net/mlx5: fw_tracer, Zero consumer index when reloading the tracer

[ 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>

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 d82e98a0cdfa70220d02f007e4e6a8d192978624..5b05b884b5fb3c6dc63d3c0e942f433f85d47888 100644 (file)
--- 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;
        }