Gotta start somewhere ... how many of us are really out there?
User Freebsd
freebsd at hub.org
Fri Aug 4 00:29:57 UTC 2006
On Fri, 4 Aug 2006, Antony Mawer wrote:
> On 4/08/2006 4:58 AM, User Freebsd wrote:
>> Getting a list of devices is actually pretty easy, and I've tried this on
>> my 4.x machines also, so it isn't something that will be a problem on older
>> versions:
>>
>> # pciconf -l
>> chip0 at pci0:0:0: class=0x060000 card=0x00000000 chip=0x700c1022 rev=0x20
>> hdr=0x00
> ...
>> And, more specifically, we can get:
>>
>> # pciconf -l -v
>> asr0 at pci0:9:0: class=0x010400 card=0xc0351044 chip=0xa5111044 rev=0x01
>> hdr=0x00
>> vendor = 'Adaptec (Formerly: Distributed Processing Technology
>> (DPT))'
>> device = 'Raptor SmartRAID Controller'
>> class = mass storage
>> subclass = RAID
>
> All of the expanded 'vendor', 'device', 'class' and 'subclass' information is
> present in the non -v version of the command output. The numbers shown
> earlier can be used to derive the text information:
>
> class=0x010400
> determines the class/subclass lines, using the table from here:
> http://fxr.watson.org/fxr/source/dev/pci/pci.c#L1340
>
> card=0xc0351044 chip=0xa5111044
> these make up the vendor and device lines, using the list in
> /usr/share/misc/pci_vendors (which is derived from the PCIDEVS.TXT
> listing).
>
> The last 4 hex digits of the card and chip lines are the vendor ID
> while the first 4 are the device ID. The card is often given by
> the vendor, while the chip identifies the actual part it uses to
> implement functionality. For instance, a Netcomm ethernet NIC may
> use a Realtek 8139 chip... so chip gives us the fact it's
> essentially a generic Realtek chipset, while the card tells us the
> vendor who manufactured the card & perhaps their name for it.
>
> In short, there's no reason to have to transmit all the text names back to
> any server -- this can all be resolved at the server end,
I was thinking of that ... my concern, and it may be totally invalid, but
is it guaranteed to always translate the same? ie:
fxp0 at pci2:8:0: class=0x020000 card=0x10408086 chip=0x12298086 rev=0x10
hdr=0x00
vendor = 'Intel Corporation'
device = '82550/1/7/8/9 EtherExpress PRO/100(B) Ethernet Adapter'
class = network
subclass = ethernet
Will that always translate the same regardless of running 4.x vs 5.x vs
... ? If so, you are right, that does greatly simplify things ... I just
wasn't 100% certain ...
----
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
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