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authorJacob Erlbeck <jerlbeck@sysmocom.de>2016-01-19 15:53:30 +0100
committerJacob Erlbeck <jerlbeck@sysmocom.de>2016-02-08 00:45:36 +0100
commit36df7740dd7f81fe36d35e808cc53f518f4e360e (patch)
treec204fcc8e691a99ce2a42eb7b7491bea6248c01c /tests/tbf/TbfTest.cpp
parent08c72fb4a91c267410535be26d2bb399914ff6d4 (diff)
edge: Make window size configurable
Currently the window size is fixed to 64 even for EGPRS. Support dynamic window sizes depending on the number of PDCH. The WS can be set to b + f * N_PDCH. If the result is not valid according to TS 44.060, Table 9.1.9.2.1, the value will be corrected to use the next lower valid value (or 64). The following VTY commands are added (config-pcu node): window-size <0-1024> set base (b) value and leave f unchanged window-size <0-1024> <0-256> set base (b) and factor (f) Sponsored-by: On-Waves ehf
Diffstat (limited to 'tests/tbf/TbfTest.cpp')
-rw-r--r--tests/tbf/TbfTest.cpp56
1 files changed, 56 insertions, 0 deletions
diff --git a/tests/tbf/TbfTest.cpp b/tests/tbf/TbfTest.cpp
index 895ba8e..c868ca2 100644
--- a/tests/tbf/TbfTest.cpp
+++ b/tests/tbf/TbfTest.cpp
@@ -1105,6 +1105,61 @@ static void test_tbf_gprs_egprs()
gprs_bssgp_destroy();
}
+static void test_tbf_ws()
+{
+ BTS the_bts;
+ gprs_rlcmac_bts *bts;
+ uint8_t ts_no = 4;
+ uint8_t ms_class = 12;
+ gprs_rlcmac_dl_tbf *dl_tbf;
+
+ printf("=== start %s ===\n", __func__);
+
+ bts = the_bts.bts_data();
+ setup_bts(&the_bts, ts_no);
+
+ bts->ws_base = 128;
+ bts->ws_pdch = 64;
+ bts->alloc_algorithm = alloc_algorithm_b;
+ bts->trx[0].pdch[2].enable();
+ bts->trx[0].pdch[3].enable();
+ bts->trx[0].pdch[4].enable();
+ bts->trx[0].pdch[5].enable();
+
+ gprs_bssgp_create_and_connect(bts, 33001, 0, 33001,
+ 1234, 1234, 1234, 1, 1, 0, 0, 0);
+
+ /* Does no support EGPRS */
+ dl_tbf = tbf_alloc_dl_tbf(bts, NULL, 0, ms_class, 0, 0);
+ OSMO_ASSERT(dl_tbf != NULL);
+ fprintf(stderr, "DL TBF slots: 0x%02x, N: %d, WS: %d\n",
+ dl_tbf->dl_slots(),
+ pcu_bitcount(dl_tbf->dl_slots()),
+ dl_tbf->window()->ws());
+ OSMO_ASSERT(pcu_bitcount(dl_tbf->dl_slots()) == 4);
+ OSMO_ASSERT(dl_tbf->window()->ws() == 64);
+ tbf_free(dl_tbf);
+
+ /* EGPRS-only */
+ bts->egprs_enabled = 1;
+
+ /* Does support EGPRS */
+ dl_tbf = tbf_alloc_dl_tbf(bts, NULL, 0, ms_class, ms_class, 0);
+
+ OSMO_ASSERT(dl_tbf != NULL);
+ fprintf(stderr, "DL TBF slots: 0x%02x, N: %d, WS: %d\n",
+ dl_tbf->dl_slots(),
+ pcu_bitcount(dl_tbf->dl_slots()),
+ dl_tbf->window()->ws());
+ OSMO_ASSERT(pcu_bitcount(dl_tbf->dl_slots()) == 4);
+ OSMO_ASSERT(dl_tbf->window()->ws() == 128 + 4 * 64);
+ tbf_free(dl_tbf);
+
+ printf("=== end %s ===\n", __func__);
+
+ gprs_bssgp_destroy();
+}
+
static const struct log_info_cat default_categories[] = {
{"DCSN1", "\033[1;31m", "Concrete Syntax Notation One (CSN1)", LOGL_INFO, 0},
{"DL1IF", "\033[1;32m", "GPRS PCU L1 interface (L1IF)", LOGL_DEBUG, 1},
@@ -1163,6 +1218,7 @@ int main(int argc, char **argv)
test_tbf_dl_flow_and_rach_single_phase();
test_tbf_dl_reuse();
test_tbf_gprs_egprs();
+ test_tbf_ws();
if (getenv("TALLOC_REPORT_FULL"))
talloc_report_full(tall_pcu_ctx, stderr);