[PATCH] osmo-pcu[master]: Move DL assignment to TBF-DL

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Max gerrit-no-reply at lists.osmocom.org
Fri Jul 7 16:27:51 UTC 2017


Review at  https://gerrit.osmocom.org/3157

Move DL assignment to TBF-DL

This function does not really belongs to BTS and it heavily relies on
direct access to TBF-DL members anyway.

Change-Id: I04584103018675a2f35cfb565473bfd81a208d7c
Closes: OS#1540
---
M src/bts.cpp
M src/bts.h
M src/tbf.cpp
M src/tbf.h
M src/tbf_dl.cpp
5 files changed, 38 insertions(+), 39 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-pcu refs/changes/57/3157/1

diff --git a/src/bts.cpp b/src/bts.cpp
index 21d5b17..5f7d9e8 100644
--- a/src/bts.cpp
+++ b/src/bts.cpp
@@ -768,40 +768,6 @@
 	return sb;
 }
 
-/* depending on the current TBF, we assign on PACCH or AGCH */
-void BTS::trigger_dl_ass(
-	struct gprs_rlcmac_dl_tbf *dl_tbf,
-	struct gprs_rlcmac_tbf *old_tbf)
-{
-	/* stop pending timer */
-	dl_tbf->stop_timer();
-
-	/* check for downlink tbf:  */
-	if (old_tbf) {
-		LOGP(DRLCMAC, LOGL_DEBUG, "Send dowlink assignment on "
-			"PACCH, because %s exists\n", tbf_name(old_tbf));
-		old_tbf->dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS;
-
-		old_tbf->was_releasing = old_tbf->state_is(GPRS_RLCMAC_WAIT_RELEASE);
-
-		/* change state */
-		dl_tbf->set_state(GPRS_RLCMAC_ASSIGN);
-		if (!(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)))
-			dl_tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH);
-		/* start timer */
-		tbf_timer_start(dl_tbf, 0, Tassign_pacch);
-	} else {
-		LOGP(DRLCMAC, LOGL_DEBUG, "Send dowlink assignment for %s on PCH, no TBF exist (IMSI=%s)\n", tbf_name(dl_tbf), dl_tbf->imsi());
-		dl_tbf->was_releasing = dl_tbf->state_is(GPRS_RLCMAC_WAIT_RELEASE);
-		/* change state */
-		dl_tbf->set_state(GPRS_RLCMAC_ASSIGN);
-		dl_tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_CCCH);
-		/* send immediate assignment */
-		dl_tbf->bts->snd_dl_ass(dl_tbf, 0, dl_tbf->imsi());
-		dl_tbf->m_wait_confirm = 1;
-	}
-}
-
 void BTS::snd_dl_ass(gprs_rlcmac_tbf *tbf, uint8_t poll, const char *imsi)
 {
 	int plen;
diff --git a/src/bts.h b/src/bts.h
index 7983fa2..f742def 100644
--- a/src/bts.h
+++ b/src/bts.h
@@ -354,7 +354,6 @@
 	int rcv_rach(uint16_t ra, uint32_t Fn, int16_t qta, uint8_t is_11bit,
 		enum ph_burst_type burst_type);
 
-	void trigger_dl_ass(gprs_rlcmac_dl_tbf *tbf, gprs_rlcmac_tbf *old_tbf);
 	void snd_dl_ass(gprs_rlcmac_tbf *tbf, uint8_t poll, const char *imsi);
 
 	GprsMsStorage &ms_store();
@@ -478,7 +477,6 @@
 	/* list of downlink TBFs */
 	LListHead<gprs_rlcmac_tbf> m_dl_tbfs;
 
-private:
 	/* disable copying to avoid slicing */
 	BTS(const BTS&);
 	BTS& operator=(const BTS&);
diff --git a/src/tbf.cpp b/src/tbf.cpp
index fa67e41..b2acb11 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -992,7 +992,7 @@
 
 				dl_tbf->update();
 
