[PATCH] fix semaphore handling in __unregister_chrdev_region

[linux/fpc-iii.git] / drivers / net / via-velocity.h

/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This software may be redistributed and/or modified under
 * the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that 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.
 *
 * File: via-velocity.h
 *
 * Purpose: Header file to define driver's private structures.
 *
 * Author: Chuang Liang-Shing, AJ Jiang
 *
 * Date: Jan 24, 2003
 */


#ifndef VELOCITY_H
#define VELOCITY_H

#define VELOCITY_TX_CSUM_SUPPORT

#define VELOCITY_NAME          "via-velocity"
#define VELOCITY_FULL_DRV_NAM  "VIA Networking Velocity Family Gigabit Ethernet Adapter Driver"
#define VELOCITY_VERSION       "1.13"

#define PKT_BUF_SZ          1540

#define MAX_UNITS           8
#define OPTION_DEFAULT      { [0 ... MAX_UNITS-1] = -1}

#define REV_ID_VT6110       (0)

#define BYTE_REG_BITS_ON(x,p)       do { writeb(readb((p))|(x),(p));} while (0)
#define WORD_REG_BITS_ON(x,p)       do { writew(readw((p))|(x),(p));} while (0)
#define DWORD_REG_BITS_ON(x,p)      do { writel(readl((p))|(x),(p));} while (0)

#define BYTE_REG_BITS_IS_ON(x,p)    (readb((p)) & (x))
#define WORD_REG_BITS_IS_ON(x,p)    (readw((p)) & (x))
#define DWORD_REG_BITS_IS_ON(x,p)   (readl((p)) & (x))

#define BYTE_REG_BITS_OFF(x,p)      do { writeb(readb((p)) & (~(x)),(p));} while (0)
#define WORD_REG_BITS_OFF(x,p)      do { writew(readw((p)) & (~(x)),(p));} while (0)
#define DWORD_REG_BITS_OFF(x,p)     do { writel(readl((p)) & (~(x)),(p));} while (0)

#define BYTE_REG_BITS_SET(x,m,p)    do { writeb( (readb((p)) & (~(m))) |(x),(p));} while (0)
#define WORD_REG_BITS_SET(x,m,p)    do { writew( (readw((p)) & (~(m))) |(x),(p));} while (0)
#define DWORD_REG_BITS_SET(x,m,p)   do { writel( (readl((p)) & (~(m)))|(x),(p));}  while (0)

#define VAR_USED(p)     do {(p)=(p);} while (0)

/*
 * Purpose: Structures for MAX RX/TX descriptors.
 */


#define B_OWNED_BY_CHIP     1
#define B_OWNED_BY_HOST     0

/*
 * Bits in the RSR0 register
 */

#define RSR_DETAG          0x0080
#define RSR_SNTAG          0x0040
#define RSR_RXER           0x0020
#define RSR_RL             0x0010
#define RSR_CE             0x0008
#define RSR_FAE            0x0004
#define RSR_CRC            0x0002
#define RSR_VIDM           0x0001

/*
 * Bits in the RSR1 register
 */

#define RSR_RXOK           0x8000       // rx OK
#define RSR_PFT            0x4000       // Perfect filtering address match
#define RSR_MAR            0x2000       // MAC accept multicast address packet
#define RSR_BAR            0x1000       // MAC accept broadcast address packet
#define RSR_PHY            0x0800       // MAC accept physical address packet
#define RSR_VTAG           0x0400       // 802.1p/1q tagging packet indicator
#define RSR_STP            0x0200       // start of packet
#define RSR_EDP            0x0100       // end of packet

/*
 * Bits in the RSR1 register
 */

#define RSR1_RXOK           0x80        // rx OK
#define RSR1_PFT            0x40        // Perfect filtering address match
#define RSR1_MAR            0x20        // MAC accept multicast address packet
#define RSR1_BAR            0x10        // MAC accept broadcast address packet
#define RSR1_PHY            0x08        // MAC accept physical address packet
#define RSR1_VTAG           0x04        // 802.1p/1q tagging packet indicator
#define RSR1_STP            0x02        // start of packet
#define RSR1_EDP            0x01        // end of packet

/*
 * Bits in the CSM register
 */

#define CSM_IPOK            0x40        //IP Checkusm validatiaon ok
#define CSM_TUPOK           0x20        //TCP/UDP Checkusm validatiaon ok
#define CSM_FRAG            0x10        //Fragment IP datagram
#define CSM_IPKT            0x04        //Received an IP packet
#define CSM_TCPKT           0x02        //Received a TCP packet
#define CSM_UDPKT           0x01        //Received a UDP packet

/*
 * Bits in the TSR0 register
 */

#define TSR0_ABT            0x0080      // Tx abort because of excessive collision
#define TSR0_OWT            0x0040      // Jumbo frame Tx abort
#define TSR0_OWC            0x0020      // Out of window collision
#define TSR0_COLS           0x0010      // experience collision in this transmit event
#define TSR0_NCR3           0x0008      // collision retry counter[3]
#define TSR0_NCR2           0x0004      // collision retry counter[2]
#define TSR0_NCR1           0x0002      // collision retry counter[1]
#define TSR0_NCR0           0x0001      // collision retry counter[0]
#define TSR0_TERR           0x8000      //
#define TSR0_FDX            0x4000      // current transaction is serviced by full duplex mode
#define TSR0_GMII           0x2000      // current transaction is serviced by GMII mode
#define TSR0_LNKFL          0x1000      // packet serviced during link down
#define TSR0_SHDN           0x0400      // shutdown case
#define TSR0_CRS            0x0200      // carrier sense lost
#define TSR0_CDH            0x0100      // AQE test fail (CD heartbeat)

/*
 * Bits in the TSR1 register
 */

#define TSR1_TERR           0x80        //
#define TSR1_FDX            0x40        // current transaction is serviced by full duplex mode
#define TSR1_GMII           0x20        // current transaction is serviced by GMII mode
#define TSR1_LNKFL          0x10        // packet serviced during link down
#define TSR1_SHDN           0x04        // shutdown case
#define TSR1_CRS            0x02        // carrier sense lost
#define TSR1_CDH            0x01        // AQE test fail (CD heartbeat)

//
// Bits in the TCR0 register
//
#define TCR0_TIC            0x80        // assert interrupt immediately while descriptor has been send complete
#define TCR0_PIC            0x40        // priority interrupt request, INA# is issued over adaptive interrupt scheme
#define TCR0_VETAG          0x20        // enable VLAN tag
#define TCR0_IPCK           0x10        // request IP  checksum calculation.
#define TCR0_UDPCK          0x08        // request UDP checksum calculation.
#define TCR0_TCPCK          0x04        // request TCP checksum calculation.
#define TCR0_JMBO           0x02        // indicate a jumbo packet in GMAC side
#define TCR0_CRC            0x01        // disable CRC generation

#define TCPLS_NORMAL        3
#define TCPLS_START         2
#define TCPLS_END           1
#define TCPLS_MED           0


// max transmit or receive buffer size
#define CB_RX_BUF_SIZE     2048UL       // max buffer size
                                        // NOTE: must be multiple of 4

#define CB_MAX_RD_NUM       512 // MAX # of RD
#define CB_MAX_TD_NUM       256 // MAX # of TD

#define CB_INIT_RD_NUM_3119 128 // init # of RD, for setup VT3119
#define CB_INIT_TD_NUM_3119 64  // init # of TD, for setup VT3119

#define CB_INIT_RD_NUM      128 // init # of RD, for setup default
#define CB_INIT_TD_NUM      64  // init # of TD, for setup default

// for 3119
#define CB_TD_RING_NUM      4   // # of TD rings.
#define CB_MAX_SEG_PER_PKT  7   // max data seg per packet (Tx)


/*
 *      If collisions excess 15 times , tx will abort, and
 *      if tx fifo underflow, tx will fail
 *      we should try to resend it
 */

#define CB_MAX_TX_ABORT_RETRY   3

/*
 *      Receive descriptor
 */

struct rdesc0 {
        u16 RSR;                /* Receive status */
        u16 len:14;             /* Received packet length */
        u16 reserved:1;
        u16 owner:1;            /* Who owns this buffer ? */
};

struct rdesc1 {
        u16 PQTAG;
        u8 CSM;
        u8 IPKT;
};

struct rx_desc {
        struct rdesc0 rdesc0;
        struct rdesc1 rdesc1;
        u32 pa_low;             /* Low 32 bit PCI address */
        u16 pa_high;            /* Next 16 bit PCI address (48 total) */
        u16 len:15;             /* Frame size */
        u16 inten:1;            /* Enable interrupt */
} __attribute__ ((__packed__));

