From: Julio Faracco <[email protected]> For debug purpose of TX timeout events, a tx_timeout entry was added to monitor this special case: when dev_watchdog identifies a tx_timeout and throw an exception. We can both consider this event as an error, but driver should report as a tx_timeout statistic.
Signed-off-by: Julio Faracco <[email protected]> Signed-off-by: Daiane Mendes <[email protected]> Cc: Jason Wang <[email protected]> --- drivers/net/virtio_net.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 4f3de0ac8b0b..27f9b212c9f5 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -75,6 +75,7 @@ struct virtnet_sq_stats { u64 xdp_tx; u64 xdp_tx_drops; u64 kicks; + u64 tx_timeouts; }; struct virtnet_rq_stats { @@ -98,6 +99,7 @@ static const struct virtnet_stat_desc virtnet_sq_stats_desc[] = { { "xdp_tx", VIRTNET_SQ_STAT(xdp_tx) }, { "xdp_tx_drops", VIRTNET_SQ_STAT(xdp_tx_drops) }, { "kicks", VIRTNET_SQ_STAT(kicks) }, + { "tx_timeouts", VIRTNET_SQ_STAT(tx_timeouts) }, }; static const struct virtnet_stat_desc virtnet_rq_stats_desc[] = { @@ -1721,7 +1723,7 @@ static void virtnet_stats(struct net_device *dev, int i; for (i = 0; i < vi->max_queue_pairs; i++) { - u64 tpackets, tbytes, rpackets, rbytes, rdrops; + u64 tpackets, tbytes, terrors, rpackets, rbytes, rdrops; struct receive_queue *rq = &vi->rq[i]; struct send_queue *sq = &vi->sq[i]; @@ -1729,6 +1731,7 @@ static void virtnet_stats(struct net_device *dev, start = u64_stats_fetch_begin_irq(&sq->stats.syncp); tpackets = sq->stats.packets; tbytes = sq->stats.bytes; + terrors = sq->stats.tx_timeouts; } while (u64_stats_fetch_retry_irq(&sq->stats.syncp, start)); do { @@ -1743,6 +1746,7 @@ static void virtnet_stats(struct net_device *dev, tot->rx_bytes += rbytes; tot->tx_bytes += tbytes; tot->rx_dropped += rdrops; + tot->tx_errors += terrors; } tot->tx_dropped = dev->stats.tx_dropped; -- 2.21.0
