diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc.c
new file mode 100644
index 0000000000000..bd52b05db3670
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc.c
@@ -0,0 +1,997 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
+
+#include "mlx5hws_internal.h"
+
+static u16 hws_bwc_gen_queue_idx(struct mlx5hws_context *ctx)
+{
+	/* assign random queue */
+	return get_random_u8() % mlx5hws_bwc_queues(ctx);
+}
+
+static u16
+hws_bwc_get_burst_th(struct mlx5hws_context *ctx, u16 queue_id)
+{
+	return min(ctx->send_queue[queue_id].num_entries / 2,
+		   MLX5HWS_BWC_MATCHER_REHASH_BURST_TH);
+}
+
+static struct mutex *
+hws_bwc_get_queue_lock(struct mlx5hws_context *ctx, u16 idx)
+{
+	return &ctx->bwc_send_queue_locks[idx];
+}
+
+static void hws_bwc_lock_all_queues(struct mlx5hws_context *ctx)
+{
+	u16 bwc_queues = mlx5hws_bwc_queues(ctx);
+	struct mutex *queue_lock; /* Protect the queue */
+	int i;
+
+	for (i = 0; i < bwc_queues; i++) {
+		queue_lock = hws_bwc_get_queue_lock(ctx, i);
+		mutex_lock(queue_lock);
+	}
+}
+
+static void hws_bwc_unlock_all_queues(struct mlx5hws_context *ctx)
+{
+	u16 bwc_queues = mlx5hws_bwc_queues(ctx);
+	struct mutex *queue_lock; /* Protect the queue */
+	int i = bwc_queues;
+
+	while (i--) {
+		queue_lock = hws_bwc_get_queue_lock(ctx, i);
+		mutex_unlock(queue_lock);
+	}
+}
+
+static void hws_bwc_matcher_init_attr(struct mlx5hws_matcher_attr *attr,
+				      u32 priority,
+				      u8 size_log)
+{
+	memset(attr, 0, sizeof(*attr));
+
+	attr->priority = priority;
+	attr->optimize_using_rule_idx = 0;
+	attr->mode = MLX5HWS_MATCHER_RESOURCE_MODE_RULE;
+	attr->optimize_flow_src = MLX5HWS_MATCHER_FLOW_SRC_ANY;
+	attr->insert_mode = MLX5HWS_MATCHER_INSERT_BY_HASH;
+	attr->distribute_mode = MLX5HWS_MATCHER_DISTRIBUTE_BY_HASH;
+	attr->rule.num_log = size_log;
+	attr->resizable = true;
+	attr->max_num_of_at_attach = MLX5HWS_BWC_MATCHER_ATTACH_AT_NUM;
+}
+
+int mlx5hws_bwc_matcher_create_simple(struct mlx5hws_bwc_matcher *bwc_matcher,
+				      struct mlx5hws_table *table,
+				      u32 priority,
+				      u8 match_criteria_enable,
+				      struct mlx5hws_match_parameters *mask,
+				      enum mlx5hws_action_type action_types[])
+{
+	enum mlx5hws_action_type init_action_types[1] = { MLX5HWS_ACTION_TYP_LAST };
+	struct mlx5hws_context *ctx = table->ctx;
+	u16 bwc_queues = mlx5hws_bwc_queues(ctx);
+	struct mlx5hws_matcher_attr attr = {0};
+	int i;
+
+	bwc_matcher->rules = kcalloc(bwc_queues, sizeof(*bwc_matcher->rules), GFP_KERNEL);
+	if (!bwc_matcher->rules)
+		goto err;
+
+	for (i = 0; i < bwc_queues; i++)
+		INIT_LIST_HEAD(&bwc_matcher->rules[i]);
+
+	hws_bwc_matcher_init_attr(&attr,
+				  priority,
+				  MLX5HWS_BWC_MATCHER_INIT_SIZE_LOG);
+
+	bwc_matcher->priority = priority;
+	bwc_matcher->size_log = MLX5HWS_BWC_MATCHER_INIT_SIZE_LOG;
+
+	/* create dummy action template */
+	bwc_matcher->at[0] =
+		mlx5hws_action_template_create(action_types ?
+					       action_types : init_action_types);
+	if (!bwc_matcher->at[0]) {
+		mlx5hws_err(table->ctx, "BWC matcher: failed creating action template\n");
+		goto free_bwc_matcher_rules;
+	}
+
+	bwc_matcher->num_of_at = 1;
+
+	bwc_matcher->mt = mlx5hws_match_template_create(ctx,
+							mask->match_buf,
+							mask->match_sz,
+							match_criteria_enable);
+	if (!bwc_matcher->mt) {
+		mlx5hws_err(table->ctx, "BWC matcher: failed creating match template\n");
+		goto free_at;
+	}
+
+	bwc_matcher->matcher = mlx5hws_matcher_create(table,
+						      &bwc_matcher->mt, 1,
+						      &bwc_matcher->at[0],
+						      bwc_matcher->num_of_at,
+						      &attr);
+	if (!bwc_matcher->matcher) {
+		mlx5hws_err(table->ctx, "BWC matcher: failed creating HWS matcher\n");
+		goto free_mt;
+	}
+
+	return 0;
+
+free_mt:
+	mlx5hws_match_template_destroy(bwc_matcher->mt);
+free_at:
+	mlx5hws_action_template_destroy(bwc_matcher->at[0]);
+free_bwc_matcher_rules:
+	kfree(bwc_matcher->rules);
+err:
+	return -EINVAL;
+}
+
+struct mlx5hws_bwc_matcher *
+mlx5hws_bwc_matcher_create(struct mlx5hws_table *table,
+			   u32 priority,
+			   u8 match_criteria_enable,
+			   struct mlx5hws_match_parameters *mask)
+{
+	struct mlx5hws_bwc_matcher *bwc_matcher;
+	bool is_complex;
+	int ret;
+
+	if (!mlx5hws_context_bwc_supported(table->ctx)) {
+		mlx5hws_err(table->ctx,
+			    "BWC matcher: context created w/o BWC API compatibility\n");
+		return NULL;
+	}
+
+	bwc_matcher = kzalloc(sizeof(*bwc_matcher), GFP_KERNEL);
+	if (!bwc_matcher)
+		return NULL;
+
+	/* Check if the required match params can be all matched
+	 * in single STE, otherwise complex matcher is needed.
