1RDMA-SYSTEM(8) Linux RDMA-SYSTEM(8)
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6 rdma-system - RDMA subsystem configuration
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9 rdma [ OPTIONS ] sys { COMMAND | help }
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12 OPTIONS := { -V[ersion] | -d[etails] }
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14 rdma system show
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16 rdma system set netns NEWMODE
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18 rdma system help
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22 rdma system set - set RDMA subsystem network namespace mode
23 rdma system show - display RDMA subsystem network namespace mode
24 NEWMODE - specifies the RDMA subsystem mode. Either exclusive or
25 shared. When user wants to assign dedicated RDMA device to a particu‐
26 lar network namespace, exclusive mode should be set before creating any
27 network namespace. If there are active network namespaces and if one or
28 more RDMA devices exist, changing mode from shared to exclusive returns
29 error code EBUSY.
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31 When RDMA subsystem is in shared mode, RDMA device is accessible in all
32 network namespace. When RDMA device isolation among multiple network
33 namespaces is not needed, shared mode can be used.
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35 It is preferred to not change the subsystem mode when there is active
36 RDMA traffic running, even though it is supported.
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40 rdma system show
41 Shows the state of RDMA subsystem network namespace mode on the
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44 rdma system set netns exclusive
45 Sets the RDMA subsystem in network namespace exclusive mode. In
46 this mode RDMA devices are visible only in single network names‐
47 pace.
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49 rdma system set netns shared
50 Sets the RDMA subsystem in network namespace shared mode. In this
51 mode RDMA devices are shared among network namespaces.
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54 rdma(8), rdma-link(8), rdma-resource(8), network_namespaces(7), names‐
55 paces(7),
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59 Parav Pandit <parav@mellanox.com>
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63iproute2 06 Jul 2017 RDMA-SYSTEM(8)