Asterisk is getting a "No D-channels available!" warning message every 4 seconds.
For PTP links, libpri generated the PRI_EVENT_DCHAN_DOWN event every time it failed to bring layer 2 up because the physical layer is down. For PTP links, made generate the PRI_EVENT_DCHAN_UP/PRI_EVENT_DCHAN_DOWN only when it enters/exits the Q.921 superstate consisting of states 7(Q921_MULTI_FRAME_ESTABLISHED) and 8(Q921_TIMER_RECOVERY). Also changed the PTP link restart delay to be link specific instead of D channel specific because the GR-303 PTP switch types have more than one Q.921 link. (closes issue #17270) Reported by: jmls git-svn-id: https://origsvn.digium.com/svn/libpri/branches/1.4@2113 2fbb986a-6c06-0410-b554-c9c1f0a7f128
This commit is contained in:
parent
12805eb71f
commit
517e5ac5ce
@ -119,8 +119,6 @@ struct pri {
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int t201_timer;
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int t201_timer;
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/*! Number of times T201 has expired. */
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/*! Number of times T201 has expired. */
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int t201_expirycnt;
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int t201_expirycnt;
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/*! PTP layer 2 restart delay timer */
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int restart_timer;
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int cref; /* Next call reference value */
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int cref; /* Next call reference value */
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@ -246,6 +246,8 @@ struct q921_link {
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int n202_counter;
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int n202_counter;
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/*! Max idle time */
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/*! Max idle time */
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int t203_timer;
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int t203_timer;
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/*! PTP restart delay timer */
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int restart_timer;
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/* MDL variables */
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/* MDL variables */
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int mdl_timer;
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int mdl_timer;
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111
q921.c
111
q921.c
@ -548,17 +548,18 @@ static void stop_t200(struct q921_link *link)
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}
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}
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}
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}
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static void restart_timer_expire(void *vctrl)
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static void restart_timer_expire(void *vlink)
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{
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{
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struct pri *ctrl = vctrl;
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struct q921_link *link = vlink;
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struct q921_link *link;
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struct pri *ctrl;
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ctrl = link->ctrl;
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if (ctrl->debug & PRI_DEBUG_Q921_STATE) {
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if (ctrl->debug & PRI_DEBUG_Q921_STATE) {
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pri_message(ctrl, "Kick starting layer 2\n");
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pri_message(ctrl, "SAPI/TEI=%d/%d Kick starting link\n", link->sapi, link->tei);
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}
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}
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ctrl->restart_timer = 0;
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link->restart_timer = 0;
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link = &ctrl->link;
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switch (link->state) {
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switch (link->state) {
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case Q921_TEI_ASSIGNED:
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case Q921_TEI_ASSIGNED:
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@ -570,31 +571,42 @@ static void restart_timer_expire(void *vctrl)
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break;
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break;
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default:
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default:
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/* Looks like someone forgot to stop the restart timer. */
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/* Looks like someone forgot to stop the restart timer. */
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pri_error(ctrl, "Layer 2 restart delay timer expired in state %d(%s)\n",
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pri_error(ctrl, "SAPI/TEI=%d/%d Link restart delay timer expired in state %d(%s)\n",
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link->state, q921_state2str(link->state));
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link->sapi, link->tei, link->state, q921_state2str(link->state));
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break;
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break;
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}
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}
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}
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}
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static void restart_timer_stop(struct pri *ctrl)
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static void restart_timer_stop(struct q921_link *link)
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{
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{
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pri_schedule_del(ctrl, ctrl->restart_timer);
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struct pri *ctrl;
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ctrl->restart_timer = 0;
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ctrl = link->ctrl;
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pri_schedule_del(ctrl, link->restart_timer);
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link->restart_timer = 0;
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}
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}
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static void restart_timer_start(struct pri *ctrl)
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static void restart_timer_start(struct q921_link *link)
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{
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{
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struct pri *ctrl;
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ctrl = link->ctrl;
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if (ctrl->debug & PRI_DEBUG_Q921_DUMP) {
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if (ctrl->debug & PRI_DEBUG_Q921_DUMP) {
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pri_message(ctrl, "-- Starting layer 2 restart delay timer\n");
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pri_message(ctrl, "SAPI/TEI=%d/%d Starting link restart delay timer\n",
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link->sapi, link->tei);
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}
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}
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pri_schedule_del(ctrl, ctrl->restart_timer);
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pri_schedule_del(ctrl, link->restart_timer);
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ctrl->restart_timer =
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link->restart_timer =
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pri_schedule_event(ctrl, ctrl->timers[PRI_TIMER_T200], restart_timer_expire, ctrl);
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pri_schedule_event(ctrl, ctrl->timers[PRI_TIMER_T200], restart_timer_expire, link);
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}
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}
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static pri_event *q921_ptp_delay_restart(struct pri *ctrl)
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static pri_event *q921_ptp_delay_restart(struct q921_link *link)
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{
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{
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pri_event *ev;
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pri_event *ev;
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struct pri *ctrl;
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ctrl = link->ctrl;
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if (PTP_MODE(ctrl)) {
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if (PTP_MODE(ctrl)) {
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/*
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/*
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@ -602,12 +614,20 @@ static pri_event *q921_ptp_delay_restart(struct pri *ctrl)
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* got an L3 that depends on us keeping L2 automatically alive
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* got an L3 that depends on us keeping L2 automatically alive
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* and happy for PTP links.
