[PATCH v1 07/73] net/ntnic: add NT flow profile management implementation

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

Implements functions required for (re)set NT flow dev

Signed-off-by: Serhii Iliushyk <sil-plv@napatech.com>
---
 drivers/net/ntnic/include/flow_api.h          |  4 ++
 drivers/net/ntnic/include/flow_api_engine.h   | 10 ++++
 drivers/net/ntnic/meson.build                 |  4 ++
 drivers/net/ntnic/nthw/flow_api/flow_group.c  | 55 +++++++++++++++++
 .../net/ntnic/nthw/flow_api/flow_id_table.c   | 52 ++++++++++++++++
 .../net/ntnic/nthw/flow_api/flow_id_table.h   | 19 ++++++
 .../profile_inline/flow_api_hw_db_inline.c    | 59 +++++++++++++++++++
 .../profile_inline/flow_api_hw_db_inline.h    | 23 ++++++++
 .../profile_inline/flow_api_profile_inline.c  | 52 ++++++++++++++++
 9 files changed, 278 insertions(+)
 create mode 100644 drivers/net/ntnic/nthw/flow_api/flow_group.c
 create mode 100644 drivers/net/ntnic/nthw/flow_api/flow_id_table.c
 create mode 100644 drivers/net/ntnic/nthw/flow_api/flow_id_table.h
 create mode 100644 drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_hw_db_inline.c
 create mode 100644 drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_hw_db_inline.h

diff --git a/drivers/net/ntnic/include/flow_api.h b/drivers/net/ntnic/include/flow_api.h
index 790b2f6b03..748da89262 100644
--- a/drivers/net/ntnic/include/flow_api.h
+++ b/drivers/net/ntnic/include/flow_api.h
@@ -61,6 +61,10 @@ struct flow_nic_dev {
 	void *km_res_handle;
 	void *kcc_res_handle;
 
+	void *group_handle;
+	void *hw_db_handle;
+	void *id_table_handle;
+
 	uint32_t flow_unique_id_counter;
 	/* linked list of all flows created on this NIC */
 	struct flow_handle *flow_base;
diff --git a/drivers/net/ntnic/include/flow_api_engine.h b/drivers/net/ntnic/include/flow_api_engine.h
index 52ff3cb865..2497c31a08 100644
--- a/drivers/net/ntnic/include/flow_api_engine.h
+++ b/drivers/net/ntnic/include/flow_api_engine.h
@@ -6,6 +6,8 @@
 #ifndef _FLOW_API_ENGINE_H_
 #define _FLOW_API_ENGINE_H_
 
+#include <stdint.h>
+
 /*
  * Resource management
  */
@@ -46,6 +48,9 @@ enum res_type_e {
  */
 #define MAX_OUTPUT_DEST (128)
 
+#define MAX_CPY_WRITERS_SUPPORTED 8
+
+
 struct flow_handle {
 	struct flow_eth_dev *dev;
 	struct flow_handle *next;
@@ -55,4 +60,9 @@ void km_free_ndev_resource_management(void **handle);
 
 void kcc_free_ndev_resource_management(void **handle);
 
+/*
+ * Group management
+ */
+int flow_group_handle_create(void **handle, uint32_t group_count);
+int flow_group_handle_destroy(void **handle);
 #endif  /* _FLOW_API_ENGINE_H_ */
diff --git a/drivers/net/ntnic/meson.build b/drivers/net/ntnic/meson.build
index f5605e81cb..f7292144ac 100644
--- a/drivers/net/ntnic/meson.build
+++ b/drivers/net/ntnic/meson.build
@@ -18,6 +18,7 @@ includes = [
         include_directories('nthw/supported'),
         include_directories('nthw/model'),
         include_directories('nthw/flow_filter'),
+        include_directories('nthw/flow_api'),
         include_directories('nim/'),
 ]
 
