| /* |
| * Copyright (c) 2017, Mellanox Technologies, Ltd. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #ifndef __LIB_CLOCK_H__ |
| #define __LIB_CLOCK_H__ |
| |
| #if IS_ENABLED(CONFIG_PTP_1588_CLOCK) |
| void mlx5_init_clock(struct mlx5_core_dev *mdev); |
| void mlx5_cleanup_clock(struct mlx5_core_dev *mdev); |
| void mlx5_pps_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe); |
| |
| static inline int mlx5_clock_get_ptp_index(struct mlx5_core_dev *mdev) |
| { |
| return mdev->clock.ptp ? ptp_clock_index(mdev->clock.ptp) : -1; |
| } |
| |
| static inline ktime_t mlx5_timecounter_cyc2time(struct mlx5_clock *clock, |
| u64 timestamp) |
| { |
| u64 nsec; |
| |
| read_lock(&clock->lock); |
| nsec = timecounter_cyc2time(&clock->tc, timestamp); |
| read_unlock(&clock->lock); |
| |
| return ns_to_ktime(nsec); |
| } |
| |
| #else |
| static inline void mlx5_init_clock(struct mlx5_core_dev *mdev) {} |
| static inline void mlx5_cleanup_clock(struct mlx5_core_dev *mdev) {} |
| static inline void mlx5_pps_event(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe) {} |
| |
| static inline int mlx5_clock_get_ptp_index(struct mlx5_core_dev *mdev) |
| { |
| return -1; |
| } |
| |
| static inline ktime_t mlx5_timecounter_cyc2time(struct mlx5_clock *clock, |
| u64 timestamp) |
| { |
| return 0; |
| } |
| #endif |
| |
| #endif |