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Subject[PATCH rdma-next v1 00/13] Track memory allocation with restrack DB help
Date
From: Leon Romanovsky <leonro@nvidia.com>

Changelog:
v1:
* Fixed rebase error, deleted second assignment of qp_type.
* Rebased code on latests rdma-next, the changes in cma.c caused to change
in patch "RDMA/cma: Delete from restrack DB after successful destroy".
* Dropped patch of port assignment, it is already done as part of this
series.
* I didn't add @calller description, regular users should not use _named() funciton.
v0: https://lore.kernel.org/lkml/20200824104415.1090901-1-leon@kernel.org

----------------------------------------------------------------------------------
Hi,

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

drivers/infiniband/core/cma.c | 225 +++++++++++-------
drivers/infiniband/core/core_priv.h | 39 ++-
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 | 91 +++++--
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, 537 insertions(+), 391 deletions(-)

--
2.26.2

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