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M-plane support - explanation on needed parameters

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- RU IP address - to connect to RUs via netconf
  - DU MAC address - for setting up the CU-planes on RU; not used in xran
  - VLAN tag (*) - for setting up the CU-planes on RU; not used in xran
  - DU keypair - for authentication when connecting to RU(s)

The parameters that RU-controller shall retreive from RU list of
capabilities:
  - MTU
  - compression
  - RU MAC address
  - PRACH offset (**)

(*) VLAN tag is not used in xran but an option is given in fh_config struct.
In my opinion, it is not a very suitable place, as it is needed for VFs.
Therefore, I moved it in the initialization part for M-plane purposes.

(**) PRACH offset shall be >= max(Ntx,Nrx), as per O-RAN CUS specification:
"The O-DU may decide to use same eAxC ID value to address endpoints on different O-RUs,
but eAxC ID values assigned to one O-RU must be unique within the O-RU’s endpoints of same direction."
=> however, LITEON supports flexible assignment of PRACH eAxC IDs, so
we made a workaround in the xran library to support PRACH eAxC IDs same
as PUSCH eAxC IDs.
This commit is contained in:
Teodora
2025-03-29 12:51:07 +01:00
parent 1d479b2aa9
commit 3a095ac57e
2 changed files with 19 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
radio/fhi_72/oran-config.c
+2 -2
View File
@@ -839,8 +839,8 @@ static bool set_fh_config(int ru_idx, int num_rus, enum xran_category xran_cat,
#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
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->cp_vlan_tag = 0; // C-plane VLAN tag; not used in xran; needed for M-plane
fh_config->up_vlan_tag = 0; // U-plane VLAN tag; not used in xran; needed for M-plane
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
radio/fhi_72/oran-params.h
+17 -9
View File
@@ -31,8 +31,12 @@
#define ORAN_CONFIG_SYSTEM_CORE "system_core"
#define ORAN_CONFIG_IO_CORE "io_core"
#define ORAN_CONFIG_WORKER_CORES "worker_cores"
#define ORAN_CONFIG_RU_ADDR "ru_addr"
#define ORAN_CONFIG_MTU "mtu"
#define ORAN_CONFIG_DU_KEYPAIR "du_key_pair" // only needed for M-plane
#define ORAN_CONFIG_DU_ADDR "du_addr" // only needed for M-plane
#define ORAN_CONFIG_VLAN_TAG "vlan_tag" // only needed for M-plane
#define ORAN_CONFIG_RU_ADDR "ru_addr" // not needed if M-plane used
#define ORAN_CONFIG_RU_IP_ADDR "ru_ip_addr" // only needed for M-plane
#define ORAN_CONFIG_MTU "mtu" // not needed if M-plane used
#define ORAN_CONFIG_FILE_PREFIX "file_prefix"
#define ORAN_CONFIG_NETHPERPORT "eth_lines"
#define ORAN_CONFIG_NETHSPEED "eth_speed"
@@ -48,7 +52,11 @@
{ORAN_CONFIG_SYSTEM_CORE, "DPDK control threads core\n", PARAMFLAG_MANDATORY, .iptr=NULL, .defintval=0, TYPE_INT, 0}, \
