diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index db2cfcd21d43..01a967e717e7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -204,13 +204,6 @@ struct mlx5e_umr_wqe {
 
 extern const char mlx5e_self_tests[][ETH_GSTRING_LEN];
 
-static const char mlx5e_priv_flags[][ETH_GSTRING_LEN] = {
-	"rx_cqe_moder",
-	"tx_cqe_moder",
-	"rx_cqe_compress",
-	"rx_striding_rq",
-};
-
 enum mlx5e_priv_flag {
 	MLX5E_PFLAG_RX_CQE_BASED_MODER = (1 << 0),
 	MLX5E_PFLAG_TX_CQE_BASED_MODER = (1 << 1),
@@ -905,6 +898,12 @@ void mlx5e_destroy_mdev_resources(struct mlx5_core_dev *mdev);
 int mlx5e_refresh_tirs(struct mlx5e_priv *priv, bool enable_uc_lb);
 
 /* common netdev helpers */
+void mlx5e_create_q_counters(struct mlx5e_priv *priv);
+void mlx5e_destroy_q_counters(struct mlx5e_priv *priv);
+int mlx5e_open_drop_rq(struct mlx5e_priv *priv,
+		       struct mlx5e_rq *drop_rq);
+void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq);
+
 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv);
 
 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 98dd3e0ada72..8cd338ceb237 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -135,6 +135,13 @@ void mlx5e_build_ptys2ethtool_map(void)
 				       ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT);
 }
 
+static const char mlx5e_priv_flags[][ETH_GSTRING_LEN] = {
+	"rx_cqe_moder",
+	"tx_cqe_moder",
+	"rx_cqe_compress",
+	"rx_striding_rq",
+};
+
 int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset)
 {
 	int i, num_stats = 0;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 5a7939e70190..d14c4051edd8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3049,8 +3049,8 @@ static int mlx5e_alloc_drop_cq(struct mlx5_core_dev *mdev,
 	return mlx5e_alloc_cq_common(mdev, param, cq);
 }
 
-static int mlx5e_open_drop_rq(struct mlx5e_priv *priv,
-			      struct mlx5e_rq *drop_rq)
+int mlx5e_open_drop_rq(struct mlx5e_priv *priv,
+		       struct mlx5e_rq *drop_rq)
 {
 	struct mlx5_core_dev *mdev = priv->mdev;
 	struct mlx5e_cq_param cq_param = {};
@@ -3094,7 +3094,7 @@ err_free_cq:
 	return err;
 }
 
-static void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq)
+void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq)
 {
 	mlx5e_destroy_rq(drop_rq);
 	mlx5e_free_rq(drop_rq);
@@ -4726,7 +4726,7 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 	mlx5e_tls_build_netdev(priv);
 }
 
-static void mlx5e_create_q_counters(struct mlx5e_priv *priv)
+void mlx5e_create_q_counters(struct mlx5e_priv *priv)
 {
 	struct mlx5_core_dev *mdev = priv->mdev;
 	int err;
@@ -4744,7 +4744,7 @@ static void mlx5e_create_q_counters(struct mlx5e_priv *priv)
 	}
 }
 
-static void mlx5e_destroy_q_counters(struct mlx5e_priv *priv)
+void mlx5e_destroy_q_counters(struct mlx5e_priv *priv)
 {
 	if (priv->q_counter)
 		mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter);
@@ -4783,9 +4783,17 @@ static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
 	struct mlx5_core_dev *mdev = priv->mdev;
 	int err;
 
+	mlx5e_create_q_counters(priv);
+
+	err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
+	if (err) {
+		mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
+		goto err_destroy_q_counters;
+	}
+
 	err = mlx5e_create_indirect_rqt(priv);
 	if (err)
-		return err;
+		goto err_close_drop_rq;
 
 	err = mlx5e_create_direct_rqts(priv);
 	if (err)
@@ -4821,6 +4829,10 @@ err_destroy_direct_rqts:
 	mlx5e_destroy_direct_rqts(priv);
 err_destroy_indirect_rqts:
 	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
+err_close_drop_rq:
+	mlx5e_close_drop_rq(&priv->drop_rq);
+err_destroy_q_counters:
+	mlx5e_destroy_q_counters(priv);
 	return err;
 }
 
