[PATCH v1 10/50] net/ntnic: add INFO flow module

[Serhii Iliushyk <sil-plv@napatech.com>]

From: Oleksandr Kolomeiets <okl-plv@napatech.com>

The info module keeps track of the hardcoded parameters of the FPGA
and provides an abstraction that can support if parameter is unsupported
for a given FPGA.

Signed-off-by: Oleksandr Kolomeiets <okl-plv@napatech.com>
---
 drivers/net/ntnic/include/hw_mod_backend.h    |  57 +++
 drivers/net/ntnic/meson.build                 |   3 +
 .../nthw/flow_api/flow_backend/flow_backend.c | 384 ++++++++++++++++++
 .../ntnic/nthw/flow_filter/flow_nthw_info.c   | 341 ++++++++++++++++
 .../ntnic/nthw/flow_filter/flow_nthw_info.h   | 110 +++++
 drivers/net/ntnic/nthw/nthw_drv.h             |   2 +
 drivers/net/ntnic/nthw/nthw_helper.h          |  11 +
 drivers/net/ntnic/ntnic_mod_reg.c             |   8 +
 drivers/net/ntnic/ntnic_mod_reg.h             |   2 +
 drivers/net/ntnic/ntutil/nt_util.h            |   5 +
 10 files changed, 923 insertions(+)
 create mode 100644 drivers/net/ntnic/nthw/flow_api/flow_backend/flow_backend.c
 create mode 100644 drivers/net/ntnic/nthw/flow_filter/flow_nthw_info.c
 create mode 100644 drivers/net/ntnic/nthw/flow_filter/flow_nthw_info.h
 create mode 100644 drivers/net/ntnic/nthw/nthw_helper.h

diff --git a/drivers/net/ntnic/include/hw_mod_backend.h b/drivers/net/ntnic/include/hw_mod_backend.h
index 46054a6a85..11a0d62c41 100644
--- a/drivers/net/ntnic/include/hw_mod_backend.h
+++ b/drivers/net/ntnic/include/hw_mod_backend.h
@@ -6,6 +6,63 @@
 #ifndef _HW_MOD_BACKEND_H_
 #define _HW_MOD_BACKEND_H_
 
+#define MAX_PHYS_ADAPTERS 8
+
+enum debug_mode_e {
+	FLOW_BACKEND_DEBUG_MODE_NONE = 0x0000,
+	FLOW_BACKEND_DEBUG_MODE_WRITE = 0x0001
+};
+
+struct flow_api_backend_ops {
+	int version;
+	int (*set_debug_mode)(void *dev, enum debug_mode_e mode);
+	int (*get_nb_phy_port)(void *dev);
+	int (*get_nb_rx_port)(void *dev);
+	int (*get_ltx_avail)(void *dev);
+	int (*get_nb_cat_funcs)(void *dev);
+	int (*get_nb_categories)(void *dev);
+	int (*get_nb_cat_km_if_cnt)(void *dev);
+	int (*get_nb_cat_km_if_m0)(void *dev);
+	int (*get_nb_cat_km_if_m1)(void *dev);
+
+	int (*get_nb_queues)(void *dev);
+	int (*get_nb_km_flow_types)(void *dev);
+	int (*get_nb_pm_ext)(void *dev);
+	int (*get_nb_len)(void *dev);
+	int (*get_kcc_size)(void *dev);
+	int (*get_kcc_banks)(void *dev);
+	int (*get_nb_km_categories)(void *dev);
+	int (*get_nb_km_cam_banks)(void *dev);
+	int (*get_nb_km_cam_record_words)(void *dev);
+	int (*get_nb_km_cam_records)(void *dev);
+	int (*get_nb_km_tcam_banks)(void *dev);
+	int (*get_nb_km_tcam_bank_width)(void *dev);
+	int (*get_nb_flm_categories)(void *dev);
+	int (*get_nb_flm_size_mb)(void *dev);
+	int (*get_nb_flm_entry_size)(void *dev);
+	int (*get_nb_flm_variant)(void *dev);
+	int (*get_nb_flm_prios)(void *dev);
+	int (*get_nb_flm_pst_profiles)(void *dev);
+	int (*get_nb_flm_scrub_profiles)(void *dev);
+	int (*get_nb_flm_load_aps_max)(void *dev);
+	int (*get_nb_qsl_categories)(void *dev);
+	int (*get_nb_qsl_qst_entries)(void *dev);
+	int (*get_nb_pdb_categories)(void *dev);
+	int (*get_nb_roa_categories)(void *dev);
+	int (*get_nb_tpe_categories)(void *dev);
+	int (*get_nb_tx_cpy_writers)(void *dev);
+	int (*get_nb_tx_cpy_mask_mem)(void *dev);
+	int (*get_nb_tx_rpl_depth)(void *dev);
+	int (*get_nb_tx_rpl_ext_categories)(void *dev);
+	int (*get_nb_tpe_ifr_categories)(void *dev);
+	int (*get_nb_rpp_per_ps)(void *dev);
+	int (*get_nb_hsh_categories)(void *dev);
+	int (*get_nb_hsh_toeplitz)(void *dev);
+
+	int (*alloc_rx_queue)(void *dev, int queue_id);
+	int (*free_rx_queue)(void *dev, int hw_queue);
+};
+
 struct flow_api_backend_s {
 	void *be_dev;
 };
diff --git a/drivers/net/ntnic/meson.build b/drivers/net/ntnic/meson.build
index 00b1ae4c70..b771a600e4 100644
--- a/drivers/net/ntnic/meson.build
+++ b/drivers/net/ntnic/meson.build
@@ -17,6 +17,7 @@ includes = [
         include_directories('nthw'),
         include_directories('nthw/supported'),
         include_directories('nthw/model'),
+        include_directories('nthw/flow_filter'),
         include_directories('nim/'),
 ]
 