{ORAN_CONFIG_IO_CORE, "DPDK Core used for IO\n", PARAMFLAG_MANDATORY, .iptr=NULL, .defintval=4, TYPE_INT, 0}, \
{ORAN_CONFIG_WORKER_CORES, "CPU Cores to use for workers\n", PARAMFLAG_MANDATORY, .uptr=NULL, .defintarrayval=NULL,TYPE_UINTARRAY, 0}, \
{ORAN_CONFIG_DU_KEYPAIR, "DU keypair for RU authentication\n", PARAMFLAG_MANDATORY, .strlistptr=NULL, .defstrlistval=NULL, TYPE_STRINGLIST, 0}, \
{ORAN_CONFIG_DU_ADDR, "Ether addr of DU\n", PARAMFLAG_MANDATORY, .strlistptr=NULL, .defstrlistval=NULL, TYPE_STRINGLIST, 0}, \
{ORAN_CONFIG_VLAN_TAG, "VLAN tag\n", PARAMFLAG_MANDATORY, .iptr=NULL, .defintarrayval=0, TYPE_INTARRAY, 0}, \
{ORAN_CONFIG_RU_ADDR, "Ether addr of RU\n", PARAMFLAG_MANDATORY, .strlistptr=NULL, .defstrlistval=NULL, TYPE_STRINGLIST, 0}, \
{ORAN_CONFIG_RU_IP_ADDR, "IP addr of RU\n", PARAMFLAG_MANDATORY, .strlistptr=NULL, .defstrlistval=NULL, TYPE_STRINGLIST, 0}, \
{ORAN_CONFIG_MTU, "MTU of Eth interface\n", 0, .uptr=NULL, .defuintval=1500, TYPE_UINT, 0}, \
{ORAN_CONFIG_FILE_PREFIX, "DPDK file-prefix\n", 0, .strptr=NULL, .defstrval="wls_0", TYPE_STRING, 0}, \
{ORAN_CONFIG_NETHPERPORT, "number of links per port\n", 0, .uptr=NULL, .defuintval=1, TYPE_UINT, 0}, \
@@ -70,6 +78,10 @@
{ .s5 = { NULL } }, \
{ .s5 = { NULL } }, \
{ .s5 = { NULL } }, \
{ .s5 = { NULL } }, \
{ .s5 = { NULL } }, \
{ .s5 = { NULL } }, \
{ .s5 = { NULL } }, \
{ .s3a = { config_checkstr_assign_integer, \
{"PA", "VA"}, {0, 1}, 2} }, \
{ .s5 = { NULL } }, \
@@ -84,8 +96,6 @@
#define ORAN_FH_CONFIG_T1A_CP_UL "T1a_cp_ul"
#define ORAN_FH_CONFIG_T1A_UP "T1a_up"
#define ORAN_FH_CONFIG_TA4 "Ta4"
#define ORAN_FH_CONFIG_CP_VLAN_TAG "cp_vlan_tag"
#define ORAN_FH_CONFIG_UP_VLAN_TAG "up_vlan_tag"
#define ORAN_FH_HLP_CPLT " parameter of RU in list form (Min&Max, length 2!)\n"
@@ -95,15 +105,13 @@
{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}, \
{ORAN_FH_CONFIG_TA4, "Ta4" ORAN_FH_HLP_CPLT, PARAMFLAG_MANDATORY, .uptr=NULL, .defintarrayval=0, TYPE_UINTARRAY, 0}, \
{ORAN_FH_CONFIG_CP_VLAN_TAG, "not used by xran", 0, .uptr=NULL, .defuintval=0, TYPE_UINT, 0}, \
{ORAN_FH_CONFIG_UP_VLAN_TAG, "not used by xran", 0, .uptr=NULL, .defuintval=0, TYPE_UINT, 0}, \
}
// clang-format on
#define CONFIG_STRING_ORAN_RU "ru_config"
#define ORAN_RU_CONFIG_IQWIDTH "iq_width"
#define ORAN_RU_CONFIG_IQWIDTH_PRACH "iq_width_prach"
#define ORAN_RU_CONFIG_IQWIDTH "iq_width" // not needed if M-plane used
#define ORAN_RU_CONFIG_IQWIDTH_PRACH "iq_width_prach" // not needed if M-plane used
// clang-format off
#define ORAN_RU_DESC {\
@@ -114,7 +122,7 @@
#define CONFIG_STRING_ORAN_PRACH "prach_config"
#define ORAN_PRACH_CONFIG_EAXC_OFFSET "eAxC_offset"
#define ORAN_PRACH_CONFIG_EAXC_OFFSET "eAxC_offset" // not needed if M-plane used
#define ORAN_PRACH_CONFIG_KBAR "kbar"
// clang-format off