@@ -4832,6 +4844,8 @@ static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv)
 	mlx5e_destroy_indirect_tirs(priv);
 	mlx5e_destroy_direct_rqts(priv);
 	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
+	mlx5e_close_drop_rq(&priv->drop_rq);
+	mlx5e_destroy_q_counters(priv);
 }
 
 static int mlx5e_init_nic_tx(struct mlx5e_priv *priv)
@@ -4975,7 +4989,6 @@ err_cleanup_nic:
 
 int mlx5e_attach_netdev(struct mlx5e_priv *priv)
 {
-	struct mlx5_core_dev *mdev = priv->mdev;
 	const struct mlx5e_profile *profile;
 	int err;
 
@@ -4986,28 +4999,16 @@ int mlx5e_attach_netdev(struct mlx5e_priv *priv)
 	if (err)
 		goto out;
 
-	mlx5e_create_q_counters(priv);
-
-	err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
-	if (err) {
-		mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
-		goto err_destroy_q_counters;
-	}
-
 	err = profile->init_rx(priv);
 	if (err)
-		goto err_close_drop_rq;
+		goto err_cleanup_tx;
 
 	if (profile->enable)
 		profile->enable(priv);
 
 	return 0;
 
-err_close_drop_rq:
-	mlx5e_close_drop_rq(&priv->drop_rq);
-
-err_destroy_q_counters:
-	mlx5e_destroy_q_counters(priv);
+err_cleanup_tx:
 	profile->cleanup_tx(priv);
 
 out:
@@ -5025,8 +5026,6 @@ void mlx5e_detach_netdev(struct mlx5e_priv *priv)
 	flush_workqueue(priv->wq);
 
 	profile->cleanup_rx(priv);
-	mlx5e_close_drop_rq(&priv->drop_rq);
-	mlx5e_destroy_q_counters(priv);
 	profile->cleanup_tx(priv);
 	cancel_delayed_work_sync(&priv->update_stats_work);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index c9cc9747d21d..f6eead24931f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -999,14 +999,21 @@ static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
 	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 	struct mlx5e_rep_priv *rpriv = priv->ppriv;
 	struct mlx5_eswitch_rep *rep = rpriv->rep;
+	struct mlx5_core_dev *mdev = priv->mdev;
 	struct mlx5_flow_handle *flow_rule;
 	int err;
 
 	mlx5e_init_l2_addr(priv);
 
+	err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
+	if (err) {
+		mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
+		return err;
+	}
+
 	err = mlx5e_create_direct_rqts(priv);
 	if (err)
-		return err;
+		goto err_close_drop_rq;
 
 	err = mlx5e_create_direct_tirs(priv);
 	if (err)
@@ -1027,6 +1034,8 @@ err_destroy_direct_tirs:
 	mlx5e_destroy_direct_tirs(priv);
 err_destroy_direct_rqts:
 	mlx5e_destroy_direct_rqts(priv);
+err_close_drop_rq:
+	mlx5e_close_drop_rq(&priv->drop_rq);
 	return err;
 }
 
@@ -1037,6 +1046,7 @@ static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
 	mlx5_del_flow_rules(rpriv->vport_rx_rule);
 	mlx5e_destroy_direct_tirs(priv);
 	mlx5e_destroy_direct_rqts(priv);
+	mlx5e_close_drop_rq(&priv->drop_rq);
 }
 
 static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 6a959e8b1f9d..424bc89184c6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -37,6 +37,7 @@
 #include <net/busy_poll.h>
 #include <net/ip6_checksum.h>
 #include <net/page_pool.h>
+#include <net/inet_ecn.h>
 #include "en.h"
 #include "en_tc.h"
 #include "eswitch.h"
@@ -690,12 +691,29 @@ static inline void mlx5e_skb_set_hash(struct mlx5_cqe64 *cqe,
 	skb_set_hash(skb, be32_to_cpu(cqe->rss_hash_result), ht);
 }
 
-static inline bool is_last_ethertype_ip(struct sk_buff *skb, int *network_depth)
+static inline bool is_last_ethertype_ip(struct sk_buff *skb, int *network_depth,
+					__be16 *proto)
 {
-	__be16 ethertype = ((struct ethhdr *)skb->data)->h_proto;
+	*proto = ((struct ethhdr *)skb->data)->h_proto;
+	*proto = __vlan_get_protocol(skb, *proto, network_depth);
+	return (*proto == htons(ETH_P_IP) || *proto == htons(ETH_P_IPV6));
+}
 
