tigon3.h

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#else /* BIG_ENDIAN_HOST */
	    T3_16BIT_REGISTER Flags;
	    T3_16BIT_REGISTER MaxLen;
#endif
	} s;

	T3_32BIT_REGISTER MaxLen_Flags;
    } u;

    T3_32BIT_REGISTER NicRingAddr;
} T3_RCB, *PT3_RCB;

#define T3_RCB_FLAG_USE_EXT_RECV_BD                     BIT_0
#define T3_RCB_FLAG_RING_DISABLED                       BIT_1


/******************************************************************************/
/* Status block. */
/******************************************************************************/

/*
 * Size of status block is actually 0x50 bytes.  Use 0x80 bytes for
 * cache line alignment.
 */
#define T3_STATUS_BLOCK_SIZE                                    0x80

typedef struct {
    volatile LM_UINT32 Status;
    #define STATUS_BLOCK_UPDATED                                BIT_0
    #define STATUS_BLOCK_LINK_CHANGED_STATUS                    BIT_1
    #define STATUS_BLOCK_ERROR                                  BIT_2

    volatile LM_UINT32 StatusTag;

#ifdef BIG_ENDIAN_HOST
    volatile LM_UINT16 RcvStdConIdx;
    volatile LM_UINT16 RcvJumboConIdx;

    volatile LM_UINT16 Reserved2;
    volatile LM_UINT16 RcvMiniConIdx;

    struct {
	volatile LM_UINT16 SendConIdx;   /* Send consumer index. */
	volatile LM_UINT16 RcvProdIdx;   /* Receive producer index. */
    } Idx[16];
#else /* BIG_ENDIAN_HOST */
    volatile LM_UINT16 RcvJumboConIdx;
    volatile LM_UINT16 RcvStdConIdx;

    volatile LM_UINT16 RcvMiniConIdx;
    volatile LM_UINT16 Reserved2;

    struct {
	volatile LM_UINT16 RcvProdIdx;   /* Receive producer index. */
	volatile LM_UINT16 SendConIdx;   /* Send consumer index. */
    } Idx[16];
#endif
} T3_STATUS_BLOCK, *PT3_STATUS_BLOCK;


/******************************************************************************/
/* Receive buffer descriptors. */
/******************************************************************************/

typedef struct {
    T3_64BIT_HOST_ADDR HostAddr;

#ifdef BIG_ENDIAN_HOST
    volatile LM_UINT16 Index;
    volatile LM_UINT16 Len;

    volatile LM_UINT16 Type;
    volatile LM_UINT16 Flags;

    volatile LM_UINT16 IpCksum;
    volatile LM_UINT16 TcpUdpCksum;

    volatile LM_UINT16 ErrorFlag;
    volatile LM_UINT16 VlanTag;
#else /* BIG_ENDIAN_HOST */
    volatile LM_UINT16 Len;
    volatile LM_UINT16 Index;

    volatile LM_UINT16 Flags;
    volatile LM_UINT16 Type;

    volatile LM_UINT16 TcpUdpCksum;
    volatile LM_UINT16 IpCksum;

    volatile LM_UINT16 VlanTag;
    volatile LM_UINT16 ErrorFlag;
#endif

    volatile LM_UINT32 Reserved;
    volatile LM_UINT32 Opaque;
} T3_RCV_BD, *PT3_RCV_BD;


typedef struct {
    T3_64BIT_HOST_ADDR HostAddr[3];

#ifdef BIG_ENDIAN_HOST
    LM_UINT16 Len1;
    LM_UINT16 Len2;

    LM_UINT16 Len3;
    LM_UINT16 Reserved1;
#else /* BIG_ENDIAN_HOST */
    LM_UINT16 Len2;
    LM_UINT16 Len1;

    LM_UINT16 Reserved1;
    LM_UINT16 Len3;
#endif

    T3_RCV_BD StdRcvBd;
} T3_EXT_RCV_BD, *PT3_EXT_RCV_BD;


/* Error flags. */
#define RCV_BD_ERR_BAD_CRC                          0x0001
#define RCV_BD_ERR_COLL_DETECT                      0x0002
#define RCV_BD_ERR_LINK_LOST_DURING_PKT             0x0004
#define RCV_BD_ERR_PHY_DECODE_ERR                   0x0008
#define RCV_BD_ERR_ODD_NIBBLED_RCVD_MII             0x0010
#define RCV_BD_ERR_MAC_ABORT                        0x0020
#define RCV_BD_ERR_LEN_LT_64                        0x0040
#define RCV_BD_ERR_TRUNC_NO_RESOURCES               0x0080
#define RCV_BD_ERR_GIANT_FRAME_RCVD                 0x0100


/* Buffer descriptor flags. */
#define RCV_BD_FLAG_END                             0x0004
#define RCV_BD_FLAG_JUMBO_RING                      0x0020
#define RCV_BD_FLAG_VLAN_TAG                        0x0040
#define RCV_BD_FLAG_FRAME_HAS_ERROR                 0x0400
#define RCV_BD_FLAG_MINI_RING                       0x0800
#define RCV_BD_FLAG_IP_CHKSUM_FIELD                 0x1000
#define RCV_BD_FLAG_TCP_UDP_CHKSUM_FIELD            0x2000
#define RCV_BD_FLAG_TCP_PACKET                      0x4000


/******************************************************************************/
/* Send buffer descriptor. */
/******************************************************************************/

typedef struct {
    T3_64BIT_HOST_ADDR HostAddr;

    union {
	struct {
#ifdef BIG_ENDIAN_HOST
	    LM_UINT16 Len;
	    LM_UINT16 Flags;
#else /* BIG_ENDIAN_HOST */
	    LM_UINT16 Flags;
	    LM_UINT16 Len;
#endif
	} s1;

