Christian Kaiser wrote:
> Hi all,
>
> I am currently porting a driver from Linux to Solaris.
>
> The BAR description in the PCI config space looks like this:
>
> BAR0, Offset 0x10, Value 0xcbdc0000
> BAR1, Offset 0x14, Value 0x00000000
> BAR2, Offset 0x18, Value 0xc4000000
> BAR3, Offset 0x1c, Value 0xc0000000
> BAR4, Offset 0x20, Value 0xbc000000
> BAR5, Offset 0x24, Value 0xb8000000
>
> ddi_dev_nregs returns 6 register sets what is correct but for
> ddi_dev_regsize I don't get the zero size value for BAR1 (which would be
> correct) but the size of BAR2. I get an error running ddi_dev_regsize
> with rnumber=6. It seems that Solaris renumbers the register sets in my
> special case where one BAR1 value is 0x0 and the size is 0. The same
> applies to ddi_regs_map_setup.
>
> Is my assumption concerning the renumbering correct? Isn't that confusing?
>
> Regards,
> Christian
>
>
For PCI devices, the starting index is 1, not 0. (0 is reserved to
indicate PCI configuration space.)
I don't know why with rnumber 6 you get an error -- that's surprising.
I'd have expected rnumber 6 to return the settings for BAR5 above.
-- Garrett
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