/*
 *      Transmit descriptor
 */

struct tdesc0 {
        u16 TSR;                /* Transmit status register */
        u16 pktsize:14;         /* Size of frame */
        u16 reserved:1;
        u16 owner:1;            /* Who owns the buffer */
};

struct pqinf {                  /* Priority queue info */
        u16 VID:12;
        u16 CFI:1;
        u16 priority:3;
} __attribute__ ((__packed__));

struct tdesc1 {
        struct pqinf pqinf;
        u8 TCR;
        u8 TCPLS:2;
        u8 reserved:2;
        u8 CMDZ:4;
} __attribute__ ((__packed__));

struct td_buf {
        u32 pa_low;
        u16 pa_high;
        u16 bufsize:14; 
        u16 reserved:1;
        u16 queue:1;
} __attribute__ ((__packed__));

struct tx_desc {
        struct tdesc0 tdesc0;
        struct tdesc1 tdesc1;
        struct td_buf td_buf[7];
};

struct velocity_rd_info {
        struct sk_buff *skb;
        dma_addr_t skb_dma;
};

/**
 *      alloc_rd_info           -       allocate an rd info block
 *
 *      Alocate and initialize a receive info structure used for keeping
 *      track of kernel side information related to each receive
 *      descriptor we are using
 */

static inline struct velocity_rd_info *alloc_rd_info(void)
{
        struct velocity_rd_info *ptr;
        if ((ptr = kmalloc(sizeof(struct velocity_rd_info), GFP_ATOMIC)) == NULL)
                return NULL;
        else {
                memset(ptr, 0, sizeof(struct velocity_rd_info));
                return ptr;
        }
}

/*
 *      Used to track transmit side buffers.
 */

struct velocity_td_info {
        struct sk_buff *skb;
        u8 *buf;
        int nskb_dma;
        dma_addr_t skb_dma[7];
        dma_addr_t buf_dma;
};

enum  velocity_owner {
        OWNED_BY_HOST = 0,
        OWNED_BY_NIC = 1
};


/*
 *      MAC registers and macros.
 */


#define MCAM_SIZE           64
#define VCAM_SIZE           64
#define TX_QUEUE_NO         4

#define MAX_HW_MIB_COUNTER  32
#define VELOCITY_MIN_MTU    (1514-14)
#define VELOCITY_MAX_MTU    (9000)

/*
 *      Registers in the MAC
 */

#define MAC_REG_PAR         0x00        // physical address
#define MAC_REG_RCR         0x06
#define MAC_REG_TCR         0x07
#define MAC_REG_CR0_SET     0x08
#define MAC_REG_CR1_SET     0x09
#define MAC_REG_CR2_SET     0x0A
#define MAC_REG_CR3_SET     0x0B
#define MAC_REG_CR0_CLR     0x0C
#define MAC_REG_CR1_CLR     0x0D
#define MAC_REG_CR2_CLR     0x0E
#define MAC_REG_CR3_CLR     0x0F
#define MAC_REG_MAR         0x10
#define MAC_REG_CAM         0x10
#define MAC_REG_DEC_BASE_HI 0x18
#define MAC_REG_DBF_BASE_HI 0x1C
#define MAC_REG_ISR_CTL     0x20
#define MAC_REG_ISR_HOTMR   0x20
#define MAC_REG_ISR_TSUPTHR 0x20
#define MAC_REG_ISR_RSUPTHR 0x20
#define MAC_REG_ISR_CTL1    0x21
#define MAC_REG_TXE_SR      0x22
#define MAC_REG_RXE_SR      0x23
#define MAC_REG_ISR         0x24
#define MAC_REG_ISR0        0x24
#define MAC_REG_ISR1        0x25
#define MAC_REG_ISR2        0x26
#define MAC_REG_ISR3        0x27
#define MAC_REG_IMR         0x28
#define MAC_REG_IMR0        0x28
#define MAC_REG_IMR1        0x29
#define MAC_REG_IMR2        0x2A
#define MAC_REG_IMR3        0x2B
#define MAC_REG_TDCSR_SET   0x30
#define MAC_REG_RDCSR_SET   0x32
#define MAC_REG_TDCSR_CLR   0x34
#define MAC_REG_RDCSR_CLR   0x36
#define MAC_REG_RDBASE_LO   0x38
#define MAC_REG_RDINDX      0x3C
#define MAC_REG_TDBASE_LO   0x40
#define MAC_REG_RDCSIZE     0x50
#define MAC_REG_TDCSIZE     0x52
#define MAC_REG_TDINDX      0x54
#define MAC_REG_TDIDX0      0x54
#define MAC_REG_TDIDX1      0x56
#define MAC_REG_TDIDX2      0x58
#define MAC_REG_TDIDX3      0x5A
#define MAC_REG_PAUSE_TIMER 0x5C
#define MAC_REG_RBRDU       0x5E
#define MAC_REG_FIFO_TEST0  0x60
#define MAC_REG_FIFO_TEST1  0x64
#define MAC_REG_CAMADDR     0x68
#define MAC_REG_CAMCR       0x69
#define MAC_REG_GFTEST      0x6A
#define MAC_REG_FTSTCMD     0x6B
#define MAC_REG_MIICFG      0x6C
#define MAC_REG_MIISR       0x6D
#define MAC_REG_PHYSR0      0x6E
#define MAC_REG_PHYSR1      0x6F
#define MAC_REG_MIICR       0x70
#define MAC_REG_MIIADR      0x71
#define MAC_REG_MIIDATA     0x72
#define MAC_REG_SOFT_TIMER0 0x74
#define MAC_REG_SOFT_TIMER1 0x76
#define MAC_REG_CFGA        0x78
#define MAC_REG_CFGB        0x79
#define MAC_REG_CFGC        0x7A
#define MAC_REG_CFGD        0x7B
#define MAC_REG_DCFG0       0x7C
#define MAC_REG_DCFG1       0x7D
#define MAC_REG_MCFG0       0x7E
#define MAC_REG_MCFG1       0x7F

#define MAC_REG_TBIST       0x80
#define MAC_REG_RBIST       0x81
#define MAC_REG_PMCC        0x82
#define MAC_REG_STICKHW     0x83
#define MAC_REG_MIBCR       0x84
#define MAC_REG_EERSV       0x85
#define MAC_REG_REVID       0x86
#define MAC_REG_MIBREAD     0x88
#define MAC_REG_BPMA        0x8C
#define MAC_REG_EEWR_DATA   0x8C
#define MAC_REG_BPMD_WR     0x8F
#define MAC_REG_BPCMD       0x90
#define MAC_REG_BPMD_RD     0x91
#define MAC_REG_EECHKSUM    0x92
#define MAC_REG_EECSR       0x93
#define MAC_REG_EERD_DATA   0x94
#define MAC_REG_EADDR       0x96
#define MAC_REG_EMBCMD      0x97
#define MAC_REG_JMPSR0      0x98
#define MAC_REG_JMPSR1      0x99
#define MAC_REG_JMPSR2      0x9A
#define MAC_REG_JMPSR3      0x9B
#define MAC_REG_CHIPGSR     0x9C
#define MAC_REG_TESTCFG     0x9D
#define MAC_REG_DEBUG       0x9E
#define MAC_REG_CHIPGCR     0x9F
#define MAC_REG_WOLCR0_SET  0xA0
#define MAC_REG_WOLCR1_SET  0xA1
#define MAC_REG_PWCFG_SET   0xA2
#define MAC_REG_WOLCFG_SET  0xA3
#define MAC_REG_WOLCR0_CLR  0xA4
#define MAC_REG_WOLCR1_CLR  0xA5
#define MAC_REG_PWCFG_CLR   0xA6
#define MAC_REG_WOLCFG_CLR  0xA7
#define MAC_REG_WOLSR0_SET  0xA8
#define MAC_REG_WOLSR1_SET  0xA9
#define MAC_REG_WOLSR0_CLR  0xAC
#define MAC_REG_WOLSR1_CLR  0xAD
#define MAC_REG_PATRN_CRC0  0xB0
#define MAC_REG_PATRN_CRC1  0xB2
#define MAC_REG_PATRN_CRC2  0xB4
#define MAC_REG_PATRN_CRC3  0xB6
#define MAC_REG_PATRN_CRC4  0xB8
#define MAC_REG_PATRN_CRC5  0xBA
#define MAC_REG_PATRN_CRC6  0xBC
#define MAC_REG_PATRN_CRC7  0xBE
#define MAC_REG_BYTEMSK0_0  0xC0
#define MAC_REG_BYTEMSK0_1  0xC4
#define MAC_REG_BYTEMSK0_2  0xC8
#define MAC_REG_BYTEMSK0_3  0xCC
#define MAC_REG_BYTEMSK1_0  0xD0
#define MAC_REG_BYTEMSK1_1  0xD4
#define MAC_REG_BYTEMSK1_2  0xD8
#define MAC_REG_BYTEMSK1_3  0xDC
#define MAC_REG_BYTEMSK2_0  0xE0
#define MAC_REG_BYTEMSK2_1  0xE4
#define MAC_REG_BYTEMSK2_2  0xE8
#define MAC_REG_BYTEMSK2_3  0xEC
#define MAC_REG_BYTEMSK3_0  0xF0
#define MAC_REG_BYTEMSK3_1  0xF4
#define MAC_REG_BYTEMSK3_2  0xF8
#define MAC_REG_BYTEMSK3_3  0xFC

