[Qemu-devel] [PATCH V3 05/14] virtio-s390: switch to bus specific queue limit

[Jason Wang <jasowang@redhat.com>]

Instead of depending on marco, switch to use a bus specific queue
limit. Left is AdapterRouters->gsi[], this could be done in the future
if we want to increase s390's queue limit really.

Cc: Alexander Graf <agraf@suse.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/s390x/s390-virtio-bus.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index d48590a..dc147e0 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -45,6 +45,8 @@
     do { } while (0)
 #endif
 
+#define VIRTIO_S390_QUEUE_MAX 64
+
 static void virtio_s390_bus_new(VirtioBusState *bus, size_t bus_size,
                                 VirtIOS390Device *dev);
 
@@ -331,7 +333,7 @@ static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
     VirtIODevice *vdev = dev->vdev;
     int num_vq;
 
-    for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) {
+    for (num_vq = 0; num_vq < virtio_get_queue_max(vdev); num_vq++) {
         if (!virtio_queue_get_num(vdev, num_vq)) {
             break;
         }
@@ -438,7 +440,7 @@ VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
         VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
 
-        for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+        for(i = 0; i < virtio_get_queue_max(dev->vdev); i++) {
             if (!virtio_queue_get_addr(dev->vdev, i))
                 break;
             if (virtio_queue_get_addr(dev->vdev, i) == mem) {
@@ -707,7 +709,7 @@ static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
     bus_class->max_dev = 1;
     k->notify = virtio_s390_notify;
     k->get_features = virtio_s390_get_features;
-    k->queue_max = VIRTIO_PCI_QUEUE_MAX;
+    k->queue_max = VIRTIO_S390_QUEUE_MAX;
 }
 
 static const TypeInfo virtio_s390_bus_info = {
-- 
2.1.0