From 34dacb4d519deff74baf2049634c934e8c54e997 Mon Sep 17 00:00:00 2001
From: Shalom Toledo <shalomt@mellanox.com>
Date: Tue, 11 Jun 2019 18:45:05 +0300
Subject: [PATCH] mlxsw: core: Add a new interface for reading the hardware
free running clock
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>
---
drivers/net/ethernet/mellanox/mlxsw/core.c | 12 ++++++++++++
drivers/net/ethernet/mellanox/mlxsw/core.h | 8 +++++++-
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index 1c4ef8ed17068..30e0526a9cf61 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -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;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.h b/drivers/net/ethernet/mellanox/mlxsw/core.h
index a44ad0fb9477c..6dbb0ede502e8 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.h
@@ -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;
--
2.30.2