[dpdk-dev] [PATCH v3 07/14] test-bbdev: support for performance tests
Dave Burley
dave.burley at accelercomm.com
Fri Mar 13 11:58:57 CET 2020
Acked-by: Dave Burley <dave.burley at accelercomm.com>
On 04/03/2020 18:54, Nicolas Chautru wrote:
> From: Nic Chautru <nicolas.chautru at intel.com>
>
> Includes support for BLER wireless performance test with
> new arguments for SNR and number of iterations for 5G.
>
> Signed-off-by: Nic Chautru <nicolas.chautru at intel.com>
> ---
> app/test-bbdev/main.c | 29 ++-
> app/test-bbdev/main.h | 9 +-
> app/test-bbdev/test_bbdev_perf.c | 523 ++++++++++++++++++++++++++++++++++++++-
> 3 files changed, 548 insertions(+), 13 deletions(-)
>
> diff --git a/app/test-bbdev/main.c b/app/test-bbdev/main.c
> index 8a42115..ff65173 100644
> --- a/app/test-bbdev/main.c
> +++ b/app/test-bbdev/main.c
> @@ -29,6 +29,8 @@
> unsigned int num_ops;
> unsigned int burst_sz;
> unsigned int num_lcores;
> + double snr;
> + unsigned int iter_max;
> char test_vector_filename[PATH_MAX];
> bool init_device;
> } test_params;
> @@ -140,6 +142,18 @@
> return test_params.num_lcores;
> }
>
> +double
> +get_snr(void)
> +{
> + return test_params.snr;
> +}
> +
> +unsigned int
> +get_iter_max(void)
> +{
> + return test_params.iter_max;
> +}
> +
> bool
> get_init_device(void)
> {
> @@ -180,12 +194,15 @@
> { "test-cases", 1, 0, 'c' },
> { "test-vector", 1, 0, 'v' },
> { "lcores", 1, 0, 'l' },
> + { "snr", 1, 0, 's' },
> + { "iter_max", 6, 0, 't' },
> { "init-device", 0, 0, 'i'},
> { "help", 0, 0, 'h' },
> { NULL, 0, 0, 0 }
> };
> + tp->iter_max = DEFAULT_ITER;
>
> - while ((opt = getopt_long(argc, argv, "hin:b:c:v:l:", lgopts,
> + while ((opt = getopt_long(argc, argv, "hin:b:c:v:l:s:t:", lgopts,
> &option_index)) != EOF)
> switch (opt) {
> case 'n':
> @@ -237,6 +254,16 @@
> sizeof(tp->test_vector_filename),
> "%s", optarg);
> break;
> + case 's':
> + TEST_ASSERT(strlen(optarg) > 0,
> + "SNR is not provided");
> + tp->snr = strtod(optarg, NULL);
> + break;
> + case 't':
> + TEST_ASSERT(strlen(optarg) > 0,
> + "Iter_max is not provided");
> + tp->iter_max = strtol(optarg, NULL, 10);
> + break;
> case 'l':
> TEST_ASSERT(strlen(optarg) > 0,
> "Num of lcores is not provided");
> diff --git a/app/test-bbdev/main.h b/app/test-bbdev/main.h
> index 23b4d58..fb3dec8 100644
> --- a/app/test-bbdev/main.h
> +++ b/app/test-bbdev/main.h
> @@ -19,6 +19,8 @@
> #define MAX_BURST 512U
> #define DEFAULT_BURST 32U
> #define DEFAULT_OPS 64U
> +#define DEFAULT_ITER 6U
> +
>
>
> #define TEST_ASSERT(cond, msg, ...) do { \
> @@ -104,8 +106,7 @@ struct test_command {
> .command = RTE_STR(name), \
> .callback = test_func_##name, \
> }; \
> - static void __attribute__((constructor, used)) \
> - test_register_##name(void) \
> + RTE_INIT(test_register_##name) \
> { \
> add_test_command(&test_struct_##name); \
> }
> @@ -118,6 +119,10 @@ struct test_command {
>