-				dl_tbf->bts->trigger_dl_ass(dl_tbf, dl_tbf);
+				dl_tbf->trigger_ass(dl_tbf);
 			} else
 				LOGP(DRLCMAC, LOGL_NOTICE, "%s Continue flow after "
 					"IMM.ASS confirm\n", tbf_name(dl_tbf));
@@ -1280,7 +1280,7 @@
 
 	LOGP(DRLCMAC, LOGL_DEBUG, "%s Trigger downlink assignment on PACCH\n",
 		tbf_name(this));
-	bts->trigger_dl_ass(new_tbf, this);
+	new_tbf->trigger_ass(this);
 
 	return 0;
 }
diff --git a/src/tbf.h b/src/tbf.h
index dba6dbd..cd8d694 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -423,6 +423,7 @@
 	int rcvd_dl_ack(uint8_t final, uint8_t ssn, uint8_t *rbb);
 	int rcvd_dl_ack(uint8_t final_ack, unsigned first_bsn, struct bitvec *rbb);
 	struct msgb *create_dl_acked_block(uint32_t fn, uint8_t ts);
+	void trigger_ass(struct gprs_rlcmac_tbf *old_tbf);
 	void clear_poll_timeout_flag();
 	bool handle_ack_nack();
 	void request_dl_ack();
diff --git a/src/tbf_dl.cpp b/src/tbf_dl.cpp
index a894789..375d642 100644
--- a/src/tbf_dl.cpp
+++ b/src/tbf_dl.cpp
@@ -167,7 +167,7 @@
 	 * we don't use old_downlink, so the possible uplink is used
 	 * to trigger downlink assignment. if there is no uplink,
 	 * AGCH is used. */
-	dl_tbf->bts->trigger_dl_ass(dl_tbf, old_ul_tbf);
+	dl_tbf->trigger_ass(old_ul_tbf);
 	*tbf = dl_tbf;
 	return 0;
 }
@@ -486,6 +486,40 @@
 	return create_dl_acked_block(fn, ts, bsn, bsn2);
 }
 
+/* depending on the current TBF, we assign on PACCH or AGCH */
+void gprs_rlcmac_dl_tbf::trigger_ass(struct gprs_rlcmac_tbf *old_tbf)
+{
+	/* stop pending timer */
+	stop_timer();
+
+	/* check for downlink tbf:  */
+	if (old_tbf) {
+		LOGP(DRLCMACDL, LOGL_DEBUG, "Send dowlink assignment on PACCH, because %s exists\n", tbf_name(old_tbf));
+		old_tbf->dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS;
+		old_tbf->was_releasing = old_tbf->state_is(GPRS_RLCMAC_WAIT_RELEASE);
+
+		/* change state */
+		set_state(GPRS_RLCMAC_ASSIGN);
+		if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)))
+			state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH);
+
+		/* start timer */
+		tbf_timer_start(this, 0, Tassign_pacch);
+	} else {
+		LOGP(DRLCMACDL, LOGL_DEBUG, "Send dowlink assignment for %s on PCH, no TBF exist (IMSI=%s)\n",
+		     tbf_name(this), imsi());
+		was_releasing = state_is(GPRS_RLCMAC_WAIT_RELEASE);
+
+		/* change state */
+		set_state(GPRS_RLCMAC_ASSIGN);
+		state_flags |= (1 << GPRS_RLCMAC_FLAG_CCCH);
+
+		/* send immediate assignment */
+		bts->snd_dl_ass(this, 0, imsi());
+		m_wait_confirm = 1;
+	}
+}
+
 void gprs_rlcmac_dl_tbf::schedule_next_frame()
 {
 	struct msgb *msg;

-- 
To view, visit https://gerrit.osmocom.org/3157
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I04584103018675a2f35cfb565473bfd81a208d7c
Gerrit-PatchSet: 1
Gerrit-Project: osmo-pcu
Gerrit-Branch: master
Gerrit-Owner: Max <msuraev at sysmocom.de>



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