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SubjectRe: [PATCH mlx5-next 1/5] RDMA/mlx5: Replace struct mlx5_core_mkey by u32 key
On Tue, Jun 22, 2021 at 03:08:19PM +0300, Leon Romanovsky wrote:

> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mr.c b/drivers/net/ethernet/mellanox/mlx5/core/mr.c
> index 50af84e76fb6..7a76b5eb1c1a 100644
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/mr.c
> @@ -35,13 +35,11 @@
> #include <linux/mlx5/driver.h>
> #include "mlx5_core.h"
>
> -int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
> - struct mlx5_core_mkey *mkey,
> - u32 *in, int inlen)
> +int mlx5_core_create_mkey(struct mlx5_core_dev *dev, u32 *mkey, u32 *in,
> + int inlen)
> {
> u32 lout[MLX5_ST_SZ_DW(create_mkey_out)] = {};
> u32 mkey_index;
> - void *mkc;
> int err;
>
> MLX5_SET(create_mkey_in, in, opcode, MLX5_CMD_OP_CREATE_MKEY);
> @@ -50,38 +48,32 @@ int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
> if (err)
> return err;
>
> - mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
> mkey_index = MLX5_GET(create_mkey_out, lout, mkey_index);
> - mkey->iova = MLX5_GET64(mkc, mkc, start_addr);
> - mkey->size = MLX5_GET64(mkc, mkc, len);
> - mkey->key |= mlx5_idx_to_mkey(mkey_index);
> - mkey->pd = MLX5_GET(mkc, mkc, pd);
> - init_waitqueue_head(&mkey->wait);
> + *mkey |= mlx5_idx_to_mkey(mkey_index);


This conflicts with 0232fc2ddcf4 ("net/mlx5: Reset mkey index on creation")

Please resend/rebase. I think it should be fixed like

mkey_index = MLX5_GET(create_mkey_out, lout, mkey_index);
*mkey = (u32)mlx5_mkey_variant(mkey->key) | mlx5_idx_to_mkey(mkey_index);

mlx5_core_dbg(dev, "out 0x%x, mkey 0x%x\n", mkey_index, *mkey);
?

(though I will look at the rest of the series today, so don't rush on
this)

Jason

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