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freebsd-skq/sys/dev/ep/if_epreg.h
gibbs 0edcf3a920 Andres Vega Garcia's improvements to the ep driver. This driver is a merging 
of the 1.1.5 driver, a recent version of the NetBSD driver, Andres'
transmission start threshold code, and all other relavent changes to the driver
since it was brought into 2.0.  The multicast support from NetBSD has not be
folded in yet.  I've tested it under high loads for two weeks and it is now
robust enough to be included in the GENERIC kernel.
Reviewed by: gibbs
Submitted by:	vega@sophia.inria.fr (Andres Vega Garcia)
1994-11-13 10:12:37 +00:00

408 lines
12 KiB
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/*
* Copyright (c) 1993 Herb Peyerl (hpeyerl@novatel.ca) All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer. 2. The name
* of the author may not be used to endorse or promote products derived from
* this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: if_epreg.h,v 1.2 1994/01/10 19:13:50 ats Exp $ Modified by:
*
October 2, 1994
Modified by: Andres Vega Garcia
INRIA - Sophia Antipolis, France
e-mail: avega@sophia.inria.fr
finger: avega@pax.inria.fr
*/
/*
* Ethernet software status per interface.
*/
struct ep_softc {
struct arpcom arpcom; /* Ethernet common part */
short ep_io_addr; /* i/o bus address */
#define MAX_MBS 8 /* # of mbufs we keep around */
struct mbuf *mb[MAX_MBS]; /* spare mbuf storage. */
int next_mb; /* Which mbuf to use next. */
int last_mb; /* Last mbuf. */
struct mbuf *top, *mcur;
short tx_start_thresh; /* Current TX_start_thresh. */
short tx_rate;
short tx_counter;
short rx_early_thresh; /* Current RX_early_thresh. */
short rx_latency;
short rx_avg_pkt;
short cur_len;
caddr_t bpf; /* BPF "magic cookie" */
u_short ep_connectors; /* Connectors on this card. */
int stat; /* some flags */
#define F_RX_FIRST 0x1
#define F_WAIT_TRAIL 0x2
#define F_RX_TRAILER 0x4
#define F_ACCESS_32_BITS 0x100
#ifdef EP_LOCAL_STATS
short tx_underrun;
short rx_no_first;
short rx_no_mbuf;
short rx_bpf_disc;
short rx_overrunf;
short rx_overrunl;
#endif
};
/*
* Some global constants
*/
#define ETHER_MIN_LEN 64
#define ETHER_MAX_LEN 1518
#define ETHER_ADDR_LEN 6
#define TX_INIT_RATE 16
#define TX_INIT_MAX_RATE 64
#define RX_INIT_LATENCY 64
#define RX_INIT_EARLY_THRESH 64
#define MIN_RX_EARLY_THRESHF 16 /* not less than ether_header */
#define MIN_RX_EARLY_THRESHL 4
#define EEPROMSIZE 0x40
#define MAX_EEPROMBUSY 1000
#define EP_LAST_TAG 0xd7
#define EP_MAX_BOARDS 16
#define EP_ID_PORT 0x100
/*
* some macros to acces long named fields
*/
#define IS_BASE (is->id_iobase)
#define BASE (sc->ep_io_addr)
/*
* Commands to read/write EEPROM trough EEPROM command register (Window 0,
* Offset 0xa)
*/
#define EEPROM_CMD_RD 0x0080 /* Read: Address required (5 bits) */
#define EEPROM_CMD_WR 0x0040 /* Write: Address required (5 bits) */
#define EEPROM_CMD_ERASE 0x00c0 /* Erase: Address required (5 bits) */
#define EEPROM_CMD_EWEN 0x0030 /* Erase/Write Enable: No data required */
#define EEPROM_BUSY (1<<15)
#define EEPROM_TST_MODE (1<<14)
/*
* Some short functions, worth to let them be a macro
*/
#define is_eeprom_busy(b) (inw((b)+EP_W0_EEPROM_COMMAND)&EEPROM_BUSY)
#define GO_WINDOW(x) outw(BASE+EP_COMMAND, WINDOW_SELECT|(x))
/**************************************************************************
* *
* These define the EEPROM data structure. They are used in the probe
* function to verify the existance of the adapter after having sent
* the ID_Sequence.
*
* There are others but only the ones we use are defined here.
*
**************************************************************************/
#define EEPROM_NODE_ADDR_0 0x0 /* Word */
#define EEPROM_NODE_ADDR_1 0x1 /* Word */
#define EEPROM_NODE_ADDR_2 0x2 /* Word */
#define EEPROM_PROD_ID 0x3 /* 0x9[0-f]50 */
#define EEPROM_MFG_ID 0x7 /* 0x6d50 */
#define EEPROM_ADDR_CFG 0x8 /* Base addr */
#define EEPROM_RESOURCE_CFG 0x9 /* IRQ. Bits 12-15 */
/**************************************************************************
* *
* These are the registers for the 3Com 3c509 and their bit patterns when *
* applicable. They have been taken out the the "EtherLink III Parallel *
* Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual *
* from 3com. *
* *
**************************************************************************/
#define EP_COMMAND 0x0e /* Write. BASE+0x0e is always a
* command reg. */
#define EP_STATUS 0x0e /* Read. BASE+0x0e is always status
* reg. */
#define EP_WINDOW 0x0f /* Read. BASE+0x0f is always window
* reg. */
/*
* Window 0 registers. Setup.
