555 lines
15 KiB
C++
555 lines
15 KiB
C++
/* D-Link DL2000-based Gigabit Ethernet Adapter Linux driver */
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/*
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Copyright (c) 2001, 2002 by D-Link Corporation
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Written by Edward Peng.<edward_peng@dlink.com.tw>
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Created 03-May-2001, base on Linux' sundance.c.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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*/
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#ifndef __DL2K_H__
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#define __DL2K_H__
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/init.h>
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#include <linux/crc32.h>
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#include <linux/ethtool.h>
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#include <linux/bitops.h>
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#include <asm/processor.h> /* Processor type for cache alignment. */
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#include <asm/io.h>
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#include <asm/uaccess.h>
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#include <linux/delay.h>
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#include <linux/spinlock.h>
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#include <linux/time.h>
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#define TX_RING_SIZE 256
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#define TX_QUEUE_LEN (TX_RING_SIZE - 1) /* Limit ring entries actually used.*/
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#define RX_RING_SIZE 256
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#define TX_TOTAL_SIZE TX_RING_SIZE*sizeof(struct netdev_desc)
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#define RX_TOTAL_SIZE RX_RING_SIZE*sizeof(struct netdev_desc)
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/* This driver was written to use PCI memory space, however x86-oriented
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hardware often uses I/O space accesses. */
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#ifndef MEM_MAPPING
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#undef readb
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#undef readw
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#undef readl
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#undef writeb
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#undef writew
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#undef writel
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#define readb inb
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#define readw inw
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#define readl inl
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#define writeb outb
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#define writew outw
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#define writel outl
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#endif
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/* Offsets to the device registers.
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Unlike software-only systems, device drivers interact with complex hardware.
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It's not useful to define symbolic names for every register bit in the
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device. The name can only partially document the semantics and make
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the driver longer and more difficult to read.
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In general, only the important configuration values or bits changed
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multiple times should be defined symbolically.
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*/
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enum dl2x_offsets {
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/* I/O register offsets */
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DMACtrl = 0x00,
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RxDMAStatus = 0x08,
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TFDListPtr0 = 0x10,
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TFDListPtr1 = 0x14,
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TxDMABurstThresh = 0x18,
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TxDMAUrgentThresh = 0x19,
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TxDMAPollPeriod = 0x1a,
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RFDListPtr0 = 0x1c,
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RFDListPtr1 = 0x20,
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RxDMABurstThresh = 0x24,
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RxDMAUrgentThresh = 0x25,
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RxDMAPollPeriod = 0x26,
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RxDMAIntCtrl = 0x28,
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DebugCtrl = 0x2c,
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ASICCtrl = 0x30,
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FifoCtrl = 0x38,
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RxEarlyThresh = 0x3a,
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FlowOffThresh = 0x3c,
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FlowOnThresh = 0x3e,
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TxStartThresh = 0x44,
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EepromData = 0x48,
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EepromCtrl = 0x4a,
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ExpromAddr = 0x4c,
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Exprodata = 0x50,
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WakeEvent = 0x51,
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CountDown = 0x54,
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IntStatusAck = 0x5a,
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IntEnable = 0x5c,
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IntStatus = 0x5e,
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TxStatus = 0x60,
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MACCtrl = 0x6c,
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VLANTag = 0x70,
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PhyCtrl = 0x76,
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StationAddr0 = 0x78,
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StationAddr1 = 0x7a,
