Hi Doug, Please find below the patchset from Moni. -------------------------------------------------------------------------- Creating a UD address handler (user or kernel) when link layer is Ethernet requires resolving the remote L3 address (GID) to a L2 address (MAC/VLAN). Doing it in kernel is easy with an interface in that the module ib_addr provides. In userspace such an interface does not exist and kernel help is required. Until now the way to resolve GID (which is the remote IP or a function of it) to a MAC was with an interface supplied by libnl. The implementation of this interface is heavy and fails on large load of requests to create an address handle. This series of patches is an infrastructure for user drivers that care for it to optimize the resolution of L3 to L2 addresses with uverbs interface. ------------------------------------------------------------------------ The patch #3 was originally posted by Knut Omang and Moni extended it to support all available drivers along with enhanced commit message. We are sending the same patch as it exists in our review system, but feel free to change authorship to Knut if it is matter. Thanks Available in the "topic/create_ah" topic branch of this git repo: git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git Or for browsing: https://git.kernel.org/cgit/linux/kernel/git/leon/linux-rdma.git/log/?h=topic/create_ah Moni Shoua (5): IB/core: Enhance ib_resolve_eth_dmac to be usable for creating AH IB/mlx5: Report that device supports user data response in create_ah IB/core: Let the verb create_ah return extended response to user IB/mlx5: Use kernel driver to help userspace create address handle IB/mlx5: Make create/destroy address handle available to userspace drivers/infiniband/core/core_priv.h | 3 - drivers/infiniband/core/uverbs_cmd.c | 19 ++++-- drivers/infiniband/core/verbs.c | 86 ++++++++++++++-------------- drivers/infiniband/hw/cxgb3/iwch_provider.c | 3 +- drivers/infiniband/hw/cxgb4/provider.c | 4 +- drivers/infiniband/hw/hns/hns_roce_ah.c | 3 +- drivers/infiniband/hw/hns/hns_roce_device.h | 3 +- drivers/infiniband/hw/i40iw/i40iw_verbs.c | 4 +- drivers/infiniband/hw/mlx4/ah.c | 4 +- drivers/infiniband/hw/mlx4/mlx4_ib.h | 3 +- drivers/infiniband/hw/mlx5/ah.c | 25 +++++++- drivers/infiniband/hw/mlx5/main.c | 5 +- drivers/infiniband/hw/mlx5/mlx5_ib.h | 3 +- drivers/infiniband/hw/mthca/mthca_provider.c | 4 +- drivers/infiniband/hw/nes/nes_verbs.c | 3 +- drivers/infiniband/hw/ocrdma/ocrdma_ah.c | 3 +- drivers/infiniband/hw/ocrdma/ocrdma_ah.h | 4 +- drivers/infiniband/hw/qedr/verbs.c | 3 +- drivers/infiniband/hw/qedr/verbs.h | 3 +- drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 4 +- drivers/infiniband/hw/usnic/usnic_ib_verbs.h | 4 +- drivers/infiniband/sw/rxe/rxe_verbs.c | 4 +- include/rdma/ib_verbs.h | 6 +- include/uapi/rdma/mlx5-abi.h | 7 +++ 24 files changed, 140 insertions(+), 70 deletions(-) -- 2.7.4 -- 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
