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Fix bugs in the PCI bus driver to support SR-IOV.

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1. Expand the type of Offset in the _PCI_BAR structure from UINT8 to UINT16, because a VF BAR’s offset may be >= 0x100;
2. Enable ARI Capable Hierarchy for SR-IOV devices at earlier time because FirstVFOffset and VFStride of a SR-IOV device may change after its ARI Capable Hierarchy is set;
3. Change type of PcdSrIovSupport, PcdAriSupport, PcdMrIovSupport from FeatureFlag to [FixAtBuild, PcdDynamics], which allows SR-IOV/MR-IOV/ARI feature can be turn on/off dynamically, typically via a setup option.
4. Change PCI bus scan algorithm in PciScanBus() to prevent the case where some ARI extended functions may be skipped in the scan loop.


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10644 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
rsun3
2010-07-13 01:58:47 +00:00
parent 78c0686bde
commit d40483911c
6 changed files with 295 additions and 234 deletions
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6
MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.h
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@@ -1,7 +1,7 @@
/** @file
PCI emumeration support functions declaration for PCI Bus module.
Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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
@@ -364,7 +364,7 @@ InitializeP2C (
Create and initiliaze general PCI I/O device instance for
PCI device/bridge device/hotplug bridge device.
@param PciRootBridgeIo Pointer to instance of EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
@param Bridge Parent bridge instance.
@param Pci Input Pci information block.
@param Bus Device Bus NO.
@param Device Device device NO.
@@ -375,7 +375,7 @@ InitializeP2C (
**/
PCI_IO_DEVICE *
CreatePciIoDevice (
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,
IN PCI_IO_DEVICE *Bridge,
IN PCI_TYPE00 *Pci,
IN UINT8 Bus,
IN UINT8 Device,