[linux-dvb] Re: Network: a new hope

[Steffen Barszus <st_barszus@gmx.de>]

Am Montag, 3. November 2003 13:45 schrieben Sie:
> From: "Michael Hunold" <hunold@convergence.de>
>
> > Yes, as you probably know this is called "graceful recovery" and
> > makes perfect sense for video data: if the data cannot be delivered
> > (for example because the PCI bus is hogged by something else and
> > the FIFOs overflow) then the saa7146 throws away the data and
> > advances the pointer until the bus becomes free again.
>
> Some issues seem more like a bug than "graceful recovery",
> particularly the fact that the SAA7146A will sometimes not _finish_
> DMA transfers. With burst and FIFO threshold set to 4 Dwords, the
> chip _randomly_ does not DMA the last 2-8 Dwords. I'd say the
> SAA7146A's PCI logic is simply bugged.


Ok that explains my problems here too I guess. I wrote some months back, 
that i get transferrates of 3-4k with filiago. That problem is at least 
reproducible by others ( I have 2 people that have that problem too, 
all technotrend premium cards) Video works fine here (I use it for 
every day use) but IPviaSky is a no go. I had the hope i could do some 
tests with a skystar2, but the test device i have here is a skystar 2 
rev 2.6b . So I wonder at the moment if there are people that can use 
IPviaSky under Linux at all. I was told to get in contact with tellique 
people for this issue, but that isnt easy either. At least linux-dvb 
,ailinglist is very interesting for me the last days. ;)

Greets

Steffen




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