MdeModulePkg: update SNP.GetStatus to handle multiple recycled TX buffer.
This patch fixes a bug in SNP.GetStatus() interface. The UNDI driver may return multiple transmitted buffers in a single GetStatus command, while SNP.GetStatus could only return one pointer each time, the rest of them are lost. This patch fixes this issue by store these recycled pointer in a temporary buffer in SNP driver. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19623 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -1,7 +1,7 @@
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/** @file
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Implementation of driver entry point and driver binding protocol.
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Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed
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and made available under the terms and conditions of the BSD License which
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accompanies this distribution. The full text of the license may be found at
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@@ -403,6 +403,14 @@ SimpleNetworkDriverStart (
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Snp->TxRxBufferSize = 0;
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Snp->TxRxBuffer = NULL;
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Snp->RecycledTxBuf = AllocatePool (sizeof (UINT64) * SNP_TX_BUFFER_INCREASEMENT);
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if (Snp->RecycledTxBuf == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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goto Error_DeleteSNP;
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}
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Snp->MaxRecycledTxBuf = SNP_TX_BUFFER_INCREASEMENT;
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Snp->RecycledTxBufCount = 0;
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if (Nii->Revision >= EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_REVISION) {
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Snp->IfNum = Nii->IfNum;
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@@ -678,6 +686,10 @@ SimpleNetworkDriverStart (
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Error_DeleteSNP:
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if (Snp->RecycledTxBuf != NULL) {
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FreePool (Snp->RecycledTxBuf);
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}
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PciIo->FreeBuffer (
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PciIo,
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SNP_MEM_PAGES (sizeof (SNP_DRIVER)),
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@@ -790,6 +802,8 @@ SimpleNetworkDriverStop (
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PxeShutdown (Snp);
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PxeStop (Snp);
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FreePool (Snp->RecycledTxBuf);
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PciIo = Snp->PciIo;
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PciIo->FreeBuffer (
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PciIo,
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