CN207833500U - A kind of 40G rate network interface cards for supporting non-standard interface - Google Patents

Abstract

The utility model discloses a 40G speed network card supporting a non-standard interface. The structure of the network card includes: a network card connector, a network chip, a power supply module VR, SPI Flash, EEPROM and a network interface, wherein: the network card passes through the network card connector It is interconnected with the motherboard; the network chip is powered by the power supply module VR, and performs basic chip configuration and information storage functions through SPI Flash and EEPROM. The utility model can be used in some specific application environments, especially when some server motherboards do not provide standard PCIE or OCP external network card interfaces. Otherwise, if the motherboard is greatly changed, it will take time and effort. Some unpredictable consequences may even occur; at the same time, the network communication rate of 40G can be realized, which further improves the data transmission capacity of this part of the server.

Description

A 40G rate network card that supports non-standard interfaces

technical field

The utility model relates to the technical field of communication, in particular to a 40G rate network card supporting non-standard interfaces.

Background technique

A network card is a network component that works at the link layer, and is an interface that connects computers and transmission media in a local area network. It can realize physical connection and electrical signal matching with the local area network medium. Currently, in the application of servers, the network card is a network data communication device, which can send and receive data processed by the motherboard through the network card, so as to interact with the external environment. On a common server motherboard, the network card usually uses a standard PCIE or OCP interface (Open Core Protocol open core protocol) to interconnect with the motherboard, and realizes high-speed data transmission and communication through the PCIE bus protocol, so as to meet the large data volume of server products. information communication. However, in some actual project development processes, or on some specific motherboards, there is no PCIE or OCP interface for external network cards. At this time, network cards with standard interfaces cannot be plugged into the motherboard. It is impossible to send or receive large amounts of data with the outside world.

In addition, in the server, the amount of data to be transmitted is very large, so there is also a high requirement for the transmission rate of the network card used in the server. At present, the data transmission rate of the network card of some servers is about 10G, which can no longer meet the data transmission requirements of the server. Therefore, the network card rate needs to be increased to fully meet the use requirements.

Utility model content

The technical problem to be solved by the utility model is: on some special server motherboards, if the standard PCIE or OCP interface is not supported when the external network card is connected, how to realize the use of non-standard high-speed interface to externally connect the expansion network card, and at the same time for some servers As far as the network card is concerned, improving the communication rate of the network card is also a technical problem that needs to be solved.

In view of the above problems, the utility model provides a 40G rate network card supporting non-standard interfaces.

The technical scheme adopted in the utility model is:

A 40G rate network card that supports non-standard interfaces, the structure of the network card includes: a network card connector, a network chip, a power supply module VR, SPI Flash, EEPROM and a network interface, wherein:

The network card is interconnected with the motherboard through the network card connector;

The network chip is powered by the power supply module VR, and performs basic chip configuration and information storage functions through SPI Flash and EEPROM.

The network card connector supports the PCIE bus protocol and integrates the management function of NCSI.

Among them: PCIE: Peripheral Component Interface Express bus and interface standard;

NCSI (Network Controller Sideband Interface), an industry standard defined by the Distributed Management Task Force (DMTF) for sideband interface network controllers that support server out-of-band management.

The network card connector is a high-speed connector supporting a non-standard interface, which satisfies the interface requirements of an external network card of a specific server while realizing the PCIE bus protocol.

For the design of non-standard interfaces, in terms of structural size, the size of the connector can be reduced, thereby saving area and facilitating PCB design. At the same time, in terms of cost, it also has certain advantages over traditional PCIE slots.

The 40G rate network card that supports non-standard interfaces is an IB network card, which can not only support 40G Ethernet communication, but also support 56G infiniband performance. Compared with ordinary network cards, it can support RDMA (Reduced Direct Memory Access) technology. Through this technology, the network delay can be effectively reduced, and the CPU load can be reduced at the same time.

IB network card, InfiniBand network card, InfiniBand architecture is a "transition cable" technology that supports multiple concurrent links, in this technology, each link can reach the operating speed of 2.5 Gbps. This architecture has a speed of 500 MB/s for one link, 2 GB/s for four links, and 6 GB/s for 12 links.

The SPI Flash is responsible for storing the basic configuration information of the network card including the firmware code, and loading and configuring the network chip and interface after the server is started. Among them, SPI: Serial PeripheralInterface serial peripheral interface.

The EEPROM (Electrically Erasable Programmable Read Only Memory) is responsible for storing basic usage information of the board, so as to facilitate reading by the board through I2C.

