gt96100eth.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:7k
- /*
- * Copyright 2000 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * stevel@mvista.com or source@mvista.com
- *
- * ########################################################################
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- *
- * Ethernet driver definitions for the MIPS GT96100 Advanced
- * Communication Controller.
- *
- */
- #ifndef _GT96100ETH_H
- #define _GT96100ETH_H
- #include <asm/galileo-boards/gt96100.h>
- /* Keep the ring sizes a power of two for efficiency. */
- #define TX_RING_SIZE 16
- #define RX_RING_SIZE 32
- #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
- #define RX_HASH_TABLE_SIZE 16384
- #define HASH_HOP_NUMBER 12
- #define NUM_INTERFACES 2
- #define GT96100ETH_TX_TIMEOUT HZ
- #define GT96100_ETH0_BASE (MIPS_GT96100_BASE + GT96100_ETH_PORT_CONFIG)
- #define GT96100_ETH1_BASE (GT96100_ETH0_BASE + GT96100_ETH_IO_SIZE)
- #ifdef CONFIG_MIPS_EV96100
- #define GT96100_ETHER0_IRQ 4
- #define GT96100_ETHER1_IRQ 4
- #else
- #define GT96100_ETHER0_IRQ -1
- #define GT96100_ETHER1_IRQ -1
- #endif
- #define GT96100ETH_READ(gp, offset)
- GT96100_READ((gp->port_offset + offset))
- #define GT96100ETH_WRITE(gp, offset, data)
- GT96100_WRITE((gp->port_offset + offset), data)
- #define GT96100ETH_SETBIT(gp, offset, bits) {
- u32 val = GT96100ETH_READ(gp, offset); val |= (u32)(bits);
- GT96100ETH_WRITE(gp, offset, val); }
- #define GT96100ETH_CLRBIT(gp, offset, bits) {
- u32 val = GT96100ETH_READ(gp, offset); val &= (u32)(~(bits));
- GT96100ETH_WRITE(gp, offset, val); }
- /* Bit definitions of the SMI Reg */
- enum {
- smirDataMask = 0xffff,
- smirPhyAdMask = 0x1f << 16,
- smirPhyAdBit = 16,
- smirRegAdMask = 0x1f << 21,
- smirRegAdBit = 21,
- smirOpCode = 1 << 26,
- smirReadValid = 1 << 27,
- smirBusy = 1 << 28
- };
- /* Bit definitions of the Port Config Reg */
- enum pcr_bits {
- pcrPM = 1,
- pcrRBM = 2,
- pcrPBF = 4,
- pcrEN = 1 << 7,
- pcrLPBKMask = 0x3 << 8,
- pcrLPBKBit = 8,
- pcrFC = 1 << 10,
- pcrHS = 1 << 12,
- pcrHM = 1 << 13,
- pcrHDM = 1 << 14,
- pcrHD = 1 << 15,
- pcrISLMask = 0x7 << 28,
- pcrISLBit = 28,
- pcrACCS = 1 << 31
- };
- /* Bit definitions of the Port Config Extend Reg */
- enum pcxr_bits {
- pcxrIGMP = 1,
- pcxrSPAN = 2,
- pcxrPAR = 4,
- pcxrPRIOtxMask = 0x7 << 3,
- pcxrPRIOtxBit = 3,
- pcxrPRIOrxMask = 0x3 << 6,
- pcxrPRIOrxBit = 6,
- pcxrPRIOrxOverride = 1 << 8,
- pcxrDPLXen = 1 << 9,
- pcxrFCTLen = 1 << 10,
- pcxrFLP = 1 << 11,
- pcxrFCTL = 1 << 12,
- pcxrMFLMask = 0x3 << 14,
- pcxrMFLBit = 14,
- pcxrMIBclrMode = 1 << 16,
- pcxrSpeed = 1 << 18,
- pcxrSpeeden = 1 << 19,
- pcxrRMIIen = 1 << 20,
- pcxrDSCPen = 1 << 21
- };
- /* Bit definitions of the Port Command Reg */
- enum pcmr_bits {
- pcmrFJ = 1 << 15
- };
- /* Bit definitions of the Port Status Reg */
- enum psr_bits {
- psrSpeed = 1,
- psrDuplex = 2,
- psrFctl = 4,
- psrLink = 8,
- psrPause = 1 << 4,
- psrTxLow = 1 << 5,
- psrTxHigh = 1 << 6,
- psrTxInProg = 1 << 7
- };
- /* Bit definitions of the SDMA Config Reg */
- enum sdcr_bits {
- sdcrRCMask = 0xf << 2,
- sdcrRCBit = 2,
- sdcrBLMR = 1 << 6,
- sdcrBLMT = 1 << 7,
- sdcrPOVR = 1 << 8,
- sdcrRIFB = 1 << 9,
- sdcrBSZMask = 0x3 << 12,
- sdcrBSZBit = 12
- };
- /* Bit definitions of the SDMA Command Reg */
- enum sdcmr_bits {
- sdcmrERD = 1 << 7,
- sdcmrAR = 1 << 15,
- sdcmrSTDH = 1 << 16,
- sdcmrSTDL = 1 << 17,
- sdcmrTXDH = 1 << 23,
- sdcmrTXDL = 1 << 24,
- sdcmrAT = 1 << 31
- };
- /* Bit definitions of the Interrupt Cause Reg */
- enum icr_bits {
- icrRxBuffer = 1,
