On Tue, Aug 26, 2014 at 10:25:52AM -0400, Christos Zoulas wrote:
> I would probably extend pcictl with cfgread and cfgwrite commands.
Sure, once it works I can do that, but a first attempt just
ets EINVAL, any idea what can be wrong?
int fd;
struct pciio_bdf_cfgreg pbcr;
if ((fd = open("/dev/pci5", O_RDWR, 0)) == -1)
err(EX_OSERR, "open /dev/pci5 failed");
pbcr.bus = 5;
pbcr.device = 0;
pbcr.function = 0;
pbcr.cfgreg.reg = 0xe6b;
pbcr.cfgreg.val = 0x2e;
if (ioctl(fd, PCI_IOC_BDF_CFGWRITE, &pbcr) == -1)
err(EX_OSERR, "ioctl failed");
Inside the kernel, the only EINVAL is here:
if (bdfr->bus > 255 || bdfr->device >= sc->sc_maxndevs ||
bdfr->function > 7)
return EINVAL;
--
Emmanuel Dreyfus
m...@netbsd.org
