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/* $Id: sunhme.h,v 1.33 2001/08/03 06:23:04 davem Exp $
 * sunhme.h: Definitions for Sparc HME/BigMac 10/100baseT ethernet driver.
 *           Also known as the "Happy Meal".
 *
 * Copyright (C) 1996, 1999 David S. Miller (davem@redhat.com)
 */

#ifndef _SUNHME_H
#define _SUNHME_H

#include <linux/pci.h>

/* Happy Meal global registers. */
#define GREG_SWRESET	0x000UL	/* Software Reset  */
#define GREG_CFG	0x004UL	/* Config Register */
#define GREG_STAT	0x108UL	/* Status          */
#define GREG_IMASK	0x10cUL	/* Interrupt Mask  */
#define GREG_REG_SIZE	0x110UL

/* Global reset register. */
#define GREG_RESET_ETX         0x01
#define GREG_RESET_ERX         0x02
#define GREG_RESET_ALL         0x03

/* Global config register. */
#define GREG_CFG_BURSTMSK      0x03
#define GREG_CFG_BURST16       0x00
#define GREG_CFG_BURST32       0x01
#define GREG_CFG_BURST64       0x02
#define GREG_CFG_64BIT         0x04
#define GREG_CFG_PARITY        0x08
#define GREG_CFG_RESV          0x10

/* Global status register. */
#define GREG_STAT_GOTFRAME     0x00000001 /* Received a frame                         */
#define GREG_STAT_RCNTEXP      0x00000002 /* Receive frame counter expired            */
#define GREG_STAT_ACNTEXP      0x00000004 /* Align-error counter expired              */
#define GREG_STAT_CCNTEXP      0x00000008 /* CRC-error counter expired                */
#define GREG_STAT_LCNTEXP      0x00000010 /* Length-error counter expired             */
#define GREG_STAT_RFIFOVF      0x00000020 /* Receive FIFO overflow                    */
#define GREG_STAT_CVCNTEXP     0x00000040 /* Code-violation counter expired           */
#define GREG_STAT_STSTERR      0x00000080 /* Test error in XIF for SQE                */
#define GREG_STAT_SENTFRAME    0x00000100 /* Transmitted a frame                      */
#define GREG_STAT_TFIFO_UND    0x00000200 /* Transmit FIFO underrun                   */
#define GREG_STAT_MAXPKTERR    0x00000400 /* Max-packet size error                    */
#define GREG_STAT_NCNTEXP      0x00000800 /* Normal-collision counter expired         */
#define GREG_STAT_ECNTEXP      0x00001000 /* Excess-collision counter expired         */
#define GREG_STAT_LCCNTEXP     0x00002000 /* Late-collision counter expired           */
#define GREG_STAT_FCNTEXP      0x00004000 /* First-collision counter expired          */
#define GREG_STAT_DTIMEXP      0x00008000 /* Defer-timer expired                      */
#define GREG_STAT_RXTOHOST     0x00010000 /* Moved from receive-FIFO to host memory   */
#define GREG_STAT_NORXD        0x00020000 /* No more receive descriptors              */
#define GREG_STAT_RXERR        0x00040000 /* Error during receive dma                 */
#define GREG_STAT_RXLATERR     0x00080000 /* Late error during receive dma            */
#define GREG_STAT_RXPERR       0x00100000 /* Parity error during receive dma          */
#define GREG_STAT_RXTERR       0x00200000 /* Tag error during receive dma             */
#define GREG_STAT_EOPERR       0x00400000 /* Transmit descriptor did not have EOP set */
#define GREG_STAT_MIFIRQ       0x00800000 /* MIF is signaling an interrupt condition  */
#define GREG_STAT_HOSTTOTX     0x01000000 /* Moved from host memory to transmit-FIFO  */
#define GREG_STAT_TXALL        0x02000000 /* Transmitted all packets in the tx-fifo   */
#define GREG_STAT_TXEACK       0x04000000 /* Error during transmit dma                */
#define GREG_STAT_TXLERR       0x08000000 /* Late error during transmit dma           */
#define GREG_STAT_TXPERR       0x10000000 /* Parity error during transmit dma         */
#define GREG_STAT_TXTERR       0x20000000 /* Tag error during transmit dma            */
#define GREG_STAT_SLVERR       0x40000000 /* PIO access got an error                  */
#define GREG_STAT_SLVPERR      0x80000000 /* PIO access got a parity error            */

/* All interesting error conditions. */
#define GREG_STAT_ERRORS       0xfc7efefc

