[PATCH net-next 0/9] net: hns3: some cleanups for -next

[PATCH net-next 0/9] net: hns3: some cleanups for -next

[Guangbin Huang]

To improve code readability and simplicity, this series add 9 cleanup
patches for the HNS3 ethernet driver.

Jian Shen (3):
  net: hns3: split function hclge_init_vlan_config()
  net: hns3: split function hclge_get_fd_rule_info()
  net: hns3: split function hclge_update_port_base_vlan_cfg()

Jie Wang (3):
  net: hns3: refactor function hclge_configure()
  net: hns3: refactor function hclge_set_channels()
  net: hns3: refactor function hns3_get_vector_ring_chain()

Peng Li (2):
  net: hns3: extract macro to simplify ring stats update code
  net: hns3: refactor function hns3_fill_skb_desc to simplify code

Yufeng Mo (1):
  net: hns3: split function hns3_nic_net_xmit()

 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 430 ++++++++----------
 .../net/ethernet/hisilicon/hns3/hns3_enet.h   |   7 +
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 317 +++++++------
 3 files changed, 390 insertions(+), 364 deletions(-)

-- 
2.33.0

[PATCH net-next 1/9] net: hns3: extract macro to simplify ring stats update code

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

As the code to update ring stats is alike for different ring stats
type, this patch extract macro to simplify ring stats update code.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 123 +++++-------------
 .../net/ethernet/hisilicon/hns3/hns3_enet.h   |   7 +
 2 files changed, 38 insertions(+), 92 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 8c7707263f9d..d6336f803e36 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1002,9 +1002,7 @@ static bool hns3_can_use_tx_bounce(struct hns3_enet_ring *ring,
 		return false;
 
 	if (ALIGN(len, dma_get_cache_alignment()) > space) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.tx_spare_full++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, tx_spare_full);
 		return false;
 	}
 
@@ -1021,9 +1019,7 @@ static bool hns3_can_use_tx_sgl(struct hns3_enet_ring *ring,
 		return false;
 
 	if (space < HNS3_MAX_SGL_SIZE) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.tx_spare_full++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, tx_spare_full);
 		return false;
 	}
 
@@ -1562,9 +1558,7 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 
 	ret = hns3_handle_vtags(ring, skb);
 	if (unlikely(ret < 0)) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.tx_vlan_err++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, tx_vlan_err);
 		return ret;
 	} else if (ret == HNS3_INNER_VLAN_TAG) {
 		inner_vtag = skb_vlan_tag_get(skb);
@@ -1599,9 +1593,7 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 
 		ret = hns3_get_l4_protocol(skb, &ol4_proto, &il4_proto);
 		if (unlikely(ret < 0)) {
-			u64_stats_update_begin(&ring->syncp);
-			ring->stats.tx_l4_proto_err++;
-			u64_stats_update_end(&ring->syncp);
+			hns3_ring_stats_update(ring, tx_l4_proto_err);
 			return ret;
 		}
 
@@ -1609,18 +1601,14 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 				      &type_cs_vlan_tso,
 				      &ol_type_vlan_len_msec);
 		if (unlikely(ret < 0)) {
-			u64_stats_update_begin(&ring->syncp);
-			ring->stats.tx_l2l3l4_err++;
-			u64_stats_update_end(&ring->syncp);
+			hns3_ring_stats_update(ring, tx_l2l3l4_err);
 			return ret;
 		}
 
 		ret = hns3_set_tso(skb, &paylen_ol4cs, &mss_hw_csum,
 				   &type_cs_vlan_tso, &desc_cb->send_bytes);
 		if (unlikely(ret < 0)) {
-			u64_stats_update_begin(&ring->syncp);
-			ring->stats.tx_tso_err++;
-			u64_stats_update_end(&ring->syncp);
+			hns3_ring_stats_update(ring, tx_tso_err);
 			return ret;
 		}
 	}
@@ -1713,9 +1701,7 @@ static int hns3_map_and_fill_desc(struct hns3_enet_ring *ring, void *priv,
 	}
 
 	if (unlikely(dma_mapping_error(dev, dma))) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.sw_err_cnt++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, sw_err_cnt);
 		return -ENOMEM;
 	}
 
@@ -1861,9 +1847,7 @@ static int hns3_skb_linearize(struct hns3_enet_ring *ring,
 	 * recursion level of over HNS3_MAX_RECURSION_LEVEL.
 	 */
 	if (bd_num == UINT_MAX) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.over_max_recursion++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, over_max_recursion);
 		return -ENOMEM;
 	}
 
@@ -1872,16 +1856,12 @@ static int hns3_skb_linearize(struct hns3_enet_ring *ring,
 	 */
 	if (skb->len > HNS3_MAX_TSO_SIZE ||
 	    (!skb_is_gso(skb) && skb->len > HNS3_MAX_NON_TSO_SIZE)) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.hw_limitation++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, hw_limitation);
 		return -ENOMEM;
 	}
 
 	if (__skb_linearize(skb)) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.sw_err_cnt++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, sw_err_cnt);
 		return -ENOMEM;
 	}
 
@@ -1911,9 +1891,7 @@ static int hns3_nic_maybe_stop_tx(struct hns3_enet_ring *ring,
 
 		bd_num = hns3_tx_bd_count(skb->len);
 
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.tx_copy++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, tx_copy);
 	}
 
 out:
@@ -1933,9 +1911,7 @@ static int hns3_nic_maybe_stop_tx(struct hns3_enet_ring *ring,
 		return bd_num;
 	}
 
-	u64_stats_update_begin(&ring->syncp);
-	ring->stats.tx_busy++;
-	u64_stats_update_end(&ring->syncp);
+	hns3_ring_stats_update(ring, tx_busy);
 
 	return -EBUSY;
 }
@@ -2020,9 +1996,7 @@ static void hns3_tx_doorbell(struct hns3_enet_ring *ring, int num,
 	ring->pending_buf += num;
 
 	if (!doorbell) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.tx_more++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, tx_more);
 		return;
 	}
 
@@ -2072,9 +2046,7 @@ static int hns3_handle_tx_bounce(struct hns3_enet_ring *ring,
 	ret = skb_copy_bits(skb, 0, buf, size);
 	if (unlikely(ret < 0)) {
 		hns3_tx_spare_rollback(ring, cb_len);
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.copy_bits_err++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, copy_bits_err);
 		return ret;
 	}
 
@@ -2097,9 +2069,8 @@ static int hns3_handle_tx_bounce(struct hns3_enet_ring *ring,
 	dma_sync_single_for_device(ring_to_dev(ring), dma, size,
 				   DMA_TO_DEVICE);
 
-	u64_stats_update_begin(&ring->syncp);
-	ring->stats.tx_bounce++;
-	u64_stats_update_end(&ring->syncp);
+	hns3_ring_stats_update(ring, tx_bounce);
+
 	return bd_num;
 }
 
@@ -2129,9 +2100,7 @@ static int hns3_handle_tx_sgl(struct hns3_enet_ring *ring,
 	nents = skb_to_sgvec(skb, sgt->sgl, 0, skb->len);
 	if (unlikely(nents < 0)) {
 		hns3_tx_spare_rollback(ring, cb_len);
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.skb2sgl_err++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, skb2sgl_err);
 		return -ENOMEM;
 	}
 
