CN113626230B - Method and system for preventing SAS card from losing disc and locking card - Google Patents
Method and system for preventing SAS card from losing disc and locking card Download PDFInfo
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- CN113626230B CN113626230B CN202110728188.1A CN202110728188A CN113626230B CN 113626230 B CN113626230 B CN 113626230B CN 202110728188 A CN202110728188 A CN 202110728188A CN 113626230 B CN113626230 B CN 113626230B
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000003111 delayed effect Effects 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
Abstract
The application discloses a method and a system for avoiding disc loss and card locking of an SAS card, wherein the method comprises the following steps: identifying the SAS card to be tested according to the ID information of the SAS card to be tested; addressing a PCI configuration space of the SAS card register to be tested; configuring the PCI configuration space according to the PCIE3.0 protocol; reading the value of an SAS card register through the PCI configuration space; in the process of configuring the PCI configuration space, when the configuration fails, the delay disabling function of the SAS card register is logged out according to the value of the SAS card register. The system comprises: the system comprises an SAS card identification module to be tested, an addressing module, a configuration module, a register value reading module and a control module. Through this application, can realize avoiding under the circumstances of SAS card losing a set lock card phenomenon, avoid the loaded down with trivial details operation of hardware circuit change, be favorable to improving failure handling efficiency greatly.
Description
Technical Field
The present application relates to the field of fault handling technology for PCIe (peripheral component interconnect express, a high-speed serial computer expansion bus standard) devices, and in particular, to a method and system for preventing SAS (Serial Attached SCSI, serial attached SCSI, i.e., small Computer System Interface, small computer system interface) cards from losing a disk and locking the card.
Background
With the development of internet data centers and cloud computing technologies, the application range of servers based on CPU platforms such as Feiteng and Loongson is wider and wider. At the same time, the performance requirements for these server firmware BIOS (Basic Input Output System ) are also increasing. For example: when the SAS card is inserted into a PCIe slot of a server and connected with a hard disk for performing FIO (multithreaded IO generating tool) pressure test, the phenomenon that the SAS card is lost and locked possibly occurs, so that a CPU enters a locking state, the performance of the hard disk is affected, and the performance of the SAS card and the server is further affected. Therefore, how to avoid the SAS card from losing the disc and locking is an important technical problem.
At present, a method for avoiding the disc loss and locking of the SAS card generally changes a hardware circuit, and particularly, two hardware changing modes are generally adopted. Another is to change the components on the hardware lines, such as to replace some high-specification components.
However, in the current method for avoiding the disc-losing and locking of the SAS card, because the hardware circuit is changed, the circuit structure or the components are required to be replaced, and the method for changing the hardware circuit is complicated, so that the fault processing efficiency is lower.
Disclosure of Invention
The application provides a method and a system for avoiding the disc loss and the card locking of an SAS card, which are used for solving the problem of lower fault processing efficiency caused by the method for avoiding the disc loss and the card locking of the SAS card in the prior art.
In order to solve the technical problems, the embodiment of the application discloses the following technical scheme:
a method for avoiding disc loss and card locking of an SAS card, the method being applied to an ARM server, the method comprising:
identifying the SAS card to be tested according to the ID information of the SAS card to be tested;
addressing a PCI configuration space of the SAS card register to be tested;
configuring the PCI configuration space according to the PCIE3.0 protocol;
reading the value of an SAS card register through the PCI configuration space;
in the process of configuring the PCI configuration space, when the configuration fails, the delay disabling function of the SAS card register is logged out according to the value of the SAS card register.
Optionally, the ID information includes: the SAS card to be tested is used as the device ID information of the PCIE device and the ID information of the SAS card provider to be tested.
Optionally, the method for addressing the PCI configuration space of the SAS card register to be tested includes:
determining a delay register of the SAS card to be tested;
and determining a base address for controlling delayed card locking enabling in the SAS card register to be tested according to the delay register.
