Avago Technologies General IP (singapore) Pte. Ltd.

Hewlett-packard Development Company, L.p.

Lsi Corporation

James K Yu

Gary J Piccirillo

Timothy E Hoglund

Peter B Chon

Horia Cristian Simionescu

Phillip M Jones

Kenneth A Jansen

William J Walker

Paras A Shah

Robert L Sheffield

David M Olson

Vasileios Balabanos

Andrew D Olsen

Disclosed is a system and method for using a programmable sequencer to produce a required command for a particular standard, or format, being used by the PCIe disk drive. A PCIe disk drive may support a different standard, or format. A mix of any number of different standards, or formats, is permitted in the system and method. For each message, a different set of instructions can be selected for the conversion process.

Method and system for programmable sequencer for processing I/O for various PCIe disk drives

Methods for managing region lock in a storage controller are disclosed. Upon receiving in a hardware based region lock management circuit a data request, the region lock management circuit determines a lock type of a region lock specified in the data request and conditionally creates a region lock data structure, wherein the region lock data structure is conditionally created based on the type of the region lock requested. The region lock management circuit further determines whether the data request is requesting access to at least a portion of a locked data region and the lock type of the locked data region. If the data request is requesting access to at least a portion of the locked data region and the lock type of the locked data region permits firmware diversion, the region lock management circuit diverts the data request to a storage controller firmware processor for further processing.

Hardware based cache scan with divert node handling

Disclosed is a power isolation and backup system. When a power fail condition is detected, temporary storage is flushed to an SDRAM. After the flush, interfaces are halted, and power is removed from most of the chip except the SDRAM subsystem. The SDRAM subsystem copies data from an SDRAM to a flash memory. On the way, the data may be encrypted, and/or a data integrity signature calculated. To restore data, the SDRAM subsystem copies data from the flash memory to the SDRAM. On the way, the data being restored may be decrypted, and/or a data integrity signature checked.

Power isolation for memory backup

Data manipulation on power fail

Disclosed is a storage device interface. The storage device interface includes a plurality of PCIe device request engines. These PCIe device request engines receive I/O commands formatted for a respective one of a plurality of PCIe storage device communication standards. The storage device interface also includes a plurality of PCIe device completion engines. These PCIe device completion engines receive notifications of command completions from a plurality of PCIe storage devices that communicate using the aforementioned plurality of PCIe storage device communication standards. These notifications are validated. If an error is detected, processing of notifications of command completions associated with that device are blocked until the error is resolved. The plurality of PCIe device request engines and the PCIe device completion engines operate concurrently to process received I/O commands and received command completions.

Interface for heterogeneous PCI-e storage devices

A system comprises a plurality of nodes coupled together via a switching device. Each node comprises a processor coupled to a memory. Migration logic in the switching device is configured to migrate segments of each memory to the switching device.

Method and system for migrating memory segments

Growing community of inventors

Houston, TX, United States of America

James K Yu