[dpdk-dev] [PATCH v4 4/4] eventdev: Add tests for event eth Rx adapter APIs
Rao, Nikhil
nikhil.rao at intel.com
Thu Oct 5 07:57:53 CEST 2017
On 10/3/2017 5:06 PM, Pavan Nikhilesh Bhagavatula wrote:
> On Fri, Sep 22, 2017 at 02:47:14AM +0530, Nikhil Rao wrote:
>
> Hi Nikhil,
>
>
>> Add unit tests for rte_event_eth_rx_adapter_xxx() APIs
>>
>> Signed-off-by: Nikhil Rao <nikhil.rao at intel.com>
>> ---
>> test/test/test_event_eth_rx_adapter.c | 399 ++++++++++++++++++++++++++++++++++
>> test/test/Makefile | 1 +
>> 2 files changed, 400 insertions(+)
>> create mode 100644 test/test/test_event_eth_rx_adapter.c
>>
>> diff --git a/test/test/test_event_eth_rx_adapter.c b/test/test/test_event_eth_rx_adapter.c
>> new file mode 100644
>> index 000000000..5d448dc27
> <snip>
>> +
>> +static int
>> +testsuite_setup(void)
>> +{
>> + int err;
>> + err = init_ports(rte_eth_dev_count());
>> + TEST_ASSERT(err == 0, "Port initialization failed err %d\n", err);
>> +
>> + struct rte_event_dev_config config = {
>> + .nb_event_queues = 1,
>> + .nb_event_ports = 1,
>> + .nb_events_limit = 4096,
>> + .nb_event_queue_flows = 1024,
>> + .nb_event_port_dequeue_depth = 16,
>> + .nb_event_port_enqueue_depth = 16
>> + };
>> +
>
> Some eth devices like octeontx[1] use event device to receive packets, So in
> this special case it would require to stop the event device before configuring
> the event device as it is already started in port_init.
>
> Calling rte_event_dev_stop(0) here would satisfy such use case.
Hi Pavan,
port_init is starting the eth device not the event device.
Moving init_ports to after rte_event_dev_configure should also work ?
>
> [1] http://dpdk.org/ml/archives/dev/2017-August/073982.html
>
>> + err = rte_event_dev_configure(0, &config);
>> + TEST_ASSERT(err == 0, "Event device initialization failed err %d\n",
>> + err);
>> +
>> + err = rte_event_eth_rx_adapter_caps_get(0, 0, &default_params.caps);
>> + TEST_ASSERT(err == 0, "Failed to get adapter cap err %d\n",
>
> <snip>
>
>> +
>> +static int
>> +adapter_queue_add_del(void)
>> +{
>> + int err;
>> + struct rte_event ev;
>> + uint32_t cap;
>> +
>> + struct rte_event_eth_rx_adapter_queue_conf queue_config;
>> +
>> + err = rte_event_eth_rx_adapter_caps_get(0, 0, &cap);
>> + TEST_ASSERT(err == 0, "Expected 0 got %d", err);
>> +
>> + ev.queue_id = 0;
>> + ev.sched_type = RTE_SCHED_TYPE_ATOMIC;
>> + ev.priority = 0;
>> +
>> + queue_config.rx_queue_flags = 0;
>> + if (!(cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_FLOW_ID)) {
>> + ev.flow_id = 1;
>> + queue_config.rx_queue_flags =
>> + RTE_EVENT_ETH_RX_ADAPTER_QUEUE_FLOW_ID_VALID;
>> + }
>> + queue_config.ev = ev;
>> + queue_config.servicing_weight = 1;
>> +
>
> As mentioned above[1] in case of HW accelerated coprocessors the eth_port has
> to be stopped before reconfiguring the eth queue to event queue remapping.
> Calling rte_eth_dev_stop(0) is required before trying to map the eth queue.
>
Is it possible to do this internally within the queue_add call ?
If not, the application would call rte_eth_dev_stop() if
RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT is set or do we need a
separate capability for this ?
>> + err = rte_event_eth_rx_adapter_queue_add(0, rte_eth_dev_count(),
>> + -1, &queue_config);
>> + TEST_ASSERT(err == -EINVAL, "Expected -EINVAL got %d", err);
>> +
>> + if (!(cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_SINGLE_EVENTQ)) {
>> + err = rte_event_eth_rx_adapter_queue_add(0, 0, 0,
>> + &queue_config);
>> + TEST_ASSERT(err == 0, "Expected 0 got %d", err);
>> +
>> + err = rte_event_eth_rx_adapter_queue_del(0, 0, 0);
>> + TEST_ASSERT(err == 0, "Expected 0 got %d", err);
>> +
>> + err = rte_event_eth_rx_adapter_queue_add(0, 0, -1,
>> + &queue_config);
>> + TEST_ASSERT(err == 0, "Expected 0 got %d", err);
>> +
>> + err = rte_event_eth_rx_adapter_queue_del(0, 0, -1);
>> + TEST_ASSERT(err == 0, "Expected 0 got %d", err);
>> + } else {
>> + err = rte_event_eth_rx_adapter_queue_add(0, 0, 0,
>> + &queue_config);
>> + TEST_ASSERT(err == -EINVAL, "Expected EINVAL got %d", err);
>> +
>>
> <snip>
>
> Thanks,
> Pavan
>
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