WO2017079951A1

WO2017079951A1 - Computer device and registration method for io device of the computer device

Info

Publication number: WO2017079951A1
Application number: PCT/CN2015/094497
Authority: WO
Inventors: 成永光
Original assignee: 华为技术有限公司
Priority date: 2015-11-12
Filing date: 2015-11-12
Publication date: 2017-05-18
Also published as: CN107111644A

Abstract

The embodiments of the present invention relate to the technology of IO device registration when a computer device is started, and provided are a computer device and a registration method for an IO device of the computer device. The computer device comprises: a processor, an IO device, a memory and a BIOS memory, wherein the IO device, the memory and the BIOS memory are connected to the processor; the BIOS memory stores a system boot program and the name of the IO device; and the processor loads the name of the IO device to the memory in the process of executing the boot program, acquires the name of the IO device from the memory when driving the IO device, and registers the IO device according to the acquired name of the IO device. Thus, the name of each IO device can be fixed, so as to avoid the problem of the occurrence of an access error for an application server caused by a change in the IO device name or of low efficiency when servers are deployed in batches.

Description

IO device registration method for computer equipment and computer equipment

Technical field

The present invention relates to the field of computer technology, and in particular, to a technology for registering an input/output (IO) device when a computer device is started.

Background technique

The processor of a computer device, such as a server, is generally connected to each IO device through a bus interface, such as a Peripheral Component Interface Express (PCIE) interface, to implement control of the IO device by the processor. However, after the IO device is connected to the bus interface, the name of the IO device needs to be registered to the system by the driver, and then the processor can recognize the IO device and control the IO device by the registered name.

The specific registration method is as follows: after the computer device is powered on, the Basic Input Output System (BIOS) is started, the operating system is booted, the operating system loads the IO device driver, and the IO device driver uses the common name of the IO device "name%d" "Submitted to the operating system, "name" is the category of the IO device, generally the name of the bus interface to which the IO device is connected, "%d" indicates the number of the IO device to be assigned by the operating system, and the operating system detects the same The order of the class IO devices is assigned a number for the IO device.

However, in a computer device that includes multiple bus interfaces of the same type, since the IO device connected to the bus interface changes, such as accessing a new IO device, or unplugging the originally connected device, the original device may have been allocated. The name of the IO device changes. For example, the processor of the computing device in FIG. 1 provides two hard disk interfaces, that is, a first hard disk interface and a second hard disk interface. When the computer device is started, the IO device is generally connected. The position of the bus interface in the bus is sequentially registered with the IO device, where the position of the first hard disk interface in the bus is prior to the second hard disk interface. In one use, if the first hard disk is connected to the first hard disk and the first hard disk interface is not connected to the IO device, the operating system assigns the first hard disk the name disk1, but in the process of using the first hard disk. The second hard disk is connected to the interface, and the system first allocates the second hard disk connected to the first hard disk interface because the first hard disk interface is located in the bus before the second hard disk interface. Name disk1, the first hard disk connected to the second hard disk interface The name disk2 is assigned, and the name assigned to the first hard disk is disk1. In this way, the name of the IO device connected to the same bus interface is not fixed and will always change. In actual use, the upper layer application generally accesses the IO device by driving the name of the registered IO device, if the IO device The name is not fixed, but changes, application access errors will occur. For example, the upper-layer application accesses the first hard disk through the IO device name disk1, but the first hard disk is restarted after the computer accesses the new IO device. The name becomes disk2, and the name of the second hard disk becomes disk1. Thus, the upper layer application accesses the second hard disk through the IO device name disk1 instead of the first hard disk, and an access error occurs.

Summary of the invention

Embodiments of the present invention provide a registration technology of an IO device when a computer device is started. When registering an IO device, a fixed name is registered for each IO device.

A first aspect of the embodiments of the present invention provides a computer device, where the computer device includes a processor, an IO device, a memory, and a BIOS memory, where the IO device, the memory, and the BIOS memory are connected to the processor. Storing a system boot program and a name of the IO device in the BIOS memory, in the process of executing the boot program, the processor loads a name of the IO device into the memory, and drives the IO device The processor acquires a name of the IO device from the memory, and registers the IO device according to the acquired name of the IO device. In this way, since the name of the IO device is stored in the BIOS memory in advance, when registering, the IO device name is directly registered using the name of the preset stored IO device, so that the name of the IO device can be fixed without It changes due to the influence of other factors.

