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/******************************************************************************

             Device driver for Interphase ATM PCI adapter cards

                    Author: Peter Wang  <pwang@iphase.com>

                   Interphase Corporation  <www.iphase.com>

                               Version: 1.0

               iphase.h:  This is the header file for iphase.c.

*******************************************************************************

      This software may be used and distributed according to the terms

      of the GNU General Public License (GPL), incorporated herein by reference.

      Drivers based on this skeleton fall under the GPL and must retain

      the authorship (implicit copyright) notice.

      This program is distributed in the hope that it will be useful, but

      WITHOUT ANY WARRANTY; without even the implied warranty of

      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

      General Public License for more details.

      Modified from an incomplete driver for Interphase 5575 1KVC 1M card which

      was originally written by Monalisa Agrawal at UNH. Now this driver

      supports a variety of varients of Interphase ATM PCI (i)Chip adapter

      card family (See www.iphase.com/products/ClassSheet.cfm?ClassID=ATM)

      in terms of PHY type, the size of control memory and the size of

      packet memory. The followings are the change log and history:

          Bugfix the Mona's UBR driver.

          Modify the basic memory allocation and dma logic.

          Port the driver to the latest kernel from 2.0.46.

          Complete the ABR logic of the driver, and added the ABR work-

              around for the hardware anormalies.

          Add the CBR support.

          Add the flow control logic to the driver to allow rate-limit VC.

          Add 4K VC support to the board with 512K control memory.

          Add the support of all the variants of the Interphase ATM PCI

          (i)Chip adapter cards including x575 (155M OC3 and UTP155), x525

          (25M UTP25) and x531 (DS3 and E3).

          Add SMP support.

      Support and updates available at: ftp://ftp.iphase.com/pub/atm

*******************************************************************************/

#ifndef IPHASE_H  

#define IPHASE_H  

#include <linux/config.h>

/************************ IADBG DEFINE *********************************/

/* IADebugFlag Bit Map */

#define IF_IADBG_INIT_ADAPTER   0x00000001        // init adapter info

#define IF_IADBG_TX             0x00000002        // debug TX

#define IF_IADBG_RX             0x00000004        // debug RX

#define IF_IADBG_QUERY_INFO     0x00000008        // debug Request call

#define IF_IADBG_SHUTDOWN       0x00000010        // debug shutdown event

#define IF_IADBG_INTR           0x00000020        // debug interrupt DPC

#define IF_IADBG_TXPKT          0x00000040        // debug TX PKT

#define IF_IADBG_RXPKT          0x00000080        // debug RX PKT

#define IF_IADBG_ERR            0x00000100        // debug system error

#define IF_IADBG_EVENT          0x00000200        // debug event

#define IF_IADBG_DIS_INTR       0x00001000        // debug disable interrupt

#define IF_IADBG_EN_INTR        0x00002000        // debug enable interrupt

#define IF_IADBG_LOUD           0x00004000        // debugging info

#define IF_IADBG_VERY_LOUD      0x00008000        // excessive debugging info

#define IF_IADBG_CBR            0x00100000        //

#define IF_IADBG_UBR            0x00200000        //

#define IF_IADBG_ABR            0x00400000        //

#define IF_IADBG_DESC           0x01000000        //

#define IF_IADBG_SUNI_STAT      0x02000000        // suni statistics

#define IF_IADBG_RESET          0x04000000        

extern  unsigned int    IADebugFlag;

#define IF_IADBG(f) if (IADebugFlag & (f))

