Re: git: 4262dbc57982 - main - wifi manuals: Mlink + document description consistency

From: Alexander Ziaee <adziaee_at_runbox.com>
Date: Thu, 06 Mar 2025 23:47:31 UTC
On 2025-03-04 12:07 -05:00 EST, "Warner Losh" <imp@bsdimp.com> wrote:
> On Tue, Mar 4, 2025 at 8:23 AM John Baldwin <jhb@freebsd.org> wrote:
> 
>> On 3/4/25 09:25, Bjoern A. Zeeb wrote:
>> > On Tue, 4 Mar 2025, Herbert J. Skuhra wrote:
>> >
>> >> On Thu, 27 Feb 2025 23:22:00 +0100, Alexander Ziaee wrote:
>> >>>
>> >>> The branch main has been updated by ziaee:
>> >>>
>> >>> URL:
>> https://cgit.FreeBSD.org/src/commit/?id=4262dbc57982383eb61a8b7806de6dd4b7802da8
>> >>>
>> >>> commit 4262dbc57982383eb61a8b7806de6dd4b7802da8
>> >>> Author:     Alexander Ziaee <ziaee@FreeBSD.org>
>> >>> AuthorDate: 2025-02-19 15:54:27 +0000
>> >>> Commit:     Alexander Ziaee <ziaee@FreeBSD.org>
>> >>> CommitDate: 2025-02-27 22:20:22 +0000
>> >>>
>> >>>      wifi manuals: Mlink + document description consistency
>> >>>
>> >>>      Interfaces all have an mlink to if_$foo. Add these for the
>> missing ones
>> >>>      and remove an incorrect one from rtwn_pci. Wireless network
>> drivers are
>> >>>      all accessible via `apropos -s4 "wireless network driver", except
>> two
>> >>>      which are "wireless network device". I actually prefer the
>> latter, but
>> >>>      make them all consistent upon the more common parlance. Tag SPDX
>> on one
>> >>>      of the files I touched, while here.
>> >>>
>> >>>      MFC after:              3 days
>> >>>      Reviewed by:            bz, carlavilla, mhorne
>> >>>      Approved by:            carlavilla, mhorne (mentors)
>> >>>      Differential Revision:  https://reviews.freebsd.org/D49063
>> >>> ---
>> >>>   share/man/man4/Makefile | 4 +++-
>> >>>   share/man/man4/uath.4   | 4 +++-
>> >>>   share/man/man4/upgt.4   | 2 +-
>> >>>   3 files changed, 7 insertions(+), 3 deletions(-)
>> >>>
>> >>> diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
>> >>> index 13afc9b8d399..8e0af19eec3d 100644
>> >>> --- a/share/man/man4/Makefile
>> >>> +++ b/share/man/man4/Makefile
>> >>> @@ -764,7 +764,9 @@ MLINKS+=ptnet.4 if_ptnet.4
>> >>>   MLINKS+=ral.4 if_ral.4
>> >>>   MLINKS+=re.4 if_re.4
>> >>>   MLINKS+=rl.4 if_rl.4
>> >>> -MLINKS+=rtwn_pci.4 if_rtwn_pci.4
>> >>> +MLINKS+=rtw88.4 if_rtw89.4
>> >>> +MLINKS+=rtw89.4 if_rtw89.4
>> >>> +MLINKS+=rtwn.4 if_rtwn.4
>> >>                   ^^^^^^^^^
>> >> $ grep if_rtwn.4 ObsoleteFiles.inc
>> >> OLD_FILES+=usr/share/man/man4/if_rtwn.4.gz
>> >
>> > In fact that is probably correct but things are confusing.
>> >
>> > The modules are called if_rtwn_usb.ko and if_rtwn_pci.ko and those
>> > should have the man page and links (so contrary to what was done).
>> > rtwn.ko is just the common code if I am not mistaken (Adrian should know
>> > better).
>> >
>> > But everyone is just referring to the driver as rtwn and I fear if there
>> > is no man page to be found as man rtwn / man if_rtwn people will be
>> > confused.
>> >
>> > I wanted to do the same with rtw88 but was told to keep it all together
>> > as one so rtwn is an excemption.
>> >
>> > That all said, yes, it needs a further cleanup.
>>
>> The manpages should just be rtwn/if_rtwn.  The bus attachment doesn't
>> matter.
>> We don't have separate manpages when a storage adapter has been supported
>> on both PCI and ISA in the past, you just had the ahc(4) driver (for
>> example).
>> USB vs PCI is the same.  It should just be a single manpage for the driver
>> regardless of the attachment.  If the driver has separate modules that can
>> be documented in the one manpage, but the list of supported chipsets, etc.
>> is presumably shared hence the shared driver name and common code.  In
>> particular, the thing a user sees in dmesg is 'rtwn0', not 'rtwn_pci0' so
>> the manpage needs to be tied to what a user sees as a device name in dmesg.
>>
> 
> Yea, the man page should mention the detail that we have separate .ko's, but
> otherwise I agree with John here.

IIUC, all interfaces should be documented as $foo with an mlink (but no additional
name macro) to if_$foo. I've also been pushing for sound to become represented
the same way for consistency, which christos said (paraphrased) no objection.