net/mlx5: Take only bit 24-26 of wqe.pftype_wq for page fault type

[ Upstream commit a48bc513159d4767f9988f0d857b2b0c38a4d614 ]

The HW spec defines only bits 24-26 of pftype_wq as the page fault type,
use the required mask to ensure that.

Fixes: d9aaed838765 ("{net,IB}/mlx5: Refactor page fault handling")
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index eb91de8..5da0b6e 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -262,7 +262,7 @@ static void eq_pf_process(struct mlx5_eq *eq)
                case MLX5_PFAULT_SUBTYPE_WQE:
                        /* WQE based event */
                        pfault->type =
-                               be32_to_cpu(pf_eqe->wqe.pftype_wq) >> 24;
+                               (be32_to_cpu(pf_eqe->wqe.pftype_wq) >> 24) & 0x7;
                        pfault->token =
                                be32_to_cpu(pf_eqe->wqe.token);
                        pfault->wqe.wq_num =