+	 */
+
+	is_complex = mlx5hws_bwc_match_params_is_complex(table->ctx, match_criteria_enable, mask);
+	if (is_complex)
+		ret = mlx5hws_bwc_matcher_create_complex(bwc_matcher,
+							 table,
+							 priority,
+							 match_criteria_enable,
+							 mask);
+	else
+		ret = mlx5hws_bwc_matcher_create_simple(bwc_matcher,
+							table,
+							priority,
+							match_criteria_enable,
+							mask,
+							NULL);
+	if (ret)
+		goto free_bwc_matcher;
+
+	return bwc_matcher;
+
+free_bwc_matcher:
+	kfree(bwc_matcher);
+
+	return NULL;
+}
+
+int mlx5hws_bwc_matcher_destroy_simple(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	int i;
+
+	mlx5hws_matcher_destroy(bwc_matcher->matcher);
+	bwc_matcher->matcher = NULL;
+
+	for (i = 0; i < bwc_matcher->num_of_at; i++)
+		mlx5hws_action_template_destroy(bwc_matcher->at[i]);
+
+	mlx5hws_match_template_destroy(bwc_matcher->mt);
+	kfree(bwc_matcher->rules);
+
+	return 0;
+}
+
+int mlx5hws_bwc_matcher_destroy(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	if (bwc_matcher->num_of_rules)
+		mlx5hws_err(bwc_matcher->matcher->tbl->ctx,
+			    "BWC matcher destroy: matcher still has %d rules\n",
+			    bwc_matcher->num_of_rules);
+
+	mlx5hws_bwc_matcher_destroy_simple(bwc_matcher);
+
+	kfree(bwc_matcher);
+	return 0;
+}
+
+static int hws_bwc_queue_poll(struct mlx5hws_context *ctx,
+			      u16 queue_id,
+			      u32 *pending_rules,
+			      bool drain)
+{
+	struct mlx5hws_flow_op_result comp[MLX5HWS_BWC_MATCHER_REHASH_BURST_TH];
+	u16 burst_th = hws_bwc_get_burst_th(ctx, queue_id);
+	bool got_comp = *pending_rules >= burst_th;
+	bool queue_full;
+	int err = 0;
+	int ret;
+	int i;
+
+	/* Check if there are any completions at all */
+	if (!got_comp && !drain)
+		return 0;
+
+	queue_full = mlx5hws_send_engine_full(&ctx->send_queue[queue_id]);
+	while (queue_full || ((got_comp || drain) && *pending_rules)) {
+		ret = mlx5hws_send_queue_poll(ctx, queue_id, comp, burst_th);
+		if (unlikely(ret < 0)) {
+			mlx5hws_err(ctx, "BWC poll error: polling queue %d returned %d\n",
+				    queue_id, ret);
+			return -EINVAL;
+		}
+
+		if (ret) {
+			(*pending_rules) -= ret;
+			for (i = 0; i < ret; i++) {
+				if (unlikely(comp[i].status != MLX5HWS_FLOW_OP_SUCCESS)) {
+					mlx5hws_err(ctx,
+						    "BWC poll error: polling queue %d returned completion with error\n",
+						    queue_id);
+					err = -EINVAL;
+				}
+			}
+			queue_full = false;
+		}
+
+		got_comp = !!ret;
+	}
+
+	return err;
+}
+
+void
+mlx5hws_bwc_rule_fill_attr(struct mlx5hws_bwc_matcher *bwc_matcher,
+			   u16 bwc_queue_idx,
+			   u32 flow_source,
+			   struct mlx5hws_rule_attr *rule_attr)
+{
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+
+	/* no use of INSERT_BY_INDEX in bwc rule */
+	rule_attr->rule_idx = 0;
+
+	/* notify HW at each rule insertion/deletion */
+	rule_attr->burst = 0;
+
+	/* We don't need user data, but the API requires it to exist */
+	rule_attr->user_data = (void *)0xFACADE;
+
+	rule_attr->queue_id = mlx5hws_bwc_get_queue_id(ctx, bwc_queue_idx);
+	rule_attr->flow_source = flow_source;
+}
+
+struct mlx5hws_bwc_rule *
+mlx5hws_bwc_rule_alloc(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	struct mlx5hws_bwc_rule *bwc_rule;
+
+	bwc_rule = kzalloc(sizeof(*bwc_rule), GFP_KERNEL);
+	if (unlikely(!bwc_rule))
+		goto out_err;
+
+	bwc_rule->rule = kzalloc(sizeof(*bwc_rule->rule), GFP_KERNEL);
+	if (unlikely(!bwc_rule->rule))
+		goto free_rule;
+
+	bwc_rule->bwc_matcher = bwc_matcher;
+	return bwc_rule;
+
+free_rule:
+	kfree(bwc_rule);
+out_err:
+	return NULL;
+}
+
+void mlx5hws_bwc_rule_free(struct mlx5hws_bwc_rule *bwc_rule)
+{
+	if (likely(bwc_rule->rule))
+		kfree(bwc_rule->rule);
+	kfree(bwc_rule);
+}
+
+static void hws_bwc_rule_list_add(struct mlx5hws_bwc_rule *bwc_rule, u16 idx)
+{
+	struct mlx5hws_bwc_matcher *bwc_matcher = bwc_rule->bwc_matcher;
+
+	bwc_matcher->num_of_rules++;
+	bwc_rule->bwc_queue_idx = idx;
+	list_add(&bwc_rule->list_node, &bwc_matcher->rules[idx]);
+}
+
+static void hws_bwc_rule_list_remove(struct mlx5hws_bwc_rule *bwc_rule)
