OCP adapter plate supporting hot plug

Abstract

The utility model discloses an OCP adapter plate supporting hot plug, which is electrically connected with a main board, the OCP adapter plate supporting hot plug comprises an OCP connector, a hot plug control circuit and an OCP network card, and the main board is provided with a CPU and a CPLD chip; the hot plug control circuit, the OCP connector and the OCP network card are electrically connected in sequence, the hot plug control circuit is further connected with the power supply, the OCP connector, the CPU and the CPLD chip are electrically connected in sequence, and the CPLD chip is electrically connected with the hot plug control circuit. The OCP adapter plate supporting hot plugging is independent of the mainboard, space and resources on the mainboard are saved, through the mainboard, the hot plugging control circuit and the OCP connector, the OCP network card can be easily replaced under the condition of uninterruptible power supply, direct plugging can be achieved, application is flexible, device configuration, debugging and follow-up maintenance are facilitated, and therefore cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to OCP network card hot plug technical field, specifically related to a kind of OCP adapter board of supporting hot plug. BACKGROUND

[0002] The full name of OCP network card is Open Compute Project (OCP) network card. OCP (Open Compute Project) is an open-source hardware project initiated by Facebook, aiming to promote the openness and innovation of data center hardware. OCP network card is part of the project, mainly used to improve the network transmission performance and data processing capacity of servers.

[0003] OCP network card is usually connected to server mainboard through PCIe interface, and the hot plug of OCP network card is controlled through controller. The existing controller is generally applied to mainboard, and is not designed independently of mainboard, which increases the cost of mainboard, and PCIE slot must be provided on mainboard, which occupies the resources on mainboard. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems raised in the background art and proposes an OCP adapter board supporting hot plug.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] The utility model proposes an OCP adapter board supporting hot plug, which is electrically connected with mainboard. The OCP adapter board supporting hot plug includes OCP connector, hot plug control circuit and OCP network card, and CPU and CPLD chip are provided on the mainboard, wherein:

[0007] The hot plug control circuit, OCP connector and OCP network card are electrically connected in sequence, and the hot plug control circuit is further connected with power supply, and the OCP connector, CPU and CPLD chip are electrically connected in sequence, and the CPLD chip is electrically connected with hot plug control circuit.

[0008] Preferably, the OCP adapter board supporting hot plug further includes first connector, and the first connector is electrically connected with hot plug control circuit, OCP connector and CPLD chip respectively.

[0009] Preferably, the OCP adapter board supporting hot plug further includes second connector, and the second connector is electrically connected with OCP connector and CPU respectively.

[0010] Preferably, the hot plug control circuit comprises a control chip, a resistor R1 and a capacitor C1, the eighth pin and the thirty-third pin of the control chip are connected with a power supply, the tenth pin of the control chip is connected with one plate of the resistor R1 and the capacitor C1 respectively, the other end of the resistor R1 is connected with the power supply, the other plate of the capacitor C1 is connected with the ground, and the fifth pin and the thirtieth pin of the control chip are connected with the OCP connector.

[0011] Preferably, the hot plug control circuit further comprises a resistor R11, a resistor R15, a resistor R18 and a resistor R21, the fourth pin of the control chip is connected with one end of the resistor R21, the other end of the resistor R21 is connected with the first connector, the thirty-sixth pin of the control chip is connected with one end of the resistor R11, the other end of the resistor R11 is connected with the first connector, the thirty-fourth pin of the control chip is connected with one end of the resistor R15, the other end of the resistor R15 is connected with the first connector, the third pin of the control chip is connected with one end of the resistor R18, and the other end of the resistor R18 is connected with the first connector.

[0012] Preferably, the OCP connector is provided with an OCP slot, and the OCP network card is connected with the OCP connector through the OCP slot.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The OCP adapter plate supporting hot plug is independent of the mainboard, saves the space and resources on the mainboard, and through the mainboard, the hot plug control circuit and the OCP connector, the OCP network card can be replaced easily under the condition of uninterrupted power supply, can be directly plugged, is flexible in application, is convenient for device configuration, debugging and subsequent maintenance, and thus the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 The module block diagram of the OCP adapter plate supporting hot plug of the utility model;

[0016] Fig. 2 The schematic diagram of the hot plug control circuit of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the application more clear, the application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.

