[PATCH 5.13 054/127] bnxt: count Tx drops

Sasha Levin
2021-08-24T16:59:43Z

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit fb9f7190092d2bbd1f8f0b1cc252732cbe99a87e ]

Drivers should count packets they are dropping.

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index ea67c8c07a8b..a30ded73bba1 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -409,6 +409,7 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
i = skb_get_queue_mapping(skb);
if (unlikely(i >= bp->tx_nr_rings)) {
dev_kfree_skb_any(skb);
+ atomic_long_inc(&dev->tx_dropped);
return NETDEV_TX_OK;
}

@@ -663,6 +664,7 @@ tx_kick_pending:
if (txr->kick_pending)
bnxt_txr_db_kick(bp, txr, txr->tx_prod);
txr->tx_buf_ring[txr->tx_prod].skb = NULL;
+ atomic_long_inc(&dev->tx_dropped);
return NETDEV_TX_OK;
}

--
2.30.2