Reordering unrelated transactions from an ordered interface

A method comprising:

• receiving first and second ordered sequences of transactions from first and second devices, respectively;
• adding a first sequence identifier to each transaction in the first sequence;
• combining the first and second ordered sequences of transactions with respective identifiers into a third ordered sequence of transactions;
• and
• sending the third ordered sequence of transactions over an interface that follows ordering rules.

Apparatus comprising

• a port configured to receive first and second ordered sequences of transactions from first and second devices, respectively;
• an identifier adding component configured to add a first sequence identifier to each transaction in the first sequence and to add a second sequence identifier to each transaction in the second sequence, and to combine the first and second ordered sequences of transactions with their respective identifiers into a third ordered sequence of transactions;
• and
• a router configured to separate the transactions in the third ordered sequence into two ordered queues of transactions based on the sequence identifiers associated with the transactions.

Apparatus comprising:

• input/output devices, each of which sends an ordered stream of transactions;
• a circuit configured to combine the ordered streams of transactions sent from the input/output devices into a combined ordered stream of transactions, the circuit adding sequence identifiers to each transaction to identify the origin of the transaction;
• and
• a router that routes the transactions in the combined ordered stream to ordered queues based on the sequence identifiers associated with the transactions.