公开(公告)号：US11334507B2

公开(公告)日：2022-05-17

申请号：US17120491

申请日：2020-12-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Suman Prakash Balakrishnan ,  Muthazhagan Balasubramani ,  Prakash Babu Vemula ,  Raphel David Johnson

IPC: G06F13/28 ,  G06F3/06

Abstract: The present disclosure describes a method and a system for sending data packets to improve Quality of Service in Non-Volatile Memory express (NVMe) aware Remote Direct Memory Access (RDMA) network, including receiving, by a host RNIC, RDMA command from a host initiator, wherein the RDMA command comprises data packets, arranging, by the host RNIC, the data packets based on weights and priorities of RDMA queue pairs, storing, by the host RNIC, the data packets in a host queue from host RDMA queue pairs based on the weights and priorities of the RDMA queue pairs, and sending, by the host RNIC, the data packets through host virtual lanes to a target RNIC.

公开(公告)号：US11016911B2

公开(公告)日：2021-05-25

申请号：US16549476

申请日：2019-08-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Muthazhagan Balasubramani ,  Chirag Chinmay ,  Venkataratnam Nimmagadda ,  Raphel David Johnson

IPC: G06F3/00 ,  G06F13/16 ,  G06F15/173

Abstract: Systems and methods for managing transfer of NVMeoF commands/responses between a host and a target are described. The systems and methods may initiate and convert at least one Input/Output request into at least one Non-Volatile Memory Express over Fabric (NVMeoF) command to access a storage device attached with the target device. A host may transmit the at least one NVMeoF command in a burst mode using a Remote Direct Memory Access (RDMA) Write packet to a pre-registered memory region of the target device. In response to reception of the at least one NVMeoF command, the target device may post at least one NVMeoF completion response corresponding to the at least one NVMeoF command using the RDMA Write packet to a pre-registered memory region of the host.

公开(公告)号：US20220058146A1

公开(公告)日：2022-02-24

申请号：US17120491

申请日：2020-12-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Suman Prakash Balakrishnan ,  Muthazhagan Balasubramani ,  Prakash Babu Vemula ,  Raphel David Johnson

IPC: G06F13/28 ,  G06F3/06

Abstract: The present disclosure describes a method and a system for sending data packets to improve Quality of Service in Non-Volatile Memory express (NVMe) aware Remote Direct Memory Access (RDMA) network, including receiving, by a host RNIC, RDMA command from a host initiator, wherein the RDMA command comprises data packets, arranging, by the host RNIC, the data packets based on weights and priorities of RDMA queue pairs, storing, by the host RNIC, the data packets in a host queue from host RDMA queue pairs based on the weights and priorities of the RDMA queue pairs, and sending, by the host RNIC, the data packets through host virtual lanes to a target RNIC.

公开(公告)号：US11232003B1

公开(公告)日：2022-01-25

申请号：US17197289

申请日：2021-03-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chirag Chinmay ,  Muthazhagan Balasubramani ,  Venkataratnam Nimmagadda

IPC: G06F11/20

Abstract: A first host system in a multipath storage system acts on behalf of a second host system when the second host system is unable to access a solid state drive (SSD). The first host system configures a bitmap table using an SSD controller of the first host system to access memory of the SSD associated with the second host system. The memory accessed on behalf of the second host system may be in a region including persistent memory, base address register memory and/or controller memory buffer of the second host system.