Patents by Inventor Haluk Aytac

Haluk Aytac has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Zero-copy direct memory access (DMA) network-attached storage (NAS) file system block writing
    Patent number: 9092426
    Abstract: A method is provided for a network-attached storage (NAS) server to directly write data to a disk or block device within a storage subsystem. A NAS server Ethernet interface receives a file, and writes the file data into kernel space as PDU segments. A TCP/IP stack maps the file data in kernel space RAM as sequentially ordered segments. The NAS/CIFS server application sends a call specifying file storage data. A zero-copy DMA application receives the call, maps a file offset to a Logical Block Address (LBA) in the block device, and requests that the block device DMA application transfer the file data. Without rewriting the file data in the system RAM, the block driver DMA application transfers the file data, in units of file system blocks, directly from kernel space RAM to the block device, with each file system block written in a single write operation.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: July 28, 2015
    Assignee: Applied Micro Circuts Corporation
    Inventors: Pravin M. Bathija, Haluk Aytac