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Message-Id: <20200915202533.64389-4-saeed@kernel.org>
Date: Tue, 15 Sep 2020 13:25:20 -0700
From: saeed@...nel.org
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, Eran Ben Elisha <eranbe@...lanox.com>,
Moshe Shemesh <moshe@...lanox.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 03/16] net/mlx5: Always use container_of to find mdev pointer from clock struct
From: Eran Ben Elisha <eranbe@...lanox.com>
Clock struct is part of struct mlx5_core_dev. Code was inconsistent, on
some cases used container_of and on another used clock->mdev.
Align code to use container_of amd remove clock->mdev pointer.
While here, fix reverse xmas tree coding style.
Signed-off-by: Eran Ben Elisha <eranbe@...lanox.com>
Reviewed-by: Moshe Shemesh <moshe@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../ethernet/mellanox/mlx5/core/lib/clock.c | 52 +++++++++++--------
include/linux/mlx5/driver.h | 1 -
2 files changed, 29 insertions(+), 24 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
index 2d55b7c22c03..a07aeb97d027 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
@@ -150,28 +150,30 @@ static void mlx5_pps_out(struct work_struct *work)
static void mlx5_timestamp_overflow(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
- struct mlx5_clock *clock = container_of(dwork, struct mlx5_clock,
- overflow_work);
+ struct mlx5_core_dev *mdev;
+ struct mlx5_clock *clock;
unsigned long flags;
+ clock = container_of(dwork, struct mlx5_clock, overflow_work);
+ mdev = container_of(clock, struct mlx5_core_dev, clock);
write_seqlock_irqsave(&clock->lock, flags);
timecounter_read(&clock->tc);
- mlx5_update_clock_info_page(clock->mdev);
+ mlx5_update_clock_info_page(mdev);
write_sequnlock_irqrestore(&clock->lock, flags);
schedule_delayed_work(&clock->overflow_work, clock->overflow_period);
}
-static int mlx5_ptp_settime(struct ptp_clock_info *ptp,
- const struct timespec64 *ts)
+static int mlx5_ptp_settime(struct ptp_clock_info *ptp, const struct timespec64 *ts)
{
- struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock,
- ptp_info);
+ struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock, ptp_info);
u64 ns = timespec64_to_ns(ts);
+ struct mlx5_core_dev *mdev;
unsigned long flags;
+ mdev = container_of(clock, struct mlx5_core_dev, clock);
write_seqlock_irqsave(&clock->lock, flags);
timecounter_init(&clock->tc, &clock->cycles, ns);
- mlx5_update_clock_info_page(clock->mdev);
+ mlx5_update_clock_info_page(mdev);
write_sequnlock_irqrestore(&clock->lock, flags);
return 0;
@@ -180,13 +182,12 @@ static int mlx5_ptp_settime(struct ptp_clock_info *ptp,
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);
- struct mlx5_core_dev *mdev = container_of(clock, struct mlx5_core_dev,
- clock);
+ struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock, ptp_info);
+ struct mlx5_core_dev *mdev;
unsigned long flags;
u64 cycles, ns;
+ mdev = container_of(clock, struct mlx5_core_dev, clock);
write_seqlock_irqsave(&clock->lock, flags);
cycles = mlx5_read_internal_timer(mdev, sts);
ns = timecounter_cyc2time(&clock->tc, cycles);
@@ -199,13 +200,14 @@ static int mlx5_ptp_gettimex(struct ptp_clock_info *ptp, struct timespec64 *ts,
static int mlx5_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
{
- struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock,
- ptp_info);
+ struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock, ptp_info);
+ struct mlx5_core_dev *mdev;
unsigned long flags;
+ mdev = container_of(clock, struct mlx5_core_dev, clock);
write_seqlock_irqsave(&clock->lock, flags);
timecounter_adjtime(&clock->tc, delta);
- mlx5_update_clock_info_page(clock->mdev);
+ mlx5_update_clock_info_page(mdev);
write_sequnlock_irqrestore(&clock->lock, flags);
return 0;
@@ -213,12 +215,13 @@ static int mlx5_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
static int mlx5_ptp_adjfreq(struct ptp_clock_info *ptp, s32 delta)
{
- u64 adj;
- u32 diff;
+ struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock, ptp_info);
+ struct mlx5_core_dev *mdev;
unsigned long flags;
int neg_adj = 0;
- struct mlx5_clock *clock = container_of(ptp, struct mlx5_clock,
- ptp_info);
+ u32 diff;
+ u64 adj;
+
if (delta < 0) {
neg_adj = 1;
@@ -229,11 +232,12 @@ static int mlx5_ptp_adjfreq(struct ptp_clock_info *ptp, s32 delta)
adj *= delta;
diff = div_u64(adj, 1000000000ULL);
+ mdev = container_of(clock, struct mlx5_core_dev, clock);
write_seqlock_irqsave(&clock->lock, flags);
timecounter_read(&clock->tc);
clock->cycles.mult = neg_adj ? clock->nominal_c_mult - diff :
clock->nominal_c_mult + diff;
- mlx5_update_clock_info_page(clock->mdev);
+ mlx5_update_clock_info_page(mdev);
write_sequnlock_irqrestore(&clock->lock, flags);
return 0;
@@ -465,7 +469,8 @@ static int mlx5_query_mtpps_pin_mode(struct mlx5_core_dev *mdev, u8 pin,
static int mlx5_get_pps_pin_mode(struct mlx5_clock *clock, u8 pin)
{
- struct mlx5_core_dev *mdev = clock->mdev;
+ struct mlx5_core_dev *mdev = container_of(clock, struct mlx5_core_dev, clock);
+
u32 out[MLX5_ST_SZ_DW(mtpps_reg)] = {};
u8 mode;
int err;
@@ -538,15 +543,17 @@ static int mlx5_pps_event(struct notifier_block *nb,
unsigned long type, void *data)
{
struct mlx5_clock *clock = mlx5_nb_cof(nb, struct mlx5_clock, pps_nb);
- struct mlx5_core_dev *mdev = clock->mdev;
struct ptp_clock_event ptp_event;
u64 cycles_now, cycles_delta;
u64 nsec_now, nsec_delta, ns;
struct mlx5_eqe *eqe = data;
int pin = eqe->data.pps.pin;
+ struct mlx5_core_dev *mdev;
struct timespec64 ts;
unsigned long flags;
+ mdev = container_of(clock, struct mlx5_core_dev, clock);
+
switch (clock->ptp_info.pin_config[pin].func) {
case PTP_PF_EXTTS:
ptp_event.index = pin;
@@ -605,7 +612,6 @@ void mlx5_init_clock(struct mlx5_core_dev *mdev)
clock->cycles.shift);
clock->nominal_c_mult = clock->cycles.mult;
clock->cycles.mask = CLOCKSOURCE_MASK(41);
- clock->mdev = mdev;
timecounter_init(&clock->tc, &clock->cycles,
ktime_to_ns(ktime_get_real()));
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index c145de0473bc..8dc3da6e6480 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -643,7 +643,6 @@ struct mlx5_pps {
};
struct mlx5_clock {
- struct mlx5_core_dev *mdev;
struct mlx5_nb pps_nb;
seqlock_t lock;
struct cyclecounter cycles;
--
2.26.2
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