In an embodiment of the first aspect, the processor configures a name of the IO device according to a user input during execution of the system booting procedure, and stores the name of the IO device in the BIOS memory. In this way, the user can configure the name of the IO device as needed.

In still another embodiment of the first aspect, the processor receives a user input by providing a configuration operation interface during execution of the system boot process. The provided user interface allows the user to configure the IO device name.

In another example of the first aspect, the IO device includes at least two A device port, the name of the IO device stored in the BIOS memory includes a port name of each device port, and each device port is registered when the processor registers with the IO device. In this way, a fixed name can be further registered for each port of the IO device.

In another example of the first aspect, each device port of the IO device has a function number, and when the name of the IO device is configured, the processor is based on the received user input and the The feature number of each device port determines the port name for each device port.

In another example of the first aspect, the port name includes an IO device type and a port number, the input of the user is the IO device type and an IO device number, and the port number is used by the IO device The number and the function number of the device port are determined, and the port number is incremented as the function number is incremented on the basis of the IO device number. This automatically generates a device name for multiple ports of each IO device.

In another embodiment of the first aspect, the processor loads the name of the IO device into the memory in a Type 9 format in SMBIOS. In this way, the IO device name is loaded into the memory using the Type 9 format in the BIOS's existing SMBIOS, simplifying the operation.

A second aspect of the embodiments of the present invention provides an IO device registration method for a computer device, where the BIOS memory of the computer device stores a system boot program and an IO device name, and the method includes:

Loading the IO device name into a memory of the computer device during execution of the boot program;

When the IO device of the computer device is driven, the IO device name is obtained from the memory, and the IO device is registered according to the acquired IO device name.

In this way, since the name of the IO device is stored in the BIOS memory in advance, when registering, the IO device name is directly registered using the name of the preset stored IO device, so that the name of the IO device can be fixed without It changes due to the influence of other factors.

In an embodiment of the second aspect of the present invention, the method further includes: during the execution of the system booting procedure, configuring a name of the IO device according to a user input; storing the name of the IO device in In the BIOS memory. In this way, the user can root Configure the name of the IO device as needed.

In another embodiment of the second aspect of the present invention, the processor receives a user input by providing a configuration operation interface during execution of the system boot process. The provided user interface allows the user to configure the IO device name.

In another embodiment of the second aspect of the present invention, the IO device includes at least two device ports, and the name of the IO device stored in the BIOS memory includes a port name of each device port, in the pair IO When the device registers, it registers each device port of the IO device. In this way, a fixed name can be further registered for each port of the IO device.

In another embodiment of the second aspect of the present invention, each device port of the IO device has a function number; when configuring the name of the IO device, according to the input of the received user and each of the The feature number of the device port determines the port name for each device port.

In another embodiment of the second aspect of the present invention, the port name includes an IO device type and a port number, and the input of the user is the IO device type and an IO device number, the port number being by the IO The device number and the function number of the device port are determined, and the port number is incremented as the function number is incremented on the basis of the IO device number. This automatically generates a device name for multiple ports of each IO device.

In another embodiment of the second aspect of the present invention, the name of the IO device is loaded into the memory in a Type 9 format in SMBIOS. In this way, the IO device name is loaded into the memory using the Type 9 format in the BIOS's existing SMBIOS, simplifying the operation.

Embodiments of the present invention register a fixed name for each IO device. When the computer device has multiple IO devices of the same type, the name of the IO device does not change with the registration order of the IO device each time the computer is started. The change, so that the IO device connected to multiple IO device interfaces of the same type of computer device changes, such as newly inserted, or unplugged, so that the name of the IO device should not change, to avoid errors. In addition, when the computer equipment is deployed in batches, the deployment efficiency is improved.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the descriptions of the prior art will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without any inventive labor.

