Autonomous integrated translator for local bus operations
An autonomous and integrated translator for local server bus operations is provided. The translator comprises encapsulation logic and decapsulation logic. The encapsulation logic encapsulates transactions for local server bus operations with fabric-switched header and trailer information and the decapsulation logic decapsulates the header and trailer information.
1 . An autonomous and integrated translator for server bus operations, the translator comprising:
encapsulation logic; and
decapsulation logic,
wherein the encapsulation logic encapsulates transactions for server bus operations with header and trailer information for fabric-switched packets and wherein the decapsulation logic decapsulates the header and trailer information from received fabric-switched packets for bus transactions; and
a short-channel, high-lane count interconnect for receiving and transmitting unencapsulated transactions for server bus operations and long-channel, low-lane count interconnect for receiving and transmitting encapsulated fabric-switched packets.
2 . The translator of claim 1 wherein the transactions for server bus operations are PCIe transactions.
3 . The translator of claim 1 wherein the transactions for server bus operations are CXL transactions.
4 . The translator of claim 1 wherein the fabric-switched packets are OPA packets.
5 . A host fabric adapter, the host fabric adapter comprising:
one or more fabric ports;
a local server bus, and
a translator including encapsulation logic and decapsulation logic, wherein the encapsulation logic encapsulates transactions for server bus operations with fabric-switched packet header and trailer information and wherein the decapsulation logic decapsulates the header and trailer information from received fabric-switched packets for local bus transactions; and
a short-channel, high-lane count interconnect for receiving and transmitting unencapsulated transactions for server bus operations and long-channel, low-lane count interconnect for receiving and transmitting encapsulated fabric-switched packets.
6 . The host fabric adapter of claim 5 wherein the local server bus comprises a PCIe bus.
7 . The host fabric adapter of claim 5 wherein the local server bus comprises a CXL bus.
8 . The host fabric adapter of claim 5 further comprising error correction logic.
9 . The host fabric adapter of claim 5 wherein the error correction logic further comprises forward error correction logic.
10 . The host fabric adapter of claim 5 wherein the error correction logic comprises link-level replay logic.