Linux-RDMA Archive on lore.kernel.org
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From: Shiraz Saleem <shiraz.saleem@intel.com>
To: dledford@redhat.com, jgg@nvidia.com, kuba@kernel.org,
	davem@davemloft.net
Cc: linux-rdma@vger.kernel.org, netdev@vger.kernel.org,
	david.m.ertman@intel.com, anthony.l.nguyen@intel.com,
	Shiraz Saleem <shiraz.saleem@intel.com>
Subject: [PATCH v4 00/23] Add Intel Ethernet Protocol Driver for RDMA (irdma)
Date: Tue,  6 Apr 2021 16:01:02 -0500
Message-ID: <20210406210125.241-1-shiraz.saleem@intel.com> (raw)

The following patch series introduces a unified Intel Ethernet Protocol Driver
for RDMA (irdma) for the X722 iWARP device and a new E810 device which supports
iWARP and RoCEv2. The irdma module replaces the legacy i40iw module for X722
and extends the ABI already defined for i40iw. It is backward compatible with
legacy X722 rdma-core provider (libi40iw).

X722 and E810 are PCI network devices that are RDMA capable. The RDMA block of
this parent device is represented via an auxiliary device exported to 'irdma'
using the core auxiliary bus infrastructure recently added for 5.11 kernel.
The parent PCI netdev drivers 'i40e' and 'ice' register auxiliary RDMA devices
with private data/ops encapsulated that bind to auxiliary drivers registered
in irdma module.

This patchset was initially submitted as an RFC where in we got feedback
to come up with a generic scheme for RDMA drivers to attach to a PCI device
owned by netdev PCI driver [1]. Solutions using platform bus and MFD were explored
but rejected by the community and the consensus was to add a new bus infrastructure
to support this usage model.

Further revisions of this series along with the auxiliary bus were submitted
[2]. At this point, Greg KH requested that we take the auxiliary bus review and
revision process to an internal mailing list and garner the buy-in of a respected
kernel contributor, along with consensus of all major stakeholders including
Nvidia (for mlx5 sub-function use-case) and Intel sound driver. This process
took a while and stalled further development/review of this netdev/irdma series.
The auxiliary bus was eventually merged in 5.11.

Between v1 to v2 of this submission, the IIDC went through a major re-write
based on the feedback and we hope it is now more in alignment with what the
community wants.

This series is built against rdma for-next and currently includes the netdev
patches for ease of review. This includes updates to 'ice' driver to provide
RDMA support and converts 'i40e' driver to use the auxiliary bus infrastructure.
Once the patches are closer to merging, a shared pull request will be submitted.

v3-->v4:
* Fixup W=1 warnings in ice patches
* Fix issues uncovered by pyverbs for create user AH and multicast
* Fix descriptor set issue for fast register introduced during port to FIELD_PREP in v2 submission 

v2-->v3:
* rebase rdma for-next. Adapt to core change '1fb7f8973f51 ("RDMA: Support more than 255 rdma ports")'
* irdma Kconfig updates to conform with linux coding style.
* Fix a 0-day build issue
* Remove rdma_resource_limits selector devlink param. Follow on patch to be submitted
for it with suggestion from Parav to use devlink resource.
* Capitalize abbreviations in ice idc. e.g. 'aux' to 'AUX'

v1-->v2:
* Remove IIDC channel OPs - open, close, peer_register and peer_unregister.
  And all its associated FSM in ice PCI core driver.
* Use device_lock in ice PCI core driver while issuing IIDC ops callbacks.
* Remove peer_* verbiage from shared IIDC header and rename the structs and channel ops
  with iidc_core*/iidc_auxiliary*.
* Allocate ib_device at start and register it at the end of drv.probe() in irdma gen2 auxiliary driver.
* Use ibdev_* printing extensively throughout most of the driver
  Remove idev_to_dev, ihw_to_dev macros as no longer required in new print scheme.
* Do not bump ABI ver. to 6 in irdma. Maintain irdma ABI ver. at 5 for legacy i40iw user-provider compatibility.
* Add a boundary check in irdma_alloc_ucontext to fail binding with < 4 user-space provider version.
* Remove devlink from irdma. Add 2 new rdma-related devlink parameters added to ice PCI core driver.
* Use FIELD_PREP/FIELD_GET/GENMASK on get/set of descriptor fields versus home grown ones LS_*/RS_*.
* Bind 2 separate auxiliary drivers in irdma - one for gen1 and one for gen2 and future devices.
* Misc. driver fixes in irdma

