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From:   Damian Muszynski <damian.muszynski@intel.com>
To:     herbert@gondor.apana.org.au
Cc:     linux-crypto@vger.kernel.org, qat-linux@intel.com,
        Damian Muszynski <damian.muszynski@intel.com>,
        Giovanni Cabiddu <giovanni.cabiddu@intel.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH 0/4] crypto: qat - add heartbeat feature
Date:   Thu, 15 Jun 2023 11:04:33 +0200
Message-Id: <20230615090437.436796-1-damian.muszynski@intel.com>
MIME-Version: 1.0
Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316
Content-Transfer-Encoding: 8bit
Precedence: bulk

This set introduces support for the QAT heartbeat feature. It allows
detection whenever device firmware or acceleration unit will hang.
We're adding this feature to allow our clients having a tool with
they could verify if all of the Quick Assist hardware resources are
healthy and operational.

QAT device firmware periodically writes counters to a specified physical
memory location. A pair of counters per thread is incremented at
the start and end of the main processing loop within the firmware.
Checking for Heartbeat consists of checking the validity of the pair
of counter values for each thread. Stagnant counters indicate
a firmware hang.

The first patch removes historical and never used HB definitions.
Patch no. 2 is implementing the hardware clock frequency measuring
interface.
The third introduces the main heartbeat implementation with the debugfs
interface.
The last patch implements an algorithm that allows the code to detect
which version of heartbeat API is used at the currently loaded firmware.

Signed-off-by: Damian Muszynski <damian.muszynski@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Damian Muszynski (4):
  crypto: qat - drop obsolete heartbeat interface
  crypto: qat - add measure clock frequency
  crypto: qat - add heartbeat feature
  crypto: qat - add heartbeat counters check

 Documentation/ABI/testing/debugfs-driver-qat  |  51 +++
 .../intel/qat/qat_4xxx/adf_4xxx_hw_data.c     |  11 +
 .../intel/qat/qat_4xxx/adf_4xxx_hw_data.h     |   4 +
 drivers/crypto/intel/qat/qat_4xxx/adf_drv.c   |   3 +
 .../intel/qat/qat_c3xxx/adf_c3xxx_hw_data.c   |  28 ++
 .../intel/qat/qat_c3xxx/adf_c3xxx_hw_data.h   |   7 +
 .../intel/qat/qat_c62x/adf_c62x_hw_data.c     |  28 ++
 .../intel/qat/qat_c62x/adf_c62x_hw_data.h     |   7 +
 drivers/crypto/intel/qat/qat_common/Makefile  |   3 +
 .../intel/qat/qat_common/adf_accel_devices.h  |  10 +
 .../crypto/intel/qat/qat_common/adf_admin.c   |  31 ++
 .../intel/qat/qat_common/adf_cfg_strings.h    |   2 +
 .../crypto/intel/qat/qat_common/adf_clock.c   | 127 +++++++
 .../crypto/intel/qat/qat_common/adf_clock.h   |  14 +
 .../intel/qat/qat_common/adf_common_drv.h     |   2 +
 .../crypto/intel/qat/qat_common/adf_dbgfs.c   |   9 +-
 .../intel/qat/qat_common/adf_gen2_config.c    |   7 +
 .../intel/qat/qat_common/adf_gen2_hw_data.h   |   3 +
 .../intel/qat/qat_common/adf_gen4_hw_data.h   |   3 +
 .../intel/qat/qat_common/adf_heartbeat.c      | 327 ++++++++++++++++++
 .../intel/qat/qat_common/adf_heartbeat.h      |  79 +++++
 .../qat/qat_common/adf_heartbeat_dbgfs.c      | 194 +++++++++++
 .../qat/qat_common/adf_heartbeat_dbgfs.h      |  12 +
 .../crypto/intel/qat/qat_common/adf_init.c    |  15 +
 .../qat/qat_common/icp_qat_fw_init_admin.h    |  20 +-
 .../qat/qat_dh895xcc/adf_dh895xcc_hw_data.c   |  13 +
 .../qat/qat_dh895xcc/adf_dh895xcc_hw_data.h   |   5 +
 27 files changed, 998 insertions(+), 17 deletions(-)
 create mode 100644 drivers/crypto/intel/qat/qat_common/adf_clock.c
 create mode 100644 drivers/crypto/intel/qat/qat_common/adf_clock.h
 create mode 100644 drivers/crypto/intel/qat/qat_common/adf_heartbeat.c
 create mode 100644 drivers/crypto/intel/qat/qat_common/adf_heartbeat.h
 create mode 100644 drivers/crypto/intel/qat/qat_common/adf_heartbeat_dbgfs.c
 create mode 100644 drivers/crypto/intel/qat/qat_common/adf_heartbeat_dbgfs.h


base-commit: 926f061ec16ed195331e950755fd74c897aefef3
-- 
2.40.1