FreeBSD/Linux Kernel Cross Reference
sys/dev/em/e1000_defines.h

     /*******************************************************************************
     
       Copyright (c) 2001-2007, Intel Corporation 
       All rights reserved.
       
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    *******************************************************************************/
    /* $FreeBSD$ */
    
    
    #ifndef _E1000_DEFINES_H_
    #define _E1000_DEFINES_H_
    
    /* Number of Transmit and Receive Descriptors must be a multiple of 8 */
    #define REQ_TX_DESCRIPTOR_MULTIPLE  8
    #define REQ_RX_DESCRIPTOR_MULTIPLE  8
    
    /* Definitions for power management and wakeup registers */
    /* Wake Up Control */
    #define E1000_WUC_APME       0x00000001 /* APM Enable */
    #define E1000_WUC_PME_EN     0x00000002 /* PME Enable */
    #define E1000_WUC_PME_STATUS 0x00000004 /* PME Status */
    #define E1000_WUC_APMPME     0x00000008 /* Assert PME on APM Wakeup */
    #define E1000_WUC_SPM        0x80000000 /* Enable SPM */
    
    /* Wake Up Filter Control */
    #define E1000_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
    #define E1000_WUFC_MAG  0x00000002 /* Magic Packet Wakeup Enable */
    #define E1000_WUFC_EX   0x00000004 /* Directed Exact Wakeup Enable */
    #define E1000_WUFC_MC   0x00000008 /* Directed Multicast Wakeup Enable */
    #define E1000_WUFC_BC   0x00000010 /* Broadcast Wakeup Enable */
    #define E1000_WUFC_ARP  0x00000020 /* ARP Request Packet Wakeup Enable */
    #define E1000_WUFC_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Enable */
    #define E1000_WUFC_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Enable */
    #define E1000_WUFC_IGNORE_TCO      0x00008000 /* Ignore WakeOn TCO packets */
    #define E1000_WUFC_FLX0 0x00010000 /* Flexible Filter 0 Enable */
    #define E1000_WUFC_FLX1 0x00020000 /* Flexible Filter 1 Enable */
    #define E1000_WUFC_FLX2 0x00040000 /* Flexible Filter 2 Enable */
    #define E1000_WUFC_FLX3 0x00080000 /* Flexible Filter 3 Enable */
    #define E1000_WUFC_ALL_FILTERS 0x000F00FF /* Mask for all wakeup filters */
    #define E1000_WUFC_FLX_OFFSET 16       /* Offset to the Flexible Filters bits */
    #define E1000_WUFC_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */
    
    /* Wake Up Status */
    #define E1000_WUS_LNKC         E1000_WUFC_LNKC
    #define E1000_WUS_MAG          E1000_WUFC_MAG
    #define E1000_WUS_EX           E1000_WUFC_EX
    #define E1000_WUS_MC           E1000_WUFC_MC
    #define E1000_WUS_BC           E1000_WUFC_BC
    #define E1000_WUS_ARP          E1000_WUFC_ARP
    #define E1000_WUS_IPV4         E1000_WUFC_IPV4
    #define E1000_WUS_IPV6         E1000_WUFC_IPV6
    #define E1000_WUS_FLX0         E1000_WUFC_FLX0
    #define E1000_WUS_FLX1         E1000_WUFC_FLX1
    #define E1000_WUS_FLX2         E1000_WUFC_FLX2
    #define E1000_WUS_FLX3         E1000_WUFC_FLX3
    #define E1000_WUS_FLX_FILTERS  E1000_WUFC_FLX_FILTERS
    
    /* Wake Up Packet Length */
    #define E1000_WUPL_LENGTH_MASK 0x0FFF   /* Only the lower 12 bits are valid */
    
    /* Four Flexible Filters are supported */
    #define E1000_FLEXIBLE_FILTER_COUNT_MAX 4
    
    /* Each Flexible Filter is at most 128 (0x80) bytes in length */
    #define E1000_FLEXIBLE_FILTER_SIZE_MAX  128
    
    #define E1000_FFLT_SIZE E1000_FLEXIBLE_FILTER_COUNT_MAX
    #define E1000_FFMT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX
    #define E1000_FFVT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX
    
    /* Extended Device Control */
    #define E1000_CTRL_EXT_GPI0_EN   0x00000001 /* Maps SDP4 to GPI0 */
    #define E1000_CTRL_EXT_GPI1_EN   0x00000002 /* Maps SDP5 to GPI1 */
   #define E1000_CTRL_EXT_PHYINT_EN E1000_CTRL_EXT_GPI1_EN
   #define E1000_CTRL_EXT_GPI2_EN   0x00000004 /* Maps SDP6 to GPI2 */
   #define E1000_CTRL_EXT_GPI3_EN   0x00000008 /* Maps SDP7 to GPI3 */
   #define E1000_CTRL_EXT_SDP4_DATA 0x00000010 /* Value of SW Defineable Pin 4 */
   #define E1000_CTRL_EXT_SDP5_DATA 0x00000020 /* Value of SW Defineable Pin 5 */
   #define E1000_CTRL_EXT_PHY_INT   E1000_CTRL_EXT_SDP5_DATA
   #define E1000_CTRL_EXT_SDP6_DATA 0x00000040 /* Value of SW Defineable Pin 6 */
   #define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */
   #define E1000_CTRL_EXT_SDP4_DIR  0x00000100 /* Direction of SDP4 0=in 1=out */
   #define E1000_CTRL_EXT_SDP5_DIR  0x00000200 /* Direction of SDP5 0=in 1=out */
   #define E1000_CTRL_EXT_SDP6_DIR  0x00000400 /* Direction of SDP6 0=in 1=out */
   #define E1000_CTRL_EXT_SDP7_DIR  0x00000800 /* Direction of SDP7 0=in 1=out */
   #define E1000_CTRL_EXT_ASDCHK    0x00001000 /* Initiate an ASD sequence */
   #define E1000_CTRL_EXT_EE_RST    0x00002000 /* Reinitialize from EEPROM */
   #define E1000_CTRL_EXT_IPS       0x00004000 /* Invert Power State */
   #define E1000_CTRL_EXT_SPD_BYPS  0x00008000 /* Speed Select Bypass */
   #define E1000_CTRL_EXT_RO_DIS    0x00020000 /* Relaxed Ordering disable */
   #define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
   #define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000
   #define E1000_CTRL_EXT_LINK_MODE_TBI  0x00C00000
   #define E1000_CTRL_EXT_LINK_MODE_KMRN    0x00000000
   #define E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES  0x00C00000
   #define E1000_CTRL_EXT_LINK_MODE_PCIX_SERDES  0x00800000
   #define E1000_CTRL_EXT_LINK_MODE_SGMII   0x00800000
   #define E1000_CTRL_EXT_EIAME          0x01000000
   #define E1000_CTRL_EXT_IRCA           0x00000001
   #define E1000_CTRL_EXT_WR_WMARK_MASK  0x03000000
   #define E1000_CTRL_EXT_WR_WMARK_256   0x00000000
   #define E1000_CTRL_EXT_WR_WMARK_320   0x01000000
   #define E1000_CTRL_EXT_WR_WMARK_384   0x02000000
   #define E1000_CTRL_EXT_WR_WMARK_448   0x03000000
   #define E1000_CTRL_EXT_CANC           0x04000000 /* Interrupt delay cancellation */
   #define E1000_CTRL_EXT_DRV_LOAD       0x10000000 /* Driver loaded bit for FW */
   #define E1000_CTRL_EXT_IAME           0x08000000 /* Interrupt acknowledge Auto-mask */
   #define E1000_CTRL_EXT_INT_TIMER_CLR  0x20000000 /* Clear Interrupt timers after IMS clear */
   #define E1000_CRTL_EXT_PB_PAREN       0x01000000 /* packet buffer parity error detection enabled */
   #define E1000_CTRL_EXT_DF_PAREN       0x02000000 /* descriptor FIFO parity error detection enable */
   #define E1000_CTRL_EXT_GHOST_PAREN    0x40000000
   #define E1000_CTRL_EXT_PBA_CLR        0x80000000 /* PBA Clear */
   #define E1000_I2CCMD_REG_ADDR_SHIFT   16
   #define E1000_I2CCMD_REG_ADDR         0x00FF0000
   #define E1000_I2CCMD_PHY_ADDR_SHIFT   24
   #define E1000_I2CCMD_PHY_ADDR         0x07000000
   #define E1000_I2CCMD_OPCODE_READ      0x08000000
   #define E1000_I2CCMD_OPCODE_WRITE     0x00000000
   #define E1000_I2CCMD_RESET            0x10000000
   #define E1000_I2CCMD_READY            0x20000000
   #define E1000_I2CCMD_INTERRUPT_ENA    0x40000000
   #define E1000_I2CCMD_ERROR            0x80000000
   #define E1000_MAX_SGMII_PHY_REG_ADDR  255
   #define E1000_I2CCMD_PHY_TIMEOUT      200
   
   /* Receive Decriptor bit definitions */
   #define E1000_RXD_STAT_DD       0x01    /* Descriptor Done */
   #define E1000_RXD_STAT_EOP      0x02    /* End of Packet */
   #define E1000_RXD_STAT_IXSM     0x04    /* Ignore checksum */
   #define E1000_RXD_STAT_VP       0x08    /* IEEE VLAN Packet */
   #define E1000_RXD_STAT_UDPCS    0x10    /* UDP xsum caculated */
   #define E1000_RXD_STAT_TCPCS    0x20    /* TCP xsum calculated */
   #define E1000_RXD_STAT_IPCS     0x40    /* IP xsum calculated */
   #define E1000_RXD_STAT_PIF      0x80    /* passed in-exact filter */
   #define E1000_RXD_STAT_CRCV     0x100   /* Speculative CRC Valid */
   #define E1000_RXD_STAT_IPIDV    0x200   /* IP identification valid */
   #define E1000_RXD_STAT_UDPV     0x400   /* Valid UDP checksum */
   #define E1000_RXD_STAT_DYNINT   0x800   /* Pkt caused INT via DYNINT */
   #define E1000_RXD_STAT_ACK      0x8000  /* ACK Packet indication */
   #define E1000_RXD_ERR_CE        0x01    /* CRC Error */
   #define E1000_RXD_ERR_SE        0x02    /* Symbol Error */
   #define E1000_RXD_ERR_SEQ       0x04    /* Sequence Error */
   #define E1000_RXD_ERR_CXE       0x10    /* Carrier Extension Error */
   #define E1000_RXD_ERR_TCPE      0x20    /* TCP/UDP Checksum Error */
   #define E1000_RXD_ERR_IPE       0x40    /* IP Checksum Error */
   #define E1000_RXD_ERR_RXE       0x80    /* Rx Data Error */
   #define E1000_RXD_SPC_VLAN_MASK 0x0FFF  /* VLAN ID is in lower 12 bits */
   #define E1000_RXD_SPC_PRI_MASK  0xE000  /* Priority is in upper 3 bits */
   #define E1000_RXD_SPC_PRI_SHIFT 13
   #define E1000_RXD_SPC_CFI_MASK  0x1000  /* CFI is bit 12 */
   #define E1000_RXD_SPC_CFI_SHIFT 12
   
   #define E1000_RXDEXT_STATERR_CE    0x01000000
   #define E1000_RXDEXT_STATERR_SE    0x02000000
   #define E1000_RXDEXT_STATERR_SEQ   0x04000000
   #define E1000_RXDEXT_STATERR_CXE   0x10000000
   #define E1000_RXDEXT_STATERR_TCPE  0x20000000
   #define E1000_RXDEXT_STATERR_IPE   0x40000000
   #define E1000_RXDEXT_STATERR_RXE   0x80000000
   
   /* mask to determine if packets should be dropped due to frame errors */
   #define E1000_RXD_ERR_FRAME_ERR_MASK ( \
       E1000_RXD_ERR_CE  |                \
       E1000_RXD_ERR_SE  |                \
       E1000_RXD_ERR_SEQ |                \
       E1000_RXD_ERR_CXE |                \
       E1000_RXD_ERR_RXE)
   