> unsigned int get_num_lcores(void);
>
> +double get_snr(void);
> +
> +unsigned int get_iter_max(void);
> +
> bool get_init_device(void);
>
> #endif
> diff --git a/app/test-bbdev/test_bbdev_perf.c b/app/test-bbdev/test_bbdev_perf.c
> index 978ccd6..7bc824b 100644
> --- a/app/test-bbdev/test_bbdev_perf.c
> +++ b/app/test-bbdev/test_bbdev_perf.c
> @@ -111,6 +111,8 @@ struct thread_params {
> double ops_per_sec;
> double mbps;
> uint8_t iter_count;
> + double iter_average;
> + double bler;
> rte_atomic16_t nb_dequeued;
> rte_atomic16_t processing_status;
> rte_atomic16_t burst_sz;
> @@ -1204,6 +1206,213 @@ typedef int (test_case_function)(struct active_device *ad,
> }
> }
>
> +
> +/* Returns a random number drawn from a normal distribution
> + * with mean of 0 and variance of 1
> + * Marsaglia algorithm
> + */
> +static double
> +randn(int n)
> +{
> + double S, Z, U1, U2, u, v, fac;
> +
> + do {
> + U1 = (double)rand() / RAND_MAX;
> + U2 = (double)rand() / RAND_MAX;
> + u = 2. * U1 - 1.;
> + v = 2. * U2 - 1.;
> + S = u * u + v * v;
> + } while (S >= 1 || S == 0);
> + fac = sqrt(-2. * log(S) / S);
> + Z = (n % 2) ? u * fac : v * fac;
> + return Z;
> +}
> +
> +static inline double
> +maxstar(double A, double B)
> +{
> + if (fabs(A - B) > 5)
> + return fmax(A, B);
> + else
> + return fmax(A, B) + log1p(exp(-fabs(A - B)));
> +}
> +
> +
> +/*
> + * Generate Qm LLRS for Qm==6
> + * Modulation, AWGN and LLR estimation from max log development
> + */
> +static void
> +gen_qm6_llr(int8_t *llrs, uint32_t i, double N0, double llr_max)
> +{
> + int qm = 6;
> + int qam = 64;
> + int m, k;
> + double I, Q, p0, p1, llr_, b[qm], log_syml_prob[qam];
> + /* 5.1.4 of TS38.211 */
> + const double symbols_I[64] = {
> + 3, 3, 1, 1, 3, 3, 1, 1, 5, 5, 7, 7, 5, 5, 7, 7,
> + 3, 3, 1, 1, 3, 3, 1, 1, 5, 5, 7, 7, 5, 5, 7, 7,
> + -3, -3, -1, -1, -3, -3, -1, -1, -5, -5, -7, -7,
> + -5, -5, -7, -7, -3, -3, -1, -1, -3, -3, -1, -1,
> + -5, -5, -7, -7, -5, -5, -7, -7};
> + const double symbols_Q[64] = {
> + 3, 1, 3, 1, 5, 7, 5, 7, 3, 1, 3, 1, 5, 7, 5, 7,
> + -3, -1, -3, -1, -5, -7, -5, -7, -3, -1, -3, -1,
> + -5, -7, -5, -7, 3, 1, 3, 1, 5, 7, 5, 7, 3, 1, 3, 1,
> + 5, 7, 5, 7, -3, -1, -3, -1, -5, -7, -5, -7,
> + -3, -1, -3, -1, -5, -7, -5, -7};
> + /* Average constellation point energy */
> + N0 *= 42.0;
> + for (k = 0; k < qm; k++)
> + b[k] = llrs[qm * i + k] < 0 ? 1.0 : 0.0;
> + /* 5.1.4 of TS38.211 */
> + I = (1 - 2 * b[0])*(4 - (1 - 2 * b[2]) * (2 - (1 - 2 * b[4])));
> + Q = (1 - 2 * b[1])*(4 - (1 - 2 * b[3]) * (2 - (1 - 2 * b[5])));
> + /* AWGN channel */
> + I += sqrt(N0 / 2) * randn(0);
> + Q += sqrt(N0 / 2) * randn(1);
> + /*
> + * Calculate the log of the probability that each of
> + * the constellation points was transmitted
> + */
> + for (m = 0; m < qam; m++)
> + log_syml_prob[m] = -(pow(I - symbols_I[m], 2.0)
> + + pow(Q - symbols_Q[m], 2.0)) / N0;
