package/ltq-dsl/src/ifxmips_atm_core.h

   1 /******************************************************************************
   2 **
   3 ** FILE NAME    : ifxmips_atm_core.h
   4 ** PROJECT      : UEIP
   5 ** MODULES      : ATM
   6 **
   7 ** DATE         : 7 Jul 2009
   8 ** AUTHOR       : Xu Liang
   9 ** DESCRIPTION  : ATM driver header file (core functions)
  10 ** COPYRIGHT    :       Copyright (c) 2006
  11 **                      Infineon Technologies AG
  12 **                      Am Campeon 1-12, 85579 Neubiberg, Germany
  13 **
  14 **    This program is free software; you can redistribute it and/or modify
  15 **    it under the terms of the GNU General Public License as published by
  16 **    the Free Software Foundation; either version 2 of the License, or
  17 **    (at your option) any later version.
  18 **
  19 ** HISTORY
  20 ** $Date        $Author         $Comment
  21 ** 17 JUN 2009  Xu Liang        Init Version
  22 *******************************************************************************/
  23
  24 #ifndef IFXMIPS_ATM_CORE_H
  25 #define IFXMIPS_ATM_CORE_H
  26
  27
  28 #include "ifxmips_compat.h"
  29 #include "ifx_atm.h"
  30 #include "ifxmips_atm_ppe_common.h"
  31 #include "ifxmips_atm_fw_regs_common.h"
  32
  33
  34
  35 /*
  36  * ####################################
  37  *              Definition
  38  * ####################################
  39  */
  40
  41 /*
  42  *  Compile Options
  43  */
  44
  45 #define ENABLE_DEBUG                    1
  46
  47 #define ENABLE_ASSERT                   1
  48
  49 #define INLINE
  50
  51 #define DEBUG_DUMP_SKB                  1
  52
  53 #define DEBUG_QOS                       1
  54
  55 #define ENABLE_DBG_PROC                 1
  56
  57 #define ENABLE_FW_PROC                  1
  58
  59 #ifdef CONFIG_IFX_ATM_TASKLET
  60   #define ENABLE_TASKLET                1
  61 #endif
  62
  63
  64 /*
  65  *  Debug/Assert/Error Message
  66  */
  67
  68 #define DBG_ENABLE_MASK_ERR             (1 << 0)
  69 #define DBG_ENABLE_MASK_DEBUG_PRINT     (1 << 1)
  70 #define DBG_ENABLE_MASK_ASSERT          (1 << 2)
  71 #define DBG_ENABLE_MASK_DUMP_SKB_RX     (1 << 8)
  72 #define DBG_ENABLE_MASK_DUMP_SKB_TX     (1 << 9)
  73 #define DBG_ENABLE_MASK_DUMP_QOS        (1 << 10)
  74 #define DBG_ENABLE_MASK_DUMP_INIT       (1 << 11)
  75 #define DBG_ENABLE_MASK_ALL             (DBG_ENABLE_MASK_ERR | DBG_ENABLE_MASK_DEBUG_PRINT | DBG_ENABLE_MASK_ASSERT | DBG_ENABLE_MASK_DUMP_SKB_RX | DBG_ENABLE_MASK_DUMP_SKB_TX | DBG_ENABLE_MASK_DUMP_QOS | DBG_ENABLE_MASK_DUMP_INIT)
  76
  77 #define err(format, arg...)             do { if ( (ifx_atm_dbg_enable & DBG_ENABLE_MASK_ERR) ) printk(KERN_ERR __FILE__ ":%d:%s: " format "\n", __LINE__, __FUNCTION__, ##arg); } while ( 0 )
  78
  79 #if defined(ENABLE_DEBUG) && ENABLE_DEBUG
  80   #undef  dbg
  81   #define dbg(format, arg...)           do { if ( (ifx_atm_dbg_enable & DBG_ENABLE_MASK_DEBUG_PRINT) ) printk(KERN_WARNING __FILE__ ":%d:%s: " format "\n", __LINE__, __FUNCTION__, ##arg); } while ( 0 )
  82 #else
  83   #if !defined(dbg)
  84     #define dbg(format, arg...)
  85   #endif
  86 #endif
  87
  88 #if defined(ENABLE_ASSERT) && ENABLE_ASSERT
  89   #define ASSERT(cond, format, arg...)  do { if ( (ifx_atm_dbg_enable & DBG_ENABLE_MASK_ASSERT) && !(cond) ) printk(KERN_ERR __FILE__ ":%d:%s: " format "\n", __LINE__, __FUNCTION__, ##arg); } while ( 0 )
  90 #else
  91   #define ASSERT(cond, format, arg...)
