[FHI72] Simplify RunSlotPrbMapBySymbol and add in the README

doc/ORAN_FHI7.2_Tutorial.md

@@ -1012,6 +1012,7 @@ Edit the sample OAI gNB configuration file and check following parameters:
       [Memory in DPDK](https://www.dpdk.org/memory-in-dpdk-part-2-deep-dive-into-iova/)
   * `owdm_enable`: used for eCPRI One-Way Delay Measurements; it depends if the RU supports it; if not set to 1 (enabled), default value is 0 (disabled)
   * `fh_config`
+    * `RunSlotPrbMapBySymbol`: enable CP multisection (one symbol per section); default value is 0
     *  DU delay profile (`T1a` and `Ta4`): pairs of numbers `(x, y)` specifying minimum and maximum delays
     * `ru_config`: RU-specific configuration:
       * `iq_width`: Width of DL/UL IQ samples: if 16, no compression, if <16, applies

radio/fhi_72/oran-config.c

@@ -961,7 +961,6 @@ static bool set_fh_config(void *mplane_api, int ru_idx, int num_rus, enum xran_c
 #if defined F_RELEASE
   fh_config->srsEnableCp = 0; // enable SRS CP; used only if XRAN_CATEGORY_B
   fh_config->SrsDelaySym = 0; // number of SRS delay symbols; used only if XRAN_CATEGORY_B
-  fh_config->RunSlotPrbMapBySymbolEnable    = *gpd(fhp, nfh, ORAN_CONFIG_RunSlotPrbMapBySymbol)->uptr;    // enable RunSlotPrbMapBySymbol
 #endif
   fh_config->puschMaskEnable = 0; // enable PUSCH mask; only used if id = O_RU
   fh_config->puschMaskSlot = 0; // specific which slot PUSCH channel masked; only used if id = O_RU
@@ -1005,6 +1004,8 @@ static bool set_fh_config(void *mplane_api, int ru_idx, int num_rus, enum xran_c
   fh_config->max_sections_per_symbol = 0; // not used in xran
 
 #if defined F_RELEASE
+  fh_config->RunSlotPrbMapBySymbolEnable = *gpd(fhp, nfh, ORAN_CONFIG_CP_MULTISECTION)->uptr; // enable PRB mapping by symbol with multisection
+
   fh_config->dssEnable = 0; // enable DSS (extension-9)
   fh_config->dssPeriod = 0; // DSS pattern period for LTE/NR
   // fh_config->technology[XRAN_MAX_DSS_PERIODICITY] // technology array represents slot is LTE(0)/NR(1); used only if DSS enabled

radio/fhi_72/oran-init.c

@@ -315,16 +315,8 @@ static void oran_allocate_buffers(void *handle,
   };
 
 #if defined F_RELEASE
-  uint32_t size_of_prb_map;
-  if (fh_config->RunSlotPrbMapBySymbolEnable) {
-    // For Liteon FR2 with RunSlotPrbMapBySymbolEnable, xran_prb_map will have xran_prb_elm prbMap[14]
-    size_of_prb_map  = sizeof(struct xran_prb_map) + sizeof(struct xran_prb_elm) * (XRAN_NUM_OF_SYMBOL_PER_SLOT);
-  }
-  else {
-    // For non-Liteon w/o RunSlotPrbMapBySymbolEnable, xran_prb_map will have xran_prb_elm prbMap[1]
-    uint32_t numPrbElm = xran_get_num_prb_elm(&dlPm, mtu);
-    size_of_prb_map  = sizeof(struct xran_prb_map) + sizeof(struct xran_prb_elm) * (numPrbElm);
-  }
+  uint32_t numPrbElm = (fh_config->RunSlotPrbMapBySymbolEnable) ? XRAN_NUM_OF_SYMBOL_PER_SLOT : xran_get_num_prb_elm(&dlPm, mtu);
+  uint32_t size_of_prb_map = sizeof(struct xran_prb_map) + sizeof(struct xran_prb_elm) * (numPrbElm);
 #endif
 
   // PDSCH

radio/fhi_72/oran-params.h

@@ -106,7 +106,7 @@
 
 #define CONFIG_STRING_ORAN_FH "fh_config"
 
-#define ORAN_CONFIG_RunSlotPrbMapBySymbol "RunSlotPrbMapBySymbol"
+#define ORAN_CONFIG_CP_MULTISECTION "RunSlotPrbMapBySymbol"
 #define ORAN_FH_CONFIG_T1A_CP_DL "T1a_cp_dl"
 #define ORAN_FH_CONFIG_T1A_CP_UL "T1a_cp_ul"
 #define ORAN_FH_CONFIG_T1A_UP "T1a_up"
@@ -116,7 +116,7 @@
 
 // clang-format off
 #define ORAN_FH_DESC { \
-  {ORAN_CONFIG_RunSlotPrbMapBySymbol,   "RunSlotPrbMapBySymbol\n",     PARAMFLAG_BOOL,      .uptr=NULL, .defuintval=0,     TYPE_UINT,      0}, \
+  {ORAN_CONFIG_CP_MULTISECTION,         "RunSlotPrbMapBySymbol\n",     PARAMFLAG_BOOL,      .iptr=NULL, .defintval=0,      TYPE_INT32,     0}, \
   {ORAN_FH_CONFIG_T1A_CP_DL,            "T1a_cp_dl" ORAN_FH_HLP_CPLT,  PARAMFLAG_MANDATORY, .uptr=NULL, .defintarrayval=0, TYPE_UINTARRAY, 0}, \
   {ORAN_FH_CONFIG_T1A_CP_UL,            "T1a_cp_ul" ORAN_FH_HLP_CPLT,  PARAMFLAG_MANDATORY, .uptr=NULL, .defintarrayval=0, TYPE_UINTARRAY, 0}, \
   {ORAN_FH_CONFIG_T1A_UP,               "T1a_up" ORAN_FH_HLP_CPLT,     PARAMFLAG_MANDATORY, .uptr=NULL, .defintarrayval=0, TYPE_UINTARRAY, 0}, \