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authorHalil Pasic <pasic@linux.vnet.ibm.com>2016-12-09 20:00:21 +0100
committerCornelia Huck <cornelia.huck@de.ibm.com>2017-02-24 10:15:18 +0100
commit069097dad311ac9c6933d95ebee7c0b53b3378c4 (patch)
treea6ea35a2924ad69c98e558522e15737720c909b0 /include
parent0708afa704f4f06d823af5757b1a331cc5fce438 (diff)
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s390x: bump ADAPTER_ROUTES_MAX_GSI
Let's increase ADAPTER_ROUTES_MAX_GSI to VIRTIO_QUEUE_MAX which is the largest demand foreseeable at the moment. Let us add a compatibility macro for the previous machines so client code can maintain backwards migration compatibility To not mess up migration compatibility for virtio-ccw VIRTIO_CCW_QUEUE_MAX is left at it's current value, and will be dropped when virtio-ccw is converted to use the capability of the flic introduced by this patch. Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'include')
-rw-r--r--include/hw/s390x/s390_flic.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/hw/s390x/s390_flic.h b/include/hw/s390x/s390_flic.h
index 9f0b05c..7f8ec75 100644
--- a/include/hw/s390x/s390_flic.h
+++ b/include/hw/s390x/s390_flic.h
@@ -17,8 +17,14 @@
#include "hw/s390x/adapter.h"
#include "hw/virtio/virtio.h"
-#define ADAPTER_ROUTES_MAX_GSI 64
-#define VIRTIO_CCW_QUEUE_MAX ADAPTER_ROUTES_MAX_GSI
+/*
+ * Reserve enough gsis to accommodate all virtio devices.
+ * If any other user of adapter routes needs more of these,
+ * we need to bump the value; but virtio looks like the
+ * maximum right now.
+ */
+#define ADAPTER_ROUTES_MAX_GSI VIRTIO_QUEUE_MAX
+#define VIRTIO_CCW_QUEUE_MAX 64
typedef struct AdapterRoutes {
AdapterInfo adapter;