Re: dmascc ?

[Bernard Pidoux <pidoux@ccr.jussieu.fr>]

Hi,

Is an SMP kernel mandatory for running a multithreaded P4 CPU or 
would'not a single CPU kernel make it  (with a 50% performance reduction) ?

73 de bernard, f6bvp



Ralf Baechle DL5RB wrote:
> On Sun, Nov 11, 2007 at 11:32:40PM -0800, Niall Parker wrote:
> 
>> It's been a while since I've tried a new kernel with my PI2 cards and 
>> just discovered that while the source is still included in 
>> drivers/net/hamradio/dmascc.c , it isn't possible to select via make 
>> menuconfig even when CONFIG_EXPERIMENTAL is set.
>>
>> I hunted through the linux-hams archives and it looks like the code is 
>> still being updated, is there some other reason why dmascc is no longer 
>> a config option ?
> 
> You can only configure the driver when building a uniprocessor kernel for
> an ISA system and AX25 must also be enabled.  Even an oldfashioned
> hyperthreaded P4 needs an SMP kernel these days so this driver is hardly
> being offered anymore and I guess that's the problem you're having.
> 
>   Ralf
> 
> 73 de DL5RB op Ralf
> 
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