CN108614794A - A kind of PCIe bus switchs device and method based on server architecture - Google Patents
A kind of PCIe bus switchs device and method based on server architecture Download PDFInfo
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- CN108614794A CN108614794A CN201810306367.4A CN201810306367A CN108614794A CN 108614794 A CN108614794 A CN 108614794A CN 201810306367 A CN201810306367 A CN 201810306367A CN 108614794 A CN108614794 A CN 108614794A
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- contact
- cable
- pcie bus
- pcie
- bus switch
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/409—Mechanical coupling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0026—PCI express
Abstract
The present invention discloses a kind of PCIe bus switch methods based on server architecture, it is related to server system link optimization technologies, walk to the ends configurating terminal PCH, PCLe to extend the middle position punching at end by the PCB trace at the ends CPU, and it is punched respectively on the lead that the ends configurating terminal PCH, PCLe extend end, then use a contact pin like contact differential lines cable, it realizes according to different customer demands, cable is interconnected at corresponding via.The present invention can realize PCIe bus switch functions according to without demand, ensure that the same veneer of identical product meets the different demands of different clients；Reduce the number of devices on pcb board, reduces the Bom costs of pcb board；Shorten cabling of the signal on pcb board simultaneously, reduce loss, improves PCIe bus links performances.The invention also provides a kind of PCIe bus switch devices based on server architecture.
Description
Technical field
The present invention relates to server system link optimization technologies, specifically a kind of PCIe based on server architecture is total
Line switching device and method.
Background technology
The continuous promotion and the fast development of internet industry, China's Server Market for benefiting from information-based permeability are protected
Hold steady-state growth.The further development in domestic cloud computing market and ripe, public cloud, the rapid growth of private clound construction, effectively
Promote the demand of server.To applying under line, under the promotion of the mobile interchanges tide such as social networks in mobile payment, OTO lines, mutually
The growth of explosion type is presented in working application, also brings more opportunities for server market.It is comprehensive with server market demand
Property and diversification, what the randomness of server product configuration and flexibility became that present server research and development manufacturer faces huge chooses
War, different configuration of server can be provided according to the demand of different clients by how being designed within the most fast time, simultaneously
The Bom costs of veneer device are minimum when can guarantee idle configuration again.
For example, the two-way server of Purley platforms, there are two CPU altogether, and each CPU has the PCIe of 48 lane, big
Under most demand unanimous circumstances, some customer demands provide PCIe extensions, some clients for the PCIe buses of wherein 8 lane
Demand, which is this part lane, can improve the data transmission performance between CPU and PCH, then meeting with a product in order to allow
The demand of the two clients, then will realize this demand by the way of signal switching in mainboard PCB design.Currently, real
On existing mainboard PCB there are three types of the modes of signal handoff functionality：
First, two switch chips are selected using one, bus enters switch chips all the way, and two-way bus is come out from chip
It is separately connected PCIe extensions and PCH, as shown in Fig. 1.The drawbacks of this realization method is the more switch chips of meeting on plate,
No matter which kind of demand is, PCIe link can all pass through this switch chip, improve link load, reduce link performance, main simultaneously
Because adding this chip on plate, increase Bom costs；
Second, PCIe is extended using connector, while the PCIe buses of PCH are led into another connector, when needing CPU
When being interconnected with PCH, then the two connectors are connected by cable, as shown in Fig. 2.The drawbacks of this realization method is meeting on plate
More two connectors increase Bom costs, while also increasing the length of link, reduce link performance；
Third folds pad design using capacitance and realizes handoff functionality, as shown in Fig. 3.The drawbacks of this realization method is,
There are two capacitances for RX chains road, can substantially reduce the performance of link, in addition also to have two sets of mainboard Bom, different demands to be welded in PCB
Capacitance on plate is also different, more complex in board management and control in this way, it is difficult to realize that more demands use the requirement of same board.
Invention content
The present invention is directed to the demand and shortcoming of current technology development, and it is total to provide a kind of PCIe based on server architecture
Line switching device and method.
