CN103731375B - A kind of FC port virtualization method, device - Google Patents

Abstract

The invention relates to the field of computer applications, and discloses a method and device for FC port virtualization. In this method, the FC port to be virtualized and the connected FC port are in an arbitrated loop Loop mode, and through the arbitrated loop formed between the two, the connection between the FC port to be virtualized and the connected FC port is realized. The information exchange among them can make the FC port to be virtualized generate address inquiry information according to the ring group leader, and load the address information of the virtual port in the address inquiry information, so as to make the FC port to be virtualized The host connected to the FC port can allocate port resources and establish a virtual port according to the loaded address information. In this process, it is only necessary that the FC port supports the Loop mode, and the basic function of the FC port is to support the Loop mode. It does not need to be configured at a high level, so virtualization can be realized without a high-level configuration of the FC port. Reduced costs.

Description

A kind of FC port virtualization method and device

technical field

The invention relates to the field of computer applications, in particular to an FC port virtualization method and device.

Background technique

Virtualization (Virtualization Technology, VT) technology first originated in the 1970s, when the IBM Research Center implemented host mirroring in the laboratory. In the following time, virtualization technology has become increasingly widely used. The so-called virtualization technology refers to the technology of dividing a physical computer software environment into multiple independent partitions, and each partition can simulate a complete computer according to requirements. The simulated computer is called a virtual machine (Virtual Machine, VM). The essence of virtualization technology is to realize the management and redistribution of computer resources through the middle layer to maximize the utilization of resources. The biggest benefit brought by virtualization partition is to enable the same physical platform to run multiple operating systems of the same type or different types at the same time. , as the supporting platforms for different businesses and applications.

For a virtualized system, it is necessary to support central processing unit (Central Processing Unit, CPU) virtualization, memory virtualization, and input/output (Input/Output, I/O) device virtualization. For I/O devices such as Fiber Channel (FC) ports, virtualization is currently implemented mainly through SR_IOV/MR_IOV chip technology or NPIV software technology. Among them, when the virtualization of the FC port is realized through the SR_IOV chip technology, the FC port with the SR_IOV function needs to report multiple virtual devices to the host, so that each virtual machine has a corresponding independent virtual device; it is realized through the MR_IOV chip technology When FC ports are virtualized, multiple virtual devices can share one FC port; when FC port virtualization is realized through NPIV software technology, it is necessary to connect the FC port to the switch, and the FC port sends the FDISC command to the switch, Obtain multiple virtual port addresses, thereby realizing the virtualization of FC ports.

However, the inventor found in the research process of this application that if the virtualization of FC ports is realized through SR_IOV/MR_IOV chip technology, then the FC ports must support SR_IOV or MR_IOV technology, which requires relatively high-cost FC ports; and through NPIV If software technology realizes the virtualization of FC ports, an additional switch must be configured, which is costly and unfavorable for large-scale applications.

Contents of the invention

In view of this, the object of the present invention is to provide a method, device and system for FC port virtualization, so as to reduce the cost of FC port virtualization.

The fiber channel FC port virtualization method is applied in an arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected to other FC ports, wherein the FC port to be virtualized is an arbitration A loop node in the loop, the FC port connected to it comprises a loop group leader, and the first aspect of the method includes:

Obtaining the address information of the virtual port transmitted by the host connected to the FC port to be virtualized;

receiving the address query information transmitted by the ring leader, and loading the address information of the virtual port into the address query information when the address query information satisfies the loading condition, so as to be compatible with the virtual port to be virtualized The host connected to the FC port allocates port resources according to the address information in the loaded address query information, and establishes a virtual port.

With reference to the first aspect, in a first possible implementation manner of the first aspect, when the address query information satisfies a loading condition, the method for loading the address information of the virtual port in the address query information includes :

receiving the switch assignment address inquiry information transmitted by the ring group leader, and loading the address information for the switch into the switch assignment address inquiry information when the address information of the virtual port contains the address information assigned to the switch assigned address information, and transmit the loaded switch assignment address query information to the ring leader, so that the ring leader generates the previous address query according to the received switch assignment address query information information; when the address information of the virtual port does not include the address information allocated for the switch, the received switch address allocation query information is transmitted to the ring leader, so that the ring leader generating previous address query information according to the received switch assignment address query information;

receiving the previous address query information transmitted by the ring leader, and loading the previous address query information into the previous address query information when the address information of the virtual port contains the address information allocated for the virtual port once used; address information assigned to the virtual port once used, and transmit the loaded pre-address inquiry information to the ring leader, so that the loop leader can generate Static hardware address query information; when the address information of the virtual port does not contain the address information allocated for the virtual port once used, the received previous address query information is transmitted to the ring leader , so that the ring leader generates static hardware address query information according to the received previous address query information;

receiving the static hardware address query information transmitted by the ring leader, and loading the static hardware address query information into the static hardware address query information when the address information of the virtual port contains address information allocated for the static hardware The address information assigned by the static hardware, and the loaded static hardware address query information is transmitted to the ring leader, so that the loop leader generates a software address according to the received static hardware address query information Inquiry information; when the address information of the virtual port does not contain address information allocated for static hardware, the received static hardware address inquiry information is transmitted to the ring leader, so that the ring The road team leader generates software address inquiry information according to the received static hardware address inquiry information;

receiving the software address query information transmitted by the ring leader, and loading the address information allocated by the software into the software address query information when the address information of the virtual port contains the address information allocated by the software; address information; when the address information of the virtual port does not include the address information allocated by the software, the software address query information is no longer loaded.

With reference to the first possible implementation of the first aspect, in the second possible implementation, after loading the address information of the virtual port in the address query information, the method further includes:

receiving the address report information transmitted by the ring leader;

The address information of each virtual port is loaded in the address report information, and the address report information loaded with the address information is transmitted to the ring leader, so that the ring leader can The address report information generates address notification information, and the address notification information includes the address information of each virtual port obtained according to the address report information;

The address notification information transmitted by the ring leader is received and stored in each virtual port.

The present invention also discloses another virtualization method for fiber channel FC ports, the method is applied in the arbitrated ring mode, in the arbitrated ring mode, the FC port to be virtualized is connected with other FC ports, wherein the The FC port to be virtualized is the ring leader in the arbitrated ring, and the FC port connected to it is a ring node, and the first aspect of the method includes:

Obtaining the address information of the virtual port transmitted by the host connected to the FC port to be virtualized;

Generate address query information, and when the address query information satisfies the loading condition, load the address information of the virtual port in the address query information, so that the host connected to the FC port to be virtualized The above address information is used to allocate port resources and establish virtual ports.

