releases/4.14.112/net-mlx5-decrease-default-mr-cache-size.patch

   1 From foo@baz Mon Apr 15 07:47:06 CEST 2019
   2 From: Artemy Kovalyov <artemyko@mellanox.com>
   3 Date: Tue, 19 Mar 2019 11:24:38 +0200
   4 Subject: net/mlx5: Decrease default mr cache size
   5
   6 From: Artemy Kovalyov <artemyko@mellanox.com>
   7
   8 [ Upstream commit e8b26b2135dedc0284490bfeac06dfc4418d0105 ]
   9
  10 Delete initialization of high order entries in mr cache to decrease initial
  11 memory footprint. When required, the administrator can populate the
  12 entries with memory keys via the /sys interface.
  13
  14 This approach is very helpful to significantly reduce the per HW function
  15 memory footprint in virtualization environments such as SRIOV.
  16
  17 Fixes: 9603b61de1ee ("mlx5: Move pci device handling from mlx5_ib to mlx5_core")
  18 Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
  19 Signed-off-by: Moni Shoua <monis@mellanox.com>
  20 Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
  21 Reported-by:  Shalom Toledo <shalomt@mellanox.com>
  22 Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
  23 Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
  24 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  25 ---
  26  drivers/net/ethernet/mellanox/mlx5/core/main.c |   20 --------------------
  27  1 file changed, 20 deletions(-)
  28
  29 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
  30 +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
  31 @@ -155,26 +155,6 @@ static struct mlx5_profile profile[] = {
  32                         .size   = 8,
  33                         .limit  = 4
  34                 },
  35 -               .mr_cache[16]   = {
  36 -                       .size   = 8,
  37 -                       .limit  = 4
  38 -               },
  39 -               .mr_cache[17]   = {
  40 -                       .size   = 8,
  41 -                       .limit  = 4
  42 -               },
  43 -               .mr_cache[18]   = {
  44 -                       .size   = 8,
  45 -                       .limit  = 4
  46 -               },
  47 -               .mr_cache[19]   = {
  48 -                       .size   = 4,
  49 -                       .limit  = 2
  50 -               },
  51 -               .mr_cache[20]   = {
  52 -                       .size   = 4,
  53 -                       .limit  = 2
  54 -               },
  55         },
  56  };
  57