A kind of PCIe bus switch devices based on server architecture of the present invention solve what above-mentioned technical problem used
Technical solution is as follows：The PCIe bus switch devices based on server architecture, structure include：Pcb board card, and setting
The ends CPU, the ends configurating terminal PCH and PCIe on pcb board card extend end；
The PCB trace at the ends CPU extends the middle position punching at end in the ends configurating terminal PCH, PCIe；Meanwhile matching
It sets and is punched respectively on the lead at the ends terminal PC H, PCIe extensions end；
The PCIe bus switchs device further includes a differential lines cable, described according to different customer demands
Cable is interconnected at corresponding via, and the cable is interconnected in via and the PCH on the PCB trace of the ends CPU
The via on lead is held, or the via being interconnected on the PCB trace of the ends CPU and the mistake on PCIe extension end leads
Hole.
Specifically, the PCIe bus switchs device uses a cable for having 8 pairs of differential lines, the both ends of the cable
Being 8 pairs of contact pins respectively, 16 contact pins are arranged like contact, i.e., at both ends like contact.
Specifically, the via and the ends PCH, PCIe on the PCB trace of the ends CPU extend the via on the lead of end
It is respectively provided in the same size with the normal via of pcb board cartoon；
Also, the both sides of the via are each provided with non-metallic hole of the contact pin like contact of a fixation cable.
Specifically, the tip side of the cable includes the shell of an insulator, 16 contact pins are inserted on the shell
Like contact；Corresponding each contact pin offers the circular hole for fixing these contact pins like contact like contact on the shell；The shell
The fixed column of a fixation cable is respectively set in both sides.
Specifically, the contact pin uses the form of copper needle like contact；The shell uses plastic material or other insulation materials
Material is made.
The invention also provides a kind of PCIe bus switch methods based on server architecture, the specific implementation process is as follows：
On a pcb board card, the PCB trace first at the ends CPU walks to the ends configurating terminal PCH, PCLe to extend the centre at end
It punches at position, and is punched respectively on the lead that the ends configurating terminal PCH, PCLe extend end, then use a differential lines
Cable is interconnected at corresponding via by cable according to different customer demands, i.e., the described cable is interconnected in the ends CPU
Via on PCB trace and the via on the lead of the ends PCH, or the via being interconnected on the PCB trace of the ends CPU and institute
State the via on PCIe extension end leads.
A kind of PCIe bus switchs device and method based on server architecture of the present invention, compared with prior art
It has an advantageous effect in that：The present invention interconnects the ends CPU and configurating terminal by contact pin like contact cable, can be according to without need
Realistic existing PCIe bus switch functions, ensure that the same veneer of identical product meets the different demands of different clients；Reduce pcb board
On number of devices, reduce the Bom costs of pcb board；Cabling of the signal on pcb board can also be shortened simultaneously, reduce loss, carry
High PCIe bus links performance.
Description of the drawings
Illustrate the embodiment of the present invention or technology contents in the prior art in order to clearer, below to the embodiment of the present invention
Or required attached drawing does simple introduction in the prior art.It will be apparent that attached drawing disclosed below is only the one of the present invention
Section Example to those skilled in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings, but within protection scope of the present invention.
Attached drawing 1 is the schematic diagram of Switch chip switching modes；
Attached drawing 2 is the schematic diagram that Cable interconnects switching mode；
Attached drawing 3 is the schematic diagram of capacitance switching mode；
Attached drawing 4 is the schematic diagram of PCIe bus switch device of the embodiment 1 based on server architecture；
Attached drawing 5 is the schematic diagram of the tip side of cable described in embodiment 2；
Reference sign：1, shell, 2, contact pin like contact, 3, circular hole, 4, fixed column.
Specific implementation mode
The technical issues of to make technical scheme of the present invention, solving and technique effect are more clearly understood, below in conjunction with tool
Body embodiment is checked technical scheme of the present invention, is completely described, it is clear that described embodiment is only this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiment of the present invention, those skilled in the art are not doing
All embodiments obtained under the premise of going out creative work, all within protection scope of the present invention.
