CN114443404A - Board card, system and method for OCP interface test - Google Patents

Abstract

The invention relates to the field of OCP interface testing, and specifically discloses a board card for OCP interface testing, a testing system and a testing method. The board card is provided with an OCP golden finger interface for plugging in an OCP interface on a test terminal and an OCP gold finger interface for connecting a PCIe device There are several links corresponding to each link of the OCP cheat interface on the PCIe interface, and each link of the OCP cheat interface is respectively connected with the corresponding link on the PCIe interface. The invention can effectively reduce the use of high-value OCP network cards and optical fiber cables in actual production, thereby reducing the test loss and greatly reducing the test cost.

Description

A kind of OCP interface test board, test system and test method

technical field

The invention relates to the field of OCP interface testing, in particular to a board card for OCP interface testing, a testing system and a testing method.

Background technique

The server/PC (Personal Computer) motherboard has an OCP (Open Computing Project) interface. During the test, the OCP network card is generally used for diagnostic testing, and the OCP network card is of high value, and additional optical fibers are required for testing. Cables and other connections are tested. As high-value consumables, fiber-optic cables are easily damaged after multiple insertion and removal of gold fingers during testing, so a large amount of fiber-optic cables needs to be consumed during testing, and the loss of OCP cards also needs to be frequent. After a certain number of times of plugging and unplugging, the OCP card will also be damaged due to the wear and tear of the gold finger, resulting in a high cost of testing the OCP interface.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides an OCP interface test board, a test system and a test method. The PCIe link part of the OCP cheat interface link is designed and drawn, and converted into a standard PCIe interface and SAS. Interface, use other low-cost PCIe devices or SAS hard disks to test the OCP interface, and at the same time do not need to use fiber optic cables, avoid fiber optic cable losses, and greatly reduce test costs.

In the first aspect, the technical solution of the present invention provides an OCP interface test board, the board is provided with an OCP golden finger interface for plugging the OCP interface on the test terminal and a PCIe interface for accessing a PCIe device. The interface has several links corresponding to each link of the OCP cheat interface, and each link of the OCP cheat interface is respectively connected to the corresponding link on the PCIe interface.

Further, each link of the OCP cheat interface is respectively connected to the corresponding link on the PCIe interface, specifically:

The power link, data link, clock link, wake-up signal/presence detection signal link and I2C signal link of the OCP cheat interface are respectively the power link, differential data link, clock link, wake-up link of the PCIe interface Signal/Presence Detect signal link and I2C signal link connection.

Further, the data link of the OCP cheat interface is PCIe X16 signal, and there are 16 pairs of differential signal links. The corresponding connection between the data link of the OCP cheat interface and the differential data link of the PCIe interface is OCP_RX[N] to PCIe_RX [N], OCP_TX[N] is connected to PCIe_TX[N], where N is 0~15.

Further, the board is also provided with a SAS hard disk interface for accessing the SAS hard disk, and the SAS hard disk interface has several links corresponding to each link of the PCIe interface, and each link of the PCIe interface is respectively connected with the SAS hard disk interface. the corresponding link connection.

Further, each link of the PCIe interface is respectively connected to the corresponding link on the SAS hard disk interface, specifically:

The power link, differential data link, clock link, wake-up signal/presence detection signal link and I2C signal link of the PCIe interface are respectively the power link, differential data link, clock link, wake-up link of the SAS hard disk interface Signal link and I2C signal link connection.

Further, the differential data link of the PCIe interface has 4 pairs of differential signals connected to the differential data link of the SAS hard disk interface, and the corresponding connection method is PCIe_RX[M] to SAS_RX[M], PCIe_TX[M] to SAS_TX[M], The value of M is 0~3.

Further, a power module is also set on the board;

The power link of the OCP golden finger interface and the PCIe interface is a 12V power link. The power link of the SAS hard disk interface includes a 12V power link and a 3.3V/5V power link. The 12V power link of the PCIe interface and the SAS hard disk interface 12V power link connection;

The power module is connected to the 12 power link of the PCIe interface. The OCP golden finger interface provides 12V power for the power module, PCIe interface and SAS hard disk interface. At the same time, the power module is also connected to the 3.3V/5V power link of the SAS hard disk interface. The power module converts the 12V power supply to 3.3V and 5V power supply to provide 3.3V and 5V power supply for the SAS hard disk interface.

Further, the SAS hard disk interface is also provided with a read-write signal link, and the read-write signal link is connected with an LED indicator light.

In the second aspect, the technical solution of the present invention provides an OCP interface test system, including a test terminal with an OCP interface, a test device, and the test board described in any of the above; wherein the test device is a PCIe device or a SAS hard disk;

The OCP gold finger interface on the test board is plugged with the OCP interface on the test terminal;

When only the PCIe interface is set on the test board, the PCIe device is plugged into the PCIe interface;

When the PCIe interface and the SAS hard disk interface are simultaneously set on the test board, the PCIe device and the SAS hard disk are selected to be plugged into the corresponding interface;

The test terminal operates the test equipment. If the test equipment is normal, it is judged that the OCP interface on the test terminal is normal.

