6.14-stable review patch. If anyone has any objections, please let me know.
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From: Moshe Shemesh moshe@nvidia.com
[ Upstream commit 1726ad035cb0c93cc5c3f2227ec71322ccd7c2f8 ]
The health poll mechanism performs periodic checks to detect firmware errors. One of the checks verifies the function is still enabled on firmware side, but the function is enabled only after enable_hca command completed. Start health poll after enable_hca command to avoid a race between function enabled and first health polling.
Fixes: 9b98d395b85d ("net/mlx5: Start health poll at earlier stage of driver load") Signed-off-by: Moshe Shemesh moshe@nvidia.com Reviewed-by: Shay Drori shayd@nvidia.com Signed-off-by: Tariq Toukan tariqt@nvidia.com Reviewed-by: Michal Swiatkowski michal.swiatkowski@linux.intel.com Reviewed-by: Kalesh AP kalesh-anakkur.purayil@broadcom.com Link: https://patch.msgid.link/1742331077-102038-3-git-send-email-tariqt@nvidia.co... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index ec956c4bcebdb..7c3312d6aed9b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1205,24 +1205,24 @@ static int mlx5_function_enable(struct mlx5_core_dev *dev, bool boot, u64 timeou dev->caps.embedded_cpu = mlx5_read_embedded_cpu(dev); mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_UP);
- mlx5_start_health_poll(dev); - err = mlx5_core_enable_hca(dev, 0); if (err) { mlx5_core_err(dev, "enable hca failed\n"); - goto stop_health_poll; + goto err_cmd_cleanup; }
+ mlx5_start_health_poll(dev); + err = mlx5_core_set_issi(dev); if (err) { mlx5_core_err(dev, "failed to set issi\n"); - goto err_disable_hca; + goto stop_health_poll; }
err = mlx5_satisfy_startup_pages(dev, 1); if (err) { mlx5_core_err(dev, "failed to allocate boot pages\n"); - goto err_disable_hca; + goto stop_health_poll; }
err = mlx5_tout_query_dtor(dev); @@ -1235,10 +1235,9 @@ static int mlx5_function_enable(struct mlx5_core_dev *dev, bool boot, u64 timeou
reclaim_boot_pages: mlx5_reclaim_startup_pages(dev); -err_disable_hca: - mlx5_core_disable_hca(dev, 0); stop_health_poll: mlx5_stop_health_poll(dev, boot); + mlx5_core_disable_hca(dev, 0); err_cmd_cleanup: mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN); mlx5_cmd_disable(dev); @@ -1249,8 +1248,8 @@ static int mlx5_function_enable(struct mlx5_core_dev *dev, bool boot, u64 timeou static void mlx5_function_disable(struct mlx5_core_dev *dev, bool boot) { mlx5_reclaim_startup_pages(dev); - mlx5_core_disable_hca(dev, 0); mlx5_stop_health_poll(dev, boot); + mlx5_core_disable_hca(dev, 0); mlx5_cmd_set_state(dev, MLX5_CMDIF_STATE_DOWN); mlx5_cmd_disable(dev); }