CN111158759A - Storage software implementation method and system based on Rapidio drive - Google Patents
Storage software implementation method and system based on Rapidio drive Download PDFInfo
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Abstract
The invention provides a method and a system for realizing storage software based on Rapidio drive, which comprises the following steps: the client side transmits data: in the VxWorks system, a client transmits data to a server through a custom application protocol to realize remote data storage; the server side processes the data: in a Linux system, a server processes data to realize remote data storage. The transmission protocol is self-defined, the overhead of a protocol stack is reduced, high-speed transmission is realized, the system scale is reduced, and the system starting time is reduced. The use mode of the memory is optimized, unnecessary interaction and data copying are removed, and the transmission speed is further improved.
Description
Technical Field
The invention relates to the field of high-speed network storage, in particular to a method and a system for realizing storage software based on Rapidio drive.
Background
A traditional network file system NFS based on a Rapidio bus between a VxWorks system and a Linux system uses a TCP/IP over Rapidio transplanting scheme, the cost of running a TCP/IP over Rapidio protocol stack on the network file system is huge, the running test speed is only about 20MB/s, the high-speed characteristic of the Rapidio bus cannot be embodied, and the storage requirement of a high-speed network cannot be met.
The traditional NFS interface is based on network file storage of a Linux system TCP/IP protocol, the characteristic of a VxWorks system is not considered, the interface is single, only the file storage is realized, only the traditional file can be transmitted, and the application use range is narrow and cannot be expanded.
The Rapidio bus hardware has a data integrity measure which is different from the Ethernet, so that repeated data integrity and consistency guarantee measures can be not required to be carried out on a software layer. The custom interface can meet various storage requirements of the application.
Patent document CN106844249A (application number: 201611111849.1) discloses a RAID storage system and method based on RapidIO bus, the system includes RapidIO CPU node module, RapidIO storage module, RapidIO switching network module, wherein: the RapidIO CPU node module executes RapidIO drive, Rapi IO storage drive, MEM system and the like; the RapidIO storage module is mainly a switching network consisting of RapidIO switching chips; the RapidIO switching network module consists of an RAID array consisting of an FPGA chip and n SATA hard disks, and the FPGA chip is connected with the RAID array.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for realizing storage software based on Rapidio drive.
The invention provides a storage software implementation method based on Rapidio drive, which comprises the following steps:
the client side transmits data: in the VxWorks system, a client transmits data to a server through a custom application protocol to realize remote data storage;
the server side processes the data: in a Linux system, a server processes data to realize remote data storage.
Preferably, the client terminal data transmission step includes:
an initialization step: when a VxWorks system is started, applying for a cache space and executing a transmission management step for an initialization process of a Rapidio bus;
a storage step: realizing the storage of an interface, including file storage, block storage and stream storage, and dividing the file and executing a transmission management step of a client bottom layer;
a client bottom layer transmission management step: the transmission on the Rapidio bus is an information processing process, a Rapidio drive interface is called to interact with a server on a Linux system, and the data are transmitted at a high speed.
Preferably, the server-side processing data step includes:
a service end bottom layer transmission management step: interacting with a client to realize client management and data reception, copying data to a memory cache space, and executing a back-end storage step;
memory caching: the data of the client is kept in the memory cache space, so that the asynchronous storage of the data is ensured, the overall storage speed is improved, and the synchronous slow bottleneck of an external memory is eliminated;
a server management step: in a Linux system, managing various signals of a daemon process of a server, initializing a memory caching step and a transmission management step of a bottom layer of the server;
a back-end storage step: the storage is subjected to destage, data in the memory cache space are managed and processed, and permanent storage of the data is realized;
the memory cache space: caching data from a client;
and the client bottom layer management step and the service end bottom layer transmission management step are executed in a matching way, and the protocol transmission of an application layer is realized together.
Preferably, different storage mode processing procedures are combined with different storage interfaces of the client to finally meet various storage requirements of the application.
The invention provides a storage software implementation system based on Rapidio drive, which comprises:
a client module: the VxWorks system is a front-end use interface and is responsible for transmitting data to a server through a user-defined application protocol, and each process in the VxWorks system uses each interface provided by storage software to realize remote data storage;
a server module: the Linux system is a back-end storage server and is responsible for processing data and storing remote data.