A third aspect, the technical scheme of the present invention provides a kind of OCP interface testing method, comprises the following steps:

Plug the OCP interface on the OCP golden finger interface test terminal of the test board described in any one of the above;

When only the PCIe interface is set on the test board, the PCIe device is plugged into the PCIe interface;

When the PCIe interface and the SAS hard disk interface are simultaneously set on the test board, the PCIe device and the SAS hard disk are selected to be plugged into the corresponding interface;

The test terminal operates the test device. If the test device is normal, it is judged that the OCP interface on the test terminal is normal; the test device refers to a PCIe device or a SAS hard disk.

The OCP interface test board, test system and test method provided by the present invention have the following beneficial effects compared to the prior art: the design of the PCIe link part in the OCP cheat interface link composition is drawn out, and converted into For the standard PCIe interface or SAS interface, other low-cost PCIe devices or SAS hard drives are used to test the OCP interface, which can effectively reduce the use of high-value OCP network cards and fiber optic cables in actual production, thereby reducing test losses. Greatly reduce testing costs.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application or the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only For some embodiments of the present application, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a board card for OCP interface testing provided by an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a board card for OCP interface testing provided by an embodiment of the present invention.

FIG. 3 is a schematic block diagram of the structure of an OCP interface testing system provided by an embodiment of the present invention.

Detailed ways

In order to make those skilled in the art better understand the solution of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The OCP interface mainly includes the data interaction part of the OCP network card, and its link is composed of the PCIe protocol, and also supports the NCSI function. In the extended test, the PCIe part is often tested. SAS hard disk interface, by connecting to other low-value PCIe devices, or using SAS hard disks for testing, to replace the traditional use of OCP network cards for actual testing to save testing costs.

As shown in FIG. 1, an embodiment of the present invention provides a board card for OCP interface testing. The board card is provided with an OCP gold finger interface and a PCIe interface, wherein the OCP gold finger interface is used to plug an OCP interface on a test terminal to realize The connection and communication with the test terminal, the PCIe interface is used to access PCIe devices, and there are several links on the PCIe interface corresponding to each link of the OCP cheat interface. Corresponding link connection. During the test, the test terminal operates the PCIe device. If the PCIe device is normal, the OCP interface on the test terminal is normal.

The links of the OCP cheat interface mainly include power link, data link, clock link, wake-up signal/in-position detection signal link and I2C signal link. The links of the corresponding PCIe interface include power link, differential data link, clock link, wake-up signal/presence detection signal link and I2C signal link. The power link, data link, clock link, wake-up signal/presence detection signal link and I2C signal link of the OCP cheat interface are respectively the power link, differential data link, clock link, wake-up link of the PCIe interface Signal/Presence Detect signal link and I2C signal link connection.

The data link of the OCP cheat interface is PCIe X16 signal, and there are 16 pairs of differential signal links. The corresponding connection between the data link of the OCP golden finger interface and the differential data link of the PCIe interface is OCP_RX[N] to PCIe_RX[N] , OCP_TX[N] is connected to PCIe_TX[N], where N is 0~15.

As shown in FIG. 2 , an embodiment of the present invention provides a board card for testing an OCP interface. In addition to a PCIe interface, a SAS hard disk interface for connecting to a SAS hard disk is also provided on the board card. Choose a PCIe device or a SAS hard drive as the test device.

Correspondingly, the SAS hard disk interface has several links corresponding to each link of the PCIe interface, and each link of the PCIe interface is respectively connected to a corresponding link on the SAS hard disk interface.

The links of the SAS hard disk interface also include power links, differential data links, clock links, wake-up signal links and I2C signal links. The power link, differential data link, clock link, wake-up signal/presence detection signal link and I2C signal link of the PCIe interface are respectively the power link, differential data link, clock link, wake-up link of the SAS hard disk interface Signal link and I2C signal link connection.

It should be noted that the differential data link of the PCIe interface has 4 pairs of differential signals connected to the differential data link of the SAS hard disk interface. The corresponding connection method is PCIe_RX[M] to SAS_RX[M], PCIe_TX[M] to SAS_TX[M] ], where M ranges from 0 to 3.

It should be noted that the board is also equipped with a power supply module. The power links of the OCP gold finger interface and PCIe interface are 12V power links, and the power links of the SAS interface include 12V power links and 3.3V/5V power links. , the 12V power link of the PCIe interface is connected to the 12V power link of the SAS hard disk interface. The power module is connected to the 12 power link of the PCIe interface, and the OCP golden finger interface provides 12V power for the power module, PCIe interface and SAS hard disk interface. At the same time, the power module is also connected to the 3.3V/5V power link of the SAS hard disk interface. The power module converts the 12V power supply into 3.3V and 5V power supply to provide 3.3V and 5V power for the SAS hard disk interface.