With reference to the first aspect, in a first possible implementation manner of the first aspect, when the address query information satisfies a loading condition, the method for loading the address information of the virtual port in the address query information includes :

Generate switch allocation address query information, when the address information of the virtual port contains the address information allocated for the switch, load the address information allocated for the switch in the switch allocation address query information, and The loaded switch assignment address inquiry information is transmitted to the ring node, so that the ring node returns the loaded switch assignment address inquiry information to the FC port to be virtualized; When the address information of the port does not include the address information allocated for the switch, the switch allocation address query information is transmitted to the ring node, so that the ring node returns the switch allocation address query information to the Describe the FC ports to be virtualized;

Generate previous address query information according to the received address query information assigned by the switch, and when the address information of the virtual port contains the address information allocated for the virtual port once used, the previous address query information Load the address information allocated for the virtual port once used, and transmit the pre-loaded address query information to the loop node, so that the loop node returns the loaded pre-address query information to The FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the virtual port once used, transmit the received previous address inquiry information to the loop node , so that the loop node returns the previous address query information to the FC port to be virtualized;

Generate static hardware address query information according to the received previous address query information, and when the address information of the virtual port includes address information allocated for static hardware, in the static hardware address query information loading the address information allocated for the static hardware, and transmitting the loaded static hardware address query information to the loop node, so that the loop node returns the loaded static hardware address query information to The FC port to be virtualized; when the address information of the virtual port does not include address information allocated for static hardware, the received static hardware address query information is transmitted to the ring node, so that The loop node returns the static hardware address query information to the FC port to be virtualized;

Generate software address query information according to the received static hardware address query information, and load the software address query information into the software address query information when the address information of the virtual port includes address information assigned by software address information assigned by software, and transmit the loaded software address query information to the loop node, so that the loop node returns the loaded software address query information to the to-be-virtualized FC port; when the address information of the virtual port does not include the address information assigned by the software, the received software address inquiry information is transmitted to the loop node, so that the loop node sends the The software address query information is returned to the FC port to be virtualized.

In addition, the present invention also discloses a fibre-channel FC port virtualization device, the device is applied in an arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected with other FC ports, wherein, The FC port to be virtualized is a loop node in an arbitrated loop, and the FC port connected to it includes a loop leader, and the first aspect of the device includes:

An obtaining module, configured to obtain address information of a virtual port transmitted by a host connected to the FC port to be virtualized;

The address information loading module is configured to receive the address query information transmitted by the ring leader, and load the address information of the virtual port into the address query information when the address query information meets the loading condition, so that the host connected to the FC port to be virtualized allocates port resources according to the address information in the loaded address query information, and establishes a virtual port.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the address information loading module includes:

The switch address information loading unit is configured to receive the switch allocation address inquiry information transmitted by the ring leader, and when the address information of the virtual port contains the address information allocated for the switch, when the switch allocation address query information Load the address information assigned to the switch in the query information, and transmit the loaded switch address query information to the ring leader, so that the ring leader can assign the address according to the received switch. Inquiry information to generate previous address inquiry information; when the address information of the virtual port does not contain the address information assigned to the switch, transmit the received inquiry information on the assigned address of the switch to the ring leader , so that the ring leader generates previous address query information according to the received switch assignment address query information;

The previous address information loading unit is configured to receive the previous address query information transmitted by the ring leader, and when the address information of the virtual port contains the address information allocated for the virtual port once used, the The address information assigned to the previously used virtual port is loaded in the address inquiry information, and the loaded former address inquiry information is transmitted to the ring leader, so that the ring leader can The preceding address query information generates static hardware address query information; when the address information of the virtual port does not contain the address information allocated for the virtual port once used, the received previous address query information transmit to the loop leader, so that the loop leader generates static hardware address query information according to the received previous address query information;

A static hardware address information loading unit, configured to receive the static hardware address query information transmitted by the ring leader, and when the address information of the virtual port contains address information allocated for static hardware, the static hardware The address information allocated for the static hardware is loaded into the address inquiry information, and the loaded static hardware address inquiry information is transmitted to the ring leader, so that the ring leader can Hardware address query information, generating software address query information; when the address information of the virtual port does not contain address information allocated for static hardware, the received static hardware address query information is transmitted to the The loop leader, so that the loop leader generates software address query information according to the received static hardware address query information;

A software address information recording unit, configured to receive the software address inquiry information transmitted by the ring leader, and when the address information of the virtual port includes address information assigned by software, the software address inquiry information Load the address information allocated by the software; when the address information of the virtual port does not contain the address information allocated by the software, the software address inquiry information is no longer loaded.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the device further includes:

An address report information receiving module, configured to receive the address report information transmitted by the ring leader;

The address report information loading module is used to load the address information of each virtual port in the address report information, and transmit the address report information loaded with the address information to the loop group leader, so that the loop can The group leader generates address notification information according to the received address report information, and the address notification information includes the address information of each virtual port obtained according to the address report information;

The address notification information receiving module is configured to receive and store the address notification information transmitted by the ring leader.

In addition, the present invention also discloses a fibre-channel FC port virtualization device, the device is applied in an arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected with other FC ports, wherein, The FC port to be virtualized is the ring leader in the arbitrated loop, and the FC port connected to it is a loop node. In the first aspect, the device includes:

An address information obtaining module, configured to obtain address information of a virtual port transmitted by a host connected to the FC port to be virtualized;

An address query information generating module, configured to generate address query information, and load address information of the virtual port into the address query information when the address query information satisfies the loading condition, so as to be compatible with the virtual port to be virtualized The host connected to the normalized FC port allocates port resources according to the address information, and establishes a virtual port.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the address inquiry information generation module includes:

A switch allocation address query information generating unit, configured to generate switch allocation address query information, when the address information of the virtual port contains address information allocated for the switch, load the switch allocation address query information as The address information allocated for the switch, and the loaded switch allocation address query information is transmitted to the ring node, so that the loop node returns the loaded switch allocation address query information to the The FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the switch, the switch allocation address inquiry information is transmitted to the ring node, so that the ring node will The switch assigns address inquiry information and returns to the FC port to be virtualized;

A previous address query information generating unit, configured to generate previous address query information according to the received address query information assigned by the switch, and the address information of the virtual port includes the address information assigned to the virtual port once used , load the address information assigned to the virtual port once used in the former address inquiry information, and transmit the loaded former address inquiry information to the ring node, so that the ring node will transfer the The pre-loaded address query information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the virtual port once used, the received pre-address transmitting the query information to the loop node, so that the loop node returns the previous address query information to the FC port to be virtualized;

A static hardware address query information generating unit, configured to generate static hardware address query information according to the received previous address query information, when the address information of the virtual port includes address information allocated for static hardware , loading the address information allocated for static hardware into the static hardware address query information, and transmitting the loaded static hardware address query information to the loop node, so that the loop node can transfer the The loaded static hardware address query information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the static hardware, the received static hardware address query The query information is transmitted to the loop node, so that the loop node returns the static hardware address query information to the FC port to be virtualized;

A software address query information generating unit, configured to generate software address query information according to the received static hardware address query information, and when the address information of the virtual port includes address information allocated by software, the Load the address information assigned by the software into the software address query information, and transmit the loaded software address query information to the loop node, so that the loop node can query the loaded software address Inquiry information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information assigned by the software, the received software address inquiry information is transmitted to the loop node , so that the loop node returns the software address query information to the FC port to be virtualized.

