starlingx/integ
Code Issues Proposed changes
integ/base/linuxptp/debian/patches/0034-clock-Rename-UDS-variables-to-read-write.patch
Andre Mauricio Zelak deeacbcdf3 Redundant HA PTP timing clock sources support 
Enhanced phc2sys to support multiple PTP timing clock sources, to
select the best clock source available according to the clocks
statuses.

A series of changes were patched back from a newer version of the
linuxptp package. They contain the support for multiple pmc nodes,
necessary to communicate with multiple ptp4l instances.

The phc2sys is now able to automatically select the best clock
according to the clocks statuses, and also monitors any clock
status change and act to keep the system synchronized to the
best clock source available.

A new set of configuration options were added to control the behavior
of the automatic clock selection algorithm and to configure the clock
source interfaces.

And a new command interface was added to phc2sys to gather statuses
about the clocks configured and the HA algorithm. This interface also
provides commands to control the clock source selection for debug and
maintenance proposes.

Test plan:
PASS: Verify the linuxptp package is built containing all the patches.
PASS: Verify the .deb package produced in the build install and that
all the PTP different deployments new and existing are OK.
PASS: Verify that a new image containing the linuxptp packed can be
installed and that all the PTP different deployments new and existing
are OK.

Story: 2010723
Task: 48642
Change-Id: Ic8c4d9bd335c582a91f1f4418947a81fc5e8b4f9
Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
2023-08-18 10:05:14 -03:00

