High performance interconnect link layer

摘要

Transaction data is identified and a flit is generated to include three or more slots and a floating field to be used as an extension of any one of two or more of the slots. In another aspect, the flit is to include two or more slots, a payload, and a cyclic redundancy check (CRC) field to be encoded with a 16-bit CRC value generated based on the payload. The flit is sent over a serial data link to a device for processing, based at least in part on the three or more slots.

主权项

1. An apparatus comprising:
link layer logic to:
produce a sixteen bit cyclical redundancy check (CRC) value for at least a portion of a link layer flit; andencode a sixteen bit CRC field of the flit with the CRC value, wherein the flit comprises three slots, a first of the three slots is a 72-bit slot, a second of the three slots is a 70-bit slot, a third of the three slots is an 18-bit slot, and the flit further comprises a floating payload field capable of being used to extend one of the first and second slots; and transmission logic to send the flit to a receiver.