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:
Jan. 05, 2010
Filed:
Nov. 12, 2004
Alexander Nicolson, Iv, Costa Mesa, CA (US);
Gregory John Scherer, Costa Mesa, CA (US);
Alexander Nicolson, IV, Costa Mesa, CA (US);
Gregory John Scherer, Costa Mesa, CA (US);
Emulex Design & Manufacturing Corporation, Costa Mesa, CA (US);
Abstract
A 32-word command IOCB format is disclosed. A conventional 8-word format is supported, although in both cases 32-word command IOCBs are used. When the conventional 8-word format is used, the host sets the LE bit=1 and writes a conventional 8-word command IOCB into words-of the 32-word command IOCB. The firmware performs a DMA operation and reads the LE bit. With the LE bit=1, the firmware knows to read only words-. When the new 32-word format is used, the host sets the LE bit=0 and writes a 32-word IOCB command into the 32-word command IOCB, including command and response buffer pointers, one or more data buffer pointers, and perhaps the command buffer. The firmware performs a DMA operation and reads the LE bit. With the LE bit=0, the firmware knows to read all 32 words of the command IOCB.