REMOTE DIRECT MEMORY ACCESS WITH OFFSET VALUES

• Main Authors: MARGOLIN ALEX, SHATTAH GUY, MIZRAHI TAL, BELKAR BEN-SHAHAR, KHERMOSH LIOR, HYATT RONEN, VOLKIND DANNY
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The present disclosure relates to Remote Direct Memory Access (RDMA). The present disclosure provides devices and corresponding methods for RDMA, which may initiate one or more RDMA operations on a memory and enable efficient zero-copy on a target device. For instance, a target device of the RDMA operation is configured to receive a packet including a first destination address and a destination key, obtain one or more offset values, and obtain a second destination address based on the first destination address, the destination key, and the one or more offset values. Further, the target device is configured to initiate the RDMA operation on the memory based on the second destination address. 本公开涉及远程直接内存访问(Remote Direct Memory Access，RDMA)。本公开提供了用于RDMA的设备及对应方法，可以在存储器上发起至少一个RDMA操作并在目标设备上实现有效的零拷贝。例如，RDMA操作的目标设备用于接收数据包，该数据包包括第一目的地址和目的密钥；获取至少一个偏移值；并基于第一目的地址、目的密钥及至少一个偏移值获取第二目的地址。此外，目标设备用于基于第二目的地址在存储器上发起RDMA操作。