From owner-freebsd-hackers  Tue Jul 21 15:31:55 1998
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Message-ID: <19980722001156.C2578@mi.uni-koeln.de>
Date: Wed, 22 Jul 1998 00:11:56 +0200
From: Stefan Esser <se@FreeBSD.ORG>
To: Graham Wheeler <gram@cdsec.com>, hackers@FreeBSD.ORG
Cc: Stefan Esser <se@FreeBSD.ORG>
Subject: Re: Building a kernel with PCI devices
Mail-Followup-To: Graham Wheeler <gram@cdsec.com>, hackers@FreeBSD.ORG
References: <199807211322.PAA03583@cdsec.com>
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In-Reply-To: <199807211322.PAA03583@cdsec.com>; from Graham Wheeler on Tue, Jul 21, 1998 at 03:22:43PM +0200
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On 1998-07-21 15:22 +0200, Graham Wheeler <gram@cdsec.com> wrote:
> Hi all
> 
> I was just wondering: if one is creating a config file for a kernel
> that should support multiple 3Com 3C59x NICs, should one have multiple 
> vx entries in the config? I have built a kernel with:
> 
>   device vx0
>   device vx1
>   device vx2
> 
> The resulting kernel does support multiple cards, but I thought that
> it may be possible to use just a single vx entry and still be able to
> support multiple cards. The same question applies to the tx, fxp and
> de drivers. Does anyone know?

Yes, sure, I do ...

Just use one single entry per driver.

All data structures are dynamically allocated
by each driver for each device that is found
during the PCI bus scan.

There currently is no way to associate "flags"
with PCI devices in the way this can be done 
for ISA device entries in the config file. In
case you want to assign fixed device names to
cards in certain PCI slots, there is preliminary
support in pci_compat.c. But this is more useful
for SCSI cards, I assume. (Prevents cleaning of
an assumed scratch drive if some host adapter has
been removed from a system and another one takes
its PCI device name ...) 
But even then you still need only one line per
PCI driver in the kernel config file ...

Regards, STefan

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