Hi Doug, This patch-set from Noa enables user application to work properly with RoCE V2 when UD traffic is used. The series was tested successfully with mlx5 driver (lib, kernel) and can be accessed also from my openfabrics GIT at: git://openfabrics.org/~yishaih/libibverbs.git branch: rocev2_v0 No change is required in the application side, all is done transparently to the application. Will send shortly some libmlx5 changes that are required to work properly in its side. Yishai In General: Currently, UD traffic is not supported over RoCE V2 in libibverbs, since libibverbs can't differ between V1 and V2 GIDs and can't select GID index properly. This series contains two patches targeted to solve this: - The first one introduces an internal helper function, ibv_query_gid_type, to be used by libibverbs and its vendors libs in order to select the correct GID index. - The second patch changes init_ah_from_wc to use the first patch and set the GID index according to the RoCE version used. Noa Osherovich (2): Add ibv_query_gid_type to support RoCE v2 UD traffic Add support for UD traffic on RoCE v2 include/infiniband/driver.h | 7 ++ src/libibverbs.map | 2 + src/verbs.c | 243 ++++++++++++++++++++++++++++++++++++++++---- 3 files changed, 233 insertions(+), 19 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html