   /* Same mask, but for extended and packet split descriptors */
   #define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \
       E1000_RXDEXT_STATERR_CE  |            \
       E1000_RXDEXT_STATERR_SE  |            \
       E1000_RXDEXT_STATERR_SEQ |            \
       E1000_RXDEXT_STATERR_CXE |            \
       E1000_RXDEXT_STATERR_RXE)
   
   #define E1000_MRQC_ENABLE_MASK                 0x00000007
   #define E1000_MRQC_ENABLE_RSS_2Q               0x00000001
   #define E1000_MRQC_ENABLE_RSS_INT              0x00000004
   #define E1000_MRQC_RSS_FIELD_MASK              0xFFFF0000
   #define E1000_MRQC_RSS_FIELD_IPV4_TCP          0x00010000
   #define E1000_MRQC_RSS_FIELD_IPV4              0x00020000
   #define E1000_MRQC_RSS_FIELD_IPV6_TCP_EX       0x00040000
   #define E1000_MRQC_RSS_FIELD_IPV6_EX           0x00080000
   #define E1000_MRQC_RSS_FIELD_IPV6              0x00100000
   #define E1000_MRQC_RSS_FIELD_IPV6_TCP          0x00200000
   
   #define E1000_RXDPS_HDRSTAT_HDRSP              0x00008000
   #define E1000_RXDPS_HDRSTAT_HDRLEN_MASK        0x000003FF
   
   /* Management Control */
   #define E1000_MANC_SMBUS_EN      0x00000001 /* SMBus Enabled - RO */
   #define E1000_MANC_ASF_EN        0x00000002 /* ASF Enabled - RO */
   #define E1000_MANC_R_ON_FORCE    0x00000004 /* Reset on Force TCO - RO */
   #define E1000_MANC_RMCP_EN       0x00000100 /* Enable RCMP 026Fh Filtering */
   #define E1000_MANC_0298_EN       0x00000200 /* Enable RCMP 0298h Filtering */
   #define E1000_MANC_IPV4_EN       0x00000400 /* Enable IPv4 */
   #define E1000_MANC_IPV6_EN       0x00000800 /* Enable IPv6 */
   #define E1000_MANC_SNAP_EN       0x00001000 /* Accept LLC/SNAP */
   #define E1000_MANC_ARP_EN        0x00002000 /* Enable ARP Request Filtering */
   /* Enable Neighbor Discovery Filtering */
   #define E1000_MANC_NEIGHBOR_EN   0x00004000
   #define E1000_MANC_ARP_RES_EN    0x00008000 /* Enable ARP response Filtering */
   #define E1000_MANC_TCO_RESET     0x00010000 /* TCO Reset Occurred */
   #define E1000_MANC_RCV_TCO_EN    0x00020000 /* Receive TCO Packets Enabled */
   #define E1000_MANC_REPORT_STATUS 0x00040000 /* Status Reporting Enabled */
   #define E1000_MANC_RCV_ALL       0x00080000 /* Receive All Enabled */
   #define E1000_MANC_BLK_PHY_RST_ON_IDE   0x00040000 /* Block phy resets */
   /* Enable MAC address filtering */
   #define E1000_MANC_EN_MAC_ADDR_FILTER   0x00100000
   /* Enable MNG packets to host memory */
   #define E1000_MANC_EN_MNG2HOST   0x00200000
   /* Enable IP address filtering */
   #define E1000_MANC_EN_IP_ADDR_FILTER    0x00400000
   #define E1000_MANC_EN_XSUM_FILTER   0x00800000 /* Enable checksum filtering */
   #define E1000_MANC_BR_EN            0x01000000 /* Enable broadcast filtering */
   #define E1000_MANC_SMB_REQ       0x01000000 /* SMBus Request */
   #define E1000_MANC_SMB_GNT       0x02000000 /* SMBus Grant */
   #define E1000_MANC_SMB_CLK_IN    0x04000000 /* SMBus Clock In */
   #define E1000_MANC_SMB_DATA_IN   0x08000000 /* SMBus Data In */
   #define E1000_MANC_SMB_DATA_OUT  0x10000000 /* SMBus Data Out */
   #define E1000_MANC_SMB_CLK_OUT   0x20000000 /* SMBus Clock Out */
   
   #define E1000_MANC_SMB_DATA_OUT_SHIFT  28 /* SMBus Data Out Shift */
   #define E1000_MANC_SMB_CLK_OUT_SHIFT   29 /* SMBus Clock Out Shift */
   
   /* Receive Control */
   #define E1000_RCTL_RST            0x00000001    /* Software reset */
   #define E1000_RCTL_EN             0x00000002    /* enable */
   #define E1000_RCTL_SBP            0x00000004    /* store bad packet */
   #define E1000_RCTL_UPE            0x00000008    /* unicast promiscuous enable */
   #define E1000_RCTL_MPE            0x00000010    /* multicast promiscuous enab */
   #define E1000_RCTL_LPE            0x00000020    /* long packet enable */
   #define E1000_RCTL_LBM_NO         0x00000000    /* no loopback mode */
   #define E1000_RCTL_LBM_MAC        0x00000040    /* MAC loopback mode */
   #define E1000_RCTL_LBM_SLP        0x00000080    /* serial link loopback mode */
   #define E1000_RCTL_LBM_TCVR       0x000000C0    /* tcvr loopback mode */
   #define E1000_RCTL_DTYP_MASK      0x00000C00    /* Descriptor type mask */
   #define E1000_RCTL_DTYP_PS        0x00000400    /* Packet Split descriptor */
   #define E1000_RCTL_RDMTS_HALF     0x00000000    /* rx desc min threshold size */
   #define E1000_RCTL_RDMTS_QUAT     0x00000100    /* rx desc min threshold size */
   #define E1000_RCTL_RDMTS_EIGTH    0x00000200    /* rx desc min threshold size */
   #define E1000_RCTL_MO_SHIFT       12            /* multicast offset shift */
   #define E1000_RCTL_MO_0           0x00000000    /* multicast offset 11:0 */
   #define E1000_RCTL_MO_1           0x00001000    /* multicast offset 12:1 */
   #define E1000_RCTL_MO_2           0x00002000    /* multicast offset 13:2 */
   #define E1000_RCTL_MO_3           0x00003000    /* multicast offset 15:4 */
   #define E1000_RCTL_MDR            0x00004000    /* multicast desc ring 0 */
   #define E1000_RCTL_BAM            0x00008000    /* broadcast enable */
   /* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */
   #define E1000_RCTL_SZ_2048        0x00000000    /* rx buffer size 2048 */
   #define E1000_RCTL_SZ_1024        0x00010000    /* rx buffer size 1024 */
   #define E1000_RCTL_SZ_512         0x00020000    /* rx buffer size 512 */
   #define E1000_RCTL_SZ_256         0x00030000    /* rx buffer size 256 */
   /* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */
   #define E1000_RCTL_SZ_16384       0x00010000    /* rx buffer size 16384 */
   #define E1000_RCTL_SZ_8192        0x00020000    /* rx buffer size 8192 */
   #define E1000_RCTL_SZ_4096        0x00030000    /* rx buffer size 4096 */
   #define E1000_RCTL_VFE            0x00040000    /* vlan filter enable */
   #define E1000_RCTL_CFIEN          0x00080000    /* canonical form enable */
   #define E1000_RCTL_CFI            0x00100000    /* canonical form indicator */
   #define E1000_RCTL_DPF            0x00400000    /* discard pause frames */
   #define E1000_RCTL_PMCF           0x00800000    /* pass MAC control frames */
   #define E1000_RCTL_BSEX           0x02000000    /* Buffer size extension */
   #define E1000_RCTL_SECRC          0x04000000    /* Strip Ethernet CRC */
   #define E1000_RCTL_FLXBUF_MASK    0x78000000    /* Flexible buffer size */
   #define E1000_RCTL_FLXBUF_SHIFT   27            /* Flexible buffer shift */
   
   /*
    * Use byte values for the following shift parameters
    * Usage:
    *     psrctl |= (((ROUNDUP(value0, 128) >> E1000_PSRCTL_BSIZE0_SHIFT) &
    *                  E1000_PSRCTL_BSIZE0_MASK) |
    *                ((ROUNDUP(value1, 1024) >> E1000_PSRCTL_BSIZE1_SHIFT) &
    *                  E1000_PSRCTL_BSIZE1_MASK) |
    *                ((ROUNDUP(value2, 1024) << E1000_PSRCTL_BSIZE2_SHIFT) &
    *                  E1000_PSRCTL_BSIZE2_MASK) |
    *                ((ROUNDUP(value3, 1024) << E1000_PSRCTL_BSIZE3_SHIFT) |;
    *                  E1000_PSRCTL_BSIZE3_MASK))
    * where value0 = [128..16256],  default=256
    *       value1 = [1024..64512], default=4096
    *       value2 = [0..64512],    default=4096
    *       value3 = [0..64512],    default=0
    */
   
   #define E1000_PSRCTL_BSIZE0_MASK   0x0000007F
   #define E1000_PSRCTL_BSIZE1_MASK   0x00003F00
   #define E1000_PSRCTL_BSIZE2_MASK   0x003F0000
   #define E1000_PSRCTL_BSIZE3_MASK   0x3F000000
   
   #define E1000_PSRCTL_BSIZE0_SHIFT  7            /* Shift _right_ 7 */
   #define E1000_PSRCTL_BSIZE1_SHIFT  2            /* Shift _right_ 2 */
   #define E1000_PSRCTL_BSIZE2_SHIFT  6            /* Shift _left_ 6 */
   #define E1000_PSRCTL_BSIZE3_SHIFT 14            /* Shift _left_ 14 */
   
   /* SWFW_SYNC Definitions */
   #define E1000_SWFW_EEP_SM   0x1
   #define E1000_SWFW_PHY0_SM  0x2
   #define E1000_SWFW_PHY1_SM  0x4
   
   /* FACTPS Definitions */
   #define E1000_FACTPS_LFS    0x40000000  /* LAN Function Select */
   /* Device Control */
   #define E1000_CTRL_FD       0x00000001  /* Full duplex.0=half; 1=full */
   #define E1000_CTRL_BEM      0x00000002  /* Endian Mode.0=little,1=big */
   #define E1000_CTRL_PRIOR    0x00000004  /* Priority on PCI. 0=rx,1=fair */
   #define E1000_CTRL_GIO_MASTER_DISABLE 0x00000004 /*Blocks new Master requests */
   #define E1000_CTRL_LRST     0x00000008  /* Link reset. 0=normal,1=reset */
   #define E1000_CTRL_TME      0x00000010  /* Test mode. 0=normal,1=test */
   #define E1000_CTRL_SLE      0x00000020  /* Serial Link on 0=dis,1=en */
   #define E1000_CTRL_ASDE     0x00000020  /* Auto-speed detect enable */
   #define E1000_CTRL_SLU      0x00000040  /* Set link up (Force Link) */
   #define E1000_CTRL_ILOS     0x00000080  /* Invert Loss-Of Signal */
   #define E1000_CTRL_SPD_SEL  0x00000300  /* Speed Select Mask */
   #define E1000_CTRL_SPD_10   0x00000000  /* Force 10Mb */
   #define E1000_CTRL_SPD_100  0x00000100  /* Force 100Mb */
   #define E1000_CTRL_SPD_1000 0x00000200  /* Force 1Gb */
   #define E1000_CTRL_BEM32    0x00000400  /* Big Endian 32 mode */
   #define E1000_CTRL_FRCSPD   0x00000800  /* Force Speed */
   #define E1000_CTRL_FRCDPX   0x00001000  /* Force Duplex */
   #define E1000_CTRL_D_UD_EN  0x00002000  /* Dock/Undock enable */
   #define E1000_CTRL_D_UD_POLARITY 0x00004000 /* Defined polarity of Dock/Undock indication in SDP[0] */
   #define E1000_CTRL_FORCE_PHY_RESET 0x00008000 /* Reset both PHY ports, through PHYRST_N pin */
   #define E1000_CTRL_EXT_LINK_EN 0x00010000 /* enable link status from external LINK_0 and LINK_1 pins */
   #define E1000_CTRL_SWDPIN0  0x00040000  /* SWDPIN 0 value */
   #define E1000_CTRL_SWDPIN1  0x00080000  /* SWDPIN 1 value */
   #define E1000_CTRL_SWDPIN2  0x00100000  /* SWDPIN 2 value */
   #define E1000_CTRL_SWDPIN3  0x00200000  /* SWDPIN 3 value */
   #define E1000_CTRL_SWDPIO0  0x00400000  /* SWDPIN 0 Input or output */
   #define E1000_CTRL_SWDPIO1  0x00800000  /* SWDPIN 1 input or output */
   #define E1000_CTRL_SWDPIO2  0x01000000  /* SWDPIN 2 input or output */
   #define E1000_CTRL_SWDPIO3  0x02000000  /* SWDPIN 3 input or output */
   #define E1000_CTRL_RST      0x04000000  /* Global reset */
   #define E1000_CTRL_RFCE     0x08000000  /* Receive Flow Control enable */
   #define E1000_CTRL_TFCE     0x10000000  /* Transmit flow control enable */
   #define E1000_CTRL_RTE      0x20000000  /* Routing tag enable */
   #define E1000_CTRL_VME      0x40000000  /* IEEE VLAN mode enable */
   #define E1000_CTRL_PHY_RST  0x80000000  /* PHY Reset */
   #define E1000_CTRL_SW2FW_INT 0x02000000  /* Initiate an interrupt to manageability engine */
   #define E1000_CTRL_I2C_ENA  0x02000000  /* I2C enable */
   