- icrTxBufferHigh = 1 << 2,
- icrTxBufferLow = 1 << 3,
- icrTxEndHigh = 1 << 6,
- icrTxEndLow = 1 << 7,
- icrRxError = 1 << 8,
- icrTxErrorHigh = 1 << 10,
- icrTxErrorLow = 1 << 11,
- icrRxOVR = 1 << 12,
- icrTxUdr = 1 << 13,
- icrRxBufferQ0 = 1 << 16,
- icrRxBufferQ1 = 1 << 17,
- icrRxBufferQ2 = 1 << 18,
- icrRxBufferQ3 = 1 << 19,
- icrRxErrorQ0 = 1 << 20,
- icrRxErrorQ1 = 1 << 21,
- icrRxErrorQ2 = 1 << 22,
- icrRxErrorQ3 = 1 << 23,
- icrMIIPhySTC = 1 << 28,
- icrSMIdone = 1 << 29,
- icrEtherIntSum = 1 << 31
- };
- /* The Rx and Tx descriptor lists. */
- typedef struct {
- u32 cmdstat;
- u32 byte_cnt;
- u32 buff_ptr;
- u32 next;
- } gt96100_td_t;
- #define tdByteCntBit 16
- typedef struct {
- u32 cmdstat;
- u32 buff_cnt_sz;
- u32 buff_ptr;
- u32 next;
- } gt96100_rd_t;
- #define rdBuffSzBit 16
- #define rdByteCntMask 0xffff
- /* Values for the Tx command-status descriptor entry. */
- enum td_cmdstat {
- txOwn = 1 << 31,
- txAutoMode = 1 << 30,
- txEI = 1 << 23,
- txGenCRC = 1 << 22,
- txPad = 1 << 18,
- txFirst = 1 << 17,
- txLast = 1 << 16,
- txErrorSummary = 1 << 15,
- txReTxCntMask = 0x0f << 10,
- txReTxCntBit = 10,
- txCollision = 1 << 9,
- txReTxLimit = 1 << 8,
- txUnderrun = 1 << 6,
- txLateCollision = 1 << 5
- };
- #define TxReTxCntBit 10
- /* Values for the Rx command-status descriptor entry. */
- enum rd_cmdstat {
- rxOwn = 1 << 31,
- rxAutoMode = 1 << 30,
- rxEI = 1 << 23,
- rxFirst = 1 << 17,
- rxLast = 1 << 16,
- rxErrorSummary = 1 << 15,
- rxIGMP = 1 << 14,
- rxHashExpired = 1 << 13,
- rxMissedFrame = 1 << 12,
- rxFrameType = 1 << 11,
- rxShortFrame = 1 << 8,
- rxMaxFrameLen = 1 << 7,
- rxOverrun = 1 << 6,
- rxCollision = 1 << 4,
- rxCRCError = 1
- };
- /* Bit fields of a Hash Table Entry */
- enum hash_table_entry {
- hteValid = 1,
- hteSkip = 2,
- hteRD = 4
- };
- // The MIB counters
- typedef struct {
- u32 byteReceived;
- u32 byteSent;
- u32 framesReceived;
- u32 framesSent;
- u32 totalByteReceived;
- u32 totalFramesReceived;
- u32 broadcastFramesReceived;
- u32 multicastFramesReceived;
- u32 cRCError;
- u32 oversizeFrames;
- u32 fragments;
- u32 jabber;
- u32 collision;
- u32 lateCollision;
- u32 frames64;
- u32 frames65_127;
- u32 frames128_255;
- u32 frames256_511;
- u32 frames512_1023;
- u32 frames1024_MaxSize;
- u32 macRxError;
- u32 droppedFrames;
- u32 outMulticastFrames;
- u32 outBroadcastFrames;
- u32 undersizeFrames;
- } mib_counters_t;
- struct gt96100_private {
- gt96100_rd_t *rx_ring;
- gt96100_td_t *tx_ring;
- // The Rx and Tx rings must be 16-byte aligned
- dma_addr_t rx_ring_dma;
- dma_addr_t tx_ring_dma;
- char *hash_table;
- // The Hash Table must be 8-byte aligned
- dma_addr_t hash_table_dma;
- int hash_mode;
- // The Rx buffers must be 8-byte aligned
- char *rx_buff[RX_RING_SIZE];
- // Tx buffers (tx_skbuff[i]->data) with less than 8 bytes
- // of payload must be 8-byte aligned
- struct sk_buff *tx_skbuff[TX_RING_SIZE];
- int rx_next_out; /* The next free ring entry to receive */
- int tx_next_in; /* The next free ring entry to send */
- int tx_next_out; /* The last ring entry the ISR processed */
- int tx_count; /* current # of pkts waiting to be sent in Tx ring */
- mib_counters_t mib;
- struct net_device_stats stats;
- int io_size;
- int port_num; // 0 or 1
- u32 port_offset;
- int phy_addr; // PHY address
- u32 last_psr; // last value of the port status register
- int options; /* User-settable misc. driver options. */
- int drv_flags;
- unsigned char phys[2]; /* MII device addresses. */
- spinlock_t lock; /* Serialise access to device */
- };
- #endif