linux-rdma/rdma-core

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

2352 stars · 899 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

rdma-core provides the userspace libraries and daemons for the Linux kernel's RDMA (drivers/infiniband) subsystem, including libibverbs, librdmacm, and libibumad. It includes provider plugins for many RDMA-capable NICs (Mellanox, Chelsio, AWS EFA, etc.) plus service daemons like srp_daemon, iwpmd, and ibacm.

Use cases

• write applications that use RDMA verbs for low-latency networking
• set up RoCE or iWARP on Linux with rdma link
• enable userspace access to InfiniBand device nodes
• run software RDMA (rxe/siw) over existing Ethernet interfaces
• manage SRP storage targets with srp_daemon
• build HPC or distributed storage software using RDMA transports

When to choose

• you need userspace RDMA support on Linux for InfiniBand, RoCE, or iWARP hardware
• you are developing applications against the libibverbs/librdmacm APIs
• you need provider libraries for a specific RDMA-capable NIC driver

When to avoid

• you need RDMA on non-Linux platforms
• you only need TCP/UDP networking without kernel-bypass
• you want a high-level networking abstraction rather than low-level verbs programming

Facets

library · maturity stable

networking sdk developer-tools networking operating-systems hardware developer-tools c cpp rdma infiniband roce iwarp libibverbs kernel-drivers userspace-libraries high-performance-computing linux

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markdown · JSON · MCP: product_card(name="linux-rdma/rdma-core")