CN115658582A - PCIE equipment scanning method and server - Google Patents

Abstract

A PCIE device scanning method, the method may include: acquiring an identifier of a transfer card on a server; acquiring state information of the PCIE equipment inserted into the adapter card under the condition that the identification of the adapter card is matched with the identification pre-stored in the server, wherein the state information is used for representing whether the PCIE equipment completes initialization or not; and starting the PCIE equipment to scan under the condition that the PCIE equipment completes initialization. Before scanning the PCIE device, the in-place situation and the initialization situation of the PCIE device with a long initialization time are obtained first. And then, determining the time for starting scanning the PCIE equipment according to the acquired in-place situation and the initialization situation of the PCIE equipment. When the PCIE equipment can be accurately identified, time is not wasted to wait for the initialization of the PCIE equipment with longer starting time, and the starting time of the server is reduced.

Description

PCIE equipment scanning method and server

Technical Field

The present invention relates to the technical field of servers, and in particular, to a PCIE device scanning method and a server.

Background

With the high-speed serial computer interconnect express (PCIE) system configured on a server, the system becomes more and more complex. In the process of starting up the server, the time spent on starting up (initializing) the PCIE device system is also longer and longer. In the process that a PCIE device system is powered on together with a server, when a basic input/output system (BIOS) of the server starts scanning a PCIE device, the PCIE device is not initialized yet, and thus the BIOS cannot identify the PCIE device.

Disclosure of Invention

The application provides a PCIE equipment scanning method and a server. In the process of starting the server, the phenomenon that time is wasted for waiting for initialization of PCIE equipment with long starting time is avoided, and the starting time of the server is reduced.

In a first aspect, the present application provides a PCIE device scanning method, which is applied to a server, where the server includes a BIOS and a BMC, and the method includes: in the starting process of the server, the BIOS sends a query instruction to the BMC, wherein the query instruction is used for indicating the BMC to acquire the state information of the target PCIE equipment; the BMC responds to the query instruction, scans the adapter card connected with the server and determines whether a target adapter card exists according to a scanning result; when the BMC scans that a target adapter card exists, the BMC acquires state information of a target PCIE device inserted into the target adapter card, wherein the state information is used for indicating whether the target PCIE device completes initialization; the BMC sends the state information of the target PCIE equipment to the BIOS; the BIOS determines whether to initiate a PCIE device scan based on the state information of the target PCIE device.

That is to say, before scanning the PCIE devices on the server, the BIOS first determines whether the PCIE devices with a long initialization time are in place by determining whether the server is connected with an adapter card that matches the PCIE devices with a long initialization time. In the case that a PCIE device with a long initialization time is in place, the initialization state of the PCIE device with the long initialization time is acquired. And starting PCIE equipment scanning under the condition that the initialization of the PCIE equipment with longer initialization time is completed. The server can accurately wait when scanning the PCIE equipment, so that the waiting time is reduced, and the starting time of the server is reduced.

In a possible implementation manner, before the BMC obtains the state information of the target PCIE device inserted in the target riser card, the method further includes: the BMC acquires an identifier of a target PCIE device inserted into a target adapter card; under the condition of acquiring the identifier of the target PCIE device inserted into the target adapter card, the BMC acquires the state information of the target PCIE device inserted into the target adapter card.

That is to say, when determining whether a PCIE device with a long initialization time is connected to the electronic device through the BMC, the BIOS avoids a situation that a switch card corresponding to the PCIE device with a long initialization time is connected to the server, but the PCIE device is not inserted into the switch card. After determining that the adapter card corresponding to the PCIE device with a long initialization time is connected to the electronic device, the BMC needs to continue to acquire the identifier, such as the hardware ID, of the PCIE device with a long initialization time. Only after the hardware ID of the PCIE device with a long initialization time is obtained, the BMC may determine that the PCIE device with a long initialization time is connected to the electronic device.

In one possible implementation, the method further includes: and under the condition that the identification of the target PCIE equipment inserted into the target adapter card is not acquired, the BMC triggers the BIOS to start PCIE equipment to scan.

That is to say, if the BMC does not acquire the identifier of the target PCIE device, the BMC may determine that the target PCIE device is not in place. At this time, the BMC may directly trigger the BIOS to start scanning of the PCIE device, which reduces the start time of the server.

In one possible implementation manner, the BMC scans the adapter card connected to the server in response to the query instruction, and determines whether a target adapter card exists according to a scanning result, including: the BMC scans the adapter card connected with the server to acquire the identifier of the adapter card connected with the server; the BMC matches the obtained identification of the adapter card with the identification of the adapter card stored in the BMC; if the matching is successful, the BMC determines that the server is connected with the target adapter card.

That is to say, when determining whether the server is connected with the target adapter card, the BMC may determine whether the adapter card connected to the server includes the target adapter card by acquiring the identifier of the adapter card connected to the server.

In one possible implementation manner, the determining, by the BIOS, whether to start scanning of the PCIE device based on the state information of the target PCIE device includes: if the BIOS determines that the target PCIE equipment is initialized, the BIOS starts the PCIE equipment to scan; if the BIOS determines that the target PCIE equipment is not initialized completely, the BIOS acquires the state information of the target PCIE equipment after a preset time interval, and determines whether to start the PCIE equipment for scanning or not according to the state information of the PCIE equipment.

That is to say, when the BIOS recognizes that the PCIE device with a long initialization time is connected to the server, and the PCIE device with a long initialization time does not complete initialization, the BIOS may continue to acquire the initialization state of the PCIE device with a long initialization time after waiting for a period of time, so as to ensure that the BIOS can immediately perform scanning of the PCIE device after the initialization of the PCIE device with a long initialization time is completed, and thus, accurate waiting is achieved.

