/**
Call UNDI to initialize the interface.
@param Snp Pointer to snp driver structure.
@param CableDetectFlag Do/don't detect the cable (depending on what
undi supports).
@retval EFI_SUCCESS UNDI is initialized successfully.
@retval EFI_DEVICE_ERROR UNDI could not be initialized.
@retval Other Other errors as indicated.
**/
EFI_STATUS
PxeInit (
SNP_DRIVER *Snp,
UINT16 CableDetectFlag
)
{
PXE_CPB_INITIALIZE *Cpb;
VOID *Addr;
EFI_STATUS Status;
Cpb = Snp->Cpb;
if (Snp->TxRxBufferSize != 0) {
Status = Snp->PciIo->AllocateBuffer (
Snp->PciIo,
AllocateAnyPages,
EfiBootServicesData,
SNP_MEM_PAGES (Snp->TxRxBufferSize),
&Addr,
0
);
if (Status != EFI_SUCCESS) {
DEBUG (
(EFI_D_ERROR,
"\nSnp->PxeInit() AllocateBuffer %xh (%r)\n",
Status,
Status)
);
return Status;
}
ASSERT (Addr);
Snp->TxRxBuffer = Addr;
}
Cpb->MemoryAddr = (UINT64)(UINTN) Snp->TxRxBuffer;
Cpb->MemoryLength = Snp->TxRxBufferSize;
//
// let UNDI decide/detect these values
//
Cpb->LinkSpeed = 0;
Cpb->TxBufCnt = 0;
Cpb->TxBufSize = 0;
Cpb->RxBufCnt = 0;
Cpb->RxBufSize = 0;
Cpb->DuplexMode = PXE_DUPLEX_DEFAULT;
Cpb->LoopBackMode = LOOPBACK_NORMAL;
Snp->Cdb.OpCode = PXE_OPCODE_INITIALIZE;
Snp->Cdb.OpFlags = CableDetectFlag;
Snp->Cdb.CPBsize = (UINT16) sizeof (PXE_CPB_INITIALIZE);
Snp->Cdb.DBsize = (UINT16) sizeof (PXE_DB_INITIALIZE);
Snp->Cdb.CPBaddr = (UINT64)(UINTN) Snp->Cpb;
Snp->Cdb.DBaddr = (UINT64)(UINTN) Snp->Db;
Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;
Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
Snp->Cdb.IFnum = Snp->IfNum;
Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
DEBUG ((EFI_D_NET, "\nSnp->undi.initialize() "));
(*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);
if (Snp->Cdb.StatCode == PXE_STATCODE_SUCCESS) {
Snp->Mode.State = EfiSimpleNetworkInitialized;
Status = EFI_SUCCESS;
} else {
DEBUG (
(EFI_D_WARN,
"\nSnp->undi.initialize() %xh:%xh\n",
Snp->Cdb.StatFlags,
Snp->Cdb.StatCode)
);
if (Snp->TxRxBuffer != NULL) {
Snp->PciIo->FreeBuffer (
Snp->PciIo,
SNP_MEM_PAGES (Snp->TxRxBufferSize),
(VOID *) Snp->TxRxBuffer
);
}
Snp->TxRxBuffer = NULL;
Status = EFI_DEVICE_ERROR;
}
return Status;
}
/**
Stop this driver on ControllerHandle. This service is called by the
EFI boot service DisconnectController(). In order to
make drivers as small as possible, there are a few calling
restrictions for this service. DisconnectController()
must follow these calling restrictions. If any other agent wishes
to call Stop() it must also follow these calling restrictions.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
SimpleNetworkDriverStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_SIMPLE_NETWORK_PROTOCOL *SnpProtocol;
SNP_DRIVER *Snp;
//
// Get our context back.
//
Status = gBS->OpenProtocol (
Controller,
&gEfiSimpleNetworkProtocolGuid,
(VOID **) &SnpProtocol,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (SnpProtocol);
Status = gBS->UninstallProtocolInterface (
Controller,
&gEfiSimpleNetworkProtocolGuid,
&Snp->Snp
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Close EXIT_BOOT_SERIVES Event
//
gBS->CloseEvent (Snp->ExitBootServicesEvent);
Status = gBS->CloseProtocol (
Controller,
&gEfiNetworkInterfaceIdentifierProtocolGuid_31,
This->DriverBindingHandle,
Controller
);
Status = gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
PxeShutdown (Snp);
PxeStop (Snp);
mPciIo->FreeBuffer (
mPciIo,
SNP_MEM_PAGES (4096),
Snp->Cpb
);
mPciIo->FreeBuffer (
mPciIo,
SNP_MEM_PAGES (sizeof (SNP_DRIVER)),
Snp
);
return Status;
}
/**
Call UNDI to initialize the interface.