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StationAddr2 = 0x7c,
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VLANId = 0x80,
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MaxFrameSize = 0x86,
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ReceiveMode = 0x88,
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HashTable0 = 0x8c,
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HashTable1 = 0x90,
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RmonStatMask = 0x98,
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StatMask = 0x9c,
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RxJumboFrames = 0xbc,
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TCPCheckSumErrors = 0xc0,
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IPCheckSumErrors = 0xc2,
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UDPCheckSumErrors = 0xc4,
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TxJumboFrames = 0xf4,
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/* Ethernet MIB statistic register offsets */
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OctetRcvOk = 0xa8,
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McstOctetRcvOk = 0xac,
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BcstOctetRcvOk = 0xb0,
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FramesRcvOk = 0xb4,
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McstFramesRcvdOk = 0xb8,
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BcstFramesRcvdOk = 0xbe,
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MacControlFramesRcvd = 0xc6,
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FrameTooLongErrors = 0xc8,
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InRangeLengthErrors = 0xca,
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FramesCheckSeqErrors = 0xcc,
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FramesLostRxErrors = 0xce,
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OctetXmtOk = 0xd0,
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McstOctetXmtOk = 0xd4,
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BcstOctetXmtOk = 0xd8,
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FramesXmtOk = 0xdc,
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McstFramesXmtdOk = 0xe0,
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FramesWDeferredXmt = 0xe4,
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LateCollisions = 0xe8,
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MultiColFrames = 0xec,
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SingleColFrames = 0xf0,
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BcstFramesXmtdOk = 0xf6,
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CarrierSenseErrors = 0xf8,
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MacControlFramesXmtd = 0xfa,
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FramesAbortXSColls = 0xfc,
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FramesWEXDeferal = 0xfe,
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/* RMON statistic register offsets */
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EtherStatsCollisions = 0x100,
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EtherStatsOctetsTransmit = 0x104,
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EtherStatsPktsTransmit = 0x108,
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EtherStatsPkts64OctetTransmit = 0x10c,
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EtherStats65to127OctetsTransmit = 0x110,
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EtherStatsPkts128to255OctetsTransmit = 0x114,
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EtherStatsPkts256to511OctetsTransmit = 0x118,
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EtherStatsPkts512to1023OctetsTransmit = 0x11c,
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EtherStatsPkts1024to1518OctetsTransmit = 0x120,
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EtherStatsCRCAlignErrors = 0x124,
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EtherStatsUndersizePkts = 0x128,
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EtherStatsFragments = 0x12c,
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EtherStatsJabbers = 0x130,
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EtherStatsOctets = 0x134,
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EtherStatsPkts = 0x138,
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EtherStats64Octets = 0x13c,
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EtherStatsPkts65to127Octets = 0x140,
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EtherStatsPkts128to255Octets = 0x144,
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EtherStatsPkts256to511Octets = 0x148,
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EtherStatsPkts512to1023Octets = 0x14c,
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EtherStatsPkts1024to1518Octets = 0x150,
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};
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/* Bits in the interrupt status/mask registers. */
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enum IntStatus_bits {
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InterruptStatus = 0x0001,
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HostError = 0x0002,
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MACCtrlFrame = 0x0008,
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TxComplete = 0x0004,
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RxComplete = 0x0010,
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RxEarly = 0x0020,
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IntRequested = 0x0040,
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UpdateStats = 0x0080,
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LinkEvent = 0x0100,
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TxDMAComplete = 0x0200,
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RxDMAComplete = 0x0400,
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RFDListEnd = 0x0800,
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RxDMAPriority = 0x1000,
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};
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/* Bits in the ReceiveMode register. */
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enum ReceiveMode_bits {
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ReceiveUnicast = 0x0001,
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ReceiveMulticast = 0x0002,
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ReceiveBroadcast = 0x0004,
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ReceiveAllFrames = 0x0008,
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ReceiveMulticastHash = 0x0010,
