Wed, Dec 27, 2017 at 02:08:03PM CET, and...@lunn.ch wrote: >> This is misunderstanding I believe. This is not about ABI. That is well >> defined by the netlink attributes. This is about meaning of particular >> ASIC-specific internal resources. > >I would agree that the netlink attributed are clearly defined. But the >meta information, what this ASIC specific internal resource means when >you combine these attributes, is unclear. This meta information is >also part of the ABI, and documenting giving users a hit what it >means, and why they should change it, would be good practice. > >Look at sysfs. open/read/write are clearly defined, which is the >equivalent of the netlink attributes. The meta information we document >in Documentation/ABI/, what a file name means, what a value means, >what other values it can take, etc.
Hmm. That documents mainly sysfs. No mention of Netlink at all. But maybe I missed it. Also, that defines the interface as is. However we are talking about the data exchanged over the interface, not the interface itself. I don't see how ASIC/HW specific thing, like for example KVD in our case could be part of kernel ABI. That makes 0 sense to me, sorry.