CN102098103A - Direct interface method of fiber channel (FC) bus and high-speed intelligent unified bus - Google Patents
Direct interface method of fiber channel (FC) bus and high-speed intelligent unified bus Download PDFInfo
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- CN102098103A CN102098103A CN2010105779502A CN201010577950A CN102098103A CN 102098103 A CN102098103 A CN 102098103A CN 2010105779502 A CN2010105779502 A CN 2010105779502A CN 201010577950 A CN201010577950 A CN 201010577950A CN 102098103 A CN102098103 A CN 102098103A
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Abstract
The invention discloses a direct interface method of a fiber channel (FC) bus and a high-speed intelligent unified bus, which is used for solving the technical problem that the existing FC bus can not directly access to a high-speed intelligent unified bus. The technical scheme is as follows: high-speed serial-to-parallel conversion is adopted to realize high-speed serial-to-parallel conversion for high-speed intelligent unified bus data; a low-speed logic device is utilized to configure a high-speed intelligent unified bus protocol; a high-speed dual-port static random access memory (SRAM) is adopted to carry out data caching; a high-speed monitoring unit is utilized to intelligently switch the read-write clock of the high-speed dual-port SRAM; and a method that a data port of an FC controller is directly connected with a data port of the high-speed intelligent unified bus is adopted to directly interact data with the FC, thus realizing the direct interface of the FC and the high-speed intelligent unified bus. Meanwhile, the FC can be conveniently and flexibly connected with other buses mutually, and the number of interconnected bus media in a system and the system power consumption are reduced.
Description
Technical field
The present invention relates to a kind of bus interface method, the direct interface method of particularly a kind of optical-fibre channel bus and high-speed intelligent unibus.
Background technology
Optical-fibre channel FC (fiber channel) technology is the data communication standard that the X3T11 committee of ANSI formulated in 1993.Its transmission rate can reach several Gbps, and topological structure is versatile and flexible, satisfies the growth requirement of following opportunity of combat.The optical-fibre channel technology is subjected to the abroad especially attention of US military, and US military has been set up FC-AE specially, has formulated aviation electronics version fibre channel standard.The F/A-18E/F of the U.S., the optical-fibre channel technology has been used in the remodeling plan of B-1B.During the competition JSF of Boeing and Lockheed Martin Corporation aircraft development contract, all with the optical-fibre channel technology as one of selection scheme of express network.Because fiber channel network when high rate data transmission is provided, can also guarantee the quality of signal transmission, this just makes it be very suitable for opportunity of combat of future generation and uses.
Document " application of optical-fibre channel technology in avionics system; airplane design, in August, 2008, the 28th volume; the 4th phase " discloses the interface method of a kind of optical-fibre channel bus and MIL-STD-1553B, and this method has realized the bus bridge between optical-fibre channel and the MIL-STD-1553B.But still do not solve the direct interface problem of optical-fibre channel and high-speed intelligent unibus.
Summary of the invention
In order to overcome the problem that existing optical-fibre channel bus can't directly insert the high-speed intelligent unibus, the invention provides the direct interface method of a kind of optical-fibre channel bus and high-speed intelligent unibus.This method adopts the high speed string and the conversion of going here and there at a high speed and changing realization high-speed intelligent unibus data, adopt low speed logic cell configuration high-speed intelligent unibus agreement, adopt high speed dual-port SRAM to carry out metadata cache, adopt the high speed monitor unit that the read-write clock of high speed dual-port SRAM is carried out the intelligence switching, the method and the direct interaction data of optical-fibre channel that adopt the FPDP of the FPDP of fiber channel controller and high-speed intelligent unibus directly to join are realized the direct interface of optical-fibre channel and high-speed intelligent unibus based on this.
The present invention solves the technical scheme that its technical problem adopts, the direct interface method of a kind of optical-fibre channel bus and high-speed intelligent unibus, and its characteristics may further comprise the steps:
1) the optical-fibre channel data conversion is high-speed intelligent unibus data.
