DataMuseum.dk

top - metrics - download

    Length: 7548 (0x1d7c)
    Types: TextFile
    Notes: UNIX file
    Names: »el.h«

└─⟦8c4f54e61⟧ Bits:30004068/disk2.imd Interactive TCP/IP v.1.2
└─⟦8c4f54e61⟧ UNIX Filesystem
    └─⟦this⟧ »hb/new/usr/include/sys/el.h« 

TextFile

/*
 *	definitions and declarations for the 3COM 3C503 ethernet driver
 *
 *	Copyrighted as an unpublished work.
 *	(c) Copyright 1988 INTERACTIVE Systems Corporation
 *	All rights reserved.
 *
 *	RESTRICTED RIGHTS:
 *
 *	These programs are supplied under a license.  They may be used,
 *	disclosed, and/or copied only as permitted under such license
 *	agreement.  Any copy must contain the above copyright notice and
 *	this restricted rights notice.  Use, copying, and/or disclosure
 *	of the programs is strictly prohibited unless otherwise provided
 *	in the license agreement.
 */

#ident "@(#)el.h	1.2 - 89/01/20"

/*
 * Ethernet addresses assigned to 3COM
 */
#define EA3COM0	0x02		/* first byte */
#define EA3COM1	0x60		/* second byte */
#define EA3COM2	0x8c		/* third byte */

/*
 * IRQ values
 */
#define ELMINIRQ 2		/* minimum IRQ */
#define ELMAXIRQ 5		/* maximum IRQ */

/*
 * Receive buffer sizes recommended for 8K board.
 * These are page numbers (256 byte pages) with 0x20 added.
 */
#define RCV_START 0x26
#define RCV_STOP 0x40

/*
 * DP8390 NIC LAN controller register offsets - add base address (elbase)
 * to each offset
 */
/* page 0 - write registers */
#define ELCR	0x00		/* Control register */
#define ELPSTART 0x01		/* Page start register */
#define ELPSTOP	0x02		/* Page stop register */
#define ELBNDY	0x03		/* Boundary register */
#define ELTPSR	0x04		/* Transmit page start address */
#define ELTBCR0	0x05		/* Transmit byte count register 0 */
#define ELTBCR1	0x06		/* Transmit byte count register 1 */
#define ELISR	0x07		/* Interrupt status register */
#define ELRSAR0	0x08		/* Remote start address register 0 */
#define ELRSAR1	0x09		/* Remote start address register 1 */
#define ELRBCR0	0x0a		/* Remote byte count register 0 */
#define ELRBCR1	0x0b		/* Remote byte count register 1 */
#define ELRCR	0x0c		/* Receive configuration register */
#define ELTCR	0x0d		/* Transmit configuration register */
#define ELDCR	0x0e		/* Data configuration register */
#define ELIMR	0x0f		/* Interrupt mask register */
/* page 0 - read registers */
#define ELTSR	0x04		/* Transmit status register */
#define ELNCR	0x05		/* Number of collisions register */
#define ELRSR	0x0c		/* Receive status register */
#define ELCNTR0	0x0d		/* Tally counter register 0 (Frame alignment) */
#define ELCNTR1	0x0e		/* Tally counter register 1 (CRC) */
#define ELCNTR2	0x0f		/* Tally counter register 2 (Missed packets) */
/* page 1 - write registers */
#define ELPADR	0x01		/* Physical address register 0 */
#define ELCURR	0x07		/* Current page register */
#define ELMADR	0x08		/* Multicast address register 0 */

/*
 * Gate array register offsets - add base address (elbase) to each offset
 * gabase = elbase + 0x400
 */

#define ELPSTR	0x400		/* Page start */
#define ELPSPR	0x401		/* Page stop */
#define ELDQTR	0x402		/* Drq timer */
#define ELBCFR	0x403		/* Base configuration */
#define ELPCFR	0x404		/* PROM configuration */
#define ELGACFR	0x405		/* GA configuration */
#define ELCTRL	0x406		/* Control register */
#define ELSTREG	0x407		/* Status register */
#define ELIDCFR	0x408		/* Int/DMA register */
#define ELDAMSB	0x409		/* DMA address MSB */
#define ELDALSB	0x40a		/* DMA address LSB */
#define ELVPTR2	0x40b		/* Vector pointer 2 */
#define ELVPTR1	0x40c		/* Vector pointer 1 */
#define ELVPTR0	0x40d		/* Vector pointer 0 */
#define ELRFMSB	0x40e		/* Register file LSB */
#define ELRFLSB	0x40f		/* Register file MSB */

/*
 * bits in GA Control Register (ELCTRL)
 */

#define ELARST	0x01		/* Software reset */
#define ELAXCVR	0x02		/* Transceiver select: 1=BNC, 0=DIX */
#define ELAEALO	0x04		/* Ethernet address low */
#define ELAEAHI	0x08		/* Ethernet address high */
#define ELASHAR	0x10		/* Interrupt share */
#define ELADBSL	0x20		/* Double buffer select */

