Hi Hernant,
Gentle reminder in case you can find the time. Could please have a look this
patch for bbdev api extension. This is targeting 22.11.
New operation type for FFT processing (On top of 4 existing operations types).
There is no impact to the la12xx PMD but would be good to get review/feedback.
This can be used for vanilla FFT and/or chained FFT/iFFT + point-wise
multiplication making it applicable for SRS processing.
Thanks,
Nic
> -----Original Message-----
> From: Chautru, Nicolas <nicolas.chau...@intel.com>
> Sent: Thursday, March 10, 2022 3:49 PM
> To: dev@dpdk.org; gak...@marvell.com; t...@redhat.com
> Cc: tho...@monjalon.net; hemant.agra...@nxp.com; Zhang, Mingshan
> <mingshan.zh...@intel.com>; david.march...@redhat.com; Chautru,
> Nicolas <nicolas.chau...@intel.com>
> Subject: [PATCH v1] bbdev: add new operation for FFT processing
>
> Extension of bbdev operation to support FFT based operations.
>
> Signed-off-by: Nicolas Chautru <nicolas.chau...@intel.com>
> ---
> doc/guides/prog_guide/bbdev.rst | 130
> +++++++++++++++++++++++++++++++++++
> lib/bbdev/rte_bbdev.c | 8 +++
> lib/bbdev/rte_bbdev.h | 76 ++++++++++++++++++++
> lib/bbdev/rte_bbdev_op.h | 149
> ++++++++++++++++++++++++++++++++++++++++
> lib/bbdev/version.map | 10 +++
> 5 files changed, 373 insertions(+)
>
> diff --git a/doc/guides/prog_guide/bbdev.rst
> b/doc/guides/prog_guide/bbdev.rst index 70fa01a..2791286 100644
> --- a/doc/guides/prog_guide/bbdev.rst
> +++ b/doc/guides/prog_guide/bbdev.rst
> @@ -1118,6 +1118,136 @@ Figure :numref:`figure_turbo_tb_decode` above
> showing the Turbo decoding of CBs using BBDEV interface in TB-mode is also
> valid for LDPC decode.
>
> +BBDEV FFT Operation
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> +
> +This operation allows to run a combination of DFT and/or IDFT and/or time-
> domain windowing.
> +These can be used in a modular fashion (using bypass modes) or as a
> +processing pipeline which can be used for FFT-based baseband signal
> processing.
> +In more details it allows :
> +- to process the data first through an IDFT of adjustable size and
> +padding;
> +- to perform the windowing as a programmable cyclic shift offset of the
> +data followed by a pointwise multiplication by a time domain window;
> +- to process the related data through a DFT of adjustable size and
> +depadding for each such cyclic shift output.
> +
> +A flexible number of Rx antennas are being processed in parallel with the
> same configuration.
> +The API allows more generally for flexibility in what the PMD may
> +support (cabability flags) and flexibility to adjust some of the parameters
> of
> the processing.
> +
> +The operation/capability flags that can be set for each FFT operation are
> given below.
> +
> + **NOTE:** The actual operation flags that may be used with a specific
> + BBDEV PMD are dependent on the driver capabilities as reported via
> + ``rte_bbdev_info_get()``, and may be a subset of those below.
> +
> ++--------------------------------------------------------------------+
> +|Description of FFT capability flags |
> ++==============================================================
> ======+
> +|RTE_BBDEV_FFT_WINDOWING |
> +| Set to enable/support windowing in time domain |
> ++--------------------------------------------------------------------+
> +|RTE_BBDEV_FFT_CS_ADJUSTMENT |
> +| Set to enable/support the cyclic shift time offset adjustment |
> ++--------------------------------------------------------------------+
> +|RTE_BBDEV_FFT_DFT_BYPASS |
> +| Set to bypass the DFT and use directly the IDFT as an option |
> ++--------------------------------------------------------------------+
> +|RTE_BBDEV_FFT_IDFT_BYPASS |
> +| Set to bypass the IDFT and use directly the DFT as an option |
> ++--------------------------------------------------------------------+
> +|RTE_BBDEV_FFT_WINDOWING_BYPASS |
> +| Set to bypass the time domain windowing as an option |
> ++--------------------------------------------------------------------+
> +|RTE_BBDEV_FFT_POWER_MEAS |
> +| Set to provide an optional power measument of the DFT output |
> ++--------------------------------------------------------------------+
> +|RTE_BBDEV_FFT_FP16_INPUT |
> +| Set if the input data shall use FP16 format instead of INT16 |
> ++--------------------------------------------------------------------+
> +|RTE_BBDEV_FFT_FP16_OUTPUT |
> +| Set if the output data shall use FP16 format instead of INT16 |
> ++--------------------------------------------------------------------+
> +
> +The structure passed for each FFT operation is given below, with the
> +operation flags forming a bitmask in the ``op_flags`` field.
