Link power management in an I/O interconnect

摘要

Described are embodiments of methods, apparatuses, and systems for link power management in an I/O interconnect. An apparatus for link power management in an I/O interconnect of a computer apparatus may include a switching fabric having a first switch and a second switch, configured to simultaneously transport first data packets over a first path of a link between a port of the first switch and a port of the second switch and second data packets over a second path of the link. The apparatus may include a power management unit configured to modify a power state of the port of the first switch based at least in part on relative power states of the first path and the second path. Other embodiments may be described and claimed.

主权项

1. An apparatus, comprising:
a first switch of an input/output (I/O) interconnect switching fabric, to transport first data packets over a first path between a first port of the first switch and a second port of the first switch and second data packets over a second path between the first port and a third port of the first switch; a power management unit included in the first switch, to modify a respective power state of the first, second or third ports based at least in part on relative power states of the first and second paths; and a second switch to transport the first data packets between the first port of the first switch and a fourth port of the second switch over a third path.