@@ -43,7 +44,9 @@ sources = files(
         'nthw/core/nthw_sdc.c',
         'nthw/core/nthw_si5340.c',
         'nthw/flow_api/flow_api.c',
+        'nthw/flow_api/flow_backend/flow_backend.c',
         'nthw/flow_api/flow_filter.c',
+        'nthw/flow_filter/flow_nthw_info.c',
         'nthw/model/nthw_fpga_model.c',
         'nthw/nthw_platform.c',
         'nthw/nthw_rac.c',
diff --git a/drivers/net/ntnic/nthw/flow_api/flow_backend/flow_backend.c b/drivers/net/ntnic/nthw/flow_api/flow_backend/flow_backend.c
new file mode 100644
index 0000000000..f3ad3686d4
--- /dev/null
+++ b/drivers/net/ntnic/nthw/flow_api/flow_backend/flow_backend.c
@@ -0,0 +1,384 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Napatech A/S
+ */
+
+#include <stdint.h>
+
+#include "flow_nthw_info.h"
+#include "ntnic_mod_reg.h"
+#include "nthw_fpga_model.h"
+#include "hw_mod_backend.h"
+
+/*
+ * Binary Flow API backend implementation into ntservice driver
+ *
+ * General note on this backend implementation:
+ * Maybe use shadow class to combine multiple writes. However, this backend is only for dev/testing
+ */
+
+static struct backend_dev_s {
+	uint8_t adapter_no;
+	enum debug_mode_e dmode;
+	struct info_nthw *p_info_nthw;
+} be_devs[MAX_PHYS_ADAPTERS];
+
+const struct flow_api_backend_ops *bin_flow_backend_init(nthw_fpga_t *p_fpga, void **be_dev);
+static void bin_flow_backend_done(void *be_dev);
+
+static int set_debug_mode(void *be_dev, enum debug_mode_e mode)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	be->dmode = mode;
+	return 0;
+}
+
+/*
+ * INFO
+ */
+
+static int get_nb_phy_ports(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_phy_ports(be->p_info_nthw);
+}
+
+static int get_nb_rx_ports(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_rx_ports(be->p_info_nthw);
+}
+
+static int get_ltx_avail(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_ltx_avail(be->p_info_nthw);
+}
+
+static int get_nb_cat_funcs(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_cat_funcs(be->p_info_nthw);
+}
+
+static int get_nb_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_categories(be->p_info_nthw);
+}
+
+static int get_nb_cat_km_if_cnt(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_cat_km_if_cnt(be->p_info_nthw);
+}
+
+static int get_nb_cat_km_if_m0(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_cat_km_if_m0(be->p_info_nthw);
+}
+
+static int get_nb_cat_km_if_m1(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_cat_km_if_m1(be->p_info_nthw);
+}
+
+static int get_nb_queues(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_queues(be->p_info_nthw);
+}
+
+static int get_nb_km_flow_types(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_km_flow_types(be->p_info_nthw);
+}
+
+static int get_nb_pm_ext(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_pm_ext(be->p_info_nthw);
+}
+
+static int get_nb_len(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_len(be->p_info_nthw);
+}
+
+static int get_kcc_size(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_kcc_size(be->p_info_nthw);
+}
+
+static int get_kcc_banks(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_kcc_banks(be->p_info_nthw);
+}
+
+static int get_nb_km_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_km_categories(be->p_info_nthw);
+}
+
+static int get_nb_km_cam_banks(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_km_cam_banks(be->p_info_nthw);
+}
+
+static int get_nb_km_cam_record_words(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_km_cam_record_words(be->p_info_nthw);
+}
+
+static int get_nb_km_cam_records(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_km_cam_records(be->p_info_nthw);
+}
+
+static int get_nb_km_tcam_banks(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_km_tcam_banks(be->p_info_nthw);
+}
+
+static int get_nb_km_tcam_bank_width(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_km_tcam_bank_width(be->p_info_nthw);
+}
+
+static int get_nb_flm_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_flm_categories(be->p_info_nthw);
+}
+
+static int get_nb_flm_size_mb(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_flm_size_mb(be->p_info_nthw);
+}
+
+static int get_nb_flm_entry_size(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_flm_entry_size(be->p_info_nthw);
+}
+
+static int get_nb_flm_variant(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_flm_variant(be->p_info_nthw);
+}
+
+static int get_nb_flm_prios(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_flm_prios(be->p_info_nthw);
+}
+
+static int get_nb_flm_pst_profiles(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_flm_pst_profiles(be->p_info_nthw);
+}
+
+static int get_nb_flm_scrub_profiles(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_flm_scrub_profiles(be->p_info_nthw);
+}
+
+static int get_nb_flm_load_aps_max(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_flm_load_aps_max(be->p_info_nthw);
+}
+
