CN103778095B - A kind of sata based on fpga chip extends framework - Google Patents
A kind of sata based on fpga chip extends framework Download PDFInfo
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- CN103778095B CN103778095B CN201410007402.4A CN201410007402A CN103778095B CN 103778095 B CN103778095 B CN 103778095B CN 201410007402 A CN201410007402 A CN 201410007402A CN 103778095 B CN103778095 B CN 103778095B
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Abstract
The invention discloses a kind of sata based on fpga chip and extend framework, comprise sata host adapter and sata device adapter, wherein sata host adapter is used for realizing sata transport layer functionality, sata device adapter is used for realizing sata link layer and physical layer function, communicates based on aurora agreement between sata host adapter and sata device adapter.Sata agreement is carried out segmentation and realizes by the present invention, PCIe and sata phy physical interface is in different fpga chip chips, system resource equalization is greatly improved, while improving the memory space of storage system, effectively reduces the extension cost of memory space.
Description
Technical field
The present invention relates to sata and extend design field, particularly relate to a kind of sata based on fpga chip and extend framework.
Background technology
Along with computer and the development of Internet technology, the hugest number of users causes data to sharply increase, and the requirement to server storage is more and more higher.
The most a lot of data service providers increase the memory space sharp increase with reply storage data by the method adding new server.But enough in original system process performance, and in the case of only lacking memory space, this way can increase considerably the cost of service provider undoubtedly.Although there being sata expansion board to sell on market, but these sata expansion board mostly can only several pieces of sata memorizeies of additional extension, relative to the most universal storage array with tens or tens hard disk quantity, the hard-disk capacity extension that it can provide is limited.
The sata relevant design being generally basede on fpga chip all can be complete sata protocol realization in one piece of fpga chip chip, too many concern fpga chip resource requirement is need not for the sata of negligible amounts designs, but for multichannel sata Parallel Design, the highest to fpga chip resource requirement, especially HSSI High-Speed Serial Interface resource, this can cause system cost too high.
Aurora is a kind of extendible, light-type, the point-to-point serial differential High Speed Data Transfer Protocol of link layer that Xilinx company proposes, and the data acquisition 8b/10b of its transmission encodes.Aurora is primarily directed to the data transmission of chip-scale and plate level, does not possess upper layer application protocol, is the most only responsible for data transmission.
Summary of the invention
The technical problem to be solved is the defect for background technology, it is provided that a kind of system resource equalization, be effectively improved memory space, reduce extension cost sata based on fpga chip extend framework.
The present invention solves above-mentioned technical problem by the following technical solutions:
A kind of sata based on fpga chip extends framework, comprise sata host adapter and sata device adapter, wherein sata host adapter is used for realizing sata transport layer functionality, sata device adapter is used for realizing sata link layer and physical layer function, communicates based on aurora agreement between sata host adapter and sata device adapter.
nullThe further prioritization scheme of framework is extended as a kind of sata based on fpga chip of the present invention，Described sata host adapter comprises the first pcb board、PCIe interface、First fpga chip，Described first fpga chip and PCIe interface are arranged on the first pcb board，Described first fpga chip comprises PCIe control module、At least one sata transport layer module、For sata Yu the aurora data management module mutually converted between sata data and aurora data and two aurora control modules，Described PCIe control module is connected with described PCIe interface，Described sata transport layer module respectively with described PCIe control module、Oneth sata with aurora data management module is connected，Said two aurora control module is connected with described sata with an aurora data management module.
nullThe further prioritization scheme of framework is extended as a kind of sata based on fpga chip of the present invention，Described sata device adapter comprises the second pcb board、Second fpga chip、The sata interface that stat pm chip that number is identical with the quantity of described sata transport layer module and number are identical with the quantity of described sata transport layer module，Described second fpga chip、Stat pm chip、Sata interface is arranged on the second pcb board，Described second fpga chip comprises two aurora control modules、For the 2nd sata Yu the aurora data management module mutually converted between sata data and aurora data、The sata link layer module that number is identical with the quantity of described sata transport layer module、And the sata physical layer block that number is identical with the quantity of described sata transport layer module，Two aurora control modules of described sata device adapter are connected by minisas line is corresponding with two aurora control modules in described first fpga chip respectively，Described 2nd sata Yu aurora data management module is respectively and described sata link layer module、Two aurora control modules of described sata device adapter are connected，Described sata link layer module is corresponding with described sata physical layer block to be connected，Described sata physical layer block is corresponding with described stat pm chip to be connected，Described stat pm chip is corresponding with described sata interface to be connected.
