[cgutman] 40270: - Implement NdisMAllocateSharedMemoryAsync - Zero the entire packet in NdisAllocatePacket

Author: cgutman
Date: Sat Mar 28 20:49:27 2009
New Revision: 40270

URL: http://svn.reactos.org/svn/reactos?rev=40270&view=rev
Log:
 - Implement NdisMAllocateSharedMemoryAsync
 - Zero the entire packet in NdisAllocatePacket

Modified:
    trunk/reactos/drivers/network/ndis/include/miniport.h
    trunk/reactos/drivers/network/ndis/ndis/50stubs.c
    trunk/reactos/drivers/network/ndis/ndis/buffer.c
    trunk/reactos/drivers/network/ndis/ndis/memory.c

Modified: trunk/reactos/drivers/network/ndis/include/miniport.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/ndis/includ...
==============================================================================
--- trunk/reactos/drivers/network/ndis/include/miniport.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/ndis/include/miniport.h [iso-8859-1] Sat Mar 28 20:49:27 2009
@@ -58,11 +58,13 @@

/* a miniport's shared memory */
 typedef struct _MINIPORT_SHARED_MEMORY {
-    PDMA_ADAPTER      AdapterObject;
-    ULONG             Length;
-    PHYSICAL_ADDRESS  PhysicalAddress;
-    PVOID             VirtualAddress;
-    BOOLEAN           Cached;
+    PDMA_ADAPTER          AdapterObject;
+    ULONG                 Length;
+    PHYSICAL_ADDRESS      PhysicalAddress;
+    PVOID                 VirtualAddress;
+    BOOLEAN               Cached;
+    PNDIS_MINIPORT_BLOCK  Adapter;
+    PVOID                 Context;
 } MINIPORT_SHARED_MEMORY, *PMINIPORT_SHARED_MEMORY;

/* A structure of WrapperConfigurationContext (not compatible with the

Modified: trunk/reactos/drivers/network/ndis/ndis/50stubs.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/ndis/ndis/5...
==============================================================================
--- trunk/reactos/drivers/network/ndis/ndis/50stubs.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/ndis/ndis/50stubs.c [iso-8859-1] Sat Mar 28 20:49:27 2009
@@ -661,23 +661,6 @@
    UNIMPLEMENTED
 }

-
-/*
- * @unimplemented
- */
-NDIS_STATUS
-EXPORT
-NdisMAllocateSharedMemoryAsync(
-    IN  NDIS_HANDLE MiniportAdapterHandle,
-    IN  ULONG       Length,
-    IN  BOOLEAN     Cached,
-    IN  PVOID       Context)
-{
-  UNIMPLEMENTED
-
-  return NDIS_STATUS_FAILURE;
-}
-
 /*
  * @unimplemented
  */
@@ -701,6 +684,8 @@
  *     Length           = Number of bytes to copy
  */
 {
+    UNIMPLEMENTED
+
     *Status = NDIS_STATUS_FAILURE;
 }

Modified: trunk/reactos/drivers/network/ndis/ndis/buffer.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/ndis/ndis/b...
==============================================================================
--- trunk/reactos/drivers/network/ndis/ndis/buffer.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/ndis/ndis/buffer.c [iso-8859-1] Sat Mar 28 20:49:27 2009
@@ -424,7 +424,7 @@

KeReleaseSpinLock(&Pool->SpinLock.SpinLock, OldIrql);

-        RtlZeroMemory(&Temp->Private, sizeof(NDIS_PACKET_PRIVATE));
+        RtlZeroMemory(Temp, sizeof(NDIS_PACKET));
         Temp->Private.Pool = Pool;

*Packet = Temp;

Modified: trunk/reactos/drivers/network/ndis/ndis/memory.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/ndis/ndis/m...
==============================================================================
--- trunk/reactos/drivers/network/ndis/ndis/memory.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/ndis/ndis/memory.c [iso-8859-1] Sat Mar 28 20:49:27 2009
@@ -245,6 +245,74 @@
   ZwClose(ThreadHandle);
 }

+VOID
+NTAPI
+NdisMAllocateSharedMemoryPassive(
+    PVOID Context)
+/*
+ * FUNCTION:  Allocate a common buffer
+ * ARGUMENTS:
+ *     Context:  Pointer to a miniport shared memory context
+ * NOTES:
+ *     - Called by NdisMAllocateSharedMemoryAsync to do the actual work
+ */
+{
+  PMINIPORT_SHARED_MEMORY Memory = (PMINIPORT_SHARED_MEMORY)Context;
+
+  NDIS_DbgPrint(MAX_TRACE, ("Called.\n"));
+
+  ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
+
+  Memory->VirtualAddress = Memory->AdapterObject->DmaOperations->AllocateCommonBuffer(
+      Memory->AdapterObject, Memory->Length, &Memory->PhysicalAddress, Memory->Cached);
+
+  if (Memory->Adapter->DriverHandle->MiniportCharacteristics.AllocateCompleteHandler)
+      Memory->Adapter->DriverHandle->MiniportCharacteristics.AllocateCompleteHandler(
+             Memory->Adapter, Memory->VirtualAddress, &Memory->PhysicalAddress, Memory->Length, Memory->Context);
+
+  ExFreePool(Memory);
+}
+
+
+/*
+ * @implemented
+ */
+NDIS_STATUS
+EXPORT
+NdisMAllocateSharedMemoryAsync(
+    IN  NDIS_HANDLE MiniportAdapterHandle,
+    IN  ULONG       Length,
+    IN  BOOLEAN     Cached,
+    IN  PVOID       Context)
+{
+  HANDLE ThreadHandle;
+  PLOGICAL_ADAPTER Adapter = (PLOGICAL_ADAPTER)MiniportAdapterHandle;
+  PMINIPORT_SHARED_MEMORY Memory;
+
+  NDIS_DbgPrint(MAX_TRACE,("Called.\n"));
+
+  ASSERT(KeGetCurrentIrql() <= DISPATCH_LEVEL);
+
+  /* Must be NonpagedPool because by definition we're at DISPATCH_LEVEL */
+  Memory = ExAllocatePool(NonPagedPool, sizeof(MINIPORT_SHARED_MEMORY));
+
+  if(!Memory)
+    {
+      NDIS_DbgPrint(MID_TRACE, ("Insufficient resources\n"));
+      return NDIS_STATUS_FAILURE;
+    }
+
+  Memory->AdapterObject = Adapter->NdisMiniportBlock.SystemAdapterObject;
+  Memory->Length = Length;
+  Memory->Cached = Cached;
+  Memory->Adapter = &Adapter->NdisMiniportBlock;
+  Memory->Context = Context;
+
+  PsCreateSystemThread(&ThreadHandle, THREAD_ALL_ACCESS, 0, 0, 0, NdisMAllocateSharedMemoryPassive, Memory);
+  ZwClose(ThreadHandle);
+
+  return NDIS_STATUS_PENDING;
+}

/*
  * @implemented