The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2011
Filed:
Dec. 22, 2009
Asgeir Thor Eiriksson, Sunnyvale, CA (US);
Dimitrios Michailidis, Sunnyvale, CA (US);
Wael Noureddine, Mountain View, CA (US);
Asgeir Thor Eiriksson, Sunnyvale, CA (US);
Dimitrios Michailidis, Sunnyvale, CA (US);
Wael Noureddine, Mountain View, CA (US);
Chelsio Communications, Inc., Sunnyvale, CA (US);
Abstract
The present invention is in the field of virtualization of Network Interface Cards and Controllers (NIC) that connect to for example a host computer that can have multiple functions and OS's (referred to as guest functions and guest-OS's) running on it simultaneously and, in particular, relates to the virtualization of the operation of a single NIC such that it can be used simultaneously by multiple guests in such a manner that memory references due to the network traffic originating from and destined to a particular guest is kept separate from other network traffic, and that allows the Media Access Controller (MAC) within the NIC to operate such that it only accepts network packets that are destined to one of the guest-functions or guest-OS's, and the MAC is not required to operate in promiscuous mode where it accept all incoming packets in order to implement the virtualization features.