etherboot-developers

[Etherboot-developers] eepro100 driver strange behaviour..

[atul s. <atu...@re...>]

I am trying to use etherboot for net booting using
82557 network card.

my driver is eepro100.c by R.E.wolff that is a scaled down version 
of donald becker one.
this driver doesn't uses any interrupt and packet reception is 
polling driven.

resource assignment for pci base addreses are:

BAR0 - 0x60000000
BAR1 - 0x18800001
BAR2 - 0x62000000

these addresses are as per the mips idt manual.
also virt_to_bus are confirmed to be o.k

i am able to correctly read MAC address for card.

also packet reception is o.k , so the pci bus to memory trasaction 
is taking place.

my problem is in packet trasmission i should get txfd.status to 
become  nonzero for indicating packet trasfer has happened but it 
never happens and my driver hangs there for ever.

when debugged i saw from very begining status as 0090
.

as per eepro manual status 0090 indicates "NO RESOURCE"

but i am unable to conclude what it means..

can any body help..?

Best Regards,



__________________________________________________________
Give your Company an email address like
ravi @ ravi-exports.com.  Sign up for Rediffmail Pro today!
Know more. http://www.rediffmailpro.com/signup/

[Etherboot-developers] eepro100 driver strange behaviour..

[atul s. <atu...@re...>]

since i amn't subscribed to list pls. cc any reply to me.

I am trying to use etherboot for net booting using
82557 network card.

my driver is eepro100.c by R.E.wolff that is a scaled down version 
of donald becker one.
this driver doesn't uses any interrupt and packet reception is 
polling driven.

resource assignment for pci base addreses are:

BAR0 - 0x60000000
BAR1 - 0x18800001
BAR2 - 0x62000000

these addresses are as per the mips idt manual.
also virt_to_bus are confirmed to be o.k

i am able to correctly read MAC address for card.

also packet reception is o.k , so the pci bus to memory trasaction 
is taking place.

my problem is in packet trasmission i should get txfd.status to 
become  nonzero for indicating packet trasfer has happened but it 
never happens and my driver hangs there for ever.

when debugged i saw from very begining status as 0090
.

as per eepro manual status 0090 indicates "NO RESOURCE"

but i am unable to conclude what it means..

can any body help..?

Best Regards,



__________________________________________________________
Give your Company an email address like
ravi @ ravi-exports.com.  Sign up for Rediffmail Pro today!
Know more. http://www.rediffmailpro.com/signup/

Re: [Etherboot-developers] eepro100 driver strange behaviour..

[Eric W B. <ebi...@ln...>]

"atul srivastava" <atu...@re...> writes:

> since i amn't subscribed to list pls. cc any reply to me.

Once.  Are you running this on an embedded mips platform?
Normally traffic is kept on the list.

> I am trying to use etherboot for net booting using
> 82557 network card.
> 
> my driver is eepro100.c by R.E.wolff that is a scaled down version of donald
> becker one.
> this driver doesn't uses any interrupt and packet reception is polling driven.
> 
> resource assignment for pci base addreses are:
> 
> BAR0 - 0x60000000
> BAR1 - 0x18800001
> BAR2 - 0x62000000
> 
> these addresses are as per the mips idt manual.
> also virt_to_bus are confirmed to be o.k

Does your driver match the newest version in the development tree 5.1.2rc3?
Otherwise there is a missing virt_to_bus call.
 
> i am able to correctly read MAC address for card.
> 
> also packet reception is o.k , so the pci bus to memory trasaction is taking
> place.
> 
> my problem is in packet trasmission i should get txfd.status to become  nonzero
> for indicating packet trasfer has happened but it never happens and my driver
> hangs there for ever.
> 
> when debugged i saw from very begining status as 0090
> .
> 
> as per eepro manual status 0090 indicates "NO RESOURCE"
> 
> but i am unable to conclude what it means..
> 
> can any body help..?

Of the top of my head I would say it is the missing virt_to_bus call
in the stable version of the tree.

Eric