[dpdk-dev] [PATCH v3] add drop statistic for af_packet

[Vadim Podovinnikov]

From: Vadim <podovinni...@protei.ru>

add drop statistic for af_packet

Signed-off-by: Vadim Podovinnikov <podovinni...@protei.ru>
---
 drivers/net/af_packet/rte_eth_af_packet.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c 
b/drivers/net/af_packet/rte_eth_af_packet.c
index f5806bf42..eee0fbce2 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -327,8 +327,10 @@ eth_stats_get(struct rte_eth_dev *dev, struct 
rte_eth_stats *igb_stats)
 {
        unsigned i, imax;
        unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
-       unsigned long rx_bytes_total = 0, tx_bytes_total = 0;
+       unsigned long rx_bytes_total = 0, tx_bytes_total = 0, rx_drop = 0;
        const struct pmd_internals *internal = dev->data->dev_private;
+       socklen_t sock_len = sizeof(struct tpacket_stats);
+       struct tpacket_stats st;
 
        imax = (internal->nb_queues < RTE_ETHDEV_QUEUE_STAT_CNTRS ?
                internal->nb_queues : RTE_ETHDEV_QUEUE_STAT_CNTRS);
@@ -337,6 +339,12 @@ eth_stats_get(struct rte_eth_dev *dev, struct 
rte_eth_stats *igb_stats)
                igb_stats->q_ibytes[i] = internal->rx_queue[i].rx_bytes;
                rx_total += igb_stats->q_ipackets[i];
                rx_bytes_total += igb_stats->q_ibytes[i];
+
+               memset(&st, 0, sock_len);
+               int rc = getsockopt(internal->rx_queue[i].sockfd, SOL_PACKET,
+                                       PACKET_STATISTICS, &st, &sock_len);
+               if (rc == 0)
+                       rx_drop += st.tp_drops;
        }
 
        imax = (internal->nb_queues < RTE_ETHDEV_QUEUE_STAT_CNTRS ?
@@ -349,6 +357,7 @@ eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats 
*igb_stats)
                tx_bytes_total += igb_stats->q_obytes[i];
        }
 
+       igb_stats->imissed = rx_drop;
        igb_stats->ipackets = rx_total;
        igb_stats->ibytes = rx_bytes_total;
        igb_stats->opackets = tx_total;
-- 
2.24.0