(I reformatted the mail a bit) On Wed, May 31, 2023 at 10:51 AM Elena Agostini <eagost...@nvidia.com> wrote: > > 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. > > > > > Signed-off-by: Elena Agostini eagost...@nvidia.com
> > > > 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. > > > > 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? > Use-case is the Aerial 5G where two processes have to exchange info > about PCI devices sending messages according to some specific format. It seems strange that different processes need to exchange this bus level information. For dataplane, having a simpler metadata (like a portid maybe?) is better than a domain/bus/devid/function quartet. For controlplane, having an abstraction or a human readable string is probably better too. In any case, for what you request here, the application can parse the generic device name into a rte_pci_addr via rte_pci_addr_parse(). Is it not enough? -- David Marchand
