[dpdk-dev] rte_vfio_container_dma_map/unmap functions

Thomas Monjalon thomas at monjalon.net
Sun Apr 19 15:09:09 CEST 2020

17/04/2020 16:09, Burakov, Anatoly:
> On 17-Apr-20 3:05 PM, Burakov, Anatoly wrote:
> > On 22-Mar-20 5:20 PM, Tal Shnaiderman wrote:
> >> Hi Anatoly,
> >>
> >> I’m working on the implementation of bus/pci driver for Windows, 
> >> pci_common.c uses the titled functions however they are relevant only 
> >> for Linux OS.
> >>
> >> I’m wondering if the implementation of those functions should be moved 
> >> to a Linux specific area since FreeBSD (and now Windows) are forced to 
> >> implemented those in the current state.
> Unfortunately, we don't have a generic API for these, but since we 
> export a single API on all platforms, either all platforms have to 
> implement these functions, or none of them do. There's simply no way to 
> avoid implementing stubs for these functions, short of coming up with a 
> generic API that would replace these. Given that this API is heavily 
> Linux specific, i don't see that happening.

Because it is Linux specific, we should not force FreeBSD and Windows
having stubs. Can we move VFIO calls in Linux-specific files?

I think rte_vfio.h should be moved in lib/librte_eal/linux/include.

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