arch/arm/cpu/ixp/npe/include/IxEthAccDataPlane_p.h

   1 /**
   2  * @file IxEthAccDataPlane_p.h
   3  *
   4  * @author Intel Corporation
   5  * @date 12-Feb-2002
   6  *
   7  * @brief  Internal Header file for IXP425 Ethernet Access component.
   8  *
   9  * Design Notes:
  10  *
  11  *
  12  * @par
  13  * IXP400 SW Release version 2.0
  14  *
  15  * -- Copyright Notice --
  16  *
  17  * @par
  18  * Copyright 2001-2005, Intel Corporation.
  19  * All rights reserved.
  20  *
  21  * @par
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the above copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. Neither the name of the Intel Corporation nor the names of its contributors
  31  *    may be used to endorse or promote products derived from this software
  32  *    without specific prior written permission.
  33  *
  34  * @par
  35  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
  36  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  37  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  38  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
  39  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  40  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  41  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  42  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  43  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  44  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  45  * SUCH DAMAGE.
  46  *
  47  * @par
  48  * -- End of Copyright Notice --
  49  */
  50
  51
  52
  53 #ifndef IxEthAccDataPlane_p_H
  54 #define IxEthAccDataPlane_p_H
  55
  56 #include <IxOsal.h>
  57 #include <IxQMgr.h>
  58
  59 /**
  60  * @addtogroup IxEthAccPri
  61  *@{
  62  */
  63
  64 /* typedefs global to this file*/
  65
  66 typedef struct
  67 {
  68     IX_OSAL_MBUF *pHead;
  69     IX_OSAL_MBUF *pTail;
  70 }IxEthAccDataPlaneQList;
  71
  72
  73 /**
  74  * @struct  IxEthAccDataPlaneStats
  75  * @brief   Statistics data structure associated with the data plane
  76  *
  77  */
  78 typedef struct
  79 {
  80     UINT32 addToSwQ;
  81     UINT32 removeFromSwQ;
  82     UINT32 unchainedTxMBufs;
  83     UINT32 chainedTxMBufs;
  84     UINT32 unchainedTxDoneMBufs;
  85     UINT32 chainedTxDoneMBufs;
  86     UINT32 unchainedRxMBufs;
  87     UINT32 chainedRxMBufs;
  88     UINT32 unchainedRxFreeMBufs;
  89     UINT32 chainedRxFreeMBufs;
  90     UINT32 rxCallbackCounter;
  91     UINT32 rxCallbackBurstRead;
  92     UINT32 txDoneCallbackCounter;
  93     UINT32 unexpectedError;
  94 } IxEthAccDataPlaneStats;
  95
  96 /**
  97  * @fn ixEthAccMbufFromSwQ
  98  * @brief  used during disable steps to convert mbufs from
  99  *  swq format, ready to be pushed into hw queues for NPE,
 100  *  back into XScale format
 101  */
 102 IX_OSAL_MBUF *ixEthAccMbufFromSwQ(IX_OSAL_MBUF *mbuf);
 103
 104 /**
 105  * @fn ixEthAccDataPlaneShow
 106  * @brief  Show function (for data plane statistics
 107  */
 108 void ixEthAccDataPlaneShow(void);
 109
 110 /*
 111  * lock dataplane when atomic operation is required
 112  */
 113 #define IX_ETH_ACC_DATA_PLANE_LOCK(arg) arg = ixOsalIrqLock();
 114 #define IX_ETH_ACC_DATA_PLANE_UNLOCK(arg) ixOsalIrqUnlock(arg);
 115
 116 /*
 117  * Use MBUF fields
 118  */
 119 #define IX_ETHACC_NE_SHARED(mBufPtr) \
 120  ((IxEthAccNe *)&((mBufPtr)->ix_ne))
 121
 122 #if 1
 123
 124 #define IX_ETHACC_NE_NEXT(mBufPtr) (mBufPtr)->ix_ne.reserved[0]
 125
 126 /* tm - wrong!! len and pkt_len are in the second word - #define IX_ETHACC_NE_LEN(mBufPtr) (mBufPtr)->ix_ne.reserved[3] */
 127 #define IX_ETHACC_NE_LEN(mBufPtr) (mBufPtr)->ix_ne.reserved[1]
 128
 129 #define IX_ETHACC_NE_DATA(mBufPtr)(mBufPtr)->ix_ne.reserved[2]
 130
 131 #else
 132
 133 #define IX_ETHACC_NE_NEXT(mBufPtr) \
 134   IX_ETHACC_NE_SHARED(mBufPtr)->ixReserved_next
 135
 136 #define IX_ETHACC_NE_LEN(mBufPtr) \
 137   IX_ETHACC_NE_SHARED(mBufPtr)->ixReserved_lengths
 138
 139 #define IX_ETHACC_NE_DATA(mBufPtr) \
 140   IX_ETHACC_NE_SHARED(mBufPtr)->ixReserved_data
 141 #endif
 142
 143 /*
 144  * Use MBUF  next pointer field to chain data.
