This is a note to let you know that I've just added the patch titled
net/mlx5: fw_tracer, Zero consumer index when reloading the tracer
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-mlx5-fw_tracer-zero-consumer-index-when-reloadin.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 24066a9529752bbe4b111d7bbfa9d3a82d4b4661
Author: Shay Drory <shayd@xxxxxxxxxx>
Date: Wed Jan 25 17:39:36 2023 +0200
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@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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;
}
