[dpdk-dev] [PATCH v1 10/13] baseband/fpga_5gnr_fec: add configure function

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

Add configure function to configure the PF from within
the bbdev-test itself without external application
configuration the device.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
---
 app/test-bbdev/test_bbdev_perf.c                   |  57 ++++++
 doc/guides/bbdevs/fpga_5gnr_fec.rst                | 123 +++++++++++++
 drivers/baseband/fpga_5gnr_fec/Makefile            |   3 +
 drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h     |  74 ++++++++
 drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c | 196 +++++++++++++++++++++
 .../rte_pmd_bbdev_fpga_5gnr_fec_version.map        |   7 +
 6 files changed, 460 insertions(+)
 create mode 100644 drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h

diff --git a/app/test-bbdev/test_bbdev_perf.c b/app/test-bbdev/test_bbdev_perf.c
index d8db58e..19ad65c 100644
--- a/app/test-bbdev/test_bbdev_perf.c
+++ b/app/test-bbdev/test_bbdev_perf.c
@@ -42,6 +42,19 @@
 #define FLR_TIMEOUT 610
 #endif
 
+#ifdef RTE_LIBRTE_PMD_BBDEV_FPGA_5GNR_FEC
+#include <fpga_5gnr_fec.h>
+#define FPGA_5GNR_PF_DRIVER_NAME ("intel_fpga_5gnr_fec_pf")
+#define FPGA_5GNR_VF_DRIVER_NAME ("intel_fpga_5gnr_fec_vf")
+#define VF_UL_5G_QUEUE_VALUE 4
+#define VF_DL_5G_QUEUE_VALUE 4
+#define UL_5G_BANDWIDTH 3
+#define DL_5G_BANDWIDTH 3
+#define UL_5G_LOAD_BALANCE 128
+#define DL_5G_LOAD_BALANCE 128
+#define FLR_5G_TIMEOUT 610
+#endif
+
 #define OPS_CACHE_SIZE 256U
 #define OPS_POOL_SIZE_MIN 511U /* 0.5K per queue */
 
@@ -563,6 +576,50 @@ typedef int (test_case_function)(struct active_device *ad,
 				info->dev_name);
 	}
 #endif
+#ifdef RTE_LIBRTE_PMD_BBDEV_FPGA_5GNR_FEC
+	if ((get_init_device() == true) &&
+		(!strcmp(info->drv.driver_name, FPGA_5GNR_PF_DRIVER_NAME))) {
+		struct fpga_5gnr_fec_conf conf;
+		unsigned int i;
+
+		printf("Configure FPGA 5GNR FEC Driver %s with default values\n",
+				info->drv.driver_name);
+
+		/* clear default configuration before initialization */
+		memset(&conf, 0, sizeof(struct fpga_5gnr_fec_conf));
+
+		/* Set PF mode :
+		 * true if PF is used for data plane
+		 * false for VFs
+		 */
+		conf.pf_mode_en = true;
+
+		for (i = 0; i < FPGA_5GNR_FEC_NUM_VFS; ++i) {
+			/* Number of UL queues per VF (fpga supports 8 VFs) */
+			conf.vf_ul_queues_number[i] = VF_UL_5G_QUEUE_VALUE;
+			/* Number of DL queues per VF (fpga supports 8 VFs) */
+			conf.vf_dl_queues_number[i] = VF_DL_5G_QUEUE_VALUE;
+		}
+
+		/* UL bandwidth. Needed for schedule algorithm */
+		conf.ul_bandwidth = UL_5G_BANDWIDTH;
+		/* DL bandwidth */
+		conf.dl_bandwidth = DL_5G_BANDWIDTH;
+
+		/* UL & DL load Balance Factor to 64 */
+		conf.ul_load_balance = UL_5G_LOAD_BALANCE;
+		conf.dl_load_balance = DL_5G_LOAD_BALANCE;
+
+		/**< FLR timeout value */
+		conf.flr_time_out = FLR_5G_TIMEOUT;
+
+		/* setup FPGA PF with configuration information */