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* and happy for PTP links.
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*/
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*/
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restart_timer_start(ctrl);
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restart_timer_start(link);
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/* Notify the upper layer that layer 2 is down. */
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switch (link->state) {
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ctrl->schedev = 1;
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case Q921_MULTI_FRAME_ESTABLISHED:
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ctrl->ev.gen.e = PRI_EVENT_DCHAN_DOWN;
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case Q921_TIMER_RECOVERY:
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ev = &ctrl->ev;
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/* Notify the upper layer that layer 2 went down. */
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ctrl->schedev = 1;
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ctrl->ev.gen.e = PRI_EVENT_DCHAN_DOWN;
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ev = &ctrl->ev;
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break;
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default:
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ev = NULL;
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break;
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}
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} else {
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} else {
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ev = NULL;
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ev = NULL;
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}
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}
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@ -817,6 +837,10 @@ static void t200_expire(void *vlink)
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q921_establish_data_link(link);
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q921_establish_data_link(link);
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link->l3_initiated = 0;
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link->l3_initiated = 0;
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q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
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q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
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if (PTP_MODE(ctrl)) {
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ctrl->schedev = 1;
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ctrl->ev.gen.e = PRI_EVENT_DCHAN_DOWN;
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}
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}
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}
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break;
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break;
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case Q921_AWAITING_ESTABLISHMENT:
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case Q921_AWAITING_ESTABLISHMENT:
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@ -825,12 +849,12 @@ static void t200_expire(void *vlink)
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q921_send_sabme(link);
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q921_send_sabme(link);
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start_t200(link);
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start_t200(link);
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} else {
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} else {
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q921_ptp_delay_restart(link);
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q921_discard_iqueue(link);
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q921_discard_iqueue(link);
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q921_mdl_error(link, 'G');
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q921_mdl_error(link, 'G');
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q921_setstate(link, Q921_TEI_ASSIGNED);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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/* DL-RELEASE indication */
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/* DL-RELEASE indication */
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_IND);
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_IND);
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q921_ptp_delay_restart(ctrl);
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}
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}
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break;
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break;
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case Q921_AWAITING_RELEASE:
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case Q921_AWAITING_RELEASE:
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@ -839,11 +863,11 @@ static void t200_expire(void *vlink)
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q921_send_disc(link, 1);
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q921_send_disc(link, 1);
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start_t200(link);
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start_t200(link);
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} else {
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} else {
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q921_ptp_delay_restart(link);
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q921_mdl_error(link, 'H');
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q921_mdl_error(link, 'H');
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/* DL-RELEASE confirm */
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/* DL-RELEASE confirm */
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_CONFIRM);
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_CONFIRM);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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q921_ptp_delay_restart(ctrl);
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}
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}
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break;
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break;
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default:
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default:
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@ -943,7 +967,7 @@ int q921_transmit_iframe(struct q921_link *link, void *buf, int len, int cr)
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switch (link->state) {
