FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/rtl81x9reg.h

     /*      $NetBSD: rtl81x9reg.h,v 1.32.4.4 2009/06/19 21:51:43 snj Exp $  */
     
     /*
      * Copyright (c) 1997, 1998
      *      Bill Paul <wpaul@ctr.columbia.edu>.  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. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Bill Paul.
     * 4. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``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 Bill Paul OR THE VOICES IN HIS HEAD
     * 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.
     *
     *      FreeBSD Id: if_rlreg.h,v 1.9 1999/06/20 18:56:09 wpaul Exp
     */
    
    /*
     * RealTek 8129/8139 register offsets
     */
    #define RTK_IDR0        0x0000          /* ID register 0 (station addr) */
    #define RTK_IDR1        0x0001          /* Must use 32-bit accesses (?) */
    #define RTK_IDR2        0x0002
    #define RTK_IDR3        0x0003
    #define RTK_IDR4        0x0004
    #define RTK_IDR5        0x0005
                                            /* 0006-0007 reserved */
    #define RTK_MAR0        0x0008          /* Multicast hash table */
    #define RTK_MAR1        0x0009
    #define RTK_MAR2        0x000A
    #define RTK_MAR3        0x000B
    #define RTK_MAR4        0x000C
    #define RTK_MAR5        0x000D
    #define RTK_MAR6        0x000E
    #define RTK_MAR7        0x000F
    
    #define RTK_TXSTAT0     0x0010          /* status of TX descriptor 0 */
    #define RTK_TXSTAT1     0x0014          /* status of TX descriptor 1 */
    #define RTK_TXSTAT2     0x0018          /* status of TX descriptor 2 */
    #define RTK_TXSTAT3     0x001C          /* status of TX descriptor 3 */
    
    #define RTK_TXADDR0     0x0020          /* address of TX descriptor 0 */
    #define RTK_TXADDR1     0x0024          /* address of TX descriptor 1 */
    #define RTK_TXADDR2     0x0028          /* address of TX descriptor 2 */
    #define RTK_TXADDR3     0x002C          /* address of TX descriptor 3 */
    
    #define RTK_RXADDR              0x0030  /* RX ring start address */
    #define RTK_RX_EARLY_BYTES      0x0034  /* RX early byte count */
    #define RTK_RX_EARLY_STAT       0x0036  /* RX early status */
    #define RTK_COMMAND     0x0037          /* command register */
    #define RTK_CURRXADDR   0x0038          /* current address of packet read */
    #define RTK_CURRXBUF    0x003A          /* current RX buffer address */
    #define RTK_IMR         0x003C          /* interrupt mask register */
    #define RTK_ISR         0x003E          /* interrupt status register */
    #define RTK_TXCFG       0x0040          /* transmit config */
    #define RTK_RXCFG       0x0044          /* receive config */
    #define RTK_TIMERCNT    0x0048          /* timer count register */
    #define RTK_MISSEDPKT   0x004C          /* missed packet counter */
    #define RTK_EECMD       0x0050          /* EEPROM command register */
    #define RTK_CFG0        0x0051          /* config register #0 */
    #define RTK_CFG1        0x0052          /* config register #1 */
                                            /* 0053-0057 reserved */
    #define RTK_MEDIASTAT   0x0058          /* media status register (8139) */
                                            /* 0059-005A reserved */
    #define RTK_MII         0x005A          /* 8129 chip only */
    #define RTK_HALTCLK     0x005B
    #define RTK_MULTIINTR   0x005C          /* multiple interrupt */
    #define RTK_PCIREV      0x005E          /* PCI revision value */
                                            /* 005F reserved */
    #define RTK_TXSTAT_ALL  0x0060          /* TX status of all descriptors */
    
    /* Direct PHY access registers only available on 8139 */
    #define RTK_BMCR        0x0062          /* PHY basic mode control */
    #define RTK_BMSR        0x0064          /* PHY basic mode status */
    #define RTK_ANAR        0x0066          /* PHY autoneg advert */
    #define RTK_LPAR        0x0068          /* PHY link partner ability */
    #define RTK_ANER        0x006A          /* PHY autoneg expansion */
    