@@ -2140,9 +2109,7 @@ static int hns3_handle_tx_sgl(struct hns3_enet_ring *ring,
 				DMA_TO_DEVICE);
 	if (unlikely(!sgt->nents)) {
 		hns3_tx_spare_rollback(ring, cb_len);
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.map_sg_err++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, map_sg_err);
 		return -ENOMEM;
 	}
 
@@ -2154,10 +2121,7 @@ static int hns3_handle_tx_sgl(struct hns3_enet_ring *ring,
 	for (i = 0; i < sgt->nents; i++)
 		bd_num += hns3_fill_desc(ring, sg_dma_address(sgt->sgl + i),
 					 sg_dma_len(sgt->sgl + i));
-
-	u64_stats_update_begin(&ring->syncp);
-	ring->stats.tx_sgl++;
-	u64_stats_update_end(&ring->syncp);
+	hns3_ring_stats_update(ring, tx_sgl);
 
 	return bd_num;
 }
@@ -2196,9 +2160,7 @@ netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 	if (skb_put_padto(skb, HNS3_MIN_TX_LEN)) {
 		hns3_tx_doorbell(ring, 0, !netdev_xmit_more());
 
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.sw_err_cnt++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, sw_err_cnt);
 
 		return NETDEV_TX_OK;
 	}
@@ -3522,17 +3484,13 @@ static bool hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
 	for (i = 0; i < cleand_count; i++) {
 		desc_cb = &ring->desc_cb[ring->next_to_use];
 		if (desc_cb->reuse_flag) {
-			u64_stats_update_begin(&ring->syncp);
-			ring->stats.reuse_pg_cnt++;
-			u64_stats_update_end(&ring->syncp);
+			hns3_ring_stats_update(ring, reuse_pg_cnt);
 
 			hns3_reuse_buffer(ring, ring->next_to_use);
 		} else {
 			ret = hns3_alloc_and_map_buffer(ring, &res_cbs);
 			if (ret) {
-				u64_stats_update_begin(&ring->syncp);
-				ring->stats.sw_err_cnt++;
-				u64_stats_update_end(&ring->syncp);
+				hns3_ring_stats_update(ring, sw_err_cnt);
 
 				hns3_rl_err(ring_to_netdev(ring),
 					    "alloc rx buffer failed: %d\n",
@@ -3544,9 +3502,7 @@ static bool hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
 			}
 			hns3_replace_buffer(ring, ring->next_to_use, &res_cbs);
 
-			u64_stats_update_begin(&ring->syncp);
-			ring->stats.non_reuse_pg++;
-			u64_stats_update_end(&ring->syncp);
+			hns3_ring_stats_update(ring, non_reuse_pg);
 		}
 
 		ring_ptr_move_fw(ring, next_to_use);
@@ -3573,9 +3529,7 @@ static int hns3_handle_rx_copybreak(struct sk_buff *skb, int i,
 	void *frag = napi_alloc_frag(frag_size);
 
 	if (unlikely(!frag)) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.frag_alloc_err++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, frag_alloc_err);
 
 		hns3_rl_err(ring_to_netdev(ring),
 			    "failed to allocate rx frag\n");
@@ -3587,9 +3541,7 @@ static int hns3_handle_rx_copybreak(struct sk_buff *skb, int i,
 	skb_add_rx_frag(skb, i, virt_to_page(frag),
 			offset_in_page(frag), frag_size, frag_size);
 
-	u64_stats_update_begin(&ring->syncp);
-	ring->stats.frag_alloc++;
-	u64_stats_update_end(&ring->syncp);
+	hns3_ring_stats_update(ring, frag_alloc);
 	return 0;
 }
 
@@ -3722,9 +3674,7 @@ static bool hns3_checksum_complete(struct hns3_enet_ring *ring,
 	    hns3_rx_ptype_tbl[ptype].ip_summed != CHECKSUM_COMPLETE)
 		return false;
 
-	u64_stats_update_begin(&ring->syncp);
-	ring->stats.csum_complete++;
-	u64_stats_update_end(&ring->syncp);
+	hns3_ring_stats_update(ring, csum_complete);
 	skb->ip_summed = CHECKSUM_COMPLETE;
 	skb->csum = csum_unfold((__force __sum16)csum);
 
@@ -3798,9 +3748,7 @@ static void hns3_rx_checksum(struct hns3_enet_ring *ring, struct sk_buff *skb,
 	if (unlikely(l234info & (BIT(HNS3_RXD_L3E_B) | BIT(HNS3_RXD_L4E_B) |
 				 BIT(HNS3_RXD_OL3E_B) |
 				 BIT(HNS3_RXD_OL4E_B)))) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.l3l4_csum_err++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, l3l4_csum_err);
 
 		return;
 	}
@@ -3891,10 +3839,7 @@ static int hns3_alloc_skb(struct hns3_enet_ring *ring, unsigned int length,
 	skb = ring->skb;
 	if (unlikely(!skb)) {
 		hns3_rl_err(netdev, "alloc rx skb fail\n");
-
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.sw_err_cnt++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, sw_err_cnt);
 
 		return -ENOMEM;
 	}
@@ -3925,9 +3870,7 @@ static int hns3_alloc_skb(struct hns3_enet_ring *ring, unsigned int length,
 	if (ring->page_pool)
 		skb_mark_for_recycle(skb);
 
-	u64_stats_update_begin(&ring->syncp);
-	ring->stats.seg_pkt_cnt++;
-	u64_stats_update_end(&ring->syncp);
+	hns3_ring_stats_update(ring, seg_pkt_cnt);
 
 	ring->pull_len = eth_get_headlen(netdev, va, HNS3_RX_HEAD_SIZE);
 	__skb_put(skb, ring->pull_len);
@@ -4135,9 +4078,7 @@ static int hns3_handle_bdinfo(struct hns3_enet_ring *ring, struct sk_buff *skb)
 	ret = hns3_set_gro_and_checksum(ring, skb, l234info,
 					bd_base_info, ol_info, csum);
 	if (unlikely(ret)) {
-		u64_stats_update_begin(&ring->syncp);
-		ring->stats.rx_err_cnt++;
-		u64_stats_update_end(&ring->syncp);
+		hns3_ring_stats_update(ring, rx_err_cnt);
 		return ret;
 	}
 
@@ -5347,9 +5288,7 @@ static int hns3_clear_rx_ring(struct hns3_enet_ring *ring)
 		if (!ring->desc_cb[ring->next_to_use].reuse_flag) {
 			ret = hns3_alloc_and_map_buffer(ring, &res_cbs);
 			if (ret) {
-				u64_stats_update_begin(&ring->syncp);
-				ring->stats.sw_err_cnt++;
-				u64_stats_update_end(&ring->syncp);
+				hns3_ring_stats_update(ring, sw_err_cnt);
 				/* if alloc new buffer fail, exit directly
 				 * and reclear in up flow.
 				 */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 808405cc0280..2803b2cd7f30 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -660,6 +660,13 @@ static inline bool hns3_nic_resetting(struct net_device *netdev)
 
 #define hns3_buf_size(_ring) ((_ring)->buf_size)
 
