From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v25 07/16] trace-cmd: Add host / guest role in timestamp synchronization context
Date: Thu, 29 Oct 2020 13:18:07 +0200 [thread overview]
Message-ID: <20201029111816.247241-8-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20201029111816.247241-1-tz.stoyanov@gmail.com>
Added new parameter in timestamp synchronization context, holding the
current role in the timestamp synchronization process - host or guest.
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
lib/trace-cmd/include/trace-tsync-local.h | 1 +
lib/trace-cmd/trace-timesync.c | 9 ++++++---
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/lib/trace-cmd/include/trace-tsync-local.h b/lib/trace-cmd/include/trace-tsync-local.h
index 33add609..793737e8 100644
--- a/lib/trace-cmd/include/trace-tsync-local.h
+++ b/lib/trace-cmd/include/trace-tsync-local.h
@@ -11,6 +11,7 @@
struct clock_sync_context {
void *proto_data; /* time sync protocol specific data */
bool is_server; /* server side time sync role */
+ bool is_guest; /* guest or host time sync role */
struct tracefs_instance *instance; /* ftrace buffer, used for time sync events */
/* Arrays with calculated time offsets at given time */
diff --git a/lib/trace-cmd/trace-timesync.c b/lib/trace-cmd/trace-timesync.c
index d461392b..12e00686 100644
--- a/lib/trace-cmd/trace-timesync.c
+++ b/lib/trace-cmd/trace-timesync.c
@@ -283,7 +283,7 @@ clock_synch_delete_instance(struct tracefs_instance *inst)
tracefs_instance_free(inst);
}
-static int clock_context_init(struct tracecmd_time_sync *tsync, bool server)
+static int clock_context_init(struct tracecmd_time_sync *tsync, bool guest)
{
struct clock_sync_context *clock = NULL;
struct tsync_proto *protocol;
@@ -298,8 +298,11 @@ static int clock_context_init(struct tracecmd_time_sync *tsync, bool server)
clock = calloc(1, sizeof(struct clock_sync_context));
if (!clock)
return -1;
-
- clock->is_server = server;
+ clock->is_guest = guest;
+ if (clock->is_guest)
+ clock->is_server = true;
+ else
+ clock->is_server = false;
if (get_vsocket_params(tsync->msg_handle->fd, &clock->local_cid,
&clock->local_port, &clock->remote_cid,
&clock->remote_port))
--
2.26.2
next prev parent reply other threads:[~2020-10-29 11:18 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-29 11:18 [PATCH v25 00/16] Timestamp synchronization of host - guest tracing session Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 01/16] trace-cmd: Replace time sync protocol ID with string Tzvetomir Stoyanov (VMware)
2020-11-05 14:52 ` Steven Rostedt
2020-12-02 22:43 ` Steven Rostedt
2020-10-29 11:18 ` [PATCH v25 02/16] trace-cmd: Add trace-cmd library APIs for ftrace clock name Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 03/16] trace-cmd: Move VM related logic in a separate file Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 04/16] trace-cmd: Add new libtrasefs API to get the current trace clock Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 05/16] trace-cmd: Add clock parameter to timestamp synchronization plugins Tzvetomir Stoyanov (VMware)
2020-12-02 22:48 ` Steven Rostedt
2020-12-03 13:09 ` Tzvetomir Stoyanov
2020-10-29 11:18 ` [PATCH v25 06/16] trace-cmd: Add role " Tzvetomir Stoyanov (VMware)
2020-12-02 23:04 ` Steven Rostedt
2020-10-29 11:18 ` Tzvetomir Stoyanov (VMware) [this message]
2020-12-02 23:07 ` [PATCH v25 07/16] trace-cmd: Add host / guest role in timestamp synchronization context Steven Rostedt
2020-10-29 11:18 ` [PATCH v25 08/16] trace-cmd: Add guest CPU count PID in tracecmd_time_sync struct Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 09/16] trace-cmd: Add scaling ratio for timestamp correction Tzvetomir Stoyanov (VMware)
2020-12-03 1:47 ` Steven Rostedt
2020-12-03 12:56 ` Tzvetomir Stoyanov
2020-10-29 11:18 ` [PATCH v25 10/16] trace-cmd: Add time sync protocol flags Tzvetomir Stoyanov (VMware)
2020-12-03 2:09 ` Steven Rostedt
2020-12-03 12:59 ` Tzvetomir Stoyanov
2020-10-29 11:18 ` [PATCH v25 11/16] trace-cmd: Add timestamp synchronization per vCPU Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 12/16] trace-cmd: Define a macro for packed structures Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 13/16] trace-cmd: Add dummy function to initialize timestamp sync logic Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 14/16] trace-cmd: [POC] PTP-like algorithm for host - guest timestamp synchronization Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 15/16] trace-cmd: Debug scripts for " Tzvetomir Stoyanov (VMware)
2020-10-29 11:18 ` [PATCH v25 16/16] trace-cmd [POC]: Add KVM timestamp synchronization plugin Tzvetomir Stoyanov (VMware)
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