CN211506475U - Connecting device of OCP network card mutil-host - Google Patents

Abstract

The utility model discloses a connection device for an OCP network card mutil-host, comprising an OCP network card, the device further comprises an OCP adapter board, and the OCP adapter board is provided with an OCP network card connector and a plurality of OCP adapter board ends Slimline connector, the OCP network card is connected to the OCP network card connector through golden fingers, and each slimline connector of the OCP adapter board is connected to a host end. The utility model adopts the OCP adapter board, and the OCP adapter board is respectively provided with an OCP network card connector and a plurality of slimline connectors at the end of the OCP adapter board, which are used for connecting the OCP network card and the main board respectively, and realizes the connection mode of mutil-host, Increased configuration flexibility for OCP NICs. At the same time, a pull-up and pull-down resistor is set, which realizes the bandwidth configuration of different components on the main board and expands the application range of the device.

Description

A connection device for OCP network card mutil-host

technical field

The utility model relates to the technical field of server hardware architecture, in particular to a connection device of an OCP network card mutil-host.

Background technique

With the development of cloud computing applications, informatization has gradually covered all areas of society, and the requirements for server performance and application flexibility are also increasing. For servers, network technology is the most basic technology of servers. With the development of modern processor technology, network technology is constantly updated and developed.

OCP is the abbreviation of Open Compute Project (Open Computing Project), which was initiated by Facebook in April 2011 with Intel, Rackspace, Arista and Goldman Sachs. OCP NIC 3.0 is the latest specification released by the OCP organization for network cards.

At present, for the application on the server, OCP only has the application mode of the single-host single architecture. As shown in Figure 1, an OCP network card is connected to a single CPU on the MB (main board, motherboard) through a gold finger. Because the single-host application method is relatively simple and fixed, its application is relatively common at present. However, the single-host application method is relatively simple and fixed in terms of PCB wiring, mechanism or hardware, and cannot be implemented. Flexible configuration.

Utility model content

The embodiment of the present utility model provides a connection device of an OCP network card mutil-host, so as to solve the problem in the prior art that one OCP network card can only be matched with one host, and the configuration flexibility is poor.

In order to solve the above-mentioned technical problems, the embodiment of the present utility model discloses the following technical solutions:

The utility model provides a connection device for an OCP network card mutil-host, comprising an OCP network card, the device further comprises an OCP adapter board, and the OCP adapter board is provided with an OCP network card connector and a plurality of OCP adapter board ends Slimline connector, the OCP network card is connected to the OCP network card connector through golden fingers, and each slimline connector of the OCP adapter board is connected to a host end.

Further, the OCP adapter board is provided with two slimline X8 connectors on the OCP adapter board end, and each of the slimline X8 connectors on the OCP adapter board end is connected to a slimline X8 connector on the host side through a cable.

Further, the host-side mainboard includes a BMC, the OCP adapter board-side slimline connector is connected to the mainboard-side slimline connector, and the mainboard-side slimline connector is connected to the BIF pins on the BMC.

Further, the BIF pins and the slimline connector on the main board are respectively connected to the first pull-down resistors.

Further, the host-side motherboard includes a PCH, the OCP adapter board-side slimline connector is connected to the motherboard-side slimline connector, the OCP adapter board also includes pull-up resistors, and the pull-up resistors are respectively connected to the OCP network card connection. Adapter and OCP Adapter Board end slimline connectors.

Further, the OCP adapter board further includes a second pull-down resistor, and the second pull-down resistor is respectively connected to the OCP network card connector and the slimline connector of the OCP adapter board.

Further, the slimline connector on the main board side is also connected to the power supply signal, the NCSI signal and the sideband signal, respectively.

The effects provided in the content of the utility model are only the effects of the embodiments, not all the effects of the utility model. One of the above-mentioned technical solutions has the following advantages or beneficial effects:

Through the OCP adapter board, an OCP network card connector and a number of slimline connectors at the end of the OCP adapter board are respectively set on the OCP adapter board to connect the OCP network card and the main board respectively. The connection mode of mutil-host is realized, and OCP is added. NIC configuration flexibility. At the same time, a pull-up and pull-down resistor is set, which realizes the bandwidth configuration of different components on the main board and expands the application range of the device.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. It is obvious to those skilled in the art that In other words, on the premise of no creative work, other drawings can also be obtained based on these drawings.

Fig. 1 is the connection structure schematic diagram of prior art OCP network card and MB;

Fig. 2 is the structural representation of the device of the present invention;

Figure 3 is a schematic diagram of the BMC bandwidth configuration wiring on the motherboard side;

FIG. 4 is a schematic diagram of the PCH bandwidth configuration wiring on the motherboard side.