> +
> +.. code-block:: c
> +
> + struct rte_bbdev_op_fft {
> + struct rte_bbdev_op_data base_input;
> + struct rte_bbdev_op_data base_output;
> + struct rte_bbdev_op_data power_meas_output;
> + uint32_t op_flags;
> + uint16_t input_sequence_size;
> + uint16_t input_leading_padding;
> + uint16_t output_sequence_size;
> + uint16_t output_leading_depadding;
> + uint8_t window_index[RTE_BBDEV_MAX_CS_2];
> + uint16_t cs_bitmap;
> + uint8_t num_antennas_log2;
> + uint8_t idft_log2;
> + uint8_t dft_log2;
> + int8_t cs_time_adjustment;
> + int8_t idft_shift;
> + int8_t dft_shift;
> + uint16_t ncs_reciprocal;
> + uint16_t power_shift;
> + uint16_t fp16_exp_adjust;
> + };
> +
> +The FFT parameters are set out in the table below.
> +
> ++----------------------+--------------------------------------------------------------+
> +|Parameter |Description
> |
> ++======================+=======================================
> ========
> ++===============+
> +|base_input |input data
> |
> ++----------------------+--------------------------------------------------------------+
> +|base_output |output data
> |
> ++----------------------+--------------------------------------------------------------+
> +|power_meas_output |optional output data with power measurement
> on DFT output | |
> ++----------------------+--------------------------------------------------------------+
> +|op_flags |bitmask of all active operation capabilities
> |
> ++----------------------+--------------------------------------------------------------+
> +|input_sequence_size |size of the input sequence in 32-bits points per
> antenna |
> ++----------------------+--------------------------------------------------------------+
> +|input_leading_padding |number of points padded at the start of input
> data |
> ++----------------------+--------------------------------------------------------------+
> +|output_sequence_size |size of the output sequence per antenna and
> cyclic shift |
> ++----------------------+--------------------------------------------------------------+
> +|output_depadding |number of points depadded at the start of output
> data |
> ++----------------------+--------------------------------------------------------------+
> +|window_index |optional windowing profile index used for each cyclic
> shift |
> ++----------------------+--------------------------------------------------------------+
> +|cs_bitmap |bitmap of the cyclic shift output requested (LSB for
> index 0) |
> ++----------------------+--------------------------------------------------------------+
> +|num_antennas_log2 |number of antennas as a log2 (10 maps to 1024...)
> |
> ++----------------------+--------------------------------------------------------------+
> +|idft_log2 |iDFT size as a log2
> |
> ++----------------------+--------------------------------------------------------------+
> +|dft_log2 |DFT size as a log2
> |
> ++----------------------+--------------------------------------------------------------+
> +|cs_time_adjustment |adjustment of time position of all the cyclic shift
> output |
> ++----------------------+--------------------------------------------------------------+
> +|idft_shift |shift down of signal level post iDFT
> |
> ++----------------------+--------------------------------------------------------------+
> +|dft_shift |shift down of signal level post DFT
> |
> ++----------------------+--------------------------------------------------------------+
> +|ncs_reciprocal |inverse of max number of CS normalized to 15b (ie.
> 231 for 12)|
> ++----------------------+--------------------------------------------------------------+
> +|power_shift |shift down of level of power measurement when
> enabled |
> ++----------------------+--------------------------------------------------------------+
> +|fp16_exp_adjust |value added to FP16 exponent at conversion from
> INT16 |
> ++----------------------+--------------------------------------------------------------+
> +
> +The mbuf input ``base_input`` is mandatory for all BBDEV PMDs and is
> +the incoming data for the processing. Its size may not fit into an
> +actual mbuf, but the stucture is used to pass iova address.
> +The mbuf output ``output`` is mandatory and is output of the FFT processing
> chain.
