600ad549b5
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>
54 lines
1.5 KiB
Diff
54 lines
1.5 KiB
Diff
From 11ae077e31d9957df01aacfa17eea5b5d548b249 Mon Sep 17 00:00:00 2001
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From: Miroslav Lichvar <mlichvar@redhat.com>
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Date: Wed, 18 May 2022 11:33:37 +0200
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Subject: [PATCH 9/54] sysoff: Retry on EBUSY when probing supported ioctls.
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Handle EBUSY when probing support for a PTP_SYS_OFFSET ioctl. Try each
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ioctl up to three times before giving up on it to make the detection
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more reliable.
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Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
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[commit dadd2593c7beaee9eba5828a7bd8a0b5849dd8bb upstream]
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Signed-off-by: Douglas Henrique Koerich <douglashenrique.koerich@windriver.com>
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Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
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---
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sysoff.c | 14 ++++++++++----
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1 file changed, 10 insertions(+), 4 deletions(-)
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diff --git a/sysoff.c b/sysoff.c
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index a425275..fc1f7ca 100644
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--- a/sysoff.c
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+++ b/sysoff.c
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@@ -145,8 +145,8 @@ int sysoff_measure(int fd, int method, int n_samples,
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int sysoff_probe(int fd, int n_samples)
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{
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int64_t junk, delay;
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+ int i, j, err;
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uint64_t ts;
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- int i;
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if (n_samples > PTP_MAX_SAMPLES) {
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fprintf(stderr, "warning: %d exceeds kernel max readings %d\n",
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@@ -156,9 +156,15 @@ int sysoff_probe(int fd, int n_samples)
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}
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for (i = 0; i < SYSOFF_LAST; i++) {
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- if (sysoff_measure(fd, i, n_samples, &junk, &ts, &delay) < 0)
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- continue;
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- return i;
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+ for (j = 0; j < 3; j++) {
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+ err = sysoff_measure(fd, i, n_samples, &junk, &ts,
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+ &delay);
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+ if (err == -EBUSY)
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+ continue;
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+ if (err)
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+ break;
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+ return i;
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+ }
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}
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return SYSOFF_RUN_TIME_MISSING;
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--
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2.29.2
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