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From fc5d5887462da813d91a3a0649214313d580d7af Mon Sep 17 00:00:00 2001
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From: Claudio Imbrenda <cimbrend@redhat.com>
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Date: Tue, 27 Oct 2020 12:02:16 -0400
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Subject: [PATCH 03/18] virtio: add vhost-user-fs-ccw device
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RH-Author: Claudio Imbrenda <cimbrend@redhat.com>
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Message-id: <20201027120217.2997314-3-cimbrend@redhat.com>
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Patchwork-id: 98720
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O-Subject: [RHEL8.4 qemu-kvm PATCH 2/3] virtio: add vhost-user-fs-ccw device
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Bugzilla: 1857733
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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From: Halil Pasic <pasic@linux.ibm.com>
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upstream bd0bbb9aba2afbc2ea24b0475be04f795468b381
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fixed for the backport:
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* makefile logic instead of meson
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* old style qdev initialization
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* old style device class properties
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--
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Wire up the CCW device for vhost-user-fs.
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Reviewed-by: Cornelia Huck <cohuck@redhat.com>
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Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
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Message-id: 20200901150019.29229-2-mhartmay@linux.ibm.com
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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hw/s390x/Makefile.objs | 1 +
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hw/s390x/vhost-user-fs-ccw.c | 76 ++++++++++++++++++++++++++++++++++++
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2 files changed, 77 insertions(+)
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create mode 100644 hw/s390x/vhost-user-fs-ccw.c
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diff --git a/hw/s390x/Makefile.objs b/hw/s390x/Makefile.objs
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index a46a1c7894e..c4086ec3171 100644
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--- a/hw/s390x/Makefile.objs
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+++ b/hw/s390x/Makefile.objs
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@@ -20,6 +20,7 @@ obj-$(CONFIG_VIRTIO_NET) += virtio-ccw-net.o
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obj-$(CONFIG_VIRTIO_BLK) += virtio-ccw-blk.o
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obj-$(call land,$(CONFIG_VIRTIO_9P),$(CONFIG_VIRTFS)) += virtio-ccw-9p.o
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obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock-ccw.o
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+obj-$(CONFIG_VHOST_USER_FS) += vhost-user-fs-ccw.o
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endif
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obj-y += css-bridge.o
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obj-y += ccw-device.o
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diff --git a/hw/s390x/vhost-user-fs-ccw.c b/hw/s390x/vhost-user-fs-ccw.c
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new file mode 100644
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index 00000000000..e7b165d5f61
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--- /dev/null
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+++ b/hw/s390x/vhost-user-fs-ccw.c
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@@ -0,0 +1,76 @@
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+/*
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+ * virtio ccw vhost-user-fs implementation
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+ *
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+ * Copyright 2020 IBM Corp.
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+ *
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+ * This work is licensed under the terms of the GNU GPL, version 2 or (at
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+ * your option) any later version. See the COPYING file in the top-level
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+ * directory.
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+ */
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+#include "qemu/osdep.h"
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+#include "hw/qdev-properties.h"
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+#include "qapi/error.h"
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+#include "hw/virtio/vhost-user-fs.h"
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+#include "virtio-ccw.h"
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+
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+typedef struct VHostUserFSCcw {
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+ VirtioCcwDevice parent_obj;
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+ VHostUserFS vdev;
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+} VHostUserFSCcw;
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+
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+#define TYPE_VHOST_USER_FS_CCW "vhost-user-fs-ccw"
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+#define VHOST_USER_FS_CCW(obj) \
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+ OBJECT_CHECK(VHostUserFSCcw, (obj), TYPE_VHOST_USER_FS_CCW)
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+
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+
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+static Property vhost_user_fs_ccw_properties[] = {
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+ DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
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+ VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
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+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
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+ VIRTIO_CCW_MAX_REV),
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+ DEFINE_PROP_END_OF_LIST(),
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+};
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+
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+static void vhost_user_fs_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
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+{
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+ VHostUserFSCcw *dev = VHOST_USER_FS_CCW(ccw_dev);
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+ DeviceState *vdev = DEVICE(&dev->vdev);
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+
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+ qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
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+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
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+}
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+
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+static void vhost_user_fs_ccw_instance_init(Object *obj)
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+{
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+ VHostUserFSCcw *dev = VHOST_USER_FS_CCW(obj);
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+ VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
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+
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+ ccw_dev->force_revision_1 = true;
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+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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+ TYPE_VHOST_USER_FS);
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+}
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+
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+static void vhost_user_fs_ccw_class_init(ObjectClass *klass, void *data)
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+{
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+ DeviceClass *dc = DEVICE_CLASS(klass);
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+ VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
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+
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+ k->realize = vhost_user_fs_ccw_realize;
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+ dc->props = vhost_user_fs_ccw_properties;
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+ set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
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+}
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+
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+static const TypeInfo vhost_user_fs_ccw = {
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+ .name = TYPE_VHOST_USER_FS_CCW,
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+ .parent = TYPE_VIRTIO_CCW_DEVICE,
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+ .instance_size = sizeof(VHostUserFSCcw),
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+ .instance_init = vhost_user_fs_ccw_instance_init,
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+ .class_init = vhost_user_fs_ccw_class_init,
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+};
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+
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+static void vhost_user_fs_ccw_register(void)
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+{
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+ type_register_static(&vhost_user_fs_ccw);
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+}
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+
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+type_init(vhost_user_fs_ccw_register)
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--
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2.27.0
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