    #define RTK_DISCCNT     0x006C          /* disconnect counter */
    #define RTK_FALSECAR    0x006E          /* false carrier counter */
   #define RTK_NWAYTST     0x0070          /* NWAY test register */
   #define RTK_RX_ER       0x0072          /* RX_ER counter */
   #define RTK_CSCFG       0x0074          /* CS configuration register */
   
   /*
    * When operating in special C+ mode, some of the registers in an
    * 8139C+ chip have different definitions. These are also used for
    * the 8169 gigE chip.
    */
   #define RTK_DUMPSTATS_LO        0x0010  /* counter dump command register */
   #define RTK_DUMPSTATS_HI        0x0014  /* counter dump command register */
   #define RTK_TXLIST_ADDR_LO      0x0020  /* 64 bits, 256 byte alignment */
   #define RTK_TXLIST_ADDR_HI      0x0024  /* 64 bits, 256 byte alignment */
   #define RTK_TXLIST_ADDR_HPRIO_LO        0x0028  /* 64 bits, 256 byte aligned */
   #define RTK_TXLIST_ADDR_HPRIO_HI        0x002C  /* 64 bits, 256 byte aligned */
   #define RTK_CFG2                0x0053
   #define RTK_TIMERINT            0x0054  /* interrupt on timer expire */
   #define RTK_TXSTART             0x00D9  /* 8 bits */
   #define RTK_CPLUS_CMD           0x00E0  /* 16 bits */
   #define RTK_RXLIST_ADDR_LO      0x00E4  /* 64 bits, 256 byte alignment */
   #define RTK_RXLIST_ADDR_HI      0x00E8  /* 64 bits, 256 byte alignment */
   #define RTK_EARLY_TX_THRESH     0x00EC  /* 8 bits */
   
   /*
    * Registers specific to the 8169 gigE chip
    */
   #define RTK_GTXSTART            0x0038  /* 8 bits */
   #define RTK_TIMERINT_8169       0x0058  /* different offset than 8139 */
   #define RTK_PHYAR               0x0060
   #define RTK_CSIDR               0x0064          
   #define RTK_CSIAR               0x0068          
   #define RTK_TBI_LPAR            0x006A
   #define RTK_GMEDIASTAT          0x006C  /* 8 bits */
   #define RTK_EPHYAR              0x0080
   #define RTK_LDPS                0x0082  /* Link Down Power Saving */
   #define RTK_DBG_REG             0x00D1
   #define RTK_MAXRXPKTLEN         0x00DA  /* 16 bits, chip multiplies by 8 */
   #define RTK_IM                  0x00E2
   
   /*
    * TX config register bits
    */
   #define RTK_TXCFG_CLRABRT       0x00000001      /* retransmit aborted pkt */
   #define RTK_TXCFG_MAXDMA        0x00000700      /* max DMA burst size */
   #define RTK_TXCFG_CRCAPPEND     0x00010000      /* CRC append (0 = yes) */
   #define RTK_TXCFG_LOOPBKTST     0x00060000      /* loopback test */
   #define RTK_TXCFG_IFG2          0x00080000      /* 8169 only */
   #define RTK_TXCFG_IFG           0x03000000      /* interframe gap */
   #define RTK_TXCFG_HWREV         0x7CC00000
   
   #define RTK_LOOPTEST_OFF                0x00000000
   #define RTK_LOOPTEST_ON         0x00020000
   #define RTK_LOOPTEST_ON_CPLUS   0x00060000
   
