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475f23b8c6
When RDMA_RXE is enabled and CRYPTO is disabled, Kbuild gives the
following warning:
WARNING: unmet direct dependencies detected for CRYPTO_CRC32
Depends on [n]: CRYPTO [=n]
Selected by [y]:
- RDMA_RXE [=y] && (INFINIBAND_USER_ACCESS [=y] || !INFINIBAND_USER_ACCESS [=y]) && INET [=y] && PCI [=y] && INFINIBAND [=y] && INFINIBAND_VIRT_DMA [=y]
This is because RDMA_RXE selects CRYPTO_CRC32, without depending on or
selecting CRYPTO, despite that config option being subordinate to CRYPTO.
Fixes: cee2688e3c ("IB/rxe: Offload CRC calculation when possible")
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Link: https://lore.kernel.org/r/21525878.NYvzQUHefP@ubuntu-mate-laptop
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
1.1 KiB
1.1 KiB
SPDX-License-Identifier: GPL-2.0-only
config RDMA_RXE tristate "Software RDMA over Ethernet (RoCE) driver" depends on INET && PCI && INFINIBAND depends on INFINIBAND_VIRT_DMA select NET_UDP_TUNNEL select CRYPTO select CRYPTO_CRC32 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