In one possible implementation, the method further includes: under the condition that the BMC scans that the target adapter card exists, if the state information of the target PCIE device inserted into the target adapter card is not acquired within a first time threshold, the BIOS starts the PCIE device to scan.

That is to say, before the BIOS scans the PCIE device, the BIOS avoids the situation that the BIOS waits indefinitely when the PCIE device with a long initialization time is abnormal. A first time threshold needs to be preset. If the BIOS acquires the state information of the PCIE with a longer initialization time within the first time threshold, the BIOS may determine whether to start PCIE scanning according to the acquired state information of the PCIE with a longer initialization time. If the BIOS does not acquire the state information of the PCIE device with a long initialization time within the first time threshold, the BIOS may also start scanning of the PCIE device.

In one possible implementation, the method further includes: and under the condition that the BMC does not scan the target adapter card, triggering the BIOS by the BMC to start PCIE to scan.

That is to say, when the BMC does not acquire the adapter card corresponding to the PCIE device with a long initial time, the BMC may determine that the PCIE device with a long initialization time is not in place. At this time, the BIOS may directly initiate the PCIE device scan.

In a possible implementation manner, the obtaining, by the BMC, state information of a target PCIE device inserted in a target riser card includes: the BMC acquires the initialization state of the target PCIE device by acquiring information stored in any one of a general input/output port, a complex programmable logic device, and a register on the target PCIE device.

That is, after the target switch card is initialized, the initialization state may be presented through a general input/output port, a complex programmable logic device, or a register on the target PCIE device.

In one possible implementation manner, the target PCIE device is connected to the server through a high-speed cable.

That is to say, the target PCIE device may be a PCIE device that is separately powered on and connected to the server through the high-speed cable, besides being plugged into the server.

In a second aspect, the present application provides a server, comprising: the BIOS and the BMC,

the BIOS is used for sending a query instruction to the BMC in the starting process of the server, and the query instruction is used for indicating the BMC to acquire the state information of the target PCIE equipment;

the BMC responds to the query instruction, scans the adapter card connected with the server, and determines whether a target adapter card exists according to a scanning result; when the BMC scans that a target adapter card exists, the BMC acquires state information of a target PCIE device inserted into the target adapter card, wherein the state information is used for indicating whether the target PCIE device completes initialization;

the BMC is also used for sending the state information of the target PCIE equipment to the BIOS;

the BIOS is further configured to determine whether to start scanning of the PCIE device according to the state information of the target PCIE device.

In a third aspect, the present application provides an electronic device, comprising:

at least one memory for storing a program;

at least one processor configured to execute the memory-stored program, the processor being configured to perform the method of the first aspect or any of the possible implementations of the first aspect when the memory-stored program is executed.

In a fourth aspect, the present application provides a computer-readable medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of the first aspect or any one of the possible implementations of the first aspect.

In a fifth aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method described in the first aspect or any one of the possible implementations of the first aspect.

It is understood that the beneficial effects of the second aspect to the fifth aspect can be referred to the related description of the first aspect, and are not described herein again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a server according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a scanning method for a PCIE device provided in the embodiment of the present application;

fig. 3 is a schematic flowchart of another scanning method for PCIE devices provided in the embodiment of the present application;

fig. 4 is a schematic flowchart of another scanning method for PCIE devices provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of an identification device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a chip according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described below with reference to the accompanying drawings.

Any embodiment or design described herein as "exemplary," "for example," or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the words "exemplary," "for example," or "exemplary" is intended to present relevant concepts in a concrete fashion.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the indicated technical feature. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

PCIE belongs to high-speed serial point-to-point double-channel high-bandwidth transmission, connected equipment distributes independent channel bandwidth and does not share bus bandwidth, and the PCIE mainly supports functions of active power management, error reporting, end-to-end reliable transmission, hot plug, service quality and the like. PCIE devices are also deployed in complex computer systems, such as servers. Among the common PCIE devices are: network cards, video cards, host Bus Adapters (HBAs), and the like.

When a PCIE device is deployed on a server, in a server startup process, according to a PCIE protocol, after the server is started, the PCIE device also needs to meet a certain startup time requirement (for example, complete initialization of the PCIE device within 100ms of power on). If the PCIE device does not complete initialization before the server performs PCIE scanning, the BIOS in the server may not recognize the PCIE device when scanning the PCIE device.

In the related art, because the BIOS and the PCIE device are independent systems, and the BIOS cannot sense whether the PCIE device completes initialization, in order to ensure that the PCIE device with a long initialization time can be scanned, the BIOS selects to wait for a long fixed time before scanning the PCIE device, so that the BIOS start time is prolonged, and the start time of the entire system is prolonged.

In view of this, an embodiment of the present application provides a PCIE device scanning method, which is mainly applied to a server and aims at a process of identifying, by a BIOS, PCIE devices with a long initialization time, such as a type a, in a server startup process. When the BIOS can accurately identify the PCIE equipment, time is not wasted to wait for the initialization of the PCIE equipment with long starting time, accurate waiting time is achieved, and the starting time of the BIOS is reduced. It is understood that the type a PCIE device, i.e., the PCIE device with a longer initialization time, is determined by the PCIE device itself or set by a user or a manufacturer, etc. In some cases, in a production equipment phase of the server, a manufacturer needs to write hardware information (e.g., a hardware ID) of a PCIE device of type a into firmware of a Baseboard Management Controller (BMC), that is, a white list of the PCIE device of type a is established in the BMC firmware, so that the server can determine whether the PCIE device is a PCIE device of type a according to whether the hardware information of the PCIE device inserted into the server is in the white list. When a type a PCIE device is connected to a server, a dedicated adapter card, that is, a dedicated Riser card needs to be used. After a user designates a certain type of Riser card as the dedicated Riser card, in a production equipment stage of the server, the manufacturer needs to write hardware information (for example, a hardware ID) of the dedicated Riser card into the BMC firmware and establish a white list of the dedicated Riser card in the BMC firmware. Or, in the using process, the user may add the hardware information of the PCIE device of type a and/or the hardware information of the Riser card in the BMC of the server according to the requirement, that is, the user may change, newly add, delete, and the like the white list of the PCIE device of type a and/or the white list of the Riser card in the BMC, which is not limited herein.