  92 #endif
  93
  94
  95 /*
  96  *  Constants
  97  */
  98 #define DEFAULT_TX_LINK_RATE            3200    //  in cells
  99
 100 /*
 101  *  ATM Port, QSB Queue, DMA RX/TX Channel Parameters
 102  */
 103 #define ATM_PORT_NUMBER                 2
 104 #define MAX_QUEUE_NUMBER                16
 105 #define OAM_RX_QUEUE                    15
 106 #define QSB_RESERVE_TX_QUEUE            0
 107 #define FIRST_QSB_QID                   1
 108 #define MAX_PVC_NUMBER                  (MAX_QUEUE_NUMBER - FIRST_QSB_QID)
 109 #define MAX_RX_DMA_CHANNEL_NUMBER       8
 110 #define MAX_TX_DMA_CHANNEL_NUMBER       16
 111 #define DATA_BUFFER_ALIGNMENT           EMA_ALIGNMENT
 112 #define DESC_ALIGNMENT                  8
 113 #define DEFAULT_RX_HUNT_BITTH           4
 114
 115 /*
 116  *  RX DMA Channel Allocation
 117  */
 118 #define RX_DMA_CH_OAM                   0
 119 #define RX_DMA_CH_AAL                   1
 120 #define RX_DMA_CH_TOTAL                 2
 121 #define RX_DMA_CH_OAM_DESC_LEN          32
 122 #define RX_DMA_CH_OAM_BUF_SIZE          (CELL_SIZE & ~15)
 123 #define RX_DMA_CH_AAL_BUF_SIZE          (2048 - 48)
 124
 125 /*
 126  *  OAM Constants
 127  */
 128 #define OAM_HTU_ENTRY_NUMBER            3
 129 #define OAM_F4_SEG_HTU_ENTRY            0
 130 #define OAM_F4_TOT_HTU_ENTRY            1
 131 #define OAM_F5_HTU_ENTRY                2
 132 #define OAM_F4_CELL_ID                  0
 133 #define OAM_F5_CELL_ID                  15
 134 //#if defined(ENABLE_ATM_RETX) && ENABLE_ATM_RETX
 135 //  #undef  OAM_HTU_ENTRY_NUMBER
 136 //  #define OAM_HTU_ENTRY_NUMBER          4
 137 //  #define OAM_ARQ_HTU_ENTRY             3
 138 //#endif
 139
 140 /*
 141  *  RX Frame Definitions
 142  */
 143 #define MAX_RX_PACKET_ALIGN_BYTES       3
 144 #define MAX_RX_PACKET_PADDING_BYTES     3
 145 #define RX_INBAND_TRAILER_LENGTH        8
 146 #define MAX_RX_FRAME_EXTRA_BYTES        (RX_INBAND_TRAILER_LENGTH + MAX_RX_PACKET_ALIGN_BYTES + MAX_RX_PACKET_PADDING_BYTES)
 147
 148 /*
 149  *  TX Frame Definitions
 150  */
 151 #define MAX_TX_HEADER_ALIGN_BYTES       12
 152 #define MAX_TX_PACKET_ALIGN_BYTES       3
 153 #define MAX_TX_PACKET_PADDING_BYTES     3
 154 #define TX_INBAND_HEADER_LENGTH         8
 155 #define MAX_TX_FRAME_EXTRA_BYTES        (TX_INBAND_HEADER_LENGTH + MAX_TX_HEADER_ALIGN_BYTES + MAX_TX_PACKET_ALIGN_BYTES + MAX_TX_PACKET_PADDING_BYTES)
 156
 157 /*
 158  *  Cell Constant
 159  */
 160 #define CELL_SIZE                       ATM_AAL0_SDU
 161
 162
 163
 164 /*
 165  * ####################################
 166  *              Data Type
 167  * ####################################
 168  */
 169
 170 typedef struct {
 171     unsigned int            h;
 172     unsigned int            l;
 173 } ppe_u64_t;
 174
 175 struct port {
 176     unsigned int            tx_max_cell_rate;
 177     unsigned int            tx_current_cell_rate;
 178
 179     struct atm_dev         *dev;
 180 };
 181
 182 struct connection {
 183     struct atm_vcc         *vcc;
 184
 185     volatile struct tx_descriptor
 186                            *tx_desc;
 187     unsigned int            tx_desc_pos;
 188     struct sk_buff        **tx_skb;
 189
 190     unsigned int            aal5_vcc_crc_err;       /*  number of packets with CRC error        */
 191     unsigned int            aal5_vcc_oversize_sdu;  /*  number of packets with oversize error   */
 192
 193     unsigned int            port;
 194 };
 195
 196 struct atm_priv_data {
 197     unsigned long           conn_table;
 198     struct connection       conn[MAX_PVC_NUMBER];
 199
 200     volatile struct rx_descriptor
 201                            *aal_desc;
 202     unsigned int            aal_desc_pos;
 203
 204     volatile struct rx_descriptor
 205                            *oam_desc;
 206     unsigned char          *oam_buf;
 207     unsigned int            oam_desc_pos;
 208
 209     struct port             port[ATM_PORT_NUMBER];
 210
 211     unsigned int            wrx_pdu;        /*  successfully received AAL5 packet       */
 212     unsigned int            wrx_drop_pdu;   /*  AAL5 packet dropped by driver on RX     */
 213     unsigned int            wtx_pdu;        /*  successfully tranmitted AAL5 packet     */
 214     unsigned int            wtx_err_pdu;    /*  error AAL5 packet                       */
 215     unsigned int            wtx_drop_pdu;   /*  AAL5 packet dropped by driver on TX     */
 216
 217     ppe_u64_t               wrx_total_byte;
 218     ppe_u64_t               wtx_total_byte;
 219     unsigned int            prev_wrx_total_byte;
 220     unsigned int            prev_wtx_total_byte;
 221
 222     void                   *aal_desc_base;
 223     void                   *oam_desc_base;
 224     void                   *oam_buf_base;
 225     void                   *tx_desc_base;
 226     void                   *tx_skb_base;
 227 };
 228
 229
 230
 231 /*
 232  * ####################################
 233  *             Declaration
 234  * ####################################
 235  */
 236
 237 extern unsigned int ifx_atm_dbg_enable;
 238
 239 extern void ifx_atm_get_fw_ver(unsigned int *major, unsigned int *minor);
 240
 241 extern void ifx_atm_init_chip(void);
 242 extern void ifx_atm_uninit_chip(void);
 243
 244 extern int ifx_pp32_start(int pp32);
 245 extern void ifx_pp32_stop(int pp32);
 246
 247
 248
 249 #endif  //  IFXMIPS_ATM_CORE_H