Intel Corporation

Arturo L Arizpe

Gary Tsao

Hemal Vinodchandra Shah

Ali S Oztaskin

Ashish V Choubal

Harlan Titus Beverly

Scott D Hahn

Greg D Cummings

Ellen M Deleganes

Provided are a method, system, and program for managing data transmission from a source to a destination through a network. The destination imposes a window value on the source which limits the quantity of data packets which can be sent from the source to the destination without receiving an acknowledgment of being received by the destination. In one embodiment, the source imposes a second window value, smaller than the destination window value, which limits even further the quantity of data packets which can be sent from the source to the destination without receiving an acknowledgment of being received by the destination. In another embodiment, a plurality of direct memory access connections are established between the source and a plurality of specified memory locations of a plurality of destinations. The source imposes a plurality of message limits, each message limit imposing a separate limit for each direct memory access connection on the quantity of messages sent from the source to the specified memory location of the direct memory access connection associated with the message limit and lacking a message acknowledgment of being received by the destination of the direct memory access connection associated with the message limit.

Method, system, and program for managing data transmission through a network

In accordance with certain other techniques, doorbell information is received. A doorbell structure address is decoded from the doorbell information. A first protection domain identifier is determined from the doorbell structure address. A resource context of a data structure is determined from the doorbell information. The resource context at the doorbell address is read to determine a second protection domain identifier. The first protection domain identifier and the second protection domain identifier are compared to determine whether to update the resource context of the doorbell structure.

Doorbell mechanism using protection domains

In one embodiment, a method is provided. The method of this embodiment provides determining if a management queue can be created, and if a management queue can be created, allocating virtually contiguous memory to a management queue associated with a device, registering the management queue, and creating a management queue context.

Managing system memory resident device management queues

Provided are a method, system, and program for translating virtual addresses of memory locations within pages of different sizes. In one embodiment, a translation entry containing a physical address is stored in a data structure table for each page. Each virtual address includes a page virtual address which identifies the translation entry containing the physical address of the page containing the memory location. The virtual address may be translated to a translation entry index using the size of the page containing the memory location.

Growing community of inventors

Wimberley, TX, United States of America

Arturo L Arizpe