+static int get_nb_qsl_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_qsl_categories(be->p_info_nthw);
+}
+
+static int get_nb_qsl_qst_entries(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_qsl_qst_entries(be->p_info_nthw);
+}
+
+static int get_nb_pdb_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_pdb_categories(be->p_info_nthw);
+}
+
+static int get_nb_roa_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_roa_categories(be->p_info_nthw);
+}
+
+static int get_nb_tpe_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_tpe_categories(be->p_info_nthw);
+}
+
+static int get_nb_tx_cpy_writers(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_tx_cpy_writers(be->p_info_nthw);
+}
+
+static int get_nb_tx_cpy_mask_mem(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_tx_cpy_mask_mem(be->p_info_nthw);
+}
+
+static int get_nb_tx_rpl_depth(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_tx_rpl_depth(be->p_info_nthw);
+}
+
+static int get_nb_tx_rpl_ext_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_tx_rpl_ext_categories(be->p_info_nthw);
+}
+
+static int get_nb_tpe_ifr_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_tpe_ifr_categories(be->p_info_nthw);
+}
+
+static int get_nb_rpp_per_ps(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_rpp_per_ps(be->p_info_nthw);
+}
+
+static int get_nb_hsh_categories(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_hsh_categories(be->p_info_nthw);
+}
+
+static int get_nb_hsh_toeplitz(void *be_dev)
+{
+	struct backend_dev_s *be = (struct backend_dev_s *)be_dev;
+	return info_nthw_get_nb_hsh_toeplitz(be->p_info_nthw);
+}
+
+/*
+ * DBS
+ */
+
+static int alloc_rx_queue(void *be_dev, int queue_id)
+{
+	(void)be_dev;
+	(void)queue_id;
+	NT_LOG(ERR, FILTER, "ERROR alloc Rx queue\n");
+	return -1;
+}
+
+static int free_rx_queue(void *be_dev, int hw_queue)
+{
+	(void)be_dev;
+	(void)hw_queue;
+	NT_LOG(ERR, FILTER, "ERROR free Rx queue\n");
+	return 0;
+}
+
+const struct flow_api_backend_ops flow_be_iface = {
+	1,
+
+	set_debug_mode,
+	get_nb_phy_ports,
+	get_nb_rx_ports,
+	get_ltx_avail,
+	get_nb_cat_funcs,
+	get_nb_categories,
+	get_nb_cat_km_if_cnt,
+	get_nb_cat_km_if_m0,
+	get_nb_cat_km_if_m1,
+	get_nb_queues,
+	get_nb_km_flow_types,
+	get_nb_pm_ext,
+	get_nb_len,
+	get_kcc_size,
+	get_kcc_banks,
+	get_nb_km_categories,
+	get_nb_km_cam_banks,
+	get_nb_km_cam_record_words,
+	get_nb_km_cam_records,
+	get_nb_km_tcam_banks,
+	get_nb_km_tcam_bank_width,
+	get_nb_flm_categories,
+	get_nb_flm_size_mb,
+	get_nb_flm_entry_size,
+	get_nb_flm_variant,
+	get_nb_flm_prios,
+	get_nb_flm_pst_profiles,
+	get_nb_flm_scrub_profiles,
+	get_nb_flm_load_aps_max,
+	get_nb_qsl_categories,
+	get_nb_qsl_qst_entries,
+	get_nb_pdb_categories,
+	get_nb_roa_categories,
+	get_nb_tpe_categories,
+	get_nb_tx_cpy_writers,
+	get_nb_tx_cpy_mask_mem,
+	get_nb_tx_rpl_depth,
+	get_nb_tx_rpl_ext_categories,
+	get_nb_tpe_ifr_categories,
+	get_nb_rpp_per_ps,
+	get_nb_hsh_categories,
+	get_nb_hsh_toeplitz,
+
+	alloc_rx_queue,
+	free_rx_queue,
+};
+
+const struct flow_api_backend_ops *bin_flow_backend_init(nthw_fpga_t *p_fpga, void **dev)
+{
+	uint8_t physical_adapter_no = (uint8_t)p_fpga->p_fpga_info->adapter_no;
+
+	struct info_nthw *pinfonthw = info_nthw_new();
+	info_nthw_init(pinfonthw, p_fpga, physical_adapter_no);
+	be_devs[physical_adapter_no].p_info_nthw = pinfonthw;
+
+	be_devs[physical_adapter_no].adapter_no = physical_adapter_no;
+	*dev = (void *)&be_devs[physical_adapter_no];
+
+	return &flow_be_iface;
+}
+
+static void bin_flow_backend_done(void *dev)
+{
+	struct backend_dev_s *be_dev = (struct backend_dev_s *)dev;
+	info_nthw_delete(be_dev->p_info_nthw);
+}
+
+static const struct flow_backend_ops ops = {
+	.bin_flow_backend_init = bin_flow_backend_init,
+	.bin_flow_backend_done = bin_flow_backend_done,
+};
+
+void flow_backend_init(void)
+{
+	register_flow_backend_ops(&ops);
+}
diff --git a/drivers/net/ntnic/nthw/flow_filter/flow_nthw_info.c b/drivers/net/ntnic/nthw/flow_filter/flow_nthw_info.c
new file mode 100644
index 0000000000..8e0b24dd9a
--- /dev/null
+++ b/drivers/net/ntnic/nthw/flow_filter/flow_nthw_info.c
@@ -0,0 +1,341 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Napatech A/S
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "nt_util.h"
+
+#include "nthw_drv.h"
+#include "nthw_register.h"
+
+#include "flow_nthw_info.h"
+
+static inline unsigned int clamp_one(unsigned int val)
+{
+	return val > 1 ? 1 : val;
+}
+
+struct info_nthw *info_nthw_new(void)
+{
+	struct info_nthw *p = malloc(sizeof(struct info_nthw));
+
+	if (p)
+		(void)memset(p, 0, sizeof(*p));
+
+	return p;
+}
+
+void info_nthw_delete(struct info_nthw *p)
+{
+	if (p) {
+		(void)memset(p, 0, sizeof(*p));
+		free(p);
+	}
+}
+
+int info_nthw_init(struct info_nthw *p, nthw_fpga_t *p_fpga, int n_instance)
+{
+	assert(n_instance >= 0 && n_instance < 256);
+
+	p->mp_fpga = p_fpga;
+	p->m_physical_adapter_no = (uint8_t)n_instance;
