patch-2.4.4 linux/drivers/net/gt96100eth.h

• Lines: 327
• Date: Fri Apr 13 20:26:07 2001
• Orig file: v2.4.3/linux/drivers/net/gt96100eth.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.3/linux/drivers/net/gt96100eth.h linux/drivers/net/gt96100eth.h
@@ -0,0 +1,326 @@
+/*
+ * Copyright 2000 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *         	stevel@mvista.com or support@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 <linux/config.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