diff options
| author |   Richard Cochran <richardcochran@gmail.com> | 2019-11-14 10:45:02 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-11-15 12:48:32 -0800 |
| commit | 6138e687c7b679da08c0feb55a88f448f7890c07 (patch) | |
| tree | 5fa29b3639962a57b0b0e7e81690311ff2b06710 /drivers/net/ethernet | |
| parent | renesas: reject unsupported external timestamp flags (diff) | |
| download | linux-dev-6138e687c7b679da08c0feb55a88f448f7890c07.tar.xz linux-dev-6138e687c7b679da08c0feb55a88f448f7890c07.zip | |
ptp: Introduce strict checking of external time stamp options.
User space may request time stamps on rising edges, falling edges, or
both. However, the particular mode may or may not be supported in the
hardware or in the driver. This patch adds a "strict" flag that tells
drivers to ensure that the requested mode will be honored.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_ptp.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb_ptp.c | 3 |
3 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c index 0bce3e0f1af0..3fd60715bca7 100644 --- a/drivers/net/ethernet/intel/igb/igb_ptp.c +++ b/drivers/net/ethernet/intel/igb/igb_ptp.c @@ -524,7 +524,8 @@ static int igb_ptp_feature_enable_i210(struct ptp_clock_info *ptp, /* Reject requests with unsupported flags */ if (rq->extts.flags & ~(PTP_ENABLE_FEATURE | PTP_RISING_EDGE | - PTP_FALLING_EDGE)) + PTP_FALLING_EDGE | + PTP_STRICT_FLAGS)) return -EOPNOTSUPP; if (on) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c index 9a40f24e3193..819097d9b583 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c @@ -239,7 +239,8 @@ static int mlx5_extts_configure(struct ptp_clock_info *ptp, /* Reject requests with unsupported flags */ if (rq->extts.flags & ~(PTP_ENABLE_FEATURE | PTP_RISING_EDGE | - PTP_FALLING_EDGE)) + PTP_FALLING_EDGE | + PTP_STRICT_FLAGS)) return -EOPNOTSUPP; if (rq->extts.index >= clock->ptp_info.n_pins) diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c index 666dbee48097..6984bd5b7da9 100644 --- a/drivers/net/ethernet/renesas/ravb_ptp.c +++ b/drivers/net/ethernet/renesas/ravb_ptp.c @@ -185,7 +185,8 @@ static int ravb_ptp_extts(struct ptp_clock_info *ptp, /* Reject requests with unsupported flags */ if (req->flags & ~(PTP_ENABLE_FEATURE | PTP_RISING_EDGE | - PTP_FALLING_EDGE)) + PTP_FALLING_EDGE | + PTP_STRICT_FLAGS)) return -EOPNOTSUPP; if (req->index) |