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

IPC: G06F12/00 ,  G06F9/46 ,  G06F13/00 ,  G06F15/16 ,  G06F15/177 ,  H04L29/00

CPC classification number: G06F9/544 ,  H04L29/00

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。

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

CPC classification number: G06F9/546 ,  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.

公开(公告)号：EP0205945A2

公开(公告)日：1986-12-30

申请号：EP86107010

申请日：1986-05-23

Applicant: IBM

Inventor： SCHWANE WALTER HENRY ,  ZIECINA FREDERICK JOSEPH

IPC: G06F9/46 ,  G06F13/00 ,  G06F15/16 ,  G06F15/177 ,  H04L29/00

CPC classification number: G06F15/161 ,  G06F9/544 ,  H04L29/00

Abstract: An interprocess communication facility in a processor system provides for communication of data between at least two processes. The facility supports a plurality of different data transfer modes which are provided by storage management services of the processor or processors. A process interface provides a common interface for each communicating process to select data transfer modes independently of the data transfer mode chosen by the other communicating process. A data access control function is coupled to the process interface and to the storage management services. The data access control function controls the use of the storage management services as a function of the transfer modes chosen by the communicating processes. It is transparent to the processes as to which transfer mode was chosen by each other.

Abstract translation: 处理器系统中的进程间通信设备提供至少两个进程之间的数据通信。 该设施支持由处理器或处理器的存储管理服务提供的多种不同的数据传输模式。 过程接口为每个通信过程提供公共接口，以独立于由另一通信过程选择的数据传输模式选择数据传输模式。 数据访问控制功能耦合到进程接口和存储管理服务。 数据访问控制功能根据通信过程选择的传输模式控制存储管理服务的使用。 对于相互选择哪种传输模式的过程是透明的。

公开(公告)号：JPS61289458A

公开(公告)日：1986-12-19

申请号：JP8841286

申请日：1986-04-18

Applicant: IBM

Inventor： SCHWANE WALTER HENRY ,  ZIECINA FREDERICK JOSEPH

IPC: G06F9/46 ,  G06F13/00 ,  G06F15/16 ,  G06F15/177 ,  H04L29/00

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

IPC: G06F12/00 ,  G06F9/46 ,  G06F13/00 ,  G06F15/16 ,  G06F15/177 ,  H04L29/00

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.

公开(公告)号：DE3689991D1

公开(公告)日：1994-09-01

申请号：DE3689991

申请日：1986-05-23

Applicant: IBM

Inventor： HAMMER WILLIAM ELDER ,  SCHWANE WALTER HENRY ,  ZIECINA FREDERICK JOSEPH

IPC: G06F12/00 ,  G06F9/46 ,  G06F13/00 ,  G06F15/16 ,  G06F15/177 ,  H04L29/00

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.

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.

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.

公开(公告)号：DE3688893T2

公开(公告)日：1994-03-17

申请号：DE3688893

申请日：1986-05-23

Applicant: IBM

Inventor： SCHWANE WALTER HENRY ,  ZIECINA FREDERICK JOSEPH

IPC: G06F9/46 ,  G06F13/00 ,  G06F15/16 ,  G06F15/177 ,  H04L29/00

Abstract: An interprocess communication facility in a processor system provides for communication of data between at least two processes. The facility supports a plurality of different data transfer modes which are provided by storage management services of the processor or processors. A process interface provides a common interface for each communicating process to select data transfer modes independently of the data transfer mode chosen by the other communicating process. A data access control function is coupled to the process interface and to the storage management services. The data access control function controls the use of the storage management services as a function of the transfer modes chosen by the communicating processes. It is transparent to the processes as to which transfer mode was chosen by each other.

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.