CN114138354B - Multi-host supporting on-board OCP network card system and server - Google Patents
Multi-host supporting on-board OCP network card system and server Download PDFInfo
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- CN114138354B CN114138354B CN202111434334.6A CN202111434334A CN114138354B CN 114138354 B CN114138354 B CN 114138354B CN 202111434334 A CN202111434334 A CN 202111434334A CN 114138354 B CN114138354 B CN 114138354B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention provides an on-board OCP network card system and a server supporting multihosts, wherein the system comprises: OCP network card; a plurality of CPUs; a connection module; the connection module is respectively connected with the plurality of CPUs and the OCP network card and is configured to realize different data transmission modes of the plurality of CPUs and the OCP network card according to the number of the plurality of CPUs. By adding 2 sliding_x8 connectors on the main board, the PCB wiring is directly connected to the SFF4C+ connectors of the OCP interface, so that the configuration of the on-board OCP network card of the server can be realized. The CPU end sliding_x8 connector is flexibly spliced through the cable, so that a network card single host or multi-host mode can be realized. BIF ID adaptation can be achieved by exclusive OR gates. The flexible configuration of the uplink host of the on-board OCP network card can be effectively realized, and the single host or multi-host mode of the network card can be realized.
Description
Technical Field
The invention belongs to the field of computers, and particularly relates to an on-board OCP network card system supporting multiple host and a server.
Background
With the rapid development of internet technology, the demands of various internet companies for high-performance servers have been rapidly increased, and server network cards have been developed. The OCP (0 pen Compute Project, open computing project) network card adaptation server can be bundled and converged into a group through a plurality of ports, so that fault tolerance and redundancy backup are realized, network performance is guaranteed, and network bandwidth is expanded; the system has the advantages that the system is free of state unloading, can be distributed to the CPU core on network traffic, improves network throughput, can realize real-time self-detection and realize the routing of communication from a fault port to other members in the same group to continue running so as to realize uninterrupted high-performance communication, has excellent performance in a multiprocessor system, and is an ideal solution for deploying key network applications and environments on a plurality of networks and high-performance servers.
However, the OCP network card in the prior art cannot directly realize load balancing among multiple hosts (multiple CPUs), and needs to additionally develop a riser card, so that project manpower is consumed to lengthen the development period, and the riser card needs to depend on a fixed position of a structural member in the chassis, which affects the heat dissipation of the whole server to a certain extent.
Therefore, there is a need for an OCP network card supporting multiple hosts with improved efficiency and convenience.
Disclosure of Invention
In order to solve the above problems, the present invention provides an on-board OCP network card system supporting multihosts, comprising:
OCP network card;
a plurality of CPUs;
a connection module;
the connection module is respectively connected with the plurality of CPUs and the OCP network card and is configured to realize different data transmission modes of the plurality of CPUs and the OCP network card according to the number of the plurality of CPUs.
In some embodiments of the invention, the connection module comprises:
and the first connector is connected with the OCP network card and is configured to realize data transmission between the OCP network card and the plurality of CPUs.
In some embodiments of the invention, the connection module further comprises:
and the plurality of second connectors are connected with the first connector and are configured to realize data transmission between the plurality of CPUs and the first connector.
In some embodiments of the invention, the connection module further comprises:
and the third connectors are respectively connected with the second connectors and are configured to realize data transmission of the CPUs and the second connectors.
In some embodiments of the invention, the third connector is further configured to:
and transmitting the connected CPU information to the first connector through a predetermined line of the second connector.
In some embodiments of the invention, the system further comprises:
and connecting the preset lines of the plurality of second connectors to the preset pins of the first connector after passing through a logic exclusive-or gate.
In some embodiments of the invention, the first connector is further configured to:
and sending an instruction for setting a transmission mode to the OCP network card according to the potential change of the preset pin so as to change the working mode of the OCP network card.
In some embodiments of the invention, the first connector is an sff4c+ connector.
In some embodiments of the invention, the second connector and the third connector are slimline_x8 connectors.
The invention also provides a server, which comprises the multi-host supporting on-board OCP network card system disclosed in the embodiment.
