/** @file\r
Implementation of driver entry point and driver binding protocol.\r
\r
-Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials are licensed\r
and made available under the terms and conditions of the BSD License which\r
accompanies this distribution. The full text of the license may be found at\r
\r
#include "Snp.h"\r
\r
-//\r
-// Module global variables needed to support undi 3.0 interface\r
-//\r
-EFI_PCI_IO_PROTOCOL *mPciIo;\r
-V2P *mV2p = NULL; // undi3.0 map_list head\r
-// End Global variables\r
-//\r
-\r
/**\r
One notified function to stop UNDI device when gBS->ExitBootServices() called.\r
\r
SNP_DRIVER *Snp;\r
VOID *Address;\r
EFI_HANDLE Handle;\r
- PXE_PCI_CONFIG_INFO ConfigInfo;\r
- PCI_TYPE00 *ConfigHeader;\r
- UINT32 *TempBar;\r
UINT8 BarIndex;\r
PXE_STATFLAGS InitStatFlags;\r
-\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *BarDesc;\r
+ BOOLEAN FoundIoBar;\r
+ BOOLEAN FoundMemoryBar;\r
+ \r
DEBUG ((EFI_D_NET, "\nSnpNotifyNetworkInterfaceIdentifier() "));\r
\r
Status = gBS->OpenProtocol (\r
Status = gBS->OpenProtocol (\r
Handle,\r
&gEfiPciIoProtocolGuid,\r
- (VOID **) &mPciIo,\r
+ (VOID **) &PciIo,\r
This->DriverBindingHandle,\r
Controller,\r
EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
// OK, we like this UNDI, and we know snp is not already there on this handle\r
// Allocate and initialize a new simple network protocol structure.\r
//\r
- Status = mPciIo->AllocateBuffer (\r
- mPciIo,\r
- AllocateAnyPages,\r
- EfiBootServicesData,\r
- SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r
- &Address,\r
- 0\r
- );\r
+ Status = PciIo->AllocateBuffer (\r
+ PciIo,\r
+ AllocateAnyPages,\r
+ EfiBootServicesData,\r
+ SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r
+ &Address,\r
+ 0\r
+ );\r
\r
if (Status != EFI_SUCCESS) {\r
DEBUG ((EFI_D_NET, "\nCould not allocate SNP_DRIVER structure.\n"));\r
\r
ZeroMem (Snp, sizeof (SNP_DRIVER));\r
\r
- Snp->PciIo = mPciIo;\r
+ Snp->PciIo = PciIo;\r
Snp->Signature = SNP_DRIVER_SIGNATURE;\r
\r
EfiInitializeLock (&Snp->Lock, TPL_NOTIFY);\r
Snp->TxRxBuffer = NULL;\r
\r
if (Nii->Revision >= EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_REVISION) {\r
- Snp->IfNum = Nii->IfNum;\r
+ Snp->IfNum = Nii->IfNum;\r
\r
} else {\r
Snp->IfNum = (UINT8) (Nii->IfNum & 0xFF);\r
// -it is OK to allocate one global set of CPB, DB pair for each UNDI\r
// interface as EFI does not multi-task and so SNP will not be re-entered!\r
//\r
- Status = mPciIo->AllocateBuffer (\r
- mPciIo,\r
- AllocateAnyPages,\r
- EfiBootServicesData,\r
- SNP_MEM_PAGES (4096),\r
- &Address,\r
- 0\r
- );\r
+ Status = PciIo->AllocateBuffer (\r
+ PciIo,\r
+ AllocateAnyPages,\r
+ EfiBootServicesData,\r
+ SNP_MEM_PAGES (4096),\r
+ &Address,\r
+ 0\r
+ );\r
\r
if (Status != EFI_SUCCESS) {\r
DEBUG ((EFI_D_NET, "\nCould not allocate CPB and DB structures.\n"));\r
Snp->Db = (VOID *) ((UINTN) Address + 2048);\r
\r
//\r
- // PxeStart call is going to give the callback functions to UNDI, these callback\r
- // functions use the BarIndex values from the snp structure, so these must be initialized\r
- // with default values before doing a PxeStart. The correct values can be obtained after\r
- // getting the config information from UNDI\r
+ // Find the correct BAR to do IO.\r
+ //\r
+ // Enumerate through the PCI BARs for the device to determine which one is\r
+ // the IO BAR. Save the index of the BAR into the adapter info structure.\r
+ // for regular 32bit BARs, 0 is memory mapped, 1 is io mapped\r
//\r
Snp->MemoryBarIndex = 0;\r
Snp->IoBarIndex = 1;\r
+ FoundMemoryBar = FALSE;\r
+ FoundIoBar = FALSE;\r
+ for (BarIndex = 0; BarIndex < PCI_MAX_BAR; BarIndex++) {\r
+ Status = PciIo->GetBarAttributes (\r
+ PciIo,\r
+ BarIndex,\r
+ NULL,\r
