CN113448416B - Hot plug stabilizing equipment and computer - Google Patents
Hot plug stabilizing equipment and computer Download PDFInfo
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- CN113448416B CN113448416B CN202110626967.0A CN202110626967A CN113448416B CN 113448416 B CN113448416 B CN 113448416B CN 202110626967 A CN202110626967 A CN 202110626967A CN 113448416 B CN113448416 B CN 113448416B
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- hot plug
- close
- hot
- plug device
- conductor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
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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
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
Abstract
The invention discloses a hot plug stabilizing device and a computer, comprising: a close switch configured to switch on to issue a first close state signal in response to the hot plug device being stably in a fully plugged-in state and switch off to issue a second close state signal in response to the hot plug device not being in a fully plugged-in state or about to be unplugged; the out-of-band manager is configured to selectively record or update the in-place state of the hot plug device; a hot plug controller configured to power up the computer for the hot plug device in response to receiving a first close state signal from the close conductor if a live signal for the hot plug device is received from the backplane, and to power down the computer for the hot plug device in response to receiving a second close state signal from the close conductor if a live signal for the hot plug device is received from the backplane. The invention can avoid the unstable connection of the hot-plug equipment and improve the running stability and the communication speed of the computer and the hot-plug equipment.
Description
Technical Field
The present invention relates to the field of hot plug, and more particularly, to a hot plug stabilizing device and a computer.
Background
The current server needs 24 hours of uninterrupted time to start up, and for the current AI (artificial intelligence) and big data operation analysis, a faster NVMe (nonvolatile memory) SSD (solid state disk) is often needed for use. Hot plug technology has also become widely used in recent years, which means plugging and unplugging cards, cables or other devices in a system that runs at full speed without power down. However, in the general chassis design in the prior art, tolerance usually exists, when the mold is opened, if the tolerance is too large, the Carrier (Carrier) guide rail elastic sheet of the mechanism is pushed too tightly, and the NVMe disk cannot be normally inserted at one time, and moreover, different habits of disk insertion by everyone also cause inconsistent speeds of the NVMe disk insertion, and a situation that the insertion is slow may occur.
The above two points are easy to be lengthened due to the unstable time during insertion, which causes the problem that the PCIe (peripheral component interconnect express) Link (connection) has a reduced speed, such as PCIe Gen3- > Gen2 or PCIe Gen4- > Gen3, or a reduced width, such as PCIe Lane x4- > x2 or PCIe Lane x4- > x1, and affects the transmission performance of the device.
Aiming at the problem of reduced transmission performance of equipment caused by unstable hot plugging in the prior art, no effective solution is available at present.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide a hot plug stabilizing device and a computer, which can avoid unstable connection of the hot plug device, and improve operation stability and communication speed of the computer and the hot plug device.
Based on the above object, a first aspect of the embodiments of the present invention provides a hot plug stabilizing device, including:
the closing conduction device is arranged on the hot plug device side and is configured to be conducted to send a first closing state signal in response to the hot plug device being stably in a fully inserted state and cut off to send a second closing state signal in response to the hot plug device not being in the fully inserted state or being pulled out;
an out-of-band manager connected to the close conductor and configured to selectively document or update an in-place status of the hot-plugged device in response to receiving the first close status signal or the second close status signal from the close conductor;
a hot plug controller connected to the close conductor and configured to power up the computer for the hot plug device in response to receiving a first close state signal from the close conductor if a live signal for the hot plug device is received from the backplane, and to power down the computer for the hot plug device in response to receiving a second close state signal from the close conductor if a live signal for the hot plug device is received from the backplane.
In some embodiments, the closed conductor is also grounded; the close conductor is configured to send a low level as a first close state signal to the out-of-band manager and the hot plug controller.
In some embodiments, the closed conductor is also grounded; the close conductor is configured to send a high level as a second close state signal to the out-of-band manager and the hot plug controller.
In some embodiments, the out-of-band manager is configured to periodically display the in-place status to the outside world via the out-of-band channel after logging or updating the in-place status of the hot-plugged device.
In some embodiments, the hot plug controller is further configured to cause the computer to issue an alert for the hot plug device in response to receiving the first close status signal from the close conductor without receiving a live status signal for the hot plug device from the backplane, and to cause the computer to issue the alert for the hot plug device in response to losing the live status signal for the hot plug device received from the backplane without receiving the live status signal from the close conductor.
In some embodiments, a hot plug device in a fully plugged-in state is stabilized connected to a PCIe bus of a computer; the hot plug controller causes the computer to provide a PCIe connection to the hot plug device having a maximum rate and a maximum bandwidth compatible with the hot plug device in response to the hot plug device being stably in a fully inserted state.