-	ethertype = __vlan_get_protocol(skb, ethertype, network_depth);
-	return (ethertype == htons(ETH_P_IP) || ethertype == htons(ETH_P_IPV6));
+static inline void mlx5e_enable_ecn(struct mlx5e_rq *rq, struct sk_buff *skb)
+{
+	int network_depth = 0;
+	__be16 proto;
+	void *ip;
+	int rc;
+
+	if (unlikely(!is_last_ethertype_ip(skb, &network_depth, &proto)))
+		return;
+
+	ip = skb->data + network_depth;
+	rc = ((proto == htons(ETH_P_IP)) ? IP_ECN_set_ce((struct iphdr *)ip) :
+					 IP6_ECN_set_ce(skb, (struct ipv6hdr *)ip));
+
+	rq->stats->ecn_mark += !!rc;
 }
 
 static __be32 mlx5e_get_fcs(struct sk_buff *skb)
@@ -737,6 +755,14 @@ static __be32 mlx5e_get_fcs(struct sk_buff *skb)
 	return fcs_bytes;
 }
 
+static u8 get_ip_proto(struct sk_buff *skb, __be16 proto)
+{
+	void *ip_p = skb->data + sizeof(struct ethhdr);
+
+	return (proto == htons(ETH_P_IP)) ? ((struct iphdr *)ip_p)->protocol :
+					    ((struct ipv6hdr *)ip_p)->nexthdr;
+}
+
 static inline void mlx5e_handle_csum(struct net_device *netdev,
 				     struct mlx5_cqe64 *cqe,
 				     struct mlx5e_rq *rq,
@@ -745,6 +771,7 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
 {
 	struct mlx5e_rq_stats *stats = rq->stats;
 	int network_depth = 0;
+	__be16 proto;
 
 	if (unlikely(!(netdev->features & NETIF_F_RXCSUM)))
 		goto csum_none;
@@ -755,7 +782,10 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
 		return;
 	}
 
-	if (likely(is_last_ethertype_ip(skb, &network_depth))) {
+	if (likely(is_last_ethertype_ip(skb, &network_depth, &proto))) {
+		if (unlikely(get_ip_proto(skb, proto) == IPPROTO_SCTP))
+			goto csum_unnecessary;
+
 		skb->ip_summed = CHECKSUM_COMPLETE;
 		skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
 		if (network_depth > ETH_HLEN)
@@ -773,6 +803,7 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
 		return;
 	}
 
+csum_unnecessary:
 	if (likely((cqe->hds_ip_ext & CQE_L3_OK) &&
 		   (cqe->hds_ip_ext & CQE_L4_OK))) {
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -790,6 +821,8 @@ csum_none:
 	stats->csum_none++;
 }
 
+#define MLX5E_CE_BIT_MASK 0x80
+
 static inline void mlx5e_build_rx_skb(struct mlx5_cqe64 *cqe,
 				      u32 cqe_bcnt,
 				      struct mlx5e_rq *rq,
@@ -834,6 +867,10 @@ static inline void mlx5e_build_rx_skb(struct mlx5_cqe64 *cqe,
 	skb->mark = be32_to_cpu(cqe->sop_drop_qpn) & MLX5E_TC_FLOW_ID_MASK;
 
 	mlx5e_handle_csum(netdev, cqe, rq, skb, !!lro_num_seg);
+	/* checking CE bit in cqe - MSB in ml_path field */
+	if (unlikely(cqe->ml_path & MLX5E_CE_BIT_MASK))
+		mlx5e_enable_ecn(rq, skb);
+
 	skb->protocol = eth_type_trans(skb, netdev);
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
index 6839481f7697..90c7607b1f44 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
@@ -53,6 +53,7 @@ static const struct counter_desc sw_stats_desc[] = {
 
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_lro_packets) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_lro_bytes) },
+	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_ecn_mark) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_removed_vlan_packets) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_csum_unnecessary) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_csum_none) },
@@ -144,6 +145,7 @@ void mlx5e_grp_sw_update_stats(struct mlx5e_priv *priv)
 		s->rx_bytes	+= rq_stats->bytes;
 		s->rx_lro_packets += rq_stats->lro_packets;
 		s->rx_lro_bytes	+= rq_stats->lro_bytes;
+		s->rx_ecn_mark	+= rq_stats->ecn_mark;
 		s->rx_removed_vlan_packets += rq_stats->removed_vlan_packets;
 		s->rx_csum_none	+= rq_stats->csum_none;
 		s->rx_csum_complete += rq_stats->csum_complete;
@@ -1144,6 +1146,7 @@ static const struct counter_desc rq_stats_desc[] = {
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, xdp_redirect) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, lro_packets) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, lro_bytes) },
+	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, ecn_mark) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, removed_vlan_packets) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, wqe_err) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, mpwqe_filler_cqes) },
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
index a4c035aedd46..a5fb3dc27f50 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -66,6 +66,7 @@ struct mlx5e_sw_stats {
 	u64 tx_nop;
 	u64 rx_lro_packets;
 	u64 rx_lro_bytes;
+	u64 rx_ecn_mark;
 	u64 rx_removed_vlan_packets;
 	u64 rx_csum_unnecessary;
 	u64 rx_csum_none;
@@ -184,6 +185,7 @@ struct mlx5e_rq_stats {
 	u64 csum_none;
 	u64 lro_packets;
 	u64 lro_bytes;
+	u64 ecn_mark;
 	u64 removed_vlan_packets;
 	u64 xdp_drop;
 	u64 xdp_redirect;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
index 32070e5d993d..a06f83c0c2b6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
@@ -36,6 +36,7 @@
 #include <linux/refcount.h>
 #include <linux/mlx5/fs.h>
 #include <linux/rhashtable.h>
+#include <linux/llist.h>
 
