BaseTools: Remove the old python "not-equal"

[mirror_edk2.git] / Nt32Pkg / SnpNt32Dxe / SnpNt32.c

diff --git a/Nt32Pkg/SnpNt32Dxe/SnpNt32.c b/Nt32Pkg/SnpNt32Dxe/SnpNt32.c
index 4dee182ad839db051532ea6d4c27d1c7a65fcff0..c1ef32430a28f76a31087b1168cb412659256608 100644 (file)
--- a/Nt32Pkg/SnpNt32Dxe/SnpNt32.c
+++ b/Nt32Pkg/SnpNt32Dxe/SnpNt32.c
@@ -1,6 +1,6 @@
 /** @file\r
 \r
-Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -393,6 +393,9 @@ SNPNT32_INSTANCE_DATA gSnpNt32InstanceTemplate = {
     NULL,\r
     NULL\r
   },                                      //  Entry\r
+  NULL,                                   //  RecycledTxBuf\r
+  0,                                      //  RecycledTxBufCount\r
+  32,                                     //  MaxRecycledTxBuf\r
   NULL,                                   //  GlobalData\r
   NULL,                                   //  DeviceHandle\r
   NULL,                                   //  DevicePath\r
@@ -861,9 +864,17 @@ SnpNt32GetStatus (
   OUT VOID                       **TxBuffer\r
   )\r
 {\r
+  SNPNT32_INSTANCE_DATA *Instance;\r
+\r
+  Instance    = SNP_NT32_INSTANCE_DATA_FROM_SNP_THIS (This);\r
 \r
   if (TxBuffer != NULL) {\r
-    *((UINT8 **) TxBuffer) = (UINT8 *)(UINTN) 1;\r
+    if (Instance->RecycledTxBufCount != 0) {\r
+      Instance->RecycledTxBufCount --;\r
+      *((UINT8 **) TxBuffer)    = (UINT8 *) (UINTN)Instance->RecycledTxBuf[Instance->RecycledTxBufCount];\r
+    } else {\r
+      *((UINT8 **) TxBuffer)    = NULL;\r
+    }\r
   }\r
 \r
   if (InterruptStatus != NULL) {\r
@@ -918,6 +929,7 @@ SnpNt32Transmit (
   SNPNT32_INSTANCE_DATA *Instance;\r
   SNPNT32_GLOBAL_DATA   *GlobalData;\r
   INT32                 ReturnValue;\r
+  UINT64                *Tmp;\r
 \r
   Instance    = SNP_NT32_INSTANCE_DATA_FROM_SNP_THIS (This);\r
 \r
@@ -945,6 +957,24 @@ SnpNt32Transmit (
 \r
   if (ReturnValue < 0) {\r
     return EFI_DEVICE_ERROR;\r
+  } else {\r
+    if ((Instance->MaxRecycledTxBuf + SNP_TX_BUFFER_INCREASEMENT) >= SNP_MAX_TX_BUFFER_NUM) {\r
+      return EFI_NOT_READY;\r
+    }\r
+\r
+    if (Instance->RecycledTxBufCount < Instance->MaxRecycledTxBuf) {\r
+      Instance->RecycledTxBuf[Instance->RecycledTxBufCount] = (UINT64) Buffer;\r
+      Instance->RecycledTxBufCount ++;\r
+    } else {\r
+      Tmp = AllocatePool (sizeof (UINT64) * (Instance->MaxRecycledTxBuf + SNP_TX_BUFFER_INCREASEMENT));\r
+      if (Tmp == NULL) {\r
+        return EFI_DEVICE_ERROR;\r
+      }\r
+      CopyMem (Tmp, Instance->RecycledTxBuf, sizeof (UINT64) * Instance->RecycledTxBufCount);\r
+      FreePool (Instance->RecycledTxBuf);\r
+      Instance->RecycledTxBuf    =  Tmp;\r
+      Instance->MaxRecycledTxBuf += SNP_TX_BUFFER_INCREASEMENT;\r
+    }\r
   }\r
 \r
   return EFI_SUCCESS;\r
@@ -1175,7 +1205,7 @@ SnpNt32InitializeGlobalData (
   //\r
   for (Index = 0; Index < InterfaceCount; Index++) {\r
 \r
-    Instance = AllocatePool (sizeof (SNPNT32_INSTANCE_DATA));\r
+    Instance = AllocateZeroPool (sizeof (SNPNT32_INSTANCE_DATA));\r
 \r
     if (NULL == Instance) {\r
       Status = EFI_OUT_OF_RESOURCES;\r
@@ -1186,6 +1216,14 @@ SnpNt32InitializeGlobalData (
     //\r
     CopyMem (Instance, &gSnpNt32InstanceTemplate, sizeof (SNPNT32_INSTANCE_DATA));\r
 \r
+    //\r
+    // Allocate the RecycledTxBuf.\r
+    //\r
+    Instance->RecycledTxBuf = AllocatePool (sizeof (UINT64) * Instance->MaxRecycledTxBuf);\r
+    if (Instance->RecycledTxBuf == NULL) {\r
+      return EFI_OUT_OF_RESOURCES;\r
+    }\r
+\r
     //\r
     //  Set the interface information.\r
     //\r