Re: [Qemu-devel] Re: QEMU pcnet 6/28 patch against 6/30 CVS - not working?

[Brad Watson]

Hi Anthony,

The patch installed and compiled cleanly on my
slackware based 9.x box. I experimented a little bit
with it and made the following "quick-n-dirty" cursory
comparison beteen the QEMU realtek-8029 and pcnet
"cards" via an scp of 10MB file between host & guest: 

openbsd x86 3.5:
  pcnet: 238kb/s "average."
  realtek-8029: 276kb/s "average."

freebsd x86 5.2.1:
  pcnet: 289kb/s "average."
  realtec-8029: 262kb/s "average"

netbsd x86 1.6.1:
  pcnet: no data (hangs). note: machid is getting set
now, ping works, but little else appears to....
  realtec-8029: 320kb/s "average" note: occasional
console message: ne2: remote transmit DMA failed to
complete

I'm interested in experimenting w/ adding an etherboot
rom to your pcnet code, and a tftp server into the
slirp code to pass the -kernel and -initrd parameter
arguments to a network boot client via tftp.  Can you
give me any quick pointers on hooking the rom into
your code ? 

--- Antony T Curtis <address@hidden>
wrote:
> Hi,
> 
> This new patch works for me with Mandrake 10
> Official
> 
> It should apply cleanly against QEMU CVS and
> hopefully compile cleanly
> on Linux as well as FreeBSD. I have also implemented
> the TX-ring poll so
> in theory, it should be fully functional.
> 
> On Fri, 2004-07-02 at 20:15, David Black wrote:
> > Thanks - yes, it's the 'pcnet' driver, and it
> comes up in 32 bit mode:
> > 
> > Jul  1 14:04:22 vs1a kernel: pcnet32.c:v1.27b
> 01.10.2002
> > address@hidden
> > Jul  1 14:04:22 vs1a kernel: PCI: Found IRQ 9 for
> device 0000:00:03.0
> > Jul  1 14:04:22 vs1a kernel: PCI: Setting latency
> timer of device
> > 0000:00:03.0 to 64
> > Jul  1 14:04:22 vs1a kernel: pcnet32: PCnet/PCI II
> 79C970A at 0xc020,
> > warning: CSR address invalid,
> > Jul  1 14:04:22 vs1a kernel:     using instead
> PROM address of 52 54
> > 00 12 34 56 assigned IRQ 9.
> > Jul  1 14:04:22 vs1a kernel: eth0: registered as
> PCnet/PCI II 79C970A
> > Jul  1 14:04:22 vs1a kernel: pcnet32: 1
> cards_found.
> > 
> > This driver is attractive to me because of the
> promise of decreased
> > latency.  I get occasional data corruption with
> the ne2k-pci driver,
> > too.
> > 
> > Dave
> > 
> > Antony T Curtis wrote: 
> > > On Thu, 2004-07-01 at 20:54, David Black wrote:
> > >   
> > > > Hello,
> > > > 
> > > > I applied your AMD pcnet NIC patch dated 6/28,
> to the QEMU CVS snapshot 
> > > > from dad-answers.com dated 6/30.
> > > > 
> > > > The patch seems to apply well, with some
> manual patching needed on vl.c 
> > > > and Makefile.target, but nothing that looked
> problematic.
> > > >     
> > > The patch attached should apply more cleanly
> against current CVS.
> > > 
> > > I will try to see if it works any differently
> with running Linux. I
> > > assume you are using the pcnet32 driver, not the
> lance driver. Looking
> > > at the Linux driver source, it is able to use
> the DWORD I/O mode ... The
> > > FreeBSD, WinXP and OS/2 drivers appear to use
> the WORD I/O mode. It is
> > > possible that there is a bug in the simulation -
> particularly where the
> > > Linux driver probes the card in both modes. I
> will have to test it out.
> > > 
> > >   
> > FLAGS (\Seen))
> -- 
> Antony T Curtis <address@hidden>
> 

> ATTACHMENT part 2 application/x-gzip
name=qemu-pcnet.patch3.gz
> _______________________________________________
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> 


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