In addition, the present invention also discloses a fiber channel FC port virtualization device, which is characterized in that the device is applied in an arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected to other FC ports. connection, wherein the FC port to be virtualized is a loop node in an arbitrated loop, and the FC port connected to it includes a loop leader, and in the first aspect of the device, the device includes at least one processor and memory coupled to said at least one processor, wherein

The processor is configured to acquire the address information of the virtual port transmitted by the host computer connected to the FC port to be virtualized, and receive the address query information transmitted by the ring leader, and perform the address query When the query information satisfies the loading condition, load the address information of the virtual port in the address query information, so that the host connected to the FC port to be virtualized is based on the loaded address query information Allocate port resources according to the address information and establish a virtual port;

The memory is used to store information including running programs.

In addition, the present invention also discloses a fibre-channel FC port virtualization device, the device is applied in an arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected with other FC ports, wherein, The FC port to be virtualized is the loop leader in the arbitrated loop, and the FC port connected to it is the loop node. In the first aspect of the device, the device includes a processor and the processing tor connected memory, where,

The processor is configured to obtain address information of a virtual port transmitted by a host connected to the FC port to be virtualized, and generate address query information, and when the address query information satisfies a loading condition, the The address information of the virtual port is loaded into the address query information, so that the host connected to the FC port to be virtualized allocates port resources according to the address information and establishes a virtual port.

The memory is used to store information including running programs.

The FC port virtualization method disclosed in the present invention can apply for multiple address information for the FC port to be virtualized, and the address is usually called AL_PA (Arbitrated Loop Physical Address, arbitrated loop physical address) address, so that The host allocates port resources for each AL_PA address and establishes a virtual port. In this case, only the FC port is required to support the Loop mode, and the Loop mode is the basic mode supported by the FC port, and the common FC port supports the Loop mode. Therefore, when the method provided by the present invention is used to realize the virtualization of the FC port, It does not need to be equipped with FC ports that have high hardware requirements, but only ordinary ports can be used. In addition, through ordinary direct connection devices, such as optical fibers, cables, disk arrays, etc., connect the virtual FC port to the peer port Just stand up, no need to configure additional switches, saving costs, and suitable for large-scale promotion.

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 These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of an exemplary virtualization system of an FC port virtualization method disclosed in an embodiment of the present invention;

Fig. 2 is the working flowchart of a kind of FC port virtualization method disclosed by the embodiment of the present invention;

FIG. 3 is a schematic diagram of a frame format of address inquiry information disclosed in an embodiment of the present invention;

4 is a schematic diagram of the format of the AL_PL bitmap disclosed in the embodiment of the present invention;

FIG. 5 is a schematic diagram of a workflow for processing address query information in an FC port virtualization method disclosed in an embodiment of the present invention;

FIG. 6 is a schematic workflow diagram of processing switch allocation address query information in a FC port virtualization method disclosed in an embodiment of the present invention;

FIG. 7 is a schematic diagram of a workflow for rebuilding an AL_PA bitmap in an FC port virtualization method disclosed in an embodiment of the present invention;

8 is a schematic diagram of the formats of LIRP frames and LILP frames in an FC port virtualization method disclosed in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an FC port virtualization device disclosed in an 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The invention discloses a method for fictitious channel FC port virtualization to reduce the cost of FC port virtualization.

FIG. 1 depicts an exemplary virtualization system that can implement various embodiments of FC port virtualization. Among them, the FC port to be virtualized and other FC ports are connected through any link device, such as a common direct connection device. Arbitrated loop mode, or one end is set to Loop mode, and the other end is set to Adaptive mode. The adaptive mode supports Loop mode and other modes, so that the FC port and the peer port form an arbitrated loop. In the arbitrated ring, one FC port is the ring leader, and the other FC ports are loop nodes. The ring leader can generate information frames, and the loop nodes can receive the information frames and follow the The information frame is processed in a certain manner. The invention realizes the virtualization of the FC port through the characteristics of the Loop mode.

Embodiment 1 of the present invention discloses a method for FC port virtualization. The method is applied in an arbitrated loop mode. In the arbitrated loop mode, the FC port to be virtualized is connected to other FC ports, wherein the The FC port to be virtualized is a loop node in the arbitrated loop, and the FC port connected to it includes the ring leader, that is to say, when the FC port connected to the FC port to be virtualized is a plurality of , one of the FC ports is the ring leader, and the other FC ports are ring nodes. Referring to the workflow shown in Figure 2, the specific steps are as follows:

Step S1, the FC port to be virtualized obtains address information of a virtual port transmitted by a host connected to the FC port to be virtualized.

Before virtualizing the FC port, the staff will know the address information of the required virtual port in advance according to actual needs, and transmit the address information to the host where the FC port to be virtualized is located, and transmitted by the host to the FC port to be virtualized, so that the address information of the required virtual port is obtained by the FC port;

Step S2, the FC port to be virtualized receives the address inquiry information transmitted by the ring leader, and loads the virtual port in the address inquiry information when the address inquiry information satisfies the loading condition address information, so that the host connected to the FC port to be virtualized allocates port resources according to the address information in the loaded address query information, and establishes a virtual port.

Through the operations from step S1 to step S2, the address information of multiple virtual ports can be applied for for the FC port to be virtualized, and the address is usually called AL_PA (Arbitrated Loop Physical Address, arbitrated loop physical address) address, thereby Make the host allocate port resources for each AL_PA address and establish a virtual port. In this case, it is only required that the FC port supports the Loop mode, and the Loop mode is the basic mode supported by the FC port. Common FC ports support the Loop mode, and there is no need to configure an FC port with high hardware requirements. In addition, the Ordinary direct-connection devices, such as optical fibers, cables, disk arrays, etc., just connect the FC port to be virtualized with the peer port. No additional switches are required, which saves costs and is suitable for large-scale promotion.

In addition, the address query information includes: LIFA (Loop initial fabric AL_PA, address assigned by the switch) frame, LIPA (Loop initial past AL_PA, using the original address) frame, LIHA (Loop initial hard AL_PA, using a static hardware address) frame and LISA (Loop initial soft AL_PA, software assigned address) frame.

Wherein, the format of the LIFA frame, LIPA frame, LIHA frame and LISA frame is as shown in Figure 3, and the above frame information includes an AL_PA bitmap, and the AL_PA bitmap is as shown in Figure 4, in the arbitrated ring , each port can have up to 127 assignable addresses, and the AL_PA bitmap has 128 bits. Before virtualization, the ring leader initializes the AL_PA bitmap. In the AL_PA bitmap after initialization, Bit Word, that is, the position corresponding to the bit is 0. After the AL_PA address is allocated to the FC port to be virtualized, the bit word corresponding to the AL_PA address in the AL_PA bitmap is marked as 1, indicating that the AL_PA address has been occupied.