+{
+	struct mlx5hws_bwc_matcher *bwc_matcher = bwc_rule->bwc_matcher;
+
+	bwc_matcher->num_of_rules--;
+	list_del_init(&bwc_rule->list_node);
+}
+
+static int
+hws_bwc_rule_destroy_hws_async(struct mlx5hws_bwc_rule *bwc_rule,
+			       struct mlx5hws_rule_attr *attr)
+{
+	return mlx5hws_rule_destroy(bwc_rule->rule, attr);
+}
+
+static int
+hws_bwc_rule_destroy_hws_sync(struct mlx5hws_bwc_rule *bwc_rule,
+			      struct mlx5hws_rule_attr *rule_attr)
+{
+	struct mlx5hws_context *ctx = bwc_rule->bwc_matcher->matcher->tbl->ctx;
+	struct mlx5hws_flow_op_result completion;
+	int ret;
+
+	ret = hws_bwc_rule_destroy_hws_async(bwc_rule, rule_attr);
+	if (unlikely(ret))
+		return ret;
+
+	do {
+		ret = mlx5hws_send_queue_poll(ctx, rule_attr->queue_id, &completion, 1);
+	} while (ret != 1);
+
+	if (unlikely(completion.status != MLX5HWS_FLOW_OP_SUCCESS ||
+		     (bwc_rule->rule->status != MLX5HWS_RULE_STATUS_DELETED &&
+		      bwc_rule->rule->status != MLX5HWS_RULE_STATUS_DELETING))) {
+		mlx5hws_err(ctx, "Failed destroying BWC rule: completion %d, rule status %d\n",
+			    completion.status, bwc_rule->rule->status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int mlx5hws_bwc_rule_destroy_simple(struct mlx5hws_bwc_rule *bwc_rule)
+{
+	struct mlx5hws_bwc_matcher *bwc_matcher = bwc_rule->bwc_matcher;
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+	u16 idx = bwc_rule->bwc_queue_idx;
+	struct mlx5hws_rule_attr attr;
+	struct mutex *queue_lock; /* Protect the queue */
+	int ret;
+
+	mlx5hws_bwc_rule_fill_attr(bwc_matcher, idx, 0, &attr);
+
+	queue_lock = hws_bwc_get_queue_lock(ctx, idx);
+
+	mutex_lock(queue_lock);
+
+	ret = hws_bwc_rule_destroy_hws_sync(bwc_rule, &attr);
+	hws_bwc_rule_list_remove(bwc_rule);
+
+	mutex_unlock(queue_lock);
+
+	return ret;
+}
+
+int mlx5hws_bwc_rule_destroy(struct mlx5hws_bwc_rule *bwc_rule)
+{
+	int ret;
+
+	ret = mlx5hws_bwc_rule_destroy_simple(bwc_rule);
+
+	mlx5hws_bwc_rule_free(bwc_rule);
+	return ret;
+}
+
+static int
+hws_bwc_rule_create_async(struct mlx5hws_bwc_rule *bwc_rule,
+			  u32 *match_param,
+			  u8 at_idx,
+			  struct mlx5hws_rule_action rule_actions[],
+			  struct mlx5hws_rule_attr *rule_attr)
+{
+	return mlx5hws_rule_create(bwc_rule->bwc_matcher->matcher,
+				   0, /* only one match template supported */
+				   match_param,
+				   at_idx,
+				   rule_actions,
+				   rule_attr,
+				   bwc_rule->rule);
+}
+
+static int
+hws_bwc_rule_create_sync(struct mlx5hws_bwc_rule *bwc_rule,
+			 u32 *match_param,
+			 u8 at_idx,
+			 struct mlx5hws_rule_action rule_actions[],
+			 struct mlx5hws_rule_attr *rule_attr)
+
+{
+	struct mlx5hws_context *ctx = bwc_rule->bwc_matcher->matcher->tbl->ctx;
+	u32 expected_completions = 1;
+	int ret;
+
+	ret = hws_bwc_rule_create_async(bwc_rule, match_param,
+					at_idx, rule_actions,
+					rule_attr);
+	if (unlikely(ret))
+		return ret;
+
+	ret = hws_bwc_queue_poll(ctx, rule_attr->queue_id, &expected_completions, true);
+
+	return ret;
+}
+
+static int
+hws_bwc_rule_update_sync(struct mlx5hws_bwc_rule *bwc_rule,
+			 u8 at_idx,
+			 struct mlx5hws_rule_action rule_actions[],
+			 struct mlx5hws_rule_attr *rule_attr)
+{
+	struct mlx5hws_bwc_matcher *bwc_matcher = bwc_rule->bwc_matcher;
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+	u32 expected_completions = 1;
+	int ret;
+
+	ret = mlx5hws_rule_action_update(bwc_rule->rule,
+					 at_idx,
+					 rule_actions,
+					 rule_attr);
+	if (unlikely(ret))
+		return ret;
+
+	ret = hws_bwc_queue_poll(ctx, rule_attr->queue_id, &expected_completions, true);
+	if (unlikely(ret))
+		mlx5hws_err(ctx, "Failed updating BWC rule (%d)\n", ret);
+
+	return ret;
+}
+
+static bool
+hws_bwc_matcher_size_maxed_out(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	struct mlx5hws_cmd_query_caps *caps = bwc_matcher->matcher->tbl->ctx->caps;
+
+	return bwc_matcher->size_log + MLX5HWS_MATCHER_ASSURED_MAIN_TBL_DEPTH >=
+	       caps->ste_alloc_log_max - 1;
+}
+
+static bool
+hws_bwc_matcher_rehash_size_needed(struct mlx5hws_bwc_matcher *bwc_matcher,
