公开(公告)号：AU2010355798A1

公开(公告)日：2012-12-20

申请号：AU2010355798

申请日：2010-11-08

Applicant: IBM

Inventor： SITTMANN III GUSTAV ,  CRADDOCK DAVID ,  GREGG THOMAS ,  FARRELL MARK ,  EASTON JANET ,  LAIS ERIC NORMAN

IPC: G06F13/38 ,  G06F9/48 ,  G06F13/24

Abstract: One or more message signaled interruption requests from one or more input/output (I/O) adapters are converted to I/O adapter event notifications. Each I/O adapter event notification includes the setting of one or more specific indicators in system memory and an interruption request, the first of which results in a pending I/O adapter interruption request. While a request for an I/O adapter interruption is pending, subsequent message signaled interruption requests are converted to I/O adapter event notifications, but do not result in additional requests for I/O adapter interruptions.

公开(公告)号：CA2800636A1

公开(公告)日：2011-12-29

申请号：CA2800636

申请日：2010-11-08

Applicant: IBM

Inventor： CRADDOCK DAVID ,  GREGG THOMAS ,  GREINER DAN ,  LAIS ERIC NORMAN

IPC: G06F13/16 ,  G06F12/10

Abstract: An address provided in a request issued by an adapter is converted to an address directly usable in accessing system memory. The address includes a plurality of bits, in which the plurality of bits includes a first portion of bits and a second portion of bits. The second portion of bits is used to index into one or more levels of address translation tables to perform the conversion, while the first portion of bits are ignored for the conversion. The first portion of bits are used to validate the address.

公开(公告)号：DE60212626T2

公开(公告)日：2007-07-05

申请号：DE60212626

申请日：2002-03-18

Applicant: IBM

Inventor： CRADDOCK DAVID ,  ELKO ARLEN ,  GREGG ANTHONY ,  PFISTER FRANCIS ,  RECIO JOHN

IPC: G06F13/40 ,  H04L12/28 ,  G06F9/445

Abstract: A method and system for a distributed computing system having components like end nodes, switches, routers and links interconnecting packets over the interconnecting links. The switches and routers interconnect the end nodes and route the packets to the appropriate end node. The end nodes reassemble the packets into a message at a destination. A mechanism is provided to allow a single physical component to appear as multiple components each with unique control levels. These components may be host channel adapters (HCAs), target channel adapters (TCAs) or switches. A method and system for end node partitioning for a physical element is provided. A configuration of the physical element is selected. A port associated with the physical element is probed, wherein the port is probed with a subnet management packet by a subnet manager. In response to detecting a switch associated with the port, a local identifier is assigned to the port resulting in a configuration change of the physical element.

公开(公告)号：CA2446691A1

公开(公告)日：2003-01-09

申请号：CA2446691

申请日：2002-05-31

Applicant: IBM

Inventor： SENDELBACH LEE ANTON ,  CRADDOCK DAVID ,  JUDD IAN DAVID ,  RECIO RENATO JOHN

IPC: G06F13/10 ,  G06F13/38 ,  G06F15/17 ,  G06F13/12

Abstract: A method and system for transmitting and receiving data from a host computer system to an Ethernet adapter are provided. The method comprises establishin g a connection between the host system and the Ethernet adapter pushing a transmit or receive request message from a host system device driver to the Ethernet adapter's request queue. Access to host memory is transferred to th e Ethernet adapter. If data is being transmitted to the Ethernet adapter, the adapter reads the data from a location in host memory specified in the transmit request message, and then transmits the data onto transmission medi a (e.g. wire, fiber). If the request message is a receive request, the adapter reads the data from the media and then sends the data into host memory at th e location specified in the receive request message. When the data transfer is complete, the adapter sends a response message back to the host. The respons e message includes a transaction ID which is used by the host device driver to associate the response message to the original request message.