+		ret = fpga_5gnr_fec_configure(info->dev_name, &conf);
+		TEST_ASSERT_SUCCESS(ret,
+				"Failed to configure 5G FPGA PF for bbdev %s",
+				info->dev_name);
+	}
+#endif
 	nb_queues = RTE_MIN(rte_lcore_count(), info->drv.max_num_queues);
 	nb_queues = RTE_MIN(nb_queues, (unsigned int) MAX_QUEUES);
 
diff --git a/doc/guides/bbdevs/fpga_5gnr_fec.rst b/doc/guides/bbdevs/fpga_5gnr_fec.rst
index 7eab7a4..5641b1a 100644
--- a/doc/guides/bbdevs/fpga_5gnr_fec.rst
+++ b/doc/guides/bbdevs/fpga_5gnr_fec.rst
@@ -166,6 +166,129 @@ name is different:
   echo <num-of-vfs> > /sys/bus/pci/devices/0000\:<b>\:<d>.<f>/sriov_numvfs
 
 
+Configure the VFs through PF
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The PCI virtual functions must be configured before working or getting assigned
+to VMs/Containers. The configuration involves allocating the number of hardware
+queues, priorities, load balance, bandwidth and other settings necessary for the
+device to perform FEC functions.
+
+This configuration needs to be executed at least once after reboot or PCI FLR and can
+be achieved by using the function ``fpga_5gnr_fec_configure()``, which sets up the
+parameters defined in ``fpga_5gnr_fec_conf`` structure:
+
+.. code-block:: c
+
+  struct fpga_5gnr_fec_conf {
+      bool pf_mode_en;
+      uint8_t vf_ul_queues_number[FPGA_5GNR_FEC_NUM_VFS];
+      uint8_t vf_dl_queues_number[FPGA_5GNR_FEC_NUM_VFS];
+      uint8_t ul_bandwidth;
+      uint8_t dl_bandwidth;
+      uint8_t ul_load_balance;
+      uint8_t dl_load_balance;
+      uint16_t flr_time_out;
+  };
+
+- ``pf_mode_en``: identifies whether only PF is to be used, or the VFs. PF and
+  VFs are mutually exclusive and cannot run simultaneously.
+  Set to 1 for PF mode enabled.
+  If PF mode is enabled all queues available in the device are assigned
+  exclusively to PF and 0 queues given to VFs.
+
+- ``vf_*l_queues_number``: defines the hardware queue mapping for every VF.
+
+- ``*l_bandwidth``: in case of congestion on PCIe interface. The device
+  allocates different bandwidth to UL and DL. The weight is configured by this
+  setting. The unit of weight is 3 code blocks. For example, if the code block
+  cbps (code block per second) ratio between UL and DL is 12:1, then the
+  configuration value should be set to 36:3. The schedule algorithm is based
+  on code block regardless the length of each block.
+
+- ``*l_load_balance``: hardware queues are load-balanced in a round-robin
+  fashion. Queues get filled first-in first-out until they reach a pre-defined
+  watermark level, if exceeded, they won't get assigned new code blocks..
+  This watermark is defined by this setting.
+
+  If all hardware queues exceeds the watermark, no code blocks will be
+  streamed in from UL/DL code block FIFO.
+
+- ``flr_time_out``: specifies how many 16.384us to be FLR time out. The
+  time_out = flr_time_out x 16.384us. For instance, if you want to set 10ms for
+  the FLR time out then set this setting to 0x262=610.
