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bts, tbf: Separate functions for dl/ul tbf_by_tlli lookup 

In the future we want to separate ul and dl tbf into different
classes that inherit from a common base.

Ticket: SYS#389
Sponsored-by: On-Waves ehf
This commit is contained in:
Daniel Willmann 2014-07-02 17:58:14 +02:00 committed by Holger Hans Peter Freyther
parent e8915b9d9d
commit b59d61b4b4
4 changed files with 35 additions and 23 deletions
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24
src/bts.cpp
View File

@ -216,6 +216,18 @@ int BTS::add_paging(uint8_t chan_needed, uint8_t *identity_lv)
return 0;
}
/* search for active downlink tbf */
gprs_rlcmac_tbf *BTS::dl_tbf_by_tlli(uint32_t tlli)
{
return tbf_by_tlli(tlli, GPRS_RLCMAC_DL_TBF);
}
/* search for active uplink tbf */
gprs_rlcmac_tbf *BTS::ul_tbf_by_tlli(uint32_t tlli)
{
return tbf_by_tlli(tlli, GPRS_RLCMAC_UL_TBF);
}
/* search for active downlink or uplink tbf */
gprs_rlcmac_tbf *BTS::tbf_by_tlli(uint32_t tlli, enum gprs_rlcmac_tbf_direction dir)
{
@ -360,7 +372,7 @@ int BTS::rcv_imm_ass_cnf(const uint8_t *data, uint32_t fn)
tlli |= (*data++) << 4;
tlli |= (*data++) >> 4;
tbf = tbf_by_tlli(tlli, GPRS_RLCMAC_DL_TBF);
tbf = dl_tbf_by_tlli(tlli);
if (!tbf) {
LOGP(DRLCMAC, LOGL_ERROR, "Got IMM.ASS confirm, but TLLI=%08x "
"does not exit\n", tlli);
@ -725,8 +737,7 @@ void gprs_rlcmac_pdch::rcv_control_ack(Packet_Control_Acknowledgement_t *packet,
tbf->n3105 = 0;
tbf->dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE;
if (tbf->direction == GPRS_RLCMAC_UL_TBF)
tbf = bts()->tbf_by_tlli(tbf->tlli(),
GPRS_RLCMAC_DL_TBF);
tbf = bts()->dl_tbf_by_tlli(tbf->tlli());
#warning "TBF is changing on the way... *sigh*"
if (!tbf) {
LOGP(DRLCMAC, LOGL_ERROR, "Got ACK, but DL "
@ -753,8 +764,7 @@ void gprs_rlcmac_pdch::rcv_control_ack(Packet_Control_Acknowledgement_t *packet,
tbf->ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE;
#warning "TBF is changing on the way... *sigh*"
if (tbf->direction == GPRS_RLCMAC_DL_TBF)
tbf = bts()->tbf_by_tlli(tbf->tlli(),
GPRS_RLCMAC_UL_TBF);
tbf = bts()->ul_tbf_by_tlli(tbf->tlli());
if (!tbf) {
LOGP(DRLCMAC, LOGL_ERROR, "Got ACK, but UL "
"TBF is gone TLLI=0x%08x\n", tlli);
@ -836,7 +846,7 @@ void gprs_rlcmac_pdch::rcv_resource_request(Packet_Resource_Request_t *request,
struct gprs_rlcmac_tbf *dl_tbf;
uint8_t ta;
tbf = bts()->tbf_by_tlli(tlli, GPRS_RLCMAC_UL_TBF);
tbf = bts()->ul_tbf_by_tlli(tlli);
if (tbf) {
LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from "
"TLLI=0x%08x while %s still "
@ -846,7 +856,7 @@ void gprs_rlcmac_pdch::rcv_resource_request(Packet_Resource_Request_t *request,
tbf = NULL;
}
if ((dl_tbf = bts()->tbf_by_tlli(tlli, GPRS_RLCMAC_DL_TBF))) {
if ((dl_tbf = bts()->dl_tbf_by_tlli(tlli))) {
LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from "
"TLLI=0x%08x while %s still exists. "
"Killing pending DL TBF\n", tlli,

