Re: Re: Re: <no subject>

Re: Re: Re: <no subject>

[joerg.beyer]

Zwane Mwaikambo <zwane@linuxpower.ca> schrieb am 25.08.02 14:10:12:
> On Sun, 25 Aug 2002 joerg.beyer@email.de wrote:
> 
> > you are right, I had no dma enabled. Now I recomiled the kernel with this
> > dma-related options:
> > 
> > CONFIG_BLK_DEV_IDEDMA_PCI=y
> > # CONFIG_BLK_DEV_IDEDMA_FORCED is not set
> > CONFIG_IDEDMA_PCI_AUTO=y
> > # CONFIG_IDEDMA_ONLYDISK is not set
> > CONFIG_BLK_DEV_IDEDMA=y
> > # CONFIG_IDEDMA_PCI_WIP is not set
> > # CONFIG_BLK_DEV_IDEDMA_TIMEOUT is not set
> > # CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set
> > CONFIG_BLK_DEV_ADMA=y
> > # CONFIG_HPT34X_AUTODMA is not set
> > CONFIG_IDEDMA_AUTO=y
> > # CONFIG_IDEDMA_IVB is not set
> > # CONFIG_DMA_NONPCI is not set
> > 
> > 
> > and I still get many many errors on the nic. Do I need something more in .config?
> 
> That should fix your slowdown during untarring/disk access, as for your 
> NIC problem looks like you might be having a receive FIFO overflow, so 
> perhaps the card stops processing incoming packets? I have no clue, 
> Jeff?

I set max_interrupt_work to higher values, 
e.g. 500 (instead of the default value 20) and the message in /var/log/messages
does not appear - no wonder. But I still get large numbes of RX errors and
RX overruns (these numbers are equal most of the time). So receiving
is to slow and brings RX overruns.

Is there anything I can do about it? 

It's a Athlon 1200 and that should be
fast enough to receive data on a single connection.

    still confused, but now on a higher level
    Joerg

Re: Re: Re: <no subject>

[joerg.beyer]

Zwane Mwaikambo <zwane@linuxpower.ca> schrieb am 25.08.02 14:10:12:
> On Sun, 25 Aug 2002 joerg.beyer@email.de wrote:
> 
> > you are right, I had no dma enabled. Now I recomiled the kernel with this
> > dma-related options:
> > 
> > CONFIG_BLK_DEV_IDEDMA_PCI=y
> > # CONFIG_BLK_DEV_IDEDMA_FORCED is not set
> > CONFIG_IDEDMA_PCI_AUTO=y
> > # CONFIG_IDEDMA_ONLYDISK is not set
> > CONFIG_BLK_DEV_IDEDMA=y
> > # CONFIG_IDEDMA_PCI_WIP is not set
> > # CONFIG_BLK_DEV_IDEDMA_TIMEOUT is not set
> > # CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set
> > CONFIG_BLK_DEV_ADMA=y
> > # CONFIG_HPT34X_AUTODMA is not set
> > CONFIG_IDEDMA_AUTO=y
> > # CONFIG_IDEDMA_IVB is not set
> > # CONFIG_DMA_NONPCI is not set
> > 
> > 
> > and I still get many many errors on the nic. Do I need something more in .config?
> 
> That should fix your slowdown during untarring/disk access, as for your 
> NIC problem looks like you might be having a receive FIFO overflow, so 
> perhaps the card stops processing incoming packets? I have no clue, 
> Jeff?
>
ok, now I am a step further: I have a testcase, where I used a 10MB file with random
content. I scp'd this file from another machine to the laptop:

joerg@laptop> scp otter_machine:/tmp/10mb_file /tmp/

with the 8139too NIC module this takes 8 minutes, 32 second and has
about 97500 error on the NIC, all are RC oerruns.

When I do the same with Donald Beckers rtl8139 module then the transfer
takes 10 seconds and has about 1865 errors - not perfect but much better.

I dont want to generalize, but for my case the rtl8139 module seems
to fit much better.

Thanks for your help
Joerg

Re: Re: Re: <no subject>

[Zwane Mwaikambo]

On Mon, 26 Aug 2002 joerg.beyer@email.de wrote:

> is it possible, that I made a simmilar mistake at the NIC module configuration
> and that I dont use dma at the NIC?

nope you didn't make a mistake there.

	Zwane

Re: Re: Re: <no subject>

[joerg.beyer]

Zwane Mwaikambo <zwane@linuxpower.ca> schrieb am 25.08.02 14:10:12:
> On Sun, 25 Aug 2002 joerg.beyer@email.de wrote:
> 
> > you are right, I had no dma enabled. Now I recomiled the kernel with this
> > dma-related options:
> > 
> > CONFIG_BLK_DEV_IDEDMA_PCI=y
> > # CONFIG_BLK_DEV_IDEDMA_FORCED is not set
> > CONFIG_IDEDMA_PCI_AUTO=y
> > # CONFIG_IDEDMA_ONLYDISK is not set
> > CONFIG_BLK_DEV_IDEDMA=y
> > # CONFIG_IDEDMA_PCI_WIP is not set
> > # CONFIG_BLK_DEV_IDEDMA_TIMEOUT is not set
> > # CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set
> > CONFIG_BLK_DEV_ADMA=y
> > # CONFIG_HPT34X_AUTODMA is not set
> > CONFIG_IDEDMA_AUTO=y
> > # CONFIG_IDEDMA_IVB is not set
> > # CONFIG_DMA_NONPCI is not set
> > 
> > 
> > and I still get many many errors on the nic. Do I need something more in .config?
> 
> That should fix your slowdown during untarring/disk access, as for your 
> NIC problem looks like you might be having a receive FIFO overflow, so 
> perhaps the card stops processing incoming packets? I have no clue, 
> Jeff?

is it possible, that I made a simmilar mistake at the NIC module configuration
and that I dont use dma at the NIC?

Put it the ohter way round: how could I see if the 8139too NIC module
uses DMA?

It is supposed to use DMA, right?

   Joerg