@param Snp Pointer to snp driver structure.
@param CableDetectFlag Do/don't detect the cable (depending on what
undi supports).
@retval EFI_SUCCESS UNDI is initialized successfully.
@retval EFI_DEVICE_ERROR UNDI could not be initialized.
@retval Other Other errors as indicated.
**/
EFI_STATUS
PxeInit (
SNP_DRIVER *Snp,
UINT16 CableDetectFlag
)
{
PXE_CPB_INITIALIZE *Cpb;
VOID *Addr;
EFI_STATUS Status;
Status = EFI_SUCCESS;
Cpb = Snp->Cpb;
if (Snp->TxRxBufferSize != 0) {
Status = Snp->PciIo->AllocateBuffer (
Snp->PciIo,
AllocateAnyPages,
EfiBootServicesData,
SNP_MEM_PAGES (Snp->TxRxBufferSize),
&Addr,
0
);
if (Status != EFI_SUCCESS) {
DEBUG (
(EFI_D_ERROR,
"\nSnp->PxeInit() AllocateBuffer %xh (%r)\n",
Status,
Status)
);
return Status;
}
ASSERT (Addr);
Snp->TxRxBuffer = Addr;
}
Cpb->MemoryAddr = (UINT64)(UINTN) Snp->TxRxBuffer;
Cpb->MemoryLength = Snp->TxRxBufferSize;
//
// let UNDI decide/detect these values
//
Cpb->LinkSpeed = 0;
Cpb->TxBufCnt = 0;
Cpb->TxBufSize = 0;
Cpb->RxBufCnt = 0;
Cpb->RxBufSize = 0;
Cpb->DuplexMode = PXE_DUPLEX_DEFAULT;
Cpb->LoopBackMode = LOOPBACK_NORMAL;
Snp->Cdb.OpCode = PXE_OPCODE_INITIALIZE;
Snp->Cdb.OpFlags = CableDetectFlag;
Snp->Cdb.CPBsize = (UINT16) sizeof (PXE_CPB_INITIALIZE);
Snp->Cdb.DBsize = (UINT16) sizeof (PXE_DB_INITIALIZE);
Snp->Cdb.CPBaddr = (UINT64)(UINTN) Snp->Cpb;
Snp->Cdb.DBaddr = (UINT64)(UINTN) Snp->Db;
Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;
Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
Snp->Cdb.IFnum = Snp->IfNum;
Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
DEBUG ((EFI_D_NET, "\nSnp->undi.initialize() "));
(*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);
//
// There are two fields need to be checked here:
// First is the upper two bits (14 & 15) in the CDB.StatFlags field. Until these bits change to report
// PXE_STATFLAGS_COMMAND_COMPLETE or PXE_STATFLAGS_COMMAND_FAILED, the command has not been executed by the UNDI.
// Second is the CDB.StatCode field. After command execution completes, either successfully or not,
// the CDB.StatCode field contains the result of the command execution.
//
if ((((Snp->Cdb.StatFlags) & PXE_STATFLAGS_STATUS_MASK) == PXE_STATFLAGS_COMMAND_COMPLETE) &&
(Snp->Cdb.StatCode == PXE_STATCODE_SUCCESS)) {
//
// If cable detect feature is enabled in CDB.OpFlags, check the CDB.StatFlags to see if there is an
// active connection to this network device. If the no media StatFlag is set, the UNDI and network
// device are still initialized.
