CN104333500B - A kind of signal conversion method, apparatus and system - Google Patents

Abstract

The embodiment of the invention discloses a signal conversion method, device and system, which relate to the communication field and can directly convert fast channel interconnection QPI domain network signals and infinite interconnection IB domain network signals. The method comprises: extracting the destination node address DNID field of the QPI message, obtaining the local address LID field of the IB message corresponding to the DNID field, using the LID field as the message header of the converted IB message, and using the QPI message as the converted The data field of the IB message is packaged into a converted IB message; or, the data field of the IB message is extracted, and the data field of the IB message is packaged into a converted QPI message. The embodiment of the present invention is applied to the conversion of fast channel interconnected domain network signals and wireless interconnected domain network signals.

Description

A signal conversion method, device and system

technical field

The present invention relates to the communication field, in particular to a signal conversion method, device and system.

Background technique

IB (InfiniBand, infinite interconnection) is a unified interconnection structure, which is applied to the communication between servers, servers and storage devices, and servers and networks. IB switches route packets through subnets, and IB routers connect multiple subnets together. Compared with Ethernet, IB can be managed in a more decentralized manner. There is a manager in each subnet, which plays a decisive role in routing packets, mapping network topology, providing multiple links in the network, and monitoring performance. Therefore, the connection between the IB domain network and the CPU is very common.

The current method of connecting the CPU to the IB domain network is mainly to place the CPU in the PCIe (Peripheral Component Interconnect express, high-speed peripheral component interconnection standard) domain, and realize the connection between the CPU and the IB domain network through the connection between the PCIe domain and the IB domain, or The CPU will be placed in the Ethernet (Ethernet) domain, and the connection between the CPU and the IB domain network will be realized through the connection between the Ethernet domain and the IB domain.

QPI (Quick Path Interconnect) is a serial high-speed point-to-point connection protocol based on packet transmission. It uses differential signals and special clocks for transmission to achieve direct interconnection between chips, mainly for processors. Interconnect communication between and among system components. Due to the advantages of high peak bandwidth and upgradeability of the architecture itself, QPI is generally applicable to the architecture of integrated memory controllers in processors.

At present, the code rate conversion rate of the PCIe and Ethernet domains is low, resulting in low information conversion efficiency between the CPU and the IB domain, and the code rate conversion rate of the QPI domain is relatively high. However, when the CPU is configured in the QPI domain, there is currently no QPI domain and A direct connection to the IB domain or a method to achieve signal conversion.

Contents of the invention

Embodiments of the present invention provide a signal conversion method, device and system, which can convert QPI messages and IB messages to each other, thereby realizing the connection between the QPI domain and the IB domain.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, a signal conversion method is provided, including:

Receiving the fast channel interconnection QPI message, the fast channel interconnection message including the destination node address DNID;

According to the destination node address, look up the local address LID of the Infinity Internet IB message corresponding to the destination node address in the routing table;

Converting the fast channel interconnection message into an unlimited interconnection message, wherein the header of the unlimited interconnection message includes a local address, and the data field of the unlimited interconnection message includes the fast channel interconnection message;

Send the wireless interconnection message to the wireless interconnection domain according to the port identifier of the wireless interconnection domain in the routing table.

With reference to the first aspect, in a first possible implementation manner, the sending the wireless interconnection message to the wireless interconnection domain according to the port identifier of the wireless interconnection domain in the routing table specifically includes:

Querying the routing table, and obtaining the port identifier of the Infinity Interconnection domain corresponding to the Infinity Interconnection message according to the local address field of the Infinity Interconnection message;

Send the wireless interconnection message to the corresponding device in the wireless interconnection domain through the wireless interconnection port corresponding to the port identifier of the wireless interconnection domain;

The routing table includes: the destination node address field of the fast channel interconnection message, the mapping relationship between the local address field of the infinite interconnection message and the port identifier of the infinite interconnection domain.

In a second aspect, a signal conversion method is provided, including:

Receive an infinite interconnection IB message, the data field of the infinite interconnection message includes a fast channel interconnection QPI message;

Extracting the fast channel interconnection message in the data field of the unlimited interconnection message;

Send the fast channel interconnection message to the fast channel interconnection domain according to the port identifier of the fast channel interconnection domain in the routing table.