 enum fs_node_type {
 	FS_TYPE_NAMESPACE,
@@ -138,8 +139,9 @@ struct mlx5_fc_cache {
 };
 
 struct mlx5_fc {
-	struct rb_node node;
 	struct list_head list;
+	struct llist_node addlist;
+	struct llist_node dellist;
 
 	/* last{packets,bytes} members are used when calculating the delta since
 	 * last reading
@@ -148,7 +150,6 @@ struct mlx5_fc {
 	u64 lastbytes;
 
 	u32 id;
-	bool deleted;
 	bool aging;
 
 	struct mlx5_fc_cache cache ____cacheline_aligned_in_smp;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
index 58af6be13dfa..09206c4acd9a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
@@ -52,11 +52,13 @@
  * access to counter list:
  * - create (user context)
  *   - mlx5_fc_create() only adds to an addlist to be used by
- *     mlx5_fc_stats_query_work(). addlist is protected by a spinlock.
+ *     mlx5_fc_stats_query_work(). addlist is a lockless single linked list
+ *     that doesn't require any additional synchronization when adding single
+ *     node.
  *   - spawn thread to do the actual destroy
  *
  * - destroy (user context)
- *   - mark a counter as deleted
+ *   - add a counter to lockless dellist
  *   - spawn thread to do the actual del
  *
  * - dump (user context)
@@ -71,36 +73,43 @@
  *   elapsed, the thread will actually query the hardware.
  */
 
-static void mlx5_fc_stats_insert(struct rb_root *root, struct mlx5_fc *counter)
+static struct list_head *mlx5_fc_counters_lookup_next(struct mlx5_core_dev *dev,
+						      u32 id)
 {
-	struct rb_node **new = &root->rb_node;
-	struct rb_node *parent = NULL;
+	struct mlx5_fc_stats *fc_stats = &dev->priv.fc_stats;
+	unsigned long next_id = (unsigned long)id + 1;
+	struct mlx5_fc *counter;
 
-	while (*new) {
-		struct mlx5_fc *this = rb_entry(*new, struct mlx5_fc, node);
-		int result = counter->id - this->id;
+	rcu_read_lock();
+	/* skip counters that are in idr, but not yet in counters list */
+	while ((counter = idr_get_next_ul(&fc_stats->counters_idr,
+					  &next_id)) != NULL &&
+	       list_empty(&counter->list))
+		next_id++;
+	rcu_read_unlock();
 
-		parent = *new;
-		if (result < 0)
-			new = &((*new)->rb_left);
-		else
-			new = &((*new)->rb_right);
-	}
-
-	/* Add new node and rebalance tree. */
-	rb_link_node(&counter->node, parent, new);
-	rb_insert_color(&counter->node, root);
+	return counter ? &counter->list : &fc_stats->counters;
 }
 
-/* The function returns the last node that was queried so the caller
+static void mlx5_fc_stats_insert(struct mlx5_core_dev *dev,
+				 struct mlx5_fc *counter)
+{
+	struct list_head *next = mlx5_fc_counters_lookup_next(dev, counter->id);
+
+	list_add_tail(&counter->list, next);
+}
+
+/* The function returns the last counter that was queried so the caller
  * function can continue calling it till all counters are queried.
  */
-static struct rb_node *mlx5_fc_stats_query(struct mlx5_core_dev *dev,
+static struct mlx5_fc *mlx5_fc_stats_query(struct mlx5_core_dev *dev,
 					   struct mlx5_fc *first,
 					   u32 last_id)
 {
+	struct mlx5_fc_stats *fc_stats = &dev->priv.fc_stats;
+	struct mlx5_fc *counter = NULL;
 	struct mlx5_cmd_fc_bulk *b;
-	struct rb_node *node = NULL;
+	bool more = false;
 	u32 afirst_id;
 	int num;
 	int err;
@@ -130,14 +139,16 @@ static struct rb_node *mlx5_fc_stats_query(struct mlx5_core_dev *dev,
 		goto out;
 	}
 