Detailed ways

In order to clearly illustrate the technical characteristics of the present solution, the present utility model will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present disclosure may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted from the present invention to avoid unnecessarily limiting the present invention.

As shown in Figure 2, the connection device of the OCP network card mutil-host of the present utility model includes an OCP network card and an OCP adapter plate, and the OCP adapter plate is provided with an OCP network card connector and a number of OCP adapter plate end slimline connectors, The OCP network card is connected to the OCP network card connector through a gold finger, and each slimline connector of the OCP adapter board is connected to a host end.

The OCP adapter board is provided with two slimline X8 connectors on the OCP adapter board end, and each slimline X8 connector on the OCP adapter board end is connected to a slimline X8 connector on the host side through a cable. An OCP3.0 network card can be connected to different hosts at the same time, that is, under the CPU. As above, an X16 OCP network card can connect the first 8-bit PCIE signals to CPU0 through an X8 slimline, and connect the last 8-bit PCIE signals to CPU1 through another X8 slimline, so as to achieve flexible configuration requirements .

To realize the function of mutil-host, it is also necessary to configure the OCP bandwidth. In the OCP3.0 protocol, the bandwidth is configured through the three PINs Bifurcation[0:2]. For the Bifurcation PIN, the protocol requires it to be in the STBY state. can be configured below. Then there are two ways to configure the bandwidth of mutil-host through Bifurcation:

As shown in FIG. 3 , when the host-side motherboard is a BMC, the slimline connector on the OCP adapter board is connected to the slimline connector on the motherboard, and the slimline connector on the motherboard is connected to the BIF (Bifurcation) pin on the BMC. The BIF pin and the slimline connector on the main board are respectively connected to the first pull-down resistor. The Bifurcation PIN is connected to the BMC of the motherboard, configured by the BMC, and the pull-down configuration resistor is connected to the motherboard to give it an initial state. Because Bifurcation can only be configured under STBY, the bandwidth configuration can be performed before connecting to the BMC before powering on.

As shown in FIG. 4 , when the host-side motherboard is a PCH, the slimline connector on the OCP adapter board is connected to the slimline connector on the motherboard. The OCP adapter board also includes pull-up resistors, and the pull-up resistors are respectively connected to the OCP NIC connector and slimline connector on the OCP riser board side. The OCP adapter board further includes a second pull-down resistor, and the second pull-down resistor is respectively connected to the OCP network card connector and the slimline connector of the OCP adapter board. Because Bifurcation can only be configured under STBY, and PCH can only work after booting, so PCH cannot configure OCP bandwidth through BIF under STBY. Therefore, only the pull-up and pull-down resistors configured on the BIF hardware can be connected to the OCP riser card. On, the bandwidth is configured by the forced pull-up and pull-down resistors on the hardware.

The slimline connector on the motherboard side is also connected to the power supply POWER signal, NCSI signal and sideband OTHER signal respectively.

The above are only the preferred embodiments of the present invention. For those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as This is the scope of protection of the utility model.

Claims (7)

1. a connection device of OCP network card mutil-host, comprises OCP network card, it is characterized in that, described device also comprises OCP adapter plate, described OCP adapter plate is provided with OCP network card connector and some OCP adapter plates The end slimline connector, the OCP network card is connected to the OCP network card connector through a gold finger, and each slimline connector of the OCP adapter board is connected to a host end. 2. the connection device of OCP network card mutil-host according to claim 1, is characterized in that, described OCP adapter plate is provided with two OCP adapter plate end slimline X8 connectors, each described OCP adapter The board-side slimline X8 connector is connected to a slimline X8 connector on the host side through a cable. 3. the connection device of OCP network card mutil-host according to claim 1, is characterized in that, on described host end mainboard, comprises BMC, OCP adapter board end slimline connector connects mainboard end slimline connector, described mainboard end The slimline connector connects to the BIF pins on the BMC. 4 . The connection device of the OCP network card mutil-host according to claim 3 , wherein the BIF pins and the motherboard side slimline connector are respectively connected to the first pull-down resistors. 5 . 5. the connection device of OCP network card mutil-host according to claim 1, is characterized in that, comprises PCH on described host end mainboard, OCP adapter board end slimline connector connects mainboard end slimline connector, and described OCP transfers The connection board also includes pull-up resistors, and the pull-up resistors are respectively connected to the OCP network card connector and the slimline connector at the end of the OCP adapter board. 6. The connection device of the OCP network card mutil-host according to claim 5, wherein the OCP adapter plate further comprises a second pull-down resistor, and the second pull-down resistor is respectively connected to the OCP network card connector and the OCP Adapter board end slimline connector. 7. The connection device of the OCP network card mutil-host according to any one of claims 3-6, wherein the main board side slimline connector is also connected to a power supply signal, an NCSI signal and a sideband signal, respectively.

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