IB/mlx5: Use extended internal signature layout

Rather than using the basic BSF layout which utilizes a pre-configured
signature settings (sufficient for current DIF implementation), we use
the extended BSF layout to expose advanced signature settings. These
settings will also be exposed to the user later.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 24 insertions, 8 deletions

diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 4aa5634dc210..69f5378455b7 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -43,6 +43,12 @@
 #define MLX5_CPY_GRD_MASK       0xc0
 #define MLX5_CPY_APP_MASK       0x30
 #define MLX5_CPY_REF_MASK       0x0f
+#define MLX5_BSF_INC_REFTAG     (1 << 6)
+#define MLX5_BSF_INL_VALID      (1 << 15)
+#define MLX5_BSF_REFRESH_DIF    (1 << 14)
+#define MLX5_BSF_REPEAT_BLOCK   (1 << 7)
+#define MLX5_BSF_APPTAG_ESCAPE  0x1
+#define MLX5_BSF_APPREF_ESCAPE  0x2
 
 enum mlx5_qp_optpar {
         MLX5_QP_OPTPAR_ALT_ADDR_PATH            = 1 << 0,
@@ -290,6 +296,22 @@ struct mlx5_wqe_inline_seg {
         __be32  byte_count;
 };
 
+enum mlx5_sig_type {
+        MLX5_DIF_CRC = 0x1,
+        MLX5_DIF_IPCS = 0x2,
+};
+
+struct mlx5_bsf_inl {
+        __be16          vld_refresh;
+        __be16          dif_apptag;
+        __be32          dif_reftag;
+        u8              sig_type;
+        u8              rp_inv_seed;
+        u8              rsvd[3];
+        u8              dif_inc_ref_guard_check;
+        __be16          dif_app_bitmask_check;
+};
+
 struct mlx5_bsf {
         struct mlx5_bsf_basic {
                 u8              bsf_size_sbs;
@@ -313,14 +335,8 @@ struct mlx5_bsf {
                 __be32          w_tfs_psv;
                 __be32          m_tfs_psv;
         } ext;
-        struct mlx5_bsf_inl {
-                __be32          w_inl_vld;
-                __be32          w_rsvd;
-                __be64          w_block_format;
-                __be32          m_inl_vld;
-                __be32          m_rsvd;
-                __be64          m_block_format;
-        } inl;
+        struct mlx5_bsf_inl     w_inl;
+        struct mlx5_bsf_inl     m_inl;
 };
 
 struct mlx5_klm {