+ (VOID**) &BarDesc\r
+ );\r
+ if (Status == EFI_UNSUPPORTED) {\r
+ continue;\r
+ } else if (EFI_ERROR (Status)) {\r
+ goto Error_DeleteSNP;\r
+ }\r
+\r
+ if ((!FoundMemoryBar) && (BarDesc->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM)) {\r
+ Snp->MemoryBarIndex = BarIndex;\r
+ FoundMemoryBar = TRUE;\r
+ } else if ((!FoundIoBar) && (BarDesc->ResType == ACPI_ADDRESS_SPACE_TYPE_IO)) {\r
+ Snp->IoBarIndex = BarIndex;\r
+ FoundIoBar = TRUE;\r
+ }\r
+\r
+ FreePool (BarDesc);\r
+\r
+ if (FoundMemoryBar && FoundIoBar) {\r
+ break;\r
+ }\r
+ }\r
\r
- //\r
- // we need the undi init information many times in this snp code, just get it\r
- // once here and store it in the snp driver structure. to get Init Info\r
- // from UNDI we have to start undi first.\r
- //\r
Status = PxeStart (Snp);\r
\r
if (Status != EFI_SUCCESS) {\r
goto Error_DeleteSNP;\r
}\r
\r
- Snp->Cdb.OpCode = PXE_OPCODE_GET_CONFIG_INFO;\r
- Snp->Cdb.OpFlags = PXE_OPFLAGS_NOT_USED;\r
-\r
- Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r
- Snp->Cdb.CPBaddr = PXE_DBADDR_NOT_USED;\r
-\r
- Snp->Cdb.DBsize = (UINT16) sizeof (ConfigInfo);\r
- Snp->Cdb.DBaddr = (UINT64)(UINTN) &ConfigInfo;\r
-\r
- Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r
- Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r
-\r
- Snp->Cdb.IFnum = Snp->IfNum;\r
- Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r
-\r
- DEBUG ((EFI_D_NET, "\nSnp->undi.get_config_info() "));\r
-\r
- (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r
-\r
- if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {\r
- DEBUG ((EFI_D_NET, "\nSnp->undi.config_info() %xh:%xh\n", Snp->Cdb.StatFlags, Snp->Cdb.StatCode));\r
- PxeStop (Snp);\r
- goto Error_DeleteSNP;\r
- }\r
- //\r
- // Find the correct BAR to do IO.\r
- //\r
- //\r
- // Enumerate through the PCI BARs for the device to determine which one is\r
- // the IO BAR. Save the index of the BAR into the adapter info structure.\r
- // for regular 32bit BARs, 0 is memory mapped, 1 is io mapped\r
- //\r
- ConfigHeader = (PCI_TYPE00 *) ConfigInfo.Config.Byte;\r
- TempBar = (UINT32 *) ConfigHeader->Device.Bar;\r
- for (BarIndex = 0; BarIndex <= 5; BarIndex++) {\r
- if ((*TempBar & PCI_BAR_MEM_MASK) == PCI_BAR_MEM_64BIT) {\r
- //\r
- // This is a 64-bit memory bar, skip this and the\r
- // next bar as well.\r
- //\r
- TempBar++;\r
- }\r
-\r
- if ((*TempBar & PCI_BAR_IO_MASK) == PCI_BAR_IO_MODE) {\r
- Snp->IoBarIndex = BarIndex;\r
- break;\r
- }\r
-\r
- TempBar++;\r
- }\r
-\r
//\r
// Initialize simple network protocol mode structure\r
//\r
return Status;\r
}\r
\r
- mPciIo->FreeBuffer (\r
- mPciIo,\r
- SNP_MEM_PAGES (4096),\r
- Snp->Cpb\r
- );\r
+ PciIo->FreeBuffer (\r
+ PciIo,\r
+ SNP_MEM_PAGES (4096),\r
+ Snp->Cpb\r
+ );\r
\r
Error_DeleteSNP:\r
\r
- mPciIo->FreeBuffer (\r
- mPciIo,\r
- SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r
- Snp\r
- );\r
+ PciIo->FreeBuffer (\r
+ PciIo,\r
+ SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r
+ Snp\r
+ );\r
NiiError:\r
gBS->CloseProtocol (\r
Controller,\r
EFI_STATUS Status;\r
EFI_SIMPLE_NETWORK_PROTOCOL *SnpProtocol;\r
SNP_DRIVER *Snp;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
\r
//\r
// Get our context back.\r
PxeShutdown (Snp);\r
PxeStop (Snp);\r
\r
- mPciIo->FreeBuffer (\r
- mPciIo,\r
- SNP_MEM_PAGES (4096),\r
- Snp->Cpb\r
- );\r
+ PciIo = Snp->PciIo;\r
+ PciIo->FreeBuffer (\r
+ PciIo,\r
+ SNP_MEM_PAGES (4096),\r
+ Snp->Cpb\r
+ );\r
\r
- mPciIo->FreeBuffer (\r
- mPciIo,\r
- SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r
- Snp\r
- );\r
+ PciIo->FreeBuffer (\r
+ PciIo,\r
+ SNP_MEM_PAGES (sizeof (SNP_DRIVER)),\r
+ Snp\r
+ );\r
\r
return Status;\r
}\r
NULL\r
};\r
\r
-\r
-/**\r
- This routine maps the given CPU address to a Device address. It creates a\r
