Switch-management agent trap scheme in an infiniband-architecture switch
An infiniband architecture switch, includes a plurality of ports each configured to receive switch parameters, identify at least one data-packet error condition responsive to the switch parameters, generate a trap-initialization signal when the at least one data-packet error condition matches a trap-error condition, and a switch manager configured to receive the trap-initialization signal. A method for generating a switch manager control signal includes identifying at least one data-packet error condition in an infiniband architecture switch, determining when the at least one data-packet error condition matches a trap-error condition, generating a trap-initialization signal responsive to the trap-error condition, and forwarding the trap-initialization signal to a switch manager.
1. An infiniband architecture switch, comprising:
a plurality of ports each configured to receive switch parameters, identify at least one data-packet error condition responsive to the switch parameters, and generate a trap-initialization signal when the at least one data-packet error condition matches a trap-error condition; and
a switch manager configured to receive the trap-initialization signal.
2. The switch of claim 1 , wherein each of the ports comprises an error checker.
3. The switch of claim 2 , wherein each of the plurality of ports further comprises:
an error recorder communicatively coupled to the error checker wherein the error recorder stores a representation of the data-packet error conditions.
4. The switch of claim 1 , wherein switch parameters originate in a physical layer (PHY) of each of the ports.
5. The switch of claim 1 , wherein switch parameters originate in the switch manager.
6. The switch of claim 1 , wherein switch parameters originate in an arbiter.
7. The switch of claim 1 , wherein the switch manager comprises trap-process logic configured to initiate a port-error information request.
8. The switch of claim 7 , wherein the port-error information request is communicated to the port via an internal access loop.
9. The switch of claim 7 , wherein the port responds to the port-error information request by generating a representation of the trap-error condition.
10. The switch of claim 9 , wherein the port forwards the representation of the trap-error condition via the internal access loop.
11. The switch of claim 10 , wherein the switch manager is configured to store the representation of the trap-error condition.
12. The switch of claim 11 , wherein the switch manager forwards the representation of the trap-error condition in response to a request issued by a subnet management agent.
13. A method for generating a switch manager control signal, comprising:
identifying at least one data-packet error condition in an infiniband architecture switch;
determining when the at least one data-packet error condition matches a trap-error condition;
generating a trap initialization signal responsive to the trap-error condition; and
forwarding the trap initialization signal to a switch manager.
14. The method of claim 13 , wherein forwarding comprises applying the trap-initialization signal to a port dedicated input of the switch manager.
15. The method of claim 13 , wherein determining comprises applying indicia of a data-packet error condition to trap-error condition logic.