Node Controller and Method for Responding to Request Based on Node Controller

摘要

A node controller-based request responding method and node controller, where the method includes receiving, by a first node controller, a first packet, acquiring an information directory, and querying, in the information directory, whether a memory address requested by the first packet is occupied by a second node controller, and when the memory address requested by the first packet is occupied by the second node controller, querying node presence information to determine whether the second node controller exists, and when it is determined that the second node controller does not exist, generating and sending an invalid response packet.

主权项

1. A node controller-based request responding method, wherein the method comprises:
receiving, by a first node controller, a first packet, wherein the first packet is a snoop packet from an interface of a central processing unit (CPU) or a request packet from an interface of another node controller; acquiring an information directory; querying, in the information directory, whether a memory address requested by the first packet is occupied by a second node controller, wherein the information directory comprises information about a memory address of a current node controller being occupied by another node controller; querying node presence information to determine whether the second node controller exists when the memory address requested by the first packet is occupied by the second node controller; and generating and sending an invalid response packet when the second node controller does not exist, wherein a destination node identifier (DNID) of the invalid response packet is a source node identifier (SNID) of the first packet, and wherein an SNID of the invalid response packet is a DNID of the first packet.