#ifdef  CONFIG_ATM_IA_DEBUG   /* Debug build */

#define IF_LOUD(A) IF_IADBG(IF_IADBG_LOUD) { A }

#define IF_ERR(A) IF_IADBG(IF_IADBG_ERR) { A }

#define IF_VERY_LOUD(A) IF_IADBG( IF_IADBG_VERY_LOUD ) { A }

#define IF_INIT_ADAPTER(A) IF_IADBG( IF_IADBG_INIT_ADAPTER ) { A }

#define IF_INIT(A) IF_IADBG( IF_IADBG_INIT_ADAPTER ) { A }

#define IF_SUNI_STAT(A) IF_IADBG( IF_IADBG_SUNI_STAT ) { A }

#define IF_QUERY_INFO(A) IF_IADBG( IF_IADBG_QUERY_INFO ) { A }

#define IF_COPY_OVER(A) IF_IADBG( IF_IADBG_COPY_OVER ) { A }

#define IF_INTR(A) IF_IADBG( IF_IADBG_INTR ) { A }

#define IF_DIS_INTR(A) IF_IADBG( IF_IADBG_DIS_INTR ) { A }

#define IF_EN_INTR(A) IF_IADBG( IF_IADBG_EN_INTR ) { A }

#define IF_TX(A) IF_IADBG( IF_IADBG_TX ) { A }

#define IF_RX(A) IF_IADBG( IF_IADBG_RX ) { A }

#define IF_TXPKT(A) IF_IADBG( IF_IADBG_TXPKT ) { A }

#define IF_RXPKT(A) IF_IADBG( IF_IADBG_RXPKT ) { A }

#define IF_SHUTDOWN(A) IF_IADBG(IF_IADBG_SHUTDOWN) { A }

#define IF_CBR(A) IF_IADBG( IF_IADBG_CBR ) { A }

#define IF_UBR(A) IF_IADBG( IF_IADBG_UBR ) { A }

#define IF_ABR(A) IF_IADBG( IF_IADBG_ABR ) { A }

#define IF_EVENT(A) IF_IADBG( IF_IADBG_EVENT) { A }

#else /* free build */

#define IF_LOUD(A)

#define IF_VERY_LOUD(A)

#define IF_INIT_ADAPTER(A)

#define IF_INIT(A)

#define IF_SUNI_STAT(A)

#define IF_PVC_CHKPKT(A)

#define IF_QUERY_INFO(A)

#define IF_COPY_OVER(A)

#define IF_HANG(A)

#define IF_INTR(A)

#define IF_DIS_INTR(A)

#define IF_EN_INTR(A)

#define IF_TX(A)

#define IF_RX(A)

#define IF_TXDEBUG(A)

#define IF_VC(A)

#define IF_ERR(A) 

#define IF_CBR(A)

#define IF_UBR(A)

#define IF_ABR(A)

#define IF_SHUTDOWN(A)

#define DbgPrint(A)

#define IF_EVENT(A)

#define IF_TXPKT(A) 

#define IF_RXPKT(A)

#endif /* CONFIG_ATM_IA_DEBUG */ 

#define isprint(a) ((a >=' ')&&(a <= '~'))  

#define ATM_DESC(skb) (skb->protocol)

#define IA_SKB_STATE(skb) (skb->protocol)

#define IA_DLED   1

#define IA_TX_DONE 2

/* iadbg defines */

#define IA_CMD   0x7749

typedef struct {

        int cmd;

        int sub_cmd;

        int len;

        u32 maddr;

        int status;

        void *buf;

} IA_CMDBUF, *PIA_CMDBUF;

/* cmds */

#define MEMDUMP                 0x01

/* sub_cmds */

#define MEMDUMP_SEGREG          0x2

#define MEMDUMP_DEV             0x1

#define MEMDUMP_REASSREG        0x3

#define MEMDUMP_FFL             0x4

#define READ_REG                0x5

#define WAKE_DBG_WAIT           0x6

/************************ IADBG DEFINE END ***************************/

#define Boolean(x)      ((x) ? 1 : 0)

#define NR_VCI 1024             /* number of VCIs */  

#define NR_VCI_LD 10            /* log2(NR_VCI) */  

#define NR_VCI_4K 4096          /* number of VCIs */  

#define NR_VCI_4K_LD 12         /* log2(NR_VCI) */  

#define MEM_VALID 0xfffffff0    /* mask base address with this */  

#ifndef PCI_VENDOR_ID_IPHASE  

#define PCI_VENDOR_ID_IPHASE 0x107e  

#endif  

#ifndef PCI_DEVICE_ID_IPHASE_5575  

#define PCI_DEVICE_ID_IPHASE_5575 0x0008  

#endif  

#define DEV_LABEL       "ia"  

#define PCR     207692  

#define ICR     100000  

#define MCR     0  

#define TBE     1000  

#define FRTT    1  

#define RIF     2                 

#define RDF     4  

#define NRMCODE 5       /* 0 - 7 */  

#define TRMCODE 3       /* 0 - 7 */  

#define CDFCODE 6  

#define ATDFCODE 2      /* 0 - 15 */  

/*---------------------- Packet/Cell Memory ------------------------*/

#define TX_PACKET_RAM   0x00000 /* start of Trasnmit Packet memory - 0 */  

#define DFL_TX_BUF_SZ   10240   /* 10 K buffers */  

#define DFL_TX_BUFFERS     50   /* number of packet buffers for Tx   

                                        - descriptor 0 unused */

#define REASS_RAM_SIZE 0x10000  /* for 64K 1K VC board */  

#define RX_PACKET_RAM   0x80000 /* start of Receive Packet memory - 512K */  

#define DFL_RX_BUF_SZ   10240   /* 10k buffers */  

#define DFL_RX_BUFFERS      50  /* number of packet buffers for Rx   

                                        - descriptor 0 unused */

struct cpcs_trailer

{

        u_short control;

        u_short length;

        u_int   crc32;

};

struct cpcs_trailer_desc

{

        struct cpcs_trailer *cpcs;

        dma_addr_t dma_addr;