In some embodiments, closing the conductor has a first mechanical structure that switches on and off states; the first mechanical structure has a first fool-proof structure that prevents the closing conductor from being conducted if the hot-plugged device is not in a fully plugged-in state and/or the hot-plugged device from being unplugged if the closing conductor has been conducted.
In some embodiments, a second mechanical structure corresponding to the first mechanical structure is further attached to the computer or the hot-pluggable device, wherein the second mechanical structure has a second fool-proof structure that prevents the closing conductor from being conducted if the hot-pluggable device is not in a fully plugged state and/or the hot-pluggable device from being unplugged if the closing conductor has been conducted.
In some embodiments, the in-place signal for a hot-plugged device is Ifdet #; the hot plug device is configured to first turn Ifdet # on to the computer in response to being plugged in, while finally turning Ifdet # off from the computer in response to the hot plug device being unplugged.
A second aspect of an embodiment of the present invention provides a computer, including:
a central processor connected to a PCIe bus;
a backplane carrying connectors of hot-plug devices and connected to the central processor;
the hot plug stabilization device connected to the central processor and the backplane further comprises:
the closing conduction device is arranged on the hot plug device side and is configured to be conducted to send a first closing state signal in response to the hot plug device being stably in a fully inserted state and cut off to send a second closing state signal in response to the hot plug device not being in the fully inserted state or being pulled out;
an out-of-band manager connected to the closing conductor and configured to selectively document or update an in-place status of the hot-plugged device in response to receiving the first or second closing state signal from the closing conductor;
a hot plug controller connected to the close conductor and configured to power up the computer for the hot plug device in response to receiving a first close state signal from the close conductor in an instance in which a live signal for the hot plug device is received from the backplane, and to power down the computer for the hot plug device in response to receiving a second close state signal from the close conductor in an instance in which a live signal for the hot plug device is received from the backplane.
The invention has the following beneficial technical effects: the hot plug stabilizing device and the computer provided by the embodiment of the invention are arranged on the side of the hot plug device by using the closing breakover device, are configured to be conducted to send a first closing state signal in response to the hot plug device being stably in a fully inserted state, and are switched off to send a second closing state signal in response to the hot plug device not being in the fully inserted state or being about to be pulled out; an out-of-band manager connected to the closing conductor and configured to selectively document or update an in-place status of the hot-plugged device in response to receiving the first or second closing state signal from the closing conductor; the hot plug controller is connected to the closing breakover device and configured to enable the computer to be powered on for the hot plug device in response to receiving a first closing state signal from the closing breakover device under the condition that a live signal of the hot plug device is received from the backboard, and enable the computer to be powered off for the hot plug device in response to receiving a second closing state signal from the closing breakover device under the condition that the live signal of the hot plug device is received from the backboard, unstable connection of the hot plug device can be avoided, and operation stability and communication speed of the computer and the hot plug device are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a hot plug stabilizing device according to the present invention;
FIG. 2 is a schematic circuit diagram of a hot plug stabilizing device according to the present invention;
fig. 3 is a hot plug device signal definition table of the hot plug stable device provided by 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 are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In view of the above, a first aspect of the embodiments of the present invention provides an embodiment of a hot plug stabilizing device that avoids unstable connection of a hot plug device and improves operation stability and communication speed of a computer and the hot plug device. Fig. 1 is a schematic structural diagram of a hot plug stabilizing device provided by the invention.
The hot plug stable device package as shown in fig. 1 comprises:
the closing conducting device is arranged on the hot plug device side and is configured to conduct to send out a first closing state signal in response to the hot plug device being stably in a fully inserted state and to cut off to send out a second closing state signal in response to the hot plug device not being in the fully inserted state or being pulled out;
an out-of-band manager connected to the close conductor and configured to selectively document or update an in-place status of the hot-plugged device in response to receiving the first close status signal or the second close status signal from the close conductor;
a hot plug controller connected to the close conductor and configured to power up the computer for the hot plug device in response to receiving a first close state signal from the close conductor if a live signal for the hot plug device is received from the backplane, and to power down the computer for the hot plug device in response to receiving a second close state signal from the close conductor if a live signal for the hot plug device is received from the backplane.
The apparatuses and devices disclosed in the embodiments of the present invention may be various electronic terminal devices, such as a mobile phone, a Personal Digital Assistant (PDA), a tablet computer (PAD), a smart television, and the like, or may be a large terminal device, such as a server, and therefore the scope of protection disclosed in the embodiments of the present invention should not be limited to a specific type of apparatus and device. The client disclosed in the embodiment of the present invention may be applied to any one of the above electronic terminal devices in the form of electronic hardware, computer software, or a combination of both.
