Jayaram M Bhat

US Patent:

20140282551, Sep 18, 2014

Filed:

Mar 13, 2013

Appl. No.:

13/802413

Inventors:

- Costa Mesa CA, US
Chaitanya TUMULURI - Mountain View CA, US
Jayaram K. BHAT - Cedar Park TX, US

Assignee:

Emulex Design & Manufacturing Corporation - Costa Mesa CA

International Classification:

G06F 9/46

US Classification:

718100

Abstract:

Network virtualization can be provided via network I/O interfaces, which may be partially or fully aware of the virtualization. Network virtualization can be reflected in the use of a first header and an additional header(s) for a data frame. A partially-aware transmit example can gather together data frame components, including its additional header(s), via a work queue entry. A fully-aware transmit example can refer to a transmit-side table to gather its additional header(s) and can track the state of its additional header(s) stored in a cache. A partially-aware receive example can handle an additional header(s), e.g., by writing it to host-memory. A fully-aware receive example can determine values from multiple headers (including its additional header(s)) to further determine where to write a data payload to host-memory. The examples can relieve a host's hypervisor from performing all the network virtualization processing. The fully-aware examples can incorporate JOY techniques.