diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 4186e29119c27..0097c18d0d670 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -590,21 +590,28 @@ static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
 	return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
 }
 
-static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
+static int mlxsw_sp_port_max_mtu_get(struct mlxsw_sp_port *mlxsw_sp_port, int *p_max_mtu)
 {
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	char pmtu_pl[MLXSW_REG_PMTU_LEN];
-	int max_mtu;
 	int err;
 
-	mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
 	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
 	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
 	if (err)
 		return err;
-	max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
 
-	if (mtu > max_mtu)
+	*p_max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
+	return 0;
+}
+
+static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
+{
+	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
+	char pmtu_pl[MLXSW_REG_PMTU_LEN];
+
+	mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
+	if (mtu > mlxsw_sp_port->max_mtu)
 		return -EINVAL;
 
 	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
@@ -996,9 +1003,6 @@ static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
 	err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
 	if (err)
 		return err;
-	err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu);
-	if (err)
-		goto err_span_port_mtu_update;
 	err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
 	if (err)
 		goto err_port_mtu_set;
@@ -1006,8 +1010,6 @@ static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
 	return 0;
 
 err_port_mtu_set:
-	mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu);
-err_span_port_mtu_update:
 	mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
 	return err;
 }
@@ -1842,6 +1844,21 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 		goto err_port_speed_by_width_set;
 	}
 
+	err = mlxsw_sp->port_type_speed_ops->ptys_max_speed(mlxsw_sp_port,
+							    &mlxsw_sp_port->max_speed);
+	if (err) {
+		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to get maximum speed\n",
+			mlxsw_sp_port->local_port);
+		goto err_max_speed_get;
+	}
+
+	err = mlxsw_sp_port_max_mtu_get(mlxsw_sp_port, &mlxsw_sp_port->max_mtu);
+	if (err) {
+		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to get maximum MTU\n",
+			mlxsw_sp_port->local_port);
+		goto err_port_max_mtu_get;
+	}
+
 	err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
 	if (err) {
 		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
@@ -1930,8 +1947,6 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 
 	INIT_DELAYED_WORK(&mlxsw_sp_port->ptp.shaper_dw,
 			  mlxsw_sp->ptp_ops->shaper_work);
-	INIT_DELAYED_WORK(&mlxsw_sp_port->span.speed_update_dw,
-			  mlxsw_sp_span_speed_update_work);
 
 	mlxsw_sp->ports[local_port] = mlxsw_sp_port;
 	err = register_netdev(dev);
@@ -1966,6 +1981,8 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 err_port_buffers_init:
 err_port_admin_status_set:
 err_port_mtu_set:
+err_port_max_mtu_get:
+err_max_speed_get:
 err_port_speed_by_width_set:
 err_port_system_port_mapping_set:
 err_dev_addr_init:
@@ -1986,7 +2003,6 @@ static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
 	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
 
 	cancel_delayed_work_sync(&mlxsw_sp_port->periodic_hw_stats.update_dw);
-	cancel_delayed_work_sync(&mlxsw_sp_port->span.speed_update_dw);
 	cancel_delayed_work_sync(&mlxsw_sp_port->ptp.shaper_dw);
 	mlxsw_sp_port_ptp_clear(mlxsw_sp_port);
 	mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp);
@@ -2390,7 +2406,6 @@ static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
 		netdev_info(mlxsw_sp_port->dev, "link up\n");
 		netif_carrier_on(mlxsw_sp_port->dev);
 		mlxsw_core_schedule_dw(&mlxsw_sp_port->ptp.shaper_dw, 0);
-		mlxsw_core_schedule_dw(&mlxsw_sp_port->span.speed_update_dw, 0);
 	} else {
 		netdev_info(mlxsw_sp_port->dev, "link down\n");
 		netif_carrier_off(mlxsw_sp_port->dev);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 5240bf11b6c42..c8077eddf0a87 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -316,9 +316,8 @@ struct mlxsw_sp_port {
 		struct mlxsw_sp_ptp_port_stats stats;
 	} ptp;
 	u8 split_base_local_port;
-	struct {
-		struct delayed_work speed_update_dw;
-	} span;
+	int max_mtu;
+	u32 max_speed;
 };
 
 struct mlxsw_sp_port_type_speed_ops {
@@ -331,6 +330,7 @@ struct mlxsw_sp_port_type_speed_ops {
 	void (*from_ptys_speed_duplex)(struct mlxsw_sp *mlxsw_sp,
 				       bool carrier_ok, u32 ptys_eth_proto,
 				       struct ethtool_link_ksettings *cmd);
+	int (*ptys_max_speed)(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed);
 	u32 (*to_ptys_advert_link)(struct mlxsw_sp *mlxsw_sp, u8 width,
 				   const struct ethtool_link_ksettings *cmd);
 	u32 (*to_ptys_speed)(struct mlxsw_sp *mlxsw_sp, u8 width, u32 speed);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
index f08cad5b5657c..6ee0479b189f1 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
@@ -842,6 +842,29 @@ mlxsw_sp_port_connector_port(enum mlxsw_reg_ptys_connector_type connector_type)
 	}
 }
 