- an entry in the map list with the virtual and physical addresses and the\r
- un map cookie.\r
-\r
- @param V2p pointer to return a map list node pointer.\r
- @param Type the direction in which the data flows from the given\r
- virtual address device->cpu or cpu->device or both\r
- ways.\r
- @param VirtualAddress virtual address (or CPU address) to be mapped.\r
- @param BufferSize size of the buffer to be mapped.\r
-\r
- @retval EFI_SUCEESS routine has completed the mapping.\r
- @retval EFI_INVALID_PARAMETER invalid parameter.\r
- @retval EFI_OUT_OF_RESOURCES out of resource.\r
- @retval other error as indicated.\r
-\r
-**/\r
-EFI_STATUS\r
-AddV2P (\r
- IN OUT V2P **V2p,\r
- EFI_PCI_IO_PROTOCOL_OPERATION Type,\r
- VOID *VirtualAddress,\r
- UINTN BufferSize\r
- )\r
-{\r
- EFI_STATUS Status;\r
-\r
- if ((V2p == NULL) || (VirtualAddress == NULL) || (BufferSize == 0)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- *V2p = AllocatePool (sizeof (V2P));\r
- if (*V2p == NULL) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- Status = mPciIo->Map (\r
- mPciIo,\r
- Type,\r
- VirtualAddress,\r
- &BufferSize,\r
- &(*V2p)->PhysicalAddress,\r
- &(*V2p)->Unmap\r
- );\r
- if (Status != EFI_SUCCESS) {\r
- FreePool (*V2p);\r
- return Status;\r
- }\r
- (*V2p)->VirtualAddress = VirtualAddress;\r
- (*V2p)->BufferSize = BufferSize;\r
- (*V2p)->Next = mV2p;\r
- mV2p = *V2p;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-\r
-/**\r
- This routine searches the linked list of mapped address nodes (for undi3.0\r
- interface) to find the node that corresponds to the given virtual address and\r
- returns a pointer to that node.\r
-\r
- @param V2p pointer to return a map list node pointer.\r
- @param VirtualAddr virtual address (or CPU address) to be searched in\r
- the map list\r
-\r
- @retval EFI_SUCEESS A match was found.\r
- @retval Other A match cannot be found.\r
-\r
-**/\r
-EFI_STATUS\r
-FindV2p (\r
- V2P **V2p,\r
- VOID *VirtualAddr\r
- )\r
-{\r
- V2P *Ptr;\r
-\r
- if (V2p == NULL || VirtualAddr == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- for (Ptr = mV2p; Ptr != NULL; Ptr = Ptr->Next) {\r
- if (Ptr->VirtualAddress == VirtualAddr) {\r
- *V2p = Ptr;\r
- return EFI_SUCCESS;\r
- }\r
- }\r
-\r
- return EFI_NOT_FOUND;\r
-}\r
-\r
-\r
-/**\r
- Unmap the given virtual address and free the memory allocated for the map list\r
- node corresponding to that address.\r
-\r
- @param VirtualAddress virtual address (or CPU address) to be unmapped.\r
-\r
- @retval EFI_SUCEESS Successfully unmapped.\r
- @retval Other Other errors as indicated.\r
-\r
-**/\r
-EFI_STATUS\r
-DelV2p (\r
- VOID *VirtualAddress\r
- )\r
-{\r
- V2P *Current;\r
- V2P *Next;\r
- EFI_STATUS Status;\r
-\r
- if (VirtualAddress == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (mV2p == NULL) {\r
- return EFI_NOT_FOUND;\r
- }\r
- //\r
- // Is our node at the head of the list??\r
- //\r
- if ((Current = mV2p)->VirtualAddress == VirtualAddress) {\r
- mV2p = mV2p->Next;\r
-\r
- Status = mPciIo->Unmap (mPciIo, Current->Unmap);\r
-\r
- FreePool (Current);\r
-\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "Unmap failed with status = %r\n", Status));\r
- }\r
- return Status;\r
- }\r
-\r
- for (; Current->Next != NULL; Current = Next) {\r
- if ((Next = Current->Next)->VirtualAddress == VirtualAddress) {\r
- Current->Next = Next->Next;\r
- Status = mPciIo->Unmap (mPciIo, Next->Unmap);\r
- FreePool (Next);\r
-\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "Unmap failed with status = %r\n", Status));\r
- }\r
- return Status;\r
- }\r
- }\r
-\r
- return EFI_NOT_FOUND;\r
-}\r
-\r
/**\r
The SNP driver entry point.\r
\r
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