Dynamically loading PCI information with iPXE scripting

gistfile1.txt

#!ipxe

set spaces:hex 20:20:20:20:20:20:20:20:20:20:20:20:20:20:20:20:20:20

clear addr
:load pciscan addr || goto load_done
  set vendor ${pci/${addr}.0.2}
  set device ${pci/${addr}.2.2}
  chain -a pci/${vendor}.ipxe ||
  chain -a pci/${vendor}/${device}.ipxe ||
  goto load
:load_done

clear addr
:scan pciscan addr || goto scan_done
  set vendor ${pci/${addr}.0.2}
  set device ${pci/${addr}.2.2}
  echo ${addr:busdevfn}: ${vendor}:${device} ${ven/${vendor}}
  isset ${dev/${vendor}${device}} && echo ${spaces:string} ${dev/${vendor}${device}} ||
  goto scan
:scan_done