kern/165399: turn off port on SWITCH do not change status of igb

Коньков Евгений kes-kes at yandex.ru
Thu Feb 23 17:47:04 UTC 2012


Здравствуйте, Jack.

Вы писали 22 февраля 2012 г., 22:40:07:

VJ> The following reply was made to PR kern/165399; it has been noted by GNATS.

VJ> From: "Vogel, Jack" <jack.vogel at intel.com>
VJ> To: "bug-followup at FreeBSD.org" <bug-followup at FreeBSD.org>, "kes-kes at yandex.ru"
VJ>         <kes-kes at yandex.ru>
VJ> Cc:  
VJ> Subject: Re: kern/165399: turn off port on SWITCH do not change status of igb
VJ> Date: Wed, 22 Feb 2012 20:07:34 +0000

VJ>  --_000_BC1B13FD0226B0479C795193AC1B257204574EORSMSX104amrcorpi_
VJ>  Content-Type: text/plain; charset="us-ascii"
VJ>  Content-Transfer-Encoding: quoted-printable
VJ>  
VJ>  This is not a bug, it's a side-effect of design. Until you bring the interf=
VJ>  ace up interrupts are not enabled, hence there is no way to see and respond=
VJ>   to the link change event. If you bring the port up just by doing an `ifcon=
VJ>  fig igbX up` and try it again you'll see the status will change.

Ok, I agree with that that port do no reacion until it is 'UP'
but why it do reaction when port on switch is turned ON?
SW PORT is OFF      -----------   status link is no carrier

SW PORT is ON       -----------   status link is active
      (why react despite on interrupts is off???)
SW PORT is OFF      -----------   status link is active
      (do not react because of interrupts is off)


-- 
С уважением,
 Коньков                          mailto:kes-kes at yandex.ru



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