Re: [PATCH for-next] RDMA/hfi2: Consolidate ABI files and setup uverbs access

[Leon Romanovsky <leon@kernel.org>]

On Wed, Mar 11, 2026 at 01:33:57PM -0400, Dennis Dalessandro wrote:
> hfi1 driver is being replaced eventually with an hfi2 driver. Until that
> happens rather than have all the duplicated code in header files, make hfi1
> use hfi2 variants where it can. When compatibility breaks we'll keep a
> separate hfi1 version.
> 
> This is the case for the <dev>_status struture. The hfi1 varaint is single
> port and uses a freezemsg char array while the new hfi2 chip provides
> multiple ports and thus needs and array of ports.
> 
> Likewise the tid info struct is expanded for hfi2 so we include both an
> hfi1 and hfi2 vaiant.
> 
> There is a naming conflict with the trace_hfi1_ctxt_info() call. It has been
> renamed to remove the 1 from the function name to keep the code readable
> but allow it to compile due to the #define in hfi1_ioctl.h.
> 
> The big departure from hfi1 is that we are no longer supporting access from
> users through a private character device. Instead we define two custom
> verbs ojects. dv0/1, which proivdes methods for what in hfi1 are individual
> IOCTLs. We have added an additional method to get stats related to page
> pinning done by the driver.
> 
> The reason we are not removing the hfi1_ioctl.h and hfi1_user.h header
> files is user application compatibility. User apps depend on having these
> files available. Once user apps have converted and hfi1 is removed these
> files will be deleted as well.

What are the applications that use include/uapi/rdma/hfi/hfi1_* directly?
I have hard time to find any application on github which includes them.

Thanks