[1] https://patchwork.kernel.org/project/linux-rdma/patch/20190215171107.6464-2-shiraz.saleem@intel.com/
[2] https://lore.kernel.org/linux-rdma/20200520070415.3392210-1-jeffrey.t.kirsher@intel.com/

Dave Ertman (4):
  iidc: Introduce iidc.h
  ice: Initialize RDMA support
  ice: Implement iidc operations
  ice: Register auxiliary device to provide RDMA

Michael J. Ruhl (1):
  RDMA/irdma: Add dynamic tracing for CM

Mustafa Ismail (13):
  RDMA/irdma: Register auxiliary driver and implement private channel
    OPs
  RDMA/irdma: Implement device initialization definitions
  RDMA/irdma: Implement HW Admin Queue OPs
  RDMA/irdma: Add HMC backing store setup functions
  RDMA/irdma: Add privileged UDA queue implementation
  RDMA/irdma: Add QoS definitions
  RDMA/irdma: Add connection manager
  RDMA/irdma: Add PBLE resource manager
  RDMA/irdma: Implement device supported verb APIs
  RDMA/irdma: Add RoCEv2 UD OP support
  RDMA/irdma: Add user/kernel shared libraries
  RDMA/irdma: Add miscellaneous utility definitions
  RDMA/irdma: Add ABI definitions

Shiraz Saleem (5):
  ice: Add devlink params support
  i40e: Prep i40e header for aux bus conversion
  i40e: Register auxiliary devices to provide RDMA
  RDMA/irdma: Add irdma Kconfig/Makefile and remove i40iw
  RDMA/irdma: Update MAINTAINERS file

