From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:43500) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h14G8-00033S-OE for qemu-devel@nongnu.org; Tue, 05 Mar 2019 02:13:07 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h14G7-0000mO-U5 for qemu-devel@nongnu.org; Tue, 05 Mar 2019 02:13:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:36530) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1h14G7-0000lq-Mu for qemu-devel@nongnu.org; Tue, 05 Mar 2019 02:13:03 -0500 From: Jason Wang Date: Tue, 5 Mar 2019 15:12:18 +0800 Message-Id: <1551769940-22739-12-git-send-email-jasowang@redhat.com> In-Reply-To: <1551769940-22739-1-git-send-email-jasowang@redhat.com> References: <1551769940-22739-1-git-send-email-jasowang@redhat.com> Subject: [Qemu-devel] [PULL V2 11/13] qmp: Add announce-self command List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, peter.maydell@linaro.org Cc: "Dr. David Alan Gilbert" , Jason Wang From: "Dr. David Alan Gilbert" Add a qmp command that can trigger guest announcements. It uses its own announce-timer instance, and parameters passed to it explicitly in the command. Like most qmp commands, it's in the main thread/bql, so there's no racing with any outstanding timer. Based on work of Germano Veit Michel and Vladislav Yasevich Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- net/announce.c | 7 +++++++ qapi/net.json | 20 ++++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/net/announce.c b/net/announce.c index 070f37a..91e9a6e 100644 --- a/net/announce.c +++ b/net/announce.c @@ -12,6 +12,7 @@ #include "net/net.h" #include "qapi/clone-visitor.h" #include "qapi/qapi-visit-net.h" +#include "qapi/qapi-commands-net.h" #include "trace.h" int64_t qemu_announce_timer_step(AnnounceTimer *timer) @@ -131,3 +132,9 @@ void qemu_announce_self(AnnounceTimer *timer, AnnounceParameters *params) qemu_announce_timer_del(timer); } } + +void qmp_announce_self(AnnounceParameters *params, Error **errp) +{ + static AnnounceTimer announce_timer; + qemu_announce_self(&announce_timer, params); +} diff --git a/qapi/net.json b/qapi/net.json index 5face0c..5f7bff1 100644 --- a/qapi/net.json +++ b/qapi/net.json @@ -707,3 +707,23 @@ 'max': 'int', 'rounds': 'int', 'step': 'int' } } + +## +# @announce-self: +# +# Trigger generation of broadcast RARP frames to update network switches. +# This can be useful when network bonds fail-over the active slave. +# +# @params: AnnounceParameters giving timing and repetition count of announce +# +# Example: +# +# -> { "execute": "announce-self" +# "arguments": { +# "initial": 50, "max": 550, "rounds": 10, "step": 50 } } +# <- { "return": {} } +# +# Since: 4.0 +## +{ 'command': 'announce-self', 'boxed': true, + 'data' : 'AnnounceParameters'} -- 2.5.0