With reference to the second aspect, in a first possible implementation manner, the sending the fast channel interconnection message to the fast channel interconnection domain according to the port identifier of the fast channel interconnection domain in the routing table specifically includes:

According to the destination node address DNID of the fast channel interconnection message, look up the port identifier of the fast channel interconnection domain corresponding to the destination node address in the routing table;

Send the fast channel interconnection message to the corresponding device in the fast channel interconnection domain through the fast channel interconnection port corresponding to the port identifier of the fast channel interconnection domain;

The routing table includes: a mapping relationship between the destination node address of the fast channel interconnection message and the port identifier of the fast channel interconnection domain.

In a third aspect, a signal conversion device is provided, including a port unit, a routing conversion unit, and a message conversion unit:

The port unit is used to receive a fast channel interconnection QPI message, and the fast channel interconnection message includes a destination node address DNID;

The routing conversion unit is used to search the routing table for the local address LID of the Infinity Internet IB message corresponding to the destination node address according to the destination node address of the fast channel interconnection message received by the port unit;

The message conversion unit is used to convert the fast channel interconnection message into an infinite interconnection message, wherein the header of the infinite interconnection message includes the local address obtained by the routing conversion unit, and the infinite interconnection The data field of the message includes the fast channel interconnection message;

The port unit is further configured to send the wireless interconnection message converted by the message conversion unit to the wireless interconnection domain according to the port identifier of the wireless interconnection domain in the routing table.

With reference to the third aspect, in a first possible implementation manner, the port unit includes: a query subunit and a sending subunit;

The query subunit is used to query the routing table, and obtain the port identifier of the wireless Internet domain corresponding to the wireless Internet message according to the local address field of the wireless Internet message;

The sending subunit is configured to send the wireless interconnection message to the corresponding device in the wireless interconnection domain through the wireless interconnection port corresponding to the port identifier of the wireless interconnection domain obtained by the query subunit;

The routing table includes: the destination node address field of the fast channel interconnection message, the mapping relationship between the local address field of the infinite interconnection message and the port identifier of the infinite interconnection domain.

In a fourth aspect, a signal conversion device is provided, including: a port unit and a message conversion unit;

The port unit is used to receive the wireless interconnection IB message, and the data field of the wireless interconnection message includes a fast channel interconnection QPI message;

The message conversion unit is used to extract the fast channel interconnection message in the data field of the wireless interconnection message received by the port unit;

The port unit is further configured to send the fast-path interconnection message extracted by the message conversion unit to the fast-path interconnection domain according to the port identifier of the fast-path interconnection domain in the routing table.

With reference to the fourth aspect, in a first possible implementation manner, the port unit includes a query subunit and a sending subunit;

The query subunit is used to search the routing table for the port identifier of the fast channel interconnection domain corresponding to the destination node address according to the destination node address DNID of the fast channel interconnection message;

The sending subunit is configured to send the fast channel interconnection message to the corresponding device in the fast channel interconnection domain through the fast channel interconnection port corresponding to the port identifier of the fast channel interconnection domain obtained by the query subunit;

The routing table includes: a mapping relationship between the destination node address of the fast channel interconnection message and the port identifier of the fast channel interconnection domain.

In the fifth aspect, a network system is provided, including a fast-path interconnection QPI domain interconnection network and an infinite interconnection IB domain interconnection network, and the fast-path interconnection domain interconnection network and the infinite interconnection domain interconnection network are connected through the above-mentioned signal conversion device.

The signal conversion method, device, and system provided by the embodiments of the present invention realize QPI by converting QPI messages into IB messages, or converting IB messages into QPI messages, and converting QPI messages and IB messages. The signal conversion between domain network and IB domain network realizes the connection between QPI domain network and IB domain network.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only are some embodiments of the present invention.

FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a signal conversion device provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another signal conversion device provided by an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a signal conversion device provided by another embodiment of the present invention;

Fig. 5 is a schematic structural diagram of another signal conversion device provided by another embodiment of the present invention;

Fig. 6 is a schematic structural diagram of another signal conversion device provided by another embodiment of the present invention;

FIG. 7 is a schematic flowchart of a signal conversion method provided by an embodiment of the present invention;

FIG. 8 is a schematic flowchart of another signal conversion method provided by an embodiment of the present invention;

FIG. 9 is a schematic flowchart of a signal conversion method provided by another embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Embodiments of the present invention provide a signal conversion method, device and system, which are applied in a communication system to realize signal conversion between a QPI domain network and an IB domain network, thereby realizing the connection between the QPI domain network and the IB domain network. Specifically, an embodiment of the present invention provides a network system, as shown in FIG. 1 , including at least one signal conversion device 2, and the signal conversion device 2 is used to connect the QPI domain network 1a and the IB domain network 1b.