   /* Bit definitions for the Management Data IO (MDIO) and Management Data
    * Clock (MDC) pins in the Device Control Register.
    */
   #define E1000_CTRL_PHY_RESET_DIR  E1000_CTRL_SWDPIO0
   #define E1000_CTRL_PHY_RESET      E1000_CTRL_SWDPIN0
   #define E1000_CTRL_MDIO_DIR       E1000_CTRL_SWDPIO2
   #define E1000_CTRL_MDIO           E1000_CTRL_SWDPIN2
   #define E1000_CTRL_MDC_DIR        E1000_CTRL_SWDPIO3
   #define E1000_CTRL_MDC            E1000_CTRL_SWDPIN3
   #define E1000_CTRL_PHY_RESET_DIR4 E1000_CTRL_EXT_SDP4_DIR
   #define E1000_CTRL_PHY_RESET4     E1000_CTRL_EXT_SDP4_DATA
   
   #define E1000_CONNSW_ENRGSRC             0x4
   #define E1000_PCS_LCTL_FLV_LINK_UP       1
   #define E1000_PCS_LCTL_FSV_10            0
   #define E1000_PCS_LCTL_FSV_100           2
   #define E1000_PCS_LCTL_FSV_1000          4
   #define E1000_PCS_LCTL_FDV_FULL          8
   #define E1000_PCS_LCTL_FSD               0x10
   #define E1000_PCS_LCTL_FORCE_LINK        0x20
   #define E1000_PCS_LCTL_LOW_LINK_LATCH    0x40
   #define E1000_PCS_LCTL_AN_ENABLE         0x10000
   #define E1000_PCS_LCTL_AN_RESTART        0x20000
   #define E1000_PCS_LCTL_AN_TIMEOUT        0x40000
   #define E1000_PCS_LCTL_AN_SGMII_BYPASS   0x80000
   #define E1000_PCS_LCTL_AN_SGMII_TRIGGER  0x100000
   #define E1000_PCS_LCTL_FAST_LINK_TIMER   0x1000000
   #define E1000_PCS_LCTL_LINK_OK_FIX       0x2000000
   #define E1000_PCS_LCTL_CRS_ON_NI         0x4000000
   #define E1000_ENABLE_SERDES_LOOPBACK     0x0410
   
   #define E1000_PCS_LSTS_LINK_OK           1
   #define E1000_PCS_LSTS_SPEED_10          0
   #define E1000_PCS_LSTS_SPEED_100         2
   #define E1000_PCS_LSTS_SPEED_1000        4
   #define E1000_PCS_LSTS_DUPLEX_FULL       8
   #define E1000_PCS_LSTS_SYNK_OK           0x10
   #define E1000_PCS_LSTS_AN_COMPLETE       0x10000
   #define E1000_PCS_LSTS_AN_PAGE_RX        0x20000
   #define E1000_PCS_LSTS_AN_TIMED_OUT      0x40000
   #define E1000_PCS_LSTS_AN_REMOTE_FAULT   0x80000
   #define E1000_PCS_LSTS_AN_ERROR_RWS      0x100000
   
   /* Device Status */
   #define E1000_STATUS_FD         0x00000001      /* Full duplex.0=half,1=full */
   #define E1000_STATUS_LU         0x00000002      /* Link up.0=no,1=link */
   #define E1000_STATUS_FUNC_MASK  0x0000000C      /* PCI Function Mask */
   #define E1000_STATUS_FUNC_SHIFT 2
   #define E1000_STATUS_FUNC_0     0x00000000      /* Function 0 */
   #define E1000_STATUS_FUNC_1     0x00000004      /* Function 1 */
   #define E1000_STATUS_TXOFF      0x00000010      /* transmission paused */
   #define E1000_STATUS_TBIMODE    0x00000020      /* TBI mode */
   #define E1000_STATUS_SPEED_MASK 0x000000C0
   #define E1000_STATUS_SPEED_10   0x00000000      /* Speed 10Mb/s */
   #define E1000_STATUS_SPEED_100  0x00000040      /* Speed 100Mb/s */
   #define E1000_STATUS_SPEED_1000 0x00000080      /* Speed 1000Mb/s */
   #define E1000_STATUS_LAN_INIT_DONE 0x00000200   /* Lan Init Completion by NVM */
   #define E1000_STATUS_ASDV       0x00000300      /* Auto speed detect value */
   #define E1000_STATUS_DOCK_CI    0x00000800      /* Change in Dock/Undock state. Clear on write ''. */
   #define E1000_STATUS_GIO_MASTER_ENABLE 0x00080000 /* Status of Master requests. */
   #define E1000_STATUS_MTXCKOK    0x00000400      /* MTX clock running OK */
   #define E1000_STATUS_PCI66      0x00000800      /* In 66Mhz slot */
   #define E1000_STATUS_BUS64      0x00001000      /* In 64 bit slot */
   #define E1000_STATUS_PCIX_MODE  0x00002000      /* PCI-X mode */
   #define E1000_STATUS_PCIX_SPEED 0x0000C000      /* PCI-X bus speed */
   #define E1000_STATUS_BMC_SKU_0  0x00100000 /* BMC USB redirect disabled */
   #define E1000_STATUS_BMC_SKU_1  0x00200000 /* BMC SRAM disabled */
   #define E1000_STATUS_BMC_SKU_2  0x00400000 /* BMC SDRAM disabled */
   #define E1000_STATUS_BMC_CRYPTO 0x00800000 /* BMC crypto disabled */
   #define E1000_STATUS_BMC_LITE   0x01000000 /* BMC external code execution disabled */
   #define E1000_STATUS_RGMII_ENABLE 0x02000000 /* RGMII disabled */
   #define E1000_STATUS_FUSE_8       0x04000000
   #define E1000_STATUS_FUSE_9       0x08000000
   #define E1000_STATUS_SERDES0_DIS  0x10000000 /* SERDES disabled on port 0 */
   #define E1000_STATUS_SERDES1_DIS  0x20000000 /* SERDES disabled on port 1 */
   
   /* Constants used to intrepret the masked PCI-X bus speed. */
   #define E1000_STATUS_PCIX_SPEED_66  0x00000000 /* PCI-X bus speed  50-66 MHz */
   #define E1000_STATUS_PCIX_SPEED_100 0x00004000 /* PCI-X bus speed  66-100 MHz */
   #define E1000_STATUS_PCIX_SPEED_133 0x00008000 /* PCI-X bus speed 100-133 MHz */
   
   #define SPEED_10    10
   #define SPEED_100   100
   #define SPEED_1000  1000
   #define HALF_DUPLEX 1
   #define FULL_DUPLEX 2
   
   #define PHY_FORCE_TIME   20
   
   #define ADVERTISE_10_HALF                 0x0001
   #define ADVERTISE_10_FULL                 0x0002
   #define ADVERTISE_100_HALF                0x0004
   #define ADVERTISE_100_FULL                0x0008
   #define ADVERTISE_1000_HALF               0x0010 /* Not used, just FYI */
   #define ADVERTISE_1000_FULL               0x0020
   
   /* 1000/H is not supported, nor spec-compliant. */
   #define E1000_ALL_SPEED_DUPLEX ( ADVERTISE_10_HALF |   ADVERTISE_10_FULL | \
                                   ADVERTISE_100_HALF |  ADVERTISE_100_FULL | \
                                                        ADVERTISE_1000_FULL)
   #define E1000_ALL_NOT_GIG      ( ADVERTISE_10_HALF |   ADVERTISE_10_FULL | \
                                   ADVERTISE_100_HALF |  ADVERTISE_100_FULL)
   #define E1000_ALL_100_SPEED    (ADVERTISE_100_HALF |  ADVERTISE_100_FULL)
   #define E1000_ALL_10_SPEED      (ADVERTISE_10_HALF |   ADVERTISE_10_FULL)
   #define E1000_ALL_FULL_DUPLEX   (ADVERTISE_10_FULL |  ADVERTISE_100_FULL | \
                                                        ADVERTISE_1000_FULL)
   #define E1000_ALL_HALF_DUPLEX   (ADVERTISE_10_HALF |  ADVERTISE_100_HALF)
   
   #define AUTONEG_ADVERTISE_SPEED_DEFAULT   E1000_ALL_SPEED_DUPLEX
   
   /* LED Control */
   #define E1000_LEDCTL_LED0_MODE_MASK       0x0000000F
   #define E1000_LEDCTL_LED0_MODE_SHIFT      0
   #define E1000_LEDCTL_LED0_BLINK_RATE      0x00000020
   #define E1000_LEDCTL_LED0_IVRT            0x00000040
   #define E1000_LEDCTL_LED0_BLINK           0x00000080
   #define E1000_LEDCTL_LED1_MODE_MASK       0x00000F00
   #define E1000_LEDCTL_LED1_MODE_SHIFT      8
   #define E1000_LEDCTL_LED1_BLINK_RATE      0x00002000
   #define E1000_LEDCTL_LED1_IVRT            0x00004000
   #define E1000_LEDCTL_LED1_BLINK           0x00008000
   #define E1000_LEDCTL_LED2_MODE_MASK       0x000F0000
   #define E1000_LEDCTL_LED2_MODE_SHIFT      16
   #define E1000_LEDCTL_LED2_BLINK_RATE      0x00200000
   #define E1000_LEDCTL_LED2_IVRT            0x00400000
   #define E1000_LEDCTL_LED2_BLINK           0x00800000
   #define E1000_LEDCTL_LED3_MODE_MASK       0x0F000000
   #define E1000_LEDCTL_LED3_MODE_SHIFT      24
   #define E1000_LEDCTL_LED3_BLINK_RATE      0x20000000
   #define E1000_LEDCTL_LED3_IVRT            0x40000000
   #define E1000_LEDCTL_LED3_BLINK           0x80000000
   
   #define E1000_LEDCTL_MODE_LINK_10_1000  0x0
   #define E1000_LEDCTL_MODE_LINK_100_1000 0x1
   #define E1000_LEDCTL_MODE_LINK_UP       0x2
   #define E1000_LEDCTL_MODE_ACTIVITY      0x3
   #define E1000_LEDCTL_MODE_LINK_ACTIVITY 0x4
   #define E1000_LEDCTL_MODE_LINK_10       0x5
   #define E1000_LEDCTL_MODE_LINK_100      0x6
   #define E1000_LEDCTL_MODE_LINK_1000     0x7
   #define E1000_LEDCTL_MODE_PCIX_MODE     0x8
   #define E1000_LEDCTL_MODE_FULL_DUPLEX   0x9
   #define E1000_LEDCTL_MODE_COLLISION     0xA
   #define E1000_LEDCTL_MODE_BUS_SPEED     0xB
   #define E1000_LEDCTL_MODE_BUS_SIZE      0xC
   #define E1000_LEDCTL_MODE_PAUSED        0xD
   #define E1000_LEDCTL_MODE_LED_ON        0xE
   #define E1000_LEDCTL_MODE_LED_OFF       0xF
   