};

struct ia_vcc

{

        int rxing;

        int txing;

        int NumCbrEntry;

        u32 pcr;

        u32 saved_tx_quota;

        int flow_inc;

        struct sk_buff_head txing_skb;

        int  ltimeout;

        u8  vc_desc_cnt;

};

struct abr_vc_table

{

        u_char status;

        u_char rdf;

        u_short air;

        u_int res[3];

        u_int req_rm_cell_data1;

        u_int req_rm_cell_data2;

        u_int add_rm_cell_data1;

        u_int add_rm_cell_data2;

};

/* 32 byte entries */

struct main_vc

{

        u_short         type;

#define ABR     0x8000  

#define UBR     0xc000  

#define CBR     0x0000  

        /* ABR fields */

        u_short         nrm;

        u_short         trm;

        u_short         rm_timestamp_hi;

        u_short         rm_timestamp_lo:8,

                        crm:8;

        u_short         remainder;      /* ABR and UBR fields - last 10 bits*/

        u_short         next_vc_sched;

        u_short         present_desc;   /* all classes */

        u_short         last_cell_slot; /* ABR and UBR */

        u_short         pcr;

        u_short         fraction;

        u_short         icr;

        u_short         atdf;

        u_short         mcr;

        u_short         acr;

        u_short         unack:8,

                        status:8;       /* all classes */

#define UIOLI 0x80  

#define CRC_APPEND 0x40                 /* for status field - CRC-32 append */  

#define ABR_STATE 0x02  

};

/* 8 byte entries */

struct ext_vc

{

        u_short         atm_hdr1;

        u_short         atm_hdr2;

        u_short         last_desc;

        u_short         out_of_rate_link;   /* reserved for UBR and CBR */

};

#define DLE_ENTRIES 256  

#define DMA_INT_ENABLE 0x0002   /* use for both Tx and Rx */  

#define TX_DLE_PSI 0x0001  

#define DLE_TOTAL_SIZE (sizeof(struct dle)*DLE_ENTRIES)

/* Descriptor List Entries (DLE) */

struct dle

{

        u32     sys_pkt_addr;

        u32     local_pkt_addr;

        u32     bytes;

        u16     prq_wr_ptr_data;

        u16     mode;

};

struct dle_q

{

        struct dle      *start;

        struct dle      *end;

        struct dle      *read;

        struct dle      *write;

};

struct free_desc_q

{

        int     desc;   /* Descriptor number */

        struct free_desc_q *next;

};

struct tx_buf_desc {

        unsigned short desc_mode;

        unsigned short vc_index;

        unsigned short res1;            /* reserved field */

        unsigned short bytes;

        unsigned short buf_start_hi;

        unsigned short buf_start_lo;

        unsigned short res2[10];        /* reserved field */

};

struct rx_buf_desc {

        unsigned short desc_mode;

        unsigned short vc_index;

        unsigned short vpi;

        unsigned short bytes;

        unsigned short buf_start_hi;

        unsigned short buf_start_lo;

        unsigned short dma_start_hi;

        unsigned short dma_start_lo;

        unsigned short crc_upper;

        unsigned short crc_lower;

        unsigned short res:8, timeout:8;

        unsigned short res2[5]; /* reserved field */

};

