Hi Jakub,
On Sat, Sep 5, 2020 at 2:07 AM Jakub Kicinski <k...@kernel.org> wrote:
>
> On Fri, 4 Sep 2020 12:29:04 +0000 Sunil Kovvuri Goutham wrote:
> > > >No, there are 3 drivers registering to 3 PCI device IDs and there can
> > > >be many instances of the same devices. So there can be 10's of instances
> > > >of
> > > AF, PF and VFs.
> > >
> > > So you can still have per-pci device devlink instance and use the
> > > tracepoint
> > > Jakub suggested.
> > >
> >
> > Two things
> > - As I mentioned above, there is a Crypto driver which uses the same mbox
> > APIs
> > which is in the process of upstreaming. There also we would need trace
> > points.
> > Not sure registering to devlink just for the sake of tracepoint is proper.
> >
> > - The devlink trace message is like this
> >
> > TRACE_EVENT(devlink_hwmsg,
> > . . .
> > TP_printk("bus_name=%s dev_name=%s driver_name=%s incoming=%d
> > type=%lu buf=0x[%*phD] len=%zu",
> > __get_str(bus_name), __get_str(dev_name),
> > __get_str(driver_name), __entry->incoming, __entry->type,
> > (int) __entry->len, __get_dynamic_array(buf),
> > __entry->len)
> > );
> >
> > Whatever debug message we want as output doesn't fit into this.
>
> Make use of the standard devlink tracepoint wherever applicable, and you
> can keep your extra ones if you want (as long as Jiri don't object).
Sure and noted. I have tried to use devlink tracepoints and since it
could not fit our purpose I used these.
Thanks,
Sundeep
