Re: [dpdk-dev] [PATCH v9 09/10] baseband/acc100: add debug function to validate input

["Chautru, Nicolas" <nicolas.chautru@intel.com>]

Hi Tom, 

> From: Tom Rix <trix@redhat.com>
> On 9/28/20 5:29 PM, Nicolas Chautru wrote:
> > Debug functions to validate the input API from user Only enabled in
> > DEBUG mode at build time
> >
> > Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
> > Acked-by: Liu Tianjiao <Tianjiao.liu@intel.com>
> > ---
> >  drivers/baseband/acc100/rte_acc100_pmd.c | 424
> > +++++++++++++++++++++++++++++++
> >  1 file changed, 424 insertions(+)
> >
> > diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c
> > b/drivers/baseband/acc100/rte_acc100_pmd.c
> > index b6d9e7c..3589814 100644
> > --- a/drivers/baseband/acc100/rte_acc100_pmd.c
> > +++ b/drivers/baseband/acc100/rte_acc100_pmd.c
> > @@ -1945,6 +1945,231 @@
> >
> >  }
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +/* Validates turbo encoder parameters */ static inline int
> > +validate_enc_op(struct rte_bbdev_enc_op *op) {
> > +	struct rte_bbdev_op_turbo_enc *turbo_enc = &op->turbo_enc;
> > +	struct rte_bbdev_op_enc_turbo_cb_params *cb = NULL;
> > +	struct rte_bbdev_op_enc_turbo_tb_params *tb = NULL;
> > +	uint16_t kw, kw_neg, kw_pos;
> > +
> > +	if (op->mempool == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid mempool pointer");
> > +		return -1;
> > +	}
> > +	if (turbo_enc->input.data == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid input pointer");
> > +		return -1;
> > +	}
> > +	if (turbo_enc->output.data == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid output pointer");
> > +		return -1;
> > +	}
> > +	if (turbo_enc->rv_index > 3) {
> > +		rte_bbdev_log(ERR,
> > +				"rv_index (%u) is out of range 0 <= value <=
> 3",
> > +				turbo_enc->rv_index);
> > +		return -1;
> > +	}
> > +	if (turbo_enc->code_block_mode != 0 &&
> > +			turbo_enc->code_block_mode != 1) {
> > +		rte_bbdev_log(ERR,
> > +				"code_block_mode (%u) is out of range 0 <=
> value <= 1",
> > +				turbo_enc->code_block_mode);
> > +		return -1;
> > +	}
> > +
> > +	if (turbo_enc->code_block_mode == 0) {
> > +		tb = &turbo_enc->tb_params;
> > +		if ((tb->k_neg < RTE_BBDEV_TURBO_MIN_CB_SIZE
> > +				|| tb->k_neg >
> RTE_BBDEV_TURBO_MAX_CB_SIZE)
> > +				&& tb->c_neg > 0) {
> > +			rte_bbdev_log(ERR,
> > +					"k_neg (%u) is out of range %u <=
> value <= %u",
> > +					tb->k_neg,
> RTE_BBDEV_TURBO_MIN_CB_SIZE,
> > +					RTE_BBDEV_TURBO_MAX_CB_SIZE);
> > +			return -1;
> > +		}
> > +		if (tb->k_pos < RTE_BBDEV_TURBO_MIN_CB_SIZE
> > +				|| tb->k_pos >
> RTE_BBDEV_TURBO_MAX_CB_SIZE) {
> > +			rte_bbdev_log(ERR,
> > +					"k_pos (%u) is out of range %u <=
> value <= %u",
> > +					tb->k_pos,
> RTE_BBDEV_TURBO_MIN_CB_SIZE,
> > +					RTE_BBDEV_TURBO_MAX_CB_SIZE);
> > +			return -1;