+#define hns3_ring_stats_update(ring, cnt) do { \
+	typeof(ring) (tmp) = (ring); \
+	u64_stats_update_begin(&(tmp)->syncp); \
+	((tmp)->stats.cnt)++; \
+	u64_stats_update_end(&(tmp)->syncp); \
+} while (0) \
+
 static inline unsigned int hns3_page_order(struct hns3_enet_ring *ring)
 {
 #if (PAGE_SIZE < 8192)
-- 
2.33.0

[PATCH net-next 2/9] net: hns3: refactor function hns3_fill_skb_desc to simplify code

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

The function hns3_fill_skb_desc is hard to read, this patch
extract 2 functions and add new a struct data to simplify the
code and Improve readability.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 147 +++++++++++-------
 1 file changed, 93 insertions(+), 54 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index d6336f803e36..a6e12d81949e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1544,16 +1544,29 @@ static bool hns3_check_hw_tx_csum(struct sk_buff *skb)
 	return true;
 }
 
-static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
-			      struct sk_buff *skb, struct hns3_desc *desc,
-			      struct hns3_desc_cb *desc_cb)
+struct hns3_desc_param {
+	u32 paylen_ol4cs;
+	u32 ol_type_vlan_len_msec;
+	u32 type_cs_vlan_tso;
+	u16 mss_hw_csum;
+	u16 inner_vtag;
+	u16 out_vtag;
+};
+
+static void hns3_init_desc_data(struct sk_buff *skb, struct hns3_desc_param *pa)
+{
+	pa->paylen_ol4cs = skb->len;
+	pa->ol_type_vlan_len_msec = 0;
+	pa->type_cs_vlan_tso = 0;
+	pa->mss_hw_csum = 0;
+	pa->inner_vtag = 0;
+	pa->out_vtag = 0;
+}
+
+static int hns3_handle_vlan_info(struct hns3_enet_ring *ring,
+				 struct sk_buff *skb,
+				 struct hns3_desc_param *param)
 {
-	u32 ol_type_vlan_len_msec = 0;
-	u32 paylen_ol4cs = skb->len;
-	u32 type_cs_vlan_tso = 0;
-	u16 mss_hw_csum = 0;
-	u16 inner_vtag = 0;
-	u16 out_vtag = 0;
 	int ret;
 
 	ret = hns3_handle_vtags(ring, skb);
@@ -1561,67 +1574,93 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 		hns3_ring_stats_update(ring, tx_vlan_err);
 		return ret;
 	} else if (ret == HNS3_INNER_VLAN_TAG) {
-		inner_vtag = skb_vlan_tag_get(skb);
-		inner_vtag |= (skb->priority << VLAN_PRIO_SHIFT) &
+		param->inner_vtag = skb_vlan_tag_get(skb);
+		param->inner_vtag |= (skb->priority << VLAN_PRIO_SHIFT) &
 				VLAN_PRIO_MASK;
-		hns3_set_field(type_cs_vlan_tso, HNS3_TXD_VLAN_B, 1);
+		hns3_set_field(param->type_cs_vlan_tso, HNS3_TXD_VLAN_B, 1);
 	} else if (ret == HNS3_OUTER_VLAN_TAG) {
-		out_vtag = skb_vlan_tag_get(skb);
-		out_vtag |= (skb->priority << VLAN_PRIO_SHIFT) &
+		param->out_vtag = skb_vlan_tag_get(skb);
+		param->out_vtag |= (skb->priority << VLAN_PRIO_SHIFT) &
 				VLAN_PRIO_MASK;
-		hns3_set_field(ol_type_vlan_len_msec, HNS3_TXD_OVLAN_B,
+		hns3_set_field(param->ol_type_vlan_len_msec, HNS3_TXD_OVLAN_B,
 			       1);
 	}
+	return 0;
+}
 
-	desc_cb->send_bytes = skb->len;
+static int hns3_handle_csum_partial(struct hns3_enet_ring *ring,
+				    struct sk_buff *skb,
+				    struct hns3_desc_cb *desc_cb,
+				    struct hns3_desc_param *param)
+{
+	u8 ol4_proto, il4_proto;
+	int ret;
 
-	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-		u8 ol4_proto, il4_proto;
-
-		if (hns3_check_hw_tx_csum(skb)) {
-			/* set checksum start and offset, defined in 2 Bytes */
-			hns3_set_field(type_cs_vlan_tso, HNS3_TXD_CSUM_START_S,
-				       skb_checksum_start_offset(skb) >> 1);
-			hns3_set_field(ol_type_vlan_len_msec,
-				       HNS3_TXD_CSUM_OFFSET_S,
-				       skb->csum_offset >> 1);
-			mss_hw_csum |= BIT(HNS3_TXD_HW_CS_B);
-			goto out_hw_tx_csum;
-		}
+	if (hns3_check_hw_tx_csum(skb)) {
+		/* set checksum start and offset, defined in 2 Bytes */
+		hns3_set_field(param->type_cs_vlan_tso, HNS3_TXD_CSUM_START_S,
+			       skb_checksum_start_offset(skb) >> 1);
+		hns3_set_field(param->ol_type_vlan_len_msec,
+			       HNS3_TXD_CSUM_OFFSET_S,
+			       skb->csum_offset >> 1);
+		param->mss_hw_csum |= BIT(HNS3_TXD_HW_CS_B);
+		return 0;
+	}
 
-		skb_reset_mac_len(skb);
+	skb_reset_mac_len(skb);
 
-		ret = hns3_get_l4_protocol(skb, &ol4_proto, &il4_proto);
-		if (unlikely(ret < 0)) {
-			hns3_ring_stats_update(ring, tx_l4_proto_err);
-			return ret;
-		}
+	ret = hns3_get_l4_protocol(skb, &ol4_proto, &il4_proto);
+	if (unlikely(ret < 0)) {
+		hns3_ring_stats_update(ring, tx_l4_proto_err);
+		return ret;
+	}
 
-		ret = hns3_set_l2l3l4(skb, ol4_proto, il4_proto,
-				      &type_cs_vlan_tso,
-				      &ol_type_vlan_len_msec);
-		if (unlikely(ret < 0)) {
-			hns3_ring_stats_update(ring, tx_l2l3l4_err);
-			return ret;
-		}
+	ret = hns3_set_l2l3l4(skb, ol4_proto, il4_proto,
+			      &param->type_cs_vlan_tso,
+			      &param->ol_type_vlan_len_msec);
+	if (unlikely(ret < 0)) {
+		hns3_ring_stats_update(ring, tx_l2l3l4_err);
+		return ret;
+	}
+
+	ret = hns3_set_tso(skb, &param->paylen_ol4cs, &param->mss_hw_csum,
+			   &param->type_cs_vlan_tso, &desc_cb->send_bytes);
+	if (unlikely(ret < 0)) {
+		hns3_ring_stats_update(ring, tx_tso_err);
+		return ret;
+	}
+	return 0;
+}
 
-		ret = hns3_set_tso(skb, &paylen_ol4cs, &mss_hw_csum,
-				   &type_cs_vlan_tso, &desc_cb->send_bytes);
-		if (unlikely(ret < 0)) {
-			hns3_ring_stats_update(ring, tx_tso_err);
+static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
+			      struct sk_buff *skb, struct hns3_desc *desc,
+			      struct hns3_desc_cb *desc_cb)
+{
+	struct hns3_desc_param param;
+	u8 fd_op;
+	int ret;
+
+	hns3_init_desc_data(skb, &param);
+	ret = hns3_handle_vlan_info(ring, skb, &param);
+	if (unlikely(ret < 0))
+		return ret;
+
+	desc_cb->send_bytes = skb->len;
+
+	if (skb->ip_summed == CHECKSUM_PARTIAL) {
+		ret = hns3_handle_csum_partial(ring, skb, desc_cb, &param);
+		if (ret)
 			return ret;
-		}
 	}
 
-out_hw_tx_csum:
 	/* Set txbd */
 	desc->tx.ol_type_vlan_len_msec =
-		cpu_to_le32(ol_type_vlan_len_msec);
-	desc->tx.type_cs_vlan_tso_len = cpu_to_le32(type_cs_vlan_tso);
-	desc->tx.paylen_ol4cs = cpu_to_le32(paylen_ol4cs);
-	desc->tx.mss_hw_csum = cpu_to_le16(mss_hw_csum);
-	desc->tx.vlan_tag = cpu_to_le16(inner_vtag);
-	desc->tx.outer_vlan_tag = cpu_to_le16(out_vtag);
+		cpu_to_le32(param.ol_type_vlan_len_msec);
+	desc->tx.type_cs_vlan_tso_len = cpu_to_le32(param.type_cs_vlan_tso);
+	desc->tx.paylen_ol4cs = cpu_to_le32(param.paylen_ol4cs);
+	desc->tx.mss_hw_csum = cpu_to_le16(param.mss_hw_csum);
+	desc->tx.vlan_tag = cpu_to_le16(param.inner_vtag);
+	desc->tx.outer_vlan_tag = cpu_to_le16(param.out_vtag);
 
 	return 0;
 }
-- 
2.33.0

[PATCH net-next 3/9] net: hns3: split function hclge_init_vlan_config()

[Guangbin Huang]

From: Jian Shen <shenjian15@huawei.com>

Currently the function hclge_init_vlan_config() is a bit long.
Split it to several small functions, to simplify code and
improve code readability.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 97 +++++++++++--------
 1 file changed, 55 insertions(+), 42 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 7de4c56ef014..fd8988d77d06 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -10194,67 +10194,80 @@ static int hclge_set_vlan_protocol_type(struct hclge_dev *hdev)
 	return status;
 }
 
-static int hclge_init_vlan_config(struct hclge_dev *hdev)
+static int hclge_init_vlan_filter(struct hclge_dev *hdev)
 {
-#define HCLGE_DEF_VLAN_TYPE		0x8100
-
-	struct hnae3_handle *handle = &hdev->vport[0].nic;
 	struct hclge_vport *vport;
 	int ret;
 	int i;
 
-	if (hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V2) {
-		/* for revision 0x21, vf vlan filter is per function */
-		for (i = 0; i < hdev->num_alloc_vport; i++) {
-			vport = &hdev->vport[i];
-			ret = hclge_set_vlan_filter_ctrl(hdev,
-							 HCLGE_FILTER_TYPE_VF,
-							 HCLGE_FILTER_FE_EGRESS,
-							 true,
-							 vport->vport_id);
-			if (ret)
-				return ret;
-			vport->cur_vlan_fltr_en = true;
-		}
+	if (hdev->ae_dev->dev_version < HNAE3_DEVICE_VERSION_V2)
+		return hclge_set_vlan_filter_ctrl(hdev, HCLGE_FILTER_TYPE_VF,
+						  HCLGE_FILTER_FE_EGRESS_V1_B,
+						  true, 0);
 
-		ret = hclge_set_vlan_filter_ctrl(hdev, HCLGE_FILTER_TYPE_PORT,
-						 HCLGE_FILTER_FE_INGRESS, true,
-						 0);
-		if (ret)
-			return ret;
-	} else {
+	/* for revision 0x21, vf vlan filter is per function */
+	for (i = 0; i < hdev->num_alloc_vport; i++) {
+		vport = &hdev->vport[i];
 		ret = hclge_set_vlan_filter_ctrl(hdev, HCLGE_FILTER_TYPE_VF,
-						 HCLGE_FILTER_FE_EGRESS_V1_B,
-						 true, 0);
+						 HCLGE_FILTER_FE_EGRESS, true,
+						 vport->vport_id);
 		if (ret)
 			return ret;
+		vport->cur_vlan_fltr_en = true;
 	}
 
-	hdev->vlan_type_cfg.rx_in_fst_vlan_type = HCLGE_DEF_VLAN_TYPE;
-	hdev->vlan_type_cfg.rx_in_sec_vlan_type = HCLGE_DEF_VLAN_TYPE;
-	hdev->vlan_type_cfg.rx_ot_fst_vlan_type = HCLGE_DEF_VLAN_TYPE;
-	hdev->vlan_type_cfg.rx_ot_sec_vlan_type = HCLGE_DEF_VLAN_TYPE;
-	hdev->vlan_type_cfg.tx_ot_vlan_type = HCLGE_DEF_VLAN_TYPE;
-	hdev->vlan_type_cfg.tx_in_vlan_type = HCLGE_DEF_VLAN_TYPE;
+	return hclge_set_vlan_filter_ctrl(hdev, HCLGE_FILTER_TYPE_PORT,
+					  HCLGE_FILTER_FE_INGRESS, true, 0);
+}
 
-	ret = hclge_set_vlan_protocol_type(hdev);
-	if (ret)
-		return ret;
+static int hclge_init_vlan_type(struct hclge_dev *hdev)
+{
+	hdev->vlan_type_cfg.rx_in_fst_vlan_type = ETH_P_8021Q;
+	hdev->vlan_type_cfg.rx_in_sec_vlan_type = ETH_P_8021Q;
+	hdev->vlan_type_cfg.rx_ot_fst_vlan_type = ETH_P_8021Q;
+	hdev->vlan_type_cfg.rx_ot_sec_vlan_type = ETH_P_8021Q;
+	hdev->vlan_type_cfg.tx_ot_vlan_type = ETH_P_8021Q;
+	hdev->vlan_type_cfg.tx_in_vlan_type = ETH_P_8021Q;
 
-	for (i = 0; i < hdev->num_alloc_vport; i++) {
-		u16 vlan_tag;
-		u8 qos;
+	return hclge_set_vlan_protocol_type(hdev);
+}
 
+static int hclge_init_vport_vlan_offload(struct hclge_dev *hdev)
+{
+	struct hclge_port_base_vlan_config *cfg;
+	struct hclge_vport *vport;
+	int ret;
+	int i;
+
+	for (i = 0; i < hdev->num_alloc_vport; i++) {
 		vport = &hdev->vport[i];
-		vlan_tag = vport->port_base_vlan_cfg.vlan_info.vlan_tag;
-		qos = vport->port_base_vlan_cfg.vlan_info.qos;
+		cfg = &vport->port_base_vlan_cfg;
 