> + /* Calculate an LLR for each of the k_64QAM bits in the set */
> + for (k = 0; k < qm; k++) {
> + p0 = -999999;
> + p1 = -999999;
> + /* For each constellation point */
> + for (m = 0; m < qam; m++) {
> + if ((m >> (qm - k - 1)) & 1)
> + p1 = maxstar(p1, log_syml_prob[m]);
> + else
> + p0 = maxstar(p0, log_syml_prob[m]);
> + }
> + /* Calculate the LLR */
> + llr_ = p0 - p1;
> + llr_ *= (1 << ldpc_llr_decimals);
> + llr_ = round(llr_);
> + if (llr_ > llr_max)
> + llr_ = llr_max;
> + if (llr_ < -llr_max)
> + llr_ = -llr_max;
> + llrs[qm * i + k] = (int8_t) llr_;
> + }
> +}
> +
> +/*
> + * Generate Qm LLRS for Qm==4
> + * Modulation, AWGN and LLR estimation from max log development
> + */
> +static void
> +gen_qm4_llr(int8_t *llrs, uint32_t i, double N0, double llr_max)
> +{
> + int qm = 4;
> + int qam = 16;
> + int m, k;
> + double I, Q, p0, p1, llr_, b[qm], log_syml_prob[qam];
> + /* 5.1.4 of TS38.211 */
> + const double symbols_I[16] = {1, 1, 3, 3, 1, 1, 3, 3,
> + -1, -1, -3, -3, -1, -1, -3, -3};
> + const double symbols_Q[16] = {1, 3, 1, 3, -1, -3, -1, -3,
> + 1, 3, 1, 3, -1, -3, -1, -3};
> + /* Average constellation point energy */
> + N0 *= 10.0;
> + for (k = 0; k < qm; k++)
> + b[k] = llrs[qm * i + k] < 0 ? 1.0 : 0.0;
> + /* 5.1.4 of TS38.211 */
> + I = (1 - 2 * b[0]) * (2 - (1 - 2 * b[2]));
> + Q = (1 - 2 * b[1]) * (2 - (1 - 2 * b[3]));
> + /* AWGN channel */
> + I += sqrt(N0 / 2) * randn(0);
> + Q += sqrt(N0 / 2) * randn(1);
> + /*
> + * Calculate the log of the probability that each of
> + * the constellation points was transmitted
> + */
> + for (m = 0; m < qam; m++)
> + log_syml_prob[m] = -(pow(I - symbols_I[m], 2.0)
> + + pow(Q - symbols_Q[m], 2.0)) / N0;
> + /* Calculate an LLR for each of the k_64QAM bits in the set */
> + for (k = 0; k < qm; k++) {
> + p0 = -999999;
> + p1 = -999999;
> + /* For each constellation point */
> + for (m = 0; m < qam; m++) {
> + if ((m >> (qm - k - 1)) & 1)
> + p1 = maxstar(p1, log_syml_prob[m]);
> + else
> + p0 = maxstar(p0, log_syml_prob[m]);
> + }
> + /* Calculate the LLR */
> + llr_ = p0 - p1;
> + llr_ *= (1 << ldpc_llr_decimals);
> + llr_ = round(llr_);
> + if (llr_ > llr_max)
> + llr_ = llr_max;
> + if (llr_ < -llr_max)
> + llr_ = -llr_max;
> + llrs[qm * i + k] = (int8_t) llr_;
> + }
> +}
> +
> +static void
> +gen_qm2_llr(int8_t *llrs, uint32_t j, double N0, double llr_max)
> +{
> + double b, b1, n;
> + double coeff = 2.0 * sqrt(N0);
> +
> + /* Ignore in vectors rare quasi null LLRs not to be saturated */
> + if (llrs[j] < 8 && llrs[j] > -8)
> + return;
> +
> + /* Note don't change sign here */
> + n = randn(j % 2);
> + b1 = ((llrs[j] > 0 ? 2.0 : -2.0)
> + + coeff * n) / N0;
> + b = b1 * (1 << ldpc_llr_decimals);
> + b = round(b);
> + if (b > llr_max)
> + b = llr_max;
> + if (b < -llr_max)
> + b = -llr_max;
> + llrs[j] = (int8_t) b;
> +}
> +
> +/* Generate LLR for a given SNR */