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ReceiveIPMulticast = 0x0020,
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ReceiveVLANMatch = 0x0100,
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ReceiveVLANHash = 0x0200,
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};
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/* Bits in MACCtrl. */
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enum MACCtrl_bits {
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DuplexSelect = 0x20,
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TxFlowControlEnable = 0x80,
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RxFlowControlEnable = 0x0100,
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RcvFCS = 0x200,
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AutoVLANtagging = 0x1000,
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AutoVLANuntagging = 0x2000,
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StatsEnable = 0x00200000,
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StatsDisable = 0x00400000,
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StatsEnabled = 0x00800000,
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TxEnable = 0x01000000,
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TxDisable = 0x02000000,
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TxEnabled = 0x04000000,
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RxEnable = 0x08000000,
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RxDisable = 0x10000000,
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RxEnabled = 0x20000000,
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};
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enum ASICCtrl_LoWord_bits {
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PhyMedia = 0x0080,
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};
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enum ASICCtrl_HiWord_bits {
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GlobalReset = 0x0001,
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RxReset = 0x0002,
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TxReset = 0x0004,
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DMAReset = 0x0008,
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FIFOReset = 0x0010,
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NetworkReset = 0x0020,
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HostReset = 0x0040,
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ResetBusy = 0x0400,
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};
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/* Transmit Frame Control bits */
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enum TFC_bits {
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DwordAlign = 0x00000000,
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WordAlignDisable = 0x00030000,
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WordAlign = 0x00020000,
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TCPChecksumEnable = 0x00040000,
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UDPChecksumEnable = 0x00080000,
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IPChecksumEnable = 0x00100000,
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FCSAppendDisable = 0x00200000,
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TxIndicate = 0x00400000,
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TxDMAIndicate = 0x00800000,
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FragCountShift = 24,
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VLANTagInsert = 0x0000000010000000,
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TFDDone = 0x80000000,
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VIDShift = 32,
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UsePriorityShift = 48,
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};
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/* Receive Frames Status bits */
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enum RFS_bits {
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RxFIFOOverrun = 0x00010000,
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RxRuntFrame = 0x00020000,
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RxAlignmentError = 0x00040000,
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RxFCSError = 0x00080000,
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RxOverSizedFrame = 0x00100000,
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RxLengthError = 0x00200000,
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VLANDetected = 0x00400000,
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TCPDetected = 0x00800000,
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TCPError = 0x01000000,
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UDPDetected = 0x02000000,
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UDPError = 0x04000000,
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IPDetected = 0x08000000,
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IPError = 0x10000000,
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FrameStart = 0x20000000,
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FrameEnd = 0x40000000,
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RFDDone = 0x80000000,
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TCIShift = 32,
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RFS_Errors = 0x003f0000,
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};
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#define MII_RESET_TIME_OUT 10000
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/* MII register */
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enum _mii_reg {
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MII_BMCR = 0,
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MII_BMSR = 1,
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MII_PHY_ID1 = 2,
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MII_PHY_ID2 = 3,
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MII_ANAR = 4,
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MII_ANLPAR = 5,
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MII_ANER = 6,
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MII_ANNPT = 7,
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MII_ANLPRNP = 8,
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MII_MSCR = 9,
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MII_MSSR = 10,
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MII_ESR = 15,
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MII_PHY_SCR = 16,
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};
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/* PCS register */
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enum _pcs_reg {