+
+	unsigned int km_present = clamp_one(nthw_fpga_get_product_param(p_fpga, NT_KM_PRESENT, 0));
+	unsigned int kcc_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_CAT_KCC_PRESENT, 0));
+	unsigned int roa_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_ROA_PRESENT, 0));
+	unsigned int dbs_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_DBS_PRESENT, 0));
+	unsigned int flm_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_FLM_PRESENT, 0));
+	unsigned int hst_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_HST_PRESENT, 0));
+
+	/* Modules for Tx Packet Edit function */
+	unsigned int hfu_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_HFU_PRESENT, 0));
+	unsigned int tx_cpy_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_TX_CPY_PRESENT, 0));
+	unsigned int tx_ins_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_TX_INS_PRESENT, 0));
+	unsigned int tx_rpl_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_TX_RPL_PRESENT, 0));
+	unsigned int csu_present =
+		clamp_one(nthw_fpga_get_product_param(p_fpga, NT_CSU_PRESENT, 0));
+	unsigned int tpe_present =
+		(hfu_present && tx_cpy_present && tx_ins_present && tx_rpl_present && csu_present)
+		? 1
+		: 0;
+
+	p->n_phy_ports = nthw_fpga_get_product_param(p_fpga, NT_PHY_PORTS, 0);
+	p->n_rx_ports = nthw_fpga_get_product_param(p_fpga, NT_RX_PORTS, 0);
+	p->n_ltx_avail = nthw_fpga_get_product_param(p_fpga, NT_LR_PRESENT, 0);
+	p->nb_cat_func = nthw_fpga_get_product_param(p_fpga, NT_CAT_FUNCS, 0);
+	p->nb_categories = nthw_fpga_get_product_param(p_fpga, NT_CATEGORIES, 0);
+	p->nb_queues = nthw_fpga_get_product_param(p_fpga, NT_QUEUES, 0);
+	p->nb_flow_types = nthw_fpga_get_product_param(p_fpga, NT_KM_FLOW_TYPES, 0) *
+		clamp_one(km_present + flm_present);
+	p->nb_pm_ext = nthw_fpga_get_product_param(p_fpga, NT_CAT_N_EXT, 0);
+	p->nb_len = nthw_fpga_get_product_param(p_fpga, NT_CAT_N_LEN, 0);
+	p->nb_kcc_size = nthw_fpga_get_product_param(p_fpga, NT_CAT_KCC_SIZE, 0) * kcc_present;
+	p->nb_kcc_banks = nthw_fpga_get_product_param(p_fpga, NT_CAT_KCC_BANKS, 0) * kcc_present;
+	p->nb_km_categories =
+		nthw_fpga_get_product_param(p_fpga, NT_KM_CATEGORIES, 0) * km_present;
+	p->nb_km_cam_banks = nthw_fpga_get_product_param(p_fpga, NT_KM_CAM_BANKS, 0) * km_present;
+	p->nb_km_cam_record_words =
+		nthw_fpga_get_product_param(p_fpga, NT_KM_CAM_REC_WORDS, 0) * km_present;
+	p->nb_km_cam_records =
+		nthw_fpga_get_product_param(p_fpga, NT_KM_CAM_RECORDS, 0) * km_present;
+	p->nb_km_tcam_banks =
+		nthw_fpga_get_product_param(p_fpga, NT_KM_TCAM_BANKS, 0) * km_present;
+	p->nb_km_tcam_bank_width =
+		nthw_fpga_get_product_param(p_fpga, NT_KM_TCAM_BANK_WIDTH, 0) * km_present;
+	p->nb_flm_categories =
+		nthw_fpga_get_product_param(p_fpga, NT_FLM_CATEGORIES, 0) * flm_present;
+	p->nb_flm_size_mb = nthw_fpga_get_product_param(p_fpga, NT_FLM_SIZE_MB, 0);
+	p->nb_flm_entry_size = nthw_fpga_get_product_param(p_fpga, NT_FLM_ENTRY_SIZE, 0);
+	p->nb_flm_variant = nthw_fpga_get_product_param(p_fpga, NT_FLM_VARIANT, 0);
+	p->nb_flm_prios = nthw_fpga_get_product_param(p_fpga, NT_FLM_PRIOS, 0) * flm_present;
+	p->nb_flm_pst_profiles =
+		nthw_fpga_get_product_param(p_fpga, NT_FLM_PST_PROFILES, 0) * flm_present;
+	p->nb_flm_scrub_profiles =
+		nthw_fpga_get_product_param(p_fpga, NT_FLM_SCRUB_PROFILES, 0) * flm_present;
+	p->nb_flm_load_aps_max = nthw_fpga_get_product_param(p_fpga, NT_FLM_LOAD_APS_MAX, 0);
+	p->nb_hst_categories =
+		nthw_fpga_get_product_param(p_fpga, NT_HST_CATEGORIES, 0) * hst_present;
+	p->nb_qsl_categories = nthw_fpga_get_product_param(p_fpga, NT_QSL_CATEGORIES, 0);
+	p->nb_qsl_qst_entries = nthw_fpga_get_product_param(p_fpga, NT_QSL_QST_SIZE, 0);
+	p->nb_pdb_categories = nthw_fpga_get_product_param(p_fpga, NT_PDB_CATEGORIES, 0);
+	p->nb_roa_categories =
+		nthw_fpga_get_product_param(p_fpga, NT_ROA_CATEGORIES, 0) * roa_present;
+	p->nb_dbs_categories = min(nthw_fpga_get_product_param(p_fpga, NT_DBS_RX_QUEUES, 0),
+			nthw_fpga_get_product_param(p_fpga, NT_DBS_TX_QUEUES, 0)) *
+		dbs_present;
+	p->nb_cat_km_if_cnt =
+		nthw_fpga_get_product_param(p_fpga, NT_CAT_KM_IF_CNT, km_present + flm_present);
+	p->m_cat_km_if_m0 = nthw_fpga_get_product_param(p_fpga, NT_CAT_KM_IF_M0, -1);
+	p->m_cat_km_if_m1 = nthw_fpga_get_product_param(p_fpga, NT_CAT_KM_IF_M1, -1);
+	p->nb_tpe_categories =
+		nthw_fpga_get_product_param(p_fpga, NT_TPE_CATEGORIES, 0) * tpe_present;
+	p->nb_tx_cpy_writers =
+		nthw_fpga_get_product_param(p_fpga, NT_TX_CPY_WRITERS, 0) * tpe_present;
+	p->nb_tx_cpy_mask_mem =
+		nthw_fpga_get_product_param(p_fpga, NT_CPY_MASK_MEM, 0) * tpe_present;
+	p->nb_tx_rpl_depth = nthw_fpga_get_product_param(p_fpga, NT_TX_RPL_DEPTH, 0) * tpe_present;
+	p->nb_tx_rpl_ext_categories =
+		nthw_fpga_get_product_param(p_fpga, NT_TX_RPL_EXT_CATEGORIES, 0) * tpe_present;
+	p->nb_tpe_ifr_categories = nthw_fpga_get_product_param(p_fpga, NT_TX_MTU_PROFILE_IFR, 0);