It can be understood that the type a PCIE device is not necessarily a device inserted into the server, and may also be a PCIE device that is separately powered on and connected to the server through a high-speed cable, besides the server.

Fig. 1 shows an exemplary structural diagram of a server. As shown in fig. 1, the server includes: BIOS, riser card, BMC, PCIE device. The BIOS is a set of programs that is fixed on a ROM chip on the server internal board, and stores the most important basic input/output programs of the computer (server), system setting information, post-boot self-test programs, and system self-start programs. Its primary function is to provide the lowest level and most direct hardware setup and control for the computer. The Riser card may also be called a PCIE Riser card, generally refers to a function expansion card or a switch card inserted on a PCIE interface, and is a new generation bus interface. For example, a server motherboard may provide a relatively long slot (non-standard PCIE interface), and then the Riser card is inserted into the slot, and at the same time, the Riser card provides one to several standard PCIE slots, so that various PCIE devices (e.g., a network card, an HBA card, a video card, etc.) may be inserted into the server. The BMC is a control unit which is deployed on a server single board and provided with an independent power supply and an independent I/O interface, does not depend on a processor, a BIOS or an operating system of the server to work, and is a non-proxy management subsystem which runs in the server independently.

The BIOS communicates with the BMC via an Enhanced Serial Peripheral (ESPI) bus. The BMC communicates with the Riser card through an Inter-Integrated Circuit (I2C) to read information of the Riser card and identify whether the Riser card is dedicated to the PCIE device. The method includes the steps that a BMC reads hardware ID information or initialization information of a PCIE device through a general input/output port (GPIO), or the BMC reads a pin signal of a PCA9555 through an I2C bus to obtain ID information or initialization information of the PCIE device, or the BMC reads information in a Complex Programmable Logic Device (CPLD) through the I2C bus to obtain ID information or initialization information of the PCIE device. The PCIE equipment communicates with the Riser card through an I2C bus.

Next, based on the content described above, a PCIE device scanning method provided in the embodiment of the present application is introduced.

Referring to fig. 2, fig. 2 is a schematic flowchart illustrating a scanning method for PCIE devices according to an embodiment of the present application. As shown in fig. 2, the method includes: S201-S207.

S201, before the BIOS scans the PCIE equipment, the BIOS triggers the BMC to acquire the state information of the type A PCIE equipment.

In this embodiment, in the starting process, the server powers on the BIOS, the BMC, and the PCIE device, that is, starts the BIOS, the BMC, and the PCIE device. The BIOS is started by firstly carrying out a POST flow, then initializing equipment and then carrying out system boot. Namely, hardware equipment is initialized, and a memory space mapping chart of the system is established, so that the software and hardware environment of the system is brought to a proper state, and a correct environment is prepared for finally calling an operation kernel. The final boot loader loads the operating system kernel image into Random Access Memory (RAM) and passes system control to it. Therefore, the BIOS needs to identify the PCIE device on the server during the boot process. Because the BIOS is an in-band device, and the BMC and PCIE devices are out-of-band software. Therefore, the BIOS cannot directly acquire the state information of the PCIE device, and the BIOS needs to acquire the state information of the PCIE device through the BMC device.

In one possible example, when the BIOS acquires the state information of the PCIE device of type a, the BIOS may send an intelligent platform management interface (ipmi) command to the BMC through an ESPI channel (bus) to trigger the BMC to acquire the state information of the PCIE device of type a.

In one possible example, the state information of a type-a PCIE device includes an in-place state of the PCIE device and an initialization state of the PCIE device. The in-place means that the PCIE device is inserted into the server.

S202, the BMC scans whether a special Riser card exists on the server.

In this embodiment, when acquiring the state information of the type a PCIE device, the BMC first needs to determine whether the type a PCIE device exists in the system. Since the type a PCIE device can be connected to the server through a proprietary Riser card. The BMC can judge whether the type A PCIE equipment is connected to the server by judging whether the server has a special Riser card or not.

The BMC can determine whether the Riser card is a special Riser card by acquiring the hardware information of the Riser card. In one possible example, the BMC reads a level signal on a pin of a Riser card inserted on a server slot through a bus (such as I2C) to determine the hardware ID of the Riser card. And then, the BMC compares the determined hardware ID of the Riser card with the Riser card hardware ID pre-written in the BMC, and when the Riser card hardware ID acquired by the BMC is the same as the Riser card hardware ID information stored in the BMC, the BMC determines that the Riser card is a special Riser card.

In another possible example, the Riser card may write its hardware ID to an erasable programmable Read Only Memory (ROM) within the Riser card. The BMC may read the hardware ID stored in the eprom storage medium within the Riser card over a bus (such as I2C). And then, the BMC compares the determined hardware ID of the Riser card with the previously written hardware ID of the Riser card in the BMC, and when the hardware ID of the Riser card acquired by the BMC is the same as the hardware ID of the Riser card stored in the BMC, the BMC determines that the Riser card is a special Riser card.

