Commit b7331aa2 authored by Eran Ben Elisha's avatar Eran Ben Elisha Committed by David S. Miller
Browse files

net/mlx5: Add fsm_reactivate callback support 



Add support for fsm reactivate via MIRC (Management Image Re-activation
Control) set and query commands.
For re-activation flow, driver shall first run MIRC set, and then wait
until FW is done (via querying MIRC status).

Signed-off-by: default avatarEran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 958dfd0d

drivers/net/ethernet/mellanox/mlx5/core/fw.c

+39 −0
Original line number Diff line number Diff line
@@ -613,6 +613,44 @@ static void mlx5_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) 
			 fwhandle, 0);

}



#define MLX5_FSM_REACTIVATE_TOUT 5000 /* msecs */

static int mlx5_fsm_reactivate(struct mlxfw_dev *mlxfw_dev, u8 *status)

{

	unsigned long exp_time = jiffies + msecs_to_jiffies(MLX5_FSM_REACTIVATE_TOUT);

	struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =

		container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);

	struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;

	u32 out[MLX5_ST_SZ_DW(mirc_reg)];

	u32 in[MLX5_ST_SZ_DW(mirc_reg)];

	int err;



	if (!MLX5_CAP_MCAM_REG2(dev, mirc))

		return -EOPNOTSUPP;



	memset(in, 0, sizeof(in));



	err = mlx5_core_access_reg(dev, in, sizeof(in), out,

				   sizeof(out), MLX5_REG_MIRC, 0, 1);

	if (err)

		return err;



	do {

		memset(out, 0, sizeof(out));

		err = mlx5_core_access_reg(dev, in, sizeof(in), out,

					   sizeof(out), MLX5_REG_MIRC, 0, 0);

		if (err)

			return err;



		*status = MLX5_GET(mirc_reg, out, status_code);

		if (*status != MLXFW_FSM_REACTIVATE_STATUS_BUSY)

			return 0;



		msleep(20);

	} while (time_before(jiffies, exp_time));



	return 0;

}



static const struct mlxfw_dev_ops mlx5_mlxfw_dev_ops = {

	.component_query	= mlx5_component_query,

	.fsm_lock		= mlx5_fsm_lock,
@@ -620,6 +658,7 @@ static const struct mlxfw_dev_ops mlx5_mlxfw_dev_ops = { 
	.fsm_block_download	= mlx5_fsm_block_download,

	.fsm_component_verify	= mlx5_fsm_component_verify,

	.fsm_activate		= mlx5_fsm_activate,

	.fsm_reactivate		= mlx5_fsm_reactivate,

	.fsm_query_state	= mlx5_fsm_query_state,

	.fsm_cancel		= mlx5_fsm_cancel,

	.fsm_release		= mlx5_fsm_release

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