+static int mlxsw_sp_port_ptys_query(struct mlxsw_sp_port *mlxsw_sp_port,
+				    u32 *p_eth_proto_cap, u32 *p_eth_proto_admin,
+				    u32 *p_eth_proto_oper, u8 *p_connector_type)
+{
+	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
+	const struct mlxsw_sp_port_type_speed_ops *ops;
+	char ptys_pl[MLXSW_REG_PTYS_LEN];
+	int err;
+
+	ops = mlxsw_sp->port_type_speed_ops;
+
+	ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port, 0, false);
+	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
+	if (err)
+		return err;
+
+	ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, p_eth_proto_cap, p_eth_proto_admin,
+				 p_eth_proto_oper);
+	if (p_connector_type)
+		*p_connector_type = mlxsw_reg_ptys_connector_type_get(ptys_pl);
+	return 0;
+}
+
 static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
 					    struct ethtool_link_ksettings *cmd)
 {
@@ -849,21 +872,17 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
 	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	const struct mlxsw_sp_port_type_speed_ops *ops;
-	char ptys_pl[MLXSW_REG_PTYS_LEN];
 	u8 connector_type;
 	bool autoneg;
 	int err;
 
-	ops = mlxsw_sp->port_type_speed_ops;
-
-	autoneg = mlxsw_sp_port->link.autoneg;
-	ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port,
-			       0, false);
-	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
+	err = mlxsw_sp_port_ptys_query(mlxsw_sp_port, &eth_proto_cap, &eth_proto_admin,
+				       &eth_proto_oper, &connector_type);
 	if (err)
 		return err;
-	ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, &eth_proto_cap,
-				 &eth_proto_admin, &eth_proto_oper);
+
+	ops = mlxsw_sp->port_type_speed_ops;
+	autoneg = mlxsw_sp_port->link.autoneg;
 
 	mlxsw_sp_port_get_link_supported(mlxsw_sp, eth_proto_cap,
 					 mlxsw_sp_port->mapping.width, cmd);
@@ -872,7 +891,6 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
 					 mlxsw_sp_port->mapping.width, cmd);
 
 	cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
-	connector_type = mlxsw_reg_ptys_connector_type_get(ptys_pl);
 	cmd->base.port = mlxsw_sp_port_connector_port(connector_type);
 	ops->from_ptys_speed_duplex(mlxsw_sp, netif_carrier_ok(dev),
 				    eth_proto_oper, cmd);
@@ -1144,6 +1162,27 @@ mlxsw_sp1_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok,
 		cmd->base.duplex = DUPLEX_FULL;
 }
 
+static int mlxsw_sp1_ptys_max_speed(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed)
+{
+	u32 eth_proto_cap;
+	u32 max_speed = 0;
+	int err;
+	int i;
+
+	err = mlxsw_sp_port_ptys_query(mlxsw_sp_port, &eth_proto_cap, NULL, NULL, NULL);
+	if (err)
+		return err;
+
+	for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) {
+		if ((eth_proto_cap & mlxsw_sp1_port_link_mode[i].mask) &&
+		    mlxsw_sp1_port_link_mode[i].speed > max_speed)
+			max_speed = mlxsw_sp1_port_link_mode[i].speed;
+	}
+
+	*p_max_speed = max_speed;
+	return 0;
+}
+
 static u32
 mlxsw_sp1_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, u8 width,
 			      const struct ethtool_link_ksettings *cmd)
@@ -1193,6 +1232,7 @@ const struct mlxsw_sp_port_type_speed_ops mlxsw_sp1_port_type_speed_ops = {
 	.from_ptys_link			= mlxsw_sp1_from_ptys_link,
 	.from_ptys_speed		= mlxsw_sp1_from_ptys_speed,
 	.from_ptys_speed_duplex		= mlxsw_sp1_from_ptys_speed_duplex,
+	.ptys_max_speed			= mlxsw_sp1_ptys_max_speed,
 	.to_ptys_advert_link		= mlxsw_sp1_to_ptys_advert_link,
 	.to_ptys_speed			= mlxsw_sp1_to_ptys_speed,
 	.reg_ptys_eth_pack		= mlxsw_sp1_reg_ptys_eth_pack,
@@ -1530,6 +1570,27 @@ mlxsw_sp2_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok,
 		cmd->base.duplex = DUPLEX_FULL;
 }
 
