src/5gnrmac/mac_utils.h

   1 /*******************************************************************************
   2 ################################################################################
   3 #   Copyright (c) [2017-2019] [Radisys]                                        #
   4 #                                                                              #
   5 #   Licensed under the Apache License, Version 2.0 (the "License");            #
   6 #   you may not use this file except in compliance with the License.           #
   7 #   You may obtain a copy of the License at                                    #
   8 #                                                                              #
   9 #       http://www.apache.org/licenses/LICENSE-2.0                             #
  10 #                                                                              #
  11 #   Unless required by applicable law or agreed to in writing, software        #
  12 #   distributed under the License is distributed on an "AS IS" BASIS,          #
  13 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
  14 #   See the License for the specific language governing permissions and        #
  15 #   limitations under the License.                                             #
  16 ################################################################################
  17 *******************************************************************************/
  18
  19 /* Contains common utility definitions to be used at MAC */
  20
  21 #define MAX_SHORT_BSR_TABLE_ENTRIES 32
  22 #define MAC_MEM_REGION   4
  23 #define MAC_POOL         1
  24
  25 /* allocate and zero out a MAC static buffer */
  26 #define MAC_ALLOC(_datPtr, _size)                            \
  27 {                                                            \
  28    uint8_t _ret;                                             \
  29    _ret = SGetSBuf(MAC_MEM_REGION, MAC_POOL,                 \
  30          (Data **)&_datPtr, _size);                          \
  31    if(_ret == ROK)                                           \
  32    {                                                         \
  33       memset(_datPtr, 0, _size);                \
  34    }                                                         \
  35    else                                                      \
  36    {                                                         \
  37       _datPtr = NULLP;                                       \
  38    }                                                         \
  39 }
  40
  41 /* free a static buffer */
  42 #define MAC_FREE(_datPtr, _size)                             \
  43 {                                                            \
  44    if(_datPtr)                                               \
  45    {                                                         \
  46       SPutSBuf(MAC_MEM_REGION, MAC_POOL,                     \
  47             (Data *)_datPtr, _size);                         \
  48    }                                                         \
  49 }
  50
  51 /* Allocate shared memory to be used for LWLC
  52  * during inter-layer communication */
  53 #define MAC_ALLOC_SHRABL_BUF(_buf, _size)                    \
  54 {                                                            \
  55    if(SGetStaticBuffer(MAC_MEM_REGION, MAC_POOL,             \
  56             (Data **)&_buf, (Size) _size, 0) == ROK)         \
  57    {                                                         \
  58       memset((_buf), 0, _size);                 \
  59    }                                                         \
  60    else                                                      \
  61    {                                                         \
  62       (_buf) = NULLP;                                        \
  63    }                                                         \
  64 }
  65
  66 /* Free shared memory, received through LWLC */
  67 #define MAC_FREE_SHRABL_BUF(_region, _pool,_buf, _size)      \
  68 {                                                            \
  69    if (_buf != NULLP)                                        \
  70    {                                                         \
  71       (Void) SPutStaticBuffer(_region, _pool,                \
  72             (Data *) _buf, (Size) _size, 0);                 \
  73       _buf = NULLP;                                          \
  74    }                                                         \
  75 }
  76
  77 /* Fill Pst structure for sending msg from MAC to DU APP */
  78 #define FILL_PST_MAC_TO_DUAPP(_pst, _event)                     \
  79 {                                                           \
  80    _pst.selector  = ODU_SELECTOR_LWLC;                      \
  81    _pst.srcEnt    = ENTMAC;                                  \
  82    _pst.dstEnt    = ENTDUAPP;                               \
  83    _pst.dstInst   = 0;                                      \
  84    _pst.srcInst   = macCb.macInst;                          \
  85    _pst.dstProcId = macCb.procId;                           \
  86    _pst.srcProcId = macCb.procId;                           \
  87    _pst.region = MAC_MEM_REGION;                            \
  88    _pst.pool = MAC_POOL;                                    \
  89    _pst.event = _event;                                     \
  90    _pst.route = 0;                                          \
  91    _pst.prior = 0;                                          \
  92    _pst.intfVer = 0;                                        \
  93 }
  94
  95 /* Fill Pst structure for sending msg from MAC to SCH */
  96 #define FILL_PST_MAC_TO_SCH(_pst, _event)                       \
  97 {                                                           \
  98    _pst.selector  = ODU_SELECTOR_TC;                        \
  99    _pst.srcEnt    = ENTMAC;                                  \
 100    _pst.dstEnt    = ENTMAC;                                  \
 101    _pst.dstInst   = 1;                                      \
 102    _pst.srcInst   = macCb.macInst;                          \
 103    _pst.dstProcId = macCb.procId;                           \
 104    _pst.srcProcId = macCb.procId;                           \
 105    _pst.region = MAC_MEM_REGION;                            \
 106    _pst.pool = MAC_POOL;                                    \
 107    _pst.event = _event;                                     \
 108    _pst.route = 0;                                          \
 109    _pst.prior = 0;                                          \
 110    _pst.intfVer = 0;                                        \
 111 }
 112
 113 /* Fills Pst to send msg to RLC */
 114 #define FILL_PST_MAC_TO_RLC(_pst, _dstInst, _event)        \
 115 {                                                      \
 116    pst.selector  = ODU_SELECTOR_LWLC;                  \
 117    pst.srcEnt    = ENTMAC;                              \
 118    pst.dstEnt    = ENTRLC;                              \
 119    pst.dstInst   = _dstInst;                           \
 120    pst.srcInst   = macCb.macInst;                      \
 121    pst.dstProcId = macCb.procId;                       \
 122    pst.srcProcId = macCb.procId;                       \
 123    pst.region    = MAC_MEM_REGION;                     \
 124    pst.pool      = MAC_POOL;                           \
 125    pst.event     = _event;                             \
 126    pst.route     = 0;                                  \
 127    pst.prior     = 0;                                  \
 128    pst.intfVer   = 0;                                  \
 129 }
 130
 131 /* Function declaration */
 132 uint16_t getNewCrnti(uint8_t *crntiMap);
 133
 134 /**********************************************************************
 135          End of file
 136 **********************************************************************/