-		ret = hclge_vlan_offload_cfg(vport,
-					     vport->port_base_vlan_cfg.state,
-					     vlan_tag, qos);
+		ret = hclge_vlan_offload_cfg(vport, cfg->state,
+					     cfg->vlan_info.vlan_tag,
+					     cfg->vlan_info.qos);
 		if (ret)
 			return ret;
 	}
+	return 0;
+}
+
+static int hclge_init_vlan_config(struct hclge_dev *hdev)
+{
+	struct hnae3_handle *handle = &hdev->vport[0].nic;
+	int ret;
+
+	ret = hclge_init_vlan_filter(hdev);
+	if (ret)
+		return ret;
+
+	ret = hclge_init_vlan_type(hdev);
+	if (ret)
+		return ret;
+
+	ret = hclge_init_vport_vlan_offload(hdev);
+	if (ret)
+		return ret;
 
 	return hclge_set_vlan_filter(handle, htons(ETH_P_8021Q), 0, false);
 }
-- 
2.33.0

[PATCH net-next 4/9] net: hns3: split function hclge_get_fd_rule_info()

[Guangbin Huang]

From: Jian Shen <shenjian15@huawei.com>

Currently the function hclge_get_fd_rule_info() is a bit long.
Split it to several small functions, to improve readability.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 52 ++++++++++++-------
 1 file changed, 34 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index fd8988d77d06..b691f306138a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -7172,6 +7172,37 @@ static void hclge_fd_get_ext_info(struct ethtool_rx_flow_spec *fs,
 	}
 }
 
+static struct hclge_fd_rule *hclge_get_fd_rule(struct hclge_dev *hdev,
+					       u16 location)
+{
+	struct hclge_fd_rule *rule = NULL;
+	struct hlist_node *node2;
+
+	hlist_for_each_entry_safe(rule, node2, &hdev->fd_rule_list, rule_node) {
+		if (rule->location == location)
+			return rule;
+		else if (rule->location > location)
+			return NULL;
+	}
+
+	return NULL;
+}
+
+static void hclge_fd_get_ring_cookie(struct ethtool_rx_flow_spec *fs,
+				     struct hclge_fd_rule *rule)
+{
+	if (rule->action == HCLGE_FD_ACTION_DROP_PACKET) {
+		fs->ring_cookie = RX_CLS_FLOW_DISC;
+	} else {
+		u64 vf_id;
+
+		fs->ring_cookie = rule->queue_id;
+		vf_id = rule->vf_id;
+		vf_id <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
+		fs->ring_cookie |= vf_id;
+	}
+}
+
 static int hclge_get_fd_rule_info(struct hnae3_handle *handle,
 				  struct ethtool_rxnfc *cmd)
 {
@@ -7179,7 +7210,6 @@ static int hclge_get_fd_rule_info(struct hnae3_handle *handle,
 	struct hclge_fd_rule *rule = NULL;
 	struct hclge_dev *hdev = vport->back;
 	struct ethtool_rx_flow_spec *fs;
-	struct hlist_node *node2;
 
 	if (!hnae3_dev_fd_supported(hdev))
 		return -EOPNOTSUPP;
@@ -7188,14 +7218,9 @@ static int hclge_get_fd_rule_info(struct hnae3_handle *handle,
 
 	spin_lock_bh(&hdev->fd_rule_lock);
 
-	hlist_for_each_entry_safe(rule, node2, &hdev->fd_rule_list, rule_node) {
-		if (rule->location >= fs->location)
-			break;
-	}
-
-	if (!rule || fs->location != rule->location) {
+	rule = hclge_get_fd_rule(hdev, fs->location);
+	if (!rule) {
 		spin_unlock_bh(&hdev->fd_rule_lock);
-
 		return -ENOENT;
 	}
 
@@ -7233,16 +7258,7 @@ static int hclge_get_fd_rule_info(struct hnae3_handle *handle,
 
 	hclge_fd_get_ext_info(fs, rule);
 
-	if (rule->action == HCLGE_FD_ACTION_DROP_PACKET) {
-		fs->ring_cookie = RX_CLS_FLOW_DISC;
-	} else {
-		u64 vf_id;
-
-		fs->ring_cookie = rule->queue_id;
-		vf_id = rule->vf_id;
-		vf_id <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
-		fs->ring_cookie |= vf_id;
-	}
+	hclge_fd_get_ring_cookie(fs, rule);
 
 	spin_unlock_bh(&hdev->fd_rule_lock);
 
-- 
2.33.0

[PATCH net-next 5/9] net: hns3: split function hns3_nic_net_xmit()

[Guangbin Huang]

From: Yufeng Mo <moyufeng@huawei.com>

Function hns3_nic_net_xmit() is a bit too long. So add a
new function hns3_handle_skb_desc() to simplify code and improve
code readability.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 47 +++++++++++--------
 1 file changed, 28 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index a6e12d81949e..8dcc2d80553b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1637,7 +1637,6 @@ static int hns3_fill_skb_desc(struct hns3_enet_ring *ring,
 			      struct hns3_desc_cb *desc_cb)
 {
 	struct hns3_desc_param param;
-	u8 fd_op;
 	int ret;
 
 	hns3_init_desc_data(skb, &param);
@@ -2185,15 +2184,39 @@ static int hns3_handle_desc_filling(struct hns3_enet_ring *ring,
 	return hns3_fill_skb_to_desc(ring, skb, DESC_TYPE_SKB);
 }
 
+static int hns3_handle_skb_desc(struct hns3_enet_ring *ring,
+				struct sk_buff *skb,
+				struct hns3_desc_cb *desc_cb,
+				int next_to_use_head)
+{
+	int ret;
+
+	ret = hns3_fill_skb_desc(ring, skb, &ring->desc[ring->next_to_use],
+				 desc_cb);
+	if (unlikely(ret < 0))
+		goto fill_err;
+
+	/* 'ret < 0' means filling error, 'ret == 0' means skb->len is
+	 * zero, which is unlikely, and 'ret > 0' means how many tx desc
+	 * need to be notified to the hw.
+	 */
+	ret = hns3_handle_desc_filling(ring, skb);
+	if (likely(ret > 0))
+		return ret;
+
+fill_err:
+	hns3_clear_desc(ring, next_to_use_head);
+	return ret;
+}
+
 netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	struct hns3_enet_ring *ring = &priv->ring[skb->queue_mapping];
 	struct hns3_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_use];
 	struct netdev_queue *dev_queue;
-	int pre_ntu, next_to_use_head;
+	int pre_ntu, ret;
 	bool doorbell;
-	int ret;
 
 	/* Hardware can only handle short frames above 32 bytes */
 	if (skb_put_padto(skb, HNS3_MIN_TX_LEN)) {
@@ -2218,20 +2241,9 @@ netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 		goto out_err_tx_ok;
 	}
 
-	next_to_use_head = ring->next_to_use;
-
-	ret = hns3_fill_skb_desc(ring, skb, &ring->desc[ring->next_to_use],
-				 desc_cb);
-	if (unlikely(ret < 0))
-		goto fill_err;
-
-	/* 'ret < 0' means filling error, 'ret == 0' means skb->len is
-	 * zero, which is unlikely, and 'ret > 0' means how many tx desc
-	 * need to be notified to the hw.
-	 */
-	ret = hns3_handle_desc_filling(ring, skb);
+	ret = hns3_handle_skb_desc(ring, skb, desc_cb, ring->next_to_use);
 	if (unlikely(ret <= 0))
-		goto fill_err;
+		goto out_err_tx_ok;
 
 	pre_ntu = ring->next_to_use ? (ring->next_to_use - 1) :
 					(ring->desc_num - 1);
@@ -2253,9 +2265,6 @@ netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev)
 
 	return NETDEV_TX_OK;
 
