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Date:      Fri, 16 Jan 2015 10:57:54 -0700
From:      Warner Losh <imp@bsdimp.com>
To:        Slawa Olhovchenkov <slw@zxy.spb.ru>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers <src-committers@freebsd.org>, Warner Losh <imp@FreeBSD.org>
Subject:   Re: svn commit: r277204 - head/sys/amd64/conf
Message-ID:  <368B22F3-5607-46F8-B8D2-13CA59E94861@bsdimp.com>
In-Reply-To: <20150115132303.GA245@zxy.spb.ru>
References:  <201501150042.t0F0g7Um018059@svn.freebsd.org> <20150115132303.GA245@zxy.spb.ru>

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> On Jan 15, 2015, at 6:23 AM, Slawa Olhovchenkov <slw@zxy.spb.ru> =
wrote:
>=20
> On Thu, Jan 15, 2015 at 12:42:07AM +0000, Warner Losh wrote:
>=20
>> Author: imp
>> Date: Thu Jan 15 00:42:06 2015
>> New Revision: 277204
>> URL: https://svnweb.freebsd.org/changeset/base/277204
>>=20
>> Log:
>>  New MINIMAL kernel config. The goal with this configuration is to
>>  only compile in those options in GENERIC that cannot be loaded as
>>  modules. ufs is still included because many of its options aren't
>>  present in the kernel module. There's some other exceptions =
documented
>=20
> Are you sure?
> I think defining UFS options in kernel connfig affect to module too.
> When I define this options in kernel config (w/o options FFS) I got
> ufs.ko with this SU, quota, acl etc.

While one could set options in the kernel to affect the ufs.ko build,
there=E2=80=99s not a universal ufs.ko that can be loaded easily that =
switches
between the different types of options. You can create modules
that do this, but that=E2=80=99s a very very different problem than the =
one I
want to solve, namely you get the same[*] functionality having
device fred in the kernel config as kldloading fred.ko. So rather than
bite off that problem also, I=E2=80=99m opting for simplicity.

>> +options 	SOFTUPDATES		# Enable FFS soft updates =
support
>> +options 	UFS_ACL			# Support for access control =
lists
>> +options 	UFS_DIRHASH		# Improve performance on big =
directories
>> +options 	UFS_GJOURNAL		# Enable gjournal-based UFS =
journaling
>> +options 	QUOTA			# Enable disk quotas for UFS
>=20
>> +options 	SYSVSHM			# SYSV-style shared memory
>> +options 	SYSVMSG			# SYSV-style message queues
>> +options 	SYSVSEM			# SYSV-style semaphores
>> +device		agp			# support several AGP =
chipsets
>> +device		random			# Entropy device
>> +device		padlock_rng		# VIA Padlock RNG
>> +device		rdrand_rng		# Intel Bull Mountain =
RNG
>> +device		vlan			# 802.1Q VLAN support
>> +device		tun			# Packet tunnel.
>> +device		gif			# IPv6 and IPv4 =
tunneling
>=20
> This is loadable too.

True

> And please include:
>=20
> NETMAP
> NFS_ROOT

OK.

> IEEE80211_DEBUG
> IEEE80211_AMPDU_AGE
> IEEE80211_SUPPORT_MESH
> AH_SUPPORT_AR5416
> AH_AR5416_INTERRUPT_MITIGATION
> ATH_ENABLE_11N

These are already the default for the ath or wlan modules, if I=E2=80=99m =
reading things correctly.

Warner

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