Optionally, in the process of configuring the PCI configuration space, when the configuration fails, the function of canceling the delay disabling register according to the value of the SAS card register includes:
writing delay time in a delay register of the SAS card;
configuring a value of a PCI configuration space of an SAS register according to the set limit value;
judging whether the delay disabling function of the SAS card register is in an available state when the set limit value is reached;
if yes, judging that the value configuration of the PCI configuration space is successful;
if not, judging that the value configuration of the PCI configuration space fails;
when the configuration fails, the delay disabling function of the SAS card register is logged out;
judging whether the value configuration of the PCI configuration space is successful or not again;
if not, the value of the PCI configuration space of the SAS register is configured again according to the set limit value.
Optionally, the set limit value is determined according to the service performance of the SAS card to be tested and the performance of the server.
A system for avoiding card loss and card locking of SAS cards, the system being applied to an ARM server, the system comprising:
the SAS card to be tested is used for identifying the SAS card to be tested according to the ID information of the SAS card to be tested;
the addressing module is used for addressing the PCI configuration space of the SAS card register to be tested;
the configuration module is used for configuring the PCI configuration space according to the PCIE3.0 protocol;
the register value reading module is used for reading the value of the SAS card register through the PCI configuration space;
and the control module is used for logging out the delay disabling function of the SAS card register according to the value of the SAS card register when the configuration fails in the process of configuring the PCI configuration space.
Optionally, the addressing module includes:
the delay register determining unit is used for determining a delay register of the SAS card to be tested;
and the base address determining unit is used for determining a base address for controlling the delayed card locking enabling in the SAS card register to be tested according to the delayed register.
Optionally, the control module includes:
the delay time writing unit is used for writing delay time in the SAS card delay register;
a configuration unit for configuring values of a PCI configuration space of the SAS register according to the set limit value;
the judging unit is used for judging whether the delay disabling function of the SAS card register is in an available state when the set limit value is reached, if so, judging that the value configuration of the PCI configuration space is successful, and if not, judging that the value configuration of the PCI configuration space is failed;
the cancellation unit is used for canceling the delay disabling function of the SAS card register when the configuration fails;
the judging unit is used for judging whether the value configuration of the PCI configuration space is successful or not again after the delay disabling function of the SAS card register is canceled;
the configuration unit is configured to reconfigure the value of the SAS register PCI configuration space according to the set limit value when the configuration of the value of the PCI configuration space fails again.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
the method is mainly applied to an ARM server, firstly, the SAS card to be detected is identified according to the ID information of the SAS card to be detected, secondly, a PCI configuration space of a register of the SAS card to be detected is addressed, and then the PCI configuration space is configured according to a PCIE3.0 protocol; reading the value of the SAS card register through the PCI configuration space; and finally, in the process of configuring the PCI configuration space, when the configuration fails, the delay disabling function of the SAS card register is logged out according to the value of the SAS card register. In the embodiment, a software method is adopted, after the BIOS identifies the SAS card to be tested, and the phenomenon of losing discs and locking cards in the using process of the SAS card is avoided by a method for configuring PCI configuration space writing values of the SAS card. The software method can avoid complicated operation of hardware circuit modification, can meet the performance requirement of the SAS card when the server is used, and can greatly improve the fault processing efficiency.
The application also provides a system for avoiding the disc loss and the card locking of the SAS card, which mainly comprises: the system comprises an SAS card identification module to be tested, an addressing module, a configuration module, a register value reading module and a control module. After the SAS card to be tested is identified by the SAS card identification module to be tested, the PCI configuration space of the SAS card register to be tested is addressed by the addressing module, the PCI configuration space is configured by the configuration module according to PCIE3.0 protocol, the register value is read to the value of the SAS card register by the register value reading module, and finally, when the configuration of the PCI configuration space fails, the control module is utilized to cancel the time delay disabling function of the SAS card register according to the value of the SAS card register, so that the SAS card avoids overtime triggering disabling function when the communication with the CPU is delayed, and the problem of losing disc locking of the SAS card is avoided. In addition, the system does not relate to hardware circuit change, so that complicated operation of hardware circuit change is avoided, and meanwhile, the performance requirement of the SAS card in use of a server can be met, and therefore, the fault processing efficiency can be greatly improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a flowchart of a method for avoiding disc loss and card locking of an SAS card according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a system for preventing a SAS card from losing a disc and locking the card according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions in the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
For a better understanding of the present application, embodiments of the present application are explained in detail below with reference to the drawings.