   /* Transmit Descriptor bit definitions */
   #define E1000_TXD_DTYP_D     0x00100000 /* Data Descriptor */
   #define E1000_TXD_DTYP_C     0x00000000 /* Context Descriptor */
   #define E1000_TXD_POPTS_SHIFT 8         /* POPTS shift */
   #define E1000_TXD_POPTS_IXSM 0x01       /* Insert IP checksum */
   #define E1000_TXD_POPTS_TXSM 0x02       /* Insert TCP/UDP checksum */
   #define E1000_TXD_CMD_EOP    0x01000000 /* End of Packet */
   #define E1000_TXD_CMD_IFCS   0x02000000 /* Insert FCS (Ethernet CRC) */
   #define E1000_TXD_CMD_IC     0x04000000 /* Insert Checksum */
   #define E1000_TXD_CMD_RS     0x08000000 /* Report Status */
   #define E1000_TXD_CMD_RPS    0x10000000 /* Report Packet Sent */
   #define E1000_TXD_CMD_DEXT   0x20000000 /* Descriptor extension (0 = legacy) */
   #define E1000_TXD_CMD_VLE    0x40000000 /* Add VLAN tag */
   #define E1000_TXD_CMD_IDE    0x80000000 /* Enable Tidv register */
   #define E1000_TXD_STAT_DD    0x00000001 /* Descriptor Done */
   #define E1000_TXD_STAT_EC    0x00000002 /* Excess Collisions */
   #define E1000_TXD_STAT_LC    0x00000004 /* Late Collisions */
   #define E1000_TXD_STAT_TU    0x00000008 /* Transmit underrun */
   #define E1000_TXD_CMD_TCP    0x01000000 /* TCP packet */
   #define E1000_TXD_CMD_IP     0x02000000 /* IP packet */
   #define E1000_TXD_CMD_TSE    0x04000000 /* TCP Seg enable */
   #define E1000_TXD_STAT_TC    0x00000004 /* Tx Underrun */
   /* Extended desc bits for Linksec and timesync */
   
   /* Transmit Control */
   #define E1000_TCTL_RST    0x00000001    /* software reset */
   #define E1000_TCTL_EN     0x00000002    /* enable tx */
   #define E1000_TCTL_BCE    0x00000004    /* busy check enable */
   #define E1000_TCTL_PSP    0x00000008    /* pad short packets */
   #define E1000_TCTL_CT     0x00000ff0    /* collision threshold */
   #define E1000_TCTL_COLD   0x003ff000    /* collision distance */
   #define E1000_TCTL_SWXOFF 0x00400000    /* SW Xoff transmission */
   #define E1000_TCTL_PBE    0x00800000    /* Packet Burst Enable */
   #define E1000_TCTL_RTLC   0x01000000    /* Re-transmit on late collision */
   #define E1000_TCTL_NRTU   0x02000000    /* No Re-transmit on underrun */
   #define E1000_TCTL_MULR   0x10000000    /* Multiple request support */
   
   /* Transmit Arbitration Count */
   #define E1000_TARC0_ENABLE     0x00000400   /* Enable Tx Queue 0 */
   
   /* SerDes Control */
   #define E1000_SCTL_DISABLE_SERDES_LOOPBACK 0x0400
   
   /* Receive Checksum Control */
   #define E1000_RXCSUM_PCSS_MASK 0x000000FF   /* Packet Checksum Start */
   #define E1000_RXCSUM_IPOFL     0x00000100   /* IPv4 checksum offload */
   #define E1000_RXCSUM_TUOFL     0x00000200   /* TCP / UDP checksum offload */
   #define E1000_RXCSUM_IPV6OFL   0x00000400   /* IPv6 checksum offload */
   #define E1000_RXCSUM_CRCOFL    0x00000800   /* CRC32 offload enable */
   #define E1000_RXCSUM_IPPCSE    0x00001000   /* IP payload checksum enable */
   #define E1000_RXCSUM_PCSD      0x00002000   /* packet checksum disabled */
   
   /* Header split receive */
   #define E1000_RFCTL_ISCSI_DIS           0x00000001
   #define E1000_RFCTL_ISCSI_DWC_MASK      0x0000003E
   #define E1000_RFCTL_ISCSI_DWC_SHIFT     1
   #define E1000_RFCTL_NFSW_DIS            0x00000040
   #define E1000_RFCTL_NFSR_DIS            0x00000080
   #define E1000_RFCTL_NFS_VER_MASK        0x00000300
   #define E1000_RFCTL_NFS_VER_SHIFT       8
   #define E1000_RFCTL_IPV6_DIS            0x00000400
   #define E1000_RFCTL_IPV6_XSUM_DIS       0x00000800
   #define E1000_RFCTL_ACK_DIS             0x00001000
   #define E1000_RFCTL_ACKD_DIS            0x00002000
   #define E1000_RFCTL_IPFRSP_DIS          0x00004000
   #define E1000_RFCTL_EXTEN               0x00008000
   #define E1000_RFCTL_IPV6_EX_DIS         0x00010000
   #define E1000_RFCTL_NEW_IPV6_EXT_DIS    0x00020000
   
   /* Collision related configuration parameters */
   #define E1000_COLLISION_THRESHOLD       15
   #define E1000_CT_SHIFT                  4
   #define E1000_COLLISION_DISTANCE        63
   #define E1000_COLD_SHIFT                12
   
   /* Default values for the transmit IPG register */
   #ifndef NO_82542_SUPPORT
   #define DEFAULT_82542_TIPG_IPGT        10
   #endif
   #define DEFAULT_82543_TIPG_IPGT_FIBER  9
   #define DEFAULT_82543_TIPG_IPGT_COPPER 8
   
   #define E1000_TIPG_IPGT_MASK  0x000003FF
   #define E1000_TIPG_IPGR1_MASK 0x000FFC00
   #define E1000_TIPG_IPGR2_MASK 0x3FF00000
   
   #ifndef NO_82542_SUPPORT
   #define DEFAULT_82542_TIPG_IPGR1 2
   #endif
   #define DEFAULT_82543_TIPG_IPGR1 8
   #define E1000_TIPG_IPGR1_SHIFT  10
   
   #ifndef NO_82542_SUPPORT
   #define DEFAULT_82542_TIPG_IPGR2 10
   #endif
   #define DEFAULT_82543_TIPG_IPGR2 6
   #define DEFAULT_80003ES2LAN_TIPG_IPGR2 7
   #define E1000_TIPG_IPGR2_SHIFT  20
   
   /* Ethertype field values */
   #define ETHERNET_IEEE_VLAN_TYPE 0x8100  /* 802.3ac packet */
   
   #define ETHERNET_FCS_SIZE       4
   #define MAX_JUMBO_FRAME_SIZE    0x3F00
   
   /* Extended Configuration Control and Size */
   #define E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP      0x00000020
   #define E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE       0x00000001
   #define E1000_EXTCNF_CTRL_SWFLAG                 0x00000020
   #define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK   0x00FF0000
   #define E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT          16
   #define E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK   0x0FFF0000
   #define E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT          16
   
   #define E1000_PHY_CTRL_SPD_EN             0x00000001
   #define E1000_PHY_CTRL_D0A_LPLU           0x00000002
   #define E1000_PHY_CTRL_NOND0A_LPLU        0x00000004
   #define E1000_PHY_CTRL_NOND0A_GBE_DISABLE 0x00000008
   #define E1000_PHY_CTRL_GBE_DISABLE        0x00000040
   
   #define E1000_KABGTXD_BGSQLBIAS           0x00050000
   
   /* PBA constants */
   #define E1000_PBA_8K  0x0008    /* 8KB, default Rx allocation */
   #define E1000_PBA_12K 0x000C    /* 12KB, default Rx allocation */
   #define E1000_PBA_16K 0x0010    /* 16KB, default TX allocation */
   #define E1000_PBA_20K 0x0014
   #define E1000_PBA_22K 0x0016
   #define E1000_PBA_24K 0x0018
   #define E1000_PBA_30K 0x001E
   #define E1000_PBA_32K 0x0020
   #define E1000_PBA_34K 0x0022
   #define E1000_PBA_38K 0x0026
   #define E1000_PBA_40K 0x0028
   #define E1000_PBA_48K 0x0030    /* 48KB, default RX allocation */
   
   #define E1000_PBS_16K E1000_PBA_16K
   #define E1000_PBS_24K E1000_PBA_24K
   
   #define IFS_MAX       80
   #define IFS_MIN       40
   #define IFS_RATIO     4
   #define IFS_STEP      10
   #define MIN_NUM_XMITS 1000
   
   /* SW Semaphore Register */
   #define E1000_SWSM_SMBI         0x00000001 /* Driver Semaphore bit */
   #define E1000_SWSM_SWESMBI      0x00000002 /* FW Semaphore bit */
   #define E1000_SWSM_WMNG         0x00000004 /* Wake MNG Clock */
   #define E1000_SWSM_DRV_LOAD     0x00000008 /* Driver Loaded Bit */
   
   /* Interrupt Cause Read */
   #define E1000_ICR_TXDW          0x00000001 /* Transmit desc written back */
   #define E1000_ICR_TXQE          0x00000002 /* Transmit Queue empty */
   #define E1000_ICR_LSC           0x00000004 /* Link Status Change */
   #define E1000_ICR_RXSEQ         0x00000008 /* rx sequence error */
   #define E1000_ICR_RXDMT0        0x00000010 /* rx desc min. threshold (0) */
   #define E1000_ICR_RXO           0x00000040 /* rx overrun */
   #define E1000_ICR_RXT0          0x00000080 /* rx timer intr (ring 0) */
   #define E1000_ICR_MDAC          0x00000200 /* MDIO access complete */
   #define E1000_ICR_RXCFG         0x00000400 /* RX /c/ ordered set */
   #define E1000_ICR_GPI_EN0       0x00000800 /* GP Int 0 */
   #define E1000_ICR_GPI_EN1       0x00001000 /* GP Int 1 */
   #define E1000_ICR_GPI_EN2       0x00002000 /* GP Int 2 */
   #define E1000_ICR_GPI_EN3       0x00004000 /* GP Int 3 */
   #define E1000_ICR_TXD_LOW       0x00008000
   #define E1000_ICR_SRPD          0x00010000
   #define E1000_ICR_ACK           0x00020000 /* Receive Ack frame */
   #define E1000_ICR_MNG           0x00040000 /* Manageability event */
   #define E1000_ICR_DOCK          0x00080000 /* Dock/Undock */
   #define E1000_ICR_INT_ASSERTED  0x80000000 /* If this bit asserted, the driver should claim the interrupt */
   #define E1000_ICR_RXD_FIFO_PAR0 0x00100000 /* queue 0 Rx descriptor FIFO parity error */
   #define E1000_ICR_TXD_FIFO_PAR0 0x00200000 /* queue 0 Tx descriptor FIFO parity error */
   #define E1000_ICR_HOST_ARB_PAR  0x00400000 /* host arb read buffer parity error */
   #define E1000_ICR_PB_PAR        0x00800000 /* packet buffer parity error */
   #define E1000_ICR_RXD_FIFO_PAR1 0x01000000 /* queue 1 Rx descriptor FIFO parity error */
   #define E1000_ICR_TXD_FIFO_PAR1 0x02000000 /* queue 1 Tx descriptor FIFO parity error */
   #define E1000_ICR_ALL_PARITY    0x03F00000 /* all parity error bits */
   #define E1000_ICR_DSW           0x00000020 /* FW changed the status of DISSW bit in the FWSM */
   #define E1000_ICR_PHYINT        0x00001000 /* LAN connected device generates an interrupt */
   #define E1000_ICR_EPRST         0x00100000 /* ME handware reset occurs */
   