By adding 2 sliding_x8 connectors on the main board, the PCB wiring is directly connected to the SFF4C+ connector of the OCP interface, so that the configuration of the on-board OCP network card of the server can be realized. The CPU end sliding_x8 connector is flexibly spliced through the cable, so that a network card single host or multi-host mode can be realized. BIF ID self-adaption can be realized through an exclusive OR gate so as to give the OCP network card correct configuration. Can effectively solve the following problems: and the flexible configuration of the uplink host of the on-board OCP network card is realized. The network card single host or multi host mode is realized. The problems of long development period, rising cost of manpower and material resources and the like caused by newly opening the board card are solved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an OCP network card system in the prior art;
fig. 2 is a schematic structural diagram of an OCP network card system in the prior art;
fig. 3 is a schematic structural diagram of an on-board OCP network card supporting multihosts according to an embodiment of the present invention;
fig. 4 is a schematic diagram comparing a partial structure diagram of an on-board OCP network card supporting multiple host with the prior art according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a server according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that, in the embodiments of the present invention, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present invention, and the following embodiments are not described one by one.
As shown in fig. 1, in the prior art, a general 2-way server is taken as an example to support an on-board OCP network card.
CPU0 or CPU1 is directly connected to SFF4C+ connector on the main board, BMC end can conduct network management through NCSI (Network Controller Sideband Interface, an industry standard of sideband interface network controller for supporting server out-of-band management defined by distributed management task force (Distributed Management Task Force, DMTF)), some sideband signals can implement logic such as time sequence control through CPLD (Complex Programmable Logic Device ) and pull-up and pull-down resistor, so that OCP network card can be directly inserted into on-board SFF4C+ connector to implement on-board network card.
As shown in fig. 2, the scheme is the mainstream at present, and by developing an OCP riser card, the OCP riser card is provided with 2 slimline x8 connectors, and CPU0 or CPU1 can be connected through 2 cables (which may be data lines or optical cables). For example, the simultaneous connection of cable 0 and cable 1 to the OCP riser card may implement the configuration of the OCP network card by CPU0, the connection of cable 2 and cable 3 to the OCP riser card may implement the configuration of the OCP network card by CPU1, or the connection of cable 0 and cable 2 to the OCP riser card may implement the configuration of the OCP network card by CPU0, so that the single host or multiple host mode may be implemented.
However, there are various problems in the above-mentioned scheme: the on-board network card can not realize load balancing, so that the overall performance of the server can not be further improved; and the OCP network card can only be fixedly connected with the CPU0 or the CPU1 and cannot be flexibly changed. Although the CPU load balancing can be realized, a riser card needs to be additionally developed, project manpower is consumed to lengthen the development period, and the riser card needs to depend on a fixed position of a structural member in the chassis, so that the heat dissipation of the whole machine is affected to a certain extent.
As shown in fig. 3, to solve the above problems, the present invention provides an on-board OCP network card system supporting multihosts, comprising:
OCP network card 1;
a plurality of CPUs 3;
a connection module 2;
the connection module 2 is respectively connected to the plurality of CPUs 3 and the OCP network card 1, and is configured to implement different data transmission modes of the plurality of CPUs 3 and the OCP network card 1 according to the number of the plurality of CPUs 3.
In some embodiments of the invention, the connection module 2 comprises:
and the first connector 4 is connected with the OCP network card and is configured to realize data transmission between the OCP network card and the plurality of CPUs.
The first connector 4 is directly connected with the OCP network card 1, and is used for realizing data transmission between the OCP network card 1 and a plurality of CPUs.
In some embodiments of the invention, the connection module 2 further comprises:
a plurality of second connectors 5, the plurality of second connectors 5 are connected with the first connector 4, and are configured to realize data transmission between the plurality of CPUs and the first connector.
In some embodiments of the invention, the connection module 2 further comprises:
a plurality of third connectors 6, wherein the third connectors 6 are grouped in a predetermined number and correspondingly connected with the CPUs in a grouping manner, and the third connectors 6 are respectively connected with the plurality of second connectors 5 and are configured to realize data transmission between the plurality of CPUs 3 and the plurality of second connectors 5.