Preferably, the client module comprises:
an initialization module: when a VxWorks system is started, applying for a cache space and starting a transmission management module for an initialization process of a Rapidio bus;
a storage module: the method comprises the steps of realizing storage of an interface, including file storage, block storage and stream storage, and dividing a file and informing a transmission management module at the bottom layer of a client;
a client bottom layer transmission management module: the transmission is carried out on the Rapidio bus, which is an information processing process, the Rapidio driving interface is called to interact with a server side on a Linux system, the data are transmitted at high speed, and the storage interface module is informed when the transmission is finished.
Preferably, the server module includes:
a server bottom layer transmission management module: interacting with a client to realize client management and data reception, copying data to a memory cache space, managing and informing a back-end storage module to process;
a memory cache module: the data of the client is kept in the memory cache space, so that the asynchronous storage of the data is ensured, the overall storage speed is improved, and the synchronous slow bottleneck of an external memory is eliminated;
the server management module: in a Linux system, various signals of a daemon process of a server side are managed, and a memory cache module and a server side bottom layer transmission management module are initialized;
a back-end storage module: the storage is subjected to disk dropping, a memory cache module is managed, and data in the memory cache module is processed to realize permanent storage of the data;
the memory cache space: caching data from a client;
and the client bottom layer management module and the service bottom layer transmission management module are used in a matching way to jointly realize protocol transmission of an application layer.
Preferably, different storage mode processing procedures are combined with different storage interfaces of the client to finally meet various storage requirements of the application.
According to the present invention, there is provided a computer readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the steps of the method of any of the above.
Compared with the prior art, the invention has the following beneficial effects:
1. the transmission protocol is self-defined, the overhead of a protocol stack is reduced, high-speed transmission is realized, the system scale is reduced, and the system starting time is reduced.
2. The use mode of the memory is optimized, unnecessary interaction and data copying are removed, and the transmission speed is further improved.
3. And multiple scribing transmission algorithms are adopted, so that file storage, block storage and stream storage interfaces are realized, and multiple application requirements are met.
4. The storage speed is greatly improved, the interface data transmission speed is improved to the lower limit of the speed of a Rapidio bus and a memory, and 560MB/s is achieved at the fastest speed in the test process.
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Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic diagram of a module structure provided by the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The invention provides a storage software implementation method based on Rapidio drive, which comprises the following steps:
the client side transmits data: in the VxWorks system, a client transmits data to a server through a custom application protocol to realize remote data storage;
the server side processes the data: in a Linux system, a server processes data to realize remote data storage.
Specifically, the step of transmitting data by the client includes:
an initialization step: when a VxWorks system is started, applying for a cache space and executing a transmission management step for an initialization process of a Rapidio bus;
a storage step: realizing the storage of an interface, including file storage, block storage and stream storage, and dividing the file and executing a transmission management step of a client bottom layer;
a client bottom layer transmission management step: the transmission on the Rapidio bus is an information processing process, a Rapidio drive interface is called to interact with a server on a Linux system, and the data are transmitted at a high speed.
Specifically, the step of processing data by the server includes:
a service end bottom layer transmission management step: interacting with a client to realize client management and data reception, copying data to a memory cache space, and executing a back-end storage step;
memory caching: the data of the client is kept in the memory cache space, so that the asynchronous storage of the data is ensured, the overall storage speed is improved, and the synchronous slow bottleneck of an external memory is eliminated;
a server management step: in a Linux system, managing various signals of a daemon process of a server, initializing a memory caching step and a transmission management step of a bottom layer of the server;
a back-end storage step: the storage is subjected to destage, data in the memory cache space are managed and processed, and permanent storage of the data is realized;
the memory cache space: caching data from a client;
and the client bottom layer management step and the service end bottom layer transmission management step are executed in a matching way, and the protocol transmission of an application layer is realized together.
Specifically, different storage mode processing procedures are combined with different storage interfaces of the client to finally meet various storage requirements of the application.
The invention provides a storage software implementation system based on Rapidio drive, which comprises:
a client module: the VxWorks system is a front-end use interface and is responsible for transmitting data to a server through a user-defined application protocol, and each process in the VxWorks system uses each interface provided by storage software to realize remote data storage;
a server module: the Linux system is a back-end storage server and is responsible for processing data and storing remote data.
Specifically, the client module includes:
an initialization module: when a VxWorks system is started, applying for a cache space and starting a transmission management module for an initialization process of a Rapidio bus;
a storage module: the method comprises the steps of realizing storage of an interface, including file storage, block storage and stream storage, and dividing a file and informing a transmission management module at the bottom layer of a client;
a client bottom layer transmission management module: the transmission is carried out on the Rapidio bus, which is an information processing process, the Rapidio driving interface is called to interact with a server side on a Linux system, the data are transmitted at high speed, and the storage interface module is informed when the transmission is finished.
