Re: [PATCH mlx5-next 1/9] RDMA/mlx5: Move asynchronous mkey creation to mlx5_ib

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On Thu, Feb 27, 2020 at 07:41:24PM +0000, Saeed Mahameed wrote:
> On Thu, 2020-02-27 at 14:33 +0200, Leon Romanovsky wrote:
> > From: Michael Guralnik <michaelgur@xxxxxxxxxxxx>
> > 
> > As mlx5_ib is the only user of the mlx5_core_create_mkey_cb, move the
> > logic inside mlx5_ib and cleanup the code in mlx5_core.
> > 
> 
> I have a WIP series that is moving the whole mr.c to mlx5_ib.
> https://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git/log/?h=topic/mr-relocate
> 
> 
> > Signed-off-by: Michael Guralnik <michaelgur@xxxxxxxxxxxx>
> > Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> >  drivers/infiniband/hw/mlx5/mr.c              | 25 ++++++++++++++++
> >  drivers/net/ethernet/mellanox/mlx5/core/mr.c | 22 +++--------------
> >  include/linux/mlx5/driver.h                  |  6 -----
> >  3 files changed, 24 insertions(+), 29 deletions(-)
> > 
> > diff --git a/drivers/infiniband/hw/mlx5/mr.c
> > b/drivers/infiniband/hw/mlx5/mr.c
> > index 6fa0a83c19de..dea14477a676 100644
> > +++ b/drivers/infiniband/hw/mlx5/mr.c
> > @@ -79,6 +79,25 @@ static bool use_umr_mtt_update(struct mlx5_ib_mr
> > *mr, u64 start, u64 length)
> >  		length + (start & (MLX5_ADAPTER_PAGE_SIZE - 1));
> >  }
> >  
> > +static int create_mkey_cb(struct mlx5_core_dev *dev, struct
> > mlx5_ib_mr *mr,
> > +			  struct mlx5_async_ctx *async_ctx, u32 *in,
> > int inlen,
> > +			  mlx5_async_cbk_t callback)
> > +{
> > +	void *mkc;
> > +	u8 key;
> > +
> > +	spin_lock_irq(&dev->priv.mkey_lock);
> > +	key = dev->priv.mkey_key++;
> 
> you know i don't like mlx5_ib sniffing around mlx5_core->priv .. 
> 
> this is handled correctly in my series, i can rebase it and make it
> ready in a couple of days.. let me know if this will be good enough for
> you.

How about Michael just take the two relevant patches into this series

{IB,net}/mlx5: Setup mkey variant before mr create command invocation
{IB,net}/mlx5: Assign mkey variant in mlx5_ib only

And this partially moves toward your series. It will be more than a
few days to rebase and check all the parts of your series I think.

Jason



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