In the present embodiment, as shown in fig. 3, the third connectors 6 are connected to one CPU in groups of every two, and each group of the third connectors 6 is connected to a different second connector 5, respectively, to realize connection of each CPU with the second connector.
In some embodiments of the invention, the third connector 6 is further configured to:
and transmitting the connected CPU information to the first connector through a predetermined line of the second connector.
In some embodiments of the invention, the system further comprises:
the predetermined lines of the plurality of second connectors 5 are connected to the predetermined pins of the first connector 4 after passing through a logic exclusive or gate.
In some embodiments of the invention, the first connector 4 is further configured to:
and sending an instruction for setting a transmission mode to the OCP network card according to the potential change of the preset pin so as to change the working mode of the OCP network card.
In some embodiments of the invention, the first connector is an sff4c+ connector.
In some embodiments of the invention, the second connector and the third connector are slimline_x8 connectors.
In the embodiment of the multi-host supporting OCP network card system shown in fig. 3, reference numeral 1 in the drawing is an OCP network card (OCP card), the connection module 2 includes a first connector 4, which is an sff4c+ connector in the present embodiment, a second connector 5 and a third connector 6 are both identical connectors, in the present embodiment, two second connectors are used, such as slimline_x8conn4 and slimline_x8conn5 shown in fig. 3, respectively, and 4 third connectors 6 are used, such as slimline_x8conn0, slimline_x8conn1, slimline_x8conn2 and slimline_x8conn3 in the drawing, respectively, wherein the slimline_x8conn0 and the slimline_x8conn1 are connected to the CPU0 through the PCIe bus, and the slimline_x8conn1 are connected to the CPU0 through the PCIe bus.
The two slimline_x8conn connectors connected to the CPU0 are connected to slimline_x8conn4 and slimline_x8conn5 by the cables 0 and 1, respectively, and the CPU0 has full-connection communication with the plurality of second connectors 5.
Similarly, two slimline_x8conn connectors slimline_x8conn2 and slimline_x8conn3 connected to the CPU1 are connected to slimline_x8conn4 and slimline_x8conn5 using the cable capable 2 and the cable 3. The connection between two CPUs and the SFF4C+ connector is realized through 6 Slimline_x8conn connectors, the connection between the Slimline_x8conn4-5 and the Slimline_x8conn0-3 does not need other data protocol conversion modules, and the connection between the CPU0 and the CPU and the SFF4C+ can be realized without additional development work.
In addition, the sff4c+ connector (conn is a short of connector) is an x16PCIe high speed connector on the OCP network card. The sff4c+ connector is provided with a 3bit Bifurcation pin (hereinafter abbreviated as BIF) according to the OCP specification. The 3bit BIF in the prior art design is typically set by a pull-up and pull-down resistor, as shown in fig. 4 a. In the present invention, as shown in fig. 4B, the pins bif_id_2 and bif_id_1 are still set by pull-down resistors, bif_id_0 is connected to sideband signals addr_cpu_0 on slimline_x8conn4 and slimline_x8conn5, two sideband signals addr_cpu_0 on slimline_x8conn4 and slimline_x8conn5 are connected to one exclusive or gate logic circuit, and serial numbers from slimline_x8conn4 and slimline_x8conn5 representing the connected CPUs are input to the exclusive or gates in the form of different levels in potential, and are input to the bif_id_0 pin of the sff4c+ connector after passing through the exclusive or gates. In some embodiments of the present invention, if a service needs to use only 1 CPU to communicate with the OCP network card, sff4c+ connectors may be connected to CPU0 through cable 0 and cable 1 or to CPU1 through cable 2 and cable 3 by means of two connectors of slimline_x8conn4 and slimline_x8conn5, and the values of two sideband signals addr_cpu_0 of slimline_x8conn4 and slimline_x8conn5 are the same, meaning that slimline_x8conn5 and slimline_x8conn5 are connected to the same CPU, when the values of two addr_cpu_0 are the same, the output of the logic exclusive or gate according to the exclusive or operation is 0 when it passes through the exclusive or gate, that is, the bit_id [2:0] obtained by the OCP is 000, and the operation mode of the OCP is considered to be in the single-host mode (meaning that only 1 CPU is connected in the topology of the network card, meaning that the network card is connected).