+
+
+An example configuration code calling the function ``fpga_5gnr_fec_configure()`` is shown
+below:
+
+.. code-block:: c
+
+  struct fpga_5gnr_fec_conf conf;
+  unsigned int i;
+
+  memset(&conf, 0, sizeof(struct fpga_5gnr_fec_conf));
+  conf.pf_mode_en = 1;
+
+  for (i = 0; i < FPGA_5GNR_FEC_NUM_VFS; ++i) {
+      conf.vf_ul_queues_number[i] = 4;
+      conf.vf_dl_queues_number[i] = 4;
+  }
+  conf.ul_bandwidth = 12;
+  conf.dl_bandwidth = 5;
+  conf.dl_load_balance = 64;
+  conf.ul_load_balance = 64;
+
+  /* setup FPGA PF */
+  ret = fpga_5gnr_fec_configure(info->dev_name, &conf);
+  TEST_ASSERT_SUCCESS(ret,
+      "Failed to configure 4G FPGA PF for bbdev %s",
+      info->dev_name);
+
+
+Test Application
+----------------
+
+BBDEV provides a test application, ``test-bbdev.py`` and range of test data for testing
+the functionality of FPGA 5GNR FEC encode and decode, depending on the device's
+capabilities. The test application is located under app->test-bbdev folder and has the
+following options:
+
+.. code-block:: console
+
+  "-p", "--testapp-path": specifies path to the bbdev test app.
+  "-e", "--eal-params"	: EAL arguments which are passed to the test app.
+  "-t", "--timeout"	: Timeout in seconds (default=300).
+  "-c", "--test-cases"	: Defines test cases to run. Run all if not specified.
+  "-v", "--test-vector"	: Test vector path (default=dpdk_path+/app/test-bbdev/test_vectors/bbdev_null.data).
+  "-n", "--num-ops"	: Number of operations to process on device (default=32).
+  "-b", "--burst-size"	: Operations enqueue/dequeue burst size (default=32).
+  "-l", "--num-lcores"	: Number of lcores to run (default=16).
+  "-i", "--init-device" : Initialise PF device with default values.
+
+
+To execute the test application tool using simple decode or encode data,
+type one of the following:
+
+.. code-block:: console
+
+  ./test-bbdev.py -c validation -n 64 -b 1 -v ./ldpc_dec_default.data
+  ./test-bbdev.py -c validation -n 64 -b 1 -v ./ldpc_enc_default.data
+
+
+The test application ``test-bbdev.py``, supports the ability to configure the PF device with
+a default set of values, if the "-i" or "- -init-device" option is included. The default values
+are defined in test_bbdev_perf.c as:
+
+- VF_UL_QUEUE_VALUE 4
+- VF_DL_QUEUE_VALUE 4
+- UL_BANDWIDTH 3
+- DL_BANDWIDTH 3
+- UL_LOAD_BALANCE 128
+- DL_LOAD_BALANCE 128
+- FLR_TIMEOUT 610
+
+
 Test Vectors
 ~~~~~~~~~~~~
 
diff --git a/drivers/baseband/fpga_5gnr_fec/Makefile b/drivers/baseband/fpga_5gnr_fec/Makefile
index 3f5c511..b68a79f 100644
--- a/drivers/baseband/fpga_5gnr_fec/Makefile
+++ b/drivers/baseband/fpga_5gnr_fec/Makefile
@@ -23,4 +23,7 @@ LIBABIVER := 1
 # library source files
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_BBDEV_FPGA_5GNR_FEC) += rte_fpga_5gnr_fec.c
 
+# export include files
+SYMLINK-$(CONFIG_RTE_LIBRTE_PMD_BBDEV_FPGA_5GNR_FEC)-include += fpga_5gnr_fec.h
+
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h b/drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h
new file mode 100644
index 0000000..7eebc7d
--- /dev/null
+++ b/drivers/baseband/fpga_5gnr_fec/fpga_5gnr_fec.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Intel Corporation
+ */
+
+#ifndef _FPGA_5GNR_FEC_H_
+#define _FPGA_5GNR_FEC_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/**
+ * @file fpga_5gnr_fec.h
+ *
+ * Interface for Intel(R) FGPA 5GNR FEC device configuration at the host level,
+ * directly accessible by the application.
+ * Configuration related to 5GNR functionality is done through
+ * librte_bbdev library.
+ *
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**< Number of Virtual Functions FGPA 4G FEC supports */
+#define FPGA_5GNR_FEC_NUM_VFS 8
+
+/**
+ * Structure to pass FPGA 4G FEC configuration.
