[dpdk-dev] [PATCH v2 4/4] eventdev: add auto test for eth Tx adapter

[Rao, Nikhil]

> -----Original Message-----
> From: Pavan Nikhilesh [mailto:pbhagavatula at caviumnetworks.com]
> Sent: Wednesday, August 22, 2018 9:53 PM
> To: Rao, Nikhil <nikhil.rao at intel.com>; jerin.jacob at caviumnetworks.com;
> olivier.matz at 6wind.com
> Cc: dev at dpdk.org
> Subject: Re: [PATCH v2 4/4] eventdev: add auto test for eth Tx adapter
> 
> On Wed, Aug 22, 2018 at 09:43:02PM +0530, Rao, Nikhil wrote:
> > > > +       ev_qid = qcnt;
> > > > +       qconf.nb_atomic_flows = dev_info.max_event_queue_flows;
> > > > +       qconf.nb_atomic_order_sequences = 32;
> > > > +       qconf.schedule_type = RTE_SCHED_TYPE_ATOMIC;
> > > > +       qconf.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST;
> > > > +       qconf.event_queue_cfg = RTE_EVENT_QUEUE_CFG_SINGLE_LINK;
> > > > +       err = rte_event_queue_setup(TEST_DEV_ID, ev_qid, &qconf);
> > > > +       TEST_ASSERT_SUCCESS(err, "Failed to setup queue %u",
> > > > + ev_qid);
> > >
> > > On reconfigure, setup all the ports and queues so that the newly
> > > configured values are seen by them.
> >
> > Is that required since dev_conf matches dev_info except for the number
> > of queues ?
> 
> Some drivers require this as without port setup newly configured queues
> might not be visible.
> 
OK.

> >
> > >
> > > > +
> > > > +       err = rte_event_port_link(TEST_DEV_ID, ev_port, &ev_qid, NULL,
> 1);
> > > > +       TEST_ASSERT(err == 1, "Failed to link queue port %u",
> > > > +                   ev_port);
> > > > +
> > > > +       err = rte_event_eth_tx_adapter_start(TEST_INST_ID);
> > > > +       TEST_ASSERT(err == 0, "Expected 0 got %d", err);
> > > > +
> > > > +       err = rte_event_dev_service_id_get(0, &eid);
> > > > +       TEST_ASSERT(err == 0, "Expected 0 got %d", err);
> > >
> > > An event device might not be needing a service core, check the
> > > capabilities before requesting service id above.
> > >
> >
> > The internal_port capability is checked at the beginning of the
> > function, if its not set, I think its Ok to assume that we need a
> > service core ?
> 
> That check is to see if TX adapter requires service core, the above one is
> checking if eventdev requires serivce core.

Got it, I was misreading the comment.

Thanks,
Nikhil