Specifically, the server module includes:
a server bottom layer transmission management module: interacting with a client to realize client management and data reception, copying data to a memory cache space, managing and informing a back-end storage module to process;
a memory cache module: the data of the client is kept in the memory cache space, so that the asynchronous storage of the data is ensured, the overall storage speed is improved, and the synchronous slow bottleneck of an external memory is eliminated;
the server management module: in a Linux system, various signals of a daemon process of a server side are managed, and a memory cache module and a server side bottom layer transmission management module are initialized;
a back-end storage module: the storage is subjected to disk dropping, a memory cache module is managed, and data in the memory cache module is processed to realize permanent storage of the data;
the memory cache space: caching data from a client;
and the client bottom layer management module and the service bottom layer transmission management module are used in a matching way to jointly realize protocol transmission of an application layer.
Specifically, different storage mode processing procedures are combined with different storage interfaces of the client to finally meet various storage requirements of the application.
According to the present invention, there is provided a computer readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the steps of the method of any of the above.
The present invention will be described more specifically below with reference to preferred examples.
Preferred example 1:
fig. 1 is a schematic diagram of a module structure provided by the present invention.
The software interface scheme comprises the following modules:
and the client module is used in the VxWorks system, is a front-end use interface and is responsible for transmitting the data of the caller to the server through a custom application protocol. Each process in the VxWorks system can use each interface provided by the storage software to store remote data;
and the server module is used in the Linux system, is a back-end storage server and is responsible for processing the data of each client according to the requirements and realizing the remote data storage work, namely the specific actual disk-dropping work.
The client module comprises the following modules:
the initialization module is used for applying for a cache space (namely a memory space required by local DMA) in the initialization process of the rapidio bus and starting the transmission management module at the bottom layer of the client when the VxWorks system is started;
the storage interface module is used for realizing a storage interface, including file storage, block storage and stream storage, scribing data which is transmitted by a user through a calling interface and needs to be stored, and informing the transmission management module at the bottom layer of a client;
the client-side bottom layer transmission management module is used for specific transmission actions on the Rapidio bus, is actually a message processing process, calls the Rapidio driving interface, interacts with a storage server on a Linux system, transmits data at a high speed, and informs the storage interface module when transmission is finished.
The server module comprises the following modules:
and the server bottom transmission management module is used for interacting with the client, realizing client management and data reception, copying data to the memory cache module, managing and informing the back-end storage module to process. The client bottom layer management module and the service bottom layer transmission management module are used in a matched mode, and the transmission protocol of an application layer is achieved together;
the memory cache module is used for retaining the data of the client in the memory, ensuring the asynchronous storage of the data, improving the overall storage speed and eliminating the synchronous slow bottleneck of an external memory;
and the back-end storage module is used for storing the disk-dropping action, managing the memory cache module, processing the data in the memory cache module and realizing the real permanent storage of the data. The processing process of different storage modes is combined with different storage interfaces of the client side to finally meet various storage requirements of the application.
And the server management module is used for various signal management of a server daemon in the Linux system, and initializing the memory cache module and the server bottom layer transmission management module.
The implementation example one:
in order to ensure high-speed transmission and reduce unnecessary memory data copy as much as possible, only a new message packet header is created when a client scribes, and a value field is only an address when a message is transmitted. And the client only has DMA once packet header and data when the bottom layer transmission management module runs.
Example two was performed:
aiming at multiple clients, the interface software only copies data in the SRIO address of the server to a cache region in an application layer, does not influence another DMA process, and completes complete one-time data transmission. In the communication interaction process, two ends of DMA data are required to call and drive synchronous reading and writing, so that the speed is reduced by half, the scheme uses a plurality of cache spaces to perform pseudo-pipelining operation, the space is changed in time to improve the overall transmission rate, and the affinity system is used to call the CPU which is used independently, so that the data is guaranteed to be copied into the cache in time.
Example three was performed:
the cache management adopts inertia management, the zone bit does not need to clean the cache, and the original data of the address is directly covered by the cache read-write each time, so that the memory operation times of the server side are reduced, and the cache efficiency is improved.
Example four:
and the server side adopts a multithread parallel processing disk-dropping process, takes < SRIO equipment number and VxWorks process number > as ID, establishes an IO processing thread for each process to establish a thread pool, improves the local IO speed and meets the requirement of simultaneously reading and writing multiple client sides.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. A storage software implementation method based on Rapidio drive is characterized by comprising the following steps:
the client side transmits data: in the VxWorks system, a client transmits data to a server through a custom application protocol to realize remote data storage;
the server side processes the data: in a Linux system, a server processes data to realize remote data storage.
