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authorRahul Rameshbabu <rrameshbabu@nvidia.com>2022-12-05 14:26:09 -0800
committerSaeed Mahameed <saeedm@nvidia.com>2023-01-09 22:08:36 -0800
commitfe91d57277eef8bb4aca05acfa337b4a51d0bba4 (patch)
treebfa491cbff39aefa47cc204878b577527a04d3d4 /drivers
parent3099d2e62f9061ed57798e68e285d35837be686f (diff)
downloadlinux-fe91d57277eef8bb4aca05acfa337b4a51d0bba4.tar.gz
net/mlx5: Fix ptp max frequency adjustment range
.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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c2
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 69cfe60c558a74..69318b14326881 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
@@ -681,7 +681,7 @@ 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,