   /* Known revision codes. */
   #define RTK_HWREV_8169          0x00000000
   #define RTK_HWREV_8110S         0x00800000
   #define RTK_HWREV_8169S         0x04000000
   #define RTK_HWREV_8169_8110SB   0x10000000
   #define RTK_HWREV_8169_8110SC   0x18000000
   #define RTK_HWREV_8102EL        0x24800000
   #define RTK_HWREV_8103E         0x24C00000
   #define RTK_HWREV_8168D         0x28000000
   #define RTK_HWREV_8168DP        0x28800000
   #define RTK_HWREV_8168_SPIN1    0x30000000
   #define RTK_HWREV_8100E         0x30800000
   #define RTK_HWREV_8101E         0x34000000
   #define RTK_HWREV_8102E         0x34800000
   #define RTK_HWREV_8168_SPIN2    0x38000000
   #define RTK_HWREV_8168_SPIN3    0x38400000
   #define RTK_HWREV_8100E_SPIN2   0x38800000
   #define RTK_HWREV_8168C         0x3C000000
   #define RTK_HWREV_8168C_SPIN2   0x3C400000
   #define RTK_HWREV_8168CP        0x3C800000
   #define RTK_HWREV_8139          0x60000000
   #define RTK_HWREV_8139A         0x70000000
   #define RTK_HWREV_8139AG        0x70800000
   #define RTK_HWREV_8139B         0x78000000
   #define RTK_HWREV_8130          0x7C000000
   #define RTK_HWREV_8139C         0x74000000
   #define RTK_HWREV_8139D         0x74400000
   #define RTK_HWREV_8139CPLUS     0x74800000
   #define RTK_HWREV_8101          0x74c00000
   #define RTK_HWREV_8100          0x78800000
   
   #define RTK_TXDMA_16BYTES       0x00000000
   #define RTK_TXDMA_32BYTES       0x00000100
   #define RTK_TXDMA_64BYTES       0x00000200
   #define RTK_TXDMA_128BYTES      0x00000300
   #define RTK_TXDMA_256BYTES      0x00000400
   #define RTK_TXDMA_512BYTES      0x00000500
   #define RTK_TXDMA_1024BYTES     0x00000600
   #define RTK_TXDMA_2048BYTES     0x00000700
   
   /*
    * Transmit descriptor status register bits.
    */
   #define RTK_TXSTAT_LENMASK      0x00001FFF
   #define RTK_TXSTAT_OWN          0x00002000
   #define RTK_TXSTAT_TX_UNDERRUN  0x00004000
   #define RTK_TXSTAT_TX_OK        0x00008000
   #define RTK_TXSTAT_EARLY_THRESH 0x003F0000
   #define RTK_TXSTAT_COLLCNT      0x0F000000
   #define RTK_TXSTAT_CARR_HBEAT   0x10000000
   #define RTK_TXSTAT_OUTOFWIN     0x20000000
   #define RTK_TXSTAT_TXABRT       0x40000000
   #define RTK_TXSTAT_CARRLOSS     0x80000000
   
   #define RTK_TXSTAT_THRESH(x)    (((x) << 16) & RTK_TXSTAT_EARLY_THRESH) 
   #define RTK_TXTH_256            8       /* (x) * 32 bytes */
   #define RTK_TXTH_1536           48
   
   /*
    * Interrupt status register bits.
    */
   #define RTK_ISR_RX_OK           0x0001
   #define RTK_ISR_RX_ERR          0x0002
   #define RTK_ISR_TX_OK           0x0004
   #define RTK_ISR_TX_ERR          0x0008
   #define RTK_ISR_RX_OVERRUN      0x0010
   #define RTK_ISR_PKT_UNDERRUN    0x0020
   #define RTK_ISR_LINKCHG         0x0020  /* 8169 only */
   #define RTK_ISR_FIFO_OFLOW      0x0040  /* 8139 only */
   #define RTK_ISR_TX_DESC_UNAVAIL 0x0080  /* C+ only */
   #define RTK_ISR_SWI             0x0100  /* C+ only */
   #define RTK_ISR_CABLE_LEN_CHGD  0x2000
   #define RTK_ISR_PCS_TIMEOUT     0x4000  /* 8129 only */
   #define RTK_ISR_TIMEOUT_EXPIRED 0x4000
   #define RTK_ISR_SYSTEM_ERR      0x8000
   