> +Each point is a complex number of 32bits : either as 2 INT16 or as 2
> +FP16 based when the option supported.
> +The data layout is based on contiguous concatenation of output data
> +first by cyclic shift then by antenna.
>
> Sample code
> -----------
> diff --git a/lib/bbdev/rte_bbdev.c b/lib/bbdev/rte_bbdev.c index
> aaee7b7..a72ecba 100644
> --- a/lib/bbdev/rte_bbdev.c
> +++ b/lib/bbdev/rte_bbdev.c
> @@ -850,6 +850,9 @@ struct rte_bbdev *
> case RTE_BBDEV_OP_LDPC_ENC:
> result = sizeof(struct rte_bbdev_enc_op);
> break;
> + case RTE_BBDEV_OP_FFT:
> + result = sizeof(struct rte_bbdev_fft_op);
> + break;
> default:
> break;
> }
> @@ -873,6 +876,10 @@ struct rte_bbdev *
> struct rte_bbdev_enc_op *op = element;
> memset(op, 0, mempool->elt_size);
> op->mempool = mempool;
> + } else if (type == RTE_BBDEV_OP_FFT) {
> + struct rte_bbdev_fft_op *op = element;
> + memset(op, 0, mempool->elt_size);
> + op->mempool = mempool;
> }
> }
>
> @@ -1123,6 +1130,7 @@ struct rte_mempool *
> "RTE_BBDEV_OP_TURBO_ENC",
> "RTE_BBDEV_OP_LDPC_DEC",
> "RTE_BBDEV_OP_LDPC_ENC",
> + "RTE_BBDEV_OP_FFT",
> };
>
> if (op_type < RTE_BBDEV_OP_TYPE_COUNT) diff --git
> a/lib/bbdev/rte_bbdev.h b/lib/bbdev/rte_bbdev.h index b88c881..e9ca673
> 100644
> --- a/lib/bbdev/rte_bbdev.h
> +++ b/lib/bbdev/rte_bbdev.h
> @@ -380,6 +380,12 @@ typedef uint16_t
> (*rte_bbdev_enqueue_dec_ops_t)(
> struct rte_bbdev_dec_op **ops,
> uint16_t num);
>
> +/** @internal Enqueue fft operations for processing on queue of a
> +device. */ typedef uint16_t (*rte_bbdev_enqueue_fft_ops_t)(
> + struct rte_bbdev_queue_data *q_data,
> + struct rte_bbdev_fft_op **ops,
> + uint16_t num);
> +
> /** @internal Dequeue encode operations from a queue of a device. */
> typedef uint16_t (*rte_bbdev_dequeue_enc_ops_t)(
> struct rte_bbdev_queue_data *q_data,
> @@ -390,6 +396,11 @@ typedef uint16_t
> (*rte_bbdev_dequeue_dec_ops_t)(
> struct rte_bbdev_queue_data *q_data,
> struct rte_bbdev_dec_op **ops, uint16_t num);
>
> +/** @internal Dequeue fft operations from a queue of a device. */
> +typedef uint16_t (*rte_bbdev_dequeue_fft_ops_t)(
> + struct rte_bbdev_queue_data *q_data,
> + struct rte_bbdev_fft_op **ops, uint16_t num);
> +
> #define RTE_BBDEV_NAME_MAX_LEN 64 /**< Max length of device name
> */
>
> /**
> @@ -438,6 +449,10 @@ struct __rte_cache_aligned rte_bbdev {
> rte_bbdev_dequeue_enc_ops_t dequeue_ldpc_enc_ops;
> /** Dequeue decode function */
> rte_bbdev_dequeue_dec_ops_t dequeue_ldpc_dec_ops;
> + /** Enqueue FFT function */
> + rte_bbdev_enqueue_fft_ops_t enqueue_fft_ops;
> + /** Dequeue FFT function */
> + rte_bbdev_dequeue_fft_ops_t dequeue_fft_ops;
> const struct rte_bbdev_ops *dev_ops; /**< Functions exported by
> PMD */
> struct rte_bbdev_data *data; /**< Pointer to device data */
> enum rte_bbdev_state state; /**< If device is currently used or not
> */ @@ -570,6 +585,36 @@ struct __rte_cache_aligned rte_bbdev {
> return dev->enqueue_ldpc_dec_ops(q_data, ops, num_ops); }
>
> +/**
> + * Enqueue a burst of fft operations to a queue of the device.
