1 files changed, 95 insertions, 57 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index b23107d7821f..ac848163ccae 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -158,43 +158,68 @@ static void hns3_vector_disable(struct hns3_enet_tqp_vector *tqp_vector)
 	napi_disable(&tqp_vector->napi);
 }
 
-static void hns3_set_vector_coalesc_gl(struct hns3_enet_tqp_vector *tqp_vector,
-				       u32 gl_value)
+void hns3_set_vector_coalesce_rl(struct hns3_enet_tqp_vector *tqp_vector,
+				 u32 rl_value)
 {
-	/* this defines the configuration for GL (Interrupt Gap Limiter)
-	 * GL defines inter interrupt gap.
-	 * GL and RL(Rate Limiter) are 2 ways to acheive interrupt coalescing
-	 */
-	writel(gl_value, tqp_vector->mask_addr + HNS3_VECTOR_GL0_OFFSET);
-	writel(gl_value, tqp_vector->mask_addr + HNS3_VECTOR_GL1_OFFSET);
-	writel(gl_value, tqp_vector->mask_addr + HNS3_VECTOR_GL2_OFFSET);
-}
+	u32 rl_reg = hns3_rl_usec_to_reg(rl_value);
 
-static void hns3_set_vector_coalesc_rl(struct hns3_enet_tqp_vector *tqp_vector,
-				       u32 rl_value)
-{
 	/* this defines the configuration for RL (Interrupt Rate Limiter).
 	 * Rl defines rate of interrupts i.e. number of interrupts-per-second
 	 * GL and RL(Rate Limiter) are 2 ways to acheive interrupt coalescing
 	 */
-	writel(rl_value, tqp_vector->mask_addr + HNS3_VECTOR_RL_OFFSET);
+
+	if (rl_reg > 0 && !tqp_vector->tx_group.gl_adapt_enable &&
+	    !tqp_vector->rx_group.gl_adapt_enable)
+		/* According to the hardware, the range of rl_reg is
+		 * 0-59 and the unit is 4.
+		 */
+		rl_reg |=  HNS3_INT_RL_ENABLE_MASK;
+
+	writel(rl_reg, tqp_vector->mask_addr + HNS3_VECTOR_RL_OFFSET);
+}
+
+void hns3_set_vector_coalesce_rx_gl(struct hns3_enet_tqp_vector *tqp_vector,
+				    u32 gl_value)
+{
+	u32 rx_gl_reg = hns3_gl_usec_to_reg(gl_value);
+
+	writel(rx_gl_reg, tqp_vector->mask_addr + HNS3_VECTOR_GL0_OFFSET);
 }
 
-static void hns3_vector_gl_rl_init(struct hns3_enet_tqp_vector *tqp_vector)
+void hns3_set_vector_coalesce_tx_gl(struct hns3_enet_tqp_vector *tqp_vector,
+				    u32 gl_value)
 {
+	u32 tx_gl_reg = hns3_gl_usec_to_reg(gl_value);
+
+	writel(tx_gl_reg, tqp_vector->mask_addr + HNS3_VECTOR_GL1_OFFSET);
+}
+
+static void hns3_vector_gl_rl_init(struct hns3_enet_tqp_vector *tqp_vector,
+				   struct hns3_nic_priv *priv)
+{
+	struct hnae3_handle *h = priv->ae_handle;
+
 	/* initialize the configuration for interrupt coalescing.
 	 * 1. GL (Interrupt Gap Limiter)
 	 * 2. RL (Interrupt Rate Limiter)
 	 */
 
