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pespin gerrit-no-reply at lists.osmocom.orgpespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/19077 )
Change subject: pcu: Introduce test TC_ull_all_sizes
......................................................................
pcu: Introduce test TC_ull_all_sizes
Change-Id: I293c8dea2d44c5232a96c44b605e0d8c6dc1fa0e
---
M pcu/PCU_Tests.ttcn
1 file changed, 91 insertions(+), 0 deletions(-)
Approvals:
laforge: Looks good to me, but someone else must approve
neels: Looks good to me, approved
Jenkins Builder: Verified
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index ef689e2..76a2d9e 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -876,6 +876,96 @@
BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.cell_id, total_payload));
}
+/* Verify PCU handles correctly CS1..4 with all possible LLC payload sizes fitting alone in one RLC block */
+testcase TC_ul_all_sizes() runs on RAW_PCU_Test_CT {
+ var RlcmacDlBlock dl_block;
+ var uint32_t dl_fn, sched_fn;
+ var octetstring payload;
+ var template (value) RlcmacUlBlock ul_data;
+ var GprsMS ms;
+
+ /* Initialize NS/BSSGP side */
+ f_init_bssgp();
+ /* Initialize GPRS MS side */
+ f_init_gprs_ms();
+ ms := g_ms[0]; /* We only use first MS in this test */
+
+ /* Initialize the PCU interface abstraction */
+ f_init_raw(testcasename());
+
+ /* Establish BSSGP connection to the PCU */
+ f_bssgp_establish();
+ f_bssgp_client_llgmm_assign('FFFFFFFF'O, ms.tlli);
+
+ /* Establish an Uplink TBF */
+ f_ms_establish_ul_tbf(ms);
+
+ /* Send one UL block (with TLLI since we are in One-Phase Access
+ contention resoultion) and make sure it is ACKED fine. */
+ payload := f_rnd_octstring(16); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */
+ /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */
+ ul_data := t_RLCMAC_UL_DATA_TLLI(tfi := ms.ul_tbf.tfi,
+ cv := 15,
+ bsn := ms.ul_tbf.bsn,
+ blocks := { t_RLCMAC_LLCBLOCK(payload,
+ t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload), more := false, e := true))
+ },
+ tlli := ms.tlli);
+ f_ultbf_inc_bsn(ms.ul_tbf);
+ f_ms_tx_ul_block(ms, ul_data);
+
+ /* ACK and check it was received fine */
+ f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn);
+ /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */
+ f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn);
+ /* receive one message on BSSGP with all aggregated data in payload: */
+ BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.cell_id, payload));
+
+ /* Test sending LLC PDUS of incrementing size */
+ var integer max_size := 49;
+ for (var integer i := 1; i <= max_size; i := i + 1) {
+ var integer cv;
+ /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */
+ log("Sending DATA.ind with LLC payload size ", i);
+ if (i < max_size - g_bs_cv_max) {
+ cv := 15;
+ } else {
+ cv := max_size - i;
+ }
+
+ payload := f_rnd_octstring(i);
+ /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */
+ ul_data := t_RLCMAC_UL_DATA(tfi := ms.ul_tbf.tfi,
+ cv := cv,
+ bsn := ms.ul_tbf.bsn,
+ blocks := { t_RLCMAC_LLCBLOCK(payload,
+ t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload), more := false, e := true))
+ });
+ f_ultbf_inc_bsn(ms.ul_tbf);
+ f_ms_tx_ul_block(ms, ul_data);
+
+ /* receive one message on BSSGP with all aggregated data in payload: */
+ BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.cell_id, payload));
+
+ /* we will receive UL ACK/NACK from time to time, handle it. */
+ f_rx_rlcmac_dl_block(dl_block, dl_fn);
+ if (match(dl_block, tr_RLCMAC_DUMMY_CTRL())) {
+ continue;
+ }
+ if (not match(dl_block, tr_RLCMAC_UL_ACK_NACK_GPRS(ul_tfi := ?)) and
+ not match(dl_block, tr_RLCMAC_UL_ACK_NACK_EGPRS(ul_tfi := ?))) {
+ setverdict(fail, "Failed to match Packet Uplink ACK / NACK:", dl_block);
+ f_shutdown(__BFILE__, __LINE__);
+ }
+
+ log("Rx Packet Uplink ACK / NACK");
+ sched_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp);
+ /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */
+ f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn);
+ }
+ setverdict(pass);
+}
+
/* Test scenario where MS wants to send some data on PDCH against SGSN and it is
* answered, so TBFs for uplink and later for downlink are created.
*/
@@ -1862,6 +1952,7 @@
execute( TC_t3169() );
execute( TC_t3193() );
execute( TC_countdown_procedure() );
+ execute( TC_ul_all_sizes() );
execute( TC_mo_ping_pong() );
execute( TC_mo_ping_pong_with_ul_racap() );
execute( TC_force_two_phase_access() );
--
To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/19077
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I293c8dea2d44c5232a96c44b605e0d8c6dc1fa0e
Gerrit-Change-Number: 19077
Gerrit-PatchSet: 5
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Reviewer: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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