   /* Extended Interrupt Cause Read */
   #define E1000_EICR_RX_QUEUE0    0x00000001 /* Rx Queue 0 Interrupt */
   #define E1000_EICR_RX_QUEUE1    0x00000002 /* Rx Queue 1 Interrupt */
   #define E1000_EICR_RX_QUEUE2    0x00000004 /* Rx Queue 2 Interrupt */
   #define E1000_EICR_RX_QUEUE3    0x00000008 /* Rx Queue 3 Interrupt */
   #define E1000_EICR_TX_QUEUE0    0x00000100 /* Tx Queue 0 Interrupt */
   #define E1000_EICR_TX_QUEUE1    0x00000200 /* Tx Queue 1 Interrupt */
   #define E1000_EICR_TX_QUEUE2    0x00000400 /* Tx Queue 2 Interrupt */
   #define E1000_EICR_TX_QUEUE3    0x00000800 /* Tx Queue 3 Interrupt */
   #define E1000_EICR_TCP_TIMER    0x40000000 /* TCP Timer */
   #define E1000_EICR_OTHER        0x80000000 /* Interrupt Cause Active */
   /* TCP Timer */
   #define E1000_TCPTIMER_KS       0x00000100 /* KickStart */
   #define E1000_TCPTIMER_COUNT_ENABLE       0x00000200 /* Count Enable */
   #define E1000_TCPTIMER_COUNT_FINISH       0x00000400 /* Count finish */
   #define E1000_TCPTIMER_LOOP     0x00000800 /* Loop */
   
   /*
    * This defines the bits that are set in the Interrupt Mask
    * Set/Read Register.  Each bit is documented below:
    *   o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
    *   o RXSEQ  = Receive Sequence Error
    */
   #define POLL_IMS_ENABLE_MASK ( \
       E1000_IMS_RXDMT0 |    \
       E1000_IMS_RXSEQ)
   
   /*
    * This defines the bits that are set in the Interrupt Mask
    * Set/Read Register.  Each bit is documented below:
    *   o RXT0   = Receiver Timer Interrupt (ring 0)
    *   o TXDW   = Transmit Descriptor Written Back
    *   o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
    *   o RXSEQ  = Receive Sequence Error
    *   o LSC    = Link Status Change
    */
   #define IMS_ENABLE_MASK ( \
       E1000_IMS_RXT0   |    \
       E1000_IMS_TXDW   |    \
       E1000_IMS_RXDMT0 |    \
       E1000_IMS_RXSEQ  |    \
       E1000_IMS_LSC)
   
   /* Interrupt Mask Set */
   #define E1000_IMS_TXDW      E1000_ICR_TXDW      /* Transmit desc written back */
   #define E1000_IMS_TXQE      E1000_ICR_TXQE      /* Transmit Queue empty */
   #define E1000_IMS_LSC       E1000_ICR_LSC       /* Link Status Change */
   #define E1000_IMS_RXSEQ     E1000_ICR_RXSEQ     /* rx sequence error */
   #define E1000_IMS_RXDMT0    E1000_ICR_RXDMT0    /* rx desc min. threshold */
   #define E1000_IMS_RXO       E1000_ICR_RXO       /* rx overrun */
   #define E1000_IMS_RXT0      E1000_ICR_RXT0      /* rx timer intr */
   #define E1000_IMS_MDAC      E1000_ICR_MDAC      /* MDIO access complete */
   #define E1000_IMS_RXCFG     E1000_ICR_RXCFG     /* RX /c/ ordered set */
   #define E1000_IMS_GPI_EN0   E1000_ICR_GPI_EN0   /* GP Int 0 */
   #define E1000_IMS_GPI_EN1   E1000_ICR_GPI_EN1   /* GP Int 1 */
   #define E1000_IMS_GPI_EN2   E1000_ICR_GPI_EN2   /* GP Int 2 */
   #define E1000_IMS_GPI_EN3   E1000_ICR_GPI_EN3   /* GP Int 3 */
   #define E1000_IMS_TXD_LOW   E1000_ICR_TXD_LOW
   #define E1000_IMS_SRPD      E1000_ICR_SRPD
   #define E1000_IMS_ACK       E1000_ICR_ACK       /* Receive Ack frame */
   #define E1000_IMS_MNG       E1000_ICR_MNG       /* Manageability event */
   #define E1000_IMS_DOCK      E1000_ICR_DOCK      /* Dock/Undock */
   #define E1000_IMS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */
   #define E1000_IMS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */
   #define E1000_IMS_HOST_ARB_PAR  E1000_ICR_HOST_ARB_PAR  /* host arb read buffer parity error */
   #define E1000_IMS_PB_PAR        E1000_ICR_PB_PAR        /* packet buffer parity error */
   #define E1000_IMS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */
   #define E1000_IMS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */
   #define E1000_IMS_DSW       E1000_ICR_DSW
   #define E1000_IMS_PHYINT    E1000_ICR_PHYINT
   #define E1000_IMS_EPRST     E1000_ICR_EPRST
   
   /* Extended Interrupt Mask Set */
   #define E1000_EIMS_RX_QUEUE0    E1000_EICR_RX_QUEUE0 /* Rx Queue 0 Interrupt */
   #define E1000_EIMS_RX_QUEUE1    E1000_EICR_RX_QUEUE1 /* Rx Queue 1 Interrupt */
   #define E1000_EIMS_RX_QUEUE2    E1000_EICR_RX_QUEUE2 /* Rx Queue 2 Interrupt */
   #define E1000_EIMS_RX_QUEUE3    E1000_EICR_RX_QUEUE3 /* Rx Queue 3 Interrupt */
   #define E1000_EIMS_TX_QUEUE0    E1000_EICR_TX_QUEUE0 /* Tx Queue 0 Interrupt */
   #define E1000_EIMS_TX_QUEUE1    E1000_EICR_TX_QUEUE1 /* Tx Queue 1 Interrupt */
   #define E1000_EIMS_TX_QUEUE2    E1000_EICR_TX_QUEUE2 /* Tx Queue 2 Interrupt */
   #define E1000_EIMS_TX_QUEUE3    E1000_EICR_TX_QUEUE3 /* Tx Queue 3 Interrupt */
   #define E1000_EIMS_TCP_TIMER    E1000_EICR_TCP_TIMER /* TCP Timer */
   #define E1000_EIMS_OTHER        E1000_EICR_OTHER   /* Interrupt Cause Active */
   
   /* Interrupt Cause Set */
   #define E1000_ICS_TXDW      E1000_ICR_TXDW      /* Transmit desc written back */
   #define E1000_ICS_TXQE      E1000_ICR_TXQE      /* Transmit Queue empty */
   #define E1000_ICS_LSC       E1000_ICR_LSC       /* Link Status Change */
   #define E1000_ICS_RXSEQ     E1000_ICR_RXSEQ     /* rx sequence error */
   #define E1000_ICS_RXDMT0    E1000_ICR_RXDMT0    /* rx desc min. threshold */
   #define E1000_ICS_RXO       E1000_ICR_RXO       /* rx overrun */
   #define E1000_ICS_RXT0      E1000_ICR_RXT0      /* rx timer intr */
   #define E1000_ICS_MDAC      E1000_ICR_MDAC      /* MDIO access complete */
   #define E1000_ICS_RXCFG     E1000_ICR_RXCFG     /* RX /c/ ordered set */
   #define E1000_ICS_GPI_EN0   E1000_ICR_GPI_EN0   /* GP Int 0 */
   #define E1000_ICS_GPI_EN1   E1000_ICR_GPI_EN1   /* GP Int 1 */
   #define E1000_ICS_GPI_EN2   E1000_ICR_GPI_EN2   /* GP Int 2 */
   #define E1000_ICS_GPI_EN3   E1000_ICR_GPI_EN3   /* GP Int 3 */
   #define E1000_ICS_TXD_LOW   E1000_ICR_TXD_LOW
   #define E1000_ICS_SRPD      E1000_ICR_SRPD
   #define E1000_ICS_ACK       E1000_ICR_ACK       /* Receive Ack frame */
   #define E1000_ICS_MNG       E1000_ICR_MNG       /* Manageability event */
   #define E1000_ICS_DOCK      E1000_ICR_DOCK      /* Dock/Undock */
   #define E1000_ICS_RXD_FIFO_PAR0 E1000_ICR_RXD_FIFO_PAR0 /* queue 0 Rx descriptor FIFO parity error */
   #define E1000_ICS_TXD_FIFO_PAR0 E1000_ICR_TXD_FIFO_PAR0 /* queue 0 Tx descriptor FIFO parity error */
   #define E1000_ICS_HOST_ARB_PAR  E1000_ICR_HOST_ARB_PAR  /* host arb read buffer parity error */
   #define E1000_ICS_PB_PAR        E1000_ICR_PB_PAR        /* packet buffer parity error */
   #define E1000_ICS_RXD_FIFO_PAR1 E1000_ICR_RXD_FIFO_PAR1 /* queue 1 Rx descriptor FIFO parity error */
   #define E1000_ICS_TXD_FIFO_PAR1 E1000_ICR_TXD_FIFO_PAR1 /* queue 1 Tx descriptor FIFO parity error */
   #define E1000_ICS_DSW       E1000_ICR_DSW
   #define E1000_ICS_PHYINT    E1000_ICR_PHYINT
   #define E1000_ICS_EPRST     E1000_ICR_EPRST
   
   /* Extended Interrupt Cause Set */
   #define E1000_EICS_RX_QUEUE0    E1000_EICR_RX_QUEUE0 /* Rx Queue 0 Interrupt */
   #define E1000_EICS_RX_QUEUE1    E1000_EICR_RX_QUEUE1 /* Rx Queue 1 Interrupt */
   #define E1000_EICS_RX_QUEUE2    E1000_EICR_RX_QUEUE2 /* Rx Queue 2 Interrupt */
   #define E1000_EICS_RX_QUEUE3    E1000_EICR_RX_QUEUE3 /* Rx Queue 3 Interrupt */
   #define E1000_EICS_TX_QUEUE0    E1000_EICR_TX_QUEUE0 /* Tx Queue 0 Interrupt */
   #define E1000_EICS_TX_QUEUE1    E1000_EICR_TX_QUEUE1 /* Tx Queue 1 Interrupt */
   #define E1000_EICS_TX_QUEUE2    E1000_EICR_TX_QUEUE2 /* Tx Queue 2 Interrupt */
   #define E1000_EICS_TX_QUEUE3    E1000_EICR_TX_QUEUE3 /* Tx Queue 3 Interrupt */
   #define E1000_EICS_TCP_TIMER    E1000_EICR_TCP_TIMER /* TCP Timer */
   #define E1000_EICS_OTHER        E1000_EICR_OTHER   /* Interrupt Cause Active */
   
   /* Transmit Descriptor Control */
   #define E1000_TXDCTL_PTHRESH 0x0000003F /* TXDCTL Prefetch Threshold */
   #define E1000_TXDCTL_HTHRESH 0x00003F00 /* TXDCTL Host Threshold */
   #define E1000_TXDCTL_WTHRESH 0x003F0000 /* TXDCTL Writeback Threshold */
   #define E1000_TXDCTL_GRAN    0x01000000 /* TXDCTL Granularity */
   #define E1000_TXDCTL_LWTHRESH 0xFE000000 /* TXDCTL Low Threshold */
   #define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000 /* GRAN=1, WTHRESH=1 */
   #define E1000_TXDCTL_MAX_TX_DESC_PREFETCH 0x0100001F /* GRAN=1, PTHRESH=31 */
   /* Enable the counting of descriptors still to be processed. */
   #define E1000_TXDCTL_COUNT_DESC 0x00400000
   
   /* Flow Control Constants */
   #define FLOW_CONTROL_ADDRESS_LOW  0x00C28001
   #define FLOW_CONTROL_ADDRESS_HIGH 0x00000100
   #define FLOW_CONTROL_TYPE         0x8808
   