+				   u32 num_of_rules)
+{
+	if (unlikely(hws_bwc_matcher_size_maxed_out(bwc_matcher)))
+		return false;
+
+	if (unlikely((num_of_rules * 100 / MLX5HWS_BWC_MATCHER_REHASH_PERCENT_TH) >=
+		     (1UL << bwc_matcher->size_log)))
+		return true;
+
+	return false;
+}
+
+static void
+hws_bwc_rule_actions_to_action_types(struct mlx5hws_rule_action rule_actions[],
+				     enum mlx5hws_action_type action_types[])
+{
+	int i = 0;
+
+	for (i = 0;
+	     rule_actions[i].action && (rule_actions[i].action->type != MLX5HWS_ACTION_TYP_LAST);
+	     i++) {
+		action_types[i] = (enum mlx5hws_action_type)rule_actions[i].action->type;
+	}
+
+	action_types[i] = MLX5HWS_ACTION_TYP_LAST;
+}
+
+static int
+hws_bwc_matcher_extend_at(struct mlx5hws_bwc_matcher *bwc_matcher,
+			  struct mlx5hws_rule_action rule_actions[])
+{
+	enum mlx5hws_action_type action_types[MLX5HWS_BWC_MAX_ACTS];
+
+	hws_bwc_rule_actions_to_action_types(rule_actions, action_types);
+
+	bwc_matcher->at[bwc_matcher->num_of_at] =
+		mlx5hws_action_template_create(action_types);
+
+	if (unlikely(!bwc_matcher->at[bwc_matcher->num_of_at]))
+		return -ENOMEM;
+
+	bwc_matcher->num_of_at++;
+	return 0;
+}
+
+static int
+hws_bwc_matcher_extend_size(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+	struct mlx5hws_cmd_query_caps *caps = ctx->caps;
+
+	if (unlikely(hws_bwc_matcher_size_maxed_out(bwc_matcher))) {
+		mlx5hws_err(ctx, "Can't resize matcher: depth exceeds limit %d\n",
+			    caps->rtc_log_depth_max);
+		return -ENOMEM;
+	}
+
+	bwc_matcher->size_log =
+		min(bwc_matcher->size_log + MLX5HWS_BWC_MATCHER_SIZE_LOG_STEP,
+		    caps->ste_alloc_log_max - MLX5HWS_MATCHER_ASSURED_MAIN_TBL_DEPTH);
+
+	return 0;
+}
+
+static int
+hws_bwc_matcher_find_at(struct mlx5hws_bwc_matcher *bwc_matcher,
+			struct mlx5hws_rule_action rule_actions[])
+{
+	enum mlx5hws_action_type *action_type_arr;
+	int i, j;
+
+	/* start from index 1 - first action template is a dummy */
+	for (i = 1; i < bwc_matcher->num_of_at; i++) {
+		j = 0;
+		action_type_arr = bwc_matcher->at[i]->action_type_arr;
+
+		while (rule_actions[j].action &&
+		       rule_actions[j].action->type != MLX5HWS_ACTION_TYP_LAST) {
+			if (action_type_arr[j] != rule_actions[j].action->type)
+				break;
+			j++;
+		}
+
+		if (action_type_arr[j] == MLX5HWS_ACTION_TYP_LAST &&
+		    (!rule_actions[j].action ||
+		     rule_actions[j].action->type == MLX5HWS_ACTION_TYP_LAST))
+			return i;
+	}
+
+	return -1;
+}
+
+static int hws_bwc_matcher_move_all_simple(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+	u16 bwc_queues = mlx5hws_bwc_queues(ctx);
+	struct mlx5hws_bwc_rule **bwc_rules;
+	struct mlx5hws_rule_attr rule_attr;
+	u32 *pending_rules;
+	int i, j, ret = 0;
+	bool all_done;
+	u16 burst_th;
+
+	mlx5hws_bwc_rule_fill_attr(bwc_matcher, 0, 0, &rule_attr);
+
+	pending_rules = kcalloc(bwc_queues, sizeof(*pending_rules), GFP_KERNEL);
+	if (!pending_rules)
+		return -ENOMEM;
+
+	bwc_rules = kcalloc(bwc_queues, sizeof(*bwc_rules), GFP_KERNEL);
+	if (!bwc_rules) {
+		ret = -ENOMEM;
+		goto free_pending_rules;
+	}
+
+	for (i = 0; i < bwc_queues; i++) {
+		if (list_empty(&bwc_matcher->rules[i]))
+			bwc_rules[i] = NULL;
+		else
+			bwc_rules[i] = list_first_entry(&bwc_matcher->rules[i],
+							struct mlx5hws_bwc_rule,
+							list_node);
+	}
+
+	do {
+		all_done = true;
+
+		for (i = 0; i < bwc_queues; i++) {
+			rule_attr.queue_id = mlx5hws_bwc_get_queue_id(ctx, i);
+			burst_th = hws_bwc_get_burst_th(ctx, rule_attr.queue_id);
+
+			for (j = 0; j < burst_th && bwc_rules[i]; j++) {
+				rule_attr.burst = !!((j + 1) % burst_th);
+				ret = mlx5hws_matcher_resize_rule_move(bwc_matcher->matcher,
+								       bwc_rules[i]->rule,
+								       &rule_attr);
+				if (unlikely(ret)) {
+					mlx5hws_err(ctx,
+						    "Moving BWC rule failed during rehash (%d)\n",
+						    ret);
+					goto free_bwc_rules;
+				}
+
+				all_done = false;
+				pending_rules[i]++;
+				bwc_rules[i] = list_is_last(&bwc_rules[i]->list_node,
+							    &bwc_matcher->rules[i]) ?