Wherein, referring to the schematic workflow diagram shown in FIG. 5, when the address query information meets the loading condition, the FC port to be virtualized loads the address information of the virtual port in the address query information, and loads the loaded The method for returning the address query information to the ring leader includes:

Step S11, the FC port to be virtualized receives the switch assignment address query information LIFA frame transmitted by the ring leader, and when the address information of the virtual port contains the address information assigned to the switch, in the Load the address information assigned to the switch in the switch allocation address query information LIFA frame, and transmit the loaded switch allocation address query information LIFA frame to the ring group leader, so that the ring group leader according to the received The received switch assigns an address query information LIFA frame to generate a previous address query information LIPA frame; when the address information of the virtual port does not include the address information assigned to the switch, the received switch is assigned The address query information LIFA frame is transmitted to the ring leader, so that the loop leader generates the previous address query information LIPA frame according to the received address query information assigned by the switch;

In the LIFA frame, the data word "11 02 00 00" is loaded to identify the LIFA frame. When the ring leader receives the LIFA frame, the "11 02 00 00" The data word is modified to "11 03 00 00", then the LIFA frame is converted into a LIPA frame;

Among them, there are many methods for identifying LIFA frames and LIPA frames that those of ordinary skill in the art can think of, as long as the identification of LIFA and LIPA frames can be realized, they will not be listed one by one here;

Step S12: Receive the previous address query information LIPA frame transmitted by the loop leader, and when the address information of the virtual port contains the address information allocated for the virtual port once used, the previous address query The information LIPA frame is loaded with the address information allocated for the once-used virtual port, and the pre-address query information LIPA frame after loading is transmitted to the ring leader, so that the ring leader The former address inquiry information LIPA frame generates a static hardware address inquiry information LIHA frame; when the address information of the virtual port does not include the address information allocated for the virtual port once used, the received The former address inquiry information LIPA frame is transmitted to the loop leader, so that the loop leader generates a static hardware address inquiry information LIHA frame according to the received former address inquiry information LIPA frame;

When the loop leader receives the LIPA frame, modify the data word of "11 03 00 00" to "11 0400 00", then convert the LIPA frame into a LIHA frame;

Among them, there are many methods for identifying LIHA frames that those of ordinary skill in the art can think of, as long as the identification of LIHA can be realized, they will not be listed one by one here;

Step S13: Receive the static hardware address inquiry information LIHA frame transmitted by the loop leader, and when the address information of the virtual port contains address information allocated for static hardware, the static hardware address inquiry information Load the address information allocated for the static hardware in the LIHA frame, and transmit the loaded static hardware address inquiry information LIHA frame to the ring leader, so that the ring leader can Hardware address inquiry information LIHA frame, generating software address inquiry information LISA frame; when the address information of the virtual port does not include address information allocated for static hardware, the received static hardware address inquiry information The LIHA frame is transmitted to the loop leader, so that the loop leader generates a software address query information LISA frame according to the received static hardware address query information LIHA frame;

When the loop group leader receives the LIHA frame, modify the data word of "11 04 00 00" to "11 0500 00", then convert the LIPA frame into a LISA frame;

Among them, there are many methods for identifying LISA frames that those of ordinary skill in the art can think of, as long as the identification of LISA can be realized, they will not be listed one by one here;

Step S14, receiving the software address inquiry information LISA frame transmitted by the ring leader, when the address information of the virtual port contains address information assigned by software, in the software address inquiry information LISA frame Load the address information assigned by the software, and transmit the loaded software address inquiry information LISA frame to the ring leader; when the address information of the virtual port does not include the address information assigned by the software, the The received LISA frame of the software address inquiry information is transmitted to the ring leader.

In addition, in step S14, after the address information assigned by the software is loaded in the software address inquiry information, or after it is determined that the address information does not need to be loaded, the software address inquiry information may also be transmitted to Ring leader.

Wherein, in step S11, the manner of receiving the switch assignment address inquiry information, and processing the exchange assignment address inquiry information according to different conditions, see the workflow diagram shown in FIG. 6 , including:

Step S111, receiving the switch assignment address inquiry information LIFA frame transmitted by the ring leader;

Step S112, according to the acquired address information, determine whether it is necessary to assign address information to the switch, if so, perform the operation of step S113, if not, perform the operation of step S115; in actual application situations, sometimes it is not necessary to set the switch for the switch Virtual ports, so a judgment process is required;

Step S113: Load the address information of the switch into the switch allocation address inquiry information LIFA according to the address information allocated to the switch included in the acquired address information; specifically, in the AL_PA bitmap, The AL_PA address assigned to the switch is set to 1, indicating that the address is already occupied;

Step S114, transmitting the switch assignment address inquiry information loaded with the address information of the switch to the ring leader;

Step S115 , returning the received query information of the address assigned by the switch to the ring leader.

In addition, when the ring leader receives the LIFA frame, it will generate a LIPA frame. If this operation of virtualizing the FC port is the first operation, there will be no allocation of the previously used virtual port. or, this virtualization does not need to use the address of the previously used virtual port, in this case, the address information does not include the AL_PA address allocated for the previously used virtual port, and the FC to be virtualized The port will directly return the LIPA frame to the ring leader port after judging. When loading is required, the loop node will load the required AL_PA address allocated for the original virtual address in the AL_PA bitmap of the LIPA frame.

When the loop group leader receives the LIPA frame, it will generate a LIHA frame. For some static hardware, such as jumpers, backplane lines, etc., a fixed virtual address is usually assigned to simplify configuration and facilitate subsequent Analysis and processing. In this case, a fixed virtual address will be assigned to the hardware. In this case, after the FC port to be virtualized is judged, the static hardware address inquiry information LIHA frame is loaded with the static The address information of the hardware, that is to say, setting 1 in the corresponding AL_PA address indicates that the address is already occupied, and if it does not need to be loaded, the LIHA frame is directly returned to the ring leader node.

After the loop group leader receives the LIHA frame, a LISA frame will be generated. In the above steps, through the loading of LIFA, LIPA, and LIHA frames, certain address information has been loaded in the AL_PA bitmap, for The switch and hardware allocate the AL_PA address, and load the address information of the previous virtual port in the AL_PA bitmap. In this case, if the loaded address information cannot meet the requirements for the virtual port, the address information needs to be allocated by software , for example, 100 virtual ports are required, and in the above steps, only 20 addresses are assigned by the switch, used virtual ports and static hardware, in this case, the address assigned by the software needs to be loaded in the LISA frame information. When the software loads the address information allocated by the software in the LISA frame, the allocated AL_PA address is not fixed, generally starting from the first free AL_PA address found in the AL_PA bitmap, and proceeding in order of priority from high to low Load, and set 1 to the corresponding address in the AL_PA bitmap in turn.

In addition, in the arbitrated loop mode, the number of ports on the entire arbitrated loop cannot exceed 126. If there are other devices, for example, there are already 5 ports in the arbitrated loop, then the host can only allocate ports for 121 AL_PA addresses resources, create a virtual port. When the number of required virtual ports is large, for example, 200 virtual ports are required, the addresses in the AL_PA bitmap cannot meet the requirements, and the required excessive virtual ports cannot be established. Generally, in this case, you can Say the excess virtual port is a non-participating mode virtual port.

