tco/rng support for Intel chipsets other than the i810?

tco/rng support for Intel chipsets other than the i810?

[jordan.breeding]

Do Intel chipsets other than the i810 have hardware support for rng/tco drivers 
(i845, i860, E7500)?  If so will Linux be getting drivers for the tco/rng 
capabilities of those chipsets some time in the future?  Thanks.

Jordan

Re: tco/rng support for Intel chipsets other than the i810?

[Jeff Garzik]

jordan.breeding@attbi.com wrote:

> Do Intel chipsets other than the i810 have hardware support for 
> rng/tco drivers
> (i845, i860, E7500)?  If so will Linux be getting drivers for the tco/rng
> capabilities of those chipsets some time in the future?  Thanks.



WRT RNG, more than just i810 supports RNG, yes.  There are several 
chipset ids in i810_rng.c which are for later versions after i810.

So, the driver is perhaps misnamed at this point :) but it's not a huge 
deal, so I haven't renamed it to i8xx_rng.c.  :)

	Jeff

Re: tco/rng support for Intel chipsets other than the i810?

[Ian Morgan]

On Mon, 18 Nov 2002, Jeff Garzik wrote:

> WRT RNG, more than just i810 supports RNG, yes.  There are several 
> chipset ids in i810_rng.c which are for later versions after i810.
> 
> So, the driver is perhaps misnamed at this point :) but it's not a huge 
> deal, so I haven't renamed it to i8xx_rng.c.  :)

Do you think I can just add an entry into the rng_pci_tbl[] for my 845PE
(8086, 2560) and have it work?

Regards,
Ian Morgan

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Re: tco/rng support for Intel chipsets other than the i810?

[Jeff Garzik]

Ian Morgan wrote:

> On Mon, 18 Nov 2002, Jeff Garzik wrote:
>
>
> >WRT RNG, more than just i810 supports RNG, yes.  There are several
> >chipset ids in i810_rng.c which are for later versions after i810.
> >
> >So, the driver is perhaps misnamed at this point :) but it's not a huge
> >deal, so I haven't renamed it to i8xx_rng.c.  :)
>
>
> Do you think I can just add an entry into the rng_pci_tbl[] for my 845PE
> (8086, 2560) and have it work?


I don't have the docs, so I'm guessing here, but it's entirely possible.

	Jeff

Re: tco/rng support for Intel chipsets other than the i810?

[H. Peter Anvin]

Followup to:  <3DD93CD2.10100@pobox.com>
By author:    Jeff Garzik <jgarzik@pobox.com>
In newsgroup: linux.dev.kernel
> 
> >
> > Do you think I can just add an entry into the rng_pci_tbl[] for my 845PE
> > (8086, 2560) and have it work?
> 
> I don't have the docs, so I'm guessing here, but it's entirely possible.
> 

FWIW, the Intel RNG isn't really in the chipset proper, but rather in
the "firmware hub", the glorified BIOS ROM.  The detection mechanism
is interesting, to say the least.

	-hpa
-- 
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