//
if (CableDetectFlag == PXE_OPFLAGS_INITIALIZE_DETECT_CABLE) {
if(((Snp->Cdb.StatFlags) & PXE_STATFLAGS_INITIALIZED_NO_MEDIA) != PXE_STATFLAGS_INITIALIZED_NO_MEDIA) {
Snp->Mode.MediaPresent = TRUE;
} else {
Snp->Mode.MediaPresent = FALSE;
}
}
Snp->Mode.State = EfiSimpleNetworkInitialized;
Status = EFI_SUCCESS;
} else {
DEBUG (
(EFI_D_WARN,
"\nSnp->undi.initialize() %xh:%xh\n",
Snp->Cdb.StatFlags,
Snp->Cdb.StatCode)
);
if (Snp->TxRxBuffer != NULL) {
Snp->PciIo->FreeBuffer (
Snp->PciIo,
SNP_MEM_PAGES (Snp->TxRxBufferSize),
(VOID *) Snp->TxRxBuffer
);
}
Snp->TxRxBuffer = NULL;
Status = EFI_DEVICE_ERROR;
}
return Status;
}
/**
Start this driver on ControllerHandle. This service is called by the
EFI boot service ConnectController(). In order to make
drivers as small as possible, there are a few calling restrictions for
this service. ConnectController() must follow these
calling restrictions. If any other agent wishes to call Start() it
must also follow these calling restrictions.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_DEVICE_ERROR This driver could not be started due to a device error
@retval other This driver does not support this device
**/
EFI_STATUS
EFIAPI
SimpleNetworkDriverStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL *Nii;
EFI_DEVICE_PATH_PROTOCOL *NiiDevicePath;
EFI_STATUS Status;
PXE_UNDI *Pxe;
SNP_DRIVER *Snp;
VOID *Address;
EFI_HANDLE Handle;
PXE_PCI_CONFIG_INFO ConfigInfo;
PCI_TYPE00 *ConfigHeader;
UINT32 *TempBar;
UINT8 BarIndex;
PXE_STATFLAGS InitStatFlags;
DEBUG ((EFI_D_NET, "\nSnpNotifyNetworkInterfaceIdentifier() "));
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &NiiDevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->LocateDevicePath (
&gEfiPciIoProtocolGuid,
&NiiDevicePath,
&Handle
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->OpenProtocol (
Handle,
&gEfiPciIoProtocolGuid,
(VOID **) &mPciIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Get the NII interface.
//
Status = gBS->OpenProtocol (
Controller,
&gEfiNetworkInterfaceIdentifierProtocolGuid_31,
(VOID **) &Nii,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
return Status;
}
DEBUG ((EFI_D_INFO, "Start(): UNDI3.1 found\n"));
Pxe = (PXE_UNDI *) (UINTN) (Nii->Id);
if (Calc8BitCksum (Pxe, Pxe->hw.Len) != 0) {
DEBUG ((EFI_D_NET, "\n!PXE checksum is not correct.\n"));
goto NiiError;
}
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED) != 0) {
//
// We can get any packets.
//
} else if ((Pxe->hw.Implementation & PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED) != 0) {
//
// We need to be able to get broadcast packets for DHCP.
// If we do not have promiscuous support, we must at least have
// broadcast support or we cannot do DHCP!
//
} else {
DEBUG ((EFI_D_NET, "\nUNDI does not have promiscuous or broadcast support."));
goto NiiError;
}
//
// OK, we like this UNDI, and we know snp is not already there on this handle
// Allocate and initialize a new simple network protocol structure.
//
Status = mPciIo->AllocateBuffer (
mPciIo,
AllocateAnyPages,
EfiBootServicesData,
SNP_MEM_PAGES (sizeof (SNP_DRIVER)),
&Address,
0
);
if (Status != EFI_SUCCESS) {
DEBUG ((EFI_D_NET, "\nCould not allocate SNP_DRIVER structure.\n"));
goto NiiError;
}
Snp = (SNP_DRIVER *) (UINTN) Address;
ZeroMem (Snp, sizeof (SNP_DRIVER));
Snp->PciIo = mPciIo;
Snp->Signature = SNP_DRIVER_SIGNATURE;
EfiInitializeLock (&Snp->Lock, TPL_NOTIFY);
Snp->Snp.Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
Snp->Snp.Start = SnpUndi32Start;
Snp->Snp.Stop = SnpUndi32Stop;
Snp->Snp.Initialize = SnpUndi32Initialize;
Snp->Snp.Reset = SnpUndi32Reset;
Snp->Snp.Shutdown = SnpUndi32Shutdown;
Snp->Snp.ReceiveFilters = SnpUndi32ReceiveFilters;
Snp->Snp.StationAddress = SnpUndi32StationAddress;
Snp->Snp.Statistics = SnpUndi32Statistics;
Snp->Snp.MCastIpToMac = SnpUndi32McastIpToMac;
Snp->Snp.NvData = SnpUndi32NvData;
Snp->Snp.GetStatus = SnpUndi32GetStatus;
Snp->Snp.Transmit = SnpUndi32Transmit;
Snp->Snp.Receive = SnpUndi32Receive;
Snp->Snp.WaitForPacket = NULL;
Snp->Snp.Mode = &Snp->Mode;
Snp->TxRxBufferSize = 0;
Snp->TxRxBuffer = NULL;
if (Nii->Revision >= EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_REVISION) {
Snp->IfNum = Nii->IfNum;
} else {
Snp->IfNum = (UINT8) (Nii->IfNum & 0xFF);
}
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_HW_UNDI) != 0) {
Snp->IsSwUndi = FALSE;
Snp->IssueUndi32Command = &IssueHwUndiCommand;
} else {
Snp->IsSwUndi = TRUE;
if ((Pxe->sw.Implementation & PXE_ROMID_IMP_SW_VIRT_ADDR) != 0) {
Snp->IssueUndi32Command = (ISSUE_UNDI32_COMMAND) (UINTN) Pxe->sw.EntryPoint;
} else {
Snp->IssueUndi32Command = (ISSUE_UNDI32_COMMAND) (UINTN) ((UINT8) (UINTN) Pxe + Pxe->sw.EntryPoint);
}
}
//
// Allocate a global CPB and DB buffer for this UNDI interface.
