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Storage network adapter of supporting virtual interface

A virtual interface and storage network technology, applied in the field of storage network adapters, can solve the problems of low software implementation performance, high hardware implementation cost, poor compatibility, etc., to improve storage network bandwidth, improve interconnection and interoperability, The effect of improving communication transmission performance

Inactive Publication Date: 2008-08-27
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

At present, the methods of implementing VIA include software implementation and hardware implementation, but the performance of software implementation is not high, and the cost of hardware implementation is high, and the compatibility is not good.

Method used

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  • Storage network adapter of supporting virtual interface

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Embodiment Construction

[0028] Combine below figure 1 The present invention is further described. The host interface part 120 is implemented by 64-bit 66MHz PCI (Peripheral Component Interconnect), and can also use a higher-speed PCI-X interface to obtain higher speed performance, and 180 is a 64-bit PCI interface bus. Core processor 110 adopts the general-purpose RISC microprocessor Nios II that Altera Company provides to realize, and corresponding on-chip system bus 150 adopts Avalon switching bus, and memory 130 includes dual-port static RAM (Static Random Access Memory) 130.1 again, for communicating with The host performs command (descriptor) interaction; relatively large-capacity synchronous dynamic RAM (Synchronous Dynamic RAM) 130.2 of the dual-port static RAM 130.1 is used for the main memory and data cache of the processor; Flash memory 130.3 is used for program curing and the preservation of configuration information; these modules work together to ensure the reliable operation of the sys...

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Abstract

Thorough mode of combining software with hardware in FPGA chip, the invention realizes protocol of virtual interface. The invention includes host interface, system on chip, Ethernet interface, and dedicated logic circuit for virtual interface. Through bus of system on chip, the system on chip is connected to Ethernet interface each other. Using communication mechanism sharing memory between host interface and system on chip realizes interlinkage and communication. Advantages are: reducing communication overhead of communication, obtaining more high transmission performance; using communication protocol in VIA lightweight level, the invention reduces data copy in communication process, shortens key path of storing data; Ethernet as transmission media is adopted at bottom layer so as to guarantee interlinkage and interoperability to current network; collaborative work between software and hardware speeds up procedure for processing protocol.

Description

technical field [0001] The invention belongs to the technical field of computer storage, and in particular relates to a storage network adapter, which is used to construct a storage network based on a virtual interface. Background technique [0002] Network storage has become the mainstream and hotspot of storage system application and research. It interconnects traditional storage devices (disks, CDs, tape libraries, disk arrays, etc.) High security new storage system. In addition to the storage device itself, another key factor determining the performance of a network storage system is network communication transmission. Most of the existing network storage systems use the TCP / IP protocol for communication transmission, but TCP / IP itself is not designed for storage system data transmission, it is more suitable for the transmission of a large number of small data packets. For large blocks of continuous storage system data, TCP / IP is used for transmission, and the communic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28G06F12/00G06F13/00
Inventor 冯丹童薇陈俭喜王芳刘景宁王娟施展庞丽萍
Owner HUAZHONG UNIV OF SCI & TECH
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