| From 24066a9529752bbe4b111d7bbfa9d3a82d4b4661 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Wed, 25 Jan 2023 17:39:36 +0200 |
| Subject: net/mlx5: fw_tracer, Zero consumer index when reloading the tracer |
| |
| From: Shay Drory <shayd@nvidia.com> |
| |
| [ Upstream commit 184e1e4474dbcfebc4dbd1fa823a329978f25506 ] |
| |
| When tracer is reloaded, the device will log the traces at the |
| beginning of the log buffer. Also, driver is reading the log buffer in |
| chunks in accordance to the consumer index. |
| Hence, zero consumer index when reloading the tracer. |
| |
| Fixes: 4383cfcc65e7 ("net/mlx5: Add devlink reload") |
| Signed-off-by: Shay Drory <shayd@nvidia.com> |
| Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c |
| index d82e98a0cdfa7..5b05b884b5fb3 100644 |
| --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c |
| +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c |
| @@ -757,6 +757,7 @@ static int mlx5_fw_tracer_set_mtrc_conf(struct mlx5_fw_tracer *tracer) |
| if (err) |
| mlx5_core_warn(dev, "FWTracer: Failed to set tracer configurations %d\n", err); |
| |
| + tracer->buff.consumer_index = 0; |
| return err; |
| } |
| |
| @@ -821,7 +822,6 @@ static void mlx5_fw_tracer_ownership_change(struct work_struct *work) |
| mlx5_core_dbg(tracer->dev, "FWTracer: ownership changed, current=(%d)\n", tracer->owner); |
| if (tracer->owner) { |
| tracer->owner = false; |
| - tracer->buff.consumer_index = 0; |
| return; |
| } |
| |
| -- |
| 2.39.0 |
| |