> > +		}
> > +		if (tb->c_neg > (RTE_BBDEV_TURBO_MAX_CODE_BLOCKS -
> 1))
> > +			rte_bbdev_log(ERR,
> > +					"c_neg (%u) is out of range 0 <= value
> <= %u",
> > +					tb->c_neg,
> > +
> 	RTE_BBDEV_TURBO_MAX_CODE_BLOCKS - 1);
> > +		if (tb->c < 1 || tb->c >
> RTE_BBDEV_TURBO_MAX_CODE_BLOCKS) {
> > +			rte_bbdev_log(ERR,
> > +					"c (%u) is out of range 1 <= value <=
> %u",
> > +					tb->c,
> RTE_BBDEV_TURBO_MAX_CODE_BLOCKS);
> > +			return -1;
> > +		}
> > +		if (tb->cab > tb->c) {
> > +			rte_bbdev_log(ERR,
> > +					"cab (%u) is greater than c (%u)",
> > +					tb->cab, tb->c);
> > +			return -1;
> > +		}
> > +		if ((tb->ea < RTE_BBDEV_TURBO_MIN_CB_SIZE || (tb->ea %
> 2))
> > +				&& tb->r < tb->cab) {
> > +			rte_bbdev_log(ERR,
> > +					"ea (%u) is less than %u or it is not
> even",
> > +					tb->ea,
> RTE_BBDEV_TURBO_MIN_CB_SIZE);
> > +			return -1;
> > +		}
> > +		if ((tb->eb < RTE_BBDEV_TURBO_MIN_CB_SIZE || (tb->eb %
> 2))
> > +				&& tb->c > tb->cab) {
> > +			rte_bbdev_log(ERR,
> > +					"eb (%u) is less than %u or it is not
> even",
> > +					tb->eb,
> RTE_BBDEV_TURBO_MIN_CB_SIZE);
> > +			return -1;
> > +		}
> > +
> > +		kw_neg = 3 * RTE_ALIGN_CEIL(tb->k_neg + 4,
> > +					RTE_BBDEV_TURBO_C_SUBBLOCK);
> > +		if (tb->ncb_neg < tb->k_neg || tb->ncb_neg > kw_neg) {
> > +			rte_bbdev_log(ERR,
> > +					"ncb_neg (%u) is out of range (%u)
> k_neg <= value <= (%u) kw_neg",
> > +					tb->ncb_neg, tb->k_neg, kw_neg);
> > +			return -1;
> > +		}
> > +
> > +		kw_pos = 3 * RTE_ALIGN_CEIL(tb->k_pos + 4,
> > +					RTE_BBDEV_TURBO_C_SUBBLOCK);
> > +		if (tb->ncb_pos < tb->k_pos || tb->ncb_pos > kw_pos) {
> > +			rte_bbdev_log(ERR,
> > +					"ncb_pos (%u) is out of range (%u)
> k_pos <= value <= (%u) kw_pos",
> > +					tb->ncb_pos, tb->k_pos, kw_pos);
> > +			return -1;
> > +		}
> > +		if (tb->r > (tb->c - 1)) {
> > +			rte_bbdev_log(ERR,
> > +					"r (%u) is greater than c - 1 (%u)",
> > +					tb->r, tb->c - 1);
> > +			return -1;
> > +		}
> > +	} else {
> > +		cb = &turbo_enc->cb_params;
> > +		if (cb->k < RTE_BBDEV_TURBO_MIN_CB_SIZE
> > +				|| cb->k >
> RTE_BBDEV_TURBO_MAX_CB_SIZE) {
> > +			rte_bbdev_log(ERR,
> > +					"k (%u) is out of range %u <= value <=
> %u",
> > +					cb->k,
> RTE_BBDEV_TURBO_MIN_CB_SIZE,
> > +					RTE_BBDEV_TURBO_MAX_CB_SIZE);
> > +			return -1;
> > +		}
> > +
> > +		if (cb->e < RTE_BBDEV_TURBO_MIN_CB_SIZE || (cb->e % 2))
> {
> > +			rte_bbdev_log(ERR,
> > +					"e (%u) is less than %u or it is not
> even",
> > +					cb->e,
> RTE_BBDEV_TURBO_MIN_CB_SIZE);
> > +			return -1;
> > +		}
> > +
> > +		kw = RTE_ALIGN_CEIL(cb->k + 4,
> RTE_BBDEV_TURBO_C_SUBBLOCK) * 3;
> > +		if (cb->ncb < cb->k || cb->ncb > kw) {
> > +			rte_bbdev_log(ERR,
> > +					"ncb (%u) is out of range (%u) k <=
> value <= (%u) kw",
> > +					cb->ncb, cb->k, kw);