In some embodiments, the closed conductor is also grounded; the closing the conductor to conduct in response to the hot plugged device being stable in the fully plugged-in state to issue a first close state signal comprises: the close conductor sends a low level as a first close state signal to the out-of-band manager and the hot plug controller.
In some embodiments, the closed conductor is also grounded; the close conductor cutting off to send out a second close state signal in response to the hot plug device not being in a fully plugged-in state or about to be unplugged comprises: the close conductor sends a high level as a second close state signal to the out-of-band manager and the hot plug controller.
In some embodiments, the out-of-band manager is configured to periodically display the in-place status to the outside world via the out-of-band channel after logging or updating the in-place status of the hot-plugged device.
In some embodiments, the hot plug controller is further configured to cause the computer to issue an alert for the hot plug device in response to receiving the first close status signal from the close conductor without receiving the live in signal for the hot plug device from the backplane, and further to cause the computer to issue the alert for the hot plug device in response to losing the receipt of the live in signal for the hot plug device from the backplane with receiving the first close status signal from the close conductor.
In some embodiments, a hot plug device in a fully plugged-in state is stabilized connected to a PCIe bus of a computer; the hot plug controller causes the computer to provide a PCIe connection to the hot plug device having a maximum rate and a maximum bandwidth compatible with the hot plug device in response to the hot plug device being stably in a fully inserted state.
In some embodiments, the closed conductor has a first mechanical structure that switches on and off states; the first mechanical structure has a first fool-proof structure that prevents the closing conductor from being conducted if the hot swap device is not in a fully plugged-in state, and/or prevents the hot swap device from being unplugged if the closing conductor has been conducted.
In some embodiments, a second mechanical structure corresponding to the first mechanical structure is further attached to the computer or the hot swap device, wherein the second mechanical structure has a second fool-proofing structure that prevents the closing conductor from being conducted if the hot swap device is not in a fully plugged-in state and/or the hot swap device from being pulled out if the closing conductor is already conducted.
In some embodiments, the in-place signal for a hot-plugged device is Ifdet #; the hot plug device is configured to first turn Ifdet # on to the computer in response to being plugged in, while finally turning Ifdet # off from the computer in response to the hot plug device being unplugged.
The following further illustrates embodiments of the invention in accordance with the specific example shown in fig. 2.
Referring to fig. 2, the closed conductor (shown as an external force switch, which may be implemented as a pressing handle of a hot-swap device in the embodiment of the present invention) has one end grounded, and has one end connected to a hot-swap controller (implemented by using a CPLD, a complex logic programmable device in the embodiment of the present invention) and an out-of-band manager (implemented by using a BMC, a baseboard management controller in the embodiment of the present invention). The hot plug controller is disposed on a backplane (shown as BP in fig. 2) and connected to a live signal of a hot plug device (denoted as NVMe SSD in the embodiment of the present invention), and the hot plug device is connected to a central processing unit (shown as CPU in fig. 2) of the computer via the backplane.
To insert the NVMe disk, the Carrier (i.e., the aforementioned handle) of the NVMe disk is manually pushed in first. When the Carrier is pushed into the chassis, the handle is still tilted (i.e. disconnected), so that the signal for detecting the closed state is still at the high open-circuit potential, and the CPLD detects that the Ifdet # (i.e. at the micro-signal) is at the low potential, but does not power up. When the handle is pressed flat, the conductive copper sheet in the handle is entirely communicated with the ground, so that the closing state signal is detected to be a low potential, the back plate CPLD can electrify the NVMe disk at the moment, the BMC can be informed of the low potential change and record that the NVMe disk is in a ready state, and the PICE connection is activated.
When the NVMe disk is to be pulled out, the mechanism key of the NVMe disk Carrier is pressed first, and the handle can be ejected at the moment. Since the close state signal is detected to be open, it becomes high, and then the BMC is notified of the high voltage change and records "NVMe disk is removed state", and also notifies the back plate CPLD. After receiving the signal, the back board CPLD sends an Alert _ N signal to the CPU (i.e., interrupt mechanism of hot plug), and deactivates the PICE connection. The CPU then powers off the back plate CPLD through VPP (SMBUS, bus signal), and then unplugs the NVMe disk.
As can be seen from fig. 3, ifDet # of the NVMe disk standard specification is 1st Mating status, which means that during normal plugging, the bit pins contact first, and other signals contact later, so that it is only possible to use external means to ensure that the plug-in is in place without modifying the NVMe disk standard specification.