   #define RTK_INTRS       \
           (RTK_ISR_TX_OK|RTK_ISR_RX_OK|RTK_ISR_RX_ERR|RTK_ISR_TX_ERR|     \
           RTK_ISR_RX_OVERRUN|RTK_ISR_PKT_UNDERRUN|RTK_ISR_FIFO_OFLOW|     \
           RTK_ISR_PCS_TIMEOUT|RTK_ISR_SYSTEM_ERR)
   
   #define RTK_INTRS_CPLUS \
           (RTK_ISR_RX_OK|RTK_ISR_RX_ERR|RTK_ISR_TX_ERR|                   \
           RTK_ISR_RX_OVERRUN|RTK_ISR_PKT_UNDERRUN|RTK_ISR_FIFO_OFLOW|     \
           RTK_ISR_PCS_TIMEOUT|RTK_ISR_SYSTEM_ERR|RTK_ISR_TIMEOUT_EXPIRED)
   
   
   /*
    * Media status register. (8139 only)
    */
   #define RTK_MEDIASTAT_RXPAUSE   0x01
   #define RTK_MEDIASTAT_TXPAUSE   0x02
   #define RTK_MEDIASTAT_LINK      0x04
   #define RTK_MEDIASTAT_SPEED10   0x08
   #define RTK_MEDIASTAT_RXFLOWCTL 0x40    /* duplex mode */
   #define RTK_MEDIASTAT_TXFLOWCTL 0x80    /* duplex mode */
   
   /*
    * Receive config register.
    */
   #define RTK_RXCFG_RX_ALLPHYS    0x00000001      /* accept all nodes */
   #define RTK_RXCFG_RX_INDIV      0x00000002      /* match filter */
   #define RTK_RXCFG_RX_MULTI      0x00000004      /* accept all multicast */
   #define RTK_RXCFG_RX_BROAD      0x00000008      /* accept all broadcast */
   #define RTK_RXCFG_RX_RUNT       0x00000010
   #define RTK_RXCFG_RX_ERRPKT     0x00000020
   #define RTK_RXCFG_WRAP          0x00000080
   #define RTK_RXCFG_MAXDMA        0x00000700
   #define RTK_RXCFG_BUFSZ         0x00001800
   #define RTK_RXCFG_FIFOTHRESH    0x0000E000
   #define RTK_RXCFG_EARLYTHRESH   0x07000000
   
   #define RTK_RXDMA_16BYTES       0x00000000
   #define RTK_RXDMA_32BYTES       0x00000100
   #define RTK_RXDMA_64BYTES       0x00000200
   #define RTK_RXDMA_128BYTES      0x00000300
   #define RTK_RXDMA_256BYTES      0x00000400
   #define RTK_RXDMA_512BYTES      0x00000500
   #define RTK_RXDMA_1024BYTES     0x00000600
   #define RTK_RXDMA_UNLIMITED     0x00000700
   
   #define RTK_RXBUF_8             0x00000000
   #define RTK_RXBUF_16            0x00000800
   #define RTK_RXBUF_32            0x00001000
   #define RTK_RXBUF_64            0x00001800
   #define RTK_RXBUF_LEN(x)        (1 << (((x) >> 11) + 13))
   
   #define RTK_RXFIFO_16BYTES      0x00000000
   #define RTK_RXFIFO_32BYTES      0x00002000
   #define RTK_RXFIFO_64BYTES      0x00004000
   #define RTK_RXFIFO_128BYTES     0x00006000
   #define RTK_RXFIFO_256BYTES     0x00008000
   #define RTK_RXFIFO_512BYTES     0x0000A000
   #define RTK_RXFIFO_1024BYTES    0x0000C000
   #define RTK_RXFIFO_NOTHRESH     0x0000E000
   
