integ/base/linuxptp/debian/patches/0054-Disable-active-interface-failing.patch
Andre Mauricio Zelak 06c396fbe3 Fix HA clock selection algorithm
The issue reported is a particular case of a BC configured with
redundant PTP clocks with same priority. When a clock recovers
from a failure, as both clock were configured with same priority
it's expected the active clock source to remain active. But if
the recovered clock presented a better local clock class than
active, it was being selected active. This specific case was fixed.

Closes-bug: 2084723

Test plan: BC with same priority
PASS: Start the PTP service with all clocks out of requirements,
one is selected, no matter which one.
PASS: Then, when the backup clock recovers from failure it is
selected active.
PASS: Then, when the other clock recovers from failure it remains
as backup, no matter the local clock class.
PASS: Then, when the active goes out of requirement, the backup
is set active.

Test plan: GM with same priority
PASS: Start the PTP service with all clocks out of requirements,
one is selected, no matter which one.
PASS: Then, when the backup clock recovers from failure it is selected
active.
PASS: Then, when the other clock recovers from failure it remains
as backup, no matter the local clock class.
PASS: Then, when the active goes out of requirement, the backup
is set active.

Change-Id: Id2568bc8bbaad4cbf15070314f7904d3c3bbd53d
Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
2024-10-16 18:19:55 -03:00

56 lines
1.7 KiB
Diff

From: Andre Mauricio Zelak <andre.zelak@windriver.com>
Date: Thu, 31 Aug 2023 16:05:15 -0300
Subject: [PATCH 54/61] Disable active interface failing
Fixed the behavior when none clock is matching the requirements and the
active clock source is disabled using the 'disable source <interface>'
command. The interface is must be disabled and a new clock source is
selected.
Test plan: none clock is matching the requirements
PASS: Verify that the active source can be disabled and a new one is
selected.
PASS: Verify that an attempt to disable the last active interface
fails and an appopriated message is given as response.
PASS: Verify that the interface with higher priority is selected after
re-enabling it.
PASS: Verify the active clock source doesn't change if another
interface is disabled.
PASS: Verify the active clock source doesn't change if another
interface is re-enabled.
Story: 2010723
Task: 48702
Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
---
phc2sys.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/phc2sys.c b/phc2sys.c
index 9893675..4120568 100644
--- a/phc2sys.c
+++ b/phc2sys.c
@@ -1115,6 +1115,10 @@ static struct clock* ha_select_clock(struct phc2sys_private *priv, struct config
if (clock->node == NULL)
continue;
+ /* clock disabled */
+ if (!clock->enabled)
+ continue;
+
/* get clock class */
clock_class = clock->node->dds.clockQuality.clockClass;
if (clock_class <= lowest_clock_class) {
@@ -1137,6 +1141,10 @@ static struct clock* ha_select_clock(struct phc2sys_private *priv, struct config
if (clock->node == NULL)
continue;
+ /* clock disabled */
+ if (!clock->enabled)
+ continue;
+
best = clock;
}
}