+	p->nb_rpp_per_ps = nthw_fpga_get_product_param(p_fpga, NT_RPP_PER_PS, 0);
+	p->nb_hsh_categories = nthw_fpga_get_product_param(p_fpga, NT_HSH_CATEGORIES, 0);
+	p->nb_hsh_toeplitz = nthw_fpga_get_product_param(p_fpga, NT_HSH_TOEPLITZ, 0);
+	return 0;
+}
+
+unsigned int info_nthw_get_nb_phy_ports(const struct info_nthw *p)
+{
+	return p->n_phy_ports;
+}
+
+unsigned int info_nthw_get_nb_rx_ports(const struct info_nthw *p)
+{
+	return p->n_rx_ports;
+}
+
+unsigned int info_nthw_get_ltx_avail(const struct info_nthw *p)
+{
+	return p->n_ltx_avail;
+}
+
+unsigned int info_nthw_get_nb_categories(const struct info_nthw *p)
+{
+	return p->nb_categories;
+}
+
+unsigned int info_nthw_get_kcc_size(const struct info_nthw *p)
+{
+	return p->nb_kcc_size;
+}
+
+unsigned int info_nthw_get_kcc_banks(const struct info_nthw *p)
+{
+	return p->nb_kcc_banks;
+}
+
+unsigned int info_nthw_get_nb_queues(const struct info_nthw *p)
+{
+	return p->nb_queues;
+}
+
+unsigned int info_nthw_get_nb_cat_funcs(const struct info_nthw *p)
+{
+	return p->nb_cat_func;
+}
+
+unsigned int info_nthw_get_nb_km_flow_types(const struct info_nthw *p)
+{
+	return p->nb_flow_types;
+}
+
+unsigned int info_nthw_get_nb_pm_ext(const struct info_nthw *p)
+{
+	return p->nb_pm_ext;
+}
+
+unsigned int info_nthw_get_nb_len(const struct info_nthw *p)
+{
+	return p->nb_len;
+}
+
+unsigned int info_nthw_get_nb_km_categories(const struct info_nthw *p)
+{
+	return p->nb_km_categories;
+}
+
+unsigned int info_nthw_get_nb_km_cam_banks(const struct info_nthw *p)
+{
+	return p->nb_km_cam_banks;
+}
+
+unsigned int info_nthw_get_nb_km_cam_record_words(const struct info_nthw *p)
+{
+	return p->nb_km_cam_record_words;
+}
+
+unsigned int info_nthw_get_nb_km_cam_records(const struct info_nthw *p)
+{
+	return p->nb_km_cam_records;
+}
+
+unsigned int info_nthw_get_nb_km_tcam_banks(const struct info_nthw *p)
+{
+	return p->nb_km_tcam_banks;
+}
+
+unsigned int info_nthw_get_nb_km_tcam_bank_width(const struct info_nthw *p)
+{
+	return p->nb_km_tcam_bank_width;
+}
+
+unsigned int info_nthw_get_nb_flm_categories(const struct info_nthw *p)
+{
+	return p->nb_flm_categories;
+}
+
+unsigned int info_nthw_get_nb_flm_size_mb(const struct info_nthw *p)
+{
+	return p->nb_flm_size_mb;
+}
+
+unsigned int info_nthw_get_nb_flm_entry_size(const struct info_nthw *p)
+{
+	return p->nb_flm_entry_size;
+}
+
+unsigned int info_nthw_get_nb_flm_variant(const struct info_nthw *p)
+{
+	return p->nb_flm_variant;
+}
+
+unsigned int info_nthw_get_nb_flm_prios(const struct info_nthw *p)
+{
+	return p->nb_flm_prios;
+}
+
+unsigned int info_nthw_get_nb_flm_pst_profiles(const struct info_nthw *p)
+{
+	return p->nb_flm_pst_profiles;
+}
+
+unsigned int info_nthw_get_nb_flm_scrub_profiles(const struct info_nthw *p)
+{
+	return p->nb_flm_scrub_profiles;
+}
+
+unsigned int info_nthw_get_nb_flm_load_aps_max(const struct info_nthw *p)
+{
+	return p->nb_flm_load_aps_max;
+}
+
+unsigned int info_nthw_get_nb_qsl_categories(const struct info_nthw *p)
+{
+	return p->nb_qsl_categories;
+}
+
+unsigned int info_nthw_get_nb_qsl_qst_entries(const struct info_nthw *p)
+{
+	return p->nb_qsl_qst_entries;
+}
+
+unsigned int info_nthw_get_nb_pdb_categories(const struct info_nthw *p)
+{
+	return p->nb_pdb_categories;
+}
+
+unsigned int info_nthw_get_nb_roa_categories(const struct info_nthw *p)
+{
+	return p->nb_roa_categories;
+}
+
+unsigned int info_nthw_get_nb_cat_km_if_cnt(const struct info_nthw *p)
+{
+	return p->nb_cat_km_if_cnt;
+}
+
+unsigned int info_nthw_get_nb_cat_km_if_m0(const struct info_nthw *p)
+{
+	return p->m_cat_km_if_m0;
+}
+
+unsigned int info_nthw_get_nb_cat_km_if_m1(const struct info_nthw *p)
+{
+	return p->m_cat_km_if_m1;
+}
+
+unsigned int info_nthw_get_nb_tpe_categories(const struct info_nthw *p)
+{
+	return p->nb_tpe_categories;
+}
+
+unsigned int info_nthw_get_nb_tx_cpy_writers(const struct info_nthw *p)
+{
+	return p->nb_tx_cpy_writers;
+}
+
+unsigned int info_nthw_get_nb_tx_cpy_mask_mem(const struct info_nthw *p)
+{
+	return p->nb_tx_cpy_mask_mem;
+}
+
+unsigned int info_nthw_get_nb_tx_rpl_depth(const struct info_nthw *p)
+{
+	return p->nb_tx_rpl_depth;
+}
+
+unsigned int info_nthw_get_nb_tx_rpl_ext_categories(const struct info_nthw *p)
+{
+	return p->nb_tx_rpl_ext_categories;
+}
+
+unsigned int info_nthw_get_nb_tpe_ifr_categories(const struct info_nthw *p)
+{
+	return p->nb_tpe_ifr_categories;
+}
+
+unsigned int info_nthw_get_nb_rpp_per_ps(const struct info_nthw *p)
+{
+	return p->nb_rpp_per_ps;
+}
+
+unsigned int info_nthw_get_nb_hsh_categories(const struct info_nthw *p)
+{
+	return p->nb_hsh_categories;
+}
+
+unsigned int info_nthw_get_nb_hsh_toeplitz(const struct info_nthw *p)
+{
+	return p->nb_hsh_toeplitz;
+}
diff --git a/drivers/net/ntnic/nthw/flow_filter/flow_nthw_info.h b/drivers/net/ntnic/nthw/flow_filter/flow_nthw_info.h
new file mode 100644
index 0000000000..d726e89e57
--- /dev/null