/*
 *      Bits in the RCR register
 */

#define RCR_AS              0x80
#define RCR_AP              0x40
#define RCR_AL              0x20
#define RCR_PROM            0x10
#define RCR_AB              0x08
#define RCR_AM              0x04
#define RCR_AR              0x02
#define RCR_SEP             0x01

/*
 *      Bits in the TCR register
 */

#define TCR_TB2BDIS         0x80
#define TCR_COLTMC1         0x08
#define TCR_COLTMC0         0x04
#define TCR_LB1             0x02        /* loopback[1] */
#define TCR_LB0             0x01        /* loopback[0] */

/*
 *      Bits in the CR0 register
 */

#define CR0_TXON            0x00000008UL
#define CR0_RXON            0x00000004UL
#define CR0_STOP            0x00000002UL        /* stop MAC, default = 1 */
#define CR0_STRT            0x00000001UL        /* start MAC */
#define CR0_SFRST           0x00008000UL        /* software reset */
#define CR0_TM1EN           0x00004000UL
#define CR0_TM0EN           0x00002000UL
#define CR0_DPOLL           0x00000800UL        /* disable rx/tx auto polling */
#define CR0_DISAU           0x00000100UL
#define CR0_XONEN           0x00800000UL
#define CR0_FDXTFCEN        0x00400000UL        /* full-duplex TX flow control enable */
#define CR0_FDXRFCEN        0x00200000UL        /* full-duplex RX flow control enable */
#define CR0_HDXFCEN         0x00100000UL        /* half-duplex flow control enable */
#define CR0_XHITH1          0x00080000UL        /* TX XON high threshold 1 */
#define CR0_XHITH0          0x00040000UL        /* TX XON high threshold 0 */
#define CR0_XLTH1           0x00020000UL        /* TX pause frame low threshold 1 */
#define CR0_XLTH0           0x00010000UL        /* TX pause frame low threshold 0 */
#define CR0_GSPRST          0x80000000UL
#define CR0_FORSRST         0x40000000UL
#define CR0_FPHYRST         0x20000000UL
#define CR0_DIAG            0x10000000UL
#define CR0_INTPCTL         0x04000000UL
#define CR0_GINTMSK1        0x02000000UL
#define CR0_GINTMSK0        0x01000000UL

/*
 *      Bits in the CR1 register
 */

#define CR1_SFRST           0x80        /* software reset */
#define CR1_TM1EN           0x40
#define CR1_TM0EN           0x20
#define CR1_DPOLL           0x08        /* disable rx/tx auto polling */
#define CR1_DISAU           0x01

/*
 *      Bits in the CR2 register
 */

#define CR2_XONEN           0x80
#define CR2_FDXTFCEN        0x40        /* full-duplex TX flow control enable */
#define CR2_FDXRFCEN        0x20        /* full-duplex RX flow control enable */
#define CR2_HDXFCEN         0x10        /* half-duplex flow control enable */
#define CR2_XHITH1          0x08        /* TX XON high threshold 1 */
#define CR2_XHITH0          0x04        /* TX XON high threshold 0 */
#define CR2_XLTH1           0x02        /* TX pause frame low threshold 1 */
#define CR2_XLTH0           0x01        /* TX pause frame low threshold 0 */

/*
 *      Bits in the CR3 register
 */

#define CR3_GSPRST          0x80
#define CR3_FORSRST         0x40
#define CR3_FPHYRST         0x20
#define CR3_DIAG            0x10
#define CR3_INTPCTL         0x04
#define CR3_GINTMSK1        0x02
#define CR3_GINTMSK0        0x01

#define ISRCTL_UDPINT       0x8000
#define ISRCTL_TSUPDIS      0x4000
#define ISRCTL_RSUPDIS      0x2000
#define ISRCTL_PMSK1        0x1000
#define ISRCTL_PMSK0        0x0800
#define ISRCTL_INTPD        0x0400
#define ISRCTL_HCRLD        0x0200
#define ISRCTL_SCRLD        0x0100

/*
 *      Bits in the ISR_CTL1 register
 */

#define ISRCTL1_UDPINT      0x80
#define ISRCTL1_TSUPDIS     0x40
#define ISRCTL1_RSUPDIS     0x20
#define ISRCTL1_PMSK1       0x10
#define ISRCTL1_PMSK0       0x08
#define ISRCTL1_INTPD       0x04
#define ISRCTL1_HCRLD       0x02
#define ISRCTL1_SCRLD       0x01

/*
 *      Bits in the TXE_SR register
 */

#define TXESR_TFDBS         0x08
#define TXESR_TDWBS         0x04
#define TXESR_TDRBS         0x02
#define TXESR_TDSTR         0x01

/*
 *      Bits in the RXE_SR register
 */

#define RXESR_RFDBS         0x08
#define RXESR_RDWBS         0x04
#define RXESR_RDRBS         0x02
#define RXESR_RDSTR         0x01

/*
 *      Bits in the ISR register
 */

#define ISR_ISR3            0x80000000UL
#define ISR_ISR2            0x40000000UL
#define ISR_ISR1            0x20000000UL
#define ISR_ISR0            0x10000000UL
#define ISR_TXSTLI          0x02000000UL
#define ISR_RXSTLI          0x01000000UL
#define ISR_HFLD            0x00800000UL
#define ISR_UDPI            0x00400000UL
#define ISR_MIBFI           0x00200000UL
#define ISR_SHDNI           0x00100000UL
#define ISR_PHYI            0x00080000UL
#define ISR_PWEI            0x00040000UL
#define ISR_TMR1I           0x00020000UL
#define ISR_TMR0I           0x00010000UL
#define ISR_SRCI            0x00008000UL
#define ISR_LSTPEI          0x00004000UL
#define ISR_LSTEI           0x00002000UL
#define ISR_OVFI            0x00001000UL
#define ISR_FLONI           0x00000800UL
#define ISR_RACEI           0x00000400UL
#define ISR_TXWB1I          0x00000200UL
#define ISR_TXWB0I          0x00000100UL
#define ISR_PTX3I           0x00000080UL
#define ISR_PTX2I           0x00000040UL
#define ISR_PTX1I           0x00000020UL
#define ISR_PTX0I           0x00000010UL
#define ISR_PTXI            0x00000008UL
#define ISR_PRXI            0x00000004UL
#define ISR_PPTXI           0x00000002UL
#define ISR_PPRXI           0x00000001UL

/*
 *      Bits in the IMR register
 */

#define IMR_TXSTLM          0x02000000UL
#define IMR_UDPIM           0x00400000UL
#define IMR_MIBFIM          0x00200000UL
#define IMR_SHDNIM          0x00100000UL
#define IMR_PHYIM           0x00080000UL
#define IMR_PWEIM           0x00040000UL
#define IMR_TMR1IM          0x00020000UL
#define IMR_TMR0IM          0x00010000UL

#define IMR_SRCIM           0x00008000UL
#define IMR_LSTPEIM         0x00004000UL
#define IMR_LSTEIM          0x00002000UL
#define IMR_OVFIM           0x00001000UL
#define IMR_FLONIM          0x00000800UL
#define IMR_RACEIM          0x00000400UL
#define IMR_TXWB1IM         0x00000200UL
#define IMR_TXWB0IM         0x00000100UL

#define IMR_PTX3IM          0x00000080UL
#define IMR_PTX2IM          0x00000040UL
#define IMR_PTX1IM          0x00000020UL
#define IMR_PTX0IM          0x00000010UL
#define IMR_PTXIM           0x00000008UL
#define IMR_PRXIM           0x00000004UL
#define IMR_PPTXIM          0x00000002UL
#define IMR_PPRXIM          0x00000001UL