In some embodiments of the present invention, if a service requires the use of two CPUs, two slimline_x8conn4 may be connected to 1 of slimline_x8conn0 or slimline_x8conn2 by cable 0 or cable 2; in addition, the slimline_x8conn4 may be connected to 1 of the slimline_x8conn1 or the slimline_x8conn3 through the cable 1 and the cable 3, that is, CPU0 and CPU1 each exclusively use 1 of the slimline_x8conn4 and the slimline_x8conn5 to communicate with the sff4c+ connector, while the sideband signals addr_cpu_0 of the slimline_x8conn4 and the slimline_x8conn5 respectively represent the connected CPUs, that is, the two connected CPUs have different values, and then output the result of 1 after passing through the exclusive or gate, that is, the bifid [2:0] obtained by the OCP network card is 001, and is considered to be in the multihost mode.
In some embodiments of the present invention, when switching from CPU to multi-CPU mode, the sideband signal ADDR_CPU_0 of the corresponding slimline_x8conn connector on the third connector 6 will change (0 to 1 or 1 to 0) after any CPU disconnects from the third connector 6. In this process, the corresponding CPU to be disconnected may change the value or the potential of the sideband signal addr_cpu_0 connected to the slimline_x8conn, further change the output result of the exclusive or gate to realize the mode of switching the OCP network card, and after the OCP network card is switched, the network data will not be sent to the CPU through the slimline_x8conn connector any more, and the CPU may disconnect the connection with the corresponding slimline_x8conn. For example, taking the example of the disconnection of the CPU1, the CPU1 changes the value of the sideband signal addr_cpu_0 after receiving the disconnection signal to the slimline_x8conn2 and slimline_x8conn3 connected thereto, slimline_x8conn2 and slimline_x8conn3, and simultaneously sends the changed addr_cpu_0 to the slimline_x8conn5, and the slimline_x8conn5 sends the changed value of addr_cpu0 and the changed value of addr_cpu0 of slimline_x8conn4 to the sff4c+ connector after passing through the exclusive or gate, and further sends the signal with the bifid [2:0] of 000 to the OCP network card to switch the operation mode of the OCP to the single host mode.
In some embodiments of the present invention, when the single Host mode is switched to the multi Host mode, the CPU may also initiate the connection signal and change the value of the sideband signal of the third connector 6, so as to output the bif_id [2:0] of the OCP network card mode after the exclusive-or operation of the values of the different sideband signals of the two second connectors. Specifically, taking CPU1 as an example, when CPU0 needs to connect an OCP network card, firstly, the slimline_x8conn2 and slimline_x8conn3 are connected, and a connection signal is initiated, when slimline_x8conn2 and slimline_x8conn3 are connected only by the same CPU, the value or potential of addr_cpu0 is changed, and the connection signal is sent to slimline_x8conn4 and slimline_x8conn5, slimline_x8conn4 and 5 are judged according to the number of connected slimline_x8conn to output the corresponding value of addr_cpu0, namely when slimline_x8conn4 and slimline_x8conn5 are connected only by the same CPU, the cable connected by slimline_x8conn5 is only by 1 data, and when the two cables connected by slimline_x8conn5 are respectively changed to the value of 1, and when the two connected by the two cables are changed to the value of slimline_x8conn5, the value of the corresponding to be equal to the corresponding value of the slimline_2conn0, and when the two connected by the two signals are changed to the value of the corresponding optical network card 0, and when the two connected by the two signals are changed to the value of slimline_x8conn4 and the value of the corresponding to be the corresponding value of the corresponding optical network card 0, namely, and the slimline_x8 conn0 is changed to be connected, and the value of the slimline_2 is changed to the same, and the value is connected.
