[dpdk-dev] rte_vfio_container_dma_map/unmap functions

Burakov, Anatoly anatoly.burakov at intel.com
Mon Apr 20 16:07:38 CEST 2020


On 19-Apr-20 2:10 PM, Thomas Monjalon wrote:
> 19/04/2020 15:09, Thomas Monjalon:
>> 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.
> 
> +Cc Bruce and David
> 
> 

...and have a Linux-specific ABI?

-- 
Thanks,
Anatoly


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