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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: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eran Ben Elisha 2020-02-21 21:46:12 +00:00 committed by David S. Miller
parent 958dfd0dc6
commit b7331aa204
1 changed files with 39 additions and 0 deletions
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39
drivers/net/ethernet/mellanox/mlx5/core/fw.c
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@ -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