Example 1
Referring to fig. 1, fig. 1 is a flowchart of a method for avoiding a SAS card from losing a disc and locking a card according to an embodiment of the present application. As can be seen from fig. 2, the method for preventing the SAS card from losing the disc and locking the card in this embodiment mainly includes the following steps:
s1: and identifying the SAS card to be tested according to the ID information of the SAS card to be tested.
The ID information in the present embodiment includes: device ID information and vendor ID information. The device ID information is the device ID information of the SAS card to be tested as PCIE device, and the ID information of the vendor is the ID information of the SAS card to be tested vendor. According to the method and the device for identifying the SAS card, the equipment ID information and the supplier ID information of the SAS card are simultaneously identified, the situation that different manufacturers use the same main control chip can be avoided, and accuracy of identifying the SAS card to be detected is improved.
S2: addressing the PCI configuration space of the SAS card register to be tested.
Specifically, step S2 includes the following procedure:
s21: and determining a delay register of the SAS card to be tested.
S22: and determining a base address for controlling delayed card locking enabling in the SAS card register to be tested according to the delayed register.
With continued reference to fig. 1, after addressing the PCI configuration space of the SAS card register to be tested, step S3 is performed: the PCI configuration space is configured according to the PCIE3.0 protocol.
The present embodiment may configure the PCI configuration space with the BIOS.
S4: reading the value of the SAS card register through the PCI configuration space.
S5: in the process of configuring the PCI configuration space, when configuration fails, the delay disabling function of the SAS card register is logged out according to the value of the SAS card register.
Specifically, step S5 includes the following processes:
s51: the delay time is written in a delay register of the SAS card.
By writing the delay time in the delay register of the SAS card, delay configuration can be achieved.
S52: and configuring the value of the PCI configuration space of the SAS register according to the set limit value.
The limit value set in this embodiment may be determined according to the performance of the SAS card to be tested and the performance of the server.
S53: and judging whether the delay disabling function of the SAS card register is in an available state when the set limit value is reached.
If the delay disable function of the SAS card register is in an available state, step S54 is performed: and judging that the value configuration of the PCI configuration space is successful.
At this time, the BIOS can effectively avoid the problem of losing discs and locking the SAS card by successfully configuring the register space of the SAS card, thereby ensuring that the problem of losing discs and locking the SAS card is not caused when the ARM server uses the SAS card.
If the delay disable function of the SAS card register is in an unavailable state, step S55 is executed: and judging that the value configuration of the PCI configuration space fails.
When the configuration fails, step S56 is executed: and the delay disabling function of the SAS card register is logged out.
The function of disabling the delay is logged off, and the phenomenon of self-locking of the SAS card caused by the fact that the delay register of the SAS card does not receive the message for a long time can be effectively avoided. If the delay disable function of the SAS card register cannot be canceled at this time, the process returns to step S52 to reconfigure the SAS card register.
The delay disabling function of the SAS card register is logged out, and the step S53 is returned to: again, it is determined whether the value configuration for the PCI configuration space was successful.
If the value configuration of the PCI configuration space fails again, step S52 is performed: and configuring the value of the PCI configuration space of the SAS register according to the set limit value.
If the configuration is successful in the reconfiguration, the problem of losing discs and self-locking of the SAS card can be effectively avoided.
