Method and apparatus for backup communication
Embodiments of the present disclosure relate to a method and an apparatus for backup communication. The method comprises: detecting a failure of a management interface between a processor and a baseboard management controller; in response to detecting the failure of the management interface, performing backup communication between the processor and the baseboard management controller using a control interface, wherein the baseboard management controller can obtain a physical parameter of the processor via the control interface; and transmitting a packet between the processor and the baseboard management controller via the control interface.
1. A method for backup communication, the method comprising:
detecting a failure of a management interface between a processor and a baseboard management controller (BMC);
in response to detecting the failure of the management interface, performing backup communication between the processor and the BMC using a control interface, the BMC being enabled to obtain a physical parameter of the processor via the control interface; and
transmitting a message between the processor and the BMC via the control interface, the message including a communication type code, a function code and a response code, the communication type code indicating a type of the backup communication, the function code indicating a function to be launched, and the response code indicating a response state of the backup communication.
2. The method according to claim 1 , wherein detecting the failure of the management interface includes determining that a length of a time interval between the processor and the BMC exceeds a threshold length.
3. The method according to claim 2 , wherein the backup communication is bi-directional.
4. The method according to claim 2 , wherein the management interface is an intelligent platform management interface (IPMI).
5. The method according to claim 4 , wherein the control interface is a platform environment control interface (PECI).
6. The method according to claim 1 , wherein the type of the backup communication includes at least one of:
transmitting a request to the BMC;
receiving a response from the BMC;
receiving a request from the BMC; and
responding to a request received from the BMC.
7. The method according to claim 1 , wherein the function to be launched includes at least one of:
triggering a self-recovery of the BMC;
retrying communication based on the management interface;
requesting a service of the processor; and
obtaining a log of the BMC.
8. The method according to claim 1 , wherein the performing backup communication between the processor and the BMC includes:
in response to detecting the failure of the management interface, transmitting a failure message to a message store; and
enabling the BMC to detect whether the failure message exists in the message store.
9. The method according to claim 1 , wherein the transmitting the message includes:
transmitting a self-recovery request from the processor to the BMC via the control interface so as to trigger a self-recovery of the BMC.
10. The method according to claim 9 , wherein the triggering a self-recovery of the BMC includes resetting a communication channel that is based on the management interface.
11. The method according to claim 9 , wherein the transmitting the message further includes:
before transmitting the self-recovery request from the processor to the BMC via the control interface, obtaining a log of the BMC from the BMC via the control interface.
12. The method according to claim 9 , wherein the transmitting the message further includes:
after transmitting the self-recovery request from the processor to the BMC via the control interface, receiving a retry request from the BMC via the control interface to retry the communication channel that is based on the management interface.
13. The method according to claim 12 , further comprising:
in response to the failure being repaired, recovering the communication channel that is based on the management interface between the processor and the BMC.
14. An apparatus for backup communication, comprising a controller constructed and arranged to:
detect a failure of a management interface between a processor and a baseboard management controller (BMC);
in response to detecting the failure of the management interface, perform backup communication between the processor and the BMC using a control interface, the BMC being enabled to obtain a physical parameter of the processor via the control interface; and
transmit a message between the processor and the BMC via the control interface, the message including a communication type code, a function code and a response code, and the communication type code indicating a type of the backup communication, the function code indicating a function to be launched, and the response code indicates a response state of the backup communication.
15. The apparatus according to claim 14 , wherein the management interface is an intelligent platform management interface (IPMI), and wherein the control interface is a platform environment control interface (PECI).
16. The apparatus according to claim 14 , wherein the type of the backup communication includes at least one of:
transmitting a request to the BMC; receiving a response from the BMC;
receiving a request from the BMC; and
responding to a request received from the BMC.
17. The apparatus according to claim 14 , wherein the function to be launched includes at least one of:
triggering a self-recovery of the BMC;
retrying communication based on the management interface;
requesting a service of the processor; and
obtaining a log of the BMC.
18. The apparatus according to claim 14 , wherein the controller is further constructed and arranged to:
in response to detecting the failure of the management interface, transmit a failure message to a message store, and
enable the BMC to detect whether the failure message exists in the message store.
19. The apparatus according to claim 14 , wherein the controller constructed and arranged to transmit the message is further constructed and arranged to:
transmit a self-recovery request from the processor to the BMC via the control interface so as to trigger a self-recovery of the BMC.
20. A computer program product including a set of non-transitory, computer-readable media having instructions which, when executed by control circuitry, cause the control circuitry to perform a method for backup communication, the method comprising:
detecting a failure of a management interface between a processor and a baseboard management controller (BMC), including;
in response to detecting the failure of the management interface, performing backup communication between the processor and the BMC using a control interface, the BMC being enabled to obtain a physical parameter of the processor via the control interface; and
transmitting a message between the processor and the BMC via the control interface, the message including a communication type code, a function code and a response code, the communication type code indicating a type of the backup communication, the function code indicating a function to be launched, and the response code indicating a response state of the backup communication.