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PCS_BMCR = 0,
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PCS_BMSR = 1,
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PCS_ANAR = 4,
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PCS_ANLPAR = 5,
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PCS_ANER = 6,
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PCS_ANNPT = 7,
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PCS_ANLPRNP = 8,
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PCS_ESR = 15,
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};
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/* Basic Mode Control Register */
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enum _mii_bmcr {
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MII_BMCR_RESET = 0x8000,
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MII_BMCR_LOOP_BACK = 0x4000,
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MII_BMCR_SPEED_LSB = 0x2000,
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MII_BMCR_AN_ENABLE = 0x1000,
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MII_BMCR_POWER_DOWN = 0x0800,
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MII_BMCR_ISOLATE = 0x0400,
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MII_BMCR_RESTART_AN = 0x0200,
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MII_BMCR_DUPLEX_MODE = 0x0100,
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MII_BMCR_COL_TEST = 0x0080,
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MII_BMCR_SPEED_MSB = 0x0040,
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MII_BMCR_SPEED_RESERVED = 0x003f,
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MII_BMCR_SPEED_10 = 0,
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MII_BMCR_SPEED_100 = MII_BMCR_SPEED_LSB,
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MII_BMCR_SPEED_1000 = MII_BMCR_SPEED_MSB,
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};
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/* Basic Mode Status Register */
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enum _mii_bmsr {
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MII_BMSR_100BT4 = 0x8000,
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MII_BMSR_100BX_FD = 0x4000,
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MII_BMSR_100BX_HD = 0x2000,
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MII_BMSR_10BT_FD = 0x1000,
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MII_BMSR_10BT_HD = 0x0800,
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MII_BMSR_100BT2_FD = 0x0400,
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MII_BMSR_100BT2_HD = 0x0200,
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MII_BMSR_EXT_STATUS = 0x0100,
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MII_BMSR_PREAMBLE_SUPP = 0x0040,
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MII_BMSR_AN_COMPLETE = 0x0020,
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MII_BMSR_REMOTE_FAULT = 0x0010,
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MII_BMSR_AN_ABILITY = 0x0008,
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MII_BMSR_LINK_STATUS = 0x0004,
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MII_BMSR_JABBER_DETECT = 0x0002,
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MII_BMSR_EXT_CAP = 0x0001,
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};
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/* ANAR */
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enum _mii_anar {
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MII_ANAR_NEXT_PAGE = 0x8000,
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MII_ANAR_REMOTE_FAULT = 0x4000,
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MII_ANAR_ASYMMETRIC = 0x0800,
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MII_ANAR_PAUSE = 0x0400,
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MII_ANAR_100BT4 = 0x0200,
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MII_ANAR_100BX_FD = 0x0100,
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MII_ANAR_100BX_HD = 0x0080,
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MII_ANAR_10BT_FD = 0x0020,
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MII_ANAR_10BT_HD = 0x0010,
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MII_ANAR_SELECTOR = 0x001f,
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MII_IEEE8023_CSMACD = 0x0001,
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};
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/* ANLPAR */
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enum _mii_anlpar {
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MII_ANLPAR_NEXT_PAGE = MII_ANAR_NEXT_PAGE,
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MII_ANLPAR_REMOTE_FAULT = MII_ANAR_REMOTE_FAULT,
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MII_ANLPAR_ASYMMETRIC = MII_ANAR_ASYMMETRIC,
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MII_ANLPAR_PAUSE = MII_ANAR_PAUSE,
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MII_ANLPAR_100BT4 = MII_ANAR_100BT4,
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MII_ANLPAR_100BX_FD = MII_ANAR_100BX_FD,
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MII_ANLPAR_100BX_HD = MII_ANAR_100BX_HD,
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MII_ANLPAR_10BT_FD = MII_ANAR_10BT_FD,
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MII_ANLPAR_10BT_HD = MII_ANAR_10BT_HD,
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MII_ANLPAR_SELECTOR = MII_ANAR_SELECTOR,
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};
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/* Auto-Negotiation Expansion Register */
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enum _mii_aner {
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MII_ANER_PAR_DETECT_FAULT = 0x0010,
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MII_ANER_LP_NEXTPAGABLE = 0x0008,
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MII_ANER_NETXTPAGABLE = 0x0004,
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MII_ANER_PAGE_RECEIVED = 0x0002,
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MII_ANER_LP_NEGOTIABLE = 0x0001,
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};
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/* MASTER-SLAVE Control Register */
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enum _mii_mscr {
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MII_MSCR_TEST_MODE = 0xe000,
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MII_MSCR_CFG_ENABLE = 0x1000,
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MII_MSCR_CFG_VALUE = 0x0800,
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MII_MSCR_PORT_VALUE = 0x0400,