/*--------SAR stuff ---------------------*/

#define EPROM_SIZE 0x40000      /* says 64K in the docs ??? */  

#define MAC1_LEN        4                                                 

#define MAC2_LEN        2  

/*------------ PCI Memory Space Map, 128K SAR memory ----------------*/

#define IPHASE5575_PCI_CONFIG_REG_BASE  0x0000  

#define IPHASE5575_BUS_CONTROL_REG_BASE 0x1000  /* offsets 0x00 - 0x3c */  

#define IPHASE5575_FRAG_CONTROL_REG_BASE 0x2000  

#define IPHASE5575_REASS_CONTROL_REG_BASE 0x3000  

#define IPHASE5575_DMA_CONTROL_REG_BASE 0x4000  

#define IPHASE5575_FRONT_END_REG_BASE IPHASE5575_DMA_CONTROL_REG_BASE  

#define IPHASE5575_FRAG_CONTROL_RAM_BASE 0x10000  

#define IPHASE5575_REASS_CONTROL_RAM_BASE 0x20000  

/*------------ Bus interface control registers -----------------*/

#define IPHASE5575_BUS_CONTROL_REG      0x00  

#define IPHASE5575_BUS_STATUS_REG       0x01    /* actual offset 0x04 */  

#define IPHASE5575_MAC1                 0x02  

#define IPHASE5575_REV                  0x03  

#define IPHASE5575_MAC2                 0x03    /*actual offset 0x0e-reg 0x0c*/  

#define IPHASE5575_EXT_RESET            0x04  

#define IPHASE5575_INT_RESET            0x05    /* addr 1c ?? reg 0x06 */  

#define IPHASE5575_PCI_ADDR_PAGE        0x07    /* reg 0x08, 0x09 ?? */  

#define IPHASE5575_EEPROM_ACCESS        0x0a    /* actual offset 0x28 */  

#define IPHASE5575_CELL_FIFO_QUEUE_SZ   0x0b  

#define IPHASE5575_CELL_FIFO_MARK_STATE 0x0c  

#define IPHASE5575_CELL_FIFO_READ_PTR   0x0d  

#define IPHASE5575_CELL_FIFO_WRITE_PTR  0x0e  

#define IPHASE5575_CELL_FIFO_CELLS_AVL  0x0f    /* actual offset 0x3c */  

/* Bus Interface Control Register bits */

#define CTRL_FE_RST     0x80000000  

#define CTRL_LED        0x40000000  

#define CTRL_25MBPHY    0x10000000  

#define CTRL_ENCMBMEM   0x08000000  

#define CTRL_ENOFFSEG   0x01000000  

#define CTRL_ERRMASK    0x00400000  

#define CTRL_DLETMASK   0x00100000  

#define CTRL_DLERMASK   0x00080000  

#define CTRL_FEMASK     0x00040000  

#define CTRL_SEGMASK    0x00020000  

#define CTRL_REASSMASK  0x00010000  

#define CTRL_CSPREEMPT  0x00002000  

#define CTRL_B128       0x00000200  

#define CTRL_B64        0x00000100  

#define CTRL_B48        0x00000080  

#define CTRL_B32        0x00000040  

#define CTRL_B16        0x00000020  

#define CTRL_B8         0x00000010  

/* Bus Interface Status Register bits */

#define STAT_CMEMSIZ    0xc0000000  

#define STAT_ADPARCK    0x20000000  

#define STAT_RESVD      0x1fffff80  

#define STAT_ERRINT     0x00000040  

#define STAT_MARKINT    0x00000020  

#define STAT_DLETINT    0x00000010  

#define STAT_DLERINT    0x00000008  

#define STAT_FEINT      0x00000004  

#define STAT_SEGINT     0x00000002  

#define STAT_REASSINT   0x00000001  

/*--------------- Segmentation control registers -----------------*/

/* The segmentation registers are 16 bits access and the addresses

        are defined as such so the addresses are the actual "offsets" */

#define IDLEHEADHI      0x00  

#define IDLEHEADLO      0x01  

#define MAXRATE         0x02  

/* Values for MAXRATE register for 155Mbps and 25.6 Mbps operation */

#define RATE155         0x64b1 // 16 bits float format 

#define MAX_ATM_155     352768 // Cells/second p.118

#define RATE25          0x5f9d  

#define STPARMS         0x03  

#define STPARMS_1K      0x008c  

#define STPARMS_2K      0x0049  

#define STPARMS_4K      0x0026  

#define COMP_EN         0x4000  

#define CBR_EN          0x2000  

#define ABR_EN          0x0800  

#define UBR_EN          0x0400  

#define ABRUBR_ARB      0x04  

#define RM_TYPE         0x05  

/*Value for RM_TYPE register for ATM Forum Traffic Mangement4.0 support*/

#define RM_TYPE_4_0     0x0100  

#define SEG_COMMAND_REG         0x17  

/* Values for the command register */

#define RESET_SEG 0x0055  

#define RESET_SEG_STATE 0x00aa  

#define RESET_TX_CELL_CTR 0x00cc  

#define CBR_PTR_BASE    0x20  

#define ABR_SBPTR_BASE  0x22  

#define UBR_SBPTR_BASE  0x23  

#define ABRWQ_BASE      0x26  

#define UBRWQ_BASE      0x27  

#define VCT_BASE        0x28  