-	for (node = &first->node; node; node = rb_next(node)) {
-		struct mlx5_fc *counter = rb_entry(node, struct mlx5_fc, node);
+	counter = first;
+	list_for_each_entry_from(counter, &fc_stats->counters, list) {
 		struct mlx5_fc_cache *c = &counter->cache;
 		u64 packets;
 		u64 bytes;
 
-		if (counter->id > last_id)
+		if (counter->id > last_id) {
+			more = true;
 			break;
+		}
 
 		mlx5_cmd_fc_bulk_get(dev, b,
 				     counter->id, &packets, &bytes);
@@ -153,7 +164,14 @@ static struct rb_node *mlx5_fc_stats_query(struct mlx5_core_dev *dev,
 out:
 	mlx5_cmd_fc_bulk_free(b);
 
-	return node;
+	return more ? counter : NULL;
+}
+
+static void mlx5_free_fc(struct mlx5_core_dev *dev,
+			 struct mlx5_fc *counter)
+{
+	mlx5_cmd_fc_free(dev, counter->id);
+	kfree(counter);
 }
 
 static void mlx5_fc_stats_work(struct work_struct *work)
@@ -161,52 +179,33 @@ static void mlx5_fc_stats_work(struct work_struct *work)
 	struct mlx5_core_dev *dev = container_of(work, struct mlx5_core_dev,
 						 priv.fc_stats.work.work);
 	struct mlx5_fc_stats *fc_stats = &dev->priv.fc_stats;
+	struct llist_node *tmplist = llist_del_all(&fc_stats->addlist);
+	struct mlx5_fc *counter = NULL, *last = NULL, *tmp;
 	unsigned long now = jiffies;
-	struct mlx5_fc *counter = NULL;
-	struct mlx5_fc *last = NULL;
-	struct rb_node *node;
-	LIST_HEAD(tmplist);
 
-	spin_lock(&fc_stats->addlist_lock);
-
-	list_splice_tail_init(&fc_stats->addlist, &tmplist);
-
-	if (!list_empty(&tmplist) || !RB_EMPTY_ROOT(&fc_stats->counters))
+	if (tmplist || !list_empty(&fc_stats->counters))
 		queue_delayed_work(fc_stats->wq, &fc_stats->work,
 				   fc_stats->sampling_interval);
 
-	spin_unlock(&fc_stats->addlist_lock);
+	llist_for_each_entry(counter, tmplist, addlist)
+		mlx5_fc_stats_insert(dev, counter);
 
-	list_for_each_entry(counter, &tmplist, list)
-		mlx5_fc_stats_insert(&fc_stats->counters, counter);
+	tmplist = llist_del_all(&fc_stats->dellist);
+	llist_for_each_entry_safe(counter, tmp, tmplist, dellist) {
+		list_del(&counter->list);
 
-	node = rb_first(&fc_stats->counters);
-	while (node) {
-		counter = rb_entry(node, struct mlx5_fc, node);
-
-		node = rb_next(node);
-
-		if (counter->deleted) {
-			rb_erase(&counter->node, &fc_stats->counters);
-
-			mlx5_cmd_fc_free(dev, counter->id);
-
-			kfree(counter);
-			continue;
-		}
-
-		last = counter;
+		mlx5_free_fc(dev, counter);
 	}
 
-	if (time_before(now, fc_stats->next_query) || !last)
+	if (time_before(now, fc_stats->next_query) ||
+	    list_empty(&fc_stats->counters))
 		return;
+	last = list_last_entry(&fc_stats->counters, struct mlx5_fc, list);
 
-	node = rb_first(&fc_stats->counters);
-	while (node) {
-		counter = rb_entry(node, struct mlx5_fc, node);
-
-		node = mlx5_fc_stats_query(dev, counter, last->id);
-	}
+	counter = list_first_entry(&fc_stats->counters, struct mlx5_fc,
+				   list);
+	while (counter)
+		counter = mlx5_fc_stats_query(dev, counter, last->id);
 
 	fc_stats->next_query = now + fc_stats->sampling_interval;
 }
@@ -220,24 +219,38 @@ struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging)
 	counter = kzalloc(sizeof(*counter), GFP_KERNEL);
 	if (!counter)
 		return ERR_PTR(-ENOMEM);
+	INIT_LIST_HEAD(&counter->list);
 
 	err = mlx5_cmd_fc_alloc(dev, &counter->id);
 	if (err)
 		goto err_out;
 
 	if (aging) {
+		u32 id = counter->id;
+
 		counter->cache.lastuse = jiffies;
 		counter->aging = true;
 
