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Get MaxPacketSize from IP4 mode data and reduce the head size of UDP and MTFTP, and take it as BlockSize to download.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9894 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ljin6
2010-02-01 03:32:28 +00:00
parent 9f7d5b46aa
commit fa6d3ee491
4 changed files with 29 additions and 11 deletions
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15
MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c
View File

@@ -347,6 +347,11 @@ EfiPxeBcStart (
return Status;
}
//
// Configure block size for TFTP as a default value to handle all link layers.
//
Private->BlockSize = (UINTN) (MIN (Private->Ip4MaxPacketSize, PXEBC_DEFAULT_PACKET_SIZE) -
PXEBC_DEFAULT_UDP_OVERHEAD_SIZE - PXEBC_DEFAULT_TFTP_OVERHEAD_SIZE);
Private->AddressIsOk = FALSE;
ZeroMem (Mode, sizeof (EFI_PXE_BASE_CODE_MODE));
@@ -2421,7 +2426,6 @@ DiscoverBootFile (
UINT16 Type;
UINT16 Layer;
BOOLEAN UseBis;
UINTN BlockSize;
PXEBC_CACHED_DHCP4_PACKET *Packet;
UINT16 Value;
@@ -2466,7 +2470,6 @@ DiscoverBootFile (
}
*BufferSize = 0;
BlockSize = 0x8000;
//
// Get bootfile name and (m)tftp server ip addresss
@@ -2526,7 +2529,7 @@ DiscoverBootFile (
Buffer,
FALSE,
BufferSize,
&BlockSize,
&Private->BlockSize,
&Private->ServerIp,
(UINT8 *) Private->BootFileName,
NULL,
@@ -2580,14 +2583,12 @@ EfiPxeLoadFile (
PXEBC_PRIVATE_DATA *Private;
EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;
BOOLEAN NewMakeCallback;
UINTN BlockSize;
EFI_STATUS Status;
UINT64 TmpBufSize;
Private = PXEBC_PRIVATE_DATA_FROM_LOADFILE (This);
PxeBc = &Private->PxeBc;
NewMakeCallback = FALSE;
BlockSize = 0x8000;
Status = EFI_DEVICE_ERROR;
if (This == NULL || BufferSize == NULL) {
@@ -2646,7 +2647,7 @@ EfiPxeLoadFile (
Buffer,
FALSE,
&TmpBufSize,
&BlockSize,
&Private->BlockSize,
&Private->ServerIp,
(UINT8 *) Private->BootFileName,
NULL,
@@ -2670,7 +2671,7 @@ EfiPxeLoadFile (
Buffer,
FALSE,
&TmpBufSize,
&BlockSize,
&Private->BlockSize,
&Private->ServerIp,
(UINT8 *) Private->BootFileName,
NULL,