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-rw-r--r--qemu/include/hw/virtio/vhost-scsi.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/qemu/include/hw/virtio/vhost-scsi.h b/qemu/include/hw/virtio/vhost-scsi.h
new file mode 100644
index 000000000..701bfee61
--- /dev/null
+++ b/qemu/include/hw/virtio/vhost-scsi.h
@@ -0,0 +1,69 @@
+/*
+ * vhost_scsi host device
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#ifndef VHOST_SCSI_H
+#define VHOST_SCSI_H
+
+#include "qemu-common.h"
+#include "hw/qdev.h"
+#include "hw/virtio/virtio-scsi.h"
+#include "hw/virtio/vhost.h"
+
+/*
+ * Used by QEMU userspace to ensure a consistent vhost-scsi ABI.
+ *
+ * ABI Rev 0: July 2012 version starting point for v3.6-rc merge candidate +
+ * RFC-v2 vhost-scsi userspace. Add GET_ABI_VERSION ioctl usage
+ * ABI Rev 1: January 2013. Ignore vhost_tpgt filed in struct vhost_scsi_target.
+ * All the targets under vhost_wwpn can be seen and used by guest.
+ */
+
+#define VHOST_SCSI_ABI_VERSION 1
+
+/* TODO #include <linux/vhost.h> properly */
+/* For VHOST_SCSI_SET_ENDPOINT/VHOST_SCSI_CLEAR_ENDPOINT ioctl */
+struct vhost_scsi_target {
+ int abi_version;
+ char vhost_wwpn[224];
+ unsigned short vhost_tpgt;
+ unsigned short reserved;
+};
+
+enum vhost_scsi_vq_list {
+ VHOST_SCSI_VQ_CONTROL = 0,
+ VHOST_SCSI_VQ_EVENT = 1,
+ VHOST_SCSI_VQ_NUM_FIXED = 2,
+};
+
+#define VHOST_VIRTIO 0xAF
+#define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target)
+#define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target)
+#define VHOST_SCSI_GET_ABI_VERSION _IOW(VHOST_VIRTIO, 0x42, int)
+
+#define TYPE_VHOST_SCSI "vhost-scsi"
+#define VHOST_SCSI(obj) \
+ OBJECT_CHECK(VHostSCSI, (obj), TYPE_VHOST_SCSI)
+
+typedef struct VHostSCSI {
+ VirtIOSCSICommon parent_obj;
+
+ Error *migration_blocker;
+
+ struct vhost_dev dev;
+ int32_t bootindex;
+ int channel;
+ int target;
+ int lun;
+} VHostSCSI;
+
+#endif