Commit d21ff4f9 authored by Yunsheng Lin's avatar Yunsheng Lin Committed by David S. Miller

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: default avatarYunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fb00331b
...@@ -2315,6 +2315,10 @@ hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring, int cleand_count) ...@@ -2315,6 +2315,10 @@ hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring, int cleand_count)
break; break;
} }
hns3_replace_buffer(ring, ring->next_to_use, &res_cbs); 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); ring_ptr_move_fw(ring, next_to_use);
......
...@@ -389,6 +389,7 @@ struct ring_stats { ...@@ -389,6 +389,7 @@ struct ring_stats {
u64 l2_err; u64 l2_err;
u64 l3l4_csum_err; u64 l3l4_csum_err;
u64 rx_multicast; u64 rx_multicast;
u64 non_reuse_pg;
}; };
}; };
}; };
......
...@@ -49,6 +49,7 @@ static const struct hns3_stats hns3_rxq_stats[] = { ...@@ -49,6 +49,7 @@ static const struct hns3_stats hns3_rxq_stats[] = {
HNS3_TQP_STAT("l2_err", l2_err), HNS3_TQP_STAT("l2_err", l2_err),
HNS3_TQP_STAT("l3l4_csum_err", l3l4_csum_err), HNS3_TQP_STAT("l3l4_csum_err", l3l4_csum_err),
HNS3_TQP_STAT("multicast", rx_multicast), 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) #define HNS3_RXQ_STATS_COUNT ARRAY_SIZE(hns3_rxq_stats)
......
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