   /* 802.1q VLAN Packet Size */
   #define VLAN_TAG_SIZE              4    /* 802.3ac tag (not DMA'd) */
   #define E1000_VLAN_FILTER_TBL_SIZE 128  /* VLAN Filter Table (4096 bits) */
   
   /* Receive Address */
   /*
    * Number of high/low register pairs in the RAR. The RAR (Receive Address
    * Registers) holds the directed and multicast addresses that we monitor.
    * Technically, we have 16 spots.  However, we reserve one of these spots
    * (RAR[15]) for our directed address used by controllers with
    * manageability enabled, allowing us room for 15 multicast addresses.
    */
   #define E1000_RAR_ENTRIES     15
   #define E1000_RAH_AV  0x80000000        /* Receive descriptor valid */
   
   /* Error Codes */
   #define E1000_SUCCESS      0
   #define E1000_ERR_NVM      1
   #define E1000_ERR_PHY      2
   #define E1000_ERR_CONFIG   3
   #define E1000_ERR_PARAM    4
   #define E1000_ERR_MAC_INIT 5
   #define E1000_ERR_PHY_TYPE 6
   #define E1000_ERR_RESET   9
   #define E1000_ERR_MASTER_REQUESTS_PENDING 10
   #define E1000_ERR_HOST_INTERFACE_COMMAND 11
   #define E1000_BLK_PHY_RESET   12
   #define E1000_ERR_SWFW_SYNC 13
   #define E1000_NOT_IMPLEMENTED 14
   
   /* Loop limit on how long we wait for auto-negotiation to complete */
   #define FIBER_LINK_UP_LIMIT               50
   #define COPPER_LINK_UP_LIMIT              10
   #define PHY_AUTO_NEG_LIMIT                45
   #define PHY_FORCE_LIMIT                   20
   /* Number of 100 microseconds we wait for PCI Express master disable */
   #define MASTER_DISABLE_TIMEOUT      800
   /* Number of milliseconds we wait for PHY configuration done after MAC reset */
   #define PHY_CFG_TIMEOUT             100
   /* Number of 2 milliseconds we wait for acquiring MDIO ownership. */
   #define MDIO_OWNERSHIP_TIMEOUT      10
   /* Number of milliseconds for NVM auto read done after MAC reset. */
   #define AUTO_READ_DONE_TIMEOUT      10
   
   /* Flow Control */
   #define E1000_FCRTH_RTH  0x0000FFF8     /* Mask Bits[15:3] for RTH */
   #define E1000_FCRTH_XFCE 0x80000000     /* External Flow Control Enable */
   #define E1000_FCRTL_RTL  0x0000FFF8     /* Mask Bits[15:3] for RTL */
   #define E1000_FCRTL_XONE 0x80000000     /* Enable XON frame transmission */
   
   /* Transmit Configuration Word */
   #define E1000_TXCW_FD         0x00000020        /* TXCW full duplex */
   #define E1000_TXCW_HD         0x00000040        /* TXCW half duplex */
   #define E1000_TXCW_PAUSE      0x00000080        /* TXCW sym pause request */
   #define E1000_TXCW_ASM_DIR    0x00000100        /* TXCW astm pause direction */
   #define E1000_TXCW_PAUSE_MASK 0x00000180        /* TXCW pause request mask */
   #define E1000_TXCW_RF         0x00003000        /* TXCW remote fault */
   #define E1000_TXCW_NP         0x00008000        /* TXCW next page */
   #define E1000_TXCW_CW         0x0000ffff        /* TxConfigWord mask */
   #define E1000_TXCW_TXC        0x40000000        /* Transmit Config control */
   #define E1000_TXCW_ANE        0x80000000        /* Auto-neg enable */
   
   /* Receive Configuration Word */
   #define E1000_RXCW_CW         0x0000ffff        /* RxConfigWord mask */
   #define E1000_RXCW_NC         0x04000000        /* Receive config no carrier */
   #define E1000_RXCW_IV         0x08000000        /* Receive config invalid */
   #define E1000_RXCW_CC         0x10000000        /* Receive config change */
   #define E1000_RXCW_C          0x20000000        /* Receive config */
   #define E1000_RXCW_SYNCH      0x40000000        /* Receive config synch */
   #define E1000_RXCW_ANC        0x80000000        /* Auto-neg complete */
   
   /* PCI Express Control */
   #define E1000_GCR_RXD_NO_SNOOP          0x00000001
   #define E1000_GCR_RXDSCW_NO_SNOOP       0x00000002
   #define E1000_GCR_RXDSCR_NO_SNOOP       0x00000004
   #define E1000_GCR_TXD_NO_SNOOP          0x00000008
   #define E1000_GCR_TXDSCW_NO_SNOOP       0x00000010
   #define E1000_GCR_TXDSCR_NO_SNOOP       0x00000020
   
   #define PCIE_NO_SNOOP_ALL (E1000_GCR_RXD_NO_SNOOP         | \
                              E1000_GCR_RXDSCW_NO_SNOOP      | \
                              E1000_GCR_RXDSCR_NO_SNOOP      | \
                              E1000_GCR_TXD_NO_SNOOP         | \
                              E1000_GCR_TXDSCW_NO_SNOOP      | \
                              E1000_GCR_TXDSCR_NO_SNOOP)
   
   /* PHY Control Register */
   #define MII_CR_SPEED_SELECT_MSB 0x0040  /* bits 6,13: 10=1000, 01=100, 00=10 */
   #define MII_CR_COLL_TEST_ENABLE 0x0080  /* Collision test enable */
   #define MII_CR_FULL_DUPLEX      0x0100  /* FDX =1, half duplex =0 */
   #define MII_CR_RESTART_AUTO_NEG 0x0200  /* Restart auto negotiation */
   #define MII_CR_ISOLATE          0x0400  /* Isolate PHY from MII */
   #define MII_CR_POWER_DOWN       0x0800  /* Power down */
   #define MII_CR_AUTO_NEG_EN      0x1000  /* Auto Neg Enable */
   #define MII_CR_SPEED_SELECT_LSB 0x2000  /* bits 6,13: 10=1000, 01=100, 00=10 */
   #define MII_CR_LOOPBACK         0x4000  /* 0 = normal, 1 = loopback */
   #define MII_CR_RESET            0x8000  /* 0 = normal, 1 = PHY reset */
   #define MII_CR_SPEED_1000       0x0040
   #define MII_CR_SPEED_100        0x2000
   #define MII_CR_SPEED_10         0x0000
   
   /* PHY Status Register */
   #define MII_SR_EXTENDED_CAPS     0x0001 /* Extended register capabilities */
   #define MII_SR_JABBER_DETECT     0x0002 /* Jabber Detected */
   #define MII_SR_LINK_STATUS       0x0004 /* Link Status 1 = link */
   #define MII_SR_AUTONEG_CAPS      0x0008 /* Auto Neg Capable */
   #define MII_SR_REMOTE_FAULT      0x0010 /* Remote Fault Detect */
   #define MII_SR_AUTONEG_COMPLETE  0x0020 /* Auto Neg Complete */
   #define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */
   #define MII_SR_EXTENDED_STATUS   0x0100 /* Ext. status info in Reg 0x0F */
   #define MII_SR_100T2_HD_CAPS     0x0200 /* 100T2 Half Duplex Capable */
   #define MII_SR_100T2_FD_CAPS     0x0400 /* 100T2 Full Duplex Capable */
   #define MII_SR_10T_HD_CAPS       0x0800 /* 10T   Half Duplex Capable */
   #define MII_SR_10T_FD_CAPS       0x1000 /* 10T   Full Duplex Capable */
   #define MII_SR_100X_HD_CAPS      0x2000 /* 100X  Half Duplex Capable */
   #define MII_SR_100X_FD_CAPS      0x4000 /* 100X  Full Duplex Capable */
   #define MII_SR_100T4_CAPS        0x8000 /* 100T4 Capable */
   
   /* Autoneg Advertisement Register */
   #define NWAY_AR_SELECTOR_FIELD   0x0001   /* indicates IEEE 802.3 CSMA/CD */
   #define NWAY_AR_10T_HD_CAPS      0x0020   /* 10T   Half Duplex Capable */
   #define NWAY_AR_10T_FD_CAPS      0x0040   /* 10T   Full Duplex Capable */
   #define NWAY_AR_100TX_HD_CAPS    0x0080   /* 100TX Half Duplex Capable */
   #define NWAY_AR_100TX_FD_CAPS    0x0100   /* 100TX Full Duplex Capable */
   #define NWAY_AR_100T4_CAPS       0x0200   /* 100T4 Capable */
   #define NWAY_AR_PAUSE            0x0400   /* Pause operation desired */
   #define NWAY_AR_ASM_DIR          0x0800   /* Asymmetric Pause Direction bit */
   #define NWAY_AR_REMOTE_FAULT     0x2000   /* Remote Fault detected */
   #define NWAY_AR_NEXT_PAGE        0x8000   /* Next Page ability supported */
   
   /* Link Partner Ability Register (Base Page) */
   #define NWAY_LPAR_SELECTOR_FIELD 0x0000 /* LP protocol selector field */
   #define NWAY_LPAR_10T_HD_CAPS    0x0020 /* LP is 10T   Half Duplex Capable */
   #define NWAY_LPAR_10T_FD_CAPS    0x0040 /* LP is 10T   Full Duplex Capable */
   #define NWAY_LPAR_100TX_HD_CAPS  0x0080 /* LP is 100TX Half Duplex Capable */
   #define NWAY_LPAR_100TX_FD_CAPS  0x0100 /* LP is 100TX Full Duplex Capable */
   #define NWAY_LPAR_100T4_CAPS     0x0200 /* LP is 100T4 Capable */
   #define NWAY_LPAR_PAUSE          0x0400 /* LP Pause operation desired */
   #define NWAY_LPAR_ASM_DIR        0x0800 /* LP Asymmetric Pause Direction bit */
   #define NWAY_LPAR_REMOTE_FAULT   0x2000 /* LP has detected Remote Fault */
   #define NWAY_LPAR_ACKNOWLEDGE    0x4000 /* LP has rx'd link code word */
   #define NWAY_LPAR_NEXT_PAGE      0x8000 /* Next Page ability supported */
   
   /* Autoneg Expansion Register */
   #define NWAY_ER_LP_NWAY_CAPS      0x0001 /* LP has Auto Neg Capability */
   #define NWAY_ER_PAGE_RXD          0x0002 /* LP is 10T   Half Duplex Capable */
   #define NWAY_ER_NEXT_PAGE_CAPS    0x0004 /* LP is 10T   Full Duplex Capable */
   #define NWAY_ER_LP_NEXT_PAGE_CAPS 0x0008 /* LP is 100TX Half Duplex Capable */
   #define NWAY_ER_PAR_DETECT_FAULT  0x0010 /* LP is 100TX Full Duplex Capable */
   
   /* 1000BASE-T Control Register */
   #define CR_1000T_ASYM_PAUSE      0x0080 /* Advertise asymmetric pause bit */
   #define CR_1000T_HD_CAPS         0x0100 /* Advertise 1000T HD capability */
   #define CR_1000T_FD_CAPS         0x0200 /* Advertise 1000T FD capability  */
   #define CR_1000T_REPEATER_DTE    0x0400 /* 1=Repeater/switch device port */
                                           /* 0=DTE device */
   #define CR_1000T_MS_VALUE        0x0800 /* 1=Configure PHY as Master */
                                           /* 0=Configure PHY as Slave */
   #define CR_1000T_MS_ENABLE       0x1000 /* 1=Master/Slave manual config value */
                                           /* 0=Automatic Master/Slave config */
  #define CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */
  #define CR_1000T_TEST_MODE_1     0x2000 /* Transmit Waveform test */
  #define CR_1000T_TEST_MODE_2     0x4000 /* Master Transmit Jitter test */
  #define CR_1000T_TEST_MODE_3     0x6000 /* Slave Transmit Jitter test */
  #define CR_1000T_TEST_MODE_4     0x8000 /* Transmitter Distortion test */
  
