Configuration access mechanism for packet switching architecture

A method for accessing a configuration space of a device is described. The method includes setting a first field of a packet to a value to specify a destination device, and setting a second field of the packet to a defined value to indicate that the packet is a configuration access packet. The metho...

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Bibliographic Details
Main Authors Mayhew, David E, Comins, Todd R, Brocco, Lynne M, Schaefer, Joseph A, Solomon, Gary A, Butler, Edward
Format Patent
LanguageEnglish
Published 04.11.2008
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Summary:A method for accessing a configuration space of a device is described. The method includes setting a first field of a packet to a value to specify a destination device, and setting a second field of the packet to a defined value to indicate that the packet is a configuration access packet. The method further includes setting a third field of the configuration access packet to a value to select one of a plurality of configuration apertures of a configuration space of the destination device, and setting a fourth field of the configuration access packet to a value to address a specific memory location within the selected aperture.