Merge branch 'hns3-fixes'

Salil Mehta says:

====================
Fixes, cleanups & minor additions to HNS3 driver

This patch-set present some fixes, cleanups to the HNS3 PF and VF driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hnae3.c

@@ -29,7 +29,7 @@ static bool hnae3_client_match(enum hnae3_client_type client_type,
 	return false;
 }
 
-static void hnae3_set_client_init_flag(struct hnae3_client *client,
+void hnae3_set_client_init_flag(struct hnae3_client *client,
 				struct hnae3_ae_dev *ae_dev, int inited)
 {
 	switch (client->type) {
@@ -46,6 +46,7 @@ static void hnae3_set_client_init_flag(struct hnae3_client *client,
 		break;
 	}
 }
+EXPORT_SYMBOL(hnae3_set_client_init_flag);
 
 static int hnae3_get_client_init_flag(struct hnae3_client *client,
 				       struct hnae3_ae_dev *ae_dev)
@@ -86,14 +87,11 @@ static int hnae3_match_n_instantiate(struct hnae3_client *client,
 	/* now, (un-)instantiate client by calling lower layer */
 	if (is_reg) {
 		ret = ae_dev->ops->init_client_instance(client, ae_dev);
-		if (ret) {
+		if (ret)
 			dev_err(&ae_dev->pdev->dev,
 				"fail to instantiate client, ret = %d\n", ret);
-			return ret;
-		}
 
-		hnae3_set_client_init_flag(client, ae_dev, 1);
-		return 0;
+		return ret;
 	}
 
 	if (hnae3_get_client_init_flag(client, ae_dev)) {

drivers/net/ethernet/hisilicon/hns3/hnae3.h

@@ -337,6 +337,8 @@ struct hnae3_ae_ops {
 	void (*get_mac_addr)(struct hnae3_handle *handle, u8 *p);
 	int (*set_mac_addr)(struct hnae3_handle *handle, void *p,
 			    bool is_first);
+	int (*do_ioctl)(struct hnae3_handle *handle,
+			struct ifreq *ifr, int cmd);
 	int (*add_uc_addr)(struct hnae3_handle *handle,
 			   const unsigned char *addr);
 	int (*rm_uc_addr)(struct hnae3_handle *handle,
@@ -521,4 +523,7 @@ void hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo);
 
 void hnae3_unregister_client(struct hnae3_client *client);
 int hnae3_register_client(struct hnae3_client *client);
+
+void hnae3_set_client_init_flag(struct hnae3_client *client,
+				struct hnae3_ae_dev *ae_dev, int inited);
 #endif

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

@@ -66,6 +66,23 @@ static irqreturn_t hns3_irq_handle(int irq, void *vector)
 	return IRQ_HANDLED;
 }
 
+/* This callback function is used to set affinity changes to the irq affinity
+ * masks when the irq_set_affinity_notifier function is used.
+ */
+static void hns3_nic_irq_affinity_notify(struct irq_affinity_notify *notify,
+					 const cpumask_t *mask)
+{
+	struct hns3_enet_tqp_vector *tqp_vectors =
+		container_of(notify, struct hns3_enet_tqp_vector,
+			     affinity_notify);
+
+	tqp_vectors->affinity_mask = *mask;
+}
+
+static void hns3_nic_irq_affinity_release(struct kref *ref)
+{
+}
+
 static void hns3_nic_uninit_irq(struct hns3_nic_priv *priv)
 {
 	struct hns3_enet_tqp_vector *tqp_vectors;
@@ -77,6 +94,10 @@ static void hns3_nic_uninit_irq(struct hns3_nic_priv *priv)
 		if (tqp_vectors->irq_init_flag != HNS3_VECTOR_INITED)
 			continue;
 
+		/* clear the affinity notifier and affinity mask */
+		irq_set_affinity_notifier(tqp_vectors->vector_irq, NULL);
+		irq_set_affinity_hint(tqp_vectors->vector_irq, NULL);
+
 		/* release the irq resource */
 		free_irq(tqp_vectors->vector_irq, tqp_vectors);
 		tqp_vectors->irq_init_flag = HNS3_VECTOR_NOT_INITED;
@@ -127,6 +148,15 @@ static int hns3_nic_init_irq(struct hns3_nic_priv *priv)
 			return ret;
 		}
 
+		tqp_vectors->affinity_notify.notify =
+					hns3_nic_irq_affinity_notify;
+		tqp_vectors->affinity_notify.release =
+					hns3_nic_irq_affinity_release;
+		irq_set_affinity_notifier(tqp_vectors->vector_irq,
+					  &tqp_vectors->affinity_notify);
+		irq_set_affinity_hint(tqp_vectors->vector_irq,
+				      &tqp_vectors->affinity_mask);
+
 		tqp_vectors->irq_init_flag = HNS3_VECTOR_INITED;
 	}
 
