Unlike igb_uio, VFIO interrupt type is not set by kernel module
parameters but is set up via ioctl() calls at runtime. This warrants
a new EAL command-line parameter. It will have no effect if VFIO is
not compiled, but will set VFIO interrupt type to either "legacy" or
"msix" if VFIO support is com
I really wish the code did automatic fall back based on PCI config. It is
possible to know the right mode, and do the right thing.
Rather than punting the problem out to command line which is totally
unusable in hot plug and generic application.
On Mon, May 19, 2014 at 8:51 AM, Anatoly Burakov
wr
Hi Stephen,
> I really wish the code did automatic fall back based on PCI config. It is
> possible to know the right mode, and do the right thing.
> Rather than punting the problem out to command line which is totally unusable
> in hot plug and generic application.
You mean we should use whatev
On Tue, 20 May 2014 08:33:43 +
"Burakov, Anatoly" wrote:
> Hi Stephen,
>
> > I really wish the code did automatic fall back based on PCI config. It is
> > possible to know the right mode, and do the right thing.
> > Rather than punting the problem out to command line which is totally
> > u
Hi Stephen,
> I am not sure that MSI-X has any advantage with only one IRQ, so MSI would
> do.
Igb_uio doesn't support MSI, so I never included MSI support. It can be added
though, but I don't see much point.
> Then have the code look at the PCI capability of device and fallback to INTX
> if
>
Originally igb_uio had code for MSI, but it was broken.
See my patches which fixed that and several other bugs.
On Tue, May 20, 2014 at 8:26 PM, Burakov, Anatoly wrote:
> Hi Stephen,
>
> > I am not sure that MSI-X has any advantage with only one IRQ, so MSI
> would
> > do.
>
> Igb_uio doesn't s
2014-05-19 16:51, Anatoly Burakov:
> Unlike igb_uio, VFIO interrupt type is not set by kernel module
> parameters but is set up via ioctl() calls at runtime. This warrants
> a new EAL command-line parameter. It will have no effect if VFIO is
> not compiled, but will set VFIO interrupt type to eithe
Anatoly Burakov anatoly.burakov at intel.com
Mon May 19 17:51:43 CEST 2014
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Hi Thomas,
> > + }
> > else if (!strcmp(lgopts[option_index].name,
> OPT_CREATE_UIO_DEV))
>
> another code style issue reported by checkpatch.pl ;)
>
> But it should be fixed by removing this code as Stephen suggests.
I'm not sure this could should be remov
2014-05-28 10:35, Burakov, Anatoly:
> Hi Thomas,
>
> > > + }
> > >
> > > else if (!strcmp(lgopts[option_index].name,
> >
> > OPT_CREATE_UIO_DEV))
> >
> > another code style issue reported by checkpatch.pl ;)
> >
> > But it should be fixed by removing this code
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