In some optional embodiments, hardware information of a non-dedicated Riser card, such as an ID, is stored in the BMC, and the non-dedicated Riser card is used to access a PCIE device with a short initialization duration (for example, the initialization duration is less than a preset duration). And when the hardware ID of the Riser card acquired by the BMC is not the same as all the hardware IDs of the non-special Riser cards stored in the BMC, the BMC determines that the Riser card is the special Riser card.

S203, when the BMC determines that the dedicated Riser card exists on the server, the BMC obtains the hardware ID information of the type a PCIE device connected to the server through the dedicated Riser card.

In this embodiment, after the BMC determines that the dedicated Riser card exists on the server, the BMC cannot determine that the type-a PCIE connected to the server through the dedicated Riser card is in place. In some cases, a dedicated Riser card is inserted into a slot on the server motherboard, but a type a PCIE device is not inserted into the slot of the dedicated Riser card. Therefore, the BMC needs to further acquire the hardware ID of the type-a PCIE device connected to the server through the dedicated Riser card, so as to more accurately confirm that the type-a PCIE device is in place. For example, the BMC may determine whether the type a PCIE device is inserted into the server by obtaining the hardware ID of the type a PCIE device inserted into the dedicated Riser card. When the BMC can read the hardware ID of the type a PCIE device inserted into the dedicated Riser card, the BMC may determine that the type a PCIE device is in place. Otherwise, the BMC determines that the type a PCIE device is not in place.

In one possible example, a type a PCIE device includes GPIOs, i.e., some pins on the type a PCIE device that can output high/low levels. The BMC may obtain the hardware ID of the type a PCIE device by reading, through the bus, level information on the GPIO pin on the type a PCIE device inserted into the dedicated Riser card.

In one possible example, a CPLD is included on a type a PCIE device. In the production equipment phase, a manufacturer may write the hardware ID of the PCIE device into the CPLD of the PCIE device in advance. The BMC can read hardware ID information stored in a CPLD (complex programmable logic device) on the A-type PCIE equipment inserted into the special Riser card through a bus I2C.

In one possible example, a PCA9555 register is further included in the type a PCIE device, and in the production equipment phase, the generator may write the hardware ID of the PCIE device into the PCA9555 register of the PCIE device in advance. The BMC can read the hardware ID information stored in the PCA9555 on the type a PCIE device inserted on the dedicated Riser card through the bus I2C.

And S204, after the BMC acquires the hardware ID information of the type-A PCIE equipment, the BMC acquires the initialization information of the type-A PCIE equipment.

In this embodiment, after acquiring the hardware ID information of the type a PCIE device, the BMC may determine that the type a PCIE device is in place. The BMC needs to continue to acquire initialization information of the type a PCIE device.

In one possible example, the BMC may determine the initialization state of a type a PCIE device by reading level information on a GPIO pin on the device. For example, before the type a PCIE device is powered on, the level of the GPIO pin of the type a PCIE device is a low level, and after the type a PCIE device completes initialization, the level of the GPIO pin of the type a PCIE device is pulled high and changes to a high level.

In one possible example, a type a PCIE device may write its initialization information into the CPLD registers. The BMC may determine initialization information of the type a PCIE device by reading the value of the CPLD register on the type a PCIE device through the bus.

In one possible example, a type a PCIE device may write its initialization state into a PCA9555 register on the type a PCIE device. For example, a type a PCIE device may write initialization state information of the type a PCIE device by pulling an electrical signal to or from a pin in the PCA 9555. For example, before the type a PCIE device is powered on, the level of the pin of the PCA9555 register of the type a PCIE device is low, and after the type a PCIE device completes initialization, the level of the pin of the PCA9555 register of the type a PCIE device is pulled high and becomes high. The BMC may read a pin signal of the PCA9555 register on the type a PCIE device through the I2C bus to acquire initialization information of the type a PCIE device.

S205, the BMC sends first information to the BIOS, wherein the first information is used for indicating the state of the type-A PCIE equipment.

In this embodiment, the states of the type a PCIE device include: the type a PCIE device is not in place, the type a PCIE device is initialized, and the type a PCIE device is not initialized. The initialization completion of the type a PCIE device and the initialization non-completion of the type a PCIE device are determined when the type a PCIE device is in place.

In one possible example, when the BMC determines that the type a PCIE device is not in place, the BMC sends first information to the BIOS, where the first information is used to characterize that the type a PCIE device is not in place.

In another possible example, when the BMC determines that the type a PCIE device is in place, the BMC needs to further determine initialization information of the type a PCIE device, and send the acquired initialization information to the BIOS as the first information. At this time, the first information is used to represent that the initialization of the type a PCIE device is completed or not completed.

It is understood that S203, S204 are optional steps. When the BMC determines that the special Riser card does not exist on the server, or when the BMC determines that the special Riser card does not exist on the server but the BMC does not read the hardware ID information of the type-A PCIE device, the BMC sends first information to the BIOS, and the first information is used for indicating that the type-A PCIE device does not exist on the server.

S206, the BIOS determines to start PCIE equipment scanning according to the first information.

In this embodiment, the condition of triggering the BIOS to start scanning of the PCIE device includes 3 types: (1) completing initialization of type-A PCIE equipment on a server; (2) No type a PCIE device exists on the server (the type a PCIE device is not in place); (3) The time for the BIOS to wait for the initialization of the type A PCIE equipment to be completed exceeds a preset first time threshold.