> + * This functions only enqueues as many operations as currently
> +possible and
> + * does not block until @p num_ops entries in the queue are available.
> + * This function does not provide any error notification to avoid the
> + * corresponding overhead.
> + *
> + * @param dev_id
> + * The identifier of the device.
> + * @param queue_id
> + * The index of the queue.
> + * @param ops
> + * Pointer array containing operations to be enqueued Must have at least
> + * @p num_ops entries
> + * @param num_ops
> + * The maximum number of operations to enqueue.
> + *
> + * @return
> + * The number of operations actually enqueued (this is the number of
> processed
> + * entries in the @p ops array).
> + */
> +__rte_experimental
> +static inline uint16_t
> +rte_bbdev_enqueue_fft_ops(uint16_t dev_id, uint16_t queue_id,
> + struct rte_bbdev_fft_op **ops, uint16_t num_ops) {
> + struct rte_bbdev *dev = &rte_bbdev_devices[dev_id];
> + struct rte_bbdev_queue_data *q_data = &dev->data-
> >queues[queue_id];
> + return dev->enqueue_fft_ops(q_data, ops, num_ops); }
>
> /**
> * Dequeue a burst of processed encode operations from a queue of the
> device.
> @@ -695,6 +740,37 @@ struct __rte_cache_aligned rte_bbdev {
> return dev->dequeue_ldpc_dec_ops(q_data, ops, num_ops); }
>
> +/**
> + * Dequeue a burst of fft operations from a queue of the device.
> + * This functions returns only the current contents of the queue, and
> +does not
> + * block until @ num_ops is available.
> + * This function does not provide any error notification to avoid the
> + * corresponding overhead.
> + *
> + * @param dev_id
> + * The identifier of the device.
> + * @param queue_id
> + * The index of the queue.
> + * @param ops
> + * Pointer array where operations will be dequeued to. Must have at least
> + * @p num_ops entries
> + * @param num_ops
> + * The maximum number of operations to dequeue.
> + *
> + * @return
> + * The number of operations actually dequeued (this is the number of
> entries
> + * copied into the @p ops array).
> + */
> +__rte_experimental
> +static inline uint16_t
> +rte_bbdev_dequeue_fft_ops(uint16_t dev_id, uint16_t queue_id,
> + struct rte_bbdev_fft_op **ops, uint16_t num_ops) {
> + struct rte_bbdev *dev = &rte_bbdev_devices[dev_id];
> + struct rte_bbdev_queue_data *q_data = &dev->data-
> >queues[queue_id];
> + return dev->dequeue_fft_ops(q_data, ops, num_ops); }
> +
> /** Definitions of device event types */ enum rte_bbdev_event_type {
> RTE_BBDEV_EVENT_UNKNOWN, /**< unknown event type */ diff --
> git a/lib/bbdev/rte_bbdev_op.h b/lib/bbdev/rte_bbdev_op.h index
> 6d56133..57e35f4 100644
> --- a/lib/bbdev/rte_bbdev_op.h
> +++ b/lib/bbdev/rte_bbdev_op.h
> @@ -47,6 +47,8 @@
> #define RTE_BBDEV_TURBO_MAX_CODE_BLOCKS (64)
> /* LDPC: Maximum number of Code Blocks in Transport Block.*/ #define
> RTE_BBDEV_LDPC_MAX_CODE_BLOCKS (256)
> +/* 12 CS maximum */
> +#define RTE_BBDEV_MAX_CS_2 (6)
>
> /** Flags for turbo decoder operation and capability structure */ enum
> rte_bbdev_op_td_flag_bitmasks { @@ -211,6 +213,26 @@ enum
> rte_bbdev_op_ldpcenc_flag_bitmasks {
> RTE_BBDEV_LDPC_ENC_CONCATENATION = (1ULL << 7) };
>
> +/** Flags for DFT operation and capability structure */ enum
> +rte_bbdev_op_fft_flag_bitmasks {
> + /** Flexible windowing capability */
> + RTE_BBDEV_FFT_WINDOWING = (1ULL << 0),
> + /** Flexible adjustment of Cyclic Shift time offset */
> + RTE_BBDEV_FFT_CS_ADJUSTMENT = (1ULL << 1),
> + /** Set for bypass the DFT and get directly into iDFT input */
> + RTE_BBDEV_FFT_DFT_BYPASS = (1ULL << 2),
> + /** Set for bypass the IDFT and get directly the DFT output */
> + RTE_BBDEV_FFT_IDFT_BYPASS = (1ULL << 3),
> + /** Set for bypass time domain windowing */
> + RTE_BBDEV_FFT_WINDOWING_BYPASS = (1ULL << 4),
> + /** Set for optional power measurement on DFT output */
> + RTE_BBDEV_FFT_POWER_MEAS = (1ULL << 5),
> + /** Set if the the input data used FP16 format */
> + RTE_BBDEV_FFT_FP16_INPUT = (1ULL << 6),
> + /** Set if the the output data uses FP16 format */
> + RTE_BBDEV_FFT_FP16_OUTPUT = (1ULL << 7) };
> +
> /** Flags for the Code Block/Transport block mode */ enum
> rte_bbdev_op_cb_mode {
> /** One operation is one or fraction of one transport block */ @@ -
> 689,6 +711,55 @@ struct rte_bbdev_op_ldpc_enc {
> };
> };
>
> +/** Operation structure for FFT processing.