Embodiment 1:
The present embodiment proposes a kind of PCIe bus switch devices based on server architecture, as shown in annex map 4, structure
Including：Pcb board card, and the ends CPU, the ends configurating terminal PCH and the PCIe that are arranged on pcb board card extend end；
The PCB trace at the ends CPU extends the middle position punching at end in the ends configurating terminal PCH, PCIe；Meanwhile it configuring eventually
It holds and is punched respectively on the lead at the ends PCH, PCIe extensions end；
The PCIe bus switch devices further include a differential lines cable, according to different customer demands, directly by this root
Differential lines cable is interconnected at corresponding via, by differential lines cable be interconnected in via on the PCB trace of the ends CPU with
Via on the lead of the ends PCH, or the via being interconnected on the PCB trace of the ends CPU and the via on PCIe extension end leads, you can
Realize PCIe bus switch functions.
Differential lines cable described here be drive end (ends CPU) send two equivalences, reverse phase signal, receiving terminal (matches
Set terminal) by comparing the differences of the two voltages, to carry out decision logic state be " 0 " or " 1 "；Carry that of differential signal
Difference cabling is known as to cabling.
The present embodiment also proposed a kind of PCIe bus switch methods based on server architecture, and technical solution is the same as above-mentioned
PCIe bus switch device of the embodiment 1 based on server architecture can be referred to mutually, the specific implementation process is as follows：
On a pcb board card, the PCB trace first at the ends CPU walks to the ends configurating terminal PCH, PCLe to extend the centre at end
It punches at position, and is punched respectively on the lead that the ends configurating terminal PCH, PCLe extend end, then use a differential lines
Cable is interconnected at corresponding via by cable according to different customer demands, i.e., the described cable is interconnected in the ends CPU
Via on PCB trace and the via on the lead of the ends PCH, or the via being interconnected on the PCB trace of the ends CPU and institute
State the via on PCIe extension end leads.Both reduce the number of devices on pcb board in this way, and reduce the Bom costs of pcb board,
PCIe bus links performances are improved, while can flexibly realize different functions again.
Embodiment 2：
A kind of PCIe bus switch devices based on server architecture that the present embodiment proposes are another tools of the present invention
Body embodiment fills on the basis of PCIe bus switch device of the embodiment 1 based on server architecture in PCIe bus switchs
A piece cable for there are 8 pairs of differential lines of middle use is set, to be connected at the ends CPU of pcb board card and the corresponding via of configurating terminal,
Improve the feasibility and practicability of the present embodiment technical solution.
PCIe bus switch device of the present embodiment based on server architecture, used cable, which is one, 8 pairs of difference
The both ends of the cable of line, the cable are 8 pairs of contact pins respectively like contact, i.e., 16 contacts are arranged at both ends.Also, the ends CPU PCB
The via on via and the ends configurating terminal PCH, PCIe extension end leads on cabling is respectively provided with the same normal via of pcb board cartoon
It is in the same size, simplify the development difficulty of pcb board card upward wiring design.Meanwhile in the ends CPU PCB trace and configurating terminal PCH
A non-metallic hole, the contact pin for fixing the both ends cable is respectively arranged in the both sides that end, PCIe extend the via on the lead of end
Like contact.
Specifically, 16 contact pins are respectively set at the both ends of the cable like contact, as shown in Fig. 5, the cable's touches
Point end includes the shell 1 of an insulator, this shell other insulating materials can be made of plastic material etc..It is inserted on the shell
Equipped with 16 contact pins like contact 2, these contact pins exist like contact in the form of copper needle；Corresponding each contact pin is like the contact shell 1
On offer circular hole 3, for these contact pins to be fixedly installed like contact.Meanwhile a fixed column is respectively set in the both sides of the shell 1
4, fixed column is set in the non-metallic hole at the corresponding via on PCB trace, realizes the effect for fixing the cable.
The present embodiment also proposed a kind of PCIe bus switch methods based on server architecture, and technical solution is the same as above-mentioned
PCIe bus switch device of the embodiment 2 based on server architecture can be referred to mutually, use 8 pairs of differential lines
The both ends of cable, cable be respectively 8 to (16) contact pin like contact；Also, on pcb board card, the PCB trace at the ends CPU and match
The ends terminal PC H, the via on PCIe extension end leads are set, the size of common via is consistent in the size and pcb board of via,
Convenient for the design and exploitation of the pcb board card.Meanwhile the both sides of the via on the PCB trace at the ends CPU and configurating terminal lead are equal
It is provided with non-metallic hole, for fixing the contact pin at the both ends cable like contact.