   /*
    * Bits in RX status header (included with RX'ed packet
    * in ring buffer).
    */
   #define RTK_RXSTAT_RXOK         0x00000001
   #define RTK_RXSTAT_ALIGNERR     0x00000002
   #define RTK_RXSTAT_CRCERR       0x00000004
   #define RTK_RXSTAT_GIANT        0x00000008
   #define RTK_RXSTAT_RUNT         0x00000010
   #define RTK_RXSTAT_BADSYM       0x00000020
   #define RTK_RXSTAT_BROAD        0x00002000
   #define RTK_RXSTAT_INDIV        0x00004000
   #define RTK_RXSTAT_MULTI        0x00008000
   #define RTK_RXSTAT_LENMASK      0xFFFF0000
   
   #define RTK_RXSTAT_UNFINISHED   0xFFF0          /* DMA still in progress */
   /*
    * Command register.
    */
   #define RTK_CMD_EMPTY_RXBUF     0x0001
   #define RTK_CMD_TX_ENB          0x0004
   #define RTK_CMD_RX_ENB          0x0008
   #define RTK_CMD_RESET           0x0010
   #define RTK_CMD_STOPREQ         0x0080
   
   /*
    * EEPROM control register
    */
   #define RTK_EE_DATAOUT          0x01    /* Data out */
   #define RTK_EE_DATAIN           0x02    /* Data in */
   #define RTK_EE_CLK              0x04    /* clock */
   #define RTK_EE_SEL              0x08    /* chip select */
   #define RTK_EE_MODE             (0x40|0x80)
   
   #define RTK_EEMODE_OFF          0x00
   #define RTK_EEMODE_AUTOLOAD     0x40
   #define RTK_EEMODE_PROGRAM      0x80
   #define RTK_EEMODE_WRITECFG     (0x80|0x40)
   
   /* 9346/9356 EEPROM commands */
   #define RTK_EEADDR_LEN0         6       /* 9346 */
   #define RTK_EEADDR_LEN1         8       /* 9356 */
   #define RTK_EECMD_LEN           4
   
   #define RTK_EECMD_WRITE         0x5     /* 0101b */
   #define RTK_EECMD_READ          0x6     /* 0110b */
   #define RTK_EECMD_ERASE         0x7     /* 0111b */
   
   #define RTK_EE_ID               0x00
   #define RTK_EE_PCI_VID          0x01
   #define RTK_EE_PCI_DID          0x02
   /* Location of station address inside EEPROM */
   #define RTK_EE_EADDR0           0x07
   #define RTK_EE_EADDR1           0x08
   #define RTK_EE_EADDR2           0x09
   
   /*
    * MII register (8129 only)
    */
   #define RTK_MII_CLK             0x01
   #define RTK_MII_DATAIN          0x02
   #define RTK_MII_DATAOUT         0x04
   #define RTK_MII_DIR             0x80    /* 0 == input, 1 == output */
   
   /*
    * Config 0 register
    */
   #define RTK_CFG0_ROM0           0x01
   #define RTK_CFG0_ROM1           0x02
   #define RTK_CFG0_ROM2           0x04
   #define RTK_CFG0_PL0            0x08
   #define RTK_CFG0_PL1            0x10
   #define RTK_CFG0_10MBPS         0x20    /* 10 Mbps internal mode */
   #define RTK_CFG0_PCS            0x40
   #define RTK_CFG0_SCR            0x80
   
   /*
    * Config 1 register
    */
   #define RTK_CFG1_PWRDWN         0x01
   #define RTK_CFG1_SLEEP          0x02
   #define RTK_CFG1_IOMAP          0x04
   #define RTK_CFG1_MEMMAP         0x08
   #define RTK_CFG1_RSVD           0x10
   #define RTK_CFG1_DRVLOAD        0x20
   #define RTK_CFG1_LED0           0x40
   #define RTK_CFG1_FULLDUPLEX     0x40    /* 8129 only */
   #define RTK_CFG1_LED1           0x80
   
   /*
    * 8139C+ register definitions
    */
   
   /* RTK_DUMPSTATS_LO register */
   
   #define RTK_DUMPSTATS_START     0x00000008
   
   /* Transmit start register */
   
   #define RTK_TXSTART_SWI         0x01    /* generate TX interrupt */
   #define RTK_TXSTART_START       0x40    /* start normal queue transmit */
   #define RTK_TXSTART_HPRIO_START 0x80    /* start hi prio queue transmit */
   