@@ -1044,7 +1074,7 @@ static int hns3_nic_maybe_stop_tx(struct sk_buff **out_skb, int *bnum,
 	/* No. of segments (plus a header) */
 	buf_num = skb_shinfo(skb)->nr_frags + 1;
 
-	if (buf_num > ring_space(ring))
+	if (unlikely(ring_space(ring) < buf_num))
 		return -EBUSY;
 
 	*bnum = buf_num;
@@ -1209,6 +1239,20 @@ static int hns3_nic_net_set_mac_address(struct net_device *netdev, void *p)
 	return 0;
 }
 
+static int hns3_nic_do_ioctl(struct net_device *netdev,
+			     struct ifreq *ifr, int cmd)
+{
+	struct hnae3_handle *h = hns3_get_handle(netdev);
+
+	if (!netif_running(netdev))
+		return -EINVAL;
+
+	if (!h->ae_algo->ops->do_ioctl)
+		return -EOPNOTSUPP;
+
+	return h->ae_algo->ops->do_ioctl(h, ifr, cmd);
+}
+
 static int hns3_nic_set_features(struct net_device *netdev,
 				 netdev_features_t features)
 {
@@ -1535,6 +1579,7 @@ static const struct net_device_ops hns3_nic_netdev_ops = {
 	.ndo_start_xmit		= hns3_nic_net_xmit,
 	.ndo_tx_timeout		= hns3_nic_net_timeout,
 	.ndo_set_mac_address	= hns3_nic_net_set_mac_address,
+	.ndo_do_ioctl		= hns3_nic_do_ioctl,
 	.ndo_change_mtu		= hns3_nic_change_mtu,
 	.ndo_set_features	= hns3_nic_set_features,
 	.ndo_get_stats64	= hns3_nic_get_stats64,
@@ -1925,7 +1970,7 @@ static int is_valid_clean_head(struct hns3_enet_ring *ring, int h)
 	return u > c ? (h > c && h <= u) : (h > c || h <= u);
 }
 
-bool hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget)
+void hns3_clean_tx_ring(struct hns3_enet_ring *ring)
 {
 	struct net_device *netdev = ring->tqp->handle->kinfo.netdev;
 	struct netdev_queue *dev_queue;
@@ -1936,7 +1981,7 @@ bool hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget)
 	rmb(); /* Make sure head is ready before touch any data */
 
 	if (is_ring_empty(ring) || head == ring->next_to_clean)
-		return true; /* no data to poll */
+		return; /* no data to poll */
 
 	if (unlikely(!is_valid_clean_head(ring, head))) {
 		netdev_err(netdev, "wrong head (%d, %d-%d)\n", head,
@@ -1945,16 +1990,15 @@ bool hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget)
 		u64_stats_update_begin(&ring->syncp);
 		ring->stats.io_err_cnt++;
 		u64_stats_update_end(&ring->syncp);
-		return true;
+		return;
 	}
 
 	bytes = 0;
 	pkts = 0;
-	while (head != ring->next_to_clean && budget) {
+	while (head != ring->next_to_clean) {
 		hns3_nic_reclaim_one_desc(ring, &bytes, &pkts);
 		/* Issue prefetch for next Tx descriptor */
 		prefetch(&ring->desc_cb[ring->next_to_clean]);
-		budget--;
 	}
 
 	ring->tqp_vector->tx_group.total_bytes += bytes;
@@ -1979,8 +2023,6 @@ bool hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget)
 			ring->stats.restart_queue++;
 		}
 	}
-
-	return !!budget;
 }
 
 static int hns3_desc_unused(struct hns3_enet_ring *ring)
@@ -2514,10 +2556,8 @@ static int hns3_nic_common_poll(struct napi_struct *napi, int budget)
 	/* Since the actual Tx work is minimal, we can give the Tx a larger
 	 * budget and be more aggressive about cleaning up the Tx descriptors.
 	 */
-	hns3_for_each_ring(ring, tqp_vector->tx_group) {
-		if (!hns3_clean_tx_ring(ring, budget))
-			clean_complete = false;
-	}
+	hns3_for_each_ring(ring, tqp_vector->tx_group)
+		hns3_clean_tx_ring(ring);
 
 	/* make sure rx ring budget not smaller than 1 */
 	rx_budget = max(budget / tqp_vector->num_tqps, 1);
@@ -2640,6 +2680,23 @@ static void hns3_add_ring_to_group(struct hns3_enet_ring_group *group,
 	group->count++;
 }
 
