NetworkPkg: Add PCD for HTTP transfer buffer sizeHEADmaster

Current HTTP transfer size have a default value of 2M.
This PCD change allows the platform code to change the transfer buffer size.
Based on the network bandwidth, the buffer size can be adjusted to improve performance.
Large buffer size provides better performance in high-bandwidth connections.
However, small buffer size helps to reduce packet loss in low-bandwidth scenarios.

Signed-off-by: Anbazhagan Baraneedharan <anbazhagan@hp.com>

6 files changed, 26 insertions, 5 deletions

diff --git a/NetworkPkg/HttpDxe/HttpDriver.h b/NetworkPkg/HttpDxe/HttpDriver.h
index e0917f431e..ddee0b7e0c 100644
--- a/NetworkPkg/HttpDxe/HttpDriver.h
+++ b/NetworkPkg/HttpDxe/HttpDriver.h
@@ -3,6 +3,7 @@
 

   Copyright (c) 2015 - 2021, Intel Corporation. All rights reserved.<BR>

   (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>

+  (c) Copyright 2025 HP Development Company, L.P.

 

   SPDX-License-Identifier: BSD-2-Clause-Patent

 

@@ -27,6 +28,7 @@
 #include <Library/HttpLib.h>

 #include <Library/DpcLib.h>

 #include <Library/PrintLib.h>

+#include <Library/PcdLib.h>

 

 //

 // UEFI Driver Model Protocols

diff --git a/NetworkPkg/HttpDxe/HttpDxe.inf b/NetworkPkg/HttpDxe/HttpDxe.inf
index 30b7de1951..865f11b252 100644
--- a/NetworkPkg/HttpDxe/HttpDxe.inf
+++ b/NetworkPkg/HttpDxe/HttpDxe.inf
@@ -2,6 +2,7 @@
 #  Implementation of EFI HTTP protocol interfaces.

 #

 #  Copyright (c) 2015 - 2021, Intel Corporation. All rights reserved.<BR>

+# (c) Copyright 2025 HP Development Company, L.P.

 #

 #  SPDX-License-Identifier: BSD-2-Clause-Patent

 #

@@ -48,6 +49,7 @@
   HttpLib

   DpcLib

   PrintLib

+  PcdLib

 

 [Protocols]

   gEfiHttpServiceBindingProtocolGuid               ## BY_START

@@ -78,6 +80,7 @@
   gEfiNetworkPkgTokenSpaceGuid.PcdHttpIoTimeout              ## CONSUMES

   gEfiNetworkPkgTokenSpaceGuid.PcdHttpDnsRetryInterval       ## CONSUMES

   gEfiNetworkPkgTokenSpaceGuid.PcdHttpDnsRetryCount          ## CONSUMES

+  gEfiNetworkPkgTokenSpaceGuid.PcdHttpTransferBufferSize     ## CONSUMES

 

 [UserExtensions.TianoCore."ExtraFiles"]

   HttpDxeExtra.uni

diff --git a/NetworkPkg/HttpDxe/HttpProto.c b/NetworkPkg/HttpDxe/HttpProto.c
index 1e53811ca7..312ba21789 100644
--- a/NetworkPkg/HttpDxe/HttpProto.c
+++ b/NetworkPkg/HttpDxe/HttpProto.c
@@ -4,6 +4,7 @@
 Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>

 (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>

 Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>

+(c) Copyright 2025 HP Development Company, L.P.

 SPDX-License-Identifier: BSD-2-Clause-Patent

 

 **/

@@ -1090,8 +1091,8 @@ HttpConfigureTcp4 (
   IP4_COPY_ADDRESS (&Tcp4AP->RemoteAddress, &HttpInstance->RemoteAddr);

 

   Tcp4Option                      = Tcp4CfgData->ControlOption;

-  Tcp4Option->ReceiveBufferSize   = HTTP_BUFFER_SIZE_DEAULT;

-  Tcp4Option->SendBufferSize      = HTTP_BUFFER_SIZE_DEAULT;

+  Tcp4Option->ReceiveBufferSize   = PcdGet32 (PcdHttpTransferBufferSize);

+  Tcp4Option->SendBufferSize      = PcdGet32 (PcdHttpTransferBufferSize);

   Tcp4Option->MaxSynBackLog       = HTTP_MAX_SYN_BACK_LOG;

   Tcp4Option->ConnectionTimeout   = HTTP_CONNECTION_TIMEOUT;

   Tcp4Option->DataRetries         = HTTP_DATA_RETRIES;

@@ -1174,8 +1175,8 @@ HttpConfigureTcp6 (
   IP6_COPY_ADDRESS (&Tcp6Ap->RemoteAddress, &HttpInstance->RemoteIpv6Addr);

 