   /*
    * Config 2 register, 8139C+/8169/8169S/8110S only
    */
   #define RTK_CFG2_BUSFREQ                0x07
   #define RTK_CFG2_BUSWIDTH       0x08
   #define RTK_CFG2_AUXPWRSTS      0x10
   
   #define RTK_BUSFREQ_33MHZ       0x00
   #define RTK_BUSFREQ_66MHZ       0x01
   
   #define RTK_BUSWIDTH_32BITS     0x00
   #define RTK_BUSWIDTH_64BITS     0x08
   
   /* C+ mode command register */
   
   #define RE_CPLUSCMD_TXENB       0x0001  /* enable C+ transmit mode */
   #define RE_CPLUSCMD_RXENB       0x0002  /* enable C+ receive mode */
   #define RE_CPLUSCMD_PCI_MRW     0x0008  /* enable PCI multi-read/write */
   #define RE_CPLUSCMD_PCI_DAC     0x0010  /* PCI dual-address cycle only */
   #define RE_CPLUSCMD_RXCSUM_ENB  0x0020  /* enable RX checksum offload */
   #define RE_CPLUSCMD_VLANSTRIP   0x0040  /* enable VLAN tag stripping */
   #define RE_CPLUSCMD_MACSTAT_DIS 0x0080  /* 8168B/C/CP */
   #define RE_CPLUSCMD_ASF         0x0100  /* 8168C/CP */
   #define RE_CPLUSCMD_DBG_SEL     0x0200  /* 8168C/CP */
   #define RE_CPLUSCMD_FORCE_TXFC  0x0400  /* 8168C/CP */
   #define RE_CPLUSCMD_FORCE_RXFC  0x0800  /* 8168C/CP */
   #define RE_CPLUSCMD_FORCE_HDPX  0x1000  /* 8168C/CP */
   #define RE_CPLUSCMD_NORMAL_MODE 0x2000  /* 8168C/CP */
   #define RE_CPLUSCMD_DBG_ENB     0x4000  /* 8168C/CP */
   #define RE_CPLUSCMD_BIST_ENB    0x8000  /* 8168C/CP */
   
   /* C+ early transmit threshold */
   
   #define RTK_EARLYTXTHRESH_CNT   0x003F  /* byte count times 8 */
   
   /*
    * Gigabit PHY access register (8169 only)
    */
   
   #define RTK_PHYAR_PHYDATA       0x0000FFFF
   #define RTK_PHYAR_PHYREG                0x001F0000
   #define RTK_PHYAR_BUSY          0x80000000
   
   /*
    * Gigabit media status (8169 only)
    */
   #define RTK_GMEDIASTAT_FDX      0x01    /* full duplex */
   #define RTK_GMEDIASTAT_LINK     0x02    /* link up */
   #define RTK_GMEDIASTAT_10MBPS   0x04    /* 10mps link */
   #define RTK_GMEDIASTAT_100MBPS  0x08    /* 100mbps link */
   #define RTK_GMEDIASTAT_1000MBPS 0x10    /* gigE link */
   #define RTK_GMEDIASTAT_RXFLOW   0x20    /* RX flow control on */
   #define RTK_GMEDIASTAT_TXFLOW   0x40    /* TX flow control on */
   #define RTK_GMEDIASTAT_TBI      0x80    /* TBI enabled */
   
   
   #define RTK_TX_EARLYTHRESH      ((256 / 32) << 16)
   #define RTK_RX_FIFOTHRESH       RTK_RXFIFO_256BYTES
   #define RTK_RX_MAXDMA           RTK_RXDMA_256BYTES
   #define RTK_TX_MAXDMA           RTK_TXDMA_256BYTES
   
   #define RTK_RXCFG_CONFIG        (RTK_RX_FIFOTHRESH|RTK_RX_MAXDMA|RTK_RX_BUF_SZ)
   #define RTK_TXCFG_CONFIG        (RTK_TXCFG_IFG|RTK_TX_MAXDMA)
   