FIG. 1 is a schematic diagram showing changes in the name of an IO device registered when an IO device is registered to a computer device by the prior art.

2 is a structural diagram of a server to which an embodiment of the present invention is applied.

FIG. 3 is a flowchart of a method for configuring a name of an IO device of a computer device according to an embodiment of the present invention.

FIG. 4 is a flowchart of a method for registering a name of an IO device of a computer device according to an embodiment of the present invention.

FIG. 5 is a structural diagram of a data center to which an embodiment of the invention is applied.

FIG. 6 is a structural diagram of two servers serving the same application server in the data center shown in FIG. 5.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 2, which is a structural diagram of a computer device such as the server 20, the server 20 includes a CPU 201, a memory 203, a BIOS memory 204, a bus 202, and an IO device. The memory 203, the BIOS memory 204, the hard disk 205, the first network card 206, and the second network card 207 communicate with the CPU 201 via the bus 202. The hard disk 205, the first network card 206, and the second network card 207 shown in FIG. 2 are all IO devices of the server 20. The bus 202 can include a Peripheral Component Interconnect (PCI) interface, an Accelerated Graphical Port (AGP) interface, or a PCI-E interface. In the application scenario of the embodiment, the server 20 includes at least two IO devices of the same type. In this embodiment, the IO devices of the same type are the first network card 206 and the second network card 207. In an embodiment, other IO devices of the same type, such as a hard disk, may also be used. The first network card 206 and the second network card 207 both include two ports Port 1 and Port 2.

A BIOS boot program (not shown) is stored in the BIOS memory 204. After the server 20 is powered on, the CPU 201 acquires the system boot program from the BIOS memory 204, and runs the system boot program. An operating system (not shown) stored in the hard disk 205 is booted into the memory 203, and then the operating system is executed, and a driver (not shown) of each IO device is called from the hard disk 205. Each IO device is registered.

In this embodiment, in order to enable the same type of IO device to register a fixed name every time the server 20 starts up, a fixed name can be set for each IO device before the IO device is registered, and the set name is stored. In the BIOS memory.

In this embodiment, the manufacturer of the server may rewrite the system boot program before the server leaves the factory, so that the system boot program is provided with a configuration interface for setting the IO device name when the CPU 201 is running, and the specific setting method is shown in FIG. 3 . Said.

After the server 30 is powered on (step S301), the CPU 301 runs a system boot program (step S302), and the system boot program can provide an interface for asking the user whether to perform IO device name setting, and the user can select the IO device on the operation interface as needed. In the setting of the name, the CPU 301 provides an IO device configuration interface to the user through the system boot program in response to the user's operation (step S303), and the user can input the name of the IO device to be set through the configuration interface, and the input name includes Two parts, one part is the category of the IO device, the category is generally the name of the bus interface to which the IO device is connected, and the other is the number of the IO device. After receiving the setting input of the user (step 304), the CPU 301 receives the received The name of the IO device set by the user is stored in the BIOS memory 204 (step S305). Here, when the name of the IO device set by the user is stored in the BIOS memory 204, a mapping relationship between the IO device name and the port connecting the IO device is established. In this way, the IO device name can be associated with the port to which the IO device is connected. When the IO device is subsequently driven, since the name of the IO device is bound to the interface of the connected IO device, the name of the IO device does not change as the interface driving order changes.

