Read operation prior to retrieval of scatter gather list
US9110786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Nov 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage device includes a non-volatile memory and a controller coupled to the non-volatile memory. The controller is configured to receive a read command from a host device. The read command includes a starting logical block address (LBA) of the non-volatile memory, a number of logical blocks to be read (NLB), and a pointer to a scatter gather list (SGL). The controller is also configured to instruct the non-volatile memory to read a plurality of logical blocks from the non-volatile memory based on the starting LBA and the NLB. The controller is further configured to, after instructing the non-volatile memory to read the plurality of logical blocks, retrieve the SGL based on the pointer. The controller is configured to transfer a subset of the plurality of logical blocks identified by the SGL to the host device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.