   #define RE_RX_FIFOTHRESH        RTK_RXFIFO_NOTHRESH
   #define RE_RX_MAXDMA            RTK_RXDMA_UNLIMITED
   #define RE_TX_MAXDMA            RTK_TXDMA_2048BYTES
   
   #define RE_RXCFG_CONFIG         (RE_RX_FIFOTHRESH|RE_RX_MAXDMA|RTK_RX_BUF_SZ)
   #define RE_TXCFG_CONFIG         (RTK_TXCFG_IFG|RE_TX_MAXDMA)
   
   /*
    * RX/TX descriptor definition. When large send mode is enabled, the
    * lower 11 bits of the TX rtk_cmd word are used to hold the MSS, and
    * the checksum offload bits are disabled. The structure layout is
    * the same for RX and TX descriptors
    */
   
   struct re_desc {
           volatile uint32_t       re_cmdstat;
           volatile uint32_t       re_vlanctl;
           volatile uint32_t       re_bufaddr_lo;
           volatile uint32_t       re_bufaddr_hi;
   };
   
   #define RE_TDESC_CMD_FRAGLEN    0x0000FFFF
   #define RE_TDESC_CMD_TCPCSUM    0x00010000      /* TCP checksum enable */
   #define RE_TDESC_CMD_UDPCSUM    0x00020000      /* UDP checksum enable */
   #define RE_TDESC_CMD_IPCSUM     0x00040000      /* IP header checksum enable */
   #define RE_TDESC_CMD_MSSVAL     0x07FF0000      /* Large send MSS value */
   #define RE_TDESC_CMD_MSSVAL_SHIFT 16            /* Shift of the above */
   #define RE_TDESC_CMD_LGSEND     0x08000000      /* TCP large send enb */
   #define RE_TDESC_CMD_EOF        0x10000000      /* end of frame marker */
   #define RE_TDESC_CMD_SOF        0x20000000      /* start of frame marker */
   #define RE_TDESC_CMD_EOR        0x40000000      /* end of ring marker */
   #define RE_TDESC_CMD_OWN        0x80000000      /* chip owns descriptor */
   
   #define RE_TDESC_VLANCTL_TAG    0x00020000      /* Insert VLAN tag */
   #define RE_TDESC_VLANCTL_DATA   0x0000FFFF      /* TAG data */
   #define RE_TDESC_VLANCTL_UDPCSUM 0x80000000     /* DESCV2 UDP cksum enable */
   #define RE_TDESC_VLANCTL_TCPCSUM 0x40000000     /* DESCV2 TCP cksum enable */
   #define RE_TDESC_VLANCTL_IPCSUM 0x20000000      /* DESCV2 IP hdr cksum enable */
   
   /*
    * Error bits are valid only on the last descriptor of a frame
    * (i.e. RE_TDESC_CMD_EOF == 1)
    */
   
   #define RE_TDESC_STAT_COLCNT    0x000F0000      /* collision count */
   #define RE_TDESC_STAT_EXCESSCOL 0x00100000      /* excessive collisions */
   #define RE_TDESC_STAT_LINKFAIL  0x00200000      /* link faulure */
   #define RE_TDESC_STAT_OWINCOL   0x00400000      /* out-of-window collision */
   #define RE_TDESC_STAT_TXERRSUM  0x00800000      /* transmit error summary */
   #define RE_TDESC_STAT_UNDERRUN  0x02000000      /* TX underrun occurred */
   #define RE_TDESC_STAT_OWN       0x80000000
   
   /*
    * RX descriptor cmd/vlan definitions
    */
   
   #define RE_RDESC_CMD_EOR        0x40000000
   #define RE_RDESC_CMD_OWN        0x80000000
   #define RE_RDESC_CMD_BUFLEN     0x00001FFF
   