 Documentation/ABI/stable/sysfs-class-infiniband    |   20 -
 .../networking/devlink/devlink-params.rst          |    6 +
 Documentation/networking/devlink/ice.rst           |   13 +
 MAINTAINERS                                        |   17 +-
 drivers/infiniband/Kconfig                         |    2 +-
 drivers/infiniband/hw/Makefile                     |    2 +-
 drivers/infiniband/hw/i40iw/Kconfig                |    9 -
 drivers/infiniband/hw/i40iw/Makefile               |    9 -
 drivers/infiniband/hw/i40iw/i40iw.h                |  602 --
 drivers/infiniband/hw/i40iw/i40iw_cm.c             | 4419 --------------
 drivers/infiniband/hw/i40iw/i40iw_cm.h             |  462 --
 drivers/infiniband/hw/i40iw/i40iw_ctrl.c           | 5243 -----------------
 drivers/infiniband/hw/i40iw/i40iw_d.h              | 1746 ------
 drivers/infiniband/hw/i40iw/i40iw_hmc.c            |  821 ---
 drivers/infiniband/hw/i40iw/i40iw_hmc.h            |  241 -
 drivers/infiniband/hw/i40iw/i40iw_hw.c             |  851 ---
 drivers/infiniband/hw/i40iw/i40iw_main.c           | 2066 -------
 drivers/infiniband/hw/i40iw/i40iw_osdep.h          |  195 -
 drivers/infiniband/hw/i40iw/i40iw_p.h              |  129 -
 drivers/infiniband/hw/i40iw/i40iw_pble.c           |  613 --
 drivers/infiniband/hw/i40iw/i40iw_pble.h           |  131 -
 drivers/infiniband/hw/i40iw/i40iw_puda.c           | 1496 -----
 drivers/infiniband/hw/i40iw/i40iw_puda.h           |  188 -
 drivers/infiniband/hw/i40iw/i40iw_register.h       | 1030 ----
 drivers/infiniband/hw/i40iw/i40iw_status.h         |  101 -
 drivers/infiniband/hw/i40iw/i40iw_type.h           | 1358 -----
 drivers/infiniband/hw/i40iw/i40iw_uk.c             | 1200 ----
 drivers/infiniband/hw/i40iw/i40iw_user.h           |  422 --
 drivers/infiniband/hw/i40iw/i40iw_utils.c          | 1518 -----
 drivers/infiniband/hw/i40iw/i40iw_verbs.c          | 2652 ---------
 drivers/infiniband/hw/i40iw/i40iw_verbs.h          |  179 -
 drivers/infiniband/hw/i40iw/i40iw_vf.c             |   85 -
 drivers/infiniband/hw/i40iw/i40iw_vf.h             |   62 -
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c       |  759 ---
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h       |  124 -
 drivers/infiniband/hw/irdma/Kconfig                |   11 +
 drivers/infiniband/hw/irdma/Makefile               |   27 +
 drivers/infiniband/hw/irdma/cm.c                   | 4425 ++++++++++++++
 drivers/infiniband/hw/irdma/cm.h                   |  417 ++
 drivers/infiniband/hw/irdma/ctrl.c                 | 6143 ++++++++++++++++++++
 drivers/infiniband/hw/irdma/defs.h                 | 1162 ++++
 drivers/infiniband/hw/irdma/hmc.c                  |  739 +++
 drivers/infiniband/hw/irdma/hmc.h                  |  180 +
 drivers/infiniband/hw/irdma/hw.c                   | 2755 +++++++++
 drivers/infiniband/hw/irdma/i40iw_hw.c             |  216 +
 drivers/infiniband/hw/irdma/i40iw_hw.h             |  160 +
 drivers/infiniband/hw/irdma/i40iw_if.c             |  229 +
 drivers/infiniband/hw/irdma/icrdma_hw.c            |   84 +
 drivers/infiniband/hw/irdma/icrdma_hw.h            |   71 +
 drivers/infiniband/hw/irdma/irdma.h                |  157 +
 drivers/infiniband/hw/irdma/main.c                 |  382 ++
 drivers/infiniband/hw/irdma/main.h                 |  565 ++
 drivers/infiniband/hw/irdma/osdep.h                |   86 +
 drivers/infiniband/hw/irdma/pble.c                 |  525 ++
 drivers/infiniband/hw/irdma/pble.h                 |  136 +
 drivers/infiniband/hw/irdma/protos.h               |  116 +
 drivers/infiniband/hw/irdma/puda.c                 | 1749 ++++++
 drivers/infiniband/hw/irdma/puda.h                 |  194 +
 drivers/infiniband/hw/irdma/status.h               |   71 +
 drivers/infiniband/hw/irdma/trace.c                |  112 +
 drivers/infiniband/hw/irdma/trace.h                |    3 +
 drivers/infiniband/hw/irdma/trace_cm.h             |  458 ++
 drivers/infiniband/hw/irdma/type.h                 | 1717 ++++++
 drivers/infiniband/hw/irdma/uda.c                  |  379 ++
 drivers/infiniband/hw/irdma/uda.h                  |   63 +
 drivers/infiniband/hw/irdma/uda_d.h                |  128 +
 drivers/infiniband/hw/irdma/uk.c                   | 1737 ++++++
 drivers/infiniband/hw/irdma/user.h                 |  464 ++
 drivers/infiniband/hw/irdma/utils.c                | 2543 ++++++++
 drivers/infiniband/hw/irdma/verbs.c                | 4544 +++++++++++++++
 drivers/infiniband/hw/irdma/verbs.h                |  225 +
 drivers/infiniband/hw/irdma/ws.c                   |  406 ++
 drivers/infiniband/hw/irdma/ws.h                   |   41 +
 drivers/net/ethernet/intel/Kconfig                 |    2 +
 drivers/net/ethernet/intel/i40e/i40e.h             |    2 +
 drivers/net/ethernet/intel/i40e/i40e_client.c      |  156 +-
 drivers/net/ethernet/intel/i40e/i40e_main.c        |    1 +
 drivers/net/ethernet/intel/ice/Makefile            |    1 +
 drivers/net/ethernet/intel/ice/ice.h               |   40 +
 drivers/net/ethernet/intel/ice/ice_adminq_cmd.h    |   33 +
 drivers/net/ethernet/intel/ice/ice_common.c        |  217 +-
 drivers/net/ethernet/intel/ice/ice_common.h        |    9 +
 drivers/net/ethernet/intel/ice/ice_dcb_lib.c       |   58 +
 drivers/net/ethernet/intel/ice/ice_dcb_lib.h       |    3 +
 drivers/net/ethernet/intel/ice/ice_devlink.c       |   92 +-