> > +			return -1;
> > +		}
> > +	}
> > +
> > +	return 0;
> > +}
> > +/* Validates LDPC encoder parameters */ static inline int
> > +validate_ldpc_enc_op(struct rte_bbdev_enc_op *op) {
> > +	struct rte_bbdev_op_ldpc_enc *ldpc_enc = &op->ldpc_enc;
> > +
> > +	if (op->mempool == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid mempool pointer");
> > +		return -1;
> > +	}
> > +	if (ldpc_enc->input.data == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid input pointer");
> > +		return -1;
> > +	}
> > +	if (ldpc_enc->output.data == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid output pointer");
> > +		return -1;
> > +	}
> > +	if (ldpc_enc->input.length >
> > +			RTE_BBDEV_LDPC_MAX_CB_SIZE >> 3) {
> > +		rte_bbdev_log(ERR, "CB size (%u) is too big, max: %d",
> > +				ldpc_enc->input.length,
> > +				RTE_BBDEV_LDPC_MAX_CB_SIZE);
> > +		return -1;
> > +	}
> > +	if ((ldpc_enc->basegraph > 2) || (ldpc_enc->basegraph == 0)) {
> > +		rte_bbdev_log(ERR,
> > +				"BG (%u) is out of range 1 <= value <= 2",
> > +				ldpc_enc->basegraph);
> > +		return -1;
> > +	}
> > +	if (ldpc_enc->rv_index > 3) {
> > +		rte_bbdev_log(ERR,
> > +				"rv_index (%u) is out of range 0 <= value <=
> 3",
> > +				ldpc_enc->rv_index);
> > +		return -1;
> > +	}
> > +	if (ldpc_enc->code_block_mode > 1) {
> > +		rte_bbdev_log(ERR,
> > +				"code_block_mode (%u) is out of range 0 <=
> value <= 1",
> > +				ldpc_enc->code_block_mode);
> > +		return -1;
> > +	}
> > +
> > +	return 0;
> > +}
> > +
> > +/* Validates LDPC decoder parameters */ static inline int
> > +validate_ldpc_dec_op(struct rte_bbdev_dec_op *op) {
> > +	struct rte_bbdev_op_ldpc_dec *ldpc_dec = &op->ldpc_dec;
> > +
> > +	if (op->mempool == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid mempool pointer");
> > +		return -1;
> > +	}
> > +	if ((ldpc_dec->basegraph > 2) || (ldpc_dec->basegraph == 0)) {
> > +		rte_bbdev_log(ERR,
> > +				"BG (%u) is out of range 1 <= value <= 2",
> > +				ldpc_dec->basegraph);
> > +		return -1;
> > +	}
> > +	if (ldpc_dec->iter_max == 0) {
> > +		rte_bbdev_log(ERR,
> > +				"iter_max (%u) is equal to 0",
> > +				ldpc_dec->iter_max);
> > +		return -1;
> > +	}
> > +	if (ldpc_dec->rv_index > 3) {
> > +		rte_bbdev_log(ERR,
> > +				"rv_index (%u) is out of range 0 <= value <=
> 3",
> > +				ldpc_dec->rv_index);
> > +		return -1;
> > +	}
> > +	if (ldpc_dec->code_block_mode > 1) {
> > +		rte_bbdev_log(ERR,
> > +				"code_block_mode (%u) is out of range 0 <=
> value <= 1",
> > +				ldpc_dec->code_block_mode);
> > +		return -1;
> > +	}
> > +
> > +	return 0;
> > +}
> > +#endif
> Could have an #else with stubs so the users do not have to bother with
> #ifdef decorations

I see what you mean. Debatable. But given this is done the same way for other
bbdev driver I would rather keep consistency. 

> > +
> >  /* Enqueue one encode operations for ACC100 device in CB mode */
> > static inline int  enqueue_enc_one_op_cb(struct acc100_queue *q,
> > struct rte_bbdev_enc_op *op, @@ -1956,6 +2181,14 @@
> >  		seg_total_left;
> >  	struct rte_mbuf *input, *output_head, *output;
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +	/* Validate op structure */
> > +	if (validate_enc_op(op) == -1) {
> > +		rte_bbdev_log(ERR, "Turbo encoder validation failed");
> > +		return -EINVAL;
> > +	}
> > +#endif
> > +
> >  	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
> >  			& q->sw_ring_wrap_mask);
> >  	desc = q->ring_addr + desc_idx;
> > @@ -2008,6 +2241,14 @@
> >  	uint16_t  in_length_in_bytes;
> >  	struct rte_bbdev_op_ldpc_enc *enc = &ops[0]->ldpc_enc;
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +	/* Validate op structure */
> > +	if (validate_ldpc_enc_op(ops[0]) == -1) {
> > +		rte_bbdev_log(ERR, "LDPC encoder validation failed");
> > +		return -EINVAL;
> > +	}
> > +#endif
> > +
> >  	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
> >  			& q->sw_ring_wrap_mask);
> >  	desc = q->ring_addr + desc_idx;
> > @@ -2065,6 +2306,14 @@
> >  		seg_total_left;
> >  	struct rte_mbuf *input, *output_head, *output;
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +	/* Validate op structure */
> > +	if (validate_ldpc_enc_op(op) == -1) {
> > +		rte_bbdev_log(ERR, "LDPC encoder validation failed");
> > +		return -EINVAL;
> > +	}
> > +#endif
> > +
> >  	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
> >  			& q->sw_ring_wrap_mask);
> >  	desc = q->ring_addr + desc_idx;
> > @@ -2119,6 +2368,14 @@
> >  	struct rte_mbuf *input, *output_head, *output;
> >  	uint16_t current_enqueued_cbs = 0;
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +	/* Validate op structure */
> > +	if (validate_enc_op(op) == -1) {
> > +		rte_bbdev_log(ERR, "Turbo encoder validation failed");
> > +		return -EINVAL;
> > +	}
> > +#endif
> > +
> >  	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
> >  			& q->sw_ring_wrap_mask);
> >  	desc = q->ring_addr + desc_idx;
> > @@ -2191,6 +2448,142 @@
> >  	return current_enqueued_cbs;
> >  }
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +/* Validates turbo decoder parameters */ static inline int
> > +validate_dec_op(struct rte_bbdev_dec_op *op) {
> 
> This (guessing) later dec validation share similar code with enc validation,
> consider function for the common parts.

They have different API really, a few checks only have common range checks.
So not convinced it would help personnaly.
Thanks

> 
> Tom
> 
> > +	struct rte_bbdev_op_turbo_dec *turbo_dec = &op->turbo_dec;
> > +	struct rte_bbdev_op_dec_turbo_cb_params *cb = NULL;
> > +	struct rte_bbdev_op_dec_turbo_tb_params *tb = NULL;
> > +
> > +	if (op->mempool == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid mempool pointer");
> > +		return -1;
> > +	}
> > +	if (turbo_dec->input.data == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid input pointer");
> > +		return -1;
> > +	}
> > +	if (turbo_dec->hard_output.data == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid hard_output pointer");
> > +		return -1;
> > +	}
> > +	if (check_bit(turbo_dec->op_flags,
> RTE_BBDEV_TURBO_SOFT_OUTPUT) &&
> > +			turbo_dec->soft_output.data == NULL) {
> > +		rte_bbdev_log(ERR, "Invalid soft_output pointer");
> > +		return -1;
> > +	}
> > +	if (turbo_dec->rv_index > 3) {
> > +		rte_bbdev_log(ERR,
> > +				"rv_index (%u) is out of range 0 <= value <=
> 3",
> > +				turbo_dec->rv_index);
> > +		return -1;
> > +	}
> > +	if (turbo_dec->iter_min < 1) {
> > +		rte_bbdev_log(ERR,
> > +				"iter_min (%u) is less than 1",
> > +				turbo_dec->iter_min);
> > +		return -1;
> > +	}
> > +	if (turbo_dec->iter_max <= 2) {
> > +		rte_bbdev_log(ERR,
> > +				"iter_max (%u) is less than or equal to 2",
> > +				turbo_dec->iter_max);
> > +		return -1;
> > +	}
> > +	if (turbo_dec->iter_min > turbo_dec->iter_max) {
> > +		rte_bbdev_log(ERR,
> > +				"iter_min (%u) is greater than iter_max
> (%u)",
> > +				turbo_dec->iter_min, turbo_dec->iter_max);
> > +		return -1;
> > +	}
> > +	if (turbo_dec->code_block_mode != 0 &&
> > +			turbo_dec->code_block_mode != 1) {
> > +		rte_bbdev_log(ERR,
> > +				"code_block_mode (%u) is out of range 0 <=
> value <= 1",
> > +				turbo_dec->code_block_mode);
> > +		return -1;
> > +	}
> > +
> > +	if (turbo_dec->code_block_mode == 0) {
> > +		tb = &turbo_dec->tb_params;
> > +		if ((tb->k_neg < RTE_BBDEV_TURBO_MIN_CB_SIZE
> > +				|| tb->k_neg >
> RTE_BBDEV_TURBO_MAX_CB_SIZE)
> > +				&& tb->c_neg > 0) {
> > +			rte_bbdev_log(ERR,
> > +					"k_neg (%u) is out of range %u <=
> value <= %u",
> > +					tb->k_neg,
> RTE_BBDEV_TURBO_MIN_CB_SIZE,
> > +					RTE_BBDEV_TURBO_MAX_CB_SIZE);
> > +			return -1;
> > +		}
> > +		if ((tb->k_pos < RTE_BBDEV_TURBO_MIN_CB_SIZE
> > +				|| tb->k_pos >
> RTE_BBDEV_TURBO_MAX_CB_SIZE)
> > +				&& tb->c > tb->c_neg) {
> > +			rte_bbdev_log(ERR,
> > +					"k_pos (%u) is out of range %u <=
> value <= %u",
> > +					tb->k_pos,
> RTE_BBDEV_TURBO_MIN_CB_SIZE,
> > +					RTE_BBDEV_TURBO_MAX_CB_SIZE);
> > +			return -1;
> > +		}
> > +		if (tb->c_neg > (RTE_BBDEV_TURBO_MAX_CODE_BLOCKS -
> 1))
> > +			rte_bbdev_log(ERR,
> > +					"c_neg (%u) is out of range 0 <= value
> <= %u",
> > +					tb->c_neg,
> > +
> 	RTE_BBDEV_TURBO_MAX_CODE_BLOCKS - 1);
> > +		if (tb->c < 1 || tb->c >
> RTE_BBDEV_TURBO_MAX_CODE_BLOCKS) {
> > +			rte_bbdev_log(ERR,
> > +					"c (%u) is out of range 1 <= value <=
> %u",
> > +					tb->c,
> RTE_BBDEV_TURBO_MAX_CODE_BLOCKS);
> > +			return -1;
> > +		}
> > +		if (tb->cab > tb->c) {
> > +			rte_bbdev_log(ERR,
> > +					"cab (%u) is greater than c (%u)",
> > +					tb->cab, tb->c);
> > +			return -1;
> > +		}
> > +		if (check_bit(turbo_dec->op_flags,
> RTE_BBDEV_TURBO_EQUALIZER) &&
> > +				(tb->ea < RTE_BBDEV_TURBO_MIN_CB_SIZE
> > +						|| (tb->ea % 2))
> > +				&& tb->cab > 0) {
> > +			rte_bbdev_log(ERR,
> > +					"ea (%u) is less than %u or it is not
> even",
> > +					tb->ea,
> RTE_BBDEV_TURBO_MIN_CB_SIZE);
> > +			return -1;
> > +		}
> > +		if (check_bit(turbo_dec->op_flags,
> RTE_BBDEV_TURBO_EQUALIZER) &&
> > +				(tb->eb < RTE_BBDEV_TURBO_MIN_CB_SIZE
> > +						|| (tb->eb % 2))
> > +				&& tb->c > tb->cab) {
> > +			rte_bbdev_log(ERR,
> > +					"eb (%u) is less than %u or it is not
> even",
> > +					tb->eb,
> RTE_BBDEV_TURBO_MIN_CB_SIZE);
> > +		}
> > +	} else {
> > +		cb = &turbo_dec->cb_params;
> > +		if (cb->k < RTE_BBDEV_TURBO_MIN_CB_SIZE
> > +				|| cb->k >
> RTE_BBDEV_TURBO_MAX_CB_SIZE) {
> > +			rte_bbdev_log(ERR,
> > +					"k (%u) is out of range %u <= value <=
> %u",
> > +					cb->k,
> RTE_BBDEV_TURBO_MIN_CB_SIZE,
> > +					RTE_BBDEV_TURBO_MAX_CB_SIZE);
> > +			return -1;
> > +		}
> > +		if (check_bit(turbo_dec->op_flags,
> RTE_BBDEV_TURBO_EQUALIZER) &&
> > +				(cb->e < RTE_BBDEV_TURBO_MIN_CB_SIZE
> ||
> > +				(cb->e % 2))) {
> > +			rte_bbdev_log(ERR,
> > +					"e (%u) is less than %u or it is not
> even",
> > +					cb->e,
> RTE_BBDEV_TURBO_MIN_CB_SIZE);
> > +			return -1;
> > +		}
> > +	}
> > +
> > +	return 0;
> > +}
> > +#endif
> > +
> >  /** Enqueue one decode operations for ACC100 device in CB mode */
> > static inline int  enqueue_dec_one_op_cb(struct acc100_queue *q,
> > struct rte_bbdev_dec_op *op, @@ -2203,6 +2596,14 @@
> >  	struct rte_mbuf *input, *h_output_head, *h_output,
> >  		*s_output_head, *s_output;
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +	/* Validate op structure */
> > +	if (validate_dec_op(op) == -1) {
> > +		rte_bbdev_log(ERR, "Turbo decoder validation failed");
> > +		return -EINVAL;
> > +	}
> > +#endif
> > +
> >  	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
> >  			& q->sw_ring_wrap_mask);
> >  	desc = q->ring_addr + desc_idx;
> > @@ -2426,6 +2827,13 @@
> >  		return ret;
> >  	}
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +	/* Validate op structure */
> > +	if (validate_ldpc_dec_op(op) == -1) {
> > +		rte_bbdev_log(ERR, "LDPC decoder validation failed");
> > +		return -EINVAL;
> > +	}
> > +#endif
> >  	union acc100_dma_desc *desc;
> >  	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
> >  			& q->sw_ring_wrap_mask);
> > @@ -2521,6 +2929,14 @@
> >  	struct rte_mbuf *input, *h_output_head, *h_output;
> >  	uint16_t current_enqueued_cbs = 0;
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +	/* Validate op structure */
> > +	if (validate_ldpc_dec_op(op) == -1) {
> > +		rte_bbdev_log(ERR, "LDPC decoder validation failed");
> > +		return -EINVAL;
> > +	}
> > +#endif
> > +
> >  	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
> >  			& q->sw_ring_wrap_mask);
> >  	desc = q->ring_addr + desc_idx;
> > @@ -2611,6 +3027,14 @@
> >  		*s_output_head, *s_output;
> >  	uint16_t current_enqueued_cbs = 0;
> >
> > +#ifdef RTE_LIBRTE_BBDEV_DEBUG
> > +	/* Validate op structure */
> > +	if (validate_dec_op(op) == -1) {
> > +		rte_bbdev_log(ERR, "Turbo decoder validation failed");
> > +		return -EINVAL;
> > +	}
> > +#endif
> > +
> >  	uint16_t desc_idx = ((q->sw_ring_head + total_enqueued_cbs)
> >  			& q->sw_ring_wrap_mask);
> >  	desc = q->ring_addr + desc_idx;