#define VCTE_BASE       0x29  

#define CBR_TAB_BEG     0x2c  

#define CBR_TAB_END     0x2d  

#define PRQ_ST_ADR      0x30  

#define PRQ_ED_ADR      0x31  

#define PRQ_RD_PTR      0x32  

#define PRQ_WR_PTR      0x33  

#define TCQ_ST_ADR      0x34  

#define TCQ_ED_ADR      0x35  

#define TCQ_RD_PTR      0x36  

#define TCQ_WR_PTR      0x37  

#define SEG_QUEUE_BASE  0x40  

#define SEG_DESC_BASE   0x41  

#define MODE_REG_0      0x45  

#define T_ONLINE        0x0002          /* (i)chipSAR is online */  

#define MODE_REG_1      0x46  

#define MODE_REG_1_VAL  0x0400          /*for propoer device operation*/  

#define SEG_INTR_STATUS_REG 0x47  

#define SEG_MASK_REG    0x48  

#define TRANSMIT_DONE 0x0200

#define TCQ_NOT_EMPTY 0x1000    /* this can be used for both the interrupt   

                                status registers as well as the mask register */

#define CELL_CTR_HIGH_AUTO 0x49  

#define CELL_CTR_HIGH_NOAUTO 0xc9  

#define CELL_CTR_LO_AUTO 0x4a  

#define CELL_CTR_LO_NOAUTO 0xca  

/* Diagnostic registers */

#define NEXTDESC        0x59  

#define NEXTVC          0x5a  

#define PSLOTCNT        0x5d  

#define NEWDN           0x6a  

#define NEWVC           0x6b  

#define SBPTR           0x6c  

#define ABRWQ_WRPTR     0x6f  

#define ABRWQ_RDPTR     0x70  

#define UBRWQ_WRPTR     0x71  

#define UBRWQ_RDPTR     0x72  

#define CBR_VC          0x73  

#define ABR_SBVC        0x75  

#define UBR_SBVC        0x76  

#define ABRNEXTLINK     0x78  

#define UBRNEXTLINK     0x79  

/*----------------- Reassembly control registers ---------------------*/

/* The reassembly registers are 16 bits access and the addresses

        are defined as such so the addresses are the actual "offsets" */

#define MODE_REG        0x00  

#define R_ONLINE        0x0002          /* (i)chip is online */  

#define IGN_RAW_FL      0x0004

#define PROTOCOL_ID     0x01  

#define REASS_MASK_REG  0x02  

#define REASS_INTR_STATUS_REG   0x03  

/* Interrupt Status register bits */

#define RX_PKT_CTR_OF   0x8000  

#define RX_ERR_CTR_OF   0x4000  

#define RX_CELL_CTR_OF  0x1000  

#define RX_FREEQ_EMPT   0x0200  

#define RX_EXCPQ_FL     0x0080  

#define RX_RAWQ_FL      0x0010  

#define RX_EXCP_RCVD    0x0008  

#define RX_PKT_RCVD     0x0004  

#define RX_RAW_RCVD     0x0001  

#define DRP_PKT_CNTR    0x04  

#define ERR_CNTR        0x05  

#define RAW_BASE_ADR    0x08  

#define CELL_CTR0       0x0c  

#define CELL_CTR1       0x0d  

#define REASS_COMMAND_REG       0x0f  

/* Values for command register */

#define RESET_REASS     0x0055  

#define RESET_REASS_STATE 0x00aa  

#define RESET_DRP_PKT_CNTR 0x00f1  

#define RESET_ERR_CNTR  0x00f2  

#define RESET_CELL_CNTR 0x00f8  

#define RESET_REASS_ALL_REGS 0x00ff  

#define REASS_DESC_BASE 0x10  

#define VC_LKUP_BASE    0x11  

#define REASS_TABLE_BASE 0x12  

#define REASS_QUEUE_BASE 0x13  

#define PKT_TM_CNT      0x16  

#define TMOUT_RANGE     0x17  

#define INTRVL_CNTR     0x18  

#define TMOUT_INDX      0x19  

#define VP_LKUP_BASE    0x1c  

#define VP_FILTER       0x1d  

#define ABR_LKUP_BASE   0x1e  

#define FREEQ_ST_ADR    0x24  

#define FREEQ_ED_ADR    0x25  

#define FREEQ_RD_PTR    0x26  

#define FREEQ_WR_PTR    0x27  

#define PCQ_ST_ADR      0x28  

#define PCQ_ED_ADR      0x29  

#define PCQ_RD_PTR      0x2a  

#define PCQ_WR_PTR      0x2b  

#define EXCP_Q_ST_ADR   0x2c  

#define EXCP_Q_ED_ADR   0x2d  

#define EXCP_Q_RD_PTR   0x2e  

#define EXCP_Q_WR_PTR   0x2f  

#define CC_FIFO_ST_ADR  0x34  

#define CC_FIFO_ED_ADR  0x35  

#define CC_FIFO_RD_PTR  0x36  

#define CC_FIFO_WR_PTR  0x37  

#define STATE_REG       0x38  

#define BUF_SIZE        0x42  

#define XTRA_RM_OFFSET  0x44  

#define DRP_PKT_CNTR_NC 0x84  

#define ERR_CNTR_NC     0x85  

#define CELL_CNTR0_NC   0x8c  

#define CELL_CNTR1_NC   0x8d  

/* State Register bits */

#define EXCPQ_EMPTY     0x0040  

#define PCQ_EMPTY       0x0010  

#define FREEQ_EMPTY     0x0004  

/*----------------- Front End registers/ DMA control --------------*/

/* There is a lot of documentation error regarding these offsets ???