Wherein, referring to FIG. 2 , the signal conversion device 2 includes a port unit 21 , a routing conversion unit 22 and a packet conversion unit 23 .

The port unit 21 is used for the port unit to receive a quickpath interconnection QPI message, and the quickpath interconnection message includes a destination node address (Destination Node Identification, DNID).

The routing conversion unit 22 is configured to search the routing table for the local address (LocalIdentification, LID) of the Infinity Internet IB message corresponding to the destination node address according to the destination node address of the fast channel interconnection message received by the port unit 21.

The message conversion unit 23 is used to convert the fast channel interconnection message into the unlimited interconnection message, wherein the packet header of the unlimited interconnection message includes the local address obtained by the routing conversion unit 22, and the data field of the unlimited interconnection message includes the fast channel Internet message.

The port unit 21 is further configured to send the wireless interconnection message converted by the message conversion unit 23 to the wireless interconnection domain according to the port identifier of the wireless interconnection domain in the routing table.

In this way, the message of the QPI domain network in the communication system is converted into the message of the IB domain network, thereby realizing the signal conversion between the QPI domain network and the IB domain network.

Optionally, as shown in FIG. 3 , the port unit 21 includes: a query subunit 211 and a sending subunit 212 .

The query subunit 211 is used to query the routing table, and obtain the port identifier of the Infinity Internet domain corresponding to the Infinity Internet message according to the local address field of the Infinity Internet message.

The sending subunit 212 is configured to send the wireless interconnection message to the corresponding device in the wireless interconnection domain through the wireless interconnection port corresponding to the port identifier of the wireless interconnection domain acquired by the query subunit 211 .

Specifically, the routing table is shown in Table 1 below: including the mapping relationship between the destination node address field of the fast channel interconnection message, the local address field of the Infinity Internet message, and the port identifier of the Infinity Internet domain.

Table 1

DNID field of QPI message LID field of IB message Port ID of the IB domain DNID1 LID1 Port ID 1 DNID2 LID2 Port ID 2 ... ... ... DNIDn LID Port ID n

Wherein, the port unit is an ordinary input and output IO port unit, including a packet parser, which is used for packet encapsulation, decapsulation, and cyclic redundancy check code (Cyclic Redundancy Check, CRC) detection.

The signal conversion device provided by the embodiment of the present invention realizes QPI domain network and IB by packaging QPI message into IB message, or packing IB message into QPI message, and converting QPI message and IB message. The signal conversion of the domain network realizes the high-speed connection between the CPU of the QPI domain network and the IB domain network.

An embodiment of the present invention also provides a signal conversion device. Specifically, as shown in FIG. 4 , the signal conversion device 4 includes a port unit 41 and a packet conversion unit 42 .

The port unit 41 is used for receiving the wireless interconnection IB message, and the data field of the wireless interconnection message includes a quick path interconnection QPI message.

The message converting unit 42 is configured to extract the fast channel interconnection message in the data field of the wireless interconnection message received by the port unit 41 .

The port unit 41 is further configured to send the fast-path interconnection message extracted by the message converting unit 42 to the fast-path interconnection domain according to the port identifier of the fast-path interconnection domain in the routing table.

Optionally, as shown in FIG. 5 , the port unit 41 includes a query subunit 411 and a sending subunit 412 .

The query subunit 411 is configured to search the routing table for the port identifier of the fast-path interconnection domain corresponding to the destination node address according to the destination node address DNID of the fast-path interconnection message.

The sending subunit 412 is configured to send the fastpath interconnection message to the corresponding device in the fastpath interconnection domain through the fastpath interconnection port corresponding to the port identifier of the fastpath interconnection domain acquired by the query subunit 411 .

The routing table, as shown in Table 2 below, includes: the mapping relationship between the destination node address of the fast channel interconnection message and the port identifier of the fast channel interconnection domain.

