diff options
Diffstat (limited to 'EdkModulePkg/Universal/Network/Snp32_64/Dxe/receive.c')
| -rw-r--r-- | EdkModulePkg/Universal/Network/Snp32_64/Dxe/receive.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/EdkModulePkg/Universal/Network/Snp32_64/Dxe/receive.c b/EdkModulePkg/Universal/Network/Snp32_64/Dxe/receive.c deleted file mode 100644 index 7c9cf5e084..0000000000 --- a/EdkModulePkg/Universal/Network/Snp32_64/Dxe/receive.c +++ /dev/null @@ -1,256 +0,0 @@ -/*++
-Copyright (c) 2006, Intel Corporation
-All rights reserved. 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
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module name:
- receive.c
-
-Abstract:
-
-Revision history:
- 2000-Feb-03 M(f)J Genesis.
---*/
-
-
-#include "Snp.h"
-
-STATIC
-EFI_STATUS
-pxe_receive (
- SNP_DRIVER *snp,
- VOID *BufferPtr,
- UINTN *BuffSizePtr,
- UINTN *HeaderSizePtr,
- EFI_MAC_ADDRESS *SourceAddrPtr,
- EFI_MAC_ADDRESS *DestinationAddrPtr,
- UINT16 *ProtocolPtr
- )
-/*++
-
-Routine Description:
- this routine calls undi to receive a packet and fills in the data in the
- input pointers!
-
-Arguments:
- snp - pointer to snp driver structure
- BufferPtr - pointer to the memory for the received data
- BuffSizePtr - is a pointer to the length of the buffer on entry and contains
- the length of the received data on return
- HeaderSizePtr - pointer to the header portion of the data received.
- SourceAddrPtr - optional parameter, is a pointer to contain the source
- ethernet address on return
- DestinationAddrPtr - optional parameter, is a pointer to contain the destination
- ethernet address on return
- ProtocolPtr - optional parameter, is a pointer to contain the protocol type
- from the ethernet header on return
-
-
-Returns:
-
---*/
-{
- PXE_CPB_RECEIVE *cpb;
- PXE_DB_RECEIVE *db;
- UINTN buf_size;
- UINT64 TempData;
-
- cpb = snp->cpb;
- db = snp->db;
- buf_size = *BuffSizePtr;
- //
- // IMPORTANT NOTE:
- // In case of the older 3.0 UNDI, if the input buffer address is beyond 4GB,
- // DO NOT call the map function on the given buffer, instead use
- // a global buffer. The reason is that UNDI3.0 has some unnecessary check of
- // making sure that all the addresses (whether or not they will be given
- // to the NIC ) supplied to it are below 4GB. It may or may not use
- // the mapped address after all (like in case of CPB and DB)!
- // Instead of using the global buffer whose address is allocated within the
- // 2GB limit if I start mapping the given buffer we lose the data, here is
- // why!!!
- // if our address is > 4GB, the map call creates another buffer below 2GB and
- // copies data to/from the original buffer to the mapped buffer either at
- // map time or unmap time depending on the map direction.
- // UNDI will not complain since we already mapped the buffer to be
- // within the 2GB limit but will not use (I know undi) the mapped address
- // since it does not give the user buffers to the NIC's receive unit,
- // It just copies the received packet into the user buffer using the virtual
- // (CPU) address rather than the mapped (device or physical) address.
- // When the UNDI call returns, if we then unmap the buffer, we will lose
- // the contents because unmap copies the contents of the mapped buffer into
- // the original buffer (since the direction is FROM_DEVICE) !!!
- //
- // this is not a problem in Undi 3.1 because this undi uses it's map callback
- // routine to map a cpu address to device address and it does it only if
- // it is giving the address to the device and unmaps it before using the cpu
- // address!
- //
- TempData = (UINT64) (UINTN) BufferPtr;
- if (snp->IsOldUndi && (TempData >= FOUR_GIGABYTES)) {
- cpb->BufferAddr = (UINT64) (UINTN) snp->receive_buf;
- cpb->BufferLen = (UINT32) (snp->init_info.MediaHeaderLen + snp->init_info.FrameDataLen);
- } else {
- cpb->BufferAddr = (UINT64) (UINTN) BufferPtr;
- cpb->BufferLen = (UINT32) *BuffSizePtr;
- }
-
- cpb->reserved = 0;
-
- snp->cdb.OpCode = PXE_OPCODE_RECEIVE;
- snp->cdb.OpFlags = PXE_OPFLAGS_NOT_USED;
-
- snp->cdb.CPBsize = sizeof (PXE_CPB_RECEIVE);
- snp->cdb.CPBaddr = (UINT64) (UINTN) cpb;
-
- snp->cdb.DBsize = sizeof (PXE_DB_RECEIVE);
- snp->cdb.DBaddr = (UINT64) (UINTN) db;
-
- snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;
- snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
- snp->cdb.IFnum = snp->if_num;
- snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
-
- //
- // Issue UNDI command and check result.