> + *
> + * The operation processes the data for multiple antennas in a single
> +call
> + * (.i.e for all the REs belonging to a given SRS sequence for
> +instance)
> + *
> + * The output mbuf data structure is expected to be allocated by the
> + * application with enough room for the output data.
> + */
> +struct rte_bbdev_op_fft {
> + /** Input data starting from first antenna */
> + struct rte_bbdev_op_data base_input;
> + /** Output data starting from first antenna and first cyclic shift */
> + struct rte_bbdev_op_data base_output;
> + /** Optional power measurement output data */
> + struct rte_bbdev_op_data power_meas_output;
> + /** Flags from rte_bbdev_op_fft_flag_bitmasks */
> + uint32_t op_flags;
> + /** Input sequence size in 32-bits points */
> + uint16_t input_sequence_size;
> + /** Padding at the start of the sequence */
> + uint16_t input_leading_padding;
> + /** Output sequence size in 32-bits points */
> + uint16_t output_sequence_size;
> + /** Depadding at the start of the DFT output */
> + uint16_t output_leading_depadding;
> + /** Window index being used for each cyclic shift output */
> + uint8_t window_index[RTE_BBDEV_MAX_CS_2];
> + /** Bitmap of the cyclic shift output requested */
> + uint16_t cs_bitmap;
> + /** Number of antennas as a log2 – 8 to 128 */
> + uint8_t num_antennas_log2;
> + /** iDFT size as a log2 - 32 to 2048 */
> + uint8_t idft_log2;
> + /** DFT size as a log2 - 8 to 2048 */
> + uint8_t dft_log2;
> + /** Adjustment of position of the cyclic shifts - -31 to 31 */
> + int8_t cs_time_adjustment;
> + /** iDFT shift down */
> + int8_t idft_shift;
> + /** DFT shift down */
> + int8_t dft_shift;
> + /** NCS reciprocal factor */
> + uint16_t ncs_reciprocal;
> + /** power measurement out shift down */
> + uint16_t power_shift;
> + /** Adjust the FP6 exponent for INT<->FP16 conversion */
> + uint16_t fp16_exp_adjust;
> +};
> +
> /** List of the capabilities for the Turbo Decoder */ struct
> rte_bbdev_op_cap_turbo_dec {
> /** Flags from rte_bbdev_op_td_flag_bitmasks */ @@ -741,6
> +812,16 @@ struct rte_bbdev_op_cap_ldpc_enc {
> uint16_t num_buffers_dst;
> };
>
> +/** List of the capabilities for the FFT */ struct rte_bbdev_op_cap_fft
> +{
> + /** Flags from rte_bbdev_op_ldpcenc_flag_bitmasks */
> + uint32_t capability_flags;
> + /** Num input code block buffers */
> + uint16_t num_buffers_src;
> + /** Num output code block buffers */
> + uint16_t num_buffers_dst;
> +};
> +
> /** Different operation types supported by the device */ enum
> rte_bbdev_op_type {
> RTE_BBDEV_OP_NONE, /**< Dummy operation that does nothing */
> @@ -748,6 +829,7 @@ enum rte_bbdev_op_type {
> RTE_BBDEV_OP_TURBO_ENC, /**< Turbo encode */
> RTE_BBDEV_OP_LDPC_DEC, /**< LDPC decode */
> RTE_BBDEV_OP_LDPC_ENC, /**< LDPC encode */
> + RTE_BBDEV_OP_FFT, /**< FFT */
> RTE_BBDEV_OP_TYPE_COUNT, /**< Count of different op types */
> };
>
> @@ -791,6 +873,18 @@ struct rte_bbdev_dec_op {
> };
> };
>
> +/** Structure specifying a single fft operation */ struct
