On 1/9/23 6:39?PM, Viacheslav A.Dubeyko wrote: > > >> On Jan 9, 2023, at 5:09 PM, Jens Axboe <axboe@xxxxxxxxx> wrote: >> >> On 1/9/23 4:20?PM, Viacheslav A.Dubeyko wrote: >>> >>> >>>> On Jan 9, 2023, at 3:00 PM, Jens Axboe <axboe@xxxxxxxxx> wrote: >>>> >>>>>> My point here that we could summarize: >>>>>> (1) what features already implemented and supported, >>>>>> (2) what features are under implementation and what is progress, >>>>>> (3) what features need to be implemented yet. >>>>>> >>>>>> Have we implemented everything already? :) >>>>> >>>>> Standards are full of features that are not useful in a general purpose >>>>> system. So we likely never will implement everything. We never did for >>>>> SCSI and ATA and never will either. >>>> Indeed, and that's a very important point. Some people read specs and >>>> find things that aren't in the Linux driver (any spec, not a specific >>>> one), and think they need to be added. No. We only add them if they make >>>> sense, both in terms of use cases, but also as long as they can get >>>> implemented cleanly. Parts of basically any spec is garbage and don't >>>> necessarily fit within the given subsystem either. >>>> >>>> The above would make me worried about patches coming from anyone with >>>> that mindset. >>>> >>> >>> OK. We already have discussion about garbage in spec. :) >>> So, what would we like finally implement and what never makes sense to do? >>> Should we identify really important stuff for implementation? >> >> Well if you did have that discussion, then it seemed you got nothing >> from it. Because asking that kind of question is EXACTLY what I'm saying >> is the opposite of what should be done. If there's a demand for a >> feature, then it can be looked at and ultimately implemented if it makes >> sense. You're still talking about proactively finding features and >> implementing them "just in case they are needed", which is very much the >> opposite and wrong approach, and how any kind of software ends up being >> bloated, slow, and buggy/useless. >> > > I simply tried to suggest some space for this discussion and nothing > more. If all important features have been implemented already and > nobody would like to discuss new feature(s), then we can simply > exclude this topic from the list. If something is missing and there's a bof/session, then someone will bring it up. Fishing for things to implement is not a good idea. -- Jens Axboe
