Direct internal memory access system for interface of internet small-sized computer system

A small computer, memory access technology, applied in the direction of transmission systems, electrical components, instruments, etc., can solve the problem of increased number of DMA system interrupts, etc., to reduce the time to read memory and wait for processing time, reduce time, improve speed and The effect of potency
CN1904870AInactive Publication Date: 2007-01-31IND TECH RES INST
1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
IND TECH RES INST
Publication Date
2007-01-31
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a directly memory accessing system used in internet microcomputer system interface. It includes a first bus interface, a second bus interface a FIFO memory, an iSCSI cycling redundant code module and a directly accessing controller. The iSCSI cycling redundant code module is embedded in directly accessing system to supply iSCSI protocol and TCP / IP protocol data transferring interface. While accessing iSCSI protocol data unit, the iSCSI cycling redundant code would be automatically calculated and update digest of iSCSI protocol data unit. Thus, using the invention could lower the load of CPU and decrease the time of repeatedly reading iSCSI protocol data unit to improve the speed and efficiency of processing iSCSI cycling redundant code.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a direct memory access system, in particular to a direct memory access system for Internet Small Computer System Interface (iSCSI). Background technique

[0002] Internet Small Computer System Interface (iSCSI) is a new storage network technology and transmission protocol. The main function of this transport protocol is to transmit SCSI commands and data through the iSCSI protocol data unit (PDU) on the currently developed IP network. Therefore, through the iSCSI protocol, the IP network can also become a storage network.

[0003] The biggest advantage of using an IP network as a storage network is that for users, they only need to replace their servers and storage devices with iSCSI interfaces and use the original IP network switching devices to build a low-cost and high-quality system. storage network.

[0004] According to the load analysis of the iSCSI protocol, the transmission and reception load of TCP / IP is the larges...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More