-fill_err:
-	hns3_clear_desc(ring, next_to_use_head);
-
 out_err_tx_ok:
 	dev_kfree_skb_any(skb);
 	hns3_tx_doorbell(ring, 0, !netdev_xmit_more());
-- 
2.33.0

[PATCH net-next 6/9] net: hns3: split function hclge_update_port_base_vlan_cfg()

[Guangbin Huang]

From: Jian Shen <shenjian15@huawei.com>

Currently the function hclge_update_port_base_vlan_cfg() is a
bit long. Split it to several small functions, to improve the
readability.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 69 ++++++++++---------
 1 file changed, 36 insertions(+), 33 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index b691f306138a..4a52d18f4166 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -10540,12 +10540,41 @@ static bool hclge_need_update_vlan_filter(const struct hclge_vlan_info *new_cfg,
 	return false;
 }
 
+static int hclge_modify_port_base_vlan_tag(struct hclge_vport *vport,
+					   struct hclge_vlan_info *new_info,
+					   struct hclge_vlan_info *old_info)
+{
+	struct hclge_dev *hdev = vport->back;
+	int ret;
+
+	/* add new VLAN tag */
+	ret = hclge_set_vlan_filter_hw(hdev, htons(new_info->vlan_proto),
+				       vport->vport_id, new_info->vlan_tag,
+				       false);
+	if (ret)
+		return ret;
+
+	/* remove old VLAN tag */
+	if (old_info->vlan_tag == 0)
+		ret = hclge_set_vf_vlan_common(hdev, vport->vport_id,
+					       true, 0);
+	else
+		ret = hclge_set_vlan_filter_hw(hdev, htons(ETH_P_8021Q),
+					       vport->vport_id,
+					       old_info->vlan_tag, true);
+	if (ret)
+		dev_err(&hdev->pdev->dev,
+			"failed to clear vport%u port base vlan %u, ret = %d.\n",
+			vport->vport_id, old_info->vlan_tag, ret);
+
+	return ret;
+}
+
 int hclge_update_port_base_vlan_cfg(struct hclge_vport *vport, u16 state,
 				    struct hclge_vlan_info *vlan_info)
 {
 	struct hnae3_handle *nic = &vport->nic;
 	struct hclge_vlan_info *old_vlan_info;
-	struct hclge_dev *hdev = vport->back;
 	int ret;
 
 	old_vlan_info = &vport->port_base_vlan_cfg.vlan_info;
@@ -10558,38 +10587,12 @@ int hclge_update_port_base_vlan_cfg(struct hclge_vport *vport, u16 state,
 	if (!hclge_need_update_vlan_filter(vlan_info, old_vlan_info))
 		goto out;
 
-	if (state == HNAE3_PORT_BASE_VLAN_MODIFY) {
-		/* add new VLAN tag */
-		ret = hclge_set_vlan_filter_hw(hdev,
-					       htons(vlan_info->vlan_proto),
-					       vport->vport_id,
-					       vlan_info->vlan_tag,
-					       false);
-		if (ret)
-			return ret;
-
-		/* remove old VLAN tag */
-		if (old_vlan_info->vlan_tag == 0)
-			ret = hclge_set_vf_vlan_common(hdev, vport->vport_id,
-						       true, 0);
-		else
-			ret = hclge_set_vlan_filter_hw(hdev,
-						       htons(ETH_P_8021Q),
-						       vport->vport_id,
-						       old_vlan_info->vlan_tag,
-						       true);
-		if (ret) {
-			dev_err(&hdev->pdev->dev,
-				"failed to clear vport%u port base vlan %u, ret = %d.\n",
-				vport->vport_id, old_vlan_info->vlan_tag, ret);
-			return ret;
-		}
-
-		goto out;
-	}
-
-	ret = hclge_update_vlan_filter_entries(vport, state, vlan_info,
-					       old_vlan_info);
+	if (state == HNAE3_PORT_BASE_VLAN_MODIFY)
+		ret = hclge_modify_port_base_vlan_tag(vport, vlan_info,
+						      old_vlan_info);
+	else
+		ret = hclge_update_vlan_filter_entries(vport, state, vlan_info,
+						       old_vlan_info);
 	if (ret)
 		return ret;
 
-- 
2.33.0

[PATCH net-next 7/9] net: hns3: refactor function hclge_configure()

[Guangbin Huang]

From: Jie Wang <wangjie125@huawei.com>

Currently  hclge_configure() is a bit long. Refactor it by extracting sub
process to improve the readability.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 53 ++++++++++---------
 1 file changed, 29 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 4a52d18f4166..996ba57b8155 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1613,12 +1613,39 @@ static void hclge_init_kdump_kernel_config(struct hclge_dev *hdev)
 	hdev->num_rx_desc = HCLGE_MIN_RX_DESC;
 }
 
+static void hclge_init_tc_config(struct hclge_dev *hdev)
+{
+	unsigned int i;
+
+	if (hdev->tc_max > HNAE3_MAX_TC ||
+	    hdev->tc_max < 1) {
+		dev_warn(&hdev->pdev->dev, "TC num = %u.\n",
+			 hdev->tc_max);
+		hdev->tc_max = 1;
+	}
+
+	/* Dev does not support DCB */
+	if (!hnae3_dev_dcb_supported(hdev)) {
+		hdev->tc_max = 1;
+		hdev->pfc_max = 0;
+	} else {
+		hdev->pfc_max = hdev->tc_max;
+	}
+
+	hdev->tm_info.num_tc = 1;
+
+	/* Currently not support uncontiuous tc */
+	for (i = 0; i < hdev->tm_info.num_tc; i++)
+		hnae3_set_bit(hdev->hw_tc_map, i, 1);
+
+	hdev->tx_sch_mode = HCLGE_FLAG_TC_BASE_SCH_MODE;
+}
+
 static int hclge_configure(struct hclge_dev *hdev)
 {
 	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(hdev->pdev);
 	const struct cpumask *cpumask = cpu_online_mask;
 	struct hclge_cfg cfg;
-	unsigned int i;
 	int node, ret;
 
 	ret = hclge_get_cfg(hdev, &cfg);
@@ -1662,29 +1689,7 @@ static int hclge_configure(struct hclge_dev *hdev)
 
 	hdev->hw.mac.max_speed = hclge_get_max_speed(cfg.speed_ability);
 
