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Diffstat (limited to 'net/net.c')
-rw-r--r--net/net.c113
1 files changed, 81 insertions, 32 deletions
diff --git a/net/net.c b/net/net.c
index 98a1934b62..98068625d4 100644
--- a/net/net.c
+++ b/net/net.c
@@ -236,28 +236,44 @@ NICState *qemu_new_nic(NetClientInfo *info,
void *opaque)
{
NetClientState *nc;
+ NetClientState **peers = conf->peers.ncs;
NICState *nic;
+ int i;
assert(info->type == NET_CLIENT_OPTIONS_KIND_NIC);
assert(info->size >= sizeof(NICState));
- nc = qemu_new_net_client(info, conf->peer, model, name);
+ nc = qemu_new_net_client(info, peers[0], model, name);
+ nc->queue_index = 0;
nic = qemu_get_nic(nc);
nic->conf = conf;
nic->opaque = opaque;
+ for (i = 1; i < conf->queues; i++) {
+ qemu_net_client_setup(&nic->ncs[i], info, peers[i], model, nc->name,
+ NULL);
+ nic->ncs[i].queue_index = i;
+ }
+
return nic;
}
+NetClientState *qemu_get_subqueue(NICState *nic, int queue_index)
+{
+ return &nic->ncs[queue_index];
+}
+
NetClientState *qemu_get_queue(NICState *nic)
{
- return &nic->nc;
+ return qemu_get_subqueue(nic, 0);
}
NICState *qemu_get_nic(NetClientState *nc)
{
- return DO_UPCAST(NICState, nc, nc);
+ NetClientState *nc0 = nc - nc->queue_index;
+
+ return DO_UPCAST(NICState, ncs[0], nc0);
}
void *qemu_get_nic_opaque(NetClientState *nc)
@@ -271,9 +287,7 @@ static void qemu_cleanup_net_client(NetClientState *nc)
{
QTAILQ_REMOVE(&net_clients, nc, next);
- if (nc->info->cleanup) {
- nc->info->cleanup(nc);
- }
+ nc->info->cleanup(nc);
}
static void qemu_free_net_client(NetClientState *nc)
@@ -293,6 +307,17 @@ static void qemu_free_net_client(NetClientState *nc)
void qemu_del_net_client(NetClientState *nc)
{
+ NetClientState *ncs[MAX_QUEUE_NUM];
+ int queues, i;
+
+ /* If the NetClientState belongs to a multiqueue backend, we will change all
+ * other NetClientStates also.
+ */
+ queues = qemu_find_net_clients_except(nc->name, ncs,
+ NET_CLIENT_OPTIONS_KIND_NIC,
+ MAX_QUEUE_NUM);
+ assert(queues != 0);
+
/* If there is a peer NIC, delete and cleanup client, but do not free. */
if (nc->peer && nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
NICState *nic = qemu_get_nic(nc->peer);
@@ -300,34 +325,47 @@ void qemu_del_net_client(NetClientState *nc)
return;
}
nic->peer_deleted = true;
- /* Let NIC know peer is gone. */
- nc->peer->link_down = true;
+
+ for (i = 0; i < queues; i++) {
+ ncs[i]->peer->link_down = true;
+ }
+
if (nc->peer->info->link_status_changed) {
nc->peer->info->link_status_changed(nc->peer);
}
- qemu_cleanup_net_client(nc);
+
+ for (i = 0; i < queues; i++) {
+ qemu_cleanup_net_client(ncs[i]);
+ }
+
return;
}
assert(nc->info->type != NET_CLIENT_OPTIONS_KIND_NIC);
- qemu_cleanup_net_client(nc);
- qemu_free_net_client(nc);
+ for (i = 0; i < queues; i++) {
+ qemu_cleanup_net_client(ncs[i]);
+ qemu_free_net_client(ncs[i]);
+ }
}
void qemu_del_nic(NICState *nic)
{
- NetClientState *nc = qemu_get_queue(nic);
+ int i, queues = nic->conf->queues;
+
/* If this is a peer NIC and peer has already been deleted, free it now. */
- if (nc->peer && nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
- NICState *nic = qemu_get_nic(nc);
- if (nic->peer_deleted) {
- qemu_free_net_client(nc->peer);
+ if (nic->peer_deleted) {
+ for (i = 0; i < queues; i++) {
+ qemu_free_net_client(qemu_get_subqueue(nic, i)->peer);
}
}
- qemu_cleanup_net_client(nc);
- qemu_free_net_client(nc);
+ for (i = queues - 1; i >= 0; i--) {
+ NetClientState *nc = qemu_get_subqueue(nic, i);
+
+ qemu_cleanup_net_client(nc);
+ qemu_free_net_client(nc);
+ }
}
void qemu_foreach_nic(qemu_nic_foreach func, void *opaque)
@@ -336,7 +374,9 @@ void qemu_foreach_nic(qemu_nic_foreach func, void *opaque)
QTAILQ_FOREACH(nc, &net_clients, next) {
if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
- func(qemu_get_nic(nc), opaque);
+ if (nc->queue_index == 0) {
+ func(qemu_get_nic(nc), opaque);
+ }
}
}
}
@@ -911,8 +951,10 @@ void qmp_netdev_del(const char *id, Error **errp)
void print_net_client(Monitor *mon, NetClientState *nc)
{
- monitor_printf(mon, "%s: type=%s,%s\n", nc->name,
- NetClientOptionsKind_lookup[nc->info->type], nc->info_str);
+ monitor_printf(mon, "%s: index=%d,type=%s,%s\n", nc->name,
+ nc->queue_index,
+ NetClientOptionsKind_lookup[nc->info->type],
+ nc->info_str);
}
void do_info_network(Monitor *mon, const QDict *qdict)
@@ -943,20 +985,23 @@ void do_info_network(Monitor *mon, const QDict *qdict)
void qmp_set_link(const char *name, bool up, Error **errp)
{
- NetClientState *nc = NULL;
+ NetClientState *ncs[MAX_QUEUE_NUM];
+ NetClientState *nc;
+ int queues, i;
- QTAILQ_FOREACH(nc, &net_clients, next) {
- if (!strcmp(nc->name, name)) {
- goto done;
- }
- }
-done:
- if (!nc) {
+ 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;
}
+ nc = ncs[0];
- nc->link_down = !up;
+ for (i = 0; i < queues; i++) {
+ ncs[i]->link_down = !up;
+ }
if (nc->info->link_status_changed) {
nc->info->link_status_changed(nc);
@@ -976,9 +1021,13 @@ done:
void net_cleanup(void)
{
- NetClientState *nc, *next_vc;
+ NetClientState *nc;
- QTAILQ_FOREACH_SAFE(nc, &net_clients, next, next_vc) {
+ /* We may del multiple entries during qemu_del_net_client(),
+ * so QTAILQ_FOREACH_SAFE() is also not safe here.
+ */
+ while (!QTAILQ_EMPTY(&net_clients)) {
+ nc = QTAILQ_FIRST(&net_clients);
if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
qemu_del_nic(qemu_get_nic(nc));
} else {