> +static void
> +generate_llr_input(uint16_t n, struct rte_bbdev_op_data *inputs,
> + struct rte_bbdev_dec_op *ref_op)
> +{
> + struct rte_mbuf *m;
> + uint16_t qm;
> + uint32_t i, j, e, range;
> + double N0, llr_max;
> +
> + e = ref_op->ldpc_dec.cb_params.e;
> + qm = ref_op->ldpc_dec.q_m;
> + llr_max = (1 << (ldpc_llr_size - 1)) - 1;
> + range = e / qm;
> + N0 = 1.0 / pow(10.0, get_snr() / 10.0);
> +
> + for (i = 0; i < n; ++i) {
> + m = inputs[i].data;
> + int8_t *llrs = rte_pktmbuf_mtod_offset(m, int8_t *, 0);
> + if (qm == 6) {
> + for (j = 0; j < range; ++j)
> + gen_qm6_llr(llrs, j, N0, llr_max);
> + } else if (qm == 4) {
> + for (j = 0; j < range; ++j)
> + gen_qm4_llr(llrs, j, N0, llr_max);
> + } else {
> + for (j = 0; j < e; ++j)
> + gen_qm2_llr(llrs, j, N0, llr_max);
> + }
> + }
> +}
> +
> static void
> copy_reference_ldpc_dec_op(struct rte_bbdev_dec_op **ops, unsigned int n,
> unsigned int start_idx,
> @@ -1301,7 +1510,7 @@ typedef int (test_case_function)(struct active_device *ad,
> {
> int status = op->status;
> /* ignore parity mismatch false alarms for long iterations */
> - {
> + if (get_iter_max() >= 10) {
> if (!(expected_status & (1 << RTE_BBDEV_SYNDROME_ERROR)) &&
> (status & (1 << RTE_BBDEV_SYNDROME_ERROR))) {
> printf("WARNING: Ignore Syndrome Check mismatch\n");
> @@ -1587,6 +1796,30 @@ typedef int (test_case_function)(struct active_device *ad,
> return TEST_SUCCESS;
> }
>
> +/* Check Number of code blocks errors */
> +static int
> +validate_ldpc_bler(struct rte_bbdev_dec_op **ops, const uint16_t n)
> +{
> + unsigned int i;
> + struct op_data_entries *hard_data_orig =
> + &test_vector.entries[DATA_HARD_OUTPUT];
> + struct rte_bbdev_op_ldpc_dec *ops_td;
> + struct rte_bbdev_op_data *hard_output;
> + int errors = 0;
> + struct rte_mbuf *m;
> +
> + for (i = 0; i < n; ++i) {
> + ops_td = &ops[i]->ldpc_dec;
> + hard_output = &ops_td->hard_output;
> + m = hard_output->data;
> + if (memcmp(rte_pktmbuf_mtod_offset(m, uint32_t *, 0),
> + hard_data_orig->segments[0].addr,
> + hard_data_orig->segments[0].length))
> + errors++;
> + }
> + return errors;
> +}
> +
> static int
> validate_ldpc_dec_op(struct rte_bbdev_dec_op **ops, const uint16_t n,
> struct rte_bbdev_dec_op *ref_op, const int vector_mask)
> @@ -2500,6 +2733,139 @@ typedef int (test_case_function)(struct active_device *ad,
> }
>
> static int
> +bler_pmd_lcore_ldpc_dec(void *arg)
> +{
> + struct thread_params *tp = arg;
> + uint16_t enq, deq;
> + uint64_t total_time = 0, start_time;
> + const uint16_t queue_id = tp->queue_id;
> + const uint16_t burst_sz = tp->op_params->burst_sz;
> + const uint16_t num_ops = tp->op_params->num_to_process;
> + struct rte_bbdev_dec_op *ops_enq[num_ops];
> + struct rte_bbdev_dec_op *ops_deq[num_ops];
> + struct rte_bbdev_dec_op *ref_op = tp->op_params->ref_dec_op;
> + struct test_buffers *bufs = NULL;
> + int i, j, ret;
