Host Address Translation for Non-Linear Memory Buffering
Solution Overview
Problem
Existing memory systems face inefficiencies in performing write and read operations due to the need to manage non-linear host physical addresses, which can lead to performance degradation and complexity in data allocation and retrieval.
Innovation Solution
A memory system that translates non-linear host physical addresses into linear virtual addresses, using a host address translation section to generate a physical-virtual address mapping table, allowing for efficient buffering and operation in a controller buffer memory, and subsequent output to a host buffer memory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If non-linear host physical addresses are used directly for buffering, then the host memory addressing is simplified, but the controller buffer management becomes complex and inefficient
Solution Approach 1:
The patent introduces a host address translation section as an intermediary component that translates non-linear host physical addresses into linear virtual addresses. This translation layer acts as a mediator between the host interface and the controller buffer memory, converting complex non-linear addressing into simple linear addressing that the controller can efficiently manage. The intermediary resolves the contradiction by maintaining ease of host addressing while simplifying controller buffer management.
2Ease of manufacture
If non-linear host physical addresses are used for data buffering, then host address allocation is straightforward, but write and read operation performance degrades
Solution Approach 1:
The patent changes the addressing parameter from non-linear host physical addresses to linear virtual addresses through the address translation section. By transforming the address parameter representation, the system maintains straightforward host address allocation while enabling sequential address patterns in the controller buffer that significantly improve write and read operation performance. The parameter change resolves the contradiction by preserving host allocation simplicity while enhancing operational productivity.
3Loss of time
If non-linear addresses are mapped directly to buffer locations, then address translation overhead is minimized, but address allocation efficiency decreases
Solution Approach 1:
The patent performs preliminary address translation by converting non-linear host physical addresses to linear virtual addresses before data buffering operations. This preliminary action of address translation establishes an efficient linear addressing scheme upfront, enabling sequential address allocation in the controller buffer that improves overall address allocation efficiency. The preliminary translation resolves the contradiction by minimizing subsequent address translation overhead while maximizing allocation efficiency through sequential address patterns.
Data Source
AI summary
A memory system and an operating method thereof are provided. The memory system includes a controller buffer memory, a host interface configured to receive non-linear host physical addresses and write data from a host, a host address translation section configured to map the non-linear host physical addresses to linear virtual addresses, and a host control section configured to buffer the write data in the controller buffer memory according to the linear virtual addresses.