As can be seen from the foregoing embodiments, the hot plug device according to the embodiments of the present invention, which is provided on the hot plug device side by using the close switch, is configured to switch on to send a first close state signal in response to the hot plug device being stably in the fully plugged-in state, and switch off to send a second close state signal in response to the hot plug device not being in the fully plugged-in state or about to be unplugged; an out-of-band manager connected to the closing conductor and configured to selectively document or update an in-place status of the hot-plugged device in response to receiving the first or second closing state signal from the closing conductor; the hot plug controller is connected to the closing breakover device and configured to enable the computer to be powered on for the hot plug device in response to receiving a first closing state signal from the closing breakover device under the condition that a live signal of the hot plug device is received from the backboard, and enable the computer to be powered off for the hot plug device in response to receiving a second closing state signal from the closing breakover device under the condition that the live signal of the hot plug device is received from the backboard, unstable connection of the hot plug device can be avoided, and operation stability and communication speed of the computer and the hot plug device are improved.
In view of the above object, a second aspect of the embodiments of the present invention provides an embodiment of a computer for avoiding unstable connection of a hot-plug device and improving operation stability and communication speed of the computer and the hot-plug device. The computer includes:
a central processor connected to a PCIe bus;
a backplane carrying connectors of hot-pluggable devices and connected to the central processor;
the hot plug stabilizing device connected to the central processor and the back plate further comprises:
the closing conduction device is arranged on the hot plug device side and is configured to be conducted to send a first closing state signal in response to the hot plug device being stably in a fully inserted state and cut off to send a second closing state signal in response to the hot plug device not being in the fully inserted state or being pulled out;
an out-of-band manager connected to the close conductor and configured to selectively document or update an in-place status of the hot-plugged device in response to receiving the first close status signal or the second close status signal from the close conductor;
a hot plug controller connected to the close conductor and configured to power up the computer for the hot plug device in response to receiving a first close state signal from the close conductor if a live signal for the hot plug device is received from the backplane, and to power down the computer for the hot plug device in response to receiving a second close state signal from the close conductor if a live signal for the hot plug device is received from the backplane.
As can be seen from the foregoing embodiments, the computer provided in the embodiments of the present invention, through using the close switch, is disposed on the hot plug device side, and is configured to switch on to send out a first close state signal in response to the hot plug device being stably in the fully plugged-in state, and switch off to send out a second close state signal in response to the hot plug device not being in the fully plugged-in state or about to be unplugged; an out-of-band manager connected to the close conductor and configured to selectively document or update an in-place status of the hot-plugged device in response to receiving the first close status signal or the second close status signal from the close conductor; the hot plug controller is connected to the closing breakover device and configured to enable the computer to be powered on for the hot plug device in response to receiving a first closing state signal from the closing breakover device under the condition that a live signal of the hot plug device is received from the backboard, and enable the computer to be powered off for the hot plug device in response to receiving a second closing state signal from the closing breakover device under the condition that the live signal of the hot plug device is received from the backboard, unstable connection of the hot plug device can be avoided, and operation stability and communication speed of the computer and the hot plug device are improved.
It should be noted that, the above-mentioned embodiment of the computer adopts the embodiment of the hot plug stabilizing device to specifically describe the working process of each module, and those skilled in the art can easily think that these modules are applied to other embodiments of the hot plug stabilizing device. Of course, since the modules in the embodiment of the hot plug stabilizing device may be intersected, replaced, added, or deleted, these reasonable permutations and combinations should also fall within the scope of the present invention, and should not limit the scope of the present invention to the embodiment.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant only to be exemplary, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of an embodiment of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit or scope of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. A hot plug stabilization device, comprising:
the closing conducting device is arranged on the hot plug device side and is configured to be conducted to send a first closing state signal in response to the closing conducting device closing the hot plug device to enable the hot plug device to be stably in a fully inserted state, and to be switched off to send a second closing state signal in response to the closing conducting device not closing the hot plug device to enable the hot plug device not to be in the fully inserted state or to be pulled out;
an out-of-band manager connected to the close conductor and configured to selectively document or update an in-place status of a hot plug device in response to receiving the first close status signal or the second close status signal from the close conductor;
a hot plug controller connected to the close conductor and configured to power up the computer for the hot plug device in response to receiving the first close state signal from the close conductor in an instance in which the in-place signal for the hot plug device is received from the backplane, and to power down the computer for the hot plug device in response to receiving the second close state signal from the close conductor in an instance in which the in-place signal for the hot plug device is received from the backplane.
