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Merge remote-tracking branch 'origin/add-support-eth-pdu-sess' into integration_2026_w05 (!3769)

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Add Ethernet PDU session support and make PDU session request configurable

This MR adds support for Ethernet PDU sessions, and makes PDU sessions
configurable: per-PDU session ID, type (IPv4/IPv4v6/IPv6/Ethernet [1]),
DNN, NSSAI.

Concretely, it adds a new configuration file section pdu_sessions below
uicc0 that looks like this if everything is specified (default values
are shown):

    uicc0:
      [...]
      pdu_sessions:
        - id: 1
          type: "IPv4"
          nssai_sst: 1
          nssai_sd: 0xffffff
          dnn: "oai"

It is possible to list multiple PDU sessions (add new line   - id: 2 to
request a second PDU session). It is backwards-compatible to the current
PDU session configuration (uicc0.dnn/nssai_sst/etc), the idea being that
either legacy or new configuration could be used, but (1) if
pdu_sessions exist, it will overwrite the legacy configuration, and (2)
multiple PDU sessions, and type, can only be configured using the new
config. The old parameters --extra-pdu-id and --default-pdu-id are not
accepted anymore. Documentation has been added to the UE tutorial.

It is possible to test an Ethernet PDU session [1]. It is possible to
test the PDU session inside the UE by verifying it has an TAP interface
oaitap_ue1, and ARPing the data network (arping has been added to
oai-nr-ue container for that purpose):

    ip addr add 192.168.72.140/26 dev oaitap_ue1  # same subnet as data network!
    ip link set dev oaitap_ue1 up
    arping -c 20 -I oaitap_ue1 192.168.72.135     # will send ARP request in Ethernet frame to get IP address of data network

[1] See description MR !3769 for more information. On the UE side, only
the type has to be changed to "Ethernet".
This commit is contained in:
Robert Schmidt
2026-01-29 07:52:48 +01:00
parent e1a327ca4f 780a2467aa
commit 0eb33e69c7
49 changed files with 483 additions and 190 deletions
Download Patch File Download Diff File Expand all files Collapse all files
executables/nr-uesoftmodem.c
+2 -4
View File
@@ -168,10 +168,8 @@ static void get_options(configmodule_interface_t *cfg)
config_get(cfg, cmdline_params, numparams, NULL);
if (nrUE_params.vcdflag > 0)
ouput_vcd = 1;
AssertFatal(nrUE_params.extra_pdu_id != get_softmodem_params()->default_pdu_session_id,
"Default PDU ID (%d) and Extra PDU ID (%d) must be different!\n",
get_softmodem_params()->default_pdu_session_id,
nrUE_params.extra_pdu_id);
AssertFatal(nrUE_params.extra_pdu_id == -1,
"Add additional PDU sessions in uicc.pdu_sessions array instead\n");
}
// set PHY vars from command line
executables/softmodem-common.c
+4
View File
@@ -156,6 +156,10 @@ void get_common_options(configmodule_interface_t *cfg)
nfapi_setmode(nfapi_mode);
if (stats_disabled)
IS_SOFTMODEM_NOSTATS = true;
// To be removed in a future release (after 1 month)
AssertFatal(get_softmodem_params()->default_pdu_session_id == -1,
"Use uicc0.pdu_sessions.[0].id to change the requested PDU session ID (is %d)\n", get_softmodem_params()->default_pdu_session_id);
}
void softmodem_verify_mode(const softmodem_params_t *p)
executables/softmodem-common.h
+1 -1
View File
@@ -180,7 +180,7 @@ extern int usrp_tx_thread;
{"E" , CONFIG_HLP_TQFS, PARAMFLAG_BOOL, .iptr=&softmodem_params.threequarter_fs, .defintval=0, TYPE_INT, 0}, \
{"imscope" , CONFIG_HLP_IMSCOPE, PARAMFLAG_BOOL, .uptr=&enable_imscope, .defintval=0, TYPE_UINT, 0}, \
{"imscope-record" , CONFIG_HLP_IMSCOPE_RECORD,PARAMFLAG_BOOL, .uptr=&enable_imscope_record, .defintval=0, TYPE_UINT, 0}, \
{"default-pdu-id", NULL, 0, .iptr=&DEFAULT_PDU_ID, .defintval=10, TYPE_INT, 0}, \
{"default-pdu-id", NULL, 0, .iptr=&DEFAULT_PDU_ID, .defintval=-1, TYPE_INT, 0}, \
}
// clang-format on