@@ -47,7 +48,10 @@ sources = files(
         'nthw/core/nthw_sdc.c',
         'nthw/core/nthw_si5340.c',
         'nthw/flow_api/flow_api.c',
+        'nthw/flow_api/flow_group.c',
+        'nthw/flow_api/flow_id_table.c',
         'nthw/flow_api/profile_inline/flow_api_profile_inline.c',
+        'nthw/flow_api/profile_inline/flow_api_hw_db_inline.c',
         'nthw/flow_api/flow_backend/flow_backend.c',
         'nthw/flow_api/flow_filter.c',
         'nthw/flow_api/flow_kcc.c',
diff --git a/drivers/net/ntnic/nthw/flow_api/flow_group.c b/drivers/net/ntnic/nthw/flow_api/flow_group.c
new file mode 100644
index 0000000000..a7371f3aad
--- /dev/null
+++ b/drivers/net/ntnic/nthw/flow_api/flow_group.c
@@ -0,0 +1,55 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Napatech A/S
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "flow_api_engine.h"
+
+#define OWNER_ID_COUNT 256
+#define PORT_COUNT 8
+
+struct group_lookup_entry_s {
+	uint64_t ref_counter;
+	uint32_t *reverse_lookup;
+};
+
+struct group_handle_s {
+	uint32_t group_count;
+
+	uint32_t *translation_table;
+
+	struct group_lookup_entry_s *lookup_entries;
+};
+
+int flow_group_handle_create(void **handle, uint32_t group_count)
+{
+	struct group_handle_s *group_handle;
+
+	*handle = calloc(1, sizeof(struct group_handle_s));
+	group_handle = *handle;
+
+	group_handle->group_count = group_count;
+	group_handle->translation_table =
+		calloc((uint32_t)(group_count * PORT_COUNT * OWNER_ID_COUNT), sizeof(uint32_t));
+	group_handle->lookup_entries = calloc(group_count, sizeof(struct group_lookup_entry_s));
+
+	return *handle != NULL ? 0 : -1;
+}
+
+int flow_group_handle_destroy(void **handle)
+{
+	if (*handle) {
+		struct group_handle_s *group_handle = (struct group_handle_s *)*handle;
+
+		free(group_handle->translation_table);
+		free(group_handle->lookup_entries);
+
+		free(*handle);
+		*handle = NULL;
+	}
+
+	return 0;
+}
diff --git a/drivers/net/ntnic/nthw/flow_api/flow_id_table.c b/drivers/net/ntnic/nthw/flow_api/flow_id_table.c
new file mode 100644
index 0000000000..9b46848e59
--- /dev/null
+++ b/drivers/net/ntnic/nthw/flow_api/flow_id_table.c
@@ -0,0 +1,52 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2024 Napatech A/S
+ */
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "flow_id_table.h"
+
+#define NTNIC_ARRAY_BITS 14
+#define NTNIC_ARRAY_SIZE (1 << NTNIC_ARRAY_BITS)
+
+struct ntnic_id_table_element {
+	union flm_handles handle;
+	uint8_t caller_id;
+	uint8_t type;
+};
+
+struct ntnic_id_table_data {
+	struct ntnic_id_table_element *arrays[NTNIC_ARRAY_SIZE];
+	pthread_mutex_t mtx;
+
+	uint32_t next_id;
+
+	uint32_t free_head;
+	uint32_t free_tail;
+	uint32_t free_count;
+};
+
+void *ntnic_id_table_create(void)
+{
+	struct ntnic_id_table_data *handle = calloc(1, sizeof(struct ntnic_id_table_data));
+
+	pthread_mutex_init(&handle->mtx, NULL);
+	handle->next_id = 1;
+
+	return handle;
+}
+
+void ntnic_id_table_destroy(void *id_table)
+{
+	struct ntnic_id_table_data *handle = id_table;
+
+	for (uint32_t i = 0; i < NTNIC_ARRAY_SIZE; ++i)
+		free(handle->arrays[i]);
+
+	pthread_mutex_destroy(&handle->mtx);
+
+	free(id_table);
+}
diff --git a/drivers/net/ntnic/nthw/flow_api/flow_id_table.h b/drivers/net/ntnic/nthw/flow_api/flow_id_table.h
new file mode 100644
index 0000000000..13455f1165
--- /dev/null
+++ b/drivers/net/ntnic/nthw/flow_api/flow_id_table.h
@@ -0,0 +1,19 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2024 Napatech A/S
+ */
+
+#ifndef _FLOW_ID_TABLE_H_
+#define _FLOW_ID_TABLE_H_
+
+#include <stdint.h>
+
+union flm_handles {
+	uint64_t idx;
+	void *p;
+};
+
+void *ntnic_id_table_create(void);
+void ntnic_id_table_destroy(void *id_table);
+
+#endif	/* FLOW_ID_TABLE_H_ */
diff --git a/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_hw_db_inline.c b/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_hw_db_inline.c
new file mode 100644
index 0000000000..5fda11183c
--- /dev/null
+++ b/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_hw_db_inline.c
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Napatech A/S
+ */
+
+
+#include "flow_api_hw_db_inline.h"
+
+/******************************************************************************/
+/* Handle                                                                     */
+/******************************************************************************/
+
+struct hw_db_inline_resource_db {
+	/* Actions */
+	struct hw_db_inline_resource_db_cot {
+		struct hw_db_inline_cot_data data;
+		int ref;
+	} *cot;
+
+	uint32_t nb_cot;
+
+	/* Hardware */
+
+	struct hw_db_inline_resource_db_cfn {
+		uint64_t priority;
+		int cfn_hw;
+		int ref;
+	} *cfn;
+};
+
+int hw_db_inline_create(struct flow_nic_dev *ndev, void **db_handle)
+{
+	/* Note: calloc is required for functionality in the hw_db_inline_destroy() */
+	struct hw_db_inline_resource_db *db = calloc(1, sizeof(struct hw_db_inline_resource_db));
+
+	if (db == NULL)
+		return -1;
+
+	db->nb_cot = ndev->be.cat.nb_cat_funcs;
+	db->cot = calloc(db->nb_cot, sizeof(struct hw_db_inline_resource_db_cot));
+
+	if (db->cot == NULL) {
+		hw_db_inline_destroy(db);
+		return -1;
+	}
+
+	*db_handle = db;
+	return 0;
+}
+
+void hw_db_inline_destroy(void *db_handle)
+{
+	struct hw_db_inline_resource_db *db = (struct hw_db_inline_resource_db *)db_handle;
+
+	free(db->cot);
+
+	free(db->cfn);
+
+	free(db);
+}
diff --git a/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_hw_db_inline.h b/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_hw_db_inline.h
new file mode 100644
index 0000000000..23caf73cf3
--- /dev/null
+++ b/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_hw_db_inline.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2023 Napatech A/S
+ */
+
+#ifndef _FLOW_API_HW_DB_INLINE_H_
+#define _FLOW_API_HW_DB_INLINE_H_
+
+#include <stdint.h>
+
+#include "flow_api.h"
+
+struct hw_db_inline_cot_data {
+	uint32_t matcher_color_contrib : 4;
+	uint32_t frag_rcp : 4;
+	uint32_t padding : 24;
+};
+
+/**/
+
+int hw_db_inline_create(struct flow_nic_dev *ndev, void **db_handle);
+void hw_db_inline_destroy(void *db_handle);
+
+#endif	/* _FLOW_API_HW_DB_INLINE_H_ */
diff --git a/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_profile_inline.c b/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_profile_inline.c
index c9e4008b7e..986196b408 100644
--- a/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_profile_inline.c
+++ b/drivers/net/ntnic/nthw/flow_api/profile_inline/flow_api_profile_inline.c
@@ -4,6 +4,9 @@
  */
 
