RE: [PATCH 0/7] IB/hfi1: Remove write() and use ioctl() for user access

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> Right - and the RDMA uAPI has always had an integrated driver-bypass
> channel as part of the verb uAPI calls, extending that to allow for
> new-driver-specific calls seems very natural.

I remain unconvinced that having the equivalent of:

1 open unrelated-interface
2 ioctl open-file
3 close unrelated-interface

is desirable.  If you want to push for a generic mechanism for mapping NIC resources into user space, then separate that from the device implementation.

Doug, can you weigh in here with your thoughts?
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