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mlx4: Add mlx4 initial parameters table and register it

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Create initial parameters table for mlx4.
The table consists of two generic parameters and two driver-specific
parameters.
Generic:
  internal_err_reset - Enable reset device on internal errors. This
  parameter can be configured on mlx4 either on runtime or during driver
  initialization.
  max_macs - Max number of MACs per ETH port. For mlx4 this parameter
  value range is between 1 and 128. This parameter can be configured on
  mlx4 only during driver initialization.
Driver specific:
  enable_64b_cqe_eqe - Enable 64 byte CQEs/EQEs when the FW supports it.
  This parameter can be configured on mlx4 only during driver
  initialization.
  enable_4k_uar - Enable using 4K UAR. This parameter can be configured on
  mlx4 only during driver initialization.

Register the parameters table on mlx4_init_one() and unregister on
mlx4_remove_one().

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Moshe Shemesh 2018-07-04 14:30:34 +03:00 committed by David S. Miller
parent 036467c399
commit bd1b51dc66
1 changed files with 106 additions and 2 deletions
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108
drivers/net/ethernet/mellanox/mlx4/main.c
View File

@ -177,6 +177,101 @@ struct mlx4_port_config {
static atomic_t pf_loading = ATOMIC_INIT(0);
static int mlx4_devlink_ierr_reset_get(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
ctx->val.vbool = !!mlx4_internal_err_reset;
return 0;
}
static int mlx4_devlink_ierr_reset_set(struct devlink *devlink, u32 id,
struct devlink_param_gset_ctx *ctx)
{
mlx4_internal_err_reset = ctx->val.vbool;
return 0;
}
static int
mlx4_devlink_max_macs_validate(struct devlink *devlink, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
u32 value = val.vu32;
if (value < 1 || value > 128)
return -ERANGE;
if (!is_power_of_2(value)) {
NL_SET_ERR_MSG_MOD(extack, "max_macs supported must be power of 2");
return -EINVAL;
}
return 0;
}
enum mlx4_devlink_param_id {
MLX4_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
};
static const struct devlink_param mlx4_devlink_params[] = {
DEVLINK_PARAM_GENERIC(INT_ERR_RESET,
BIT(DEVLINK_PARAM_CMODE_RUNTIME) |
BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
mlx4_devlink_ierr_reset_get,
mlx4_devlink_ierr_reset_set, NULL),
DEVLINK_PARAM_GENERIC(MAX_MACS,
BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
NULL, NULL, mlx4_devlink_max_macs_validate),
DEVLINK_PARAM_DRIVER(MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
"enable_64b_cqe_eqe", DEVLINK_PARAM_TYPE_BOOL,
BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
NULL, NULL, NULL),
DEVLINK_PARAM_DRIVER(MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
"enable_4k_uar", DEVLINK_PARAM_TYPE_BOOL,
BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
NULL, NULL, NULL),
};
static void mlx4_devlink_set_init_value(struct devlink *devlink, u32 param_id,
union devlink_param_value init_val)
{
struct mlx4_priv *priv = devlink_priv(devlink);
struct mlx4_dev *dev = &priv->dev;
int err;
err = devlink_param_driverinit_value_set(devlink, param_id, init_val);
if (err)
mlx4_warn(dev,
"devlink set parameter %u value failed (err = %d)",
param_id, err);
}
static void mlx4_devlink_set_params_init_values(struct devlink *devlink)
{
union devlink_param_value value;
value.vbool = !!mlx4_internal_err_reset;
mlx4_devlink_set_init_value(devlink,
DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
value);
value.vu32 = 1UL << log_num_mac;
mlx4_devlink_set_init_value(devlink,
DEVLINK_PARAM_GENERIC_ID_MAX_MACS, value);
value.vbool = enable_64b_cqe_eqe;
mlx4_devlink_set_init_value(devlink,
MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
value);
value.vbool = enable_4k_uar;
mlx4_devlink_set_init_value(devlink,
MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
value);
}
static inline void mlx4_set_num_reserved_uars(struct mlx4_dev *dev,
struct mlx4_dev_cap *dev_cap)
{
@ -3792,14 +3887,21 @@ static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
ret = devlink_register(devlink, &pdev->dev);
if (ret)
goto err_persist_free;
ret = __mlx4_init_one(pdev, id->driver_data, priv);
ret = devlink_params_register(devlink, mlx4_devlink_params,
ARRAY_SIZE(mlx4_devlink_params));
if (ret)
goto err_devlink_unregister;
mlx4_devlink_set_params_init_values(devlink);
ret = __mlx4_init_one(pdev, id->driver_data, priv);
if (ret)
goto err_params_unregister;
pci_save_state(pdev);
return 0;
err_params_unregister:
devlink_params_unregister(devlink, mlx4_devlink_params,
ARRAY_SIZE(mlx4_devlink_params));
err_devlink_unregister:
devlink_unregister(devlink);
err_persist_free:
@ -3936,6 +4038,8 @@ static void mlx4_remove_one(struct pci_dev *pdev)
pci_release_regions(pdev);
mlx4_pci_disable_device(dev);
devlink_params_unregister(devlink, mlx4_devlink_params,
ARRAY_SIZE(mlx4_devlink_params));
devlink_unregister(devlink);
kfree(dev->persist);
devlink_free(devlink);