For the case of the (1), the BIOS determines the initialization state of the type a PCIE device on the server according to the first information sent by the BMC. When the first information sent by the BMC includes the initialization state information of the type-a PCIE device on the server, the BIOS may directly acquire the initialization state of the type-a PCIE device from the first information. When the BIOS determines that the initialization of the PCIE equipment of type A on the server is completed, the BIOS directly starts scanning the PCIE equipment.

Before the BIOS starts the PCIE equipment scanning, the initialization state for identifying the type A PCIE equipment is added, so that the BIOS can immediately scan the PCIE equipment after identifying that the type A PCIE equipment is initialized, the accurate waiting is realized, the waiting time is reduced, and the starting time of the BIOS is reduced.

It can be understood that when there are multiple type-a PCIE devices on the server, the BIOS needs to wait until all the type-a PCIE devices on the server are initialized. When the type a PCIE device and the non-type a PCIE device coexist on the server, the type a PCIE device is a PCIE device with a long initialization time, that is, the initialization time of the type a PCIE device is longer than that of the non-type a PCIE device. Therefore, when a type a PCIE device is initially completed, a non-type a PCIE device must also be initially completed.

For the case of the (2), when the first information sent by the BMC indicates that the type a PCIE device does not exist on the server, the BIOS directly starts scanning the PCIE device. At this time, the BIOS mainly scans other PCIE devices on the server except the type a PCIE device to obtain PCIE device information connected to the server.

Before the BIOS starts PCIE equipment scanning, the in-place condition for identifying the type A PCIE equipment is added, so that the BIOS can immediately scan the PCIE equipment when identifying that the type A PCIE equipment is not in place, and invalid waiting is not needed. And (4) aiming at the situation of the type (3), the BIOS acquires the waiting time after the BIOS is electrified in real time, and when the waiting time of the BIOS exceeds a preset first threshold value, the BIOS directly starts the PCIE equipment to scan. The first time threshold may be set by a manufacturer according to the performance requirement of the server, and is programmed into the BIOS in the production equipment stage. Or the user can set the equipment according to the requirements in the use stage of the equipment.

In one possible example, a user may enter a server initiated setup interface via a system command from the server and enter a first time threshold at the interface.

And S207, the BIOS determines that the type-A PCIE equipment exists on the server, the initialization of the type-A PCIE equipment is not completed, and after the BIOS is spaced for a certain time threshold, the BMC is triggered to acquire the state information of the type-A PCIE equipment.

In this embodiment, when the BIOS determines that the type a PCIE device exists on the server according to the first information sent by the BMC and the initialization of the PCIE device is not completed, the BIOS determines whether the wait time after power-on exceeds a preset first time threshold. When the BIOS determines that the waiting time after power-on does not exceed the first time threshold, the BIOS waits for a period of time (such as 1 second), the BIOS continues to send a message to the BMC, and the BMC is triggered to acquire initialization information of the type-A PCIE device on the server. Then, the BIOS determines whether to start scanning of the PCIE device according to the state information of the PCIE device of type a returned by the BMC. The process of the BIOS continuing to send the message to the BMC and triggering the BMC to acquire the initialization information of the type a PCIE device on the server may be the same as the process described in S202 to S205. Here, the description is omitted.

In one possible example, the interval time for triggering the BMC to acquire the type a PCIE device on the service by the BIOS may be set by a manufacturer according to the performance requirement of the server, and is programmed into the BIOS in the production equipment stage.

In another possible example, the BIOS triggers the BMC to acquire the time interval of the type a PCIE device on the service, or may be set by the user according to a requirement in the device use stage. For example, a user may enter a server start setting interface through a system command of the server, and input a BIOS to trigger the BMC to acquire an interval time threshold of the type a PCIE device on the service on the interface.

In the embodiment of the invention, in the starting process of the server, the server provides a set of mechanism for identifying whether the PCIE equipment of the type A is in place or not out of band aiming at the PCIE equipment of the type A. When the BMC recognizes that the PCIE device of type a is in place through the mechanism, the BMC further obtains the initialization state of the PCIE device of type a and returns the initialization state to the BIOS, so that in the process of starting the server, the BIOS may determine whether to start scanning of the PCIE device or start the waiting time before scanning of the PCIE device according to the initialization condition of the PCIE device of type a on the server. Before the scanning of the PCIE equipment is started by the BIOS, an accurate waiting mechanism is set, so that the server does not need to be adapted and modified due to possibly lengthened initialization time when the PCIE equipment inserted in the service is subsequently evolved, and the expansibility and the compatibility of the server are improved.

Based on the content described above, an embodiment of the present application further provides a PCIE device scanning method. Fig. 3 is a flowchart illustrating a scanning method for a PCIE device according to an embodiment of the present application. In the embodiment of the present application, a description is given by taking a type a PCIE device as an intelligent network card. As shown in fig. 3, the method includes: S301-S308.

S301, the BIOS sends an ipmi command to the BMC so that the BMC can inquire the initialization state of the intelligent network card.

In this embodiment, in the BIOS start stage, before the BIOS scans the PCIE device, the BIOS may send an ipmi command to the BMC through the ESPI bus to trigger the BMC to acquire the initialization state of the smart network card.

And S302, the BMC determines whether the intelligent network card is in place, and executes S303 when the BMC determines that the intelligent network card is in place, or executes S304.

In this embodiment, before the BMC obtains the initialization state of the intelligent network card, the BMC first needs to determine whether the intelligent network card is in place. Specifically, after receiving the ipmi command sent by the BIOS, the BMC scans all Riser cards on the server, and identifies whether there is a dedicated Riser card for the smart network card. If the BMC identifies that the Riser card special for the intelligent network card exists, the BMC needs to further acquire the hardware ID of the intelligent network card inserted into the special Riser card. If the BMC can correctly acquire the hardware ID of the intelligent network card, the BMC determines that the intelligent network card is in place. Otherwise, the BMC determines that the intelligent network card is not in place.