It should be noted that when the OCP network card is in different working modes, software configuration such as related drivers on the operating system of the server where the network card is located will automatically adapt corresponding data links for the CPU1 and the CPU0 according to different modes, and in the actual circuit, the slimline_x8conn4 and slimline_x8conn5 may be respectively responsible for forwarding link data of one CPU.
As shown in fig. 5, another aspect of the present invention further proposes a server, where the server includes the on-board OCP network card system supporting multihosts disclosed in the foregoing embodiment.
By adding 2 sliding_x8 connectors on the main board, the PCB wiring is directly connected to the SFF4C+ connector of the OCP interface, so that the configuration of the on-board OCP network card of the server can be realized. The CPU end sliding_x8 connector is flexibly spliced through the cable, so that a network card single host or multi-host mode can be realized. BIF ID self-adaption can be realized through an exclusive OR gate so as to give the OCP network card correct configuration. Can effectively solve the following problems: and the flexible configuration of the uplink host of the on-board OCP network card is realized. The network card single host or multi host mode is realized. The problems of long development period, rising cost of manpower and material resources and the like caused by newly opening the board card are solved. Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as software or hardware depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
It should be understood that as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The foregoing embodiment of the present invention has been disclosed with reference to the number of embodiments for the purpose of description only, and does not represent the advantages or disadvantages of the embodiments.
Claims (5)
1. An on-board OCP network card system supporting multihosts, comprising:
OCP network card;
a plurality of CPUs;
a connection module;
the connection module is respectively connected with the plurality of CPUs and the OCP network card and is configured to realize different data transmission modes of the plurality of CPUs and the OCP network card according to the number of the plurality of CPUs;
the connection module includes:
the first connector is connected with the OCP network card and is configured to realize data transmission between the OCP network card and the plurality of CPUs;
the connection module further includes:
a plurality of second connectors connected to the first connector and configured to enable data transmission between the plurality of CPUs and the first connector;
the connection module further includes:
a plurality of third connectors which are grouped in a predetermined number and are correspondingly connected with the CPUs in a grouping manner, and are respectively connected with the plurality of second connectors, and are configured to realize data transmission between the plurality of CPUs and the plurality of second connectors;
further comprises:
connecting the predetermined lines of the plurality of second connectors to the predetermined pins of the first connector after passing through a logic exclusive-or gate;
the first connector is further configured to:
according to the potential change of the preset pin, sending an instruction for setting a transmission mode to the OCP network card so as to change the working mode of the OCP network card;
the first connector is provided with a 3bit bifunction pin, the BIF_ID_2 pin and the BIF_ID_1 pin are set by pull-down resistors, the BIF_ID_0 pin is connected with sideband signals ADDR_CPU_0 on two second connectors, the two sideband signals ADDR_CPU_0 on the two second connectors are connected to an exclusive OR gate logic circuit, the numbers from the two second connectors representing the connected CPU are input to the exclusive OR gate in the form of different levels in potential, and the numbers are input to the BIF_ID_0 pin of the first connector after passing through the exclusive OR gate.
2. The system of claim 1, wherein the third connector is further configured to:
and transmitting the connected CPU information to the first connector through a predetermined line of the second connector.
3. The system of claim 1, wherein the first connector is an sff4c+ connector.
4. The system of claim 1, wherein the second connector and the third connector are slimline_x8 connectors.
5. A server comprising the multi host supported OCP network card system of any one of claims 1-4.
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| WO2021169283A1 (en) * | 2020-02-29 | 2021-09-02 | 苏州浪潮智能科技有限公司 | Ocp adapter card and computer device |
| CN113703535A (en) * | 2021-07-30 | 2021-11-26 | 苏州浪潮智能科技有限公司 | Connection configuration method and system of multi-node server and OCP card |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021169283A1 (en) * | 2020-02-29 | 2021-09-02 | 苏州浪潮智能科技有限公司 | Ocp adapter card and computer device |
| CN113703535A (en) * | 2021-07-30 | 2021-11-26 | 苏州浪潮智能科技有限公司 | Connection configuration method and system of multi-node server and OCP card |
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