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MdeModulePkg: Update MNP driver to recycle TX buffer asynchronously.

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This patch updates the MNP driver to recycle TX buffer asynchronously, instead 
of using a while loop wait after each transmit command.

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@19624 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Fu Siyuan
2016-01-08 02:38:34 +00:00
committed by sfu5
parent 7b4b93a247
commit 0507449955
5 changed files with 348 additions and 113 deletions
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54
MdeModulePkg/Universal/Network/MnpDxe/MnpImpl.h
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@@ -1,7 +1,7 @@
/** @file
Declaration of structures and functions of MnpDxe driver.
Copyright (c) 2005 - 2010, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 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
@@ -27,6 +27,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#define MNP_INIT_NET_BUFFER_NUM 512
#define MNP_NET_BUFFER_INCREASEMENT 64
#define MNP_MAX_NET_BUFFER_NUM 65536
#define MNP_TX_BUFFER_INCREASEMENT 64
#define MNP_MAX_TX_BUFFER_NUM 65536
#define MNP_MAX_RCVD_PACKET_QUE_SIZE 256
@@ -92,6 +94,15 @@ typedef struct {
UINT64 TimeoutTick;
} MNP_RXDATA_WRAP;
#define MNP_TX_BUF_WRAP_SIGNATURE SIGNATURE_32 ('M', 'T', 'B', 'W')
typedef struct {
UINT32 Signature;
LIST_ENTRY WrapEntry; // Link to FreeTxBufList
LIST_ENTRY AllEntry; // Link to AllTxBufList
BOOLEAN InUse;
UINT8 TxBuf[1];
} MNP_TX_BUF_WRAP;
/**
Initialize the mnp device context data.
@@ -342,8 +353,11 @@ MnpIsValidTxToken (
@param[out] PktLen Pointer to a UINT32 variable used to record the packet's
length.
@retval EFI_SUCCESS TxPackage is built.
@retval EFI_OUT_OF_RESOURCES The deliver fails due to lack of memory resource.
**/
VOID
EFI_STATUS
MnpBuildTxPacket (
IN MNP_SERVICE_DATA *MnpServiceData,
IN EFI_MANAGED_NETWORK_TRANSMIT_DATA *TxData,
@@ -352,7 +366,11 @@ MnpBuildTxPacket (
);
/**
Synchronously send out the packet.
Synchronously send out the packet.
This functon places the packet buffer to SNP driver's tansmit queue. The packet
can be considered successfully sent out once SNP acccetp the packet, while the
packet buffer recycle is deferred for better performance.
@param[in] MnpServiceData Pointer to the mnp service context data.
@param[in] Packet Pointer to the pakcet buffer.
@@ -448,6 +466,36 @@ MnpFreeNbuf (
IN OUT NET_BUF *Nbuf
);
/**
Allocate a free TX buffer from MnpDeviceData->FreeTxBufList. If there is none
in the queue, first try to recycle some from SNP, then try to allocate some and add
them into the queue, then fetch the NET_BUF from the updated FreeTxBufList.
@param[in, out] MnpDeviceData Pointer to the MNP_DEVICE_DATA.
@return Pointer to the allocated free NET_BUF structure, if NULL the
operation is failed.
**/
UINT8 *
MnpAllocTxBuf (
IN OUT MNP_DEVICE_DATA *MnpDeviceData
);
/**
Try to recycle all the transmitted buffer address from SNP.
@param[in, out] MnpDeviceData Pointer to the mnp device context data.
@retval EFI_SUCCESS Successed to recyclethe transmitted buffer address.
@retval Others Failed to recyclethe transmitted buffer address.
**/
EFI_STATUS
MnpRecycleTxBuf (
IN OUT MNP_DEVICE_DATA *MnpDeviceData
);
/**
Remove the received packets if timeout occurs.