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IB/mlx5: Enable subscription for device events over DEVX

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Enable subscription for device events over DEVX.

Each subscription is added to the two level xarray data structure
according to its event number and the DEVX object information in case was
given with the given target fd.

Those events will be reported over the given fd once will occur.
Downstream patches will mange the dispatching to any subscription.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Yishai Hadas
2019-06-30 19:23:31 +03:00
committed by Jason Gunthorpe
parent e337dd53ce
commit 7597385371
2 changed files with 562 additions and 7 deletions
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560
drivers/infiniband/hw/mlx5/devx.c
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File diff suppressed because it is too large Load Diff

9
include/uapi/rdma/mlx5_user_ioctl_cmds.h
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@@ -51,6 +51,7 @@ enum mlx5_ib_devx_methods {
MLX5_IB_METHOD_DEVX_OTHER = (1U << UVERBS_ID_NS_SHIFT),
MLX5_IB_METHOD_DEVX_QUERY_UAR,
MLX5_IB_METHOD_DEVX_QUERY_EQN,
MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT,
};
enum mlx5_ib_devx_other_attrs {
@@ -93,6 +94,14 @@ enum mlx5_ib_devx_obj_query_async_attrs {
MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_OUT_LEN,
};
enum mlx5_ib_devx_subscribe_event_attrs {
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_OBJ_HANDLE,
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_TYPE_NUM_LIST,
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_NUM,
MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_COOKIE,
};
enum mlx5_ib_devx_query_eqn_attrs {
MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC = (1U << UVERBS_ID_NS_SHIFT),
MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN,