diff options
| author | Yunsheng Lin <linyunsheng@huawei.com> | 2019-05-06 10:48:43 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-07 10:37:13 -0700 |
| commit | d21ff4f90d975f5027678eb84e0d53fb8ca19c9b (patch) | |
| tree | 7a5d5aeae9e51e71e09434b8732b35cc3630e65f /drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | |
| parent | fb00331bb8db4a631b00d6582f94806eba7a4c7f (diff) | |
net: hns3: add counter for times RX pages gets allocated
Currently, using "ethtool --statistics" can show how many time RX
page have been reused, but there is no counter for RX page not
being reused.
This patch adds non_reuse_pg counter to better debug the performance
issue, because it is hard to determine when the RX page is reused
or not if there is no such counter.
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>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3_enet.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index ff3c9f11ca65..453fdf43136a 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2315,6 +2315,10 @@ hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring, int cleand_count) break; } 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); } ring_ptr_move_fw(ring, next_to_use); |