 #include "ntlog.h"
+#include "flow_api_engine.h"
+#include "flow_api_hw_db_inline.h"
+#include "flow_id_table.h"
 
 #include "flow_api_profile_inline.h"
 #include "ntnic_mod_reg.h"
@@ -14,11 +17,60 @@
 
 int initialize_flow_management_of_ndev_profile_inline(struct flow_nic_dev *ndev)
 {
+	if (!ndev->flow_mgnt_prepared) {
+		/* Check static arrays are big enough */
+		assert(ndev->be.tpe.nb_cpy_writers <= MAX_CPY_WRITERS_SUPPORTED);
+
+		ndev->id_table_handle = ntnic_id_table_create();
+
+		if (ndev->id_table_handle == NULL)
+			goto err_exit0;
+
+		if (flow_group_handle_create(&ndev->group_handle, ndev->be.flm.nb_categories))
+			goto err_exit0;
+
+		if (hw_db_inline_create(ndev, &ndev->hw_db_handle))
+			goto err_exit0;
+
+		ndev->flow_mgnt_prepared = 1;
+	}
+
+	return 0;
+
+err_exit0:
+	done_flow_management_of_ndev_profile_inline(ndev);
 	return -1;
 }
 
 int done_flow_management_of_ndev_profile_inline(struct flow_nic_dev *ndev)
 {
+#ifdef FLOW_DEBUG
+	ndev->be.iface->set_debug_mode(ndev->be.be_dev, FLOW_BACKEND_DEBUG_MODE_WRITE);
+#endif
+
+	if (ndev->flow_mgnt_prepared) {
+		flow_nic_free_resource(ndev, RES_KM_FLOW_TYPE, 0);
+		flow_nic_free_resource(ndev, RES_KM_CATEGORY, 0);
+
+		flow_group_handle_destroy(&ndev->group_handle);
+		ntnic_id_table_destroy(ndev->id_table_handle);
+
+		flow_nic_free_resource(ndev, RES_CAT_CFN, 0);
+
+		hw_mod_tpe_reset(&ndev->be);
+		flow_nic_free_resource(ndev, RES_TPE_RCP, 0);
+		flow_nic_free_resource(ndev, RES_TPE_EXT, 0);
+		flow_nic_free_resource(ndev, RES_TPE_RPL, 0);
+
+		hw_db_inline_destroy(ndev->hw_db_handle);
+
+#ifdef FLOW_DEBUG
+		ndev->be.iface->set_debug_mode(ndev->be.be_dev, FLOW_BACKEND_DEBUG_MODE_NONE);
+#endif
+
+		ndev->flow_mgnt_prepared = 0;
+	}
+
 	return 0;
 }
 
-- 
2.45.0