AVOIDING NON-POSTED REQUEST DEADLOCKS IN DEVICES
First Claim
Patent Images
1. A method of controlling processing within a device of a communications environment, the method comprising:
- determining by a requester of the device whether a port of the device is able to make forward progress on inbound requests;
based on determining forward progress is blocked on the port, holding sending a request to the port; and
based on determining the port is making forward progress, sending the request to the port.
0 Assignments
0 Petitions
Accused Products
Abstract
Processing within a device is controlled in order to avoid a deadlock situation. A local request engine of the device determines prior to making a request whether the port of the device that is to service the request is making forward progress in processing other requests. If forward progress is being made, then the request is forwarded to the port. Otherwise, the request is held. This avoids a deadlock situation and allows the device to remain operative even in partial recovery situations.
-
Citations
10 Claims
-
1. A method of controlling processing within a device of a communications environment, the method comprising:
-
determining by a requester of the device whether a port of the device is able to make forward progress on inbound requests; based on determining forward progress is blocked on the port, holding sending a request to the port; and based on determining the port is making forward progress, sending the request to the port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification