[v2,1/2] bbdev: add new function to dump debug information

This provides a new API to dump more debug information
related to the status on a given bbdev queue.
Some of this information is visible at bbdev level.
This also provides a new option dev op, to print more
information at the lower PMD level.
This helps user to troubleshoot issues related to
previous operations provided into a queue causing
possible hard-to-debug negative scenarios.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
---
 lib/bbdev/rte_bbdev.c     | 214 ++++++++++++++++++++++++++++++++++++++
 lib/bbdev/rte_bbdev.h     |  41 ++++++++
 lib/bbdev/rte_bbdev_pmd.h |   9 ++
 lib/bbdev/version.map     |   4 +
 4 files changed, 268 insertions(+)
  

On 8/29/24 22:06, Nicolas Chautru wrote:
> This provides a new API to dump more debug information
> related to the status on a given bbdev queue.
> Some of this information is visible at bbdev level.
> This also provides a new option dev op, to print more
> information at the lower PMD level.
> This helps user to troubleshoot issues related to
> previous operations provided into a queue causing
> possible hard-to-debug negative scenarios.
> 
> Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
> ---
>   lib/bbdev/rte_bbdev.c     | 214 ++++++++++++++++++++++++++++++++++++++
>   lib/bbdev/rte_bbdev.h     |  41 ++++++++
>   lib/bbdev/rte_bbdev_pmd.h |   9 ++
>   lib/bbdev/version.map     |   4 +
>   4 files changed, 268 insertions(+)
> 
> diff --git a/lib/bbdev/rte_bbdev.c b/lib/bbdev/rte_bbdev.c
> index 13bde3c25b..9087862c76 100644
> --- a/lib/bbdev/rte_bbdev.c
> +++ b/lib/bbdev/rte_bbdev.c
> @@ -1190,3 +1190,217 @@ rte_bbdev_enqueue_status_str(enum rte_bbdev_enqueue_status status)
>   	rte_bbdev_log(ERR, "Invalid enqueue status");
>   	return NULL;
>   }
> +
> +
> +int
> +rte_bbdev_queue_ops_dump(uint16_t dev_id, uint16_t queue_id, FILE *f)
> +{
> +	struct rte_bbdev_queue_data *q_data;
> +	struct rte_bbdev_stats *stats;
> +	uint16_t i;
> +	struct rte_bbdev *dev = get_dev(dev_id);
> +
> +	VALID_DEV_OR_RET_ERR(dev, dev_id);
> +	VALID_QUEUE_OR_RET_ERR(queue_id, dev);
> +	VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
> +	VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_ops_dump, dev_id);
> +
> +	q_data = &dev->data->queues[queue_id];
> +
> +	if (f == NULL)
> +		return -EINVAL;
> +
> +	fprintf(f, "Dump of operations on %s queue %d\n",
> +			dev->data->name, queue_id);
> +	fprintf(f, "  Last Enqueue Status %s\n",
> +			rte_bbdev_enqueue_status_str(q_data->enqueue_status));
> +	for (i = 0; i < RTE_BBDEV_ENQ_STATUS_SIZE_MAX; i++)
> +		if (q_data->queue_stats.enqueue_status_count[i] > 0)
> +			fprintf(f, "  Enqueue Status Counters %s %" PRIu64 "\n",
> +					rte_bbdev_enqueue_status_str(i),
> +					q_data->queue_stats.enqueue_status_count[i]);
> +	stats = &dev->data->queues[queue_id].queue_stats;
> +
> +	fprintf(f, "  Enqueue Count %" PRIu64 " Warning %" PRIu64 " Error %" PRIu64 "\n",
> +			stats->enqueued_count, stats->enqueue_warn_count,
> +			stats->enqueue_err_count);
> +	fprintf(f, "  Dequeue Count %" PRIu64 " Warning %" PRIu64 " Error %" PRIu64 "\n",
> +			stats->dequeued_count, stats->dequeue_warn_count,
> +			stats->dequeue_err_count);
> +
> +	return dev->dev_ops->queue_ops_dump(dev, queue_id, f);
> +}
> +
> +char *
> +rte_bbdev_ops_param_string(void *op, enum rte_bbdev_op_type op_type)
> +{
> +	static char str[1024];
> +	static char partial[1024];

It is better to have the string allocated by the application, it would
be passed as a pointer and length of the allocated buffer would be
passed also as an argument.

> +	struct rte_bbdev_dec_op *op_dec;
> +	struct rte_bbdev_enc_op *op_enc;
> +	struct rte_bbdev_fft_op *op_fft;
> +	struct rte_bbdev_mldts_op *op_mldts;
> +
> +	rte_iova_t add0 = 0, add1 = 0, add2 = 0, add3 = 0, add4 = 0;
> +
> +	if (op == NULL) {
> +		snprintf(str, sizeof(str), "Invalid Operation pointer\n");
> +		return str;
> +	}
> +
> +	if (op_type == RTE_BBDEV_OP_LDPC_DEC) {
> +		op_dec = op;
> +		if (op_dec->ldpc_dec.code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK)
> +			snprintf(partial, sizeof(partial), "C %d Cab %d Ea %d Eb %d r %d",
> +					op_dec->ldpc_dec.tb_params.c,
> +					op_dec->ldpc_dec.tb_params.cab,
> +					op_dec->ldpc_dec.tb_params.ea,
> +					op_dec->ldpc_dec.tb_params.eb,
> +					op_dec->ldpc_dec.tb_params.r);
> +		else
> +			snprintf(partial, sizeof(partial), "E %d", op_dec->ldpc_dec.cb_params.e);
> +		if (op_dec->ldpc_dec.input.data != NULL)
> +			add0 = rte_pktmbuf_iova_offset(op_dec->ldpc_dec.input.data, 0);
> +		if (op_dec->ldpc_dec.hard_output.data != NULL)
> +			add1 = rte_pktmbuf_iova_offset(op_dec->ldpc_dec.hard_output.data, 0);
> +		if (op_dec->ldpc_dec.soft_output.data != NULL)
> +			add2 = rte_pktmbuf_iova_offset(op_dec->ldpc_dec.soft_output.data, 0);
> +		if (op_dec->ldpc_dec.harq_combined_input.data != NULL)
> +			add3 = rte_pktmbuf_iova_offset(op_dec->ldpc_dec.harq_combined_input.data,
> +					0);
> +		if (op_dec->ldpc_dec.harq_combined_output.data != NULL)
> +			add4 = rte_pktmbuf_iova_offset(op_dec->ldpc_dec.harq_combined_output.data,
> +					0);
> +		snprintf(str, sizeof(str), "op %x st %x BG %d Zc %d Ncb %d qm %d F %d Rv %d It %d It %d "
> +			"HARQin %d in %" PRIx64 " ho %" PRIx64 " so %" PRIx64 " hi %" PRIx64 " "
> +			"ho %" PRIx64 " %s\n",
> +			op_dec->ldpc_dec.op_flags, op_dec->status,
> +			op_dec->ldpc_dec.basegraph, op_dec->ldpc_dec.z_c,
> +			op_dec->ldpc_dec.n_cb, op_dec->ldpc_dec.q_m,
> +			op_dec->ldpc_dec.n_filler, op_dec->ldpc_dec.rv_index,
> +			op_dec->ldpc_dec.iter_max, op_dec->ldpc_dec.iter_count,
> +			op_dec->ldpc_dec.harq_combined_input.length,
> +			add0, add1, add2, add3, add4, partial);
> +	} else if (op_type == RTE_BBDEV_OP_TURBO_DEC) {
> +		op_dec = op;
> +		if (op_dec->turbo_dec.code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK)
> +			snprintf(partial, sizeof(partial), "C %d Cab %d Ea %d Eb %d r %d K %d",
> +					op_dec->turbo_dec.tb_params.c,
> +					op_dec->turbo_dec.tb_params.cab,
> +					op_dec->turbo_dec.tb_params.ea,
> +					op_dec->turbo_dec.tb_params.eb,
> +					op_dec->turbo_dec.tb_params.r,
> +					op_dec->turbo_dec.tb_params.k_neg);
> +		else
> +			snprintf(partial, sizeof(partial), "E %d K %d",
> +					op_dec->turbo_dec.cb_params.e,
> +					op_dec->turbo_dec.cb_params.k);
> +		if (op_dec->turbo_dec.input.data != NULL)
> +			add0 = rte_pktmbuf_iova_offset(op_dec->turbo_dec.input.data, 0);
> +		if (op_dec->turbo_dec.hard_output.data != NULL)
> +			add1 = rte_pktmbuf_iova_offset(op_dec->turbo_dec.hard_output.data, 0);
> +		if (op_dec->turbo_dec.soft_output.data != NULL)
> +			add2 = rte_pktmbuf_iova_offset(op_dec->turbo_dec.soft_output.data, 0);
> +		snprintf(str, sizeof(str), "op %x st %x CBM %d Iter %d map %d Rv %d ext %d "
> +				"in %" PRIx64 " ho %" PRIx64 " so %" PRIx64 " %s\n",
> +				op_dec->turbo_dec.op_flags, op_dec->status,
> +				op_dec->turbo_dec.code_block_mode,
> +				op_dec->turbo_dec.iter_max, op_dec->turbo_dec.num_maps,
> +				op_dec->turbo_dec.rv_index, op_dec->turbo_dec.ext_scale,
> +				add0, add1, add2, partial);
> +	} else if (op_type == RTE_BBDEV_OP_LDPC_ENC) {
> +		op_enc = op;
> +		if (op_enc->ldpc_enc.code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK)
> +			snprintf(partial, sizeof(partial), "C %d Cab %d Ea %d Eb %d r %d",
> +					op_enc->ldpc_enc.tb_params.c,
> +					op_enc->ldpc_enc.tb_params.cab,
> +					op_enc->ldpc_enc.tb_params.ea,
> +					op_enc->ldpc_enc.tb_params.eb,
> +					op_enc->ldpc_enc.tb_params.r);
> +		else
> +			snprintf(partial, sizeof(partial), "E %d",
> +					op_enc->ldpc_enc.cb_params.e);
> +		if (op_enc->ldpc_enc.input.data != NULL)
> +			add0 = rte_pktmbuf_iova_offset(op_enc->ldpc_enc.input.data, 0);
> +		if (op_enc->ldpc_enc.output.data != NULL)
> +			add1 = rte_pktmbuf_iova_offset(op_enc->ldpc_enc.output.data, 0);
> +		snprintf(str, sizeof(str), "op %x st %x BG %d Zc %d Ncb %d q_m %d F %d Rv %d "
> +				"in %" PRIx64 " out %" PRIx64 " %s\n",
> +				op_enc->ldpc_enc.op_flags, op_enc->status,
> +				op_enc->ldpc_enc.basegraph, op_enc->ldpc_enc.z_c,
> +				op_enc->ldpc_enc.n_cb, op_enc->ldpc_enc.q_m,
> +				op_enc->ldpc_enc.n_filler, op_enc->ldpc_enc.rv_index,
> +				add0, add1, partial);
> +	} else if (op_type == RTE_BBDEV_OP_TURBO_ENC) {
> +		op_enc = op;
> +		if (op_enc->turbo_enc.code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK)
> +			snprintf(partial, sizeof(partial),
> +					"C %d Cab %d Ea %d Eb %d r %d K %d Ncb %d",
> +					op_enc->turbo_enc.tb_params.c,
> +					op_enc->turbo_enc.tb_params.cab,
> +					op_enc->turbo_enc.tb_params.ea,
> +					op_enc->turbo_enc.tb_params.eb,
> +					op_enc->turbo_enc.tb_params.r,
> +					op_enc->turbo_enc.tb_params.k_neg,
> +					op_enc->turbo_enc.tb_params.ncb_neg);
> +		else
> +			snprintf(partial, sizeof(partial), "E %d K %d",
> +					op_enc->turbo_enc.cb_params.e,
> +					op_enc->turbo_enc.cb_params.k);
> +		if (op_enc->turbo_enc.input.data != NULL)
> +			add0 = rte_pktmbuf_iova_offset(op_enc->turbo_enc.input.data, 0);
> +		if (op_enc->turbo_enc.output.data != NULL)
> +			add1 = rte_pktmbuf_iova_offset(op_enc->turbo_enc.output.data, 0);
> +		snprintf(str, sizeof(str), "op %x st %x CBM %d Rv %d In %" PRIx64 " Out %" PRIx64 " %s\n",
> +				op_enc->turbo_enc.op_flags, op_enc->status,
> +				op_enc->turbo_enc.code_block_mode, op_enc->turbo_enc.rv_index,
> +				add0, add1, partial);
> +	} else if (op_type == RTE_BBDEV_OP_FFT) {
> +		op_fft = op;
> +		if (op_fft->fft.base_input.data != NULL)
> +			add0 = rte_pktmbuf_iova_offset(op_fft->fft.base_input.data, 0);
> +		if (op_fft->fft.base_output.data != NULL)
> +			add1 = rte_pktmbuf_iova_offset(op_fft->fft.base_output.data, 0);
> +		if (op_fft->fft.dewindowing_input.data != NULL)
> +			add2 = rte_pktmbuf_iova_offset(op_fft->fft.dewindowing_input.data, 0);
> +		if (op_fft->fft.power_meas_output.data != NULL)
> +			add3 = rte_pktmbuf_iova_offset(op_fft->fft.power_meas_output.data, 0);
> +		snprintf(str, sizeof(str), "op %x st %x in %d inl %d out %d outl %d cs %x ants %d "
> +				"idft %d dft %d cst %d ish %d dsh %d ncs %d pwsh %d fp16 %d fr %d "
> +				"outde %d in %" PRIx64 " out %" PRIx64 " dw %" PRIx64 " "
> +				"pm %" PRIx64 "\n",
> +				op_fft->fft.op_flags, op_fft->status,
> +				op_fft->fft.input_sequence_size, op_fft->fft.input_leading_padding,
> +				op_fft->fft.output_sequence_size,
> +				op_fft->fft.output_leading_depadding,
> +				op_fft->fft.cs_bitmap, op_fft->fft.num_antennas_log2,
> +				op_fft->fft.idft_log2, op_fft->fft.dft_log2,
> +				op_fft->fft.cs_time_adjustment,
> +				op_fft->fft.idft_shift, op_fft->fft.dft_shift,
> +				op_fft->fft.ncs_reciprocal, op_fft->fft.power_shift,
> +				op_fft->fft.fp16_exp_adjust, op_fft->fft.freq_resample_mode,
> +				op_fft->fft.output_depadded_size, add0, add1, add2, add3);
> +	} else if (op_type == RTE_BBDEV_OP_MLDTS) {
> +		op_mldts = op;
> +		if (op_mldts->mldts.qhy_input.data != NULL)
> +			add0 = rte_pktmbuf_iova_offset(op_mldts->mldts.qhy_input.data, 0);
> +		if (op_mldts->mldts.r_input.data != NULL)
> +			add1 = rte_pktmbuf_iova_offset(op_mldts->mldts.r_input.data, 0);
> +		if (op_mldts->mldts.output.data != NULL)
> +			add2 = rte_pktmbuf_iova_offset(op_mldts->mldts.output.data, 0);
> +		snprintf(str, sizeof(str),
> +				"op %x st %x rbs %d lay %d rrep %d crep%d qm %d %d %d %d "
> +				"qhy %" PRIx64 " r %" PRIx64 " out %" PRIx64 "\n",
> +				op_mldts->mldts.op_flags, op_mldts->status,
> +				op_mldts->mldts.num_rbs, op_mldts->mldts.num_layers,
> +				op_mldts->mldts.r_rep, op_mldts->mldts.c_rep,
> +				op_mldts->mldts.q_m[0], op_mldts->mldts.q_m[1],
> +				op_mldts->mldts.q_m[2], op_mldts->mldts.q_m[3],
> +				add0, add1, add2);
> +
> +	} else {
> +		snprintf(str, sizeof(str), "Invalid Operation type %d\n", op_type);
> +	}
> +
> +	return str;
> +}
> diff --git a/lib/bbdev/rte_bbdev.h b/lib/bbdev/rte_bbdev.h
> index 0cbfdd1c95..a70d841379 100644
> --- a/lib/bbdev/rte_bbdev.h
> +++ b/lib/bbdev/rte_bbdev.h
> @@ -1061,6 +1061,47 @@ rte_bbdev_device_status_str(enum rte_bbdev_device_status status);
>   const char*
>   rte_bbdev_enqueue_status_str(enum rte_bbdev_enqueue_status status);
>   
> +/**
> + * Dump operations info from device to a file.
> + * This API is used for debugging provided input operations, not a dataplane API.
> + *
> + *  @param dev_id
> + *    The device identifier.
> + *
> + *  @param queue_index
> + *    Index of queue.
> + *
> + *  @param file
> + *    A pointer to a file for output.
> + *
> + * @returns
> + *   - 0 on success
> + *   - ENOTSUP if interrupts are not supported by the identified device
> + *   - negative value on failure - as returned from PMD
> + *
> + */
> +__rte_experimental
> +int
> +rte_bbdev_queue_ops_dump(uint16_t dev_id, uint16_t queue_index, FILE *file);
> +
> +
> +/**
> + * String of parameters related to the parameters of an operation of a given type.
> + *
> + *  @param op
> + *    Pointer to an operation.
> + *
> + *  @param op_type
> + *    Operation type enum.
> + *
> + * @returns
> + *   String describing the provided operation.
> + *
> + */
> +__rte_experimental
> +char *
> +rte_bbdev_ops_param_string(void *op, enum rte_bbdev_op_type op_type);
> +
>   #ifdef __cplusplus
>   }
>   #endif
> diff --git a/lib/bbdev/rte_bbdev_pmd.h b/lib/bbdev/rte_bbdev_pmd.h
> index 442b23943d..c21a7f0c1e 100644
> --- a/lib/bbdev/rte_bbdev_pmd.h
> +++ b/lib/bbdev/rte_bbdev_pmd.h
> @@ -133,6 +133,13 @@ typedef int (*rte_bbdev_queue_intr_enable_t)(struct rte_bbdev *dev,
>   typedef int (*rte_bbdev_queue_intr_disable_t)(struct rte_bbdev *dev,
>   				    uint16_t queue_id);
>   
> +/*
> + * @internal
> + * Function to dump previous operations on a queue of a device.
> + */
> +typedef int (*rte_bbdev_queue_ops_dump_t)(struct rte_bbdev *dev,
> +		uint16_t queue_id, FILE *file);
> +
>   /**
>    * Operations implemented by drivers. Fields marked as "Required" must be
>    * provided by a driver for a device to have basic functionality. "Optional"
> @@ -170,6 +177,8 @@ struct rte_bbdev_ops {
>   	rte_bbdev_queue_intr_enable_t queue_intr_enable;
>   	/** Disable queue interrupt. Optional */
>   	rte_bbdev_queue_intr_disable_t queue_intr_disable;
> +	/** Dump operations on the queue. Optional */
> +	rte_bbdev_queue_ops_dump_t queue_ops_dump;
>   };
>   
>   /**
> diff --git a/lib/bbdev/version.map b/lib/bbdev/version.map
> index e0d82ff752..db6dfdf3c6 100644
> --- a/lib/bbdev/version.map
> +++ b/lib/bbdev/version.map
> @@ -54,4 +54,8 @@ EXPERIMENTAL {
>   	rte_bbdev_enqueue_mldts_ops;
>   	rte_bbdev_mldts_op_alloc_bulk;
>   	rte_bbdev_mldts_op_free_bulk;
> +
> +	# added in 24.11
> +	rte_bbdev_queue_ops_dump;
> +	rte_bbdev_ops_param_string;
>   };
  

Hi Maxime, 

> -----Original Message-----
> From: Maxime Coquelin <maxime.coquelin@redhat.com>
> Sent: Friday, September 13, 2024 7:10 AM
> To: Chautru, Nicolas <nicolas.chautru@intel.com>; dev@dpdk.org
> Cc: hemant.agrawal@nxp.com; Marchand, David
> <david.marchand@redhat.com>; Vargas, Hernan <hernan.vargas@intel.com>
> Subject: Re: [PATCH v2 1/2] bbdev: add new function to dump debug
> information
> 
> 
> 
> On 8/29/24 22:06, Nicolas Chautru wrote:
> > This provides a new API to dump more debug information related to the
> > status on a given bbdev queue.
> > Some of this information is visible at bbdev level.
> > This also provides a new option dev op, to print more information at
> > the lower PMD level.
> > This helps user to troubleshoot issues related to previous operations
> > provided into a queue causing possible hard-to-debug negative
> > scenarios.
> >
> > Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
> > ---
> >   lib/bbdev/rte_bbdev.c     | 214
> ++++++++++++++++++++++++++++++++++++++
> >   lib/bbdev/rte_bbdev.h     |  41 ++++++++
> >   lib/bbdev/rte_bbdev_pmd.h |   9 ++
> >   lib/bbdev/version.map     |   4 +
> >   4 files changed, 268 insertions(+)
> >
> > diff --git a/lib/bbdev/rte_bbdev.c b/lib/bbdev/rte_bbdev.c index
> > 13bde3c25b..9087862c76 100644
> > --- a/lib/bbdev/rte_bbdev.c
> > +++ b/lib/bbdev/rte_bbdev.c
> > @@ -1190,3 +1190,217 @@ rte_bbdev_enqueue_status_str(enum
> rte_bbdev_enqueue_status status)
> >   	rte_bbdev_log(ERR, "Invalid enqueue status");
> >   	return NULL;
> >   }
> > +
> > +
> > +int
> > +rte_bbdev_queue_ops_dump(uint16_t dev_id, uint16_t queue_id, FILE *f)
> > +{
> > +	struct rte_bbdev_queue_data *q_data;
> > +	struct rte_bbdev_stats *stats;
> > +	uint16_t i;
> > +	struct rte_bbdev *dev = get_dev(dev_id);
> > +
> > +	VALID_DEV_OR_RET_ERR(dev, dev_id);
> > +	VALID_QUEUE_OR_RET_ERR(queue_id, dev);
> > +	VALID_DEV_OPS_OR_RET_ERR(dev, dev_id);
> > +	VALID_FUNC_OR_RET_ERR(dev->dev_ops->queue_ops_dump,
> dev_id);
> > +
> > +	q_data = &dev->data->queues[queue_id];
> > +
> > +	if (f == NULL)
> > +		return -EINVAL;
> > +
> > +	fprintf(f, "Dump of operations on %s queue %d\n",
> > +			dev->data->name, queue_id);
> > +	fprintf(f, "  Last Enqueue Status %s\n",
> > +			rte_bbdev_enqueue_status_str(q_data-
> >enqueue_status));
> > +	for (i = 0; i < RTE_BBDEV_ENQ_STATUS_SIZE_MAX; i++)
> > +		if (q_data->queue_stats.enqueue_status_count[i] > 0)
> > +			fprintf(f, "  Enqueue Status Counters %s %" PRIu64
> "\n",
> > +					rte_bbdev_enqueue_status_str(i),
> > +					q_data-
> >queue_stats.enqueue_status_count[i]);
> > +	stats = &dev->data->queues[queue_id].queue_stats;
> > +
> > +	fprintf(f, "  Enqueue Count %" PRIu64 " Warning %" PRIu64 " Error %"
> PRIu64 "\n",
> > +			stats->enqueued_count, stats->enqueue_warn_count,
> > +			stats->enqueue_err_count);
> > +	fprintf(f, "  Dequeue Count %" PRIu64 " Warning %" PRIu64 " Error %"
> PRIu64 "\n",
> > +			stats->dequeued_count, stats->dequeue_warn_count,
> > +			stats->dequeue_err_count);
> > +
> > +	return dev->dev_ops->queue_ops_dump(dev, queue_id, f); }
> > +
> > +char *
> > +rte_bbdev_ops_param_string(void *op, enum rte_bbdev_op_type op_type)
> > +{
> > +	static char str[1024];
> > +	static char partial[1024];
> 
> It is better to have the string allocated by the application, it would be passed as
> a pointer and length of the allocated buffer would be passed also as an
> argument.

Ok. Updated in v3. Thanks

> 
> > +	struct rte_bbdev_dec_op *op_dec;
> > +	struct rte_bbdev_enc_op *op_enc;
> > +	struct rte_bbdev_fft_op *op_fft;
> > +	struct rte_bbdev_mldts_op *op_mldts;
> > +
> > +	rte_iova_t add0 = 0, add1 = 0, add2 = 0, add3 = 0, add4 = 0;
> > +
> > +	if (op == NULL) {
> > +		snprintf(str, sizeof(str), "Invalid Operation pointer\n");
> > +		return str;
> > +	}
> > +
> > +	if (op_type == RTE_BBDEV_OP_LDPC_DEC) {
> > +		op_dec = op;
> > +		if (op_dec->ldpc_dec.code_block_mode ==
> RTE_BBDEV_TRANSPORT_BLOCK)
> > +			snprintf(partial, sizeof(partial), "C %d Cab %d Ea %d Eb
> %d r %d",
> > +					op_dec->ldpc_dec.tb_params.c,
> > +					op_dec->ldpc_dec.tb_params.cab,
> > +					op_dec->ldpc_dec.tb_params.ea,
> > +					op_dec->ldpc_dec.tb_params.eb,
> > +					op_dec->ldpc_dec.tb_params.r);
> > +		else
> > +			snprintf(partial, sizeof(partial), "E %d", op_dec-
> >ldpc_dec.cb_params.e);
> > +		if (op_dec->ldpc_dec.input.data != NULL)
> > +			add0 = rte_pktmbuf_iova_offset(op_dec-
> >ldpc_dec.input.data, 0);
> > +		if (op_dec->ldpc_dec.hard_output.data != NULL)
> > +			add1 = rte_pktmbuf_iova_offset(op_dec-
> >ldpc_dec.hard_output.data, 0);
> > +		if (op_dec->ldpc_dec.soft_output.data != NULL)
> > +			add2 = rte_pktmbuf_iova_offset(op_dec-
> >ldpc_dec.soft_output.data, 0);
> > +		if (op_dec->ldpc_dec.harq_combined_input.data != NULL)
> > +			add3 = rte_pktmbuf_iova_offset(op_dec-
> >ldpc_dec.harq_combined_input.data,
> > +					0);
> > +		if (op_dec->ldpc_dec.harq_combined_output.data != NULL)
> > +			add4 = rte_pktmbuf_iova_offset(op_dec-
> >ldpc_dec.harq_combined_output.data,
> > +					0);
> > +		snprintf(str, sizeof(str), "op %x st %x BG %d Zc %d Ncb %d qm
> %d F %d Rv %d It %d It %d "
> > +			"HARQin %d in %" PRIx64 " ho %" PRIx64 " so %"
> PRIx64 " hi %" PRIx64 " "
> > +			"ho %" PRIx64 " %s\n",
> > +			op_dec->ldpc_dec.op_flags, op_dec->status,
> > +			op_dec->ldpc_dec.basegraph, op_dec->ldpc_dec.z_c,
> > +			op_dec->ldpc_dec.n_cb, op_dec->ldpc_dec.q_m,
> > +			op_dec->ldpc_dec.n_filler, op_dec-
> >ldpc_dec.rv_index,
> > +			op_dec->ldpc_dec.iter_max, op_dec-
> >ldpc_dec.iter_count,
> > +			op_dec->ldpc_dec.harq_combined_input.length,
> > +			add0, add1, add2, add3, add4, partial);
> > +	} else if (op_type == RTE_BBDEV_OP_TURBO_DEC) {
> > +		op_dec = op;
> > +		if (op_dec->turbo_dec.code_block_mode ==
> RTE_BBDEV_TRANSPORT_BLOCK)
> > +			snprintf(partial, sizeof(partial), "C %d Cab %d Ea %d Eb
> %d r %d K %d",
> > +					op_dec->turbo_dec.tb_params.c,
> > +					op_dec->turbo_dec.tb_params.cab,
> > +					op_dec->turbo_dec.tb_params.ea,
> > +					op_dec->turbo_dec.tb_params.eb,
> > +					op_dec->turbo_dec.tb_params.r,
> > +					op_dec-
> >turbo_dec.tb_params.k_neg);
> > +		else
> > +			snprintf(partial, sizeof(partial), "E %d K %d",
> > +					op_dec->turbo_dec.cb_params.e,
> > +					op_dec->turbo_dec.cb_params.k);
> > +		if (op_dec->turbo_dec.input.data != NULL)
> > +			add0 = rte_pktmbuf_iova_offset(op_dec-
> >turbo_dec.input.data, 0);
> > +		if (op_dec->turbo_dec.hard_output.data != NULL)
> > +			add1 = rte_pktmbuf_iova_offset(op_dec-
> >turbo_dec.hard_output.data, 0);
> > +		if (op_dec->turbo_dec.soft_output.data != NULL)
> > +			add2 = rte_pktmbuf_iova_offset(op_dec-
> >turbo_dec.soft_output.data, 0);
> > +		snprintf(str, sizeof(str), "op %x st %x CBM %d Iter %d map %d
> Rv %d ext %d "
> > +				"in %" PRIx64 " ho %" PRIx64 " so %" PRIx64 "
> %s\n",
> > +				op_dec->turbo_dec.op_flags, op_dec->status,
> > +				op_dec->turbo_dec.code_block_mode,
> > +				op_dec->turbo_dec.iter_max, op_dec-
> >turbo_dec.num_maps,
> > +				op_dec->turbo_dec.rv_index, op_dec-
> >turbo_dec.ext_scale,
> > +				add0, add1, add2, partial);
> > +	} else if (op_type == RTE_BBDEV_OP_LDPC_ENC) {
> > +		op_enc = op;
> > +		if (op_enc->ldpc_enc.code_block_mode ==
> RTE_BBDEV_TRANSPORT_BLOCK)
> > +			snprintf(partial, sizeof(partial), "C %d Cab %d Ea %d Eb
> %d r %d",
> > +					op_enc->ldpc_enc.tb_params.c,
> > +					op_enc->ldpc_enc.tb_params.cab,
> > +					op_enc->ldpc_enc.tb_params.ea,
> > +					op_enc->ldpc_enc.tb_params.eb,
> > +					op_enc->ldpc_enc.tb_params.r);
> > +		else
> > +			snprintf(partial, sizeof(partial), "E %d",
> > +					op_enc->ldpc_enc.cb_params.e);
> > +		if (op_enc->ldpc_enc.input.data != NULL)
> > +			add0 = rte_pktmbuf_iova_offset(op_enc-
> >ldpc_enc.input.data, 0);
> > +		if (op_enc->ldpc_enc.output.data != NULL)
> > +			add1 = rte_pktmbuf_iova_offset(op_enc-
> >ldpc_enc.output.data, 0);
> > +		snprintf(str, sizeof(str), "op %x st %x BG %d Zc %d Ncb %d q_m
> %d F %d Rv %d "
> > +				"in %" PRIx64 " out %" PRIx64 " %s\n",
> > +				op_enc->ldpc_enc.op_flags, op_enc->status,
> > +				op_enc->ldpc_enc.basegraph, op_enc-
> >ldpc_enc.z_c,
> > +				op_enc->ldpc_enc.n_cb, op_enc-
> >ldpc_enc.q_m,
> > +				op_enc->ldpc_enc.n_filler, op_enc-
> >ldpc_enc.rv_index,
> > +				add0, add1, partial);
> > +	} else if (op_type == RTE_BBDEV_OP_TURBO_ENC) {
> > +		op_enc = op;
> > +		if (op_enc->turbo_enc.code_block_mode ==
> RTE_BBDEV_TRANSPORT_BLOCK)
> > +			snprintf(partial, sizeof(partial),
> > +					"C %d Cab %d Ea %d Eb %d r %d K %d
> Ncb %d",
> > +					op_enc->turbo_enc.tb_params.c,
> > +					op_enc->turbo_enc.tb_params.cab,
> > +					op_enc->turbo_enc.tb_params.ea,
> > +					op_enc->turbo_enc.tb_params.eb,
> > +					op_enc->turbo_enc.tb_params.r,
> > +					op_enc->turbo_enc.tb_params.k_neg,
> > +					op_enc-
> >turbo_enc.tb_params.ncb_neg);
> > +		else
> > +			snprintf(partial, sizeof(partial), "E %d K %d",
> > +					op_enc->turbo_enc.cb_params.e,
> > +					op_enc->turbo_enc.cb_params.k);
> > +		if (op_enc->turbo_enc.input.data != NULL)
> > +			add0 = rte_pktmbuf_iova_offset(op_enc-
> >turbo_enc.input.data, 0);
> > +		if (op_enc->turbo_enc.output.data != NULL)
> > +			add1 = rte_pktmbuf_iova_offset(op_enc-
> >turbo_enc.output.data, 0);
> > +		snprintf(str, sizeof(str), "op %x st %x CBM %d Rv %d In %"
> PRIx64 " Out %" PRIx64 " %s\n",
> > +				op_enc->turbo_enc.op_flags, op_enc->status,
> > +				op_enc->turbo_enc.code_block_mode,
> op_enc->turbo_enc.rv_index,
> > +				add0, add1, partial);
> > +	} else if (op_type == RTE_BBDEV_OP_FFT) {
> > +		op_fft = op;
> > +		if (op_fft->fft.base_input.data != NULL)
> > +			add0 = rte_pktmbuf_iova_offset(op_fft-
> >fft.base_input.data, 0);
> > +		if (op_fft->fft.base_output.data != NULL)
> > +			add1 = rte_pktmbuf_iova_offset(op_fft-
> >fft.base_output.data, 0);
> > +		if (op_fft->fft.dewindowing_input.data != NULL)
> > +			add2 = rte_pktmbuf_iova_offset(op_fft-
> >fft.dewindowing_input.data, 0);
> > +		if (op_fft->fft.power_meas_output.data != NULL)
> > +			add3 = rte_pktmbuf_iova_offset(op_fft-
> >fft.power_meas_output.data, 0);
> > +		snprintf(str, sizeof(str), "op %x st %x in %d inl %d out %d outl
> %d cs %x ants %d "
> > +				"idft %d dft %d cst %d ish %d dsh %d ncs %d
> pwsh %d fp16 %d fr %d "
> > +				"outde %d in %" PRIx64 " out %" PRIx64 " dw
> %" PRIx64 " "
> > +				"pm %" PRIx64 "\n",
> > +				op_fft->fft.op_flags, op_fft->status,
> > +				op_fft->fft.input_sequence_size, op_fft-
> >fft.input_leading_padding,
> > +				op_fft->fft.output_sequence_size,
> > +				op_fft->fft.output_leading_depadding,
> > +				op_fft->fft.cs_bitmap, op_fft-
> >fft.num_antennas_log2,
> > +				op_fft->fft.idft_log2, op_fft->fft.dft_log2,
> > +				op_fft->fft.cs_time_adjustment,
> > +				op_fft->fft.idft_shift, op_fft->fft.dft_shift,
> > +				op_fft->fft.ncs_reciprocal, op_fft-
> >fft.power_shift,
> > +				op_fft->fft.fp16_exp_adjust, op_fft-
> >fft.freq_resample_mode,
> > +				op_fft->fft.output_depadded_size, add0, add1,
> add2, add3);
> > +	} else if (op_type == RTE_BBDEV_OP_MLDTS) {
> > +		op_mldts = op;
> > +		if (op_mldts->mldts.qhy_input.data != NULL)
> > +			add0 = rte_pktmbuf_iova_offset(op_mldts-
> >mldts.qhy_input.data, 0);
