NAME
rdma-system - RDMA subsystem configuration
SYNOPSIS
rdma [ OPTIONS ] sys { COMMAND | help }
OPTIONS := { -V[ersion] | -d[etails] }
rdma system show
rdma system setnetnsNEWMODE
rdma system setprivileged-qkeyNEWSTATE
rdma system help
DESCRIPTION
rdma system set - set RDMA subsystem network namespace mode or
privileged qkey mode
rdma system show - display RDMA subsystem network namespace mode,
privileged qkey state and whether RDMA monitoring is supported.
NEWMODE - specifies the RDMA subsystem mode. Either exclusive or shared. When user wants to assign dedicated RDMA device to a particular network namespace, exclusive mode should be set before creating any network namespace. If there are active network namespaces and if one or more RDMA devices exist, changing mode from shared to exclusive returns error code EBUSY.
When RDMA subsystem is in shared mode, RDMA device is accessible in all network namespace. When RDMA device isolation among multiple network namespaces is not needed, shared mode can be used.
It is preferred to not change the subsystem mode when there is active RDMA traffic running, even though it is supported.
NEWSTATE - Specifies the new state of the privileged-qkey parameter, either on or off. This parameter determines whether a non-privileged user is allowed to specify a controlled QKEY or not.
EXAMPLES
rdma system show
rdma system set netns exclusive
rdma system set netns shared
rdma system set privileged-qkey on
rdma system set privileged-qkey off
SEE ALSO
rdma(8), rdma-link(8), rdma-resource(8), rdma-monitor(8), network_namespaces(7), namespaces(7),
AUTHOR
Parav Pandit <[email protected]>