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| author | Rahul Rameshbabu <rrameshbabu@nvidia.com> | 2022-12-05 14:26:09 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-18 11:30:55 +0100 |
| commit | 6b37805d06ac6bbfcddd54b48a92a0fca9c74d88 (patch) | |
| tree | 5a03f463628c12418cc06d2163705e824de78dbc | |
| parent | be59f9729de33f2fdced0d896ec8e68cc0ba2848 (diff) | |
| download | linux-6b37805d06ac6bbfcddd54b48a92a0fca9c74d88.tar.gz linux-6b37805d06ac6bbfcddd54b48a92a0fca9c74d88.tar.bz2 linux-6b37805d06ac6bbfcddd54b48a92a0fca9c74d88.zip | |
net/mlx5: Fix ptp max frequency adjustment range
[ Upstream commit fe91d57277eef8bb4aca05acfa337b4a51d0bba4 ]
.max_adj of ptp_clock_info acts as an absolute value for the amount in ppb
that can be set for a single call of .adjfine. This means that a single
call to .getfine cannot be greater than .max_adj or less than -(.max_adj).
Provides correct value for max frequency adjustment value supported by
devices.
Fixes: 3d8c38af1493 ("net/mlx5e: Add PTP Hardware Clock (PHC) support")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c index 3ef63103d33f..dee65443d76b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c @@ -396,7 +396,7 @@ static int mlx5_ptp_verify(struct ptp_clock_info *ptp, unsigned int pin, static const struct ptp_clock_info mlx5_ptp_clock_info = { .owner = THIS_MODULE, .name = "mlx5_ptp", - .max_adj = 100000000, + .max_adj = 50000000, .n_alarm = 0, .n_ext_ts = 0, .n_per_out = 0, |