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NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | SEE ALSO | AUTHOR | COLOPHON |
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RDMA-DEV(8) Linux RDMA-DEV(8)
rdma-dev - RDMA device configuration
rdma [ OPTIONS ] dev { COMMAND | help }
OPTIONS := { -V[ersion] | -d[etails] }
rdma dev show [ DEV ]
rdma dev set [ DEV ] name NEWNAME
rdma dev set [ DEV ] netns NSNAME
rdma dev set [ DEV ] adaptive-moderation [on/off]
rdma dev add [ NAME ] type [ TYPE ] parent [ PARENT_DEV ]
rdma dev delete [ NAME ]
rdma dev help
rdma dev set - rename RDMA device or set network namespace or set RDMA
device adaptive-moderation
rdma dev show - display RDMA device attributes
DEV - specifies the RDMA device to show. If this argument is
omitted all devices are listed.
rdma dev add - add a RDMA device
Add a RDMA device with a specific type and parent IB device. This
new device provides a subset of functionalities defined in the
IBTA spec.
rdma dev delete - delete a RDMA device
Delete a RDMA device which was created with the "add" command.
NAME - The name of the device being added/deleted.
TYPE - The type of the device being added. It specifies which
functionalities it provides. Supported device type:
SMI - A device with this type provides SMI (QP0)
interface. This device and its parent associates with the
same HCA port and shares the physical link, so when the
parent doesn't support SMI, then this type of device can
be created to allow the subnet manager to configure the
link.
PARENT_DEV - The name of its parent IB device.
rdma dev
Shows the state of all RDMA devices on the system.
rdma dev show mlx5_3
Shows the state of the specified RDMA device.
rdma dev set mlx5_3 name rdma_0
Renames the mlx5_3 device to rdma_0.
rdma dev set mlx5_3 netns foo
Changes the network namespace of RDMA device to foo where foo
was previously created using the iproute2 ip command.
rdma dev set mlx5_3 adaptive-moderation [on/off]
Sets the state of adaptive interrupt moderation for the RDMA
device.
This is a global setting for the RDMA device but the value is
printed for each CQ individually because the state is constant
from CQ allocation.
rdma dev add smi1 type SMI parent ibp8s0f1
Adds a new IB device with name "smi1", type "SMI", and
"ibp8s0f1" as its parent device.
rdma dev delete smi1
Deletes the IB device "smi1".
ip(8), rdma(8), rdma-link(8), rdma-resource(8), rdma-system(8),
rdma-statistic(8),
Leon Romanovsky <leonro@mellanox.com>
Mark Zhang <markzhang@nvidia.com>
This page is part of the iproute2 (utilities for controlling
TCP/IP networking and traffic) project. Information about the
project can be found at
⟨http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2⟩.
If you have a bug report for this manual page, send it to
netdev@vger.kernel.org, shemminger@osdl.org. This page was
obtained from the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/network/iproute2/iproute2.git⟩ on
2026-05-24. (At that time, the date of the most recent commit
that was found in the repository was 2026-05-17.) If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a
mail to man-pages@man7.org
iproute2 06 Jul 2017 RDMA-DEV(8)
Pages that refer to this page: rdma(8), rdma-link(8), rdma-resource(8), rdma-statistic(8)
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HTML rendering created 2026-05-25 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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