Re: [Etherboot-users] Re: Problem booting e1000 card : No IP address - Workaround

[Timothy L. <tl...@ro...>]

Georg Baum wrote:
> Am Dienstag, 26. Juli 2005 19:44 schrieb Timothy Legge:
> 
> 
>>From a quick review, I would say that the hw->mac_type might be more
>>useful to you than the pci device id.  It would probably be faster to
>>track what is missing.
> 
> 
> You are right. However, for the cards in question this is a 1:1 mapping:
> 
>          Mathias        Ulrich            Ulisses       Georg
> dev id   0x1008         0x1076            0x100E        0x1019
>          82544EI_COPPER 82541GI           82540EM       82547EI
> mac_type e1000_82544    e1000_82541_rev_2 e1000_82540   e1000_82547
> phy_id   M88E1000_I     IGP01E1000_I      M88E1011_I    IGP01E1000_I
> phy_type e1000_phy_m88  e1000_phy_igp     e1000_phy_m88 e1000_phy_igp
> 
> It seems that the problem of Mathias, Ulrich and Ulisses is indeed the 
> same: All three mac types are listed in the reset switch case that calls 
> E1000_WRITE_REG_IO instead of E1000_WRITE_REG, and the reports show that 
> this is the failing place in the code. My (working) card uses 
> E1000_WRITE_REG.
> 
> The switch in the reset routine was added last year because of a report 
> from James Pearson that it was needed for the 82546EB (mac type 
> e1000_82546), so we can't simply switch everything back to 
> E1000_WRITE_REG again.
> 
> I checked again with the current Linux driver, and could not find any 
> obvious reason for this difference, so I propose the attached fix for 
> now.

There are a few places in the EB driver where things are ifdefed out. 
Are any of them important?

Can you identify any this alike (are all the problem cards PCI-X?)? 
There may be work arounds for those specific things.

Good luck.

Tim