// we do this because:
//
// -UNDI 3.0 wants all the addresses passed to it (even the cpb and db) to be
// within 2GB limit, create them here and map them so that when undi calls
// v2p callback to check if the physical address is < 2gb, we will pass.
//
// -This is not a requirement for 3.1 or later UNDIs but the code looks
// simpler if we use the same cpb, db variables for both old and new undi
// interfaces from all the SNP interface calls (we don't map the buffers
// for the newer undi interfaces though)
// .
// -it is OK to allocate one global set of CPB, DB pair for each UNDI
// interface as EFI does not multi-task and so SNP will not be re-entered!
//
Status = mPciIo->AllocateBuffer (
mPciIo,
AllocateAnyPages,
EfiBootServicesData,
SNP_MEM_PAGES (4096),
&Address,
0
);
if (Status != EFI_SUCCESS) {
DEBUG ((EFI_D_NET, "\nCould not allocate CPB and DB structures.\n"));
goto Error_DeleteSNP;
}
Snp->Cpb = (VOID *) (UINTN) Address;
Snp->Db = (VOID *) ((UINTN) Address + 2048);
//
// PxeStart call is going to give the callback functions to UNDI, these callback
// functions use the BarIndex values from the snp structure, so these must be initialized
// with default values before doing a PxeStart. The correct values can be obtained after
// getting the config information from UNDI
//
Snp->MemoryBarIndex = 0;
Snp->IoBarIndex = 1;
//
// we need the undi init information many times in this snp code, just get it
// once here and store it in the snp driver structure. to get Init Info
// from UNDI we have to start undi first.
//
Status = PxeStart (Snp);
if (Status != EFI_SUCCESS) {
goto Error_DeleteSNP;
}
Snp->Cdb.OpCode = PXE_OPCODE_GET_INIT_INFO;
Snp->Cdb.OpFlags = PXE_OPFLAGS_NOT_USED;
Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;
Snp->Cdb.CPBaddr = PXE_DBADDR_NOT_USED;
Snp->Cdb.DBsize = (UINT16) sizeof (Snp->InitInfo);
Snp->Cdb.DBaddr = (UINT64)(UINTN) (&Snp->InitInfo);
Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;
Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
Snp->Cdb.IFnum = Snp->IfNum;
Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
DEBUG ((EFI_D_NET, "\nSnp->undi.get_init_info() "));
(*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);
//
// Save the INIT Stat Code...
//
InitStatFlags = Snp->Cdb.StatFlags;
if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {
DEBUG ((EFI_D_NET, "\nSnp->undi.init_info() %xh:%xh\n", Snp->Cdb.StatFlags, Snp->Cdb.StatCode));
PxeStop (Snp);
goto Error_DeleteSNP;
}
Snp->Cdb.OpCode = PXE_OPCODE_GET_CONFIG_INFO;
Snp->Cdb.OpFlags = PXE_OPFLAGS_NOT_USED;
Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;
Snp->Cdb.CPBaddr = PXE_DBADDR_NOT_USED;
Snp->Cdb.DBsize = (UINT16) sizeof (ConfigInfo);
Snp->Cdb.DBaddr = (UINT64)(UINTN) &ConfigInfo;
Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;
Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
Snp->Cdb.IFnum = Snp->IfNum;
Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
DEBUG ((EFI_D_NET, "\nSnp->undi.get_config_info() "));
(*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);
if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {
DEBUG ((EFI_D_NET, "\nSnp->undi.config_info() %xh:%xh\n", Snp->Cdb.StatFlags, Snp->Cdb.StatCode));
PxeStop (Snp);
goto Error_DeleteSNP;
}
//
// Find the correct BAR to do IO.