/* Global interrupt mask register. */
#define GREG_IMASK_GOTFRAME    0x00000001 /* Received a frame                         */
#define GREG_IMASK_RCNTEXP     0x00000002 /* Receive frame counter expired            */
#define GREG_IMASK_ACNTEXP     0x00000004 /* Align-error counter expired              */
#define GREG_IMASK_CCNTEXP     0x00000008 /* CRC-error counter expired                */
#define GREG_IMASK_LCNTEXP     0x00000010 /* Length-error counter expired             */
#define GREG_IMASK_RFIFOVF     0x00000020 /* Receive FIFO overflow                    */
#define GREG_IMASK_CVCNTEXP    0x00000040 /* Code-violation counter expired           */
#define GREG_IMASK_STSTERR     0x00000080 /* Test error in XIF for SQE                */
#define GREG_IMASK_SENTFRAME   0x00000100 /* Transmitted a frame                      */
#define GREG_IMASK_TFIFO_UND   0x00000200 /* Transmit FIFO underrun                   */
#define GREG_IMASK_MAXPKTERR   0x00000400 /* Max-packet size error                    */
#define GREG_IMASK_NCNTEXP     0x00000800 /* Normal-collision counter expired         */
#define GREG_IMASK_ECNTEXP     0x00001000 /* Excess-collision counter expired         */
#define GREG_IMASK_LCCNTEXP    0x00002000 /* Late-collision counter expired           */
#define GREG_IMASK_FCNTEXP     0x00004000 /* First-collision counter expired          */
#define GREG_IMASK_DTIMEXP     0x00008000 /* Defer-timer expired                      */
#define GREG_IMASK_RXTOHOST    0x00010000 /* Moved from receive-FIFO to host memory   */
#define GREG_IMASK_NORXD       0x00020000 /* No more receive descriptors              */
#define GREG_IMASK_RXERR       0x00040000 /* Error during receive dma                 */
#define GREG_IMASK_RXLATERR    0x00080000 /* Late error during receive dma            */
#define GREG_IMASK_RXPERR      0x00100000 /* Parity error during receive dma          */
#define GREG_IMASK_RXTERR      0x00200000 /* Tag error during receive dma             */
#define GREG_IMASK_EOPERR      0x00400000 /* Transmit descriptor did not have EOP set */
#define GREG_IMASK_MIFIRQ      0x00800000 /* MIF is signaling an interrupt condition  */
#define GREG_IMASK_HOSTTOTX    0x01000000 /* Moved from host memory to transmit-FIFO  */
#define GREG_IMASK_TXALL       0x02000000 /* Transmitted all packets in the tx-fifo   */
#define GREG_IMASK_TXEACK      0x04000000 /* Error during transmit dma                */
#define GREG_IMASK_TXLERR      0x08000000 /* Late error during transmit dma           */
#define GREG_IMASK_TXPERR      0x10000000 /* Parity error during transmit dma         */
#define GREG_IMASK_TXTERR      0x20000000 /* Tag error during transmit dma            */
#define GREG_IMASK_SLVERR      0x40000000 /* PIO access got an error                  */
#define GREG_IMASK_SLVPERR     0x80000000 /* PIO access got a parity error            */

/* Happy Meal external transmitter registers. */
#define ETX_PENDING	0x00UL	/* Transmit pending/wakeup register */
#define ETX_CFG		0x04UL	/* Transmit config register         */
#define ETX_RING	0x08UL	/* Transmit ring pointer            */
#define ETX_BBASE	0x0cUL	/* Transmit buffer base             */
#define ETX_BDISP	0x10UL	/* Transmit buffer displacement     */
#define ETX_FIFOWPTR	0x14UL	/* FIFO write ptr                   */
#define ETX_FIFOSWPTR	0x18UL	/* FIFO write ptr (shadow register) */
#define ETX_FIFORPTR	0x1cUL	/* FIFO read ptr                    */
#define ETX_FIFOSRPTR	0x20UL	/* FIFO read ptr (shadow register)  */
#define ETX_FIFOPCNT	0x24UL	/* FIFO packet counter              */
#define ETX_SMACHINE	0x28UL	/* Transmitter state machine        */
#define ETX_RSIZE	0x2cUL	/* Ring descriptor size             */
#define ETX_BPTR	0x30UL	/* Transmit data buffer ptr         */
#define ETX_REG_SIZE	0x34UL

/* ETX transmit pending register. */
#define ETX_TP_DMAWAKEUP         0x00000001 /* Restart transmit dma             */

/* ETX config register. */
#define ETX_CFG_DMAENABLE        0x00000001 /* Enable transmit dma              */
#define ETX_CFG_FIFOTHRESH       0x000003fe /* Transmit FIFO threshold          */
#define ETX_CFG_IRQDAFTER        0x00000400 /* Interrupt after TX-FIFO drained  */
#define ETX_CFG_IRQDBEFORE       0x00000000 /* Interrupt before TX-FIFO drained */

#define ETX_RSIZE_SHIFT          4

/* Happy Meal external receiver registers. */
#define ERX_CFG		0x00UL	/* Receiver config register         */
#define ERX_RING	0x04UL	/* Receiver ring ptr                */
#define ERX_BPTR	0x08UL	/* Receiver buffer ptr              */
#define ERX_FIFOWPTR	0x0cUL	/* FIFO write ptr                   */
#define ERX_FIFOSWPTR	0x10UL	/* FIFO write ptr (shadow register) */
#define ERX_FIFORPTR	0x14UL	/* FIFO read ptr                    */
#define ERX_FIFOSRPTR	0x18UL	/* FIFO read ptr (shadow register)  */
#define ERX_SMACHINE	0x1cUL	/* Receiver state machine           */
#define ERX_REG_SIZE	0x20UL

