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net: Use hubs for the vlan feature

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Stop using the special-case vlan code in net.c.  Instead use the hub net
client to implement the vlan feature.  The next patch will remove vlan
code from net.c completely.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2012-07-24 16:35:05 +01:00
parent f6c874e300
commit d33d93b2c4
14 changed files with 85 additions and 75 deletions
Download patch file Download diff file Expand all files Collapse all files

37
net.c
View file

@ -157,23 +157,25 @@ void qemu_macaddr_default_if_unset(MACAddr *macaddr)
macaddr->a[5] = 0x56 + index++;
}
/**
* Generate a name for net client
*
* Only net clients created with the legacy -net option need this. Naming is
* mandatory for net clients created with -netdev.
*/
static char *assign_name(VLANClientState *vc1, const char *model)
{
VLANState *vlan;
VLANClientState *vc;
char buf[256];
int id = 0;
QTAILQ_FOREACH(vlan, &vlans, next) {
QTAILQ_FOREACH(vc, &vlan->clients, next) {
if (vc != vc1 && strcmp(vc->model, model) == 0) {
id++;
}
}
}
QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
if (vc != vc1 && strcmp(vc->model, model) == 0) {
if (vc == vc1) {
continue;
}
/* For compatibility only bump id for net clients on a vlan */
if (strcmp(vc->model, model) == 0 &&
net_hub_id_for_client(vc, NULL) == 0) {
id++;
}
}
@ -750,7 +752,7 @@ int net_handle_fd_param(Monitor *mon, const char *param)
}
static int net_init_nic(const NetClientOptions *opts, const char *name,
VLANState *vlan)
VLANClientState *peer)
{
int idx;
NICInfo *nd;
@ -776,8 +778,8 @@ static int net_init_nic(const NetClientOptions *opts, const char *name,
return -1;
}
} else {
assert(vlan);
nd->vlan = vlan;
assert(peer);
nd->netdev = peer;
}
if (name) {
nd->name = g_strdup(name);
@ -816,7 +818,7 @@ static int net_init_nic(const NetClientOptions *opts, const char *name,
static int (* const net_client_init_fun[NET_CLIENT_OPTIONS_KIND_MAX])(
const NetClientOptions *opts,
const char *name,
VLANState *vlan) = {
VLANClientState *peer) = {
[NET_CLIENT_OPTIONS_KIND_NIC] = net_init_nic,
#ifdef CONFIG_SLIRP
[NET_CLIENT_OPTIONS_KIND_USER] = net_init_slirp,
@ -876,17 +878,17 @@ static int net_client_init1(const void *object, int is_netdev, Error **errp)
}
if (net_client_init_fun[opts->kind]) {
VLANState *vlan = NULL;
VLANClientState *peer = NULL;
/* Do not add to a vlan if it's a -netdev or a nic with a netdev=
* parameter. */
if (!is_netdev &&
(opts->kind != NET_CLIENT_OPTIONS_KIND_NIC ||
!opts->nic->has_netdev)) {
vlan = qemu_find_vlan(u.net->has_vlan ? u.net->vlan : 0, true);
peer = net_hub_add_port(u.net->has_vlan ? u.net->vlan : 0, NULL);
}
if (net_client_init_fun[opts->kind](opts, name, vlan) < 0) {
if (net_client_init_fun[opts->kind](opts, name, peer) < 0) {
/* TODO push error reporting into init() methods */
error_set(errp, QERR_DEVICE_INIT_FAILED,
NetClientOptionsKind_lookup[opts->kind]);
@ -1085,6 +1087,7 @@ void do_info_network(Monitor *mon)
print_net_client(mon, peer);
}
}
net_hub_info(mon);
}
void qmp_set_link(const char *name, bool up, Error **errp)