RE: [PATCH v1] crypto: fix build issues on crypto callbacks macro undefined

["Gujjar, Abhinandan S" <abhinandan.gujjar@intel.com>]

> -----Original Message-----
> From: Kundapura, Ganapati <ganapati.kundapura@intel.com>
> Sent: Tuesday, April 16, 2024 1:42 PM
> To: dev@dpdk.org
> Cc: Gujjar, Abhinandan S <abhinandan.gujjar@intel.com>; Power, Ciara
> <ciara.power@intel.com>; gakhil@marvell.com; fanzhang.oss@gmail.com
> Subject: [PATCH v1] crypto: fix build issues on crypto callbacks macro undefined
> 
> Crypto callbacks macro is defined with value 1 and being used with ifdef, on
> config value is changed to 0 to disable, crypto callback changes still being
> compiled.
> 
> Defined crypto callbacks macro without value, undef to disable
> 
> Wrapped crypto callback changes with RTE_CRYPTO_CALLBACKS macro to fix
> build issues when macro is undefined.
> 
> As callback head nodes have valid pointer, this patch checks the next node from
> the head if callbacks registered.
> 
> Fixes: 1c3ffb9 ("cryptodev: add enqueue and dequeue callbacks")
> Fixes: 5523a75 ("test/crypto: add case for enqueue/dequeue callbacks")
> 
> Signed-off-by: Ganapati Kundapura <ganapati.kundapura@intel.com>
>
Acked-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
 
> diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c index
> 1703ebccf1..1a592f2302 100644
> --- a/app/test/test_cryptodev.c
> +++ b/app/test/test_cryptodev.c
> @@ -14547,6 +14547,7 @@ test_null_burst_operation(void)
>  	return TEST_SUCCESS;
>  }
> 
> +#ifdef RTE_CRYPTO_CALLBACKS
>  static uint16_t
>  test_enq_callback(uint16_t dev_id, uint16_t qp_id, struct rte_crypto_op **ops,
>  		  uint16_t nb_ops, void *user_param)
> @@ -14784,6 +14785,7 @@ test_deq_callback_setup(void)
> 
>  	return TEST_SUCCESS;
>  }
> +#endif /* RTE_CRYPTO_CALLBACKS */
> 
>  static void
>  generate_gmac_large_plaintext(uint8_t *data) @@ -18069,8 +18071,10 @@
> static struct unit_test_suite cryptodev_gen_testsuite  = {
>  		TEST_CASE_ST(ut_setup, ut_teardown,
> 
> 	test_device_configure_invalid_queue_pair_ids),
>  		TEST_CASE_ST(ut_setup, ut_teardown, test_stats),
> +#ifdef RTE_CRYPTO_CALLBACKS
>  		TEST_CASE_ST(ut_setup, ut_teardown,
> test_enq_callback_setup),
>  		TEST_CASE_ST(ut_setup, ut_teardown,
> test_deq_callback_setup),
> +#endif
>  		TEST_CASES_END() /**< NULL terminate unit test array */
>  	}
>  };
> diff --git a/config/rte_config.h b/config/rte_config.h index
> dd7bb0d35b..b647a69ba8 100644
> --- a/config/rte_config.h
> +++ b/config/rte_config.h
> @@ -72,7 +72,7 @@
>  /* cryptodev defines */
>  #define RTE_CRYPTO_MAX_DEVS 64
>  #define RTE_CRYPTODEV_NAME_LEN 64
> -#define RTE_CRYPTO_CALLBACKS 1
> +#define RTE_CRYPTO_CALLBACKS	/* No Value, undef/comment out to
> disable */
> 
>  /* compressdev defines */
>  #define RTE_COMPRESS_MAX_DEVS 64
> diff --git a/lib/cryptodev/rte_cryptodev.c b/lib/cryptodev/rte_cryptodev.c index
> 886eb7adc4..5f3b17a517 100644
> --- a/lib/cryptodev/rte_cryptodev.c
> +++ b/lib/cryptodev/rte_cryptodev.c
> @@ -628,6 +628,7 @@ rte_cryptodev_asym_xform_capability_check_hash(
>  	return ret;
>  }
> 
> +#ifdef RTE_CRYPTO_CALLBACKS
>  /* spinlock for crypto device enq callbacks */  static rte_spinlock_t
> rte_cryptodev_callback_lock = RTE_SPINLOCK_INITIALIZER;
> 
> @@ -744,6 +745,7 @@ cryptodev_cb_init(struct rte_cryptodev *dev)
>  	cryptodev_cb_cleanup(dev);
>  	return -ENOMEM;
>  }
> +#endif /* RTE_CRYPTO_CALLBACKS */
> 
>  const char *
>  rte_cryptodev_get_feature_name(uint64_t flag) @@ -1244,9 +1246,11 @@
> rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
>  	if (*dev->dev_ops->dev_configure == NULL)
>  		return -ENOTSUP;
> 
> +#ifdef RTE_CRYPTO_CALLBACKS
>  	rte_spinlock_lock(&rte_cryptodev_callback_lock);
>  	cryptodev_cb_cleanup(dev);
>  	rte_spinlock_unlock(&rte_cryptodev_callback_lock);
> +#endif
> 
>  	/* Setup new number of queue pairs and reconfigure device. */
>  	diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
> @@ -1257,6 +1261,7 @@ rte_cryptodev_configure(uint8_t dev_id, struct
> rte_cryptodev_config *config)
>  		return diag;
>  	}
> 
> +#ifdef RTE_CRYPTO_CALLBACKS
>  	rte_spinlock_lock(&rte_cryptodev_callback_lock);
>  	diag = cryptodev_cb_init(dev);
>  	rte_spinlock_unlock(&rte_cryptodev_callback_lock);
> @@ -1264,6 +1269,7 @@ rte_cryptodev_configure(uint8_t dev_id, struct
> rte_cryptodev_config *config)
>  		CDEV_LOG_ERR("Callback init failed for dev_id=%d", dev_id);
>  		return diag;
>  	}
> +#endif
> 
>  	rte_cryptodev_trace_configure(dev_id, config);
>  	return (*dev->dev_ops->dev_configure)(dev, config); @@ -1485,6
> +1491,7 @@ rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t
> queue_pair_id,
>  			socket_id);
>  }
> 
> +#ifdef RTE_CRYPTO_CALLBACKS
>  struct rte_cryptodev_cb *
>  rte_cryptodev_add_enq_callback(uint8_t dev_id,
>  			       uint16_t qp_id,
> @@ -1763,6 +1770,7 @@ rte_cryptodev_remove_deq_callback(uint8_t
> dev_id,
>  	rte_spinlock_unlock(&rte_cryptodev_callback_lock);
>  	return ret;
>  }
> +#endif /* RTE_CRYPTO_CALLBACKS */
> 
>  int
>  rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats) diff
> --git a/lib/cryptodev/rte_cryptodev.h b/lib/cryptodev/rte_cryptodev.h index
> 00ba6a234a..b811b458d5 100644
> --- a/lib/cryptodev/rte_cryptodev.h
> +++ b/lib/cryptodev/rte_cryptodev.h
> @@ -1910,7 +1910,7 @@ rte_cryptodev_dequeue_burst(uint8_t dev_id,
> uint16_t qp_id,
>  	nb_ops = fp_ops->dequeue_burst(qp, ops, nb_ops);
> 
>  #ifdef RTE_CRYPTO_CALLBACKS
> -	if (unlikely(fp_ops->qp.deq_cb != NULL)) {
> +	if (unlikely(fp_ops->qp.deq_cb[qp_id].next != NULL)) {
>  		struct rte_cryptodev_cb_rcu *list;
>  		struct rte_cryptodev_cb *cb;
> 
> @@ -1977,7 +1977,7 @@ rte_cryptodev_enqueue_burst(uint8_t dev_id,
> uint16_t qp_id,
>  	fp_ops = &rte_crypto_fp_ops[dev_id];
>  	qp = fp_ops->qp.data[qp_id];
>  #ifdef RTE_CRYPTO_CALLBACKS
> -	if (unlikely(fp_ops->qp.enq_cb != NULL)) {
> +	if (unlikely(fp_ops->qp.enq_cb[qp_id].next != NULL)) {
>  		struct rte_cryptodev_cb_rcu *list;
>  		struct rte_cryptodev_cb *cb;
> 
> --
> 2.23.0