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Date:      Tue, 18 Sep 2012 10:04:21 +0100
From:      Jamie Paul Griffin <jamie@kode5.net>
To:        freebsd-questions@freebsd.org
Subject:   Re: exclude device from bus probe?
Message-ID:  <20120918090420.GD5486@kontrol.kode5.net>
In-Reply-To: <84002D87687695781C9FBC88@Gorans-MacBook-Pro.local>
References:  <84002D87687695781C9FBC88@Gorans-MacBook-Pro.local>

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> We have a system based on Supermicro X7SPA-HF with IPMI connected via a 
> shared 82574L NIC. We are not using this NIC for anything from the OS but 
> the probing and device attach breaks the IPMI connection so bad FBSD don't 
> see any screen during boot. There is no BIOS flag that disables the NIC 
> from the OS, only a HW strap but that dsables the IPMI also.
> 
> Is it possible to disable the probe of the NIC using hists to the PCI bus 
> driver? I have addded hint.em.0.disable=1 but it does not help.
> 
> em0@pci0:2:0:0:	class=0x020000 card=0x10d315d9 chip=0x10d38086 rev=0x00 
> hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = '82574L Gigabit Network Connection'
>     class      = network
>     subclass   = ethernet
> 
> Any other suggestions appreciated.

You could remove it from the Kernel config file and build a custom Kernel.



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