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[Qemu-devel] [PATCH v1 04/12] hub: Check that hubs are configured correc
From: |
zwu . kernel |
Subject: |
[Qemu-devel] [PATCH v1 04/12] hub: Check that hubs are configured correctly |
Date: |
Fri, 9 Mar 2012 17:00:17 +0800 |
From: Stefan Hajnoczi <address@hidden>
Checks can be performed to make sure that hubs have at least one NIC and
one host device, warning the user if this is not the case.
Configurations which do not meet this rule tend to be broken but just
emit a warning. This patch preserves compatibility with the checks
performed by net core on vlans.
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Zhi Yong Wu <address@hidden>
---
net.c | 25 +------------------------
net/hub.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
net/hub.h | 1 +
3 files changed, 47 insertions(+), 24 deletions(-)
diff --git a/net.c b/net.c
index 181080e..67b09e4 100644
--- a/net.c
+++ b/net.c
@@ -1337,7 +1337,6 @@ void net_cleanup(void)
void net_check_clients(void)
{
- VLANState *vlan;
VLANClientState *vc;
int i;
@@ -1353,30 +1352,8 @@ void net_check_clients(void)
return;
}
- QTAILQ_FOREACH(vlan, &vlans, next) {
- int has_nic = 0, has_host_dev = 0;
+ net_hub_check_clients();
- QTAILQ_FOREACH(vc, &vlan->clients, next) {
- switch (vc->info->type) {
- case NET_CLIENT_TYPE_NIC:
- has_nic = 1;
- break;
- case NET_CLIENT_TYPE_USER:
- case NET_CLIENT_TYPE_TAP:
- case NET_CLIENT_TYPE_SOCKET:
- case NET_CLIENT_TYPE_VDE:
- has_host_dev = 1;
- break;
- default: ;
- }
- }
- if (has_host_dev && !has_nic)
- fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
- if (has_nic && !has_host_dev)
- fprintf(stderr,
- "Warning: vlan %d is not connected to host network\n",
- vlan->id);
- }
QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
if (!vc->peer) {
fprintf(stderr, "Warning: %s %s has no peer\n",
diff --git a/net/hub.c b/net/hub.c
index 1dc23f5..88270b0 100644
--- a/net/hub.c
+++ b/net/hub.c
@@ -226,3 +226,48 @@ int net_hub_id_for_client(VLANClientState *nc, unsigned
int *id)
}
return -ENOENT;
}
+
+/**
+ * Warn if hub configurations are likely wrong
+ */
+void net_hub_check_clients(void)
+{
+ NetHub *hub;
+ NetHubPort *port;
+ VLANClientState *peer;
+
+ QLIST_FOREACH(hub, &hubs, next) {
+ int has_nic = 0, has_host_dev = 0;
+
+ QLIST_FOREACH(port, &hub->ports, next) {
+ peer = port->nc.peer;
+ if (!peer) {
+ fprintf(stderr, "Warning: hub port %s has no peer\n",
+ port->nc.name);
+ continue;
+ }
+
+ switch (peer->info->type) {
+ case NET_CLIENT_TYPE_NIC:
+ has_nic = 1;
+ break;
+ case NET_CLIENT_TYPE_USER:
+ case NET_CLIENT_TYPE_TAP:
+ case NET_CLIENT_TYPE_SOCKET:
+ case NET_CLIENT_TYPE_VDE:
+ has_host_dev = 1;
+ break;
+ default:
+ break;
+ }
+ }
+ if (has_host_dev && !has_nic) {
+ fprintf(stderr, "Warning: vlan %u with no nics\n", hub->id);
+ }
+ if (has_nic && !has_host_dev) {
+ fprintf(stderr,
+ "Warning: vlan %u is not connected to host network\n",
+ hub->id);
+ }
+ }
+}
diff --git a/net/hub.h b/net/hub.h
index 60d4cae..caa3b16 100644
--- a/net/hub.h
+++ b/net/hub.h
@@ -21,5 +21,6 @@ VLANClientState *net_hub_find_client_by_name(unsigned int
hub_id,
const char *name);
void net_hub_info(Monitor *mon);
int net_hub_id_for_client(VLANClientState *nc, unsigned int *id);
+void net_hub_check_clients(void);
#endif /* NET_HUB_H */
--
1.7.6
- [Qemu-devel] [PATCH v1 08/12] net: Remove VLANState, (continued)
- [Qemu-devel] [PATCH v1 08/12] net: Remove VLANState, zwu . kernel, 2012/03/09
- [Qemu-devel] [PATCH v1 02/12] net: Use hubs for the vlan feature, zwu . kernel, 2012/03/09
- [Qemu-devel] [PATCH v1 06/12] net: Remove vlan qdev property, zwu . kernel, 2012/03/09
- [Qemu-devel] [PATCH v1 09/12] net: Rename non_vlan_clients to net_clients, zwu . kernel, 2012/03/09
- [Qemu-devel] [PATCH v1 07/12] net: Remove vlan code from net.c, zwu . kernel, 2012/03/09
- [Qemu-devel] [PATCH v1 11/12] net: Rename vc local variables to nc, zwu . kernel, 2012/03/09
- [Qemu-devel] [PATCH v1 10/12] net: Rename VLANClientState to NetClientState, zwu . kernel, 2012/03/09
- [Qemu-devel] [PATCH v1 12/12] net: Rename qemu_del_vlan_client() to qemu_del_net_client(), zwu . kernel, 2012/03/09
- [Qemu-devel] [PATCH v1 04/12] hub: Check that hubs are configured correctly,
zwu . kernel <=