The SAS hard disk interface is also provided with a read-write signal link, and the read-write signal link is connected with an LED indicator.

Each interface link of the present invention will be further described below.

1) OCP gold finger interface 12V power supply link: it shares the power supply link with PCIe interface and SAS interface, and supplies power to the power supply module. After the power supply module is converted into 5V and 3.3V power supply, it supplies power to the SAS interface, as a SAS device. provide the required power supply;

2) OCP cheat interface data link: it is the differential link of PCIe protocol, which directly corresponds to the differential data link connected to the PCIe interface. The entire link is PCIe X16 signal, with a total of 16 pairs of differential signals, corresponding to the connection method Connect OCP_RX[N] to PCIe_RX[N], OCP_TX[N] to PCIe_TX[N] (N range is 0~15). In the link, the PCIe X4 link is 4 pairs of differential signals connected to the SAS interface. The corresponding connection method is OCP_RX[M] to SAS_RX[M], OCP_TX[M] to SAS_TX[M] (M range is 0~4) . During the test, only one of the PCIe device and the SAS device can be connected.

3) OCP gold finger interface 100M clock signal: OCP gold finger interface has a total of 4 groups of 100M clock signals, select the first 100M clock signal as the clock source of the entire fixture, which directly provides 100M clock for PCIe interface and SAS interface;

4) OCP cheat interface WAKE (wake up), in-position detection signal: its signal is connected to the PCIe interface correspondingly, providing WAKE and corresponding in-position detection, SAS interface does not need the in-position signal of the OCP cheat interface, only needs to share WAKE signal is enough.

5) OCP cheat interface I2C signal: The main board accesses the information of the connected device through the I2C interface, and this link is shared with the PCIe interface and the SAS interface.

6) SAS interface read and write signal: When the signal is connected to the hard disk, the hard disk read and write will continuously send pulses to the signal. This design is connected to the LED indicator, and the read and write status of the connected hard disk is displayed through the LED.

As shown in FIG. 3 , an embodiment of the present invention provides an OCP interface test system, the system includes a test terminal with an OCP interface, a test device, and a test board according to any of the above embodiments, wherein the test device is a PCIe device or SAS hard drives.

The OCP gold finger interface on the test board is connected with the OCP interface on the test terminal. When only the PCIe interface is set on the test board, connect the PCIe device to the PCIe interface. When both the PCIe interface and the SAS hard disk interface are set on the test board, select one of the PCIe device and the SAS hard disk to connect to the corresponding interface, that is, in a test, only one of the PCIe device and the SAS device can be connected. When the PCIe device is selected, plug the PCIe device into the PCIe interface, and when the SAS hard disk is selected, plug the SAS hard disk into the SAS interface.

The test terminal operates the test equipment. If the test equipment is normal, it is judged that the OCP interface on the test terminal is normal.

The OCP interface test system of this embodiment is implemented based on the aforementioned OCP interface test board. Therefore, the specific implementation of the system can be found in the embodiment section of the OCP interface test board above. Therefore, its specific implementation can refer to The descriptions of the corresponding parts of the embodiments are not described herein again.

In addition, since the OCP interface test system of this embodiment is implemented based on the aforementioned OCP interface test board, its function corresponds to the function of the above-mentioned board, and details are not repeated here.

An embodiment of the present invention provides an OCP interface testing method, which includes the following steps.

S101, inserting the OCP interface on the OCP golden finger interface test terminal of the test board of any of the above-mentioned embodiments;

S102, when only the PCIe interface is set on the test board, plug the PCIe device with the PCIe interface; when the test board is set with both the PCIe interface and the SAS hard disk interface, select one of the PCIe device and the SAS hard disk to plug in correspondingly interface.

S103, the test terminal operates the test device, and if the test device is normal, it is judged that the OCP interface on the test terminal is normal; the test device refers to a PCIe device or a SAS hard disk.

For example, select a PCIe graphics card as the test device, plug the PCIe graphics card into the PCIe interface, and operate the graphics card normally when the test terminal (server or PC) is powered on. If the graphics card test is normal, the OCP interface on the test terminal is considered normal. If the PCIe device is replaced with a SAS device, the operation is similar.

The OCP interface test method of this embodiment is implemented based on the aforementioned OCP interface test board, so the specific implementation of this method can be found in the embodiment section of the OCP interface test board above, so the specific implementation can refer to The descriptions of the corresponding parts of the embodiments are not described herein again.

In addition, since the OCP interface testing method in this embodiment is implemented based on the aforementioned OCP interface testing board, its function corresponds to that of the aforementioned board, and details are not repeated here.