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switch (link->state) {
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case Q921_TEI_ASSIGNED:
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case Q921_TEI_ASSIGNED:
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/* If we aren't in a state compatiable with DL-DATA requests, start getting us there here */
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/* If we aren't in a state compatiable with DL-DATA requests, start getting us there here */
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restart_timer_stop(ctrl);
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restart_timer_stop(link);
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q921_establish_data_link(link);
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q921_establish_data_link(link);
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link->l3_initiated = 1;
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link->l3_initiated = 1;
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q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
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q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
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@ -1666,7 +1690,7 @@ static pri_event *q921_sabme_rx(struct q921_link *link, q921_h *h)
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}
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}
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break;
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break;
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case Q921_TEI_ASSIGNED:
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case Q921_TEI_ASSIGNED:
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restart_timer_stop(ctrl);
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restart_timer_stop(link);
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q921_send_ua(link, h->u.p_f);
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q921_send_ua(link, h->u.p_f);
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q921_clear_exception_conditions(link);
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q921_clear_exception_conditions(link);
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link->v_s = link->v_a = link->v_r = 0;
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link->v_s = link->v_a = link->v_r = 0;
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@ -1719,6 +1743,7 @@ static pri_event *q921_disc_rx(struct q921_link *link, q921_h *h)
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break;
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break;
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case Q921_MULTI_FRAME_ESTABLISHED:
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case Q921_MULTI_FRAME_ESTABLISHED:
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case Q921_TIMER_RECOVERY:
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case Q921_TIMER_RECOVERY:
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res = q921_ptp_delay_restart(link);
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q921_discard_iqueue(link);
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q921_discard_iqueue(link);
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q921_send_ua(link, h->u.p_f);
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q921_send_ua(link, h->u.p_f);
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/* DL-RELEASE indication */
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/* DL-RELEASE indication */
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@ -1727,7 +1752,6 @@ static pri_event *q921_disc_rx(struct q921_link *link, q921_h *h)
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if (link->state == Q921_MULTI_FRAME_ESTABLISHED)
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if (link->state == Q921_MULTI_FRAME_ESTABLISHED)
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stop_t203(link);
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stop_t203(link);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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res = q921_ptp_delay_restart(ctrl);
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break;
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break;
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default:
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default:
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pri_error(ctrl, "Don't know what to do with DISC in state %d(%s)\n",
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pri_error(ctrl, "Don't know what to do with DISC in state %d(%s)\n",
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@ -1760,7 +1784,7 @@ static void q921_mdl_remove(struct q921_link *link)
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switch (link->state) {
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switch (link->state) {
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case Q921_TEI_ASSIGNED:
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case Q921_TEI_ASSIGNED:
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restart_timer_stop(ctrl);
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restart_timer_stop(link);
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/* XXX: deviation! Since we don't have a UI queue, we just discard our I-queue */
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/* XXX: deviation! Since we don't have a UI queue, we just discard our I-queue */
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q921_discard_iqueue(link);
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q921_discard_iqueue(link);
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q921_setstate(link, Q921_TEI_UNASSIGNED);
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q921_setstate(link, Q921_TEI_UNASSIGNED);
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@ -1906,6 +1930,16 @@ static void q921_mdl_handle_ptp_error(struct q921_link *link, char error)
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ctrl = link->ctrl;
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ctrl = link->ctrl;
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switch (error) {
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switch (error) {
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case 'J':
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/*
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* This is for the transition to Q921_AWAITING_ESTABLISHMENT.
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* The event is genereated here rather than where the MDL_ERROR
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* 'J' is posted because of the potential event conflict with
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* incoming I-frame information passed to Q.931.
