linux-kernel - [PATCH net-next v7 0/2] add framework for selftests in devlink

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Message-Id: <20220727063719.35125-1-vikas.gupta@broadcom.com>
Date:   Wed, 27 Jul 2022 12:07:17 +0530
From:   Vikas Gupta <vikas.gupta@...adcom.com>
To:     jiri@...dia.com, kuba@...nel.org
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        davem@...emloft.net, dsahern@...nel.org,
        stephen@...workplumber.org, edumazet@...gle.com, pabeni@...hat.com,
        ast@...nel.org, leon@...nel.org, linux-doc@...r.kernel.org,
        corbet@....net, michael.chan@...adcom.com,
        andrew.gospodarek@...adcom.com,
        Vikas Gupta <vikas.gupta@...adcom.com>
Subject: [PATCH net-next v7 0/2] add framework for selftests in devlink

Hi,
  This patchset adds support for selftests in the devlink framework.
  It adds a callback .selftests_check and .selftests_run in devlink_ops.
  User can add test(s) suite which is subsequently passed to the driver 
  and driver can opt for running particular tests based on its capabilities.

  Patchset adds a flash based test for the bnxt_en driver.

  Suggested commands at user level would be as below:

changes from:
v6->v7:
  1) Changed the macros/enums name as suggested by kuba@...nel.org.
  2) Rebase with latest net-next. Dumpit impacted due to recent patches
     by jiri@...dia.com.
  net: devlink: make sure that devlink_try_get() works with valid pointer during xarray iteration
  net: devlink: move net check into devlinks_xa_for_each_registered_get()

v5->v6:
  Addressed change in .rst file only suggested by jiri@...dia.com in patch v5.
   
v4->v5:
  Addressed the changes requested by jiri@...dia.com in patch v4.

v3->v4:
  Addressed the changes requested by kuba@...nel.org in patch v3.

v2->v3:
   1)
   After discussions with jiri@...dia.com, passing a testmask from
   user to kernel is removed and a flag based arguments are adopted.
   This way we can have more than 32/64 selftests defined in the
   kernel.
   Below is the format from user to kernel and vice-versa.
   
   Kernel to user for show command . Users can know what all tests are
   supported by the driver. A return from kernel to user if driver
   supports TEST1, TEST4, and TEST7.
	______
	|NEST |
	|_____ |TEST1|TEST4|TEST7|...


    User to kernel to execute test: If user wants to execute test4, test8,
	test1...
	______
	|NEST |
	|_____ |TEST4|TEST8|TEST1|...

	After executing the tests kernel return to user.
	|NEST |
	|_____ | NEST|       |NEST|       |NEST|
	        TEST4,RES4   TEST8,RES8   TEST1, RES1
    
    2) Added dumpit in devlink for list/show command.

v1->v2:
  Addressed the changes requested by kuba@...nel.org in patch v1.
  Fixed the style issues. 


Thanks,
Vikas


Vikas Gupta (1):
  devlink: introduce framework for selftests

vikas (1):
  bnxt_en: implement callbacks for devlink selftests

 .../networking/devlink/devlink-selftests.rst  |  38 +++
 .../net/ethernet/broadcom/bnxt/bnxt_devlink.c |  61 +++++
 .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c |  24 +-
 .../net/ethernet/broadcom/bnxt/bnxt_ethtool.h |  12 +
 include/net/devlink.h                         |  21 ++
 include/uapi/linux/devlink.h                  |  29 +++
 net/core/devlink.c                            | 216 ++++++++++++++++++
 7 files changed, 389 insertions(+), 12 deletions(-)
 create mode 100644 Documentation/networking/devlink/devlink-selftests.rst

-- 
2.31.1


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