215 lines
7.0 KiB
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From babbe47ab091071e16fcd527bf1aad06e5aec377 Mon Sep 17 00:00:00 2001
From: Andre Mauricio Zelak <andre.zelak@windriver.com>
Date: Mon, 12 Jun 2023 18:16:31 -0300
Subject: [PATCH 34/47] clock: Rename UDS variables to read-write.
In preparation for a new read-only UDS port, rename variables of the
current UDS port to make it clear it is read-write, as opposed to
read-only.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
[commit 1b781a5a086571859b0cfba687706d8fdc764d7f upstream]
Signed-off-by: Andre Mauricio Zelak <andre.zelak@windriver.com>
---
clock.c | 52 +++++++++++++++++++++++++++++-----------------------
1 file changed, 29 insertions(+), 23 deletions(-)
diff --git a/clock.c b/clock.c
index f048771..d653c33 100644
--- a/clock.c
+++ b/clock.c
@@ -95,7 +95,7 @@ struct clock {
struct foreign_clock *best;
struct ClockIdentity best_id;
LIST_HEAD(ports_head, port) ports;
- struct port *uds_port;
+ struct port *uds_rw_port;
struct pollfd *pollfd;
int pollfd_valid;
int nports; /* does not include the UDS port */
@@ -129,7 +129,7 @@ struct clock {
struct clock_stats stats;
int stats_interval;
struct clockcheck *sanity_check;
- struct interface *udsif;
+ struct interface *uds_rw_if;
LIST_HEAD(clock_subscribers_head, clock_subscriber) subscribers;
struct monitor *slave_event_monitor;
};
@@ -243,7 +243,7 @@ static void clock_prune_subscriptions(struct clock *c)
void clock_send_notification(struct clock *c, struct ptp_message *msg,
enum notification event)
{
- struct port *uds = c->uds_port;
+ struct port *uds = c->uds_rw_port;
struct clock_subscriber *s;
LIST_FOREACH(s, &c->subscribers, list) {
@@ -265,13 +265,13 @@ void clock_destroy(struct clock *c)
{
struct port *p, *tmp;
- interface_destroy(c->udsif);
+ interface_destroy(c->uds_rw_if);
clock_flush_subscriptions(c);
LIST_FOREACH_SAFE(p, &c->ports, list, tmp) {
clock_remove_port(c, p);
}
monitor_destroy(c->slave_event_monitor);
- port_close(c->uds_port);
+ port_close(c->uds_rw_port);
free(c->pollfd);
if (c->clkid != CLOCK_REALTIME) {
phc_close(c->clkid);
@@ -440,7 +440,7 @@ static int clock_management_fill_response(struct clock *c, struct port *p,
datalen = sizeof(*gsn);
break;
case TLV_SUBSCRIBE_EVENTS_NP:
- if (p != c->uds_port) {
+ if (p != c->uds_rw_port) {
/* Only the UDS port allowed. */
break;
}
@@ -782,7 +782,7 @@ static int forwarding(struct clock *c, struct port *p)
default:
break;
}
- if (p == c->uds_port && ps != PS_FAULTY) {
+ if (p == c->uds_rw_port && ps != PS_FAULTY) {
return 1;
}
return 0;
@@ -1042,20 +1042,20 @@ struct clock *clock_create(enum clock_type type, struct config *config,
/* Configure the UDS. */
uds_ifname = config_get_string(config, NULL, "uds_address");
- c->udsif = interface_create(uds_ifname);
- if (config_set_section_int(config, interface_name(c->udsif),
+ c->uds_rw_if = interface_create(uds_ifname);
+ if (config_set_section_int(config, interface_name(c->uds_rw_if),
"announceReceiptTimeout", 0)) {
return NULL;
}
- if (config_set_section_int(config, interface_name(c->udsif),
+ if (config_set_section_int(config, interface_name(c->uds_rw_if),
"delay_mechanism", DM_AUTO)) {
return NULL;
}
- if (config_set_section_int(config, interface_name(c->udsif),
+ if (config_set_section_int(config, interface_name(c->uds_rw_if),
"network_transport", TRANS_UDS)) {
return NULL;
}
- if (config_set_section_int(config, interface_name(c->udsif),
+ if (config_set_section_int(config, interface_name(c->uds_rw_if),
"delay_filter_length", 1)) {
return NULL;
}
@@ -1178,14 +1178,15 @@ struct clock *clock_create(enum clock_type type, struct config *config,
}
/* Create the UDS interface. */
- c->uds_port = port_open(phc_device, phc_index, timestamping, 0, c->udsif, c);
- if (!c->uds_port) {
+ c->uds_rw_port = port_open(phc_device, phc_index, timestamping, 0,
+ c->uds_rw_if, c);
+ if (!c->uds_rw_port) {
pr_err("failed to open the UDS port");
return NULL;
}
clock_fda_changed(c);
- c->slave_event_monitor = monitor_create(config, c->uds_port);
+ c->slave_event_monitor = monitor_create(config, c->uds_rw_port);
if (!c->slave_event_monitor) {
pr_err("failed to create slave event monitor");
return NULL;
@@ -1204,7 +1205,7 @@ struct clock *clock_create(enum clock_type type, struct config *config,
LIST_FOREACH(p, &c->ports, list) {
port_dispatch(p, EV_INITIALIZE, 0);
}
- port_dispatch(c->uds_port, EV_INITIALIZE, 0);
+ port_dispatch(c->uds_rw_port, EV_INITIALIZE, 0);
return c;
}
@@ -1312,7 +1313,7 @@ static void clock_check_pollfd(struct clock *c)
clock_fill_pollfd(dest, p);
dest += N_CLOCK_PFD;
}
- clock_fill_pollfd(dest, c->uds_port);
+ clock_fill_pollfd(dest, c->uds_rw_port);
c->pollfd_valid = 1;
}
@@ -1329,7 +1330,7 @@ static int clock_do_forward_mgmt(struct clock *c,
return 0;
/* Don't forward any requests to the UDS port. */
- if (out == c->uds_port) {
+ if (out == c->uds_rw_port) {
switch (management_action(msg)) {
case GET:
case SET:
@@ -1360,7 +1361,7 @@ static void clock_forward_mgmt_msg(struct clock *c, struct port *p, struct ptp_m
pr_err("port %d: management forward failed",
port_number(piter));
}
- if (clock_do_forward_mgmt(c, p, c->uds_port, msg, &msg_ready))
+ if (clock_do_forward_mgmt(c, p, c->uds_rw_port, msg, &msg_ready))
pr_err("uds port: management forward failed");
if (msg_ready) {
msg_post_recv(msg, pdulen);
@@ -1412,7 +1413,7 @@ int clock_manage(struct clock *c, struct port *p, struct ptp_message *msg)
clock_management_send_error(p, msg, TLV_WRONG_LENGTH);
return changed;
}
- if (p != c->uds_port) {
+ if (p != c->uds_rw_port) {
/* Sorry, only allowed on the UDS port. */
clock_management_send_error(p, msg, TLV_NOT_SUPPORTED);
return changed;
@@ -1421,6 +1422,11 @@ int clock_manage(struct clock *c, struct port *p, struct ptp_message *msg)
return changed;
break;
case COMMAND:
+ if (p != c->uds_rw_port) {
+ /* Sorry, only allowed on the UDS port. */
+ clock_management_send_error(p, msg, TLV_NOT_SUPPORTED);
+ return changed;
+ }
break;
default:
return changed;
@@ -1428,7 +1434,7 @@ int clock_manage(struct clock *c, struct port *p, struct ptp_message *msg)
switch (mgt->id) {
case TLV_PORT_PROPERTIES_NP:
- if (p != c->uds_port) {
+ if (p != c->uds_rw_port) {
/* Only the UDS port allowed. */
clock_management_send_error(p, msg, TLV_NOT_SUPPORTED);
return 0;
@@ -1493,7 +1499,7 @@ int clock_manage(struct clock *c, struct port *p, struct ptp_message *msg)
void clock_notify_event(struct clock *c, enum notification event)
{
- struct port *uds = c->uds_port;
+ struct port *uds = c->uds_rw_port;
struct PortIdentity pid = port_identity(uds);
struct ptp_message *msg;
int id;
@@ -1599,7 +1605,7 @@ int clock_poll(struct clock *c)
/* Check the UDS port. */
for (i = 0; i < N_POLLFD; i++) {
if (cur[i].revents & (POLLIN|POLLPRI)) {
- event = port_event(c->uds_port, i);
+ event = port_event(c->uds_rw_port, i);
if (EV_STATE_DECISION_EVENT == event) {
c->sde = 1;
}
--
2.25.1
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