HostRdmaDeviceConnectionState_enum
Possible RDMA device connection states.
These correspond to possible link states as defined by the Infiniband (TM) specification.
Further details can be found in:
- "Infiniband (TM) Architecture Specification, Volume 1" section 7.2 "Link states"
Possible values:
unknown: Connection state unknown.Indicates that the driver returned unexpected or no connection state information.
down: Device down.Indicates that both the logical link and underlying physical link are down. Packets are discarded.
init: Device initializing.Indicates that the physical link is up, but the logical link is still initializing. Only subnet management and flow control link packets can be received and transmitted.
armed: Device armed.Indicates that the physical link is up, but the logical link is not yet fully configured. Packets can be received, but non-SMPs (subnet management packets) to be sent are discarded.
active: Device active.Indicates that both the physical and logical link are up. Packets can be transmitted and received.
activeDefer: Device in active defer state.Indicates that the logical link was active, but the physical link has suffered a failure. If it recovers within a timeout, the connection state will return to active, otherwise it will move to down.