> +rte_bbdev_fft_op {
> + /** Status of operation that was performed */
> + int status;
> + /** Mempool which op instance is in */
> + struct rte_mempool *mempool;
> + /** Opaque pointer for user data */
> + void *opaque_data;
> + /** Contains turbo decoder specific parameters */
> + struct rte_bbdev_op_fft fft;
> +};
> +
> /** Operation capabilities supported by a device */ struct
> rte_bbdev_op_cap {
> enum rte_bbdev_op_type type; /**< Type of operation */ @@ -
> 799,6 +893,7 @@ struct rte_bbdev_op_cap {
> struct rte_bbdev_op_cap_turbo_enc turbo_enc;
> struct rte_bbdev_op_cap_ldpc_dec ldpc_dec;
> struct rte_bbdev_op_cap_ldpc_enc ldpc_enc;
> + struct rte_bbdev_op_cap_fft fft;
> } cap; /**< Operation-type specific capabilities */ };
>
> @@ -918,6 +1013,42 @@ struct rte_mempool * }
>
> /**
> + * Bulk allocate fft operations from a mempool with parameter defaults
> reset.
> + *
> + * @param mempool
> + * Operation mempool, created by rte_bbdev_op_pool_create().
> + * @param ops
> + * Output array to place allocated operations
> + * @param num_ops
> + * Number of operations to allocate
> + *
> + * @returns
> + * - 0 on success
> + * - EINVAL if invalid mempool is provided
> + */
> +__rte_experimental
> +static inline int
> +rte_bbdev_fft_op_alloc_bulk(struct rte_mempool *mempool,
> + struct rte_bbdev_fft_op **ops, uint16_t num_ops) {
> + struct rte_bbdev_op_pool_private *priv;
> + int ret;
> +
> + /* Check type */
> + priv = (struct rte_bbdev_op_pool_private *)
> + rte_mempool_get_priv(mempool);
> + if (unlikely(priv->type != RTE_BBDEV_OP_FFT))
> + return -EINVAL;
> +
> + /* Get elements */
> + ret = rte_mempool_get_bulk(mempool, (void **)ops, num_ops);
> + if (unlikely(ret < 0))
> + return ret;
> +
> + return 0;
> +}
> +
> +/**
> * Free decode operation structures that were allocated by
> * rte_bbdev_dec_op_alloc_bulk().
> * All structures must belong to the same mempool.
> @@ -951,6 +1082,24 @@ struct rte_mempool *
> rte_mempool_put_bulk(ops[0]->mempool, (void **)ops,
> num_ops); }
>
> +/**
> + * Free encode operation structures that were allocated by
> + * rte_bbdev_fft_op_alloc_bulk().
> + * All structures must belong to the same mempool.
> + *
> + * @param ops
> + * Operation structures
> + * @param num_ops
> + * Number of structures
> + */
> +__rte_experimental
> +static inline void
> +rte_bbdev_fft_op_free_bulk(struct rte_bbdev_fft_op **ops, unsigned int
> +num_ops) {
> + if (num_ops > 0)
> + rte_mempool_put_bulk(ops[0]->mempool, (void **)ops,
> num_ops); }
> +
> #ifdef __cplusplus
> }
> #endif
> diff --git a/lib/bbdev/version.map b/lib/bbdev/version.map index
> cce3f3c..16a16dc 100644
> --- a/lib/bbdev/version.map
> +++ b/lib/bbdev/version.map
> @@ -39,3 +39,13 @@ DPDK_22 {
>
> local: *;
> };
> +
> +EXPERIMENTAL {
> + global:
> +
> + # added in 22.06
> + rte_bbdev_enqueue_fft_ops;
> + rte_bbdev_dequeue_fft_ops;
> + rte_bbdev_fft_op_alloc_bulk;
> + rte_bbdev_fft_op_free_bulk;
> +};
> --
> 1.8.3.1