-	if ((hdev->tc_max > HNAE3_MAX_TC) ||
-	    (hdev->tc_max < 1)) {
-		dev_warn(&hdev->pdev->dev, "TC num = %u.\n",
-			 hdev->tc_max);
-		hdev->tc_max = 1;
-	}
-
-	/* Dev does not support DCB */
-	if (!hnae3_dev_dcb_supported(hdev)) {
-		hdev->tc_max = 1;
-		hdev->pfc_max = 0;
-	} else {
-		hdev->pfc_max = hdev->tc_max;
-	}
-
-	hdev->tm_info.num_tc = 1;
-
-	/* Currently not support uncontiuous tc */
-	for (i = 0; i < hdev->tm_info.num_tc; i++)
-		hnae3_set_bit(hdev->hw_tc_map, i, 1);
-
-	hdev->tx_sch_mode = HCLGE_FLAG_TC_BASE_SCH_MODE;
-
+	hclge_init_tc_config(hdev);
 	hclge_init_kdump_kernel_config(hdev);
 
 	/* Set the affinity based on numa node */
-- 
2.33.0

[PATCH net-next 8/9] net: hns3: refactor function hclge_set_channels()

[Guangbin Huang]

From: Jie Wang <wangjie125@huawei.com>

Currently  hclge_set_channels() is a bit long. Refactor it by extracting
sub process to improve the readability.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 46 +++++++++++--------
 1 file changed, 28 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 996ba57b8155..7d3a4dc793c7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -12347,19 +12347,42 @@ static void hclge_get_tqps_and_rss_info(struct hnae3_handle *handle,
 	*max_rss_size = hdev->pf_rss_size_max;
 }
 
+static int hclge_set_rss_tc_mode_cfg(struct hnae3_handle *handle)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	u16 tc_offset[HCLGE_MAX_TC_NUM] = {0};
+	struct hclge_dev *hdev = vport->back;
+	u16 tc_size[HCLGE_MAX_TC_NUM] = {0};
+	u16 tc_valid[HCLGE_MAX_TC_NUM];
+	u16 roundup_size;
+	unsigned int i;
+
+	roundup_size = roundup_pow_of_two(vport->nic.kinfo.rss_size);
+	roundup_size = ilog2(roundup_size);
+	/* Set the RSS TC mode according to the new RSS size */
+	for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
+		tc_valid[i] = 0;
+
+		if (!(hdev->hw_tc_map & BIT(i)))
+			continue;
+
+		tc_valid[i] = 1;
+		tc_size[i] = roundup_size;
+		tc_offset[i] = vport->nic.kinfo.rss_size * i;
+	}
+
+	return hclge_set_rss_tc_mode(hdev, tc_valid, tc_size, tc_offset);
+}
+
 static int hclge_set_channels(struct hnae3_handle *handle, u32 new_tqps_num,
 			      bool rxfh_configured)
 {
 	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(handle->pdev);
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo;
-	u16 tc_offset[HCLGE_MAX_TC_NUM] = {0};
 	struct hclge_dev *hdev = vport->back;
-	u16 tc_size[HCLGE_MAX_TC_NUM] = {0};
 	u16 cur_rss_size = kinfo->rss_size;
 	u16 cur_tqps = kinfo->num_tqps;
-	u16 tc_valid[HCLGE_MAX_TC_NUM];
-	u16 roundup_size;
 	u32 *rss_indir;
 	unsigned int i;
 	int ret;
@@ -12372,20 +12395,7 @@ static int hclge_set_channels(struct hnae3_handle *handle, u32 new_tqps_num,
 		return ret;
 	}
 
-	roundup_size = roundup_pow_of_two(kinfo->rss_size);
-	roundup_size = ilog2(roundup_size);
-	/* Set the RSS TC mode according to the new RSS size */
-	for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
-		tc_valid[i] = 0;
-
-		if (!(hdev->hw_tc_map & BIT(i)))
-			continue;
-
-		tc_valid[i] = 1;
-		tc_size[i] = roundup_size;
-		tc_offset[i] = kinfo->rss_size * i;
-	}
-	ret = hclge_set_rss_tc_mode(hdev, tc_valid, tc_size, tc_offset);
+	ret = hclge_set_rss_tc_mode_cfg(handle);
 	if (ret)
 		return ret;
 
-- 
2.33.0

[PATCH net-next 9/9] net: hns3: refactor function hns3_get_vector_ring_chain()

[Guangbin Huang]

From: Jie Wang <wangjie125@huawei.com>

Currently  hns3_get_vector_ring_chain() is a bit long. Refactor it by
extracting sub process to improve the readability.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 121 ++++++++----------
 1 file changed, 53 insertions(+), 68 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 8dcc2d80553b..babc5d7a3b52 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -4342,87 +4342,70 @@ static int hns3_nic_common_poll(struct napi_struct *napi, int budget)
 	return rx_pkt_total;
 }
 
-static int hns3_get_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
-				      struct hnae3_ring_chain_node *head)
+static int hns3_create_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
+				  struct hnae3_ring_chain_node **head,
+				  bool is_tx)
 {
+	u32 bit_value = is_tx ? HNAE3_RING_TYPE_TX : HNAE3_RING_TYPE_RX;
+	u32 field_value = is_tx ? HNAE3_RING_GL_TX : HNAE3_RING_GL_RX;
+	struct hnae3_ring_chain_node *cur_chain = *head;
 	struct pci_dev *pdev = tqp_vector->handle->pdev;
-	struct hnae3_ring_chain_node *cur_chain = head;
 	struct hnae3_ring_chain_node *chain;
-	struct hns3_enet_ring *tx_ring;
-	struct hns3_enet_ring *rx_ring;
-
-	tx_ring = tqp_vector->tx_group.ring;
-	if (tx_ring) {
-		cur_chain->tqp_index = tx_ring->tqp->tqp_index;
-		hnae3_set_bit(cur_chain->flag, HNAE3_RING_TYPE_B,
-			      HNAE3_RING_TYPE_TX);
-		hnae3_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;
-
-		while (tx_ring->next) {
-			tx_ring = tx_ring->next;
-
-			chain = devm_kzalloc(&pdev->dev, sizeof(*chain),
-					     GFP_KERNEL);
-			if (!chain)
-				goto err_free_chain;
-
-			cur_chain->next = chain;
-			chain->tqp_index = tx_ring->tqp->tqp_index;
-			hnae3_set_bit(chain->flag, HNAE3_RING_TYPE_B,
-				      HNAE3_RING_TYPE_TX);
-			hnae3_set_field(chain->int_gl_idx,
-					HNAE3_RING_GL_IDX_M,
-					HNAE3_RING_GL_IDX_S,
-					HNAE3_RING_GL_TX);
-
-			cur_chain = chain;
-		}
-	}
+	struct hns3_enet_ring *ring;
 
-	rx_ring = tqp_vector->rx_group.ring;
-	if (!tx_ring && rx_ring) {
-		cur_chain->next = NULL;
-		cur_chain->tqp_index = rx_ring->tqp->tqp_index;
-		hnae3_set_bit(cur_chain->flag, HNAE3_RING_TYPE_B,
-			      HNAE3_RING_TYPE_RX);
-		hnae3_set_field(cur_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
-				HNAE3_RING_GL_IDX_S, HNAE3_RING_GL_RX);
+	ring = is_tx ? tqp_vector->tx_group.ring : tqp_vector->rx_group.ring;
 
-		rx_ring = rx_ring->next;
+	if (cur_chain) {
+		while (cur_chain->next)
+			cur_chain = cur_chain->next;
 	}
 
