RE: [PATCH 00/22] Add Intel Ethernet Protocol Driver for RDMA (irdma)

Subject: Re: [PATCH 00/22] Add Intel Ethernet Protocol Driver for RDMA (irdma)

On Fri, Jan 22, 2021 at 05:48:05PM -0600, Shiraz Saleem wrote:

quoted

From: "Shiraz, Saleem" <redacted>

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 driver replaces
the legacy i40iw driver for X722 and extends the ABI already defined
for i40iw. It is backward compatible with legacy X722 rdma-core provider

(libi40iw).

quoted

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'

quoted

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 an 'irdma' auxiliary

driver.

quoted

This series is a follow on to an RFC series [1]. This series was built
against rdma for-next and currently includes the netdev patches for ease of

review.

quoted

This include 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, this series will be split into
a netdev-next and rdma-next patch series targeted at their respective
subsystems with Patch #1 and Patch #5 included in both. This is the
shared header file that will allow each series to independently compile.

[1]
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 an 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

I didn't check, but I will remind you to compile with make W=1 and ensure this is all
clean. Lee is doing good work making RDMA clean for W=1.

Yes. That is done.