Re: [dpdk-dev] [PATCH] app/testpmd: add bus info when display port info

[Thomas Monjalon <thomas@monjalon.net>]

02/05/2017 03:58, Pei, Yulong:
> From: Thomas Monjalon [mailto:thomas@monjalon.net] 
> > 26/04/2017 06:31, Yulong Pei:
> > > Display pci device bus info when show port info.
> > > 
> > > Signed-off-by: Yulong Pei <yulong.pei@intel.com>
> > > ---
> > > --- a/app/test-pmd/config.c
> > > +++ b/app/test-pmd/config.c
> > > @@ -469,6 +469,14 @@ port_infos_display(portid_t port_id)
> > > 
> > >  	print_ethaddr("MAC address: ", &mac_addr);
> > >  	printf("\nDriver name: %s", dev_info.driver_name);
> > >  	printf("\nConnect to socket: %u", port->socket_id);
> > > 
> > > +	if (dev_info.pci_dev)
> > > +		printf("\nBus-info: %04x:%02x:%02x:%x",
> > > +			dev_info.pci_dev->addr.domain,
> > > +			dev_info.pci_dev->addr.bus,
> > > +			dev_info.pci_dev->addr.devid,
> > > +			dev_info.pci_dev->addr.function);
> > > +	else
> > > +		printf("\nBus-info: N/A");
> > 
> > The bus information must be managed in a more generic way.
> > The field pci_dev will probably be removed in a next release.
> 
> Could you kind to tell me more information about what does "more generic way" mean ?

It means we should not have a PCI field in ethdev.
We should have a function to print a bus info in each bus implementation,
and a generic function taking a rte_device object would call the right
bus-specific function via a function pointer.