43 	struct mlx4_en_dev *mdev =  in mlx4_en_read_clock()  local
45 	struct mlx4_dev *dev = mdev->dev;  in mlx4_en_read_clock()
61 void mlx4_en_fill_hwtstamps(struct mlx4_en_dev *mdev,  in mlx4_en_fill_hwtstamps()  argument
68 	read_lock_irqsave(&mdev->clock_lock, flags);  in mlx4_en_fill_hwtstamps()
69 	nsec = timecounter_cyc2time(&mdev->clock, timestamp);  in mlx4_en_fill_hwtstamps()
70 	read_unlock_irqrestore(&mdev->clock_lock, flags);  in mlx4_en_fill_hwtstamps()
82 void mlx4_en_remove_timestamp(struct mlx4_en_dev *mdev)  in mlx4_en_remove_timestamp()  argument
84 	if (mdev->ptp_clock) {  in mlx4_en_remove_timestamp()
85 		ptp_clock_unregister(mdev->ptp_clock);  in mlx4_en_remove_timestamp()
86 		mdev->ptp_clock = NULL;  in mlx4_en_remove_timestamp()
87 		mlx4_info(mdev, "removed PHC\n");  in mlx4_en_remove_timestamp()
98 void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev)  in mlx4_en_ptp_overflow_check()  argument
100 	bool timeout = time_is_before_jiffies(mdev->last_overflow_check +  in mlx4_en_ptp_overflow_check()
105 		write_lock_irqsave(&mdev->clock_lock, flags);  in mlx4_en_ptp_overflow_check()
106 		timecounter_read(&mdev->clock);  in mlx4_en_ptp_overflow_check()
107 		write_unlock_irqrestore(&mdev->clock_lock, flags);  in mlx4_en_ptp_overflow_check()
108 		mdev->last_overflow_check = jiffies;  in mlx4_en_ptp_overflow_check()
126 	struct mlx4_en_dev *mdev = container_of(ptp, struct mlx4_en_dev,  in mlx4_en_phc_adjfreq()  local
133 	mult = mdev->nominal_c_mult;  in mlx4_en_phc_adjfreq()
138 	write_lock_irqsave(&mdev->clock_lock, flags);  in mlx4_en_phc_adjfreq()
139 	timecounter_read(&mdev->clock);  in mlx4_en_phc_adjfreq()
140 	mdev->cycles.mult = neg_adj ? mult - diff : mult + diff;  in mlx4_en_phc_adjfreq()
141 	write_unlock_irqrestore(&mdev->clock_lock, flags);  in mlx4_en_phc_adjfreq()
155 	struct mlx4_en_dev *mdev = container_of(ptp, struct mlx4_en_dev,  in mlx4_en_phc_adjtime()  local
159 	write_lock_irqsave(&mdev->clock_lock, flags);  in mlx4_en_phc_adjtime()
160 	timecounter_adjtime(&mdev->clock, delta);  in mlx4_en_phc_adjtime()
161 	write_unlock_irqrestore(&mdev->clock_lock, flags);  in mlx4_en_phc_adjtime()
177 	struct mlx4_en_dev *mdev = container_of(ptp, struct mlx4_en_dev,  in mlx4_en_phc_gettime()  local
182 	write_lock_irqsave(&mdev->clock_lock, flags);  in mlx4_en_phc_gettime()
183 	ns = timecounter_read(&mdev->clock);  in mlx4_en_phc_gettime()
184 	write_unlock_irqrestore(&mdev->clock_lock, flags);  in mlx4_en_phc_gettime()
202 	struct mlx4_en_dev *mdev = container_of(ptp, struct mlx4_en_dev,  in mlx4_en_phc_settime()  local
208 	write_lock_irqsave(&mdev->clock_lock, flags);  in mlx4_en_phc_settime()
209 	timecounter_init(&mdev->clock, &mdev->cycles, ns);  in mlx4_en_phc_settime()
210 	write_unlock_irqrestore(&mdev->clock_lock, flags);  in mlx4_en_phc_settime()
266 void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev)  in mlx4_en_init_timestamp()  argument
268 	struct mlx4_dev *dev = mdev->dev;  in mlx4_en_init_timestamp()
275 	if (mdev->ptp_clock)  in mlx4_en_init_timestamp()
278 	rwlock_init(&mdev->clock_lock);  in mlx4_en_init_timestamp()
280 	memset(&mdev->cycles, 0, sizeof(mdev->cycles));  in mlx4_en_init_timestamp()
281 	mdev->cycles.read = mlx4_en_read_clock;  in mlx4_en_init_timestamp()
282 	mdev->cycles.mask = CLOCKSOURCE_MASK(48);  in mlx4_en_init_timestamp()
283 	mdev->cycles.shift = freq_to_shift(dev->caps.hca_core_clock);  in mlx4_en_init_timestamp()
284 	mdev->cycles.mult =  in mlx4_en_init_timestamp()
285 		clocksource_khz2mult(1000 * dev->caps.hca_core_clock, mdev->cycles.shift);  in mlx4_en_init_timestamp()
286 	mdev->nominal_c_mult = mdev->cycles.mult;  in mlx4_en_init_timestamp()
288 	write_lock_irqsave(&mdev->clock_lock, flags);  in mlx4_en_init_timestamp()
289 	timecounter_init(&mdev->clock, &mdev->cycles,  in mlx4_en_init_timestamp()
291 	write_unlock_irqrestore(&mdev->clock_lock, flags);  in mlx4_en_init_timestamp()
294 	mdev->ptp_clock_info = mlx4_en_ptp_clock_info;  in mlx4_en_init_timestamp()
295 	snprintf(mdev->ptp_clock_info.name, 16, "mlx4 ptp");  in mlx4_en_init_timestamp()
297 	mdev->ptp_clock = ptp_clock_register(&mdev->ptp_clock_info,  in mlx4_en_init_timestamp()
298 					     &mdev->pdev->dev);  in mlx4_en_init_timestamp()
299 	if (IS_ERR(mdev->ptp_clock)) {  in mlx4_en_init_timestamp()
300 		mdev->ptp_clock = NULL;  in mlx4_en_init_timestamp()
301 		mlx4_err(mdev, "ptp_clock_register failed\n");  in mlx4_en_init_timestamp()
303 		mlx4_info(mdev, "registered PHC clock\n");  in mlx4_en_init_timestamp()