After step S14, when the loop leader receives the LISA frame, it means that the AL_PA address allocation process is all over, and all ports are either allocated to a unique AL_PA address, or enter a non-participating mode. Since the AL_PA address allocation process is arbitrary, in order to facilitate configuration management or problem analysis, an AL_PA bitmap is reconstructed. In order to realize rebuilding the loop bitmap, after the loop node loads the address information in the address inquiry information, referring to FIG. 7, the following steps are also included:

Step S15, the FC port to be virtualized receives the address report information LIRP (Loop initialization report position, address reporting process) frame transmitted by the loop leader; after receiving the software returned by the FC port to be virtualized After the address query information, the ring leader will generate address report information;

Step S16, loading the address information of each virtual port in the address report information LIRP frame, and transmitting the address report information LIRP frame loaded with the address information to the ring leader, so that the loop leader can The received address report information LIRP frame generates a LILP (Loop initialization loop position, notification position process) frame, and the address report information LILP frame includes the address information of each virtual port obtained according to the address report information ; Wherein the format of the LIRP frame and the LILP frame is as shown in Figure 8, the loop node will be in the AL PA bitmap in the LIRP frame after receiving the LIRP frame produced by the loop group leader , set the AL_PA address corresponding to each virtual port to 1 in turn, and after all the AL_PA addresses corresponding to all virtual ports are set to 1, the ring node will transmit the LIRP frame to the ring leader, and the ring leader receives the LIRP frame, change the frame identifier to (11 07 00 00), form a LILP frame and forward it to the ring node. The virtual port of the non-participating mode does not have an AL_PA address corresponding to it, so in the LIRP frame, the AL_PA address information corresponding to the virtual port of the non-participating mode does not need to be loaded;

Step S17 , receiving the address announcement information LILP frame transmitted by the ring leader and storing it in each virtual port, so as to obtain a complete AL_PA bitmap for later use.

Through the operation from step S15 to step S17, the loop node will obtain the reconstructed AL_PA bitmap, which is loaded with the AL_PA address corresponding to each virtual port, and store the AL_PA bitmap into each virtual port, so that the problem can be solved later used during analysis.

In some cases, it is not necessary to rebuild the AL_PA bitmap, or the device does not support rebuilding the AL_PA bitmap, the loop node will change the second byte of the frame ID of the LISA frame to 00, that is, the original frame Change the identification 11 05 01 00 to 11 05 00 00, and then send it to the ring leader. When the ring leader receives the LISA frame, he will check this byte to decide whether to execute the process of building the bitmap. When he sees the LISA frame If the second byte of the flag has been modified, the operation of rebuilding the AL_PA bitmap will not be performed.

In addition, each time the ring node receives the information transmitted by the ring leader, such as LIFA, LIPA, LIHA, LISA, and LILIP frames, and loads the corresponding AL_PA address information in it, the ring node that performs the loading operation can Calculate CRC (Cyclic Redundancy Check, cyclic redundancy check code) according to the loaded address to avoid errors.

Through the FC port virtualization method disclosed in this embodiment, the FC port to be virtualized establishes an arbitrated loop with other ports in the Loop mode of the arbitrated loop, and receives the address query information transmitted by the loop leader. The query information loads the required AL_PA address information of the virtual port, so that the host can allocate port resources for each AL_PA address and establish a virtual port. In this case, only the FC ports are required to support the Loop mode, and all common FC ports support the Loop mode. There is no need to configure FC ports with high hardware requirements, and only ordinary ports can be used. Connecting devices, such as optical fibers, cables, and disk arrays, just connect the FC port to be virtualized with the peer port. No additional switches are required, which saves costs and is suitable for large-scale promotion.

Correspondingly, the present invention also discloses a method for FC port virtualization. The method is applied in an arbitrated ring Loop mode. In the Loop mode, the FC port to be virtualized is connected to other FC ports, wherein the The FC port to be virtualized is the ring leader in the arbitrated ring, and the FC port connected to it is a ring node, and the method includes:

Step S3, the FC port to be virtualized obtains the address information of the virtual port transmitted by the host connected to the FC port to be virtualized;

Step S4, the FC port to be virtualized generates address query information, and when the address query information satisfies the loading condition, loads the address information of the virtual port into the address query information so as to be compatible with the The host connected to the FC port to be virtualized allocates port resources according to the address information, and establishes a virtual port.

Through the operations of steps S3 and S4, the ring leader, that is, the FC port to be virtualized, will load the required AL_PA address in the address inquiry information when generating the address inquiry information, so that the host can The AL_PA address loaded in the AL_PA bitmap allocates port resources and establishes virtual ports.

Wherein, in the step S4, when the address inquiry information satisfies the loading condition, the method for loading the address information in the address inquiry information includes:

Step S41, the FC port to be virtualized generates a switch allocation address query information LIFA frame, and when the address information of the virtual port contains address information allocated for the switch, the switch allocation address query information LIFA The frame loads the address information allocated for the switch, and transmits the loaded switch allocation address inquiry information LIFA frame to the loop node, so that the loop node will query the loaded switch allocation address The information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information assigned to the switch, the switch is assigned an address inquiry information LIFA frame and is transmitted to the loop node, so that The loop node returns the switch allocation address inquiry information to the FC port to be virtualized; the loop group leader, that is, the FC port to be virtualized, is loaded with " 11 02 00 00", used to identify the LIFA frame, or other identification methods can also be used;

Step S42: Generate the pre-address query information LIPA frame according to the received LIFA frame of the switch assignment address query information. When the address information of the virtual port contains the address information allocated for the virtual port once used, The address information allocated for the once-used virtual port is loaded in the LIPA frame of the previous address query information, and the loaded LIPA frame of the previous address query information is transmitted to the loop node, so that the loop node Return the pre-loaded address query information to the FC port to be virtualized; when the address information of the virtual port does not contain the address information allocated for the virtual port once used, the received The LIPA frame of the previous address query information is transmitted to the loop node, so that the loop node returns the previous address query information to the FC port to be virtualized; the loop group leader, namely For the FC port to be virtualized, modify the data word "11 02 00 00" loaded in the LIFA frame to "11 03 00 00" to identify the LIPA frame, or other identifications can also be used Way;

Step S43: Generate a static hardware address query information LIHA frame according to the received previous address query information LIPA frame, and when the address information of the virtual port contains address information allocated for static hardware, the The static hardware address inquiry information LIHA frame loads the address information allocated for the static hardware, and transmits the loaded static hardware address inquiry information LIHA frame to the loop node, so that the loop node can transfer the The loaded static hardware address query information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the static hardware, the received static hardware The address query information LIHA frame is transmitted to the loop node, so that the loop node returns the static hardware address query information to the FC port to be virtualized; The FC port of the described LIPA frame, the data word of loading " 11 03 00 00 " is changed to " 11 04 00 00 ", in order to identify the described LIHA frame, or, also can adopt other identification modes;

Step S44: Generate a software address inquiry information LISA frame according to the received static hardware address inquiry information LIHA frame, and when the address information of the virtual port includes address information assigned by software, the software address The address information assigned by the software is loaded in the inquiry information LISA frame, and the loaded software address inquiry information LISA frame is transmitted to the loop node, so that the loop node can send the loaded software address Inquiry information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information assigned by the software, the received software address inquiry information LISA frame is transmitted to the A loop node, so that the loop node returns the software address query information to the FC port to be virtualized. The loop group leader, that is, the FC port to be virtualized, modifies the data word of "11 04 00 00" loaded in the LIHA frame to "11 05 00 00" to identify the LISA frame, Alternatively, other identification methods may also be used.