In one embodiment, the IO device itself includes a plurality of ports. The first network card 206 in this embodiment includes two ports port1 and port2, each of port1 and port2. Both have a feature number. The first network card 207 in this embodiment includes two ports port1 and port2, and each of port1 and port2 has a function number. The CPU 201 generates port names for port1 and port2 respectively according to the received category of the IO device input by the user, the number of the IO device, and the function number of each port of the IO device input by the user. The port name includes an IO device type and a port number. The port number is determined by the IO device number and a function number of the device port, and the port number is incremented as the function number increases on the basis of the IO device number. The function numbers of each port are generally fixed, and are generally numeric and arranged in order. For example, the function numbers of the two ports of the first NIC are 1 and 2 respectively (for example, the function number of port1 is 1, port) If the function number of 2 is 2), after the CPU 301 receives the IO device type and the IO device number input by the user, the type of the IO device remains unchanged, and the port number is incremented as the function number is incremented, for example, assuming the user The IO device type of the first NIC is eth, and the IO device number is 1, the CPU 301 generates the port name eth1 for the port port 1 of the first NIC with the function number 1, and is the port with the function number 2 of the first NIC. Port2 generates the port name eth2, and assumes that the IO device type of the second NIC input by the user is eth, and the IO device number is 3, the CPU 301 generates the port name eth3 for the port port 1 of the second NIC with the function number 1 being the second port. Port port 2 with the function number 2 of the NIC generates the port name eth4. The generated port name is then stored in the BIOS memory 204. The above is only an example of the method of setting multiple port names when the IO device has multiple ports. In other embodiments, the function number of the IO device port may not be a number, and the port name generation may not necessarily be a number. The function number is incremented and incremented, and any manner of generating the port name of the IO device by the number input by the user and the port number is included in the protection scope of the present invention.

In the above way, you can set a fixed name for the port of each IO device or each IO device.

After the setting name of the IO device is set, the IO device name can be registered by using the IO device name stored in the BIOS memory 204. The specific registration method is as shown in FIG. 4.

After the system boot program loads the operating system into the memory 203, the CPU calls the driver driver IO device (step S401), loads the IO device name from the BIOS memory 204 to the memory 203 (step S402), after the operating system is loaded, CPU301 can be shipped The driver of each IO device registers each IO device (step S403), and at the time of registration, determines whether there is a name of the IO device in the memory 203 (step S404), and if so, acquires the name of the IO device Registration is performed, and if not, the CPU 301 assigns the device name to the IO device, and then registers with the assigned device name (step S405).

In step S402, when the IO device name is loaded from the BIOS memory 204 to the memory 203, the mapping relationship between the IO device name and the port connecting the IO device is loaded. When the driver registers an IO device, the name of the IO device can be found according to the port to which the IO device is connected.

In the above method, if the IO device includes multiple ports, the CPU 301 drives each port of the IO device, that is, the port name of each port of the IO device is obtained from the memory, and the acquired port name pair is utilized. Each port of the IO device is registered.

According to the IO device registration method described above, when the computer device includes a plurality of IO devices of the same type, each IO device registers the same name each time it is started, so that the application does not access the IO device with the same name. Will produce an error.

In addition, in this embodiment, in step S402, the CPU 201 loads the device name of the IO device into the memory through Type 9 in the SMBIOS (system management BIOS), which is a motherboard or system manufacturing. The unified specification that is required to display the product management information in a standard format, wherein Type 9 is used to manage the system slot information of the motherboard, that is, the bus interface information of the computer device in this embodiment.

In addition to being applied to a single server of the above embodiment, the IO device registration method of the computer device provided by the present invention is also applicable to batch configuration and registration of IO devices of a plurality of servers of a data center.

As shown in FIG. 6, it is a schematic diagram of an architecture of a data center including multiple servers.

One data center 60 includes a plurality of servers 600, and a plurality of servers 600 are connected to the switch 601. The external application server 602 obtains the required data from the server 600 of the data center 60 by connecting to the switch 601.

Sometimes a server 600 is difficult to meet the data requirements of the application server 602, that is, multiple servers 600 are required to provide data services for one application server 602, while servers 600 that serve the same application server 602 require the same configuration.

As shown in FIG. 7, the first server 70 and the second server 71 provide services for the same application server, and the first processor 701 of the first server 70 is connected to the first network card 702 and the second network card 703, the second The second processor 711 of the server 71 is connected to the third network card 712 and the fourth network card 714. The first network card 701 of the first server 70 is the same as the third network card 712 of the second server 71. The second network card 702 of the first server 70 is the same as the fourth network card 714 of the second server 71. The network cards all have two ports port1. And port2, the application server needs to provide services for the application server through port1 of the first network card 701 and port1 of the third network card 712.