Table 2

DNID field of QPI message Port ID of the QPI domain DNID1 Port ID 1 DNID2 Port ID 2 ... ... DNIDn Port ID n

The signal conversion device provided by the embodiment of the present invention realizes QPI domain network and IB by packaging QPI message into IB message, or packing IB message into QPI message, and converting QPI message and IB message. The signal conversion of the domain network realizes the high-speed connection between the CPU of the QPI domain network and the IB domain network.

Another embodiment of the present invention provides a signal conversion device, its structure is shown in Figure 6, the signal conversion device includes: at least one processor 61, data bus 62, memory 63 and communication port 64, at least one 61. The memory 63 and the communication port 66 are connected through the data bus 62 and complete mutual communication, wherein:

The data bus 62 may be an industry standard architecture ISA bus, a peripheral device interconnection PCI bus or an extended industry standard architecture EISA bus or the like. The data bus 62 can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 6 , but it does not mean that there is only one bus or one type of bus.

The memory 63 is used to store executable program codes, which include computer operation instructions. The memory 63 may include a high-speed RAM memory, and may also include a non-volatile memory. In the present invention, the memory at least includes a storage space of the memory 63 for storing a routing table.

The processor 61 may be a central processing unit CPU, or an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

The communication port 64 is used to realize the function of the processor 61, to receive or send messages from the network.

The processor 61 is also used to call the program code in the memory 63 to execute the operations of the route conversion unit 22 and the message conversion unit 23 in the above device embodiment, or to execute the message conversion unit 42 in the above device embodiment For specific descriptions of the operation, refer to the device embodiment corresponding to FIG. 2 or FIG. 4 , and details are not repeated here.

The signal conversion device provided by the embodiment of the present invention realizes QPI domain network and IB domain by packaging QPI message into IB message, or packaging IB message into QPI message, and converting QPI message and IB message. The signal conversion of the network realizes the high-speed connection between the QPI domain network CPU and the IB domain network.

The embodiment of the present invention also provides a signal conversion method, which is applied to the signal conversion device provided in the above device embodiment, as shown in FIG. 7 , including:

701. The signal conversion device receives a fast path interconnection QPI message, where the fast path interconnection message includes a destination node address DNID.

702. The signal conversion device searches the routing table for the local address LID of the Infinity Interconnection IB packet corresponding to the destination node address according to the destination node address.

703. The signal conversion device converts the fast-path interconnection message into an unlimited interconnection message, wherein the packet header of the unlimited-interconnection message includes a local address, and the data field of the unlimited-channel interconnection message includes the fast-track interconnection message.

704. The signal conversion device sends the Infinity Interconnection packet to the Infinity Interconnection Domain according to the port identifier of the Infinity Interconnection Domain in the routing table.

Wherein the routing table is as shown in Table 1 in the above-mentioned device embodiment, including: the destination node address field of the fast channel interconnection message, the mapping relationship between the local address field of the Infinity Internet message and the port identifier of the Infinity Internet domain

Optionally, step 704 specifically includes:

704a. The signal conversion device queries the routing table, and obtains the port identifier of the Infinity Interconnection domain corresponding to the Infinity Interconnection message according to the local address field of the Infinity Interconnection message.

704b. The signal conversion device sends the wireless interconnection message to the corresponding device in the wireless interconnection domain through the wireless connection port corresponding to the port identifier of the wireless connection domain.

In this way, the message of the IB domain network in the communication system is converted into the message of the QPI domain network, thereby realizing the signal conversion between the CPU interconnection domain network and the IB domain network.

The embodiment of the present invention also provides a signal conversion method, which is applied to the signal conversion device provided in the above device embodiment, as shown in FIG. 8 , including:

801. The signal conversion device receives an Infinity Interconnection IB message, and the data field of the Infinity Interconnection message includes a Quick Path Interconnection QPI message.

802. The signal conversion device extracts the fast channel interconnection message in the data field of the unlimited interconnection message.

803. The signal conversion device sends the fast-path interconnection message to the fast-path interconnection domain according to the port identifier of the fast-path interconnection domain in the routing table.

The routing table is shown in Table 2 in the above device embodiment, including: the mapping relationship between the destination node address of the express channel interconnection message and the port identifier of the express channel interconnection domain.

Optionally, step 803 specifically includes:

803a. The signal conversion device searches the routing table for the port identifier of the fastpath interconnection domain corresponding to the destination node address according to the destination node address DNID of the fastpath interconnection message.

