[PATCH v4 0/4] Support PERF MGMT for RXE

[zhenwei pi <zhenwei.pi@linux.dev>]

v4:
- drop rxe_ib_device_get_netdev and RXE_PORT, use 1 instead
- avoid UAF to get skb length
- remove one-line wrapper rxe_counter_get, use atomic64_read instead
- fix memory free for GID table, this is a new patch in this series.

v3:
- merge 'RDMA/rxe: use rxe_counter_get' into previous commit
- zero *out* MAD memory
- return success with error status rather than failure to avoid
  uplayer hang

v2:
- Fix overflow for PMA counter *link_downed_counter*
- Use *rxe_counter_get* instead of *atomic64_read* for hw-counters

v1:
Support PERF MGMT for RXE, add sent/received bytes for RXE counters,
also improve coding style.

zhenwei pi (4):
  RDMA/core: Fix memory free for GID table
  RDMA/rxe: remove rxe_ib_device_get_netdev() and RXE_PORT
  RDMA/rxe: add SENT/RCVD bytes
  RDMA/rxe: support perf mgmt GET method

 drivers/infiniband/core/cache.c             |   1 -
 drivers/infiniband/sw/rxe/Makefile          |   1 +
 drivers/infiniband/sw/rxe/rxe_hw_counters.c |   2 +
 drivers/infiniband/sw/rxe/rxe_hw_counters.h |   2 +
 drivers/infiniband/sw/rxe/rxe_loc.h         |   6 ++
 drivers/infiniband/sw/rxe/rxe_mad.c         | 101 ++++++++++++++++++++
 drivers/infiniband/sw/rxe/rxe_mcast.c       |   4 +-
 drivers/infiniband/sw/rxe/rxe_net.c         |   9 +-
 drivers/infiniband/sw/rxe/rxe_recv.c        |   6 ++
 drivers/infiniband/sw/rxe/rxe_verbs.c       |   5 +-
 drivers/infiniband/sw/rxe/rxe_verbs.h       |  10 +-
 11 files changed, 133 insertions(+), 14 deletions(-)
 create mode 100644 drivers/infiniband/sw/rxe/rxe_mad.c

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2.43.0