On 11/6/23 4:32 PM, Stanislav Fomichev wrote: >> The concise notification API returns tokens as a range for >> compression, encoding as two 32-bit unsigned integers start + length. >> It allows for even further batching by returning multiple such ranges >> in a single call. > > Tangential: should tokens be u64? Otherwise we can't have more than > 4gb unacknowledged. Or that's a reasonable constraint? > Was thinking the same and with bits reserved for a dmabuf id to allow multiple dmabufs in a single rx queue (future extension, but build the capability in now). e.g., something like a 37b offset (128GB dmabuf size), 19b length (large GRO), 8b dmabuf id (lots of dmabufs to a queue).