 drivers/net/ethernet/intel/ice/ice_devlink.h       |    5 +
 drivers/net/ethernet/intel/ice/ice_hw_autogen.h    |    3 +-
 drivers/net/ethernet/intel/ice/ice_idc.c           |  793 +++
 drivers/net/ethernet/intel/ice/ice_idc_int.h       |   20 +
 drivers/net/ethernet/intel/ice/ice_lag.c           |    2 +
 drivers/net/ethernet/intel/ice/ice_lib.c           |   11 +
 drivers/net/ethernet/intel/ice/ice_lib.h           |    2 +-
 drivers/net/ethernet/intel/ice/ice_main.c          |  160 +-
 drivers/net/ethernet/intel/ice/ice_sched.c         |   69 +-
 drivers/net/ethernet/intel/ice/ice_switch.c        |   27 +
 drivers/net/ethernet/intel/ice/ice_switch.h        |    4 +
 drivers/net/ethernet/intel/ice/ice_type.h          |    4 +
 drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c   |   34 +
 include/linux/net/intel/i40e_client.h              |   14 +
 include/linux/net/intel/iidc.h                     |  242 +
 include/net/devlink.h                              |    4 +
 include/uapi/rdma/i40iw-abi.h                      |  107 -
 include/uapi/rdma/ib_user_ioctl_verbs.h            |    1 +
 include/uapi/rdma/irdma-abi.h                      |  116 +
 net/core/devlink.c                                 |    5 +
 105 files changed, 35528 insertions(+), 28900 deletions(-)
 delete mode 100644 drivers/infiniband/hw/i40iw/Kconfig
 delete mode 100644 drivers/infiniband/hw/i40iw/Makefile
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_cm.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_cm.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_ctrl.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_d.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_hmc.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_hmc.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_hw.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_main.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_osdep.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_p.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_pble.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_pble.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_puda.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_puda.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_register.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_status.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_type.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_uk.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_user.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_utils.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_verbs.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_verbs.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_vf.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_vf.h
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c
 delete mode 100644 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h
 create mode 100644 drivers/infiniband/hw/irdma/Kconfig
 create mode 100644 drivers/infiniband/hw/irdma/Makefile
 create mode 100644 drivers/infiniband/hw/irdma/cm.c
 create mode 100644 drivers/infiniband/hw/irdma/cm.h
 create mode 100644 drivers/infiniband/hw/irdma/ctrl.c
 create mode 100644 drivers/infiniband/hw/irdma/defs.h
 create mode 100644 drivers/infiniband/hw/irdma/hmc.c
 create mode 100644 drivers/infiniband/hw/irdma/hmc.h
 create mode 100644 drivers/infiniband/hw/irdma/hw.c
 create mode 100644 drivers/infiniband/hw/irdma/i40iw_hw.c
 create mode 100644 drivers/infiniband/hw/irdma/i40iw_hw.h
 create mode 100644 drivers/infiniband/hw/irdma/i40iw_if.c
 create mode 100644 drivers/infiniband/hw/irdma/icrdma_hw.c
 create mode 100644 drivers/infiniband/hw/irdma/icrdma_hw.h
 create mode 100644 drivers/infiniband/hw/irdma/irdma.h
 create mode 100644 drivers/infiniband/hw/irdma/main.c
 create mode 100644 drivers/infiniband/hw/irdma/main.h
 create mode 100644 drivers/infiniband/hw/irdma/osdep.h
 create mode 100644 drivers/infiniband/hw/irdma/pble.c
 create mode 100644 drivers/infiniband/hw/irdma/pble.h
 create mode 100644 drivers/infiniband/hw/irdma/protos.h
 create mode 100644 drivers/infiniband/hw/irdma/puda.c
 create mode 100644 drivers/infiniband/hw/irdma/puda.h
 create mode 100644 drivers/infiniband/hw/irdma/status.h
 create mode 100644 drivers/infiniband/hw/irdma/trace.c
 create mode 100644 drivers/infiniband/hw/irdma/trace.h
 create mode 100644 drivers/infiniband/hw/irdma/trace_cm.h
 create mode 100644 drivers/infiniband/hw/irdma/type.h
 create mode 100644 drivers/infiniband/hw/irdma/uda.c
 create mode 100644 drivers/infiniband/hw/irdma/uda.h
 create mode 100644 drivers/infiniband/hw/irdma/uda_d.h
 create mode 100644 drivers/infiniband/hw/irdma/uk.c
 create mode 100644 drivers/infiniband/hw/irdma/user.h
 create mode 100644 drivers/infiniband/hw/irdma/utils.c
 create mode 100644 drivers/infiniband/hw/irdma/verbs.c
 create mode 100644 drivers/infiniband/hw/irdma/verbs.h
 create mode 100644 drivers/infiniband/hw/irdma/ws.c
 create mode 100644 drivers/infiniband/hw/irdma/ws.h
 create mode 100644 drivers/net/ethernet/intel/ice/ice_idc.c
 create mode 100644 drivers/net/ethernet/intel/ice/ice_idc_int.h
 create mode 100644 include/linux/net/intel/iidc.h
 delete mode 100644 include/uapi/rdma/i40iw-abi.h
 create mode 100644 include/uapi/rdma/irdma-abi.h