If the BMC scans all the Riser cards on the server and does not identify the Riser card special for the intelligent network card, the BMC determines that the intelligent network card is not in place.

S303, the BMC acquires initialization information of the intelligent network card.

In this embodiment, after the BMC determines that the intelligent network card is in place, the BMC may obtain initialization information of the intelligent network card. In one possible example, after the BMC recognizes that the intelligent network card is in place, the BMC may read a CPLD register of the intelligent network card through the I2C (the intelligent network card may write the initial state into the register), so as to obtain the initialization state of the intelligent network card.

The specific process of acquiring the initialization information of the intelligent network card by the BMC may refer to S204 in the above embodiment.

S304, the BMC sends first information to the BIOS, and the first information is used for indicating the state of the intelligent network card.

In this embodiment, after the BMC determines the state of the smart network card, the BMC needs to return the on-site state and the initialization state of the smart network card to the BIOS as a response message of the ipmi command.

In one possible example, the BMC determines that the intelligent network card is not in place, and sends first information to the BIOS as a response message of the ipmi command, where the first information is used to indicate that the intelligent network card is not in place.

In one possible example, the BMC determines that the smart network card is in place and obtains initialization information of the smart network card. The BMC sends first information to the BIOS as a response message of the ipmi command, wherein the first information comprises: at least one of the initialization information of the intelligent network card and the initialization state information of the intelligent network card. The initialization state information of the intelligent network card is any one of initialization completion and initial incompletion.

S305, the BIOS determines whether the intelligent network card is in place according to the first information, and executes S306 when the intelligent network card is in place, or executes S308.

S306, the BIOS determines the initialization state of the intelligent network card according to the first information, and executes S307 when the initialization state of the intelligent network card is incomplete, or executes S308 otherwise.

In this embodiment, the BIOS obtains the presence and the initialization state of the smart network card according to the BMC return ipmi message. The BIOS can confirm the state of the intelligent network card according to the first information returned by the BMC and comprises the following steps: the intelligent network card is not in place, the intelligent network card is in place and the initialization is completed, and the intelligent network card is in place and the initialization is not completed.

In a possible example, when the first information returned by the BMC only includes initialization information of the intelligent network card, the BIOS needs to determine an initialization state of the intelligent network card according to the initialization information of the intelligent network card included in the first information. When the first information returned by the BMC comprises the initialization state of the intelligent network card, the BIOS can directly acquire the initialization state of the intelligent network card from the first information without additional judgment.

S307, the BIOS waits for a fixed interval time and executes S301.

In this embodiment, when the BIOS determines that the intelligent network card is in place and the initialization state of the intelligent network card is not complete, the BIOS starts to trigger the BMC to acquire the initialization state of the intelligent network card every a fixed time interval, that is, the BIOS waits for a period of time (for example, 1S) before performing S301 to S306 again, where the waiting time of the BIOS may be preset.

And when the BIOS determines that the initialization of the intelligent network card is completed, the BIOS stops acquiring the initialization information of the intelligent network card. Or, when the initialization state of the intelligent network card acquired by the BIOS is not completed all the time within the first time threshold (waiting timeout), the BIOS may consider that the intelligent network card is abnormal, stop acquiring the initialization information of the intelligent network card, and start scanning of the PCIE device.

S308, the BIOS starts scanning the PCIE equipment on the server.

In this embodiment, when the BIOS determines that the intelligent network card is not in place or the intelligent network card is in place and initialization is completed, the BIOS may start scanning the PCIE device. Or, when the initialization state of the intelligent network card acquired by the BIOS is not completed all the time within the first time threshold (waiting timeout), the BIOS may consider that the intelligent network card is abnormal, stop acquiring the initialization information of the intelligent network card, and start scanning of the PCIE device. It can be understood that, in the embodiment of the present application, a first time threshold is preset, when the BIOS is within the first time threshold, the intelligent network card (a-type PCIE device) is obtained in real time, and if at any time within the first time threshold, the BIOS determines that the intelligent network card is not in place or the intelligent network card is in place and initialization is completed, the BIOS starts to scan the PCIE device on the server. If the BIOS determines that the intelligent network card is in place within the first time threshold value, but the BIOS does not wait until the initialization of the intelligent network card is completed, the BIOS can consider that the intelligent network card is abnormal, the BIOS stops acquiring the initialization information of the intelligent network card and starts scanning PCIE equipment on the server.

Based on the content described above, an embodiment of the present application further provides a PCIE device scanning method. Fig. 4 is a flowchart illustrating a scanning method for a PCIE device according to an embodiment of the present application. As shown in fig. 4, the method includes: S401-S405.

S401, in the process of starting the server, the BIOS on the server sends a query instruction to the BMC, wherein the query instruction is used for indicating the BMC to acquire the state information of the target PCIE device.

In this embodiment, the target PCIE device may be a type a PCIE device. Since the type a PCIE device is a PCIE device with a long initialization time. Therefore, the BIOS may acquire the state information of the type a PCIE device through the BMC before starting the scanning of the PCIE device to determine whether the initialization of the type a PCIE device is completed.

S402, the BMC responds to the query instruction sent by the BIOS, scans the adapter card connected with the server, and determines whether a target adapter card exists according to the scanning result.

