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

From: Guangbin Huang
Date: Thu Dec 02 2021 - 03:40:58 EST

From: Peng Li <lipeng321@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Guangbin Huang <huangguangbin2@xxxxxxxxxx>
---
.../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