//
//
// Enumerate through the PCI BARs for the device to determine which one is
// the IO BAR. Save the index of the BAR into the adapter info structure.
// for regular 32bit BARs, 0 is memory mapped, 1 is io mapped
//
ConfigHeader = (PCI_TYPE00 *) ConfigInfo.Config.Byte;
TempBar = (UINT32 *) ConfigHeader->Device.Bar;
for (BarIndex = 0; BarIndex <= 5; BarIndex++) {
if ((*TempBar & PCI_BAR_MEM_MASK) == PCI_BAR_MEM_64BIT) {
//
// This is a 64-bit memory bar, skip this and the
// next bar as well.
//
TempBar++;
}
if ((*TempBar & PCI_BAR_IO_MASK) == PCI_BAR_IO_MODE) {
Snp->IoBarIndex = BarIndex;
break;
}
TempBar++;
}
//
// Initialize simple network protocol mode structure
//
Snp->Mode.State = EfiSimpleNetworkStopped;
Snp->Mode.HwAddressSize = Snp->InitInfo.HWaddrLen;
Snp->Mode.MediaHeaderSize = Snp->InitInfo.MediaHeaderLen;
Snp->Mode.MaxPacketSize = Snp->InitInfo.FrameDataLen;
Snp->Mode.NvRamAccessSize = Snp->InitInfo.NvWidth;
Snp->Mode.NvRamSize = Snp->InitInfo.NvCount * Snp->Mode.NvRamAccessSize;
Snp->Mode.IfType = Snp->InitInfo.IFtype;
Snp->Mode.MaxMCastFilterCount = Snp->InitInfo.MCastFilterCnt;
Snp->Mode.MCastFilterCount = 0;
switch (InitStatFlags & PXE_STATFLAGS_CABLE_DETECT_MASK) {
case PXE_STATFLAGS_CABLE_DETECT_SUPPORTED:
Snp->Mode.MediaPresentSupported = TRUE;
break;
case PXE_STATFLAGS_CABLE_DETECT_NOT_SUPPORTED:
default:
Snp->Mode.MediaPresentSupported = FALSE;
}
switch (InitStatFlags & PXE_STATFLAGS_GET_STATUS_NO_MEDIA_MASK) {
case PXE_STATFLAGS_GET_STATUS_NO_MEDIA_SUPPORTED:
Snp->MediaStatusSupported = TRUE;
break;
case PXE_STATFLAGS_GET_STATUS_NO_MEDIA_NOT_SUPPORTED:
default:
Snp->MediaStatusSupported = FALSE;
}
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_STATION_ADDR_SETTABLE) != 0) {
Snp->Mode.MacAddressChangeable = TRUE;
} else {
Snp->Mode.MacAddressChangeable = FALSE;
}
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_MULTI_FRAME_SUPPORTED) != 0) {
Snp->Mode.MultipleTxSupported = TRUE;
} else {
Snp->Mode.MultipleTxSupported = FALSE;
}
Snp->Mode.ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED) != 0) {
Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
}
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED) != 0) {
Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;
}
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED) != 0) {
Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;
}
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_FILTERED_MULTICAST_RX_SUPPORTED) != 0) {
Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST;
}
if ((Pxe->hw.Implementation & PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED) != 0) {
Snp->Mode.ReceiveFilterMask |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;
}
Snp->Mode.ReceiveFilterSetting = 0;
//
// need to get the station address to save in the mode structure. we need to
// initialize the UNDI first for this.
//
Snp->TxRxBufferSize = Snp->InitInfo.MemoryRequired;
Status = PxeInit (Snp, PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE);
if (EFI_ERROR (Status)) {
PxeStop (Snp);
goto Error_DeleteSNP;
}
Status = PxeGetStnAddr (Snp);
if (Status != EFI_SUCCESS) {
DEBUG ((EFI_D_ERROR, "\nSnp->undi.get_station_addr() failed.\n"));
PxeShutdown (Snp);
PxeStop (Snp);
goto Error_DeleteSNP;
}
Snp->Mode.MediaPresent = FALSE;
//
// We should not leave UNDI started and initialized here. this DriverStart()
// routine must only find and attach the SNP interface to UNDI layer that it
// finds on the given handle!