Wherein, in step S41, the method for generating a LIFA frame of switch assignment address inquiry information and processing the LIFA frame according to different conditions includes:

Step S411, generating a LIFA frame of switch assignment address inquiry information;

Step S412. According to the obtained address information, it is judged whether the address information allocated for the switch is included, if yes, perform the operation of step S413, if not, perform the operation of step S415;

Step S413, according to the address information allocated to the switch included in the acquired address information, loading the address information allocated to the switch in the LIFA frame of the switch allocation address inquiry information;

Step S414, transmitting the switch-allocated address query information LIFA frame loaded with the address information allocated for the switch to the loop node;

Step S415, transmitting the generated LIFA frame of switch assignment address inquiry information to the ring node.

Similarly, when the loop group leader loads the address information of the LIPA, LIHA, and LISA frames, he also follows a similar method, and the FC port to be virtualized judges whether the acquired address information contains information that needs to be loaded , and process it according to the judgment result.

After step S4, when the ring leader receives the LISA frame returned by the ring node, it means that the AL_PA address allocation process is all over, and all ports are either allocated to a unique AL_PA address, or enter a non-participating mode. Since the AL_PA address allocation process is arbitrary, in order to facilitate configuration management or problem analysis, a loop bitmap is reconstructed. In order to realize rebuilding the ring bitmap, after the ring leader loads the address information in the address inquiry information, the following steps are also included:

The FC port to be virtualized generates an address report information LIRP frame;

The address information of each virtual port is loaded in the address report information to form and store an address notification information LILP frame, and the LILP frame includes the address information of each virtual port obtained according to the address report information LIRP frame

Correspondingly, the present invention also discloses a fibre-channel FC port virtualization device, which is applied in an arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected to other FC ports, wherein , the FC port to be virtualized is a loop node in an arbitrated loop, and the FC port connected to it includes a loop group leader. Referring to the structural diagram shown in FIG. 9 , the device includes: an acquisition module 11, an address Information loading module 12, wherein

The acquiring module 11 is configured to acquire the address information of the virtual port transmitted by the host connected to the FC port to be virtualized;

The address information loading module 12 is configured to receive address query information transmitted by the ring leader, and load the address query information of the virtual port into the address query information when the address query information meets the loading condition. address information, so that the host connected to the FC port to be virtualized allocates port resources according to the address information in the loaded address query information, and establishes a virtual port.

Wherein the address information loading module 12 includes: a switch address information loading unit 121, a previous address information loading unit 122, a static hardware address information loading unit 123 and a software address information loading unit 124, wherein

The switch address information loading unit 121 is configured to receive the switch allocation address query information transmitted by the ring leader, and when the address information of the virtual port contains address information allocated for the switch, the switch will The address information assigned to the switch is loaded in the address allocation query information, and the loaded switch address allocation query information is transmitted to the ring leader, so that the ring leader Assigning address inquiry information, generating pre-address inquiry information; when the address information of the virtual port does not contain the address information allocated for the switch, transmitting the received address inquiry information of the switch to the ring a road group leader, so that the ring group leader generates previous address query information according to the received address query information assigned by the switch;

The previous address information loading unit 122 is configured to receive the previous address query information transmitted by the ring leader, and when the address information of the virtual port contains the address information allocated for the virtual port once used, Load the address information allocated for the virtual port once used in the former address inquiry information, and transmit the loaded former address inquiry information to the ring group leader, so that the ring group leader receives The previously received address query information is generated to generate static hardware address query information; when the address information of the virtual port does not contain the address information allocated for the previously used virtual port, the received previous address The query information is transmitted to the ring leader, so that the loop leader generates static hardware address query information according to the received previous address query information;

The static hardware address information loading unit 123 is configured to receive the static hardware address query information transmitted by the ring leader, and when the address information of the virtual port contains address information allocated for static hardware, the Load the address information allocated for the static hardware into the static hardware address inquiry information, and transmit the loaded static hardware address inquiry information to the loop leader, so that the loop leader can The static hardware address query information generates software address query information; when the address information of the virtual port does not include address information allocated for static hardware, transmit the received static hardware address query information to the loop leader, so that the loop leader generates software address query information according to the received static hardware address query information;

The software address information recording unit 124 is configured to receive the software address inquiry information transmitted by the loop leader, and when the address information of the virtual port includes address information assigned by software, the software address The address information allocated by the software is loaded into the inquiry information; when the address information of the virtual port does not contain the address information allocated by the software, the software address inquiry information is no longer loaded.

In addition, the device also includes: an address report information receiving module, an address report information loading module, and an address notification information receiving module, wherein

The address report information receiving module is configured to receive the address report information transmitted by the ring leader;

The address report information loading module is configured to load the address information of each virtual port in the address report information, and transmit the address report information loaded with the address information to the ring leader, so that the The loop group leader generates address notification information according to the received address report information, and the address notification information includes the address information of each virtual port obtained according to the address report information;

The address notification information receiving module is configured to receive and store the address notification information transmitted by the ring leader.

In addition, the present invention also discloses a fibre-channel FC port virtualization device, the device is applied in an arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected with other FC ports, wherein, The FC port to be virtualized is the ring leader in the arbitrated loop, and the FC port connected to it is the ring leader, and the device includes: an address information acquisition module and an address query information generation module, wherein

The address information obtaining module is configured to obtain the address information of the virtual port transmitted by the host connected to the FC port to be virtualized;

The address query information generating module is configured to generate address query information, and when the address query information meets the loading condition, load the address information of the virtual port into the address query information so as to be compatible with the The host connected to the FC port to be virtualized allocates port resources according to the address information, and establishes a virtual port.

Wherein, the address query information generation module includes:

A switch allocation address query information generating unit, configured to generate switch allocation address query information, when the address information of the virtual port contains address information allocated for the switch, load the switch allocation address query information as The address information allocated for the switch, and the loaded switch allocation address query information is transmitted to the ring node, so that the loop node returns the loaded switch allocation address query information to the The FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the switch, the switch allocation address inquiry information is transmitted to the ring node, so that the ring node will The switch assigns address inquiry information and returns to the FC port to be virtualized;

A previous address query information generating unit, configured to generate previous address query information according to the received address query information assigned by the switch, and the address information of the virtual port includes the address information assigned to the virtual port once used , load the address information assigned to the virtual port once used in the former address inquiry information, and transmit the loaded former address inquiry information to the ring node, so that the ring node will transfer the The pre-loaded address query information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the virtual port once used, the received pre-address transmitting the query information to the loop node, so that the loop node returns the previous address query information to the FC port to be virtualized;

A static hardware address query information generating unit, configured to generate static hardware address query information according to the received previous address query information, when the address information of the virtual port includes address information allocated for static hardware , loading the address information allocated for static hardware into the static hardware address query information, and transmitting the loaded static hardware address query information to the loop node, so that the loop node can transfer the The loaded static hardware address query information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the static hardware, the received static hardware address query The query information is transmitted to the loop node, so that the loop node returns the static hardware address query information to the FC port to be virtualized;

A software address query information generating unit, configured to generate software address query information according to the received static hardware address query information, and when the address information of the virtual port includes address information allocated by software, the Load the address information assigned by the software into the software address query information, and transmit the loaded software address query information to the loop node, so that the loop node can query the loaded software address Inquiry information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information assigned by the software, the received software address inquiry information is transmitted to the loop node , so that the loop node returns the software address query information to the FC port to be virtualized.

