diff options
Diffstat (limited to 'Nt32Pkg/SnpNt32Dxe/SnpNt32.c')
| -rw-r--r-- | Nt32Pkg/SnpNt32Dxe/SnpNt32.c | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/Nt32Pkg/SnpNt32Dxe/SnpNt32.c b/Nt32Pkg/SnpNt32Dxe/SnpNt32.c index 4dee182ad8..901880023b 100644 --- a/Nt32Pkg/SnpNt32Dxe/SnpNt32.c +++ b/Nt32Pkg/SnpNt32Dxe/SnpNt32.c @@ -1,6 +1,6 @@ /** @file
-Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -44,6 +44,9 @@ SNPNT32_GLOBAL_DATA gSnpNt32GlobalData = { 0,
EfiLockUninitialized
}, // Lock
+ NULL, // RecycledTxBuf
+ 0, // RecycledTxBufCount
+ 32, // MaxRecycledTxBuf
//
// Private functions
//
@@ -861,9 +864,20 @@ SnpNt32GetStatus ( OUT VOID **TxBuffer
)
{
+ SNPNT32_INSTANCE_DATA *Instance;
+ SNPNT32_GLOBAL_DATA *GlobalData;
+
+ Instance = SNP_NT32_INSTANCE_DATA_FROM_SNP_THIS (This);
+
+ GlobalData = Instance->GlobalData;
if (TxBuffer != NULL) {
- *((UINT8 **) TxBuffer) = (UINT8 *)(UINTN) 1;
+ if (GlobalData->RecycledTxBufCount != 0) {
+ GlobalData->RecycledTxBufCount --;
+ *((UINT8 **) TxBuffer) = (UINT8 *) (UINTN)GlobalData->RecycledTxBuf[GlobalData->RecycledTxBufCount];
+ } else {
+ *((UINT8 **) TxBuffer) = NULL;
+ }
}
if (InterruptStatus != NULL) {
@@ -918,6 +932,7 @@ SnpNt32Transmit ( SNPNT32_INSTANCE_DATA *Instance;
SNPNT32_GLOBAL_DATA *GlobalData;
INT32 ReturnValue;
+ UINT64 *Tmp;
Instance = SNP_NT32_INSTANCE_DATA_FROM_SNP_THIS (This);
@@ -945,6 +960,24 @@ SnpNt32Transmit ( if (ReturnValue < 0) {
return EFI_DEVICE_ERROR;
+ } else {
+ if ((GlobalData->MaxRecycledTxBuf + SNP_TX_BUFFER_INCREASEMENT) >= SNP_MAX_TX_BUFFER_NUM) {
+ return EFI_NOT_READY;
+ }
+
+ if (GlobalData->RecycledTxBufCount < GlobalData->MaxRecycledTxBuf) {
+ GlobalData->RecycledTxBuf[GlobalData->RecycledTxBufCount] = (UINT64) Buffer;
+ GlobalData->RecycledTxBufCount ++;
+ } else {
+ Tmp = AllocatePool (sizeof (UINT64) * (GlobalData->MaxRecycledTxBuf + SNP_TX_BUFFER_INCREASEMENT));
+ if (Tmp == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+ CopyMem (Tmp, GlobalData->RecycledTxBuf, sizeof (UINT64) * GlobalData->RecycledTxBufCount);
+ FreePool (GlobalData->RecycledTxBuf);
+ GlobalData->RecycledTxBuf = Tmp;
+ GlobalData->MaxRecycledTxBuf += SNP_TX_BUFFER_INCREASEMENT;
+ }
}
return EFI_SUCCESS;
@@ -1083,6 +1116,11 @@ SnpNt32InitializeGlobalData ( InitializeListHead (&This->InstanceList);
EfiInitializeLock (&This->Lock, TPL_CALLBACK);
+ This->RecycledTxBuf = AllocatePool (sizeof (UINT64) * This->MaxRecycledTxBuf);
+ if (This->RecycledTxBuf == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
//
// Get the WinNT thunk
//
|