From: Raja Zidane

Compression Level is interpreted by each PMD differently.
However, lower numbers give faster compression at the expense of
compression ratio, while higher numbers may give better compression ratios
but are likely slower.
The level affects the block size, which affects performance, the bigger the
block, the faster the compression is.

The problem was that higher levels caused bigger blocks:
  size = min_block_size - 1 + level.

the solution is to reverse the above:
  size = max_block_size + 1 - level.

Fixes: 39a2c8715f8f ("compress/mlx5: add transformation operations")
Cc: matan@nvidia.com
Cc: stable@dpdk.org

Signed-off-by: Raja Zidane <redacted>

Congrats on your first patch, Raja!

Acked-by: Matan Azrad <redacted>