drivers: visorbus: move driver out of staging

Move the visorbus driver out of staging (drivers/staging/unisys/visorbus)
and to drivers/visorbus. Modify the configuration and makefiles so they
now reference the new location. The s-Par header file visorbus.h that is
referenced by all s-Par drivers, is being moved into include/linux.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 95 insertions, 0 deletions

diff --git a/drivers/visorbus/vbuschannel.h b/drivers/visorbus/vbuschannel.h
new file mode 100644
index 000000000000..b1dce26166bf
--- /dev/null
+++ b/drivers/visorbus/vbuschannel.h
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2010 - 2015 UNISYS CORPORATION
+ * All rights reserved.
+ */
+
+#ifndef __VBUSCHANNEL_H__
+#define __VBUSCHANNEL_H__
+
+/*
+ * The vbus channel is the channel area provided via the BUS_CREATE controlvm
+ * message for each virtual bus.  This channel area is provided to both server
+ * and client ends of the bus.  The channel header area is initialized by
+ * the server, and the remaining information is filled in by the client.
+ * We currently use this for the client to provide various information about
+ * the client devices and client drivers for the server end to see.
+ */
+
+#include <linux/uuid.h>
+#include <linux/visorbus.h>
+
+/* {193b331b-c58f-11da-95a9-00e08161165f} */
+#define VISOR_VBUS_CHANNEL_GUID						\
+	GUID_INIT(0x193b331b, 0xc58f, 0x11da,				\
+		  0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f)
+
+/*
+ * Must increment this whenever you insert or delete fields within this channel
+ * struct.  Also increment whenever you change the meaning of fields within this
+ * channel struct so as to break pre-existing software.  Note that you can
+ * usually add fields to the END of the channel struct withOUT needing to
+ * increment this.
+ */
+#define VISOR_VBUS_CHANNEL_VERSIONID 1
+
+/*
+ * struct visor_vbus_deviceinfo
+ * @devtype:  Short string identifying the device type.
+ * @drvname:  Driver .sys file name.
+ * @infostrs: Kernel vversion.
+ * @reserved: Pad size to 256 bytes.
+ *
+ * An array of this struct is present in the channel area for each vbus. It is
+ * filled in by the client side to provide info about the device and driver from
+ * the client's perspective.
+ */
+struct visor_vbus_deviceinfo {
+	u8 devtype[16];
+	u8 drvname[16];
+	u8 infostrs[96];
+	u8 reserved[128];
+} __packed;
+
+/*
+ * struct visor_vbus_headerinfo
+ * @struct_bytes:	      Size of this struct in bytes.
+ * @device_info_struct_bytes: Size of VISOR_VBUS_DEVICEINFO.
+ * @dev_info_count:	      Num of items in DevInfo member. This is the
+ *			      allocated size.
+ * @chp_info_offset:	      Byte offset from beginning of this struct to the
+ *			      ChpInfo struct.
+ * @bus_info_offset:	      Byte offset from beginning of this struct to the
+ *			      BusInfo struct.
+ * @dev_info_offset:	      Byte offset from beginning of this struct to the
+ *			      DevInfo array.
+ * @reserved:		      Natural alignment.
+ */
+struct visor_vbus_headerinfo {
+	u32 struct_bytes;
+	u32 device_info_struct_bytes;
+	u32 dev_info_count;
+	u32 chp_info_offset;
+	u32 bus_info_offset;
+	u32 dev_info_offset;
+	u8 reserved[104];
+} __packed;
+
+/*
+ * struct visor_vbus_channel
+ * @channel_header: Initialized by server.
+ * @hdr_info:	    Initialized by server.
+ * @chp_info:	    Describes client chipset device and driver.
+ * @bus_info:	    Describes client bus device and driver.
+ * @dev_info:	    Describes client device and driver for each device on the
+ *		    bus.
+ */
+struct visor_vbus_channel {
+	struct channel_header channel_header;
+	struct visor_vbus_headerinfo hdr_info;
+	struct visor_vbus_deviceinfo chp_info;
+	struct visor_vbus_deviceinfo bus_info;
+	struct visor_vbus_deviceinfo dev_info[0];
+} __packed;
+
+#endif