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公开(公告)号：EP0205948A2
公开(公告)日：1986-12-30
申请号：EP86107015
申请日：1986-05-23
Applicant: IBM
Inventor： HAMMER WILLIAM ELDER , SCHWANE WALTER HENRY , ZIECINA FREDERICK JOSEPH
Abstract: A data management mechanism for a processor system provides for management of data with minimum data transfer between processes executing work requests. Each process has storage areas for storing data associated with work requests. The data is described with descriptor elements in the work requests which indicate the location and length of segments of the data. Data is transferred to a process only if it is required for execu-tion of a work request. Further work requests can be generated by a process executing a work request which reference the data without the process actually receiving the data. The segments of data may reside in storage areas of different processors with the descriptor elements of a work request defining a logical data stream.
Abstract translation: 用于处理器系统的数据管理机制提供了在执行工作请求的进程之间具有最小数据传输的数据管理。 每个进程都有用于存储与工作请求相关联的数据的存储区域。 用工作请求中的描述符元素描述数据，这些元素指示数据段的位置和长度。 只有执行工作请求需要数据才会传送到进程。 进一步的工作请求可以由执行工作请求的进程生成，该进程引用数据，而不用实际接收数据。 数据段可以驻留在不同处理器的存储区域中，工作请求的描述符元素定义逻辑数据流。
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公开(公告)号：EP0205946A2
公开(公告)日：1986-12-30
申请号：EP86107013
申请日：1986-05-23
Applicant: IBM
Inventor： HAMMER WILLIAM ELDER , SCHWANE WALTER HENRY , ZIECINA FREDERICK JOSEPH
IPC: G06F9/46 , G06F13/00 , G06F15/16 , G06F15/177 , H04L29/00
Abstract: 0 An interprocess data transfer facility provides transfer of data between two processes. Work requests are represented by notes that are placed on a queue of a server process for performing the work. The requestor process which created a.work request does not trans-fer the work request from storage it controls until requested by the server. The actual transfer of the work request occurs without interaction of the requestor. The use of notes which represent the work requests permits complex queue- ing of notes and hence handling of the requests in the order desired by the server.
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公开(公告)号：DE3484727D1
公开(公告)日：1991-07-25
申请号：DE3484727
申请日：1984-08-01
Applicant: IBM
Inventor： HAMMER WILLIAM ELDER , KOSSMAN HAROLD FRANCIS
IPC: G06F13/00 , G06F11/20 , G06F13/40 , G06F15/16 , G06F15/177
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公开(公告)号：DE3689990T2
公开(公告)日：1995-03-09
申请号：DE3689990
申请日：1986-05-23
Applicant: IBM
Inventor： HAMMER WILLIAM ELDER , SCHWANE WALTER HENRY , ZIECINA FREDERICK JOSEPH
IPC: G06F9/46 , G06F13/00 , G06F15/16 , G06F15/177 , H04L29/00
Abstract: 0 An interprocess data transfer facility provides transfer of data between two processes. Work requests are represented by notes that are placed on a queue of a server process for performing the work. The requestor process which created a.work request does not trans-fer the work request from storage it controls until requested by the server. The actual transfer of the work request occurs without interaction of the requestor. The use of notes which represent the work requests permits complex queue- ing of notes and hence handling of the requests in the order desired by the server.
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公开(公告)号：DE3851507D1
公开(公告)日：1994-10-20
申请号：DE3851507
申请日：1988-09-27
Applicant: IBM
Inventor： HAMMER WILLIAM ELDER , SCHWANE WALTER HENRY , ZIECINA FREDERICK JOSEPH
IPC: G06F9/46 , G06F9/50 , G06F9/54 , G06F15/16 , G06F15/177
Abstract: The flow of work requests in a server driven process to process communication environment is described. Logical connections between processes and bus managers interfacing bus units (50, 52) to an I/O bus (54) are assigned to connection groups for management by the bus managers. Each bus unit has its own connection groups for the logical connections. Bus unit resources are assigned to each connection group based on performance factors, and a series of bus unit messages are used to control the flow of work so that a group which has no more resources will not accept further work requests. The originator of the work requests will resequence rejected work requests and resend them when the connection group has freed up resources. A further mechanism is provided to facilitate work consistent with the server driven architecture when bus units do not have adequate DMA capabilities. Two ways of reversing control of transfer of work requests and data so that the server need not have master DMA capability are presented. Management of storage in a remote processor is used to transfer work and its associated data into storage accessible by a bus unit with slave DMA capability. The slave DMA bus unit then transfers the information into storage it manages. In another way of reversing the flow, a bus unit message is used to make the original server a requestor. The bus unit message contains information which varies the request sent by the requestor. In this manner, the server, which was the original requestor transfers information using its master DMA capability flow.
