发明名称 |
System for dynamically configuring I/O device adapters where a function configuration register contains ready/not ready flags corresponding to each I/O device adapter |
摘要 |
An apparatus, system and method permitting dynamic configuration of I/O device adapters connected to a bus utilizes a function configuration register to store a READY/NOT READY status for each of the I/O device adapters. Upon the occurrence of a reset condition, dynamic configuration decision logic detects which I/O device adapters are connected to the bus, determines configuration parameters for each connected I/O device adapter, initializes the configuration space for each connected I/O device adapter, and then sets a corresponding flag in the function configuration register to indicate ready status. An I/O device driver interrupts a configuration process to examine the function configuration register. If ready status can be confirmed from this function configuration register within a time out period, then the configuration process may proceed; otherwise, a device error recovery process is initiated.
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申请公布号 |
US6023736(A) |
申请公布日期 |
2000.02.08 |
申请号 |
US19970995157 |
申请日期 |
1997.12.19 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LAMBETH, SHAWN MICHAEL;GRAHAM, CHARLES SCOTT;MOERTL, DANIEL FRANK;MOVALL, PAUL EDWARD;NORDSTROM, GREGORY MICHAEL |
分类号 |
G06F13/10;(IPC1-7):G06F13/10 |
主分类号 |
G06F13/10 |
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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