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MII_MSCR_1000BT_FD = 0x0200,
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MII_MSCR_1000BT_HD = 0X0100,
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};
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/* MASTER-SLAVE Status Register */
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enum _mii_mssr {
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MII_MSSR_CFG_FAULT = 0x8000,
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MII_MSSR_CFG_RES = 0x4000,
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MII_MSSR_LOCAL_RCV_STATUS = 0x2000,
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MII_MSSR_REMOTE_RCVR = 0x1000,
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MII_MSSR_LP_1000BT_FD = 0x0800,
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MII_MSSR_LP_1000BT_HD = 0x0400,
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MII_MSSR_IDLE_ERR_COUNT = 0x00ff,
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};
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/* IEEE Extened Status Register */
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enum _mii_esr {
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MII_ESR_1000BX_FD = 0x8000,
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MII_ESR_1000BX_HD = 0x4000,
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MII_ESR_1000BT_FD = 0x2000,
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MII_ESR_1000BT_HD = 0x1000,
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};
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/* PHY Specific Control Register */
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#if 0
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typedef union t_MII_PHY_SCR {
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u16 image;
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struct {
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u16 disable_jabber:1; // bit 0
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u16 polarity_reversal:1; // bit 1
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u16 SEQ_test:1; // bit 2
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u16 _bit_3:1; // bit 3
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u16 disable_CLK125:1; // bit 4
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u16 mdi_crossover_mode:2; // bit 6:5
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u16 enable_ext_dist:1; // bit 7
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u16 _bit_8_9:2; // bit 9:8
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u16 force_link:1; // bit 10
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u16 assert_CRS:1; // bit 11
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u16 rcv_fifo_depth:2; // bit 13:12
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u16 xmit_fifo_depth:2; // bit 15:14
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} bits;
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} PHY_SCR_t, *PPHY_SCR_t;
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#endif
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typedef enum t_MII_ADMIN_STATUS {
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adm_reset,
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adm_operational,
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adm_loopback,
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adm_power_down,
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adm_isolate
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} MII_ADMIN_t, *PMII_ADMIN_t;
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/* Physical Coding Sublayer Management (PCS) */
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/* PCS control and status registers bitmap as the same as MII */
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/* PCS Extended Status register bitmap as the same as MII */
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/* PCS ANAR */
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enum _pcs_anar {
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PCS_ANAR_NEXT_PAGE = 0x8000,
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PCS_ANAR_REMOTE_FAULT = 0x3000,
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PCS_ANAR_ASYMMETRIC = 0x0100,
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PCS_ANAR_PAUSE = 0x0080,
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PCS_ANAR_HALF_DUPLEX = 0x0040,
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PCS_ANAR_FULL_DUPLEX = 0x0020,
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};
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/* PCS ANLPAR */
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enum _pcs_anlpar {
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PCS_ANLPAR_NEXT_PAGE = PCS_ANAR_NEXT_PAGE,
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PCS_ANLPAR_REMOTE_FAULT = PCS_ANAR_REMOTE_FAULT,
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PCS_ANLPAR_ASYMMETRIC = PCS_ANAR_ASYMMETRIC,
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PCS_ANLPAR_PAUSE = PCS_ANAR_PAUSE,
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PCS_ANLPAR_HALF_DUPLEX = PCS_ANAR_HALF_DUPLEX,
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PCS_ANLPAR_FULL_DUPLEX = PCS_ANAR_FULL_DUPLEX,
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};
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typedef struct t_SROM {
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u16 config_param; /* 0x00 */
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u16 asic_ctrl; /* 0x02 */
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u16 sub_vendor_id; /* 0x04 */
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u16 sub_system_id; /* 0x06 */
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u16 reserved1[12]; /* 0x08-0x1f */
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u8 mac_addr[6]; /* 0x20-0x25 */
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u8 reserved2[10]; /* 0x26-0x2f */
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u8 sib[204]; /* 0x30-0xfb */
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u32 crc; /* 0xfc-0xff */
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} SROM_t, *PSROM_t;
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/* Ioctl custom data */
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struct ioctl_data {
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char signature[10];
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int cmd;
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int len;
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char *data;
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};
