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mlxsw: core: Add a new interface for reading the hardware free running clock

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Add two new bus operations for reading the hardware free running clock.

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shalom Toledo 2019-06-11 18:45:05 +03:00 committed by David S. Miller
parent 4b6b8c02f6
commit 34dacb4d51
2 changed files with 19 additions and 1 deletions
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12
drivers/net/ethernet/mellanox/mlxsw/core.c
View File

@ -2026,6 +2026,18 @@ int mlxsw_core_resources_query(struct mlxsw_core *mlxsw_core, char *mbox,
}
EXPORT_SYMBOL(mlxsw_core_resources_query);
u32 mlxsw_core_read_frc_h(struct mlxsw_core *mlxsw_core)
{
return mlxsw_core->bus->read_frc_h(mlxsw_core->bus_priv);
}
EXPORT_SYMBOL(mlxsw_core_read_frc_h);
u32 mlxsw_core_read_frc_l(struct mlxsw_core *mlxsw_core)
{
return mlxsw_core->bus->read_frc_l(mlxsw_core->bus_priv);
}
EXPORT_SYMBOL(mlxsw_core_read_frc_l);
static int __init mlxsw_core_module_init(void)
{
int err;

8
drivers/net/ethernet/mellanox/mlxsw/core.h
View File

@ -309,6 +309,9 @@ int mlxsw_core_kvd_sizes_get(struct mlxsw_core *mlxsw_core,
void mlxsw_core_fw_flash_start(struct mlxsw_core *mlxsw_core);
void mlxsw_core_fw_flash_end(struct mlxsw_core *mlxsw_core);
u32 mlxsw_core_read_frc_h(struct mlxsw_core *mlxsw_core);
u32 mlxsw_core_read_frc_l(struct mlxsw_core *mlxsw_core);
bool mlxsw_core_res_valid(struct mlxsw_core *mlxsw_core,
enum mlxsw_res_id res_id);
@ -339,6 +342,8 @@ struct mlxsw_bus {
char *in_mbox, size_t in_mbox_size,
char *out_mbox, size_t out_mbox_size,
u8 *p_status);
u32 (*read_frc_h)(void *bus_priv);
u32 (*read_frc_l)(void *bus_priv);
u8 features;
};
@ -356,7 +361,8 @@ struct mlxsw_bus_info {
struct mlxsw_fw_rev fw_rev;
u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN];
u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN];
u8 low_frequency;
u8 low_frequency:1,
read_frc_capable:1;
};
struct mlxsw_hwmon;