摘要:
Embodiments of the present invention include enhanced functionalities and components within a Communication Endpoint Processor (CEP) that act as an interface between computational and communications domains. The embodiments disclosed herein deliver a complete memory mapped high performance interface that has the ability to support the simultaneous transmission of multiple frames of multiple sizes, and that has the ability to interrupt the transmission of lower priority frames in order to send higher priority frames.
摘要:
Embodiments of the present invention include enhanced functionalities and components within a Communication Endpoint Processor (CEP) that act as an interface between computational and communications domains. The embodiments disclosed herein deliver a complete memory mapped high performance interface that has the ability to support the simultaneous transmission of multiple frames of multiple sizes, and that has the ability to interrupt the transmission of lower priority frames in order to send higher priority frames.
摘要:
A reliable method for inter-computer packet transport in multi-process and multi-computer environments includes acknowledgments of received packets. To enhance the reliability and fast recovery of lost packets, a bit-mapped message is used for selective acknowledgments by which individual messages may be selected for retransmission. Further functionalities cover the cases where packets may have been received out-of-order, or an acknowledgment was lost.
摘要:
A reliable method for inter-computer packet transport in multi-process and multi-computer environments includes acknowledgments of received packets. To enhance the reliability and fast recovery of lost packets, a bit-mapped message is used for selective acknowledgments by which individual messages may be selected for retransmission. Further functionalities cover the cases where packets may have been received out-of-order, or an acknowledgment was lost.
摘要:
In a networked multi computer environment, with redundant links, network interface cards (NICs) are commonly duplicated and teamed to provide a recovery mechanism when network components fail. Embodiments of the present inventions avoid teaming of pairs of NICs and provide a computing host with redundant network connections for the computing host through a switch that is transparent to the computing host. The computing host itself; that is, its hardware and software, is relieved of the duty of network access redundancy and returned to the simple, simplex networking operating mode. The switch replaces a potentially large number of NICs and the need for computing host network access redundancy management which leads to hardware and software cost reductions and increases the robustness and reliability of the system through redundant network access.
摘要:
In a multi-processor system with a high degree of inter processor communication, an operating system extension is described as a kernel function to poll a receive buffer. This is an opportunistic poll that continues to run in the user context after an application process has invoked the kernel with a blocking receive function. It is also running whenever no higher priority task is running. New data packets may be received for the present user application process while avoiding context switches, and for a different user process while avoiding interrupts. A hardware implemented delay timer and a buffer fill monitor generate interrupts when the system is not polling, thus guaranteeing a maximum latency and preventing buffer overflow, but these interrupts are largely avoided by polling when the system is handling a large amount of inter processor data traffic.
摘要:
A high performance network adapter is provided for forwarding traffic and providing adaptation between packetized memory fragment based processor links of multiple CPUs and multiple switch planes of a packet switching network. Low latency for short and long packets is provided by innovative packet reassembly, overlapping transmission, and reverse order transmission in the upstream direction, and cut through operation in the downstream direction.
摘要:
A protocol element referred to as a secure handle is described which provides an efficient and reliable method for application-to-application signaling in multi-process and multi-computer environments. The secure handle includes an absolute memory reference which allows the kernel to more quickly and efficiently associate a network data packet with an application's communication context in the kernel.
摘要:
An embodiment of one of the inventions disclosed herein is a computer system that includes a plurality of interconnected computational hosts, each of which are connected to one of a plurality of buffers. Each of the buffers includes a plurality of buffer spaces. Each of the computational hosts may be configured such that each transfer of a data packet from one of the plurality of computational hosts acting as a source of the data packet to another one of the plurality of computational hosts acting as a destination of the data packet is controlled by an availability of buffer spaces in the buffer coupled to the destination computational host.
摘要:
A system and method allows a virtual server to be assigned to any of a plurality of physical computes hosts in a networked computing system. Each physical compute host includes a motherboard and a secure management controller that includes a secure memory vault for storing virtual server secure profile data and a BIOS switch for loading a BIOS memory with a BIOS image from the secure memory and controlling access to the BIOS memory by the motherboard. The virtual server secure profile data is transmitted to the secure memory under the exclusive control of a secure infrastructure layer including a common system controller a secure network that is distinct from the network over which the operating system and application stack is loaded.