From 36ee91ca3661d3d020a7841aacbf858d885c4728 Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 20 Nov 2007 05:42:23 +0000
Subject: 1. Add DPC protocol and DpcLib library in MdeModulePkg. 2. Add DpcDxe
 module and DxeDpcLib module in MdeModulePkg 3. Port network stack module to
 use DPC. 4. Use MIN, and MAX defined in MdePkg to replace NET_MIN and
 NET_MAX.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4307 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c | 109 +++++++++++++++++++++++----
 1 file changed, 96 insertions(+), 13 deletions(-)

(limited to 'MdeModulePkg/Library/DxeIpIoLib')

diff --git a/MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c b/MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c
index 608bdd297e..279ada7b11 100644
--- a/MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c
+++ b/MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c
@@ -71,6 +71,13 @@ STATIC ICMP_ERROR_INFO  mIcmpErrMap[10] = {
   {FALSE, TRUE}
 };
 
+STATIC
+VOID
+EFIAPI
+IpIoTransmitHandlerDpc (
+  IN VOID      *Context
+  );
+
 STATIC
 VOID
 EFIAPI
@@ -430,7 +437,7 @@ IpIoCreateSndEntry (
     //
     // Set the fields of OverrideData
     //
-    NetCopyMem (OverrideData, Override, sizeof (*OverrideData));
+    CopyMem (OverrideData, Override, sizeof (*OverrideData));
   }
 
   //
@@ -523,7 +530,6 @@ IpIoDestroySndEntry (
 /**
   Notify function for IP transmit token.
 
-  @param  Event                 The event signaled.
   @param  Context               The context passed in by the event notifier.
 
   @return None.
@@ -532,8 +538,7 @@ IpIoDestroySndEntry (
 STATIC
 VOID
 EFIAPI
-IpIoTransmitHandler (
-  IN EFI_EVENT Event,
+IpIoTransmitHandlerDpc (
   IN VOID      *Context
   )
 {
@@ -556,11 +561,34 @@ IpIoTransmitHandler (
   IpIoDestroySndEntry (SndEntry);
 }
 
+/**
+  Notify function for IP transmit token.
+
+  @param  Event                 The event signaled.
+  @param  Context               The context passed in by the event notifier.
+
+  @return None.
+
+**/
+
+STATIC
+VOID
+EFIAPI
+IpIoTransmitHandler (
+  IN EFI_EVENT Event,
+  IN VOID      *Context
+  )
+{
+  //
+  // Request IpIoTransmitHandlerDpc as a DPC at TPL_CALLBACK
+  //
+  NetLibQueueDpc (TPL_CALLBACK, IpIoTransmitHandlerDpc, Context);
+}
+
 
 /**
   The dummy handler for the dummy IP receive token.
 
-  @param  Evt                   The event signaled.
   @param  Context               The context passed in by the event notifier.
 
   @return None.
@@ -569,20 +597,22 @@ IpIoTransmitHandler (
 STATIC
 VOID
 EFIAPI
-IpIoDummyHandler (
-  IN EFI_EVENT Event,
+IpIoDummyHandlerDpc (
   IN VOID      *Context
   )
 {
   IP_IO_IP_INFO             *IpInfo;
   EFI_IP4_COMPLETION_TOKEN  *DummyToken;
 
-  ASSERT (Event && Context);
-
   IpInfo      = (IP_IO_IP_INFO *) Context;
   DummyToken  = &(IpInfo->DummyRcvToken);
 
-  if (EFI_SUCCESS == DummyToken->Status) {
+  if (EFI_ABORTED == DummyToken->Status) {
+    //
+    // The reception is actively aborted by the consumer, directly return.
+    //
+    return;
+  } else if (EFI_SUCCESS == DummyToken->Status) {
     ASSERT (DummyToken->Packet.RxData);
 
     gBS->SignalEvent (DummyToken->Packet.RxData->RecycleSignal);
@@ -593,8 +623,7 @@ IpIoDummyHandler (
 
 
 /**
-  Notify function for the IP receive token, used to process
-  the received IP packets.
+  Request IpIoDummyHandlerDpc as a DPC at TPL_CALLBACK.
 
   @param  Event                 The event signaled.
   @param  Context               The context passed in by the event notifier.
@@ -605,10 +634,33 @@ IpIoDummyHandler (
 STATIC
 VOID
 EFIAPI
-IpIoListenHandler (
+IpIoDummyHandler (
   IN EFI_EVENT Event,
   IN VOID      *Context
   )
+{
+  //
+  // Request IpIoDummyHandlerDpc as a DPC at TPL_CALLBACK
+  //
+  NetLibQueueDpc (TPL_CALLBACK, IpIoDummyHandlerDpc, Context);
+}
+
+
+/**
+  Notify function for the IP receive token, used to process
+  the received IP packets.
+
+  @param  Context               The context passed in by the event notifier.
+
+  @return None.
+
+**/
+STATIC
+VOID
+EFIAPI
+IpIoListenHandlerDpc (
+  IN VOID      *Context
+  )
 {
   IP_IO                 *IpIo;
   EFI_STATUS            Status;
@@ -623,6 +675,13 @@ IpIoListenHandler (
   Status  = IpIo->RcvToken.Status;
   RxData  = IpIo->RcvToken.Packet.RxData;
 
+  if (EFI_ABORTED == Status) {
+    //
+    // The reception is actively aborted by the consumer, directly return.
+    //
+    return;
+  }
+
   if (((EFI_SUCCESS != Status) && (EFI_ICMP_ERROR != Status)) || (NULL == RxData)) {
     //
     // Only process the normal packets and the icmp error packets, if RxData is NULL
@@ -689,6 +748,30 @@ Resume:
 }
 
 
+/**
+  Request IpIoListenHandlerDpc as a DPC at TPL_CALLBACK
+
+  @param  Event                 The event signaled.
+  @param  Context               The context passed in by the event notifier.
+
+  @return None.
+
+**/
+STATIC
+VOID
+EFIAPI
+IpIoListenHandler (
+  IN EFI_EVENT Event,
+  IN VOID      *Context
+  )
+{
+  //
+  // Request IpIoListenHandlerDpc as a DPC at TPL_CALLBACK
+  //
+  NetLibQueueDpc (TPL_CALLBACK, IpIoListenHandlerDpc, Context);
+}
+
+
 /**
   Create a new IP_IO instance.
 
-- 
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