Re: [PATCH 00/10] Fixes for DP8393X SONIC device emulation

[Aleksandar Markovic]

On Saturday, December 21, 2019, Finn Thain <address@hidden> wrote:
> On Fri, 20 Dec 2019, Laurent Vivier wrote:
>
> > Le 20/12/2019 ? 12:38, Aleksandar Markovic a ?crit?:
> > > On Sat, Dec 14, 2019 at 2:29 AM Finn Thain <address@hidden> wrote:
> > >>
> > >> Hi All,
> > >>
> > >> There is a bug in the DP8393X emulation that can stop packet reception.
> > >>
> > >> Whilst debugging that issue I found that the receiver algorithm differs
> > >> from the one described in the National Semiconductor datasheet.
> > >>
> > > 
> > > Finn, could you please provide the link to the exact datasheet that
> > > you used for reference, so that we are on the same page while looking
> > > at your code?
> > 
> > According to his comments ,"National Semiconductor DP83932C" and
> > sections seem to be the same, I think the datasheet is:
> > 
> > https://www.eit.lth.se/fileadmin/eit/courses/datablad/Periphery/Communication/DP83932C.pdf
> > 
>
> Yes. I know of 3 datasheets from National Semiconductor,
>
> 11719  DP83934CVUL-20/25 MHz SONIC-T Systems-Oriented Network Interface 
> Controller with Twisted Pair Interface
> 10492  DP83932C-20/25/33 MHz SONIC Systems-Oriented Network Interface 
> Controller
> 11722  DP83916 SONIC-16 Systems-Oriented Network Interface Controller
>
> The publication numbered 10492 is the one that Laurent linked to. It and 
> 11722 both have the same table of contents. The references I gave in the 
> patch descriptions are applicable to these. (Having said that, I see now 
> that I did mess up one reference. I'll fix it.)
>
> The "1995 National Ethernet Databook" on bitsavers has more information. 
> https://mirrorservice.org/sites/www.bitsavers.org/components/national/_dataBooks/1995_National_Ethernet_Databook.pdf
>
> --

Finn,

I truly appreciate your detailed response.

Aleksandar

> > Thanks,
> > Laurent
> >