PCI-PCI bridge allowing controlling of a plurality of PCI agents including a VGA device
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsRobert Streitenberger, Hiroyuki Kawai
Life of this patent
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Abstract
A PCI-PCI bridge is connected between a primary PCI bus and a secondary PCI bus, and includes a bridge for connecting the secondary PCI bus to the primary PCI bus. The bridge has a type “00” configuration header, and identifies, at the time of configuration, one of a plurality of PCI agents including a VGA device on the secondary PCI bus based on a value of a function number field of the configuration command from the device driver, and that the identified agent to execute configuration.
Claims20
A PCI-PCI bridge connected to a primary PCI bus and a secondary PCI bus, comprising
- connecting means for connecting said secondary PCI bus to said primary PCI bus, for controlling data transfer therebetween,
- said connecting means having a type “00” configuration header and including means for identifying, based on a value of a function number field of a configuration command from a device driver, at the time of configuration, one of a plurality of PCI agents on said secondary PCI bus and having the identified agent execute configuration.
A PCI-PCI bridge connected to a primary PCI bus and a secondary PCI bus, comprising
- a bridge connecting said second PCI bus to said primary PCI bus, wherein
- said bridge has a type “00” configuration header and based on a value of a function number field of a configuration command from a device driver, at the time of configuration, identifies one of a plurality of PCI agents on said secondary PCI bus and lets the identified agent execute configuration.
Dependencies are inferred from the claim text.