> + float parity_bler = 0;
> + struct rte_bbdev_info info;
> + uint16_t num_to_enq;
> + bool extDdr = check_bit(ldpc_cap_flags,
> + RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_OUT_ENABLE);
> + bool loopback = check_bit(ref_op->ldpc_dec.op_flags,
> + RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_LOOPBACK);
> + bool hc_out = check_bit(ref_op->ldpc_dec.op_flags,
> + RTE_BBDEV_LDPC_HQ_COMBINE_OUT_ENABLE);
> +
> + TEST_ASSERT_SUCCESS((burst_sz > MAX_BURST),
> + "BURST_SIZE should be <= %u", MAX_BURST);
> +
> + rte_bbdev_info_get(tp->dev_id, &info);
> +
> + TEST_ASSERT_SUCCESS((num_ops > info.drv.queue_size_lim),
> + "NUM_OPS cannot exceed %u for this device",
> + info.drv.queue_size_lim);
> +
> + bufs = &tp->op_params->q_bufs[GET_SOCKET(info.socket_id)][queue_id];
> +
> + while (rte_atomic16_read(&tp->op_params->sync) == SYNC_WAIT)
> + rte_pause();
> +
> + ret = rte_bbdev_dec_op_alloc_bulk(tp->op_params->mp, ops_enq, num_ops);
> + TEST_ASSERT_SUCCESS(ret, "Allocation failed for %d ops", num_ops);
> +
> + /* For BLER tests we need to enable early termination */
> + if (!check_bit(ref_op->ldpc_dec.op_flags,
> + RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE))
> + ref_op->ldpc_dec.op_flags +=
> + RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE;
> + ref_op->ldpc_dec.iter_max = get_iter_max();
> + ref_op->ldpc_dec.iter_count = ref_op->ldpc_dec.iter_max;
> +
> + if (test_vector.op_type != RTE_BBDEV_OP_NONE)
> + copy_reference_ldpc_dec_op(ops_enq, num_ops, 0, bufs->inputs,
> + bufs->hard_outputs, bufs->soft_outputs,
> + bufs->harq_inputs, bufs->harq_outputs, ref_op);
> + generate_llr_input(num_ops, bufs->inputs, ref_op);
> +
> + /* Set counter to validate the ordering */
> + for (j = 0; j < num_ops; ++j)
> + ops_enq[j]->opaque_data = (void *)(uintptr_t)j;
> +
> + for (i = 0; i < 1; ++i) { /* Could add more iterations */
> + for (j = 0; j < num_ops; ++j) {
> + if (!loopback)
> + mbuf_reset(
> + ops_enq[j]->ldpc_dec.hard_output.data);
> + if (hc_out || loopback)
> + mbuf_reset(
> + ops_enq[j]->ldpc_dec.harq_combined_output.data);
> + }
> + if (extDdr) {
> + bool preload = i == (TEST_REPETITIONS - 1);
> + preload_harq_ddr(tp->dev_id, queue_id, ops_enq,
> + num_ops, preload);
> + }
> + start_time = rte_rdtsc_precise();
> +
> + for (enq = 0, deq = 0; enq < num_ops;) {
> + num_to_enq = burst_sz;
> +
> + if (unlikely(num_ops - enq < num_to_enq))
> + num_to_enq = num_ops - enq;
> +
> + enq += rte_bbdev_enqueue_ldpc_dec_ops(tp->dev_id,
> + queue_id, &ops_enq[enq], num_to_enq);
> +
> + deq += rte_bbdev_dequeue_ldpc_dec_ops(tp->dev_id,
> + queue_id, &ops_deq[deq], enq - deq);
> + }
> +
> + /* dequeue the remaining */
> + while (deq < enq) {
> + deq += rte_bbdev_dequeue_ldpc_dec_ops(tp->dev_id,
> + queue_id, &ops_deq[deq], enq - deq);
> + }
> +
> + total_time += rte_rdtsc_precise() - start_time;
> + }
> +
