Mechanism to upgrade system capability without affecting service

• US 7,797,694 B2
• Filed: 09/19/2005
• Issued: 09/14/2010
• Est. Priority Date: 09/19/2005
• Status: Active Grant

• Current Assignee: Outdoor Wireless Networks LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Inventors: Cannon, Jeffrey J., Kremer, Michael, Schatz, Paul, Mitchell, William J., Hedin, John M., Sonbarse, Santosh K.
• Primary Examiner(s): Zhen; Wei Y
• Assistant Examiner(s): UNG, LANNY N
• Application Number:
  US11/229,893
• Publication Number:
  US 20070067763A1
• Time in Patent Office: 1,821 Days
• Field of Search: None
• US Class Current: 717/168
• CPC Class Codes: G06F 11/1433 during software upgrading
• CPC Class Codes: G06F 8/656 while running

Abstract

A method of upgrading the system capability of a communications network is provided. The method involves initiating a transfer of at least one set of upgraded system capability software machine-coded instructions to a host card, instructing the host card to begin an upgrade process, determining whether at least one set of system capability software machine-coded instructions on the host card is valid, and completing the transfer of at least one valid set of system capability software machine-coded instructions to the host card, wherein the system capability is upgraded without affecting operation of the network.

Claims

1. A method of upgrading system capability of a communications network, the method comprising:

initiating a transfer of at least one first set of system capability instructions from a first memory to a target processor;

determining whether the at least one first set of system capability instructions is valid prior to completing the transfer of the at least one first set of system capability instructions;

wherein determining whether the at least one first set of system capability instructions is valid comprises determining whether a header line of a first frame transferred from the first memory to the target processor is valid and the first frame transferred from the first memory to the target processor is a frame that was loaded last onto the first memory;

if the at least one first set of system capability instructions is determined to be valid, completing the transfer of the at least one first set of system capability instructions to the target processor; and

if the at least one first set of system capability instructions is not valid;

ceasing the transfer of the at least one first set of system capability instructions from the first memory to the target processor; and

transferring at least one second set of system capability instructions from a second memory to the target processor.

2. The method of claim 1, further comprising:

loading the at least one first set of system capability instructions onto the first memory; and

receiving instructions to perform a reset operation;

wherein the transfer of the at least one first set of system capability instructions from the first memory to the target processor is initiated upon receipt of the instructions to perform the reset operation.

3. The method of claim 1, further comprising:

loading the at least one first set of system capability instructions onto the first memory; and

receiving instructions to perform a power cycle operation;

wherein the transfer of the at least one first set of system capability instructions from the first memory to the target processor is initiated upon receipt of the instructions to perform the power cycle operation.

4. The method of claim 1, further comprising:

determining if the transfer of the at least one second set of system capability instructions was completed within a specified time frame that is less than an initialization time of a host card on which the target processor is located; and

if the transfer of the at least one second set of system capability instructions was not completed within the specified time frame, halting operation of the host card until a known good version of a set of system capability instructions is loaded into the target processor.

5. The method of claim 1, wherein the at least one second set of system capability instructions further comprises a set of instructions providing enough system capability to continue to operate the system.

6. The method of claim 1, wherein the at least one second set of system capability instructions further comprises a set of instructions with an equivalent capability to what the communication network had before initiating the transfer of the at least one first set of system capability instructions to the target processor.

7. A system capability upgrade module, the module comprising:

at least one primary program memory storage medium adapted to receive one or more first sets of system capability instructions;

at least one secondary program memory storage medium adapted to receive one or more second sets of system capability instructions;

a target processor, the target processor adapted to receive the system capability instructions from either the at least one primary or the at least one secondary program memory storage medium; and

a program memory switch;

wherein the program memory switch is configured to;

initiate a transfer of the one or more first sets of system capability instructions from the at least one primary program memory storage medium to the target processor;

determine if the one or more first sets of system capability instructions are valid prior to completing the transfer of the at least one or more first sets of system capability instructions to the target processor;

wherein the program memory switch determines whether the one or more first sets of system capability instructions are valid by determining whether a header line of a first frame transferred from the at least one primary program memory storage medium to the target processor is valid, and the first frame transferred from the at least one primary program memory storage medium to the target processor is a frame that was loaded last onto the at least one primary program memory storage medium;

complete the transfer of the one or more first sets of system capability instructions if the one or more first sets of system capability instructions are valid; and

if the one or more first sets of system capability instructions are not valid, the program memory switch is configured to;

cease the transfer of the one or more first sets of system capability instructions from the at least one primary program memory storage medium; and

transfer the one or more second sets of system capability instructions from the at least one secondary program memory storage medium to the target processor.

8. The module of claim 7, wherein the at least one primary program memory storage medium comprises one of a flash memory, a read only memory, an electrically erasable programmable read only memory, a one time programmable memory, and other electrical, magnetic or optical memory.

9. The module of claim 7, wherein the at least one secondary program memory storage medium comprises one of a flash memory, a read only memory, an electrically erasable programmable read only memory, a one time programmable memory, and other electrical, magnetic or optical memory.

10. The module of claim 7, wherein the one or more first sets of system capability instructions and the one or more second sets of system capability instructions are identical sets of system capability instructions.

11. The module of claim 7, wherein the one or more first sets of system capability instructions and the one or more second sets of system capability instructions are different sets of system capability instructions.

12. The module of claim 7, wherein the target processor comprises one of a field programmable gate array and a microprocessor.

