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( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/33923 ) Change subject: pcu: Introduce test TC_ul_tbf_bsn_wraparound_gprs ...................................................................... pcu: Introduce test TC_ul_tbf_bsn_wraparound_gprs Related: OS#6102 Change-Id: I253e3607b75dd1a850c53f284fadf753dd49c247 --- M pcu/PCU_Tests.ttcn 1 file changed, 164 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/23/33923/1 diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn index 2598e7b..c360e97 100644 --- a/pcu/PCU_Tests.ttcn +++ b/pcu/PCU_Tests.ttcn @@ -3596,6 +3596,159 @@ f_TC_ul_tbf_reestablish_with_pkt_dl_ack_nack(true); } +/* Test UL data blocks BSN 0..127 and then continue again at BSN 0... up to 300 + * BSNs in total to test several wrap arounds. */ +testcase TC_ul_tbf_bsn_wraparound_gprs() runs on RAW_PCU_Test_CT +{ + var PCUIF_info_ind info_ind; + var RlcmacDlBlock dl_block; + var octetstring payload; + var template (value) RlcmacUlBlock ul_data; + var template (value) LlcBlockHdr blk_hdr; + var template (value) LlcBlocks blocks; + var uint32_t sched_fn; + var uint32_t dl_fn; + var template (value) TsTrxBtsNum nr; + var BTS_PDTCH_Block data_msg; + var template RlcmacDlBlock acknack_tmpl; + var GprsMS ms; + var integer blocks_sent := 0; + var integer blocks_received := 0; + const integer target_bsn_set := 300; + + /* 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 */ + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + dl_fn := f_ms_wait_usf(ms); + sched_fn := f_next_pdch_block(dl_fn); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(16); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ + blk_hdr := t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload), + more := false, e := true); + blocks := { t_RLCMAC_LLCBLOCK(payload, blk_hdr) }; + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + ul_data := t_RLCMAC_UL_DATA_TLLI(cs := ms.ul_tbf.tx_cs_mcs, + tfi := ms.ul_tbf.tfi, + cv := 15, + bsn := ms.ul_tbf.bsn, + blocks := blocks, + tlli := ms.tlli); + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data, f_next_pdch_block(sched_fn)); + blocks_sent := blocks_sent + 1; + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + acknack_tmpl := tr_RLCMAC_UL_ACK_NACK_GPRS(ms.ul_tbf.tfi, + tr_UlAckNackGprs(ms.tlli, + tr_AckNackDescription(final_ack := '0'B))) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn, acknack_tmpl); + + ul_data := t_RLCMAC_UL_DATA(cs := ms.ul_tbf.tx_cs_mcs, + tfi := ms.ul_tbf.tfi, + cv := 15, + bsn := ms.ul_tbf.bsn, + blocks := blocks); + + nr := f_ms_tx_TsTrxBtsNum(ms); + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_UL_ACK_NACK_GPRS)) -> value data_msg { + + if (f_dl_block_rrbp_valid(data_msg.dl_block)) { + var uint32_t ack_fn := f_dl_block_ack_fn(data_msg.dl_block, data_msg.raw.fn) + log("ACKING FN ", data_msg.raw.fn, " on FN ", ack_fn); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), ack_fn); + } + ul_data.data.mac_hdr.bsn := ms.ul_tbf.bsn; + f_ms_tx_ul_block(ms, ul_data, 0); + f_ultbf_inc_bsn(ms.ul_tbf); + blocks_sent := blocks_sent + 1; + + if (blocks_sent == target_bsn_set) { + break; + } + + nr := f_ms_tx_TsTrxBtsNum(ms); + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL)) -> value data_msg { + + ul_data.data.mac_hdr.bsn := ms.ul_tbf.bsn; + f_ms_tx_ul_block(ms, ul_data, 0); + f_ultbf_inc_bsn(ms.ul_tbf); + blocks_sent := blocks_sent + 1; + + if (blocks_sent == target_bsn_set) { + break; + } + + nr := f_ms_tx_TsTrxBtsNum(ms); + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + omit)) -> value data_msg { + nr := f_ms_tx_TsTrxBtsNum(ms); + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + [] BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)) { + blocks_received := blocks_received + 1; + repeat; + } + } + + /* Validate most part of them were accepted and forwarded: */ + if (blocks_received < target_bsn_set * 95 / 100) { + setverdict(fail, "Forwarded ", blocks_received, " out of ", target_bsn_set, " transmitted"); + f_shutdown(__BFILE__, __LINE__); + } + log("Forwarded ", blocks_received, " out of ", target_bsn_set, " transmitted"); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + /* Test CS paging over the BTS<->PCU socket. * When a (class B or C, not A) MS has an active TBF (or is on the PDCH), the MS can not react on CS paging over CCCH. * Paging should be send on the PACCH. @@ -7258,6 +7411,7 @@ execute( TC_ul_flow_multiple_llc_blocks() ); execute( TC_dl_no_ack_retrans_imm_ass() ); execute( TC_dl_llc_sapi_priority() ); + execute( TC_ul_tbf_bsn_wraparound_gprs()); execute( TC_paging_cs_from_bts() ); execute( TC_paging_cs_from_sgsn_sign_ptmsi() ); execute( TC_paging_cs_from_sgsn_sign() ); -- To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/33923 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-ttcn3-hacks Gerrit-Branch: master Gerrit-Change-Id: I253e3607b75dd1a850c53f284fadf753dd49c247 Gerrit-Change-Number: 33923 Gerrit-PatchSet: 1 Gerrit-Owner: pespin <pespin@sysmocom.de> Gerrit-MessageType: newchange