4.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eugenia Emantayev <eugenia@xxxxxxxxxxxx>
[ Upstream commit fa3676885e3b5be1edfa1b2cc775e20a45b34a19 ]
In order to mark relevant fields while setting the MTPPS register
add field select. Otherwise it can cause a misconfiguration in
firmware.
Fixes: ee7f12205abc ('net/mlx5e: Implement 1PPS support')
Signed-off-by: Eugenia Emantayev <eugenia@xxxxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/en_clock.c | 29 +++++++++++++++-----
drivers/net/ethernet/mellanox/mlx5/core/eq.c | 2 -
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h | 5 +++
include/linux/mlx5/mlx5_ifc.h | 10 ++++--
4 files changed, 36 insertions(+), 10 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
@@ -53,6 +53,15 @@ enum {
MLX5E_EVENT_MODE_ONCE_TILL_ARM = 0x2,
};
+enum {
+ MLX5E_MTPPS_FS_ENABLE = BIT(0x0),
+ MLX5E_MTPPS_FS_PATTERN = BIT(0x2),
+ MLX5E_MTPPS_FS_PIN_MODE = BIT(0x3),
+ MLX5E_MTPPS_FS_TIME_STAMP = BIT(0x4),
+ MLX5E_MTPPS_FS_OUT_PULSE_DURATION = BIT(0x5),
+ MLX5E_MTPPS_FS_ENH_OUT_PER_ADJ = BIT(0x7),
+};
+
void mlx5e_fill_hwstamp(struct mlx5e_tstamp *tstamp, u64 timestamp,
struct skb_shared_hwtstamps *hwts)
{
@@ -222,7 +231,10 @@ static int mlx5e_ptp_adjfreq(struct ptp_
/* For future use need to add a loop for finding all 1PPS out pins */
MLX5_SET(mtpps_reg, in, pin_mode, MLX5E_PIN_MODE_OUT);
- MLX5_SET(mtpps_reg, in, out_periodic_adjustment, delta & 0xFFFF);
+ MLX5_SET(mtpps_reg, in, enhanced_out_periodic_adjustment, delta);
+ MLX5_SET(mtpps_reg, in, field_select,
+ MLX5E_MTPPS_FS_PIN_MODE |
+ MLX5E_MTPPS_FS_ENH_OUT_PER_ADJ);
mlx5_set_mtpps(priv->mdev, in, sizeof(in));
}
@@ -258,8 +270,7 @@ static int mlx5e_extts_configure(struct
int pin = -1;
int err = 0;
- if (!MLX5_CAP_GEN(priv->mdev, pps) ||
- !MLX5_CAP_GEN(priv->mdev, pps_modify))
+ if (!MLX5_PPS_CAP(priv->mdev))
return -EOPNOTSUPP;
if (rq->extts.index >= tstamp->ptp_info.n_pins)
@@ -278,6 +289,9 @@ static int mlx5e_extts_configure(struct
MLX5_SET(mtpps_reg, in, pin_mode, MLX5E_PIN_MODE_IN);
MLX5_SET(mtpps_reg, in, pattern, pattern);
MLX5_SET(mtpps_reg, in, enable, on);
+ MLX5_SET(mtpps_reg, in, field_select, MLX5E_MTPPS_FS_PIN_MODE |
+ MLX5E_MTPPS_FS_PATTERN |
+ MLX5E_MTPPS_FS_ENABLE);
err = mlx5_set_mtpps(priv->mdev, in, sizeof(in));
if (err)
@@ -303,7 +317,7 @@ static int mlx5e_perout_configure(struct
int pin = -1;
s64 ns;
- if (!MLX5_CAP_GEN(priv->mdev, pps_modify))
+ if (!MLX5_PPS_CAP(priv->mdev))
return -EOPNOTSUPP;
if (rq->perout.index >= tstamp->ptp_info.n_pins)
@@ -338,7 +352,10 @@ static int mlx5e_perout_configure(struct
MLX5_SET(mtpps_reg, in, pattern, MLX5E_OUT_PATTERN_PERIODIC);
MLX5_SET(mtpps_reg, in, enable, on);
MLX5_SET64(mtpps_reg, in, time_stamp, time_stamp);
-
+ MLX5_SET(mtpps_reg, in, field_select, MLX5E_MTPPS_FS_PIN_MODE |
+ MLX5E_MTPPS_FS_PATTERN |
+ MLX5E_MTPPS_FS_ENABLE |
+ MLX5E_MTPPS_FS_TIME_STAMP);
return mlx5_set_mtpps(priv->mdev, in, sizeof(in));
}
@@ -488,7 +505,7 @@ void mlx5e_timestamp_init(struct mlx5e_p
#define MAX_PIN_NUM 8
tstamp->pps_pin_caps = kzalloc(sizeof(u8) * MAX_PIN_NUM, GFP_KERNEL);
if (tstamp->pps_pin_caps) {
- if (MLX5_CAP_GEN(priv->mdev, pps))
+ if (MLX5_PPS_CAP(priv->mdev))
mlx5e_get_pps_caps(priv, tstamp);
if (tstamp->ptp_info.n_pins)
mlx5e_init_pin_config(tstamp);
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -690,7 +690,7 @@ int mlx5_start_eqs(struct mlx5_core_dev
else
mlx5_core_dbg(dev, "port_module_event is not set\n");
- if (MLX5_CAP_GEN(dev, pps))
+ if (MLX5_PPS_CAP(dev))
async_event_mask |= (1ull << MLX5_EVENT_TYPE_PPS_EVENT);
err = mlx5_create_map_eq(dev, &table->cmd_eq, MLX5_EQ_VEC_CMD,
--- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
@@ -153,6 +153,11 @@ int mlx5_set_mtpps(struct mlx5_core_dev
int mlx5_query_mtppse(struct mlx5_core_dev *mdev, u8 pin, u8 *arm, u8 *mode);
int mlx5_set_mtppse(struct mlx5_core_dev *mdev, u8 pin, u8 arm, u8 mode);
+#define MLX5_PPS_CAP(mdev) (MLX5_CAP_GEN((mdev), pps) && \
+ MLX5_CAP_GEN((mdev), pps_modify) && \
+ MLX5_CAP_MCAM_FEATURE((mdev), mtpps_fs) && \
+ MLX5_CAP_MCAM_FEATURE((mdev), mtpps_enh_out_per_adj))
+
void mlx5e_init(void);
void mlx5e_cleanup(void);
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -7718,8 +7718,10 @@ struct mlx5_ifc_pcam_reg_bits {
};
struct mlx5_ifc_mcam_enhanced_features_bits {
- u8 reserved_at_0[0x7f];
+ u8 reserved_at_0[0x7d];
+ u8 mtpps_enh_out_per_adj[0x1];
+ u8 mtpps_fs[0x1];
u8 pcie_performance_group[0x1];
};
@@ -8115,7 +8117,8 @@ struct mlx5_ifc_mtpps_reg_bits {
u8 reserved_at_78[0x4];
u8 cap_pin_4_mode[0x4];
- u8 reserved_at_80[0x80];
+ u8 field_select[0x20];
+ u8 reserved_at_a0[0x60];
u8 enable[0x1];
u8 reserved_at_101[0xb];
@@ -8130,8 +8133,9 @@ struct mlx5_ifc_mtpps_reg_bits {
u8 out_pulse_duration[0x10];
u8 out_periodic_adjustment[0x10];
+ u8 enhanced_out_periodic_adjustment[0x20];
- u8 reserved_at_1a0[0x40];
+ u8 reserved_at_1c0[0x20];
};
struct mlx5_ifc_mtppse_reg_bits {