2. The method for implementing storage software based on Rapidio driver as claimed in claim 1, wherein the step of transmitting data by the client comprises:
an initialization step: when a VxWorks system is started, applying for a cache space and executing a transmission management step for an initialization process of a Rapidio bus;
a storage step: realizing the storage of an interface, including file storage, block storage and stream storage, and dividing the file and executing a transmission management step of a client bottom layer;
a client bottom layer transmission management step: the transmission on the Rapidio bus is an information processing process, a Rapidio drive interface is called to interact with a server on a Linux system, and the data are transmitted at a high speed.
3. The method for implementing storage software based on Rapidio driver as claimed in claim 1, wherein the step of processing data by the server comprises:
a service end bottom layer transmission management step: interacting with a client to realize client management and data reception, copying data to a memory cache space, and executing a back-end storage step;
memory caching: the data of the client is kept in the memory cache space, so that the asynchronous storage of the data is ensured, the overall storage speed is improved, and the synchronous slow bottleneck of an external memory is eliminated;
a server management step: in a Linux system, managing various signals of a daemon process of a server, initializing a memory caching step and a transmission management step of a bottom layer of the server;
a back-end storage step: the storage is subjected to destage, data in the memory cache space are managed and processed, and permanent storage of the data is realized;
the memory cache space: caching data from a client;
and the client bottom layer management step and the service end bottom layer transmission management step are executed in a matching way, and the protocol transmission of an application layer is realized together.
4. The method for realizing storage software based on Rapidio drive as claimed in claim 1, wherein different storage mode processing procedures are combined with different storage interfaces of the client to finally meet various storage requirements of the application.
5. A storage software implementation system based on Rapidio drive is characterized by comprising:
a client module: the VxWorks system is a front-end use interface and is responsible for transmitting data to a server through a user-defined application protocol, and each process in the VxWorks system uses each interface provided by storage software to realize remote data storage;
a server module: the Linux system is a back-end storage server and is responsible for processing data and storing remote data.
6. The Rapidio-driven-based storage software implementation system according to claim 1, wherein the client module comprises:
an initialization module: when a VxWorks system is started, applying for a cache space and starting a transmission management module for an initialization process of a Rapidio bus;
a storage module: the method comprises the steps of realizing storage of an interface, including file storage, block storage and stream storage, and dividing a file and informing a transmission management module at the bottom layer of a client;
a client bottom layer transmission management module: the transmission is carried out on the Rapidio bus, which is an information processing process, the Rapidio driving interface is called to interact with a server side on a Linux system, the data are transmitted at high speed, and the storage interface module is informed when the transmission is finished.
7. The stored software implementation system based on Rapidio driver as claimed in claim 1, wherein the server module comprises:
a server bottom layer transmission management module: interacting with a client to realize client management and data reception, copying data to a memory cache space, managing and informing a back-end storage module to process;
a memory cache module: the data of the client is kept in the memory cache space, so that the asynchronous storage of the data is ensured, the overall storage speed is improved, and the synchronous slow bottleneck of an external memory is eliminated;
the server management module: in a Linux system, various signals of a daemon process of a server side are managed, and a memory cache module and a server side bottom layer transmission management module are initialized;
a back-end storage module: the storage is subjected to disk dropping, a memory cache module is managed, and data in the memory cache module is processed to realize permanent storage of the data;
the memory cache space: caching data from a client;
and the client bottom layer management module and the service bottom layer transmission management module are used in a matching way to jointly realize protocol transmission of an application layer.
8. The storage software implementation system based on Rapidio drive as claimed in claim 1, wherein different storage mode processing procedures are combined with different storage interfaces of the client to finally meet multiple storage requirements of the application.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106534178A (en) * | 2016-12-08 | 2017-03-22 | 中国电子科技集团公司第三十二研究所 | System and method for realizing RapidIO network universal socket |
| CN109451362A (en) * | 2018-07-25 | 2019-03-08 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | RapidIO network interface under VxWorks and implementation method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106534178A (en) * | 2016-12-08 | 2017-03-22 | 中国电子科技集团公司第三十二研究所 | System and method for realizing RapidIO network universal socket |
| CN109451362A (en) * | 2018-07-25 | 2019-03-08 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | RapidIO network interface under VxWorks and implementation method |
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Application publication date: 20200515 |