 145  */
 146 #define IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER(mbuf) (mbuf)->ix_ctrl.ix_chain
 147
 148
 149
 150 #define IX_ETH_ACC_DATAPLANE_IS_Q_EMPTY(mbuf_list) ((mbuf_list.pHead) == NULL)
 151
 152
 153 #define IX_ETH_ACC_DATAPLANE_ADD_MBUF_TO_Q_HEAD(mbuf_list,mbuf_to_add)          \
 154   do {                                                                          \
 155     int lockVal;                                                                \
 156     IX_ETH_ACC_DATA_PLANE_LOCK(lockVal);                                        \
 157     IX_ETH_ACC_STATS_INC(ixEthAccDataStats.addToSwQ);                           \
 158     if ( (mbuf_list.pHead) != NULL )                                            \
 159     {                                                                           \
 160       (IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_add))) = (mbuf_list.pHead);\
 161       (mbuf_list.pHead) = (mbuf_to_add);                                        \
 162     }                                                                           \
 163     else {                                                                      \
 164       (mbuf_list.pTail) = (mbuf_list.pHead) = (mbuf_to_add);                    \
 165       IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_add)) = NULL;              \
 166     }                                                                           \
 167     IX_ETH_ACC_DATA_PLANE_UNLOCK(lockVal);                                      \
 168   } while(0)
 169
 170
 171 #define IX_ETH_ACC_DATAPLANE_ADD_MBUF_TO_Q_TAIL(mbuf_list,mbuf_to_add)          \
 172   do {                                                                          \
 173     int lockVal;                                                                \
 174     IX_ETH_ACC_DATA_PLANE_LOCK(lockVal);                                        \
 175     IX_ETH_ACC_STATS_INC(ixEthAccDataStats.addToSwQ);                           \
 176     if ( (mbuf_list.pHead) == NULL )                                            \
 177     {                                                                           \
 178       (mbuf_list.pHead) = mbuf_to_add;                                          \
 179       IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_add)) = NULL;              \
 180     }                                                                           \
 181     else {                                                                      \
 182       IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_list.pTail)) = (mbuf_to_add); \
 183       IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_add)) = NULL;              \
 184     }                                                                           \
 185     (mbuf_list.pTail) = mbuf_to_add;                                            \
 186     IX_ETH_ACC_DATA_PLANE_UNLOCK(lockVal);                                      \
 187   } while (0)
 188
 189
 190 #define IX_ETH_ACC_DATAPLANE_REMOVE_MBUF_FROM_Q_HEAD(mbuf_list,mbuf_to_rem)     \
 191   do {                                                                          \
 192     int lockVal;                                                                \
 193     IX_ETH_ACC_DATA_PLANE_LOCK(lockVal);                                        \
 194     if ( (mbuf_list.pHead) != NULL )                                            \
 195     {                                                                           \
 196       IX_ETH_ACC_STATS_INC(ixEthAccDataStats.removeFromSwQ);                    \
 197       (mbuf_to_rem) = (mbuf_list.pHead) ;                                       \
 198       (mbuf_list.pHead) = (IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_rem)));\
 199     }                                                                           \
 200     else {                                                                      \
 201       (mbuf_to_rem) = NULL;                                                     \
 202     }                                                                           \
 203     IX_ETH_ACC_DATA_PLANE_UNLOCK(lockVal);                                      \
 204   } while (0)
 205
 206
 207 /**
 208  * @brief message handler QManager entries for NPE id => port ID conversion (NPE_B => 0, NPE_C => 1)
 209  */
 210 #define IX_ETH_ACC_PORT_TO_NPE_ID(port) \
 211    ixEthAccPortData[(port)].npeId
 212
 213 #define IX_ETH_ACC_NPE_TO_PORT_ID(npe) ((npe == 0 ? 2 : (npe == 1 ? 0 : ( npe == 2 ? 1 : -1 ))))
 214
 215 #define IX_ETH_ACC_PORT_TO_TX_Q_ID(port)  \
 216    ixEthAccPortData[(port)].ixEthAccTxData.txQueue
 217
 218 #define IX_ETH_ACC_PORT_TO_RX_FREE_Q_ID(port) \
 219    ixEthAccPortData[(port)].ixEthAccRxData.rxFreeQueue
 220
 221 #define IX_ETH_ACC_PORT_TO_TX_Q_SOURCE(port)    (port == IX_ETH_PORT_1 ? IX_ETH_ACC_TX_FRAME_ENET0_Q_SOURCE : (port == IX_ETH_PORT_2 ? IX_ETH_ACC_TX_FRAME_ENET1_Q_SOURCE : IX_ETH_ACC_TX_FRAME_ENET2_Q_SOURCE))
 222
 223 #define IX_ETH_ACC_PORT_TO_RX_FREE_Q_SOURCE(port) (port == IX_ETH_PORT_1 ? IX_ETH_ACC_RX_FREE_BUFF_ENET0_Q_SOURCE : (port == IX_ETH_PORT_2 ? IX_ETH_ACC_RX_FREE_BUFF_ENET1_Q_SOURCE : IX_ETH_ACC_RX_FREE_BUFF_ENET2_Q_SOURCE ))
 224
 225 /* Flush the mbufs chain and all data pointed to by the mbuf */
 226
 227 #ifndef NDEBUG
 228 #define IX_ETH_ACC_STATS_INC(x) (x++)
 229 #else
 230 #define IX_ETH_ACC_STATS_INC(x)
 231 #endif
 232
 233 #define IX_ETH_ACC_MAX_TX_FRAMES_TO_SUBMIT 128
 234
 235 void ixEthRxFrameQMCallback(IxQMgrQId qId, IxQMgrCallbackId callbackId);
 236 void ixEthRxMultiBufferQMCallback(IxQMgrQId qId, IxQMgrCallbackId callbackId);
 237 void ixEthTxFrameDoneQMCallback(IxQMgrQId qId, IxQMgrCallbackId callbackId);
 238
 239 #endif /* IxEthAccDataPlane_p_H */
 240
 241
 242 /**
 243  *@}
 244  */
 245