/* 0x0013FB0FUL  =  initial value of IMR */

#define INT_MASK_DEF        (IMR_PPTXIM|IMR_PPRXIM|IMR_PTXIM|IMR_PRXIM|\
                            IMR_PWEIM|IMR_TXWB0IM|IMR_TXWB1IM|IMR_FLONIM|\
                            IMR_OVFIM|IMR_LSTEIM|IMR_LSTPEIM|IMR_SRCIM|IMR_MIBFIM|\
                            IMR_SHDNIM|IMR_TMR1IM|IMR_TMR0IM|IMR_TXSTLM)

/*
 *      Bits in the TDCSR0/1, RDCSR0 register
 */

#define TRDCSR_DEAD         0x0008
#define TRDCSR_WAK          0x0004
#define TRDCSR_ACT          0x0002
#define TRDCSR_RUN          0x0001

/*
 *      Bits in the CAMADDR register
 */

#define CAMADDR_CAMEN       0x80
#define CAMADDR_VCAMSL      0x40

/*
 *      Bits in the CAMCR register
 */

#define CAMCR_PS1           0x80
#define CAMCR_PS0           0x40
#define CAMCR_AITRPKT       0x20
#define CAMCR_AITR16        0x10
#define CAMCR_CAMRD         0x08
#define CAMCR_CAMWR         0x04
#define CAMCR_PS_CAM_MASK   0x40
#define CAMCR_PS_CAM_DATA   0x80
#define CAMCR_PS_MAR        0x00

/*
 *      Bits in the MIICFG register
 */

#define MIICFG_MPO1         0x80
#define MIICFG_MPO0         0x40
#define MIICFG_MFDC         0x20

/*
 *      Bits in the MIISR register
 */

#define MIISR_MIDLE         0x80

/*
 *       Bits in the PHYSR0 register
 */

#define PHYSR0_PHYRST       0x80
#define PHYSR0_LINKGD       0x40
#define PHYSR0_FDPX         0x10
#define PHYSR0_SPDG         0x08
#define PHYSR0_SPD10        0x04
#define PHYSR0_RXFLC        0x02
#define PHYSR0_TXFLC        0x01

/*
 *      Bits in the PHYSR1 register
 */

#define PHYSR1_PHYTBI       0x01

/*
 *      Bits in the MIICR register
 */

#define MIICR_MAUTO         0x80
#define MIICR_RCMD          0x40
#define MIICR_WCMD          0x20
#define MIICR_MDPM          0x10
#define MIICR_MOUT          0x08
#define MIICR_MDO           0x04
#define MIICR_MDI           0x02
#define MIICR_MDC           0x01

/*
 *      Bits in the MIIADR register
 */

#define MIIADR_SWMPL        0x80

/*
 *      Bits in the CFGA register
 */

#define CFGA_PMHCTG         0x08
#define CFGA_GPIO1PD        0x04
#define CFGA_ABSHDN         0x02
#define CFGA_PACPI          0x01

/*
 *      Bits in the CFGB register
 */

#define CFGB_GTCKOPT        0x80
#define CFGB_MIIOPT         0x40
#define CFGB_CRSEOPT        0x20
#define CFGB_OFSET          0x10
#define CFGB_CRANDOM        0x08
#define CFGB_CAP            0x04
#define CFGB_MBA            0x02
#define CFGB_BAKOPT         0x01

/*
 *      Bits in the CFGC register
 */

#define CFGC_EELOAD         0x80
#define CFGC_BROPT          0x40
#define CFGC_DLYEN          0x20
#define CFGC_DTSEL          0x10
#define CFGC_BTSEL          0x08
#define CFGC_BPS2           0x04        /* bootrom select[2] */
#define CFGC_BPS1           0x02        /* bootrom select[1] */
#define CFGC_BPS0           0x01        /* bootrom select[0] */

/*
 * Bits in the CFGD register
 */

#define CFGD_IODIS          0x80
#define CFGD_MSLVDACEN      0x40
#define CFGD_CFGDACEN       0x20
#define CFGD_PCI64EN        0x10
#define CFGD_HTMRL4         0x08

/*
 *      Bits in the DCFG1 register
 */

#define DCFG_XMWI           0x8000
#define DCFG_XMRM           0x4000
#define DCFG_XMRL           0x2000
#define DCFG_PERDIS         0x1000
#define DCFG_MRWAIT         0x0400
#define DCFG_MWWAIT         0x0200
#define DCFG_LATMEN         0x0100

/*
 *      Bits in the MCFG0 register
 */

#define MCFG_RXARB          0x0080
#define MCFG_RFT1           0x0020
#define MCFG_RFT0           0x0010
#define MCFG_LOWTHOPT       0x0008
#define MCFG_PQEN           0x0004
#define MCFG_RTGOPT         0x0002
#define MCFG_VIDFR          0x0001

/*
 *      Bits in the MCFG1 register
 */

#define MCFG_TXARB          0x8000
#define MCFG_TXQBK1         0x0800
#define MCFG_TXQBK0         0x0400
#define MCFG_TXQNOBK        0x0200
#define MCFG_SNAPOPT        0x0100

/*
 *      Bits in the PMCC  register
 */

#define PMCC_DSI            0x80
#define PMCC_D2_DIS         0x40
#define PMCC_D1_DIS         0x20
#define PMCC_D3C_EN         0x10
#define PMCC_D3H_EN         0x08
#define PMCC_D2_EN          0x04
#define PMCC_D1_EN          0x02
#define PMCC_D0_EN          0x01

/*
 *      Bits in STICKHW
 */

#define STICKHW_SWPTAG      0x10
#define STICKHW_WOLSR       0x08
#define STICKHW_WOLEN       0x04
#define STICKHW_DS1         0x02        /* R/W by software/cfg cycle */
#define STICKHW_DS0         0x01        /* suspend well DS write port */

/*
 *      Bits in the MIBCR register
 */

#define MIBCR_MIBISTOK      0x80
#define MIBCR_MIBISTGO      0x40
#define MIBCR_MIBINC        0x20
#define MIBCR_MIBHI         0x10
#define MIBCR_MIBFRZ        0x08
#define MIBCR_MIBFLSH       0x04
#define MIBCR_MPTRINI       0x02
#define MIBCR_MIBCLR        0x01

/*
 *      Bits in the EERSV register
 */

#define EERSV_BOOT_RPL      ((u8) 0x01)  /* Boot method selection for VT6110 */

#define EERSV_BOOT_MASK     ((u8) 0x06)
#define EERSV_BOOT_INT19    ((u8) 0x00)
#define EERSV_BOOT_INT18    ((u8) 0x02)
#define EERSV_BOOT_LOCAL    ((u8) 0x04)
#define EERSV_BOOT_BEV      ((u8) 0x06)


/*
 *      Bits in BPCMD
 */

#define BPCMD_BPDNE         0x80
#define BPCMD_EBPWR         0x02
#define BPCMD_EBPRD         0x01

/*
 *      Bits in the EECSR register
 */

#define EECSR_EMBP          0x40        /* eeprom embeded programming */
#define EECSR_RELOAD        0x20        /* eeprom content reload */
#define EECSR_DPM           0x10        /* eeprom direct programming */
#define EECSR_ECS           0x08        /* eeprom CS pin */
#define EECSR_ECK           0x04        /* eeprom CK pin */
#define EECSR_EDI           0x02        /* eeprom DI pin */
#define EECSR_EDO           0x01        /* eeprom DO pin */

/*
 *      Bits in the EMBCMD register
 */

#define EMBCMD_EDONE        0x80
#define EMBCMD_EWDIS        0x08
#define EMBCMD_EWEN         0x04
#define EMBCMD_EWR          0x02
#define EMBCMD_ERD          0x01

/*
 *      Bits in TESTCFG register
 */

#define TESTCFG_HBDIS       0x80

/*
 *      Bits in CHIPGCR register
 */

#define CHIPGCR_FCGMII      0x80
#define CHIPGCR_FCFDX       0x40
#define CHIPGCR_FCRESV      0x20
#define CHIPGCR_FCMODE      0x10
#define CHIPGCR_LPSOPT      0x08
#define CHIPGCR_TM1US       0x04
#define CHIPGCR_TM0US       0x02
#define CHIPGCR_PHYINTEN    0x01

