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Date:      Wed, 10 Jun 2009 14:31:49 -0700
From:      Kip Macy <kip.macy@gmail.com>
To:        "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
Cc:        freebsd-net@freebsd.org
Subject:   Re: fxp hack in sys/net/if.c?
Message-ID:  <3c1674c90906101431x7b556855pd3103d9e7a9f26dc@mail.gmail.com>
In-Reply-To: <3c1674c90906101417j39a01f85k8e98c0ee19a011a7@mail.gmail.com>
References:  <20090610210021.N22887@maildrop.int.zabbadoz.net> <3c1674c90906101417j39a01f85k8e98c0ee19a011a7@mail.gmail.com>

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The reasoning behind moving the delay in to shared code is not very compell=
ing.

-Kip

On Wed, Jun 10, 2009 at 2:17 PM, Kip Macy<kip.macy@gmail.com> wrote:
> From "cvs blame":
>
> Add workaround for fxp issue at interface initialization with IPv6.
>
> =A0Some LAN card chip for fxp is known to cause problem at
> =A0interface initialization with IPv6 enabled. It happens at
> =A0some delicate timing.
> =A0And also, just adding some DELAY before IPv6 address
> =A0autoconfiguration is known to avoid the problem.
>
> =A0Complete fix is changing the driver not to use interrupt at
> =A0multicast filter initialization, but trying such change in
> =A0this stage will be dangerous.
>
> =A0So I add some DELAY() only inside #ifdef INET6 part,
> =A0as temporal workaround only for 4.0.
>
> Approbed by: jkh
>
> Noticed by: Mattias Pantzare <pantzer@ludd.luth.se>
>
> Obtained from: openbsd-tech mailing list
>
>
>
> On Wed, Jun 10, 2009 at 2:03 PM, Bjoern A.
> Zeeb<bzeeb-lists@lists.zabbadoz.net> wrote:
>> Hi,
>>
>> could anyone having a clue why that is there look at it and either
>> remove it or remove it and properly handle it elsewhere?
>>
>> I have continuesly noticed it for a while so I think the "temporary"
>> as given in the comment rather means "forgotten"?
>>
>> sys/net/if.c: =A0 =A0 =A0 =A0 =A0 DELAY(100);/* XXX: temporary workaroun=
d for fxp
>> issue*/
>>
>> /bz
>>
>> --
>> Bjoern A. Zeeb =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0The greatest r=
isk is not taking one.
>> _______________________________________________
>> freebsd-net@freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-net
>> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
>>
>
>
>
> --
> When bad men combine, the good must associate; else they will fall one
> by one, an unpitied sacrifice in a contemptible struggle.
>
> =A0 =A0Edmund Burke
>



--=20
When bad men combine, the good must associate; else they will fall one
by one, an unpitied sacrifice in a contemptible struggle.

    Edmund Burke



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