+static void hns3_nic_set_cpumask(struct hns3_nic_priv *priv)
+{
+	struct pci_dev *pdev = priv->ae_handle->pdev;
+	struct hns3_enet_tqp_vector *tqp_vector;
+	int num_vectors = priv->vector_num;
+	int numa_node;
+	int vector_i;
+
+	numa_node = dev_to_node(&pdev->dev);
+
+	for (vector_i = 0; vector_i < num_vectors; vector_i++) {
+		tqp_vector = &priv->tqp_vector[vector_i];
+		cpumask_set_cpu(cpumask_local_spread(vector_i, numa_node),
+				&tqp_vector->affinity_mask);
+	}
+}
+
 static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv)
 {
 	struct hnae3_ring_chain_node vector_ring_chain;
@@ -2648,6 +2705,8 @@ static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv)
 	int ret = 0;
 	u16 i;
 
+	hns3_nic_set_cpumask(priv);
+
 	for (i = 0; i < priv->vector_num; i++) {
 		tqp_vector = &priv->tqp_vector[i];
 		hns3_vector_gl_rl_init_hw(tqp_vector, priv);

drivers/net/ethernet/hisilicon/hns3/hns3_enet.h

@@ -491,7 +491,9 @@ struct hns3_enet_tqp_vector {
 	struct hns3_enet_ring_group rx_group;
 	struct hns3_enet_ring_group tx_group;
 
+	cpumask_t affinity_mask;
 	u16 num_tqps;	/* total number of tqps in TQP vector */
+	struct irq_affinity_notify affinity_notify;
 
 	char name[HNAE3_INT_NAME_LEN];
 
@@ -615,7 +617,7 @@ void hns3_ethtool_set_ops(struct net_device *netdev);
 int hns3_set_channels(struct net_device *netdev,
 		      struct ethtool_channels *ch);
 
-bool hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget);
+void hns3_clean_tx_ring(struct hns3_enet_ring *ring);
 int hns3_init_all_ring(struct hns3_nic_priv *priv);
 int hns3_uninit_all_ring(struct hns3_nic_priv *priv);
 int hns3_nic_reset_all_ring(struct hnae3_handle *h);

drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c

@@ -200,7 +200,7 @@ static void hns3_lb_clear_tx_ring(struct hns3_nic_priv *priv, u32 start_ringid,
 	for (i = start_ringid; i <= end_ringid; i++) {
 		struct hns3_enet_ring *ring = priv->ring_data[i].ring;
 
-		hns3_clean_tx_ring(ring, budget);
+		hns3_clean_tx_ring(ring);
 	}
 }
 

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h

@@ -256,109 +256,6 @@ struct hclge_comm_stats_str {
 	unsigned long offset;
 };
 