+static int mlxsw_sp2_ptys_max_speed(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed)
+{
+	u32 eth_proto_cap;
+	u32 max_speed = 0;
+	int err;
+	int i;
+
+	err = mlxsw_sp_port_ptys_query(mlxsw_sp_port, &eth_proto_cap, NULL, NULL, NULL);
+	if (err)
+		return err;
+
+	for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) {
+		if ((eth_proto_cap & mlxsw_sp2_port_link_mode[i].mask) &&
+		    mlxsw_sp2_port_link_mode[i].speed > max_speed)
+			max_speed = mlxsw_sp2_port_link_mode[i].speed;
+	}
+
+	*p_max_speed = max_speed;
+	return 0;
+}
+
 static bool
 mlxsw_sp2_test_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode,
 			   const unsigned long *mode)
@@ -1599,6 +1660,7 @@ const struct mlxsw_sp_port_type_speed_ops mlxsw_sp2_port_type_speed_ops = {
 	.from_ptys_link			= mlxsw_sp2_from_ptys_link,
 	.from_ptys_speed		= mlxsw_sp2_from_ptys_speed,
 	.from_ptys_speed_duplex		= mlxsw_sp2_from_ptys_speed_duplex,
+	.ptys_max_speed			= mlxsw_sp2_ptys_max_speed,
 	.to_ptys_advert_link		= mlxsw_sp2_to_ptys_advert_link,
 	.to_ptys_speed			= mlxsw_sp2_to_ptys_speed,
 	.reg_ptys_eth_pack		= mlxsw_sp2_reg_ptys_eth_pack,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c
index 1d18e41ab2553..38b3131c40274 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c
@@ -977,21 +977,14 @@ static u32 mlxsw_sp_span_buffsize_get(struct mlxsw_sp *mlxsw_sp, int mtu,
 }
 
 static int
-mlxsw_sp_span_port_buffer_update(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
+mlxsw_sp_span_port_buffer_enable(struct mlxsw_sp_port *mlxsw_sp_port)
 {
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	char sbib_pl[MLXSW_REG_SBIB_LEN];
 	u32 buffsize;
-	u32 speed;
-	int err;
-
-	err = mlxsw_sp_port_speed_get(mlxsw_sp_port, &speed);
-	if (err)
-		return err;
-	if (speed == SPEED_UNKNOWN)
-		speed = 0;
 
-	buffsize = mlxsw_sp_span_buffsize_get(mlxsw_sp, speed, mtu);
+	buffsize = mlxsw_sp_span_buffsize_get(mlxsw_sp, mlxsw_sp_port->max_speed,
+					      mlxsw_sp_port->max_mtu);
 	buffsize = mlxsw_sp_port_headroom_8x_adjust(mlxsw_sp_port, buffsize);
 	mlxsw_reg_sbib_pack(sbib_pl, mlxsw_sp_port->local_port, buffsize);
 	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
@@ -1021,48 +1014,6 @@ mlxsw_sp_span_analyzed_port_find(struct mlxsw_sp_span *span, u8 local_port,
 	return NULL;
 }
 
-int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu)
-{
-	struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
-	int err = 0;
-
-	/* If port is egress mirrored, the shared buffer size should be
-	 * updated according to the mtu value
-	 */
-	mutex_lock(&mlxsw_sp->span->analyzed_ports_lock);
-
-	if (mlxsw_sp_span_analyzed_port_find(mlxsw_sp->span, port->local_port,
-					     false))
-		err = mlxsw_sp_span_port_buffer_update(port, mtu);
-
-	mutex_unlock(&mlxsw_sp->span->analyzed_ports_lock);
-
-	return err;
-}
-
-void mlxsw_sp_span_speed_update_work(struct work_struct *work)
-{
-	struct delayed_work *dwork = to_delayed_work(work);
-	struct mlxsw_sp_port *mlxsw_sp_port;
-	struct mlxsw_sp *mlxsw_sp;
-
-	mlxsw_sp_port = container_of(dwork, struct mlxsw_sp_port,
-				     span.speed_update_dw);
-
-	/* If port is egress mirrored, the shared buffer size should be
-	 * updated according to the speed value.
-	 */
-	mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
-	mutex_lock(&mlxsw_sp->span->analyzed_ports_lock);
-
-	if (mlxsw_sp_span_analyzed_port_find(mlxsw_sp->span,
-					     mlxsw_sp_port->local_port, false))
-		mlxsw_sp_span_port_buffer_update(mlxsw_sp_port,
-						 mlxsw_sp_port->dev->mtu);
-
-	mutex_unlock(&mlxsw_sp->span->analyzed_ports_lock);
-}
-
 static const struct mlxsw_sp_span_entry_ops *
 mlxsw_sp_span_entry_ops(struct mlxsw_sp *mlxsw_sp,
 			const struct net_device *to_dev)
@@ -1180,9 +1131,7 @@ mlxsw_sp_span_analyzed_port_create(struct mlxsw_sp_span *span,
 	 * does the mirroring.
 	 */
 	if (!ingress) {
-		u16 mtu = mlxsw_sp_port->dev->mtu;
-
-		err = mlxsw_sp_span_port_buffer_update(mlxsw_sp_port, mtu);
+		err = mlxsw_sp_span_port_buffer_enable(mlxsw_sp_port);
 		if (err)
 			goto err_buffer_update;
 	}