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 adds timestamp synchronization to the firmware. The second patch removes historical and never used HB definitions. Patch no. 3 is implementing the hardware clock frequency measuring interface. The fourth 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. Changes since v3: - improved comment in measure_clock() as suggested by Andy Shevchenko - changed release date and version for 6.6 in interface documentation Changes since v2: - fixed build error on a few of architectures - reduced unnecessary 64bit division. Changes since v1: - fixed build errors on a few of architectures - replaced macro DIV_ROUND_CLOSEST with DIV_ROUND_CLOSEST_ULL - included prerequisite patch "add internal timer for qat 4xxx" which initially was sent separately as this patchset was still in development. - timer patch reworked to use delayed work as suggested by Herbert Xu Damian Muszynski (5): crypto: qat - add internal timer for qat 4xxx 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 | 14 + .../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 | 4 + .../intel/qat/qat_common/adf_accel_devices.h | 13 + .../crypto/intel/qat/qat_common/adf_admin.c | 43 +++ .../intel/qat/qat_common/adf_cfg_strings.h | 2 + .../crypto/intel/qat/qat_common/adf_clock.c | 131 +++++++ .../crypto/intel/qat/qat_common/adf_clock.h | 14 + .../intel/qat/qat_common/adf_common_drv.h | 5 + .../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_gen4_timer.c | 70 ++++ .../intel/qat/qat_common/adf_gen4_timer.h | 21 ++ .../intel/qat/qat_common/adf_heartbeat.c | 336 ++++++++++++++++++ .../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 | 28 ++ drivers/crypto/intel/qat/qat_common/adf_isr.c | 6 + .../qat/qat_common/icp_qat_fw_init_admin.h | 23 +- .../qat/qat_dh895xcc/adf_dh895xcc_hw_data.c | 13 + .../qat/qat_dh895xcc/adf_dh895xcc_hw_data.h | 5 + 30 files changed, 1147 insertions(+), 16 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_gen4_timer.c create mode 100644 drivers/crypto/intel/qat/qat_common/adf_gen4_timer.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: 67b9bc0df80cfa241fe7a9c2b857c3e3efde982a -- 2.40.1