+					       NULL : list_next_entry(bwc_rules[i], list_node);
+
+				ret = hws_bwc_queue_poll(ctx, rule_attr.queue_id,
+							 &pending_rules[i], false);
+				if (unlikely(ret))
+					goto free_bwc_rules;
+			}
+		}
+	} while (!all_done);
+
+	/* drain all the bwc queues */
+	for (i = 0; i < bwc_queues; i++) {
+		if (pending_rules[i]) {
+			u16 queue_id = mlx5hws_bwc_get_queue_id(ctx, i);
+
+			mlx5hws_send_engine_flush_queue(&ctx->send_queue[queue_id]);
+			ret = hws_bwc_queue_poll(ctx, queue_id,
+						 &pending_rules[i], true);
+			if (unlikely(ret))
+				goto free_bwc_rules;
+		}
+	}
+
+free_bwc_rules:
+	kfree(bwc_rules);
+free_pending_rules:
+	kfree(pending_rules);
+
+	return ret;
+}
+
+static int hws_bwc_matcher_move_all(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	return hws_bwc_matcher_move_all_simple(bwc_matcher);
+}
+
+static int hws_bwc_matcher_move(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+	struct mlx5hws_matcher_attr matcher_attr = {0};
+	struct mlx5hws_matcher *old_matcher;
+	struct mlx5hws_matcher *new_matcher;
+	int ret;
+
+	hws_bwc_matcher_init_attr(&matcher_attr,
+				  bwc_matcher->priority,
+				  bwc_matcher->size_log);
+
+	old_matcher = bwc_matcher->matcher;
+	new_matcher = mlx5hws_matcher_create(old_matcher->tbl,
+					     &bwc_matcher->mt, 1,
+					     bwc_matcher->at,
+					     bwc_matcher->num_of_at,
+					     &matcher_attr);
+	if (!new_matcher) {
+		mlx5hws_err(ctx, "Rehash error: matcher creation failed\n");
+		return -ENOMEM;
+	}
+
+	ret = mlx5hws_matcher_resize_set_target(old_matcher, new_matcher);
+	if (ret) {
+		mlx5hws_err(ctx, "Rehash error: failed setting resize target\n");
+		return ret;
+	}
+
+	ret = hws_bwc_matcher_move_all(bwc_matcher);
+	if (ret) {
+		mlx5hws_err(ctx, "Rehash error: moving rules failed\n");
+		return -ENOMEM;
+	}
+
+	bwc_matcher->matcher = new_matcher;
+	mlx5hws_matcher_destroy(old_matcher);
+
+	return 0;
+}
+
+static int
+hws_bwc_matcher_rehash_size(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	u32 num_of_rules;
+	int ret;
+
+	/* If the current matcher size is already at its max size, we can't
+	 * do the rehash. Skip it and try adding the rule again - perhaps
+	 * there was some change.
+	 */
+	if (hws_bwc_matcher_size_maxed_out(bwc_matcher))
+		return 0;
+
+	/* It is possible that other rule has already performed rehash.
+	 * Need to check again if we really need rehash.
+	 * If the reason for rehash was size, but not any more - skip rehash.
+	 */
+	num_of_rules = __atomic_load_n(&bwc_matcher->num_of_rules, __ATOMIC_RELAXED);
+	if (!hws_bwc_matcher_rehash_size_needed(bwc_matcher, num_of_rules))
+		return 0;
+
+	/* Now we're done all the checking - do the rehash:
+	 *  - extend match RTC size
+	 *  - create new matcher
+	 *  - move all the rules to the new matcher
+	 *  - destroy the old matcher
+	 */
+
+	ret = hws_bwc_matcher_extend_size(bwc_matcher);
+	if (ret)
+		return ret;
+
+	return hws_bwc_matcher_move(bwc_matcher);
+}
+
+static int
+hws_bwc_matcher_rehash_at(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	/* Rehash by action template doesn't require any additional checking.
+	 * The bwc_matcher already contains the new action template.
+	 * Just do the usual rehash:
+	 *  - create new matcher
+	 *  - move all the rules to the new matcher
+	 *  - destroy the old matcher
+	 */
+	return hws_bwc_matcher_move(bwc_matcher);
+}
+
+int mlx5hws_bwc_rule_create_simple(struct mlx5hws_bwc_rule *bwc_rule,
+				   u32 *match_param,
+				   struct mlx5hws_rule_action rule_actions[],
+				   u32 flow_source,
+				   u16 bwc_queue_idx)
+{
+	struct mlx5hws_bwc_matcher *bwc_matcher = bwc_rule->bwc_matcher;
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+	struct mlx5hws_rule_attr rule_attr;
+	struct mutex *queue_lock; /* Protect the queue */
+	u32 num_of_rules;
+	int ret = 0;
+	int at_idx;
+
+	mlx5hws_bwc_rule_fill_attr(bwc_matcher, bwc_queue_idx, flow_source, &rule_attr);
+
+	queue_lock = hws_bwc_get_queue_lock(ctx, bwc_queue_idx);
+
+	mutex_lock(queue_lock);
+
+	/* check if rehash needed due to missing action template */
+	at_idx = hws_bwc_matcher_find_at(bwc_matcher, rule_actions);
+	if (unlikely(at_idx < 0)) {
+		/* we need to extend BWC matcher action templates array */
+		mutex_unlock(queue_lock);
+		hws_bwc_lock_all_queues(ctx);
+
+		ret = hws_bwc_matcher_extend_at(bwc_matcher, rule_actions);
+		if (unlikely(ret)) {
+			hws_bwc_unlock_all_queues(ctx);
+			return ret;
+		}
+
+		/* action templates array was extended, we need the last idx */
+		at_idx = bwc_matcher->num_of_at - 1;
+
+		ret = mlx5hws_matcher_attach_at(bwc_matcher->matcher,
+						bwc_matcher->at[at_idx]);
+		if (unlikely(ret)) {
+			/* Action template attach failed, possibly due to
+			 * requiring more action STEs.