+++ b/drivers/net/ntnic/nthw/flow_filter/flow_nthw_info.h
@@ -0,0 +1,110 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Napatech A/S
+ */
+
+#ifndef __FLOW_NTHW_INFO_H__
+#define __FLOW_NTHW_INFO_H__
+
+#include <stdint.h>
+
+#include "nthw_fpga_model.h"
+
+struct info_nthw;
+
+struct info_nthw *info_nthw_new(void);
+void info_nthw_delete(struct info_nthw *p);
+int info_nthw_init(struct info_nthw *p, nthw_fpga_t *p_fpga, int n_instance);
+
+unsigned int info_nthw_get_nb_phy_ports(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_rx_ports(const struct info_nthw *p);
+unsigned int info_nthw_get_ltx_avail(const struct info_nthw *p);
+
+unsigned int info_nthw_get_nb_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_queues(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_cat_funcs(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_km_flow_types(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_pm_ext(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_len(const struct info_nthw *p);
+unsigned int info_nthw_get_kcc_size(const struct info_nthw *p);
+unsigned int info_nthw_get_kcc_banks(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_km_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_km_cam_banks(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_km_cam_record_words(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_km_cam_records(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_km_tcam_banks(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_km_tcam_bank_width(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_flm_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_flm_size_mb(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_flm_entry_size(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_flm_variant(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_flm_prios(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_flm_pst_profiles(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_flm_scrub_profiles(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_flm_load_aps_max(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_qsl_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_qsl_qst_entries(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_pdb_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_roa_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_cat_km_if_cnt(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_cat_km_if_m0(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_cat_km_if_m1(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_tpe_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_tx_cpy_writers(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_tx_cpy_mask_mem(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_tx_rpl_depth(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_tx_rpl_ext_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_tpe_ifr_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_rpp_per_ps(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_hsh_categories(const struct info_nthw *p);
+unsigned int info_nthw_get_nb_hsh_toeplitz(const struct info_nthw *p);
+
+struct info_nthw {
+	uint8_t m_physical_adapter_no;
+	nthw_fpga_t *mp_fpga;
+	unsigned int n_phy_ports;
+	unsigned int n_rx_ports;
+	unsigned int n_ltx_avail;
+	unsigned int nb_cat_func;
+	unsigned int nb_categories;
+	unsigned int nb_queues;
+	unsigned int nb_flow_types;
+	unsigned int nb_pm_ext;
+	unsigned int nb_len;
+	unsigned int nb_kcc_size;
+	unsigned int nb_kcc_banks;
+	unsigned int nb_km_categories;
+	unsigned int nb_km_cam_banks;
+	unsigned int nb_km_cam_record_words;
+	unsigned int nb_km_cam_records;
+	unsigned int nb_km_tcam_banks;
+	unsigned int nb_km_tcam_bank_width;
+	unsigned int nb_flm_categories;
+	unsigned int nb_flm_size_mb;
+	unsigned int nb_flm_entry_size;
+	unsigned int nb_flm_variant;
+	unsigned int nb_flm_prios;
+	unsigned int nb_flm_pst_profiles;
+	unsigned int nb_flm_scrub_profiles;
+	unsigned int nb_flm_load_aps_max;
+	unsigned int nb_hst_categories;
+	unsigned int nb_qsl_categories;
+	unsigned int nb_qsl_qst_entries;
+	unsigned int nb_pdb_categories;
+	unsigned int nb_roa_categories;
+	unsigned int nb_dbs_categories;
+	unsigned int nb_cat_km_if_cnt;
+	unsigned int m_cat_km_if_m0;
+	unsigned int m_cat_km_if_m1;
+	unsigned int nb_tpe_categories;
+	unsigned int nb_tx_cpy_writers;
+	unsigned int nb_tx_cpy_mask_mem;
+	unsigned int nb_tx_rpl_depth;
+	unsigned int nb_tx_rpl_ext_categories;
+	unsigned int nb_tpe_ifr_categories;
+	unsigned int nb_rpp_per_ps;
+	unsigned int nb_hsh_categories;
+	unsigned int nb_hsh_toeplitz;
+};
+
+#endif  /* __FLOW_NTHW_INFO_H__ */
diff --git a/drivers/net/ntnic/nthw/nthw_drv.h b/drivers/net/ntnic/nthw/nthw_drv.h
index de60ae171e..41500f49dd 100644
--- a/drivers/net/ntnic/nthw/nthw_drv.h
+++ b/drivers/net/ntnic/nthw/nthw_drv.h
@@ -14,6 +14,8 @@ typedef enum nt_meta_port_type_e {
 	PORT_TYPE_OVERRIDE,
 } nt_meta_port_type_t;
 