- //
- DEBUG ((EFI_D_INFO, "\nsnp->undi.receive () "));
-
- (*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);
-
- switch (snp->cdb.StatCode) {
- case PXE_STATCODE_SUCCESS:
- break;
-
- case PXE_STATCODE_NO_DATA:
- DEBUG (
- (EFI_D_INFO,
- "\nsnp->undi.receive () %xh:%xh\n",
- snp->cdb.StatFlags,
- snp->cdb.StatCode)
- );
-
- return EFI_NOT_READY;
-
- default:
- DEBUG (
- (EFI_D_ERROR,
- "\nsnp->undi.receive() %xh:%xh\n",
- snp->cdb.StatFlags,
- snp->cdb.StatCode)
- );
-
- return EFI_DEVICE_ERROR;
- }
-
- *BuffSizePtr = db->FrameLen;
-
- if (HeaderSizePtr != NULL) {
- *HeaderSizePtr = db->MediaHeaderLen;
- }
-
- if (SourceAddrPtr != NULL) {
- CopyMem (SourceAddrPtr, &db->SrcAddr, snp->mode.HwAddressSize);
- }
-
- if (DestinationAddrPtr != NULL) {
- CopyMem (DestinationAddrPtr, &db->DestAddr, snp->mode.HwAddressSize);
- }
-
- if (ProtocolPtr != NULL) {
- *ProtocolPtr = (UINT16) PXE_SWAP_UINT16 (db->Protocol); /* we need to do the byte swapping */
- }
-
- TempData = (UINT64) (UINTN) BufferPtr;
- if (snp->IsOldUndi && (TempData >= FOUR_GIGABYTES)) {
- CopyMem (BufferPtr, snp->receive_buf, snp->init_info.MediaHeaderLen + snp->init_info.FrameDataLen);
- }
-
- return (*BuffSizePtr <= buf_size) ? EFI_SUCCESS : EFI_BUFFER_TOO_SMALL;
-}
-
-EFI_STATUS
-EFIAPI
-snp_undi32_receive (
- IN EFI_SIMPLE_NETWORK_PROTOCOL * this,
- OUT UINTN *HeaderSizePtr OPTIONAL,
- IN OUT UINTN *BuffSizePtr,
- OUT VOID *BufferPtr,
- OUT EFI_MAC_ADDRESS * SourceAddrPtr OPTIONAL,
- OUT EFI_MAC_ADDRESS * DestinationAddrPtr OPTIONAL,
- OUT UINT16 *ProtocolPtr OPTIONAL
- )
-/*++
-
-Routine Description:
- This is the SNP interface routine for receiving network data.
- This routine basically retrieves snp structure, checks the SNP state and
- calls the pxe_receive routine to actually do the receive!
-
-Arguments:
- this - context pointer
- HeaderSizePtr - optional parameter and is a pointer to the header portion of
- the data received.
- BuffSizePtr - is a pointer to the length of the buffer on entry and contains
- the length of the received data on return
- BufferPtr - pointer to the memory for the received data
- SourceAddrPtr - optional parameter, is a pointer to contain the source
- ethernet address on return
- DestinationAddrPtr - optional parameter, is a pointer to contain the destination
- ethernet address on return
- ProtocolPtr - optional parameter, is a pointer to contain the protocol type
- from the ethernet header on return
-
-Returns:
-
---*/
-{
- SNP_DRIVER *snp;
-
- if (this == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);
-
- if (snp == NULL) {
- return EFI_DEVICE_ERROR;
- }
-
- switch (snp->mode.State) {
- case EfiSimpleNetworkInitialized:
- break;
-
- case EfiSimpleNetworkStopped:
- return EFI_NOT_STARTED;
-
- case EfiSimpleNetworkStarted:
- return EFI_DEVICE_ERROR;
-
- default:
- return EFI_DEVICE_ERROR;
- }
-
- if ((BuffSizePtr == NULL) || (BufferPtr == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (!snp->mode.ReceiveFilterSetting) {
- return EFI_DEVICE_ERROR;
- }
-
- return pxe_receive (
- snp,
- BufferPtr,
- BuffSizePtr,
- HeaderSizePtr,
- SourceAddrPtr,
- DestinationAddrPtr,
- ProtocolPtr
- );
-}
|