> + tp->iter_count = 0;
> + tp->iter_average = 0;
> + /* get the max of iter_count for all dequeued ops */
> + for (i = 0; i < num_ops; ++i) {
> + tp->iter_count = RTE_MAX(ops_enq[i]->ldpc_dec.iter_count,
> + tp->iter_count);
> + tp->iter_average += (double) ops_enq[i]->ldpc_dec.iter_count;
> + if (ops_enq[i]->status & (1 << RTE_BBDEV_SYNDROME_ERROR))
> + parity_bler += 1.0;
> + }
> +
> + parity_bler /= num_ops; /* This one is based on SYND */
> + tp->iter_average /= num_ops;
> + tp->bler = (double) validate_ldpc_bler(ops_deq, num_ops) / num_ops;
> +
> + if (test_vector.op_type != RTE_BBDEV_OP_NONE
> + && tp->bler == 0
> + && parity_bler == 0
> + && !hc_out) {
> + ret = validate_ldpc_dec_op(ops_deq, num_ops, ref_op,
> + tp->op_params->vector_mask);
> + TEST_ASSERT_SUCCESS(ret, "Validation failed!");
> + }
> +
> + rte_bbdev_dec_op_free_bulk(ops_enq, num_ops);
> +
> + double tb_len_bits = calc_ldpc_dec_TB_size(ref_op);
> + tp->ops_per_sec = ((double)num_ops * 1) /
> + ((double)total_time / (double)rte_get_tsc_hz());
> + tp->mbps = (((double)(num_ops * 1 * tb_len_bits)) /
> + 1000000.0) / ((double)total_time /
> + (double)rte_get_tsc_hz());
> +
> + return TEST_SUCCESS;
> +}
> +
> +static int
> throughput_pmd_lcore_ldpc_dec(void *arg)
> {
> struct thread_params *tp = arg;
> @@ -2544,7 +2910,7 @@ typedef int (test_case_function)(struct active_device *ad,
> RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE))
> ref_op->ldpc_dec.op_flags -=
> RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE;
> - ref_op->ldpc_dec.iter_max = 6;
> + ref_op->ldpc_dec.iter_max = get_iter_max();
> ref_op->ldpc_dec.iter_count = ref_op->ldpc_dec.iter_max;
>
> if (test_vector.op_type != RTE_BBDEV_OP_NONE)
> @@ -2825,27 +3191,147 @@ typedef int (test_case_function)(struct active_device *ad,
> used_cores, total_mops, total_mbps);
> }
>
> +/* Aggregate the performance results over the number of cores used */
> static void
> print_dec_throughput(struct thread_params *t_params, unsigned int used_cores)
> {
> - unsigned int iter = 0;
> + unsigned int core_idx = 0;
> double total_mops = 0, total_mbps = 0;
> uint8_t iter_count = 0;
>
> - for (iter = 0; iter < used_cores; iter++) {
> + for (core_idx = 0; core_idx < used_cores; core_idx++) {
> printf(
> "Throughput for core (%u): %.8lg Ops/s, %.8lg Mbps @ max %u iterations\n",
> - t_params[iter].lcore_id, t_params[iter].ops_per_sec,
> - t_params[iter].mbps, t_params[iter].iter_count);
> - total_mops += t_params[iter].ops_per_sec;
> - total_mbps += t_params[iter].mbps;
> - iter_count = RTE_MAX(iter_count, t_params[iter].iter_count);
> + t_params[core_idx].lcore_id,
> + t_params[core_idx].ops_per_sec,
> + t_params[core_idx].mbps,
> + t_params[core_idx].iter_count);
> + total_mops += t_params[core_idx].ops_per_sec;
> + total_mbps += t_params[core_idx].mbps;
> + iter_count = RTE_MAX(iter_count,
> + t_params[core_idx].iter_count);
