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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BROADCOM CORPORATIONIRVINE, CA9263

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Elzur, Uri Irvine, CA 138 1338
Fan, Kan Frankie Diamond Bar, CA 58 242
McDaniel, Scott Simi Valley, CA 44 282

Cited Art Landscape

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5,150,361 Energy saving protocol for a TDM radio 136 1991
5,249,302 Mixed-mode transceiver system 93 1991
5,152,006 Receiver controller method and apparatus 66 1991
5,128,938 Energy saving protocol for a communication system 243 1991
5,265,270 Method and apparatus for providing power conservation in a communication system 104 1991
5,373,506 Method and apparatus for paging in a communication system 71 1993
5,361,397 Communication device and system capable of automatic programmable energizing 97 1993
5,584,048 Beacon based packet radio standby energy saver 104 1994
 
QIMONDA AG (1)
5,455,527 CMOS buffer circuit with controlled current source 29 1993
 
DIGITAL EQUIPMENT CORPORATION (2)
4,721,866 CMOS current switching circuit 28 1985
5,079,452 High speed ECL latch with clock enable 39 1990
 
THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA (1)
5,744,366 Mesoscale devices and methods for analysis of motile cells 198 1994
 
INTEL-NE, INC. (2)
7,149,819 Work queue to TCP/IP translation 46 2003
* 7,782,905 Apparatus and method for stateless CRC calculation 12 2006
 
EMC CORPORATION (2)
5,619,497 Method and apparatus for reordering frames 198 1996
5,831,985 Method and apparatus for controlling concurrent data transmission from multiple sources in a channel communication system 93 1997
 
INTEL CORPORATION (19)
4,727,309 Current difference current source 53 1987
5,304,869 BiCMOS digital amplifier 32 1992
5,291,516 Dual mode transmitter and receiver 182 1992
5,802,287 Single chip universal protocol multi-function ATM network interface 231 1995
5,829,025 Computer system and method of allocating cache memories in a multilevel cache hierarchy utilizing a locality hint within an instruction 65 1996
6,014,041 Differential current switch logic gate 46 1997
6,373,846 Single chip networking device with enhanced memory access co-processor 45 1998
6,202,129 Shared cache structure for temporal and non-temporal information using indicative bits 58 1998
6,081,162 Robust method and apparatus for providing a digital single-ended output from a differential input 53 1999
6,788,704 Network adapter with TCP windowing support 75 1999
6,438,651 Method, system, and program for managing requests to a cache using flags to queue and dequeue data in a buffer 52 1999
6,564,267 Network adapter with large frame transfer emulation 78 1999
7,644,188 Distributing tasks in data communications 30 2002
7,400,639 Method, system, and article of manufacture for utilizing host memory from an offload adapter 26 2003
* 7,349,999 Method, system, and program for managing data read operations on network controller with offloading functions 10 2003
2005/0216,597 Message context based TCP transmission 53 2004
* 2005/0286,560 Processing receive protocol data units 10 2004
* 2007/0074,092 Techniques to determine integrity of information 10 2005
* 2007/0127,525 TECHNIQUES TO TRANSMIT NETWORK PROTOCOL UNITS 4 2006
 
ALACRITECH, INC. (4)
6,938,092 TCP offload device that load balances and fails-over between aggregated ports having different MAC addresses 163 2002
2003/0140,124 TCP offload device that load balances and fails-over between aggregated ports having different MAC addresses 92 2002
* 7,185,266 Network interface device for error detection using partial CRCS of variable length message portions 141 2003
* 2004/0158,793 Network interface device for error detection using partical CRCS of variable length message portions 84 2003
 
Phyle Industries Limited (1)
4,969,206 Portable data collection device with RF transmission 89 1989
 
MITSUBISHI DENKI KABUSHIKI KAISHA (3)
5,033,109 Pocket transceiver 71 1989
5,892,382 Current mode logic circuit, source follower circuit and flip flop circuit 53 1997
6,104,214 Current mode logic circuit, source follower circuit, and flip flop circuit 38 1999
 
TECHNIKU INCORPORATED (2)
5,081,402 Low power consumption wireless data transmission and control system 78 1991
5,134,347 Low power consumption wireless data transmission and control system 81 1991
 
ARM FINANCE OVERSEAS LIMITED (1)
6,681,283 Coherent data apparatus for an on-chip split transaction system bus 39 1999
 
MCKESSON INFORMATION SOLUTIONS INC. (1)
4,850,009 Portable handheld terminal including optical bar code reader and electromagnetic transceiver means for interactive wireless communication with a base communications station 400 1988
 
STMICROELECTRONICS, INC. (1)
6,025,746 ESD protection circuits 27 1996
 
G2 Networks, Inc. (1)
6,002,279 Clock recovery circuit 101 1997
 
MCKESSON INFORMATION SOLUTIONS LLC (1)
4,916,441 Portable handheld terminal 762 1988
 
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. (2)
5,887,187 Single chip network adapter apparatus 169 1997
6,008,670 Differential CMOS logic family 29 1997
 
VOICE SIGNALS LLC (1)
5,196,805 Distributed differential amplifier arrangement 44 1992
 
INTERSIL AMERICAS INC. (1)
2002/0089,927 System and method for synchronizing data trasnmission across a variable delay interface 49 2001
 