-	while (rx_ring) {
+	while (ring) {
 		chain = devm_kzalloc(&pdev->dev, sizeof(*chain), GFP_KERNEL);
 		if (!chain)
-			goto err_free_chain;
-
-		cur_chain->next = chain;
-		chain->tqp_index = rx_ring->tqp->tqp_index;
+			return -ENOMEM;
+		if (cur_chain)
+			cur_chain->next = chain;
+		else
+			*head = chain;
+		chain->tqp_index = ring->tqp->tqp_index;
 		hnae3_set_bit(chain->flag, HNAE3_RING_TYPE_B,
-			      HNAE3_RING_TYPE_RX);
-		hnae3_set_field(chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
-				HNAE3_RING_GL_IDX_S, HNAE3_RING_GL_RX);
+				bit_value);
+		hnae3_set_field(chain->int_gl_idx,
+				HNAE3_RING_GL_IDX_M,
+				HNAE3_RING_GL_IDX_S, field_value);
 
 		cur_chain = chain;
 
-		rx_ring = rx_ring->next;
+		ring = ring->next;
 	}
 
 	return 0;
+}
+
+static struct hnae3_ring_chain_node *
+hns3_get_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector)
+{
+	struct pci_dev *pdev = tqp_vector->handle->pdev;
+	struct hnae3_ring_chain_node *cur_chain = NULL;
+	struct hnae3_ring_chain_node *chain;
+
+	if (hns3_create_ring_chain(tqp_vector, &cur_chain, true))
+		goto err_free_chain;
+
+	if (hns3_create_ring_chain(tqp_vector, &cur_chain, false))
+		goto err_free_chain;
+
+	return cur_chain;
 
 err_free_chain:
-	cur_chain = head->next;
 	while (cur_chain) {
 		chain = cur_chain->next;
 		devm_kfree(&pdev->dev, cur_chain);
 		cur_chain = chain;
 	}
-	head->next = NULL;
 
-	return -ENOMEM;
+	return NULL;
 }
 
 static void hns3_free_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
@@ -4431,7 +4414,7 @@ static void hns3_free_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector,
 	struct pci_dev *pdev = tqp_vector->handle->pdev;
 	struct hnae3_ring_chain_node *chain_tmp, *chain;
 
-	chain = head->next;
+	chain = head;
 
 	while (chain) {
 		chain_tmp = chain->next;
@@ -4546,7 +4529,7 @@ static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv)
 	}
 
 	for (i = 0; i < priv->vector_num; i++) {
-		struct hnae3_ring_chain_node vector_ring_chain;
+		struct hnae3_ring_chain_node *vector_ring_chain;
 
 		tqp_vector = &priv->tqp_vector[i];
 
@@ -4556,15 +4539,16 @@ static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv)
 		tqp_vector->tx_group.total_packets = 0;
 		tqp_vector->handle = h;
 
-		ret = hns3_get_vector_ring_chain(tqp_vector,
-						 &vector_ring_chain);
-		if (ret)
+		vector_ring_chain = hns3_get_vector_ring_chain(tqp_vector);
+		if (!vector_ring_chain) {
+			ret = -ENOMEM;
 			goto map_ring_fail;
+		}
 
 		ret = h->ae_algo->ops->map_ring_to_vector(h,
-			tqp_vector->vector_irq, &vector_ring_chain);
+			tqp_vector->vector_irq, vector_ring_chain);
 
-		hns3_free_vector_ring_chain(tqp_vector, &vector_ring_chain);
+		hns3_free_vector_ring_chain(tqp_vector, vector_ring_chain);
 
 		if (ret)
 			goto map_ring_fail;
@@ -4663,7 +4647,7 @@ static void hns3_clear_ring_group(struct hns3_enet_ring_group *group)
 
 static void hns3_nic_uninit_vector_data(struct hns3_nic_priv *priv)
 {
-	struct hnae3_ring_chain_node vector_ring_chain;
+	struct hnae3_ring_chain_node *vector_ring_chain;
 	struct hnae3_handle *h = priv->ae_handle;
 	struct hns3_enet_tqp_vector *tqp_vector;
 	int i;
@@ -4678,13 +4662,14 @@ static void hns3_nic_uninit_vector_data(struct hns3_nic_priv *priv)
 		 * chain between vector and ring, we should go on to deal with
 		 * the remaining options.
 		 */
-		if (hns3_get_vector_ring_chain(tqp_vector, &vector_ring_chain))
+		vector_ring_chain = hns3_get_vector_ring_chain(tqp_vector);
+		if (!vector_ring_chain)
 			dev_warn(priv->dev, "failed to get ring chain\n");
 
 		h->ae_algo->ops->unmap_ring_from_vector(h,
-			tqp_vector->vector_irq, &vector_ring_chain);
+			tqp_vector->vector_irq, vector_ring_chain);
 
-		hns3_free_vector_ring_chain(tqp_vector, &vector_ring_chain);
+		hns3_free_vector_ring_chain(tqp_vector, vector_ring_chain);
 
 		hns3_clear_ring_group(&tqp_vector->rx_group);
 		hns3_clear_ring_group(&tqp_vector->tx_group);
-- 
2.33.0

Re: [PATCH net-next 0/9] net: hns3: some cleanups for -next

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net-next.git (master)
by David S. Miller <davem@davemloft.net>:

On Thu, 2 Dec 2021 16:35:54 +0800 you wrote:
> To improve code readability and simplicity, this series add 9 cleanup
> patches for the HNS3 ethernet driver.
> 
> Jian Shen (3):
>   net: hns3: split function hclge_init_vlan_config()
>   net: hns3: split function hclge_get_fd_rule_info()
>   net: hns3: split function hclge_update_port_base_vlan_cfg()
> 
> [...]

Here is the summary with links:
  - [net-next,1/9] net: hns3: extract macro to simplify ring stats update code
    https://git.kernel.org/netdev/net-next/c/e6d72f6ac2ad
  - [net-next,2/9] net: hns3: refactor function hns3_fill_skb_desc to simplify code
    https://git.kernel.org/netdev/net-next/c/a1cfb24d011a
  - [net-next,3/9] net: hns3: split function hclge_init_vlan_config()
    https://git.kernel.org/netdev/net-next/c/b60f9d2ec479
  - [net-next,4/9] net: hns3: split function hclge_get_fd_rule_info()
    https://git.kernel.org/netdev/net-next/c/a41fb3961d8d
  - [net-next,5/9] net: hns3: split function hns3_nic_net_xmit()
    https://git.kernel.org/netdev/net-next/c/8d4b409bac57
  - [net-next,6/9] net: hns3: split function hclge_update_port_base_vlan_cfg()
    https://git.kernel.org/netdev/net-next/c/d25f5eddbe1a
  - [net-next,7/9] net: hns3: refactor function hclge_configure()
    https://git.kernel.org/netdev/net-next/c/673b35b6a5bf
  - [net-next,8/9] net: hns3: refactor function hclge_set_channels()
    https://git.kernel.org/netdev/net-next/c/358e3edb31d5
  - [net-next,9/9] net: hns3: refactor function hns3_get_vector_ring_chain()
    https://git.kernel.org/netdev/net-next/c/1b33341e3dc0

You are awesome, thank you!
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