  /* 1000BASE-T Status Register */
  #define SR_1000T_IDLE_ERROR_CNT   0x00FF /* Num idle errors since last read */
  #define SR_1000T_ASYM_PAUSE_DIR   0x0100 /* LP asymmetric pause direction bit */
  #define SR_1000T_LP_HD_CAPS       0x0400 /* LP is 1000T HD capable */
  #define SR_1000T_LP_FD_CAPS       0x0800 /* LP is 1000T FD capable */
  #define SR_1000T_REMOTE_RX_STATUS 0x1000 /* Remote receiver OK */
  #define SR_1000T_LOCAL_RX_STATUS  0x2000 /* Local receiver OK */
  #define SR_1000T_MS_CONFIG_RES    0x4000 /* 1=Local TX is Master, 0=Slave */
  #define SR_1000T_MS_CONFIG_FAULT  0x8000 /* Master/Slave config fault */
  
  #define SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT 5
  
  /* PHY 1000 MII Register/Bit Definitions */
  /* PHY Registers defined by IEEE */
  #define PHY_CONTROL      0x00 /* Control Register */
  #define PHY_STATUS       0x01 /* Status Regiser */
  #define PHY_ID1          0x02 /* Phy Id Reg (word 1) */
  #define PHY_ID2          0x03 /* Phy Id Reg (word 2) */
  #define PHY_AUTONEG_ADV  0x04 /* Autoneg Advertisement */
  #define PHY_LP_ABILITY   0x05 /* Link Partner Ability (Base Page) */
  #define PHY_AUTONEG_EXP  0x06 /* Autoneg Expansion Reg */
  #define PHY_NEXT_PAGE_TX 0x07 /* Next Page TX */
  #define PHY_LP_NEXT_PAGE 0x08 /* Link Partner Next Page */
  #define PHY_1000T_CTRL   0x09 /* 1000Base-T Control Reg */
  #define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Reg */
  #define PHY_EXT_STATUS   0x0F /* Extended Status Reg */
  
  /* NVM Control */
  #define E1000_EECD_SK        0x00000001 /* NVM Clock */
  #define E1000_EECD_CS        0x00000002 /* NVM Chip Select */
  #define E1000_EECD_DI        0x00000004 /* NVM Data In */
  #define E1000_EECD_DO        0x00000008 /* NVM Data Out */
  #define E1000_EECD_FWE_MASK  0x00000030
  #define E1000_EECD_FWE_DIS   0x00000010 /* Disable FLASH writes */
  #define E1000_EECD_FWE_EN    0x00000020 /* Enable FLASH writes */
  #define E1000_EECD_FWE_SHIFT 4
  #define E1000_EECD_REQ       0x00000040 /* NVM Access Request */
  #define E1000_EECD_GNT       0x00000080 /* NVM Access Grant */
  #define E1000_EECD_PRES      0x00000100 /* NVM Present */
  #define E1000_EECD_SIZE      0x00000200 /* NVM Size (0=64 word 1=256 word) */
  /* NVM Addressing bits based on type 0=small, 1=large */
  #define E1000_EECD_ADDR_BITS 0x00000400
  #define E1000_EECD_TYPE      0x00002000 /* NVM Type (1-SPI, 0-Microwire) */
  #ifndef E1000_NVM_GRANT_ATTEMPTS
  #define E1000_NVM_GRANT_ATTEMPTS   1000 /* NVM # attempts to gain grant */
  #endif
  #define E1000_EECD_AUTO_RD          0x00000200  /* NVM Auto Read done */
  #define E1000_EECD_SIZE_EX_MASK     0x00007800  /* NVM Size */
  #define E1000_EECD_SIZE_EX_SHIFT     11
  #define E1000_EECD_NVADDS    0x00018000 /* NVM Address Size */
  #define E1000_EECD_SELSHAD   0x00020000 /* Select Shadow RAM */
  #define E1000_EECD_INITSRAM  0x00040000 /* Initialize Shadow RAM */
  #define E1000_EECD_FLUPD     0x00080000 /* Update FLASH */
  #define E1000_EECD_AUPDEN    0x00100000 /* Enable Autonomous FLASH update */
  #define E1000_EECD_SHADV     0x00200000 /* Shadow RAM Data Valid */
  #define E1000_EECD_SEC1VAL   0x00400000 /* Sector One Valid */
  #define E1000_EECD_SECVAL_SHIFT      22
  
  #define E1000_NVM_SWDPIN0   0x0001   /* SWDPIN 0 NVM Value */
  #define E1000_NVM_LED_LOGIC 0x0020   /* Led Logic Word */
  #define E1000_NVM_RW_REG_DATA   16   /* Offset to data in NVM read/write registers */
  #define E1000_NVM_RW_REG_DONE   2    /* Offset to READ/WRITE done bit */
  #define E1000_NVM_RW_REG_START  1    /* Start operation */
  #define E1000_NVM_RW_ADDR_SHIFT 2    /* Shift to the address bits */
  #define E1000_NVM_POLL_WRITE    1    /* Flag for polling for write complete */
  #define E1000_NVM_POLL_READ     0    /* Flag for polling for read complete */
  #define E1000_FLASH_UPDATES  2000
  
  /* NVM Word Offsets */
  #define NVM_COMPAT                 0x0003
  #define NVM_ID_LED_SETTINGS        0x0004
  #define NVM_VERSION                0x0005
  #define NVM_SERDES_AMPLITUDE       0x0006 /* For SERDES output amplitude adjustment. */
  #define NVM_PHY_CLASS_WORD         0x0007
  #define NVM_INIT_CONTROL1_REG      0x000A
  #define NVM_INIT_CONTROL2_REG      0x000F
  #define NVM_SWDEF_PINS_CTRL_PORT_1 0x0010
  #define NVM_INIT_CONTROL3_PORT_B   0x0014
  #define NVM_INIT_3GIO_3            0x001A
  #define NVM_SWDEF_PINS_CTRL_PORT_0 0x0020
  #define NVM_INIT_CONTROL3_PORT_A   0x0024
  #define NVM_CFG                    0x0012
  #define NVM_FLASH_VERSION          0x0032
  #define NVM_ALT_MAC_ADDR_PTR       0x0037
  #define NVM_CHECKSUM_REG           0x003F
  
  #define E1000_NVM_CFG_DONE_PORT_0  0x40000 /* MNG config cycle done */
  #define E1000_NVM_CFG_DONE_PORT_1  0x80000 /* ...for second port */
  
  /* Mask bits for fields in Word 0x0f of the NVM */
  #define NVM_WORD0F_PAUSE_MASK       0x3000
  #define NVM_WORD0F_PAUSE            0x1000
  #define NVM_WORD0F_ASM_DIR          0x2000
  #define NVM_WORD0F_ANE              0x0800
  #define NVM_WORD0F_SWPDIO_EXT_MASK  0x00F0
  #define NVM_WORD0F_LPLU             0x0001
  
  /* Mask bits for fields in Word 0x1a of the NVM */
  #define NVM_WORD1A_ASPM_MASK  0x000C
  
  /* For checksumming, the sum of all words in the NVM should equal 0xBABA. */
  #define NVM_SUM                    0xBABA
  
  #define NVM_MAC_ADDR_OFFSET        0
  #define NVM_PBA_OFFSET_0           8
  #define NVM_PBA_OFFSET_1           9
  #define NVM_RESERVED_WORD          0xFFFF
  #define NVM_PHY_CLASS_A            0x8000
  #define NVM_SERDES_AMPLITUDE_MASK  0x000F
  #define NVM_SIZE_MASK              0x1C00
  #define NVM_SIZE_SHIFT             10
  #define NVM_WORD_SIZE_BASE_SHIFT   6
  #define NVM_SWDPIO_EXT_SHIFT       4
  
  /* NVM Commands - Microwire */
  #define NVM_READ_OPCODE_MICROWIRE  0x6  /* NVM read opcode */
  #define NVM_WRITE_OPCODE_MICROWIRE 0x5  /* NVM write opcode */
  #define NVM_ERASE_OPCODE_MICROWIRE 0x7  /* NVM erase opcode */
  #define NVM_EWEN_OPCODE_MICROWIRE  0x13 /* NVM erase/write enable */
  #define NVM_EWDS_OPCODE_MICROWIRE  0x10 /* NVM erast/write disable */
  
  /* NVM Commands - SPI */
  #define NVM_MAX_RETRY_SPI          5000 /* Max wait of 5ms, for RDY signal */
  #define NVM_READ_OPCODE_SPI        0x03 /* NVM read opcode */
  #define NVM_WRITE_OPCODE_SPI       0x02 /* NVM write opcode */
  #define NVM_A8_OPCODE_SPI          0x08 /* opcode bit-3 = address bit-8 */
  #define NVM_WREN_OPCODE_SPI        0x06 /* NVM set Write Enable latch */
  #define NVM_WRDI_OPCODE_SPI        0x04 /* NVM reset Write Enable latch */
  #define NVM_RDSR_OPCODE_SPI        0x05 /* NVM read Status register */
  #define NVM_WRSR_OPCODE_SPI        0x01 /* NVM write Status register */
  
  /* SPI NVM Status Register */
  #define NVM_STATUS_RDY_SPI         0x01
  #define NVM_STATUS_WEN_SPI         0x02
  #define NVM_STATUS_BP0_SPI         0x04
  #define NVM_STATUS_BP1_SPI         0x08
  #define NVM_STATUS_WPEN_SPI        0x80
  
  /* Word definitions for ID LED Settings */
  #define ID_LED_RESERVED_0000 0x0000
  #define ID_LED_RESERVED_FFFF 0xFFFF
  #define ID_LED_DEFAULT       ((ID_LED_OFF1_ON2  << 12) | \
                                (ID_LED_OFF1_OFF2 <<  8) | \
                                (ID_LED_DEF1_DEF2 <<  4) | \
                                (ID_LED_DEF1_DEF2))
  #define ID_LED_DEF1_DEF2     0x1
  #define ID_LED_DEF1_ON2      0x2
  #define ID_LED_DEF1_OFF2     0x3
  #define ID_LED_ON1_DEF2      0x4
  #define ID_LED_ON1_ON2       0x5
  #define ID_LED_ON1_OFF2      0x6
  #define ID_LED_OFF1_DEF2     0x7
  #define ID_LED_OFF1_ON2      0x8
  #define ID_LED_OFF1_OFF2     0x9
  
  #define IGP_ACTIVITY_LED_MASK   0xFFFFF0FF
  #define IGP_ACTIVITY_LED_ENABLE 0x0300
  #define IGP_LED3_MODE           0x07000000
  
  /* PCI/PCI-X/PCI-EX Config space */
  #define PCIX_COMMAND_REGISTER        0xE6
  #define PCIX_STATUS_REGISTER_LO      0xE8
  #define PCIX_STATUS_REGISTER_HI      0xEA
  #define PCI_HEADER_TYPE_REGISTER     0x0E
  #define PCIE_LINK_STATUS             0x12
  
  #define PCIX_COMMAND_MMRBC_MASK      0x000C
  #define PCIX_COMMAND_MMRBC_SHIFT     0x2
  #define PCIX_STATUS_HI_MMRBC_MASK    0x0060
  #define PCIX_STATUS_HI_MMRBC_SHIFT   0x5
  #define PCIX_STATUS_HI_MMRBC_4K      0x3
  #define PCIX_STATUS_HI_MMRBC_2K      0x2
  #define PCIX_STATUS_LO_FUNC_MASK     0x7
  #define PCI_HEADER_TYPE_MULTIFUNC    0x80
  #define PCIE_LINK_WIDTH_MASK         0x3F0
  #define PCIE_LINK_WIDTH_SHIFT        4
  
  #ifndef ETH_ADDR_LEN
  #define ETH_ADDR_LEN                 6
  #endif
  
  #define PHY_REVISION_MASK      0xFFFFFFF0
  #define MAX_PHY_REG_ADDRESS    0x1F  /* 5 bit address bus (0-0x1F) */
  #define MAX_PHY_MULTI_PAGE_REG 0xF
  
