DISTRIBUTED QUEUE PAIR STATE ON A HOST CHANNEL ADAPTER

摘要

A method for managing a distributed cache of a host channel adapter (HCA) that includes receiving a work request including a QP number, determining that a QP state identified by the QP number is not in the distributed cache, retrieving the QP state from main memory, and identifying a first portion and a second portion of the QP state. The method further includes storing the first portion into a first entry of a first sub-cache block associated with the first module, where the first entry is identified by a QP index number, storing the second portion into a second entry of a second sub-cache block associated with the second module, where the second entry is identified by the QP index number; and returning the QP index number of the QP state to the first module and the second module.

主权项

1. A method for managing a distributed cache of a host channel adapter (HCA), comprising:
receiving a work request comprising a QP number; determining that a QP state identified by the QP number is not in the distributed cache,
wherein the QP state comprises a plurality of data fields, andwherein the distributed cache comprises a plurality of sub-cache blocks; retrieving the QP state from main memory; identifying a first portion and a second portion of the QP state,
wherein the first portion comprises a first subset of the plurality of data fields required by a first module of the HCA, andwherein the second portion comprises a second subset of the plurality of data fields required by a second module of the HCA; storing the first portion into a first entry of a first sub-cache block associated with the first module, wherein the first entry is identified by a QP index number; storing the second portion into a second entry of a second sub-cache block associated with the second module, wherein the second entry is identified by the QP index number; and returning the QP index number of the QP state to the first module and the second module.