+ */
+struct fpga_5gnr_fec_conf {
+	/**< 1 if PF is used for dataplane, 0 for VFs */
+	bool pf_mode_en;
+	/**< Number of UL queues per VF */
+	uint8_t vf_ul_queues_number[FPGA_5GNR_FEC_NUM_VFS];
+	/**< Number of DL queues per VF */
+	uint8_t vf_dl_queues_number[FPGA_5GNR_FEC_NUM_VFS];
+	/**< UL bandwidth. Needed for schedule algorithm */
+	uint8_t ul_bandwidth;
+	/**< DL bandwidth. Needed for schedule algorithm */
+	uint8_t dl_bandwidth;
+	/**< UL Load Balance */
+	uint8_t ul_load_balance;
+	/**< DL Load Balance */
+	uint8_t dl_load_balance;
+	/**< FLR timeout value */
+	uint16_t flr_time_out;
+};
+
+/**
+ * Configure Intel(R) FPGA 5GNR FEC device
+ *
+ * @param dev_name
+ *   The name of the device. This is the short form of PCI BDF, e.g. 00:01.0.
+ *   It can also be retrieved for a bbdev device from the dev_name field in the
+ *   rte_bbdev_info structure returned by rte_bbdev_info_get().
+ * @param conf
+ *   Configuration to apply to FPGA 4G FEC.
+ *
+ * @return
+ *   Zero on success, negative value on failure.
+ */
+__rte_experimental
+int
+fpga_5gnr_fec_configure(const char *dev_name,
+		const struct fpga_5gnr_fec_conf *conf);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FPGA_5GNR_FEC_H_ */
diff --git a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
index 389257d..2559da5 100644
--- a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
+++ b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
@@ -21,6 +21,7 @@
 #include <rte_bbdev_pmd.h>
 
 #include "rte_fpga_5gnr_fec.h"
+#include "fpga_5gnr_fec.h"
 
 /* 5GNR SW PMD logging ID */
 static int fpga_5gnr_fec_logtype;
@@ -1722,6 +1723,201 @@
 	return 0;
 }
 
+static inline void
+set_default_fpga_conf(struct fpga_5gnr_fec_conf *def_conf)
+{
+	/* clear default configuration before initialization */
+	memset(def_conf, 0, sizeof(struct fpga_5gnr_fec_conf));
+	/* Set pf mode to true */
+	def_conf->pf_mode_en = true;
+
+	/* Set ratio between UL and DL to 1:1 (unit of weight is 3 CBs) */
+	def_conf->ul_bandwidth = 3;
+	def_conf->dl_bandwidth = 3;
+
+	/* Set Load Balance Factor to 64 */
+	def_conf->dl_load_balance = 64;
+	def_conf->ul_load_balance = 64;
+}
+
+/* Initial configuration of FPGA 5GNR FEC device */
+int
+fpga_5gnr_fec_configure(const char *dev_name,
+		const struct fpga_5gnr_fec_conf *conf)
+{
+	uint32_t payload_32, address;
+	uint16_t payload_16;
+	uint8_t payload_8;
+	uint16_t q_id, vf_id, total_q_id, total_ul_q_id, total_dl_q_id;
+	struct rte_bbdev *bbdev = rte_bbdev_get_named_dev(dev_name);
+	struct fpga_5gnr_fec_conf def_conf;
+
+	if (bbdev == NULL) {
+		rte_bbdev_log(ERR,
+				"Invalid dev_name (%s), or device is not yet initialised",
+				dev_name);
+		return -ENODEV;
+	}
+
+	struct fpga_5gnr_fec_device *d = bbdev->data->dev_private;
+
+	if (conf == NULL) {
+		rte_bbdev_log(ERR,
+				"FPGA Configuration was not provided. Default configuration will be loaded.");
+		set_default_fpga_conf(&def_conf);
+		conf = &def_conf;
+	}
+
+	/*
+	 * Configure UL:DL ratio.
