Hi Doug, This series adds memory window user-space support to the mlx5 driver. Memory windows in mlx5 based hardware consists of a Mkey pointing to another set of MKeys by using KLMs as pointers. The required kernel part for user-space memory windows consists of allocating and deallocating these MKeys and exposing the supported functionality via query_device. Currently, we support Mkeys that either check the QP or doesn't check it. This correspond to memory window of type 2B and 1 (respectively). The user-space driver could pass the required number of KLMs in order to create more sophisticated Mkeys. Patch 0001 refactores the mlx5_core_mr to mlx5_core_mkey, as mr doesn't represent accurately enough the usage of mkey to memory windows. Patch 0002 adds vendor specific data to ib_uverbs_alloc_mw. Patch 0003 adds the actual memory window support to the mlx5 driver. This series depends on "net/mlx5: Use offset based reserved field names in the IFC header file" posted and accepted to net. This series conflicts (trivially) with memory re-registeration for mlx5 posted on linux-rdma. Thanks, Matan Matan Barak (3): net/mlx5: Refactor mlx5_core_mr to mkey IB/core: Add vendor's specific data to alloc mw IB/mlx5: Add memory windows allocation support drivers/infiniband/core/uverbs_cmd.c | 8 +- drivers/infiniband/hw/cxgb3/iwch_provider.c | 3 +- drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 3 +- drivers/infiniband/hw/cxgb4/mem.c | 4 +- drivers/infiniband/hw/mlx4/mlx4_ib.h | 3 +- drivers/infiniband/hw/mlx4/mr.c | 4 +- drivers/infiniband/hw/mlx5/cq.c | 16 +-- drivers/infiniband/hw/mlx5/main.c | 13 +++ drivers/infiniband/hw/mlx5/mlx5_ib.h | 20 +++- drivers/infiniband/hw/mlx5/mr.c | 133 ++++++++++++++++++---- drivers/infiniband/hw/mlx5/odp.c | 10 +- drivers/infiniband/hw/mlx5/user.h | 7 ++ drivers/infiniband/hw/nes/nes_verbs.c | 3 +- drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 12 +- drivers/net/ethernet/mellanox/mlx5/core/main.c | 6 +- drivers/net/ethernet/mellanox/mlx5/core/mr.c | 54 ++++----- include/linux/mlx5/driver.h | 24 ++-- include/linux/mlx5/mlx5_ifc.h | 4 +- include/linux/mlx5/qp.h | 4 +- include/rdma/ib_verbs.h | 3 +- 21 files changed, 237 insertions(+), 99 deletions(-) -- 2.5.0 -- 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