[0018] As shown in Figs. 1-2 An OCP adapter plate supporting hot plug is provided, which is electrically connected with a mainboard and comprises an OCP connector, a hot plug control circuit and an OCP network card, and the mainboard is provided with a CPU and a CPLD chip, wherein:

[0019] The hot plug control circuit, the OCP connector and the OCP network card are sequentially electrically connected, and the hot plug control circuit is further connected with a power supply, and the OCP connector, the CPU and the CPLD chip are sequentially electrically connected, and the CPLD chip is electrically connected with the hot plug control circuit.

[0020] The OCP connector is provided with an OCP slot, and the OCP network card is connected with the OCP connector through the OCP slot.

[0021] It should be noted that in the embodiment, the CPU adopts Feiteng S5000C, the CPLD chip adopts Ziguang PGC2K-MBG256, the OCP connector adopts SFF-TA-1002 4C+, and the hot plug control circuit inputs the connected power supply to the OCP connector to supply power for the OCP connector, and the CPU is connected with the OCP connector (specifically, the in-place signal (PRSNT# signal) of the CPU is connected to the OCP connector), so that the CPU detects whether the OCP slot is inserted with the OCP network card, when the OCP network card is hot-plugged to the OCP connector, the CPU sets the PRSNT# signal to low and sends it to the CPLD chip, that is, the CPLD chip is informed that the OCP network card is inserted, and then the CPLD chip enables the hot plug control circuit, so that the hot plug control circuit provides power for the OCP connector (that is, provides power for the OCP network card), in the embodiment, the power supply provides 12V and 3.3VSB voltage, and the hot plug control circuit also provides 12V and 3.3VSB power supply voltage for the OCP network card; at the same time, the CPLD sends a low-level PERST# reset signal to the OCP network card, and the CPU informs the mainboard of the signal detected by the OCP network card, and the system of the mainboard allocates resources for the OCP network card, and thus the hot plug operation is completed.

[0022] When the OCP network card performs hot pull operation, the CPU sets the PRSNT# signal to high and sends it to the CPLD chip, that is, the signal detected by the OCP network card is sent to the CPLD chip, and the CPLD chip makes the OCP connector power off (that is, the OCP network card is powered off) through the hot plug control circuit, and the CPU informs the mainboard of the signal detected by the OCP network card, and the system of the mainboard recovers the resource allocation for the OCP network card, and thus the hot pull operation is completed.

[0023] In one embodiment, the OCP adapter board supporting hot plug further comprises a first connector, the first connector is electrically connected with the hot plug control circuit, the OCP connector and the CPLD chip respectively; wherein the first connector is a SlimSAS connector, the CPLD chip controls the enable signal of the hot plug control circuit through the SlimSAS connector to power on and power off the OCP network card, and the CPLD chip sends a PERST# reset signal to the OCP network card through the SlimSAS connector.

[0024] In one embodiment, the OCP adapter supporting hot plug further comprises a second connector electrically connected with the OCP connector and the CPU respectively; wherein the second connector is an MCIO connector, and the in-place signal of the CPU is connected to the OCP connector through the MCIO connector, and the CPU provides the PCIE X16 signal for the OCP network card through the MCIO connector.

[0025] In one embodiment, the hot plug control circuit comprises a control chip, a resistor R1 and a capacitor C1, the eighth pin and the thirty-third pin of the control chip are both connected to a power supply (the eighth pin is connected to a 3.3VSB voltage, and the thirty-third pin is connected to a 12V voltage), and the tenth pin of the control chip is connected to one plate of the resistor R1 and the capacitor C1 respectively, the other end of the resistor R1 is connected to the power supply (connected to a 3.3VSB voltage), the other plate of the capacitor C1 is connected to the ground, and the fifth pin and the thirtieth pin of the control chip are both connected to the OCP connector (the fifth pin outputs a 3.3VSB voltage, and the thirtieth pin outputs a 12V voltage); the model of the control chip is LTC4242IG, and the control chip supplies power to the OCP connector from the connected power supply.

