From: Zhi Yong Wu <wu...@linux.vnet.ibm.com>
We're trying to preserve backward compatibility. This
command-line break:
x86_64-softmmu/qemu-system-x86_64 -net user,vlan=1 -device virtio-net-pci,vlan=1
Instead of dropping the qdev_prop_vlan completely the
hw/qdev-properties.c code needs to call net/hub.h external functions
to implement equivalent functionality.
Signed-off-by: Zhi Yong Wu <wu...@linux.vnet.ibm.com>
---
hw/qdev-properties.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++
hw/qdev.h | 3 ++
net.h | 1 +
net/hub.c | 25 ++++++++++++++++
net/hub.h | 1 +
5 files changed, 107 insertions(+), 0 deletions(-)
diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index 5fc7483..fcec09e 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -2,6 +2,7 @@
#include "qdev.h"
#include "qerror.h"
#include "blockdev.h"
+#include "net/hub.h"
void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
{
@@ -591,6 +592,82 @@ PropertyInfo qdev_prop_netdev = {
.set = set_netdev,
};
+/* --- vlan --- */
+
+static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len)
+{
+ NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
+
+ if (*ptr) {
+ unsigned int id;
+ if (!net_hub_id_for_client(*ptr, &id)) {
+ return snprintf(dest, len, "%u", id);
+ }
+ }
+
+ return snprintf(dest, len, "<null>");
+}
+
+static void get_vlan(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
+ int64_t id = -1;
+
+ if (*ptr) {
+ unsigned int hub_id;
+ if(!net_hub_id_for_client(*ptr, &hub_id)) {
+ id = (int64_t)hub_id;
+ }
+ }
+
+ visit_type_int(v, &id, name, errp);
+}
+
+static void set_vlan(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ Property *prop = opaque;
+ NetClientState **ptr = qdev_get_prop_ptr(dev, prop);
+ Error *local_err = NULL;
+ int64_t id;
+ NetClientState *hubport;
+
+ if (dev->state != DEV_STATE_CREATED) {
+ error_set(errp, QERR_PERMISSION_DENIED);
+ return;
+ }
+
+ visit_type_int(v, &id, name, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ if (id == -1) {
+ *ptr = NULL;
+ return;
+ }
+
+ hubport = net_hub_port_find(id);
+ if (!hubport) {
+ error_set(errp, QERR_INVALID_PARAMETER_VALUE,
+ name, prop->info->name);
+ return;
+ }
+ *ptr = hubport;
+}
+
+PropertyInfo qdev_prop_vlan = {
+ .name = "vlan",
+ .print = print_vlan,
+ .get = get_vlan,
+ .set = set_vlan,
+};
+
/* --- pointer --- */
/* Not a proper property, just for dirty hacks. TODO Remove it! */
diff --git a/hw/qdev.h b/hw/qdev.h
index 2645d0c..1b32b3a 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -234,6 +234,7 @@ extern PropertyInfo qdev_prop_macaddr;
extern PropertyInfo qdev_prop_losttickpolicy;
extern PropertyInfo qdev_prop_drive;
extern PropertyInfo qdev_prop_netdev;
+extern PropertyInfo qdev_prop_vlan;
extern PropertyInfo qdev_prop_pci_devfn;
extern PropertyInfo qdev_prop_blocksize;
@@ -288,6 +289,8 @@ extern PropertyInfo qdev_prop_blocksize;
DEFINE_PROP(_n, _s, _f, qdev_prop_string, char*)
#define DEFINE_PROP_NETDEV(_n, _s, _f) \
DEFINE_PROP(_n, _s, _f, qdev_prop_netdev, NetClientState*)
+#define DEFINE_PROP_VLAN(_n, _s, _f) \
+ DEFINE_PROP(_n, _s, _f, qdev_prop_vlan, NetClientState*)
#define DEFINE_PROP_DRIVE(_n, _s, _f) \
DEFINE_PROP(_n, _s, _f, qdev_prop_drive, BlockDriverState *)
#define DEFINE_PROP_MACADDR(_n, _s, _f) \
diff --git a/net.h b/net.h
index 99b43f4..0256ff9 100644
--- a/net.h
+++ b/net.h
@@ -22,6 +22,7 @@ typedef struct NICConf {
#define DEFINE_NIC_PROPERTIES(_state, _conf) \
DEFINE_PROP_MACADDR("mac", _state, _conf.macaddr), \
+ DEFINE_PROP_VLAN("vlan", _state, _conf.peer), \
DEFINE_PROP_NETDEV("netdev", _state, _conf.peer), \
DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1)
diff --git a/net/hub.c b/net/hub.c
index efd90b5..001f818 100644
--- a/net/hub.c
+++ b/net/hub.c
@@ -205,6 +205,31 @@ NetClientState *net_hub_find_client_by_name(unsigned int
hub_id,
}
/**
+ * Find a available port on a hub; otherwise create one new port
+ */
+NetClientState *net_hub_port_find(unsigned int hub_id)
+{
+ NetHub *hub;
+ NetHubPort *port;
+ NetClientState *nc;
+
+ QLIST_FOREACH(hub, &hubs, next) {
+ if (hub->id == hub_id) {
+ QLIST_FOREACH(port, &hub->ports, next) {
+ nc = port->nc.peer;
+ if (!nc) {
+ return &(port->nc);
+ }
+ }
+ break;
+ }
+ }
+
+ nc = net_hub_add_port(hub_id);
+ return nc;
+}
+
+/**
* Determine if one nc peers with one hub port
*/
bool net_hub_port_peer_nc(NetClientState *nc)
diff --git a/net/hub.h b/net/hub.h
index 550189b..54d6803 100644
--- a/net/hub.h
+++ b/net/hub.h
@@ -23,6 +23,7 @@ NetClientState *net_hub_find_client_by_name(unsigned int
hub_id,
void net_hub_info(Monitor *mon);
int net_hub_id_for_client(NetClientState *nc, unsigned int *id);
void net_hub_check_clients(void);
+NetClientState *net_hub_port_find(unsigned int hub_id);
bool net_hub_port_peer_nc(NetClientState *nc);
#endif /* NET_HUB_H */
--
1.7.6
