[PATCH 07/13] net/txgbe: add Tx descriptor error statistics

[Jiawen Wu]

Count the number of packets not sent due to Tx descriptor error.

Signed-off-by: Jiawen Wu <jiawe...@trustnetic.com>
---
 drivers/net/txgbe/txgbe_ethdev.c | 6 ++++++
 drivers/net/txgbe/txgbe_rxtx.c   | 3 +++
 drivers/net/txgbe/txgbe_rxtx.h   | 1 +
 3 files changed, 10 insertions(+)

diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c
index bafa9cf829..0c76e986f4 100644
--- a/drivers/net/txgbe/txgbe_ethdev.c
+++ b/drivers/net/txgbe/txgbe_ethdev.c
@@ -2344,6 +2344,7 @@ txgbe_dev_stats_get(struct rte_eth_dev *dev, struct 
rte_eth_stats *stats)
        struct txgbe_hw_stats *hw_stats = TXGBE_DEV_STATS(dev);
        struct txgbe_stat_mappings *stat_mappings =
                        TXGBE_DEV_STAT_MAPPINGS(dev);
+       struct txgbe_tx_queue *txq;
        uint32_t i, j;
 
        txgbe_read_stats_registers(hw, hw_stats);
@@ -2398,6 +2399,11 @@ txgbe_dev_stats_get(struct rte_eth_dev *dev, struct 
rte_eth_stats *stats)
 
        /* Tx Errors */
        stats->oerrors  = 0;
+       for (i = 0; i < dev->data->nb_tx_queues; i++) {
+               txq = dev->data->tx_queues[i];
+               stats->oerrors += txq->desc_error;
+       }
+
        return 0;
 }
 
diff --git a/drivers/net/txgbe/txgbe_rxtx.c b/drivers/net/txgbe/txgbe_rxtx.c
index 06acbd0881..fc9e7b14f5 100644
--- a/drivers/net/txgbe/txgbe_rxtx.c
+++ b/drivers/net/txgbe/txgbe_rxtx.c
@@ -894,6 +894,7 @@ txgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
                tx_pkt = *tx_pkts++;
                if (txgbe_check_pkt_err(tx_pkt)) {
                        rte_pktmbuf_free(tx_pkt);
+                       txq->desc_error++;
                        continue;
                }
 
@@ -2523,6 +2524,7 @@ txgbe_dev_tx_queue_setup(struct rte_eth_dev *dev,
        txgbe_set_tx_function(dev, txq);
 
        txq->ops->reset(txq);
+       txq->desc_error = 0;
 
        dev->data->tx_queues[queue_idx] = txq;
 
@@ -4980,6 +4982,7 @@ txgbe_tx_queue_clear_error(void *param)
                if (!txq->resetting)
                        continue;
 
+               txq->desc_error++;
                txgbe_dev_save_tx_queue(hw, i);
 
                /* tx ring reset */
diff --git a/drivers/net/txgbe/txgbe_rxtx.h b/drivers/net/txgbe/txgbe_rxtx.h
index e668b60b1e..622a0d3981 100644
--- a/drivers/net/txgbe/txgbe_rxtx.h
+++ b/drivers/net/txgbe/txgbe_rxtx.h
@@ -412,6 +412,7 @@ struct txgbe_tx_queue {
        /**< indicates that IPsec TX feature is in use */
 #endif
        const struct rte_memzone *mz;
+       uint64_t            desc_error;
        bool                resetting;
 };
 
-- 
2.27.0