Files
integ/base/linuxptp/debian/bullseye/patches/0017-Find-a-better-home-for-the-management-TLV-ID-helper-.patch
Andre Mauricio Zelak 1fff0107f2 phc2sys: Downgrade log message about timeout reading pmc dds,
tpd and pds

Depending upon system load, the read pmc call can timeout. When
it happens the corresponding data set is reset, allowing the HA
algorithm to switch over the current source.

Although the read timeout is undesirable, the error message is
misleading because the failure is mitigated. Downgrade the error
message to notice to disable it in the default log level.

Test Plan:
PASS: Deploy T-BC with single PTP4L instance
 - Load system (stress -c 64 -m 5 -t 60)
   check user.log, phc2sys not showing the error message
   phc2sys: notice [1200995.017] phc-inst2 pmc agent index 0, timeout reading pmc tpd

PASS: Deploy T-BC with single PTP4L instance
 - Adjust the log to debug level
 system ptp-instance-parameter-add phc-inst2 logging_level=7
 - Load system (stress -c 64 -m 5 -t 60)
   check user.log, phc2sys eventually shows the error message
   phc2sys: notice [1215208.628] phc-inst2 pmc agent index 0, timeout reading pmc tpd

PASS: Build linuxptp package

Closes-Bug: 2132273

Change-Id: I3e05de4006c0e35b725178d9e56eaf8c72d52747
Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
2025-11-25 17:07:25 -03:00

93 lines
2.6 KiB
Diff

From: Andre Mauricio Zelak <andre.zelak@windriver.com>
Date: Mon, 12 Jun 2023 14:58:09 -0300
Subject: [PATCH 17/67] Find a better home for the management TLV ID helper
function.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
[commit d95bb9f9d62f4f372934905e97e052aa68dcfc58 upstream]
Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
---
msg.h | 12 ++++++++++++
phc2sys.c | 2 +-
pmc_agent.c | 10 +---------
pmc_agent.h | 1 -
4 files changed, 14 insertions(+), 11 deletions(-)
diff --git a/msg.h b/msg.h
index e71d3ce..b600ff0 100644
--- a/msg.h
+++ b/msg.h
@@ -247,6 +247,18 @@ static inline uint8_t management_action(struct ptp_message *m)
return m->management.flags & 0x0f;
}
+/**
+ * Obtain the ID field from the TLV in a management message.
+ * @param m A management message.
+ * @return The value of the ID field.
+ */
+static inline int management_tlv_id(struct ptp_message *m)
+{
+ struct management_tlv *mgt;
+ mgt = (struct management_tlv *) m->management.suffix;
+ return mgt->id;
+}
+
/**
* Test a given bit in a message's flag field.
* @param m Message to test.
diff --git a/phc2sys.c b/phc2sys.c
index 037b1b9..1f74f27 100644
--- a/phc2sys.c
+++ b/phc2sys.c
@@ -819,7 +819,7 @@ static int phc2sys_recv_subscribed(void *context, struct ptp_message *msg,
struct port *port;
struct clock *clock;
- mgt_id = get_mgt_id(msg);
+ mgt_id = management_tlv_id(msg);
if (mgt_id == excluded)
return 0;
switch (mgt_id) {
diff --git a/pmc_agent.c b/pmc_agent.c
index 8ccafe2..6dfb3ca 100644
--- a/pmc_agent.c
+++ b/pmc_agent.c
@@ -85,14 +85,6 @@ static int is_msg_mgt(struct ptp_message *msg)
return 0;
}
-int get_mgt_id(struct ptp_message *msg)
-{
- struct management_tlv *mgt;
-
- mgt = (struct management_tlv *) msg->management.suffix;
- return mgt->id;
-}
-
void *get_mgt_data(struct ptp_message *msg)
{
struct management_tlv *mgt;
@@ -174,7 +166,7 @@ static int run_pmc(struct pmc_agent *node, int timeout, int ds_id,
}
if (res <= 0 ||
node->recv_subscribed(node->recv_context, *msg, ds_id) ||
- get_mgt_id(*msg) != ds_id) {
+ management_tlv_id(*msg) != ds_id) {
msg_put(*msg);
*msg = NULL;
continue;
diff --git a/pmc_agent.h b/pmc_agent.h
index c0b4525..09249ff 100644
--- a/pmc_agent.h
+++ b/pmc_agent.h
@@ -43,7 +43,6 @@ int run_pmc_port_properties(struct pmc_agent *agent, int timeout,
unsigned int port, int *state,
int *tstamping, char *iface);
int run_pmc_get_utc_offset(struct pmc_agent *agent, int timeout);
-int get_mgt_id(struct ptp_message *msg);
void *get_mgt_data(struct ptp_message *msg);