+#include "nthw_helper.h"
+
 enum fpga_info_profile {
 	FPGA_INFO_PROFILE_UNKNOWN = 0,
 	FPGA_INFO_PROFILE_VSWITCH = 1,
diff --git a/drivers/net/ntnic/nthw/nthw_helper.h b/drivers/net/ntnic/nthw/nthw_helper.h
new file mode 100644
index 0000000000..25a8d2a947
--- /dev/null
+++ b/drivers/net/ntnic/nthw/nthw_helper.h
@@ -0,0 +1,11 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Napatech A/S
+ */
+
+#ifndef __NTHW_HELPER_H__
+#define __NTHW_HELPER_H__
+
+#include <assert.h>
+
+#endif  /* __NTHW_HELPER_H__ */
diff --git a/drivers/net/ntnic/ntnic_mod_reg.c b/drivers/net/ntnic/ntnic_mod_reg.c
index 2094e1fbb9..ff9afbeb7c 100644
--- a/drivers/net/ntnic/ntnic_mod_reg.c
+++ b/drivers/net/ntnic/ntnic_mod_reg.c
@@ -91,8 +91,16 @@ struct rst9563_ops *get_rst9563_ops(void)
 
 static const struct flow_backend_ops *flow_backend_ops;
 
+void register_flow_backend_ops(const struct flow_backend_ops *ops)
+{
+	flow_backend_ops = ops;
+}
+
 const struct flow_backend_ops *get_flow_backend_ops(void)
 {
+	if (flow_backend_ops == NULL)
+		flow_backend_init();
+
 	return flow_backend_ops;
 }
 
