From: Yunsheng Lin <linyunsheng@huawei.com>
Date: Sat, 23 Feb 2019 17:22:08 +0800
Subject: net: hns3: add xps setting support for hns3 driver
Patch-mainline: v5.1-rc1
Git-commit: 2a73ac3e6c9d7cd80af731bcb699c180d95c8166
References: bsc#1126390

This patch adds xps setting support for hns3 driver based on
the interrupt affinity info.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c |   24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -378,6 +378,29 @@ out_start_err:
 	return ret;
 }
 
+static void hns3_config_xps(struct hns3_nic_priv *priv)
+{
+	int i;
+
+	for (i = 0; i < priv->vector_num; i++) {
+		struct hns3_enet_tqp_vector *tqp_vector = &priv->tqp_vector[i];
+		struct hns3_enet_ring *ring = tqp_vector->tx_group.ring;
+
+		while (ring) {
+			int ret;
+
+			ret = netif_set_xps_queue(priv->netdev,
+						  &tqp_vector->affinity_mask,
+						  ring->tqp->tqp_index);
+			if (ret)
+				netdev_warn(priv->netdev,
+					    "set xps queue failed: %d", ret);
+
+			ring = ring->next;
+		}
+	}
+}
+
 static int hns3_nic_net_open(struct net_device *netdev)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
@@ -410,6 +433,7 @@ static int hns3_nic_net_open(struct net_
 	if (h->ae_algo->ops->set_timer_task)
 		h->ae_algo->ops->set_timer_task(priv->ae_handle, true);
 
+	hns3_config_xps(priv);
 	return 0;
 }