net/mlx5: Expose timeout for sync reset unload stage

Expose new timoueout in Default Timeouts Register to be used on sync
reset flow running on smart NIC. In this flow the driver should know how
much time to wait from getting unload request till firmware will ask the
PF to continue to next stage of the flow.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/lib/tout.c

@@ -24,7 +24,8 @@ static const u32 tout_def_sw_val[MAX_TIMEOUT_TYPES] = {
 	[MLX5_TO_TEARDOWN_MS] = 3000,
 	[MLX5_TO_FSM_REACTIVATE_MS] = 5000,
 	[MLX5_TO_RECLAIM_PAGES_MS] = 5000,
-	[MLX5_TO_RECLAIM_VFS_PAGES_MS] = 120000
+	[MLX5_TO_RECLAIM_VFS_PAGES_MS] = 120000,
+	[MLX5_TO_RESET_UNLOAD_MS] = 300000
 };
 
 static void tout_set(struct mlx5_core_dev *dev, u64 val, enum mlx5_timeouts_types type)
@@ -146,6 +147,7 @@ static int tout_query_dtor(struct mlx5_core_dev *dev)
 	MLX5_TIMEOUT_FILL(fsm_reactivate_to, out, dev, MLX5_TO_FSM_REACTIVATE_MS, 0);
 	MLX5_TIMEOUT_FILL(reclaim_pages_to, out, dev, MLX5_TO_RECLAIM_PAGES_MS, 0);
 	MLX5_TIMEOUT_FILL(reclaim_vfs_pages_to, out, dev, MLX5_TO_RECLAIM_VFS_PAGES_MS, 0);
+	MLX5_TIMEOUT_FILL(reset_unload_to, out, dev, MLX5_TO_RESET_UNLOAD_MS, 0);
 
 	return 0;
 }

drivers/net/ethernet/mellanox/mlx5/core/lib/tout.h

@@ -26,6 +26,7 @@ enum mlx5_timeouts_types {
 	MLX5_TO_FSM_REACTIVATE_MS,
 	MLX5_TO_RECLAIM_PAGES_MS,
 	MLX5_TO_RECLAIM_VFS_PAGES_MS,
+	MLX5_TO_RESET_UNLOAD_MS,
 
 	MAX_TIMEOUT_TYPES
 };

include/linux/mlx5/mlx5_ifc.h

@@ -3117,7 +3117,9 @@ struct mlx5_ifc_dtor_reg_bits {
 
 	struct mlx5_ifc_default_timeout_bits reclaim_vfs_pages_to;
 
-	u8         reserved_at_1c0[0x40];
+	struct mlx5_ifc_default_timeout_bits reset_unload_to;
+
+	u8         reserved_at_1c0[0x20];
 };
 
 enum {