Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / SLOF / lib / libvirtio / virtio-scsi.h

diff --git a/qemu/roms/SLOF/lib/libvirtio/virtio-scsi.h b/qemu/roms/SLOF/lib/libvirtio/virtio-scsi.h
new file mode 100644 (file)
index 0000000..451ba4d
--- /dev/null
+++ b/qemu/roms/SLOF/lib/libvirtio/virtio-scsi.h
@@ -0,0 +1,69 @@
+/******************************************************************************
+ * Copyright (c) 2012 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+/*
+ * Virtio SCSI Host device definitions.
+ * See Virtio Spec, Appendix I, for details
+ */
+
+#ifndef _VIRTIO_SCSI_H
+#define _VIRTIO_SCSI_H
+
+#define VIRTIO_SCSI_CDB_SIZE      32
+#define VIRTIO_SCSI_SENSE_SIZE    96
+
+#define VIRTIO_SCSI_CONTROL_VQ     0
+#define VIRTIO_SCSI_EVENT_VQ       1
+#define VIRTIO_SCSI_REQUEST_VQ     2
+
+struct virtio_scsi_config
+{
+    uint32_t num_queues;
+    uint32_t seg_max;
+    uint32_t max_sectors;
+    uint32_t cmd_per_lun;
+    uint32_t event_info_size;
+    uint32_t sense_size;
+    uint32_t cdb_size;
+    uint16_t max_channel;
+    uint16_t max_target;
+    uint32_t max_lun;
+} __attribute__((packed));
+
+/* This is the first element of the "out" scatter-gather list. */
+struct virtio_scsi_req_cmd {
+    uint8_t lun[8];
+    uint64_t tag;
+    uint8_t task_attr;
+    uint8_t prio;
+    uint8_t crn;
+    char cdb[VIRTIO_SCSI_CDB_SIZE];
+};
+
+/* This is the first element of the "in" scatter-gather list. */
+struct virtio_scsi_resp_cmd {
+    uint32_t sense_len;
+    uint32_t residual;
+    uint16_t status_qualifier;
+    uint8_t status;
+    uint8_t response;
+    uint8_t sense[VIRTIO_SCSI_SENSE_SIZE];
+};
+
+extern int virtioscsi_init(struct virtio_device *dev);
+extern void virtioscsi_shutdown(struct virtio_device *dev);
+extern int virtioscsi_send(struct virtio_device *dev,
+                          struct virtio_scsi_req_cmd *req,
+                          struct virtio_scsi_resp_cmd *resp,
+                          int is_read, void *buf, uint64_t buf_len);
+
+#endif /*  _VIRTIO_SCSI_H */