Re: wm(4) misreporting PCI bus properties

[Eduardo Horvath <eeh%NetBSD.org@localhost>]

On Wed, 15 Dec 2010, Matthias Scheler wrote:

> my ULTRA60 (running NetBSD/sparc64 5.99.41) reports its Intel Gigabit
> ethernet card like this:
> 
> wm0 at pci1 dev 1 function 0: Intel i82540EM 1000BASE-T Ethernet, rev. 2
> wm0: interrupting at ivec 0
> wm0: 32-bit 66MHz PCI bus
> wm0: 64 word (6 address bits) MicroWire EEPROM
> wm0: Ethernet address 00:07:e9:**:**:**
> makphy0 at wm0 phy 1: Marvell 88E1011 Gigabit PHY, rev. 3
> 
> What puzzles me is why it claims that it is using a "32-bit PCI bus".
> The 66MHz PCI slot in the ULTRA60 definitely supports 64-bit. Is that
> a problem with wm(4), with the PCI support for the ULTRA60's chipset
> or something else?

Most likely the wm0 card is not 64-bit PCI and does not support 64-bit 
address cycles.

Eduardo