diff --git a/drivers/net/ntnic/ntnic_mod_reg.h b/drivers/net/ntnic/ntnic_mod_reg.h
index 90d9c73f9f..602f5de77d 100644
--- a/drivers/net/ntnic/ntnic_mod_reg.h
+++ b/drivers/net/ntnic/ntnic_mod_reg.h
@@ -124,7 +124,9 @@ struct flow_backend_ops {
 	void (*bin_flow_backend_done)(void *be_dev);
 };
 
+void register_flow_backend_ops(const struct flow_backend_ops *ops);
 const struct flow_backend_ops *get_flow_backend_ops(void);
+void flow_backend_init(void);
 
 struct flow_filter_ops {
 	int (*flow_filter_init)(nthw_fpga_t *p_fpga, struct flow_nic_dev **p_flow_device,
diff --git a/drivers/net/ntnic/ntutil/nt_util.h b/drivers/net/ntnic/ntutil/nt_util.h
index ea91181a06..540cd615f2 100644
--- a/drivers/net/ntnic/ntutil/nt_util.h
+++ b/drivers/net/ntnic/ntutil/nt_util.h
@@ -23,6 +23,11 @@
 uint64_t nt_os_get_time_monotonic_counter(void);
 void nt_os_wait_usec(int val);
 
+static inline int min(int a, int b)
+{
+	return (a < b) ? a : b;
+}
+
 uint64_t nt_util_align_size(uint64_t size);
 
 struct nt_dma_s {
-- 
2.45.0