Method and system for Infiniband host channel adapter multicast packet replication mechanism
US8937949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2012 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Mar 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/358
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for multicast replication by a host channel adapter (HCA) involving receiving a multicast packet, by a receive pipeline for processing packets of the HCA, storing, in a payload RAM within the HCA, a multicast packet payload corresponding to a data portion of the multicast packet, identifying, from a multicast header of the multicast packet, a plurality of destination underlying functions and a plurality of corresponding destination QPs to which the multicast packet is directed, wherein each destination underlying function of corresponds to a virtual machine located on a host, identifying, from the multicast header, information to be replicated for each multicast packet destination, injecting, by the HCA, a number of multicast packet descriptors corresponding to a number of the corresponding destination QPs into the receive pipeline of the HCA, and copying, from the payload RAM, the multicast packet payload to each of the corresponding destination QPs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.