In practical application, the method for avoiding the disc loss and the card locking of the SAS card in the embodiment is exemplified as follows:
1) The SAS card is inserted into a PCIE slot of the server, the SAS card is connected with the hard disk, and the server is powered on;
2) The BIOS system of the ARM server recognizes two ID information of the SAS card to be tested: vendor ID information and device ID information;
3) The system of BIOS can address the position space of the delay register of SAS card, and can configure the value of the register;
4) BIOS configures PCI configuration space of SAS card according to PCIE3.0 protocol;
5) The BIOS reads the value of the SAS card register timeout disable register through the PCI configuration space.
Firstly, writing the time of delay; secondly, according to the limit value required by the service performance attribute server of the SAS card in use, the value of the configuration space of the corresponding register is configured; BIOS inquires whether the overtime register of the SAS card register is in an available state, namely whether the configuration is successful; after the set limit delay is reached, if the configuration is not successful, the register which is forbidden by the delay of the SAS card needs to be configured to cancel the function, namely the register function forbidden by the delay is canceled, and the SAS card delay register does not receive information for a long time when the handshake time is too long, so that the card locking phenomenon can occur. If the delay function cannot be logged out, returning to the step 3) to reconfigure the register of the SAS card;
6) The BIOS system disables the functional register space by configuring the SAS card latency.
The delay limit is still invalid by the delay configuration of the write value, and the function is forbidden at the moment, so that the SAS card cannot encounter the overtime triggering forbidden function caused by handshake communication delay with the CPU, and the problem of losing discs and self-locking of the SAS card cannot be caused.
Example two
Referring to fig. 2 on the basis of the embodiment shown in fig. 1, fig. 2 is a schematic structural diagram of a system for avoiding card loss and card locking of an SAS card according to an embodiment of the present application.
As can be seen from fig. 2, the system for preventing the SAS card from losing the disc and locking the card in this embodiment mainly includes: the system comprises an SAS card identification module to be tested, an addressing module, a configuration module, a register value reading module and a control module. The system comprises a SAS card to be tested, a SAS card identification module to be tested, a data processing module and a data processing module, wherein the SAS card to be tested is used for identifying the SAS card to be tested according to the ID information of the SAS card to be tested; the addressing module is used for addressing the PCI configuration space of the SAS card register to be tested; the configuration module is used for configuring the PCI configuration space according to the PCIE3.0 protocol; the register value reading module is used for reading the value of the SAS card register through the PCI configuration space; and the control module is used for logging out the delay disabling function of the SAS card register according to the value of the SAS card register when the configuration fails in the process of configuring the PCI configuration space.
Wherein the addressing module comprises: a delay register determining unit and a base address determining unit. The delay register determining unit is used for determining a delay register of the SAS card to be tested; and the base address determining unit is used for determining a base address for controlling the delayed card locking enabling in the SAS card register to be tested according to the delayed register.
The control module comprises: the device comprises a delay time writing unit, a configuration unit, a judging unit and a logout unit. The delay time writing unit is used for writing delay time in the SAS card delay register; a configuration unit for configuring values of a PCI configuration space of the SAS register according to the set limit value; the judging unit is used for judging whether the delay disabling function of the SAS card register is in an available state when the set limit value is reached, if so, judging that the value configuration of the PCI configuration space is successful, and if not, judging that the value configuration of the PCI configuration space is failed; the cancellation unit is used for canceling the delay disabling function of the SAS card register when the configuration fails; the judging unit is used for judging whether the value configuration of the PCI configuration space is successful or not again after the delay disabling function of the SAS card register is canceled; and the configuration unit is used for configuring the value of the PCI configuration space of the SAS register according to the set limit value when the configuration of the value of the PCI configuration space fails again.