/*
 *      Bits in WOLCR0
 */

#define WOLCR_MSWOLEN7      0x0080      /* enable pattern match filtering */
#define WOLCR_MSWOLEN6      0x0040
#define WOLCR_MSWOLEN5      0x0020
#define WOLCR_MSWOLEN4      0x0010
#define WOLCR_MSWOLEN3      0x0008
#define WOLCR_MSWOLEN2      0x0004
#define WOLCR_MSWOLEN1      0x0002
#define WOLCR_MSWOLEN0      0x0001
#define WOLCR_ARP_EN        0x0001

/*
 *      Bits in WOLCR1
 */

#define WOLCR_LINKOFF_EN      0x0800    /* link off detected enable */
#define WOLCR_LINKON_EN       0x0400    /* link on detected enable */
#define WOLCR_MAGIC_EN        0x0200    /* magic packet filter enable */
#define WOLCR_UNICAST_EN      0x0100    /* unicast filter enable */


/*
 *      Bits in PWCFG
 */

#define PWCFG_PHYPWOPT          0x80    /* internal MII I/F timing */
#define PWCFG_PCISTICK          0x40    /* PCI sticky R/W enable */
#define PWCFG_WOLTYPE           0x20    /* pulse(1) or button (0) */
#define PWCFG_LEGCY_WOL         0x10
#define PWCFG_PMCSR_PME_SR      0x08
#define PWCFG_PMCSR_PME_EN      0x04    /* control by PCISTICK */
#define PWCFG_LEGACY_WOLSR      0x02    /* Legacy WOL_SR shadow */
#define PWCFG_LEGACY_WOLEN      0x01    /* Legacy WOL_EN shadow */

/*
 *      Bits in WOLCFG
 */

#define WOLCFG_PMEOVR           0x80    /* for legacy use, force PMEEN always */
#define WOLCFG_SAM              0x20    /* accept multicast case reset, default=0 */
#define WOLCFG_SAB              0x10    /* accept broadcast case reset, default=0 */
#define WOLCFG_SMIIACC          0x08    /* ?? */
#define WOLCFG_SGENWH           0x02
#define WOLCFG_PHYINTEN         0x01    /* 0:PHYINT trigger enable, 1:use internal MII
                                          to report status change */
/*
 *      Bits in WOLSR1
 */

#define WOLSR_LINKOFF_INT      0x0800
#define WOLSR_LINKON_INT       0x0400
#define WOLSR_MAGIC_INT        0x0200
#define WOLSR_UNICAST_INT      0x0100

/*
 *      Ethernet address filter type
 */

#define PKT_TYPE_NONE               0x0000      /* Turn off receiver */
#define PKT_TYPE_DIRECTED           0x0001      /* obselete, directed address is always accepted */
#define PKT_TYPE_MULTICAST          0x0002
#define PKT_TYPE_ALL_MULTICAST      0x0004
#define PKT_TYPE_BROADCAST          0x0008
#define PKT_TYPE_PROMISCUOUS        0x0020
#define PKT_TYPE_LONG               0x2000      /* NOTE.... the definition of LONG is >2048 bytes in our chip */
#define PKT_TYPE_RUNT               0x4000
#define PKT_TYPE_ERROR              0x8000      /* Accept error packets, e.g. CRC error */

/*
 *      Loopback mode
 */

#define MAC_LB_NONE         0x00
#define MAC_LB_INTERNAL     0x01
#define MAC_LB_EXTERNAL     0x02

/*
 *      Enabled mask value of irq
 */

#if defined(_SIM)
#define IMR_MASK_VALUE      0x0033FF0FUL        /* initial value of IMR
                                                   set IMR0 to 0x0F according to spec */

#else
#define IMR_MASK_VALUE      0x0013FB0FUL        /* initial value of IMR
                                                   ignore MIBFI,RACEI to
                                                   reduce intr. frequency
                                                   NOTE.... do not enable NoBuf int mask at driver driver
                                                      when (1) NoBuf -> RxThreshold = SF
                                                           (2) OK    -> RxThreshold = original value
                                                 */
#endif

/*
 *      Revision id
 */

#define REV_ID_VT3119_A0        0x00
#define REV_ID_VT3119_A1        0x01
#define REV_ID_VT3216_A0        0x10

/*
 *      Max time out delay time
 */

#define W_MAX_TIMEOUT       0x0FFFU


/*
 *      MAC registers as a structure. Cannot be directly accessed this
 *      way but generates offsets for readl/writel() calls
 */

struct mac_regs {
        volatile u8 PAR[6];             /* 0x00 */
        volatile u8 RCR;
        volatile u8 TCR;

        volatile u32 CR0Set;            /* 0x08 */
        volatile u32 CR0Clr;            /* 0x0C */

        volatile u8 MARCAM[8];          /* 0x10 */

        volatile u32 DecBaseHi;         /* 0x18 */
        volatile u16 DbfBaseHi;         /* 0x1C */
        volatile u16 reserved_1E;

        volatile u16 ISRCTL;            /* 0x20 */
        volatile u8 TXESR;
        volatile u8 RXESR;

        volatile u32 ISR;               /* 0x24 */
        volatile u32 IMR;

        volatile u32 TDStatusPort;      /* 0x2C */

        volatile u16 TDCSRSet;          /* 0x30 */
        volatile u8 RDCSRSet;
        volatile u8 reserved_33;
        volatile u16 TDCSRClr;
        volatile u8 RDCSRClr;
        volatile u8 reserved_37;

        volatile u32 RDBaseLo;          /* 0x38 */
        volatile u16 RDIdx;             /* 0x3C */
        volatile u16 reserved_3E;

        volatile u32 TDBaseLo[4];       /* 0x40 */

        volatile u16 RDCSize;           /* 0x50 */
        volatile u16 TDCSize;           /* 0x52 */
        volatile u16 TDIdx[4];          /* 0x54 */
        volatile u16 tx_pause_timer;    /* 0x5C */
        volatile u16 RBRDU;             /* 0x5E */

        volatile u32 FIFOTest0;         /* 0x60 */
        volatile u32 FIFOTest1;         /* 0x64 */

        volatile u8 CAMADDR;            /* 0x68 */
        volatile u8 CAMCR;              /* 0x69 */
        volatile u8 GFTEST;             /* 0x6A */
        volatile u8 FTSTCMD;            /* 0x6B */

        volatile u8 MIICFG;             /* 0x6C */
        volatile u8 MIISR;
        volatile u8 PHYSR0;
        volatile u8 PHYSR1;
        volatile u8 MIICR;
        volatile u8 MIIADR;
        volatile u16 MIIDATA;

        volatile u16 SoftTimer0;        /* 0x74 */
        volatile u16 SoftTimer1;

        volatile u8 CFGA;               /* 0x78 */
        volatile u8 CFGB;
        volatile u8 CFGC;
        volatile u8 CFGD;

        volatile u16 DCFG;              /* 0x7C */
        volatile u16 MCFG;

        volatile u8 TBIST;              /* 0x80 */
        volatile u8 RBIST;
        volatile u8 PMCPORT;
        volatile u8 STICKHW;

        volatile u8 MIBCR;              /* 0x84 */
        volatile u8 reserved_85;
        volatile u8 rev_id;
        volatile u8 PORSTS;

        volatile u32 MIBData;           /* 0x88 */

        volatile u16 EEWrData;

        volatile u8 reserved_8E;
        volatile u8 BPMDWr;
        volatile u8 BPCMD;
        volatile u8 BPMDRd;

        volatile u8 EECHKSUM;           /* 0x92 */
        volatile u8 EECSR;

        volatile u16 EERdData;          /* 0x94 */
        volatile u8 EADDR;
        volatile u8 EMBCMD;


        volatile u8 JMPSR0;             /* 0x98 */
        volatile u8 JMPSR1;
        volatile u8 JMPSR2;
        volatile u8 JMPSR3;
        volatile u8 CHIPGSR;            /* 0x9C */
        volatile u8 TESTCFG;
        volatile u8 DEBUG;
        volatile u8 CHIPGCR;

        volatile u16 WOLCRSet;          /* 0xA0 */
        volatile u8 PWCFGSet;
        volatile u8 WOLCFGSet;

        volatile u16 WOLCRClr;          /* 0xA4 */
        volatile u8 PWCFGCLR;
        volatile u8 WOLCFGClr;

        volatile u16 WOLSRSet;          /* 0xA8 */
        volatile u16 reserved_AA;

        volatile u16 WOLSRClr;          /* 0xAC */
        volatile u16 reserved_AE;

