US 11,113,219 B2 · Protocol data unit end handling with fractional data alignment and arbitration fairness

Abstract

In at least one embodiment, a method for handling data units in a multi-user system includes granting a shared resource to a user of a plurality of users for a transaction associated with an entry of a transaction data structure. The method includes determining whether the transaction stored last partial data of a data unit associated with the user in an alignment register associated with the user. The method includes asserting a request for arbitration of a plurality of transactions associated with the plurality of users. The request is asserted for an additional transaction associated with the entry in response to determining that the transaction stored the last partial data in the alignment register. The method may include flushing the last partial data from the alignment register to a target memory in response to detecting an additional grant of the shared resource to the user for the additional transaction.

Claims20

Dependent claims

A method for handling data units in a multi-user system comprising:

granting a shared resource to a user of a plurality of users for a transaction associated with an entry of a transaction data structure;
determining whether the transaction stored last partial data of a data unit associated with the user in an alignment register associated with the user;
and
asserting a request for arbitration of a plurality of transactions associated with the plurality of users, the request being asserted for an additional transaction associated with the entry in response to determining that the transaction stored the last partial data in the alignment register.

1 more element

A multi-user system comprising:

a source memory configured to store unaligned data units;
a target memory configured to store aligned data units;
merge and alignment logic for each of a plurality of users of the multi-user system;
a transaction data structure configured to store entries corresponding to transactions associated with unaligned data units stored in the source memory;
an arbiter control circuit responsive to a request for arbitration of transactions associated with valid entries in the transaction data structure to identify a winning transaction for access to the target memory;
and
a data unit end handler circuit for each of the plurality of users, the data unit end handler circuit being configured to assert a second request for arbitration in response to detecting last partial data of a data unit in the merge and alignment logic associated with a corresponding user of the plurality of users being associated with the winning transaction.

4 more elements

Dependencies are inferred from the claim text.

Protocol data unit end handling with fractional data alignment and arbitration fairness

Life of this patent

Protocol data unit end handling with fractional data alignment and arbitration fairness

Life of this patent

Abstract

Claims20