> }
> printf(
> "\nTotal throughput for %u cores: %.8lg MOPS, %.8lg Mbps @ max %u iterations\n",
> used_cores, total_mops, total_mbps, iter_count);
> }
>
> +/* Aggregate the performance results over the number of cores used */
> +static void
> +print_dec_bler(struct thread_params *t_params, unsigned int used_cores)
> +{
> + unsigned int core_idx = 0;
> + double total_mbps = 0, total_bler = 0, total_iter = 0;
> + double snr = get_snr();
> +
> + for (core_idx = 0; core_idx < used_cores; core_idx++) {
> + printf("Core%u BLER %.1f %% - Iters %.1f - Tp %.1f Mbps %s\n",
> + t_params[core_idx].lcore_id,
> + t_params[core_idx].bler * 100,
> + t_params[core_idx].iter_average,
> + t_params[core_idx].mbps,
> + get_vector_filename());
> + total_mbps += t_params[core_idx].mbps;
> + total_bler += t_params[core_idx].bler;
> + total_iter += t_params[core_idx].iter_average;
> + }
> + total_bler /= used_cores;
> + total_iter /= used_cores;
> +
> + printf("SNR %.2f BLER %.1f %% - Iterations %.1f %d - Tp %.1f Mbps %s\n",
> + snr, total_bler * 100, total_iter, get_iter_max(),
> + total_mbps, get_vector_filename());
> +}
> +
> +/*
> + * Test function that determines BLER wireless performance
> + */
> +static int
> +bler_test(struct active_device *ad,
> + struct test_op_params *op_params)
> +{
> + int ret;
> + unsigned int lcore_id, used_cores = 0;
> + struct thread_params *t_params;
> + struct rte_bbdev_info info;
> + lcore_function_t *bler_function;
> + uint16_t num_lcores;
> + const char *op_type_str;
> +
> + rte_bbdev_info_get(ad->dev_id, &info);
> +
> + op_type_str = rte_bbdev_op_type_str(test_vector.op_type);
> + TEST_ASSERT_NOT_NULL(op_type_str, "Invalid op type: %u",
> + test_vector.op_type);
> +
> + printf("+ ------------------------------------------------------- +\n");
> + printf("== test: bler\ndev: %s, nb_queues: %u, burst size: %u, num ops: %u, num_lcores: %u, op type: %s, itr mode: %s, GHz: %lg\n",
> + info.dev_name, ad->nb_queues, op_params->burst_sz,
> + op_params->num_to_process, op_params->num_lcores,
> + op_type_str,
> + intr_enabled ? "Interrupt mode" : "PMD mode",
> + (double)rte_get_tsc_hz() / 1000000000.0);
> +
> + /* Set number of lcores */
> + num_lcores = (ad->nb_queues < (op_params->num_lcores))
> + ? ad->nb_queues
> + : op_params->num_lcores;
> +
> + /* Allocate memory for thread parameters structure */
> + t_params = rte_zmalloc(NULL, num_lcores * sizeof(struct thread_params),
> + RTE_CACHE_LINE_SIZE);
> + TEST_ASSERT_NOT_NULL(t_params, "Failed to alloc %zuB for t_params",
> + RTE_ALIGN(sizeof(struct thread_params) * num_lcores,
> + RTE_CACHE_LINE_SIZE));
> +
> + if (test_vector.op_type == RTE_BBDEV_OP_LDPC_DEC)
> + bler_function = bler_pmd_lcore_ldpc_dec;
> + else
> + return TEST_SKIPPED;
> +
> + rte_atomic16_set(&op_params->sync, SYNC_WAIT);
> +
> + /* Master core is set at first entry */
