摘要:
A method, computer program product and system for processing TCP/IP packets. A TCP protocol stack may store a payload of a received TCP/IP packet in a data fragment list. The TCP protocol stack may further read the header of the received packet to extract a value used to index into a table storing a list of transport control blocks (TCBs). The TCP protocol stack may further perform a lock and a read operation on the TCB indexed in the table. The TCP protocol stack may further transmit the payload to the TCP application without requiring the application to perform a lock, read, write or unlock operation on the indexed TCB since the TCP protocol stack and the TCP application are operating on the same thread. By the TCP application foregoing the lock, read, write and unlock operations on the TCB, there is a reduction in the number of memory accesses.
摘要:
A system and method in accordance with the present invention allows for an adapter to be utilized in a server environment that can accommodate both a 10 G and a 1 G source utilizing the same pins. This is accomplished through the use of a high speed serializer/deserializer (high speed serdes) which can accommodate both data sources. The high speed serdes allows for the use of a relatively low reference clock speed on the NIC to provide the proper clocking of the data sources and also allows for different modes to be set to accommodate the different data sources. Finally the system allows for the adapter to use the same pins for multiple data sources.
摘要:
A system and method for computing a blind checksum includes a host Ethernet adapter (HEA) with a system for receiving a packet. The system determines whether or not the packet is in Internet protocol version four (IPv4). If the packet is not in IPv4, the system computes the checksum of the packet. If the packet is in IPv4, the system determines whether the packet is in transmission control protocol (TCP) or user datagram protocol (UDP). If the packet is not in either of TCP or UDP the system attaches a pseudo-header to the packet and computes the checksum of the packet based on the pseudo-header and the IPv4 standard.
摘要:
Providing communications between operating system partitions and a computer network. In one aspect, an apparatus for distributing network communications among multiple operating system partitions includes a physical port allowing communications between the network and the computer system, and logical ports associated with the physical port, where each logical port is associated with one of the operating system partitions. Each of the logical ports enables communication between a physical port and the associated operating system partition and allows configurability of network resources of the system. Other aspects include a logical switch for logical and physical ports, and packet queues for each connection and for each logical port.
摘要:
A system and method for parsing, filtering, and computing the checksum in a host Ethernet adapter (HEA) that is coupled to a host. The method includes receiving a part of a frame, wherein a plurality of parts of a frame constitute a entire frame. Next, parse the part of a frame before receiving the entire frame. The HEA computes a checksum of the part of a frame. The HEA filters the part of a frame based on a logical, port-specific policy and transmits the checksum to the host.
摘要:
A lightweight, low cost solution provides inter process communications (IPC) in a network processing environment. A method of inter process communication (IPC) between General Purpose Processors in a network processing environment uses software based functions (Application Program Interfaces (APIs)) that enable inter process communication between processors in a network processing environment. The software enabled functions open and close inter process communication paths for transmitting and receiving of inter process communication frames and allow the inter process communication frames to be transmitted to one or several processors in said network processing environment. The software has the capability of selecting either data or control path in said network processing environment to transmit or receive said inter process communication frames.
摘要:
A lightweight, low cost solution provides inter process communications (IPC) in a network processing environment. A method of inter process communication (IPC) between General Purpose Processors in a network processing environment uses software based functions (Application Program Interfaces (APIs)) that enable inter process communication between processors in a network processing environment. The software enabled functions open and close inter process communication paths for transmitting and receiving of inter process communication frames and allow the inter process communication frames to be transmitted to one or several processors in said network processing environment. The software has the capability of selecting either data or control path in said network processing environment to transmit or receive said inter process communication frames.
摘要:
A lightweight, low cost solution provides inter process communications (IPC) in a network processing environment. A method of inter process communication (IPC) between General Purpose Processors in a network processing environment uses software based functions (Application Program Interfaces (APIs)) that enable inter process communication between processors in a network processing environment. The software enabled functions open and close inter process communication paths for transmitting and receiving of inter process communication frames and allow the inter process communication frames to be transmitted to one or several processors in said network processing environment. The software has the capability of selecting either data or control path in said network processing environment to transmit or receive said inter process communication frames.
摘要:
An Ethernet adapter is disclosed. The Ethernet adapter comprises a plurality of layers for allowing the adapter to receive and transmit packets from and to a processor. The plurality of layers include a demultiplexing mechanism to allow for partitioning of the processor. A Host Ethernet Adapter (HEA) is an integrated Ethernet adapter providing a new approach to Ethernet and TCP acceleration. A set of TCP/IP acceleration features have been introduced in a toolkit approach: Servers TCP/IP stacks use these accelerators when and as required. The interface between the server and the network interface controller has been streamlined by bypassing the PCI bus. The HEA supports network virtualization. The HEA can be shared by multiple OSs providing the essential isolation and protection without affecting its performance.
摘要:
Method and apparatus for implementing use of a network connection table. In one aspect, searching for network connections includes receiving a packet, and zeroing particular fields of connection information from the packet if a new connection is to be established. The connection information is converted to an address for a location in a direct table using a table access process. The direct table stores patterns and reference information for new and existing connections. The connection information is compared with at least one pattern stored in the direct table at the address to find reference information for the received packet.