*/
/* Write */
#define EP_W0_EEPROM_DATA 0x0c
#define EP_W0_EEPROM_COMMAND 0x0a
#define EP_W0_RESOURCE_CFG 0x08
#define EP_W0_ADDRESS_CFG 0x06
#define EP_W0_CONFIG_CTRL 0x04
/* Read */
#define EP_W0_PRODUCT_ID 0x02
#define EP_W0_MFG_ID 0x00
/*
* Window 1 registers. Operating Set.
*/
/* Write */
#define EP_W1_TX_PIO_WR_2 0x02
#define EP_W1_TX_PIO_WR_1 0x00
/* Read */
#define EP_W1_FREE_TX 0x0c
#define EP_W1_TX_STATUS 0x0b /* byte */
#define EP_W1_TIMER 0x0a /* byte */
#define EP_W1_RX_STATUS 0x08
#define EP_W1_RX_PIO_RD_2 0x02
#define EP_W1_RX_PIO_RD_1 0x00
/*
* Window 2 registers. Station Address Setup/Read
*/
/* Read/Write */
#define EP_W2_ADDR_5 0x05
#define EP_W2_ADDR_4 0x04
#define EP_W2_ADDR_3 0x03
#define EP_W2_ADDR_2 0x02
#define EP_W2_ADDR_1 0x01
#define EP_W2_ADDR_0 0x00
/*
* Window 3 registers. FIFO Management.
*/
/* Read */
#define EP_W3_FREE_TX 0x0c
#define EP_W3_FREE_RX 0x0a
/*
* Window 4 registers. Diagnostics.
*/
/* Read/Write */
#define EP_W4_MEDIA_TYPE 0x0a
#define EP_W4_CTRLR_STATUS 0x08
#define EP_W4_NET_DIAG 0x06
#define EP_W4_FIFO_DIAG 0x04
#define EP_W4_HOST_DIAG 0x02
#define EP_W4_TX_DIAG 0x00
/*
* Window 5 Registers. Results and Internal status.
*/
/* Read */
#define EP_W5_READ_0_MASK 0x0c
#define EP_W5_INTR_MASK 0x0a
#define EP_W5_RX_FILTER 0x08
#define EP_W5_RX_EARLY_THRESH 0x06
#define EP_W5_TX_AVAIL_THRESH 0x02
#define EP_W5_TX_START_THRESH 0x00
/*
* Window 6 registers. Statistics.
*/
/* Read/Write */
#define TX_TOTAL_OK 0x0c
#define RX_TOTAL_OK 0x0a
#define TX_DEFERRALS 0x08
#define RX_FRAMES_OK 0x07
#define TX_FRAMES_OK 0x06
#define RX_OVERRUNS 0x05
#define TX_COLLISIONS 0x04
#define TX_AFTER_1_COLLISION 0x03
#define TX_AFTER_X_COLLISIONS 0x02
#define TX_NO_SQE 0x01
#define TX_CD_LOST 0x00
/****************************************
*
* Register definitions.
*
****************************************/
/*
* Command register. All windows.
*
* 16 bit register.
* 15-11: 5-bit code for command to be executed.
* 10-0: 11-bit arg if any. For commands with no args;
* this can be set to anything.
*/
#define GLOBAL_RESET (u_short) 0x0000 /* Wait at least 1ms
* after issuing */
#define WINDOW_SELECT (u_short) (0x1<<11)
#define START_TRANSCEIVER (u_short) (0x2<<11) /* Read ADDR_CFG reg to
* determine whether
* this is needed. If
* so; wait 800 uSec
* before using trans-
* ceiver. */
#define RX_DISABLE (u_short) (0x3<<11) /* state disabled on
* power-up */
#define RX_ENABLE (u_short) (0x4<<11)
#define RX_RESET (u_short) (0x5<<11)
#define RX_DISCARD_TOP_PACK (u_short) (0x8<<11)
#define TX_ENABLE (u_short) (0x9<<11)
#define TX_DISABLE (u_short) (0xa<<11)
#define TX_RESET (u_short) (0xb<<11)
#define REQ_INTR (u_short) (0xc<<11)
#define SET_INTR_MASK (u_short) (0xe<<11)
#define SET_RD_0_MASK (u_short) (0xf<<11)
#define SET_RX_FILTER (u_short) (0x10<<11)
#define FIL_INDIVIDUAL (u_short) (0x1)
#define FIL_GROUP (u_short) (0x2)
#define FIL_BRDCST (u_short) (0x4)
#define FIL_ALL (u_short) (0x8)
#define SET_RX_EARLY_THRESH (u_short) (0x11<<11)
#define SET_TX_AVAIL_THRESH (u_short) (0x12<<11)
#define SET_TX_START_THRESH (u_short) (0x13<<11)
#define STATS_ENABLE (u_short) (0x15<<11)
#define STATS_DISABLE (u_short) (0x16<<11)
#define STOP_TRANSCEIVER (u_short) (0x17<<11)
/*
* The following C_* acknowledge the various interrupts. Some of them don't
* do anything. See the manual.
