Files
integ/base/linuxptp/debian/patches/0024-pmc_agent-Perform-time-comparison-using-positive-log.patch
Andre Mauricio Zelak 600ad549b5 Use time traceable flag in HA clock selection
A new time traceable flag was added to pmc agent to store the current
time traceable status.

This flag replaces the utc_offset_traceable flag in the HA clock
selection algorithm and status command.

Test plan: HA clock selection algorithm
PASS: Verify the clock source which time isn't traceable is discarded
by the algorithm if ha_gm_timeTraceable is enabled.
PASS: Verify the clock source which time is traceable isn't discarded
by the algorithm if ha_gm_timeTraceable is enabled.

Regression: status command
PASS: Verify the response of status command shows the correct GM time
traceable.

The 'valid sources' command is used to get a list of interfaces which
the clock is matching the requirements. The response contains a space
separated list of interfaces, or "None" when not a single clock is
matching all the requirements.

Test plan: valid sources command
PASS: Verify that a space separated list of interface is returned when
one or more clocks match the requirements.
PASS: Verify that the string "None" is returned when not a single clock
match the requirements.

Now the GM time traceable check is enabled by default as it is an
important check for both T-GM and T-BC scenarios.

The GM time traceable check is controlled in configuration by using
the ha_gm_timeTraceable setting, and it can be disabled using the
value 0 (ha_gm_timeTraceable 0).

Test plan: default value
PASS Verify the check is performed by default.
PASS Verify the user can disable the check by configuration.

Bonus:

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

Change-Id: I64193575a995e520d36460c0ebb8dd452fa8c2b8
Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
2023-09-06 15:09:14 -03:00

44 lines
1.2 KiB
Diff

From d5421e4d4d86907648a59810ab9c27e739591971 Mon Sep 17 00:00:00 2001
From: Andre Mauricio Zelak <andre.zelak@windriver.com>
Date: Mon, 12 Jun 2023 15:35:23 -0300
Subject: [PATCH 24/54] pmc_agent: Perform time comparison using positive
logic.
In the update_pmc_node() method, reduce the expression
!(x < y) to (x >= y).
While we're at it, clean the coding style as well.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
[commit fb92fec7cef9ee3345950c2633a7781b8bd3ca08 upstream]
Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
---
pmc_agent.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/pmc_agent.c b/pmc_agent.c
index df3a562..ea6b3b7 100644
--- a/pmc_agent.c
+++ b/pmc_agent.c
@@ -351,12 +351,13 @@ int update_pmc_node(struct pmc_agent *node)
}
ts = tp.tv_sec * NS_PER_SEC + tp.tv_nsec;
- if (!(ts - node->pmc_last_update < PMC_UPDATE_INTERVAL)) {
+ if (ts - node->pmc_last_update >= PMC_UPDATE_INTERVAL) {
if (node->stay_subscribed) {
renew_subscription(node, 0);
}
- if (run_pmc_get_utc_offset(node, 0) > 0)
+ if (run_pmc_get_utc_offset(node, 0) > 0) {
node->pmc_last_update = ts;
+ }
}
return 0;
--
2.25.1