Split the virtio.h header file into multiple files

Reorganize the previous contexts of the file as it is in Linux. The
eventual goal is to install the header files and share them between
the kernel and bhyve.

MFC after:	1 week

sys/dev/virtio/pci/virtio_pci.c

@@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$");
 #include <dev/pci/pcireg.h>
 
 #include <dev/virtio/virtio.h>
+#include <dev/virtio/virtio_config.h>
 #include <dev/virtio/virtqueue.h>
 #include <dev/virtio/pci/virtio_pci.h>
 

sys/dev/virtio/virtio.c

@@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/rman.h>
 
 #include <dev/virtio/virtio.h>
+#include <dev/virtio/virtio_config.h>
 #include <dev/virtio/virtqueue.h>
 
 #include "virtio_bus_if.h"

sys/dev/virtio/virtio.h

@@ -1,29 +1,27 @@
 /*-
- * This header is BSD licensed so anyone can use the definitions to implement
+ * Copyright (c) 2014, Bryan Venteicher <bryanv@FreeBSD.org>
- * compatible drivers/servers.
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
+ *    notice unmodified, this list of conditions, and the following
+ *    disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of IBM nor the names of its contributors
+ *
- *    may be used to endorse or promote products derived from this software
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- *    without specific prior written permission.
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
  *
  * $FreeBSD$
  */
@@ -31,45 +29,10 @@
 #ifndef _VIRTIO_H_
 #define _VIRTIO_H_
 
+#include <dev/virtio/virtio_ids.h>
+
 struct vq_alloc_info;
 
-/* VirtIO device IDs. */
-#define VIRTIO_ID_NETWORK	0x01
-#define VIRTIO_ID_BLOCK		0x02
-#define VIRTIO_ID_CONSOLE	0x03
-#define VIRTIO_ID_ENTROPY	0x04
-#define VIRTIO_ID_BALLOON	0x05
-#define VIRTIO_ID_IOMEMORY	0x06
-#define VIRTIO_ID_SCSI		0x08
-#define VIRTIO_ID_9P		0x09
-
-/* Status byte for guest to report progress. */
-#define VIRTIO_CONFIG_STATUS_RESET	0x00
-#define VIRTIO_CONFIG_STATUS_ACK	0x01
-#define VIRTIO_CONFIG_STATUS_DRIVER	0x02
-#define VIRTIO_CONFIG_STATUS_DRIVER_OK	0x04
-#define VIRTIO_CONFIG_STATUS_FAILED	0x80
-
-/*
- * Generate interrupt when the virtqueue ring is
- * completely used, even if we've suppressed them.
- */
-#define VIRTIO_F_NOTIFY_ON_EMPTY (1 << 24)
-
-/*
- * The guest should never negotiate this feature; it
- * is used to detect faulty drivers.
- */
-#define VIRTIO_F_BAD_FEATURE (1 << 30)
-
-/*
- * Some VirtIO feature bits (currently bits 28 through 31) are
- * reserved for the transport being used (eg. virtio_ring), the
- * rest are per-device feature bits.
- */
-#define VIRTIO_TRANSPORT_F_START	28
-#define VIRTIO_TRANSPORT_F_END		32
-
 /*
  * Each virtqueue indirect descriptor list must be physically contiguous.
  * To allow us to malloc(9) each list individually, limit the number

sys/dev/virtio/virtio_config.h

@@ -0,0 +1,61 @@
+/*-
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _VIRTIO_CONFIG_H_
+#define _VIRTIO_CONFIG_H_
+
+/* Status byte for guest to report progress. */
+#define VIRTIO_CONFIG_STATUS_RESET	0x00
+#define VIRTIO_CONFIG_STATUS_ACK	0x01
+#define VIRTIO_CONFIG_STATUS_DRIVER	0x03
+#define VIRTIO_CONFIG_STATUS_DRIVER_OK	0x04
+#define VIRTIO_CONFIG_STATUS_FAILED	0x80
+
+/*
+ * Generate interrupt when the virtqueue ring is
+ * completely used, even if we've suppressed them.
+ */
+#define VIRTIO_F_NOTIFY_ON_EMPTY (1 << 24)
+
+/*
+ * The guest should never negotiate this feature; it
+ * is used to detect faulty drivers.
+ */
+#define VIRTIO_F_BAD_FEATURE (1 << 30)
+
+/*
+ * Some VirtIO feature bits (currently bits 28 through 31) are
+ * reserved for the transport being used (eg. virtio_ring), the
+ * rest are per-device feature bits.
+ */
+#define VIRTIO_TRANSPORT_F_START	28
+#define VIRTIO_TRANSPORT_F_END		32
+
+#endif /* _VIRTIO_CONFIG_H_ */

sys/dev/virtio/virtio_ids.h

@@ -0,0 +1,44 @@
+/*-
+ * This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _VIRTIO_IDS_H_
+#define _VIRTIO_IDS_H_
+
+/* VirtIO device IDs. */
+#define VIRTIO_ID_NETWORK	0x01
+#define VIRTIO_ID_BLOCK		0x02
+#define VIRTIO_ID_CONSOLE	0x03
+#define VIRTIO_ID_ENTROPY	0x04
+#define VIRTIO_ID_BALLOON	0x05
+#define VIRTIO_ID_IOMEMORY	0x06
+#define VIRTIO_ID_SCSI		0x08
+#define VIRTIO_ID_9P		0x09
+
+#endif /* _VIRTIO_IDS_H_ */

sys/dev/virtio/virtqueue.c

@@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/rman.h>
 
 #include <dev/virtio/virtio.h>
+#include <dev/virtio/virtio_config.h>
 #include <dev/virtio/virtqueue.h>
 #include <dev/virtio/virtio_ring.h>