+			 * Need to attempt creating new matcher with all
+			 * the action templates, including the new one.
+			 */
+			ret = hws_bwc_matcher_rehash_at(bwc_matcher);
+			if (unlikely(ret)) {
+				mlx5hws_action_template_destroy(bwc_matcher->at[at_idx]);
+				bwc_matcher->at[at_idx] = NULL;
+				bwc_matcher->num_of_at--;
+
+				hws_bwc_unlock_all_queues(ctx);
+
+				mlx5hws_err(ctx,
+					    "BWC rule insertion: rehash AT failed (%d)\n", ret);
+				return ret;
+			}
+		}
+
+		hws_bwc_unlock_all_queues(ctx);
+		mutex_lock(queue_lock);
+	}
+
+	/* check if number of rules require rehash */
+	num_of_rules = bwc_matcher->num_of_rules;
+
+	if (unlikely(hws_bwc_matcher_rehash_size_needed(bwc_matcher, num_of_rules))) {
+		mutex_unlock(queue_lock);
+
+		hws_bwc_lock_all_queues(ctx);
+		ret = hws_bwc_matcher_rehash_size(bwc_matcher);
+		hws_bwc_unlock_all_queues(ctx);
+
+		if (ret) {
+			mlx5hws_err(ctx, "BWC rule insertion: rehash size [%d -> %d] failed (%d)\n",
+				    bwc_matcher->size_log - MLX5HWS_BWC_MATCHER_SIZE_LOG_STEP,
+				    bwc_matcher->size_log,
+				    ret);
+			return ret;
+		}
+
+		mutex_lock(queue_lock);
+	}
+
+	ret = hws_bwc_rule_create_sync(bwc_rule,
+				       match_param,
+				       at_idx,
+				       rule_actions,
+				       &rule_attr);
+	if (likely(!ret)) {
+		hws_bwc_rule_list_add(bwc_rule, bwc_queue_idx);
+		mutex_unlock(queue_lock);
+		return 0; /* rule inserted successfully */
+	}
+
+	/* At this point the rule wasn't added.
+	 * It could be because there was collision, or some other problem.
+	 * If we don't dive deeper than API, the only thing we know is that
+	 * the status of completion is RTE_FLOW_OP_ERROR.
+	 * Try rehash by size and insert rule again - last chance.
+	 */
+
+	mutex_unlock(queue_lock);
+
+	hws_bwc_lock_all_queues(ctx);
+	ret = hws_bwc_matcher_rehash_size(bwc_matcher);
+	hws_bwc_unlock_all_queues(ctx);
+
+	if (ret) {
+		mlx5hws_err(ctx, "BWC rule insertion: rehash failed (%d)\n", ret);
+		return ret;
+	}
+
+	/* Rehash done, but we still have that pesky rule to add */
+	mutex_lock(queue_lock);
+
+	ret = hws_bwc_rule_create_sync(bwc_rule,
+				       match_param,
+				       at_idx,
+				       rule_actions,
+				       &rule_attr);
+
+	if (unlikely(ret)) {
+		mutex_unlock(queue_lock);
+		mlx5hws_err(ctx, "BWC rule insertion failed (%d)\n", ret);
+		return ret;
+	}
+
+	hws_bwc_rule_list_add(bwc_rule, bwc_queue_idx);
+	mutex_unlock(queue_lock);
+
+	return 0;
+}
+
+struct mlx5hws_bwc_rule *
+mlx5hws_bwc_rule_create(struct mlx5hws_bwc_matcher *bwc_matcher,
+			struct mlx5hws_match_parameters *params,
+			u32 flow_source,
+			struct mlx5hws_rule_action rule_actions[])
+{
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+	struct mlx5hws_bwc_rule *bwc_rule;
+	u16 bwc_queue_idx;
+	int ret;
+
+	if (unlikely(!mlx5hws_context_bwc_supported(ctx))) {
+		mlx5hws_err(ctx, "BWC rule: Context created w/o BWC API compatibility\n");
+		return NULL;
+	}
+
+	bwc_rule = mlx5hws_bwc_rule_alloc(bwc_matcher);
+	if (unlikely(!bwc_rule))
+		return NULL;
+
+	bwc_queue_idx = hws_bwc_gen_queue_idx(ctx);
+
+	ret = mlx5hws_bwc_rule_create_simple(bwc_rule,
+					     params->match_buf,
+					     rule_actions,
+					     flow_source,
+					     bwc_queue_idx);
+	if (unlikely(ret)) {
+		mlx5hws_bwc_rule_free(bwc_rule);
+		return NULL;
+	}
+
+	return bwc_rule;
+}
+
+static int
+hws_bwc_rule_action_update(struct mlx5hws_bwc_rule *bwc_rule,
+			   struct mlx5hws_rule_action rule_actions[])
+{
+	struct mlx5hws_bwc_matcher *bwc_matcher = bwc_rule->bwc_matcher;
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+	struct mlx5hws_rule_attr rule_attr;
+	struct mutex *queue_lock; /* Protect the queue */
+	int at_idx, ret;
+	u16 idx;
+
+	idx = bwc_rule->bwc_queue_idx;
+
+	mlx5hws_bwc_rule_fill_attr(bwc_matcher, idx, 0, &rule_attr);
+	queue_lock = hws_bwc_get_queue_lock(ctx, idx);
+
+	mutex_lock(queue_lock);
+
+	/* check if rehash needed due to missing action template */
+	at_idx = hws_bwc_matcher_find_at(bwc_matcher, rule_actions);
+	if (unlikely(at_idx < 0)) {
+		/* we need to extend BWC matcher action templates array */
+		mutex_unlock(queue_lock);
+		hws_bwc_lock_all_queues(ctx);
+
+		/* check again - perhaps other thread already did extend_at */
+		at_idx = hws_bwc_matcher_find_at(bwc_matcher, rule_actions);
+		if (likely(at_idx < 0)) {
+			ret = hws_bwc_matcher_extend_at(bwc_matcher, rule_actions);
+			if (unlikely(ret)) {
+				hws_bwc_unlock_all_queues(ctx);
+				mlx5hws_err(ctx, "BWC rule update: failed extending AT (%d)", ret);
+				return -EINVAL;
+			}
+
+			/* action templates array was extended, we need the last idx */
+			at_idx = bwc_matcher->num_of_at - 1;
+
+			ret = mlx5hws_matcher_attach_at(bwc_matcher->matcher,
+							bwc_matcher->at[at_idx]);
+			if (unlikely(ret)) {
+				/* Action template attach failed, possibly due to
+				 * requiring more action STEs.
