On Wed, May 31, 2023 at 10:44 AM Elena Agostini <eagost...@nvidia.com> wrote:
>
> > On Tue, May 30, 2023 at 1:48 PM eagost...@nvidia.com wrote:
>
> > >
>
> > > From: Elena Agostini eagost...@nvidia.com
>
> > >
>
> > > In DPDK 22.11 pci bus related structure have been hidden internally
>
> > > so the application doesn't have a direct access to those info anymore.
>
> > >
>
> > > This patch introduces a get function to retrieve a PCI address
>
> > > from an rte_device handler.
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> > >
>
> > > Signed-off-by: Elena Agostini eagost...@nvidia.com
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> >
>
> > (no need to Cc: stable, I removed it)
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> >
>
> > I would prefer we don't add specific bus API when there is an alternative.
>
> >
>
> > The PCI address is already reported as a string in the generic device
>
> > object name.
>
> > I checked the different ways this name is set and afaics, it is consistent:
>
> > - devarg case 
> > https://git.dpdk.org/dpdk/tree/drivers/bus/pci/pci_common.c#n112
>
> > + https://git.dpdk.org/dpdk/tree/drivers/bus/pci/pci_params.c#n117
>
> > - no devarg case
>
> > https://git.dpdk.org/dpdk/tree/drivers/bus/pci/pci_common.c#n115 +
>
> > https://git.dpdk.org/dpdk/tree/drivers/bus/pci/pci_common.c#n100
>
> >
>
> > Would that be enough for your usecase?
>
>
>
> No as I need to parse anyway the PCI address string in the form of 
> domain/bus/devid/function.

I am curious. Can you explain why you would need such information?

>
> Also, the device name can be changed as it’s exposed to application level.

?
If you mean the application can bust the device name, well, it's the
application problem.


-- 
David Marchand

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