net/mlx5e: TX, Fix consumer index of error cqe dump

[ Upstream commit 61ea02d2c13106116c6e4916ac5d9dd41151c959 ]

The completion queue consumer index increments upon a call to
mlx5_cqwq_pop().
When dumping an error CQE, the index is already incremented.
Decrease one for the print command.

Fixes: 16cc14d81733 ("net/mlx5e: Dump xmit error completions")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index 0b03d65..73dce92 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -462,7 +462,10 @@ netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev)
 static void mlx5e_dump_error_cqe(struct mlx5e_txqsq *sq,
                                 struct mlx5_err_cqe *err_cqe)
 {
-       u32 ci = mlx5_cqwq_get_ci(&sq->cq.wq);
+       struct mlx5_cqwq *wq = &sq->cq.wq;
+       u32 ci;
+
+       ci = mlx5_cqwq_ctr2ix(wq, wq->cc - 1);
 
        netdev_err(sq->channel->netdev,
                   "Error cqe on cqn 0x%x, ci 0x%x, sqn 0x%x, syndrome 0x%x, vendor syndrome 0x%x\n",