On Tue, 2019-06-18 at 20:15 +0300, Leon Romanovsky wrote: > From: Leon Romanovsky <leonro@xxxxxxxxxxxx> > > Changelog: > v0 -> v1: Normally 1st submission is V1 and 2nd is V2. so this should have been v1->v2. For mlx5-next patches: Acked-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx> > * Fix the unbind / hot unplug flows to work properly. > * Fix Ref count handling on the eventfd mode in some flow. > * Rebased to latest rdma-next > > Thanks > > ------------------------------------------------------------------- > ----------------- > From Yishai: > > This series enables RDMA applications that use the DEVX interface to > subscribe and read device asynchronous events. > > The solution is designed to allow extension of events in the future > without need to perform any changes in the driver code. > > To enable that few changes had been done in mlx5_core, it includes: > * Reading device event capabilities that are user related > (affiliated and un-affiliated) and set the matching mask upon > creating the matching EQ. > * Enable DEVX/mlx5_ib to register for ANY event instead of the > option to > get some hard-coded ones. > * Enable DEVX/mlx5_ib to get the device raw data for CQ completion > events. > * Enhance mlx5_core_create/destroy CQ to enable DEVX using them so > that CQ > events will be reported as well. > > In mlx5_ib layer the below changes were done: > * A new DEVX API was introduced to allocate an event channel by > using > the uverbs FD object type. > * Implement the FD channel operations to enable read/poo/close over > it. > * A new DEVX API was introduced to subscribe for specific events > over an > event channel. > * Manage an internal data structure over XA(s) to > subscribe/dispatch events > over the different event channels. > * Use from DEVX the mlx5_core APIs to create/destroy a CQ to be able > to > get its relevant events. > > Yishai > > Yishai Hadas (12): > net/mlx5: Fix mlx5_core_destroy_cq() error flow > net/mlx5: Use event mask based on device capabilities > net/mlx5: Expose the API to register for ANY event > net/mlx5: mlx5_core_create_cq() enhancements > net/mlx5: Report a CQ error event only when a handler was set > net/mlx5: Report EQE data upon CQ completion > net/mlx5: Expose device definitions for object events > IB/mlx5: Introduce MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD > IB/mlx5: Register DEVX with mlx5_core to get async events > IB/mlx5: Enable subscription for device events over DEVX > IB/mlx5: Implement DEVX dispatching event > IB/mlx5: Add DEVX support for CQ events > > drivers/infiniband/hw/mlx5/cq.c | 5 +- > drivers/infiniband/hw/mlx5/devx.c | 1082 > ++++++++++++++++- > drivers/infiniband/hw/mlx5/main.c | 10 +- > drivers/infiniband/hw/mlx5/mlx5_ib.h | 12 + > drivers/infiniband/hw/mlx5/odp.c | 3 +- > drivers/infiniband/hw/mlx5/qp.c | 2 +- > drivers/net/ethernet/mellanox/mlx5/core/cq.c | 21 +- > drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +- > .../net/ethernet/mellanox/mlx5/core/en_main.c | 3 +- > .../net/ethernet/mellanox/mlx5/core/en_txrx.c | 2 +- > drivers/net/ethernet/mellanox/mlx5/core/eq.c | 68 +- > .../ethernet/mellanox/mlx5/core/fpga/conn.c | 6 +- > drivers/net/ethernet/mellanox/mlx5/core/fw.c | 6 + > .../net/ethernet/mellanox/mlx5/core/lib/eq.h | 5 +- > include/linux/mlx5/cq.h | 6 +- > include/linux/mlx5/device.h | 6 +- > include/linux/mlx5/driver.h | 2 + > include/linux/mlx5/eq.h | 4 +- > include/linux/mlx5/mlx5_ifc.h | 34 +- > include/uapi/rdma/mlx5_user_ioctl_cmds.h | 19 + > include/uapi/rdma/mlx5_user_ioctl_verbs.h | 9 + > 21 files changed, 1237 insertions(+), 70 deletions(-) > > -- > 2.20.1 >