> + t_params[0].dev_id = ad->dev_id;
> + t_params[0].lcore_id = rte_lcore_id();
> + t_params[0].op_params = op_params;
> + t_params[0].queue_id = ad->queue_ids[used_cores++];
> + t_params[0].iter_count = 0;
> +
> + RTE_LCORE_FOREACH_SLAVE(lcore_id) {
> + if (used_cores >= num_lcores)
> + break;
> +
> + t_params[used_cores].dev_id = ad->dev_id;
> + t_params[used_cores].lcore_id = lcore_id;
> + t_params[used_cores].op_params = op_params;
> + t_params[used_cores].queue_id = ad->queue_ids[used_cores];
> + t_params[used_cores].iter_count = 0;
> +
> + rte_eal_remote_launch(bler_function,
> + &t_params[used_cores++], lcore_id);
> + }
> +
> + rte_atomic16_set(&op_params->sync, SYNC_START);
> + ret = bler_function(&t_params[0]);
> +
> + /* Master core is always used */
> + for (used_cores = 1; used_cores < num_lcores; used_cores++)
> + ret |= rte_eal_wait_lcore(t_params[used_cores].lcore_id);
> +
> + print_dec_bler(t_params, num_lcores);
> +
> + /* Return if test failed */
> + if (ret) {
> + rte_free(t_params);
> + return ret;
> + }
> +
> + /* Function to print something here*/
> + rte_free(t_params);
> + return ret;
> +}
> +
> /*
> * Test function that determines how long an enqueue + dequeue of a burst
> * takes on available lcores.
> @@ -3113,7 +3599,7 @@ typedef int (test_case_function)(struct active_device *ad,
> RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE))
> ref_op->ldpc_dec.op_flags -=
> RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE;
> - ref_op->ldpc_dec.iter_max = 6;
> + ref_op->ldpc_dec.iter_max = get_iter_max();
> ref_op->ldpc_dec.iter_count = ref_op->ldpc_dec.iter_max;
>
> if (test_vector.op_type != RTE_BBDEV_OP_NONE)
> @@ -3971,6 +4457,12 @@ typedef int (test_case_function)(struct active_device *ad,
> }
>
> static int
> +bler_tc(void)
> +{
> + return run_test_case(bler_test);
> +}
> +
> +static int
> throughput_tc(void)
> {
> return run_test_case(throughput_test);
> @@ -4000,6 +4492,16 @@ typedef int (test_case_function)(struct active_device *ad,
> return run_test_case(throughput_test);
> }
>
> +static struct unit_test_suite bbdev_bler_testsuite = {
> + .suite_name = "BBdev BLER Tests",
> + .setup = testsuite_setup,
> + .teardown = testsuite_teardown,
> + .unit_test_cases = {
> + TEST_CASE_ST(ut_setup, ut_teardown, bler_tc),
> + TEST_CASES_END() /**< NULL terminate unit test array */
> + }
> +};
> +
> static struct unit_test_suite bbdev_throughput_testsuite = {
> .suite_name = "BBdev Throughput Tests",
> .setup = testsuite_setup,
> @@ -4051,6 +4553,7 @@ typedef int (test_case_function)(struct active_device *ad,
> }
> };
>
> +REGISTER_TEST_COMMAND(bler, bbdev_bler_testsuite);
> REGISTER_TEST_COMMAND(throughput, bbdev_throughput_testsuite);
> REGISTER_TEST_COMMAND(validation, bbdev_validation_testsuite);
> REGISTER_TEST_COMMAND(latency, bbdev_latency_testsuite);
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