4.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eugenia Emantayev <euge...@mellanox.com>
[ Upstream commit cf5033089b078303b102b65e3ccbbfa3ce0f4367 ]
Add the missing option to enable the PTP_CLK_PPS function.
In this case pin should be configured as 1PPS IN first and
then it will be connected to PPS mechanism.
Events will be reported as PTP_CLOCK_PPSUSR events to relevant sysfs.
Fixes: ee7f12205abc ('net/mlx5e: Implement 1PPS support')
Signed-off-by: Eugenia Emantayev <euge...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 1 +
drivers/net/ethernet/mellanox/mlx5/core/en_clock.c | 20 ++++++++++++++++++++
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 1 -
3 files changed, 21 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -266,6 +266,7 @@ struct mlx5e_pps {
u8 pin_caps[MAX_PIN_NUM];
struct work_struct out_work;
u64 start[MAX_PIN_NUM];
+ u8 enabled;
};
struct mlx5e_tstamp {
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
@@ -394,6 +394,17 @@ static int mlx5e_perout_configure(struct
MLX5E_EVENT_MODE_REPETETIVE & on);
}
+static int mlx5e_pps_configure(struct ptp_clock_info *ptp,
+ struct ptp_clock_request *rq,
+ int on)
+{
+ struct mlx5e_tstamp *tstamp =
+ container_of(ptp, struct mlx5e_tstamp, ptp_info);
+
+ tstamp->pps_info.enabled = !!on;
+ return 0;
+}
+
static int mlx5e_ptp_enable(struct ptp_clock_info *ptp,
struct ptp_clock_request *rq,
int on)
@@ -403,6 +414,8 @@ static int mlx5e_ptp_enable(struct ptp_c
return mlx5e_extts_configure(ptp, rq, on);
case PTP_CLK_REQ_PEROUT:
return mlx5e_perout_configure(ptp, rq, on);
+ case PTP_CLK_REQ_PPS:
+ return mlx5e_pps_configure(ptp, rq, on);
default:
return -EOPNOTSUPP;
}
@@ -448,6 +461,7 @@ static int mlx5e_init_pin_config(struct
return -ENOMEM;
tstamp->ptp_info.enable = mlx5e_ptp_enable;
tstamp->ptp_info.verify = mlx5e_ptp_verify;
+ tstamp->ptp_info.pps = 1;
for (i = 0; i < tstamp->ptp_info.n_pins; i++) {
snprintf(tstamp->ptp_info.pin_config[i].name,
@@ -499,6 +513,12 @@ void mlx5e_pps_event_handler(struct mlx5
switch (tstamp->ptp_info.pin_config[pin].func) {
case PTP_PF_EXTTS:
+ if (tstamp->pps_info.enabled) {
+ event->type = PTP_CLOCK_PPSUSR;
+ event->pps_times.ts_real =
ns_to_timespec64(event->timestamp);
+ } else {
+ event->type = PTP_CLOCK_EXTTS;
+ }
ptp_clock_event(tstamp->ptp, event);
break;
case PTP_PF_PEROUT:
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -365,7 +365,6 @@ static void mlx5e_async_event(struct mlx
break;
case MLX5_DEV_EVENT_PPS:
eqe = (struct mlx5_eqe *)param;
- ptp_event.type = PTP_CLOCK_EXTTS;
ptp_event.index = eqe->data.pps.pin;
ptp_event.timestamp =
timecounter_cyc2time(&priv->tstamp.clock,
