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From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v24 07/10] trace-cmd: Add host / guest role in timestamp synchronization context
Date: Fri,  9 Oct 2020 17:03:35 +0300	[thread overview]
Message-ID: <20201009140338.25260-8-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20201009140338.25260-1-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 b79b102c..1af52a12 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 807fb6f5..10ab82f0 100644
--- a/lib/trace-cmd/trace-timesync.c
+++ b/lib/trace-cmd/trace-timesync.c
@@ -293,7 +293,7 @@ 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;
@@ -308,8 +308,11 @@ 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


  parent reply	other threads:[~2020-10-09 14:03 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-09 14:03 [PATCH v24 00/10] Timestamp synchronization of host - guest tracing session Tzvetomir Stoyanov (VMware)
2020-10-09 14:03 ` [PATCH v24 01/10] trace-cmd: [POC] PTP-like algorithm for host - guest timestamp synchronization Tzvetomir Stoyanov (VMware)
2020-10-15 21:24   ` Steven Rostedt
2020-10-26  7:38     ` Tzvetomir Stoyanov
2020-10-09 14:03 ` [PATCH v24 02/10] trace-cmd: Debug scripts for " Tzvetomir Stoyanov (VMware)
2020-10-09 14:03 ` [PATCH v24 03/10] trace-cmd: Add trace-cmd library APIs for ftrace clock name Tzvetomir Stoyanov (VMware)
2020-10-22  1:26   ` Steven Rostedt
2020-10-22  1:31     ` Steven Rostedt
2020-10-09 14:03 ` [PATCH v24 04/10] trace-cmd: Move VM related logic in a separate file Tzvetomir Stoyanov (VMware)
2020-10-09 14:03 ` [PATCH v24 05/10] trace-cmd: Add clock parameter to timestamp synchronization plugins Tzvetomir Stoyanov (VMware)
2020-10-22  1:39   ` Steven Rostedt
2020-10-09 14:03 ` [PATCH v24 06/10] trace-cmd: Add role " Tzvetomir Stoyanov (VMware)
2020-10-09 14:03 ` Tzvetomir Stoyanov (VMware) [this message]
2020-10-09 14:03 ` [PATCH v24 08/10] trace-cmd: Add guest CPU count PID in tracecmd_time_sync struct Tzvetomir Stoyanov (VMware)
2020-10-09 14:03 ` [PATCH v24 09/10] trace-cmd: Fixed bitmask logic tracecmd_tsync_proto_getall() Tzvetomir Stoyanov (VMware)
2020-10-09 14:03 ` [PATCH v24 10/10] trace-cmd [POC]: Add KVM timestamp synchronization plugin Tzvetomir Stoyanov (VMware)

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