/* ERX config register. */
#define ERX_CFG_DMAENABLE    0x00000001 /* Enable receive DMA        */
#define ERX_CFG_RESV1        0x00000006 /* Unused...                 */
#define ERX_CFG_BYTEOFFSET   0x00000038 /* Receive first byte offset */
#define ERX_CFG_RESV2        0x000001c0 /* Unused...                 */
#define ERX_CFG_SIZE32       0x00000000 /* Receive ring size == 32   */
#define ERX_CFG_SIZE64       0x00000200 /* Receive ring size == 64   */
#define ERX_CFG_SIZE128      0x00000400 /* Receive ring size == 128  */
#define ERX_CFG_SIZE256      0x00000600 /* Receive ring size == 256  */
#define ERX_CFG_RESV3        0x0000f800 /* Unused...                 */
#define ERX_CFG_CSUMSTART    0x007f0000 /* Offset of checksum start,
					 * in halfwords. */

/* I'd like a Big Mac, small fries, small coke, and SparcLinux please. */
#define BMAC_XIFCFG	0x0000UL	/* XIF config register                */
	/* 0x4-->0x204, reserved */
#define BMAC_TXSWRESET	0x208UL	/* Transmitter software reset         */
#define BMAC_TXCFG	0x20cUL	/* Transmitter config register        */
#define BMAC_IGAP1	0x210UL	/* Inter-packet gap 1                 */
#define BMAC_IGAP2	0x214UL	/* Inter-packet gap 2                 */
#define BMAC_ALIMIT	0x218UL	/* Transmit attempt limit             */
#define BMAC_STIME	0x21cUL	/* Transmit slot time                 */
#define BMAC_PLEN	0x220UL	/* Size of transmit preamble          */
#define BMAC_PPAT	0x224UL	/* Pattern for transmit preamble      */
#define BMAC_TXSDELIM	0x228UL	/* Transmit delimiter                 */
#define BMAC_JSIZE	0x22cUL	/* Jam size                           */
#define BMAC_TXMAX	0x230UL	/* Transmit max pkt size              */
#define BMAC_TXMIN	0x234UL	/* Transmit min pkt size              */
#define BMAC_PATTEMPT	0x238UL	/* Count of transmit peak attempts    */
#define BMAC_DTCTR	0x23cUL	/* Transmit defer timer               */
#define BMAC_NCCTR	0x240UL	/* Transmit normal-collision counter  */
#define BMAC_FCCTR	0x244UL	/* Transmit first-collision counter   */
#define BMAC_EXCTR	0x248UL	/* Transmit excess-collision counter  */
#define BMAC_LTCTR	0x24cUL	/* Transmit late-collision counter    */
#define BMAC_RSEED	0x250UL	/* Transmit random number seed        */
#define BMAC_TXSMACHINE	0x254UL	/* Transmit state machine             */
	/* 0x258-->0x304, reserved */
#define BMAC_RXSWRESET	0x308UL	/* Receiver software reset            */
#define BMAC_RXCFG	0x30cUL	/* Receiver config register           */
#define BMAC_RXMAX	0x310UL	/* Receive max pkt size               */
#define BMAC_RXMIN	0x314UL	/* Receive min pkt size               */
#define BMAC_MACADDR2	0x318UL	/* Ether address register 2           */
#define BMAC_MACADDR1	0x31cUL	/* Ether address register 1           */
#define BMAC_MACADDR0	0x320UL	/* Ether address register 0           */
#define BMAC_FRCTR	0x324UL	/* Receive frame receive counter      */
#define BMAC_GLECTR	0x328UL	/* Receive giant-length error counter */
#define BMAC_UNALECTR	0x32cUL	/* Receive unaligned error counter    */
#define BMAC_RCRCECTR	0x330UL	/* Receive CRC error counter          */
#define BMAC_RXSMACHINE	0x334UL	/* Receiver state machine             */
#define BMAC_RXCVALID	0x338UL	/* Receiver code violation            */
	/* 0x33c, reserved */
#define BMAC_HTABLE3	0x340UL	/* Hash table 3                       */
#define BMAC_HTABLE2	0x344UL	/* Hash table 2                       */
#define BMAC_HTABLE1	0x348UL	/* Hash table 1                       */
#define BMAC_HTABLE0	0x34cUL	/* Hash table 0                       */
#define BMAC_AFILTER2	0x350UL	/* Address filter 2                   */
#define BMAC_AFILTER1	0x354UL	/* Address filter 1                   */
#define BMAC_AFILTER0	0x358UL	/* Address filter 0                   */
#define BMAC_AFMASK	0x35cUL	/* Address filter mask                */
#define BMAC_REG_SIZE	0x360UL

/* BigMac XIF config register. */
#define BIGMAC_XCFG_ODENABLE  0x00000001 /* Output driver enable         */
#define BIGMAC_XCFG_XLBACK    0x00000002 /* Loopback-mode XIF enable     */