公开(公告)号：US10884968B2

公开(公告)日：2021-01-05

申请号：US16366496

申请日：2019-03-27

Applicant: Intel Corporation

Inventor： Matthew J. Adiletta ,  Bradley Burres ,  Duane Galbi ,  Amit Kumar ,  Yadong Li ,  Salma Mirza ,  Jose Niell ,  Thomas E. Willis ,  William Duggan

IPC: G06F13/42 ,  G06F8/60

Abstract: Technologies for flexible I/O protocol acceleration include a computing device having a root complex, a smart endpoint coupled to the root complex, and an offload complex coupled to the smart endpoint. The smart endpoint receives an I/O transaction that originates from the root complex and parses the I/O transaction based on an I/O protocol and identifies an I/O command. The smart endpoint may parse the I/O transaction based on endpoint firmware that may be programmed by the computing device. The smart endpoint accelerates the I/O command and provides a smart context to the offload complex. The smart endpoint may copy the I/O command to memory of the smart endpoint or the offload complex. The smart endpoint may identify protocol data based on the I/O command and copy the protocol data to the memory of the smart endpoint or the offload complex. Other embodiments are described and claimed.

公开(公告)号：US10783100B2

公开(公告)日：2020-09-22

申请号：US16366504

申请日：2019-03-27

Applicant: Intel Corporation

Inventor： Matthew J. Adiletta ,  Brad Burres ,  Duane Galbi ,  Amit Kumar ,  Yadong Li ,  Salma Mirza ,  Jose Niell ,  Thomas E. Willis ,  William Duggan

IPC: G06F13/20 ,  G06F13/42

Abstract: Technologies for flexible I/O endpoint acceleration include a computing device having a root complex, a soft endpoint coupled to the root complex, and an offload complex coupled to the soft endpoint. The soft endpoint establishes an emulated endpoint hierarchy based on endpoint firmware. The computing device may program the endpoint firmware. The soft endpoint receives an I/O transaction that originates from the root complex and determines whether to process the I/O transaction. The soft endpoint may process the I/O transaction or forward the I/O transaction to the offload complex. The soft endpoint may encapsulate the I/O transaction with metadata and forward the encapsulated transaction to the offload complex. The soft endpoint may store responses from the offload complex in a history buffer and retrieve the responses in response to retried I/O transactions. The I/O transaction may be a PCI Express transaction layer packet. Other embodiments are described and claimed.