HostPci Class Reference

A helper for PCI config space access. More...

#include <hostpci.h>

Inheritance diagram for HostPci:

Public Types
enum	{   BAR0 = 4, MAX_BAR = 6, BAR_TYPE_MASK = 0x6, BAR_TYPE_32B = 0x0,   BAR_TYPE_64B = 0x4, BAR_IO = 0x1, BAR_IO_MASK = 0xFFFFFFFCU, BAR_MEM_MASK = 0xFFFFFFF0U,   CAP_MSI = 0x05U, CAP_MSIX = 0x11U, CAP_PCIE = 0x10U }

Public Member Functions
unsigned	conf_read (unsigned bdf, unsigned dword)
void	conf_write (unsigned bdf, unsigned dword, unsigned value)
unsigned	count_bars (unsigned bdf)
	Induce the number of the bars from the header-type.
unsigned	search_device (unsigned theclass, unsigned subclass, unsigned instance)
	Searches for a given device and returns the bdf of it.
unsigned	search_bridge (unsigned dst)
	Scan the PCI root bus for bridges.
unsigned	get_gsi_msi (DBus< MessageHostOp > &bus_hostop, unsigned bdf, unsigned nr, void *msix_table=0)
	Program the nr-th MSI/MSI-X vector of the given device.
unsigned	get_gsi (DBus< MessageHostOp > &bus_hostop, DBus< MessageAcpi > &bus_acpi, unsigned bdf, unsigned nr, bool level=false, void *msix_table=0)
	Returns the gsi and enables them.
unsigned	find_cap (unsigned bdf, unsigned char id)
	Find the position of a legacy PCI capability.
unsigned	find_extended_cap (unsigned bdf, unsigned short id)
	Find the position of an extended PCI capability.
unsigned long long	bar_base (unsigned bdf, unsigned bar, unsigned *type=0)
	Get the base and the type of a bar.
unsigned long long	bar_size (unsigned bdf, unsigned bar, bool *is64bit=0)
	Determines BAR size.
	HostPci (DBus< MessageHwPciConfig > &bus_pcicfg, DBus< MessageHostOp > &bus_hostop)

Private Attributes
DBus< MessageHwPciConfig > &	_bus_pcicfg
DBus< MessageHostOp > &	_bus_hostop

Detailed Description

A helper for PCI config space access.

Member Enumeration Documentation

anonymous enum

Enumerator:

BAR0
MAX_BAR
BAR_TYPE_MASK
BAR_TYPE_32B
BAR_TYPE_64B
BAR_IO
BAR_IO_MASK
BAR_MEM_MASK
CAP_MSI
CAP_MSIX
CAP_PCIE

Constructor & Destructor Documentation

HostPci::HostPci ( DBus< MessageHwPciConfig > &  bus_pcicfg, DBus< MessageHostOp > &  bus_hostop  )

inline

Member Function Documentation

unsigned long long HostPci::bar_base ( unsigned  bdf, unsigned  bar, unsigned *  type = 0  )

inline

Get the base and the type of a bar.

unsigned long long HostPci::bar_size ( unsigned  bdf, unsigned  bar, bool *  is64bit = 0  )

inline

Determines BAR size.

You should probably disable interrupt delivery from this device, while querying BAR sizes.

unsigned HostPci::conf_read ( unsigned  bdf, unsigned  dword  )

inline

void HostPci::conf_write ( unsigned  bdf, unsigned  dword, unsigned  value  )

inline

unsigned HostPci::count_bars ( unsigned  bdf )

inline

Induce the number of the bars from the header-type.

unsigned HostPci::find_cap ( unsigned  bdf, unsigned char  id  )

inline

Find the position of a legacy PCI capability.

unsigned HostPci::find_extended_cap ( unsigned  bdf, unsigned short  id  )

inline

Find the position of an extended PCI capability.

unsigned HostPci::get_gsi ( DBus< MessageHostOp > &  bus_hostop, DBus< MessageAcpi > &  bus_acpi, unsigned  bdf, unsigned  nr, bool  level = false, void *  msix_table = 0  )

inline

Returns the gsi and enables them.

unsigned HostPci::get_gsi_msi ( DBus< MessageHostOp > &  bus_hostop, unsigned  bdf, unsigned  nr, void *  msix_table = 0  )

inline

Program the nr-th MSI/MSI-X vector of the given device.

unsigned HostPci::search_bridge ( unsigned  dst )

inline

Scan the PCI root bus for bridges.

unsigned HostPci::search_device ( unsigned  theclass, unsigned  subclass, unsigned  instance  )

inline

Searches for a given device and returns the bdf of it.

Member Data Documentation

DBus<MessageHostOp>& HostPci::_bus_hostop

private

DBus<MessageHwPciConfig>& HostPci::_bus_pcicfg

private

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The documentation for this class was generated from the following file:

• base/include/host/hostpci.h