However, based on the existing IO device name registration method, since the operating system assigns a number to the IO device according to the order of driving of the same type of IO device, when the first server 70 is configured, the operating system may first drive the first. The network card 701 registers, assigns the names of the two ports port1 and port2 of the first network card to eth0 and eth1, and then drives the second network card 702 to register, and assigns the names of the two ports port1 and port2 of the second network card 702 respectively. For eth2 and eth3, when the second server 71 is configured, the operating system may first drive the fourth network card 714 to register, and assign the names of the two ports port1 and port of the fourth network card 714 to eth0 and eth1, respectively, and then drive The third network card 712 registers, and the names registered to the two ports port1 and port2 of the third network card 712 are eth2 and eth3, respectively. In this way, the port name of the first network card 701 of the first server 70 is different from the port name of the third network card 712 of the second server 71, but the application server can only access the first server 70 and the second server 71 according to the port name. The device name determines the IO device to be used. If the application server actually needs to access the first server 70 through the port 1 of the first network card 701 of the first server 70, access the second through the port 1 of the third network card 712 of the second server 71. The server 71, at this time, according to the naming of the IO device by the operating system, respectively, the port 1 of the first network card 701 of the first server 70 and the port 1 of the fourth network card 714 of the second server 71 respectively generate an error. If the same IO device has different device names in the data center bulk service deployment, it needs to perform special identification and confirmation processing on a server-by-server basis, which seriously affects the efficiency and even the goal of not achieving batch deployment.

Therefore, in this scenario, you can also configure a fixed device name for the same type of IO device in each server according to the method in Figure 3. When you register the IO device, register it according to the method in Figure 4. Make servers that serve the same application server The IO device name is fixed and will not change due to the different drive order, which improves the configuration and registration efficiency of the server's IO device in the data center.

The IO device registration technology is described in detail when the computer device provided by the embodiment of the present invention is started. The principle and implementation manner of the present invention are described in the following. The description of the above embodiment is only for helping. The method of the present invention and its core idea are understood; at the same time, for those skilled in the art, according to the idea of the present invention, there are changes in the specific embodiments and application scopes. It should be understood that the invention is limited.

Claims

A computer device comprising: a processor, an input/output IO device, a memory, a BIOS memory, wherein the IO device, a memory, a basic input/output system BIOS memory are connected to the processor;

The BIOS memory is configured to store a system boot program and a name of the IO device;

The processor is configured to load a name of the IO device into the memory during execution of the booting program, and when the IO device is driven, obtain a name of the IO device from the memory, and according to the The acquired name of the IO device registers the IO device.
The computer device according to claim 1, wherein the processor is further configured to: during the execution of the system booting procedure, configure a name of the IO device according to a user input, and configure the IO device The name is stored in the BIOS memory.
The computer apparatus according to claim 2, wherein said processor receives a user input by providing a configuration operation interface during execution of said system boot program.
The computer device according to any one of claims 1 to 3, wherein the IO device includes at least two device ports, and the name of the IO device stored in the BIOS memory includes a port of each device port. Name, which is registered for each device port when the processor registers with the IO device.
The computer device according to claim 4, wherein each device port of the IO device has a function number;

When configuring the name of the IO device, the processor determines a port name of each device port according to the received user input and the function number of each device port.
An input/output IO device registration method for a computer device, the basic input/output system BIOS memory storage system boot program and the IO device name of the computer device, including:

Loading the IO device name into a memory of the computer device during execution of the boot program;

Acquiring the IO from the memory when the IO device of the computer device is driven a device name, and registering the IO device according to the obtained IO device name.
The method of claim 6 wherein the method further comprises:

During the execution of the system boot process, the name of the IO device is configured according to user input;

The name of the IO device is stored in the BIOS memory.
The method of claim 7 wherein the user input is received by providing a configuration operation interface during execution of the system boot process.
The method according to any one of claims 6 to 7, wherein the IO device includes at least two device ports, and the name of the IO device stored in the BIOS memory includes a port name of each device port. When registering an IO device, register each device port of the IO device.
The method of claim 9, wherein each device port of the IO device has a function number;

When configuring the name of the IO device, the port name of each device port is determined according to the input of the received user and the function number of each device port.