/*
 * bits in GA Configuration Register (ELGACFR)
 */
#define ELG0K	0x00		/* Memory bank select */
#define ELG8K	0x01		/* Memory bank select */
#define ELG16K	0x02		/* Memory bank select */
#define ELG24K	0x03		/* Memory bank select */
#define ELGRSEL	0x08		/* RAM select */

/*
 * bits in NIC Command Register (ELCR)
 */

#define ELCSTP	0x01		/* Stop */
#define ELCSTA	0x02		/* Start */
#define ELCTXP	0x04		/* Transmit packet */
#define ELCDMA	0x20		/* Complete remote DMA */
#define ELCPG0	0x00		/* Page 0 select */
#define ELCPG1	0x40		/* Page 1 select */
#define ELCPG2	0x80		/* Page 2 select */
#define ELPGMSK	0x3f		/* mask off page select */

/*
 * bits in NIC Receive Configuration Register (ELRCR)
 */

#define ELRSEP	0x01		/* Save error packets */
#define ELRAR	0x02		/* Accept runt packets */
#define ELRAB	0x04		/* Accept broadcast packets */
#define ELRAM	0x08		/* Accept multicast packets */
#define ELRPRO	0x10		/* Promiscuous physical */
#define ELRMON	0x20		/* Monitor mode */

/*
 * bits in NIC Receive Status Register (ELRSR)
 */

#define ELRPRX	0x01		/* Packet received intact */
#define ELRCRC	0x02		/* CRC error */
#define ELRFAE	0x04		/* Frame alignment error */
#define ELRFO	0x08		/* Fifo overrun */
#define ELRMPA	0x10		/* Missed packet */
#define ELRPHY	0x20		/* Physical/multicast address */

/*
 * bits in NIC Transmit Configuration Register (ELTCR)
 */

#define ELTLOOP	0x02		/* normal loopback mode */

/*
 * bits in NIC Transmit Status Register (ELTSR)
 */

#define ELTPTX	0x01		/* Packet transmitted */
#define ELTDFR	0x02		/* Non deferred transmission */
#define ELTCOL	0x04		/* Transmit collided */
#define ELTABT	0x08		/* Transmit aborted (excessive collisions) */
#define ELTCRS	0x10		/* Carrier sense lost */
#define ELTFU	0x20		/* Fifo underrun */

/*
 * bits in NIC Interrupt Mask Register (ELIMR) and Interrupt Status Register
 * (ISR)
 */

#define ELPRXE	0x01		/* Packet received */
#define ELPTXE	0x02		/* Packet transmitted */
#define ELRXEE	0x04		/* Receive error */
#define ELTXEE	0x08		/* Transmit error */
#define ELOVWE	0x10		/* Overwrite warning */
#define ELCNTE	0x20		/* Counter overflow */
#define ELRDCE	0x40		/* DMA complete */
#define ELRRST	0x80		/* Reset status (ISR only) */


/*
 *	streams related definitions
 */

#define ELVPKTSZ	(3*256)
#define ELHIWAT		(16*ELVPKTSZ)
#define ELLOWAT		(8*ELVPKTSZ)
#define ELTXBUFLEN	1536		/* 6 * 256 */
#define ELMAXPKT	1500
#define ELMAXPKTLLC	1497	/* max packet when using LLC1 */
#define ELMINSEND	60	/* 64 - 4 bytes CRC */

/*
 *	debug bits
 */
#define ELTRACE		0x01
#define ELRECV		0x02
#define ELSEND		0x04
#define ELERRS		0x10
#define ELINT		0x20

#ifdef DEBUG
#define ELDEBUG
#endif

/*
 *	board state
 */
#define ELB_IDLE	0
#define ELB_WAITRCV	1
#define ELB_XMTBUSY	2
#define ELB_ERROR	3

/*
 *	structure for front of packet in board buffer
 */
struct rcv_buf {
	unsigned char	status;
	unsigned char	nxtpg;
	short		datalen;
	machdr_t	pkthdr;
};

typedef struct rcv_buf rcv_buf_t;

/*
 *	3COM 3C503 board statistics
 */

#define EL_NSTATS	16

struct elstats {

       /* non-hardware */
   struct llcstats els_llcs;	/* 0-3 */

       /* transmit */
   ulong	els_xpkts;	/* 4 */
   ulong	els_xbytes;	/* 5 */
   ulong	els_excoll;	/* 6 */
   ulong	els_coll;	/* 7 */
   ulong	els_under;	/* 8 */
   ulong	els_carrier;	/* 9 */

       /* receive */
   ulong	els_rpkts;	/* 10 */
   ulong	els_rbytes;	/* 11 */
   ulong	els_fcs;	/* 12 */
   ulong	els_align;	/* 13 */
   ulong	els_overflow;	/* 14 */
   ulong	els_short;	/* 15 */
};

/*
 *	3COM 3C503 board dependent variables.
 *	In a structure to use multiple boards.
 */

struct elvar {
    int el_nxtpkt;		/* page number of next expected packet */
    unsigned char el_onbd;	/* mask to use onboard transceiver */
};