disable 64-bit dma for one PCI slot only?

[Artem Belevich]

On Tue, Jul 19, 2011 at 6:31 AM, John Baldwin <jhb at freebsd.org> wrote:
> The only reason it might be nice to stick with two fields is due to the line
> length (though the first line is over 80 cols even in the current format).  Here
> are two possible suggestions:
>
> old:
>
> hostb0 at pci0:0:0:0:      class=0x060000 card=0x20108086 chip=0x01008086 rev=0x09 hdr=0x00
> pcib1 at pci0:0:1:0:       class=0x060400 card=0x20108086 chip=0x01018086 rev=0x09 hdr=0x01
> pcib2 at pci0:0:1:1:       class=0x060400 card=0x20108086 chip=0x01058086 rev=0x09 hdr=0x01
> none0 at pci0:0:22:0:      class=0x078000 card=0x47428086 chip=0x1c3a8086 rev=0x04 hdr=0x00
> em0 at pci0:0:25:0:        class=0x020000 card=0x00008086 chip=0x15038086 rev=0x04 hdr=0x00
> ...
>
> A)
>
> hostb0 at pci0:0:0:0:      class=0x060000 vendor=0x8086 device=0x0100 subvendor=0x8086 subdevice=0x2010 rev=0x09 hdr=0x00
> pcib1 at pci0:0:1:0:       class=0x060400 vendor=0x8086 device=0x0101 subvendor=0x8086 subdevice=0x2010 rev=0x09 hdr=0x01
> pcib2 at pci0:0:1:1:       class=0x060400 vendor=0x8086 device=0x0105 subvendor=0x8086 subdevice=0x2010 rev=0x09 hdr=0x01
> none0 at pci0:0:22:0:      class=0x078000 vendor=0x8086 device=0x1c3a subvendor=0x8086 subdevice=0x4742 rev=0x04 hdr=0x00
> em0 at pci0:0:25:0:        class=0x020000 vendor=0x8086 device=0x1503 subvendor=0x8086 subdevice=0x0000 rev=0x04 hdr=0x00
> ...
>
> B)
>
> hostb0 at pci0:0:0:0:      class=0x060000 devid=0x8086:0100 subid=0x8086:2010 rev=0x09 hdr=0x00
> pcib1 at pci0:0:1:0:       class=0x060400 devid=0x8086:0101 subid=0x8086:2010 rev=0x09 hdr=0x01
> pcib2 at pci0:0:1:1:       class=0x060400 devid=0x8086:0105 subid=0x8086:2010 rev=0x09 hdr=0x01
> none0 at pci0:0:22:0:      class=0x078000 devid=0x8086:1c3a subid=0x8086:4742 rev=0x04 hdr=0x00
> em0 at pci0:0:25:0:        class=0x020000 devid=0x8086:1503 subid=0x8086:0000 rev=0x04 hdr=0x00
> ...
>
> I went with vendor word first for both A) and B) as in my experience that is
> the more common ordering in driver tables, etc.

Do we need to print (class|devid|device|subvendor|etc.)= on every
line? IMHO they belong to a header line. Something like this:

Driver Handle           Class    Vnd:Dev     Sub Vnd:Dev Rev  Hdr
------------------------------------------------------------------
hostb0 pci0:0:0:0       0x060000 0x8086:0100 0x8086:2010 0x09 0x00
pcib1  pci0:0:1:0       0x060400 0x8086:0101 0x8086:2010 0x09 0x01
pcib2  pci0:0:1:1       0x060400 0x8086:0105 0x8086:2010 0x09 0x01
none0  pci0:0:22:0      0x078000 0x8086:1c3a 0x8086:4742 0x04 0x00
em0    pci0:0:25:0      0x020000 0x8086:1503 0x8086:0000 0x04 0x00

--Artem