> > +		if (op_mldts->mldts.r_input.data != NULL)
> > +			add1 = rte_pktmbuf_iova_offset(op_mldts-
> >mldts.r_input.data, 0);
> > +		if (op_mldts->mldts.output.data != NULL)
> > +			add2 = rte_pktmbuf_iova_offset(op_mldts-
> >mldts.output.data, 0);
> > +		snprintf(str, sizeof(str),
> > +				"op %x st %x rbs %d lay %d rrep %d crep%d
> qm %d %d %d %d "
> > +				"qhy %" PRIx64 " r %" PRIx64 " out %" PRIx64
> "\n",
> > +				op_mldts->mldts.op_flags, op_mldts->status,
> > +				op_mldts->mldts.num_rbs, op_mldts-
> >mldts.num_layers,
> > +				op_mldts->mldts.r_rep, op_mldts-
> >mldts.c_rep,
> > +				op_mldts->mldts.q_m[0], op_mldts-
> >mldts.q_m[1],
> > +				op_mldts->mldts.q_m[2], op_mldts-
> >mldts.q_m[3],
> > +				add0, add1, add2);
> > +
> > +	} else {
> > +		snprintf(str, sizeof(str), "Invalid Operation type %d\n",
> op_type);
> > +	}
> > +
> > +	return str;
> > +}
> > diff --git a/lib/bbdev/rte_bbdev.h b/lib/bbdev/rte_bbdev.h index
> > 0cbfdd1c95..a70d841379 100644
> > --- a/lib/bbdev/rte_bbdev.h
> > +++ b/lib/bbdev/rte_bbdev.h
> > @@ -1061,6 +1061,47 @@ rte_bbdev_device_status_str(enum
> rte_bbdev_device_status status);
> >   const char*
> >   rte_bbdev_enqueue_status_str(enum rte_bbdev_enqueue_status status);
> >
> > +/**
> > + * Dump operations info from device to a file.
> > + * This API is used for debugging provided input operations, not a dataplane
> API.
> > + *
> > + *  @param dev_id
> > + *    The device identifier.
> > + *
> > + *  @param queue_index
> > + *    Index of queue.
> > + *
> > + *  @param file
> > + *    A pointer to a file for output.
> > + *
> > + * @returns
> > + *   - 0 on success
> > + *   - ENOTSUP if interrupts are not supported by the identified device
> > + *   - negative value on failure - as returned from PMD
> > + *
> > + */
> > +__rte_experimental
> > +int
> > +rte_bbdev_queue_ops_dump(uint16_t dev_id, uint16_t queue_index, FILE
> > +*file);
> > +
> > +
> > +/**
> > + * String of parameters related to the parameters of an operation of a given
> type.
> > + *
> > + *  @param op
> > + *    Pointer to an operation.
> > + *
> > + *  @param op_type
> > + *    Operation type enum.
> > + *
> > + * @returns
> > + *   String describing the provided operation.
> > + *
> > + */
> > +__rte_experimental
> > +char *
> > +rte_bbdev_ops_param_string(void *op, enum rte_bbdev_op_type op_type);
> > +
> >   #ifdef __cplusplus
> >   }
> >   #endif
> > diff --git a/lib/bbdev/rte_bbdev_pmd.h b/lib/bbdev/rte_bbdev_pmd.h
> > index 442b23943d..c21a7f0c1e 100644
> > --- a/lib/bbdev/rte_bbdev_pmd.h
> > +++ b/lib/bbdev/rte_bbdev_pmd.h
> > @@ -133,6 +133,13 @@ typedef int
> (*rte_bbdev_queue_intr_enable_t)(struct rte_bbdev *dev,
> >   typedef int (*rte_bbdev_queue_intr_disable_t)(struct rte_bbdev *dev,
> >   				    uint16_t queue_id);
> >
> > +/*
> > + * @internal
> > + * Function to dump previous operations on a queue of a device.
> > + */
> > +typedef int (*rte_bbdev_queue_ops_dump_t)(struct rte_bbdev *dev,
> > +		uint16_t queue_id, FILE *file);
> > +
> >   /**
> >    * Operations implemented by drivers. Fields marked as "Required" must be
> >    * provided by a driver for a device to have basic functionality. "Optional"
> > @@ -170,6 +177,8 @@ struct rte_bbdev_ops {
> >   	rte_bbdev_queue_intr_enable_t queue_intr_enable;
> >   	/** Disable queue interrupt. Optional */
> >   	rte_bbdev_queue_intr_disable_t queue_intr_disable;
> > +	/** Dump operations on the queue. Optional */
> > +	rte_bbdev_queue_ops_dump_t queue_ops_dump;
> >   };
> >
> >   /**
> > diff --git a/lib/bbdev/version.map b/lib/bbdev/version.map index
> > e0d82ff752..db6dfdf3c6 100644
> > --- a/lib/bbdev/version.map
> > +++ b/lib/bbdev/version.map
> > @@ -54,4 +54,8 @@ EXPERIMENTAL {
> >   	rte_bbdev_enqueue_mldts_ops;
> >   	rte_bbdev_mldts_op_alloc_bulk;
> >   	rte_bbdev_mldts_op_free_bulk;
> > +
> > +	# added in 24.11
> > +	rte_bbdev_queue_ops_dump;
> > +	rte_bbdev_ops_param_string;
> >   };