netdev - [PATCH rdma-next 0/5] Add optional-counters binding support

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Message-ID: <cover.1741097408.git.leonro@nvidia.com>
Date: Tue,  4 Mar 2025 16:15:24 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Leon Romanovsky <leonro@...dia.com>,
	linux-rdma@...r.kernel.org,
	Mark Bloch <mbloch@...dia.com>,
	netdev@...r.kernel.org,
	Patrisious Haddad <phaddad@...dia.com>,
	Saeed Mahameed <saeedm@...dia.com>,
	Tariq Toukan <tariqt@...dia.com>
Subject: [PATCH rdma-next 0/5] Add optional-counters binding support

From: Leon Romanovsky <leonro@...dia.com>

>From Patrisious,

Add optional-counters binding support together with new packets/bytes
counters. Previously optional-counters were on a per link basis, this
series allows users to bind optional-counters to a specific counter,
which allows tracking optional-counter over a specific QP group.

The support is added for both binding modes, automatic and manual,
in both cases the bound optional counters are those that are currently
configured over the link when trying to bind the QP.

In addition introduce four new optional-counters :
rdma_tx_bytes, rdma_tx_packets, rdma_rx_bytes, rdma_rx_packets
That just as their name implies allow tracking RDMA egress and ingress
traffic.

This is exposed to users through the iproute2 package which needs to be
updated as well to provide the support for this feature.

Example commands:
- rdma stat set link rocep8s0f0/1 optional-counters
  rdma_tx_bytes,rdma_rx_packets
	Enables rdma_tx_bytes and rdma_rx_packets optional-counters over
	the link.

- rdma stat qp set link rocep8s0f0/1 auto type on optional-counters on
	Enabled link automatic counter binding for QPs of same type,
	with optional-counter binding support.

- rdma stat qp bind link rocep8s0f0/1 lqpn 134
	Manually bind QP number 134 to all available counters.

- rdma stat qp bind link rocep8s0f0/1 lqpn 134 cntn 4
	Manually bind QP number 134 to counter number 4 depending on its
	configured counters.

Thanks

Patrisious Haddad (5):
  RDMA/mlx5: Add optional counters for RDMA_TX/RX_packets/bytes
  RDMA/core: Create and destroy rdma_counter using rdma_zalloc_drv_obj()
  RDMA/core: Add support to optional-counters binding configuration
  RDMA/core: Pass port to counter bind/unbind operations
  RDMA/mlx5: Support optional-counters binding for QPs

 drivers/infiniband/core/counters.c    |  52 +--
 drivers/infiniband/core/device.c      |   2 +
 drivers/infiniband/core/nldev.c       |  18 +-
 drivers/infiniband/core/verbs.c       |   2 +-
 drivers/infiniband/hw/mlx5/counters.c | 187 +++++++++-
 drivers/infiniband/hw/mlx5/counters.h |  20 ++
 drivers/infiniband/hw/mlx5/fs.c       | 474 +++++++++++++++++++++++++-
 drivers/infiniband/hw/mlx5/mlx5_ib.h  |  20 ++
 include/linux/mlx5/device.h           |   4 +-
 include/rdma/ib_verbs.h               |  11 +-
 include/rdma/rdma_counter.h           |   7 +-
 include/uapi/rdma/rdma_netlink.h      |   2 +
 12 files changed, 759 insertions(+), 40 deletions(-)

-- 
2.48.1