        volatile u16 PatternCRC[8];     /* 0xB0 */
        volatile u32 ByteMask[4][4];    /* 0xC0 */
} __attribute__ ((__packed__));


enum hw_mib {
        HW_MIB_ifRxAllPkts = 0,
        HW_MIB_ifRxOkPkts,
        HW_MIB_ifTxOkPkts,
        HW_MIB_ifRxErrorPkts,
        HW_MIB_ifRxRuntOkPkt,
        HW_MIB_ifRxRuntErrPkt,
        HW_MIB_ifRx64Pkts,
        HW_MIB_ifTx64Pkts,
        HW_MIB_ifRx65To127Pkts,
        HW_MIB_ifTx65To127Pkts,
        HW_MIB_ifRx128To255Pkts,
        HW_MIB_ifTx128To255Pkts,
        HW_MIB_ifRx256To511Pkts,
        HW_MIB_ifTx256To511Pkts,
        HW_MIB_ifRx512To1023Pkts,
        HW_MIB_ifTx512To1023Pkts,
        HW_MIB_ifRx1024To1518Pkts,
        HW_MIB_ifTx1024To1518Pkts,
        HW_MIB_ifTxEtherCollisions,
        HW_MIB_ifRxPktCRCE,
        HW_MIB_ifRxJumboPkts,
        HW_MIB_ifTxJumboPkts,
        HW_MIB_ifRxMacControlFrames,
        HW_MIB_ifTxMacControlFrames,
        HW_MIB_ifRxPktFAE,
        HW_MIB_ifRxLongOkPkt,
        HW_MIB_ifRxLongPktErrPkt,
        HW_MIB_ifTXSQEErrors,
        HW_MIB_ifRxNobuf,
        HW_MIB_ifRxSymbolErrors,
        HW_MIB_ifInRangeLengthErrors,
        HW_MIB_ifLateCollisions,
        HW_MIB_SIZE
};

enum chip_type {
        CHIP_TYPE_VT6110 = 1,
};

struct velocity_info_tbl {
        enum chip_type chip_id;
        char *name;
        int io_size;
        int txqueue;
        u32 flags;
};

#define mac_hw_mibs_init(regs) {\
        BYTE_REG_BITS_ON(MIBCR_MIBFRZ,&((regs)->MIBCR));\
        BYTE_REG_BITS_ON(MIBCR_MIBCLR,&((regs)->MIBCR));\
        do {}\
                while (BYTE_REG_BITS_IS_ON(MIBCR_MIBCLR,&((regs)->MIBCR)));\
        BYTE_REG_BITS_OFF(MIBCR_MIBFRZ,&((regs)->MIBCR));\
}

#define mac_read_isr(regs)              readl(&((regs)->ISR))
#define mac_write_isr(regs, x)          writel((x),&((regs)->ISR))
#define mac_clear_isr(regs)             writel(0xffffffffL,&((regs)->ISR))

#define mac_write_int_mask(mask, regs)  writel((mask),&((regs)->IMR));
#define mac_disable_int(regs)           writel(CR0_GINTMSK1,&((regs)->CR0Clr))
#define mac_enable_int(regs)            writel(CR0_GINTMSK1,&((regs)->CR0Set))

#define mac_hw_mibs_read(regs, MIBs) {\
        int i;\
        BYTE_REG_BITS_ON(MIBCR_MPTRINI,&((regs)->MIBCR));\
        for (i=0;i<HW_MIB_SIZE;i++) {\
                (MIBs)[i]=readl(&((regs)->MIBData));\
        }\
}

#define mac_set_dma_length(regs, n) {\
        BYTE_REG_BITS_SET((n),0x07,&((regs)->DCFG));\
}

#define mac_set_rx_thresh(regs, n) {\
        BYTE_REG_BITS_SET((n),(MCFG_RFT0|MCFG_RFT1),&((regs)->MCFG));\
}

#define mac_rx_queue_run(regs) {\
        writeb(TRDCSR_RUN, &((regs)->RDCSRSet));\
}

#define mac_rx_queue_wake(regs) {\
        writeb(TRDCSR_WAK, &((regs)->RDCSRSet));\
}

#define mac_tx_queue_run(regs, n) {\
        writew(TRDCSR_RUN<<((n)*4),&((regs)->TDCSRSet));\
}

#define mac_tx_queue_wake(regs, n) {\
        writew(TRDCSR_WAK<<(n*4),&((regs)->TDCSRSet));\
}

#define mac_eeprom_reload(regs) {\
        int i=0;\
        BYTE_REG_BITS_ON(EECSR_RELOAD,&((regs)->EECSR));\
        do {\
                udelay(10);\
                if (i++>0x1000) {\
                        break;\
                }\
        }while (BYTE_REG_BITS_IS_ON(EECSR_RELOAD,&((regs)->EECSR)));\
}

enum velocity_cam_type {
        VELOCITY_VLAN_ID_CAM = 0,
        VELOCITY_MULTICAST_CAM
};

/**
 *      mac_get_cam_mask        -       Read a CAM mask
 *      @regs: register block for this velocity
 *      @mask: buffer to store mask
 *      @cam_type: CAM to fetch
 *
 *      Fetch the mask bits of the selected CAM and store them into the
 *      provided mask buffer.
 */

static inline void mac_get_cam_mask(struct mac_regs __iomem * regs, u8 * mask, enum velocity_cam_type cam_type)
{
        int i;
        /* Select CAM mask */
        BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);

        if (cam_type == VELOCITY_VLAN_ID_CAM)
                writeb(CAMADDR_VCAMSL, &regs->CAMADDR);
        else
                writeb(0, &regs->CAMADDR);

        /* read mask */
        for (i = 0; i < 8; i++)
                *mask++ = readb(&(regs->MARCAM[i]));

        /* disable CAMEN */
        writeb(0, &regs->CAMADDR);

        /* Select mar */
        BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);

}

/**
 *      mac_set_cam_mask        -       Set a CAM mask
 *      @regs: register block for this velocity
 *      @mask: CAM mask to load
 *      @cam_type: CAM to store
 *
 *      Store a new mask into a CAM
 */

static inline void mac_set_cam_mask(struct mac_regs __iomem * regs, u8 * mask, enum velocity_cam_type cam_type)
{
        int i;
        /* Select CAM mask */
        BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);

        if (cam_type == VELOCITY_VLAN_ID_CAM)
                writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, &regs->CAMADDR);
        else
                writeb(CAMADDR_CAMEN, &regs->CAMADDR);

        for (i = 0; i < 8; i++) {
                writeb(*mask++, &(regs->MARCAM[i]));
        }
        /* disable CAMEN */
        writeb(0, &regs->CAMADDR);

        /* Select mar */
        BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
}

/**
 *      mac_set_cam     -       set CAM data
 *      @regs: register block of this velocity
 *      @idx: Cam index
 *      @addr: 2 or 6 bytes of CAM data
 *      @cam_type: CAM to load
 *
 *      Load an address or vlan tag into a CAM
 */

static inline void mac_set_cam(struct mac_regs __iomem * regs, int idx, u8 *addr, enum velocity_cam_type cam_type)
{
        int i;

        /* Select CAM mask */
        BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);

        idx &= (64 - 1);

        if (cam_type == VELOCITY_VLAN_ID_CAM)
                writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, &regs->CAMADDR);
        else
                writeb(CAMADDR_CAMEN | idx, &regs->CAMADDR);

        if (cam_type == VELOCITY_VLAN_ID_CAM)
                writew(*((u16 *) addr), &regs->MARCAM[0]);
        else {
                for (i = 0; i < 6; i++) {
                        writeb(*addr++, &(regs->MARCAM[i]));
                }
        }
        BYTE_REG_BITS_ON(CAMCR_CAMWR, &regs->CAMCR);

        udelay(10);

        writeb(0, &regs->CAMADDR);

        /* Select mar */
        BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
}

/**
 *      mac_get_cam     -       fetch CAM data
 *      @regs: register block of this velocity
 *      @idx: Cam index
 *      @addr: buffer to hold up to 6 bytes of CAM data
 *      @cam_type: CAM to load
 *
 *      Load an address or vlan tag from a CAM into the buffer provided by
 *      the caller. VLAN tags are 2 bytes the address cam entries are 6.
 */

static inline void mac_get_cam(struct mac_regs __iomem * regs, int idx, u8 *addr, enum velocity_cam_type cam_type)
{
        int i;

        /* Select CAM mask */
        BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);

        idx &= (64 - 1);

        if (cam_type == VELOCITY_VLAN_ID_CAM)
                writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, &regs->CAMADDR);
        else
                writeb(CAMADDR_CAMEN | idx, &regs->CAMADDR);