        eg:- 2 offsets given 800, a00 for rx counter

        similarly many others

   Remember again that the offsets are to be 4*register number, so

        correct the #defines here

*/

#define IPHASE5575_TX_COUNTER           0x200   /* offset - 0x800 */  

#define IPHASE5575_RX_COUNTER           0x280   /* offset - 0xa00 */  

#define IPHASE5575_TX_LIST_ADDR         0x300   /* offset - 0xc00 */  

#define IPHASE5575_RX_LIST_ADDR         0x380   /* offset - 0xe00 */  

/*--------------------------- RAM ---------------------------*/

/* These memory maps are actually offsets from the segmentation and reassembly  RAM base addresses */

/* Segmentation Control Memory map */

#define TX_DESC_BASE    0x0000  /* Buffer Decriptor Table */  

#define TX_COMP_Q       0x1000  /* Transmit Complete Queue */  

#define PKT_RDY_Q       0x1400  /* Packet Ready Queue */  

#define CBR_SCHED_TABLE 0x1800  /* CBR Table */  

#define UBR_SCHED_TABLE 0x3000  /* UBR Table */  

#define UBR_WAIT_Q      0x4000  /* UBR Wait Queue */  

#define ABR_SCHED_TABLE 0x5000  /* ABR Table */  

#define ABR_WAIT_Q      0x5800  /* ABR Wait Queue */  

#define EXT_VC_TABLE    0x6000  /* Extended VC Table */  

#define MAIN_VC_TABLE   0x8000  /* Main VC Table */  

#define SCHEDSZ         1024    /* ABR and UBR Scheduling Table size */  

#define TX_DESC_TABLE_SZ 128    /* Number of entries in the Transmit   

                                        Buffer Descriptor Table */

/* These are used as table offsets in Descriptor Table address generation */

#define DESC_MODE       0x0  

#define VC_INDEX        0x1  

#define BYTE_CNT        0x3  

#define PKT_START_HI    0x4  

#define PKT_START_LO    0x5  

/* Descriptor Mode Word Bits */

#define EOM_EN  0x0800  

#define AAL5    0x0100  

#define APP_CRC32 0x0400  

#define CMPL_INT  0x1000

#define TABLE_ADDRESS(db, dn, to) \

        (((unsigned long)(db & 0x04)) << 16) | (dn << 5) | (to << 1)

/* Reassembly Control Memory Map */

#define RX_DESC_BASE    0x0000  /* Buffer Descriptor Table */  

#define VP_TABLE        0x5c00  /* VP Table */  

#define EXCEPTION_Q     0x5e00  /* Exception Queue */  

#define FREE_BUF_DESC_Q 0x6000  /* Free Buffer Descriptor Queue */  

#define PKT_COMP_Q      0x6800  /* Packet Complete Queue */  

#define REASS_TABLE     0x7000  /* Reassembly Table */  

#define RX_VC_TABLE     0x7800  /* VC Table */  

#define ABR_VC_TABLE    0x8000  /* ABR VC Table */  

#define RX_DESC_TABLE_SZ 736    /* Number of entries in the Receive   

                                        Buffer Descriptor Table */

#define VP_TABLE_SZ     256      /* Number of entries in VPTable */   

#define RX_VC_TABLE_SZ  1024    /* Number of entries in VC Table */   

#define REASS_TABLE_SZ  1024    /* Number of entries in Reassembly Table */  

 /* Buffer Descriptor Table */

#define RX_ACT  0x8000  

#define RX_VPVC 0x4000  

#define RX_CNG  0x0040  

#define RX_CER  0x0008  

#define RX_PTE  0x0004  

#define RX_OFL  0x0002  

#define NUM_RX_EXCP   32

/* Reassembly Table */

#define NO_AAL5_PKT     0x0000  

#define AAL5_PKT_REASSEMBLED 0x4000  

#define AAL5_PKT_TERMINATED 0x8000  

#define RAW_PKT         0xc000  

#define REASS_ABR       0x2000  

/*-------------------- Base Registers --------------------*/

#define REG_BASE IPHASE5575_BUS_CONTROL_REG_BASE  

#define RAM_BASE IPHASE5575_FRAG_CONTROL_RAM_BASE  

#define PHY_BASE IPHASE5575_FRONT_END_REG_BASE  

#define SEG_BASE IPHASE5575_FRAG_CONTROL_REG_BASE  

#define REASS_BASE IPHASE5575_REASS_CONTROL_REG_BASE  

typedef volatile u_int  freg_t;

typedef u_int   rreg_t;