   Tcp6Option                      = Tcp6CfgData->ControlOption;

-  Tcp6Option->ReceiveBufferSize   = HTTP_BUFFER_SIZE_DEAULT;

-  Tcp6Option->SendBufferSize      = HTTP_BUFFER_SIZE_DEAULT;

+  Tcp6Option->ReceiveBufferSize   = PcdGet32 (PcdHttpTransferBufferSize);

+  Tcp6Option->SendBufferSize      = PcdGet32 (PcdHttpTransferBufferSize);

   Tcp6Option->MaxSynBackLog       = HTTP_MAX_SYN_BACK_LOG;

   Tcp6Option->ConnectionTimeout   = HTTP_CONNECTION_TIMEOUT;

   Tcp6Option->DataRetries         = HTTP_DATA_RETRIES;

diff --git a/NetworkPkg/HttpDxe/HttpProto.h b/NetworkPkg/HttpDxe/HttpProto.h
index 953c464fe9..29828ac448 100644
--- a/NetworkPkg/HttpDxe/HttpProto.h
+++ b/NetworkPkg/HttpDxe/HttpProto.h
@@ -4,6 +4,7 @@
 Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>

 (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>

 Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>

+(c) Copyright 2025 HP Development Company, L.P.

 SPDX-License-Identifier: BSD-2-Clause-Patent

 

 **/

@@ -38,7 +39,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 //

 #define HTTP_TOS_DEAULT           8

 #define HTTP_TTL_DEAULT           255

-#define HTTP_BUFFER_SIZE_DEAULT   0x200000

 #define HTTP_MAX_SYN_BACK_LOG     5

 #define HTTP_CONNECTION_TIMEOUT   60

 #define HTTP_DATA_RETRIES         12

diff --git a/NetworkPkg/NetworkPkg.dec b/NetworkPkg/NetworkPkg.dec
index 5db7aa137a..2158dc3f8a 100644
--- a/NetworkPkg/NetworkPkg.dec
+++ b/NetworkPkg/NetworkPkg.dec
@@ -6,6 +6,7 @@
 # Copyright (c) 2009 - 2021, Intel Corporation. All rights reserved.<BR>

 # (C) Copyright 2015-2020 Hewlett Packard Enterprise Development LP<BR>

 # Copyright (c) Microsoft Corporation

+# (c) Copyright 2025 HP Development Company, L.P.

 #

 # SPDX-License-Identifier: BSD-2-Clause-Patent

 #

@@ -186,5 +187,11 @@
   # @Prompt The value of Retry Count,  Default value is 0.

   gEfiNetworkPkgTokenSpaceGuid.PcdHttpDnsRetryCount|0|UINT32|0x00000011

 

+  ## The default size of the HTTP transfer data buffer in bytes.

+  # This size is used for HTTP transfers, with a default value of 2MB.

+  # Increasing the buffer size can enhance performance for high-bandwidth connections.

+  # However, reducing the buffer size can reduce packet loss in low-bandwidth scenarios.

+  gEfiNetworkPkgTokenSpaceGuid.PcdHttpTransferBufferSize|0x200000|UINT32|0x00000014

+

 [UserExtensions.TianoCore."ExtraFiles"]

   NetworkPkgExtra.uni

diff --git a/NetworkPkg/NetworkPkg.uni b/NetworkPkg/NetworkPkg.uni
index c0bbbd3ee1..580449b4d5 100644
--- a/NetworkPkg/NetworkPkg.uni
+++ b/NetworkPkg/NetworkPkg.uni
@@ -4,6 +4,7 @@
 // This package provides network modules that conform to UEFI 2.4 specification.

 //

 // Copyright (c) 2009 - 2021, Intel Corporation. All rights reserved.<BR>

+// (c) Copyright 2025 HP Development Company, L.P.

 //

 // SPDX-License-Identifier: BSD-2-Clause-Patent

 //

@@ -122,3 +123,10 @@
 

 #string STR_gEfiNetworkPkgTokenSpaceGuid_PcdHttpDnsRetryCount_HELP  #language en-US "This value is used to configure the Retry Count of HTTP DNS if "

                                                                                 "no DNS response received after Retry Interval. The default value set is 0."

+

+#string STR_gEfiNetworkPkgTokenSpaceGuid_PcdHttpTransferBufferSize_PROMPT  #language en-US "HTTP default transfer buffer size"

+

+#string STR_gEfiNetworkPkgTokenSpaceGuid_PcdHttpTransferBufferSize_HELP  #language en-US "This value is used to configure the default transfer buffer size for HTTP."

+                                                                                     "The default value set is 2MB. Larger buffer sizes can improve performance "

+                                                                                     "for high-bandwidth connections. However, smaller buffer size can reduce packet loss "

+                                                                                     "in low-bandwidth scenarios."