US Patent No: 8,180,928

Number of patents in Portfolio can not be more than 2000

Method and system for supporting read operations with CRC for iSCSI and iSCSI chimney

ALSO PUBLISHED AS: 7996573, 20060015655

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Certain embodiments of the invention may be found in a method and system for performing SCSI read operations with a CRC via a TCP offload engine. Aspects of the method may comprise receiving an iSCSI read command from an initiator. Data may be fetched from a buffer based on the received iSCSI read command. The fetched data may be zero copied from the buffer to the initiator and a TCP sequence may be retransmitted to the initiator. A digest value may be calculated, which may be communicated to the initiator. An accumulated digest value stored in a temporary buffer may be utilized to calculate a final digest value, if the buffer is posted. The retransmitted TCP sequence may be processed and the fetched data may be zero copied into an iSCSI buffer, if the buffer is posted. The calculated final digest value may be communicated to the initiator.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BROADCOM CORPORATIONIRVINE, CA9252

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Elzur, Uri Irvine, CA 135 1176
Fan, Kan Frankie Diamond Bar, CA 58 220
McDaniel, Scott Simi Valley, CA 44 254

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Other [Check patent profile for assignment information] (11)
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2002/0103,988 Microprocessor with integrated interfaces to system memory and multiplexed input/output bus 85 2002
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2003/0108,061 Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost 24 2003
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2008/0298,369 SYSTEM AND METHOD FOR HANDLING OUT-OF-ORDER FRAMES 15 2008

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
NVIDIA CORPORATION (1)
8,572,289 System, method and computer program product for stateless offloading of upper level network protocol operations 0 2006

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