Contact pin at the ends cable exists like contact in the form of row's copper needle, while being arranged one on this row's copper needle
The shell of insulator, the shell can be plastics or other isolation materials.The circular hole that corresponding each contact pin is offered on shell, is used
In fixing plug pin；Meanwhile one fixed column, the contact pin end for fixing cable are respectively set in the both sides of shell.
From the technical solution of PCIe bus switch method of the above-described embodiment 2 based on server architecture it is found that using contact pin
The ends CPU and configurating terminal are connected like the differential lines cable of contact, the different demands scheme of multiple users can be flexibly met,
Reduce the expense for adding device on pcb board card simultaneously, reduces the Bom costs of entire pcb board card, additionally it is possible to shorten signal
Cabling on pcb board card is conducive to improve signal performance.
Use above specific case elaborates the principle of the present invention and embodiment, these embodiments are
It is used to help understand core of the invention technology contents, the protection domain being not intended to restrict the invention, technical side of the invention
Case is not limited in above-mentioned specific implementation mode.Based on the above-mentioned specific embodiment of the present invention, those skilled in the art
Without departing from the principle of the present invention, any improvement and modification to made by the present invention should all fall into the special of the present invention
Sharp protection domain.
Claims (10)
1. a kind of PCIe bus switch devices based on server architecture, which is characterized in that its structure includes：Pcb board card, and
The ends CPU, the ends configurating terminal PCH and the PCIe extensions end being arranged on pcb board card；
The PCB trace at the ends CPU extends the middle position punching at end in the ends configurating terminal PCH, PCIe；Meanwhile it configuring eventually
It holds and is punched respectively on the lead at the ends PCH, PCIe extensions end；
The PCIe bus switchs device further includes a differential lines cable, and according to different customer demands, the cable is mutual
It is connected at corresponding via, the cable is interconnected on the via on the PCB trace of the ends CPU and the ends PCH lead
Via, or the via that is interconnected on the PCB trace of the ends CPU and the via on PCIe extension end leads.
2. a kind of PCIe bus switch devices based on server architecture according to claim 1, which is characterized in that described
PCIe bus switch devices use a cable for having 8 pairs of differential lines, and the both ends of the cable are that 8 pairs of contact pins seemingly touch respectively
16 contact pins are arranged like contact in point that is, at both ends.
3. a kind of PCIe bus switch devices based on server architecture according to claim 2, which is characterized in that described
The via on via and the ends PCH, PCIe extension end leads on the PCB trace of the ends CPU is respectively provided with the pcb board card
Usual via is in the same size；
Also, the both sides of the via are each provided with non-metallic hole of the contact pin like contact of a fixation cable.
4. a kind of PCIe bus switch devices based on server architecture according to claim 3, which is characterized in that described
The tip side of cable includes the shell of an insulator, and 16 contact pins are inserted on the shell like contact；Corresponding each contact pin
Like contact, the circular hole for fixing these contact pins like contact is offered on the shell；The both sides of the shell are respectively set one admittedly
The fixed column of the fixed cable.
5. a kind of PCIe bus switch devices based on server architecture according to claim 3, which is characterized in that described to insert
Needle uses the form of copper needle like contact；The shell is made of plastic material or other insulating materials.
6. a kind of PCIe bus switch methods based on server architecture, which is characterized in that on a pcb board card, first in CPU
The PCB trace at end walk to the ends configurating terminal PCH, PCLe extend end middle position punching, and the ends configurating terminal PCH,
It is punched respectively on the lead at PCLe extensions end, a differential lines cable is then used, according to different customer demands, by cable
It is interconnected at corresponding via, i.e., the described cable is interconnected on the via on the PCB trace of the ends CPU and the ends PCH lead
Via, or the via being interconnected on the PCB trace of the ends CPU and the via on PCIe extension end leads.
