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authorSagi Grimberg <sagig@mellanox.com>2014-02-23 16:19:13 +0400
committerRoland Dreier <roland@purestorage.com>2014-03-07 23:40:04 +0400
commit2dea909444c294f55316c068906945ef38980ef3 (patch)
treea2660bbc11fdffd9b41cbbaccb590206c5db55ab
parentd5436ba01075ef4629015f7a00914d64ffd795d6 (diff)
downloadlinux-2dea909444c294f55316c068906945ef38980ef3.tar.xz
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>
-rw-r--r--drivers/infiniband/hw/mlx5/main.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index ba3ecec7fa65..7b9c0782105e 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -273,6 +273,15 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
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;