4
src/bts.h
View File

@ -192,7 +192,8 @@ public:
/** add paging to paging queue(s) */
int add_paging(uint8_t chan_needed, uint8_t *identity_lv);
gprs_rlcmac_tbf *tbf_by_tlli(uint32_t tlli, enum gprs_rlcmac_tbf_direction dir);
gprs_rlcmac_tbf *dl_tbf_by_tlli(uint32_t tlli);
gprs_rlcmac_tbf *ul_tbf_by_tlli(uint32_t tlli);
gprs_rlcmac_tbf *tbf_by_poll_fn(uint32_t fn, uint8_t trx, uint8_t ts);
gprs_rlcmac_tbf *tbf_by_tfi(uint8_t tfi, uint8_t trx, enum gprs_rlcmac_tbf_direction dir);
@ -238,6 +239,7 @@ private:
SBAController m_sba;
TimingAdvance m_ta;
struct rate_ctr_group *m_ratectrs;
gprs_rlcmac_tbf *tbf_by_tlli(uint32_t tlli, enum gprs_rlcmac_tbf_direction dir);
private:
/* disable copying to avoid slicing */

18
src/tbf.cpp
View File

@ -82,7 +82,7 @@ static struct gprs_rlcmac_tbf *tbf_lookup_dl(BTS *bts,
const uint32_t tlli, const char *imsi)
{
/* TODO: look up by IMSI first, then tlli, then old_tlli */
return bts->tbf_by_tlli(tlli, GPRS_RLCMAC_DL_TBF);
return bts->dl_tbf_by_tlli(tlli);
}
int gprs_rlcmac_tbf::append_data(const uint8_t ms_class,
@ -130,7 +130,7 @@ static int tbf_new_dl_assignment(struct gprs_rlcmac_bts *bts,
/* check for uplink data, so we copy our informations */
#warning "Do the same look up for IMSI, TLLI and OLD_TLLI"
#warning "Refactor the below lines... into a new method"
tbf = bts->bts->tbf_by_tlli(tlli, GPRS_RLCMAC_UL_TBF);
tbf = bts->bts->ul_tbf_by_tlli(tlli);
if (tbf && tbf->dir.ul.contention_resolution_done
&& !tbf->dir.ul.final_ack_sent) {
use_trx = tbf->trx->trx_no;
@ -308,7 +308,7 @@ int gprs_rlcmac_tbf::update()
if (direction != GPRS_RLCMAC_DL_TBF)
return -EINVAL;
ul_tbf = bts->tbf_by_tlli(m_tlli, GPRS_RLCMAC_UL_TBF);
ul_tbf = bts->ul_tbf_by_tlli(m_tlli);
tbf_unlink_pdch(this);
rc = bts_data->alloc_algorithm(bts_data, ul_tbf, this, bts_data->alloc_algorithm_curst, 0);
@ -1182,7 +1182,7 @@ struct msgb *gprs_rlcmac_tbf::create_dl_ass(uint32_t fn)
return NULL;
}
#warning "THIS should probably go over the IMSI too"
new_tbf = bts->tbf_by_tlli(m_tlli, GPRS_RLCMAC_DL_TBF);
new_tbf = bts->dl_tbf_by_tlli(m_tlli);
} else
new_tbf = this;
if (!new_tbf) {
@ -1252,7 +1252,7 @@ struct msgb *gprs_rlcmac_tbf::create_ul_ass(uint32_t fn)
/* on down TBF we get the uplink TBF to be assigned. */
#warning "Probably want to find by IMSI too"
if (direction == GPRS_RLCMAC_DL_TBF)
new_tbf = bts->tbf_by_tlli(m_tlli, GPRS_RLCMAC_UL_TBF);
new_tbf = bts->ul_tbf_by_tlli(m_tlli);
else
new_tbf = this;
@ -1497,7 +1497,7 @@ void gprs_rlcmac_tbf::update_tlli(uint32_t tlli)
*/
if (m_tlli_valid && direction == GPRS_RLCMAC_DL_TBF) {
gprs_rlcmac_tbf *ul_tbf;
ul_tbf = bts->tbf_by_tlli(m_tlli, GPRS_RLCMAC_UL_TBF);
ul_tbf = bts->ul_tbf_by_tlli(m_tlli);
if (ul_tbf) {
ul_tbf->m_tlli = tlli;
@ -1537,7 +1537,7 @@ int gprs_rlcmac_tbf::extract_tlli(const uint8_t *data, const size_t len)
update_tlli(new_tlli);
LOGP(DRLCMACUL, LOGL_INFO, "Decoded premier TLLI=0x%08x of "
"UL DATA TFI=%d.\n", tlli(), rh->tfi);
if ((dl_tbf = bts->tbf_by_tlli(tlli(), GPRS_RLCMAC_DL_TBF))) {
if ((dl_tbf = bts->dl_tbf_by_tlli(tlli()))) {
LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from "
"TLLI=0x%08x while %s still exists. "
"Killing pending DL TBF\n", tlli(),
@ -1545,9 +1545,9 @@ int gprs_rlcmac_tbf::extract_tlli(const uint8_t *data, const size_t len)
tbf_free(dl_tbf);
dl_tbf = NULL;
}
/* tbf_by_tlli will not find your TLLI, because it is not
/* ul_tbf_by_tlli will not find your TLLI, because it is not
* yet marked valid */
if ((ul_tbf = bts->tbf_by_tlli(tlli(), GPRS_RLCMAC_UL_TBF))) {
if ((ul_tbf = bts->ul_tbf_by_tlli(tlli()))) {
LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from "
"TLLI=0x%08x while %s still exists. "
"Killing pending UL TBF\n", tlli(),

