releases/4.16.8/rdma-mlx4-add-missed-rss-hash-inner-header-flag.patch

   1 From 4f9ca2d8686ecfdd40ca4f0294a3d94f83f05cea Mon Sep 17 00:00:00 2001
   2 From: Leon Romanovsky <leonro@mellanox.com>
   3 Date: Thu, 26 Apr 2018 15:37:48 +0300
   4 Subject: RDMA/mlx4: Add missed RSS hash inner header flag
   5
   6 From: Leon Romanovsky <leonro@mellanox.com>
   7
   8 commit 4f9ca2d8686ecfdd40ca4f0294a3d94f83f05cea upstream.
   9
  10 Despite being advertised to user space application, the RSS inner
  11 header flag was filtered by checks at the beginning of QP creation
  12 routine.
  13
  14 Cc: <stable@vger.kernel.org> # 4.15
  15 Fixes: 4d02ebd9bbbd ("IB/mlx4: Fix RSS hash fields restrictions")
  16 Fixes: 07d84f7b6adf ("IB/mlx4: Add support to RSS hash for inner headers")
  17 Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
  18 Signed-off-by: Doug Ledford <dledford@redhat.com>
  19 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  20
  21 ---
  22  drivers/infiniband/hw/mlx4/qp.c |    3 ++-
  23  1 file changed, 2 insertions(+), 1 deletion(-)
  24
  25 --- a/drivers/infiniband/hw/mlx4/qp.c
  26 +++ b/drivers/infiniband/hw/mlx4/qp.c
  27 @@ -673,7 +673,8 @@ static int set_qp_rss(struct mlx4_ib_dev
  28                                           MLX4_IB_RX_HASH_SRC_PORT_TCP  |
  29                                           MLX4_IB_RX_HASH_DST_PORT_TCP  |
  30                                           MLX4_IB_RX_HASH_SRC_PORT_UDP  |
  31 -                                         MLX4_IB_RX_HASH_DST_PORT_UDP)) {
  32 +                                         MLX4_IB_RX_HASH_DST_PORT_UDP  |
  33 +                                         MLX4_IB_RX_HASH_INNER)) {
  34                 pr_debug("RX Hash fields_mask has unsupported mask (0x%llx)\n",
  35                          ucmd->rx_hash_fields_mask);
  36                 return (-EOPNOTSUPP);