发明名称 |
TECHNIQUES FOR WRITE-AFTER-WRITE ORDERING IN A COHERENCY MANAGED PROCESSOR SYSTEM THAT EMPLOYS A COMMAND PIPELINE |
摘要 |
A technique for maintaining input/output (I/O) command ordering on a bus includes assigning a channel identifier to I/O commands of an I/O stream. In this case, the channel identifier indicates the I/O commands belong to the I/O stream. A command location indicator is assigned to each of the I/O commands. The command location indicator provides an indication of which one of the I/O commands is a start command in the I/O stream and which of the I/O commands are continue commands in the I/O stream. The I/O commands are issued in a desired completion order. When a first one of the I/O commands does not complete successfully, the I/O commands in the I/O stream are reissued on the bus starting at the first one of the I/O commands that did not complete successfully.
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申请公布号 |
US2010262720(A1) |
申请公布日期 |
2010.10.14 |
申请号 |
US20090420889 |
申请日期 |
2009.04.09 |
申请人 |
INTERNATIONAL BUISNESS MACHINES CORPORATION |
发明人 |
DALY, JR. GEORGE WILLIAM;GUTHRIE GUY LYNN;LEAVENS ROSS BOYD;MCDONALD JOSEPH GERALD;SIEGEL MICHAEL STEVEN;STARKE WILLIAM JOHN;WILLIAMS DEREK EDWARD |
分类号 |
G06F3/00 |
主分类号 |
G06F3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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