Track memory allocation with restrack DB help

From: Leon Romanovsky <[email protected]>

The resource tracker has built-in kref counter to synchronize object release. It makes restrack perfect choice to be responsible for the memory lifetime of any object in which restrack entry is embedded.

In order to make it, the restrack was changed to be mandatory and all callers of rdma_restrack_add() started to rely on result returned from that call. Being mandatory means that all objects specific to restrack type must be tracked.

Before this series, the restrack and rdmatool were aid tools in debug session of user space applications, this caused to some of the functionality to be left behind, like support XRC QPs, device memory MRs and QP0/QP1 in multi-port devices.

This series fixes all mentioned above without extending rdmatool at all.

Thanks

Leon Romanovsky (13):
RDMA/cma: Delete from restrack DB after successful destroy RDMA/mlx5: Don't call to restrack recursively RDMA/restrack: Count references to the verbs objects RDMA/restrack: Simplify restrack tracking in kernel flows RDMA/restrack: Improve readability in task name management RDMA/cma: Be strict with attaching to CMA device RDMA/core: Allow drivers to disable restrack DB RDMA/counter: Combine allocation and bind logic RDMA/restrack: Store all special QPs in restrack DB RDMA/restrack: Make restrack DB mandatory for IB objects RDMA/restrack: Support all QP types
RDMA/core: Track device memory MRs
RDMA/restrack: Drop valid restrack field as source of ambiguity

Maor Gottlieb (1):
RDMA/verbs: Assign port number of special QPs

 drivers/infiniband/core/cma.c                 | 224 +++++++++++-------
 drivers/infiniband/core/core_priv.h           |  40 ++--
 drivers/infiniband/core/counters.c            | 178 +++++++-------
 drivers/infiniband/core/cq.c                  |  24 +-
 drivers/infiniband/core/rdma_core.c           |   3 +-
 drivers/infiniband/core/restrack.c            | 208 ++++++++--------
 drivers/infiniband/core/restrack.h            |  10 +-
 drivers/infiniband/core/uverbs_cmd.c          |  50 +++-
 drivers/infiniband/core/uverbs_std_types_cq.c |  12 +-
 drivers/infiniband/core/uverbs_std_types_mr.c |  10 +
 drivers/infiniband/core/uverbs_std_types_qp.c |   4 +-
 drivers/infiniband/core/verbs.c               |  94 ++++++--
 drivers/infiniband/hw/mlx5/gsi.c              |  16 +-
 drivers/infiniband/hw/mlx5/qp.c               |   2 +-
 include/rdma/ib_verbs.h                       |  10 +-
 include/rdma/restrack.h                       |  46 ++--
 16 files changed, 541 insertions(+), 390 deletions(-)

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2.26.2