-/* all 64bit stats, opcode id: 0x0030 */
-struct hclge_64_bit_stats {
-	/* query_igu_stat */
-	u64 igu_rx_oversize_pkt;
-	u64 igu_rx_undersize_pkt;
-	u64 igu_rx_out_all_pkt;
-	u64 igu_rx_uni_pkt;
-	u64 igu_rx_multi_pkt;
-	u64 igu_rx_broad_pkt;
-	u64 rsv0;
-
-	/* query_egu_stat */
-	u64 egu_tx_out_all_pkt;
-	u64 egu_tx_uni_pkt;
-	u64 egu_tx_multi_pkt;
-	u64 egu_tx_broad_pkt;
-
-	/* ssu_ppp packet stats */
-	u64 ssu_ppp_mac_key_num;
-	u64 ssu_ppp_host_key_num;
-	u64 ppp_ssu_mac_rlt_num;
-	u64 ppp_ssu_host_rlt_num;
-
-	/* ssu_tx_in_out_dfx_stats */
-	u64 ssu_tx_in_num;
-	u64 ssu_tx_out_num;
-	/* ssu_rx_in_out_dfx_stats */
-	u64 ssu_rx_in_num;
-	u64 ssu_rx_out_num;
-};
-
-/* all 32bit stats, opcode id: 0x0031 */
-struct hclge_32_bit_stats {
-	u64 igu_rx_err_pkt;
-	u64 igu_rx_no_eof_pkt;
-	u64 igu_rx_no_sof_pkt;
-	u64 egu_tx_1588_pkt;
-	u64 egu_tx_err_pkt;
-	u64 ssu_full_drop_num;
-	u64 ssu_part_drop_num;
-	u64 ppp_key_drop_num;
-	u64 ppp_rlt_drop_num;
-	u64 ssu_key_drop_num;
-	u64 pkt_curr_buf_cnt;
-	u64 qcn_fb_rcv_cnt;
-	u64 qcn_fb_drop_cnt;
-	u64 qcn_fb_invaild_cnt;
-	u64 rsv0;
-	u64 rx_packet_tc0_in_cnt;
-	u64 rx_packet_tc1_in_cnt;
-	u64 rx_packet_tc2_in_cnt;
-	u64 rx_packet_tc3_in_cnt;
-	u64 rx_packet_tc4_in_cnt;
-	u64 rx_packet_tc5_in_cnt;
-	u64 rx_packet_tc6_in_cnt;
-	u64 rx_packet_tc7_in_cnt;
-	u64 rx_packet_tc0_out_cnt;
-	u64 rx_packet_tc1_out_cnt;
-	u64 rx_packet_tc2_out_cnt;
-	u64 rx_packet_tc3_out_cnt;
-	u64 rx_packet_tc4_out_cnt;
-	u64 rx_packet_tc5_out_cnt;
-	u64 rx_packet_tc6_out_cnt;
-	u64 rx_packet_tc7_out_cnt;
-
-	/* Tx packet level statistics */
-	u64 tx_packet_tc0_in_cnt;
-	u64 tx_packet_tc1_in_cnt;
-	u64 tx_packet_tc2_in_cnt;
-	u64 tx_packet_tc3_in_cnt;
-	u64 tx_packet_tc4_in_cnt;
-	u64 tx_packet_tc5_in_cnt;
-	u64 tx_packet_tc6_in_cnt;
-	u64 tx_packet_tc7_in_cnt;
-	u64 tx_packet_tc0_out_cnt;
-	u64 tx_packet_tc1_out_cnt;
-	u64 tx_packet_tc2_out_cnt;
-	u64 tx_packet_tc3_out_cnt;
-	u64 tx_packet_tc4_out_cnt;
-	u64 tx_packet_tc5_out_cnt;
-	u64 tx_packet_tc6_out_cnt;
-	u64 tx_packet_tc7_out_cnt;
-
-	/* packet buffer statistics */
-	u64 pkt_curr_buf_tc0_cnt;
-	u64 pkt_curr_buf_tc1_cnt;
-	u64 pkt_curr_buf_tc2_cnt;
-	u64 pkt_curr_buf_tc3_cnt;
-	u64 pkt_curr_buf_tc4_cnt;
-	u64 pkt_curr_buf_tc5_cnt;
-	u64 pkt_curr_buf_tc6_cnt;
-	u64 pkt_curr_buf_tc7_cnt;
-
-	u64 mb_uncopy_num;
-	u64 lo_pri_unicast_rlt_drop_num;
-	u64 hi_pri_multicast_rlt_drop_num;
-	u64 lo_pri_multicast_rlt_drop_num;
-	u64 rx_oq_drop_pkt_cnt;
-	u64 tx_oq_drop_pkt_cnt;
-	u64 nic_l2_err_drop_pkt_cnt;
-	u64 roc_l2_err_drop_pkt_cnt;
-};
-
 /* mac stats ,opcode id: 0x0032 */
 struct hclge_mac_stats {
 	u64 mac_tx_mac_pause_num;
@@ -450,8 +347,6 @@ struct hclge_mac_stats {
 #define HCLGE_STATS_TIMER_INTERVAL	(60 * 5)
 struct hclge_hw_stats {
 	struct hclge_mac_stats      mac_stats;
-	struct hclge_64_bit_stats   all_64_bit_stats;
-	struct hclge_32_bit_stats   all_32_bit_stats;
 	u32 stats_timer;
 };
 

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c

@@ -297,7 +297,7 @@ static int hclge_tm_qs_to_pri_map_cfg(struct hclge_dev *hdev,
 }
 
 static int hclge_tm_q_to_qs_map_cfg(struct hclge_dev *hdev,
-				    u8 q_id, u16 qs_id)
+				    u16 q_id, u16 qs_id)
 {
 	struct hclge_nq_to_qs_link_cmd *map;
 	struct hclge_desc desc;

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c

@@ -132,8 +132,8 @@ static int hclgevf_init_cmd_queue(struct hclgevf_dev *hdev,
 		reg_val |= HCLGEVF_NIC_CMQ_ENABLE;
 		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_DEPTH_REG, reg_val);
 
