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:
Mar. 19, 2009
Derek Rohde, Auburn, CA (US);
Michael I. Thompson, Colfax, CA (US);
Derek Rohde, Auburn, CA (US);
Michael I. Thompson, Colfax, CA (US);
QLOGIC, Corporation, Aliso Viejo, CA (US);
Abstract
A method and system for transferring iSCSI protocol data units ('PDUs') to a host system is provided. The system includes a host bus adapter with a TCP/IP offload engine. The HBA includes, a direct memory access engine operationally coupled to a pool of small buffers and a pool of large buffers, wherein an incoming PDU size is compared to the size of a small buffer and if the PDU fits in the small buffer, then the PDU is placed in the small buffer. If the incoming PDU size is compared to a large buffer size and if the incoming PDU size is less than the large buffer size then the incoming PDU is placed in the large buffer. If the coming PDU size is greater than a large buffer, then the incoming PDU is placed is more than one large buffer and a pointer to a list of large buffers storing the incoming PDU is placed in a small buffer.