Garrett D'Amore wrote: > 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.)
And I am aware of this. > 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. OK, let me clarify this: BAR layout ========== BAR 0 Offset 0x10 Value 0xcbdc0000 Size 256K BAR 1 Offset 0x14 Value 0x00000000 Size 0 BAR 2 Offset 0x18 Value 0xc4000000 Size 64M BAR 3 Offset 0x1c Value 0xc0000000 Size 64M BAR 4 Offset 0x20 Value 0xbc000000 Size 64M BAR 5 Offset 0x24 Value 0xb8000000 Size 64M Using ddi_dev_regsize() ======================= rnumber=1 Size 256K rnumber=2 Size 64M rnumber=3 Size 64M rnumber=4 Size 64M rnumber=5 Size 64M rnumber=6 n/a (error) Do you understand now what I meant by "renumbering"? Christian -- Christian Kaiser, Software Engineer, Dolphin Interconnect Solutions http//www.dolphinics.com _______________________________________________ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