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Patent Agency Ranking
公开(公告)号：AU5188079A
公开(公告)日：1980-05-15
申请号：AU5188079
申请日：1979-10-17
Applicant: IBM
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公开(公告)号：DE3852378T2
公开(公告)日：1995-05-24
申请号：DE3852378
申请日：1988-09-13
Applicant: IBM
Inventor： BATRA SURINDER PAUL , HAMMER WILLIAM ELDER , MARQUART DAVID WAYNE , SCHWANE WALTER HENRY , ZIECINA FREDERICK JOSEPH , LUSHINSKY GENE ARTHUR
IPC: G06F13/28 , G06F13/42 , G06F15/16 , G06F15/177 , G06F9/46
Abstract: The flow of work requests in a server driven process to process communication environment is described. Logical connections between processes and bus managers interfacing bus units (50, 52) to an I/O bus (54) are assigned to connection groups (86, 88) for management by the bus managers. Each bus unit has its own connection groups for the logical connections. Bus unit resources are assigned to each connection group based on performance factors, and a series of bus unit messages are used to control the flow of work so that a group which has no more resources will not accept further work requests. The originator of the work requests will resequence rejected work requests and resend them when the connection group has freed up resources. A further mechanism is provided to facilitate work consistent with the server driven architecture when bus units do not have adequate DMA capabilities. Two ways of reversing control of transfer of work requests and data so that the server need not have master DMA capability are presented. Management of storage in a remote processor is used to transfer work and its associated data into storage accessible by a bus unit with slave DMA capability. The slave DMA bus unit then transfers the information into storage is manages. In another way of reversing the flow, a bus unit message is used to make the original server a requestor. The bus unit message contains information which varies the request sent by the requestor. In this manner, the server, which was the original requestor transfers information using its master DMA capability flow.
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公开(公告)号：DE3689990D1
公开(公告)日：1994-09-01
申请号：DE3689990
申请日：1986-05-23
Applicant: IBM
Inventor： HAMMER WILLIAM ELDER , SCHWANE WALTER HENRY , ZIECINA FREDERICK JOSEPH
IPC: G06F9/46 , G06F13/00 , G06F15/16 , G06F15/177 , H04L29/00
Abstract: 0 An interprocess data transfer facility provides transfer of data between two processes. Work requests are represented by notes that are placed on a queue of a server process for performing the work. The requestor process which created a.work request does not trans-fer the work request from storage it controls until requested by the server. The actual transfer of the work request occurs without interaction of the requestor. The use of notes which represent the work requests permits complex queue- ing of notes and hence handling of the requests in the order desired by the server.
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公开(公告)号：DE3689991T2
公开(公告)日：1995-03-09
申请号：DE3689991
申请日：1986-05-23
Applicant: IBM
Inventor： HAMMER WILLIAM ELDER , SCHWANE WALTER HENRY , ZIECINA FREDERICK JOSEPH
Abstract: A data management mechanism for a processor system provides for management of data with minimum data transfer between processes executing work requests. Each process has storage areas for storing data associated with work requests. The data is described with descriptor elements in the work requests which indicate the location and length of segments of the data. Data is transferred to a process only if it is required for execu-tion of a work request. Further work requests can be generated by a process executing a work request which reference the data without the process actually receiving the data. The segments of data may reside in storage areas of different processors with the descriptor elements of a work request defining a logical data stream.
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公开(公告)号：HK15195A
公开(公告)日：1995-02-10
申请号：HK15195
申请日：1995-02-06
Applicant: IBM
Inventor： HAMMER WILLIAM ELDER , SCHWANE WALTER HENRY , ZIECINA FREDERICK JOSPEH
IPC: G06F9/46 , G06F9/50 , G06F9/54 , G06F15/16 , G06F15/177
Abstract: The flow of work requests in a server driven process to process communication environment is described. Logical connections between processes and bus managers interfacing bus units (50, 52) to an I/O bus (54) are assigned to connection groups for management by the bus managers. Each bus unit has its own connection groups for the logical connections. Bus unit resources are assigned to each connection group based on performance factors, and a series of bus unit messages are used to control the flow of work so that a group which has no more resources will not accept further work requests. The originator of the work requests will resequence rejected work requests and resend them when the connection group has freed up resources. A further mechanism is provided to facilitate work consistent with the server driven architecture when bus units do not have adequate DMA capabilities. Two ways of reversing control of transfer of work requests and data so that the server need not have master DMA capability are presented. Management of storage in a remote processor is used to transfer work and its associated data into storage accessible by a bus unit with slave DMA capability. The slave DMA bus unit then transfers the information into storage it manages. In another way of reversing the flow, a bus unit message is used to make the original server a requestor. The bus unit message contains information which varies the request sent by the requestor. In this manner, the server, which was the original requestor transfers information using its master DMA capability flow.
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