-		spin_lock(&fc_stats->addlist_lock);
-		list_add(&counter->list, &fc_stats->addlist);
-		spin_unlock(&fc_stats->addlist_lock);
+		idr_preload(GFP_KERNEL);
+		spin_lock(&fc_stats->counters_idr_lock);
+
+		err = idr_alloc_u32(&fc_stats->counters_idr, counter, &id, id,
+				    GFP_NOWAIT);
+
+		spin_unlock(&fc_stats->counters_idr_lock);
+		idr_preload_end();
+		if (err)
+			goto err_out_alloc;
+
+		llist_add(&counter->addlist, &fc_stats->addlist);
 
 		mod_delayed_work(fc_stats->wq, &fc_stats->work, 0);
 	}
 
 	return counter;
 
+err_out_alloc:
+	mlx5_cmd_fc_free(dev, counter->id);
 err_out:
 	kfree(counter);
 
@@ -253,13 +266,16 @@ void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter)
 		return;
 
 	if (counter->aging) {
-		counter->deleted = true;
+		spin_lock(&fc_stats->counters_idr_lock);
+		WARN_ON(!idr_remove(&fc_stats->counters_idr, counter->id));
+		spin_unlock(&fc_stats->counters_idr_lock);
+
+		llist_add(&counter->dellist, &fc_stats->dellist);
 		mod_delayed_work(fc_stats->wq, &fc_stats->work, 0);
 		return;
 	}
 
-	mlx5_cmd_fc_free(dev, counter->id);
-	kfree(counter);
+	mlx5_free_fc(dev, counter);
 }
 EXPORT_SYMBOL(mlx5_fc_destroy);
 
@@ -267,9 +283,11 @@ int mlx5_init_fc_stats(struct mlx5_core_dev *dev)
 {
 	struct mlx5_fc_stats *fc_stats = &dev->priv.fc_stats;
 
-	fc_stats->counters = RB_ROOT;
-	INIT_LIST_HEAD(&fc_stats->addlist);
-	spin_lock_init(&fc_stats->addlist_lock);
+	spin_lock_init(&fc_stats->counters_idr_lock);
+	idr_init(&fc_stats->counters_idr);
+	INIT_LIST_HEAD(&fc_stats->counters);
+	init_llist_head(&fc_stats->addlist);
+	init_llist_head(&fc_stats->dellist);
 
 	fc_stats->wq = create_singlethread_workqueue("mlx5_fc");
 	if (!fc_stats->wq)
@@ -284,34 +302,22 @@ int mlx5_init_fc_stats(struct mlx5_core_dev *dev)
 void mlx5_cleanup_fc_stats(struct mlx5_core_dev *dev)
 {
 	struct mlx5_fc_stats *fc_stats = &dev->priv.fc_stats;
+	struct llist_node *tmplist;
 	struct mlx5_fc *counter;
 	struct mlx5_fc *tmp;
-	struct rb_node *node;
 
 	cancel_delayed_work_sync(&dev->priv.fc_stats.work);
 	destroy_workqueue(dev->priv.fc_stats.wq);
 	dev->priv.fc_stats.wq = NULL;
 
-	list_for_each_entry_safe(counter, tmp, &fc_stats->addlist, list) {
-		list_del(&counter->list);
+	idr_destroy(&fc_stats->counters_idr);
 
-		mlx5_cmd_fc_free(dev, counter->id);
+	tmplist = llist_del_all(&fc_stats->addlist);
+	llist_for_each_entry_safe(counter, tmp, tmplist, addlist)
+		mlx5_free_fc(dev, counter);
 
-		kfree(counter);
-	}
-
-	node = rb_first(&fc_stats->counters);
-	while (node) {
-		counter = rb_entry(node, struct mlx5_fc, node);
-
-		node = rb_next(node);
-
-		rb_erase(&counter->node, &fc_stats->counters);
-
-		mlx5_cmd_fc_free(dev, counter->id);
-
-		kfree(counter);
-	}
+	list_for_each_entry_safe(counter, tmp, &fc_stats->counters, list)
+		mlx5_free_fc(dev, counter);
 }
 
 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index 3dd9f885ed8b..a825ed093efd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -349,11 +349,20 @@ static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
 
 static int mlx5i_init_rx(struct mlx5e_priv *priv)
 {
+	struct mlx5_core_dev *mdev = priv->mdev;
 	int err;
 