        BYTE_REG_BITS_ON(CAMCR_CAMRD, &regs->CAMCR);

        udelay(10);

        if (cam_type == VELOCITY_VLAN_ID_CAM)
                *((u16 *) addr) = readw(&(regs->MARCAM[0]));
        else
                for (i = 0; i < 6; i++, addr++)
                        *((u8 *) addr) = readb(&(regs->MARCAM[i]));

        writeb(0, &regs->CAMADDR);

        /* Select mar */
        BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, &regs->CAMCR);
}

/**
 *      mac_wol_reset   -       reset WOL after exiting low power
 *      @regs: register block of this velocity
 *
 *      Called after we drop out of wake on lan mode in order to
 *      reset the Wake on lan features. This function doesn't restore
 *      the rest of the logic from the result of sleep/wakeup
 */

inline static void mac_wol_reset(struct mac_regs __iomem * regs)
{

        /* Turn off SWPTAG right after leaving power mode */
        BYTE_REG_BITS_OFF(STICKHW_SWPTAG, &regs->STICKHW);
        /* clear sticky bits */
        BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), &regs->STICKHW);

        BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, &regs->CHIPGCR);
        BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, &regs->CHIPGCR);
        /* disable force PME-enable */
        writeb(WOLCFG_PMEOVR, &regs->WOLCFGClr);
        /* disable power-event config bit */
        writew(0xFFFF, &regs->WOLCRClr);
        /* clear power status */
        writew(0xFFFF, &regs->WOLSRClr);
}


/*
 * Header for WOL definitions. Used to compute hashes
 */

typedef u8 MCAM_ADDR[ETH_ALEN];

struct arp_packet {
        u8 dest_mac[ETH_ALEN];
        u8 src_mac[ETH_ALEN];
        u16 type;
        u16 ar_hrd;
        u16 ar_pro;
        u8 ar_hln;
        u8 ar_pln;
        u16 ar_op;
        u8 ar_sha[ETH_ALEN];
        u8 ar_sip[4];
        u8 ar_tha[ETH_ALEN];
        u8 ar_tip[4];
} __attribute__ ((__packed__));

struct _magic_packet {
        u8 dest_mac[6];
        u8 src_mac[6];
        u16 type;
        u8 MAC[16][6];
        u8 password[6];
} __attribute__ ((__packed__));

/*
 *      Store for chip context when saving and restoring status. Not
 *      all fields are saved/restored currently.
 */

struct velocity_context {
        u8 mac_reg[256];
        MCAM_ADDR cam_addr[MCAM_SIZE];
        u16 vcam[VCAM_SIZE];
        u32 cammask[2];
        u32 patcrc[2];
        u32 pattern[8];
};


/*
 *      MII registers.
 */


/*
 *      Registers in the MII (offset unit is WORD)
 */

#define MII_REG_BMCR        0x00        // physical address
#define MII_REG_BMSR        0x01        //
#define MII_REG_PHYID1      0x02        // OUI
#define MII_REG_PHYID2      0x03        // OUI + Module ID + REV ID
#define MII_REG_ANAR        0x04        //
#define MII_REG_ANLPAR      0x05        //
#define MII_REG_G1000CR     0x09        //
#define MII_REG_G1000SR     0x0A        //
#define MII_REG_MODCFG      0x10        //
#define MII_REG_TCSR        0x16        //
#define MII_REG_PLED        0x1B        //
// NS, MYSON only
#define MII_REG_PCR         0x17        //
// ESI only
#define MII_REG_PCSR        0x17        //
#define MII_REG_AUXCR       0x1C        //

// Marvell 88E1000/88E1000S
#define MII_REG_PSCR        0x10        // PHY specific control register

//
// Bits in the BMCR register
//
#define BMCR_RESET          0x8000      //
#define BMCR_LBK            0x4000      //
#define BMCR_SPEED100       0x2000      //
#define BMCR_AUTO           0x1000      //
#define BMCR_PD             0x0800      //
#define BMCR_ISO            0x0400      //
#define BMCR_REAUTO         0x0200      //
#define BMCR_FDX            0x0100      //
#define BMCR_SPEED1G        0x0040      //
//
// Bits in the BMSR register
//
#define BMSR_AUTOCM         0x0020      //
#define BMSR_LNK            0x0004      //

//
// Bits in the ANAR register
//
#define ANAR_ASMDIR         0x0800      // Asymmetric PAUSE support
#define ANAR_PAUSE          0x0400      // Symmetric PAUSE Support
#define ANAR_T4             0x0200      //
#define ANAR_TXFD           0x0100      //
#define ANAR_TX             0x0080      //
#define ANAR_10FD           0x0040      //
#define ANAR_10             0x0020      //
//
// Bits in the ANLPAR register
//
#define ANLPAR_ASMDIR       0x0800      // Asymmetric PAUSE support
#define ANLPAR_PAUSE        0x0400      // Symmetric PAUSE Support
#define ANLPAR_T4           0x0200      //
#define ANLPAR_TXFD         0x0100      //
#define ANLPAR_TX           0x0080      //
#define ANLPAR_10FD         0x0040      //
#define ANLPAR_10           0x0020      //

//
// Bits in the G1000CR register
//
#define G1000CR_1000FD      0x0200      // PHY is 1000-T Full-duplex capable
#define G1000CR_1000        0x0100      // PHY is 1000-T Half-duplex capable

//
// Bits in the G1000SR register
//
#define G1000SR_1000FD      0x0800      // LP PHY is 1000-T Full-duplex capable
#define G1000SR_1000        0x0400      // LP PHY is 1000-T Half-duplex capable

#define TCSR_ECHODIS        0x2000      //
#define AUXCR_MDPPS         0x0004      //

// Bits in the PLED register
#define PLED_LALBE                      0x0004  //

// Marvell 88E1000/88E1000S Bits in the PHY specific control register (10h)
#define PSCR_ACRSTX         0x0800      // Assert CRS on Transmit

#define PHYID_CICADA_CS8201 0x000FC410UL
#define PHYID_VT3216_32BIT  0x000FC610UL
#define PHYID_VT3216_64BIT  0x000FC600UL
#define PHYID_MARVELL_1000  0x01410C50UL
#define PHYID_MARVELL_1000S 0x01410C40UL

#define PHYID_REV_ID_MASK   0x0000000FUL

#define PHYID_GET_PHY_REV_ID(i)     ((i) & PHYID_REV_ID_MASK)
#define PHYID_GET_PHY_ID(i)         ((i) & ~PHYID_REV_ID_MASK)

#define MII_REG_BITS_ON(x,i,p) do {\
    u16 w;\
    velocity_mii_read((p),(i),&(w));\
    (w)|=(x);\
    velocity_mii_write((p),(i),(w));\
} while (0)

#define MII_REG_BITS_OFF(x,i,p) do {\
    u16 w;\
    velocity_mii_read((p),(i),&(w));\
    (w)&=(~(x));\
    velocity_mii_write((p),(i),(w));\
} while (0)

#define MII_REG_BITS_IS_ON(x,i,p) ({\
    u16 w;\
    velocity_mii_read((p),(i),&(w));\
    ((int) ((w) & (x)));})

#define MII_GET_PHY_ID(p) ({\
    u32 id;\
    velocity_mii_read((p),MII_REG_PHYID2,(u16 *) &id);\
    velocity_mii_read((p),MII_REG_PHYID1,((u16 *) &id)+1);\
    (id);})

/*
 * Inline debug routine
 */


enum velocity_msg_level {
        MSG_LEVEL_ERR = 0,      //Errors that will cause abnormal operation.
        MSG_LEVEL_NOTICE = 1,   //Some errors need users to be notified.
        MSG_LEVEL_INFO = 2,     //Normal message.
        MSG_LEVEL_VERBOSE = 3,  //Will report all trival errors.
        MSG_LEVEL_DEBUG = 4     //Only for debug purpose.
};

#ifdef VELOCITY_DEBUG
#define ASSERT(x) { \
        if (!(x)) { \
                printk(KERN_ERR "assertion %s failed: file %s line %d\n", #x,\
                        __FUNCTION__, __LINE__);\
                BUG(); \
        }\
}
#define VELOCITY_DBG(p,args...) printk(p, ##args)
#else
#define ASSERT(x)
#define VELOCITY_DBG(x)
#endif

#define VELOCITY_PRT(l, p, args...) do {if (l<=msglevel) printk( p ,##args);} while (0)

