Merge branch 'hns3-next'

Huazhong Tan says:

====================
cleanup & optimizations & bugfixes for HNS3 driver

This patchset contains some cleanup related to hns3_enet_ring
struct and tx bd filling process, optimizations related
to rx page reusing, barrier using and tso handling process,
bugfixes related to tunnel type handling and error handling for
desc filling.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -376,6 +376,7 @@ struct ring_stats {
 			u64 tx_err_cnt;
 			u64 restart_queue;
 			u64 tx_busy;
+			u64 tx_copy;
 		};
 		struct {
 			u64 rx_pkts;
@@ -388,6 +389,7 @@ struct ring_stats {
 			u64 l2_err;
 			u64 l3l4_csum_err;
 			u64 rx_multicast;
+			u64 non_reuse_pg;
 		};
 	};
 };
@@ -399,7 +401,6 @@ struct hns3_enet_ring {
 	struct hns3_enet_ring *next;
 	struct hns3_enet_tqp_vector *tqp_vector;
 	struct hnae3_queue *tqp;
-	char ring_name[HNS3_RING_NAME_LEN];
 	struct device *dev; /* will be used for DMA mapping of descriptors */
 
 	/* statistic */
@@ -409,9 +410,6 @@ struct hns3_enet_ring {
 	dma_addr_t desc_dma_addr;
 	u32 buf_size;       /* size for hnae_desc->addr, preset by AE */
 	u16 desc_num;       /* total number of desc */
-	u16 max_desc_num_per_pkt;
-	u16 max_raw_data_sz_per_desc;
-	u16 max_pkt_size;
 	int next_to_use;    /* idx of next spare desc */
 
 	/* idx of lastest sent desc, the ring is empty when equal to
@@ -425,9 +423,6 @@ struct hns3_enet_ring {
 
 	u32 flag;          /* ring attribute */
 
-	int numa_node;
-	cpumask_t affinity_mask;
-
 	int pending_buf;
 	struct sk_buff *skb;
 	struct sk_buff *tail_skb;
@@ -444,11 +439,6 @@ struct hns3_nic_ring_data {
 	void (*fini_process)(struct hns3_nic_ring_data *);
 };
 
-struct hns3_nic_ops {
-	int (*maybe_stop_tx)(struct sk_buff **out_skb,
-			     int *bnum, struct hns3_enet_ring *ring);
-};
-
 enum hns3_flow_level_range {
 	HNS3_FLOW_LOW = 0,
 	HNS3_FLOW_MID = 1,
@@ -538,7 +528,6 @@ struct hns3_nic_priv {
 	u32 port_id;
 	struct net_device *netdev;
 	struct device *dev;
-	struct hns3_nic_ops ops;
 
 	/**
 	 * the cb for nic to manage the ring buffer, the first half of the
@@ -633,7 +622,7 @@ static inline bool hns3_nic_resetting(struct net_device *netdev)
 #define hnae3_queue_xmit(tqp, buf_num) writel_relaxed(buf_num, \
 		(tqp)->io_base + HNS3_RING_TX_RING_TAIL_REG)
 
-#define ring_to_dev(ring) (&(ring)->tqp->handle->pdev->dev)
+#define ring_to_dev(ring) ((ring)->dev)
 
 #define ring_to_dma_dir(ring) (HNAE3_IS_TX_RING(ring) ? \
 	DMA_TO_DEVICE : DMA_FROM_DEVICE)

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

@@ -29,6 +29,7 @@ static const struct hns3_stats hns3_txq_stats[] = {
 	HNS3_TQP_STAT("errors", tx_err_cnt),
 	HNS3_TQP_STAT("wake", restart_queue),
 	HNS3_TQP_STAT("busy", tx_busy),
+	HNS3_TQP_STAT("copy", tx_copy),
 };
 
 #define HNS3_TXQ_STATS_COUNT ARRAY_SIZE(hns3_txq_stats)
@@ -48,6 +49,7 @@ static const struct hns3_stats hns3_rxq_stats[] = {
 	HNS3_TQP_STAT("l2_err", l2_err),
 	HNS3_TQP_STAT("l3l4_csum_err", l3l4_csum_err),
 	HNS3_TQP_STAT("multicast", rx_multicast),
+	HNS3_TQP_STAT("non_reuse_pg", non_reuse_pg),
 };
 
 #define HNS3_RXQ_STATS_COUNT ARRAY_SIZE(hns3_rxq_stats)