diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2014-07-16 23:04:44 +0200 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2014-07-24 00:01:43 +0200 |
| commit | 14a7004671246d1b799f545335995a9897de1268 (patch) | |
| tree | 877426f4f8798fdbe198095dcc46ceb36f96f0ee | |
| parent | misc: ioc4: Use ktime_get_ns() (diff) | |
| download | linux-14a7004671246d1b799f545335995a9897de1268.tar.xz linux-14a7004671246d1b799f545335995a9897de1268.zip | |
net: mlx5: Use ktime_get_ns()
This code is beyond silly:
struct timespec ts = ktime_get_ts();
ktime_t ktime = timespec_to_ktime(ts);
Further down the code builds the delta of two ktime_t values and
converts the result to nanoseconds.
Use ktime_get_ns() and replace all the nonsense.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Eli Cohen <eli@mellanox.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 16 | ||||
| -rw-r--r-- | include/linux/mlx5/driver.h | 4 |
2 files changed, 6 insertions, 14 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c index 87d1b018a9c3..67f8f5a1dc86 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c @@ -548,7 +548,7 @@ static void cmd_work_handler(struct work_struct *work) lay->status_own = CMD_OWNER_HW; set_signature(ent, !cmd->checksum_disabled); dump_command(dev, ent, 1); - ktime_get_ts(&ent->ts1); + ent->ts1 = ktime_get_ns(); /* ring doorbell after the descriptor is valid */ wmb(); @@ -637,7 +637,6 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in, { struct mlx5_cmd *cmd = &dev->cmd; struct mlx5_cmd_work_ent *ent; - ktime_t t1, t2, delta; struct mlx5_cmd_stats *stats; int err = 0; s64 ds; @@ -668,10 +667,7 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in, if (err == -ETIMEDOUT) goto out; - t1 = timespec_to_ktime(ent->ts1); - t2 = timespec_to_ktime(ent->ts2); - delta = ktime_sub(t2, t1); - ds = ktime_to_ns(delta); + ds = ent->ts2 - ent->ts1; op = be16_to_cpu(((struct mlx5_inbox_hdr *)in->first.data)->opcode); if (op < ARRAY_SIZE(cmd->stats)) { stats = &cmd->stats[op]; @@ -1135,7 +1131,6 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector) void *context; int err; int i; - ktime_t t1, t2, delta; s64 ds; struct mlx5_cmd_stats *stats; unsigned long flags; @@ -1149,7 +1144,7 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector) sem = &cmd->pages_sem; else sem = &cmd->sem; - ktime_get_ts(&ent->ts2); + ent->ts2 = ktime_get_ns(); memcpy(ent->out->first.data, ent->lay->out, sizeof(ent->lay->out)); dump_command(dev, ent, 0); if (!ent->ret) { @@ -1163,10 +1158,7 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector) } free_ent(cmd, ent->idx); if (ent->callback) { - t1 = timespec_to_ktime(ent->ts1); - t2 = timespec_to_ktime(ent->ts2); - delta = ktime_sub(t2, t1); - ds = ktime_to_ns(delta); + ds = ent->ts2 - ent->ts1; if (ent->op < ARRAY_SIZE(cmd->stats)) { stats = &cmd->stats[ent->op]; spin_lock_irqsave(&stats->lock, flags); diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 2bce4aad2570..52d631ca32cf 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -604,8 +604,8 @@ struct mlx5_cmd_work_ent { int page_queue; u8 status; u8 token; - struct timespec ts1; - struct timespec ts2; + u64 ts1; + u64 ts2; u16 op; }; |