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struct mii_data {
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__u16 reserved;
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__u16 reg_num;
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__u16 in_value;
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__u16 out_value;
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};
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/* The Rx and Tx buffer descriptors. */
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struct netdev_desc {
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__le64 next_desc;
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__le64 status;
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__le64 fraginfo;
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};
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#define PRIV_ALIGN 15 /* Required alignment mask */
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/* Use __attribute__((aligned (L1_CACHE_BYTES))) to maintain alignment
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within the structure. */
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struct netdev_private {
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/* Descriptor rings first for alignment. */
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struct netdev_desc *rx_ring;
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struct netdev_desc *tx_ring;
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struct sk_buff *rx_skbuff[RX_RING_SIZE];
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struct sk_buff *tx_skbuff[TX_RING_SIZE];
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dma_addr_t tx_ring_dma;
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dma_addr_t rx_ring_dma;
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struct pci_dev *pdev;
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spinlock_t tx_lock;
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spinlock_t rx_lock;
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struct net_device_stats stats;
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unsigned int rx_buf_sz; /* Based on MTU+slack. */
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unsigned int speed; /* Operating speed */
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unsigned int vlan; /* VLAN Id */
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unsigned int chip_id; /* PCI table chip id */
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unsigned int rx_coalesce; /* Maximum frames each RxDMAComplete intr */
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unsigned int rx_timeout; /* Wait time between RxDMAComplete intr */
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unsigned int tx_coalesce; /* Maximum frames each tx interrupt */
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unsigned int full_duplex:1; /* Full-duplex operation requested. */
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unsigned int an_enable:2; /* Auto-Negotiated Enable */
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unsigned int jumbo:1; /* Jumbo frame enable */
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unsigned int coalesce:1; /* Rx coalescing enable */
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unsigned int tx_flow:1; /* Tx flow control enable */
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unsigned int rx_flow:1; /* Rx flow control enable */
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unsigned int phy_media:1; /* 1: fiber, 0: copper */
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unsigned int link_status:1; /* Current link status */
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struct netdev_desc *last_tx; /* Last Tx descriptor used. */
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unsigned long cur_rx, old_rx; /* Producer/consumer ring indices */
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unsigned long cur_tx, old_tx;
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struct timer_list timer;
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int wake_polarity;
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char name[256]; /* net device description */
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u8 duplex_polarity;
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u16 mcast_filter[4];
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u16 advertising; /* NWay media advertisement */
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u16 negotiate; /* Negotiated media */
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int phy_addr; /* PHY addresses. */
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};
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/* The station address location in the EEPROM. */
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/* The struct pci_device_id consist of:
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vendor, device Vendor and device ID to match (or PCI_ANY_ID)
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subvendor, subdevice Subsystem vendor and device ID to match (or PCI_ANY_ID)
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class Device class to match. The class_mask tells which bits
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class_mask of the class are honored during the comparison.
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driver_data Data private to the driver.
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*/
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static DEFINE_PCI_DEVICE_TABLE(rio_pci_tbl) = {
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{0x1186, 0x4000, PCI_ANY_ID, PCI_ANY_ID, },
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{0x13f0, 0x1021, PCI_ANY_ID, PCI_ANY_ID, },
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{ }
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};
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MODULE_DEVICE_TABLE (pci, rio_pci_tbl);
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#define TX_TIMEOUT (4*HZ)
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#define PACKET_SIZE 1536
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#define MAX_JUMBO 8000
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#define RIO_IO_SIZE 340
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#define DEFAULT_RXC 5
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#define DEFAULT_RXT 750
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#define DEFAULT_TXC 1
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#define MAX_TXC 8
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#endif /* __DL2K_H__ */
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