^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) config RDMA_RXE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) tristate "Software RDMA over Ethernet (RoCE) driver"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) depends on INET && PCI && INFINIBAND
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) depends on INFINIBAND_VIRT_DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) select NET_UDP_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) select CRYPTO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) select CRYPTO_CRC32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) This driver implements the InfiniBand RDMA transport over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) the Linux network stack. It enables a system with a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) standard Ethernet adapter to interoperate with a RoCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) adapter or with another system running the RXE driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) Documentation on InfiniBand and RoCE can be downloaded at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) www.infinibandta.org and www.openfabrics.org. (See also
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) siw which is a similar software driver for iWARP.)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) The driver is split into two layers, one interfaces with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) Linux RDMA stack and implements a kernel or user space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) verbs API. The user space verbs API requires a support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) library named librxe which is loaded by the generic user
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) space verbs API, libibverbs. The other layer interfaces
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) with the Linux network stack at layer 3.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) To configure and work with soft-RoCE driver please use the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) following wiki page under "configure Soft-RoCE (RXE)" section:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) https://github.com/linux-rdma/rdma-core/blob/master/Documentation/rxe.md