kernel/linux.git/include/rdma/restrack.h, branch linux-5.8.y

RDMA/nldev: Provide MR statistics

2019-10-22T18:33:31+00:00

Add RDMA nldev netlink interface for dumping MR statistics information. Output example: $ ./ibv_rc_pingpong -o -P -s 500000000 local address: LID 0x0001, QPN 0x00008a, PSN 0xf81096, GID :: $ rdma stat show mr dev mlx5_0 mrn 2 page_faults 122071 page_invalidations 0 Link: https://lore.kernel.org/r/20191016062308.11886-5-leon@kernel.org Signed-off-by: Erez Alfasi Signed-off-by: Leon Romanovsky Reviewed-by: Jason Gunthorpe Signed-off-by: Jason Gunthorpe

RDMA/mlx5: Return ODP type per MR

2019-10-22T18:22:47+00:00

Provide an ODP explicit/implicit type as part of 'rdma -dd resource show mr' dump. For example: $ rdma -dd resource show mr dev mlx5_0 mrn 1 rkey 0xa99a lkey 0xa99a mrlen 50000000 pdn 9 pid 7372 comm ibv_rc_pingpong drv_odp explicit For non-ODP MRs, we won't print "drv_odp ..." at all. Link: https://lore.kernel.org/r/20191016062308.11886-4-leon@kernel.org Signed-off-by: Erez Alfasi Signed-off-by: Leon Romanovsky Reviewed-by: Jason Gunthorpe Signed-off-by: Jason Gunthorpe

RDMA/restrack: Rewrite PID namespace check to be reliable

2019-08-20T17:44:44+00:00

task_active_pid_ns() is wrong API to check PID namespace because it posses some restrictions and return PID namespace where the process was allocated. It created mismatches with current namespace, which can be different. Rewrite whole rdma_is_visible_in_pid_ns() logic to provide reliable results without any relation to allocated PID namespace. Fixes: 8be565e65fa9 ("RDMA/nldev: Factor out the PID namespace check") Fixes: 6a6c306a09b5 ("RDMA/restrack: Make is_visible_in_pid_ns() as an API") Reviewed-by: Mark Zhang Signed-off-by: Leon Romanovsky Link: https://lore.kernel.org/r/20190815083834.9245-4-leon@kernel.org Signed-off-by: Doug Ledford

RDMA/core: Make rdma_counter.h compile stand alone

2019-07-09T12:44:47+00:00

5.4-rc1 will have new compile time debugging to test that headers can be compiled stand alone. Many rdma headers are already broken and excluded from the mechanism, however to avoid compile failures during the merge window fix enough so that the newly added header compiles clean. Fixes: 413d3347503b ("RDMA/counter: Add set/clear per-port auto mode support") Reported-by: Stephen Rothwell Signed-off-by: Jason Gunthorpe Signed-off-by: Mark Zhang

RDMA/restrack: Introduce statistic counter

2019-07-05T13:22:54+00:00

Introduce statistic counter as a new resource. It allows a user to monitor specific objects (e.g., QPs) by binding to a counter. In some cases a user counter resource is created with task other then "current", because its creation is done as part of rdmatool call. Signed-off-by: Mark Zhang Reviewed-by: Majd Dibbiny Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/restrack: Hide restrack DB from IB/core

2019-02-19T04:04:36+00:00

There is no need to expose internals of restrack DB to IB/core. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/restrack: Reduce scope of synchronization lock while updating DB

2019-02-19T04:04:36+00:00

XArray uses internal lock for updates to XArray. This means that our external RW lock is needed to ensure that entry is not deleted while we are performing iteration over list. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/restrack: Translate from ID to restrack object

2019-02-19T04:04:36+00:00

Add new general helper to get restrack entry given by ID and their respective type. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/restrack: Convert internal DB from hash to XArray

2019-02-19T04:04:36+00:00

The additions of .doit callbacks posses new access pattern to the resource entries by some user visible index. Back then, the legacy DB was implemented as hash because per-index access wasn't needed and XArray wasn't accepted yet. Acceptance of XArray together with per-index access requires the refresh of DB implementation. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/core: Use the ops infrastructure to keep all callbacks in one place

2019-01-31T04:34:21+00:00

As preparation to hide rdma_restrack_root, refactor the code to use the ops structure instead of a special callback which is hidden in rdma_restrack_root. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe