Hardware Locality (hwloc) 2.14.0

Data Fields
hwloc_obj_attr_u::hwloc_pcidev_attr_s Struct Reference

`#include <hwloc.h>`

## Data Fields
unsigned short | domain
unsigned char | bus
unsigned char | dev
unsigned char | func
unsigned short | class_id
unsigned short | vendor_id
unsigned short | device_id
unsigned short | subvendor_id
unsigned short | subdevice_id
unsigned char | revision
float | linkspeed

## Detailed Description

PCI Device specific Object Attributes.

## Field Documentation

## ◆ bus

unsigned char hwloc_obj_attr_u::hwloc_pcidev_attr_s::bus

Bus number (yy in the PCI BDF notation xxxx:yy:zz.t).

## ◆ class_id

unsigned short hwloc_obj_attr_u::hwloc_pcidev_attr_s::class_id

The class number (first two bytes, without the prog_if).

## ◆ dev

unsigned char hwloc_obj_attr_u::hwloc_pcidev_attr_s::dev

Device number (zz in the PCI BDF notation xxxx:yy:zz.t).

## ◆ device_id

unsigned short hwloc_obj_attr_u::hwloc_pcidev_attr_s::device_id

Device ID (yyyy in [xxxx:yyyy]).

## ◆ domain

unsigned short hwloc_obj_attr_u::hwloc_pcidev_attr_s::domain

Domain number (xxxx in the PCI BDF notation xxxx:yy:zz.t). Only 16bits PCI domains are supported by default.

## ◆ func

unsigned char hwloc_obj_attr_u::hwloc_pcidev_attr_s::func

Function number (t in the PCI BDF notation xxxx:yy:zz.t).

## ◆ linkspeed

float hwloc_obj_attr_u::hwloc_pcidev_attr_s::linkspeed

Link speed in GB/s. This datarate is the currently configured speed of the entire PCI link (sum of the bandwidth of all PCI lanes in that link). It may change during execution since some devices are able to slow their PCI links down when idle.

## ◆ revision

unsigned char hwloc_obj_attr_u::hwloc_pcidev_attr_s::revision

Revision number.

## ◆ subdevice_id

unsigned short hwloc_obj_attr_u::hwloc_pcidev_attr_s::subdevice_id

Sub-Device ID.

## ◆ subvendor_id

unsigned short hwloc_obj_attr_u::hwloc_pcidev_attr_s::subvendor_id

Sub-Vendor ID.

## ◆ vendor_id

unsigned short hwloc_obj_attr_u::hwloc_pcidev_attr_s::vendor_id

Vendor ID (xxxx in [xxxx:yyyy]).

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

- hwloc.h