-	/* Default :enable interrupt coalesce */
-	tqp_vector->rx_group.int_gl = HNS3_INT_GL_50K;
+	/* Default: enable interrupt coalescing self-adaptive and GL */
+	tqp_vector->tx_group.gl_adapt_enable = 1;
+	tqp_vector->rx_group.gl_adapt_enable = 1;
+
 	tqp_vector->tx_group.int_gl = HNS3_INT_GL_50K;
-	hns3_set_vector_coalesc_gl(tqp_vector, HNS3_INT_GL_50K);
-	/* for now we are disabling Interrupt RL - we
-	 * will re-enable later
-	 */
-	hns3_set_vector_coalesc_rl(tqp_vector, 0);
+	tqp_vector->rx_group.int_gl = HNS3_INT_GL_50K;
+
+	hns3_set_vector_coalesce_tx_gl(tqp_vector,
+				       tqp_vector->tx_group.int_gl);
+	hns3_set_vector_coalesce_rx_gl(tqp_vector,
+				       tqp_vector->rx_group.int_gl);
+
+	/* Default: disable RL */
+	h->kinfo.int_rl_setting = 0;
+	hns3_set_vector_coalesce_rl(tqp_vector, h->kinfo.int_rl_setting);
+
 	tqp_vector->rx_group.flow_level = HNS3_FLOW_LOW;
 	tqp_vector->tx_group.flow_level = HNS3_FLOW_LOW;
 }
@@ -1093,26 +1118,31 @@ static int hns3_nic_net_set_mac_address(struct net_device *netdev, void *p)
 static int hns3_nic_set_features(struct net_device *netdev,
 				 netdev_features_t features)
 {
+	netdev_features_t changed = netdev->features ^ features;
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	struct hnae3_handle *h = priv->ae_handle;
-	netdev_features_t changed;
 	int ret;
 
-	if (features & (NETIF_F_TSO | NETIF_F_TSO6)) {
-		priv->ops.fill_desc = hns3_fill_desc_tso;
-		priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tso;
-	} else {
-		priv->ops.fill_desc = hns3_fill_desc;
-		priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tx;
+	if (changed & (NETIF_F_TSO | NETIF_F_TSO6)) {
+		if (features & (NETIF_F_TSO | NETIF_F_TSO6)) {
+			priv->ops.fill_desc = hns3_fill_desc_tso;
+			priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tso;
+		} else {
+			priv->ops.fill_desc = hns3_fill_desc;
+			priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tx;
+		}
 	}
 
-	if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
-		h->ae_algo->ops->enable_vlan_filter(h, true);
-	else
-		h->ae_algo->ops->enable_vlan_filter(h, false);
+	if ((changed & NETIF_F_HW_VLAN_CTAG_FILTER) &&
+	    h->ae_algo->ops->enable_vlan_filter) {
+		if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
+			h->ae_algo->ops->enable_vlan_filter(h, true);
+		else
+			h->ae_algo->ops->enable_vlan_filter(h, false);
+	}
 
-	changed = netdev->features ^ features;
-	if (changed & NETIF_F_HW_VLAN_CTAG_RX) {
+	if ((changed & NETIF_F_HW_VLAN_CTAG_RX) &&
+	    h->ae_algo->ops->enable_hw_strip_rxvtag) {
 		if (features & NETIF_F_HW_VLAN_CTAG_RX)
 			ret = h->ae_algo->ops->enable_hw_strip_rxvtag(h, true);
 		else
@@ -1126,8 +1156,8 @@ static int hns3_nic_set_features(struct net_device *netdev,
 	return 0;
 }
 
-static void
-hns3_nic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
+static void hns3_nic_get_stats64(struct net_device *netdev,
+				 struct rtnl_link_stats64 *stats)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	int queue_num = priv->ae_handle->kinfo.num_tqps;
@@ -2422,25 +2452,22 @@ static bool hns3_get_new_int_gl(struct hns3_enet_ring_group *ring_group)
 