In this embodiment, after receiving the query instruction sent by the BIOS, the BMC may scan the adapter card (i.e., riser card) connected to the server, and determine whether the target PCIE device is in place by determining whether the server is connected to the target adapter card (i.e., riser card dedicated to a-type PCIE device). Specifically, the BMC may compare the acquired hardware ID of the adapter card with an adapter card hardware ID pre-written in the BMC, and when the adapter card hardware ID acquired by the BMC is the same as adapter card hardware ID information stored in the BMC, the BMC determines that the adapter card is a target adapter card. The process of determining whether the dedicated Riser card exists in the Riser cards connected to the server by the BMC may refer to S202, which is not described herein again.

S403, when the BMC scans that the target adapter card exists, the BMC obtains status information of the target PCIE device inserted in the target adapter card, where the status information is used to indicate whether the target PCIE device completes initialization.

In this embodiment, after the BMC scans the target adapter card, the BMC may consider the type a PCIE device to be in place. At this time, the BMC may obtain the state information of the target PCIE device inserted in the target riser card. The process of acquiring the state information of the target PCIE device inserted into the target adapter card by the BMC may refer to S204, which is not described herein again.

In one possible example, to avoid a situation where a target riser card is connected to a server but no PCIE device is inserted on the target riser card. The BMC needs to further acquire the hardware ID of the target PCIE device connected to the server through the target adapter card, so as to more accurately confirm that the target PCIE device is in place. After determining that the target PCIE device is in place, the BMC may obtain state information of the target PCIE device.

S404, the BMC sends the acquired state information of the target PCIE device to the BIOS.

In this embodiment, after acquiring the state information of the target PCIE device, the BMC further needs to send the acquired state information of the target PCIE device to the BIOS, and the BIOS determines the initialization state of the target PCIE device.

S405, the BIOS determines whether to start PCIE equipment scanning according to the state information of the target PCIE equipment.

In this embodiment, after the BIOS acquires the state information of the target PCIE device, the BIOS determines whether the initialization of the target PCIE device is completed according to the acquired state of the target PCIE device. If the BIOS determines that the target PCIE device is initialized, the BIOS may start scanning the PCIE device. Due to the long initialization time of the target PCIE device. When the BIOS determines that the initialization of the target PCIE device is completed, then the initialization of other PCIE devices on the server is also completed. At this time, the BIOS may start the PCIE device scan.

In one possible example, when the BIOS determines that the target PCIE device is not present on the server, the BIOS may also immediately initiate a PCIE device scan.

In one possible example, when the BIOS determines that the target PCIE device exists on the server and the target PCIE device does not complete initialization, the BIOS may wait for a period of time, obtain the initialization state of the target PCIE device again, and determine whether to start scanning of the PCIE device according to the initialization state of the target PCIE device. If the BIOS does not acquire the initialization state of the target PCIE device within a preset time period. The BIOS may directly perform scanning of the PCIE device after a preset time is reached.

Based on the method in the foregoing embodiment, an embodiment of the present application further provides a scanning device, please refer to fig. 5, and fig. 5 is a schematic structural diagram of an identification device provided in the embodiment of the present application. As shown in fig. 5, the electronic device 500 includes: the device comprises an acquisition module 510, a processing module 520 and a storage module 530.

The collecting module 510 is configured to collect status information of a type a PCIE device. The state information of the type-A PCIE equipment comprises the following steps: at least one of in-place state information of the type-A PCIE device and initialization information of the type-A PCIE device.

The storage module 530 is configured to store the state information of the type-a PCIE device acquired by the acquisition module 510.

The processing module 520 is configured to determine the state of the type a PCIE device according to the state information of the type a PCIE device acquired by the acquisition module 510, and determine whether to scan a PCIE device on the electronic device according to the state of the type a PCIE device. Wherein, the state of the type a PCIE device includes: type a PCIE devices are not in place, type a PCIE devices are in place and initialization is not complete, and type a PCIE devices are in place and initialization is complete.

In one possible example, after the acquisition module 510 acquires the state information of the type a PCIE device, the acquired state information of the type a PCIE device is directly sent to the processing module 520, and the processing module 520 determines the state of the type a PCIE device according to the state acquired by the acquisition module 520.

In another possible example, after the collecting module 510 collects the state information of the type a PCIE device, the collecting module 510 determines the state of the type a PCIE device according to the collected state information. Then, the acquisition module 510 sends the determination result to the processing module 520, so that the processing module 520 can directly obtain the initialization state of the type a PCIE device without performing additional determination.

In this embodiment, a specific process of the acquisition module 510 acquiring the state information of the type a PCIE device, and a process of the processing module 520 determining the state of the type a PCIE device according to the state information of the type a PCIE device acquired by the acquisition module 510, and determining whether to scan the PCIE device on the electronic device according to the state of the type a PCIE device may refer to descriptions of S201 to S207 in the foregoing embodiment, which is not described herein again.

The embodiment of the electronic device shown in fig. 5 is merely illustrative. For example, the division of the modules is only one logical function division, and there may be another division manner in actual implementation. For example, multiple modules or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. Each functional module in the embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules are integrated into one module.

Based on the methods in the foregoing embodiments, embodiments of the present application provide a computer-readable storage medium, which stores a computer program, and when the computer program runs on a processor, causes the processor to execute the methods in the foregoing embodiments.

Based on the methods in the foregoing embodiments, the present application provides a computer program product, which is characterized by causing a processor to execute the methods in the foregoing embodiments when the computer program product runs on the processor.

Based on the method in the foregoing embodiment, an embodiment of the present application provides a computing device, where the computing device includes a motherboard and a chip. The chip is integrated on the mainboard and comprises at least one memory for storing programs; at least one processor for executing the memory-stored program, the processor being configured to perform the method of the above-described embodiments when the memory-stored program is executed. In the embodiment of the present application, the computing device may be a network device such as a server or a host. The chip may be a BMC, a chip storing BIOS, etc. The type of the computing device and the type of the chip are not limited in the embodiments of the present application.

