| # SPDX-License-Identifier: GPL-2.0-only |
| config RDMA_RXE |
| tristate "Software RDMA over Ethernet (RoCE) driver" |
| depends on INET && PCI && INFINIBAND |
| depends on !64BIT || ARCH_DMA_ADDR_T_64BIT |
| select NET_UDP_TUNNEL |
| select CRYPTO_CRC32 |
| select DMA_VIRT_OPS |
| help |
| 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 |