The present invention uses above technical scheme compared with prior art, has following technical effect that
1. sata agreement carries out segmentation realize so that PCIe and sata phy physical interface is in different fpga chips, and system resource equalization is greatly improved, effectively reduce system design cost, design for system and bring great convenience；
2. can support more expansible sata hard disk quantity, improve the memory space of storage system the most to a great extent, the most effectively reduce the extension cost of memory space.
Accompanying drawing explanation
Fig. 1 is the overall structure block diagram of the present invention；
Fig. 2 is the hardware block diagram of sata host adapter in the present invention；
Fig. 3 is the hardware block diagram of sata device adapter in the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is described in further detail:
As shown in Figure 1, the invention discloses a kind of sata based on fpga chip and extend framework, comprise sata host adapter and sata device adapter, wherein sata host adapter is used for realizing sata transport layer functionality, sata device adapter is used for realizing sata link layer and physical layer function, communicates based on aurora agreement between sata host adapter and sata device adapter.
nullDescribed sata host adapter comprises the first pcb board、PCIe interface、First fpga chip，Described first fpga chip and PCIe interface are arranged on the first pcb board，Described first fpga chip comprises PCIe control module、At least one sata transport layer module、For sata Yu the aurora data management module mutually converted between sata data and aurora data and two aurora control modules，Described PCIe control module is connected with described PCIe interface，Described sata transport layer module respectively with described PCIe control module、Oneth sata with aurora data management module is connected，Said two aurora control module is connected with described sata with an aurora data management module.
nullDescribed sata device adapter comprises the second pcb board、Second fpga chip、The sata interface that stat pm chip that number is identical with the quantity of described sata transport layer module and number are identical with the quantity of described sata transport layer module，Described second fpga chip、Stat pm chip、Sata interface is arranged on the second pcb board，Described second fpga chip comprises two aurora control modules、For the 2nd sata Yu the aurora data management module mutually converted between sata data and aurora data、The sata link layer module that number is identical with the quantity of described sata transport layer module、And the sata physical layer block that number is identical with the quantity of described sata transport layer module，Two aurora control modules of described sata device adapter are connected by minisas line is corresponding with two aurora control modules in described first fpga chip respectively，Described 2nd sata Yu aurora data management module is respectively and described sata link layer module、Two aurora control modules of described sata device adapter are connected，Described sata link layer module is corresponding with described sata physical layer block to be connected，Described sata physical layer block is corresponding with described stat pm chip to be connected，Described stat pm chip is corresponding with described sata interface to be connected.
Sata host adapter and sata device adapter connect with aurora high speed serialization agreement, link together and be capable of complete sata function, sata host adapter is communicated by PCIe interface with host server, and sata device adapter and sata hard disk are by sata interface communication.
Multichannel sata parallel data transmission is realized in sata host adapter and sata device adapter, owing to sata device adapter being provided with sata pm chip, when sata expansion scheme realizes there is 8 road sata parallel data transmission, then sata device adapter just can support maximum 16 pieces of hard disks extension.
Described sata host adapter mainly realizes the data management between the telecommunication management of host server and the telecommunication management of sata device adapter, sata transport layer functionality and multichannel sata data (data of transmission between sata transport layer and link layer) and sata device adapter telecommunication management, these functional realiey are inside fpga chip, and wherein the telecommunication management with sata device adapter is mainly aurora protocol integrated test system.
Described sata device adapter mainly realizes sata link layer and physical layer function, sata pm(port multipler) data management between function and the telecommunication management of sata host adapter and multichannel sata data and sata host adapter, function in addition to sata pm is all implemented in inside fpga chip, and wherein the telecommunication management with sata host adapter is mainly aurora protocol integrated test system.
Described first, second sata Yu aurora data management module is the module with said function, it is marked differentiation to the sata data on different sata paths, and by certain strategy, such as first in first out (FIFO) strategy, multichannel sata data are sent to aurora controller in sequence and are sent to sata host adapter or sata device adapter；And data aurora received according to Data Labels are distributed on different sata passages.