	LM_UINT32 Len_Flags;
    } u1;

    union {
	struct {
#ifdef BIG_ENDIAN_HOST
	    LM_UINT16 Reserved;
	    LM_UINT16 VlanTag;
#else /* BIG_ENDIAN_HOST */
	    LM_UINT16 VlanTag;
	    LM_UINT16 Reserved;
#endif
	} s2;

	LM_UINT32 VlanTag;
    } u2;
} T3_SND_BD, *PT3_SND_BD;


/* Send buffer descriptor flags. */
#define SND_BD_FLAG_TCP_UDP_CKSUM                   0x0001
#define SND_BD_FLAG_IP_CKSUM                        0x0002
#define SND_BD_FLAG_END                             0x0004
#define SND_BD_FLAG_IP_FRAG                         0x0008
#define SND_BD_FLAG_IP_FRAG_END                     0x0010
#define SND_BD_FLAG_VLAN_TAG                        0x0040
#define SND_BD_FLAG_COAL_NOW                        0x0080
#define SND_BD_FLAG_CPU_PRE_DMA                     0x0100
#define SND_BD_FLAG_CPU_POST_DMA                    0x0200
#define SND_BD_FLAG_INSERT_SRC_ADDR                 0x1000
#define SND_BD_FLAG_CHOOSE_SRC_ADDR                 0x6000
#define SND_BD_FLAG_DONT_GEN_CRC                    0x8000

/* MBUFs */
typedef struct T3_MBUF_FRAME_DESC {
#ifdef BIG_ENDIAN_HOST
  LM_UINT32 status_control;
  union {
    struct {
      LM_UINT8 cqid;
      LM_UINT8 reserved1;
      LM_UINT16 length;
    }s1;
    LM_UINT32 word;
  }u1;
  union {
    struct
    {
      LM_UINT16 ip_hdr_start;
      LM_UINT16 tcp_udp_hdr_start;
    }s2;

    LM_UINT32 word;
  }u2;

  union {
    struct {
      LM_UINT16 data_start;
      LM_UINT16 vlan_id;
    }s3;

    LM_UINT32 word;
  }u3;

  union {
    struct {
      LM_UINT16 ip_checksum;
      LM_UINT16 tcp_udp_checksum;
    }s4;

    LM_UINT32 word;
  }u4;

  union {
    struct {
      LM_UINT16 pseudo_checksum;
      LM_UINT16 checksum_status;
    }s5;

    LM_UINT32 word;
  }u5;

  union {
    struct {
      LM_UINT16 rule_match;
      LM_UINT8 class;
      LM_UINT8 rupt;
    }s6;

    LM_UINT32 word;
  }u6;

  union {
    struct {
      LM_UINT16 reserved2;
      LM_UINT16 mbuf_num;
    }s7;

    LM_UINT32 word;
  }u7;

  LM_UINT32 reserved3;
  LM_UINT32 reserved4;
#else
  LM_UINT32 status_control;
  union {
    struct {
      LM_UINT16 length;
      LM_UINT8  reserved1;
      LM_UINT8  cqid;
    }s1;
    LM_UINT32 word;
  }u1;
  union {
    struct
    {
      LM_UINT16 tcp_udp_hdr_start;
      LM_UINT16 ip_hdr_start;
    }s2;

    LM_UINT32 word;
  }u2;

  union {
    struct {
      LM_UINT16 vlan_id;
      LM_UINT16 data_start;
    }s3;

    LM_UINT32 word;
  }u3;

  union {
    struct {
      LM_UINT16 tcp_udp_checksum;
      LM_UINT16 ip_checksum;
    }s4;

    LM_UINT32 word;
  }u4;

  union {
    struct {
      LM_UINT16 checksum_status;
      LM_UINT16 pseudo_checksum;
    }s5;

    LM_UINT32 word;
  }u5;

  union {
    struct {
      LM_UINT8 rupt;
      LM_UINT8 class;
      LM_UINT16 rule_match;
    }s6;

    LM_UINT32 word;
  }u6;

  union {
    struct {
      LM_UINT16 mbuf_num;
      LM_UINT16 reserved2;
    }s7;

    LM_UINT32 word;
  }u7;

  LM_UINT32 reserved3;
  LM_UINT32 reserved4;
#endif
}T3_MBUF_FRAME_DESC,*PT3_MBUF_FRAME_DESC;

typedef struct T3_MBUF_HDR {
  union {
    struct {
      unsigned int C:1;
      unsigned int F:1;
      unsigned int reserved1:7;
      unsigned int next_mbuf:16;
      unsigned int length:7;
    }s1;

    LM_UINT32 word;
  }u1;

  LM_UINT32 next_frame_ptr;
}T3_MBUF_HDR, *PT3_MBUF_HDR;

typedef struct T3_MBUF
{
  T3_MBUF_HDR hdr;
  union
  {
    struct {
      T3_MBUF_FRAME_DESC frame_hdr;
      LM_UINT32 data[20];
    }s1;

    struct {
      LM_UINT32 data[30];
    }s2;
  }body;
}T3_MBUF, *PT3_MBUF;

#define T3_MBUF_BASE   (T3_NIC_MBUF_POOL_ADDR >> 7)
#define T3_MBUF_END    ((T3_NIC_MBUF_POOL_ADDR + T3_NIC_MBUF_POOL_SIZE) >> 7)