typedef struct _ffredn_t {

        freg_t  idlehead_high;  /* Idle cell header (high)              */

        freg_t  idlehead_low;   /* Idle cell header (low)               */

        freg_t  maxrate;        /* Maximum rate                         */

        freg_t  stparms;        /* Traffic Management Parameters        */

        freg_t  abrubr_abr;     /* ABRUBR Priority Byte 1, TCR Byte 0   */

        freg_t  rm_type;        /*                                      */

        u_int   filler5[0x17 - 0x06];

        freg_t  cmd_reg;        /* Command register                     */

        u_int   filler18[0x20 - 0x18];

        freg_t  cbr_base;       /* CBR Pointer Base                     */

        freg_t  vbr_base;       /* VBR Pointer Base                     */

        freg_t  abr_base;       /* ABR Pointer Base                     */

        freg_t  ubr_base;       /* UBR Pointer Base                     */

        u_int   filler24;

        freg_t  vbrwq_base;     /* VBR Wait Queue Base                  */

        freg_t  abrwq_base;     /* ABR Wait Queue Base                  */

        freg_t  ubrwq_base;     /* UBR Wait Queue Base                  */

        freg_t  vct_base;       /* Main VC Table Base                   */

        freg_t  vcte_base;      /* Extended Main VC Table Base          */

        u_int   filler2a[0x2C - 0x2A];

        freg_t  cbr_tab_beg;    /* CBR Table Begin                      */

        freg_t  cbr_tab_end;    /* CBR Table End                        */

        freg_t  cbr_pointer;    /* CBR Pointer                          */

        u_int   filler2f[0x30 - 0x2F];

        freg_t  prq_st_adr;     /* Packet Ready Queue Start Address     */

        freg_t  prq_ed_adr;     /* Packet Ready Queue End Address       */

        freg_t  prq_rd_ptr;     /* Packet Ready Queue read pointer      */

        freg_t  prq_wr_ptr;     /* Packet Ready Queue write pointer     */

        freg_t  tcq_st_adr;     /* Transmit Complete Queue Start Address*/

        freg_t  tcq_ed_adr;     /* Transmit Complete Queue End Address  */

        freg_t  tcq_rd_ptr;     /* Transmit Complete Queue read pointer */

        freg_t  tcq_wr_ptr;     /* Transmit Complete Queue write pointer*/

        u_int   filler38[0x40 - 0x38];

        freg_t  queue_base;     /* Base address for PRQ and TCQ         */

        freg_t  desc_base;      /* Base address of descriptor table     */

        u_int   filler42[0x45 - 0x42];

        freg_t  mode_reg_0;     /* Mode register 0                      */

        freg_t  mode_reg_1;     /* Mode register 1                      */

        freg_t  intr_status_reg;/* Interrupt Status register            */

        freg_t  mask_reg;       /* Mask Register                        */

        freg_t  cell_ctr_high1; /* Total cell transfer count (high)     */

        freg_t  cell_ctr_lo1;   /* Total cell transfer count (low)      */

        freg_t  state_reg;      /* Status register                      */

        u_int   filler4c[0x58 - 0x4c];

        freg_t  curr_desc_num;  /* Contains the current descriptor num  */

        freg_t  next_desc;      /* Next descriptor                      */

        freg_t  next_vc;        /* Next VC                              */

        u_int   filler5b[0x5d - 0x5b];

        freg_t  present_slot_cnt;/* Present slot count                  */

        u_int   filler5e[0x6a - 0x5e];

        freg_t  new_desc_num;   /* New descriptor number                */

        freg_t  new_vc;         /* New VC                               */

        freg_t  sched_tbl_ptr;  /* Schedule table pointer               */

        freg_t  vbrwq_wptr;     /* VBR wait queue write pointer         */

        freg_t  vbrwq_rptr;     /* VBR wait queue read pointer          */

        freg_t  abrwq_wptr;     /* ABR wait queue write pointer         */

        freg_t  abrwq_rptr;     /* ABR wait queue read pointer          */

        freg_t  ubrwq_wptr;     /* UBR wait queue write pointer         */

        freg_t  ubrwq_rptr;     /* UBR wait queue read pointer          */

        freg_t  cbr_vc;         /* CBR VC                               */

        freg_t  vbr_sb_vc;      /* VBR SB VC                            */

        freg_t  abr_sb_vc;      /* ABR SB VC                            */

        freg_t  ubr_sb_vc;      /* UBR SB VC                            */

        freg_t  vbr_next_link;  /* VBR next link                        */

        freg_t  abr_next_link;  /* ABR next link                        */

        freg_t  ubr_next_link;  /* UBR next link                        */

        u_int   filler7a[0x7c-0x7a];

        freg_t  out_rate_head;  /* Out of rate head                     */

        u_int   filler7d[0xca-0x7d]; /* pad out to full address space   */

        freg_t  cell_ctr_high1_nc;/* Total cell transfer count (high)   */

        freg_t  cell_ctr_lo1_nc;/* Total cell transfer count (low)      */

        u_int   fillercc[0x100-0xcc]; /* pad out to full address space   */

} ffredn_t;