In the FC port virtualization device disclosed in the present invention, the FC port to be virtualized and the connected FC port are in Loop mode, and the FC port to be virtualized is connected to the FC port through the formed arbitration loop. The information interaction between the FC ports can enable the FC port to be virtualized to load the address information of the required virtual port in the address query information after receiving the address query information generated by the ring leader , so that the host on the side of the FC port to be virtualized can allocate port resources according to the address information and establish a virtual port. In this process, only the FC port needs to support the Loop mode, and the basic function of the FC port is to support the Loop mode. It does not need to be configured at a higher level, so virtualization can be realized without a higher configuration of the FC port. Reduced costs.

In addition, in the present invention, the connection between the FC port to be virtualized and the connected FC port can be realized only by ordinary direct-connection equipment, and no additional switches are required, which reduces costs and simplifies configuration , which is conducive to the realization of large-scale promotion.

Correspondingly, the present invention also discloses a fibre-channel FC port virtualization device, which is applied in an arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected to other FC ports, wherein , the FC port to be virtualized is a loop node in an arbitrated loop, the FC port connected to it includes a loop leader, and the device includes at least one processor and a node connected to the at least one processor storage, where

The processor is configured to acquire the address information of the virtual port transmitted by the host computer connected to the FC port to be virtualized, and receive the address query information transmitted by the ring leader, and perform the address query When the query information satisfies the loading condition, load the address information of the virtual port in the address query information, so that the host connected to the FC port to be virtualized is based on the loaded address query information Allocate port resources according to the address information and establish a virtual port;

The memory is used to store information including running programs.

In addition, the present invention also discloses another fibre-channel FC port virtualization device, which is applied in the arbitrated ring mode, and in the arbitrated ring mode, the FC port to be virtualized is connected with other FC ports, wherein , the FC port to be virtualized is the ring leader in the arbitrated loop, and the FC port connected to it is a loop node, and the device includes a processor and a memory connected to the processor, wherein,

The processor is configured to obtain address information of a virtual port transmitted by a host connected to the FC port to be virtualized, and generate address query information, and when the address query information satisfies a loading condition, the The address information of the virtual port is loaded in the address query information, so that the host connected to the FC port to be virtualized allocates port resources according to the address information and establishes a virtual port;

The memory is used to store information including running programs.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes. .

