These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / staging / unisys / visorbus / vbuschannel.h

diff --git a/kernel/drivers/staging/unisys/visorbus/vbuschannel.h b/kernel/drivers/staging/unisys/visorbus/vbuschannel.h
new file mode 100644 (file)
index 0000000..80e6447
--- /dev/null
+++ b/kernel/drivers/staging/unisys/visorbus/vbuschannel.h
@@ -0,0 +1,93 @@
+/* Copyright (C) 2010 - 2015 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ */
+
+#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 "vbusdeviceinfo.h"
+#include "channel.h"
+
+/* {193b331b-c58f-11da-95a9-00e08161165f} */
+#define SPAR_VBUS_CHANNEL_PROTOCOL_UUID \
+               UUID_LE(0x193b331b, 0xc58f, 0x11da, \
+                               0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f)
+static const uuid_le spar_vbus_channel_protocol_uuid =
+       SPAR_VBUS_CHANNEL_PROTOCOL_UUID;
+
+#define SPAR_VBUS_CHANNEL_PROTOCOL_SIGNATURE ULTRA_CHANNEL_PROTOCOL_SIGNATURE
+
+/* 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 SPAR_VBUS_CHANNEL_PROTOCOL_VERSIONID 1
+
+#define SPAR_VBUS_CHANNEL_OK_CLIENT(ch)       \
+       spar_check_channel_client(ch,                           \
+                                  spar_vbus_channel_protocol_uuid,     \
+                                  "vbus",                              \
+                                  sizeof(struct spar_vbus_channel_protocol),\
+                                  SPAR_VBUS_CHANNEL_PROTOCOL_VERSIONID, \
+                                  SPAR_VBUS_CHANNEL_PROTOCOL_SIGNATURE)
+
+#define SPAR_VBUS_CHANNEL_OK_SERVER(actual_bytes)    \
+       (spar_check_channel_server(spar_vbus_channel_protocol_uuid,     \
+                                  "vbus",                              \
+                                  sizeof(struct spar_vbus_channel_protocol),\
+                                  actual_bytes))
+
+#pragma pack(push, 1)          /* both GCC and VC now allow this pragma */
+struct spar_vbus_headerinfo {
+       u32 struct_bytes;       /* size of this struct in bytes */
+       u32 device_info_struct_bytes;   /* sizeof(ULTRA_VBUS_DEVICEINFO) */
+       u32 dev_info_count;     /* num of items in DevInfo member */
+       /* (this is the allocated size) */
+       u32 chp_info_offset;    /* byte offset from beginning of this struct */
+       /* to the ChpInfo struct (below) */
+       u32 bus_info_offset;    /* byte offset from beginning of this struct */
+       /* to the BusInfo struct (below) */
+       u32 dev_info_offset;    /* byte offset from beginning of this struct */
+       /* to the DevInfo array (below) */
+       u8 reserved[104];
+};
+
+struct spar_vbus_channel_protocol {
+       struct channel_header channel_header;   /* initialized by server */
+       struct spar_vbus_headerinfo hdr_info;   /* initialized by server */
+       /* the remainder of this channel is filled in by the client */
+       struct ultra_vbus_deviceinfo chp_info;
+       /* describes client chipset device and driver */
+       struct ultra_vbus_deviceinfo bus_info;
+       /* describes client bus device and driver */
+       struct ultra_vbus_deviceinfo dev_info[0];
+       /* describes client device and driver for each device on the bus */
+};
+
+#define VBUS_CH_SIZE_EXACT(MAXDEVICES) \
+       (sizeof(ULTRA_VBUS_CHANNEL_PROTOCOL) + ((MAXDEVICES) * \
+                                               sizeof(ULTRA_VBUS_DEVICEINFO)))
+#define VBUS_CH_SIZE(MAXDEVICES) COVER(VBUS_CH_SIZE_EXACT(MAXDEVICES), 4096)
+
+#pragma pack(pop)
+
+#endif