Abstract:
A network protocol unit interface is described that uses a message engine to transfer contents of received network protocol units in message segments to a destination message engine. The network protocol unit interface uses a message engine to receive messages whose content is to be transmitted in network protocol units. A message engine transmits message segments to a destination message engine without the message engine transmitter and receiver sharing memory space. In addition, the transmitter message engine can transmit message segments to a receiver message engine by use of a virtual address associated with the receiver message and a queue identifier, as opposed to a memory address.
Abstract:
Techniques are described that can be used by a message engine to notify a core or hardware thread of activity. For example, an inter-processor interrupt can be used to notify the core or hardware thread. The message engine may generate notifications in response to one or more message received from a transmitting message engine. Message engines may communicate without sharing memory space.
Abstract:
Techniques to issue a single application programming interface (API) to request both data copy and CRC validation operations. In some embodiments, a receiver of the API may observe which logic (e.g., software or hardware and/or combinations of software and hardware) is available to execute instructions for data copy and CRC validation operations.
Abstract:
A virtual to physical address translator in which a requesting process supplements a virtual memory address with a shortcut to a physical address associated with one level of a multi-level virtual address translation table. A second process, such as an I/0 process, receives the shortcut and the virtual address and uses an address translator to determine the physical address. In some implementations, the shortcut may be made opaque to the requesting process such that the requesting process cannot determine the physical address represented in the shortcut.
Abstract:
A first logic offloads some network protocol unit formation tasks to a second logic. The first logic may request that data be transmitted using a Direct Data Placement (DDP) compatible network protocol unit. The first logic may provide the data as well as other information relevant to forming the DDP compatible network protocol unit. The second logic may form portions of the DDP compatible network protocol unit using the data and the provided information.
Abstract:
In one embodiment, the present invention includes a method for receiving incoming data in a processor and performing a checksum operation on the incoming data in the processor pursuant to a user-level instruction for the checksum operation. For example, a cyclic redundancy checksum may be computed in the processor itself responsive to the user-level instruction. Other embodiments are described and claimed.
Abstract:
Verfahren mit:Übertragen (302) einer Anforderung von einer ersten Logik an eine zweite Logik, wobei die Anforderung eine Anforderung zum Bilden einer Netzwerkprotokolleinheit übereinstimmend mit dem Direct Data Placement (DDP)-Protokoll beihaltet;an der ersten Logik, Erzeugen mindestens eines Headerfelds für einen Headerabschnitt mindestens einer mit DDP übereinstimmenden Netzwerkprotokolleinheit;Liefern des erzeugten mindestens einen Headerfelds an die zweite Logik;an der zweiten Logik, Erzeugen mindestens eines Headerfelds; undan der zweiten Logik, selektives Bilden (304) mindestens einer mit dem DDP-Protokoll übereinstimmenden Netzwerkprotokolleinheit als Reaktion auf die Anforderung und basierend auf den erzeugten Header-Feldern von der ersten und zweiten Logik, wobei die Anforderung eine Identifizierung von Daten, eine Identifizierung eines Headers und eine Identifizierung eines Kontext beinhaltet und wobei jede der mindestens einen Netzprotokolleinheit Header- und Payload-Abschnitte aufweist.
Abstract:
A first logic offloads some network protocol unit formation tasks to a second logic. The first logic may request that data be transmitted using a Direct Data Placement (DDP) compatible network protocol unit. The first logic may provide the data as well as other information relevant to forming the DDP compatible network protocol unit. The second logic may form portions of the DDP compatible network protocol unit using the data and the provided information.