803b. The signal conversion device sends the fast-lane interconnection message to the corresponding device in the fast-lane interconnection domain through the fast-lane interconnection port corresponding to the port identifier of the fast-lane interconnection domain.

In this way, the message of the QPI domain network is converted into the message of the IB domain network, thereby realizing the signal conversion between the CPU interconnection domain network and the IB domain network.

The signal conversion method provided by the embodiment of the present invention realizes QPI domain network and IB by packaging QPI message into IB message, or packing IB message into QPI message, and converting QPI message and IB message. The signal conversion of the domain network realizes the high-speed connection between the CPU of the QPI domain network and the IB domain network.

The embodiment of the present invention also provides an Internet signal conversion method, which is applied to the signal conversion device provided in the above-mentioned device embodiment, as shown in FIG. 9 , specifically including:

901. The signal conversion device receives a message.

902. The signal converting device detects a port for receiving the message.

When the port that receives the message is a fast channel interconnection port, implement solution 1:

903a. Determine that the message is a fast channel interconnection message, and perform a cyclic redundancy check code check on the fast channel interconnection message.

904a. Extract the destination node address field of the fast channel interconnection message, and search the local address of the Infinity Internet message corresponding to the destination node address in the first routing table stored in the signal conversion device, wherein the first routing table is as in the above device embodiment As shown in Table 1, it includes: the mapping relationship between the destination node address field of the fast channel interconnection message, the local address field of the Infinity Internet message, and the port identifier of the Infinity Internet domain.

905a. Convert the fast channel interconnection message into an infinite interconnection message, wherein the local address field is used as the packet header of the converted infinite interconnection message, and the fast channel interconnection message is used as the data of the converted infinite interconnection message field, and pack the header of the converted wireless interconnection message and the data field of the converted wireless connection message into the converted wireless connection message.

906a. Query the first routing table, and obtain the port identifier corresponding to the converted wireless interconnection packet according to the local address field of the converted wireless interconnection packet.

907. According to the port identifier corresponding to the converted wireless interconnection packet, send the converted wireless interconnection packet to the corresponding device in the wireless interconnection domain through the wireless interconnection port corresponding to the port identifier.

When the port receiving the message is an unlimited interconnection port, execute the second plan:

903b. Determine that the packet is an infinite interconnection packet, and perform a cyclic redundancy check code check on the infinite interconnection packet.

904b. Extract the data field of the wireless interconnection message.

905b. Use the data field of the unlimited interconnection message as a converted fast channel interconnection message.

906b. Query the second routing table, and obtain the port identifier corresponding to the converted fast channel interconnection message according to the destination node address field of the converted fast channel interconnection message.

907. According to the corresponding port identifier of the converted fastlane interconnection message, the fastlane interconnection port corresponding to the port identifier sends the converted fastlane interconnection message to the corresponding device in the fastlane interconnection domain.

The second routing table, as shown in Table 2 in the above device embodiment, includes: the mapping relationship between the destination node address field of the express channel interconnection message and the port identifier of the express channel interconnection domain.

In this way, through the method provided by the first solution and the method provided by the second solution, the mutual conversion between the QPI message and the IB message is realized.

The signal conversion method provided by the embodiment of the present invention realizes QPI domain network and The signal conversion of the IB domain network realizes the connection between the QPI domain network and the IB domain network.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (9)

1. A kind of 1. signal conversion method, it is characterised in that：

   Quick Path Interconnect QPI messages are received, the Quick Path Interconnect message includes destination node address D NID；

   According to the destination node address, search IB messages are infinitely interconnected corresponding to the destination node address in the routing table Local address LID；

   The Quick Path Interconnect message is converted into unlimited interconnection message, wherein, the heading bag of the unlimited interconnection message Local address is included, the data field of the unlimited interconnection message includes the Quick Path Interconnect message；

   According to the port-mark of unlimited interworking domain in the routing table, the unlimited interconnection message is sent to unlimited interworking domain； The routing table includes：The local address field of the destination node address field of Quick Path Interconnect message, unlimited interconnection message With the mapping relations of the port-mark of unlimited interworking domain.
2. 2. signal conversion method according to claim 1, it is characterised in that described infinitely to be interconnected according in the routing table The port-mark in domain, the unlimited interconnection message is sent to unlimited interworking domain, specifically included：

   The routing table is inquired about, according to the local address field of the unlimited interconnection message, obtains the unlimited interconnection message pair The port-mark for the unlimited interworking domain answered；