 static void hns3_update_new_int_gl(struct hns3_enet_tqp_vector *tqp_vector)
 {
-	u16 rx_int_gl, tx_int_gl;
-	bool rx, tx;
-
-	rx = hns3_get_new_int_gl(&tqp_vector->rx_group);
-	tx = hns3_get_new_int_gl(&tqp_vector->tx_group);
-	rx_int_gl = tqp_vector->rx_group.int_gl;
-	tx_int_gl = tqp_vector->tx_group.int_gl;
-	if (rx && tx) {
-		if (rx_int_gl > tx_int_gl) {
-			tqp_vector->tx_group.int_gl = rx_int_gl;
-			tqp_vector->tx_group.flow_level =
-				tqp_vector->rx_group.flow_level;
-			hns3_set_vector_coalesc_gl(tqp_vector, rx_int_gl);
-		} else {
-			tqp_vector->rx_group.int_gl = tx_int_gl;
-			tqp_vector->rx_group.flow_level =
-				tqp_vector->tx_group.flow_level;
-			hns3_set_vector_coalesc_gl(tqp_vector, tx_int_gl);
-		}
+	struct hns3_enet_ring_group *rx_group = &tqp_vector->rx_group;
+	struct hns3_enet_ring_group *tx_group = &tqp_vector->tx_group;
+	bool rx_update, tx_update;
+
+	if (rx_group->gl_adapt_enable) {
+		rx_update = hns3_get_new_int_gl(rx_group);
+		if (rx_update)
+			hns3_set_vector_coalesce_rx_gl(tqp_vector,
+						       rx_group->int_gl);
+	}
+
+	if (tx_group->gl_adapt_enable) {
+		tx_update = hns3_get_new_int_gl(&tqp_vector->tx_group);
+		if (tx_update)
+			hns3_set_vector_coalesce_tx_gl(tqp_vector,
+						       tx_group->int_gl);
 	}
 }
 
@@ -2501,6 +2528,8 @@ static int hns3_get_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
 		cur_chain->tqp_index = tx_ring->tqp->tqp_index;
 		hnae_set_bit(cur_chain->flag, HNAE3_RING_TYPE_B,
 			     HNAE3_RING_TYPE_TX);
+		hnae_set_field(cur_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
+			       HNAE3_RING_GL_IDX_S, HNAE3_RING_GL_TX);
 
 		cur_chain->next = NULL;
 
@@ -2516,6 +2545,10 @@ static int hns3_get_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
 			chain->tqp_index = tx_ring->tqp->tqp_index;
 			hnae_set_bit(chain->flag, HNAE3_RING_TYPE_B,
 				     HNAE3_RING_TYPE_TX);
+			hnae_set_field(chain->int_gl_idx,
+				       HNAE3_RING_GL_IDX_M,
+				       HNAE3_RING_GL_IDX_S,
+				       HNAE3_RING_GL_TX);
 
 			cur_chain = chain;
 		}
@@ -2527,6 +2560,8 @@ static int hns3_get_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
 		cur_chain->tqp_index = rx_ring->tqp->tqp_index;
 		hnae_set_bit(cur_chain->flag, HNAE3_RING_TYPE_B,
 			     HNAE3_RING_TYPE_RX);
+		hnae_set_field(cur_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
+			       HNAE3_RING_GL_IDX_S, HNAE3_RING_GL_RX);
 
 		rx_ring = rx_ring->next;
 	}
@@ -2540,6 +2575,9 @@ static int hns3_get_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
 		chain->tqp_index = rx_ring->tqp->tqp_index;
 		hnae_set_bit(chain->flag, HNAE3_RING_TYPE_B,
 			     HNAE3_RING_TYPE_RX);
+		hnae_set_field(chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
+			       HNAE3_RING_GL_IDX_S, HNAE3_RING_GL_RX);
+
 		cur_chain = chain;
 
 		rx_ring = rx_ring->next;
@@ -2628,7 +2666,7 @@ static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv)
 		tqp_vector->rx_group.total_packets = 0;
 		tqp_vector->tx_group.total_bytes = 0;
 		tqp_vector->tx_group.total_packets = 0;
-		hns3_vector_gl_rl_init(tqp_vector);
+		hns3_vector_gl_rl_init(tqp_vector, priv);
 		tqp_vector->handle = h;
 
 		ret = hns3_get_vector_ring_chain(tqp_vector,