+	mlx5e_create_q_counters(priv);
+
+	err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
+	if (err) {
+		mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
+		goto err_destroy_q_counters;
+	}
+
 	err = mlx5e_create_indirect_rqt(priv);
 	if (err)
-		return err;
+		goto err_close_drop_rq;
 
 	err = mlx5e_create_direct_rqts(priv);
 	if (err)
@@ -381,6 +390,10 @@ err_destroy_direct_rqts:
 	mlx5e_destroy_direct_rqts(priv);
 err_destroy_indirect_rqts:
 	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
+err_close_drop_rq:
+	mlx5e_close_drop_rq(&priv->drop_rq);
+err_destroy_q_counters:
+	mlx5e_destroy_q_counters(priv);
 	return err;
 }
 
@@ -391,6 +404,8 @@ static void mlx5i_cleanup_rx(struct mlx5e_priv *priv)
 	mlx5e_destroy_indirect_tirs(priv);
 	mlx5e_destroy_direct_rqts(priv);
 	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
+	mlx5e_close_drop_rq(&priv->drop_rq);
+	mlx5e_destroy_q_counters(priv);
 }
 
 static const struct mlx5e_profile mlx5i_nic_profile = {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
index 3f767cde4c1d..0d90b1b4a3d3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
@@ -111,10 +111,10 @@ static void mlx5_pps_out(struct work_struct *work)
 	for (i = 0; i < clock->ptp_info.n_pins; i++) {
 		u64 tstart;
 
-		write_lock_irqsave(&clock->lock, flags);
+		write_seqlock_irqsave(&clock->lock, flags);
 		tstart = clock->pps_info.start[i];
 		clock->pps_info.start[i] = 0;
-		write_unlock_irqrestore(&clock->lock, flags);
+		write_sequnlock_irqrestore(&clock->lock, flags);
 		if (!tstart)
 			continue;
 
@@ -132,10 +132,10 @@ static void mlx5_timestamp_overflow(struct work_struct *work)
 						overflow_work);
 	unsigned long flags;
 
-	write_lock_irqsave(&clock->lock, flags);
+	write_seqlock_irqsave(&clock->lock, flags);
 	timecounter_read(&clock->tc);
 	mlx5_update_clock_info_page(clock->mdev);
-	write_unlock_irqrestore(&clock->lock, flags);
+	write_sequnlock_irqrestore(&clock->lock, flags);
 	schedule_delayed_work(&clock->overflow_work, clock->overflow_period);
 }
 
@@ -147,10 +147,10 @@ static int mlx5_ptp_settime(struct ptp_clock_info *ptp,
 	u64 ns = timespec64_to_ns(ts);
 	unsigned long flags;
 
-	write_lock_irqsave(&clock->lock, flags);
+	write_seqlock_irqsave(&clock->lock, flags);
 	timecounter_init(&clock->tc, &clock->cycles, ns);
 	mlx5_update_clock_info_page(clock->mdev);
-	write_unlock_irqrestore(&clock->lock, flags);
+	write_sequnlock_irqrestore(&clock->lock, flags);
 
 	return 0;
 }
@@ -162,9 +162,9 @@ static int mlx5_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
 	u64 ns;
 	unsigned long flags;
 
-	write_lock_irqsave(&clock->lock, flags);
+	write_seqlock_irqsave(&clock->lock, flags);
 	ns = timecounter_read(&clock->tc);
-	write_unlock_irqrestore(&clock->lock, flags);
+	write_sequnlock_irqrestore(&clock->lock, flags);
 
 	*ts = ns_to_timespec64(ns);
 
@@ -177,10 +177,10 @@ static int mlx5_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
 						ptp_info);
 	unsigned long flags;
 
-	write_lock_irqsave(&clock->lock, flags);
+	write_seqlock_irqsave(&clock->lock, flags);
 	timecounter_adjtime(&clock->tc, delta);
 	mlx5_update_clock_info_page(clock->mdev);
-	write_unlock_irqrestore(&clock->lock, flags);
+	write_sequnlock_irqrestore(&clock->lock, flags);
 
 	return 0;
 }
@@ -203,12 +203,12 @@ static int mlx5_ptp_adjfreq(struct ptp_clock_info *ptp, s32 delta)
 	adj *= delta;
 	diff = div_u64(adj, 1000000000ULL);
 