2. The apparatus of claim 1, wherein the closed conductor is also connected to ground; the close conductor is configured to send a low level as the first close state signal to the out-of-band manager and the hot plug controller.
3. The apparatus of claim 1, wherein the closed conductor is also connected to ground; the close conductor is configured to send a high level as the second close state signal to the out-of-band manager and the hot plug controller.
4. The device of claim 1, wherein the out-of-band manager is configured to periodically display the in-place status to the outside world via an out-of-band channel after logging or updating the in-place status of a hot-plugged device.
5. The device of claim 1, wherein the hot plug controller is further configured to cause the computer to issue an alert for the hot plug device in response to receiving the first close status signal from the close conductor without receiving a live plugged device live signal from the backplane, and to cause the computer to issue an alert for the hot plug device in response to losing the live plugged device live signal received from the backplane without receiving the first close status signal from the close conductor.
6. The device of claim 1, wherein the hot-plug device is connected to a PCIe bus of the computer; the hot plug controller is configured to cause the computer to provide a PCIe connection having a maximum rate and a maximum bandwidth compatible with the hot plug device to the hot plug device in response to the hot plug device being stably in a fully inserted state.
7. The apparatus of claim 1, wherein the closed conductor has a first mechanical structure that switches on and off states; the first mechanical structure is provided with a first fool-proof structure which prevents the closing conductor from being conducted under the condition that the hot plug device is not in a full insertion state and/or prevents the hot plug device from being pulled out under the condition that the closing conductor is conducted.
8. The device according to claim 7, wherein a second mechanical structure corresponding to the first mechanical structure is further attached to the computer or the hot swap device, wherein the second mechanical structure has a second fool-proofing structure preventing the closing conductor from being conducted if the hot swap device is not in a fully plugged-in state and/or preventing the hot swap device from being unplugged if the closing conductor is already conducted.
9. The device of claim 1, wherein the in-place signal for a hot-plugged device is Ifdet #; the hot-plugged device is configured to first turn Ifdet # on to the computer in response to being plugged in, while finally turning Ifdet # off from the computer in response to the hot-plugged device being unplugged.
10. A computer, comprising:
a central processor connected to a PCIe bus;
a backplane carrying connectors of hot-pluggable devices and connected to the central processor;
a hot plug stabilization device connected to the central processor and the backplane, further comprising:
the closing conduction device is arranged on the hot plug device side and is configured to respond to the closing conduction device closing the hot plug device so as to enable the hot plug device to be stably in a fully inserted state and conduct to send out a first closing state signal, and respond to the closing conduction device not closing the hot plug device so as to enable the hot plug device not to be in the fully inserted state or to be pulled out and cut off to send out a second closing state signal;
an out-of-band manager connected to the close conductor and configured to selectively document or update an in-place status of a hot plug device in response to receiving the first close status signal or the second close status signal from the close conductor;
a hot plug controller connected to the close conductor and configured to power up the computer for the hot plug device in response to receiving the first close state signal from the close conductor in an instance in which the in-place signal for the hot plug device is received from the backplane, and to power down the computer for the hot plug device in response to receiving the second close state signal from the close conductor in an instance in which the in-place signal for the hot plug device is received from the backplane.
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| CN101123491B (en) * | 2007-09-21 | 2010-08-18 | 中兴通讯股份有限公司 | An implementation device and method for time synchronization of advanced telecom computer architecture |
| CN101551770B (en) * | 2009-05-07 | 2011-06-22 | 福建星网锐捷网络有限公司 | Hot plug testing device and method |
| CN102955733B (en) * | 2012-11-12 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of single-plate hot-plug detection method and device |
| US9721660B2 (en) * | 2014-10-24 | 2017-08-01 | Microsoft Technology Licensing, Llc | Configurable volatile memory without a dedicated power source for detecting a data save trigger condition |
| CN210534769U (en) * | 2019-10-22 | 2020-05-15 | 中科可控信息产业有限公司 | OCP network card hot plug device |
| CN110825679A (en) * | 2019-11-08 | 2020-02-21 | 苏州浪潮智能科技有限公司 | Backboard information acquisition method, equipment and storage medium |
| CN112463689B (en) * | 2020-11-30 | 2022-11-29 | 苏州浪潮智能科技有限公司 | OCP card hot plug device, method and computer readable storage medium |
| CN112631973A (en) * | 2020-12-30 | 2021-04-09 | 海光信息技术股份有限公司 | Hot plug control method and device for NVMe solid state disk and control mainboard |
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