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, 124 insertions, 0 deletions

diff --git a/datapath-windows/ovsext/BufferMgmt.h b/datapath-windows/ovsext/BufferMgmt.h
new file mode 100644
index 000000000..915d7f555
--- /dev/null
+++ b/datapath-windows/ovsext/BufferMgmt.h
@@ -0,0 +1,124 @@
+/*
+ * 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.
+ */
+
+#ifndef __BUFFER_MGMT_H_
+#define __BUFFER_MGMT_H_ 1
+
+#define MEM_ALIGN                       MEMORY_ALLOCATION_ALIGNMENT
+#define MEM_ALIGN_SIZE(_x)  ((MEM_ALIGN - 1 + (_x))/MEM_ALIGN * MEM_ALIGN)
+#define OVS_CTX_MAGIC                   0xabcd
+
+#define OVS_DEFAULT_NBL_CONTEXT_SIZE    MEM_ALIGN_SIZE(64)
+#define OVS_DEFAULT_NBL_CONTEXT_FILL    \
+      (OVS_DEFAULT_NBL_CONTEXT_SIZE - sizeof (OVS_BUFFER_CONTEXT))
+
+#define OVS_DEFAULT_DATA_SIZE           256
+#define OVS_DEFAULT_HEADROOM_SIZE       128
+#define OVS_FIX_NBL_DATA_SIZE    (OVS_DEFAULT_DATA_SIZE + OVS_DEFAULT_HEADROOM_SIZE)
+
+/* Default we copy 18 bytes, to make sure ethernet header and vlan is in
+ * continuous buffer */
+#define OVS_DEFAULT_COPY_SIZE          18
+
+enum {
+    OVS_BUFFER_NEED_COMPLETE            = BIT16(0),
+    OVS_BUFFER_PRIVATE_MDL              = BIT16(1),
+    OVS_BUFFER_PRIVATE_DATA             = BIT16(2),
+    OVS_BUFFER_PRIVATE_NET_BUFFER       = BIT16(3),
+    OVS_BUFFER_PRIVATE_FORWARD_CONTEXT  = BIT16(4),
+    OVS_BUFFER_PRIVATE_CONTEXT          = BIT16(5),
+    OVS_BUFFER_FROM_FIX_SIZE_POOL       = BIT16(6),
+    OVS_BUFFER_FROM_ZERO_SIZE_POOL      = BIT16(7),
+    OVS_BUFFER_FROM_NBL_ONLY_POOL       = BIT16(8),
+    OVS_BUFFER_RECV_BUFFER              = BIT16(9),
+    OVS_BUFFER_SEND_BUFFER              = BIT16(10),
+    OVS_BUFFER_FRAGMENT                 = BIT16(11),
+};
+
+typedef union _OVS_BUFFER_CONTEXT {
+    struct {
+        UINT16 magic;
+        UINT16 flags;
+        UINT32 srcPortNo;
+        UINT32 refCount;
+        union {
+            UINT32 origDataLength;
+            UINT32 dataOffsetDelta;
+        };
+    };
+
+    UINT64 value[MEM_ALIGN_SIZE(16) >> 3];
+} OVS_BUFFER_CONTEXT, *POVS_BUFFER_CONTEXT;
+
+
+typedef struct _OVS_NBL_POOL {
+    NDIS_SWITCH_CONTEXT ndisContext;
+    NDIS_HANDLE   ndisHandle;
+    NDIS_HANDLE   fixSizePool;   // data size of 256
+    NDIS_HANDLE   zeroSizePool;  // no data, NBL + NB + Context
+    NDIS_HANDLE   nblOnlyPool;   // NBL + context for clone
+    NDIS_HANDLE   nbPool;        // NB for clone
+#ifdef DBG
+    LONG          fixNBLCount;
+    LONG          zeroNBLCount;
+    LONG          nblOnlyCount;
+    LONG          nbCount;
+    LONG          sysNBLCount;
+    LONG          fragNBLCount;
+#endif
+} OVS_NBL_POOL, *POVS_NBL_POOL;
+
+
+NDIS_STATUS OvsInitBufferPool(PVOID context);
+VOID OvsCleanupBufferPool(PVOID context);
+
+PNET_BUFFER_LIST OvsAllocateFixSizeNBL(PVOID context,
+                                       UINT32 size,
+                                       UINT32 headRoom);
+PNET_BUFFER_LIST OvsAllocateVariableSizeNBL(PVOID context,
+                                            UINT32 size,
+                                            UINT32 headRoom);
+
+POVS_BUFFER_CONTEXT OvsInitExternalNBLContext(PVOID context,
+                                              PNET_BUFFER_LIST nbl,
+                                              BOOLEAN isRecv);
+
+PNET_BUFFER_LIST OvsPartialCopyNBL(PVOID context,
+                                   PNET_BUFFER_LIST nbl,
+                                   UINT32 copySize,
+                                   UINT32 headRoom,
+                                   BOOLEAN copyNblInfo);
+PNET_BUFFER_LIST OvsPartialCopyToMultipleNBLs(PVOID context,
+                                              PNET_BUFFER_LIST nbl,
+                                              UINT32 copySize,
+                                              UINT32 headRoom,
+                                              BOOLEAN copyNblInfo);
+PNET_BUFFER_LIST OvsFullCopyNBL(PVOID context, PNET_BUFFER_LIST nbl,
+                                UINT32 headRoom, BOOLEAN copyNblInfo);
+PNET_BUFFER_LIST OvsTcpSegmentNBL(PVOID context,
+                                  PNET_BUFFER_LIST nbl,
+                                  POVS_PACKET_HDR_INFO hdrInfo,
+                                  UINT32 MSS,
+                                  UINT32 headRoom);
+PNET_BUFFER_LIST OvsFullCopyToMultipleNBLs(PVOID context,
+    PNET_BUFFER_LIST nbl, UINT32 headRoom, BOOLEAN copyNblInfo);
+PNET_BUFFER_LIST OvsCompleteNBL(PVOID context, PNET_BUFFER_LIST nbl,
+                                BOOLEAN updateRef);
+NDIS_STATUS OvsSetCtxSourcePortNo(PNET_BUFFER_LIST nbl, UINT32 portNo);
+
+NDIS_STATUS OvsGetCtxSourcePortNo(PNET_BUFFER_LIST nbl, UINT32 *portNo);
+
+#endif /* __BUFFER_MGMT_H_ */