diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c index d27c239e7d6c..ca0ee9916e9e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c @@ -72,7 +72,7 @@ static u64 read_internal_timer(const struct cyclecounter *cc) struct mlx5_core_dev *mdev = container_of(clock, struct mlx5_core_dev, clock); - return mlx5_read_internal_timer(mdev) & cc->mask; + return mlx5_read_internal_timer(mdev, NULL) & cc->mask; } static void mlx5_update_clock_info_page(struct mlx5_core_dev *mdev) @@ -156,15 +156,19 @@ static int mlx5_ptp_settime(struct ptp_clock_info *ptp, return 0; } -static int mlx5_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) +static int mlx5_ptp_gettimex(struct ptp_clock_info *ptp, struct timespec64 *ts, + struct ptp_system_timestamp *sts) { struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock, ptp_info); - u64 ns; + struct mlx5_core_dev *mdev = container_of(clock, struct mlx5_core_dev, + clock); unsigned long flags; + u64 cycles, ns; write_seqlock_irqsave(&clock->lock, flags); - ns = timecounter_read(&clock->tc); + cycles = mlx5_read_internal_timer(mdev, sts); + ns = timecounter_cyc2time(&clock->tc, cycles); write_sequnlock_irqrestore(&clock->lock, flags); *ts = ns_to_timespec64(ns); @@ -307,7 +311,7 @@ static int mlx5_perout_configure(struct ptp_clock_info *ptp, ts.tv_sec = rq->perout.start.sec; ts.tv_nsec = rq->perout.start.nsec; ns = timespec64_to_ns(&ts); - cycles_now = mlx5_read_internal_timer(mdev); + cycles_now = mlx5_read_internal_timer(mdev, NULL); write_seqlock_irqsave(&clock->lock, flags); nsec_now = timecounter_cyc2time(&clock->tc, cycles_now); nsec_delta = ns - nsec_now; @@ -384,7 +388,7 @@ static const struct ptp_clock_info mlx5_ptp_clock_info = { .pps = 0, .adjfreq = mlx5_ptp_adjfreq, .adjtime = mlx5_ptp_adjtime, - .gettime64 = mlx5_ptp_gettime, + .gettimex64 = mlx5_ptp_gettimex, .settime64 = mlx5_ptp_settime, .enable = NULL, .verify = NULL, @@ -469,8 +473,8 @@ static int mlx5_pps_event(struct notifier_block *nb, ptp_clock_event(clock->ptp, &ptp_event); break; case PTP_PF_PEROUT: - mlx5_ptp_gettime(&clock->ptp_info, &ts); - cycles_now = mlx5_read_internal_timer(mdev); + mlx5_ptp_gettimex(&clock->ptp_info, &ts, NULL); + cycles_now = mlx5_read_internal_timer(mdev, NULL); ts.tv_sec += 1; ts.tv_nsec = 0; ns = timespec64_to_ns(&ts); @@ -517,14 +521,14 @@ void mlx5_init_clock(struct mlx5_core_dev *mdev) ktime_to_ns(ktime_get_real())); /* Calculate period in seconds to call the overflow watchdog - to make - * sure counter is checked at least once every wrap around. + * sure counter is checked at least twice every wrap around. * The period is calculated as the minimum between max HW cycles count * (The clock source mask) and max amount of cycles that can be * multiplied by clock multiplier where the result doesn't exceed * 64bits. */ overflow_cycles = div64_u64(~0ULL >> 1, clock->cycles.mult); - overflow_cycles = min(overflow_cycles, clock->cycles.mask >> 1); + overflow_cycles = min(overflow_cycles, div_u64(clock->cycles.mask, 3)); ns = cyclecounter_cyc2ns(&clock->cycles, overflow_cycles, frac, &frac); |