this qmp command returns the current link state from the given nic
this is impotent if the set_link failed or get an timeout.
Signed-off-by: Wolfgang Link <wolfg...@linksystems.org>
---
net/net.c | 26 ++++++++++++++++++++++++++
qapi-schema.json | 15 +++++++++++++++
qmp-commands.hx | 22 ++++++++++++++++++++++
3 files changed, 63 insertions(+)
diff --git a/net/net.c b/net/net.c
index 7acc162..57c6f1e 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1141,6 +1141,32 @@ void do_info_network(Monitor *mon, const QDict *qdict)
}
}
+int64_t qmp_get_link_status(const char *name, Error **errp)
+{
+ NetClientState *ncs[MAX_QUEUE_NUM];
+ NetClientState *nc;
+ int queues;
+ bool ret;
+
+ queues = qemu_find_net_clients_except(name, ncs,
+ NET_CLIENT_OPTIONS_KIND_MAX,
+ MAX_QUEUE_NUM);
+
+ if (queues == 0) {
+ error_set(errp, QERR_DEVICE_NOT_FOUND, name);
+ return (int64_t) -1;
+ }
+
+ nc = ncs[0];
+ ret = ncs[0]->link_down;
+
+ if (nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
+ ret = ncs[0]->peer->link_down;
+ }
+
+ return (int64_t) ret ? 0 : 1;
+}
+
void qmp_set_link(const char *name, bool up, Error **errp)
{
NetClientState *ncs[MAX_QUEUE_NUM];
diff --git a/qapi-schema.json b/qapi-schema.json
index 9ffdcf8..c5321e6 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1200,6 +1200,21 @@
{ 'command': 'inject-nmi' }
##
+# @get_link_status
+#
+# Get the current link state of the nics or nic.
+#
+# @name: name of the nic you get the state of
+#
+# Return: If link is up 1
+# If link is down 0
+# If an error occure an empty string.
+#
+# Notes: this is an Proxmox VE extension and not offical part of Qemu.
+##
+{ 'command': 'get_link_status', 'data': {'name': 'str'}, 'returns': 'int'}
+
+##
# @set_link:
#
# Sets the link status of a virtual network adapter.
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 718dd92..ecc501a 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -1431,6 +1431,28 @@ Example:
EQMP
{
+ .name = "get_link_status",
+ .args_type = "name:s",
+ .mhandler.cmd_new = qmp_marshal_input_get_link_status,
+ },
+
+SQMP
+get_link_status
+--------
+
+Get the link status of a network adapter.
+
+Arguments:
+
+- "name": network device name (json-string)
+
+Example:
+
+-> { "execute": "set_link", "arguments": { "name": "e1000.0" } }
+<- { "return": {1} }
+EQMP
+
+ {
.name = "set_link",
.args_type = "name:s,up:b",
.mhandler.cmd_new = qmp_marshal_input_set_link,
--
1.7.10.4