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_TAIL_REG, 0);
 		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_HEAD_REG, 0);
+		hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_TAIL_REG, 0);
 		break;
 	case HCLGEVF_TYPE_CRQ:
 		reg_val = (u32)ring->desc_dma_addr;
@@ -145,8 +145,8 @@ static int hclgevf_init_cmd_queue(struct hclgevf_dev *hdev,
 		reg_val |= HCLGEVF_NIC_CMQ_ENABLE;
 		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_DEPTH_REG, reg_val);
 
-		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_TAIL_REG, 0);
 		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_HEAD_REG, 0);
+		hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_TAIL_REG, 0);
 		break;
 	}
 

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c

@@ -299,6 +299,9 @@ void hclgevf_update_link_status(struct hclgevf_dev *hdev, int link_state)
 
 	client = handle->client;
 
+	link_state =
+		test_bit(HCLGEVF_STATE_DOWN, &hdev->state) ? 0 : link_state;
+
 	if (link_state != hdev->hw.mac.link) {
 		client->ops->link_status_change(handle, !!link_state);
 		hdev->hw.mac.link = link_state;
@@ -1448,6 +1451,8 @@ static void hclgevf_ae_stop(struct hnae3_handle *handle)
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
 	int i, queue_id;
 
+	set_bit(HCLGEVF_STATE_DOWN, &hdev->state);
+
 	for (i = 0; i < hdev->num_tqps; i++) {
 		/* Ring disable */
 		queue_id = hclgevf_get_queue_id(handle->kinfo.tqp[i]);
@@ -1619,17 +1624,22 @@ static int hclgevf_init_client_instance(struct hnae3_client *client,
 
 		ret = client->ops->init_instance(&hdev->nic);
 		if (ret)
-			return ret;
+			goto clear_nic;
+
+		hnae3_set_client_init_flag(client, ae_dev, 1);
 
 		if (hdev->roce_client && hnae3_dev_roce_supported(hdev)) {
 			struct hnae3_client *rc = hdev->roce_client;
 
 			ret = hclgevf_init_roce_base_info(hdev);
 			if (ret)
-				return ret;
+				goto clear_roce;
 			ret = rc->ops->init_instance(&hdev->roce);
 			if (ret)
-				return ret;
+				goto clear_roce;
+
+			hnae3_set_client_init_flag(hdev->roce_client, ae_dev,
+						   1);
 		}
 		break;
 	case HNAE3_CLIENT_UNIC:
@@ -1638,7 +1648,9 @@ static int hclgevf_init_client_instance(struct hnae3_client *client,
 
 		ret = client->ops->init_instance(&hdev->nic);
 		if (ret)
-			return ret;
+			goto clear_nic;
+
+		hnae3_set_client_init_flag(client, ae_dev, 1);
 		break;
 	case HNAE3_CLIENT_ROCE:
 		if (hnae3_dev_roce_supported(hdev)) {
@@ -1649,15 +1661,26 @@ static int hclgevf_init_client_instance(struct hnae3_client *client,
 		if (hdev->roce_client && hdev->nic_client) {
 			ret = hclgevf_init_roce_base_info(hdev);
 			if (ret)
-				return ret;
+				goto clear_roce;
 
 			ret = client->ops->init_instance(&hdev->roce);
 			if (ret)
-				return ret;
+				goto clear_roce;
 		}
+
+		hnae3_set_client_init_flag(client, ae_dev, 1);
 	}
 
 	return 0;
+
+clear_nic:
+	hdev->nic_client = NULL;
+	hdev->nic.client = NULL;
+	return ret;
+clear_roce:
+	hdev->roce_client = NULL;
+	hdev->roce.client = NULL;
+	return ret;
 }
 
 static void hclgevf_uninit_client_instance(struct hnae3_client *client,
@@ -1666,13 +1689,19 @@ static void hclgevf_uninit_client_instance(struct hnae3_client *client,
 	struct hclgevf_dev *hdev = ae_dev->priv;
 
 	/* un-init roce, if it exists */
-	if (hdev->roce_client)
+	if (hdev->roce_client) {
 		hdev->roce_client->ops->uninit_instance(&hdev->roce, 0);
+		hdev->roce_client = NULL;
+		hdev->roce.client = NULL;
+	}
 
 	/* un-init nic/unic, if this was not called by roce client */
-	if ((client->ops->uninit_instance) &&
-	    (client->type != HNAE3_CLIENT_ROCE))
+	if (client->ops->uninit_instance && hdev->nic_client &&
+	    client->type != HNAE3_CLIENT_ROCE) {
 		client->ops->uninit_instance(&hdev->nic, 0);
+		hdev->nic_client = NULL;
+		hdev->nic.client = NULL;
+	}
 }
 
 static int hclgevf_pci_init(struct hclgevf_dev *hdev)