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Major linux distibutions have phased out support for 32-bit machines. Since rxe is primarily used for development and testing, the benefit of maintaining 32-bit support is minimal. This change simplifies ATOMIC WRITE implementations and improves maintainability of the driver. Signed-off-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com> Link: https://patch.msgid.link/20250421025101.3588139-1-matsuda-daisuke@fujitsu.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
27 lines
1.1 KiB
Text
27 lines
1.1 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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config RDMA_RXE
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tristate "Software RDMA over Ethernet (RoCE) driver"
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depends on INET && PCI && INFINIBAND && 64BIT
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depends on INFINIBAND_VIRT_DMA
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select NET_UDP_TUNNEL
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select CRC32
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help
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This driver implements the InfiniBand RDMA transport over
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the Linux network stack. It enables a system with a
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standard Ethernet adapter to interoperate with a RoCE
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adapter or with another system running the RXE driver.
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Documentation on InfiniBand and RoCE can be downloaded at
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www.infinibandta.org and www.openfabrics.org. (See also
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siw which is a similar software driver for iWARP.)
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The driver is split into two layers, one interfaces with the
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Linux RDMA stack and implements a kernel or user space
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verbs API. The user space verbs API requires a support
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library named librxe which is loaded by the generic user
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space verbs API, libibverbs. The other layer interfaces
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with the Linux network stack at layer 3.
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To configure and work with soft-RoCE driver please use the
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following wiki page under "configure Soft-RoCE (RXE)" section:
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https://github.com/linux-rdma/rdma-core/blob/master/Documentation/rxe.md
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