TRANE INTERNATIONAL INC. (1)
5,390,206 Wireless communication system for air distribution system 156 1991
 
JUNIPER NETWORKS, INC. (1)
6,865,158 ATM switch with OAM functions 28 2000
 
FREESCALE SEMICONDUCTOR, INC. (1)
5,041,740 Parallel clocked latch 39 1990
 
Stolar, Inc. (1)
5,087,099 Long range multiple point wireless control and monitoring system 75 1990
 
FAIRCHILD SEMICONDUCTOR CORPORATION (1)
5,689,644 Network switch with arbitration sytem 66 1996
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
5,329,192 High speed CMOS current switching circuit 22 1993
 
MOTOROLA SOLUTIONS, INC. (1)
5,293,639 Reduction of power consumption in a portable communication unit 89 1993
 
RARITAN COMPUTER, INC. (1)
5,432,932 System and method for dynamically controlling remote processes from a performance monitor 193 1992
 
NEC CORPORATION (10)
4,794,649 Radio communication system with power saving disablement prior to call handling processes 126 1987
4,977,611 Portable radio apparatus having battery saved channel scanning function 89 1988
5,031,231 Mobile telephone station with power saving circuit 79 1989
5,296,849 Pager receiver for enabling to omit power-on signal for receiving synchronization code in pager signal 67 1991
5,510,734 High speed comparator having two differential amplifier stages and latch stage 47 1995
5,583,456 Differentially coupled AND/NAND and XOR/XNOR circuitry 32 1995
5,550,491 Current-mode logic circuit 23 1995
5,844,437 Differential flipflop circuit operating with a low voltage 37 1997
6,385,201 Topology aggregation using parameter obtained by internodal negotiation 92 1998
6,470,029 Bandwidth control method in a network system 39 1998
 
AT&T Bell Laboratories (1)
5,289,055 Digital ECL bipolar logic gates suitable for low-voltage operation 44 1992
 
ARCXEL TECHNOLOGIES, INC. (1)
6,118,776 Methods and apparatus for fiber channel interconnection of private loop devices 199 1997
 
COREEL MICROSYSTEMS (1)
6,349,098 Method and apparatus for forming a virtual circuit 59 1998
 
MICROSOFT TECHNOLOGY LICENSING, LLC (4)
6,141,705 System for querying a peripheral device to determine its processing capabilities and then offloading specific processing tasks from a host to the peripheral device when needed 170 1998
6,904,519 Method and computer program product for offloading processing tasks from software to hardware 83 2000
7,007,103 Method to offload a network stack 74 2002
7,181,531 Method to synchronize and upload an offloaded network stack connection with a network stack 49 2002
 
NEC ELECTRONICS CORPORATION (1)
5,877,642 Latch circuit for receiving small amplitude signals 41 1996
 
QUALCOMM INCORPORATED (2)
6,037,841 Impedance matched CMOS transimpedance amplifier for high-speed fiber optic communications 61 1998
6,845,403 System and method for storage virtualization 81 2001
 
GENERAL ELECTRIC COMPANY (1)
4,449,248 Battery saving radio circuit and system 190 1982
 
VERIZON PATENT AND LICENSING INC. (1)
2001/0026,553 Intelligent policy server system and method for bandwidth control in an ATM network 57 2001
 
PROTOCOL ACQUISITION, LLC (1)
7,376,755 TCP/IP processor and engine using RDMA 90 2003
 
MCDATA CORPORATION (1)
5,502,719 Path allocation system and method having double link list queues implemented with a digital signal processor (DSP) for a high performance fiber optic switch 84 1994
 
TECHNOPHONE LIMITED (1)
5,839,051 Host radio telephone to directly access a handset NAM through a connecter without requiring the handset controller to be employed 43 1997
 
NIPPON PRECISION CIRCUITS INC. (1)
6,218,878 D-type flip-flop circiut 23 1998
 
Avicom International, Inc. (1)
5,055,660 Portable transaction monitoring unit for transaction monitoring and security control systems 150 1990
 
ADC TELECOMMUNICATIONS, INC. (1)
5,533,029 Cellular digital packet data mobile data base station 128 1995
 
AIDENTITY MATRIX ENTERTAINMENT, INC. (1)
6,631,351 Smart toys 55 2000
 
RPX CORPORATION (2)
5,600,267 Apparatus for a programmable CML to CMOS translator for power/speed adjustment 54 1995
5,640,356 Two-stage differential sense amplifier with positive feedback in the first and second stages 42 1995
 
CITRIX SYSTEMS, INC. (1)
5,826,027 Method for supporting an extensible and dynamically bindable protocol stack in a distrubited process system 187 1995
 
UNISYS CORPORATION (2)
5,430,845 Peripheral device interface for dynamically selecting boot disk device driver 146 1992
6,345,301 Split data path distributed network protocol 111 1999
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
5,247,656 Method and apparatus for controlling a clock signal 43 1990
 
AT&T CORP. (1)
5,406,615 Multi-band wireless radiotelephone operative in a plurality of air interface of differing wireless communications systems 251 1993
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

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 1 2006
 
SILICON LABORATORIES INC. (1)
8,904,076 Coder with snoop mode 0 2012
* Cited By Examiner

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