The above disclosure is only the preferred embodiment of the present invention, but the present invention is not limited thereto, any non-creative changes that can be conceived by those skilled in the art, and some improvements and modifications made without departing from the principles of the present invention , should fall within the protection scope of the present invention.

Claims (10)

1. The board card for the OCP interface test is characterized in that an OCP golden finger interface used for being connected with an OCP interface on a test terminal in an inserting mode and a PCIe interface used for being connected with PCIe equipment are arranged on the board card, a plurality of links corresponding to all links of the OCP golden finger interface are arranged on the PCIe interface, and all links of the OCP golden finger interface are connected with corresponding links on the PCIe interface respectively.

2. The board card for testing the OCP interface according to claim 1, wherein each link of the OCP golden finger interface is connected to a corresponding link on the PCIe interface, specifically:

the power link, the data link, the clock link, the wake-up signal/in-place detection signal link and the I2C signal link of the OCP golden finger interface are respectively connected with the power link, the differential data link, the clock link, the wake-up signal/in-place detection signal link and the I2C signal link of the PCIe interface.

3. The board card for OCP interface test according to claim 2, wherein the data link of the OCP golden finger interface is PCIe X16 signal, there are 16 pairs of differential signal links, the data link of the OCP golden finger interface and the differential data link of the PCIe interface are connected in correspondence of OCP _ RX [ N ] to PCIe _ RX [ N ], OCP _ TX [ N ] to PCIe TX [ N ], and N is 0-15.

4. The board card for testing the OCP interface according to claim 3, wherein the board card is further provided with an SAS hard disk interface for accessing the SAS hard disk, the SAS hard disk interface is provided with a plurality of links corresponding to the links of the PCIe interface, and the links of the PCIe interface are respectively connected with the corresponding links of the SAS hard disk interface.

5. The board card for testing an OCP interface according to claim 4, wherein each link of the PCIe interface is connected to a corresponding link on the SAS hard disk interface, specifically:

the power link, the differential data link, the clock link, the wake-up signal/in-place detection signal link and the I2C signal link of the PCIe interface are respectively connected with the power link, the differential data link, the clock link, the wake-up signal link and the I2C signal link of the SAS hard disk interface.

6. The board card for testing the OCP interface according to claim 5, wherein the differential data link of the PCIe interface comprises 4 pairs of differential data links for accessing differential signals into the SAS hard disk interface, and the corresponding connection method is PCIe-RX [ M ] to SAS-RX [ M ], PCIe-TX [ M ] to SAS-TX [ M ], wherein the value of M is 0-3.

7. The board card for testing the OCP interface according to claim 6, wherein a power module is further disposed on the board card;

the power supply links of the OCP golden finger interface and the PCIe interface are 12V power supply links, the power supply link of the SAS hard disk interface comprises a 12V power supply link and a 3.3V/5V power supply link, and the 12V power supply link of the PCIe interface is connected with the 12V power supply link of the SAS hard disk interface;

the power module is connected with a 12 power supply link of the PCIe interface, an OCP golden finger interface provides 12V power supply for the power module, the PCIe interface and the SAS hard disk interface, meanwhile, the power module is also connected with a 3.3V/5V power supply link of the SAS hard disk interface, and the power module converts the 12V power supply into 3.3V and 5V power supply to provide 3.3V and 5V power supply for the SAS hard disk interface.

8. The board card for testing the OCP interface according to claim 7, wherein a read/write signal link is further arranged on the SAS hard disk interface, and the read/write signal link is connected with an LED indicator light.

9. An OCP interface test system, which is characterized by comprising a test terminal with an OCP interface, test equipment and a test board card as claimed in any one of claims 1 to 8; the test equipment is PCIe equipment or SAS hard disk;

the OCP golden finger interface on the test board card is plugged with the OCP interface on the test terminal;

when only a PCIe interface is arranged on the test board card, the PCIe equipment is plugged with the PCIe interface;

when the PCIe interface and the SAS hard disk interface are simultaneously arranged on the board card for testing, one of the PCIe equipment and the SAS hard disk is connected with a corresponding interface in an inserting mode;

and the test terminal operates the test equipment, and if the test equipment is normal, the OCP interface on the test terminal is judged to be normal.

10. An OCP interface test method is characterized by comprising the following steps:

plugging an OCP interface on an OCP golden finger interface test terminal of the test board card of any one of claims 1-8;

when only a PCIe interface is arranged on the test board card, the PCIe equipment is plugged with the PCIe interface;

when the PCIe interface and the SAS hard disk interface are simultaneously arranged on the board card for testing, one of the PCIe equipment and the SAS hard disk is plugged with a corresponding interface;

the test terminal operates the test equipment, and if the test equipment is normal, the OCP interface on the test terminal is judged to be normal; wherein the test device refers to PCIe device or SAS hard disk.

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