[ipxe-devel] BCM5751M Question

[Wes Frazier]

Immensely thank you!

On Mon, 2011-09-19 at 16:45 +0100, Michael Brown wrote:
> On Sunday 18 Sep 2011 15:17:27 Wes Frazier wrote:
> > How can I determine if a network card supports a rom larger than 64kb?
> > How can I tell if a network card supports a mrom image?
> 
> You can tell this from the output of lspci -v.
> 
> To support a ROM (.rom or .mrom) larger than 64kB, the expansion ROM BAR must 
> be larger than 64kB.
> 
> To support a .mrom image, the card must:
> 
>   a) have an expansion ROM BAR at least as large as the .mrom image
>   b) have a memory BAR at least as large as the expansion ROM BAR
> 
> For example, suppose that your card has a 128kB expansion ROM BAR and a 256kB 
> memory BAR.  The card would then be able to support a .mrom image of up to 
> 128kB.
> 
> I've added a trivial Perl script to perform these calculations automatically:
> 
>   ./util/romcheck.pl
>   ...
>   00:1f.3 (8086:3a60)
>   00:1f.5 (8086:3a06)
>   01:00.0 (1186:4300) supports a 128kB .rom or .mrom
>   01:01.0 (11c1:5811)
> 
> Hope that helps.
> 
> Michael