Abstract:
A general input/output communication port implements a communication stack that includes a physical layer, a data link layer and a transaction layer. The transaction layer includes assembling a packet header for a message request transaction to one or more logical devices. The packet header includes a format field to indicate the length of the packet header and to further specify whether the packet header includes a data payload, a subset of a type field to indicate the packet header relates to the message request transaction and a message field. The message field includes a message to implement the message request transaction. The message includes at least one message that is selected from a group of messages. The group of messages to include a message to unlock a logical device, a message to reset a logical device, a message to indicate a correctable error condition, a message to indicate an uncorrectable error condition, a message to indicate a fatal error condition, a message to report a bad request packet, a message to indicate power management and a message to emulate an interrupt signal.
Abstract:
A device is provided with two or more uplink ports to connect the device via two or more links to one or more sockets, where each of the sockets includes one or more processing cores, and each of the two or more links is compliant with a particular interconnect protocol. The device further includes I/O logic to identify data to be sent to the one or more processing cores for processing, determine an affinity attribute associated with the data, and determine which of the two or more links to use to send the data to the one or more processing cores based on the affinity attribute.
Abstract:
A storage device is provided to maintain a value of flow control credits allocated for a device on a channel and flow control logic is provided to receive a flow control signal over a link of an interconnect, the flow control signal indicating flow control credits allocated for the device on the channel. The flow control logic is further to update the value of flow control credits based on activity of the device on the channel.
Abstract:
A device is provided with two or more uplink ports to connect the device via two or more links to one or more sockets, where each of the sockets includes one or more processing cores, and each of the two or more links is compliant with a particular interconnect protocol. The device further includes I/O logic to identify data to be sent to the one or more processing cores for processing, determine an affinity attribute associated with the data, and determine which of the two or more links to use to send the data to the one or more processing cores based on the affinity attribute.
Abstract:
An apparatus is provided, where the apparatus may include a first terminal and a second terminal to be coupled to a host via a first wire and a second wire, respectively; a rechargeable storage; and a data circuitry. The apparatus may, during a first time-period, receive power via the first wire and the second wire from the host, and store the power in the rechargeable storage, and during a second time-period, transmit data from the data circuitry to the host via the first wire and the second wire. The first and second time-periods may be non-overlapping time periods. The apparatus is to refrain from transmitting any data to, or receiving any data from, the host during the first time period.
Abstract:
Techniques for embedded high speed serial interface methods are described herein. The techniques include an apparatus for sideband signaling including a first serial sideband link module and a second serial sideband link module. The first serial sideband link module is to propagate packets from an upstream port to a downstream port via a first signaling lane, and the second serial sideband link module is to propagate packets from the downstream port to the upstream port via a second signaling lane.