   The unlimited interconnection message is sent to institute by unlimited interconnection port corresponding to the port-mark of the unlimited interworking domain State the corresponding device of unlimited interworking domain.
3. A kind of 3. signal conversion method, it is characterised in that：

   Unlimited interconnection IB messages are received, the data field of the unlimited interconnection message includes Quick Path Interconnect QPI messages；

   Extract the Quick Path Interconnect message in the data field of the unlimited interconnection message；

   The port-mark in the Quick Path Interconnect domain in routing table, the Quick Path Interconnect message is sent to quick logical Road interworking domain；The routing table, including：The destination node address of Quick Path Interconnect message and the port in Quick Path Interconnect domain The mapping relations of mark.
4. 4. signal conversion method according to claim 3, it is characterised in that the express passway in routing table is mutual Join the port-mark in domain, the Quick Path Interconnect message is sent to Quick Path Interconnect domain, specifically included：

   According to the destination node address D NID of the Quick Path Interconnect message, the destination node is searched in the routing table The port-mark in Quick Path Interconnect domain corresponding to address；

   By Quick Path Interconnect port corresponding to the port-mark in the Quick Path Interconnect domain by the Quick Path Interconnect Message is sent to the corresponding device in the Quick Path Interconnect domain.
5. 5. a kind of chromacoder, it is characterised in that including port unit, route converting unit and message converting unit：

   The port unit is used to receive Quick Path Interconnect QPI messages, and the Quick Path Interconnect message includes destination node Address D NID；

   The route converting unit is used for the destination node of the Quick Path Interconnect message received according to the port unit Address, the infinitely local address LID of interconnection IB messages corresponding to the destination node address is searched in the routing table；

   The message converting unit is used to the Quick Path Interconnect message being converted to unlimited interconnection message, wherein, the nothing The heading of limit interconnection message includes the local address that the route converting unit obtains, the data word of the unlimited interconnection message Section includes the Quick Path Interconnect message；

   The port unit, the port-mark according to unlimited interworking domain in the routing table is additionally operable to, the message is changed single The unlimited interconnection message of member conversion is sent to unlimited interworking domain；The routing table includes：The purpose section of Quick Path Interconnect message The local address field and the mapping relations of the port-mark of unlimited interworking domain of dot address field, unlimited interconnection message.
6. 6. chromacoder according to claim 5, it is characterised in that the port unit includes：Inquire about subelement And transmission sub-unit；

   The inquiry subelement is used to inquire about the routing table, according to the local address field of the unlimited interconnection message, obtains The port-mark of unlimited interworking domain corresponding to the unlimited interconnection message；

   The transmission sub-unit is used for unlimited corresponding to the port-mark of the unlimited interworking domain obtained by the inquiry subelement Interconnection port sends the unlimited interconnection message to the corresponding device of the unlimited interworking domain.
7. A kind of 7. chromacoder, it is characterised in that including：Port unit and message converting unit；

   The port unit is used to receive unlimited interconnection IB messages, and the data field of the unlimited interconnection message includes express passway Interconnect QPI messages；

   It is described in the data field for the unlimited interconnection message that the message converting unit receives for extracting the port unit Quick Path Interconnect message；

   The port unit is additionally operable to the port-mark in the Quick Path Interconnect domain in routing table, the message is changed single The Quick Path Interconnect message of member extraction is sent to Quick Path Interconnect domain；The routing table, including：Quick Path Interconnect message Destination node address and Quick Path Interconnect domain port-mark mapping relations.
8. 8. chromacoder according to claim 7, it is characterised in that the port unit include inquiry subelement and Transmission sub-unit；

   The inquiry subelement is used for the destination node address D NID according to the Quick Path Interconnect message, in the routing table The middle port-mark for searching Quick Path Interconnect domain corresponding to the destination node address；

   The transmission sub-unit is used for corresponding to the port-mark in the Quick Path Interconnect domain obtained by the inquiry subelement Quick Path Interconnect port sends the Quick Path Interconnect message to the corresponding device in the Quick Path Interconnect domain.
9. 9. a kind of network system, including Quick Path Interconnect QPI domains internet and unlimited interconnection IB domains internet, its feature It is：

   Quick Path Interconnect domain internet is turned with unlimited interworking domain internet by the signal described in claim 5-8 Changing device connects.