[0026] In one embodiment, the hot plug control circuit further comprises a resistor R11, a resistor R15, a resistor R18 and a resistor R21, the fourth pin of the control chip is connected to one end of the resistor R21, the other end of the resistor R21 is connected to the first connector, the thirty-sixth pin of the control chip is connected to one end of the resistor R11, and the other end of the resistor R11 is connected to the first connector, the thirty-fourth pin of the control chip is connected to one end of the resistor R15, and the other end of the resistor R15 is connected to the first connector, the third pin of the control chip is connected to one end of the resistor R18, and the other end of the resistor R18 is connected to the first connector; the control chip is connected to the first connector through the above pins, and the CPLD chip enables the EN signal (i.e. the first pin and the nineteenth pin) of the control chip through the first connector, so as to power on or power off the OCP network card.

[0027] As Fig. 2As shown, the first pin of the control chip is connected with one plate of capacitor C4 and one end of resistor R9, the other plate of capacitor C4 and the other end of resistor R9 are grounded, the nineteenth pin is connected with one end of resistor R10, and the other end of resistor R10 is connected with a power supply (3.3VSB voltage); the twelfth pin, the twenty-third pin, the eleventh pin, the thirteenth pin and the twenty-fourth pin of the control chip are connected with one end of resistor R2, resistor R3, resistor R4, resistor R5 and resistor R6 in sequence, and the other end of resistor R2, resistor R3, resistor R4, resistor R5 and resistor R6 is grounded; the sixth pin and the thirty-first pin of the control chip are connected with one end of resistor R7 and resistor R8 in sequence, and the other end of resistor R7 and resistor R8 is connected with one plate of capacitor C2 and capacitor C3 in sequence, and the other plate of capacitor C2 and capacitor C3 is grounded; the twentieth pin, the thirty-fifth pin, the twenty-first pin, the thirty-fourth pin and the twenty-second pin of the control chip are connected with one end of resistor R12, resistor R13, resistor R14, resistor R15 and resistor R16 in sequence, and the other end of resistor R12, resistor R13, resistor R14, resistor R15 and resistor R16 is connected with a power supply (3.3VSB voltage); the seventeenth pin, the third pin, the second pin and the eighteenth pin of the control chip are connected with one end of resistor R17, resistor R18, resistor R19 and resistor R20 in sequence, and the other end of resistor R17, resistor R18, resistor R19 and resistor R20 and the twenty-eighth pin are grounded, and the sixteenth pin of the control chip is connected with one end of resistor R22, and the other end of resistor R22 is grounded.

[0028] The OCP adapter board supporting hot plug is independent of the mainboard, saves space and resources on the mainboard, and through the mainboard, the hot plug control circuit and the OCP connector, the OCP network card can be easily replaced without power failure, can be directly plugged, is flexible in application, is convenient for device configuration, debugging and subsequent maintenance, and thus the cost is reduced.

[0029] The above-described embodiments only express several implementation manners of the application, the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. An OCP adapter board supporting hot plug, characterized in that: The OCP adapter supporting hot plug is electrically connected with the mainboard, and comprises an OCP connector, a hot plug control circuit and an OCP network card. The hot plug control circuit, the OCP connector and the OCP network card are electrically connected in sequence, and the hot plug control circuit is further connected with a power supply.

2. The OCP breakout board supporting hot plug of claim 1, wherein: The OCP adapter supporting hot plug further comprises a first connector electrically connected with the hot plug control circuit, the OCP connector and the CPLD chip respectively.

3. The OCP breakout board supporting hot plug of claim 1, wherein: The OCP adapter supporting hot plug further comprises a second connector electrically connected with the OCP connector and the CPU respectively.

4. The OCP breakout board supporting hot plug of claim 2, wherein: The hot plug control circuit comprises a control chip, a resistor R1 and a capacitor C1.

5. The OCP breakout board supporting hot plug of claim 4, wherein: The hot plug control circuit further comprises a resistor R11, a resistor R15, a resistor R18 and a resistor R21.

6. The OCP breakout board supporting hot plug of claim 1, wherein: The OCP connector is provided with an OCP slot, and the OCP network card is connected with the OCP connector through the OCP slot.

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