2015-10-21 15:39, Alejandro Lucero: > On Wed, Oct 21, 2015 at 6:24 AM, David Marchand <david.marchand at 6wind.com> > wrote: > > Please, can you elaborate on the need for (yet another) uio driver, rather > > than make igb_uio work with your hardware ? [...] > I have been looking at the possibility of getting rid of nfp_uio. The fact > is our PMD can work without it, both for the PF and VF (not the PMD version > already submitted but one under development). The PF support requires not > using UIO at all, because the device is attached to the BSP driver. The > only problem with this approach is we do not have support for interrupts, > what is not critical (I can see other PMDs not having support for Link > Status Changes) but we do not like it as programs can register callbacks > for these interrupts which would not work at all. > > Interrupt support could be implemented in the BSP, doing the same UIO or > VFIO do, but this will require (minor) changes to DPDK for having another > intr_handle (not UIO, not VFIO). I do not know if other PMDs could also > make use of such a change but I guess that would help to accept those > changes.
We are going to have an external handler (used for mlx5): http://dpdk.org/ml/archives/dev/2015-October/024678.html Problem solved :) Is it possible to rework your PMD without nfp-uio? Thanks