  /* Bit definitions for valid PHY IDs. */
  /*
   * I = Integrated
   * E = External
   */
  #define M88E1000_E_PHY_ID    0x01410C50
  #define M88E1000_I_PHY_ID    0x01410C30
  #define M88E1011_I_PHY_ID    0x01410C20
  #define IGP01E1000_I_PHY_ID  0x02A80380
  #define M88E1011_I_REV_4     0x04
  #define M88E1111_I_PHY_ID    0x01410CC0
  #define GG82563_E_PHY_ID     0x01410CA0
  #define IGP03E1000_E_PHY_ID  0x02A80390
  #define IFE_E_PHY_ID         0x02A80330
  #define IFE_PLUS_E_PHY_ID    0x02A80320
  #define IFE_C_E_PHY_ID       0x02A80310
  #define M88_VENDOR           0x0141
  
  /* M88E1000 Specific Registers */
  #define M88E1000_PHY_SPEC_CTRL     0x10  /* PHY Specific Control Register */
  #define M88E1000_PHY_SPEC_STATUS   0x11  /* PHY Specific Status Register */
  #define M88E1000_INT_ENABLE        0x12  /* Interrupt Enable Register */
  #define M88E1000_INT_STATUS        0x13  /* Interrupt Status Register */
  #define M88E1000_EXT_PHY_SPEC_CTRL 0x14  /* Extended PHY Specific Control */
  #define M88E1000_RX_ERR_CNTR       0x15  /* Receive Error Counter */
  
  #define M88E1000_PHY_EXT_CTRL      0x1A  /* PHY extend control register */
  #define M88E1000_PHY_PAGE_SELECT   0x1D  /* Reg 29 for page number setting */
  #define M88E1000_PHY_GEN_CONTROL   0x1E  /* Its meaning depends on reg 29 */
  #define M88E1000_PHY_VCO_REG_BIT8  0x100 /* Bits 8 & 11 are adjusted for */
  #define M88E1000_PHY_VCO_REG_BIT11 0x800    /* improved BER performance */
  
  /* M88E1000 PHY Specific Control Register */
  #define M88E1000_PSCR_JABBER_DISABLE    0x0001 /* 1=Jabber Function disabled */
  #define M88E1000_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reversal enabled */
  #define M88E1000_PSCR_SQE_TEST          0x0004 /* 1=SQE Test enabled */
  /* 1=CLK125 low, 0=CLK125 toggling */
  #define M88E1000_PSCR_CLK125_DISABLE    0x0010
  #define M88E1000_PSCR_MDI_MANUAL_MODE  0x0000  /* MDI Crossover Mode bits 6:5 */
                                                 /* Manual MDI configuration */
  #define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020  /* Manual MDIX configuration */
  /* 1000BASE-T: Auto crossover, 100BASE-TX/10BASE-T: MDI Mode */
  #define M88E1000_PSCR_AUTO_X_1000T     0x0040
  /* Auto crossover enabled all speeds */
  #define M88E1000_PSCR_AUTO_X_MODE      0x0060
  /*
   * 1=Enable Extended 10BASE-T distance (Lower 10BASE-T RX Threshold
   * 0=Normal 10BASE-T RX Threshold
   */
  #define M88E1000_PSCR_EN_10BT_EXT_DIST 0x0080
  /* 1=5-bit interface in 100BASE-TX, 0=MII interface in 100BASE-TX */
  #define M88E1000_PSCR_MII_5BIT_ENABLE      0x0100
  #define M88E1000_PSCR_SCRAMBLER_DISABLE    0x0200 /* 1=Scrambler disable */
  #define M88E1000_PSCR_FORCE_LINK_GOOD      0x0400 /* 1=Force link good */
  #define M88E1000_PSCR_ASSERT_CRS_ON_TX     0x0800 /* 1=Assert CRS on Transmit */
  
  /* M88E1000 PHY Specific Status Register */
  #define M88E1000_PSSR_JABBER             0x0001 /* 1=Jabber */
  #define M88E1000_PSSR_REV_POLARITY       0x0002 /* 1=Polarity reversed */
  #define M88E1000_PSSR_DOWNSHIFT          0x0020 /* 1=Downshifted */
  #define M88E1000_PSSR_MDIX               0x0040 /* 1=MDIX; 0=MDI */
  /*
   * 0 = <50M
   * 1 = 50-80M
   * 2 = 80-110M
   * 3 = 110-140M
   * 4 = >140M
   */
  #define M88E1000_PSSR_CABLE_LENGTH       0x0380
  #define M88E1000_PSSR_LINK               0x0400 /* 1=Link up, 0=Link down */
  #define M88E1000_PSSR_SPD_DPLX_RESOLVED  0x0800 /* 1=Speed & Duplex resolved */
  #define M88E1000_PSSR_PAGE_RCVD          0x1000 /* 1=Page received */
  #define M88E1000_PSSR_DPLX               0x2000 /* 1=Duplex 0=Half Duplex */
  #define M88E1000_PSSR_SPEED              0xC000 /* Speed, bits 14:15 */
  #define M88E1000_PSSR_10MBS              0x0000 /* 00=10Mbs */
  #define M88E1000_PSSR_100MBS             0x4000 /* 01=100Mbs */
  #define M88E1000_PSSR_1000MBS            0x8000 /* 10=1000Mbs */
  
  #define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7
  
  /* M88E1000 Extended PHY Specific Control Register */
  #define M88E1000_EPSCR_FIBER_LOOPBACK 0x4000 /* 1=Fiber loopback */
  /*
   * 1 = Lost lock detect enabled.
   * Will assert lost lock and bring
   * link down if idle not seen
   * within 1ms in 1000BASE-T
   */
  #define M88E1000_EPSCR_DOWN_NO_IDLE   0x8000
  /*
   * Number of times we will attempt to autonegotiate before downshifting if we
   * are the master
   */
  #define M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK 0x0C00
  #define M88E1000_EPSCR_MASTER_DOWNSHIFT_1X   0x0000
  #define M88E1000_EPSCR_MASTER_DOWNSHIFT_2X   0x0400
  #define M88E1000_EPSCR_MASTER_DOWNSHIFT_3X   0x0800
  #define M88E1000_EPSCR_MASTER_DOWNSHIFT_4X   0x0C00
  /*
   * Number of times we will attempt to autonegotiate before downshifting if we
   * are the slave
   */
  #define M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK  0x0300
  #define M88E1000_EPSCR_SLAVE_DOWNSHIFT_DIS   0x0000
  #define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X    0x0100
  #define M88E1000_EPSCR_SLAVE_DOWNSHIFT_2X    0x0200
  #define M88E1000_EPSCR_SLAVE_DOWNSHIFT_3X    0x0300
  #define M88E1000_EPSCR_TX_CLK_2_5     0x0060 /* 2.5 MHz TX_CLK */
  #define M88E1000_EPSCR_TX_CLK_25      0x0070 /* 25  MHz TX_CLK */
  #define M88E1000_EPSCR_TX_CLK_0       0x0000 /* NO  TX_CLK */
  
  /* M88EC018 Rev 2 specific DownShift settings */
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK  0x0E00
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_1X    0x0000
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_2X    0x0200
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_3X    0x0400
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_4X    0x0600
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X    0x0800
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_6X    0x0A00
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_7X    0x0C00
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_8X    0x0E00
  
  /*
   * Bits...
   * 15-5: page
   * 4-0: register offset
   */
  #define GG82563_PAGE_SHIFT        5
  #define GG82563_REG(page, reg)    \
          (((page) << GG82563_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS))
  #define GG82563_MIN_ALT_REG       30
  
  /* GG82563 Specific Registers */
  #define GG82563_PHY_SPEC_CTRL           \
          GG82563_REG(0, 16) /* PHY Specific Control */
  #define GG82563_PHY_SPEC_STATUS         \
          GG82563_REG(0, 17) /* PHY Specific Status */
  #define GG82563_PHY_INT_ENABLE          \
          GG82563_REG(0, 18) /* Interrupt Enable */
  #define GG82563_PHY_SPEC_STATUS_2       \
          GG82563_REG(0, 19) /* PHY Specific Status 2 */
  #define GG82563_PHY_RX_ERR_CNTR         \
          GG82563_REG(0, 21) /* Receive Error Counter */
  #define GG82563_PHY_PAGE_SELECT         \
          GG82563_REG(0, 22) /* Page Select */
  #define GG82563_PHY_SPEC_CTRL_2         \
          GG82563_REG(0, 26) /* PHY Specific Control 2 */
  #define GG82563_PHY_PAGE_SELECT_ALT     \
          GG82563_REG(0, 29) /* Alternate Page Select */
  #define GG82563_PHY_TEST_CLK_CTRL       \
          GG82563_REG(0, 30) /* Test Clock Control (use reg. 29 to select) */
  
  #define GG82563_PHY_MAC_SPEC_CTRL       \
          GG82563_REG(2, 21) /* MAC Specific Control Register */
  #define GG82563_PHY_MAC_SPEC_CTRL_2     \
          GG82563_REG(2, 26) /* MAC Specific Control 2 */
  
  #define GG82563_PHY_DSP_DISTANCE    \
          GG82563_REG(5, 26) /* DSP Distance */
  
  /* Page 193 - Port Control Registers */
  #define GG82563_PHY_KMRN_MODE_CTRL   \
          GG82563_REG(193, 16) /* Kumeran Mode Control */
  #define GG82563_PHY_PORT_RESET          \
          GG82563_REG(193, 17) /* Port Reset */
  #define GG82563_PHY_REVISION_ID         \
          GG82563_REG(193, 18) /* Revision ID */
  #define GG82563_PHY_DEVICE_ID           \
          GG82563_REG(193, 19) /* Device ID */
  #define GG82563_PHY_PWR_MGMT_CTRL       \
          GG82563_REG(193, 20) /* Power Management Control */
  #define GG82563_PHY_RATE_ADAPT_CTRL     \
          GG82563_REG(193, 25) /* Rate Adaptation Control */
  
  /* Page 194 - KMRN Registers */
  #define GG82563_PHY_KMRN_FIFO_CTRL_STAT \
          GG82563_REG(194, 16) /* FIFO's Control/Status */
  #define GG82563_PHY_KMRN_CTRL           \
          GG82563_REG(194, 17) /* Control */
  #define GG82563_PHY_INBAND_CTRL         \
          GG82563_REG(194, 18) /* Inband Control */
  #define GG82563_PHY_KMRN_DIAGNOSTIC     \
          GG82563_REG(194, 19) /* Diagnostic */
  #define GG82563_PHY_ACK_TIMEOUTS        \
          GG82563_REG(194, 20) /* Acknowledge Timeouts */
  #define GG82563_PHY_ADV_ABILITY         \
          GG82563_REG(194, 21) /* Advertised Ability */
  #define GG82563_PHY_LINK_PARTNER_ADV_ABILITY \
          GG82563_REG(194, 23) /* Link Partner Advertised Ability */
  #define GG82563_PHY_ADV_NEXT_PAGE       \
          GG82563_REG(194, 24) /* Advertised Next Page */
  #define GG82563_PHY_LINK_PARTNER_ADV_NEXT_PAGE \
          GG82563_REG(194, 25) /* Link Partner Advertised Next page */
  #define GG82563_PHY_KMRN_MISC           \
          GG82563_REG(194, 26) /* Misc. */
  
  /* MDI Control */
  #define E1000_MDIC_DATA_MASK 0x0000FFFF
  #define E1000_MDIC_REG_MASK  0x001F0000
  #define E1000_MDIC_REG_SHIFT 16
  #define E1000_MDIC_PHY_MASK  0x03E00000
  #define E1000_MDIC_PHY_SHIFT 21
  #define E1000_MDIC_OP_WRITE  0x04000000
  #define E1000_MDIC_OP_READ   0x08000000
  #define E1000_MDIC_READY     0x10000000
  #define E1000_MDIC_INT_EN    0x20000000
  #define E1000_MDIC_ERROR     0x40000000
  
  /* SerDes Control */
  #define E1000_GEN_CTL_READY             0x80000000
  #define E1000_GEN_CTL_ADDRESS_SHIFT     8
  #define E1000_GEN_POLL_TIMEOUT          640
  
  #define UNREFERENCED_PARAMETER(_p)
  #endif

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