13. The module of claim 7, wherein the program memory switch comprises one of a programmable logic device, a complex programmable logic device and a field programmable gate array.

14. A communications system, comprising:

a host card, wherein the host card includes one or more system capability upgrade modules;

a network card coupled to the one or more system capability upgrade modules over one or more transport mediums; and

a remote card coupled to the one or more system capability upgrade modules over one or more transport mediums;

wherein the one or more system capability upgrade modules are instructed by either the network card or the remote card to upgrade system capability;

wherein each of the one or more system capability upgrade modules comprises;

a program memory switch;

at least one primary program memory storage medium adapted to receive one or more first sets of system capability instructions;

at least one secondary program memory storage medium adapted to receive one or more second sets of system capability instructions; and

a target processor, the target processor adapted to receive the system capability instructions from either the at least one primary or the at least one secondary program memory storage medium;

wherein the program memory switch is configured to;

initiate a transfer of the one or more first sets of system capability instructions from the at least one primary program memory storage medium to the target processor;

determine if the one or more first sets of system capability instructions are valid prior to completing the transfer of the at least one or more first sets of system capability instructions to the target processor;

wherein the program memory switch determines whether the one or more first sets of system capability instructions are valid by determining whether a header line of a first frame transferred from the at least one primary program memory storage medium to the target processor is valid, and the first frame transferred from the at least one primary program memory storage medium to the target processor is a frame that was loaded last onto the at least one primary program memory storage medium;

complete the transfer of the one or more first sets of system capability instructions if the one or more first sets of system capability instructions are valid; and

if the one or more first sets of system capability instructions are not valid, the program memory switch is configured to;

cease the transfer of the one or more first sets of system capability instructions from the at least one primary program memory storage medium; and

transfer the one or more second sets of system capability instructions from the at least one secondary program memory storage medium to the target processor.

15. The system of claim 14, wherein the host card further comprises:

one or more connectors, wherein the one or more connectors communicate with the system capability upgrade module over one or more interface mediums.

16. The system of claim 15, wherein the one or more interface mediums includes at least one of a PCI-X interface, an ATCA interface, a PCI Express interface, a Gigabit Ethernet interface, a SCSI interface, a Rocket I/O interface, a UDP/IP link interface, a TCP/IP link interface, a Serial ATA interface, a CardBus interface, a high speed serial interface and a high speed parallel interface.

17. The system of claim 14, wherein the one or more transport mediums are one or more of twisted pair cable, optical fiber, millimeter wave, coaxial cable, and free space optics.

18. The system of claim 14, wherein the at least one primary program memory storage medium comprises one of a flash memory, a read only memory, an electrically erasable programmable read only memory, a one time programmable memory, and other electrical, magnetic or optical memory.

19. The system of claim 14, wherein the at least one secondary program memory storage medium comprises one of a flash memory, a read only memory, an electrically erasable programmable read only memory, a one time programmable memory, and other electrical, magnetic or optical memory.

20. The system of claim 14, wherein the target processor comprises one of a field programmable gate array and a microprocessor.

21. The system of claim 14, wherein the one or more first sets of system capability instructions and the one or more second sets of system capability instructions are identical sets of system capability instructions.

22. The module of claim 14, wherein the one or more first sets of system capability instructions and the one or more second sets of system capability instructions are different sets of software machine-coded instructions.

23. The system of claim 14, wherein the program memory switch comprises one of a programmable logic device, a complex programmable logic device and a field programmable gate array.

24. An apparatus for upgrading the system capability of a communications network, the apparatus comprising:

means for initiating a transfer of at least one first set of system capability instructions from a first memory to a target processor;

means for determining whether a header line of a first frame of the at least one first set of system capability instructions transferred from the first memory to the target processor is valid prior to completing the transfer of the at least one first set of system capability instructions, wherein the first frame transferred from the first memory to the target processor is a frame that was loaded last onto the first memory;

means for completing the transfer of the at least one first set of system capability instructions to the target processor if the at least one first set of system capability instructions is determined to be valid; and

if the at least one first set of system capability instructions is not valid;

means for ceasing the transfer of the at least one first set of system capability instructions from the first memory to the target processor; and

means for transferring at least one second set of system capability instructions from a second memory to the target processor.

25. The apparatus of claim 24, further comprising:

means for loading the at least one first set of system capability instructions onto the first memory; and

means for receiving instructions to perform a reset operation;

wherein the transfer of the at least one first set of system capability instructions from the first memory to the target processor is initiated upon receipt of the instructions to perform the reset operation.

26. The apparatus of claim 24, further comprising:

means for loading the at least one first set of system capability instructions onto the first memory; and

means for receiving instructions to perform a power cycle operation;

wherein the transfer of the at least one first set of system capability instructions from the first memory to the target processor is initiated upon receipt of the instructions to perform the power cycle operation.

27. The apparatus of claim 24, further comprising:

means for determining if the transfer of the at least one second set of system capability instructions was completed within a specified time frame that is less than an initialization time of a host card on which the target processor is located; and

means for halting operation of the host card until a known good version of a set of system capability instructions is loaded into the target processor if the transfer of the at least one second set of system capability instructions was not completed within the specified time frame.

28. The apparatus of claim 24, wherein the at least one second set of system capability instructions further comprises a set of instructions providing enough system capability to continue to operate the system.

29. The apparatus of claim 24, wherein the at least one second set of system capability instructions further comprises a set of instructions with an equivalent capability to what the communication network had before initiating the transfer of the at least one first set of system capability instructions to the target processor.