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*/
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ctrl->schedev = 1;
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ctrl->ev.gen.e = PRI_EVENT_DCHAN_DOWN;
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break;
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case 'A':
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case 'A':
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case 'B':
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case 'B':
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case 'C':
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case 'C':
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@ -1915,7 +1949,6 @@ static void q921_mdl_handle_ptp_error(struct q921_link *link, char error)
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case 'G':
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case 'G':
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case 'H':
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case 'H':
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case 'I':
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case 'I':
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case 'J':
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case 'K':
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case 'K':
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break;
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break;
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default:
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default:
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@ -2122,11 +2155,11 @@ static pri_event *q921_ua_rx(struct q921_link *link, q921_h *h)
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if (!h->u.p_f) {
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if (!h->u.p_f) {
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q921_mdl_error(link, 'D');
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q921_mdl_error(link, 'D');
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} else {
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} else {
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res = q921_ptp_delay_restart(link);
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/* DL-RELEASE confirm */
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/* DL-RELEASE confirm */
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_CONFIRM);
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_CONFIRM);
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stop_t200(link);
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stop_t200(link);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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res = q921_ptp_delay_restart(ctrl);
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}
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}
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break;
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break;
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default:
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default:
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@ -2423,6 +2456,10 @@ static pri_event *q921_frmr_rx(struct q921_link *link, q921_h *h)
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q921_establish_data_link(link);
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q921_establish_data_link(link);
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link->l3_initiated = 0;
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link->l3_initiated = 0;
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q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
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q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
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if (PTP_MODE(ctrl)) {
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ctrl->ev.gen.e = PRI_EVENT_DCHAN_DOWN;
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res = &ctrl->ev;
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}
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break;
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break;
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case Q921_TEI_ASSIGNED:
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case Q921_TEI_ASSIGNED:
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case Q921_AWAITING_ESTABLISHMENT:
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case Q921_AWAITING_ESTABLISHMENT:
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@ -2558,7 +2595,7 @@ static pri_event *q921_dm_rx(struct q921_link *link, q921_h *h)
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if (h->u.p_f)
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if (h->u.p_f)
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break;
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break;
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/* else */
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/* else */
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restart_timer_stop(ctrl);
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restart_timer_stop(link);
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q921_establish_data_link(link);
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q921_establish_data_link(link);
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link->l3_initiated = 1;
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link->l3_initiated = 1;
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q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
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q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
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@ -2567,21 +2604,21 @@ static pri_event *q921_dm_rx(struct q921_link *link, q921_h *h)
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if (!h->u.p_f)
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if (!h->u.p_f)
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break;
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break;
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res = q921_ptp_delay_restart(link);
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q921_discard_iqueue(link);
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q921_discard_iqueue(link);
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/* DL-RELEASE indication */
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/* DL-RELEASE indication */
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_IND);
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_IND);
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stop_t200(link);
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stop_t200(link);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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q921_setstate(link, Q921_TEI_ASSIGNED);
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res = q921_ptp_delay_restart(ctrl);
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break;
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break;
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case Q921_AWAITING_RELEASE:
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case Q921_AWAITING_RELEASE:
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if (!h->u.p_f)
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if (!h->u.p_f)
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break;
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break;
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res = q921_ptp_delay_restart(link);
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/* DL-RELEASE confirm */
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/* DL-RELEASE confirm */
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_CONFIRM);
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q931_dl_event(link, Q931_DL_EVENT_DL_RELEASE_CONFIRM);
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stop_t200(link);
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stop_t200(link);
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q921_setstate(link, Q921_TEI_ASSIGNED);
|
q921_setstate(link, Q921_TEI_ASSIGNED);
|
||||||
res = q921_ptp_delay_restart(ctrl);
|
|
||||||
break;
|
break;
|
||||||
case Q921_MULTI_FRAME_ESTABLISHED:
|
case Q921_MULTI_FRAME_ESTABLISHED:
|
||||||
if (h->u.p_f) {
|
if (h->u.p_f) {
|
||||||
@ -2593,6 +2630,10 @@ static pri_event *q921_dm_rx(struct q921_link *link, q921_h *h)
|
|||||||
q921_establish_data_link(link);
|
q921_establish_data_link(link);
|
||||||
link->l3_initiated = 0;
|
link->l3_initiated = 0;
|
||||||
q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
|
q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
|
||||||
|
if (PTP_MODE(ctrl)) {
|
||||||
|
ctrl->ev.gen.e = PRI_EVENT_DCHAN_DOWN;
|
||||||
|
res = &ctrl->ev;
|
||||||
|
}
|
||||||
break;
|
break;
|
||||||
case Q921_TIMER_RECOVERY:
|
case Q921_TIMER_RECOVERY:
|
||||||
if (h->u.p_f) {
|
if (h->u.p_f) {
|
||||||
@ -2603,6 +2644,10 @@ static pri_event *q921_dm_rx(struct q921_link *link, q921_h *h)
|
|||||||
q921_establish_data_link(link);
|
q921_establish_data_link(link);
|
||||||
link->l3_initiated = 0;
|
link->l3_initiated = 0;
|
||||||
q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
|
q921_setstate(link, Q921_AWAITING_ESTABLISHMENT);
|
||||||
|
if (PTP_MODE(ctrl)) {
|
||||||
|
ctrl->ev.gen.e = PRI_EVENT_DCHAN_DOWN;
|
||||||
|
res = &ctrl->ev;
|
||||||
|
}
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
pri_error(ctrl, "Don't know what to do with DM frame in state %d(%s)\n",
|
pri_error(ctrl, "Don't know what to do with DM frame in state %d(%s)\n",
|
||||||
|
Loading…
Reference in New Issue
Block a user