datapath-windows: Rename files.

This patch includes the file renaming and accommodations needed for the file
renaming to build the forwarding extension for Hyper-V.

This patch is also a follow-up for the thread:
http://openvswitch.org/pipermail/dev/2014-August/044005.html

Signed-off-by: Samuel Ghinet <sghinet@cloudbasesolutions.com>
Co-authored-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>

1 files changed, 169 insertions, 0 deletions

diff --git a/datapath-windows/ovsext/Switch.h b/datapath-windows/ovsext/Switch.h
new file mode 100644
index 000000000..51992686c
--- /dev/null
+++ b/datapath-windows/ovsext/Switch.h
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2014 VMware, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * This file contains the definition of the switch object for the OVS.
+ */
+
+#ifndef __SWITCH_H_
+#define __SWITCH_H_ 1
+
+#include "NetProto.h"
+#include "BufferMgmt.h"
+#define OVS_MAX_VPORT_ARRAY_SIZE 1024
+
+#define OVS_VPORT_MASK (OVS_MAX_VPORT_ARRAY_SIZE - 1)
+
+#define OVS_INTERNAL_VPORT_DEFAULT_INDEX 0
+
+//Tunnel port indicies
+#define RESERVED_START_INDEX1    1
+#define OVS_TUNNEL_INDEX_START RESERVED_START_INDEX1
+#define OVS_VXLAN_VPORT_INDEX    2
+#define OVS_GRE_VPORT_INDEX      3
+#define OVS_GRE64_VPORT_INDEX    4
+#define OVS_TUNNEL_INDEX_END OVS_GRE64_VPORT_INDEX
+
+#define OVS_EXTERNAL_VPORT_START 8
+#define OVS_EXTERNAL_VPORT_END   40
+#define OVS_INTERNAL_VPORT_START 40
+#define OVS_INTERNAL_VPOR_END    72
+#define OVS_VM_VPORT_START       72
+#define OVS_VM_VPORT_MAX         0xffff
+#define OVS_VPORT_INDEX(_portNo)    ((_portNo) & 0xffffff)
+#define OVS_VPORT_PORT_NO(_index, _gen) \
+          (((_index) & 0xffffff) | ((UINT32)(_gen) << 24))
+#define OVS_VPORT_GEN(portNo) (portNo >> 24)
+
+#define OVS_MAX_PHYS_ADAPTERS    32
+#define OVS_MAX_IP_VPOR          32
+
+#define OVS_HASH_BASIS   0x13578642
+
+typedef struct _OVS_DATAPATH
+{
+   PLIST_ENTRY             flowTable;       // Contains OvsFlows.
+   UINT32                  nFlows;          // Number of entries in flowTable.
+
+   // List_Links              queues[64];      // Hash table of queue IDs.
+
+   /* Statistics. */
+   UINT64                  hits;            // Number of flow table hits.
+   UINT64                  misses;          // Number of flow table misses.
+   UINT64                  lost;            // Number of dropped misses.
+
+   /* Used to protect the flows in the flowtable. */
+   PNDIS_RW_LOCK_EX        lock;
+} OVS_DATAPATH, *POVS_DATAPATH;
+
+/*
+ * OVS_SWITCH_CONTEXT
+ *
+ * The context allocated per switch., For OVS, we only
+ * support one switch which corresponding to one datapath.
+ * Each datapath can have multiple logical bridges configured
+ * which is maintained by vswitchd.
+ */
+
+typedef enum OVS_SWITCH_DATAFLOW_STATE
+{
+    OvsSwitchPaused,
+    OvsSwitchRunning
+} OVS_SWITCH_DATAFLOW_STATE, *POVS_SWITCH_DATAFLOW_STATE;
+
+typedef enum OVS_SWITCH_CONTROFLOW_STATE
+{
+    OvsSwitchUnknown,
+    OvsSwitchAttached,
+    OvsSwitchDetached
+} OVS_SWITCH_CONTROLFLOW_STATE, *POVS_SWITCH_CONTROLFLOW_STATE;
+
+// XXX: Take care of alignment and grouping members by cacheline
+typedef struct _OVS_SWITCH_CONTEXT
+{
+    /* Coarse and fine-grained switch states. */
+    OVS_SWITCH_DATAFLOW_STATE dataFlowState;
+    OVS_SWITCH_CONTROLFLOW_STATE controlFlowState;
+    BOOLEAN                 isActivated;
+    BOOLEAN                 isActivateFailed;
+
+    UINT32                  dpNo;
+
+    NDIS_SWITCH_PORT_ID     externalPortId;
+    NDIS_SWITCH_PORT_ID     internalPortId;
+    PVOID                   externalVport;  // the virtual adapter vport
+    PVOID                   internalVport;
+
+    PVOID                  *vportArray;
+    PLIST_ENTRY             nameHashArray;  // based on ovsName
+    PLIST_ENTRY             portHashArray;  // based on portId
+
+    UINT32                  numPhysicalNics;
+    UINT32                  numVports;     // include validation port
+    UINT32                  lastPortIndex;
+
+    /* Lock taken over the switch. This protects the ports on the switch. */
+    PNDIS_RW_LOCK_EX        dispatchLock;
+
+    /* The flowtable. */
+    OVS_DATAPATH            datapath;
+
+    /* Handle to the OVSExt filter driver. Same as 'gOvsExtDriverHandle'. */
+    NDIS_HANDLE NdisFilterHandle;
+
+    /* Handle and callbacks exposed by the underlying hyper-v switch. */
+    NDIS_SWITCH_CONTEXT NdisSwitchContext;
+    NDIS_SWITCH_OPTIONAL_HANDLERS NdisSwitchHandlers;
+
+    volatile LONG pendingInjectedNblCount;
+    volatile LONG pendingOidCount;
+
+    OVS_NBL_POOL            ovsPool;
+} OVS_SWITCH_CONTEXT, *POVS_SWITCH_CONTEXT;
+
+
+static __inline VOID
+OvsAcquireDatapathRead(OVS_DATAPATH *datapath,
+                       LOCK_STATE_EX *lockState,
+                       BOOLEAN dispatch)
+{
+    ASSERT(datapath);
+    NdisAcquireRWLockRead(datapath->lock, lockState, dispatch);
+}
+
+static __inline VOID
+OvsAcquireDatapathWrite(OVS_DATAPATH *datapath,
+                        LOCK_STATE_EX *lockState,
+                        BOOLEAN dispatch)
+{
+    ASSERT(datapath);
+    NdisAcquireRWLockWrite(datapath->lock, lockState, dispatch);
+}
+
+
+static __inline VOID
+OvsReleaseDatapath(OVS_DATAPATH *datapath,
+                   LOCK_STATE_EX *lockState)
+{
+    ASSERT(datapath);
+    NdisReleaseRWLock(datapath->lock, lockState);
+}
+
+
+PVOID OvsGetVportFromIndex(UINT16 index);
+PVOID OvsGetExternalVport();
+
+#endif /* __SWITCH_H_ */