   #define RE_RDESC_STAT_OWN       0x80000000
   #define RE_RDESC_STAT_EOR       0x40000000
   #define RE_RDESC_STAT_SOF       0x20000000
   #define RE_RDESC_STAT_EOF       0x10000000
   #define RE_RDESC_STAT_FRALIGN   0x08000000      /* frame alignment error */
   #define RE_RDESC_STAT_MCAST     0x04000000      /* multicast pkt received */
   #define RE_RDESC_STAT_UCAST     0x02000000      /* unicast pkt received */
   #define RE_RDESC_STAT_BCAST     0x01000000      /* broadcast pkt received */
   #define RE_RDESC_STAT_BUFOFLOW  0x00800000      /* out of buffer space */
   #define RE_RDESC_STAT_FIFOOFLOW 0x00400000      /* FIFO overrun */
   #define RE_RDESC_STAT_GIANT     0x00200000      /* pkt > 4096 bytes */
   #define RE_RDESC_STAT_RXERRSUM  0x00100000      /* RX error summary */
   #define RE_RDESC_STAT_RUNT      0x00080000      /* runt packet received */
   #define RE_RDESC_STAT_CRCERR    0x00040000      /* CRC error */
   #define RE_RDESC_STAT_PROTOID   0x00030000      /* Protocol type */
   #define RE_RDESC_STAT_IPSUMBAD  0x00008000      /* IP header checksum bad */
   #define RE_RDESC_STAT_UDPSUMBAD 0x00004000      /* UDP checksum bad */
   #define RE_RDESC_STAT_TCPSUMBAD 0x00002000      /* TCP checksum bad */
   #define RE_RDESC_STAT_FRAGLEN   0x00001FFF      /* RX'ed frame/frag len */
   #define RE_RDESC_STAT_GFRAGLEN  0x00003FFF      /* RX'ed frame/frag len */
   
   #define RE_RDESC_VLANCTL_TAG    0x00010000      /* VLAN tag available
                                                      (re_vlandata valid)*/
   #define RE_RDESC_VLANCTL_DATA   0x0000FFFF      /* TAG data */
   #define RE_RDESC_VLANCTL_IPV6   0x80000000      /* DESCV2 IPV6 packet */
   #define RE_RDESC_VLANCTL_IPV4   0x40000000      /* DESCV2 IPV4 packet */
   
   #define RE_PROTOID_NONIP        0x00000000
   #define RE_PROTOID_TCPIP        0x00010000
   #define RE_PROTOID_UDPIP        0x00020000
   #define RE_PROTOID_IP           0x00030000
   #define RE_TCPPKT(x)            (((x) & RE_RDESC_STAT_PROTOID) == \
                                    RE_PROTOID_TCPIP)
   #define RE_UDPPKT(x)            (((x) & RE_RDESC_STAT_PROTOID) == \
                                    RE_PROTOID_UDPIP)
   
   #define RE_ADDR_LO(y)           ((uint64_t)(y) & 0xFFFFFFFF)
   #define RE_ADDR_HI(y)           ((uint64_t)(y) >> 32)
   
   /*
    * Statistics counter structure (8139C+ and 8169 only)
    */
   struct re_stats {
           uint32_t                re_tx_pkts_lo;
           uint32_t                re_tx_pkts_hi;
           uint32_t                re_tx_errs_lo;
           uint32_t                re_tx_errs_hi;
           uint32_t                re_tx_errs;
           uint16_t                re_missed_pkts;
           uint16_t                re_rx_framealign_errs;
           uint32_t                re_tx_onecoll;
           uint32_t                re_tx_multicolls;
           uint32_t                re_rx_ucasts_hi;
           uint32_t                re_rx_ucasts_lo;
           uint32_t                re_rx_bcasts_lo;
           uint32_t                re_rx_bcasts_hi;
           uint32_t                re_rx_mcasts;
           uint16_t                re_tx_aborts;
           uint16_t                re_rx_underruns;
   };
   
   #define RE_IFQ_MAXLEN           512
   
   #define RE_JUMBO_FRAMELEN       ETHER_MAX_LEN_JUMBO
   #define RE_JUMBO_MTU            ETHERMTU_JUMBO

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