#define VELOCITY_PRT_CAMMASK(p,t) {\
        int i;\
        if ((t)==VELOCITY_MULTICAST_CAM) {\
                for (i=0;i<(MCAM_SIZE/8);i++)\
                        printk("%02X",(p)->mCAMmask[i]);\
        }\
        else {\
                for (i=0;i<(VCAM_SIZE/8);i++)\
                        printk("%02X",(p)->vCAMmask[i]);\
        }\
        printk("\n");\
}



#define     VELOCITY_WOL_MAGIC             0x00000000UL
#define     VELOCITY_WOL_PHY               0x00000001UL
#define     VELOCITY_WOL_ARP               0x00000002UL
#define     VELOCITY_WOL_UCAST             0x00000004UL
#define     VELOCITY_WOL_BCAST             0x00000010UL
#define     VELOCITY_WOL_MCAST             0x00000020UL
#define     VELOCITY_WOL_MAGIC_SEC         0x00000040UL

/*
 *      Flags for options
 */

#define     VELOCITY_FLAGS_TAGGING         0x00000001UL
#define     VELOCITY_FLAGS_TX_CSUM         0x00000002UL
#define     VELOCITY_FLAGS_RX_CSUM         0x00000004UL
#define     VELOCITY_FLAGS_IP_ALIGN        0x00000008UL
#define     VELOCITY_FLAGS_VAL_PKT_LEN     0x00000010UL

#define     VELOCITY_FLAGS_FLOW_CTRL       0x01000000UL

/*
 *      Flags for driver status
 */

#define     VELOCITY_FLAGS_OPENED          0x00010000UL
#define     VELOCITY_FLAGS_VMNS_CONNECTED  0x00020000UL
#define     VELOCITY_FLAGS_VMNS_COMMITTED  0x00040000UL
#define     VELOCITY_FLAGS_WOL_ENABLED     0x00080000UL

/*
 *      Flags for MII status
 */

#define     VELOCITY_LINK_FAIL             0x00000001UL
#define     VELOCITY_SPEED_10              0x00000002UL
#define     VELOCITY_SPEED_100             0x00000004UL
#define     VELOCITY_SPEED_1000            0x00000008UL
#define     VELOCITY_DUPLEX_FULL           0x00000010UL
#define     VELOCITY_AUTONEG_ENABLE        0x00000020UL
#define     VELOCITY_FORCED_BY_EEPROM      0x00000040UL

/*
 *      For velocity_set_media_duplex
 */

#define     VELOCITY_LINK_CHANGE           0x00000001UL

enum speed_opt {
        SPD_DPX_AUTO = 0,
        SPD_DPX_100_HALF = 1,
        SPD_DPX_100_FULL = 2,
        SPD_DPX_10_HALF = 3,
        SPD_DPX_10_FULL = 4
};

enum velocity_init_type {
        VELOCITY_INIT_COLD = 0,
        VELOCITY_INIT_RESET,
        VELOCITY_INIT_WOL
};

enum velocity_flow_cntl_type {
        FLOW_CNTL_DEFAULT = 1,
        FLOW_CNTL_TX,
        FLOW_CNTL_RX,
        FLOW_CNTL_TX_RX,
        FLOW_CNTL_DISABLE,
};

struct velocity_opt {
        int numrx;                      /* Number of RX descriptors */
        int numtx;                      /* Number of TX descriptors */
        enum speed_opt spd_dpx;         /* Media link mode */
        int vid;                        /* vlan id */
        int DMA_length;                 /* DMA length */
        int rx_thresh;                  /* RX_THRESH */
        int flow_cntl;
        int wol_opts;                   /* Wake on lan options */
        int td_int_count;
        int int_works;
        int rx_bandwidth_hi;
        int rx_bandwidth_lo;
        int rx_bandwidth_en;
        u32 flags;
};

struct velocity_info {
        struct list_head list;

        struct pci_dev *pdev;
        struct net_device *dev;
        struct net_device_stats stats;

        dma_addr_t rd_pool_dma;
        dma_addr_t td_pool_dma[TX_QUEUE_NO];

        dma_addr_t tx_bufs_dma;
        u8 *tx_bufs;

        u8 ip_addr[4];
        enum chip_type chip_id;

        struct mac_regs __iomem * mac_regs;
        unsigned long memaddr;
        unsigned long ioaddr;
        u32 io_size;

        u8 rev_id;

#define AVAIL_TD(p,q)   ((p)->options.numtx-((p)->td_used[(q)]))

        int num_txq;

        volatile int td_used[TX_QUEUE_NO];
        int td_curr[TX_QUEUE_NO];
        int td_tail[TX_QUEUE_NO];
        struct tx_desc *td_rings[TX_QUEUE_NO];
        struct velocity_td_info *td_infos[TX_QUEUE_NO];

        int rd_curr;
        int rd_dirty;
        u32 rd_filled;
        struct rx_desc *rd_ring;
        struct velocity_rd_info *rd_info;       /* It's an array */

#define GET_RD_BY_IDX(vptr, idx)   (vptr->rd_ring[idx])
        u32 mib_counter[MAX_HW_MIB_COUNTER];
        struct velocity_opt options;

        u32 int_mask;

        u32 flags;

        int rx_buf_sz;
        u32 mii_status;
        u32 phy_id;
        int multicast_limit;

        u8 vCAMmask[(VCAM_SIZE / 8)];
        u8 mCAMmask[(MCAM_SIZE / 8)];

        spinlock_t lock;

        int wol_opts;
        u8 wol_passwd[6];

        struct velocity_context context;

        u32 ticks;
        u32 rx_bytes;

};

/**
 *      velocity_get_ip         -       find an IP address for the device
 *      @vptr: Velocity to query
 *
 *      Dig out an IP address for this interface so that we can
 *      configure wakeup with WOL for ARP. If there are multiple IP
 *      addresses on this chain then we use the first - multi-IP WOL is not
 *      supported.
 *
 *      CHECK ME: locking
 */

inline static int velocity_get_ip(struct velocity_info *vptr)
{
        struct in_device *in_dev = (struct in_device *) vptr->dev->ip_ptr;
        struct in_ifaddr *ifa;

        if (in_dev != NULL) {
                ifa = (struct in_ifaddr *) in_dev->ifa_list;
                if (ifa != NULL) {
                        memcpy(vptr->ip_addr, &ifa->ifa_address, 4);
                        return 0;
                }
        }
        return -ENOENT;
}

/**
 *      velocity_update_hw_mibs -       fetch MIB counters from chip
 *      @vptr: velocity to update
 *
 *      The velocity hardware keeps certain counters in the hardware
 *      side. We need to read these when the user asks for statistics
 *      or when they overflow (causing an interrupt). The read of the
 *      statistic clears it, so we keep running master counters in user
 *      space.
 */

static inline void velocity_update_hw_mibs(struct velocity_info *vptr)
{
        u32 tmp;
        int i;
        BYTE_REG_BITS_ON(MIBCR_MIBFLSH, &(vptr->mac_regs->MIBCR));

        while (BYTE_REG_BITS_IS_ON(MIBCR_MIBFLSH, &(vptr->mac_regs->MIBCR)));

        BYTE_REG_BITS_ON(MIBCR_MPTRINI, &(vptr->mac_regs->MIBCR));
        for (i = 0; i < HW_MIB_SIZE; i++) {
                tmp = readl(&(vptr->mac_regs->MIBData)) & 0x00FFFFFFUL;
                vptr->mib_counter[i] += tmp;
        }
}

/**
 *      init_flow_control_register      -       set up flow control
 *      @vptr: velocity to configure
 *
 *      Configure the flow control registers for this velocity device.
 */

static inline void init_flow_control_register(struct velocity_info *vptr)
{
        struct mac_regs __iomem * regs = vptr->mac_regs;

        /* Set {XHITH1, XHITH0, XLTH1, XLTH0} in FlowCR1 to {1, 0, 1, 1}
           depend on RD=64, and Turn on XNOEN in FlowCR1 */
        writel((CR0_XONEN | CR0_XHITH1 | CR0_XLTH1 | CR0_XLTH0), &regs->CR0Set);
        writel((CR0_FDXTFCEN | CR0_FDXRFCEN | CR0_HDXFCEN | CR0_XHITH0), &regs->CR0Clr);

        /* Set TxPauseTimer to 0xFFFF */
        writew(0xFFFF, &regs->tx_pause_timer);

        /* Initialize RBRDU to Rx buffer count. */
        writew(vptr->options.numrx, &regs->RBRDU);
}


#endif