Method and system for supporting hardware acceleration for iSCSI read and write operations and iSCSI chimney
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United States of America Patent
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May 7, 2013
Grant Date -
Jul 28, 2011
app pub date -
Apr 5, 2011
filing date -
Mar 10, 2004
priority date (Note) -
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Abstract
Certain aspects of a method and system for supporting hardware acceleration for iSCSI read and write operations via a TCP offload engine may comprise pre-registering at least one buffer with hardware. An iSCSI command may be received from an initiator. An initiator test tag value, a data sequence value and/or a buffer offset value of an iSCSI buffer may be compared with the pre-registered buffer. Data may be fetched from the pre-registered buffer based on comparing the initiator test tag value, the data sequence value and/or the buffer offset value of the iSCSI buffer with the pre-registered buffer. The fetched data may be zero copied from the pre-registered buffer to the initiator.
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