7. a kind of PCIe bus switch methods based on server architecture according to claim 6, which is characterized in that described
PCIe bus switch devices use a cable for having 8 pairs of differential lines, and the both ends of the cable are that 8 pairs of contact pins seemingly touch respectively
16 contact pins are arranged like contact in point that is, at both ends.
8. a kind of PCIe bus switch methods based on server architecture according to claim 7, which is characterized in that described
The via on via and the ends PCH, PCIe extension end leads on the PCB trace of the ends CPU is respectively provided with the pcb board card
Usual via is in the same size；
Also, the both sides of the via are each provided with non-metallic hole of the contact pin like contact of a fixation cable.
9. a kind of PCIe bus switch methods based on server architecture according to claim 8, which is characterized in that described
The tip side of cable includes the shell of an insulator, and 16 contact pins are inserted on the shell like contact；Corresponding each contact pin
Like contact, the circular hole for fixing these contact pins like contact is offered on the shell；The both sides of the shell are respectively set one admittedly
The fixed column of the fixed cable.
10. a kind of PCIe bus switch methods based on server architecture according to claim 9, which is characterized in that described
Contact pin uses the form of copper needle like contact；The shell is made of plastic material or other insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810306367.4A CN108614794B (en) | 2018-04-08 | 2018-04-08 | PCIe bus switching device and method based on server architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810306367.4A CN108614794B (en) | 2018-04-08 | 2018-04-08 | PCIe bus switching device and method based on server architecture |
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| Publication Number | Publication Date |
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| CN108614794A true CN108614794A (en) | 2018-10-02 |
| CN108614794B CN108614794B (en) | 2021-03-26 |
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| CN201810306367.4A Active CN108614794B (en) | 2018-04-08 | 2018-04-08 | PCIe bus switching device and method based on server architecture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU211039U1 (en) * | 2021-07-01 | 2022-05-18 | Общество С Ограниченной Ответственностью "Эмзиор" | SERVER PLATFORM PERFORMED WITH THE POSSIBILITY OF DETECTING CONNECTION/DISCONNECTION OF NETWORK CARDS AND/OR SOLID STATE DRIVES AND IMPLEMENTED WITH NETWORK APPLIANCE FUNCTIONS |
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| CN103246314A (en) * | 2012-02-07 | 2013-08-14 | 鸿富锦精密工业（深圳）有限公司 | Mainboard with expansion connector |
| US20140177191A1 (en) * | 2012-12-26 | 2014-06-26 | Hon Hai Precision Industry Co., Ltd. | Motherboard |
| CN204046631U (en) * | 2014-08-06 | 2014-12-24 | 浪潮电子信息产业股份有限公司 | The quick management system of a kind of BMC based on MCTP technology |
| CN107729277A (en) * | 2017-09-29 | 2018-02-23 | 郑州云海信息技术有限公司 | A kind of multifunctional multiplexing high speed signal co lay Wiring structures and Wiring method |
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2018
- 2018-04-08 CN CN201810306367.4A patent/CN108614794B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246314A (en) * | 2012-02-07 | 2013-08-14 | 鸿富锦精密工业（深圳）有限公司 | Mainboard with expansion connector |
| US20140177191A1 (en) * | 2012-12-26 | 2014-06-26 | Hon Hai Precision Industry Co., Ltd. | Motherboard |
| CN204046631U (en) * | 2014-08-06 | 2014-12-24 | 浪潮电子信息产业股份有限公司 | The quick management system of a kind of BMC based on MCTP technology |
| CN107729277A (en) * | 2017-09-29 | 2018-02-23 | 郑州云海信息技术有限公司 | A kind of multifunctional multiplexing high speed signal co lay Wiring structures and Wiring method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU211039U1 (en) * | 2021-07-01 | 2022-05-18 | Общество С Ограниченной Ответственностью "Эмзиор" | SERVER PLATFORM PERFORMED WITH THE POSSIBILITY OF DETECTING CONNECTION/DISCONNECTION OF NETWORK CARDS AND/OR SOLID STATE DRIVES AND IMPLEMENTED WITH NETWORK APPLIANCE FUNCTIONS |
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| Publication number | Publication date |
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| CN108614794B (en) | 2021-03-26 |
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