+	 * [7:0]: UL weight
+	 * [15:8]: DL weight
+	 */
+	payload_16 = (conf->dl_bandwidth << 8) | conf->ul_bandwidth;
+	address = FPGA_5GNR_FEC_CONFIGURATION;
+	fpga_reg_write_16(d->mmio_base, address, payload_16);
+
+	/* Clear all queues registers */
+	payload_32 = FPGA_INVALID_HW_QUEUE_ID;
+	for (q_id = 0; q_id < FPGA_TOTAL_NUM_QUEUES; ++q_id) {
+		address = (q_id << 2) + FPGA_5GNR_FEC_QUEUE_MAP;
+		fpga_reg_write_32(d->mmio_base, address, payload_32);
+	}
+
+	/*
+	 * If PF mode is enabled allocate all queues for PF only.
+	 *
+	 * For VF mode each VF can have different number of UL and DL queues.
+	 * Total number of queues to configure cannot exceed FPGA
+	 * capabilities - 64 queues - 32 queues for UL and 32 queues for DL.
+	 * Queues mapping is done according to configuration:
+	 *
+	 * UL queues:
+	 * |                Q_ID              | VF_ID |
+	 * |                 0                |   0   |
+	 * |                ...               |   0   |
+	 * | conf->vf_dl_queues_number[0] - 1 |   0   |
+	 * | conf->vf_dl_queues_number[0]     |   1   |
+	 * |                ...               |   1   |
+	 * | conf->vf_dl_queues_number[1] - 1 |   1   |
+	 * |                ...               |  ...  |
+	 * | conf->vf_dl_queues_number[7] - 1 |   7   |
+	 *
+	 * DL queues:
+	 * |                Q_ID              | VF_ID |
+	 * |                 32               |   0   |
+	 * |                ...               |   0   |
+	 * | conf->vf_ul_queues_number[0] - 1 |   0   |
+	 * | conf->vf_ul_queues_number[0]     |   1   |
+	 * |                ...               |   1   |
+	 * | conf->vf_ul_queues_number[1] - 1 |   1   |
+	 * |                ...               |  ...  |
+	 * | conf->vf_ul_queues_number[7] - 1 |   7   |
+	 *
+	 * Example of configuration:
+	 * conf->vf_ul_queues_number[0] = 4;  -> 4 UL queues for VF0
+	 * conf->vf_dl_queues_number[0] = 4;  -> 4 DL queues for VF0
+	 * conf->vf_ul_queues_number[1] = 2;  -> 2 UL queues for VF1
+	 * conf->vf_dl_queues_number[1] = 2;  -> 2 DL queues for VF1
+	 *
+	 * UL:
+	 * | Q_ID | VF_ID |
+	 * |   0  |   0   |
+	 * |   1  |   0   |
+	 * |   2  |   0   |
+	 * |   3  |   0   |
+	 * |   4  |   1   |
+	 * |   5  |   1   |
+	 *
+	 * DL:
+	 * | Q_ID | VF_ID |
+	 * |  32  |   0   |
+	 * |  33  |   0   |
+	 * |  34  |   0   |
+	 * |  35  |   0   |
+	 * |  36  |   1   |
+	 * |  37  |   1   |
+	 */
+	if (conf->pf_mode_en) {
+		payload_32 = 0x1;
+		for (q_id = 0; q_id < FPGA_TOTAL_NUM_QUEUES; ++q_id) {
+			address = (q_id << 2) + FPGA_5GNR_FEC_QUEUE_MAP;
+			fpga_reg_write_32(d->mmio_base, address, payload_32);
+		}
+	} else {
+		/* Calculate total number of UL and DL queues to configure */
+		total_ul_q_id = total_dl_q_id = 0;
+		for (vf_id = 0; vf_id < FPGA_5GNR_FEC_NUM_VFS; ++vf_id) {
+			total_ul_q_id += conf->vf_ul_queues_number[vf_id];
+			total_dl_q_id += conf->vf_dl_queues_number[vf_id];
