc_fs.h> #include <linux/seq_file.h> #endif /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ static const int max_interrupt_work = 20; /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). The RTL chips use a 64 element hash table based on the Ethernet CRC. */ static const int multicast_filter_limit = 32; #define _R(NAME,MAC,RCR,MASK, JumFrameSz) \ { .name = NAME, .mcfg = MAC, .RCR_Cfg = RCR, .RxConfigMask = MASK, .jumbo_frame_sz = JumFrameSz } static const struct { const char *name; u8 mcfg; u32 RCR_Cfg; u32 RxConfigMask; /* Clears the bits supported by this chip */ u32 jumbo_frame_sz; } rtl_chip_info[] = { _R("RTL8168B/8111B", CFG_METHOD_1, (Reserved2_data << Reserved2_shift) | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_4k), _R("RTL8168B/8111B", CFG_METHOD_2, (Reserved2_data << Reserved2_shift) | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_4k), _R("RTL8168B/8111B", CFG_METHOD_3, (Reserved2_data << Reserved2_shift) | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_4k), _R("RTL8168C/8111C", CFG_METHOD_4, RxCfg_128_int_en | RxCfg_fet_multi_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_6k), _R("RTL8168C/8111C", CFG_METHOD_5, RxCfg_128_int_en | RxCfg_fet_multi_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_6k), _R("RTL8168C/8111C", CFG_METHOD_6, RxCfg_128_int_en | RxCfg_fet_multi_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_6k), _R("RTL8168CP/8111CP", CFG_METHOD_7, RxCfg_128_int_en | RxCfg_fet_multi_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_6k), _R("RTL8168CP/8111CP", CFG_METHOD_8, RxCfg_128_int_en | RxCfg_fet_multi_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_6k), _R("RTL8168D/8111D", CFG_METHOD_9, RxCfg_128_int_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168D/8111D", CFG_METHOD_10, RxCfg_128_int_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168DP/8111DP", CFG_METHOD_11, RxCfg_128_int_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168DP/8111DP", CFG_METHOD_12, RxCfg_128_int_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168DP/8111DP", CFG_METHOD_13, RxCfg_128_int_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168E/8111E", CFG_METHOD_14, RxCfg_128_int_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168E/8111E", CFG_METHOD_15, RxCfg_128_int_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168E-VL/8111E-VL", CFG_METHOD_16, RxCfg_128_int_en | RxEarly_off_V1 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e0080, Jumbo_Frame_9k), _R("RTL8168E-VL/8111E-VL", CFG_METHOD_17, RxCfg_128_int_en | RxEarly_off_V1 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168F/8111F", CFG_METHOD_18, RxCfg_128_int_en | RxEarly_off_V1 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168F/8111F", CFG_METHOD_19, RxCfg_128_int_en | RxEarly_off_V1 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8411", CFG_METHOD_20, RxCfg_128_int_en | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e1880, Jumbo_Frame_9k), _R("RTL8168G/8111G", CFG_METHOD_21, RxCfg_128_int_en | RxEarly_off_V2 | Rx_Single_fetch_V2 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e5880, Jumbo_Frame_9k), _R("RTL8168G/8111G", CFG_METHOD_22, RxCfg_128_int_en | RxEarly_off_V2 | Rx_Single_fetch_V2 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e5880, Jumbo_Frame_9k), _R("RTL8168EP/8111EP", CFG_METHOD_23, RxCfg_128_int_en | RxEarly_off_V2 | Rx_Single_fetch_V2 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e5880, Jumbo_Frame_9k), _R("RTL8168GU/8111GU", CFG_METHOD_24, RxCfg_128_int_en | RxEarly_off_V2 | Rx_Single_fetch_V2 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e5880, Jumbo_Frame_9k), _R("RTL8168GU/8111GU", CFG_METHOD_25, RxCfg_128_int_en | RxEarly_off_V2 | Rx_Single_fetch_V2 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e5880, Jumbo_Frame_9k), _R("8411B", CFG_METHOD_26, RxCfg_128_int_en | RxEarly_off_V2 | Rx_Single_fetch_V2 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e5880, Jumbo_Frame_9k), _R("RTL8168EP/8111EP", CFG_METHOD_27, RxCfg_128_int_en | RxEarly_off_V2 | Rx_Single_fetch_V2 | (RX_DMA_BURST << RxCfgDMAShift), 0xff7e5880, Jumbo_Frame_9k), _R("RTL8168EP/8111EP", CFG_METHOD_28, RxCfg_128_int_