Determining A High Data Rate For Backchannel Communications For Initialization of High-Speed Networks

摘要

One embodiment provides a network controller. The network controller includes physical interface (PHY) circuitry comprising transmitter circuitry configured to transmit data frames to a link partner in communication with the transmit circuitry over a channel link. The network controller also includes a link speed cycling module configured to, upon initialization of the PHY circuitry, cause the transmitter circuitry to transmit data frames to the link partner using at least one high rate link speed. The network controller also includes an equalization presets module configured to apply at least one equalization preset setting to the transmitter circuitry while the transmitter circuitry is transmitting the data frames to the link partner. The link speed module is further configured to cause the transmitter circuitry to dwell, for a transmitter dwell time period, for the at least one equalization preset setting at the at least one high rate link speed. The transmitter dwell time period is sufficient to allow the link partner to lock on to the transmitted data frames.

主权项

1. A network controller, comprising:
physical interface (PHY) circuitry comprising transmitter circuitry configured to transmit data frames to a link partner in communication with the transmit circuitry over a channel link; a link speed cycling module configured to, upon initialization of the PHY circuitry, cause the transmitter circuitry to transmit data frames to the link partner using at least one high rate link speed; and an equalization presets cycling module configured to apply at least one equalization preset setting to the transmitter circuitry while the transmitter circuitry is transmitting the data frames to the link partner; wherein the link speed module is further configured to cause the transmitter circuitry to dwell, for a transmitter dwell time period, for the at least one equalization preset setting at the at least one high rate link speed; wherein the transmitter dwell time period is sufficient to allow the link partner to lock on to the transmitted data frames.