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. A Fiber Channel FC port virtualization method, characterized in that, the method is applied in an arbitrated loop mode, and in the arbitrated loop mode, the FC port to be virtualized is connected with other FC ports, wherein the The FC port to be virtualized is a loop node in an arbitrated loop, and the FC port connected to it includes a loop leader, and the method includes: Obtaining the address information of the virtual port transmitted by the host connected to the FC port to be virtualized; receiving address query information transmitted by the ring leader, and loading address information of the virtual port into the address query information when the address query information meets a loading condition. 2. The method according to claim 1, wherein the method for loading the address information of the virtual port in the address inquiry information when the address inquiry information satisfies the loading condition comprises: receiving the switch assignment address inquiry information transmitted by the ring group leader, and loading the address information for the switch into the switch assignment address inquiry information when the address information of the virtual port contains the address information assigned to the switch assigned address information, and transmit the loaded switch assignment address query information to the ring leader, so that the ring leader generates the previous address query according to the received switch assignment address query information information; when the address information of the virtual port does not include the address information allocated for the switch, the received switch address allocation query information is transmitted to the ring leader, so that the ring leader generating previous address query information according to the received switch assignment address query information; receiving the previous address query information transmitted by the ring leader, and loading the previous address query information into the previous address query information when the address information of the virtual port contains the address information allocated for the virtual port once used; address information assigned to the virtual port once used, and transmit the loaded pre-address inquiry information to the ring leader, so that the loop leader can generate Static hardware address query information; when the address information of the virtual port does not contain the address information allocated for the virtual port once used, the received previous address query information is transmitted to the ring leader , so that the ring leader generates static hardware address query information according to the received previous address query information; receiving the static hardware address query information transmitted by the ring leader, and loading the static hardware address query information into the static hardware address query information when the address information of the virtual port contains address information allocated for the static hardware The address information assigned by the static hardware, and the loaded static hardware address query information is transmitted to the ring leader, so that the loop leader generates a software address according to the received static hardware address query information Inquiry information; when the address information of the virtual port does not contain address information allocated for static hardware, the received static hardware address inquiry information is transmitted to the ring leader, so that the ring The road team leader generates software address inquiry information according to the received static hardware address inquiry information; receiving the software address query information transmitted by the ring leader, and loading the address information allocated by the software into the software address query information when the address information of the virtual port contains the address information allocated by the software; address information; when the address information of the virtual port does not include the address information allocated by the software, the software address query information is no longer loaded. 3. The method according to claim 1, characterized in that, after loading the address information of the virtual port in the address inquiry information, further comprising: receiving the address report information transmitted by the ring leader; The address information of each virtual port is loaded in the address report information, and the address report information loaded with the address information is transmitted to the ring leader, so that the ring leader can The address report information generates address notification information, and the address notification information includes the address information of each virtual port obtained according to the address report information; The address notification information transmitted by the ring leader is received and stored in each virtual port. 4. A Fiber Channel FC port virtualization method, characterized in that, the method is applied in an arbitrated loop mode, and in the arbitrated loop mode, the FC port to be virtualized is connected with other FC ports, wherein the The FC port to be virtualized is the ring leader in the arbitrated ring, and the FC port connected to it is a ring node, and the method includes: Obtaining the address information of the virtual port transmitted by the host connected to the FC port to be virtualized; Generate address query information, and load the address information of the virtual port into the address query information when the address query information meets a loading condition. 5. The method according to claim 4, wherein the method for loading the address information of the virtual port in the address inquiry information when the address inquiry information satisfies the loading condition comprises: Generate switch allocation address query information, when the address information of the virtual port contains the address information allocated for the switch, load the address information allocated for the switch in the switch allocation address query information, and The loaded switch assignment address inquiry information is transmitted to the ring node, so that the ring node returns the loaded switch assignment address inquiry information to the FC port to be virtualized; When the address information of the port does not include the address information allocated for the switch, the switch allocation address query information is transmitted to the ring node, so that the ring node returns the switch allocation address query information to the Describe the FC ports to be virtualized; Generate previous address query information according to the received address query information assigned by the switch, and when the address information of the virtual port contains the address information allocated for the virtual port once used, the previous address query information Load the address information allocated for the virtual port once used, and transmit the pre-loaded address query information to the loop node, so that the loop node returns the loaded pre-address query information to The FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the virtual port once used, transmit the received previous address inquiry information to the loop node , so that the loop node returns the previous address query information to the FC port to be virtualized; Generate static hardware address query information according to the received previous address query information, and when the address information of the virtual port includes address information allocated for static hardware, in the static hardware address query information loading the address information allocated for the static hardware, and transmitting the loaded static hardware address query information to the loop node, so that the loop node returns the loaded static hardware address query information to The FC port to be virtualized; when the address information of the virtual port does not include address information allocated for static hardware, the received static hardware address query information is transmitted to the ring node, so that The loop node returns the static hardware address query information to the FC port to be virtualized; Generate software address query information according to the received static hardware address query information, and load the software address query information into the software address query information when the address information of the virtual port includes address information assigned by software address information assigned by software, and transmit the loaded software address query information to the loop node, so that the loop node returns the loaded software address query information to the to-be-virtualized FC port; when the address information of the virtual port does not include the address information assigned by the software, the received software address inquiry information is transmitted to the loop node, so that the loop node sends the The software address query information is returned to the FC port to be virtualized. 6. A Fiber Channel FC port virtualization device, characterized in that the device is applied in an arbitrated loop mode, and in the arbitrated loop mode, the FC port to be virtualized is connected to other FC ports, wherein the The FC port to be virtualized is a loop node in an arbitrated loop, and the FC port connected to it includes a loop leader, and the device includes: An obtaining module, configured to obtain address information of a virtual port transmitted by a host connected to the FC port to be virtualized; The address information loading module is configured to receive the address query information transmitted by the ring leader, and load the address information of the virtual port into the address query information when the address query information meets a loading condition. 7. The device according to claim 6, wherein the address information loading module comprises: The switch address information loading unit is configured to receive the switch allocation address inquiry information transmitted by the ring leader, and when the address information of the virtual port contains the address information allocated for the switch, when the switch allocation address query information Load the address information assigned to the switch in the query information, and transmit the loaded switch address query information to the ring leader, so that the ring leader can assign the address according to the received switch. Inquiry information to generate previous address inquiry information; when the address information of the virtual port does not contain the address information assigned to the switch, transmit the received inquiry information on the assigned address of the switch to the ring leader , so that the ring leader generates previous address query information according to the received switch assignment address query information; The previous address information loading unit is configured to receive the previous address query information transmitted by the ring leader, and when the address information of the virtual port contains the address information allocated for the virtual port once used, the The address information assigned to the previously used virtual port is loaded in the address inquiry information, and the loaded former address inquiry information is transmitted to the ring leader, so that the ring leader can The preceding address query information generates static hardware address query information; when the address information of the virtual port does not contain the address information allocated for the virtual port once used, the received previous address query information transmit to the loop leader, so that the loop leader generates static hardware address query information according to the received previous address query information; A static hardware address information loading unit, configured to receive the static hardware address query information transmitted by the ring leader, and when the address information of the virtual port contains address information allocated for static hardware, the static hardware The address information allocated for the static hardware is loaded into the address inquiry information, and the loaded static hardware address inquiry information is transmitted to the ring leader, so that the ring leader can Hardware address query information, generating software address query information; when the address information of the virtual port does not contain address information allocated for static hardware, the received static hardware address query information is transmitted to the The loop leader, so that the loop leader generates software address query information according to the received static hardware address query information; A software address information recording unit, configured to receive the software address inquiry information transmitted by the ring leader, and when the address information of the virtual port includes address information assigned by software, the software address inquiry information Load the address information allocated by the software; when the address information of the virtual port does not contain the address information allocated by the software, the software address inquiry information is no longer loaded. 8. The device according to claim 6, further comprising: An address report information receiving module, configured to receive the address report information transmitted by the ring leader; The address report information loading module is used to load the address information of each virtual port in the address report information, and transmit the address report information loaded with the address information to the loop group leader, so that the loop can The group leader generates address notification information according to the received address report information, and the address notification information includes the address information of each virtual port obtained according to the address report information; The address notification information receiving module is configured to receive and store the address notification information transmitted by the ring leader. 9. A Fiber Channel FC port virtualization device, characterized in that the device is applied in an arbitrated loop mode, and in the arbitrated loop mode, the FC port to be virtualized is connected to other FC ports, wherein the The FC port to be virtualized is the ring leader in the arbitrated ring, and the FC port connected to it is a ring node, and the device includes: An address information obtaining module, configured to obtain address information of a virtual port transmitted by a host connected to the FC port to be virtualized; The address query information generating module is configured to generate address query information, and load the address information of the virtual port into the address query information when the address query information satisfies a loading condition. 10. The device according to claim 9, wherein the address inquiry information generation module includes: A switch allocation address query information generating unit, configured to generate switch allocation address query information, when the address information of the virtual port contains address information allocated for the switch, load the switch allocation address query information as The address information allocated for the switch, and the loaded switch allocation address query information is transmitted to the ring node, so that the loop node returns the loaded switch allocation address query information to the The FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the switch, the switch allocation address inquiry information is transmitted to the ring node, so that the ring node will The switch assigns address inquiry information and returns to the FC port to be virtualized; A previous address query information generating unit, configured to generate previous address query information according to the received address query information assigned by the switch, and the address information of the virtual port includes the address information assigned to the virtual port once used , load the address information assigned to the virtual port once used in the former address inquiry information, and transmit the loaded former address inquiry information to the ring node, so that the ring node will transfer the The pre-loaded address query information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the virtual port once used, the received pre-address transmitting the query information to the loop node, so that the loop node returns the previous address query information to the FC port to be virtualized; A static hardware address query information generating unit, configured to generate static hardware address query information according to the received previous address query information, when the address information of the virtual port includes address information allocated for static hardware , loading the address information allocated for static hardware into the static hardware address query information, and transmitting the loaded static hardware address query information to the loop node, so that the loop node can transfer the The loaded static hardware address query information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information allocated for the static hardware, the received static hardware address query The query information is transmitted to the loop node, so that the loop node returns the static hardware address query information to the FC port to be virtualized; A software address query information generating unit, configured to generate software address query information according to the received static hardware address query information, and when the address information of the virtual port includes address information allocated by software, the Load the address information assigned by the software into the software address query information, and transmit the loaded software address query information to the loop node, so that the loop node can query the loaded software address Inquiry information is returned to the FC port to be virtualized; when the address information of the virtual port does not include the address information assigned by the software, the received software address inquiry information is transmitted to the loop node , so that the loop node returns the software address query information to the FC port to be virtualized. 11. A Fiber Channel FC port virtualization device, characterized in that the device is applied in an arbitrated loop mode, and in the arbitrated loop mode, the FC port to be virtualized is connected to other FC ports, wherein the The FC port to be virtualized is a loop node in an arbitrated loop, and the FC port connected to it includes a loop leader, and the device includes at least one processor and a memory connected to the at least one processor, in The processor is configured to acquire the address information of the virtual port transmitted by the host computer connected to the FC port to be virtualized, and receive the address query information transmitted by the ring leader, and perform the address query When the query information satisfies the loading condition, load the address information of the virtual port in the address query information; The memory is used to store information including running programs. 12. A Fiber Channel FC port virtualization device, characterized in that the device is applied in an arbitrated loop mode, and in the arbitrated loop mode, the FC port to be virtualized is connected to other FC ports, wherein the The FC port to be virtualized is the ring leader in the arbitrated ring, and the FC port connected to it is a ring node, and the device includes a processor and a memory connected to the processor, wherein, The processor is configured to obtain address information of a virtual port transmitted by a host connected to the FC port to be virtualized, and generate address query information, and when the address query information satisfies a loading condition, the Loading the address information of the virtual port into the address inquiry information; The memory is used to store information including running programs.