CONFIG_RDMA_RXE: Software RDMA over Ethernet (RoCE) driver

General informations

The Linux kernel configuration item CONFIG_RDMA_RXE:

• prompt: Software RDMA over Ethernet (RoCE) driver
• type: tristate
• depends on: ( CONFIG_INET && CONFIG_PCI && CONFIG_INFINIBAND ) && ( CONFIG_INFINIBAND_VIRT_DMA )
• defined in drivers/infiniband/sw/rxe/Kconfig
• found in Linux kernels: 4.8–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD
• modules built: rdma_rxe

Help text

This driver implements the InfiniBand RDMA transport over the Linux network stack. It enables a system with a standard Ethernet adapter to interoperate with a RoCE adapter or with another system running the RXE driver. Documentation on InfiniBand and RoCE can be downloaded at www.infinibandta.org and www.openfabrics.org. (See also siw which is a similar software driver for iWARP.)

The driver is split into two layers, one interfaces with the Linux RDMA stack and implements a kernel or user space verbs API. The user space verbs API requires a support library named librxe which is loaded by the generic user space verbs API, libibverbs. The other layer interfaces with the Linux network stack at layer 3.

To configure and work with soft-RoCE driver please use the following wiki page under "configure Soft-RoCE (RXE)" section:

https://github.com/linux-rdma/rdma-core/blob/master/Documentation/rxe.md

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module rdma_rxe CONFIG_RDMA_RXE : drivers/infiniband/sw/rxe/Kconfig : "Software RDMA over Ethernet (RoCE) driver" # in 4.8–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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