Adopt the optical-fibre channel transceiver that the signal on the fiber channel network is delivered to fiber channel controller, fiber channel controller receives input, and the signal that receives is carried out Data Receiving by fiber channel protocol carry out protocol analysis and data extract, and the data of extracting are passed to high-speed intelligent unibus protocol element by FPDP.The data that high-speed intelligent unibus protocol element is extracted optical-fibre channel are encoded according to pre-configured bus protocol, and the data after will encode write fixed area among the high speed dual-port SRAM with low-speed clock, and notify the high speed monitor unit.When the high speed monitor unit stopped in high speed dual-port SRAM write data at intelligent bus, at first the read-write clock with high speed dual-port SRAM switched to high-frequency clock, triggered string at a high speed and converting unit then and read data among the high speed dual-port SRAM.At a high speed after string and the converting unit reading of data, data are carried out and go here and theres conversion, afterwards data are coupled to directly transmission on the optical fiber.
2) high-speed intelligent unibus data conversion is the optical-fibre channel data.
Adopt at a high speed string and converting unit the signal on the high-speed intelligent unibus network is gone here and there and to change, with high-frequency clock the data that receive are write fixed area among the dual-port SRAM and notice high speed monitor unit then.When the high speed monitor unit stops in high speed dual-port SRAM write data at a high speed string and conversion, the clock of high speed dual-port SRAM is switched to low-speed clock, and trigger high-speed intelligent unibus protocol element reading data.High-speed intelligent unibus protocol element receives after the triggering, the data among the high speed dual-port SRAM is read, and carry out Frame decoding and valid data extraction according to pre-configured bus protocol, then the data of extracting is paid fiber channel controller.Fiber channel controller is at first intercepted bus state, at one's leisure, the data of paying is passed to the optical-fibre channel transceiver after according to optical-fibre channel bus protocol coding.The optical-fibre channel transceiver carries out data after the level format adjustment, data is coupled on the fiber channel network send.
The invention has the beneficial effects as follows: owing to adopt high speed string and conversion to realize the high speed string and the conversion of high-speed intelligent unibus data, adopt low speed logic cell configuration high-speed intelligent unibus agreement, adopt high speed dual-port SRAM to carry out metadata cache, adopt the high speed monitor unit that the read-write clock of high speed dual-port SRAM is carried out the intelligence switching, the method and the direct interaction data of optical-fibre channel that adopt the FPDP of the FPDP of fiber channel controller and high-speed intelligent unibus directly to join are realized the direct interface of optical-fibre channel and high-speed intelligent unibus based on this.The present invention at first based on the flexible configuration characteristic of high-speed intelligent unibus agreement, has realized that the convenience of optical-fibre channel and other buses is interconnected in its problem of solution; Reduced the bus quantity of interconnected bus medium on a large scale once more; Because only at the high speed dual-port SRAM that joins with the high-speed intelligent unibus, string and converting unit, high speed monitor unit adopt the very high frequency(VHF) device at a high speed, and remainder can adopt conventional device, thereby has reduced power consumption, the cost expense of system.
Below in conjunction with drawings and Examples the present invention is elaborated.
Description of drawings
Fig. 1 is the direct interface structure chart of optical-fibre channel bus and high-speed intelligent unibus.
Fig. 2 is that the optical-fibre channel bus is changeed high-speed intelligent unibus figure.
Fig. 3 is that the high-speed intelligent unibus changes the total line chart of optical-fibre channel.
Embodiment
With reference to Fig. 1～3, describe the present invention in detail.