12
tests/tbf/TbfTest.cpp
View File

@ -59,8 +59,8 @@ static void test_tbf_tlli_update()
ul_tbf->tlli_mark_valid();
OSMO_ASSERT(the_bts.tbf_by_tlli(0x2342, GPRS_RLCMAC_DL_TBF) == dl_tbf);
OSMO_ASSERT(the_bts.tbf_by_tlli(0x2342, GPRS_RLCMAC_UL_TBF) == ul_tbf);
OSMO_ASSERT(the_bts.dl_tbf_by_tlli(0x2342) == dl_tbf);
OSMO_ASSERT(the_bts.ul_tbf_by_tlli(0x2342) == ul_tbf);
/*
@ -68,12 +68,12 @@ static void test_tbf_tlli_update()
* has changed.
*/
dl_tbf->update_tlli(0x4232);
OSMO_ASSERT(!the_bts.tbf_by_tlli(0x2342, GPRS_RLCMAC_DL_TBF));
OSMO_ASSERT(!the_bts.tbf_by_tlli(0x2342, GPRS_RLCMAC_UL_TBF));
OSMO_ASSERT(!the_bts.dl_tbf_by_tlli(0x2342));
OSMO_ASSERT(!the_bts.ul_tbf_by_tlli(0x2342));
OSMO_ASSERT(the_bts.tbf_by_tlli(0x4232, GPRS_RLCMAC_DL_TBF) == dl_tbf);
OSMO_ASSERT(the_bts.tbf_by_tlli(0x4232, GPRS_RLCMAC_UL_TBF) == ul_tbf);
OSMO_ASSERT(the_bts.dl_tbf_by_tlli(0x4232) == dl_tbf);
OSMO_ASSERT(the_bts.ul_tbf_by_tlli(0x4232) == ul_tbf);
OSMO_ASSERT(the_bts.timing_advance()->recall(0x4232) == 4);
}