Re: [PATCH v2 2/3] test/bbdev: fix build issue with optional build flag

[Maxime Coquelin <maxime.coquelin@redhat.com>]

On 12/6/22 20:14, Nicolas Chautru wrote:
> Missing implementation for offload test with FFT.
> Only build when the optional build flag RTE_BBDEV_OFFLOAD_COST
> is set.
> 
> Fixes: 0acdb9866756 ("test/bbdev: add FFT operations cases")

Same here, adding stable@dpdk.org.

> Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
> ---
>   app/test-bbdev/test_bbdev_perf.c | 82 ++++++++++++++++++++++++++++++++
>   1 file changed, 82 insertions(+)
> 
> diff --git a/app/test-bbdev/test_bbdev_perf.c b/app/test-bbdev/test_bbdev_perf.c
> index 1859952901..b2e536b5e3 100644
> --- a/app/test-bbdev/test_bbdev_perf.c
> +++ b/app/test-bbdev/test_bbdev_perf.c
> @@ -4940,6 +4940,88 @@ get_bbdev_queue_stats(uint16_t dev_id, uint16_t queue_id,
>   	return 0;
>   }
>   
> +static int
> +offload_latency_test_fft(struct rte_mempool *mempool, struct test_buffers *bufs,
> +		struct rte_bbdev_fft_op *ref_op, uint16_t dev_id,
> +		uint16_t queue_id, const uint16_t num_to_process,
> +		uint16_t burst_sz, struct test_time_stats *time_st)
> +{
> +	int i, dequeued, ret;
> +	struct rte_bbdev_fft_op *ops_enq[MAX_BURST], *ops_deq[MAX_BURST];
> +	uint64_t enq_start_time, deq_start_time;
> +	uint64_t enq_sw_last_time, deq_last_time;
> +	struct rte_bbdev_stats stats;
> +
> +	for (i = 0, dequeued = 0; dequeued < num_to_process; ++i) {
> +		uint16_t enq = 0, deq = 0;
> +
> +		if (unlikely(num_to_process - dequeued < burst_sz))
> +			burst_sz = num_to_process - dequeued;
> +
> +		rte_bbdev_fft_op_alloc_bulk(mempool, ops_enq, burst_sz);
> +		if (test_vector.op_type != RTE_BBDEV_OP_NONE)
> +			copy_reference_fft_op(ops_enq, burst_sz, dequeued,
> +					bufs->inputs,
> +					bufs->hard_outputs, bufs->soft_outputs,
> +					ref_op);
> +
> +		/* Start time meas for enqueue function offload latency */
> +		enq_start_time = rte_rdtsc_precise();
> +		do {
> +			enq += rte_bbdev_enqueue_fft_ops(dev_id, queue_id,
> +					&ops_enq[enq], burst_sz - enq);
> +		} while (unlikely(burst_sz != enq));
> +
> +		ret = get_bbdev_queue_stats(dev_id, queue_id, &stats);
> +		TEST_ASSERT_SUCCESS(ret,
> +				"Failed to get stats for queue (%u) of device (%u)",
> +				queue_id, dev_id);
> +
> +		enq_sw_last_time = rte_rdtsc_precise() - enq_start_time -
> +				stats.acc_offload_cycles;
> +		time_st->enq_sw_max_time = RTE_MAX(time_st->enq_sw_max_time,
> +				enq_sw_last_time);
> +		time_st->enq_sw_min_time = RTE_MIN(time_st->enq_sw_min_time,
> +				enq_sw_last_time);
> +		time_st->enq_sw_total_time += enq_sw_last_time;
> +
> +		time_st->enq_acc_max_time = RTE_MAX(time_st->enq_acc_max_time,
> +				stats.acc_offload_cycles);
> +		time_st->enq_acc_min_time = RTE_MIN(time_st->enq_acc_min_time,
> +				stats.acc_offload_cycles);
> +		time_st->enq_acc_total_time += stats.acc_offload_cycles;
> +
> +		/* give time for device to process ops */
> +		rte_delay_us(WAIT_OFFLOAD_US);
> +
> +		/* Start time meas for dequeue function offload latency */
> +		deq_start_time = rte_rdtsc_precise();
> +		/* Dequeue one operation */
> +		do {
> +			deq += rte_bbdev_dequeue_fft_ops(dev_id, queue_id,
> +					&ops_deq[deq], enq);
> +		} while (unlikely(deq == 0));
> +
> +		deq_last_time = rte_rdtsc_precise() - deq_start_time;
> +		time_st->deq_max_time = RTE_MAX(time_st->deq_max_time,
> +				deq_last_time);
> +		time_st->deq_min_time = RTE_MIN(time_st->deq_min_time,
> +				deq_last_time);
> +		time_st->deq_total_time += deq_last_time;
> +
> +		/* Dequeue remaining operations if needed*/
> +		while (burst_sz != deq)
> +			deq += rte_bbdev_dequeue_fft_ops(dev_id, queue_id,
> +					&ops_deq[deq], burst_sz - deq);
> +
> +		rte_bbdev_fft_op_free_bulk(ops_enq, deq);
> +		dequeued += deq;
> +	}
> +
> +	return i;
> +}
> +
> +
>   static int
>   offload_latency_test_dec(struct rte_mempool *mempool, struct test_buffers *bufs,
>   		struct rte_bbdev_dec_op *ref_op, uint16_t dev_id,

Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime