发明授权
US08438265B2 Method of offloading iSCSI PDU corruption-detection digest generation from a host processing unit, and related iSCSI offload engine
失效
从主机处理单元卸载iSCSI PDU损坏检测摘要生成的方法以及相关的iSCSI卸载引擎
- 专利标题： Method of offloading iSCSI PDU corruption-detection digest generation from a host processing unit, and related iSCSI offload engine
- 专利标题（中）： 从主机处理单元卸载iSCSI PDU损坏检测摘要生成的方法以及相关的iSCSI卸载引擎
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申请号： US11163958申请日： 2005-11-04
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公开(公告)号： US08438265B2公开(公告)日： 2013-05-07
- 发明人: Giora Biran , Vadim Makhervaks , Leah Shalev
- 申请人： Giora Biran , Vadim Makhervaks , Leah Shalev
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Scully, Scott, Murphy & Presser, P.C.
- 代理商 Joseph P. Abate, Esq.
- 优先权： EP04300757 20041104
- 主分类号： G06F15/173
- IPC分类号： G06F15/173
摘要：
A method of offloading, from a host data processing unit (205), the generation of data corruption-detection digests for iSCSI PDUs to be transmitted as TCP segments over respective TCP connections. An iSCSI layer processing software (310) executed by the host data processing unit provides a command descriptor list (320) containing command descriptors adapted to identify portions of at least one iSCSI PDU to be transmitted, and data corruption-detection digest descriptors (CRC DESC(PDUa); CRC DESC(PDUb)), each one associated with a respective PDU data corruption-detection digest. An iSCSI processing offload engine (223) transmits the iSCSI PDU over the respective TCP connection, based on the descriptors in the command descriptor list; during the transmission, the iSCSI PDU data corruption-detection digest are calculated, and the calculated data corruption-detection digest is saved in the corresponding data corruption-detection digest descriptor in the command descriptor list.
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