+		}
+		total_q_id = total_dl_q_id + total_ul_q_id;
+		/*
+		 * Check if total number of queues to configure does not exceed
+		 * FPGA capabilities (64 queues - 32 UL and 32 DL queues)
+		 */
+		if ((total_ul_q_id > FPGA_NUM_UL_QUEUES) ||
+			(total_dl_q_id > FPGA_NUM_DL_QUEUES) ||
+			(total_q_id > FPGA_TOTAL_NUM_QUEUES)) {
+			rte_bbdev_log(ERR,
+					"FPGA Configuration failed. Too many queues to configure: UL_Q %u, DL_Q %u, FPGA_Q %u",
+					total_ul_q_id, total_dl_q_id,
+					FPGA_TOTAL_NUM_QUEUES);
+			return -EINVAL;
+		}
+		total_ul_q_id = 0;
+		for (vf_id = 0; vf_id < FPGA_5GNR_FEC_NUM_VFS; ++vf_id) {
+			for (q_id = 0; q_id < conf->vf_ul_queues_number[vf_id];
+					++q_id, ++total_ul_q_id) {
+				address = (total_ul_q_id << 2) +
+						FPGA_5GNR_FEC_QUEUE_MAP;
+				payload_32 = ((0x80 + vf_id) << 16) | 0x1;
+				fpga_reg_write_32(d->mmio_base, address,
+						payload_32);
+			}
+		}
+		total_dl_q_id = 0;
+		for (vf_id = 0; vf_id < FPGA_5GNR_FEC_NUM_VFS; ++vf_id) {
+			for (q_id = 0; q_id < conf->vf_dl_queues_number[vf_id];
+					++q_id, ++total_dl_q_id) {
+				address = ((total_dl_q_id + FPGA_NUM_UL_QUEUES)
+						<< 2) + FPGA_5GNR_FEC_QUEUE_MAP;
+				payload_32 = ((0x80 + vf_id) << 16) | 0x1;
+				fpga_reg_write_32(d->mmio_base, address,
+						payload_32);
+			}
+		}
+	}
+
+	/* Setting Load Balance Factor */
+	payload_16 = (conf->dl_load_balance << 8) | (conf->ul_load_balance);
+	address = FPGA_5GNR_FEC_LOAD_BALANCE_FACTOR;
+	fpga_reg_write_16(d->mmio_base, address, payload_16);
+
+	/* Setting length of ring descriptor entry */
+	payload_16 = FPGA_RING_DESC_ENTRY_LENGTH;
+	address = FPGA_5GNR_FEC_RING_DESC_LEN;
+	fpga_reg_write_16(d->mmio_base, address, payload_16);
+
+	/* Setting FLR timeout value */
+	payload_16 = conf->flr_time_out;
+	address = FPGA_5GNR_FEC_FLR_TIME_OUT;
+	fpga_reg_write_16(d->mmio_base, address, payload_16);
+
+	/* Queue PF/VF mapping table is ready */
+	payload_8 = 0x1;
+	address = FPGA_5GNR_FEC_QUEUE_PF_VF_MAP_DONE;
+	fpga_reg_write_8(d->mmio_base, address, payload_8);
+
+	rte_bbdev_log_debug("PF FPGA 5GNR FEC configuration complete for %s",
+			dev_name);
+
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+	print_static_reg_debug_info(d->mmio_base);
+#endif
+	return 0;
+}
+
 /* FPGA 5GNR FEC PCI PF address map */
 static struct rte_pci_id pci_id_fpga_5gnr_fec_pf_map[] = {
 	{
diff --git a/drivers/baseband/fpga_5gnr_fec/rte_pmd_bbdev_fpga_5gnr_fec_version.map b/drivers/baseband/fpga_5gnr_fec/rte_pmd_bbdev_fpga_5gnr_fec_version.map
index f9f17e4..b0fb971 100644
--- a/drivers/baseband/fpga_5gnr_fec/rte_pmd_bbdev_fpga_5gnr_fec_version.map
+++ b/drivers/baseband/fpga_5gnr_fec/rte_pmd_bbdev_fpga_5gnr_fec_version.map
@@ -1,3 +1,10 @@
 DPDK_20.0 {
 	local: *;
 };
+
+EXPERIMENTAL {
+	global:
+
+	fpga_5gnr_fec_configure;
+
+};
-- 
1.8.3.1