On Wed, Jan 11, 2017 at 05:44:01PM +0100, Olivier Matz wrote: > From: Matthieu Ternisien d'Ouville <matthieu....@6wind.com> > > Retrieving link status information through the link update callback should > be quick and non-blocking. > > Mellanox PMDs retrieve this information through ioctl() calls on the > related kernel netdevice. This appears to take a long time to > complete and may cause significant slowdowns in applications. > > While these system calls cannot be accelerated, removing the lock on the > private structure allows applications to perform other control operations > from separate threads in the meantime. This function remains safe without > locking as it does not write the private structure, it is only used to > retrieve the name of the netdevice. > > Signed-off-by: Matthieu Ternisien d'Ouville <matthieu....@6wind.com> > Signed-off-by: Olivier Matz <olivier.m...@6wind.com> > --- > drivers/net/mlx4/mlx4.c | 32 ++++++-------------------------- > drivers/net/mlx5/mlx5.c | 2 +- > drivers/net/mlx5/mlx5.h | 1 - > drivers/net/mlx5/mlx5_ethdev.c | 30 ++++++------------------------ > 4 files changed, 13 insertions(+), 52 deletions(-)
Acked-by: Adrien Mazarguil <adrien.mazarg...@6wind.com> -- Adrien Mazarguil 6WIND
