[dpdk-dev] [PATCH 3/3] pcap: add byte and error counters into statistics

[Tero Aho]

Added input/ouput byte counters into pcap interface statistics,
also calls pcap_stats to add dropped packets into input errors.

Signed-off-by: Tero Aho <tero.aho at coriant.com>
---
 lib/librte_pmd_pcap/rte_eth_pcap.c | 37 +++++++++++++++++++++++++++++--------
 1 file changed, 29 insertions(+), 8 deletions(-)

diff --git a/lib/librte_pmd_pcap/rte_eth_pcap.c b/lib/librte_pmd_pcap/rte_eth_pcap.c
index 3f23f0a..1c472ac 100644
--- a/lib/librte_pmd_pcap/rte_eth_pcap.c
+++ b/lib/librte_pmd_pcap/rte_eth_pcap.c
@@ -71,6 +71,7 @@ struct pcap_rx_queue {
        uint8_t in_port;
        struct rte_mempool *mb_pool;
        volatile unsigned long rx_pkts;
+       volatile unsigned long rx_octs;
        volatile unsigned long err_pkts;
        const char *name;
        const char *type;
@@ -80,6 +81,7 @@ struct pcap_tx_queue {
        pcap_dumper_t *dumper;
        pcap_t *pcap;
        volatile unsigned long tx_pkts;
+       volatile unsigned long tx_octs;
        volatile unsigned long err_pkts;
        const char *name;
        const char *type;
@@ -218,6 +220,7 @@ eth_pcap_rx(void *queue,
                                break;
                        }
                }
+               pcap_q->rx_octs += header.len;
                mbuf->pkt_len = (uint16_t)header.len;
                mbuf->port = pcap_q->in_port;
                bufs[num_rx] = mbuf;
@@ -261,6 +264,7 @@ eth_pcap_tx_dumper(void *queue,
                calculate_timestamp(&header.ts);
                header.len = mbuf->data_len;
                header.caplen = header.len;
+               dumper_q->tx_octs += header.len;
                pcap_dump((u_char *)dumper_q->dumper, &header,
                                rte_pktmbuf_mtod(mbuf, void*));
                rte_pktmbuf_free(mbuf);
@@ -324,9 +328,11 @@ eth_pcap_tx(void *queue,
                                              mbuf->data_len);
                else
                        ret = eth_pcap_tx_jumbo(tx_queue->pcap, mbuf);
+
                if (unlikely(ret != 0))
                        break;
                num_tx++;
+               tx_queue->tx_octs += mbuf->pkt_len;
                rte_pktmbuf_free(mbuf);
        }

@@ -471,26 +477,38 @@ eth_stats_get(struct rte_eth_dev *dev,
                struct rte_eth_stats *igb_stats)
 {
        unsigned i;
-       unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
+       struct pcap_stat ps;
+       unsigned long ipackets = 0, ibytes = 0, ierrors = 0;
+       unsigned long opackets = 0, obytes = 0, oerrors = 0;
        const struct pmd_internals *internal = dev->data->dev_private;

        for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < internal->nb_rx_queues;
                        i++) {
                igb_stats->q_ipackets[i] = internal->rx_queue[i].rx_pkts;
-               rx_total += igb_stats->q_ipackets[i];
+               igb_stats->q_ibytes[i] = internal->rx_queue[i].rx_octs;
+               if (!pcap_stats(internal->rx_queue[i].pcap, &ps))
+                       igb_stats->q_errors[i] = ps.ps_drop;
+               ipackets += igb_stats->q_ipackets[i];
+               ibytes += igb_stats->q_ibytes[i];
+               ierrors += igb_stats->q_errors[i];
        }

        for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < internal->nb_tx_queues;
                        i++) {
                igb_stats->q_opackets[i] = internal->tx_queue[i].tx_pkts;
+               igb_stats->q_obytes[i] = internal->tx_queue[i].tx_octs;
                igb_stats->q_errors[i] = internal->tx_queue[i].err_pkts;
-               tx_total += igb_stats->q_opackets[i];
-               tx_err_total += igb_stats->q_errors[i];
+               opackets += igb_stats->q_opackets[i];
+               obytes += igb_stats->q_obytes[i];
+               oerrors += igb_stats->q_errors[i];
        }

-       igb_stats->ipackets = rx_total;
-       igb_stats->opackets = tx_total;
-       igb_stats->oerrors = tx_err_total;
+       igb_stats->ipackets = ipackets;
+       igb_stats->ibytes = ibytes;
+       igb_stats->ierrors = ierrors;
+       igb_stats->opackets = opackets;
+       igb_stats->obytes = obytes;
+       igb_stats->oerrors = oerrors;
 }

 static void
@@ -498,10 +516,13 @@ eth_stats_reset(struct rte_eth_dev *dev)
 {
        unsigned i;
        struct pmd_internals *internal = dev->data->dev_private;
-       for (i = 0; i < internal->nb_rx_queues; i++)
+       for (i = 0; i < internal->nb_rx_queues; i++) {
                internal->rx_queue[i].rx_pkts = 0;
+               internal->rx_queue[i].rx_octs = 0;
+       }
        for (i = 0; i < internal->nb_tx_queues; i++) {
                internal->tx_queue[i].tx_pkts = 0;
+               internal->tx_queue[i].tx_octs = 0;
                internal->tx_queue[i].err_pkts = 0;
        }
 }
--
1.9.1


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