The working principle and working method of the system for avoiding the disc loss and locking of the SAS card in this embodiment are already described in detail in the embodiment shown in fig. 1, and are not described here again.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A method for preventing a SAS card from losing a disc and locking the card, wherein the method is applied to an ARM server, and the method comprises the following steps:
identifying the SAS card to be tested according to the ID information of the SAS card to be tested;
addressing a PCI configuration space of the SAS card register to be tested;
configuring the PCI configuration space according to the PCIE3.0 protocol;
reading the value of an SAS card register through the PCI configuration space;
in the process of configuring the PCI configuration space, when configuration fails, the delay disabling function of the SAS card register is logged out according to the value of the SAS card register;
in the process of configuring the PCI configuration space, when the configuration fails, the function of canceling the delay disabling register according to the value of the SAS card register comprises the following steps:
writing delay time in a delay register of the SAS card;
configuring a value of a PCI configuration space of an SAS register according to the set limit value;
judging whether the delay disabling function of the SAS card register is in an available state when the set limit value is reached;
if yes, judging that the value configuration of the PCI configuration space is successful;
if not, judging that the value configuration of the PCI configuration space fails;
when the configuration fails, the delay disabling function of the SAS card register is logged out;
judging whether the value configuration of the PCI configuration space is successful or not again;
if not, the value of the PCI configuration space of the SAS register is configured again according to the set limit value.
2. The method for preventing a SAS card from losing a disc and locking a card according to claim 1, wherein the ID information comprises: the SAS card to be tested is used as the device ID information of the PCIE device and the ID information of the SAS card provider to be tested.
3. The method of claim 1, wherein the method of addressing the PCI configuration space of the SAS card register under test comprises:
determining a delay register of the SAS card to be tested;
and determining a base address for controlling delayed card locking enabling in the SAS card register to be tested according to the delay register.
4. The method for preventing a SAS card from being lost and locked according to claim 1, wherein the set limit value is determined according to the usage performance of the SAS card to be tested and the performance of the server.
5. A system for avoiding card loss and card locking of SAS cards, wherein the system is applied to an ARM server, the system comprising:
the SAS card to be tested is used for identifying the SAS card to be tested according to the ID information of the SAS card to be tested;
the addressing module is used for addressing the PCI configuration space of the SAS card register to be tested;
the configuration module is used for configuring the PCI configuration space according to the PCIE3.0 protocol;
the register value reading module is used for reading the value of the SAS card register through the PCI configuration space;
the control module is used for logging out the delay disabling function of the SAS card register according to the value of the SAS card register when configuration fails in the process of configuring the PCI configuration space;
the control module includes:
the delay time writing unit is used for writing delay time in the SAS card delay register;
a configuration unit for configuring values of a PCI configuration space of the SAS register according to the set limit value;
the judging unit is used for judging whether the delay disabling function of the SAS card register is in an available state when the set limit value is reached, if so, judging that the value configuration of the PCI configuration space is successful, and if not, judging that the value configuration of the PCI configuration space is failed;
the cancellation unit is used for canceling the delay disabling function of the SAS card register when the configuration fails;
the judging unit is used for judging whether the value configuration of the PCI configuration space is successful or not again after the delay disabling function of the SAS card register is canceled;
the configuration unit is configured to reconfigure the value of the SAS register PCI configuration space according to the set limit value when the configuration of the value of the PCI configuration space fails again.
6. The system for preventing a SAS card from losing a disc and locking a card of claim 5 wherein the addressing module comprises:
the delay register determining unit is used for determining a delay register of the SAS card to be tested;
and the base address determining unit is used for determining a base address for controlling the delayed card locking enabling in the SAS card register to be tested according to the delayed register.
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| CN207251767U (en) * | 2017-08-18 | 2018-04-17 | 江苏北泰电气设备有限公司 | Power distribution room Internet of Things video system |
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| US10691470B2 (en) * | 2015-06-18 | 2020-06-23 | Kenneth Mark Woog | Personal computer system with remotely-configured hardware-enforced usage limits |
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| CN1655557A (en) * | 2005-02-25 | 2005-08-17 | 上海高智软件系统有限公司 | Communication equipment for home position register |
| CN101778375A (en) * | 2009-12-25 | 2010-07-14 | 中兴通讯股份有限公司 | Method for managing terminal lock card/lock network, communication system and terminal |
| CN207251767U (en) * | 2017-08-18 | 2018-04-17 | 江苏北泰电气设备有限公司 | Power distribution room Internet of Things video system |
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