// The UNDI layer will be started when upper layers call Snp->start.
// How ever, this DriverStart() must fill up the snp mode structure which
// contains the MAC address of the NIC. For this reason we started and
// initialized UNDI here, now we are done, do a shutdown and stop of the
// UNDI interface!
//
PxeShutdown (Snp);
PxeStop (Snp);
//
// Create EXIT_BOOT_SERIVES Event
//
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
SnpNotifyExitBootServices,
Snp,
&gEfiEventExitBootServicesGuid,
&Snp->ExitBootServicesEvent
);
if (EFI_ERROR (Status)) {
goto Error_DeleteSNP;
}
//
// add SNP to the undi handle
//
Status = gBS->InstallProtocolInterface (
&Controller,
&gEfiSimpleNetworkProtocolGuid,
EFI_NATIVE_INTERFACE,
&(Snp->Snp)
);
if (!EFI_ERROR (Status)) {
return Status;
}
mPciIo->FreeBuffer (
mPciIo,
SNP_MEM_PAGES (4096),
Snp->Cpb
);
Error_DeleteSNP:
mPciIo->FreeBuffer (
mPciIo,
SNP_MEM_PAGES (sizeof (SNP_DRIVER)),
Snp
);
NiiError:
gBS->CloseProtocol (
Controller,
&gEfiNetworkInterfaceIdentifierProtocolGuid_31,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
//
// If we got here that means we are in error state.
//
if (!EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
}
return Status;
}
EFI_STATUS
pxe_init (
SNP_DRIVER *snp,
UINT16 CableDetectFlag
)
/*++
Routine Description:
this routine calls undi to initialize the interface.
Arguments:
snp - pointer to snp driver structure
CableDetectFlag - Do/don't detect the cable (depending on what undi supports)
Returns:
--*/
{
PXE_CPB_INITIALIZE *cpb;
VOID *addr;
EFI_STATUS Status;
cpb = snp->cpb;
if (snp->tx_rx_bufsize != 0) {
Status = snp->IoFncs->AllocateBuffer (
snp->IoFncs,
AllocateAnyPages,
EfiBootServicesData,
SNP_MEM_PAGES (snp->tx_rx_bufsize),
&addr,
0
);
if (Status != EFI_SUCCESS) {
DEBUG (
(EFI_D_ERROR,
"\nsnp->pxe_init() AllocateBuffer %xh (%r)\n",
Status,
Status)
);
return Status;
}
ASSERT (addr);
snp->tx_rx_buffer = addr;
}
cpb->MemoryAddr = (UINT64)(UINTN) snp->tx_rx_buffer;
cpb->MemoryLength = snp->tx_rx_bufsize;
//
// let UNDI decide/detect these values
//
cpb->LinkSpeed = 0;
cpb->TxBufCnt = 0;
cpb->TxBufSize = 0;
cpb->RxBufCnt = 0;
cpb->RxBufSize = 0;
cpb->Duplex = PXE_DUPLEX_DEFAULT;
cpb->LoopBack = LOOPBACK_NORMAL;
snp->cdb.OpCode = PXE_OPCODE_INITIALIZE;
snp->cdb.OpFlags = CableDetectFlag;
snp->cdb.CPBsize = sizeof (PXE_CPB_INITIALIZE);
snp->cdb.DBsize = sizeof (PXE_DB_INITIALIZE);
snp->cdb.CPBaddr = (UINT64)(UINTN) snp->cpb;
snp->cdb.DBaddr = (UINT64)(UINTN) snp->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;
DEBUG ((EFI_D_NET, "\nsnp->undi.initialize() "));
(*snp->issue_undi32_command) ((UINT64)(UINTN) &snp->cdb);
if (snp->cdb.StatCode == PXE_STATCODE_SUCCESS) {
snp->mode.State = EfiSimpleNetworkInitialized;
Status = EFI_SUCCESS;
} else {
DEBUG (
(EFI_D_WARN,
"\nsnp->undi.initialize() %xh:%xh\n",
snp->cdb.StatFlags,
snp->cdb.StatCode)
);
if (snp->tx_rx_buffer != NULL) {
snp->IoFncs->FreeBuffer (
snp->IoFncs,
SNP_MEM_PAGES (snp->tx_rx_bufsize),
(VOID *) snp->tx_rx_buffer
);
}
snp->tx_rx_buffer = NULL;
Status = EFI_DEVICE_ERROR;
}
return Status;
}
