Invention Grant
- Patent Title: Method for PRP/SGL handling for out-of-order NVME controllers
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Application No.: US17032819Application Date: 2020-09-25
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Publication No.: US11698871B2Publication Date: 2023-07-11
- Inventor: Yimin Chen , Fan Yang
- Applicant: PetalO Inc.
- Applicant Address: US CA Santa Clara
- Assignee: PETAIO INC.
- Current Assignee: PETAIO INC.
- Current Assignee Address: US CA Santa Clara
- Agency: Stevens Law Group
- Agent David R. Stevens
- Main IPC: G06F13/16
- IPC: G06F13/16 ; G06F12/0817 ; G06F12/02 ; G06F13/42

Abstract:
Read latency for a read operation to a host implementing a PRP/SGL buffer is reduced by generating an address table representing the linked-list structure defining the PRP/SGL buffer. The address table may be generated concurrently with reading of data referenced by the read command from a NAND storage device. A block table for tracking status of LBAs referenced by IO commands may include a reference to the address table which is used to transfer LBAs to host memory as soon as the address table is complete and a block of data referenced by an LBA has been read from the NAND storage device.
Public/Granted literature
- US20220100681A1 Method For PRP/SGL Handling For Out-Of-Order NVME Controllers Public/Granted day:2022-03-31
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