IB/mlx5: Expose support for signature MR feature
Currently support only T10-DIF types of signature handover operations
(types 1|2|3).
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index ba3ecec..7b9c078 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -273,6 +273,15 @@
if (flags & MLX5_DEV_CAP_FLAG_XRC)
props->device_cap_flags |= IB_DEVICE_XRC;
props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
+ if (flags & MLX5_DEV_CAP_FLAG_SIG_HAND_OVER) {
+ props->device_cap_flags |= IB_DEVICE_SIGNATURE_HANDOVER;
+ /* At this stage no support for signature handover */
+ props->sig_prot_cap = IB_PROT_T10DIF_TYPE_1 |
+ IB_PROT_T10DIF_TYPE_2 |
+ IB_PROT_T10DIF_TYPE_3;
+ props->sig_guard_cap = IB_GUARD_T10DIF_CRC |
+ IB_GUARD_T10DIF_CSUM;
+ }
props->vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) &
0xffffff;