Linux-Trace-Devel Archive on lore.kernel.org
 help / color / Atom feed
From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v26 06/15] trace-cmd: Add host / guest role in timestamp synchronization context
Date: Thu, 21 Jan 2021 09:44:47 +0200
Message-ID: <20210121074456.157658-7-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20210121074456.157658-1-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            | 5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/trace-cmd/include/trace-tsync-local.h b/lib/trace-cmd/include/trace-tsync-local.h
index a99725e2..1dea054c 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 def703f6..f3cc2da6 100644
--- a/lib/trace-cmd/trace-timesync.c
+++ b/lib/trace-cmd/trace-timesync.c
@@ -296,7 +296,7 @@ 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;
@@ -311,8 +311,9 @@ 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_guest = guest;
+	clock->is_server = clock->is_guest;
 
-	clock->is_server = server;
 	if (get_vsocket_params(tsync->msg_handle->fd, &clock->local_cid,
 			       &clock->local_port, &clock->remote_cid,
 			       &clock->remote_port))
-- 
2.29.2


  parent reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-21  7:44 [PATCH v26 00/15] Timestamp synchronization of host - guest tracing session Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 01/15] trace-cmd: Replace time sync protocol ID with string Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 02/15] trace-cmd: Add trace-cmd library APIs for ftrace clock name Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 03/15] trace-cmd: Move VM related logic in a separate file Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 04/15] trace-cmd: Add clock parameter to timestamp synchronization plugins Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 05/15] trace-cmd: Add role " Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` Tzvetomir Stoyanov (VMware) [this message]
2021-01-21  7:44 ` [PATCH v26 07/15] trace-cmd: Add guest CPU count PID in tracecmd_time_sync struct Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 08/15] trace-cmd: Add scaling ratio for timestamp correction Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 09/15] trace-cmd: Add time sync protocol flags Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 10/15] trace-cmd: Add timestamp synchronization per vCPU Tzvetomir Stoyanov (VMware)
2021-01-28  2:09   ` Steven Rostedt
2021-01-21  7:44 ` [PATCH v26 11/15] trace-cmd: Define a macro for packed structures Tzvetomir Stoyanov (VMware)
2021-01-28 22:44   ` Steven Rostedt
2021-01-21  7:44 ` [PATCH v26 12/15] trace-cmd: Add dummy function to initialize timestamp sync logic Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 13/15] trace-cmd: [POC] PTP-like algorithm for host - guest timestamp synchronization Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 14/15] trace-cmd: Debug scripts for " Tzvetomir Stoyanov (VMware)
2021-01-21  7:44 ` [PATCH v26 15/15] trace-cmd [POC]: Add KVM timestamp synchronization plugin Tzvetomir Stoyanov (VMware)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210121074456.157658-7-tz.stoyanov@gmail.com \
    --to=tz.stoyanov@gmail.com \
    --cc=linux-trace-devel@vger.kernel.org \
    --cc=rostedt@goodmis.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-Trace-Devel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-trace-devel/0 linux-trace-devel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-trace-devel linux-trace-devel/ https://lore.kernel.org/linux-trace-devel \
		linux-trace-devel@vger.kernel.org
	public-inbox-index linux-trace-devel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-trace-devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git