+				 * Need to attempt creating new matcher with all
+				 * the action templates, including the new one.
+				 */
+				ret = hws_bwc_matcher_rehash_at(bwc_matcher);
+				if (unlikely(ret)) {
+					mlx5hws_action_template_destroy(bwc_matcher->at[at_idx]);
+					bwc_matcher->at[at_idx] = NULL;
+					bwc_matcher->num_of_at--;
+
+					hws_bwc_unlock_all_queues(ctx);
+
+					mlx5hws_err(ctx,
+						    "BWC rule update: rehash AT failed (%d)\n",
+						    ret);
+					return ret;
+				}
+			}
+		}
+
+		hws_bwc_unlock_all_queues(ctx);
+		mutex_lock(queue_lock);
+	}
+
+	ret = hws_bwc_rule_update_sync(bwc_rule,
+				       at_idx,
+				       rule_actions,
+				       &rule_attr);
+	mutex_unlock(queue_lock);
+
+	if (unlikely(ret))
+		mlx5hws_err(ctx, "BWC rule: update failed (%d)\n", ret);
+
+	return ret;
+}
+
+int mlx5hws_bwc_rule_action_update(struct mlx5hws_bwc_rule *bwc_rule,
+				   struct mlx5hws_rule_action rule_actions[])
+{
+	struct mlx5hws_bwc_matcher *bwc_matcher = bwc_rule->bwc_matcher;
+	struct mlx5hws_context *ctx = bwc_matcher->matcher->tbl->ctx;
+
+	if (unlikely(!mlx5hws_context_bwc_supported(ctx))) {
+		mlx5hws_err(ctx, "BWC rule: Context created w/o BWC API compatibility\n");
+		return -EINVAL;
+	}
+
+	return hws_bwc_rule_action_update(bwc_rule, rule_actions);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc.h
new file mode 100644
index 0000000000000..4fe8c32d8fbe8
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
+
+#ifndef MLX5HWS_BWC_H_
+#define MLX5HWS_BWC_H_
+
+#define MLX5HWS_BWC_MATCHER_INIT_SIZE_LOG 1
+#define MLX5HWS_BWC_MATCHER_SIZE_LOG_STEP 1
+#define MLX5HWS_BWC_MATCHER_REHASH_PERCENT_TH 70
+#define MLX5HWS_BWC_MATCHER_REHASH_BURST_TH 32
+#define MLX5HWS_BWC_MATCHER_ATTACH_AT_NUM 255
+
+#define MLX5HWS_BWC_MAX_ACTS 16
+
+struct mlx5hws_bwc_matcher {
+	struct mlx5hws_matcher *matcher;
+	struct mlx5hws_match_template *mt;
+	struct mlx5hws_action_template *at[MLX5HWS_BWC_MATCHER_ATTACH_AT_NUM];
+	u8 num_of_at;
+	u16 priority;
+	u8 size_log;
+	u32 num_of_rules; /* atomically accessed */
+	struct list_head *rules;
+};
+
+struct mlx5hws_bwc_rule {
+	struct mlx5hws_bwc_matcher *bwc_matcher;
+	struct mlx5hws_rule *rule;
+	u16 bwc_queue_idx;
+	struct list_head list_node;
+};
+
+int
+mlx5hws_bwc_matcher_create_simple(struct mlx5hws_bwc_matcher *bwc_matcher,
+				  struct mlx5hws_table *table,
+				  u32 priority,
+				  u8 match_criteria_enable,
+				  struct mlx5hws_match_parameters *mask,
+				  enum mlx5hws_action_type action_types[]);
+
+int mlx5hws_bwc_matcher_destroy_simple(struct mlx5hws_bwc_matcher *bwc_matcher);
+
+struct mlx5hws_bwc_rule *mlx5hws_bwc_rule_alloc(struct mlx5hws_bwc_matcher *bwc_matcher);
+
+void mlx5hws_bwc_rule_free(struct mlx5hws_bwc_rule *bwc_rule);
+
+int mlx5hws_bwc_rule_create_simple(struct mlx5hws_bwc_rule *bwc_rule,
+				   u32 *match_param,
+				   struct mlx5hws_rule_action rule_actions[],
+				   u32 flow_source,
+				   u16 bwc_queue_idx);
+
+int mlx5hws_bwc_rule_destroy_simple(struct mlx5hws_bwc_rule *bwc_rule);
+
+void mlx5hws_bwc_rule_fill_attr(struct mlx5hws_bwc_matcher *bwc_matcher,
+				u16 bwc_queue_idx,
+				u32 flow_source,
+				struct mlx5hws_rule_attr *rule_attr);
+
+static inline u16 mlx5hws_bwc_queues(struct mlx5hws_context *ctx)
+{
+	/* Besides the control queue, half of the queues are
+	 * reguler HWS queues, and the other half are BWC queues.