*/
#define ACK_INTR (u_short) (0x6800)
#define C_INTR_LATCH (u_short) (ACK_INTR|0x1)
#define C_CARD_FAILURE (u_short) (ACK_INTR|0x2)
#define C_TX_COMPLETE (u_short) (ACK_INTR|0x4)
#define C_TX_AVAIL (u_short) (ACK_INTR|0x8)
#define C_RX_COMPLETE (u_short) (ACK_INTR|0x10)
#define C_RX_EARLY (u_short) (ACK_INTR|0x20)
#define C_INT_RQD (u_short) (ACK_INTR|0x40)
#define C_UPD_STATS (u_short) (ACK_INTR|0x80)
/*
* Status register. All windows.
*
* 15-13: Window number(0-7).
* 12: Command_in_progress.
* 11: reserved.
* 10: reserved.
* 9: reserved.
* 8: reserved.
* 7: Update Statistics.
* 6: Interrupt Requested.
* 5: RX Early.
* 4: RX Complete.
* 3: TX Available.
* 2: TX Complete.
* 1: Adapter Failure.
* 0: Interrupt Latch.
*/
#define S_INTR_LATCH (u_short) (0x1)
#define S_CARD_FAILURE (u_short) (0x2)
#define S_TX_COMPLETE (u_short) (0x4)
#define S_TX_AVAIL (u_short) (0x8)
#define S_RX_COMPLETE (u_short) (0x10)
#define S_RX_EARLY (u_short) (0x20)
#define S_INT_RQD (u_short) (0x40)
#define S_UPD_STATS (u_short) (0x80)
#define S_5_INTS (S_CARD_FAILURE|S_TX_COMPLETE|\
S_TX_AVAIL|S_RX_COMPLETE|S_RX_EARLY)
#define S_COMMAND_IN_PROGRESS (u_short) (0x1000)
/*
* FIFO Registers.
* RX Status. Window 1/Port 08
*
* 15: Incomplete or FIFO empty.
* 14: 1: Error in RX Packet 0: Incomplete or no error.
* 13-11: Type of error.
* 1000 = Overrun.
* 1011 = Run Packet Error.
* 1100 = Alignment Error.
* 1101 = CRC Error.
* 1001 = Oversize Packet Error (>1514 bytes)
* 0010 = Dribble Bits.
* (all other error codes, no errors.)
*
* 10-0: RX Bytes (0-1514)
*/
#define ERR_RX_INCOMPLETE (u_short) (0x1<<15)
#define ERR_RX (u_short) (0x1<<14)
#define ERR_RX_OVERRUN (u_short) (0x8<<11)
#define ERR_RX_RUN_PKT (u_short) (0xb<<11)
#define ERR_RX_ALIGN (u_short) (0xc<<11)
#define ERR_RX_CRC (u_short) (0xd<<11)
#define ERR_RX_OVERSIZE (u_short) (0x9<<11)
#define ERR_RX_DRIBBLE (u_short) (0x2<<11)
/*
* FIFO Registers.
* TX Status. Window 1/Port 0B
*
* Reports the transmit status of a completed transmission. Writing this
* register pops the transmit completion stack.
*
* Window 1/Port 0x0b.
*
* 7: Complete
* 6: Interrupt on successful transmission requested.
* 5: Jabber Error (TP Only, TX Reset required. )
* 4: Underrun (TX Reset required. )
* 3: Maximum Collisions.
* 2: TX Status Overflow.
* 1-0: Undefined.
*
*/
#define TXS_COMPLETE 0x80
#define TXS_SUCCES_INTR_REQ 0x40
#define TXS_JABBER 0x20
#define TXS_UNDERRUN 0x10
#define TXS_MAX_COLLISION 0x8
#define TXS_STATUS_OVERFLOW 0x4
/*
* Configuration control register.
* Window 0/Port 04
*/
/* Read */
#define IS_AUI (1<<13)
#define IS_BNC (1<<12)
#define IS_UTP (1<<9)
/* Write */
#define ENABLE_DRQ_IRQ 0x0001
#define W0_P4_CMD_RESET_ADAPTER 0x4
#define W0_P4_CMD_ENABLE_ADAPTER 0x1
/*
* Media type and status.
* Window 4/Port 0A
*/
#define ENABLE_UTP 0xc0
#define DISABLE_UTP 0x0
/*
* Misc defines for various things.
*/
#define ACTIVATE_ADAPTER_TO_CONFIG 0xff /* to the id_port */
#define MFG_ID 0x6d50 /* in EEPROM and W0 ADDR_CONFIG */
#define PROD_ID 0x9150
#define AUI 0x1
#define BNC 0x2
#define UTP 0x4
#define ETHER_ADDR_LEN 6
#define ETHER_MAX 1536
#define RX_BYTES_MASK (u_short) (0x07ff)
/* EISA support */
#define EP_EISA_START 0x1000
#define EP_EISA_W0 0x0c80
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