net/kni: do not count unsent packets as errors

err_pkts reflects the number of packets that the driver did not manage to
send.
This is a temporary situation, those packets are not freed and the
application can still retry to send them later.
Hence, we can't count them as transmit failed.

Fixes: 75e2bc54c018 ("net/kni: add KNI PMD")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/drivers/net/kni/rte_eth_kni.c b/drivers/net/kni/rte_eth_kni.c
index 884280c..515c0aa 100644 (file)
--- a/drivers/net/kni/rte_eth_kni.c
+++ b/drivers/net/kni/rte_eth_kni.c
@@ -35,7 +35,6 @@ struct eth_kni_args {
 struct pmd_queue_stats {
        uint64_t pkts;
        uint64_t bytes;
-       uint64_t err_pkts;
 };
 
 struct pmd_queue {
@@ -97,7 +96,6 @@ eth_kni_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
        nb_pkts =  rte_kni_tx_burst(kni, bufs, nb_bufs);
 
        kni_q->tx.pkts += nb_pkts;
-       kni_q->tx.err_pkts += nb_bufs - nb_pkts;
 
        return nb_pkts;
 }
@@ -269,7 +267,6 @@ eth_kni_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
        unsigned long rx_packets_total = 0, rx_bytes_total = 0;
        unsigned long tx_packets_total = 0, tx_bytes_total = 0;
        struct rte_eth_dev_data *data = dev->data;
-       unsigned long tx_packets_err_total = 0;
        unsigned int i, num_stats;
        struct pmd_queue *q;
 
@@ -291,14 +288,12 @@ eth_kni_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
                stats->q_obytes[i] = q->tx.bytes;
                tx_packets_total += stats->q_opackets[i];
                tx_bytes_total += stats->q_obytes[i];
-               tx_packets_err_total += q->tx.err_pkts;
        }
 
        stats->ipackets = rx_packets_total;
        stats->ibytes = rx_bytes_total;
        stats->opackets = tx_packets_total;
        stats->obytes = tx_bytes_total;
-       stats->oerrors = tx_packets_err_total;
 
        return 0;
 }
@@ -319,7 +314,6 @@ eth_kni_stats_reset(struct rte_eth_dev *dev)
                q = data->tx_queues[i];
                q->tx.pkts = 0;
                q->tx.bytes = 0;
-               q->tx.err_pkts = 0;
        }
 }