Date: Thu, 16 Dec 2021 08:49:37 -0800 From: Gleb Smirnoff <glebius@freebsd.org> To: Warner Losh <imp@bsdimp.com> Cc: Emmanuel Vadot <manu@bidouilliste.com>, Ed Maste <emaste@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Any Cronyx Tau* (ce(4) or cp(4)) users ? Message-ID: <YbtuIZ38RPPyXnCt@FreeBSD.org> In-Reply-To: <CANCZdfp_An2RFzmdps%2BiZRD9qk697iSMVzn8JOpAKmy0yf5W6w@mail.gmail.com> References: <20211215162538.99d8d81650af56e2276f2f88@bidouilliste.com> <CAPyFy2D7mtKpv9uO8NOEx9iAoyg71vzLaxMVnzKZ5gDejhx19w@mail.gmail.com> <20211215175202.e1d101079a9c22c9094577f3@bidouilliste.com> <YbovxIBUE%2Bmi/fZG@FreeBSD.org> <20211216101733.7b7bfa569aca496b22ef0324@bidouilliste.com> <YbtUyqVwpoKFTV1T@FreeBSD.org> <20211216161337.1fa53758e61eaeb37b8b24d0@bidouilliste.com> <Ybtg5nM%2BVC/YTRKa@FreeBSD.org> <CANCZdfp_An2RFzmdps%2BiZRD9qk697iSMVzn8JOpAKmy0yf5W6w@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Dec 16, 2021 at 09:30:41AM -0700, Warner Losh wrote: W> > E> And we're doing that just because the drivers compiles ? W> > G> We are doing that because the hardware is still produced ... W> > E> ... a lot of obsolete hardware that we've removed are still produced ... W> > G> I'd be interested to see at least one example ... W> > E> This was an hypothetical situation. W> > W> > I don't know what to reply here. :( W> W> The standards that Brooks, Ed and I have been using in retiring drivers has W> been W> "Still relevant to FreeBSD". Although whether or not something was still in W> production W> is an input into that, it's not the only factor in decisions made. W> W> While that standard is a bit vague, I'm struggling understanding the case W> for these W> drivers still being relevant to FreeBSD in the absence of documented actual W> use, W> let alone a use case that we can do a cost-benefit analysis on. Yes, so what I'm trying to say here is that right now cost of having the drivers in the tree is virtually zero. Emmanuel says that benefit is zero. I can't refute Emmanuel's statement, I can only speculate that benefit could be non-zero, as apparently devices are still produced and E1 lines still exist. So I'm fine with removal if anybody demonstrates me a non-zero cost of leaving the drivers in. -- Gleb Smirnoff
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?YbtuIZ38RPPyXnCt>