typedef struct _rfredn_t {

        rreg_t  mode_reg_0;     /* Mode register 0                      */

        rreg_t  protocol_id;    /* Protocol ID                          */

        rreg_t  mask_reg;       /* Mask Register                        */

        rreg_t  intr_status_reg;/* Interrupt status register            */

        rreg_t  drp_pkt_cntr;   /* Dropped packet cntr (clear on read)  */

        rreg_t  err_cntr;       /* Error Counter (cleared on read)      */

        u_int   filler6[0x08 - 0x06];

        rreg_t  raw_base_adr;   /* Base addr for raw cell Q             */

        u_int   filler2[0x0c - 0x09];

        rreg_t  cell_ctr0;      /* Cell Counter 0 (cleared when read)   */

        rreg_t  cell_ctr1;      /* Cell Counter 1 (cleared when read)   */

        u_int   filler3[0x0f - 0x0e];

        rreg_t  cmd_reg;        /* Command register                     */

        rreg_t  desc_base;      /* Base address for description table   */

        rreg_t  vc_lkup_base;   /* Base address for VC lookup table     */

        rreg_t  reass_base;     /* Base address for reassembler table   */

        rreg_t  queue_base;     /* Base address for Communication queue */

        u_int   filler14[0x16 - 0x14];

        rreg_t  pkt_tm_cnt;     /* Packet Timeout and count register    */

        rreg_t  tmout_range;    /* Range of reassembley IDs for timeout */

        rreg_t  intrvl_cntr;    /* Packet aging interval counter        */

        rreg_t  tmout_indx;     /* index of pkt being tested for aging  */

        u_int   filler1a[0x1c - 0x1a];

        rreg_t  vp_lkup_base;   /* Base address for VP lookup table     */

        rreg_t  vp_filter;      /* VP filter register                   */

        rreg_t  abr_lkup_base;  /* Base address of ABR VC Table         */

        u_int   filler1f[0x24 - 0x1f];

        rreg_t  fdq_st_adr;     /* Free desc queue start address        */

        rreg_t  fdq_ed_adr;     /* Free desc queue end address          */

        rreg_t  fdq_rd_ptr;     /* Free desc queue read pointer         */

        rreg_t  fdq_wr_ptr;     /* Free desc queue write pointer        */

        rreg_t  pcq_st_adr;     /* Packet Complete queue start address  */

        rreg_t  pcq_ed_adr;     /* Packet Complete queue end address    */

        rreg_t  pcq_rd_ptr;     /* Packet Complete queue read pointer   */

        rreg_t  pcq_wr_ptr;     /* Packet Complete queue write pointer  */

        rreg_t  excp_st_adr;    /* Exception queue start address        */

        rreg_t  excp_ed_adr;    /* Exception queue end address          */

        rreg_t  excp_rd_ptr;    /* Exception queue read pointer         */

        rreg_t  excp_wr_ptr;    /* Exception queue write pointer        */

        u_int   filler30[0x34 - 0x30];

        rreg_t  raw_st_adr;     /* Raw Cell start address               */

        rreg_t  raw_ed_adr;     /* Raw Cell end address                 */

        rreg_t  raw_rd_ptr;     /* Raw Cell read pointer                */

        rreg_t  raw_wr_ptr;     /* Raw Cell write pointer               */

        rreg_t  state_reg;      /* State Register                       */

        u_int   filler39[0x42 - 0x39];

        rreg_t  buf_size;       /* Buffer size                          */

        u_int   filler43;

        rreg_t  xtra_rm_offset; /* Offset of the additional turnaround RM */

        u_int   filler45[0x84 - 0x45];

        rreg_t  drp_pkt_cntr_nc;/* Dropped Packet cntr, Not clear on rd */

        rreg_t  err_cntr_nc;    /* Error Counter, Not clear on read     */

        u_int   filler86[0x8c - 0x86];

        rreg_t  cell_ctr0_nc;   /* Cell Counter 0,  Not clear on read   */

        rreg_t  cell_ctr1_nc;   /* Cell Counter 1, Not clear on read    */

        u_int   filler8e[0x100-0x8e]; /* pad out to full address space   */

} rfredn_t;

typedef struct {

        /* Atlantic */

        ffredn_t        ffredn;         /* F FRED                       */

        rfredn_t        rfredn;         /* R FRED                       */

} ia_regs_t;

typedef struct {

        u_short         f_vc_type;      /* VC type              */

        u_short         f_nrm;          /* Nrm                  */

        u_short         f_nrmexp;       /* Nrm Exp              */

        u_short         reserved6;      /*                      */