It should be noted that in other embodiments, BMC is referred to differently in different computing devices, for example BMC of server, super fusion server is iBMC, BMC of HPE server is iLO, and BMC of DELL server is idac.

Based on the method in the embodiment, the embodiment of the application also provides a chip. Referring to fig. 6, fig. 6 is a schematic structural diagram of a chip according to an embodiment of the present disclosure. As shown in fig. 6, chip 600 includes one or more processors 601 and interface circuits 602. Optionally, chip 600 may also include a bus 603. Wherein:

the processor 601 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 601. The processor 601 described above may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The methods, steps disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The interface circuit 602 may be used for sending or receiving data, instructions or information, the processor 601 may perform processing by using the data, instructions or other information received by the interface circuit 602, and may send out processing completion information through the interface circuit 602.

Optionally, chip 600 also includes memory, which may include read-only memory and random access memory, and provides operating instructions and data to the processor. The portion of memory may also include non-volatile random access memory (NVRAM).

Optionally, the memory stores executable software modules or data structures, and the processor may perform corresponding operations by calling the operation instructions stored in the memory (the operation instructions may be stored in an operating system).

Optionally, the interface circuit 602 may be configured to output the execution result of the processor 601.

It should be noted that the functions corresponding to the processor 601 and the interface circuit 602 may be implemented by hardware design, software design, or a combination of hardware and software, which is not limited herein.

It will be appreciated that the steps of the above-described method embodiments may be performed by logic circuits in the form of hardware or instructions in the form of software in a processor.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. In addition, in some possible implementation manners, each step in the above embodiments may be selectively executed according to an actual situation, may be partially executed, or may be completely executed, and is not limited herein.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in Random Access Memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable hard disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in or transmitted over a computer-readable storage medium. The computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application.

Claims (10)

1. A PCIE device scanning method is applied to a server, wherein the server comprises a BIOS and a BMC, and the method comprises the following steps:

in the starting process of the server, the BIOS sends a query instruction to the BMC, wherein the query instruction is used for indicating the BMC to acquire the state information of a target PCIE device;

the BMC responds to the query instruction, scans the adapter card connected with the server, and determines whether a target adapter card exists according to a scanning result;

under the condition that the target adapter card exists in the BMC scanning mode, the BMC acquires state information of a target PCIE device inserted into the target adapter card, wherein the state information is used for indicating whether the target PCIE device completes initialization or not;

the BMC sends the state information of the target PCIE equipment to the BIOS;

the BIOS determines whether to initiate PCIE device scanning based on the state information of the target PCIE device.

2. The method of claim 1, wherein before the BMC obtains status information of a target PCIE device inserted on the target riser card, the method further comprises:

the BMC acquires an identifier of a target PCIE device inserted into the target adapter card;

and under the condition of acquiring the identifier of the target PCIE equipment inserted into the target adapter card, the BMC acquires the state information of the target PCIE equipment inserted into the target adapter card.

3. The method of claim 2, further comprising:

and under the condition that the identification of the target PCIE equipment inserted into the target adapter card is not acquired, the BMC triggers the BIOS to start PCIE equipment scanning.

4. The method of claim 1, wherein the BMC scanning the adapter card connected to the server in response to the query instruction, and determining whether a target adapter card exists according to a scanning result comprises:

the BMC scans the adapter card connected with the server to acquire the identifier of the adapter card connected with the server;

the BMC matches the obtained identification of the adapter card with the identification of the adapter card stored in the BMC;

and if the matching is successful, the BMC determines that the server is connected with a target adapter card.

5. The method of claim 1, wherein the determining, by the BIOS, whether to initiate a PCIE device scan based on the status information of the target PCIE device comprises:

if the BIOS determines that the target PCIE equipment is initialized, the BIOS starts the PCIE equipment to scan;

if the BIOS determines that the target PCIE equipment is not initialized completely, the BIOS acquires the state information of the target PCIE equipment after a preset time interval, and determines whether to start the PCIE equipment for scanning or not according to the state information of the PCIE equipment.

6. The method according to any one of claims 1-5, further comprising:

and under the condition that the target adapter card exists in the BMC scanning mode, if the state information of the target PCIE equipment inserted into the target adapter card is not acquired within a first time threshold value, the BIOS starts the PCIE equipment scanning mode.

7. The method of claim 1, further comprising:

and under the condition that the BMC does not scan the target adapter card, triggering the BIOS to start PCIE to scan by the BMC.

8. The method of any of claims 1 to 7, wherein the obtaining, by the BMC, the state information of the target PCIE device plugged in the target riser card includes:

the BMC acquires the initialization state of the target PCIE equipment by acquiring information stored in any one of a general input/output port, a complex programmable logic device and a register on the target PCIE equipment.

9. The method of any of claims 1-8, wherein the target PCIE device is connected to the server through a high speed cable.

10. A server, comprising: the BIOS and the BMC,

the BIOS is used for sending a query instruction to the BMC in the starting process of the server, wherein the query instruction is used for indicating the BMC to acquire the state information of the target PCIE equipment;

the BMC responds to the query instruction, scans the adapter card connected with the server, and determines whether a target adapter card exists according to a scanning result; under the condition that the target adapter card exists in the BMC scanning mode, the BMC acquires state information of a target PCIE device inserted into the target adapter card, wherein the state information is used for indicating whether the target PCIE device completes initialization or not;

the BMC is further configured to send the state information of the target PCIE device to the BIOS;

the BIOS is further configured to determine whether to start scanning of the PCIE device according to the state information of the target PCIE device.

Images