Tom Tucker wrote:
I'm don't understand the dev_remove usage in the rdma_cm_id. It looks to
me like if the user calls rdma_resolve_addr, but never calls
rdma_resolve_route that the device could not be removed. Is this the
intended behavior?
Once a rdma_cm_id has been bound to a device, the user must destroy that
rdma_cm_id on device removal before the device removal can proceed.
Is the goal to prevent the user from removing the device if the client
is in a callback? If so, can't we just increment and decrement in the
cma_notify_user function? I guess I just don't understand...
Users above the CMA obtain their device pointer from the CMA. The device
pointer must be valid outside of CMA callbacks, so device removal is delayed
until the user releases all resources associated with a device. Destruction of
the rdma_cm_id indicates that the user is no longer using that device.
- Sean
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