netdev - [iwl-next 0/6] Add RDMA support for Intel IPU E2000 in idpf

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Message-ID: <20250523170435.668-1-tatyana.e.nikolova@intel.com>
Date: Fri, 23 May 2025 12:04:29 -0500
From: Tatyana Nikolova <tatyana.e.nikolova@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: jgg@...dia.com,
	leon@...nel.org,
	linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org,
	kuba@...nel.org,
	anthony.l.nguyen@...el.com,
	Tatyana Nikolova <tatyana.e.nikolova@...el.com>
Subject: [iwl-next 0/6] Add RDMA support for Intel IPU E2000 in idpf

This idpf patch series is the second part of the staged submission
for introducing RDMA RoCEv2 support for the IPU E2000 line of products,
referred to as GEN3.

To support RDMA GEN3 devices, the idpf driver uses
common definitions of the IIDC interface and implements
specific device functionality in iidc_rdma_idpf.h.

The IPU model can host one or more logical network endpoints called
vPorts per PCI function that are flexibly associated with a physical
port or an internal communication port.

Other features as it pertains to GEN3 devices include:
* MMIO learning
* RDMA capability negotiation
* RDMA vectors discovery between idpf and control plane

These patches are split from the submission
"Add RDMA support for Intel IPU E2000 (GEN3)" [1]
and are based on 6.15-rc1 + "Prepare for Intel IPU E2000 (GEN3)" [4]. 
A shared pull request will be sent following review.

Changelog:

Changes since split:
* Replace core dev_ops with exported symbols
* Align with new header split scheme (iidc_rdma.h common header
and iidc_rdma_idpf.h specific header)
* Align with new naming scheme (idc_rdma -> iidc_rdma)
* The idpf patches are submitted separately from the ice and
irdma changes.

At [3]:
* Reduce required minimum RDMA vectors to 2

At [2]:
* RDMA vector number adjustment
* Fix unplugging vport auxiliary device twice
* General cleanup and minor improvements

[1] https://lore.kernel.org/all/20240724233917.704-1-tatyana.e.nikolova@intel.com/
[2] https://lore.kernel.org/all/20240824031924.421-1-tatyana.e.nikolova@intel.com/
[3] https://lore.kernel.org/all/20250207194931.1569-1-tatyana.e.nikolova@intel.com/
[4] https://lore.kernel.org/all/20250509200712.2911060-1-anthony.l.nguyen@intel.com/

Joshua Hay (6):
  idpf: use reserved RDMA vectors from control plane
  idpf: implement core RDMA auxiliary dev create, init, and destroy
  idpf: implement RDMA vport auxiliary dev create, init, and destroy
  idpf: implement remaining IDC RDMA core callbacks and handlers
  idpf: implement IDC vport aux driver MTU change handler
  idpf: implement get LAN MMIO memory regions

 drivers/net/ethernet/intel/idpf/Makefile      |   1 +
 drivers/net/ethernet/intel/idpf/idpf.h        | 117 ++++-
 .../net/ethernet/intel/idpf/idpf_controlq.c   |  14 +-
 .../net/ethernet/intel/idpf/idpf_controlq.h   |  19 +-
 drivers/net/ethernet/intel/idpf/idpf_dev.c    |  49 +-
 drivers/net/ethernet/intel/idpf/idpf_idc.c    | 496 ++++++++++++++++++
 drivers/net/ethernet/intel/idpf/idpf_lib.c    |  93 +++-
 drivers/net/ethernet/intel/idpf/idpf_main.c   |  32 +-
 drivers/net/ethernet/intel/idpf/idpf_mem.h    |   8 +-
 drivers/net/ethernet/intel/idpf/idpf_txrx.h   |   1 +
 drivers/net/ethernet/intel/idpf/idpf_vf_dev.c |  45 +-
 .../net/ethernet/intel/idpf/idpf_virtchnl.c   | 190 ++++++-
 .../net/ethernet/intel/idpf/idpf_virtchnl.h   |   3 +
 drivers/net/ethernet/intel/idpf/virtchnl2.h   |  52 +-
 include/linux/net/intel/iidc_rdma_idpf.h      |  55 ++
 15 files changed, 1104 insertions(+), 71 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/idpf/idpf_idc.c
 create mode 100644 include/linux/net/intel/iidc_rdma_idpf.h

-- 
2.37.3