-	write_lock_irqsave(&clock->lock, flags);
+	write_seqlock_irqsave(&clock->lock, flags);
 	timecounter_read(&clock->tc);
 	clock->cycles.mult = neg_adj ? clock->nominal_c_mult - diff :
 				       clock->nominal_c_mult + diff;
 	mlx5_update_clock_info_page(clock->mdev);
-	write_unlock_irqrestore(&clock->lock, flags);
+	write_sequnlock_irqrestore(&clock->lock, flags);
 
 	return 0;
 }
@@ -307,12 +307,12 @@ static int mlx5_perout_configure(struct ptp_clock_info *ptp,
 		ts.tv_nsec = rq->perout.start.nsec;
 		ns = timespec64_to_ns(&ts);
 		cycles_now = mlx5_read_internal_timer(mdev);
-		write_lock_irqsave(&clock->lock, flags);
+		write_seqlock_irqsave(&clock->lock, flags);
 		nsec_now = timecounter_cyc2time(&clock->tc, cycles_now);
 		nsec_delta = ns - nsec_now;
 		cycles_delta = div64_u64(nsec_delta << clock->cycles.shift,
 					 clock->cycles.mult);
-		write_unlock_irqrestore(&clock->lock, flags);
+		write_sequnlock_irqrestore(&clock->lock, flags);
 		time_stamp = cycles_now + cycles_delta;
 		field_select = MLX5_MTPPS_FS_PIN_MODE |
 			       MLX5_MTPPS_FS_PATTERN |
@@ -471,14 +471,14 @@ void mlx5_pps_event(struct mlx5_core_dev *mdev,
 		ts.tv_sec += 1;
 		ts.tv_nsec = 0;
 		ns = timespec64_to_ns(&ts);
-		write_lock_irqsave(&clock->lock, flags);
+		write_seqlock_irqsave(&clock->lock, flags);
 		nsec_now = timecounter_cyc2time(&clock->tc, cycles_now);
 		nsec_delta = ns - nsec_now;
 		cycles_delta = div64_u64(nsec_delta << clock->cycles.shift,
 					 clock->cycles.mult);
 		clock->pps_info.start[pin] = cycles_now + cycles_delta;
 		schedule_work(&clock->pps_info.out_work);
-		write_unlock_irqrestore(&clock->lock, flags);
+		write_sequnlock_irqrestore(&clock->lock, flags);
 		break;
 	default:
 		mlx5_core_err(mdev, " Unhandled event\n");
@@ -498,7 +498,7 @@ void mlx5_init_clock(struct mlx5_core_dev *mdev)
 		mlx5_core_warn(mdev, "invalid device_frequency_khz, aborting HW clock init\n");
 		return;
 	}
-	rwlock_init(&clock->lock);
+	seqlock_init(&clock->lock);
 	clock->cycles.read = read_internal_timer;
 	clock->cycles.shift = MLX5_CYCLES_SHIFT;
 	clock->cycles.mult = clocksource_khz2mult(dev_freq,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.h b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.h
index 02e2e4575e4f..263cb6e2aeee 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.h
@@ -46,11 +46,13 @@ static inline int mlx5_clock_get_ptp_index(struct mlx5_core_dev *mdev)
 static inline ktime_t mlx5_timecounter_cyc2time(struct mlx5_clock *clock,
 						u64 timestamp)
 {
+	unsigned int seq;
 	u64 nsec;
 
-	read_lock(&clock->lock);
-	nsec = timecounter_cyc2time(&clock->tc, timestamp);
-	read_unlock(&clock->lock);
+	do {
+		seq = read_seqbegin(&clock->lock);
+		nsec = timecounter_cyc2time(&clock->tc, timestamp);
+	} while (read_seqretry(&clock->lock, seq));
 
 	return ns_to_ktime(nsec);
 }
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 7a452716de4b..b7fce2c9443d 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -583,10 +583,11 @@ struct mlx5_irq_info {
 };
 
 struct mlx5_fc_stats {
-	struct rb_root counters;
-	struct list_head addlist;
-	/* protect addlist add/splice operations */
-	spinlock_t addlist_lock;
+	spinlock_t counters_idr_lock; /* protects counters_idr */
+	struct idr counters_idr;
+	struct list_head counters;
+	struct llist_head addlist;
+	struct llist_head dellist;
 
 	struct workqueue_struct *wq;
 	struct delayed_work work;
@@ -804,7 +805,7 @@ struct mlx5_pps {
 };
 
 struct mlx5_clock {
-	rwlock_t                   lock;
+	seqlock_t                  lock;
 	struct cyclecounter        cycles;
 	struct timecounter         tc;
 	struct hwtstamp_config     hwtstamp_config;