[PATCH net-next 10/16] net/mlx5: Handle sync reset abort event

From: Moshe Shemesh
Date: Thu Oct 01 2020 - 10:02:47 EST


If firmware sends sync_reset_abort to driver the driver should clear the
reset requested mode as reset is not expected any more.

Signed-off-by: Moshe Shemesh <moshe@xxxxxxxxxxxx>
Reviewed-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
---
.../net/ethernet/mellanox/mlx5/core/fw_reset.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
index 26caf65e9f5f..56ae72e016f1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
@@ -14,6 +14,7 @@ struct mlx5_fw_reset {
struct work_struct reset_request_work;
struct work_struct reset_reload_work;
struct work_struct reset_now_work;
+ struct work_struct reset_abort_work;
unsigned long reset_flags;
struct timer_list timer;
};
@@ -271,6 +272,16 @@ static void mlx5_sync_reset_now_event(struct work_struct *work)
mlx5_load_one(dev, false);
}

+static void mlx5_sync_reset_abort_event(struct work_struct *work)
+{
+ struct mlx5_fw_reset *fw_reset = container_of(work, struct mlx5_fw_reset,
+ reset_abort_work);
+ struct mlx5_core_dev *dev = fw_reset->dev;
+
+ mlx5_sync_reset_clear_reset_requested(dev, true);
+ mlx5_core_warn(dev, "PCI Sync FW Update Reset Aborted.\n");
+}
+
static void mlx5_sync_reset_events_handle(struct mlx5_fw_reset *fw_reset, struct mlx5_eqe *eqe)
{
struct mlx5_eqe_sync_fw_update *sync_fw_update_eqe;
@@ -285,6 +296,9 @@ static void mlx5_sync_reset_events_handle(struct mlx5_fw_reset *fw_reset, struct
case MLX5_SYNC_RST_STATE_RESET_NOW:
queue_work(fw_reset->wq, &fw_reset->reset_now_work);
break;
+ case MLX5_SYNC_RST_STATE_RESET_ABORT:
+ queue_work(fw_reset->wq, &fw_reset->reset_abort_work);
+ break;
}
}

@@ -335,6 +349,7 @@ int mlx5_fw_reset_init(struct mlx5_core_dev *dev)
INIT_WORK(&fw_reset->reset_request_work, mlx5_sync_reset_request_event);
INIT_WORK(&fw_reset->reset_reload_work, mlx5_sync_reset_reload_work);
INIT_WORK(&fw_reset->reset_now_work, mlx5_sync_reset_now_event);
+ INIT_WORK(&fw_reset->reset_abort_work, mlx5_sync_reset_abort_event);

return 0;
}
--
2.18.2