-- 
1.8.3.1


             reply index

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-06 21:01 Shiraz Saleem [this message]
2021-04-06 21:01 ` [PATCH v4 01/23] iidc: Introduce iidc.h Shiraz Saleem
2021-04-07 15:44   ` Jason Gunthorpe
2021-04-07 20:58     ` Saleem, Shiraz
2021-04-07 22:43       ` Jason Gunthorpe
2021-04-08  7:14         ` Leon Romanovsky
2021-04-09  1:38           ` Saleem, Shiraz
2021-04-11 11:48             ` Leon Romanovsky
2021-04-12 14:50         ` Saleem, Shiraz
2021-04-12 16:12           ` Jason Gunthorpe
2021-04-15 17:36             ` Saleem, Shiraz
2021-04-07 17:35   ` Jason Gunthorpe
2021-04-12 14:51     ` Saleem, Shiraz
2021-04-06 21:01 ` [PATCH v4 02/23] ice: Initialize RDMA support Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 03/23] ice: Implement iidc operations Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 04/23] ice: Register auxiliary device to provide RDMA Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 05/23] ice: Add devlink params support Shiraz Saleem
2021-04-07 14:57   ` Jason Gunthorpe
2021-04-07 20:58     ` Saleem, Shiraz
2021-04-07 22:46       ` Jason Gunthorpe
2021-04-12 14:50         ` Saleem, Shiraz
2021-04-12 19:07           ` Parav Pandit
2021-04-13  4:03             ` Parav Pandit
2021-04-13 14:40             ` Saleem, Shiraz
2021-04-13 17:36               ` Parav Pandit
2021-04-14  0:21                 ` Saleem, Shiraz
2021-04-14  5:27                   ` Parav Pandit
2021-04-18 11:51                   ` Leon Romanovsky
2021-04-06 21:01 ` [PATCH v4 06/23] i40e: Prep i40e header for aux bus conversion Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 07/23] i40e: Register auxiliary devices to provide RDMA Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 08/23] RDMA/irdma: Register auxiliary driver and implement private channel OPs Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 09/23] RDMA/irdma: Implement device initialization definitions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 10/23] RDMA/irdma: Implement HW Admin Queue OPs Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 11/23] RDMA/irdma: Add HMC backing store setup functions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 12/23] RDMA/irdma: Add privileged UDA queue implementation Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 13/23] RDMA/irdma: Add QoS definitions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 14/23] RDMA/irdma: Add connection manager Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 15/23] RDMA/irdma: Add PBLE resource manager Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 16/23] RDMA/irdma: Implement device supported verb APIs Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 17/23] RDMA/irdma: Add RoCEv2 UD OP support Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 18/23] RDMA/irdma: Add user/kernel shared libraries Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 19/23] RDMA/irdma: Add miscellaneous utility definitions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 20/23] RDMA/irdma: Add dynamic tracing for CM Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 21/23] RDMA/irdma: Add ABI definitions Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 22/23] RDMA/irdma: Add irdma Kconfig/Makefile and remove i40iw Shiraz Saleem
2021-04-06 21:01 ` [PATCH v4 23/23] RDMA/irdma: Update MAINTAINERS file Shiraz Saleem
2021-04-06 21:05 ` [PATCH v4 00/23] Add Intel Ethernet Protocol Driver for RDMA (irdma) Saleem, Shiraz
2021-04-06 23:15 ` Jason Gunthorpe
2021-04-06 23:30   ` Saleem, Shiraz
2021-04-07  0:18     ` Saleem, Shiraz
2021-04-07 11:31     ` Jason Gunthorpe
2021-04-07 15:06       ` Saleem, Shiraz

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