By connecting sata host adapter and sata device adapter, host server can be written and read operation to the sata hard disk of extension, thus realizing the extension of memory space, expansible sata hard disk quantity is mainly determined by the kind (mechanical hard disk or solid state hard disc) of the PCIe bandwidth of host server end and the sata hard disk of wanted carry.
As shown in Figure 2, sata host adapter is by PCIe interface, PCIe control module, parallel 8 road sata transport layer module, oneth sata Yu aurora data management module, 2 aurora control module compositions, wherein PCIe control module realizes the telecommunication management function of sata host adapter and host server, PCIe interface is the bandwidth that Gen2 x4 has 1.2GB/s, aurora control module realizes the telecommunication management function of sata host adapter and sata device adapter, minisas interface is not to be responsible for transmission sas agreement but transmission aurora, on every line, transmission speed is 6Gbps, total bandwidth is 1.2GB/s.
As shown in Figure 3, sata device adapter is made up of 16 sata interfaces, 8 sata pm chips, parallel 8 road sata link layer modules and sata physical layer block, the 2nd sata with aurora Data Management Unit, 2 aurora controllers, wherein sata pm chip realizes the telecommunication management function of sata adapter adapter and sata hard disk, the actual data transfer rate of 8 sata interfaces is about 80*16MB/s(1.28GB/s) bandwidth, aurora control module realizes the telecommunication management function of sata device adapter and sata host adapter.Sata extension design in the present embodiment substantially can meet the data transfer bandwidth of 16 extra mechanical sata hard disks.
Claims (2)
1. a sata based on fpga chip extends framework, it is characterized in that, comprise sata host adapter and sata device adapter, wherein sata host adapter is used for realizing sata transport layer functionality, sata device adapter is used for realizing sata link layer and physical layer function, communicates based on aurora agreement between sata host adapter and sata device adapter；
nullDescribed sata host adapter comprises the first pcb board、PCIe interface、First fpga chip，Described first fpga chip and PCIe interface are arranged on the first pcb board，Described first fpga chip comprises PCIe control module、At least one sata transport layer module、For sata Yu the aurora data management module mutually converted between sata data and aurora data and two aurora control modules，Described PCIe control module is connected with described PCIe interface，Described sata transport layer module respectively with described PCIe control module、Oneth sata with aurora data management module is connected，Said two aurora control module is connected with described sata with an aurora data management module.
Sata based on fpga chip the most according to claim 1 extends framework, it is characterised in that described sata device adapter comprises the stat that the second pcb board, the second fpga chip are identical with the quantity of described sata transport layer module
Pm chip and the sata interface identical with the quantity of described sata transport layer module, described second fpga chip, stat
nullPm chip、Sata interface is arranged on the second pcb board，Described second fpga chip comprises two aurora control modules、For the 2nd sata Yu the aurora data management module mutually converted between sata data and aurora data、The sata link layer module identical with the quantity of described sata transport layer module、And the sata physical layer block identical with the quantity of described sata transport layer module，Two aurora control modules of described sata device adapter are connected by minisas line is corresponding with two aurora control modules in described first fpga chip respectively，Described 2nd sata Yu aurora data management module is respectively and described sata link layer module、Two aurora control modules of described sata device adapter are connected，Described sata link layer module is corresponding with described sata physical layer block to be connected，Described sata physical layer block and described stat
Pm chip correspondence is connected, and described stat pm chip is corresponding with described sata interface to be connected.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103106169A (en) * | 2013-01-28 | 2013-05-15 | 无锡众志和达存储技术股份有限公司 | High speed bus interface expansion structure based on aurora protocol |
| CN103455283A (en) * | 2013-08-19 | 2013-12-18 | 华中科技大学 | Hybrid storage system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103106169A (en) * | 2013-01-28 | 2013-05-15 | 无锡众志和达存储技术股份有限公司 | High speed bus interface expansion structure based on aurora protocol |
| CN103455283A (en) * | 2013-08-19 | 2013-12-18 | 华中科技大学 | Hybrid storage system |
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Address after: 214028 Jiangsu Province, Wuxi City District Zhenze Road No. 18 Wuxi Software Park Building 6 layer A Taurus Patentee after: WUXI NORTH DATA COMPUTING CO.,LTD. Address before: 214028 Jiangsu Province, Wuxi City District Zhenze Road No. 18 Wuxi Software Park Building 6 layer A Taurus Patentee before: WUXI SOUL DATA COMPUTING Co.,Ltd. |
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