exclude device from bus probe?

[Göran Löwkrantz]

No, that won't work. This is the NIC we have traffic over:
em1 at pci0:3:0:0:	class=0x020000 card=0x10d315d9 chip=0x10d38086 rev=0x00 
hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82574L Gigabit Network Connection'
    class      = network
    subclass   = ethernet

So to be exact, I need em0 to not be probed while em1 is probed and 
attached.

/glz

--On September 18, 2012 10:04:21 +0100 Jamie Paul Griffin <jamie at kode5.net> 
wrote:

>
>> 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 at 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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