Fiber channel controller of the present invention adopts PM8032 Tachyon QE8; The high speed two-port RAM adopts IDT70V3079; High-speed intelligent unibus protocol element realizes based on the low speed logic device, as the EP1C12 Series FPGA; The high speed monitor unit adopts the high speed logic device to realize, as the high speed logic device of Hittite company; String and converting unit can adopt BCM8152 to realize the data transmit-receive speed of 10Gbps at a high speed.By write the fiber channel controller configurator, at a high speed string and converting unit configurator make optical-fibre channel and string and converting unit can work independently at a high speed; By realizing that in the high speed logic device clock switch unit, high speed monitor unit make the clock of dual-port SRAM intelligence to switch.
The present invention comprises that mainly optical-fibre channel receives data, pays data the process of transmitting of high-speed intelligent unibus; The high-speed intelligent unibus receives data, data is paid the receiving course of optical-fibre channel.
Process of transmitting: adopt the optical-fibre channel transceiver that the signal on the fiber channel network is carried out the level format adjustment, then the result is inputed to fiber channel controller.Fiber channel controller will be imported according to fiber channel protocol and carry out data decode, and give high-speed intelligent unibus protocol element with the data passes that receives.High-speed intelligent unibus protocol element is encoded according to pre-configured bus protocol to the decoded data of optical-fibre channel, and the data after will encoding write fixed area among the high speed dual-port SRAM with low-speed clock, and notice high speed monitor unit.When the high speed monitor unit stopped in high speed dual-port SRAM write data at intelligent bus, at first the read-write clock with high speed dual-port SRAM switched to high-frequency clock, triggered string at a high speed and converting unit then and read data among the high speed dual-port SRAM.At a high speed after string and the converting unit reading of data, data are carried out and gone here and there conversion, data are coupled on the optical fiber send afterwards.
Receiving course: adopt at a high speed string and converting unit the signal on the high-speed intelligent unibus network is gone here and there and to change, with high-frequency clock the data that receive are write fixed area among the dual-port SRAM and notice high speed monitor unit then.When the high speed monitor unit stops in high speed dual-port SRAM write data at a high speed string and conversion, the clock of high speed dual-port SRAM is switched to low-speed clock, and trigger high-speed intelligent unibus protocol element reading data.High-speed intelligent unibus protocol element receives after the triggering, the data among the high speed dual-port SRAM is read, and carry out Frame decoding and load data extraction according to pre-configured bus protocol, then the data of extracting is paid fiber channel controller.Optical-fibre channel passes to the optical-fibre channel transceiver after the data of paying are encoded according to fiber channel protocol.The optical-fibre channel transceiver carries out data after the level format adjustment, data is coupled on the fiber channel network send.
The present invention at first based on the flexible configuration characteristic of high-speed intelligent unibus agreement, has realized that the convenience of optical-fibre channel and other buses is interconnected in its problem of solution; Once more multiple bus medium being merged becomes a branch of optical fiber, has reduced the bus quantity of interconnected bus medium on a large scale; Once more because only at the high speed dual-port SRAM that joins with the high-speed intelligent unibus, string and converting unit, high speed monitor unit adopt the very high frequency(VHF) device at a high speed, and remainder can adopt conventional device, thereby has reduced power consumption, the cost expense of system.
