[dpdk-dev] [PATCH 1/1] net/pcap: imissed stats support

[Ido Goshen]

Signed-off-by: Ido Goshen <i...@cgstowernetworks.com>
---
 drivers/net/pcap/rte_eth_pcap.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c
index a32b1f3f3..83e208514 100644
--- a/drivers/net/pcap/rte_eth_pcap.c
+++ b/drivers/net/pcap/rte_eth_pcap.c
@@ -58,6 +58,7 @@ struct queue_stat {
        volatile unsigned long pkts;
        volatile unsigned long bytes;
        volatile unsigned long err_pkts;
+       volatile unsigned long missed_reset;
 };
 
 struct pcap_rx_queue {
@@ -680,11 +681,23 @@ eth_dev_info(struct rte_eth_dev *dev,
        return 0;
 }
 
+static unsigned long
+eth_stats_get_pcap_missed(struct rte_eth_dev *dev, unsigned int qid)
+{
+       const struct pmd_process_private *pp = dev->process_private;
+       pcap_t *pcap = pp->rx_pcap[qid];
+       struct pcap_stat stat;
+       if (pcap_stats(pcap, &stat) != 0)
+               return 0;
+       return stat.ps_drop;
+}
+
 static int
 eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 {
        unsigned int i;
        unsigned long rx_packets_total = 0, rx_bytes_total = 0;
+       unsigned long rx_missed_total = 0;
        unsigned long tx_packets_total = 0, tx_bytes_total = 0;
        unsigned long tx_packets_err_total = 0;
        const struct pmd_internals *internal = dev->data->dev_private;
@@ -695,6 +708,10 @@ eth_stats_get(struct rte_eth_dev *dev, struct 
rte_eth_stats *stats)
                stats->q_ibytes[i] = internal->rx_queue[i].rx_stat.bytes;
                rx_packets_total += stats->q_ipackets[i];
                rx_bytes_total += stats->q_ibytes[i];
+               unsigned long rx_missed = eth_stats_get_pcap_missed(dev, i);
+               if (rx_missed)
+                       rx_missed_total = rx_missed -
+                               internal->rx_queue[i].rx_stat.missed_reset;
        }
 
        for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS &&
@@ -708,6 +725,7 @@ eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats 
*stats)
 
        stats->ipackets = rx_packets_total;
        stats->ibytes = rx_bytes_total;
+       stats->imissed = rx_missed_total;
        stats->opackets = tx_packets_total;
        stats->obytes = tx_bytes_total;
        stats->oerrors = tx_packets_err_total;
@@ -724,6 +742,8 @@ eth_stats_reset(struct rte_eth_dev *dev)
        for (i = 0; i < dev->data->nb_rx_queues; i++) {
                internal->rx_queue[i].rx_stat.pkts = 0;
                internal->rx_queue[i].rx_stat.bytes = 0;
+               internal->rx_queue[i].rx_stat.missed_reset =
+                               eth_stats_get_pcap_missed(dev, i);
        }
 
        for (i = 0; i < dev->data->nb_tx_queues; i++) {
-- 
2.17.1