• Ben Hutchings's avatar
    PCI: Expose PCI VPD through sysfs · 94e61088
    Ben Hutchings authored
    Vital Product Data (VPD) may be exposed by PCI devices in several
    ways.  It is generally unsafe to read this information through the
    existing interfaces to user-land because of stateful interfaces.
    
    This adds:
    - abstract operations for VPD access (struct pci_vpd_ops)
    - VPD state information in struct pci_dev (struct pci_vpd)
    - an implementation of the VPD access method specified in PCI 2.2
      (in access.c)
    - a 'vpd' binary file in sysfs directories for PCI devices with VPD
      operations defined
    
    It adds a probe for PCI 2.2 VPD in pci_scan_device() and release of
    VPD state in pci_release_dev().
    Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
    94e61088
probe.c 32.1 KB