Claims (1)
1. the direct interface method of optical-fibre channel bus and high-speed intelligent unibus is characterized in that may further comprise the steps:
(a) adopt the optical-fibre channel transceiver that the signal on the fiber channel network is delivered to fiber channel controller, fiber channel controller receives input, and the signal that receives is carried out Data Receiving by fiber channel protocol carry out protocol analysis and data extract, and the data of extracting are passed to high-speed intelligent unibus protocol element by FPDP; The data that high-speed intelligent unibus protocol element is extracted optical-fibre channel are encoded according to pre-configured bus protocol, and the data after will encode write fixed area among the high speed dual-port SRAM with low-speed clock, and notify the high speed monitor unit; When the high speed monitor unit stopped in high speed dual-port SRAM write data at intelligent bus, at first the read-write clock with high speed dual-port SRAM switched to high-frequency clock, triggered string at a high speed and converting unit then and read data among the high speed dual-port SRAM; At a high speed after string and the converting unit reading of data, data are carried out and go here and theres conversion, afterwards data are coupled to directly transmission on the optical fiber;
(b) adopt at a high speed string and converting unit the signal on the high-speed intelligent unibus network is gone here and there and to change, with high-frequency clock the data that receive are write fixed area among the dual-port SRAM and notice high speed monitor unit then; When the high speed monitor unit stops in high speed dual-port SRAM write data at a high speed string and conversion, the clock of high speed dual-port SRAM is switched to low-speed clock, and trigger high-speed intelligent unibus protocol element reading data; High-speed intelligent unibus protocol element receives after the triggering, the data among the high speed dual-port SRAM is read, and carry out Frame decoding and valid data extraction according to pre-configured bus protocol, then the data of extracting is paid fiber channel controller; Fiber channel controller is at first intercepted bus state, at one's leisure, the data of paying is passed to the optical-fibre channel transceiver after according to optical-fibre channel bus protocol coding; The optical-fibre channel transceiver carries out data after the level format adjustment, data is coupled on the fiber channel network send.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104081692A (en) * | 2012-04-30 | 2014-10-01 | 惠普发展公司，有限责任合伙企业 | Converged fabric for FCoE |
| CN105024756A (en) * | 2015-07-09 | 2015-11-04 | 哈尔滨工业大学 | Optical transmission system based on IEEE1394b data |
| CN107643989A (en) * | 2016-07-22 | 2018-01-30 | 北京中科信电子装备有限公司 | One kind is based on pci bus agreement dual fiber ring road redundancy structure Communication Card |
| CN108011694A (en) * | 2017-11-29 | 2018-05-08 | 北京航空航天大学 | A kind of efficient data exchange method based on FC |
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| CN1610327A (en) * | 2003-10-17 | 2005-04-27 | 中国科学院空间科学与应用研究中心 | Method for transmitting data of dissimilar bus cooperative work and equipment thereof |
| US20070294459A1 (en) * | 2006-06-16 | 2007-12-20 | Acard Technology Corp. | Apparatus for bridging a host to a SAN |
| CN201355815Y (en) * | 2008-12-26 | 2009-12-02 | 中国科学院空间科学与应用研究中心 | IEEE1394 bus protocol controller applied in space technology |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610327A (en) * | 2003-10-17 | 2005-04-27 | 中国科学院空间科学与应用研究中心 | Method for transmitting data of dissimilar bus cooperative work and equipment thereof |
| US20070294459A1 (en) * | 2006-06-16 | 2007-12-20 | Acard Technology Corp. | Apparatus for bridging a host to a SAN |
| CN201355815Y (en) * | 2008-12-26 | 2009-12-02 | 中国科学院空间科学与应用研究中心 | IEEE1394 bus protocol controller applied in space technology |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104081692A (en) * | 2012-04-30 | 2014-10-01 | 惠普发展公司，有限责任合伙企业 | Converged fabric for FCoE |
| US9455906B2 (en) | 2012-04-30 | 2016-09-27 | Hewlett Packard Enterprise Development Lp | Converged fabric for FCoE |
| CN105024756A (en) * | 2015-07-09 | 2015-11-04 | 哈尔滨工业大学 | Optical transmission system based on IEEE1394b data |
| CN107643989A (en) * | 2016-07-22 | 2018-01-30 | 北京中科信电子装备有限公司 | One kind is based on pci bus agreement dual fiber ring road redundancy structure Communication Card |
| CN107643989B (en) * | 2016-07-22 | 2022-05-10 | 北京中科信电子装备有限公司 | Dual-optical-fiber loop redundancy structure communication board card based on PCI bus protocol |
| CN108011694A (en) * | 2017-11-29 | 2018-05-08 | 北京航空航天大学 | A kind of efficient data exchange method based on FC |
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