+	 */
+	return (ctx->queues - 1) / 2;
+}
+
+static inline u16 mlx5hws_bwc_get_queue_id(struct mlx5hws_context *ctx, u16 idx)
+{
+	return idx + mlx5hws_bwc_queues(ctx);
+}
+
+#endif /* MLX5HWS_BWC_H_ */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc_complex.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc_complex.c
new file mode 100644
index 0000000000000..bb563f50ef09a
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc_complex.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
+
+#include "mlx5hws_internal.h"
+
+bool mlx5hws_bwc_match_params_is_complex(struct mlx5hws_context *ctx,
+					 u8 match_criteria_enable,
+					 struct mlx5hws_match_parameters *mask)
+{
+	struct mlx5hws_definer match_layout = {0};
+	struct mlx5hws_match_template *mt;
+	bool is_complex = false;
+	int ret;
+
+	if (!match_criteria_enable)
+		return false; /* empty matcher */
+
+	mt = mlx5hws_match_template_create(ctx,
+					   mask->match_buf,
+					   mask->match_sz,
+					   match_criteria_enable);
+	if (!mt) {
+		mlx5hws_err(ctx, "BWC: failed creating match template\n");
+		return false;
+	}
+
+	ret = mlx5hws_definer_calc_layout(ctx, mt, &match_layout);
+	if (ret) {
+		/* The only case that we're interested in is E2BIG,
+		 * which means that the match parameters need to be
+		 * split into complex martcher.
+		 * For all other cases (good or bad) - just return true
+		 * and let the usual match creation path handle it,
+		 * both for good and bad flows.
+		 */
+		if (ret == E2BIG) {
+			is_complex = true;
+			mlx5hws_dbg(ctx, "Matcher definer layout: need complex matcher\n");
+		} else {
+			mlx5hws_err(ctx, "Failed to calculate matcher definer layout\n");
+		}
+	}
+
+	mlx5hws_match_template_destroy(mt);
+
+	return is_complex;
+}
+
+int mlx5hws_bwc_matcher_create_complex(struct mlx5hws_bwc_matcher *bwc_matcher,
+				       struct mlx5hws_table *table,
+				       u32 priority,
+				       u8 match_criteria_enable,
+				       struct mlx5hws_match_parameters *mask)
+{
+	mlx5hws_err(table->ctx, "Complex matcher is not supported yet\n");
+	return -EOPNOTSUPP;
+}
+
+void
+mlx5hws_bwc_matcher_destroy_complex(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	/* nothing to do here */
+}
+
+int mlx5hws_bwc_rule_create_complex(struct mlx5hws_bwc_rule *bwc_rule,
+				    struct mlx5hws_match_parameters *params,
+				    u32 flow_source,
+				    struct mlx5hws_rule_action rule_actions[],
+				    u16 bwc_queue_idx)
+{
+	mlx5hws_err(bwc_rule->bwc_matcher->matcher->tbl->ctx,
+		    "Complex rule is not supported yet\n");
+	return -EOPNOTSUPP;
+}
+
+int mlx5hws_bwc_rule_destroy_complex(struct mlx5hws_bwc_rule *bwc_rule)
+{
+	return 0;
+}
+
+int mlx5hws_bwc_matcher_move_all_complex(struct mlx5hws_bwc_matcher *bwc_matcher)
+{
+	mlx5hws_err(bwc_matcher->matcher->tbl->ctx,
+		    "Moving complex rule is not supported yet\n");
+	return -EOPNOTSUPP;
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc_complex.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc_complex.h
new file mode 100644
index 0000000000000..068ee81186098
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_bwc_complex.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
+
+#ifndef MLX5HWS_BWC_COMPLEX_H_
+#define MLX5HWS_BWC_COMPLEX_H_
+
+bool mlx5hws_bwc_match_params_is_complex(struct mlx5hws_context *ctx,
+					 u8 match_criteria_enable,
+					 struct mlx5hws_match_parameters *mask);
+
+int mlx5hws_bwc_matcher_create_complex(struct mlx5hws_bwc_matcher *bwc_matcher,
+				       struct mlx5hws_table *table,
+				       u32 priority,
+				       u8 match_criteria_enable,
+				       struct mlx5hws_match_parameters *mask);
+
+void mlx5hws_bwc_matcher_destroy_complex(struct mlx5hws_bwc_matcher *bwc_matcher);
+
+int mlx5hws_bwc_matcher_move_all_complex(struct mlx5hws_bwc_matcher *bwc_matcher);
+
+int mlx5hws_bwc_rule_create_complex(struct mlx5hws_bwc_rule *bwc_rule,
+				    struct mlx5hws_match_parameters *params,
+				    u32 flow_source,
+				    struct mlx5hws_rule_action rule_actions[],
+				    u16 bwc_queue_idx);
+
+int mlx5hws_bwc_rule_destroy_complex(struct mlx5hws_bwc_rule *bwc_rule);
+
+#endif /* MLX5HWS_BWC_COMPLEX_H_ */