The network chip selects the ConnectX3 Pro chip, which supports 4 data transmission channels, and each transmission channel can meet the maximum transmission rate of 10G, so the chip can provide a maximum network communication rate of 40G, which can fully meet certain requirements. Some servers require external data transmission rates, and at the same time, the chip also has certain advantages in terms of cost.

The network interface adopts the network interface QSFP (Quad Small Form-factor Pluggable four-channel small pluggable interface) supporting 40G transmission rate, which makes it possible to realize the data transmission of this high-speed communication network card.

The beneficial effects of the utility model are:

The utility model can be used in some specific application environments, especially when some server motherboards do not provide standard PCIE or OCP external network card interfaces, the transmission of a large amount of data between the server and the outside world cannot be realized, and at this time it is necessary to choose Network cards with non-standard interfaces are supported, otherwise, if major changes are made to the motherboard, it will take time and effort, and even produce some unpredictable consequences; at the same time, for some servers, the network transmission rate of 1G/10G is far from enough Data transmission requirements, and this design scheme can achieve a network communication rate of 40G, which further improves the data transmission capacity of this part of the server.

Description of drawings

Fig. 1 is a block diagram of the utility model network card.

Detailed ways

According to the accompanying drawings of the description, the utility model is further described in conjunction with specific embodiments:

As shown in Figure 1, a kind of 40G rate network card that supports non-standard interface, the structure of described network card comprises: network card connector connector, network chip, power supply module VR, SPI Flash, EEPROM and network interface, wherein:

The network card is interconnected with the motherboard through the network card connector;

The network chip is powered by the power supply module VR, and performs basic chip configuration and information storage functions through SPI Flash and EEPROM.

The network card connector supports the PCIE bus protocol and integrates the management function of NCSI.

The network card connector is a high-speed connector supporting non-standard interfaces, and while implementing the PCIE bus protocol, it also meets the interface requirements of the external network card of a specific server.

The 40G rate network card supporting non-standard interfaces is an IB network card.

The SPI Flash is responsible for storing the basic configuration information of the network card including the firmware code, and loading and configuring the network chip and interface after the server is started.

The EEPROM is responsible for storing the basic usage information of the board, so as to facilitate the reading of the board through I2C.

The network chip selects the ConnectX3 Pro chip, which supports 4 data transmission channels, and each transmission channel can meet the maximum transmission rate of 10G, so the chip can provide a maximum network communication rate of 40G, which can fully meet certain requirements. Some servers require external data transmission rates, and at the same time, the chip also has certain advantages in terms of cost.

The network interface adopts a network interface QSFP supporting 40G transmission rate, which makes it possible to realize the data transmission of this high-speed communication network card.

The embodiments are only used to illustrate the utility model, rather than to limit the utility model. Those of ordinary skill in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the utility model. Therefore all equivalent technical solutions also belong to the category of the utility model, and the patent protection scope of the utility model should be defined by the claims.

Claims (7)

1. a kind of 40G rate network interface cards for supporting non-standard interface, which is characterized in that the structure of the network interface card includes：Network interface card connects Device, network chip, power supply module VR, SPI Flash, EEPROM and network interface, wherein：

Network interface card is responsible for interconnecting with mainboard by network interface card connector；

Network chip is powered by power supply module VR, and is carried out by SPI Flash and EEPROM basic Chip configures and information storage function；

The network chip chooses ConnectX3 Pro chips.

2. a kind of 40G rate network interface cards for supporting non-standard interface according to claim 1, which is characterized in that the network interface card Connector supports PCIE bus protocols, and is integrated with the management function of NCSI.

3. a kind of 40G rate network interface cards for supporting non-standard interface according to claim 1 or 2, which is characterized in that the net Card connector is that the high speed connector of non-standard interface is supported to meet particular server while realizing PCIE bus protocols The interface requirements of external network interface card.

4. a kind of 40G rate network interface cards for supporting non-standard interface according to claim 3, which is characterized in that the support The 40G rate network interface cards of non-standard interface are IB network interface cards.

5. a kind of 40G rate network interface cards for supporting non-standard interface according to claim 4, which is characterized in that the SPI Flash is responsible for storing the basic configuration information for including firmware code of network interface card, to network chip and interface after startup of server Carry out load configuration.

6. a kind of 40G rate network interface cards for supporting non-standard interface according to claim 5, which is characterized in that described EEPROM is responsible for storing the basic use information of board.

7. a kind of 40G rate network interface cards for supporting non-standard interface according to claim 6, the network interface is using support The network interface QSFP of 40G transmission rates.