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Further clarification on xran E release parameters

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- remove xran parameter io_cfg->port logging => this parameter
    is filled within xran library in both E and F releases
  - PRACH offset explanation; not limited to >= max(Ntx, Nrx);
    workaround done in xran to support PRACH eAxC IDs same as PUSCH eAxC IDs
  - DL PRB not used in xran; UL PRB used in xran F release, therefore
    removed from the patch
  - these fixes should have been done in the commit ID f3045396
This commit is contained in:
Teodora
2024-12-05 22:59:58 +01:00
parent dd4ffe3439
commit 698245c7e9
1 changed files with 9 additions and 23 deletions
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radio/fhi_72/oran-config.c
+9 -23
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@@ -103,7 +103,7 @@ static void print_fh_init_io_cfg(const struct xran_io_cfg *io_cfg)
pkt_proc_core_64_127 %016lx\n\
pkt_aux_core %d\n\
timing_core %d\n\
port [%d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, ]\n\
port (filled within xran library)\n\
io_sleep %d\n\
nEthLinePerPort %d\n\
nEthLineSpeed %d\n\
@@ -114,22 +114,6 @@ static void print_fh_init_io_cfg(const struct xran_io_cfg *io_cfg)
io_cfg->pkt_proc_core_64_127,
io_cfg->pkt_aux_core,
io_cfg->timing_core,
io_cfg->port[XRAN_UP_VF],
io_cfg->port[XRAN_CP_VF],
io_cfg->port[XRAN_UP_VF1],
io_cfg->port[XRAN_CP_VF1],
io_cfg->port[XRAN_UP_VF2],
io_cfg->port[XRAN_CP_VF2],
io_cfg->port[XRAN_UP_VF3],
io_cfg->port[XRAN_CP_VF3],
io_cfg->port[XRAN_UP_VF4],
io_cfg->port[XRAN_CP_VF4],
io_cfg->port[XRAN_UP_VF5],
io_cfg->port[XRAN_CP_VF5],
io_cfg->port[XRAN_UP_VF6],
io_cfg->port[XRAN_CP_VF6],
io_cfg->port[XRAN_UP_VF7],
io_cfg->port[XRAN_CP_VF7],
io_cfg->io_sleep,
io_cfg->nEthLinePerPort,
io_cfg->nEthLineSpeed,
@@ -587,7 +571,7 @@ static bool set_fh_init(struct xran_fh_init *fh_init, enum xran_category xran_ca
fh_init->dpdkBasebandFecMode = 0; // DPDK Baseband FEC device mode (0-SW, 1-HW); not used in xran
fh_init->dpdkBasebandDevice = NULL; // DPDK Baseband device address; not used in xran
/* used to specify a unique prefix for shared memory, and files created by multiple DPDK processes;
is it necessary */
it is necessary */
fh_init->filePrefix = strdup(*gpd(fhip, nump, ORAN_CONFIG_FILE_PREFIX)->strptr);
/* maximum transmission unit (MTU) is the size of the largest protocol data unit (PDU) that can be
communicated in a single xRAN network layer transaction. Supported 1500 bytes and 9600 bytes (Jumbo Frame);
@@ -650,7 +634,9 @@ static bool set_fh_prach_config(const openair0_config_t *oai0,
/* xran defines PDSCH eAxC IDs as [0...Ntx-1];
xran defines PUSCH eAxC IDs as [0...Nrx-1];
PRACH offset must be >= max(Ntx, Nrx) */
xran assumes PRACH offset >= max(Ntx, Nrx). However, we made a workaround that xran supports PRACH eAxC IDs same as PUSCH eAxC IDs.
This is achieved with is_prach and filter_id parameters in the patch.
Please note that this approach only applies to the RUs that support this functionality, e.g. LITEON RU. */
uint8_t offset = *gpd(prachp, nprach, ORAN_PRACH_CONFIG_EAXC_OFFSET)->u8ptr;
prach_config->eAxC_offset = (offset != 0) ? offset : max_num_ant;
@@ -771,8 +757,8 @@ static bool set_fh_config(int ru_idx, int num_rus, enum xran_category xran_cat,
fh_config->nAntElmTRx = 0; // number of antenna elements for TX and RX = SRS; used only if XRAN_CATEGORY_B
fh_config->nDLFftSize = 0; // DL FFT size; not used in xran
fh_config->nULFftSize = 0; // UL FFT size; not used in xran
fh_config->nDLRBs = oai0->num_rb_dl; // DL PRB
fh_config->nULRBs = oai0->num_rb_dl; // UL PRB; in xran not used as id = O_DU, but used in oaioran.c/oran-init.c
fh_config->nDLRBs = oai0->num_rb_dl; // DL PRB; used in oaioran.c/oran-init.c; not used in xran, neither in E nor in F release
fh_config->nULRBs = oai0->num_rb_dl; // UL PRB; used in oaioran.c/oran-init.c; in xran E release not used so the patch fixes it, but in xran F release this value is properly used
fh_config->nDLAbsFrePointA = 0; // Abs Freq Point A of the Carrier Center Frequency for in KHz Value; not used in xran
fh_config->nULAbsFrePointA = 0; // Abs Freq Point A of the Carrier Center Frequency for in KHz Value; not used in xran
fh_config->nDLCenterFreqARFCN = 0; // center frequency for DL in NR-ARFCN; not used in xran
@@ -797,9 +783,9 @@ static bool set_fh_config(int ru_idx, int num_rus, enum xran_category xran_cat,
fh_config->puschMaskSlot = 0; // specific which slot PUSCH channel masked; only used if id = O_RU
fh_config->cp_vlan_tag = *gpd(fhp, nfh, ORAN_FH_CONFIG_CP_VLAN_TAG)->uptr; // C-plane VLAN tag; not used in xran; needed for M-plane
fh_config->up_vlan_tag = *gpd(fhp, nfh, ORAN_FH_CONFIG_UP_VLAN_TAG)->uptr; // U-plane VLAN tag; not used in xran; needed for M-plane
fh_config->debugStop = 0; // enable auto stop; not used in xran
fh_config->debugStop = 0; // enable auto stop; only used if id = O_RU
fh_config->debugStopCount = 0; // enable auto stop after number of Tx packets; not used in xran
fh_config->DynamicSectionEna = 0; // enable dynamic C-Plane section allocation; not used in xran
fh_config->DynamicSectionEna = 0; // enable dynamic C-Plane section allocation
fh_config->GPS_Alpha = 0; // refers to alpha as defined in section 9.7.2 of ORAN spec. this value should be alpha*(1/1.2288ns), range 0 - 1e7 (ns); offset_nsec = (pConf->GPS_Beta - offset_sec * 100) * 1e7 + pConf->GPS_Alpha
fh_config->GPS_Beta = 0; // beta value as defined in section 9.7.2 of ORAN spec. range -32767 ~ +32767; offset_sec = pConf->GPS_Beta / 100