diff options
| author | Eli Cohen <eli@mellanox.com> | 2018-08-09 01:23:53 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-08-09 04:34:55 +0200 |
| commit | 269d26f47f6f7d4275b0e225c9ee80cf4a31aa8c (patch) | |
| tree | cd48df3febdd05b0f84c512c1993797c6f221dc7 | |
| parent | net/mlx5: Unexport functions that need not be exported (diff) | |
| download | linux-269d26f47f6f7d4275b0e225c9ee80cf4a31aa8c.tar.xz linux-269d26f47f6f7d4275b0e225c9ee80cf4a31aa8c.zip | |
net/mlx5: Reduce command polling interval
Use cond_resched() instead of usleep_range() to decrease the time
between polling attempts thus reducing overall driver load time.
Below is a comparison before and after the change, of loading eight
virtual functions.
Before:
real 0m8.785s
user 0m0.093s
sys 0m0.090s
After:
real 0m5.730s
user 0m0.097s
sys 0m0.087s
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c index f498c7730c5b..fe4ac40dbade 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c @@ -211,7 +211,7 @@ static void poll_timeout(struct mlx5_cmd_work_ent *ent) ent->ret = 0; return; } - usleep_range(5000, 10000); + cond_resched(); } while (time_before(jiffies, poll_end)); ent->ret = -ETIMEDOUT; |